144 lines
4.8 KiB
Python
144 lines
4.8 KiB
Python
# ===============================================================================
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# TogglePanel is based on PyCollapsiblePane - includes a few improvements
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# such as adding items to header, lack of button implementation ("GTK
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# expander" style is implemented with plain text with unicode arrows rather
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# than drawn geometry), etc.
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#
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# When adding TogglePanel to sizer, it is important to ensure the following:
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# sizer is vertical
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# set proportion = 0
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#
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# ToDo: Create animations for collapsing / expanding
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#
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# ===============================================================================
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import wx
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class TogglePanel(wx.Panel):
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def __init__(self, parent, force_layout=False, *args, **kargs):
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super().__init__(parent, *args, **kargs)
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self._toggled = True
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self.parent = parent
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self.force_layout = force_layout
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# Create the main sizer of this panel
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self.main_sizer = wx.BoxSizer(wx.VERTICAL)
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self.SetSizer(self.main_sizer)
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# Create the header panel, set sizer, and add to main sizer
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self.header_panel = wx.Panel(self)
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header_sizer = wx.BoxSizer(wx.HORIZONTAL)
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self.header_panel.SetSizer(header_sizer)
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self.main_sizer.Add(self.header_panel, 0, wx.EXPAND | wx.TOP |
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wx.BOTTOM | wx.RIGHT, 1)
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# Add arrow
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self.header_arrow = wx.StaticText(self.header_panel, wx.ID_ANY,
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"\u25bc", size=wx.Size((10, -1)))
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header_sizer.Add(self.header_arrow, 0, wx.RIGHT, 5)
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# Add header text
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self.header_label = wx.StaticText(self.header_panel, wx.ID_ANY, "")
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font = parent.GetFont()
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font.SetWeight(wx.BOLD)
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self.header_label.SetFont(font)
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header_sizer.Add(self.header_label, 0, wx.RIGHT, 5)
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# Add a sizer for additional header items if we need it
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self.hcontent_sizer = wx.BoxSizer(wx.HORIZONTAL)
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header_sizer.Add(self.hcontent_sizer, 1, wx.RIGHT, 5)
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# Create the content panel, set sizer, and add to main sizer
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self.content_panel = wx.Panel(self)
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self.content_sizer = wx.BoxSizer(wx.VERTICAL)
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self.content_panel.SetSizer(self.content_sizer)
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self.main_sizer.Add(self.content_panel, 0, wx.EXPAND | wx.RIGHT |
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wx.LEFT, 5)
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self.Layout()
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# Connect Events
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self.header_label.Bind(wx.EVT_LEFT_UP, self.ToggleContent)
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self.header_arrow.Bind(wx.EVT_LEFT_UP, self.ToggleContent)
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self.header_panel.Bind(wx.EVT_LEFT_UP, self.ToggleContent)
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def __del__(self):
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pass
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def AddToggleItem(self, item):
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item.Bind(wx.EVT_LEFT_UP, self.ToggleContent)
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def GetHeaderContentSizer(self):
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return self.hcontent_sizer
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def GetHeaderPanel(self):
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return self.header_panel
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def InsertItemInHeader(self, item):
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self.hcontent_sizer.Add(item, 0, 0, 0)
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self.AddToggleItem(item)
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self.Layout()
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def AddSizer(self, sizer):
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self.content_sizer.Add(sizer, 0, wx.EXPAND | wx.ALL, 0)
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self.Layout()
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def GetContentPanel(self):
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return self.content_panel
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def SetLabel(self, label):
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self.header_label.SetLabel(label)
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def IsCollapsed(self):
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return not self._toggled
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def IsExpanded(self):
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return self._toggled
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def OnStateChange(self, sz):
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self.SetSize(sz)
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self.parent.GetSizer().SetSizeHints(self.parent)
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if not self._toggled:
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if self.parent.GetSizer():
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# we have just set the size hints...
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sz = self.parent.GetSizer().CalcMin()
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# use SetClientSize() and not SetSize() otherwise the size for
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# e.g. a wxFrame with a menubar wouldn't be correctly set
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self.parent.SetClientSize(sz)
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else:
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self.parent.Layout()
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else:
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# force our parent to "fit", i.e. expand so that it can honor
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# our minimal size
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self.parent.Fit()
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def ToggleContent(self, event):
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# self.Freeze()
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if self._toggled:
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# If we are expanded, save previous size and collapse by setting
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# content height to 0
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self.content_min_size = self.content_panel.GetSize()
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self.content_panel.SetMinSize((self.content_min_size[0], 0))
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self.header_arrow.SetLabel("\u25b6")
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else:
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# If we are collapsed, set content size to previously saved value
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self.content_panel.SetMinSize(self.content_min_size)
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self.header_arrow.SetLabel("\u25bc")
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self._toggled = not self._toggled
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# self.Thaw()
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if self.force_layout:
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self.parent.Layout()
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else:
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self.OnStateChange(self.GetBestSize())
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