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-rw-r--r--libraries/evas/src/examples/evas-images.c353
1 files changed, 0 insertions, 353 deletions
diff --git a/libraries/evas/src/examples/evas-images.c b/libraries/evas/src/examples/evas-images.c
deleted file mode 100644
index a8cf3c4..0000000
--- a/libraries/evas/src/examples/evas-images.c
+++ /dev/null
@@ -1,353 +0,0 @@
1/**
2 * Simple Evas example illustrating some image objects functions
3 *
4 * You'll need at least one engine built for it (excluding the buffer
5 * one) and the png image loader also built. See stdout/stderr for
6 * output.
7 *
8 * @verbatim
9 * gcc -o evas-images evas-images.c `pkg-config --libs --cflags evas ecore ecore-evas`
10 * @endverbatim
11 */
12
13#ifdef HAVE_CONFIG_H
14
15#include "config.h"
16#else
17
18#define PACKAGE_EXAMPLES_DIR "."
19#define __UNUSED__
20
21#endif
22
23#include <Ecore.h>
24#include <Ecore_Evas.h>
25#include <stdio.h>
26#include <errno.h>
27
28#define WIDTH (320)
29#define HEIGHT (240)
30
31static const char *border_img_path = PACKAGE_EXAMPLES_DIR "/red.png";
32static const char *valid_path = PACKAGE_EXAMPLES_DIR "/enlightenment.png";
33static const char *bogus_path = "/tmp/non-existent-220986.png";
34static const char *commands = \
35 "commands are:\n"
36 "\tx - change image's x fill coordinate\n"
37 "\ty - change image's y fill coordinate\n"
38 "\tw - change image's w fill size\n"
39 "\te - change image's h fill size\n"
40 "\tf - toggle image filled property (overrides fill)\n"
41 "\ta - toggle image's alpha channel usage\n"
42 "\tm - toggle border's smooth scaling\n"
43 "\tt - change border's thickness\n"
44 "\tb - change border's center region aspect\n"
45 "\tc - change border's scaling factor\n"
46 "\ts - print image's fill property status\n"
47 "\th - print help\n";
48
49struct test_data
50{
51 Ecore_Evas *ee;
52 Evas *evas;
53 Evas_Object *img1, *img2, *bg, *border;
54};
55
56static struct test_data d = {0};
57
58static void
59_on_destroy(Ecore_Evas *ee __UNUSED__)
60{
61 ecore_main_loop_quit();
62}
63
64/* here just to keep our example's window size and background image's
65 * size in synchrony */
66static void
67_canvas_resize_cb(Ecore_Evas *ee)
68{
69 int w, h;
70
71 ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
72 evas_object_resize(d.bg, w, h);
73}
74
75static const char *
76_border_fill_mode_to_str(Evas_Border_Fill_Mode mode)
77{
78 switch (mode)
79 {
80 case EVAS_BORDER_FILL_NONE:
81 return "none";
82
83 case EVAS_BORDER_FILL_DEFAULT:
84 return "default";
85
86 case EVAS_BORDER_FILL_SOLID:
87 return "solid";
88
89 default:
90 return "invalid";
91 }
92}
93
94static void
95_on_keydown(void *data __UNUSED__,
96 Evas *evas __UNUSED__,
97 Evas_Object *o __UNUSED__,
98 void *einfo)
99{
100 Evas_Event_Key_Down *ev = einfo;
101
102 if (strcmp(ev->keyname, "h") == 0) /* print help */
103 {
104 fprintf(stdout, commands);
105 return;
106 }
107
108 if (strcmp(ev->keyname, "m") == 0) /* toggle border image's smooth scaling */
109 {
110 Eina_Bool smooth_scale = evas_object_image_smooth_scale_get(d.border);
111
112 evas_object_image_smooth_scale_set(d.border, !smooth_scale);
113
114 fprintf(stdout, "Image's border is now %s smooth scaling\n",
115 smooth_scale ? "without" : "with");
116
117 return;
118 }
119
120 if (strcmp(ev->keyname, "t") == 0) /* change border's thickness */
121 {
122 int l, r, t, b;
123
124 evas_object_image_border_get(d.border, &l, &r, &t, &b);
125
126 l = (l + 3) % 9;
127 r = (r + 3) % 9;
128 t = (t + 3) % 9;
129 b = (b + 3) % 9;
130
131 evas_object_image_border_set(d.border, l, r, t, b);
132
133 fprintf(stdout, "Image's border thickness is now %d\n", l);
134
135 return;
136 }
137
138 if (strcmp(ev->keyname, "c") == 0) /* change border's scaling factor */
139 {
140 double scale = evas_object_image_border_scale_get(d.border);
141
142 scale *= 2;
143 if (scale > 4.0) scale = 1.0;
144
145 evas_object_image_border_scale_set(d.border, scale);
146
147 fprintf(stdout, "Image's border scaling factor is now %f\n", scale);
148
149 return;
150 }
151
152 if (strcmp(ev->keyname, "b") == 0) /* change border's center
153 * region's aspect */
154 {
155 Eina_Bool fill = \
156 evas_object_image_border_center_fill_get(d.border);
157
158 fill = (fill + 1) % 3;
159
160 evas_object_image_border_center_fill_set(d.border, fill);
161
162 fprintf(stdout, "Image's border center region aspect is now \"%s\"\n",
163 _border_fill_mode_to_str(fill));
164
165 return;
166 }
167
168 if (strcmp(ev->keyname, "a") == 0) /* toggle alpha channel usage */
169 {
170 Eina_Bool alpha = evas_object_image_alpha_get(d.img1);
171
172 evas_object_image_alpha_set(d.img1, !alpha);
173
174 fprintf(stdout, "Image's alpha channel is now %s\n",
175 alpha ? "off" : "on");
176
177 return;
178 }
179
180 if (strcmp(ev->keyname, "f") == 0) /* toggle filled property */
181 {
182 Eina_Bool filled = evas_object_image_filled_get(d.img1);
183
184 evas_object_image_filled_set(d.img1, !filled);
185
186 fprintf(stdout, "Image's x filled property is now %s\n",
187 filled ? "off" : "on");
188
189 return;
190 }
191
192 if (strcmp(ev->keyname, "x") == 0) /* change x fill coordinate */
193 {
194 Evas_Coord x, y, w, h;
195
196 evas_object_image_fill_get(d.img1, &x, &y, &w, &h);
197 x = (x + 20) % (WIDTH / 2);
198 evas_object_image_fill_set(d.img1, x, y, w, h);
199
200 fprintf(stdout, "Image's x fill coordinate changed to %d\n", x);
201
202 return;
203 }
204
205 if (strcmp(ev->keyname, "y") == 0) /* change y fill coordinate */
206 {
207 Evas_Coord x, y, w, h;
208
209 evas_object_image_fill_get(d.img1, &x, &y, &w, &h);
210 y = (y + 20) % (HEIGHT / 2);
211 evas_object_image_fill_set(d.img1, x, y, w, h);
212
213 fprintf(stdout, "Image's y fill coordinate changed to %d\n", y);
214
215 return;
216 }
217
218 if (strcmp(ev->keyname, "w") == 0) /* change w fill size */
219 {
220 Evas_Coord x, y, w, h;
221
222 evas_object_image_fill_get(d.img1, &x, &y, &w, &h);
223 if (w == (WIDTH / 4)) w = (WIDTH / 2);
224 else if (w == WIDTH / 2) w = WIDTH;
225 else w = (WIDTH / 4);
226 evas_object_image_fill_set(d.img1, x, y, w, h);
227
228 fprintf(stdout, "Image's w fill size changed to %d\n", w);
229
230 return;
231 }
232
233 if (strcmp(ev->keyname, "e") == 0) /* change h fill size */
234 {
235 Evas_Coord x, y, w, h;
236
237 evas_object_image_fill_get(d.img1, &x, &y, &w, &h);
238 if (h == (HEIGHT / 4)) h = (HEIGHT / 2);
239 else if (h == HEIGHT / 2) h = HEIGHT;
240 else h = (HEIGHT / 4);
241 evas_object_image_fill_set(d.img1, x, y, w, h);
242
243 fprintf(stdout, "Image's h fill size changed to %d\n", h);
244
245 return;
246 }
247
248 if (strcmp(ev->keyname, "s") == 0) /* status */
249 {
250 Evas_Coord x, y, w, h;
251
252 evas_object_image_fill_get(d.img1, &x, &y, &w, &h);
253
254 fprintf(stdout, "Image has fill properties set to: %d, %d, %d, %d\n",
255 x, y, w, h);
256
257 return;
258 }
259}
260
261int
262main(void)
263{
264 int err;
265
266 if (!ecore_evas_init())
267 return EXIT_FAILURE;
268
269 /* this will give you a window with an Evas canvas under the first
270 * engine available */
271 d.ee = ecore_evas_new(NULL, 10, 10, WIDTH, HEIGHT, NULL);
272 if (!d.ee)
273 goto error;
274
275 ecore_evas_callback_destroy_set(d.ee, _on_destroy);
276 ecore_evas_callback_resize_set(d.ee, _canvas_resize_cb);
277 ecore_evas_show(d.ee);
278
279 /* the canvas pointer, de facto */
280 d.evas = ecore_evas_get(d.ee);
281
282 d.bg = evas_object_rectangle_add(d.evas);
283 evas_object_color_set(d.bg, 255, 255, 255, 255); /* white bg */
284 evas_object_move(d.bg, 0, 0); /* at canvas' origin */
285 evas_object_resize(d.bg, WIDTH, HEIGHT); /* covers full canvas */
286 evas_object_show(d.bg);
287
288 d.img1 = evas_object_image_add(d.evas);
289 evas_object_image_file_set(d.img1, valid_path, NULL);
290 err = evas_object_image_load_error_get(d.img1);
291 if (err != EVAS_LOAD_ERROR_NONE)
292 {
293 fprintf(stderr, "could not load image '%s'. error string is \"%s\"\n",
294 valid_path, evas_load_error_str(err));
295 }
296 else
297 {
298 fprintf(stdout,
299 "loaded image '%s' with succes! error string is \"%s\"\n",
300 valid_path, evas_load_error_str(err));
301
302 evas_object_move(d.img1, 3, 3);
303 evas_object_image_fill_set(d.img1, 0, 0, WIDTH / 2, HEIGHT / 2);
304 evas_object_resize(d.img1, WIDTH / 2, HEIGHT / 2);
305 evas_object_show(d.img1);
306
307 evas_object_focus_set(d.bg, EINA_TRUE);
308 evas_object_event_callback_add(
309 d.bg, EVAS_CALLBACK_KEY_DOWN, _on_keydown, NULL);
310 }
311
312 /* this is a border around the image above, here just to emphasize
313 * its geometry */
314 d.border = evas_object_image_filled_add(d.evas);
315 evas_object_image_file_set(d.border, border_img_path, NULL);
316 evas_object_image_border_set(d.border, 3, 3, 3, 3);
317 evas_object_image_border_center_fill_set(d.border, EVAS_BORDER_FILL_NONE);
318
319 evas_object_move(d.border, 0, 0);
320 evas_object_resize(d.border, (WIDTH / 2) + 6, (HEIGHT / 2) + 6);
321 evas_object_show(d.border);
322
323 /* image loading will fail for this one -- unless one cheats and
324 * puts a valid image on that path */
325 d.img2 = evas_object_image_add(d.evas);
326 evas_object_image_file_set(d.img2, bogus_path, NULL);
327 err = evas_object_image_load_error_get(d.img2);
328 if (err != EVAS_LOAD_ERROR_NONE)
329 {
330 fprintf(stderr, "could not load image '%s': error string is \"%s\"\n",
331 bogus_path, evas_load_error_str(err));
332 }
333 else
334 {
335 evas_object_move(d.img2, WIDTH / 2, HEIGHT / 2);
336 evas_object_image_fill_set(d.img2, 0, 0, WIDTH / 2, HEIGHT / 2);
337 evas_object_resize(d.img2, WIDTH / 2, HEIGHT / 2);
338 evas_object_show(d.img2);
339 }
340
341 fprintf(stdout, commands);
342 ecore_main_loop_begin();
343
344 ecore_evas_free(d.ee);
345 ecore_evas_shutdown();
346 return 0;
347
348error:
349 fprintf(stderr, "you got to have at least one evas engine built and linked"
350 " up to ecore-evas for this example to run properly.\n");
351 ecore_evas_shutdown();
352 return -1;
353}
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