Changeset d68239a1 in mainline for uspace/lib/ui/src/paint.c

Timestamp:

2022-04-04T14:48:41Z (3 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

master, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

86fff971

Parents:

0d1d0ea

git-author:

Jiri Svoboda <jiri@…> (2022-04-03 17:48:17)

git-committer:

Jiri Svoboda <jiri@…> (2022-04-04 14:48:41)

Message:

Scrollbar needs custom button decorations

Push button now allows setting a 'custom decoration' which means
instead of painting the button text a callback function is invoked
to paint the decoration.

File:

• uspace/lib/ui/src/paint.c (modified) (1 diff)

uspace/lib/ui/src/paint.c

@@ -360 +360 @@
 }
 
+/** Paint upward pointing triangle.
+ *
+ * @param gc Graphic context
+ * @param pos Center position
+ * @param n Length of triangle side
+ */
+errno_t ui_paint_up_triangle(gfx_context_t *gc, gfx_coord2_t *pos,
+    gfx_coord_t n)
+{
+        gfx_coord_t i;
+        errno_t rc;
+        gfx_rect_t rect;
+
+        for (i = 0; i < n; i++) {
+                rect.p0.x = pos->x - i;
+                rect.p0.y = pos->y - n / 2 + i;
+                rect.p1.x = pos->x + i + 1;
+                rect.p1.y = pos->y - n / 2 + i + 1;
+                rc = gfx_fill_rect(gc, &rect);
+                if (rc != EOK)
+                        return rc;
+        }
+
+        return EOK;
+}
+
+/** Paint downward pointing triangle.
+ *
+ * @param gc Graphic context
+ * @param pos Center position
+ * @param n Length of triangle side
+ */
+errno_t ui_paint_down_triangle(gfx_context_t *gc, gfx_coord2_t *pos,
+    gfx_coord_t n)
+{
+        gfx_coord_t i;
+        errno_t rc;
+        gfx_rect_t rect;
+
+        for (i = 0; i < n; i++) {
+                rect.p0.x = pos->x - i;
+                rect.p0.y = pos->y + n / 2 - i;
+                rect.p1.x = pos->x + i + 1;
+                rect.p1.y = pos->y + n / 2 - i + 1;
+                rc = gfx_fill_rect(gc, &rect);
+                if (rc != EOK)
+                        return rc;
+        }
+
+        return EOK;
+}
+
+/** Paint left pointing triangle.
+ *
+ * @param gc Graphic context
+ * @param pos Center position
+ * @param n Length of triangle side
+ */
+errno_t ui_paint_left_triangle(gfx_context_t *gc, gfx_coord2_t *pos,
+    gfx_coord_t n)
+{
+        gfx_coord_t i;
+        errno_t rc;
+        gfx_rect_t rect;
+
+        for (i = 0; i < n; i++) {
+                rect.p0.x = pos->x - n / 2 + i;
+                rect.p0.y = pos->y - i;
+                rect.p1.x = pos->x - n / 2 + i + 1;
+                rect.p1.y = pos->y + i + 1;
+                rc = gfx_fill_rect(gc, &rect);
+                if (rc != EOK)
+                        return rc;
+        }
+
+        return EOK;
+}
+
+/** Paint right pointing triangle.
+ *
+ * @param gc Graphic context
+ * @param pos Center position
+ * @param n Length of triangle side
+ */
+errno_t ui_paint_right_triangle(gfx_context_t *gc, gfx_coord2_t *pos,
+    gfx_coord_t n)
+{
+        gfx_coord_t i;
+        errno_t rc;
+        gfx_rect_t rect;
+
+        for (i = 0; i < n; i++) {
+                rect.p0.x = pos->x + n / 2 - i;
+                rect.p0.y = pos->y - i;
+                rect.p1.x = pos->x + n / 2 - i + 1;
+                rect.p1.y = pos->y + i + 1;
+                rc = gfx_fill_rect(gc, &rect);
+                if (rc != EOK)
+                        return rc;
+        }
+
+        return EOK;
+}
+
 /** Paint a text box.
  *