in the code below I have simple test application to generate dynamic lines of panels to main scrolledpanel when the button ‘generate lines is clicked’;each panel has RichTextCtrl shows text referring to the panel(line) number.after 5 or 6 lines addition and when the scrollbar come into view
, the application will showing only blank panels without RichTextCtrl inside …and I have no idea about reason(s):
import wx.lib.scrolledpanel as SP
import wx.richtext as rtc
import wx
class P(SP.ScrolledPanel):
def __init__(self,parent,SIZE, *args, **kwds):
SP.ScrolledPanel.__init__(self,parent,size=SIZE, *args, **kwds)
self.rtcSTORE={}
self.lines={}
self.LINES_counter=1
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.AlwaysShowScrollbars(horz=False)
def add_line(self):
self.SetupScrolling(scroll_y=True,scroll_x= False,rate_x=0,rate_y=1,scrollToTop=False)
line=wx.Panel(self,size=(self.GetSize()[0]-5,75))
self.lines[self.LINES_counter]=line
self.sizer.Add(line,0,wx.ALIGN_CENTRE,2)
self.SetSizer(self.sizer)
self.Layout()
self.construct_line()
self.ScrollChildIntoView(self.lines[self.LINES_counter])
self.LINES_counter+=1
self.ClearBackground()
self.Refresh()
def construct_line(self):
self.inner_line_sizer=wx.BoxSizer(wx.VERTICAL)
self.msg_=wx.Panel(self.lines[self.LINES_counter],size=(self.lines[self.LINES_counter].GetSize()[0],50))
self.msg_.SetBackgroundColour('blue')
self.inner_line_sizer.Add(self.msg_,0,wx.EXPAND)
self.lines[self.LINES_counter].SetSizer(self.inner_line_sizer)
self.lines[self.LINES_counter].Layout()
self.lines[self.LINES_counter].Refresh()
···
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self.rtcSTORE[self.LINES_counter]=rtc.RichTextCtrl(self.msg_, size=self.msg_.GetSize(),style=rtc.RE_MULTILINE|wx.EXPAND)
self.rtcSTORE[self.LINES_counter].ApplyAlignmentToSelection(wx.TEXT_ALIGNMENT_CENTER)
self.rtcSTORE[self.LINES_counter].SetBackgroundColour('yellow')
self.rtcSTORE[self.LINES_counter].WriteText('this is line number '+str(self.LINES_counter))
self.rtcSTORE[self.LINES_counter].SetFocus()
self.msg_.Layout()
self.msg_.Refresh()
class application(wx.Frame):
def __init__(self, *args, **kwds):
wx.Frame.__init__(self, *args, **kwds)
sizer = wx.BoxSizer(wx.VERTICAL)
self.p =P(self,(460,400))
self.box2=wx.Panel(self,size=(300,100))
self.box2.SetBackgroundColour("gray")
sizer.Add(self.p)
sizer.Add(self.box2,wx.EXPAND)
self.b=wx.Button(self.box2,label='generate lines',size=(120,60),pos=(50,50))
self.SetSizer(sizer)
self.Layout()
self.Refresh()
self.SetSize((600, 600))
self.Bind(wx.EVT_BUTTON,self.add_line,self.b)
def add_line(self,e):
e.Skip()
self.p.add_line()
if __name__ == '__main__':
app = wx.App()
dialog = application(None, -1)
dialog.Show()
app.MainLoop()
