文章/答案/技术大牛

发布

社区首页 >问答首页 >如何更新wxStaticBitamp？

问如何更新wxStaticBitamp？
EN

Stack Overflow用户

提问于 2015-11-24 12:05:33

回答 2查看 869关注 0票数 1

问题

如果用户单击来自wxStaticBitamp的某个项目，我希望更新wx.TreeCtrl图像。

码

import wx
app = wx.App(redirect=False)
top = wx.Frame(None)
sizer = wx.GridBagSizer()

def createHelpWindow(event):
    import wx  
    locale = wx.Locale(wx.LANGUAGE_ENGLISH)
    frame = wx.Frame(None, wx.ID_ANY, " Help contents", style=wx.MINIMIZE_BOX | wx.CAPTION | wx.CLOSE_BOX) # A Frame is a top-level window.
    frame.Center()
    frame.SetBackgroundColour('LIGHTGREY')
    frame.SetSize(800,600)
    sizer = wx.GridBagSizer()

    # Add control tree
    treeHelp = wx.TreeCtrl(frame, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.TR_DEFAULT_STYLE )
    sizer.Add(treeHelp,(1,1),(19,23),wx.EXPAND)

    # Add description box
    helpDisplay = wx.StaticText( frame, wx.ID_ANY, "", wx.DefaultPosition, wx.DefaultSize, 0, )
    sizer.Add(helpDisplay,(1,26),(1,1),wx.EXPAND)

    # Create image object
    chooseMessageImage = wx.StaticBitmap( frame, wx.ID_ANY, wx.Bitmap(wx.NullBitmap), wx.Point( 300,110 ),wx.DefaultSize, 0)
    def OnSelChanged(event):
        locale = wx.Locale(wx.LANGUAGE_ENGLISH)
        chooseMessageImage = wx.StaticBitmap( frame, wx.ID_ANY, wx.Bitmap(wx.NullBitmap), wx.Point( 300,110 ),wx.DefaultSize, 0)
        item =  event.GetItem()

        # Display the selected item text in the text widget
        print "selected ", treeHelp.GetItemText(item)
        if treeHelp.GetItemText(item) == 'TFT':
            helpSecondDisplay.SetLabel("""test page for landing page""")
            chooseMessageImage.SetBitmap(wx.NullBitmap) # Set image object to null
        #################### End main #########################
        elif treeHelp.GetItemText(item) == 'Main page':
            helpSecondDisplay.SetLabel("""test txt for main page""")
            chooseMessageImage.SetBitmap(wx.Bitmap( u"create_images/add_message.png", wx.BITMAP_TYPE_ANY)) # Set image to some src  
    treeHelp.Bind(wx.EVT_TREE_SEL_CHANGED, OnSelChanged)
    helpSecondDisplay = wx.StaticText( frame, wx.ID_ANY, "Lorem ipsum", wx.DefaultPosition, wx.DefaultSize, 0, )
    sizer.Add(helpSecondDisplay,(3,26),(1,1),wx.EXPAND)   
    root = treeHelp.AddRoot('TFT')
    rootMainPage = treeHelp.AppendItem(root, 'Main page') 
    treeHelp.Expand(root)

    # Wrap it up
    frame.SetSizer(sizer)
    frame.Center()    
    frame.Show(True)     # Show the frame.


# Bind the method
helpButton = wx.Button(top, wx.ID_ANY, u"help",  style=wx.BU_EXACTFIT )
sizer.Add(helpButton,(0,0),(1,1))
top.Bind(wx.EVT_BUTTON, createHelpWindow, helpButton)  
top.Sizer = sizer
top.Sizer.Fit(top)
top.Show()
app.MainLoop()

电流

单击根时显示图像对象(chooseMessageImage)。

期望的

单击根时不应显示图像对象(chooseMessageImage)。

注意:当加载窗口时，焦点将设置在根上，但图像将不会显示。

编辑1：

import wx
app = wx.App(redirect=False)
top = wx.Frame(None)
sizer = wx.GridBagSizer()

def createHelpWindow(event):
    import wx  
    locale = wx.Locale(wx.LANGUAGE_ENGLISH)
    frame = wx.Frame(None, wx.ID_ANY, " Help contents", style=wx.MINIMIZE_BOX | wx.CAPTION | wx.CLOSE_BOX) # A Frame is a top-level window.
    frame.Center()
    frame.SetBackgroundColour('LIGHTGREY')
    frame.SetSize(800,600)
    sizer = wx.GridBagSizer()

    # Add control tree
    treeHelp = wx.TreeCtrl(frame, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.TR_DEFAULT_STYLE )
    sizer.Add(treeHelp,(1,1),(19,23),wx.EXPAND)

    # Add description box
    helpDisplay = wx.StaticText( frame, wx.ID_ANY, "", wx.DefaultPosition, wx.DefaultSize, 0, )
    sizer.Add(helpDisplay,(1,26),(1,1),wx.EXPAND)

    # Create image object
    chooseMessageImage = wx.StaticBitmap( frame, wx.ID_ANY, wx.NullBitmap, wx.Point( 300,110 ),wx.DefaultSize, 0)
    def OnSelChanged(event):
        locale = wx.Locale(wx.LANGUAGE_ENGLISH)
        chooseMessageImage = wx.StaticBitmap( frame, wx.ID_ANY, wx.NullBitmap, wx.Point( 300,110 ),wx.DefaultSize, 0)
        item =  event.GetItem()

        # Display the selected item text in the text widget
        print "selected ", treeHelp.GetItemText(item)
        if treeHelp.GetItemText(item) == 'TFT':
            helpSecondDisplay.SetLabel("""test page for landing page""")
            chooseMessageImage.SetBitmap(wx.NullBitmap) # Set image object to null
        #################### End main #########################
        elif treeHelp.GetItemText(item) == 'Main page':
            helpSecondDisplay.SetLabel("""test txt for main page""")
            chooseMessageImage.SetBitmap(wx.Bitmap( "create_images/add_message.png", wx.BITMAP_TYPE_ANY)) # Set image to some src
        chooseMessageImage.Refresh()
    treeHelp.Bind(wx.EVT_TREE_SEL_CHANGED, OnSelChanged)
    helpSecondDisplay = wx.StaticText( frame, wx.ID_ANY, "Lorem ipsum", wx.DefaultPosition, wx.DefaultSize, 0, )
    sizer.Add(helpSecondDisplay,(3,26),(1,1),wx.EXPAND)   
    root = treeHelp.AddRoot('TFT')
    rootMainPage = treeHelp.AppendItem(root, 'Main page') 
    treeHelp.Expand(root)

    # Wrap it up
    frame.SetSizer(sizer)
    frame.Center()    
    frame.Show(True)     # Show the frame.


# Bind the method
helpButton = wx.Button(top, wx.ID_ANY, u"help",  style=wx.BU_EXACTFIT )
sizer.Add(helpButton,(0,0),(1,1))
top.Bind(wx.EVT_BUTTON, createHelpWindow, helpButton)  
top.Sizer = sizer
top.Sizer.Fit(top)
top.Show()
app.MainLoop()

python

wxpython

回答 2

Stack Overflow用户

回答已采纳

发布于 2015-12-01 15:29:22

问题解决了。最后的工作守则是：

import wx


app = wx.App(redirect=False)
top = wx.Frame(None)
sizer = wx.GridBagSizer()

def createHelpWindow(event):
    import wx
    locale = wx.Locale(wx.LANGUAGE_ENGLISH)
    frame = wx.Frame(None, wx.ID_ANY, " Help contents", style=wx.MINIMIZE_BOX | wx.CAPTION | wx.CLOSE_BOX) # A Frame is a top-level window.
    frame.Center()
    frame.SetBackgroundColour('LIGHTGREY')
    frame.SetSize(800,600)
    sizer = wx.GridBagSizer()
    # Add control tree
    treeHelp = wx.TreeCtrl(frame, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.TR_DEFAULT_STYLE )
    sizer.Add(treeHelp,(1,1),(19,23),wx.EXPAND)
    # Add description box
    helpDisplay = wx.StaticText( frame, wx.ID_ANY, "", wx.DefaultPosition, wx.DefaultSize, 0, )
    sizer.Add(helpDisplay,(1,26),(1,1),wx.EXPAND)
    # Create image object
    chooseMessageImage = wx.StaticBitmap( frame, wx.ID_ANY, wx.NullBitmap, wx.Point( 300,110 ),wx.DefaultSize, 0)
    def OnSelChanged(event):
        locale = wx.Locale(wx.LANGUAGE_ENGLISH)
        item =  event.GetItem()
        # Display the selected item text in the text widget
        print "selected ", treeHelp.GetItemText(item)
        if treeHelp.GetItemText(item) == 'TFT':
            helpSecondDisplay.SetLabel("""test page for landing page""")
            chooseMessageImage.SetBitmap(wx.NullBitmap) # Set image object to null
        #################### End main #########################
        elif treeHelp.GetItemText(item) == 'Main page':
            helpSecondDisplay.SetLabel("""test txt for main page""")
            chooseMessageImage.SetBitmap(wx.Bitmap( "create_images/add_message.png", wx.BITMAP_TYPE_ANY)) # Set image to some src
            frame.Refresh()
    treeHelp.Bind(wx.EVT_TREE_SEL_CHANGED, OnSelChanged)
    helpSecondDisplay = wx.StaticText( frame, wx.ID_ANY, "Lorem ipsum", wx.DefaultPosition, wx.DefaultSize, 0, )
    sizer.Add(helpSecondDisplay,(3,26),(1,1),wx.EXPAND)
    root = treeHelp.AddRoot('TFT')
    rootMainPage = treeHelp.AppendItem(root, 'Main page')
    treeHelp.Expand(root)
    # Wrap it up
    frame.SetSizer(sizer)
    frame.Center()
    frame.Show(True)     # Show the frame.


# Bind the method
helpButton = wx.Button(top, wx.ID_ANY, u"help",  style=wx.BU_EXACTFIT )
sizer.Add(helpButton,(0,0),(1,1))
top.Bind(wx.EVT_BUTTON, createHelpWindow, helpButton)
top.Sizer = sizer
top.Sizer.Fit(top)
top.Show()
app.MainLoop()

我的错误是我在OnSelChanged方法中创建了OnSelChanged。

票数 0

Stack Overflow用户

发布于 2015-12-01 01:16:17

更改图像后添加Refresh()调用

#################### End main #########################
elif treeHelp.GetItemText(item) == 'Main page':
    helpSecondDisplay.SetLabel("""test txt for main page""")
    chooseMessageImage.SetBitmap(wx.Bitmap( "create_images/add_message.png", wx.BITMAP_TYPE_ANY)) # Set image to some src
chooseMessageImage.Refresh()

并将wx.Bitmap(wx.NullBitmap)更改为wx.NullBitmap

来自wxpython关于Refresh()的文档：

""" Refresh(self, bool eraseBackground=True, Rect rect=None) Mark the specified rectangle (or the whole window) as "dirty" so it will be repainted. Causes an EVT\_PAINT event to be generated and sent to the window. """

票数 3

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/33893287

复制

相似问题

问如何更新wxStaticBitamp？
EN

回答 2

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何更新wxStaticBitamp？EN

回答 2

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何更新wxStaticBitamp？
EN