Python wx.Overlay() Examples

The following are 22 code examples of wx.Overlay(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module wx , or try the search function .
Example #1
Source File: backend_wx.py    From ImageFusion with MIT License 5 votes vote down vote up 
def press(self, event):
        if self._active == 'ZOOM':
            self.wxoverlay = wx.Overlay()
Example #2
Source File: backend_wx.py    From twitter-stock-recommendation with MIT License 5 votes vote down vote up 
def draw_rubberband(self, x0, y0, x1, y1):
            # Use an Overlay to draw a rubberband-like bounding box.
            if self.wxoverlay is None:
                self.wxoverlay = wx.Overlay()
            dc = wx.ClientDC(self.canvas)
            odc = wx.DCOverlay(self.wxoverlay, dc)
            odc.Clear()

            dc = wx.GCDC(dc)

            height = self.canvas.figure.bbox.height
            y1 = height - y1
            y0 = height - y0

            if y1 < y0:
                y0, y1 = y1, y0
            if x1 < x0:
                x0, x1 = x1, x0

            w = x1 - x0
            h = y1 - y0
            rect = wx.Rect(x0, y0, w, h)

            rubberBandColor = '#C0C0FF'  # or load from config?

            # Set a pen for the border
            color = wxc.NamedColour(rubberBandColor)
            dc.SetPen(wx.Pen(color, 1))

            # use the same color, plus alpha for the brush
            r, g, b, a = color.Get(True)
            color.Set(r, g, b, 0x60)
            dc.SetBrush(wx.Brush(color))
            if wxc.is_phoenix:
                dc.DrawRectangle(rect)
            else:
                dc.DrawRectangleRect(rect)
Example #3
Source File: backend_wx.py    From twitter-stock-recommendation with MIT License 5 votes vote down vote up 
def press(self, event):
        if self._active == 'ZOOM':
            if not self.retinaFix:
                self.wxoverlay = wx.Overlay()
            else:
                if event.inaxes is not None:
                    self.savedRetinaImage = self.canvas.copy_from_bbox(
                        event.inaxes.bbox)
                    self.zoomStartX = event.xdata
                    self.zoomStartY = event.ydata
                    self.zoomAxes = event.inaxes
Example #4
Source File: backend_wx.py    From CogAlg with MIT License 5 votes vote down vote up 
def draw_rubberband(self, x0, y0, x1, y1):
            # Use an Overlay to draw a rubberband-like bounding box.
            if self.wxoverlay is None:
                self.wxoverlay = wx.Overlay()
            dc = wx.ClientDC(self.canvas)
            odc = wx.DCOverlay(self.wxoverlay, dc)
            odc.Clear()

            dc = wx.GCDC(dc)

            height = self.canvas.figure.bbox.height
            y1 = height - y1
            y0 = height - y0

            if y1 < y0:
                y0, y1 = y1, y0
            if x1 < x0:
                x0, x1 = x1, x0

            w = x1 - x0
            h = y1 - y0
            rect = wx.Rect(x0, y0, w, h)

            rubberBandColor = '#C0C0FF'  # or load from config?

            # Set a pen for the border
            color = wx.Colour(rubberBandColor)
            dc.SetPen(wx.Pen(color, 1))

            # use the same color, plus alpha for the brush
            r, g, b, a = color.Get(True)
            color.Set(r, g, b, 0x60)
            dc.SetBrush(wx.Brush(color))
            dc.DrawRectangle(rect)
Example #5
Source File: backend_wx.py    From CogAlg with MIT License 5 votes vote down vote up 
def press(self, event):
        if self._active == 'ZOOM':
            if not self.retinaFix:
                self.wxoverlay = wx.Overlay()
            else:
                if event.inaxes is not None:
                    self.savedRetinaImage = self.canvas.copy_from_bbox(
                        event.inaxes.bbox)
                    self.zoomStartX = event.xdata
                    self.zoomStartY = event.ydata
                    self.zoomAxes = event.inaxes
Example #6
Source File: backend_wx.py    From coffeegrindsize with MIT License 5 votes vote down vote up 
def draw_rubberband(self, x0, y0, x1, y1):
            # Use an Overlay to draw a rubberband-like bounding box.
            if self.wxoverlay is None:
                self.wxoverlay = wx.Overlay()
            dc = wx.ClientDC(self.canvas)
            odc = wx.DCOverlay(self.wxoverlay, dc)
            odc.Clear()

            dc = wx.GCDC(dc)

            height = self.canvas.figure.bbox.height
            y1 = height - y1
            y0 = height - y0

            if y1 < y0:
                y0, y1 = y1, y0
            if x1 < x0:
                x0, x1 = x1, x0

            w = x1 - x0
            h = y1 - y0
            rect = wx.Rect(x0, y0, w, h)

            rubberBandColor = '#C0C0FF'  # or load from config?

            # Set a pen for the border
            color = wx.Colour(rubberBandColor)
            dc.SetPen(wx.Pen(color, 1))

            # use the same color, plus alpha for the brush
            r, g, b, a = color.Get(True)
            color.Set(r, g, b, 0x60)
            dc.SetBrush(wx.Brush(color))
            dc.DrawRectangle(rect)
Example #7
Source File: backend_wx.py    From coffeegrindsize with MIT License 5 votes vote down vote up 
def press(self, event):
        if self._active == 'ZOOM':
            if not self.retinaFix:
                self.wxoverlay = wx.Overlay()
            else:
                if event.inaxes is not None:
                    self.savedRetinaImage = self.canvas.copy_from_bbox(
                        event.inaxes.bbox)
                    self.zoomStartX = event.xdata
                    self.zoomStartY = event.ydata
                    self.zoomAxes = event.inaxes
Example #8
Source File: backend_wx.py    From ImageFusion with MIT License 5 votes vote down vote up 
def draw_rubberband(self, event, x0, y0, x1, y1):
        # Use an Overlay to draw a rubberband-like bounding box.

        dc = wx.ClientDC(self.canvas)
        odc = wx.DCOverlay(self.wxoverlay, dc)
        odc.Clear()

        # Mac's DC is already the same as a GCDC, and it causes
        # problems with the overlay if we try to use an actual
        # wx.GCDC so don't try it.
        if 'wxMac' not in wx.PlatformInfo:
            dc = wx.GCDC(dc)

        height = self.canvas.figure.bbox.height
        y1 = height - y1
        y0 = height - y0

        if y1<y0: y0, y1 = y1, y0
        if x1<y0: x0, x1 = x1, x0

        w = x1 - x0
        h = y1 - y0
        rect = wx.Rect(x0, y0, w, h)

        rubberBandColor = '#C0C0FF' # or load from config?

        # Set a pen for the border
        color = wx.NamedColour(rubberBandColor)
        dc.SetPen(wx.Pen(color, 1))

        # use the same color, plus alpha for the brush
        r, g, b = color.Get()
        color.Set(r,g,b, 0x60)
        dc.SetBrush(wx.Brush(color))
        dc.DrawRectangleRect(rect)
Example #9
Source File: backend_wx.py    From Mastering-Elasticsearch-7.0 with MIT License 5 votes vote down vote up 
def press(self, event):
        if self._active == 'ZOOM':
            if not self.retinaFix:
                self.wxoverlay = wx.Overlay()
            else:
                if event.inaxes is not None:
                    self.savedRetinaImage = self.canvas.copy_from_bbox(
                        event.inaxes.bbox)
                    self.zoomStartX = event.xdata
                    self.zoomStartY = event.ydata
                    self.zoomAxes = event.inaxes
Example #10
Source File: backend_wx.py    From python3_ios with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def draw_rubberband(self, x0, y0, x1, y1):
            # Use an Overlay to draw a rubberband-like bounding box.
            if self.wxoverlay is None:
                self.wxoverlay = wx.Overlay()
            dc = wx.ClientDC(self.canvas)
            odc = wx.DCOverlay(self.wxoverlay, dc)
            odc.Clear()

            dc = wx.GCDC(dc)

            height = self.canvas.figure.bbox.height
            y1 = height - y1
            y0 = height - y0

            if y1 < y0:
                y0, y1 = y1, y0
            if x1 < x0:
                x0, x1 = x1, x0

            w = x1 - x0
            h = y1 - y0
            rect = wx.Rect(x0, y0, w, h)

            rubberBandColor = '#C0C0FF'  # or load from config?

            # Set a pen for the border
            color = wx.Colour(rubberBandColor)
            dc.SetPen(wx.Pen(color, 1))

            # use the same color, plus alpha for the brush
            r, g, b, a = color.Get(True)
            color.Set(r, g, b, 0x60)
            dc.SetBrush(wx.Brush(color))
            dc.DrawRectangle(rect)
Example #11
Source File: backend_wx.py    From python3_ios with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def press(self, event):
        if self._active == 'ZOOM':
            if not self.retinaFix:
                self.wxoverlay = wx.Overlay()
            else:
                if event.inaxes is not None:
                    self.savedRetinaImage = self.canvas.copy_from_bbox(
                        event.inaxes.bbox)
                    self.zoomStartX = event.xdata
                    self.zoomStartY = event.ydata
                    self.zoomAxes = event.inaxes
Example #12
Source File: backend_wx.py    From GraphicDesignPatternByPython with MIT License 5 votes vote down vote up 
def draw_rubberband(self, x0, y0, x1, y1):
            # Use an Overlay to draw a rubberband-like bounding box.
            if self.wxoverlay is None:
                self.wxoverlay = wx.Overlay()
            dc = wx.ClientDC(self.canvas)
            odc = wx.DCOverlay(self.wxoverlay, dc)
            odc.Clear()

            dc = wx.GCDC(dc)

            height = self.canvas.figure.bbox.height
            y1 = height - y1
            y0 = height - y0

            if y1 < y0:
                y0, y1 = y1, y0
            if x1 < x0:
                x0, x1 = x1, x0

            w = x1 - x0
            h = y1 - y0
            rect = wx.Rect(x0, y0, w, h)

            rubberBandColor = '#C0C0FF'  # or load from config?

            # Set a pen for the border
            color = wx.Colour(rubberBandColor)
            dc.SetPen(wx.Pen(color, 1))

            # use the same color, plus alpha for the brush
            r, g, b, a = color.Get(True)
            color.Set(r, g, b, 0x60)
            dc.SetBrush(wx.Brush(color))
            dc.DrawRectangle(rect)
Example #13
Source File: backend_wx.py    From GraphicDesignPatternByPython with MIT License 5 votes vote down vote up 
def press(self, event):
        if self._active == 'ZOOM':
            if not self.retinaFix:
                self.wxoverlay = wx.Overlay()
            else:
                if event.inaxes is not None:
                    self.savedRetinaImage = self.canvas.copy_from_bbox(
                        event.inaxes.bbox)
                    self.zoomStartX = event.xdata
                    self.zoomStartY = event.ydata
                    self.zoomAxes = event.inaxes
Example #14
Source File: backend_wx.py    From neural-network-animation with MIT License 5 votes vote down vote up 
def draw_rubberband(self, event, x0, y0, x1, y1):
        # Use an Overlay to draw a rubberband-like bounding box.

        dc = wx.ClientDC(self.canvas)
        odc = wx.DCOverlay(self.wxoverlay, dc)
        odc.Clear()

        # Mac's DC is already the same as a GCDC, and it causes
        # problems with the overlay if we try to use an actual
        # wx.GCDC so don't try it.
        if 'wxMac' not in wx.PlatformInfo:
            dc = wx.GCDC(dc)

        height = self.canvas.figure.bbox.height
        y1 = height - y1
        y0 = height - y0

        if y1<y0: y0, y1 = y1, y0
        if x1<y0: x0, x1 = x1, x0

        w = x1 - x0
        h = y1 - y0
        rect = wx.Rect(x0, y0, w, h)

        rubberBandColor = '#C0C0FF' # or load from config?

        # Set a pen for the border
        color = wx.NamedColour(rubberBandColor)
        dc.SetPen(wx.Pen(color, 1))

        # use the same color, plus alpha for the brush
        r, g, b = color.Get()
        color.Set(r,g,b, 0x60)
        dc.SetBrush(wx.Brush(color))
        dc.DrawRectangleRect(rect)
Example #15
Source File: backend_wx.py    From neural-network-animation with MIT License 5 votes vote down vote up 
def press(self, event):
        if self._active == 'ZOOM':
            self.wxoverlay = wx.Overlay()
Example #16
Source File: backend_wx.py    From Mastering-Elasticsearch-7.0 with MIT License 5 votes vote down vote up 
def draw_rubberband(self, x0, y0, x1, y1):
            # Use an Overlay to draw a rubberband-like bounding box.
            if self.wxoverlay is None:
                self.wxoverlay = wx.Overlay()
            dc = wx.ClientDC(self.canvas)
            odc = wx.DCOverlay(self.wxoverlay, dc)
            odc.Clear()

            dc = wx.GCDC(dc)

            height = self.canvas.figure.bbox.height
            y1 = height - y1
            y0 = height - y0

            if y1 < y0:
                y0, y1 = y1, y0
            if x1 < x0:
                x0, x1 = x1, x0

            w = x1 - x0
            h = y1 - y0
            rect = wx.Rect(x0, y0, w, h)

            rubberBandColor = '#C0C0FF'  # or load from config?

            # Set a pen for the border
            color = wx.Colour(rubberBandColor)
            dc.SetPen(wx.Pen(color, 1))

            # use the same color, plus alpha for the brush
            r, g, b, a = color.Get(True)
            color.Set(r, g, b, 0x60)
            dc.SetBrush(wx.Brush(color))
            dc.DrawRectangle(rect)
Example #17
Source File: backend_wx.py    From python3_ios with BSD 3-Clause "New" or "Revised" License 4 votes vote down vote up 
def draw_rubberband(self, event, x0, y0, x1, y1):
        if self.retinaFix:  # On Macs, use the following code
            # wx.DCOverlay does not work properly on Retina displays.
            rubberBandColor = '#C0C0FF'
            if self.prevZoomRect:
                self.prevZoomRect.pop(0).remove()
            self.canvas.restore_region(self.savedRetinaImage)
            X0, X1 = self.zoomStartX, event.xdata
            Y0, Y1 = self.zoomStartY, event.ydata
            lineX = (X0, X0, X1, X1, X0)
            lineY = (Y0, Y1, Y1, Y0, Y0)
            self.prevZoomRect = self.zoomAxes.plot(
                lineX, lineY, '-', color=rubberBandColor)
            self.zoomAxes.draw_artist(self.prevZoomRect[0])
            self.canvas.blit(self.zoomAxes.bbox)
            return

        # Use an Overlay to draw a rubberband-like bounding box.

        dc = wx.ClientDC(self.canvas)
        odc = wx.DCOverlay(self.wxoverlay, dc)
        odc.Clear()

        # Mac's DC is already the same as a GCDC, and it causes
        # problems with the overlay if we try to use an actual
        # wx.GCDC so don't try it.
        if 'wxMac' not in wx.PlatformInfo:
            dc = wx.GCDC(dc)

        height = self.canvas.figure.bbox.height
        y1 = height - y1
        y0 = height - y0

        if y1 < y0:
            y0, y1 = y1, y0
        if x1 < x0:
            x0, x1 = x1, x0

        w = x1 - x0
        h = y1 - y0
        rect = wx.Rect(x0, y0, w, h)

        rubberBandColor = '#C0C0FF'  # or load from config?

        # Set a pen for the border
        color = wx.Colour(rubberBandColor)
        dc.SetPen(wx.Pen(color, 1))

        # use the same color, plus alpha for the brush
        r, g, b, a = color.Get(True)
        color.Set(r, g, b, 0x60)
        dc.SetBrush(wx.Brush(color))
        dc.DrawRectangle(rect)
Example #18
Source File: backend_wx.py    From GraphicDesignPatternByPython with MIT License 4 votes vote down vote up 
def draw_rubberband(self, event, x0, y0, x1, y1):
        if self.retinaFix:  # On Macs, use the following code
            # wx.DCOverlay does not work properly on Retina displays.
            rubberBandColor = '#C0C0FF'
            if self.prevZoomRect:
                self.prevZoomRect.pop(0).remove()
            self.canvas.restore_region(self.savedRetinaImage)
            X0, X1 = self.zoomStartX, event.xdata
            Y0, Y1 = self.zoomStartY, event.ydata
            lineX = (X0, X0, X1, X1, X0)
            lineY = (Y0, Y1, Y1, Y0, Y0)
            self.prevZoomRect = self.zoomAxes.plot(
                lineX, lineY, '-', color=rubberBandColor)
            self.zoomAxes.draw_artist(self.prevZoomRect[0])
            self.canvas.blit(self.zoomAxes.bbox)
            return

        # Use an Overlay to draw a rubberband-like bounding box.

        dc = wx.ClientDC(self.canvas)
        odc = wx.DCOverlay(self.wxoverlay, dc)
        odc.Clear()

        # Mac's DC is already the same as a GCDC, and it causes
        # problems with the overlay if we try to use an actual
        # wx.GCDC so don't try it.
        if 'wxMac' not in wx.PlatformInfo:
            dc = wx.GCDC(dc)

        height = self.canvas.figure.bbox.height
        y1 = height - y1
        y0 = height - y0

        if y1 < y0:
            y0, y1 = y1, y0
        if x1 < x0:
            x0, x1 = x1, x0

        w = x1 - x0
        h = y1 - y0
        rect = wx.Rect(x0, y0, w, h)

        rubberBandColor = '#C0C0FF'  # or load from config?

        # Set a pen for the border
        color = wx.Colour(rubberBandColor)
        dc.SetPen(wx.Pen(color, 1))

        # use the same color, plus alpha for the brush
        r, g, b, a = color.Get(True)
        color.Set(r, g, b, 0x60)
        dc.SetBrush(wx.Brush(color))
        dc.DrawRectangle(rect)
Example #19
Source File: backend_wx.py    From coffeegrindsize with MIT License 4 votes vote down vote up 
def draw_rubberband(self, event, x0, y0, x1, y1):
        if self.retinaFix:  # On Macs, use the following code
            # wx.DCOverlay does not work properly on Retina displays.
            rubberBandColor = '#C0C0FF'
            if self.prevZoomRect:
                self.prevZoomRect.pop(0).remove()
            self.canvas.restore_region(self.savedRetinaImage)
            X0, X1 = self.zoomStartX, event.xdata
            Y0, Y1 = self.zoomStartY, event.ydata
            lineX = (X0, X0, X1, X1, X0)
            lineY = (Y0, Y1, Y1, Y0, Y0)
            self.prevZoomRect = self.zoomAxes.plot(
                lineX, lineY, '-', color=rubberBandColor)
            self.zoomAxes.draw_artist(self.prevZoomRect[0])
            self.canvas.blit(self.zoomAxes.bbox)
            return

        # Use an Overlay to draw a rubberband-like bounding box.

        dc = wx.ClientDC(self.canvas)
        odc = wx.DCOverlay(self.wxoverlay, dc)
        odc.Clear()

        # Mac's DC is already the same as a GCDC, and it causes
        # problems with the overlay if we try to use an actual
        # wx.GCDC so don't try it.
        if 'wxMac' not in wx.PlatformInfo:
            dc = wx.GCDC(dc)

        height = self.canvas.figure.bbox.height
        y1 = height - y1
        y0 = height - y0

        if y1 < y0:
            y0, y1 = y1, y0
        if x1 < x0:
            x0, x1 = x1, x0

        w = x1 - x0
        h = y1 - y0
        rect = wx.Rect(x0, y0, w, h)

        rubberBandColor = '#C0C0FF'  # or load from config?

        # Set a pen for the border
        color = wx.Colour(rubberBandColor)
        dc.SetPen(wx.Pen(color, 1))

        # use the same color, plus alpha for the brush
        r, g, b, a = color.Get(True)
        color.Set(r, g, b, 0x60)
        dc.SetBrush(wx.Brush(color))
        dc.DrawRectangle(rect)
Example #20
Source File: backend_wx.py    From CogAlg with MIT License 4 votes vote down vote up 
def draw_rubberband(self, event, x0, y0, x1, y1):
        if self.retinaFix:  # On Macs, use the following code
            # wx.DCOverlay does not work properly on Retina displays.
            rubberBandColor = '#C0C0FF'
            if self.prevZoomRect:
                self.prevZoomRect.pop(0).remove()
            self.canvas.restore_region(self.savedRetinaImage)
            X0, X1 = self.zoomStartX, event.xdata
            Y0, Y1 = self.zoomStartY, event.ydata
            lineX = (X0, X0, X1, X1, X0)
            lineY = (Y0, Y1, Y1, Y0, Y0)
            self.prevZoomRect = self.zoomAxes.plot(
                lineX, lineY, '-', color=rubberBandColor)
            self.zoomAxes.draw_artist(self.prevZoomRect[0])
            self.canvas.blit(self.zoomAxes.bbox)
            return

        # Use an Overlay to draw a rubberband-like bounding box.

        dc = wx.ClientDC(self.canvas)
        odc = wx.DCOverlay(self.wxoverlay, dc)
        odc.Clear()

        # Mac's DC is already the same as a GCDC, and it causes
        # problems with the overlay if we try to use an actual
        # wx.GCDC so don't try it.
        if 'wxMac' not in wx.PlatformInfo:
            dc = wx.GCDC(dc)

        height = self.canvas.figure.bbox.height
        y1 = height - y1
        y0 = height - y0

        if y1 < y0:
            y0, y1 = y1, y0
        if x1 < x0:
            x0, x1 = x1, x0

        w = x1 - x0
        h = y1 - y0
        rect = wx.Rect(x0, y0, w, h)

        rubberBandColor = '#C0C0FF'  # or load from config?

        # Set a pen for the border
        color = wx.Colour(rubberBandColor)
        dc.SetPen(wx.Pen(color, 1))

        # use the same color, plus alpha for the brush
        r, g, b, a = color.Get(True)
        color.Set(r, g, b, 0x60)
        dc.SetBrush(wx.Brush(color))
        dc.DrawRectangle(rect)
Example #21
Source File: backend_wx.py    From twitter-stock-recommendation with MIT License 4 votes vote down vote up 
def draw_rubberband(self, event, x0, y0, x1, y1):
        if self.retinaFix:  # On Macs, use the following code
            # wx.DCOverlay does not work properly on Retina displays.
            rubberBandColor = '#C0C0FF'
            if self.prevZoomRect:
                self.prevZoomRect.pop(0).remove()
            self.canvas.restore_region(self.savedRetinaImage)
            X0, X1 = self.zoomStartX, event.xdata
            Y0, Y1 = self.zoomStartY, event.ydata
            lineX = (X0, X0, X1, X1, X0)
            lineY = (Y0, Y1, Y1, Y0, Y0)
            self.prevZoomRect = self.zoomAxes.plot(
                lineX, lineY, '-', color=rubberBandColor)
            self.zoomAxes.draw_artist(self.prevZoomRect[0])
            self.canvas.blit(self.zoomAxes.bbox)
            return

        # Use an Overlay to draw a rubberband-like bounding box.

        dc = wx.ClientDC(self.canvas)
        odc = wx.DCOverlay(self.wxoverlay, dc)
        odc.Clear()

        # Mac's DC is already the same as a GCDC, and it causes
        # problems with the overlay if we try to use an actual
        # wx.GCDC so don't try it.
        if 'wxMac' not in wx.PlatformInfo:
            dc = wx.GCDC(dc)

        height = self.canvas.figure.bbox.height
        y1 = height - y1
        y0 = height - y0

        if y1 < y0:
            y0, y1 = y1, y0
        if x1 < x0:
            x0, x1 = x1, x0

        w = x1 - x0
        h = y1 - y0
        rect = wx.Rect(x0, y0, w, h)

        rubberBandColor = '#C0C0FF'  # or load from config?

        # Set a pen for the border
        color = wxc.NamedColour(rubberBandColor)
        dc.SetPen(wx.Pen(color, 1))

        # use the same color, plus alpha for the brush
        r, g, b, a = color.Get(True)
        color.Set(r, g, b, 0x60)
        dc.SetBrush(wx.Brush(color))
        if wxc.is_phoenix:
            dc.DrawRectangle(rect)
        else:
            dc.DrawRectangleRect(rect)
Example #22
Source File: backend_wx.py    From Mastering-Elasticsearch-7.0 with MIT License 4 votes vote down vote up 
def draw_rubberband(self, event, x0, y0, x1, y1):
        if self.retinaFix:  # On Macs, use the following code
            # wx.DCOverlay does not work properly on Retina displays.
            rubberBandColor = '#C0C0FF'
            if self.prevZoomRect:
                self.prevZoomRect.pop(0).remove()
            self.canvas.restore_region(self.savedRetinaImage)
            X0, X1 = self.zoomStartX, event.xdata
            Y0, Y1 = self.zoomStartY, event.ydata
            lineX = (X0, X0, X1, X1, X0)
            lineY = (Y0, Y1, Y1, Y0, Y0)
            self.prevZoomRect = self.zoomAxes.plot(
                lineX, lineY, '-', color=rubberBandColor)
            self.zoomAxes.draw_artist(self.prevZoomRect[0])
            self.canvas.blit(self.zoomAxes.bbox)
            return

        # Use an Overlay to draw a rubberband-like bounding box.

        dc = wx.ClientDC(self.canvas)
        odc = wx.DCOverlay(self.wxoverlay, dc)
        odc.Clear()

        # Mac's DC is already the same as a GCDC, and it causes
        # problems with the overlay if we try to use an actual
        # wx.GCDC so don't try it.
        if 'wxMac' not in wx.PlatformInfo:
            dc = wx.GCDC(dc)

        height = self.canvas.figure.bbox.height
        y1 = height - y1
        y0 = height - y0

        if y1 < y0:
            y0, y1 = y1, y0
        if x1 < x0:
            x0, x1 = x1, x0

        w = x1 - x0
        h = y1 - y0
        rect = wx.Rect(x0, y0, w, h)

        rubberBandColor = '#C0C0FF'  # or load from config?

        # Set a pen for the border
        color = wx.Colour(rubberBandColor)
        dc.SetPen(wx.Pen(color, 1))

        # use the same color, plus alpha for the brush
        r, g, b, a = color.Get(True)
        color.Set(r, g, b, 0x60)
        dc.SetBrush(wx.Brush(color))
        dc.DrawRectangle(rect)