如何得到RichTextCtrl里面每个文字的颜色
appletian520
|
1#
appletian520 发表于 2008-06-11 13:07
如何得到RichTextCtrl里面每个文字的颜色
最近在改装一个ticker,想达到里面的文字可以自由的设置字体!
当然选择richtextctrl 但是DEMo里面无法得知richtextctrl.GetValue()每个字的字体颜色! 请高手指教! #---------------------------------------------------------------------- # Name: wx.lib.ticker # Purpose: A news-ticker style scrolling text control # # Author: Chris Mellon # # Created: 29-Aug-2004 # RCS-ID: $Id: ticker.py 42816 2006-10-31 08:50:17Z RD $ # Copyright: (c) 2004 by Chris Mellon # Licence: wxWindows license #---------------------------------------------------------------------- """News-ticker style scrolling text control * Can scroll from right to left or left to right. * Speed of the ticking is controlled by two parameters: - Frames per Second(FPS): How many times per second the ticker updates - Pixels per Frame(PPF): How many pixels the text moves each update Low FPS with high PPF will result in "jumpy" text, lower PPF with higher FPS is smoother (but blurrier and more CPU intensive) text. """ import wx import wx.richtext as rt #---------------------------------------------------------------------- global i i=0 class Ticker(wx.PyControl): def __init__(self, parent, id=-1, text=wx.EmptyString, #text in the ticker #text=wx.richtext, fgcolor = wx.BLACK, #text/foreground color bgcolor = wx.WHITE, #background color start=True, #if True, the ticker starts immediately ppf=1, #pixels per frame fps=1000, #frames per second direction="rtl", #direction of ticking, rtl or ltr pos=wx.DefaultPosition, size=(400,200), style=wx.NO_BORDER, name="Ticker" ): wx.PyControl.__init__(self, parent, id=id, pos=pos, size=size, style=style, name=name) self.timer = wx.Timer(owner=self) self._extent = (-1, -1) #cache value for the GetTextExtent call self._offset = 0 self._fps = fps #frames per second self._ppf = ppf #pixels per frame self.SetDirection(direction) self.SetText(text) self.SetInitialSize(size) self.SetForegroundColour(fgcolor) self.SetBackgroundColour(bgcolor) self.rtc = rt.RichTextCtrl(self, style=wx.VSCROLL|wx.HSCROLL|wx.NO_BORDER) self.rtc.Hide() self.a=rt.TextAttrEx() self.b=rt.TextAttrEx() self.a.SetTextColour((0,255,255)) self.rtc.BeginStyle(self.a) self.rtc.WriteText("123456789") self.rtc.EndStyle() self.b.SetTextColour((255,0,0)) self.rtc.BeginStyle(self.b) self.rtc.WriteText("0987654321") self.rtc.EndStyle() self.text1=self.rtc.GetValue() self.SetText(self.text1) wx.EVT_TIMER(self, -1, self.OnTick) wx.EVT_PAINT(self, self.OnPaint) wx.EVT_ERASE_BACKGROUND(self, self.OnErase) if start: self.Start() def Stop(self): """Stop moving the text""" self.timer.Stop() def Start(self): """Starts the text moving""" if not self.timer.IsRunning(): self.timer.Start(1000 / self._fps) def IsTicking(self): """Is the ticker ticking? ie, is the text moving?""" return self.timer.IsRunning() def SetFPS(self, fps): """Adjust the update speed of the ticker""" self._fps = fps self.Stop() self.Start() def GetFPS(self): """Update speed of the ticker""" return self._fps def SetPPF(self, ppf): """Set the number of pixels per frame the ticker moves - ie, how "jumpy" it is""" self._ppf = ppf def GetPPF(self): """Pixels per frame""" return self._ppf def SetFont(self, font): self._extent = (-1, -1) wx.Control.SetFont(self, font) def SetDirection(self, dir): """Sets the direction of the ticker: right to left(rtl) or left to right (ltr)""" if dir == "ltr" or dir == "rtl": if self._offset <> 0: #Change the offset so it's correct for the new direction self._offset = self._extent[0] + self.GetSize()[0] - self._offset self._dir = dir else: raise TypeError def GetDirection(self): return self._dir def SetText(self, text): """Set the ticker text.""" self._text = text self._extent = (-1, -1) if not self._text: self.Refresh() #Refresh here to clear away the old text. def GetText(self): return self._text def UpdateExtent(self, dc): """Updates the cached text extent if needed""" if not self._text: self._extent = (-1, -1) return if self._extent == (-1, -1): self._extent = dc.GetTextExtent(self.GetText()) def DrawText(self, dc): """Draws the ticker text at the current offset using the provided DC""" ## ## if self.text1 in self.text1[0:4]: ## dc.SetTextForeground(self.a.GetTextColour()) ## else: ## dc.SetTextForeground(self.b.GetTextColour()) dc.SetFont(self.GetFont()) self.UpdateExtent(dc) if self._dir == "ltr": offx = self._offset - self._extent[0] else: offx = self.GetSize()[0] - self._offset offy = (self.GetSize()[1] - self._extent[1]) / 2 #dc.SetTextForeground(self.GetForegroundColour()) dc.SetTextForeground(self.a.GetTextColour()) dc.DrawText(self._text[0:9], offx, offy) dc.SetTextForeground(self.b.GetTextColour()) dc.DrawText(self._text[9:], offx+self.GetTextExtent(self._text[0:9])[0], offy) def OnTick(self, evt): self._offset += self._ppf w1 = self.GetSize()[0] w2 = self._extent[0] if self._offset >= w1+w2: self._offset = 0 self.Refresh() def OnPaint(self, evt): dc = wx.BufferedPaintDC(self) brush = wx.Brush(self.GetBackgroundColour()) dc.SetBackground(brush) dc.Clear() self.DrawText(dc) #dc.update() def OnErase(self, evt): """Noop because of double buffering""" pass def AcceptsFocus(self): """Non-interactive, so don't accept focus""" return False def DoGetBestSize(self): """Width we don't care about, height is either -1, or the character height of our text with a little extra padding """ if self._extent == (-1, -1): if not self._text: h = self.GetCharHeight() else: h = self.GetTextExtent(self.GetText())[1] else: h = self._extent[1] return (100, h+5) def ShouldInheritColours(self): """Don't get colours from our parent...""" return True #testcase/demo if __name__ == '__main__': app = wx.PySimpleApp() f = wx.Frame(None) p = wx.Panel(f) t = Ticker(p, text='ccccccccccc') #set ticker properties here if you want s = wx.BoxSizer(wx.VERTICAL) s.Add(t, flag=wx.GROW, proportion=0) p.SetSizer(s) f.Show() app.MainLoop() |