叠加两个wx.网格大小调整只是第二个

Question

我试图在同一框架中创建两个垂直堆叠的网格。因为它是不可能禁用滚动条网格，我正在尝试这个转弯第一个栅格必须占据框架的顶部，而第二个栅格必须占据框架的下部。当调整框架大小时，顶部网格必须始终保持可见，没有滚动条，而底部网格可以显示滚动条。下面是一个示例代码。唯一的问题是，我不能使第一个网格只占用它的尺寸在框架中，它占据了一半的框架，无论如何。

import wx
import wx.grid as glib
import wx.lib.scrolledpanel as SP
# The main panel:        
class grids(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self,parent)
        # scrolled panels
        resizableScrolledPanel = SP.ScrolledPanel(self)
        fixedScrolledPanel = SP.ScrolledPanel(self)
        # main sizer for everything:
        mainSizer = wx.BoxSizer(wx.VERTICAL)
        # create grids
        fixGrid = glib.Grid(fixedScrolledPanel)
        resizableGrid = glib.Grid(resizableScrolledPanel)
        # customize grids
        fixGrid.CreateGrid(3,10)
        resizableGrid.CreateGrid(20,10)
        fixGrid.SetDefaultCellBackgroundColour( [176, 196, 222] )#light steel blue
        fixGrid.SetGridLineColour([0,0,0])
        [fixGrid.SetRowLabelValue(idx, ["row 1","row 2","row 3"][idx]) for idx in range(3)]
        resizableGrid.SetColLabelSize(0)
        fixGrid.SetRowLabelSize( wx.grid.GRID_AUTOSIZE )
        resizableGrid.SetRowLabelSize( fixGrid.GetRowLabelSize() )
        # Create the grids sizers
        propSizer = wx.BoxSizer(wx.VERTICAL)
        dataSizer = wx.BoxSizer(wx.VERTICAL)
        propSizer.Add(fixGrid,1,wx.RIGHT|wx.TOP|wx.EXPAND,5)
        dataSizer.Add(resizableGrid,1,wx.RIGHT|wx.BOTTOM|wx.EXPAND,5)
        fixedScrolledPanel.SetSizer(propSizer)
        resizableScrolledPanel.SetSizer(dataSizer)
        fixedScrolledPanel.Layout()
        resizableScrolledPanel.Layout()
        resizableScrolledPanel.SetupScrolling(scroll_x=True, scroll_y=True)
        fixedScrolledPanel.SetupScrolling(scroll_x=False, scroll_y=False)
        # add to main sizer
        mainSizer.Add(fixedScrolledPanel,1,wx.RIGHT|wx.TOP|wx.EXPAND,5)
        mainSizer.Add(resizableScrolledPanel,1,wx.RIGHT|wx.BOTTOM|wx.EXPAND,5)
        self.SetSizer(mainSizer)
        self.Fit()
        print fixedScrolledPanel.GetSize() # returns (0,0)
# The main frame:
class MainFrame(wx.Frame):
    def __init__(self,parent,title):
    wx.Frame.__init__(self,parent,-1,title=title, size=(850,500))
    sizer = wx.BoxSizer(wx.HORIZONTAL)
    sizer.Add(grids(self),1,wx.EXPAND)
    self.SetSizer(sizer)
    self.SetAutoLayout(1)
app = wx.App(False)
frame = MainFrame(None, "Scroll Test")
frame.Show(True)
app.MainLoop()

通常我应该将fixedScrolledPanel的mainSizer比例设置为0，如下所示

mainSizer.Add(fixedScrolledPanel,0,wx.RIGHT|wx.TOP|wx.EXPAND,5)

但由于fixedScrolledPanel是(0,0)，第一个网格消失了…

Answer 1

缺失的细节是SetSizeHints呼叫;尺寸调整者需要知道该按多大比例调整。您还希望mainSizer中的面板具有proportion = 0。

import wx
import wx.grid as glib
import wx.lib.scrolledpanel as SP
# The main panel:        
class grids(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self,parent)
        # scrolled panels
        resizableScrolledPanel = SP.ScrolledPanel(self)
        fixedScrolledPanel = SP.ScrolledPanel(self)
        # main sizer for everything:
        mainSizer = wx.BoxSizer(wx.VERTICAL)
        # create grids
        fixGrid = glib.Grid(fixedScrolledPanel)
        resizableGrid = glib.Grid(resizableScrolledPanel)
        # customize grids
        fixGrid.CreateGrid(3,10)
        resizableGrid.CreateGrid(20,10)
        fixGrid.SetDefaultCellBackgroundColour( [176, 196, 222] )#light steel blue
        fixGrid.SetGridLineColour([0,0,0])
        [fixGrid.SetRowLabelValue(idx, ["row 1","row 2","row 3"][idx]) for idx in range(3)]
        resizableGrid.SetColLabelSize(0)
        fixGrid.SetRowLabelSize( wx.grid.GRID_AUTOSIZE )
        resizableGrid.SetRowLabelSize( fixGrid.GetRowLabelSize() )
        # Create the grids sizers
        fixedSizer  = wx.BoxSizer(wx.VERTICAL)
        resizeSizer = wx.BoxSizer(wx.VERTICAL)
        resizableScrolledPanel.SetupScrolling(scroll_x=True, scroll_y=True)
        fixedScrolledPanel.SetupScrolling(scroll_x=False, scroll_y=False)
        fixedSizer.Add
        (
            fixGrid,
            proportion = 1,
            flag       = wx.EXPAND,
            border     = 0
        )
        fixedScrolledPanel.SetSizer(fixedSizer)
        fixedSizer.SetSizeHints(fixedScrolledPanel)
        mainSizer.Add
        (
            fixedScrolledPanel,
            proportion = 0,
            flag       = wx.EXPAND | wx.RIGHT | wx.TOP,
            border     = 5
        )
        resizeSizer.Add
        (
            resizableGrid,
            proportion = 1,
            flag       = wx.EXPAND,
            border     = 0
        )
        resizableScrolledPanel.SetSizer(resizeSizer)
        resizeSizer.SetSizeHints(resizableScrolledPanel)
        mainSizer.Add
        (
            resizableScrolledPanel,
            proportion = 0,
            flag       = wx.EXPAND | wx.RIGHT | wx.BOTTOM,
            border     = 5
        )
        self.SetSizer(mainSizer)
        mainSizer.Fit(self)
# The main frame:
class MainFrame(wx.Frame):
    def __init__(self,parent,title):
        wx.Frame.__init__(self,parent,-1,title=title, size=(850,500))
        sizer = wx.BoxSizer(wx.HORIZONTAL)
        sizer.Add(grids(self),1,wx.EXPAND)
        self.SetSizer(sizer)
        sizer.Fit(self)
app = wx.App(False)
frame = MainFrame(None, "Scroll Test")
frame.Show(True)
app.MainLoop()

为了可读性，我重新格式化了你的代码。

Answer 2

@呆伯特修复滚动条只需要很少的修改

import wx
import wx.grid as glib
import wx.lib.scrolledpanel as SP
# The main panel:        
class grids(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self,parent)
        # scrolled panels
        resizableScrolledPanel = SP.ScrolledPanel(self)
        fixedScrolledPanel = SP.ScrolledPanel(self)
        # main sizer for everything:
        mainSizer = wx.BoxSizer(wx.VERTICAL)
        # create grids
        fixGrid = glib.Grid(fixedScrolledPanel)
        resizableGrid = glib.Grid(resizableScrolledPanel)
        # customize grids
        fixGrid.CreateGrid(3,10)
        resizableGrid.CreateGrid(20,10)
        fixGrid.SetDefaultCellBackgroundColour( [176, 196, 222] )#light steel blue
        fixGrid.SetGridLineColour([0,0,0])
        [fixGrid.SetRowLabelValue(idx, ["row 1","row 2","row 3"][idx]) for idx in range(3)]
        resizableGrid.SetColLabelSize(0)
        fixGrid.SetRowLabelSize( wx.grid.GRID_AUTOSIZE )
        resizableGrid.SetRowLabelSize( fixGrid.GetRowLabelSize() )
        # Create the grids sizers
        fixedSizer  = wx.BoxSizer(wx.VERTICAL)
        resizeSizer = wx.BoxSizer(wx.VERTICAL)
        resizableScrolledPanel.SetupScrolling(scroll_x=True, scroll_y=True)
        fixedScrolledPanel.SetupScrolling(scroll_x=False, scroll_y=False)
        fixedSizer.Add
        (
        fixGrid,
        proportion = 1,
        flag       = wx.EXPAND,
        border     = 0
        )
        fixedScrolledPanel.SetSizer(fixedSizer)
        fixedSizer.SetSizeHints(fixedScrolledPanel)
        mainSizer.Add
        (
        fixedScrolledPanel,
        proportion = 0,
        flag       = wx.EXPAND | wx.RIGHT | wx.TOP,
        border     = 5
        )
        resizeSizer.Add
        (
        resizableGrid,
        proportion = 1,
        flag       = wx.EXPAND,
        border     = 0
        )
        resizableScrolledPanel.SetSizer(resizeSizer)
        mainSizer.Add
        (
        resizableScrolledPanel,
        proportion = 1,
        flag       = wx.EXPAND | wx.RIGHT | wx.BOTTOM,
        border     = 5
        )
        self.SetSizer(mainSizer)
        mainSizer.Fit(self)
# The main frame:
class MainFrame(wx.Frame):
    def __init__(self,parent,title):
        wx.Frame.__init__(self,parent,-1,title=title, size=(850,500))
        sizer = wx.BoxSizer(wx.HORIZONTAL)
        sizer.Add(grids(self),1,wx.EXPAND)
        self.SetSizer(sizer)
        sizer.Fit(self)
app = wx.App(False)
frame = MainFrame(None, "Scroll Test")
frame.Show(True)
app.MainLoop()