X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/217cb2fab89bd023fbe873cc9b006fe4ac6f1b1f..61940a7061d0b5d5122b1e1e939cfa2d72596999:/wxPython/demo/wxScrolledWindow.py diff --git a/wxPython/demo/wxScrolledWindow.py b/wxPython/demo/wxScrolledWindow.py index c3163fcaa7..753835e374 100644 --- a/wxPython/demo/wxScrolledWindow.py +++ b/wxPython/demo/wxScrolledWindow.py @@ -1,34 +1,51 @@ +# 11/12/2003 - Jeff Grimmett (grimmtooth@softhome.net) +# +# o Updated for wx namespace +# o Rudimentary overview doc added. +# -from wxPython.wx import * +import wx -import images +import images + +BUFFERED = 1 #--------------------------------------------------------------------------- -class MyCanvas(wxScrolledWindow): - def __init__(self, parent, id = -1, size = wxDefaultSize): - wxScrolledWindow.__init__(self, parent, id, wxPoint(0, 0), size, wxSUNKEN_BORDER) +class MyCanvas(wx.ScrolledWindow): + def __init__(self, parent, id = -1, size = wx.DefaultSize): + wx.ScrolledWindow.__init__(self, parent, id, (0, 0), size=size, style=wx.SUNKEN_BORDER) self.lines = [] self.maxWidth = 1000 self.maxHeight = 1000 + self.x = self.y = 0 + self.curLine = [] + self.drawing = False - self.SetBackgroundColour(wxNamedColor("WHITE")) - EVT_LEFT_DOWN(self, self.OnLeftButtonEvent) - EVT_LEFT_UP(self, self.OnLeftButtonEvent) - EVT_MOTION(self, self.OnLeftButtonEvent) - - EVT_PAINT(self, self.OnPaint) - - - self.SetCursor(wxStockCursor(wxCURSOR_PENCIL)) + self.SetBackgroundColour("WHITE") + self.SetCursor(wx.StockCursor(wx.CURSOR_PENCIL)) bmp = images.getTest2Bitmap() - mask = wxMaskColour(bmp, wxBLUE) + mask = wx.MaskColour(bmp, wx.BLUE) bmp.SetMask(mask) self.bmp = bmp self.SetScrollbars(20, 20, self.maxWidth/20, self.maxHeight/20) + if BUFFERED: + # Initialize the buffer bitmap. No real DC is needed at this point. + self.buffer = wx.EmptyBitmap(self.maxWidth, self.maxHeight) + dc = wx.BufferedDC(None, self.buffer) + dc.SetBackground(wx.Brush(self.GetBackgroundColour())) + dc.Clear() + self.DoDrawing(dc) + + self.Bind(wx.EVT_LEFT_DOWN, self.OnLeftButtonEvent) + self.Bind(wx.EVT_LEFT_UP, self.OnLeftButtonEvent) + self.Bind(wx.EVT_MOTION, self.OnLeftButtonEvent) + self.Bind(wx.EVT_PAINT, self.OnPaint) + + def getWidth(self): return self.maxWidth @@ -37,70 +54,101 @@ class MyCanvas(wxScrolledWindow): def OnPaint(self, event): - dc = wxPaintDC(self) - self.PrepareDC(dc) - self.DoDrawing(dc) + if BUFFERED: + # Create a buffered paint DC. It will create the real + # wx.PaintDC and then blit the bitmap to it when dc is + # deleted. Since we don't need to draw anything else + # here that's all there is to it. + dc = wx.BufferedPaintDC(self, self.buffer) + else: + dc = wx.PaintDC(self) + self.PrepareDC(dc) + # since we're not buffering in this case, we have to + # paint the whole window, potentially very time consuming. + self.DoDrawing(dc) - def DoDrawing(self, dc): + def DoDrawing(self, dc, printing=False): dc.BeginDrawing() - dc.SetPen(wxPen(wxNamedColour('RED'))) - dc.DrawRectangle(5, 5, 50, 50) + dc.SetPen(wx.Pen('RED')) + dc.DrawRectangle((5, 5), (50, 50)) - dc.SetBrush(wxLIGHT_GREY_BRUSH) - dc.SetPen(wxPen(wxNamedColour('BLUE'), 4)) - dc.DrawRectangle(15, 15, 50, 50) + dc.SetBrush(wx.LIGHT_GREY_BRUSH) + dc.SetPen(wx.Pen('BLUE', 4)) + dc.DrawRectangle((15, 15), (50, 50)) - dc.SetFont(wxFont(14, wxSWISS, wxNORMAL, wxNORMAL)) - dc.SetTextForeground(wxColour(0xFF, 0x20, 0xFF)) + dc.SetFont(wx.Font(14, wx.SWISS, wx.NORMAL, wx.NORMAL)) + dc.SetTextForeground(wx.Colour(0xFF, 0x20, 0xFF)) te = dc.GetTextExtent("Hello World") - dc.DrawText("Hello World", 60, 65) + dc.DrawText("Hello World", (60, 65)) - dc.SetPen(wxPen(wxNamedColour('VIOLET'), 4)) - dc.DrawLine(5, 65+te[1], 60+te[0], 65+te[1]) + dc.SetPen(wx.Pen('VIOLET', 4)) + dc.DrawLine((5, 65+te[1]), (60+te[0], 65+te[1])) lst = [(100,110), (150,110), (150,160), (100,160)] dc.DrawLines(lst, -60) - dc.SetPen(wxGREY_PEN) + dc.SetPen(wx.GREY_PEN) dc.DrawPolygon(lst, 75) - dc.SetPen(wxGREEN_PEN) + dc.SetPen(wx.GREEN_PEN) dc.DrawSpline(lst+[(100,100)]) - dc.DrawBitmap(self.bmp, 200, 20, true) - dc.SetTextForeground(wxColour(0, 0xFF, 0x80)) - dc.DrawText("a bitmap", 200, 85) - - font = wxFont(20, wxSWISS, wxNORMAL, wxNORMAL) - dc.SetFont(font) - dc.SetTextForeground(wxBLACK) - for a in range(0, 360, 45): - dc.DrawRotatedText("Rotated text...", 300, 300, a) + dc.DrawBitmap(self.bmp, (200, 20), True) + dc.SetTextForeground(wx.Colour(0, 0xFF, 0x80)) + dc.DrawText("a bitmap", (200, 85)) - dc.SetPen(wxTRANSPARENT_PEN) - dc.SetBrush(wxBLUE_BRUSH) - dc.DrawRectangle(50,500,50,50) - dc.DrawRectangle(100,500,50,50) +## dc.SetFont(wx.Font(14, wx.SWISS, wx.NORMAL, wx.NORMAL)) +## dc.SetTextForeground("BLACK") +## dc.DrawText("TEST this STRING", (10, 200)) +## print dc.GetFullTextExtent("TEST this STRING") - dc.SetPen(wxPen(wxNamedColour('RED'))) - dc.DrawEllipticArc(200, 500, 50, 75, 0, 90) - - y = 20 - for style in [wxDOT, wxLONG_DASH, wxSHORT_DASH, wxDOT_DASH, wxUSER_DASH]: - pen = wxPen("DARK ORCHID", 1, style) - if style == wxUSER_DASH: - pen.SetDashes([0, 1, 2, 3, 4, 5, 6, 7, 8]) - dc.SetPen(pen) - dc.DrawLine(300, y, 400, y) - y = y + 10 + font = wx.Font(20, wx.SWISS, wx.NORMAL, wx.NORMAL) + dc.SetFont(font) + dc.SetTextForeground(wx.BLACK) + for a in range(0, 360, 45): + dc.DrawRotatedText("Rotated text...", (300, 300), a) + + dc.SetPen(wx.TRANSPARENT_PEN) + dc.SetBrush(wx.BLUE_BRUSH) + dc.DrawRectangle((50,500),(50,50)) + dc.DrawRectangle((100,500),(50,50)) + + dc.SetPen(wx.Pen('RED')) + dc.DrawEllipticArc((200, 500), (50, 75), 0, 90) + + if not printing: + # This has troubles when used on a print preview in wxGTK, + # probably something to do with the pen styles and the scaling + # it does... + y = 20 + + for style in [wx.DOT, wx.LONG_DASH, wx.SHORT_DASH, wx.DOT_DASH, wx.USER_DASH]: + pen = wx.Pen("DARK ORCHID", 1, style) + if style == wx.USER_DASH: + pen.SetCap(wx.CAP_BUTT) + pen.SetDashes([1,2]) + pen.SetColour("RED") + dc.SetPen(pen) + dc.DrawLine((300, y), (400, y)) + y = y + 10 + + dc.SetBrush(wx.TRANSPARENT_BRUSH) + dc.SetPen(wx.Pen(wx.Colour(0xFF, 0x20, 0xFF), 1, wx.SOLID)) + dc.DrawRectangle((450, 50), (100, 100)) + old_pen = dc.GetPen() + new_pen = wx.Pen("BLACK", 5) + dc.SetPen(new_pen) + dc.DrawRectangle((470, 70), (60, 60)) + dc.SetPen(old_pen) + dc.DrawRectangle((490, 90), (20, 20)) self.DrawSavedLines(dc) dc.EndDrawing() - def DrawSavedLines(self, dc): - dc.SetPen(wxPen(wxNamedColour('MEDIUM FOREST GREEN'), 4)) + dc.SetPen(wx.Pen('MEDIUM FOREST GREEN', 4)) + for line in self.lines: for coords in line: apply(dc.DrawLine, coords) @@ -117,36 +165,50 @@ class MyCanvas(wxScrolledWindow): def OnLeftButtonEvent(self, event): if event.LeftDown(): + self.SetFocus() self.SetXY(event) self.curLine = [] self.CaptureMouse() + self.drawing = True + + elif event.Dragging() and self.drawing: + if BUFFERED: + # If doing buffered drawing, create the buffered DC, giving it + # it a real DC to blit to when done. + cdc = wx.ClientDC(self) + self.PrepareDC(cdc) + dc = wx.BufferedDC(cdc, self.buffer) + else: + dc = wx.ClientDC(self) + self.PrepareDC(dc) - elif event.Dragging(): - dc = wxClientDC(self) - self.PrepareDC(dc) dc.BeginDrawing() - dc.SetPen(wxPen(wxNamedColour('MEDIUM FOREST GREEN'), 4)) - coords = (self.x, self.y) + self.ConvertEventCoords(event) + dc.SetPen(wx.Pen('MEDIUM FOREST GREEN', 4)) + coords = [(self.x, self.y) , self.ConvertEventCoords(event)] self.curLine.append(coords) apply(dc.DrawLine, coords) self.SetXY(event) dc.EndDrawing() - elif event.LeftUp(): + + elif event.LeftUp() and self.drawing: self.lines.append(self.curLine) self.curLine = [] self.ReleaseMouse() + self.drawing = False ## This is an example of what to do for the EVT_MOUSEWHEEL event, ## but since wxScrolledWindow does this already it's not -## necessary to do it ourselves. +## necessary to do it ourselves. You would need to add an event table +## entry to __init__() to direct wheelmouse events to this handler. ## wheelScroll = 0 ## def OnWheel(self, evt): ## delta = evt.GetWheelDelta() ## rot = evt.GetWheelRotation() ## linesPer = evt.GetLinesPerAction() +## print delta, rot, linesPer ## ws = self.wheelScroll ## ws = ws + rot ## lines = ws / delta @@ -168,15 +230,19 @@ def runTest(frame, nb, log): +overview = """ + + +The wx.ScrolledWindow class manages scrolling for its client area, transforming the +coordinates according to the scrollbar positions, and setting the scroll positions, +thumb sizes and ranges according to the area in view. + + +""" +if __name__ == '__main__': + import sys,os + import run + run.main(['', os.path.basename(sys.argv[0])]) - - - - - - - -overview = """\ -"""