MadButterfly: src/shape_image.c annotate

annotate src/shape_image.c @ 776:77b561bb7929

Implement new algorithm to calculate the origin of the SVG elemnts so that we can implement object resize without changing the position of the object. However, the image does not work here since it does not use the transformation of the group.

author	wycc
date	Mon, 30 Aug 2010 08:56:44 +0800
parents	cbad519226d4
children	61c217f8cec8

rev	line source
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	1 #include <stdio.h>
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	2 #include <string.h>
448 16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine. Thinker K.F. Li <thinker@branda.to> parents: 356 diff changeset	3 #include "mb_graph_engine.h"
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	4 #include "mb_types.h"
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	5 #include "mb_shapes.h"
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	6 #include "mb_img_ldr.h"
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	7 #include "mb_tools.h"
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	8
265 b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	9 /*! \page sh_image_n_image_ldr Image and Image Loader
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	10 *
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	11 * Image (\ref sh_image_t) is a shape to show an image on the output
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	12 * device. Programmers manipulate object of an image shape to show it
356 3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	13 * at specified position with specified size. For a sh_image_t, an
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	14 * image should be specified to fill the shape. Programmers must have
265 b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	15 * a way to load image from files. The solution proposed by MadButterfly
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	16 * is image loader (\ref mb_img_ldr_t).
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	17 *
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	18 * Image loader is a repository of image files, programmers give him an
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	19 * ID and get an image returned the loader. Image loader decodes image
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	20 * files specified IDs and return them in an internal representation.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	21 * The internal representation of an array of pixels. Pixels are in
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	22 * order of columns (X-axis) and then row by row (Y-axis). An pixel
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	23 * can be 32bits, for ARGB, 24bits, for RGB, 8bits, for 8bits Alpha or
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	24 * 256-grey-levels, and 1bits, for bitmap.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	25 *
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	26 * Every row is padded to round to byte boundary, a rounded row is a stride.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	27 * Bytes a stride occupied is stride size. The internal rpresentation
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	28 * is a series of strides. The data returned by image loader is
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	29 * \ref mb_img_data_t type. mb_img_data_t::content is data in internal
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	30 * representation.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	31 *
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	32 * \ref simple_mb_img_ldr_t is a simple implementation of image loader.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	33 * It is a repository of image files in a directory and sub-directories.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	34 * ID of an image is mapped to a file in the directory and sub-directories.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	35 * ID it-self is a relative path relate to root directory of the repository.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	36 * \ref simple_mb_img_ldr_t handle PNG files only, now.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	37 *
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	38 * \section get_img_ldr Get an Image Loader for Program
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	39 * redraw_man_t::img_ldr is an image loader assigned by backend.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	40 * X backend, now, create an instance of simple_mb_img_ldr_t and assigns
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	41 * the instance to redraw_man_t::img_ldr. Programmers should get
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	42 * image loader assigned for a rdman by calling rdman_img_ldr().
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	43 *
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	44 * \image html image_n_ldr.png
266 af2d3300f8ff Add image for document of latex format Thinker K.F. Li <thinker@branda.to> parents: 265 diff changeset	45 * \image latex image_n_ldr.eps "Relationship of image and loader" width=10cm
265 b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	46 */
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	47
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	48 #define ASSERT(x)
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	49 #define OK 0
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	50 #define ERR -1
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	51
265 b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	52 /*! \brief Image shape.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	53 */
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	54 typedef struct _sh_image {
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	55 shape_t shape;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	56
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	57 co_aix x, y;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	58 co_aix w, h;
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 257 diff changeset	59 co_aix poses[4][2];
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	60
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 257 diff changeset	61 redraw_man_t *rdman;
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	62 } sh_image_t;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	63
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	64 static void sh_image_free(shape_t *shape);
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	65
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	66 /*! \brief Creae a new image shape.
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	67 *
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	68 * \param img_data is image data whose owner-ship is transfered.
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	69 */
356 3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	70 shape_t rdman_shape_image_new(redraw_man_t rdman,
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	71 co_aix x, co_aix y, co_aix w, co_aix h) {
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	72 sh_image_t *img;
450 a417fd980228 Replace cairo_format_t with mb_img_fmt_t. Thinker K.F. Li <thinker@branda.to> parents: 448 diff changeset	73 mb_img_fmt_t fmt;
338 6a1b36738d3d sh_image_set_img_data() is a function to change content of a sh_image_t. Thinker K.F. Li <thinker@branda.to> parents: 268 diff changeset	74 int r;
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	75
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	76 img = O_ALLOC(sh_image_t);
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	77 if(img == NULL)
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	78 return NULL;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	79
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	80 memset(img, 0, sizeof(sh_image_t));
338 6a1b36738d3d sh_image_set_img_data() is a function to change content of a sh_image_t. Thinker K.F. Li <thinker@branda.to> parents: 268 diff changeset	81 mb_obj_init((mb_obj_t *)img, MBO_IMAGE);
6a1b36738d3d sh_image_set_img_data() is a function to change content of a sh_image_t. Thinker K.F. Li <thinker@branda.to> parents: 268 diff changeset	82 img->rdman = rdman;
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	83 img->shape.free = sh_image_free;
356 3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	84
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	85 img->x = x;
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	86 img->y = y;
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	87 img->w = w;
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	88 img->h = h;
672 cbad519226d4 Make sh_image_t managed, and init property store for managed shapes Thinker K.F. Li <thinker@branda.to> parents: 473 diff changeset	89
cbad519226d4 Make sh_image_t managed, and init property store for managed shapes Thinker K.F. Li <thinker@branda.to> parents: 473 diff changeset	90 rdman_shape_man(rdman, (shape_t *)img);
338 6a1b36738d3d sh_image_set_img_data() is a function to change content of a sh_image_t. Thinker K.F. Li <thinker@branda.to> parents: 268 diff changeset	91
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	92 return (shape_t *)img;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	93 }
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	94
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	95 void sh_image_free(shape_t *shape) {
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	96 sh_image_t img = (sh_image_t )shape;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	97
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	98 mb_obj_destroy(shape);
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	99 free(img);
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	100 }
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	101
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	102 void sh_image_transform(shape_t *shape) {
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	103 sh_image_t img = (sh_image_t )shape;
356 3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	104 paint_t *paint;
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 257 diff changeset	105 co_aix (*poses)[2];
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 257 diff changeset	106 co_aix img_matrix[6];
268 43900cae1d49 Support resizing for image. Thinker K.F. Li <thinker@branda.to> parents: 266 diff changeset	107 co_aix x_factor, y_factor;
356 3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	108 int img_w, img_h;
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	109 int i;
268 43900cae1d49 Support resizing for image. Thinker K.F. Li <thinker@branda.to> parents: 266 diff changeset	110
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 257 diff changeset	111 poses = img->poses;
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	112 poses[0][0] = img->x;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	113 poses[0][1] = img->y;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	114 poses[1][0] = img->x + img->w;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	115 poses[1][1] = img->y;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	116 poses[2][0] = img->x + img->w;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	117 poses[2][1] = img->y + img->h;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	118 poses[3][0] = img->x;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	119 poses[3][1] = img->y + img->h;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	120 for(i = 0; i < 4; i++)
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	121 coord_trans_pos(img->shape.coord, &poses[i][0], &poses[i][1]);
356 3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	122
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	123 geo_from_positions(sh_get_geo(shape), 4, poses);
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 257 diff changeset	124
356 3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	125 paint = sh_get_fill(shape);
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	126 if(paint == NULL)
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	127 return;
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	128
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	129 ASSERT(paint.pnt_type == MBP_IMAGE);
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	130
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	131 paint_image_get_size(paint, &img_w, &img_h);
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	132
265 b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	133 /* Transformation from user space to image space */
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 257 diff changeset	134 img_matrix[0] = (poses[1][0] - poses[0][0]) / img->w;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 257 diff changeset	135 img_matrix[1] = (poses[1][1] - poses[0][1]) / img->w;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 257 diff changeset	136 img_matrix[2] = -poses[0][0];
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 257 diff changeset	137 img_matrix[3] = (poses[3][0] - poses[0][0]) / img->h;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 257 diff changeset	138 img_matrix[4] = (poses[3][1] - poses[0][1]) / img->h;
29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 257 diff changeset	139 img_matrix[5] = -poses[0][1];
356 3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	140 if(img->w != img_w \|\|
3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	141 img->h != img_h) {
268 43900cae1d49 Support resizing for image. Thinker K.F. Li <thinker@branda.to> parents: 266 diff changeset	142 /* Resize image */
356 3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	143 x_factor = img_w / img->w;
268 43900cae1d49 Support resizing for image. Thinker K.F. Li <thinker@branda.to> parents: 266 diff changeset	144 img_matrix[0] *= x_factor;
43900cae1d49 Support resizing for image. Thinker K.F. Li <thinker@branda.to> parents: 266 diff changeset	145 img_matrix[1] *= x_factor;
43900cae1d49 Support resizing for image. Thinker K.F. Li <thinker@branda.to> parents: 266 diff changeset	146 img_matrix[2] *= x_factor;
356 3e84458968ec Move mb_img_data_t out from argument list of rdman_shape_image_new(). Thinker K.F. Li <thinker@branda.to> parents: 348 diff changeset	147 y_factor = img_h / img->h;
268 43900cae1d49 Support resizing for image. Thinker K.F. Li <thinker@branda.to> parents: 266 diff changeset	148 img_matrix[3] *= y_factor;
43900cae1d49 Support resizing for image. Thinker K.F. Li <thinker@branda.to> parents: 266 diff changeset	149 img_matrix[4] *= y_factor;
43900cae1d49 Support resizing for image. Thinker K.F. Li <thinker@branda.to> parents: 266 diff changeset	150 img_matrix[5] *= y_factor;
43900cae1d49 Support resizing for image. Thinker K.F. Li <thinker@branda.to> parents: 266 diff changeset	151 }
260 29acbd8a0dd0 Integrate sh_image with svg2code.py. Thinker K.F. Li <thinker@branda.to> parents: 257 diff changeset	152 paint_image_set_matrix(sh_get_fill(shape), img_matrix);
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	153 }
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	154
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	155 /*! \brief Draw image for an image shape.
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	156 *
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	157 * \note Image is not rescaled for size of the shape.
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	158 */
448 16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine. Thinker K.F. Li <thinker@branda.to> parents: 356 diff changeset	159 void sh_image_draw(shape_t shape, mbe_t cr) {
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	160 sh_image_t img = (sh_image_t )shape;
448 16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine. Thinker K.F. Li <thinker@branda.to> parents: 356 diff changeset	161 mbe_pattern_t *saved_source;
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	162 co_aix *aggr;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	163
448 16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine. Thinker K.F. Li <thinker@branda.to> parents: 356 diff changeset	164 mbe_move_to(cr, img->poses[0][0], img->poses[0][1]);
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine. Thinker K.F. Li <thinker@branda.to> parents: 356 diff changeset	165 mbe_line_to(cr, img->poses[1][0], img->poses[1][1]);
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine. Thinker K.F. Li <thinker@branda.to> parents: 356 diff changeset	166 mbe_line_to(cr, img->poses[2][0], img->poses[2][1]);
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine. Thinker K.F. Li <thinker@branda.to> parents: 356 diff changeset	167 mbe_line_to(cr, img->poses[3][0], img->poses[3][1]);
16116d84bc5e Replace Cairo with a abstract layer mb_graph_engine. Thinker K.F. Li <thinker@branda.to> parents: 356 diff changeset	168 mbe_close_path(cr);
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	169 }
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	170
265 b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	171 /*! \brief Change geometry of an image.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	172 *
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	173 * Set position and size of an image.
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	174 */
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	175 void sh_image_set_geometry(shape_t *shape, co_aix x, co_aix y,
b42ee279669e Change function name and add comments. Thinker K.F. Li <thinker@branda.to> parents: 260 diff changeset	176 co_aix w, co_aix h) {
257 50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	177 sh_image_t img = (sh_image_t )shape;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	178
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	179 img->x = x;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	180 img->y = y;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	181 img->w = w;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	182 img->h = h;
50d253d0fcba Simple image loader and image shape. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	183 }

Mercurial > MadButterfly

annotate src/shape_image.c @ 776:77b561bb7929