Sco*_*t B 7 python static wxpython
我遇到了wxPython的问题.下面发布了代码的简化版本(删除了空格,注释等以减小大小 - 但我的程序的一般格式保持大致相同).当我运行脚本时,静态文本正确地包装,但面板中的其他项不会向下移动(它们就好像静态文本只有一行,因此并不是所有内容都可见).如果我手动调整窗口/框架的大小,即使只是很小的数量,一切都会得到纠正并按原样显示.我拍摄了屏幕截图来显示这种行为,但我刚创建了这个帐户,因此没有必要的10个声望点可以发布图片.
为什么开始时显示不正确？我尝试了GetParent().Refresh()或Update()和GetTopLevelParent().Update()或Refresh()的各种组合.我已经尝试了所有我能想到的但却无法在不手动调整框架/窗口大小的情况下正确显示它.一旦重新调整大小,它就会按照我的要求运行.
信息:
Windows XP
Python 2.5.2
wxPython 2.8.11.0(msw-unicode)
有什么建议？谢谢!
码:
#! /usr/bin/python
import wx
class StaticWrapText(wx.PyControl):
def __init__(self, parent, id=wx.ID_ANY, label='', pos=wx.DefaultPosition,
size=wx.DefaultSize, style=wx.NO_BORDER,
validator=wx.DefaultValidator, name='StaticWrapText'):
wx.PyControl.__init__(self, parent, id, pos, size, style, validator, name)
self.statictext = wx.StaticText(self, wx.ID_ANY, label, style=style)
self.wraplabel = label
#self.wrap()
def wrap(self):
self.Freeze()
self.statictext.SetLabel(self.wraplabel)
self.statictext.Wrap(self.GetSize().width)
self.Thaw()
def DoGetBestSize(self):
self.wrap()
#print self.statictext.GetSize()
self.SetSize(self.statictext.GetSize())
return self.GetSize()
class TestPanel(wx.Panel):
def __init__(self, *args, **kwargs):
# Init the base class
wx.Panel.__init__(self, *args, **kwargs)
self.createControls()
def createControls(self):
# --- Panel2 -------------------------------------------------------------
self.Panel2 = wx.Panel(self, -1)
msg1 = 'Below is a List of Files to be Processed'
staticBox = wx.StaticBox(self.Panel2, label=msg1)
Panel2_box1_v1 = wx.StaticBoxSizer(staticBox, wx.VERTICAL)
Panel2_box2_h1 = wx.BoxSizer(wx.HORIZONTAL)
Panel2_box3_v1 = wx.BoxSizer(wx.VERTICAL)
self.wxL_Inputs = wx.ListBox(self.Panel2, wx.ID_ANY, style=wx.LB_EXTENDED)
sz = dict(size=(120,-1))
wxB_AddFile = wx.Button(self.Panel2, label='Add File', **sz)
wxB_DeleteFile = wx.Button(self.Panel2, label='Delete Selected', **sz)
wxB_ClearFiles = wx.Button(self.Panel2, label='Clear All', **sz)
Panel2_box3_v1.Add(wxB_AddFile, 0, wx.TOP, 0)
Panel2_box3_v1.Add(wxB_DeleteFile, 0, wx.TOP, 0)
Panel2_box3_v1.Add(wxB_ClearFiles, 0, wx.TOP, 0)
Panel2_box2_h1.Add(self.wxL_Inputs, 1, wx.ALL|wx.EXPAND, 2)
Panel2_box2_h1.Add(Panel2_box3_v1, 0, wx.ALL|wx.EXPAND, 2)
msg = 'This is a long line of text used to test the autowrapping '
msg += 'static text message. '
msg += 'This is a long line of text used to test the autowrapping '
msg += 'static text message. '
msg += 'This is a long line of text used to test the autowrapping '
msg += 'static text message. '
msg += 'This is a long line of text used to test the autowrapping '
msg += 'static text message. '
staticMsg = StaticWrapText(self.Panel2, label=msg)
Panel2_box1_v1.Add(staticMsg, 0, wx.ALL|wx.EXPAND, 2)
Panel2_box1_v1.Add(Panel2_box2_h1, 1, wx.ALL|wx.EXPAND, 0)
self.Panel2.SetSizer(Panel2_box1_v1)
# --- Combine Everything -------------------------------------------------
final_vbox = wx.BoxSizer(wx.VERTICAL)
final_vbox.Add(self.Panel2, 1, wx.ALL|wx.EXPAND, 2)
self.SetSizerAndFit(final_vbox)
class TestFrame(wx.Frame):
def __init__(self, *args, **kwargs):
# Init the base class
wx.Frame.__init__(self, *args, **kwargs)
panel = TestPanel(self)
self.SetClientSize(wx.Size(500,500))
self.Center()
class wxFileCleanupApp(wx.App):
def __init__(self, *args, **kwargs):
# Init the base class
wx.App.__init__(self, *args, **kwargs)
def OnInit(self):
# Create the frame, center it, and show it
frame = TestFrame(None, title='Test Frame')
frame.Show()
return True
if __name__ == '__main__':
app = wxFileCleanupApp()
app.MainLoop()
编辑:
请参阅下面的帖子,了解有效的解决方案!
使用 Mike Driscoll 的代码作为基线，我希望这能说明我的问题。使用“txt”有两种不同的版本。以下是我希望你尝试的三件事：
按原样运行它。使用我的 StaticWrapText。它起初显示错误，但重新调整窗口大小，它完全按照我的意愿工作。“按钮”之前的文本下方没有空白/浪费的空间
更改这两行（更改注释）：
txt = wx.StaticText(panel, label=text)
#txt = StaticWrapText(panel, label=text)
现在您将看到没有换行，并且文本始终只有一行. 绝对不是我们想要的。这是因为 "sizer.Add(txt, 0, wx.EXPAND, 5) "...所以继续第 3 部分...
保留第 2 部分的更改，并将：
sizer.Add(txt, 0, wx.EXPAND, 5)
更改为：
sizer.Add(txt, 1, wx.EXPAND, 5)
所以现在静态文本将展开。这是接近工作...但我不希望文本和按钮之间的所有浪费空间。如果你把窗户做得大，就会浪费很多空间。重新调整窗口大小后，请参阅第 1 部分以查看差异。
代码：
import wx
class StaticWrapText(wx.PyControl):
def __init__(self, parent, id=wx.ID_ANY, label='', pos=wx.DefaultPosition,
size=wx.DefaultSize, style=wx.NO_BORDER,
validator=wx.DefaultValidator, name='StaticWrapText'):
wx.PyControl.__init__(self, parent, id, pos, size, style, validator, name)
self.statictext = wx.StaticText(self, wx.ID_ANY, label, style=style)
self.wraplabel = label
#self.wrap()
def wrap(self):
self.Freeze()
self.statictext.SetLabel(self.wraplabel)
self.statictext.Wrap(self.GetSize().width)
self.Thaw()
def DoGetBestSize(self):
self.wrap()
#print self.statictext.GetSize()
self.SetSize(self.statictext.GetSize())
return self.GetSize()
class MyForm(wx.Frame):
def __init__(self):
wx.Frame.__init__(self, None, wx.ID_ANY, "Tutorial")
# Add a panel so it looks the correct on all platforms
panel = wx.Panel(self, wx.ID_ANY)
text = "I'm subclasses the statictext because I want it to act exactly like a static text, but correctly wordwrap as needed. I've found several examples of it on the web, but none that worked how I wanted. The wordwrap makes it look much nicer when the user may decide to re-size the window, so I would definitely like to have it be wordwrapped. I know about the wx.lib.wordwrap, but chose to use the built in Wrap function of the statictext control instead. It basically does the same thing from what I understand."
#txt = wx.StaticText(panel, label=text)
txt = StaticWrapText(panel, label=text)
wxbutton = wx.Button(panel, label='Button', size=wx.Size(120,50))
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(txt, 0, wx.EXPAND, 5)
sizer.Add(wxbutton, 1, wx.EXPAND, 5)
panel.SetSizer(sizer)
# Run the program
if __name__ == "__main__":
app = wx.PySimpleApp()
frame = MyForm().Show()
app.MainLoop()
编辑：
啊哈……终于！我尝试在程序的几乎每个级别上使用 Layout() 方法，但实际上我需要在 SIZER 上使用 Layout() 方法，该方法可以通过 GetSizer() 方法找到 - 或者您可以将 SendSizeEvent() 发送到面板（评论在下面的代码中）。因此，以下内容正是我想要的！谢谢您的帮助。唯一的其他更改是将带有 self.panel 的面板存储在框架类中。请注意，我必须将此语句放在 frame.Show() 之后，否则它无法正常工作。
代码：
import wx
class StaticWrapText(wx.PyControl):
def __init__(self, parent, id=wx.ID_ANY, label='', pos=wx.DefaultPosition,
size=wx.DefaultSize, style=wx.NO_BORDER,
validator=wx.DefaultValidator, name='StaticWrapText'):
wx.PyControl.__init__(self, parent, id, pos, size, style, validator, name)
self.statictext = wx.StaticText(self, wx.ID_ANY, label, style=style)
self.wraplabel = label
#self.wrap()
def wrap(self):
self.Freeze()
self.statictext.SetLabel(self.wraplabel)
self.statictext.Wrap(self.GetSize().width)
self.Thaw()
def DoGetBestSize(self):
self.wrap()
#print self.statictext.GetSize()
self.SetSize(self.statictext.GetSize())
return self.GetSize()
class MyForm(wx.Frame):
def __init__(self):
wx.Frame.__init__(self, None, wx.ID_ANY, "Tutorial")
# Add a panel so it looks the correct on all platforms
self.panel = wx.Panel(self, wx.ID_ANY)
text = "I'm subclasses the statictext because I want it to act exactly like a static text, but correctly wordwrap as needed. I've found several examples of it on the web, but none that worked how I wanted. The wordwrap makes it look much nicer when the user may decide to re-size the window, so I would definitely like to have it be wordwrapped. I know about the wx.lib.wordwrap, but chose to use the built in Wrap function of the statictext control instead. It basically does the same thing from what I understand."
txt = StaticWrapText(self.panel, label=text)
wxbutton = wx.Button(self.panel, label='Button', size=wx.Size(120,50))
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(txt, 0, wx.EXPAND, 5)
sizer.Add(wxbutton, 1, wx.EXPAND, 5)
self.panel.SetSizer(sizer)
# Run the program
if __name__ == "__main__":
app = wx.PySimpleApp()
frame = MyForm()
frame.Show()
#frame.panel.SendSizeEvent()
frame.panel.GetSizer().Layout()
app.MainLoop()
最后一点，在我发布的原始程序中，需要在 frame.Show() 之前或之后添加以下行：
frame.panel.Panel2.GetSizer().Layout()
有趣的是……对于那个原始示例，它可以在 frame.Show() 之前或之后，但另一个示例要求它在 frame.Show() 之后。我不知道为什么，但只要把它放在后面，你就安全了。
我用
width = 200 # panel width
txt = wx.StaticText(panel, label=text)
txt.Wrap(width)
这很好用,下一个小部件正确定位.您可以轻松地txt.Wrap(width)动态完成.
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