fix for backwards rects and ellipses

core/PGraphics.java

@@ -824,6 +824,14 @@ public class PGraphics extends PImage implements PConstants {
       y1 -= vradius;
     }
 
+    if (x1 > x2) {
+      float temp = x1; x1 = x2; x2 = temp;
+    }
+
+    if (y1 > y2) {
+      float temp = y1; y1 = y2; y2 = temp;
+    }
+
     rectImpl(x1, y1, x2, y2);
   }
 
@@ -865,6 +873,16 @@ public class PGraphics extends PImage implements PConstants {
       y = b - d/2f;
     }
 
+    if (w < 0) {  // undo negative width
+      x += w;
+      w = -w;
+    }
+
+    if (h < 0) {  // undo negative height
+      y += h;
+      h = -h;
+    }
+
     ellipseImpl(x, y, w, h);
   }
 

core/todo.txt

@@ -1,11 +1,13 @@
 0078 core
-X text lines were getting horizontally mashed together
-X text lines also getting vertically smashed together
-X make a note of the change to font.width()
+X text fixes
+X   lines were getting horizontally mashed together
+X   lines also getting vertically smashed together
+X   make a note of the change to font.width()
+X backwards rects and backwards ellipses weren't properly drawn
+X   code now compensates for negative widths or swapped x1/x2
 
 _ get SCREEN_SPACE text working again
 
-_ backwards rects may not be getting drawn in PGraphics2
 
 _ updatePixels() not setting PApplet.pixels
 _   also throwing NPEs