1 files changed, 321 insertions, 0 deletions

diff --git a/libraries/evas/src/examples/evas-map-utils.c b/libraries/evas/src/examples/evas-map-utils.c
new file mode 100644
index 0000000..2d15882
--- /dev/null
+++ b/libraries/evas/src/examples/evas-map-utils.c
@@ -0,0 +1,321 @@
+/*
+ * gcc -o evas-map-utils evas-map-utils.c `pkg-config --cflags --libs evas ecore ecore-evas`
+ */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#else
+#define __UNUSED__
+#endif
+
+#include <Ecore.h>
+#include <Ecore_Evas.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+
+#define WIDTH  480
+#define HEIGHT 480
+
+typedef struct
+{
+   Ecore_Evas *ee;
+   Evas       *canvas;
+   struct {
+        int r, g, b, a;
+   } colors[6];
+   int colors_index;
+   int frame;
+   Eina_Bool   alpha : 1;
+   Eina_Bool   smooth : 1;
+   Eina_Bool   backface_culling : 1;
+   Eina_Bool   apply_perspective : 1;
+   Eina_Bool   apply_lighting : 1;
+} App_Data;
+
+static const char *help_string =
+        "Valid commands:\n"
+        "\ta - toggle alpha for maps\n"
+        "\ts - toggle smooth for maps\n"
+        "\tc - switch map color\n"
+        "\tb - toggle backface culling\n"
+        "\tp - toggle perspective\n"
+        "\tl - toggle lighting\n"
+        "\th - prints this help\n";
+
+static Eina_Bool
+_anim_cb(void *data)
+{
+   App_Data *ad = data;
+   Evas_Map *m;
+   const Evas_Map *old_map;
+   Evas_Object *o;
+   int r, g, b, a;
+   int win_w, win_h, img_w, img_h;
+   Evas_Coord x, y, w, h;
+
+   evas_output_size_get(ad->canvas, &win_w, &win_h);
+
+   m = evas_map_new(4);
+   evas_map_smooth_set(m, ad->smooth);
+   evas_map_alpha_set(m, ad->alpha);
+
+   r = ad->colors[ad->colors_index].r;
+   g = ad->colors[ad->colors_index].g;
+   b = ad->colors[ad->colors_index].b;
+   a = ad->colors[ad->colors_index].a;
+   evas_map_util_points_color_set(m, r, g, b, a);
+
+   o = evas_object_name_find(ad->canvas, "obj1");
+   evas_object_geometry_get(o, &x, &y, &w, &h);
+
+   evas_map_util_points_populate_from_object(m, o);
+   evas_map_util_rotate(m, 3 * ad->frame, x + (w / 2), y + (h / 2));
+   evas_object_map_set(o, m);
+   evas_object_map_enable_set(o, EINA_TRUE);
+
+   o = evas_object_name_find(ad->canvas, "obj2");
+   evas_object_geometry_get(o, &x, &y, &w, &h);
+   evas_object_image_size_get(o, &img_w, &img_h);
+
+   evas_map_util_points_populate_from_object_full(m, o, 100);
+   evas_map_point_image_uv_set(m, 0, 0, 0);
+   evas_map_point_image_uv_set(m, 1, img_w, 0);
+   evas_map_point_image_uv_set(m, 2, img_w, img_h);
+   evas_map_point_image_uv_set(m, 3, 0, img_h);
+   evas_map_util_3d_rotate(m, ad->frame * 6, ad->frame * 6, ad->frame * 6,
+                           x + (w / 3), y + 10, 0);
+   if (ad->apply_lighting)
+     evas_map_util_3d_lighting(m, win_w / 2, win_h / 2, -100,
+                               255, 255, 255, 0, 0, 0);
+   evas_object_map_set(o, m);
+   evas_object_map_enable_set(o, EINA_TRUE);
+
+   o = evas_object_name_find(ad->canvas, "obj3");
+   evas_object_geometry_get(o, &x, &y, &w, &h);
+   evas_object_image_size_get(o, &img_w, &img_h);
+
+   evas_map_util_points_populate_from_geometry(m, x, y + (h / 2), w, h, -20);
+   evas_map_point_image_uv_set(m, 0, 0, 0);
+   evas_map_point_image_uv_set(m, 1, img_w, 0);
+   evas_map_point_image_uv_set(m, 2, img_w, img_h);
+   evas_map_point_image_uv_set(m, 3, 0, img_h);
+   evas_map_util_3d_rotate(m, 20, ad->frame * 6, 0,
+                           x + (w / 2), y + (w / 2), w / 2);
+
+   if (ad->apply_perspective)
+     evas_map_util_3d_perspective(m, x + (w / 2), y + (h / 2), 0, 256);
+   if (ad->apply_lighting)
+     {
+        Evas_Coord mx, my;
+        evas_pointer_canvas_xy_get(ad->canvas, &mx, &my);
+        evas_map_util_3d_lighting(m, mx, my, -256,
+                                  255, 255, 255, 0, 0, 0);
+     }
+   if (ad->backface_culling)
+     {
+        if (evas_map_util_clockwise_get(m))
+          evas_object_show(o);
+        else
+          evas_object_hide(o);
+     }
+   else
+     evas_object_show(o);
+   evas_object_map_set(o, m);
+   evas_object_map_enable_set(o, EINA_TRUE);
+
+   evas_map_free(m);
+
+   o = evas_object_name_find(ad->canvas, "obj4");
+   evas_object_geometry_get(o, &x, &y, &w, &h);
+   evas_object_image_size_get(evas_object_image_source_get(o), &img_w, &img_h);
+
+   m = evas_map_new(4);
+   evas_map_point_coord_set(m, 0, x, y + h, 0);
+   evas_map_point_coord_set(m, 1, x + w, y + h, 0);
+   evas_map_point_coord_set(m, 2, win_w - 10, win_h - 30, 0);
+   evas_map_point_coord_set(m, 3, (win_w / 2) + 10, win_h - 30, 0);
+   evas_map_point_image_uv_set(m, 0, 0, img_h);
+   evas_map_point_image_uv_set(m, 1, img_w, img_h);
+   evas_map_point_image_uv_set(m, 2, img_w, 2 * (img_h / 3));
+   evas_map_point_image_uv_set(m, 3, 0, 2 * (img_h / 3));
+   evas_map_point_color_set(m, 0, 200, 200, 200, 150);
+   evas_map_point_color_set(m, 1, 200, 200, 200, 150);
+   evas_map_point_color_set(m, 2, 0, 0, 0, 0);
+   evas_map_point_color_set(m, 3, 0, 0, 0, 0);
+   evas_object_map_set(o, m);
+   evas_object_map_enable_set(o, EINA_TRUE);
+
+   evas_map_free(m);
+
+   ad->frame = (ad->frame + 1) % 60;
+
+   return EINA_TRUE;
+}
+
+static void
+_on_keydown(void *data, Evas *e, Evas_Object *o, void *event)
+{
+   App_Data *ad = data;
+   Evas_Event_Key_Down *ev = event;
+   const Evas_Modifier *mods;
+
+   mods = evas_key_modifier_get(ad->canvas);
+   switch (ev->keyname[0])
+     {
+      case 'a':
+         ad->alpha = !ad->alpha;
+         break;
+      case 's':
+         ad->smooth = !ad->smooth;
+         break;
+      case 'c':
+         ad->colors_index = (ad->colors_index + 1) % 6;
+         break;
+      case 'b':
+         ad->backface_culling = !ad->backface_culling;
+         break;
+      case 'p':
+         ad->apply_perspective = !ad->apply_perspective;
+         break;
+      case 'l':
+         ad->apply_lighting = !ad->apply_lighting;
+         break;
+      case 'h':
+         puts(help_string);
+         break;
+      default:
+         break;
+     }
+}
+
+static void
+_objs_fit(Evas *e)
+{
+   Evas_Object *o;
+   int w, h;
+
+   evas_output_size_get(e, &w, &h);
+   w /= 2;
+   h /= 2;
+
+   o = evas_object_name_find(e, "obj1");
+   evas_object_move(o, w / 4, h / 4);
+   evas_object_resize(o, w / 2, h / 2);
+
+   o = evas_object_name_find(e, "obj2");
+   evas_object_move(o, 5 * w / 4, h / 4);
+   evas_object_resize(o, w / 2, h / 2);
+
+   o = evas_object_name_find(e, "obj3");
+   evas_object_move(o, w / 4, 5 * h / 4);
+   evas_object_resize(o, w / 2, h / 2);
+
+   o = evas_object_name_find(e, "obj4_source");
+   evas_object_move(o, 5 * w / 4, 5 * h / 4);
+   evas_object_resize(o, w / 2, h / 2);
+
+   o = evas_object_name_find(e, "obj4");
+   evas_object_move(o, 5 * w / 4, 5 * h / 4);
+   evas_object_resize(o, w / 2, h / 2);
+}
+
+static void
+_on_resize(void *data __UNUSED__, Evas *e, Evas_Object *o __UNUSED__, void *event __UNUSED__)
+{
+   _objs_fit(e);
+}
+
+static void
+_on_free(void *data __UNUSED__, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event __UNUSED__)
+{
+   ecore_main_loop_quit();
+}
+
+int
+main(void)
+{
+   Evas_Object *bg, *o, *osrc;
+   static App_Data d = {
+        .ee = NULL,
+        .canvas = NULL,
+        .colors = {
+             { 255, 255, 255, 255 },
+             { 128, 128, 0, 128 },
+             { 255, 0, 0, 255 },
+             { 64, 128, 255, 255 },
+             { 11, 23, 58, 132 },
+             { 0, 0, 0, 255 }
+        },
+        .colors_index = 0,
+        .frame = 0,
+        .alpha = EINA_FALSE,
+        .smooth = EINA_FALSE,
+        .backface_culling = EINA_FALSE,
+        .apply_perspective = EINA_TRUE,
+        .apply_lighting = EINA_TRUE
+   };
+
+   if (!ecore_evas_init())
+     return EXIT_FAILURE;
+
+   d.ee = ecore_evas_new(NULL, 0, 0, WIDTH, HEIGHT, NULL);
+   if (!d.ee)
+     goto error;
+
+   d.canvas = ecore_evas_get(d.ee);
+
+   bg = evas_object_image_filled_add(d.canvas);
+   evas_object_image_file_set(bg, "cube1.png", NULL);
+   ecore_evas_object_associate(d.ee, bg, 0);
+   evas_object_focus_set(bg, EINA_TRUE);
+   evas_object_move(bg, 0, 0);
+   evas_object_resize(bg, WIDTH, HEIGHT);
+   evas_object_show(bg);
+
+   o = evas_object_rectangle_add(d.canvas);
+   evas_object_name_set(o, "obj1");
+   evas_object_color_set(o, 128, 0, 200, 200);
+   evas_object_show(o);
+
+   o = evas_object_image_filled_add(d.canvas);
+   evas_object_name_set(o, "obj2");
+   evas_object_image_file_set(o, "enlightenment.png", NULL);
+   evas_object_show(o);
+
+   o = evas_object_image_filled_add(d.canvas);
+   evas_object_name_set(o, "obj3");
+   evas_object_image_file_set(o, "enlightenment.png", NULL);
+   evas_object_show(o);
+
+   osrc = evas_object_image_filled_add(d.canvas);
+   evas_object_image_file_set(osrc, "im1.png", NULL);
+   evas_object_name_set(osrc, "obj4_source");
+   evas_object_show(osrc);
+
+   o = evas_object_image_filled_add(d.canvas);
+   evas_object_image_source_set(o, osrc);
+   evas_object_name_set(o, "obj4");
+   evas_object_show(o);
+
+   _objs_fit(d.canvas);
+
+   evas_object_event_callback_add(bg, EVAS_CALLBACK_KEY_DOWN, _on_keydown, &d);
+   evas_object_event_callback_add(bg, EVAS_CALLBACK_RESIZE, _on_resize, NULL);
+   evas_object_event_callback_add(bg, EVAS_CALLBACK_FREE, _on_free, NULL);
+
+   ecore_animator_add(_anim_cb, &d);
+
+   ecore_main_loop_begin();
+
+   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");
+panic:
+   ecore_evas_shutdown();
+   return -1;
+}