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Poodletooth-iLand/panda/python/Lib/site-packages/wx/lib/agw/fourwaysplitter.py
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# --------------------------------------------------------------------------------- #
# FOURWAYSPLITTER wxPython IMPLEMENTATION
#
# Andrea Gavana, @ 03 Nov 2006
# Latest Revision: 16 Jul 2012, 15.00 GMT
#
#
# TODO List
#
# 1. Any idea?
#
# For All Kind Of Problems, Requests Of Enhancements And Bug Reports, Please
# Write To Me At:
#
# andrea.gavana@maerskoil.com
# andrea.gavana@gmail.com
#
# Or, Obviously, To The wxPython Mailing List!!!
#
# Tags: phoenix-port, unittest, documented, py3-port
#
# End Of Comments
# --------------------------------------------------------------------------------- #
"""
:class:`FourWaySplitter` is a layout manager which manages 4 children like 4 panes in a
window.
Description
===========
The :class:`FourWaySplitter` is a layout manager which manages four children like four
panes in a window. You can use a four-way splitter for example in a CAD program
where you may want to maintain three orthographic views, and one oblique view of
a model.
The :class:`FourWaySplitter` allows interactive repartitioning of the panes by
means of moving the central splitter bars. When the :class:`FourWaySplitter` is itself
resized, each child is proportionally resized, maintaining the same split-percentage.
The main characteristics of :class:`FourWaySplitter` are:
- Handles horizontal, vertical or four way sizing via the sashes;
- Delayed or live update when resizing;
- Possibility to swap windows;
- Setting the vertical and horizontal split fractions;
- Possibility to expand a window by hiding the onther 3.
And a lot more. See the demo for a complete review of the functionalities.
Usage
=====
Usage example::
import wx
import wx.lib.agw.fourwaysplitter as fws
class MyFrame(wx.Frame):
def __init__(self, parent):
wx.Frame.__init__(self, parent, -1, "FourWaySplitter Demo")
splitter = fws.FourWaySplitter(self, -1, agwStyle=wx.SP_LIVE_UPDATE)
# Put in some coloured panels...
for colour in [wx.RED, wx.WHITE, wx.BLUE, wx.GREEN]:
panel = wx.Panel(splitter)
panel.SetBackgroundColour(colour)
splitter.AppendWindow(panel)
# our normal wxApp-derived class, as usual
app = wx.App(0)
frame = MyFrame(None)
app.SetTopWindow(frame)
frame.Show()
app.MainLoop()
Supported Platforms
===================
:class:`FourWaySplitter` has been tested on the following platforms:
* Windows (Windows XP);
* Linux Ubuntu (Dapper 6.06)
Window Styles
=============
This class supports the following window styles:
================== =========== ==================================================
Window Styles Hex Value Description
================== =========== ==================================================
``SP_NOSASH`` 0x10 No sash will be drawn on :class:`FourWaySplitter`.
``SP_LIVE_UPDATE`` 0x80 Don't draw XOR line but resize the child windows immediately.
``SP_3DBORDER`` 0x200 Draws a 3D effect border.
================== =========== ==================================================
Events Processing
=================
This class processes the following events:
================================== ==================================================
Event Name Description
================================== ==================================================
``EVT_SPLITTER_SASH_POS_CHANGED`` The sash position was changed. This event is generated after the user releases the mouse after dragging the splitter. Processes a ``wx.wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGED`` event.
``EVT_SPLITTER_SASH_POS_CHANGING`` The sash position is in the process of being changed. You may prevent this change from happening by calling `Veto` or you may also modify the position of the tracking bar to properly reflect the position that would be set if the drag were to be completed at this point. Processes a ``wx.wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGING`` event.
================================== ==================================================
License And Version
===================
:class:`FourWaySplitter` is distributed under the wxPython license.
Latest Revision: Andrea Gavana @ 16 Jul 2012, 15.00 GMT
Version 0.5
"""
import wx
_RENDER_VER = (2,6,1,1)
# Tolerance for mouse shape and sizing
_TOLERANCE = 5
# Modes
NOWHERE = 0
""" No sashes are changing position. """
FLAG_CHANGED = 1
""" Sashes are changing position. """
FLAG_PRESSED = 2
""" Sashes are in a pressed state. """
# FourWaySplitter styles
SP_NOSASH = wx.SP_NOSASH
""" No sash will be drawn on :class:`FourWaySplitter`. """
SP_LIVE_UPDATE = wx.SP_LIVE_UPDATE
""" Don't draw XOR line but resize the child windows immediately. """
SP_3DBORDER = wx.SP_3DBORDER
""" Draws a 3D effect border. """
# FourWaySplitter events
EVT_SPLITTER_SASH_POS_CHANGING = wx.EVT_SPLITTER_SASH_POS_CHANGING
""" The sash position is in the process of being changed. You may prevent this change""" \
""" from happening by calling `Veto` or you may also modify the position of the tracking""" \
""" bar to properly reflect the position that would be set if the drag were to be""" \
""" completed at this point. Processes a ``wx.wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGING`` event."""
EVT_SPLITTER_SASH_POS_CHANGED = wx.EVT_SPLITTER_SASH_POS_CHANGED
""" The sash position was changed. This event is generated after the user releases the""" \
""" mouse after dragging the splitter. Processes a ``wx.wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGED`` event. """
# ---------------------------------------------------------------------------- #
# Class FourWaySplitterEvent
# ---------------------------------------------------------------------------- #
class FourWaySplitterEvent(wx.CommandEvent):
"""
This event class is almost the same as :class:`SplitterEvent` except
it adds an accessor for the sash index that is being changed. The
same event type IDs and event binders are used as with
:class:`SplitterEvent`.
"""
def __init__(self, evtType=wx.wxEVT_NULL, splitter=None):
"""
Default class constructor.
:param `evtType`: the event type;
:param `splitter`: the associated :class:`FourWaySplitter` window.
"""
wx.CommandEvent.__init__(self, evtType)
if splitter:
self.SetEventObject(splitter)
self.SetId(splitter.GetId())
self.sashIdx = -1
self.sashPos = -1
self.isAllowed = True
def SetSashIdx(self, idx):
"""
Sets the index of the sash currently involved in the event.
:param `idx`: an integer between 0 and 3, representing the index of the
sash involved in the event.
"""
self.sashIdx = idx
def SetSashPosition(self, pos):
"""
In the case of ``EVT_SPLITTER_SASH_POS_CHANGED`` events, sets the new sash
position. In the case of ``EVT_SPLITTER_SASH_POS_CHANGING`` events, sets
the new tracking bar position so visual feedback during dragging will represent
that change that will actually take place. Set to -1 from the event handler
code to prevent repositioning.
:param `pos`: the new sash position.
:note: May only be called while processing ``EVT_SPLITTER_SASH_POS_CHANGING``
and ``EVT_SPLITTER_SASH_POS_CHANGED`` events.
"""
self.sashPos = pos
def GetSashIdx(self):
""" Returns the index of the sash currently involved in the event. """
return self.sashIdx
def GetSashPosition(self):
"""
Returns the new sash position.
:note: May only be called while processing ``EVT_SPLITTER_SASH_POS_CHANGING``
and ``EVT_SPLITTER_SASH_POS_CHANGED`` events.
"""
return self.sashPos
# methods from wx.NotifyEvent
def Veto(self):
"""
Prevents the change announced by this event from happening.
:note: It is in general a good idea to notify the user about the reasons
for vetoing the change because otherwise the applications behaviour (which
just refuses to do what the user wants) might be quite surprising.
"""
self.isAllowed = False
def Allow(self):
"""
This is the opposite of :meth:`~FourWaySplitterEvent.Veto`: it explicitly allows the event to be processed.
For most events it is not necessary to call this method as the events are
allowed anyhow but some are forbidden by default (this will be mentioned
in the corresponding event description).
"""
self.isAllowed = True
def IsAllowed(self):
"""
Returns ``True`` if the change is allowed (:meth:`~FourWaySplitterEvent.Veto` hasn't been called) or
``False`` otherwise (if it was).
"""
return self.isAllowed
# ---------------------------------------------------------------------------- #
# Class FourWaySplitter
# ---------------------------------------------------------------------------- #
class FourWaySplitter(wx.Panel):
"""
This class is very similar to :class:`SplitterWindow` except that it
allows for four windows and two sashes. Many of the same styles,
constants, and methods behave the same as in :class:`SplitterWindow`.
However, in addition of the ability to drag the vertical and the
horizontal sash, by dragging at the intersection between the two
sashes, it is possible to resize the four windows at the same time.
:note: These things are not yet supported:
* Minimum pane size (minimum of what? Width? Height?);
* Using negative sash positions to indicate a position offset from the end;
* User controlled unsplitting with double clicks on the sash (but supported via the
:meth:`FourWaySplitter.SetExpanded() <FourWaySplitter.SetExpanded>` method);
* Sash gravity.
"""
def __init__(self, parent, id=wx.ID_ANY, pos=wx.DefaultPosition,
size=wx.DefaultSize, style=0, agwStyle=0, name="FourWaySplitter"):
"""
Default class constructor.
:param `parent`: parent window. Must not be ``None``;
:param `id`: window identifier. A value of -1 indicates a default value;
:param `pos`: the control position. A value of (-1, -1) indicates a default position,
chosen by either the windowing system or wxPython, depending on platform;
:param `size`: the control size. A value of (-1, -1) indicates a default size,
chosen by either the windowing system or wxPython, depending on platform;
:param `style`: the underlying :class:`Panel` window style;
:param `agwStyle`: the AGW-specific window style. It can be a combination of the
following bits:
================== =========== ==================================================
Window Styles Hex Value Description
================== =========== ==================================================
``SP_NOSASH`` 0x10 No sash will be drawn on :class:`FourWaySplitter`.
``SP_LIVE_UPDATE`` 0x80 Don't draw XOR line but resize the child windows immediately.
``SP_3DBORDER`` 0x200 Draws a 3D effect border.
================== =========== ==================================================
:param `name`: the window name.
"""
# always turn on tab traversal
style |= wx.TAB_TRAVERSAL
# and turn off any border styles
style &= ~wx.BORDER_MASK
style |= wx.BORDER_NONE
self._agwStyle = agwStyle
# initialize the base class
wx.Panel.__init__(self, parent, id, pos, size, style, name)
self.SetBackgroundStyle(wx.BG_STYLE_CUSTOM)
self._windows = []
self._splitx = 0
self._splity = 0
self._expanded = -1
self._fhor = 5000
self._fver = 5000
self._offx = 0
self._offy = 0
self._mode = NOWHERE
self._flags = 0
self._isHot = False
self._sashTrackerPen = wx.Pen(wx.BLACK, 2, wx.SOLID)
self._sashCursorWE = wx.Cursor(wx.CURSOR_SIZEWE)
self._sashCursorNS = wx.Cursor(wx.CURSOR_SIZENS)
self._sashCursorSIZING = wx.Cursor(wx.CURSOR_SIZING)
self.Bind(wx.EVT_PAINT, self.OnPaint)
self.Bind(wx.EVT_MOTION, self.OnMotion)
self.Bind(wx.EVT_SIZE, self.OnSize)
self.Bind(wx.EVT_LEFT_DOWN, self.OnLeftDown)
self.Bind(wx.EVT_LEFT_UP, self.OnLeftUp)
self.Bind(wx.EVT_LEAVE_WINDOW, self.OnLeaveWindow)
self.Bind(wx.EVT_ENTER_WINDOW, self.OnEnterWindow)
def SetAGWWindowStyleFlag(self, agwStyle):
"""
Sets the :class:`FourWaySplitter` window style flags.
:param `agwStyle`: the AGW-specific window style. This can be a combination of the
following bits:
================== =========== ==================================================
Window Styles Hex Value Description
================== =========== ==================================================
``SP_NOSASH`` 0x10 No sash will be drawn on :class:`FourWaySplitter`.
``SP_LIVE_UPDATE`` 0x80 Don't draw XOR line but resize the child windows immediately.
``SP_3DBORDER`` 0x200 Draws a 3D effect border.
================== =========== ==================================================
"""
self._agwStyle = agwStyle
self.Refresh()
def GetAGWWindowStyleFlag(self):
"""
Returns the :class:`FourWaySplitter` window style.
:see: :meth:`~FourWaySplitter.SetAGWWindowStyleFlag` for a list of possible window styles.
"""
return self._agwStyle
def AppendWindow(self, window):
"""
Add a new window to the splitter at the right side or bottom
of the window stack.
:param `window`: an instance of :class:`Window`.
"""
self.InsertWindow(len(self._windows), window)
def InsertWindow(self, idx, window, sashPos=-1):
"""
Insert a new window into the splitter at the position given in `idx`.
:param `idx`: the index at which the window will be inserted;
:param `window`: an instance of :class:`Window`;
:param `sashPos`: the sash position after the window insertion.
"""
assert window not in self._windows, "A window can only be in the splitter once!"
self._windows.insert(idx, window)
self._SizeWindows()
def DetachWindow(self, window):
"""
Removes the window from the stack of windows managed by the splitter. The
window will still exist so you should `Hide` or `Destroy` it as needed.
:param `window`: an instance of :class:`Window`.
"""
assert window in self._windows, "Unknown window!"
idx = self._windows.index(window)
del self._windows[idx]
self._SizeWindows()
def ReplaceWindow(self, oldWindow, newWindow):
"""
Replaces `oldWindow` (which is currently being managed by the
splitter) with `newWindow`. The `oldWindow` window will still
exist so you should `Hide` or `Destroy` it as needed.
:param `oldWindow`: an instance of :class:`Window`;
:param `newWindow`: another instance of :class:`Window`.
"""
assert oldWindow in self._windows, "Unknown window!"
idx = self._windows.index(oldWindow)
self._windows[idx] = newWindow
self._SizeWindows()
def ExchangeWindows(self, window1, window2):
"""
Trade the positions in the splitter of the two windows.
:param `window1`: an instance of :class:`Window`;
:param `window2`: another instance of :class:`Window`.
"""
assert window1 in self._windows, "Unknown window!"
assert window2 in self._windows, "Unknown window!"
idx1 = self._windows.index(window1)
idx2 = self._windows.index(window2)
self._windows[idx1] = window2
self._windows[idx2] = window1
if "__WXMSW__" in wx.Platform:
self.Freeze()
self._SizeWindows()
if "__WXMSW__" in wx.Platform:
self.Thaw()
def GetWindow(self, idx):
"""
Returns the window at the index `idx`.
:param `idx`: the index at which the window is located.
"""
if len(self._windows) > idx:
return self._windows[idx]
return None
# Get top left child
def GetTopLeft(self):
""" Returns the top left window (window index: 0). """
return self.GetWindow(0)
# Get top right child
def GetTopRight(self):
""" Returns the top right window (window index: 1). """
return self.GetWindow(1)
# Get bottom left child
def GetBottomLeft(self):
""" Returns the bottom left window (window index: 2). """
return self.GetWindow(2)
# Get bottom right child
def GetBottomRight(self):
""" Returns the bottom right window (window index: 3). """
return self.GetWindow(3)
def DoGetBestSize(self):
"""
Gets the size which best suits the window: for a control, it would be the
minimal size which doesn't truncate the control, for a panel - the same size
as it would have after a call to `Fit()`.
:note: Overridden from :class:`Panel`.
"""
if not self._windows:
# something is better than nothing...
return wx.Size(10, 10)
width = height = 0
border = self._GetBorderSize()
tl = self.GetTopLeft()
tr = self.GetTopRight()
bl = self.GetBottomLeft()
br = self.GetBottomRight()
for win in self._windows:
w, h = win.GetEffectiveMinSize()
width += w
height += h
if tl and tr:
width += self._GetSashSize()
if bl and br:
height += self._GetSashSize()
return wx.Size(width+2*border, height+2*border)
# Recompute layout
def _SizeWindows(self):
"""
Recalculate the layout based on split positions and split fractions.
:see: :meth:`~FourWaySplitter.SetHSplit` and :meth:`~FourWaySplitter.SetVSplit` for more information about split fractions.
"""
win0 = self.GetTopLeft()
win1 = self.GetTopRight()
win2 = self.GetBottomLeft()
win3 = self.GetBottomRight()
width, height = self.GetSize()
barSize = self._GetSashSize()
border = self._GetBorderSize()
if self._expanded < 0:
totw = width - barSize - 2*border
toth = height - barSize - 2*border
self._splitx = (self._fhor*totw)//10000
self._splity = (self._fver*toth)//10000
rightw = totw - self._splitx
bottomh = toth - self._splity
if win0:
win0.SetSize(0, 0, self._splitx, self._splity)
win0.Show()
if win1:
win1.SetSize(self._splitx + barSize, 0, rightw, self._splity)
win1.Show()
if win2:
win2.SetSize(0, self._splity + barSize, self._splitx, bottomh)
win2.Show()
if win3:
win3.SetSize(self._splitx + barSize, self._splity + barSize, rightw, bottomh)
win3.Show()
else:
if self._expanded < len(self._windows):
for ii, win in enumerate(self._windows):
if ii == self._expanded:
win.SetSize(0, 0, width-2*border, height-2*border)
win.Show()
else:
win.Hide()
# Determine split mode
def GetMode(self, pt):
"""
Determines the split mode for :class:`FourWaySplitter`.
:param `pt`: the point at which the mouse has been clicked, an instance of
:class:`Point`.
:return: One of the following 3 split modes:
================= ==============================
Split Mode Description
================= ==============================
``wx.HORIZONTAL`` the user has clicked on the horizontal sash
``wx.VERTICAL`` The user has clicked on the vertical sash
``wx.BOTH`` The user has clicked at the intersection between the 2 sashes
================= ==============================
"""
barSize = self._GetSashSize()
flag = wx.BOTH
if pt.x < self._splitx - _TOLERANCE:
flag &= ~wx.VERTICAL
if pt.y < self._splity - _TOLERANCE:
flag &= ~wx.HORIZONTAL
if pt.x >= self._splitx + barSize + _TOLERANCE:
flag &= ~wx.VERTICAL
if pt.y >= self._splity + barSize + _TOLERANCE:
flag &= ~wx.HORIZONTAL
return flag
# Move the split intelligently
def MoveSplit(self, x, y):
"""
Moves the split accordingly to user action.
:param `x`: the new splitter `x` coordinate;
:param `y`: the new splitter `y` coordinate.
"""
width, height = self.GetSize()
barSize = self._GetSashSize()
if x < 0: x = 0
if y < 0: y = 0
if x > width - barSize: x = width - barSize
if y > height - barSize: y = height - barSize
self._splitx = x
self._splity = y
# Adjust layout
def AdjustLayout(self):
"""
Adjust layout of :class:`FourWaySplitter`. Mainly used to recalculate the
correct values for split fractions.
"""
width, height = self.GetSize()
barSize = self._GetSashSize()
border = self._GetBorderSize()
self._fhor = (width > barSize and \
[(10000*self._splitx+(width-barSize-1))//(width-barSize)] \
or [0])[0]
self._fver = (height > barSize and \
[(10000*self._splity+(height-barSize-1))//(height-barSize)] \
or [0])[0]
self._SizeWindows()
# Button being pressed
def OnLeftDown(self, event):
"""
Handles the ``wx.EVT_LEFT_DOWN`` event for :class:`FourWaySplitter`.
:param `event`: a :class:`MouseEvent` event to be processed.
"""
if not self.IsEnabled():
return
pt = event.GetPosition()
self.CaptureMouse()
self._mode = self.GetMode(pt)
if self._mode:
self._offx = pt.x - self._splitx
self._offy = pt.y - self._splity
if not self.GetAGWWindowStyleFlag() & wx.SP_LIVE_UPDATE:
self.DrawSplitter(wx.ClientDC(self))
self.DrawTrackSplitter(self._splitx, self._splity)
self._flags |= FLAG_PRESSED
# Button being released
def OnLeftUp(self, event):
"""
Handles the ``wx.EVT_LEFT_UP`` event for :class:`FourWaySplitter`.
:param `event`: a :class:`MouseEvent` event to be processed.
"""
if not self.IsEnabled():
return
if self.HasCapture():
self.ReleaseMouse()
flgs = self._flags
self._flags &= ~FLAG_CHANGED
self._flags &= ~FLAG_PRESSED
if flgs & FLAG_PRESSED:
if not self.GetAGWWindowStyleFlag() & wx.SP_LIVE_UPDATE:
self.DrawTrackSplitter(self._splitx, self._splity)
self.DrawSplitter(wx.ClientDC(self))
self.AdjustLayout()
if flgs & FLAG_CHANGED:
event = FourWaySplitterEvent(wx.wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGED, self)
event.SetSashIdx(self._mode)
event.SetSashPosition(wx.Point(self._splitx, self._splity))
self.GetEventHandler().ProcessEvent(event)
self._mode = NOWHERE
def OnLeaveWindow(self, event):
"""
Handles the ``wx.EVT_LEAVE_WINDOW`` event for :class:`FourWaySplitter`.
:param `event`: a :class:`MouseEvent` event to be processed.
"""
self.SetCursor(wx.STANDARD_CURSOR)
self._RedrawIfHotSensitive(False)
def OnEnterWindow(self, event):
"""
Handles the ``wx.EVT_ENTER_WINDOW`` event for :class:`FourWaySplitter`.
:param `event`: a :class:`MouseEvent` event to be processed.
"""
self._RedrawIfHotSensitive(True)
def _RedrawIfHotSensitive(self, isHot):
"""
Used internally. Redraw the splitter if we are using a hot-sensitive splitter.
:param `isHot`: ``True`` if the splitter is in a hot state, ``False`` otherwise.
"""
if not wx.VERSION >= _RENDER_VER:
return
if wx.RendererNative.Get().GetSplitterParams(self).isHotSensitive:
self._isHot = isHot
dc = wx.ClientDC(self)
self.DrawSplitter(dc)
def OnMotion(self, event):
"""
Handles the ``wx.EVT_MOTION`` event for :class:`FourWaySplitter`.
:param `event`: a :class:`MouseEvent` event to be processed.
"""
if self.HasFlag(wx.SP_NOSASH):
return
pt = event.GetPosition()
# Moving split
if self._flags & FLAG_PRESSED:
oldsplitx = self._splitx
oldsplity = self._splity
if self._mode == wx.BOTH:
self.MoveSplit(pt.x - self._offx, pt.y - self._offy)
elif self._mode == wx.VERTICAL:
self.MoveSplit(pt.x - self._offx, self._splity)
elif self._mode == wx.HORIZONTAL:
self.MoveSplit(self._splitx, pt.y - self._offy)
# Send a changing event
if not self.DoSendChangingEvent(wx.Point(self._splitx, self._splity)):
self._splitx = oldsplitx
self._splity = oldsplity
return
if oldsplitx != self._splitx or oldsplity != self._splity:
if not self.GetAGWWindowStyleFlag() & wx.SP_LIVE_UPDATE:
self.DrawTrackSplitter(oldsplitx, oldsplity)
self.DrawTrackSplitter(self._splitx, self._splity)
else:
self.AdjustLayout()
self._flags |= FLAG_CHANGED
# Change cursor based on position
ff = self.GetMode(pt)
if ff == wx.BOTH:
self.SetCursor(self._sashCursorSIZING)
elif ff == wx.VERTICAL:
self.SetCursor(self._sashCursorWE)
elif ff == wx.HORIZONTAL:
self.SetCursor(self._sashCursorNS)
else:
self.SetCursor(wx.STANDARD_CURSOR)
event.Skip()
def OnPaint(self, event):
"""
Handles the ``wx.EVT_PAINT`` event for :class:`FourWaySplitter`.
:param `event`: a :class:`PaintEvent` event to be processed.
"""
dc = wx.PaintDC(self)
self.DrawSplitter(dc)
def OnSize(self, event):
"""
Handles the ``wx.EVT_SIZE`` event for :class:`FourWaySplitter`.
:param `event`: a :class:`SizeEvent` event to be processed.
"""
parent = wx.GetTopLevelParent(self)
if parent.IsIconized():
event.Skip()
return
self._SizeWindows()
def DoSendChangingEvent(self, pt):
"""
Sends a ``EVT_SPLITTER_SASH_POS_CHANGING`` event.
:param `pt`: the point at which the splitter is being positioned.
"""
# send the event
event = FourWaySplitterEvent(wx.wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGING, self)
event.SetSashIdx(self._mode)
event.SetSashPosition(pt)
if self.GetEventHandler().ProcessEvent(event) and not event.IsAllowed():
# the event handler vetoed the change or missing event.Skip()
return False
else:
# or it might have changed the value
return True
def _GetSashSize(self):
""" Used internally. """
if self.HasFlag(wx.SP_NOSASH):
return 0
if wx.VERSION >= _RENDER_VER:
return wx.RendererNative.Get().GetSplitterParams(self).widthSash
else:
return 5
def _GetBorderSize(self):
""" Used internally. """
if wx.VERSION >= _RENDER_VER:
return wx.RendererNative.Get().GetSplitterParams(self).border
else:
return 0
# Draw the horizontal split
def DrawSplitter(self, dc):
"""
Actually draws the sashes.
:param `dc`: an instance of :class:`DC`.
"""
backColour = self.GetBackgroundColour()
dc.SetBrush(wx.Brush(backColour))
dc.SetPen(wx.Pen(backColour))
dc.Clear()
if wx.VERSION >= _RENDER_VER:
if self.HasFlag(wx.SP_3DBORDER):
wx.RendererNative.Get().DrawSplitterBorder(
self, dc, self.GetClientRect())
else:
barSize = self._GetSashSize()
# if we are not supposed to use a sash then we're done.
if self.HasFlag(wx.SP_NOSASH):
return
flag = 0
if self._isHot:
flag = wx.CONTROL_CURRENT
width, height = self.GetSize()
if self._mode & wx.VERTICAL:
if wx.VERSION >= _RENDER_VER:
wx.RendererNative.Get().DrawSplitterSash(self, dc,
self.GetClientSize(),
self._splitx, wx.VERTICAL, flag)
else:
dc.DrawRectangle(self._splitx, 0, barSize, height)
if self._mode & wx.HORIZONTAL:
if wx.VERSION >= _RENDER_VER:
wx.RendererNative.Get().DrawSplitterSash(self, dc,
self.GetClientSize(),
self._splity, wx.VERTICAL, flag)
else:
dc.DrawRectangle(0, self._splity, width, barSize)
def DrawTrackSplitter(self, x, y):
"""
Draws a fake sash in case we don't have ``wx.SP_LIVE_UPDATE`` style.
:param `x`: the `x` position of the sash;
:param `y`: the `y` position of the sash.
:note: This method relies on :class:`ScreenDC` which is currently unavailable on wxMac.
"""
# Draw a line to represent the dragging sash, for when not
# doing live updates
w, h = self.GetClientSize()
dc = wx.ScreenDC()
dc.SetLogicalFunction(wx.INVERT)
dc.SetPen(self._sashTrackerPen)
dc.SetBrush(wx.TRANSPARENT_BRUSH)
if self._mode == wx.VERTICAL:
x1 = x
y1 = 2
x2 = x
y2 = h-2
if x1 > w:
x1 = w
x2 = w
elif x1 < 0:
x1 = 0
x2 = 0
x1, y1 = self.ClientToScreen((x1, y1))
x2, y2 = self.ClientToScreen((x2, y2))
dc.DrawLine(x1, y1, x2, y2)
dc.SetLogicalFunction(wx.COPY)
elif self._mode == wx.HORIZONTAL:
x1 = 2
y1 = y
x2 = w-2
y2 = y
if y1 > h:
y1 = h
y2 = h
elif y1 < 0:
y1 = 0
y2 = 0
x1, y1 = self.ClientToScreen((x1, y1))
x2, y2 = self.ClientToScreen((x2, y2))
dc.DrawLine(x1, y1, x2, y2)
dc.SetLogicalFunction(wx.COPY)
elif self._mode == wx.BOTH:
x1 = 2
x2 = w-2
y1 = y
y2 = y
x1, y1 = self.ClientToScreen((x1, y1))
x2, y2 = self.ClientToScreen((x2, y2))
dc.DrawLine(x1, y1, x2, y2)
x1 = x
x2 = x
y1 = 2
y2 = h-2
x1, y1 = self.ClientToScreen((x1, y1))
x2, y2 = self.ClientToScreen((x2, y2))
dc.DrawLine(x1, y1, x2, y2)
dc.SetLogicalFunction(wx.COPY)
# Change horizontal split [fraction*10000]
def SetHSplit(self, s):
"""
Change horizontal split fraction.
:param `s`: the split fraction, which is an integer value between 0 and
10000 (inclusive), indicating how much space to allocate to the leftmost
panes. For example, to split the panes at 35 percent, use::
fourSplitter.SetHSplit(3500)
"""
if s < 0: s = 0
if s > 10000: s =10000
if s != self._fhor:
self._fhor = s
self._SizeWindows()
# Change vertical split [fraction*10000]
def SetVSplit(self, s):
"""
Change vertical split fraction.
:param `s`: the split fraction, which is an integer value between 0 and
10000 (inclusive), indicating how much space to allocate to the topmost
panes. For example, to split the panes at 35 percent, use::
fourSplitter.SetVSplit(3500)
"""
if s < 0: s = 0
if s > 10000: s =10000
if s != self._fver:
self._fver = s
self._SizeWindows()
# Expand one or all of the four panes
def SetExpanded(self, expanded):
"""
This method is used to expand one of the four window to fill the
whole client size (when `expanded` >= 0) or to return to the four-window
view (when `expanded` < 0).
:param `expanded`: an integer >= 0 to expand a window to fill the whole
client size, or an integer < 0 to return to the four-window view.
"""
if expanded >= 4:
raise Exception("ERROR: SetExpanded: index out of range: %d"%expanded)
if self._expanded != expanded:
self._expanded = expanded
self._SizeWindows()
if __name__ == '__main__':
import wx
class MyFrame(wx.Frame):
def __init__(self, parent):
wx.Frame.__init__(self, parent, -1, "FourWaySplitter Demo")
splitter = FourWaySplitter(self, -1, agwStyle=wx.SP_LIVE_UPDATE)
# Put in some coloured panels...
for colour in [wx.RED, wx.WHITE, wx.BLUE, wx.GREEN]:
panel = wx.Panel(splitter)
panel.SetBackgroundColour(colour)
splitter.AppendWindow(panel)
# our normal wxApp-derived class, as usual
app = wx.App(0)
frame = MyFrame(None)
app.SetTopWindow(frame)
frame.Show()
app.MainLoop()
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