MadButterfly: src/shape_stext.c annotate

annotate src/shape_stext.c @ 424:585baa462778

Make sh_stext_transform() pass first test case for him.

author	Thinker K.F. Li <thinker@branda.to>
date	Tue, 28 Jul 2009 15:11:42 +0800
parents	3ba48126c49c
children	09a66063b25d

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
424 585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	9 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	10 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	11 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	12 } 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	13 #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	14
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	15 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	16 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	17 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	18 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	19 } 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	20 #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	21
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	22 #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	23 #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	24
424 585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	25 #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	26 #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	27
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	28 #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	29 #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	30 #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	31 #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	32
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	33 #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	34 #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	35 #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	36 #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	37 #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	38
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	39 #endif /* UNITTEST */
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	40
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	41 #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	42 #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	43 #endif
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	44 #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	45 #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	46
407 92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	47 /*! \page stext Simple Text
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	48 *
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	49 * 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	50 * 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	51 * 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	52 * styled block.
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	53 */
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	54
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	55 /*! \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	56 *
411 1633551e495d Add doc Thinker K.F. Li <thinker@branda.to> parents: 410 diff changeset	57 * 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	58 * It bases on fontconfig and FreeType supporting of Cairo.
411 1633551e495d Add doc Thinker K.F. Li <thinker@branda.to> parents: 410 diff changeset	59 * 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	60 * 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	61 *
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	62 * @{
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	63 */
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	64 /*! \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	65 *
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	66 * 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	67 * 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	68 * should known it.
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 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	71
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	72 /*! \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	73 *
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	74 * 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	75 * programmers should assume it is opague.
407 92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	76 *
92a459a1c5aa more comment Thinker K.F. Li <thinker@branda.to> parents: 403 diff changeset	77 * 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	78 * 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	79 * 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	80 * 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	81 * 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	82 * 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	83 * 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	84 * 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	85 */
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	86 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	87
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	88 #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	89 #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	90 #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	91 #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	92 #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	93 #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	94 #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	95 #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	96 #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	97 #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	98 #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	99 #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	100
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	101 /*! \brief Find out a font pattern.
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	102 *
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	103 * 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	104 * 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	105 *
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	106 * \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	107 * \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	108 */
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	109 static
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	110 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	111 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	112 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	113 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	114 FcBool r;
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	115 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	116 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	117 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	118 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	119 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	120 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	121
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	122 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	123 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	124 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	125 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	126 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	127
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 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	129 val.u.s = family;
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	130 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	131
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 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	133 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	134 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	135
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.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	137 val.u.i = weight;
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	138 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	139
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 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	141 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	142 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	143
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 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	145 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	146 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	147
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 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	149
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	150 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	151
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	152 /* 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	153 * 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	154 */
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	155 #if 0
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	156 if(result != FcResultMatch) {
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	157 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	158 goto err;
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	159 }
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	160 #endif
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	161 if(fn_ptn == NULL)
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	162 goto err;
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	163
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	164 FcPatternDestroy(ptn);
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	165 FcPatternDestroy(p);
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 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	168
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	169 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	170 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	171 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	172 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	173 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	174 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	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 }
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
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	178 /*! \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	179 *
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	180 * 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	181 * 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	182 * You can replace this function with other font mechanisms.
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	183 */
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	184 static
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	185 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	186 cairo_font_face_t *cface;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	187 FcPattern *ptn;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	188
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	189 ptn = query_font_pattern(family, slant, weight);
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	190 cface = cairo_ft_font_face_create_for_pattern(ptn);
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	191 FcPatternDestroy(ptn);
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	192
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	193 return (mb_font_face_t *)cface;
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	194 }
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 static
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	197 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	198 ASSERT(face == NULL);
395 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 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	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 /*! \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	204 *
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	205 * 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	206 * 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	207 * 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	208 * 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	209 * user space of cairo surface.
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	210 */
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	211 static
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	212 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	213 co_aix *matrix) {
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	214 cairo_scaled_font_t *scaled_font;
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	215 cairo_matrix_t font_matrix;
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	216 static cairo_matrix_t id = {
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	217 1, 0,
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	218 0, 1,
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	219 0, 0
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	220 };
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	221 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	222
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	223 ASSERT(matrix != NULL);
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	224
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	225 if(opt == NULL) {
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	226 opt = cairo_font_options_create();
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	227 if(opt == NULL)
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	228 return NULL;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	229 }
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	230
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	231 font_matrix.xx = *matrix++;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	232 font_matrix.xy = *matrix++;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	233 font_matrix.x0 = *matrix++;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	234 font_matrix.yx = *matrix++;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	235 font_matrix.yy = *matrix++;
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	236 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	237 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	238 &font_matrix,
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	239 &id, opt);
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	240
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	241 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	242 }
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	243
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	244 static
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	245 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	246 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	247 }
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	248
d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	249 static
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	250 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	251 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	252 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	253 txt,
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	254 (cairo_text_extents_t *)extents);
395 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
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	257 static
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	258 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	259 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	260
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	261 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	262 return extents;
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	263 }
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	264
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	265 static
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	266 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	267 free(extents);
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	268 }
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	269
7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	270 /* @} */
395 d30b575a4ad4 Add fontconfig layer Thinker K.F. Li <thinker@branda.to> parents: 394 diff changeset	271
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	272 /*! \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	273 *
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	274 * 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	275 * 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	276 * 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	277 * 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	278 *
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	279 * \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	280 * \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	281 * \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	282 */
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	283 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	284 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	285 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	286 int weight) {
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	287 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	288 }
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 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	291 ASSERT(face != NULL);
396 7fe0b1ee92b6 Add extents supporting into Fontconfig and FreeType Layer Thinker K.F. Li <thinker@branda.to> parents: 395 diff changeset	292 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	293 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	294
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	295 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	296 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	297 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	298 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	299
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 /*! \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	301 *
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	302 */
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	303 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	304 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	305 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	306 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	307 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	308 co_aix dx, dy;
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	309 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	310 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	311 } 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	312
419 7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	313 static
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	314 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	315 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	316 int i;
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	317
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	318 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	319
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	320 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	321 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	322 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	323
419 7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	324 if(txt_o->txt)
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	325 free((void *)txt_o->txt);
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	326
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	327 free(txt_o);
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	328 }
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	329
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	330 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	331 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	332 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	333
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	334 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	335
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	336 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	337 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	338 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	339
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	340 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	341 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	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->txt = strdup(txt);
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	344 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	345 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	346 txt_o->y = y;
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	347 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	348
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	349 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	350 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	351 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	352 }
419 7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	353
7c921fda21be Set free function for sh_stext. Thinker K.F. Li <thinker@branda.to> parents: 418 diff changeset	354 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	355
af6adacbed07 Make sh_stext object managed by rdman. Thinker K.F. Li <thinker@branda.to> parents: 417 diff changeset	356 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	357
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	358 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	359 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	360
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	361 static
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	362 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	363 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	364 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	365 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	366
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	367 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	368 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	369 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	370 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	371 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	372 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	373 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	374 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	375 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	376 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	377 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	378 }
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	379 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	380 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	381
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 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	383 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	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
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	386 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	387 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	388
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	389 static
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	390 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	391 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	392 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	393 co_aix font_sz) {
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	394 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	395 co_aix *aggr;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	396 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	397
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	398 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	399 matrix[0] = font_sz;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	400 matrix[1] = 0;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	401 matrix[2] = shift_x;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	402 matrix[3] = 0;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	403 matrix[4] = font_sz;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	404 matrix[5] += shift_y;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	405 matrix_mul(aggr, matrix, scaled_matrix);
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	406
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	407 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	408
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	409 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	410 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	411
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	412 /*! \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	413 *
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	414 * 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	415 * 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	416 * into a full extents.
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	417 */
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	418 static
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	419 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	420 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	421 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	422 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	423 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	424
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	425 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	426 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	427 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	428 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	429 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	430 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	431
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	432 /* 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	433 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	434 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	435 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	436 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	437
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	438 /* set width/height */
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	439 if(f_rbx < s_rbx)
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	440 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	441 else
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	442 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	443 if(f_rby < s_rby)
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	444 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	445 else
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	446 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	447
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	448 /* 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	449 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	450 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	451 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	452 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	453 }
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	454
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	455 /*! \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	456 *
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	457 * 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	458 * 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	459 * 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	460 *
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	461 * 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	462 * 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	463 * 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	464 * 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	465 * 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	466 *
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	467 * 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	468 * 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	469 * 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	470 */
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	471 static
aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	472 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	473 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	474 mb_style_blk_t *blk;
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	475 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	476 int blk_txt_len;
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	477 mb_scaled_font_t *scaled;
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	478 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	479 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	480 int i, nscaled;
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	481
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	482 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	483
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	484 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	485 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	486 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	487 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	488
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	489 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	490 blk = style_blks->ds;
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	491
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	492 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	493 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	494 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	495 0, 0, blk->font_sz);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	496 ASSERT(scaled != NULL);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	497 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	498
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	499 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	500 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	501
397 55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	502 saved = txt[blk_txt_len];
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	503 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	504 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	505 txt[blk_txt_len] = saved;
55f38c2cdb8f Refactor function of computing text extents Thinker K.F. Li <thinker@branda.to> parents: 396 diff changeset	506
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	507 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	508
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	509 blk++;
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	510 txt += blk_txt_len;
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	511 }
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	512 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	513
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	514 /*
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	515 * 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	516 * - 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	517 * - 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	518 * - 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	519 * - 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	520 *
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	521 * 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	522 * 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	523 * 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	524 */
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	525 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	526 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	527 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	528 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	529 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	530
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	531 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	532
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	533 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	534
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	535 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	536 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	537 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	538
403 aee0f66b1154 Compute extents of a styled text Thinker K.F. Li <thinker@branda.to> parents: 397 diff changeset	539 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	540 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	541
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	542 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	543 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	544 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	545 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	546 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	547 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	548
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	549 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	550 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	551
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	552 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	553 }
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 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	556 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	557 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	558 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	559
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	560 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	561 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	562
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	563 sz = strlen(txt) + 1;
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	564 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	565 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	566 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	567
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	568 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	569 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	570
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	571 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	572 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	573
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	574 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	575 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	576 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	577 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	578 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	579 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	580 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	581
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	582 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	583 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	584
422 c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	585 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	586 DARRAY_CLEAN(style_blks);
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	587 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	588
c6c0d017dc8e Use DARRAY to manage variable length list Thinker K.F. Li <thinker@branda.to> parents: 421 diff changeset	589 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	590 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	591
393 27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	592 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	593 }
27774b93521e Add sh_stext_t to implement a simple version of text shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	594
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	595 #ifdef UNITTEST
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	596
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	597 #include <CUnit/Basic.h>
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	598
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	599 static
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	600 void test_query_font_face(void) {
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	601 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	602 cairo_status_t status;
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	603
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	604 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	605 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	606 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	607 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	608
35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	609 free_font_face(face);
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	610 }
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	611
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	612 static
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	613 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	614 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	615 mb_font_face_t *face;
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	616 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	617 cairo_status_t status;
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	618
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	619 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	620 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	621 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	622 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	623
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	624 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	625 CU_ASSERT(scaled != NULL);
420 485c563514f4 Casting pointer to cease warning messages. Thinker K.F. Li <thinker@branda.to> parents: 419 diff changeset	626 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	627 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	628
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	629 scaled_font_free(scaled);
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	630 free_font_face(face);
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	631 }
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	632
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	633 static
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	634 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	635 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	636 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	637 co_aix x_bearing1, x_bearing2;
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	638 mb_font_face_t *face;
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	639 mb_scaled_font_t *scaled;
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	640 mb_text_extents_t ext;
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	641
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	642 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	643 CU_ASSERT(face != NULL)
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	644 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	645 CU_ASSERT(scaled != NULL);
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	646
a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	647 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	648 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	649 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	650 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	651 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	652 scaled_font_free(scaled);
412 a456e267279a Test cases for shape_stext. Thinker K.F. Li <thinker@branda.to> parents: 411 diff changeset	653
423 3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	654 matrix[2] = 5;
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	655 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	656 CU_ASSERT(scaled != NULL);
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	657
3ba48126c49c Check bearing and advance of text_extents. Thinker K.F. Li <thinker@branda.to> parents: 422 diff changeset	658 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	659 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	660 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	661 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	662 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	663 scaled_font_free(scaled);
423 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 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	666 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	667
413 35712e4bad0e Make shape_stext.c pass test cases. Thinker K.F. Li <thinker@branda.to> parents: 412 diff changeset	668 free_font_face(face);
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	669 }
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	670
414 bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	671 static
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	672 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	673 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	674
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	675 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	676 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	677 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	678 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	679 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	680 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	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(&ext2, 30);
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(&ext2, 11);
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(&ext2, 2);
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(&ext2, -11);
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(&ext2, 32);
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(&ext2, -5);
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 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	690
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	691 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	692 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	693 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	694 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	695 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	696 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	697 }
bbf036c315be Fix extent_extents to make it pass the test case. Thinker K.F. Li <thinker@branda.to> parents: 413 diff changeset	698
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	699 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	700 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	701 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	702 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	703
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	704 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	705 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	706
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 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	708 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	709 }
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
421 1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	711 static
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	712 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	713 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	714 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	715 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	716 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	717 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	718 int r;
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	719
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	720 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	721 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	722 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	723
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	724 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	725 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	726 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	727 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	728 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	729 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	730 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	731
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	732 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	733 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	734
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	735 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	736 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	737 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	738
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	739 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	740 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	741 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	742
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	743 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	744 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	745
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	746 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	747
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	748 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	749 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	750 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	751 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	752 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	753 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	754 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	755 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	756
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	757 _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	758 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	759 }
1e48453bb282 Make compute_styled_extents_n_scaled_font() pass the test. Thinker K.F. Li <thinker@branda.to> parents: 420 diff changeset	760
424 585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	761 static
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	762 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	763 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	764 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	765 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	766 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	767 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	768 int r;
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	769
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	770 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	771 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	772
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	773 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	774 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	775 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	776 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	777 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	778 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	779 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	780
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	781 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	782 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	783
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	784 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	785 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	786 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	787
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	788 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	789 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	790 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	791
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	792 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	793 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	794
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	795 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	796
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	797 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	798 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	799 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	800 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	801 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	802
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	803 _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	804 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	805 }
585baa462778 Make sh_stext_transform() pass first test case for him. Thinker K.F. Li <thinker@branda.to> parents: 423 diff changeset	806
410 1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	807 #include <CUnit/Basic.h>
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	808 CU_pSuite get_stext_suite(void) {
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	809 CU_pSuite suite;
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	810
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	811 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	812 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	813 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	814 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	815 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	816 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	817 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	818 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	819
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	820 return suite;
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	821 }
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	822
1a923ea699c1 shape_stext.c, now, is unittested. Thinker K.F. Li <thinker@branda.to> parents: 407 diff changeset	823 #endif /* UNITTEST */

Mercurial > MadButterfly

annotate src/shape_stext.c @ 424:585baa462778