blendish: fixed bndJoinAreaOverlay

oui: added uiContains()

blendish.h

@@ -1248,26 +1248,26 @@ void bndSplitterWidgets(NVGcontext *ctx, float x, float y, float w, float h) {
 
 void bndJoinAreaOverlay(NVGcontext *ctx, float x, float y, float w, float h,
     int vertical, int mirror) {
-        
+    
     if (vertical) {
         float u = w;
         w = h; h = u;
     }
-        
+    
     float s = (w<h)?w:h;
-        
+    
     float x0,y0,x1,y1;
     if (mirror) {
-        x0 = x+w;
-        y0 = y+h;
-        x1 = x;
-        y1 = y;
+        x0 = w;
+        y0 = h;
+        x1 = 0;
+        y1 = 0;
         s = -s;
     } else {
-        x0 = x;
-        y0 = y;
-        x1 = x+w;
-        y1 = y+h;
+        x0 = 0;
+        y0 = 0;
+        x1 = w;
+        y1 = h;
     }
     
     float yc = (y0+y1)*0.5f;
@@ -1275,7 +1275,7 @@ void bndJoinAreaOverlay(NVGcontext *ctx, float x, float y, float w, float h,
     float s4 = s/4.0f;
     float s8 = s/8.0f;
     float x4 = x0+s4;
-        
+    
     float points[][2] = {
         { x0,y0 },
         { x1,y0 },
@@ -1289,14 +1289,13 @@ void bndJoinAreaOverlay(NVGcontext *ctx, float x, float y, float w, float h,
         { x4,yc-s8 },
         { x0,yc-s8 }
     };  
-        
+    
     nvgBeginPath(ctx);
     int count = sizeof(points) / (sizeof(float)*2);
-    nvgMoveTo(ctx,points[0][vertical&1],points[0][(vertical&1)^1]);
+    nvgMoveTo(ctx,x+points[0][vertical&1],y+points[0][(vertical&1)^1]);
     for (int i = 1; i < count; ++i) {
-        nvgLineTo(ctx,points[i][vertical&1],points[i][(vertical&1)^1]);
+        nvgLineTo(ctx,x+points[i][vertical&1],y+points[i][(vertical&1)^1]);
     }
-    //nvgClosePath(ctx);
     
     nvgFillColor(ctx, nvgRGBAf(0,0,0,0.3));
     nvgFill(ctx);

oui.h

@@ -522,6 +522,10 @@ int uiGetChildId(int item);
 // undefined.
 UIrect uiGetRect(int item);
 
+// returns 1 if an items absolute rectangle contains a given coordinate
+// otherwise 0
+int uiContains(int item, int x, int y);
+
 // when called from an input event handler, returns the active items absolute
 // layout rectangle. If uiGetActiveRect() is called outside of a handler,
 // the values of the returned rectangle are undefined.
@@ -1288,6 +1292,28 @@ int uiGetChildCount(int item) {
     return uiItemPtr(item)->numkids;
 }
 
+UIrect uiGetAbsoluteRect(int item) {
+    UIrect rect = uiGetRect(item);
+    item = uiParent(item);
+    while (item >= 0) {
+        rect.x += uiItemPtr(item)->rect.x;
+        rect.y += uiItemPtr(item)->rect.y;
+        item = uiParent(item);
+    }    
+    return rect;
+}
+
+int uiContains(int item, int x, int y) {
+    UIrect rect = uiGetAbsoluteRect(item);
+    x -= rect.x;
+    y -= rect.y;
+    if ((x>=0)
+     && (y>=0)
+     && (x<rect.w)
+     && (y<rect.h)) return 1;
+    return 0;
+}
+
 int uiFindItem(int item, int x, int y, int ox, int oy) {
     UIitem *pitem = uiItemPtr(item);
     if (pitem->frozen) return -1;