Add the base Enlightenment Foundation Libraries - eina, eet, evas, ecore, embryo, and edje.

Note that embryo wont be used, but I'm not sure yet if you can build edje without it.

1 files changed, 204 insertions, 0 deletions

diff --git a/libraries/evas/src/examples/evas-images2.c b/libraries/evas/src/examples/evas-images2.c
new file mode 100644
index 0000000..ba7766c
--- /dev/null
+++ b/libraries/evas/src/examples/evas-images2.c
@@ -0,0 +1,204 @@
+/**
+ * Simple Evas example illustrating some image objects functions
+ *
+ * You'll need at least one engine built for it (excluding the buffer
+ * one) and the png image loader/saver also built. See stdout/stderr
+ * for output.
+ *
+ * @verbatim
+ * gcc -o evas-images2 evas-images2.c `pkg-config --libs --cflags evas ecore ecore-evas`
+ * @endverbatim
+ */
+
+#ifdef HAVE_CONFIG_H
+
+#include "config.h"
+#else
+
+#define PACKAGE_EXAMPLES_DIR "."
+#define __UNUSED__
+
+#endif
+
+#include <Ecore.h>
+#include <Ecore_Evas.h>
+#include <stdio.h>
+#include <errno.h>
+
+#define WIDTH  (320)
+#define HEIGHT (240)
+
+static const char *img_path = PACKAGE_EXAMPLES_DIR "/enlightenment.png";
+static const char *commands = \
+  "commands are:\n"
+  "\tp - change proxy image's source\n"
+  "\ts - print noise image's stride value\n"
+  "\ta - save noise image to disk (/tmp dir)\n"
+  "\th - print help\n";
+
+const char *file_path = "/tmp/evas-images2-example.png";
+const char *quality_str = "quality=100";
+
+struct test_data
+{
+   Ecore_Evas  *ee;
+   Evas        *evas;
+   Evas_Object *logo, *noise_img, *proxy_img, *bg;
+};
+
+static struct test_data d = {0};
+
+static void
+_on_preloaded(void        *data __UNUSED__,
+              Evas        *e __UNUSED__,
+              Evas_Object *obj __UNUSED__,
+              void        *event_info __UNUSED__)
+{
+    fprintf(stdout, "Image has been pre-loaded!\n");
+}
+
+static void
+_on_destroy(Ecore_Evas *ee __UNUSED__)
+{
+   ecore_main_loop_quit();
+}
+
+/* here just to keep our example's window size and background image's
+ * size in synchrony */
+static void
+_canvas_resize_cb(Ecore_Evas *ee)
+{
+   int w, h;
+
+   ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
+   evas_object_resize(d.bg, w, h);
+}
+
+static void
+_on_keydown(void        *data __UNUSED__,
+            Evas        *evas __UNUSED__,
+            Evas_Object *o __UNUSED__,
+            void        *einfo)
+{
+   Evas_Event_Key_Down *ev = einfo;
+
+   if (strcmp(ev->keyname, "h") == 0) /* print help */
+     {
+        fprintf(stdout, commands);
+        return;
+     }
+
+   if (strcmp(ev->keyname, "s") == 0) /* print proxy image' stride value */
+     {
+        int stride = evas_object_image_stride_get(d.noise_img);
+
+        fprintf(stdout, "Image has row stride value of %d, which accounts"
+                        " for %d pixels\n", stride, stride / 4);
+
+        return;
+     }
+
+   if (strcmp(ev->keyname, "p") == 0) /* change proxy's source */
+     {
+        Evas_Object *source = evas_object_image_source_get(d.proxy_img);
+
+        if (source == d.logo) source = d.noise_img;
+        else source = d.logo;
+
+        evas_object_image_source_set(d.proxy_img, source);
+
+        fprintf(stdout, "Proxy image's source changed\n");
+
+        return;
+     }
+
+   if (strcmp(ev->keyname, "a") == 0) /* save noise image to disk */
+     {
+        if (!evas_object_image_save(d.noise_img, file_path, NULL, quality_str))
+          fprintf(stderr, "Cannot save image to '%s' (flags '%s')\n",
+                  file_path, quality_str);
+        else
+          fprintf(stdout, "Image saved to '%s' (flags '%s'), check it out with "
+                          "an image viewer\n", file_path, quality_str);
+
+        return;
+     }
+}
+
+int
+main(void)
+{
+   unsigned int i;
+   unsigned int pixels[(WIDTH / 4) * (HEIGHT / 4)];
+
+   srand(time(NULL));
+
+   if (!ecore_evas_init())
+     return EXIT_FAILURE;
+
+   /* this will give you a window with an Evas canvas under the first
+    * engine available */
+   d.ee = ecore_evas_new(NULL, 10, 10, WIDTH, HEIGHT, NULL);
+   if (!d.ee)
+     goto error;
+
+   ecore_evas_callback_destroy_set(d.ee, _on_destroy);
+   ecore_evas_callback_resize_set(d.ee, _canvas_resize_cb);
+   ecore_evas_show(d.ee);
+
+   /* the canvas pointer, de facto */
+   d.evas = ecore_evas_get(d.ee);
+
+   d.bg = evas_object_rectangle_add(d.evas);
+   evas_object_color_set(d.bg, 255, 255, 255, 255); /* white bg */
+   evas_object_move(d.bg, 0, 0); /* at canvas' origin */
+   evas_object_resize(d.bg, WIDTH, HEIGHT); /* covers full canvas */
+   evas_object_show(d.bg);
+
+   evas_object_focus_set(d.bg, EINA_TRUE);
+   evas_object_event_callback_add(
+     d.bg, EVAS_CALLBACK_KEY_DOWN, _on_keydown, NULL);
+
+   d.logo = evas_object_image_filled_add(d.evas);
+
+   evas_object_event_callback_add(
+       d.logo, EVAS_CALLBACK_IMAGE_PRELOADED, _on_preloaded, NULL);
+   evas_object_image_preload(d.logo, EINA_TRUE);
+
+   evas_object_image_file_set(d.logo, img_path, NULL);
+   evas_object_resize(d.logo, WIDTH / 2, HEIGHT / 2);
+   evas_object_show(d.logo);
+
+   /* creating noise image */
+   for (i = 0; i < sizeof(pixels) / sizeof(pixels[0]); i++)
+     pixels[i] = rand();
+
+   d.noise_img = evas_object_image_add(d.evas);
+   evas_object_image_size_set(d.noise_img, WIDTH / 4, HEIGHT / 4);
+   evas_object_image_data_set(d.noise_img, pixels);
+   evas_object_image_filled_set(d.noise_img, EINA_TRUE);
+   evas_object_move(d.noise_img, (WIDTH * 3) / 4, 0);
+   evas_object_resize(d.noise_img, WIDTH / 4, HEIGHT / 4);
+   evas_object_show(d.noise_img);
+   fprintf(stdout, "Creating noise image with size %d, %d\n",
+           WIDTH / 4, HEIGHT / 4);
+
+   d.proxy_img = evas_object_image_filled_add(d.evas);
+   evas_object_image_source_set(d.proxy_img, d.logo);
+   evas_object_move(d.proxy_img, WIDTH / 4, HEIGHT / 2);
+   evas_object_resize(d.proxy_img, WIDTH / 2, HEIGHT / 2);
+   evas_object_show(d.proxy_img);
+
+   fprintf(stdout, commands);
+   ecore_main_loop_begin();
+
+   ecore_evas_free(d.ee);
+   ecore_evas_shutdown();
+   return 0;
+
+error:
+   fprintf(stderr, "you got to have at least one evas engine built and linked"
+                   " up to ecore-evas for this example to run properly.\n");
+   ecore_evas_shutdown();
+   return -1;
+}