wxPython (wxWidgets)：如何自定义滚动条的外观？

Question

我找到了样式选项卡（笔记本）、菜单、windows、表单和许多其他样式的示例，但没有看到滚动条的任何示例。任何人都可以展示或提示有关此的内容吗？我有创建带有滑块和箭头的特殊 wxPanel 的想法，但我不知道是否可以通过在面板内拖动和单击来隐藏系统滚动条和移动内容？

Answer 1

我认为最接近你想要做的是wx.lib.dragscroller。

这是您在官方网站的 wxPython 演示中找到的示例：

import wx
import wx.lib.dragscroller

#-------------------------------------------------------------------------------

def runTest(frame, nb, log):
    win = DragScrollerExample(nb, -1)
    return win

class DragScrollerExample(wx.ScrolledWindow):
    def __init__(self, parent, id=-1):
        wx.ScrolledWindow.__init__(self, parent, id)
        self.Bind(wx.EVT_PAINT, self.OnPaint)
        self.Bind(wx.EVT_RIGHT_DOWN, self.OnRightDown)
        self.Bind(wx.EVT_RIGHT_UP, self.OnRightUp)

        self.SetScrollbars(1, 1, 2000, 2000, 0, 0)

        self.scroller = wx.lib.dragscroller.DragScroller(self)

    def OnPaint(self, event):
        dc = wx.PaintDC(self)
        self.DoPrepareDC(dc)

        pen = wx.Pen(wx.BLACK, 5)
        dc.SetPen(pen)

        for y in range(10):
            for x in range(10):
                dc.DrawCircle(x*400+20, y*400+20, 200)

        dc.DrawText('Right click and drag in the direction you want to scroll.',
                    20, 20)
        dc.DrawText('The distance from the start of the drag determines the speed.',                
                    20, 50)

    def OnRightDown(self, event):
        self.scroller.Start(event.GetPosition())

    def OnRightUp(self, event):
        self.scroller.Stop()


#-------------------------------------------------------------------------------

overview = """<html><body>
<h2>DragScroller</h2>
<p>
A helper class that adds scrolling to a wx.ScrolledWindow in the direction
of the drag.
</body></html>
"""

if __name__ == '__main__':
    import sys,os
    import run
    run.main(['', os.path.basename(sys.argv[0])])

wxPython (wxWidgets)：如何自定义滚动条的外观？

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wxwidgets

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