c127177f8d
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2325 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
123 lines
3.3 KiB
Python
123 lines
3.3 KiB
Python
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from wxPython.wx import *
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#---------------------------------------------------------------------------
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class MyCanvas(wxScrolledWindow):
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def __init__(self, parent):
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wxScrolledWindow.__init__(self, parent, -1, wxPoint(0, 0), wxPyDefaultSize, wxSUNKEN_BORDER)
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self.lines = []
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self.SetBackgroundColour(wxNamedColor("WHITE"))
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self.Connect(-1, -1, wxEVT_LEFT_DOWN, self.OnLeftButtonEvent)
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self.Connect(-1, -1, wxEVT_LEFT_UP, self.OnLeftButtonEvent)
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self.Connect(-1, -1, wxEVT_MOTION, self.OnLeftButtonEvent)
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self.SetCursor(wxStockCursor(wxCURSOR_PENCIL))
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#bmp = wxBitmap('bitmaps/image.bmp', wxBITMAP_TYPE_BMP)
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#self.bmp = bmp
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self.SetScrollbars(20, 20, 50, 50)
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def OnPaint(self, event):
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dc = wxPaintDC(self)
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self.PrepareDC(dc)
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self.DoDrawing(dc)
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def DoDrawing(self, dc):
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dc.BeginDrawing()
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#dc.Clear()
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pen1 = wxPen(wxNamedColour('RED'))
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dc.SetPen(pen1)
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dc.DrawRectangle(5, 5, 50, 50)
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dc.SetBrush(wxLIGHT_GREY_BRUSH)
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dc.SetPen(wxPen(wxNamedColour('BLUE'), 4))
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dc.DrawRectangle(15, 15, 50, 50)
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font = wxFont(14, wxSWISS, wxNORMAL, wxNORMAL)
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dc.SetFont(font)
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dc.SetTextForeground(wxColour(0xFF, 0x20, 0xFF))
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te = dc.GetTextExtent("Hello World")
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dc.DrawText("Hello World", 60, 65)
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dc.SetPen(wxPen(wxNamedColour('VIOLET'), 4))
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dc.DrawLine(5, 65+te[1], 60+te[0], 65+te[1])
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lst = [(100,110), (150,110), (150,160), (100,160)]
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dc.DrawLines(lst, -60)
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dc.SetPen(wxGREY_PEN)
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dc.DrawPolygon(lst, 75)
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dc.SetPen(wxGREEN_PEN)
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dc.DrawSpline(lst+[(100,100)])
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#dc.DrawBitmap(self.bmp, 200, 20)
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#dc.SetTextForeground(wxColour(0, 0xFF, 0x80))
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#dc.DrawText("a bitmap", 200, 80)
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self.DrawSavedLines(dc)
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dc.EndDrawing()
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def DrawSavedLines(self, dc):
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dc.SetPen(wxPen(wxNamedColour('MEDIUM FOREST GREEN'), 4))
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for line in self.lines:
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for coords in line:
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apply(dc.DrawLine, coords)
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def SetXY(self, event):
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self.x, self.y = self.ConvertEventCoords(event)
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def ConvertEventCoords(self, event):
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xView, yView = self.ViewStart()
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xDelta, yDelta = self.GetScrollPixelsPerUnit()
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return (event.GetX() + (xView * xDelta),
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event.GetY() + (yView * yDelta))
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def OnLeftButtonEvent(self, event):
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if event.LeftDown():
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self.SetXY(event)
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self.curLine = []
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elif event.Dragging():
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dc = wxClientDC(self)
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self.PrepareDC(dc)
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dc.BeginDrawing()
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dc.SetPen(wxPen(wxNamedColour('MEDIUM FOREST GREEN'), 4))
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coords = (self.x, self.y) + self.ConvertEventCoords(event)
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self.curLine.append(coords)
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apply(dc.DrawLine, coords)
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self.SetXY(event)
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dc.EndDrawing()
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elif event.LeftUp():
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self.lines.append(self.curLine)
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self.curLine = []
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#---------------------------------------------------------------------------
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def runTest(frame, nb, log):
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win = MyCanvas(nb)
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return win
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#---------------------------------------------------------------------------
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overview = """\
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"""
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