eina-tiler:add union, subtract, intersection, equal apis for tilers
Summary: Support union, subtract, intersection, equal(comparison) between tilers. @feature Test Plan: Test with added test case(src/tests/eina/eina_test_tiler.c) and the example(src/examples/eina/eina_tiler_02.c) Reviewers: gwanglim, devilhorns, raster, zmike, cedric CC: cedric Differential Revision: https://phab.enlightenment.org/D880
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//Compile with:
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//gcc eina_tiler_02.c -o eina_tiler_02 `pkg-config --cflags --libs ecore-evas ecore evas eina`
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#include <Ecore_Evas.h>
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#include <Ecore.h>
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#include <Evas.h>
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#include <Eina.h>
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#define WIN_W (810)
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#define WIN_H (280)
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#define TILER1_X (30)
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#define TILER1_Y (30)
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#define TILER2_X (530)
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#define TILER2_Y (30)
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#define TILER_W (250)
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#define TILER_H (250)
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#define RESULT_X (280)
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#define RESULT_Y (30)
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static Eina_Tiler *tiler1, *tiler2;
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static Eina_List *t1_objs, *t2_objs, *tiler_objs;
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static Evas *evas;
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static Evas_Object *bg;
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static unsigned int cur_method;
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typedef enum {
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METHOD_UNION = 0,
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METHOD_SUBTRACT,
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METHOD_INTERSECTION,
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}Current_Method;
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static unsigned int rect_idx =0, rect_count = 4;
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static const Eina_Rectangle
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rects[4][2][2] = {
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{{{40, 0, 80, 250}},
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{{0, 150, 250, 70}, {0, 20, 250, 70}}},
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{{{20, 20, 65, 150}, {135, 80, 65, 150}},
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{{20, 80, 65, 150}, {135, 20, 65, 150}}},
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{{{20, 20, 210, 210}},
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{{80, 80, 90, 90}}},
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{{{0, 0, 150, 90}, {180, 180, 70, 70}},
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{{70, 70, 120, 120}}}
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};
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static const char*
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Methods[3] = {
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"UNION 1+2",
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"SUBTRACT 1-2",
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"INTERSECTION 1&2"
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};
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static unsigned int tile_idx =0, tile_count = 5;
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static const unsigned int
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tilesize[5] = {
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32,
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16,
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8,
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4,
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1
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};
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static const char commands[] = \
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"commands are:\n"
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"\tn - next arrangement \n"
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"\tu - get union\n"
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"\ts - get subtract\n"
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"\ti - get intersection\n"
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"\tt - chage tile size ([32], 16, 8, 4) \n"
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"\tEsc - Exit\n";
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static Evas_Object *
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add_text(const char *text, int x, int y, int w)
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{
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Evas_Object *o = evas_object_text_add(evas);
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evas_object_color_set(o, 0, 0, 0, 255);
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evas_object_move(o, x, y);
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evas_object_text_font_set(o, "Sans", 20);
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evas_object_text_text_set(o, text);
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evas_object_show(o);
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return o;
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}
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void tiler_calc()
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{
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Eina_Tiler *tiler;
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Eina_Iterator *itr;
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Evas_Object *o;
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Eina_Rectangle *rect;
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int i = 0;
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/* clear evas rectangles */
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if (tiler_objs)
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{
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EINA_LIST_FREE(tiler_objs, o)
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{
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evas_object_hide(o);
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evas_object_del(o);
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}
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}
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tiler = eina_tiler_new(TILER_W, TILER_H);
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eina_tiler_tile_size_set(tiler, tilesize[tile_idx], tilesize[tile_idx]);
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/* calculate with tiler1 and tiler2 */
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switch(cur_method)
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{
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case METHOD_UNION:
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eina_tiler_union(tiler, tiler1);
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eina_tiler_union(tiler, tiler2);
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break;
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case METHOD_SUBTRACT:
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eina_tiler_union(tiler, tiler1);
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eina_tiler_subtract(tiler, tiler2);
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break;
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case METHOD_INTERSECTION:
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tiler = eina_tiler_intersection(tiler1, tiler2);
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break;
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}
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if (tiler)
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{
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/* draw rects of result tiler */
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itr = eina_tiler_iterator_new(tiler);
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EINA_ITERATOR_FOREACH(itr, rect)
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{
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fprintf(stdout, "Result Rect [%d] (%d, %d) (%d x %d)\n", i++, rect->x, rect->y, rect->w, rect->h);
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o = evas_object_rectangle_add(evas);
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evas_object_color_set(o, 0, 255, 0, 255);
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evas_object_resize(o, rect->w, rect->h);
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evas_object_move(o, RESULT_X + rect->x, RESULT_Y + rect->y);
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evas_object_show(o);
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tiler_objs = eina_list_append(tiler_objs, o);
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}
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eina_iterator_free(itr);
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o = add_text(Methods[cur_method], RESULT_X, 0, TILER_W);
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tiler_objs = eina_list_append(tiler_objs, o);
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eina_tiler_free(tiler);
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}
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}
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void rect_update()
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{
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Evas_Object *o;
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Eina_Rectangle *rect;
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Eina_Iterator *itr;
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int i = 0;
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if (t1_objs)
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{
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EINA_LIST_FREE(t1_objs, o)
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{
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evas_object_hide(o);
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evas_object_del(o);
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}
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}
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if (t2_objs)
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{
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EINA_LIST_FREE(t2_objs, o)
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{
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evas_object_hide(o);
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evas_object_del(o);
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}
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}
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eina_tiler_clear(tiler1);
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eina_tiler_clear(tiler2);
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eina_tiler_tile_size_set(tiler1, tilesize[tile_idx], tilesize[tile_idx]);
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eina_tiler_tile_size_set(tiler2, tilesize[tile_idx], tilesize[tile_idx]);
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for (i = 0; i < 2; i ++)
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{
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if (rects[rect_idx][0][i].w > 0 && rects[rect_idx][0][i].w > 0)
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eina_tiler_rect_add(tiler1, &rects[rect_idx][0][i]);
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if (rects[rect_idx][1][i].w > 0 && rects[rect_idx][1][i].w > 0)
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eina_tiler_rect_add(tiler2, &rects[rect_idx][1][i]);
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}
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/* draw rects of tiler1 */
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itr = eina_tiler_iterator_new(tiler1);
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EINA_ITERATOR_FOREACH(itr, rect)
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{
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o = evas_object_rectangle_add(evas);
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evas_object_color_set(o, 255, 0, 0, 255);
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evas_object_resize(o, rect->w, rect->h);
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evas_object_move(o, TILER1_X + rect->x, TILER1_Y + rect->y);
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evas_object_show(o);
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t1_objs = eina_list_append(t1_objs, o);
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}
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eina_iterator_free(itr);
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/* draw rects of tiler2 */
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itr = eina_tiler_iterator_new(tiler2);
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EINA_ITERATOR_FOREACH(itr, rect)
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{
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o = evas_object_rectangle_add(evas);
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evas_object_color_set(o, 0, 0, 255, 255);
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evas_object_resize(o, rect->w, rect->h);
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evas_object_move(o, TILER2_X + rect->x, TILER2_Y + rect->y);
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evas_object_show(o);
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t2_objs = eina_list_append(t2_objs, o);
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}
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eina_iterator_free(itr);
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tiler_calc();
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}
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static void
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_on_key_down(void *data,
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Evas *evas EINA_UNUSED,
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Evas_Object *o EINA_UNUSED,
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void *einfo)
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{
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Evas_Event_Key_Down *ev;
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int x,y;
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ev = (Evas_Event_Key_Down *)einfo;
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if(strcmp(ev->key,"Escape") == 0)
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{
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ecore_main_loop_quit();
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}
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else if(strcmp(ev->key, "u") == 0)
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{
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if (cur_method == METHOD_UNION)
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return;
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cur_method = METHOD_UNION;
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}
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else if(strcmp(ev->key, "s") == 0)
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{
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if (cur_method == METHOD_SUBTRACT)
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return;
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cur_method = METHOD_SUBTRACT;
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}
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else if(strcmp(ev->key, "i") == 0)
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{
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if (cur_method == METHOD_INTERSECTION)
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return;
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cur_method = METHOD_INTERSECTION;
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}
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else if(strcmp(ev->key, "t") == 0)
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{
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/* change tiler tile size */
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tile_idx ++;
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tile_idx %= tile_count;
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fprintf(stdout, "Tiler Size : %d\n", tilesize[tile_idx]);
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rect_update();
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return;
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}
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else if(strcmp(ev->key, "n") == 0)
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{
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/* change arrangement of tilers's rects */
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rect_idx ++;
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rect_idx %= rect_count;
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rect_update();
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return;
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}
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else
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{
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fprintf(stdout, "Key %s not supported.\nCommands:%s", ev->key, commands);
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return;
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}
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tiler_calc();
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}
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int
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main(int argc, char *argv[])
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{
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Ecore_Evas *ee;
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Evas_Object *o;
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int i;
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Eina_Rectangle *rect;
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Eina_Iterator *itr;
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fprintf(stdout, "Usage.\nCommands:%s", commands);
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ecore_evas_init();
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ecore_init();
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evas_init();
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eina_init();
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ee = ecore_evas_new(NULL, 0, 0, WIN_W, WIN_H, NULL);
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if (!ee)
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{
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fputs("ERROR: Could not create window. Check ecore-evas install.\n",
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stderr);
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goto end;
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}
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evas = ecore_evas_get(ee);
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/* window bg */
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o = evas_object_rectangle_add(evas);
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evas_object_color_set(o, 255, 255, 255, 255);
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evas_object_resize(o, WIN_W, WIN_H);
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evas_object_show(o);
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evas_object_focus_set(o, EINA_TRUE);
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bg = o;
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/* tiler1 bg */
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o = evas_object_rectangle_add(evas);
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evas_object_color_set(o, 0, 0, 0, 255);
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evas_object_resize(o, TILER_W, TILER_H);
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evas_object_move(o, TILER1_X, TILER1_Y);
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evas_object_show(o);
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/* tiler2 bg */
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o = evas_object_rectangle_add(evas);
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evas_object_color_set(o, 0, 0, 0, 255);
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evas_object_resize(o, TILER_W, TILER_H);
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evas_object_move(o, TILER2_X, TILER2_Y);
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evas_object_show(o);
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add_text("Tiler1", TILER1_X, 0, TILER_W);
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add_text("Tiler2", TILER2_X, 0, TILER_W);
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tiler1 = eina_tiler_new(TILER_W, TILER_H);
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tiler2 = eina_tiler_new(TILER_W, TILER_H);
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rect_update();
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evas_object_event_callback_add(bg, EVAS_CALLBACK_KEY_DOWN, _on_key_down, NULL);
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ecore_evas_show(ee);
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ecore_main_loop_begin();
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eina_list_free(tiler_objs);
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eina_list_free(t1_objs);
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eina_list_free(t2_objs);
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eina_tiler_free(tiler1);
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eina_tiler_free(tiler2);
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ecore_evas_free(ee);
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end:
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eina_shutdown();
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evas_shutdown();
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ecore_shutdown();
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ecore_evas_shutdown();
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return 0;
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}
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