block.append(('Left:', xoff, 0, image.size[0]))
block.append(('Bottom:', yoff, 0, image.size[1]))
block.append(('Width:', width, 0, maxx))
block.append(('Height:', height, 0, maxy))
while Draw.PupBlock('Create new region', block):
if not width.val or not height.val or 2**int(
log(width.val, 2)) != width.val or 2**int(
log(height.val, 2)) != height.val:
if isinstance(block[-1], tuple): block.extend(['', ''])
block[-2] = 'Width & Height must'
block[-1] = 'be powers of 2'
elif xoff.val + width.val > image.size[0]:
if isinstance(block[-1], tuple): block.extend(['', ''])
block[-2] = 'Left + Width must'
block[-1] = 'be less than %d' % image.size[0]
elif yoff.val + height.val > image.size[1]:
if isinstance(block[-1], tuple): block.extend(['', ''])
block[-2] = 'Bottom + Height must'
block[-1] = 'be less than %d' % image.size[1]
else:
Window.WaitCursor(1)
if not h.isPanel(image):
h = h.New(image)
h.addRegion(xoff.val, yoff.val, width.val,
height.val).makeCurrent()
Window.WaitCursor(0)
break
elif r == 3:
h.regenerate()
