MadButterfly: src/shape_stext.c annotate

annotate src/shape_stext.c @ 425:09a66063b25d

Fix issue of missed function for unittest. If we make for unittest, it will be failed for missed functions. Since we change name of functions to avoid type conflict, ld can not find the functions with original names. So, we make dummy functions to resolve it. We had better decouple them to avoid this problem.

author	Thinker K.F. Li <thinker@branda.to>
date	Tue, 28 Jul 2009 15:11:42 +0800
parents	585baa462778
children	aa320386072c

rev	line source
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	1 #include <stdio.h>
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	2 #include <cairo.h>
394 b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	3 #include <cairo-ft.h>
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	4 #include <fontconfig/fontconfig.h>
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	5 #include "mb_shapes.h"
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	6 #include "mb_tools.h"
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	7
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	8 #ifdef UNITTEST
425 09a66063b25d Fix issue of missed function for unittest. Thinker K.F. Li <thinker@branda.to> parents: 424 diff changeset	9
09a66063b25d Fix issue of missed function for unittest. Thinker K.F. Li <thinker@branda.to> parents: 424 diff changeset	10 #define UT_FAKE(r, x, param) \
09a66063b25d Fix issue of missed function for unittest. Thinker K.F. Li <thinker@branda.to> parents: 424 diff changeset	11 r x param {}
09a66063b25d Fix issue of missed function for unittest. Thinker K.F. Li <thinker@branda.to> parents: 424 diff changeset	12
09a66063b25d Fix issue of missed function for unittest. Thinker K.F. Li <thinker@branda.to> parents: 424 diff changeset	13 UT_FAKE(void, sh_stext_transform, (shape_t *shape));
09a66063b25d Fix issue of missed function for unittest. Thinker K.F. Li <thinker@branda.to> parents: 424 diff changeset	14 UT_FAKE(void, sh_stext_draw, (shape_t shape, cairo_t cr));
09a66063b25d Fix issue of missed function for unittest. Thinker K.F. Li <thinker@branda.to> parents: 424 diff changeset	15
424 585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	16 typedef struct _ut_area {
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	17 co_aix x, y;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	18 co_aix w, h;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	19 } ut_area_t;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	20 #define area_t ut_area_t
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	21
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	22 typedef struct _ut_shape {
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	23 co_aix aggr[6];
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	24 void (free)(struct _ut_shape );
424 585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	25 ut_area_t area;
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	26 } ut_shape_t;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	27 #define shape_t ut_shape_t
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	28
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	29 #undef sh_get_aggr_matrix
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	30 #define sh_get_aggr_matrix(sh) (sh)->aggr
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	31
424 585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	32 #undef sh_get_area
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	33 #define sh_get_area(sh) (&(sh)->area)
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	34
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	35 #undef mb_obj_init
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	36 #define mb_obj_init(o, t)
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	37 #undef rdman_shape_man
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	38 #define rdman_shape_man(rdman, sh)
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	39
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	40 #define rdman_shape_stext_new ut_rdman_shape_stext_new
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	41 #define sh_stext_transform ut_sh_stext_transform
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	42 #define sh_stext_draw ut_sh_stext_draw
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	43 #define sh_stext_set_text ut_sh_stext_set_text
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	44 #define sh_stext_set_style ut_sh_stext_set_style
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	45
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	46 #endif /* UNITTEST */
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	47
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	48 #ifndef ASSERT
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	49 #define ASSERT(x)
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	50 #endif
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	51 #define OK 0
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	52 #define ERR -1
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	53
407 92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	54 /*! \page stext Simple Text
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	55 *
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	56 * A sh_stext_t is broken into fragments. Each fragment comprises the text
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	57 * and the styles applied on the fragement. The styles determines font face
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	58 * used to show the text. The fragment of text with styles is called
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	59 * styled block.
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	60 */
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	61
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	62 /*! \defgroup fontconfig_freetype Fontconfig and FreeType Layer.
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	63 *
411 1633551e495d Add doc Thinker K.F. Li <thinker@branda.to> parents: 410 diff changeset	64 * This layer implements a font provider to rest of the system.
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	65 * It bases on fontconfig and FreeType supporting of Cairo.
411 1633551e495d Add doc Thinker K.F. Li <thinker@branda.to> parents: 410 diff changeset	66 * If you want to provide stext with technologies other than fontconfig and
1633551e495d Add doc Thinker K.F. Li <thinker@branda.to> parents: 410 diff changeset	67 * FreeType, just replace this layer with the implmenetation that you want.
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	68 *
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	69 * @{
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	70 */
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	71 /*! \brief Stakeholder of scaled font.
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	72 *
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	73 * It is actually a cairo_scaled_font_t, now. But, it should not be
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	74 * noticed by out-siders. Only \ref fontconfig_freetype
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	75 * should known it.
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	76 */
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	77 typedef struct _mb_scaled_font mb_scaled_font_t;
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	78
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	79 /*! \brief Stakeholder of scaled font.
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	80 *
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	81 * Although, mb_text_extents_t is defined as a cairo_scaled_font_t, but
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	82 * programmers should assume it is opague.
407 92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	83 *
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	84 * An extents is the span of showing a fragement of text on the output device.
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	85 * It includes x and y advance of cursor after showinng the text.
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	86 * The cursor maybe not really existed. But, the advance is computed as
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	87 * the cursor existed. It also includes width and height of the text.
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	88 * The bearing of a styled block is the left-top corner of the bounding box.
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	89 * The bounding box of a styled block is the minimal rectangle, on the
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	90 * output device, that can contain the text. The bearing is related to
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	91 * the base line for an extents.
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	92 */
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	93 typedef cairo_text_extents_t mb_text_extents_t;
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	94
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	95 #define MBE_GET_X_ADV(ext) ((ext)->x_advance)
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	96 #define MBE_GET_Y_ADV(ext) ((ext)->y_advance)
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	97 #define MBE_GET_X_BEARING(ext) ((ext)->x_bearing)
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	98 #define MBE_GET_Y_BEARING(ext) ((ext)->y_bearing)
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	99 #define MBE_GET_WIDTH(ext) ((ext)->width)
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	100 #define MBE_GET_HEIGHT(ext) ((ext)->height)
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	101 #define MBE_SET_X_ADV(ext, v) do { ((ext)->x_advance) = v; } while(0)
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	102 #define MBE_SET_Y_ADV(ext, v) do { ((ext)->y_advance) = v; } while(0)
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	103 #define MBE_SET_X_BEARING(ext, v) do { ((ext)->x_bearing) = v; } while(0)
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	104 #define MBE_SET_Y_BEARING(ext, v) do { ((ext)->y_bearing) = v; } while(0)
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	105 #define MBE_SET_WIDTH(ext, v) do { ((ext)->width) = v; } while(0)
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	106 #define MBE_SET_HEIGHT(ext, v) do { ((ext)->height) = v; } while(0)
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	107
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	108 /*! \brief Find out a font pattern.
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	109 *
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	110 * This function use fontconfig to decide a font file in pattern. It can
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	111 * replaced by other mechanism if you think it is not what you want.
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	112 *
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	113 * \param slant make font prune if it it non-zero.
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	114 * \param weight make font normal if it is 100.
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	115 */
394 b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	116 static
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	117 FcPattern query_font_pattern(const char family, int slant, int weight) {
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	118 FcPattern ptn, p, *fn_ptn;
394 b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	119 FcValue val;
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	120 FcConfig *cfg;
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	121 FcBool r;
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	122 FcResult result;
394 b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	123 static int slant_map[] = { /* from MB_FONT_SLANT_* to FC_SLANT_* */
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	124 FC_SLANT_ROMAN,
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	125 FC_SLANT_ROMAN,
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	126 FC_SLANT_ITALIC,
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	127 FC_SLANT_OBLIQUE};
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	128
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	129 cfg = FcConfigGetCurrent();
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	130 ptn = FcPatternCreate();
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	131 p = FcPatternCreate();
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	132 if(ptn == NULL \|\| p == NULL)
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	133 goto err;
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	134
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	135 val.type = FcTypeString;
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	136 val.u.s = family;
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	137 FcPatternAdd(ptn, "family", val, FcTrue);
394 b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	138
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	139 val.type = FcTypeInteger;
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	140 val.u.i = slant_map[slant];
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	141 FcPatternAdd(ptn, "slant", val, FcTrue);
394 b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	142
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	143 val.type = FcTypeInteger;
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	144 val.u.i = weight;
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	145 FcPatternAdd(ptn, "weight", val, FcTrue);
394 b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	146
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	147 r = FcConfigSubstituteWithPat(cfg, ptn, NULL, FcMatchPattern);
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	148 if(!r)
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	149 goto err;
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	150
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	151 r = FcConfigSubstituteWithPat(cfg, p, ptn, FcMatchFont);
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	152 if(!r)
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	153 goto err;
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	154
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	155 FcDefaultSubstitute(p);
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	156
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	157 fn_ptn = FcFontMatch(cfg, p, &result);
394 b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	158
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	159 /* It is supposed to return FcResultMatch. But, it is no, now.
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	160 * I don't know why. Someone should figure out the issue.
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	161 */
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	162 #if 0
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	163 if(result != FcResultMatch) {
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	164 printf("%d %d\n", result, FcResultMatch);
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	165 goto err;
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	166 }
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	167 #endif
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	168 if(fn_ptn == NULL)
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	169 goto err;
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	170
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	171 FcPatternDestroy(ptn);
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	172 FcPatternDestroy(p);
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	173
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	174 return fn_ptn;
394 b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	175
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	176 err:
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	177 if(ptn)
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	178 FcPatternDestroy(ptn);
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	179 if(p)
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	180 FcPatternDestroy(p);
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	181 return NULL;
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	182
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	183 }
b3d5ce48670a Use fontconfig to find out a font for a family/slant/weight pattern Thinker K.F. Li <thinker@branda.to> parents: 393 diff changeset	184
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	185 /*! \brief Find out a font face for a pattern specified.
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	186 *
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	187 * The pattern, here, is a vector of family, slant, and weight.
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	188 * This function base on fontconfig and cairo FreeType font supporting.
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	189 * You can replace this function with other font mechanisms.
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	190 */
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	191 static
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	192 mb_font_face_t query_font_face(const char family, int slant, int weight) {
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	193 cairo_font_face_t *cface;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	194 FcPattern *ptn;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	195
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	196 ptn = query_font_pattern(family, slant, weight);
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	197 cface = cairo_ft_font_face_create_for_pattern(ptn);
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	198 FcPatternDestroy(ptn);
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	199
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	200 return (mb_font_face_t *)cface;
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	201 }
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	202
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	203 static
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	204 void free_font_face(mb_font_face_t *face) {
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	205 ASSERT(face == NULL);
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	206
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	207 cairo_font_face_destroy((cairo_font_face_t *)face);
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	208 }
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	209
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	210 /*! \brief This is scaled font for specified size and extent.
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	211 *
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	212 * Font face only specified which font would be used to draw text
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	213 * message. But, it also need to scale glyphs to specified size and
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	214 * rotation. This function return a scaled font specified by a
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	215 * matrix that transform glyph from design space of the font to
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	216 * user space of cairo surface.
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	217 */
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	218 static
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	219 mb_scaled_font_t make_scaled_font_face_matrix(mb_font_face_t face,
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	220 co_aix *matrix) {
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	221 cairo_scaled_font_t *scaled_font;
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	222 cairo_matrix_t font_matrix;
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	223 static cairo_matrix_t id = {
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	224 1, 0,
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	225 0, 1,
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	226 0, 0
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	227 };
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	228 static cairo_font_options_t *opt = NULL;
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	229
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	230 ASSERT(matrix != NULL);
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	231
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	232 if(opt == NULL) {
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	233 opt = cairo_font_options_create();
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	234 if(opt == NULL)
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	235 return NULL;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	236 }
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	237
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	238 font_matrix.xx = *matrix++;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	239 font_matrix.xy = *matrix++;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	240 font_matrix.x0 = *matrix++;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	241 font_matrix.yx = *matrix++;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	242 font_matrix.yy = *matrix++;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	243 font_matrix.y0 = *matrix;
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	244 scaled_font = cairo_scaled_font_create((cairo_font_face_t *)face,
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	245 &font_matrix,
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	246 &id, opt);
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	247
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	248 return (mb_scaled_font_t *)scaled_font;
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	249 }
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	250
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	251 static
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	252 void scaled_font_free(mb_scaled_font_t *scaled_font) {
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	253 cairo_scaled_font_destroy((cairo_scaled_font_t *)scaled_font);
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	254 }
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	255
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	256 static
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	257 void compute_text_extents(mb_scaled_font_t scaled_font, const char txt,
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	258 mb_text_extents_t *extents) {
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	259 cairo_scaled_font_text_extents((cairo_scaled_font_t *)scaled_font,
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	260 txt,
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	261 (cairo_text_extents_t *)extents);
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	262 }
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	263
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	264 static
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	265 mb_text_extents_t *mb_text_extents_new(void) {
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	266 cairo_text_extents_t *extents;
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	267
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	268 extents = (cairo_text_extents_t *)malloc(sizeof(cairo_text_extents_t));
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	269 return extents;
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	270 }
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	271
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	272 static
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	273 void mb_text_extents_free(mb_text_extents_t *extents) {
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	274 free(extents);
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	275 }
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	276
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	277 /* @} */
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	278
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	279 /*! \brief Query and return a font face for a specified attribute vector.
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	280 *
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	281 * Programmers use mb_font_face_t to specify fonts used to show a
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	282 * block of text on the output device. They can get mb_font_face_t with
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	283 * this function. The objects return by mb_font_face_query() should be
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	284 * freed with mb_font_face_free() when they are not more used.
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	285 *
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	286 * \param family is the name of a font family (times).
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	287 * \param slant is one of \ref MB_FONT_SLANTS.
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	288 * \param weight decides if a font is thin or heavy.
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	289 */
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	290 mb_font_face_t mb_font_face_query(redraw_man_t rdman,
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	291 const char *family,
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	292 int slant,
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	293 int weight) {
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	294 return query_font_face(family, slant, weight);
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	295 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	296
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	297 void mb_font_face_free(mb_font_face_t *face) {
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	298 ASSERT(face != NULL);
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	299 free_font_face(face);
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	300 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	301
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	302 DARRAY(scaled_fonts_lst, mb_scaled_font_t *);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	303 DARRAY_DEFINE(scaled_fonts_lst, mb_scaled_font_t *);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	304 DARRAY(style_blks_lst, mb_style_blk_t);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	305 DARRAY_DEFINE_ADV(style_blks_lst, mb_style_blk_t);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	306
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	307 /*! \brief A simple implementation of text shape.
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	308 *
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	309 */
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	310 typedef struct _sh_stext {
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	311 shape_t shape;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	312 const char txt; /!< \brief Text to be showed */
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	313 style_blks_lst_t style_blks;
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	314 co_aix x, y;
424 585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	315 co_aix dx, dy;
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	316 scaled_fonts_lst_t scaled_fonts;
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	317 mb_text_extents_t extents;
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	318 } sh_stext_t;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	319
419 7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	320 static
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	321 void _rdman_shape_stext_free(shape_t *shape) {
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	322 sh_stext_t txt_o = (sh_stext_t )shape;
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	323 int i;
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	324
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	325 DARRAY_DESTROY(&txt_o->style_blks);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	326
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	327 for(i = 0; i < txt_o->scaled_fonts.num; i++)
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	328 scaled_font_free(txt_o->scaled_fonts.ds[i]);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	329 DARRAY_DESTROY(&txt_o->scaled_fonts);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	330
419 7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	331 if(txt_o->txt)
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	332 free((void *)txt_o->txt);
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	333
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	334 free(txt_o);
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	335 }
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	336
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	337 shape_t rdman_shape_stext_new(redraw_man_t rdman, co_aix x, co_aix y,
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	338 const char *txt) {
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	339 sh_stext_t *txt_o;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	340
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	341 ASSERT(txt != NULL);
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	342
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	343 txt_o = (sh_stext_t *)malloc(sizeof(sh_stext_t));
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	344 if(txt_o == NULL)
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	345 return NULL;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	346
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	347 memset(&txt_o->shape, 0, sizeof(shape_t));
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	348 mb_obj_init(txt_o, MBO_STEXT);
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	349
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	350 txt_o->txt = strdup(txt);
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	351 DARRAY_INIT(&txt_o->style_blks);
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	352 txt_o->x = x;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	353 txt_o->y = y;
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	354 DARRAY_INIT(&txt_o->scaled_fonts);
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	355
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	356 if(txt_o->txt == NULL) {
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	357 free(txt_o);
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	358 txt_o = NULL;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	359 }
419 7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	360
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	361 txt_o->shape.free = _rdman_shape_stext_free;
418 af6adacbed07 Make sh_stext object managed by rdman. Thinker K.F. Li <thinker@branda.to> parents: 417 diff changeset	362
af6adacbed07 Make sh_stext object managed by rdman. Thinker K.F. Li <thinker@branda.to> parents: 417 diff changeset	363 rdman_shape_man(rdman, (shape_t *)txt_o);
af6adacbed07 Make sh_stext object managed by rdman. Thinker K.F. Li <thinker@branda.to> parents: 417 diff changeset	364
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	365 return (shape_t *)txt_o;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	366 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	367
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	368 static
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	369 int compute_utf8_chars_sz(const char *txt, int n_chars) {
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	370 int i;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	371 const char *p = txt;
415 fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	372 const char *v;
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	373
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	374 for(i = 0; i < n_chars && *p; i++) {
415 fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	375 if(!(p & 0x80)) / single byte */
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	376 p++;
415 fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	377 else if((p & 0xe0) == 0xc0) / 2 bytes */
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	378 p += 2;
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	379 else if((p & 0xf0) == 0xe0) / 3 bytes */
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	380 p += 3;
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	381 else if((p & 0xf8) == 0xf0) / 4 bytes */
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	382 p += 4;
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	383 else
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	384 return ERR;
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	385 }
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	386 if(i < n_chars)
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	387 return ERR;
415 fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	388
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	389 for(v = txt; v != p; v++)
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	390 if(*v == '\x0')
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	391 return ERR;
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	392
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	393 return p - txt;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	394 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	395
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	396 static
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	397 mb_scaled_font_t make_scaled_font_face(sh_stext_t txt_o,
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	398 mb_font_face_t *face,
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	399 co_aix shift_x, co_aix shift_y,
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	400 co_aix font_sz) {
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	401 co_aix matrix[6], scaled_matrix[6];
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	402 co_aix *aggr;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	403 mb_scaled_font_t *scaled;
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	404
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	405 aggr = sh_get_aggr_matrix((shape_t *)txt_o);
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	406 matrix[0] = font_sz;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	407 matrix[1] = 0;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	408 matrix[2] = shift_x;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	409 matrix[3] = 0;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	410 matrix[4] = font_sz;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	411 matrix[5] += shift_y;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	412 matrix_mul(aggr, matrix, scaled_matrix);
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	413
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	414 scaled = make_scaled_font_face_matrix(face, scaled_matrix);
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	415
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	416 return scaled;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	417 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	418
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	419 /*! \brief Extend an extents from another sub-extents.
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	420 *
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	421 * A styled text is styled by several styled blocks, so extents of
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	422 * blocks should be computed separated, collected, and aggreagated
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	423 * into a full extents.
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	424 */
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	425 static
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	426 void extent_extents(mb_text_extents_t full, mb_text_extents_t sub) {
407 92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	427 co_aix f_rbx, f_rby; /* rb stands for right button */
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	428 co_aix s_rbx, s_rby;
414 bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	429 co_aix s_xbr, s_ybr;
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	430 co_aix new_x_adv, new_y_adv;
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	431
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	432 f_rbx = MBE_GET_X_BEARING(full) + MBE_GET_WIDTH(full);
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	433 f_rby = MBE_GET_Y_BEARING(full) + MBE_GET_HEIGHT(full);
414 bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	434 s_xbr = MBE_GET_X_BEARING(sub) + MBE_GET_X_ADV(full);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	435 s_ybr = MBE_GET_Y_BEARING(sub) + MBE_GET_Y_ADV(full);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	436 s_rbx = s_xbr + MBE_GET_WIDTH(sub);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	437 s_rby = s_ybr + MBE_GET_HEIGHT(sub);
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	438
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	439 /* set bearing */
414 bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	440 if(MBE_GET_X_BEARING(full) > s_xbr)
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	441 MBE_SET_X_BEARING(full, s_xbr);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	442 if(MBE_GET_Y_BEARING(full) > s_ybr)
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	443 MBE_SET_Y_BEARING(full, s_ybr);
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	444
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	445 /* set width/height */
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	446 if(f_rbx < s_rbx)
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	447 MBE_SET_WIDTH(full, s_rbx - MBE_GET_X_BEARING(full));
414 bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	448 else
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	449 MBE_SET_WIDTH(full, f_rbx - MBE_GET_X_BEARING(full));
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	450 if(f_rby < s_rby)
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	451 MBE_SET_HEIGHT(full, s_rby - MBE_GET_Y_BEARING(full));
414 bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	452 else
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	453 MBE_SET_HEIGHT(full, f_rby - MBE_GET_Y_BEARING(full));
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	454
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	455 /* set x/y advance */
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	456 new_x_adv = MBE_GET_X_ADV(full) + MBE_GET_X_ADV(sub);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	457 new_y_adv = MBE_GET_Y_ADV(full) + MBE_GET_Y_ADV(sub);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	458 MBE_SET_X_ADV(full, new_x_adv);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	459 MBE_SET_Y_ADV(full, new_y_adv);
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	460 }
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	461
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	462 /*! \brief Compute extents of a stext object according style blocks.
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	463 *
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	464 * It create scaled fonts for style blocks, compute their extents,
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	465 * and compute where they should be draw acoording advance of style
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	466 * blocks before a style block.
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	467 *
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	468 * The scaled font that is created by this function for style blocks
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	469 * are drawed at origin. So, extents of these blocks are also based
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	470 * on that the text are drawed at origin of user space. But,
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	471 * aggreagated extents (sh_stext_t::extents) accounts x/y advances
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	472 * to create correct extents for full text string with style blocks.
424 585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	473 *
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	474 * This function assumes texts are always drawed at 0, 0. So,
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	475 * transform function should adjust x and y bearing corresponding
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	476 * x, y of text to compute area.
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	477 */
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	478 static
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	479 void compute_styled_extents_n_scaled_font(sh_stext_t *txt_o) {
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	480 mb_text_extents_t sub_extents;
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	481 mb_style_blk_t *blk;
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	482 style_blks_lst_t *style_blks;
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	483 int blk_txt_len;
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	484 mb_scaled_font_t *scaled;
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	485 scaled_fonts_lst_t *scaled_fonts;
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	486 char *txt, saved;
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	487 int i, nscaled;
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	488
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	489 memset(&txt_o->extents, sizeof(mb_text_extents_t), 0);
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	490
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	491 scaled_fonts = &txt_o->scaled_fonts;
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	492 for(i = 0; i < scaled_fonts->num; i++)
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	493 scaled_font_free(scaled_fonts->ds[i]);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	494 DARRAY_CLEAN(scaled_fonts);
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	495
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	496 style_blks = &txt_o->style_blks;
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	497 blk = style_blks->ds;
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	498
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	499 txt = (char *)txt_o->txt;
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	500 for(i = 0; i < style_blks->num; i++) {
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	501 scaled = make_scaled_font_face(txt_o, blk->face,
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	502 0, 0, blk->font_sz);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	503 ASSERT(scaled != NULL);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	504 scaled_fonts_lst_add(scaled_fonts, scaled);
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	505
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	506 blk_txt_len = compute_utf8_chars_sz(txt, blk->n_chars);
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	507 ASSERT(blk_txt_len != ERR);
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	508
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	509 saved = txt[blk_txt_len];
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	510 txt[blk_txt_len] = 0;
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	511 compute_text_extents(scaled, txt, &sub_extents);
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	512 txt[blk_txt_len] = saved;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	513
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	514 extent_extents(&txt_o->extents, &sub_extents);
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	515
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	516 blk++;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	517 txt += blk_txt_len;
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	518 }
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	519 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	520
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	521 /*
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	522 * What we have to do in sh_stext_transform() is
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	523 * - computing bounding box for the text,
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	524 * - computing offset x,y for the text of style blocks,
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	525 * - free old scaled fonts, and
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	526 * - making scaled fonts for style blocks.
424 585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	527 *
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	528 * Extents of style blocks are computed with x,y at 0,0.
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	529 * So, we should add x,y, after transforming by the aggreagated matrix,
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	530 * to output area.
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	531 */
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	532 void sh_stext_transform(shape_t *shape) {
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	533 sh_stext_t txt_o = (sh_stext_t )shape;
424 585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	534 area_t *area;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	535 mb_text_extents_t *ext;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	536 co_aix *aggr;
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	537
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	538 ASSERT(txt_o != NULL);
424 585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	539
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	540 aggr = sh_get_aggr_matrix(shape);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	541
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	542 txt_o->dx = txt_o->x;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	543 txt_o->dy = txt_o->y;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	544 matrix_trans_pos(aggr, &txt_o->dx, &txt_o->dy);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	545
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	546 compute_styled_extents_n_scaled_font(txt_o);
424 585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	547 ext = &txt_o->extents;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	548
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	549 area = sh_get_area(shape);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	550 area->x = MBE_GET_X_BEARING(ext) + txt_o->dx;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	551 area->y = MBE_GET_Y_BEARING(ext) + txt_o->dy;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	552 area->w = MBE_GET_WIDTH(ext);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	553 area->h = MBE_GET_HEIGHT(ext);
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	554 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	555
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	556 void sh_stext_draw(shape_t shape, cairo_t cr) {
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	557 sh_stext_t txt_o = (sh_stext_t )shape;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	558
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	559 ASSERT(txt_o != NULL);
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	560 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	561
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	562 int sh_stext_set_text(shape_t shape, const char txt) {
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	563 sh_stext_t txt_o = (sh_stext_t )shape;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	564 char *new_txt;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	565 int sz;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	566
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	567 ASSERT(txt_o != NULL);
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	568 ASSERT(txt != NULL);
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	569
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	570 sz = strlen(txt) + 1;
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	571 new_txt = (char )realloc((void )txt_o->txt, sz);
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	572 if(new_txt == NULL)
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	573 return ERR;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	574
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	575 memcpy(new_txt, txt, sz);
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	576 txt_o->txt = new_txt;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	577
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	578 return OK;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	579 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	580
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	581 int sh_stext_set_style(shape_t *shape,
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	582 const mb_style_blk_t *blks,
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	583 int nblks) {
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	584 sh_stext_t txt_o = (sh_stext_t )shape;
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	585 style_blks_lst_t *style_blks;
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	586 mb_style_blk_t *new_blks;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	587 int sz;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	588
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	589 ASSERT(txt_o != NULL);
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	590 ASSERT(nblks >= 0);
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	591
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	592 style_blks = &txt_o->style_blks;
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	593 DARRAY_CLEAN(style_blks);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	594 style_blks_lst_adv(style_blks, nblks);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	595
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	596 memcpy(style_blks->ds,
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	597 blks, nblks * sizeof(mb_style_blk_t));
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	598
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	599 return OK;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	600 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	601
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	602 #ifdef UNITTEST
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	603
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	604 #include <CUnit/Basic.h>
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	605
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	606 static
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	607 void test_query_font_face(void) {
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	608 mb_font_face_t *face;
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	609 cairo_status_t status;
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	610
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	611 face = query_font_face("serif", MB_FONT_SLANT_ROMAN, 100);
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	612 CU_ASSERT(face != NULL);
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	613 status = cairo_font_face_status((cairo_font_face_t *)face);
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	614 CU_ASSERT(status == CAIRO_STATUS_SUCCESS);
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	615
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	616 free_font_face(face);
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	617 }
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	618
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	619 static
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	620 void test_make_scaled_font_face_matrix(void) {
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	621 co_aix matrix[6] = {5, 0, 0, 0, 5, 0};
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	622 mb_font_face_t *face;
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	623 mb_scaled_font_t *scaled;
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	624 cairo_status_t status;
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	625
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	626 face = query_font_face("serif", MB_FONT_SLANT_ROMAN, 100);
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	627 CU_ASSERT(face != NULL);
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	628 status = cairo_font_face_status((cairo_font_face_t *)face);
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	629 CU_ASSERT(status == CAIRO_STATUS_SUCCESS);
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	630
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	631 scaled = make_scaled_font_face_matrix(face, matrix);
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	632 CU_ASSERT(scaled != NULL);
420 485c563514f4 Casting pointer to cease warning messages. Thinker K.F. Li <thinker@branda.to> parents: 419 diff changeset	633 status = cairo_scaled_font_status((cairo_scaled_font_t *)scaled);
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	634 CU_ASSERT(status == CAIRO_STATUS_SUCCESS);
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	635
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	636 scaled_font_free(scaled);
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	637 free_font_face(face);
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	638 }
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	639
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	640 static
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	641 void test_compute_text_extents(void) {
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	642 co_aix matrix[6] = {10, 0, 0, 0, 10, 0};
423 3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	643 co_aix x_adv1, x_adv2;
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	644 co_aix x_bearing1, x_bearing2;
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	645 mb_font_face_t *face;
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	646 mb_scaled_font_t *scaled;
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	647 mb_text_extents_t ext;
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	648
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	649 face = query_font_face("serif", MB_FONT_SLANT_ROMAN, 100);
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	650 CU_ASSERT(face != NULL)
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	651 scaled = make_scaled_font_face_matrix(face, matrix);
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	652 CU_ASSERT(scaled != NULL);
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	653
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	654 compute_text_extents(scaled, "test", &ext);
414 bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	655 CU_ASSERT(MBE_GET_HEIGHT(&ext) >= 5 && MBE_GET_HEIGHT(&ext) <= 12);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	656 CU_ASSERT(MBE_GET_WIDTH(&ext) >= 16 && MBE_GET_WIDTH(&ext) <= 48);
423 3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	657 x_adv1 = MBE_GET_X_ADV(&ext);
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	658 x_bearing1 = MBE_GET_X_BEARING(&ext);
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	659 scaled_font_free(scaled);
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	660
423 3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	661 matrix[2] = 5;
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	662 scaled = make_scaled_font_face_matrix(face, matrix);
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	663 CU_ASSERT(scaled != NULL);
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	664
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	665 compute_text_extents(scaled, "test", &ext);
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	666 CU_ASSERT(MBE_GET_HEIGHT(&ext) >= 5 && MBE_GET_HEIGHT(&ext) <= 12);
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	667 CU_ASSERT(MBE_GET_WIDTH(&ext) >= 16 && MBE_GET_WIDTH(&ext) <= 48);
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	668 x_adv2 = MBE_GET_X_ADV(&ext);
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	669 x_bearing2 = MBE_GET_X_BEARING(&ext);
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	670 scaled_font_free(scaled);
423 3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	671
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	672 CU_ASSERT(x_adv1 == x_adv2);
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	673 CU_ASSERT((x_bearing1 + 5) == x_bearing2);
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	674
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	675 free_font_face(face);
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	676 }
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	677
414 bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	678 static
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	679 void test_extent_extents(void) {
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	680 mb_text_extents_t ext1, ext2;
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	681
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	682 MBE_SET_WIDTH(&ext1, 20);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	683 MBE_SET_HEIGHT(&ext1, 10);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	684 MBE_SET_X_BEARING(&ext1, 1);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	685 MBE_SET_Y_BEARING(&ext1, -8);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	686 MBE_SET_X_ADV(&ext1, 21);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	687 MBE_SET_Y_ADV(&ext1, -3);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	688
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	689 MBE_SET_WIDTH(&ext2, 30);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	690 MBE_SET_HEIGHT(&ext2, 11);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	691 MBE_SET_X_BEARING(&ext2, 2);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	692 MBE_SET_Y_BEARING(&ext2, -11);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	693 MBE_SET_X_ADV(&ext2, 32);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	694 MBE_SET_Y_ADV(&ext2, -5);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	695
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	696 extent_extents(&ext1, &ext2);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	697
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	698 CU_ASSERT(MBE_GET_WIDTH(&ext1) == 52);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	699 CU_ASSERT(MBE_GET_HEIGHT(&ext1) == 16);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	700 CU_ASSERT(MBE_GET_X_BEARING(&ext1) == 1);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	701 CU_ASSERT(MBE_GET_Y_BEARING(&ext1) == -14);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	702 CU_ASSERT(MBE_GET_X_ADV(&ext1) == 53);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	703 CU_ASSERT(MBE_GET_Y_ADV(&ext1) == -8);
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	704 }
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	705
415 fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	706 static
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	707 void test_compute_utf8_chars_sz(void) {
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	708 const char *str = "\xe4\xb8\xad\xe6\x96\x87test\xe6\xb8\xac\xe8\xa9\xa6";
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	709 int sz;
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	710
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	711 sz = compute_utf8_chars_sz(str, 4);
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	712 CU_ASSERT(sz == 8);
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	713
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	714 sz = compute_utf8_chars_sz(str, 9);
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	715 CU_ASSERT(sz == ERR);
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	716 }
fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	717
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	718 static
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	719 void test_compute_styled_extents_n_scaled_font(void) {
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	720 sh_stext_t *txt_o;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	721 co_aix *aggr;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	722 mb_style_blk_t blks[2];
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	723 mb_font_face_t *face;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	724 mb_text_extents_t *ext;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	725 int r;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	726
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	727 txt_o = (sh_stext_t )rdman_shape_stext_new((redraw_man_t )NULL,
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	728 10, 15, "Hello World");
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	729 CU_ASSERT(txt_o != NULL);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	730
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	731 aggr = txt_o->shape.aggr;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	732 aggr[0] = 1;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	733 aggr[1] = 0;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	734 aggr[2] = 0;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	735 aggr[3] = 0;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	736 aggr[4] = 1;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	737 aggr[5] = 0;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	738
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	739 face = query_font_face("serif", MB_FONT_SLANT_ROMAN, 100);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	740 CU_ASSERT(face != NULL);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	741
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	742 blks[0].n_chars = 5;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	743 blks[0].face = face;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	744 blks[0].font_sz = 10;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	745
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	746 blks[1].n_chars = 4;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	747 blks[1].face = face;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	748 blks[1].font_sz = 15.5;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	749
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	750 r = sh_stext_set_style((shape_t *)txt_o, blks, 2);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	751 CU_ASSERT(r == OK);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	752
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	753 compute_styled_extents_n_scaled_font(txt_o);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	754
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	755 ext = &txt_o->extents;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	756 CU_ASSERT(MBE_GET_HEIGHT(ext) > 11);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	757 CU_ASSERT(MBE_GET_HEIGHT(ext) < 20);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	758 CU_ASSERT(MBE_GET_WIDTH(ext) > 36);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	759 CU_ASSERT(MBE_GET_WIDTH(ext) < 72);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	760 CU_ASSERT(MBE_GET_X_ADV(ext) > 36);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	761 CU_ASSERT(MBE_GET_X_ADV(ext) < 72);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	762 CU_ASSERT(MBE_GET_Y_ADV(ext) == 0);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	763
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	764 _rdman_shape_stext_free((shape_t *)txt_o);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	765 free_font_face(face);
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	766 }
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	767
424 585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	768 static
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	769 void test_sh_stext_transform(void) {
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	770 sh_stext_t *txt_o;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	771 mb_style_blk_t blks[2];
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	772 co_aix *aggr;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	773 mb_font_face_t *face;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	774 area_t *area;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	775 int r;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	776
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	777 txt_o = (sh_stext_t *)rdman_shape_stext_new(NULL, 100, 50, "hello world");
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	778 CU_ASSERT(txt_o != NULL);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	779
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	780 aggr = txt_o->shape.aggr;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	781 aggr[0] = 2;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	782 aggr[1] = 0;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	783 aggr[2] = 0;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	784 aggr[3] = 0;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	785 aggr[4] = 1;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	786 aggr[5] = 0;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	787
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	788 face = query_font_face("serif", MB_FONT_SLANT_ROMAN, 100);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	789 CU_ASSERT(face != NULL);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	790
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	791 blks[0].n_chars = 5;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	792 blks[0].face = face;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	793 blks[0].font_sz = 10;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	794
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	795 blks[1].n_chars = 4;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	796 blks[1].face = face;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	797 blks[1].font_sz = 15.5;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	798
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	799 r = sh_stext_set_style((shape_t *)txt_o, blks, 2);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	800 CU_ASSERT(r == OK);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	801
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	802 sh_stext_transform((shape_t *)txt_o);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	803
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	804 area = sh_get_area((shape_t *)txt_o);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	805 CU_ASSERT(area->x >= 200 && area->x < 220);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	806 CU_ASSERT(area->y >= 40 && area->y < 50);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	807 CU_ASSERT(area->w >= 80 && area->w < 120);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	808 CU_ASSERT(area->h >= 8 && area->h < 12);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	809
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	810 _rdman_shape_stext_free((shape_t *)txt_o);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	811 free_font_face(face);
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	812 }
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	813
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	814 #include <CUnit/Basic.h>
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	815 CU_pSuite get_stext_suite(void) {
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	816 CU_pSuite suite;
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	817
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	818 suite = CU_add_suite("Suite_stext", NULL, NULL);
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	819 CU_ADD_TEST(suite, test_query_font_face);
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	820 CU_ADD_TEST(suite, test_make_scaled_font_face_matrix);
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	821 CU_ADD_TEST(suite, test_compute_text_extents);
414 bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	822 CU_ADD_TEST(suite, test_extent_extents);
415 fef1b8076041 Make compute_utf8_chars_sz to compute length of n UTF 8 characters correctly. Thinker K.F. Li <thinker@branda.to> parents: 414 diff changeset	823 CU_ADD_TEST(suite, test_compute_utf8_chars_sz);
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	824 CU_ADD_TEST(suite, test_compute_styled_extents_n_scaled_font);
424 585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	825 CU_ADD_TEST(suite, test_sh_stext_transform);
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	826
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	827 return suite;
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	828 }
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	829
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	830 #endif /* UNITTEST */

Mercurial > MadButterfly

annotate src/shape_stext.c @ 425:09a66063b25d