minor improvements (show busy cursor, etc.)

utils/Modeller/uv_pack.py

@@ -50,25 +50,26 @@ def pack():
 	if not image:
 		raise Abort('No texture image selected')
 
-	imagesize = image.getSize()
+	imgwidth, imgheight = image.getSize()
-	if imagesize[0] != imagesize[1]:
+	if imgwidth != imgheight:
 		Blender.Draw.PupMenu("Warning%t|Image isn't a square!")
-	gap = (float(GAP) / imagesize[0], float(GAP) / imagesize[1])
+	gap = (float(GAP) / imgwidth, float(GAP) / imgheight)
-	margin = (float(MARGIN) / imagesize[0] - gap[0] * 0.5, float(MARGIN) / imagesize[1] - gap[1] * 0.5)
+	margin = (float(MARGIN) / imgwidth - gap[0] * 0.5, float(MARGIN) / imgheight - gap[1] * 0.5)
-
 
 	def drawrect(x0, y0, x1, y1, color = (255, 255, 255, 255)):
-		x0 *= imagesize[0]
+		x0 *= imgwidth
-		y0 *= imagesize[1]
+		x1 *= imgwidth
-		x1 *= imagesize[0]
+		y0 *= imgheight
-		y1 *= imagesize[1]
+		y1 *= imgheight
 		for u in range(int(x0 + 0.5), int(x1 - 0.5)):
 			for v in range(int(y0 + 0.5), int(y1 - 0.5)):
 				image.setPixelI(u, v, color)
 
+
 	boxes = []
 	meshes = {}
 
+	BIG = 1<<30
 	Blender.Window.DrawProgressBar(0.0, "packing")
 	for o in Blender.Scene.GetCurrent().objects.selected:
 		if o.type != "Mesh":
@@ -83,8 +84,8 @@ def pack():
 		meshes[mesh.name] = True
 
 		print "\tobject '%s'" % o.name
-		xmin = ymin = 1000.0
+		xmin = ymin = BIG
-		xmax = ymax = -1000.0
+		xmax = ymax = -BIG
 		for f in mesh.faces:
 			for p in f.uv:
 				xmin = min(xmin, p[0])
@@ -94,21 +95,22 @@ def pack():
 
 		width = xmax - xmin
 		height = ymax - ymin
-		boxes.append([0, 0, width + gap[0], height + gap[1], xmin, ymin, mesh, o.name])
+		boxes.append([0, 0, width + gap[0], height + gap[1], xmin, ymin, mesh])
 
 	if not boxes:
 		raise Abort('No mesh objects selected')
 
 
-	boxsize = Blender.Geometry.BoxPack2D(boxes)
+	boxwidth, boxheight = Blender.Geometry.BoxPack2D(boxes)
-	xscale = (1.0 - 2.0 * margin[0]) / max(boxsize[0], boxsize[1])
+	boxmax = max(boxwidth, boxheight)
-	yscale = (1.0 - 2.0 * margin[1]) / max(boxsize[0], boxsize[1])
+	xscale = (1.0 - 2.0 * margin[0]) / boxmax
+	yscale = (1.0 - 2.0 * margin[1]) / boxmax
 
 	Blender.Window.DrawProgressBar(0.2, "Erasing texture")
 	drawrect(0, 0, 1, 1) # erase texture
 	for box in boxes:
-		xmin = ymin = 1000.0
+		xmin = ymin = BIG
-		xmax = ymax = -1000.0
+		xmax = ymax = -BIG
 		for f in box[6].faces:
 			for p in f.uv:
 				p[0] = (p[0] - box[4] + box[0] + gap[0] * 0.5 + margin[0]) * xscale
@@ -121,6 +123,9 @@ def pack():
 
 		drawrect(xmin, ymin, xmax, ymax, (random.randint(128, 255), random.randint(128, 255),
 				random.randint(128, 255), 255))
+		box[6].update()
+
+	Blender.Window.RedrawAll()
 	Blender.Window.DrawProgressBar(1.0, "Finished")
 
 
@@ -128,15 +133,17 @@ def pack():
 editmode = Blender.Window.EditMode()
 if editmode:
 	Blender.Window.EditMode(0)
+Blender.Window.WaitCursor(1)
 
 try:
 	print "box packing ..."
 	pack()
 	print "done\n"
 except Abort, e:
+	print "Error:", e.msg, "  -> aborting ...\n"
 	Blender.Draw.PupMenu("Error%t|" + e.msg)
-	print "Error:", e.msg, " -> aborting ...\n"
 
+Blender.Window.WaitCursor(0)
 if editmode:
 	Blender.Window.EditMode(1)