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84 lines
1.8 KiB
Python
84 lines
1.8 KiB
Python
#!/usr/bin/env python
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"""
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This demo shows how to use a ScaledBitmap2 (which is like a scaled bitmap,
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but uses memory more efficiently for large images and high zoom levels.)
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"""
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## Set a path to an Image file here:
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ImageFile = "white_tank.jpg"
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import wx
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import random
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## import the installed version
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from wx.lib.floatcanvas import NavCanvas, FloatCanvas
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## import a local version
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#import sys
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#sys.path.append("../")
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#from floatcanvas import NavCanvas, FloatCanvas
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class DrawFrame(wx.Frame):
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"""
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A frame used for the FloatCanvas Demo
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"""
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def __init__(self, *args, **kwargs):
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wx.Frame.__init__(self, *args, **kwargs)
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self.CreateStatusBar()
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# Add the Canvas
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Canvas = NavCanvas.NavCanvas(self,
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ProjectionFun = None,
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BackgroundColor = "DARK SLATE BLUE",
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).Canvas
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Canvas.MaxScale=20 # sets the maximum zoom level
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self.Canvas = Canvas
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self.Canvas.Bind(FloatCanvas.EVT_MOTION, self.OnMove )
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# create the image:
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image = wx.Image(ImageFile)
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self.width, self.height = image.GetSize()
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img = FloatCanvas.ScaledBitmap2( image,
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(0,0),
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Height=image.GetHeight(),
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Position = 'tl',
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)
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Canvas.AddObject(img)
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self.Show()
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Canvas.ZoomToBB()
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def OnMove(self, event):
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"""
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Updates the status bar with the world coordinates
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"""
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self.SetStatusText("%i, %i"%tuple(event.Coords))
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app = wx.App(False)
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F = DrawFrame(None, title="FloatCanvas Demo App", size=(700,700) )
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app.MainLoop()
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