wearable/src/lib/ecore_x/xcb/ecore_xcb_region.c

   1 #include "ecore_xcb_private.h"
   2 #include <pixman.h>
   3
   4 /*
   5  * [ ] XPolygonRegion
   6  * [ ] XShrinkRegion
   7  * [ ] XClipBox
   8  * [ ] XXorRegion
   9  */
  10
  11 EAPI Ecore_X_XRegion *
  12 ecore_x_xregion_new()
  13 {
  14    pixman_region16_t *region;
  15
  16    region = (pixman_region16_t *)malloc(sizeof(pixman_region16_t));
  17    if (!region) return NULL;
  18
  19    pixman_region_init(region);
  20
  21    return (Ecore_X_XRegion *)region;
  22 }
  23
  24 EAPI void
  25 ecore_x_xregion_free(Ecore_X_XRegion *region)
  26 {
  27    if (!region) return;
  28
  29    pixman_region_fini(region);
  30    free(region);
  31 }
  32
  33 EAPI Eina_Bool
  34 ecore_x_xregion_set(Ecore_X_XRegion *region,
  35                     Ecore_X_GC       gc)
  36 {
  37    xcb_rectangle_t *rects;
  38    pixman_box16_t *boxes;
  39    int num = 0, i = 0;
  40
  41    CHECK_XCB_CONN;
  42
  43    if (!region) return EINA_FALSE;
  44
  45    boxes = pixman_region_rectangles((pixman_region16_t *)region, &num);
  46    if ((!boxes) || (num == 0)) return EINA_FALSE;
  47
  48    rects = (xcb_rectangle_t *)malloc(sizeof(xcb_rectangle_t) * num);
  49    if (!rects) return EINA_FALSE;
  50
  51    for (i = 0; i < num; i++)
  52      {
  53         rects[i].x = boxes[i].x1;
  54         rects[i].y = boxes[i].y1;
  55         rects[i].width = boxes[i].x2 - boxes[i].x1 + 1;
  56         rects[i].height = boxes[i].y2 - boxes[i].y1 + 1;
  57      }
  58
  59    xcb_set_clip_rectangles(_ecore_xcb_conn, XCB_CLIP_ORDERING_YX_BANDED,
  60                            gc, 0, 0, num, rects);
  61
  62 //   ecore_x_flush();
  63    return EINA_TRUE;
  64 }
  65
  66 EAPI void
  67 ecore_x_xregion_translate(Ecore_X_XRegion *region,
  68                           int              x,
  69                           int              y)
  70 {
  71    if (!region) return;
  72
  73    pixman_region_translate((pixman_region16_t *)region, x, y);
  74 }
  75
  76 EAPI Eina_Bool
  77 ecore_x_xregion_intersect(Ecore_X_XRegion *dst,
  78                           Ecore_X_XRegion *r1,
  79                           Ecore_X_XRegion *r2)
  80 {
  81    return pixman_region_intersect((pixman_region16_t *)dst,
  82                                   (pixman_region16_t *)r1,
  83                                   (pixman_region16_t *)r2);
  84 }
  85
  86 EAPI Eina_Bool
  87 ecore_x_xregion_union(Ecore_X_XRegion *dst,
  88                       Ecore_X_XRegion *r1,
  89                       Ecore_X_XRegion *r2)
  90 {
  91    return pixman_region_union((pixman_region16_t *)dst,
  92                               (pixman_region16_t *)r1,
  93                               (pixman_region16_t *)r2);
  94 }
  95
  96 EAPI Eina_Bool
  97 ecore_x_xregion_union_rect(Ecore_X_XRegion   *dst,
  98                            Ecore_X_XRegion   *src,
  99                            Ecore_X_Rectangle *rect)
 100 {
 101    return pixman_region_union_rect((pixman_region16_t *)dst,
 102                                    (pixman_region16_t *)src,
 103                                    rect->x, rect->y, rect->width, rect->height);
 104 }
 105
 106 EAPI Eina_Bool
 107 ecore_x_xregion_subtract(Ecore_X_XRegion *dst,
 108                          Ecore_X_XRegion *rm,
 109                          Ecore_X_XRegion *rs)
 110 {
 111    return pixman_region_subtract((pixman_region16_t *)dst,
 112                                  (pixman_region16_t *)rm,
 113                                  (pixman_region16_t *)rs);
 114 }
 115
 116 EAPI Eina_Bool
 117 ecore_x_xregion_is_empty(Ecore_X_XRegion *region)
 118 {
 119    if (!region) return EINA_TRUE;
 120
 121    return !pixman_region_not_empty((pixman_region16_t *)region);
 122 }
 123
 124 EAPI Eina_Bool
 125 ecore_x_xregion_is_equal(Ecore_X_XRegion *r1,
 126                          Ecore_X_XRegion *r2)
 127 {
 128    if ((!r1) || (!r2)) return EINA_FALSE;
 129
 130    return pixman_region_equal((pixman_region16_t *)r1,
 131                               (pixman_region16_t *)r2);
 132 }
 133
 134 EAPI Eina_Bool
 135 ecore_x_xregion_point_contain(Ecore_X_XRegion *region,
 136                               int              x,
 137                               int              y)
 138 {
 139    if (!region) return EINA_FALSE;
 140
 141    return pixman_region_contains_point((pixman_region16_t *)region, x, y, NULL);
 142 }
 143
 144 EAPI Eina_Bool
 145 ecore_x_xregion_rect_contain(Ecore_X_XRegion   *region,
 146                              Ecore_X_Rectangle *rect)
 147 {
 148    pixman_box16_t box;
 149
 150    if ((!region) || (!rect)) return EINA_FALSE;
 151
 152    box.x1 = rect->x;
 153    box.y1 = rect->y;
 154    box.x2 = rect->x + rect->width - 1;
 155    box.y2 = rect->y + rect->height - 1;
 156
 157    return pixman_region_contains_rectangle((pixman_region16_t *)region, &box);
 158 }
 159