/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/view.py
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revision 261 by bh, Thu Aug 15 17:44:33 2002 UTC revision 288 by bh, Thu Aug 29 13:31:43 2002 UTC
# Line 129  class ZoomInTool(RectTool): Line 129  class ZoomInTool(RectTool):
129              Tool.MouseUp(self, event)              Tool.MouseUp(self, event)
130              sx, sy = self.start              sx, sy = self.start
131              cx, cy = self.current              cx, cy = self.current
132              if sx == cx and sy == cy:              if sx == cx or sy == cy:
133                  # Just a mouse click. Simply zoom in by a factor of two                  # Just a mouse click or a degenerate rectangle. Simply
134                    # zoom in by a factor of two
135                    # FIXME: For a click this is the desired behavior but should we
136                    # really do this for degenrate rectagles as well or
137                    # should we ignore them?
138                  self.view.ZoomFactor(2, center = (cx, cy))                  self.view.ZoomFactor(2, center = (cx, cy))
139              else:              else:
140                  # A drag. Zoom in to the rectangle                  # A drag. Zoom in to the rectangle
# Line 149  class ZoomOutTool(RectTool): Line 153  class ZoomOutTool(RectTool):
153              Tool.MouseUp(self, event)              Tool.MouseUp(self, event)
154              sx, sy = self.start              sx, sy = self.start
155              cx, cy = self.current              cx, cy = self.current
156              if sx == cx and sy == cy:              if sx == cx or sy == cy:
157                  # Just a mouse click. Simply zoom out by a factor of two                  # Just a mouse click or a degenerate rectangle. Simply
158                    # zoom out by a factor of two.
159                    # FIXME: For a click this is the desired behavior but should we
160                    # really do this for degenrate rectagles as well or
161                    # should we ignore them?
162                  self.view.ZoomFactor(0.5, center = (cx, cy))                  self.view.ZoomFactor(0.5, center = (cx, cy))
163              else:              else:
164                  # A drag. Zoom out to the rectangle                  # A drag. Zoom out to the rectangle
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