class HorizontalCollapsePanel(FlowPanel):
def __init__(self, *args, **kwargs):
# set defaults
if not 'StyleName' in kwargs:
kwargs['StyleName'] = "rjw-HorizontalCollapsePanel"
FlowPanel.__init__(self, *args, **kwargs)
self._containers = [
ScrollPanel(StyleName = self.getStylePrimaryName() + '-left'),
ScrollPanel(StyleName = self.getStylePrimaryName() + '-right'),
]
self._collapse_widget = ScrollPanel(StyleName = self.getStylePrimaryName() + '-collapse')
collapse_button = ToggleButton(StyleName = self.getStylePrimaryName() + '-collapse-button')
collapse_button.addClickListener(self._sync_collapse)
self._collapse_widget.add(collapse_button)
FlowPanel.add(self, self._containers[0])
FlowPanel.add(self, self._collapse_widget)
FlowPanel.add(self, self._containers[1])
self._sync_collapse()
def _sync_collapse(self, w=None):
collapse_button = self._collapse_widget.getWidget(0)
if collapse_button.isDown():
self.addStyleName(self.getStylePrimaryName() + '-collapsed')
else:
self.removeStyleName(self.getStylePrimaryName() + '-collapsed')
def getWidget(self, index):
if index >= 0 and index < len(self._containers):
return self._containers[index].getWidget()
console.error('HorizontalCollapsePanel.getWidget passed invalid index: ' + str(index))
raise IndexError('Index out of range')
def setWidget(self, index, widget):
if index >= 0 and index < len(self._containers):
return self._containers[index].setWidget(widget)
console.error('HorizontalCollapsePanel.setWidget passed invalid index: ' + str(index))
raise IndexError('Index out of range')
# Adds a widget to a pane
def add(self, widget):
if self.getWidget(0) == None:
self.setWidget(0, widget)
elif self.getWidget(1) == None:
self.setWidget(1, widget)
else:
console.error("HorizontalCollapsePanel can only contain two child widgets.")
# Removes a child widget.
def remove(self, widget):
if self.getWidget(0) == widget:
self._containers[0].remove(widget)
elif self.getWidget(1) == widget:
self._containers[1].remove(widget)
else:
AbsolutePanel.remove(self, widget)
class SplitPanel(AbsolutePanel, MouseHandler, EventGenerator):
""" Provides the SplitPanel baseclass functionality
A SplitPanel is an AbsolutePanel containing an HTMLTable
with three cells. The first cell holds the first ScrollPanel,
while the center cell holds a Splitter, and the last cell
holds the other ScrollPanel.
"""
def __init__(self, vertical=False, **kwargs):
# set defaults
if not 'StyleName' in kwargs:
if vertical: # vertical split panel
kwargs['StyleName'] = "gwt-VerticalSplitPanel"
else:
kwargs['StyleName'] = "gwt-HorizontalSplitPanel"
# splitter drag state vars
self._drag_start = None
self._pos = "50%"
# orientation
self._vertical = vertical
# now init the bases
AbsolutePanel.__init__(self, **kwargs)
MouseHandler.__init__(self)
# add our event support?
self.addListenedEvent("Resize")
# create the top/left widget container
self._container1 = ScrollPanel()
# create the bottom/right widget container
self._container2 = ScrollPanel()
# create the splitter
self._splitter = SplitPanelSplitter(self)
# add splitter handling
self._splitter.addMouseListener(self)
# add mouse event handling
self.addMouseListener(self)
# add the parts
AbsolutePanel.add(self, self._container1, 0, 0)
AbsolutePanel.add(self, self._splitter, 0, 0)
AbsolutePanel.add(self, self._container2, 0, 0)
# set the layout
if vertical: # vertical split panel
self._splitter.setStyleName("vsplitter")
self._splitter.setWidth("100%")
self._container1.setWidth("100%")
self._container2.setWidth("100%")
# set drag cursor
DOM.setStyleAttribute(self._splitter.getElement(),
"cursor", "n-resize")
else: # horizontal split panel
self._splitter.setStyleName("hsplitter")
self._splitter.setHeight("100%")
self._container1.setHeight("100%")
self._container2.setHeight("100%")
# set drag cursor
DOM.setStyleAttribute(self._splitter.getElement(),
"cursor", "e-resize")
def onAttach(self):
AbsolutePanel.onAttach(self)
self.setSplitPosition()
# fixup the container 2 size and position
def _finalizePositions(self, pos=None):
finalized = False
if self._vertical:
if pos is None:
pos = self._container1.getOffsetHeight()
space = self.getOffsetHeight()
sz = self._splitter.getOffsetHeight()
if space > 0 and sz > 0 and pos > 0:
# limit pos
if pos > space - sz:
pos = space - sz
self._container1.setHeight(pos)
self.setWidgetPosition(self._splitter, 0, pos)
self.setWidgetPosition(self._container2, 0, pos + sz)
self._container2.setHeight(space - (pos + sz))
finalized = True
else:
if pos is None:
pos = self._container1.getOffsetWidth()
space = self.getOffsetWidth()
sz = self._splitter.getOffsetWidth()
if space > 0 and sz > 0 and pos > 0:
# limit pos
if pos > space - sz:
pos = space - sz
self._container1.setWidth(pos)
self.setWidgetPosition(self._splitter, pos, 0)
self.setWidgetPosition(self._container2, pos + sz, 0)
self._container2.setWidth(space - (pos + sz))
finalized = True
if finalized:
self.dispatchResizeEvent(self, pos)
return finalized
# end a drag operation
def _stopDragging(self):
if self._drag_start is not None:
# we are no longer dragging
self._drag_start = None
# deactivate the transparent overlay
GlassWidget.hide()
# don't let a mouse-up become a click event
DOM.eventCancelBubble(DOM.eventGetCurrentEvent(), True)
def _isDragging(self):
return self._drag_start is not None
# start a drag operation (called by splitter)
def startSplitterDrag(self, x, y):
if self._drag_start is None:
# remember where on the slider we are dragging
if self._vertical:
self._drag_start = y
else:
self._drag_start = x
# activate the transparent overlay to keep mouse events flowing to
# the splitter (and to us) even if the mouse leaves the splitter
GlassWidget.show(self)
# add handlers for mouse events to support dragging the slider
# NOTE: the x,y positioni s relative to the splitter
def onMouseMove(self, sender, x, y):
# if dragging, then use current mouse position
# to reset splitter position
if not self._isDragging():
return
# remove the offset into the splitter
# where we started dragging
if self._vertical:
self._pos = y - self._drag_start
else:
self._pos = x - self._drag_start
# apply limit
if self._pos < 1:
self._pos = 1
# apply new position
self.setSplitPosition()
def onMouseUp(self, sender, x, y):
ev = DOM.eventGetCurrentEvent()
# ignore right-button ups
if DOM.eventGetButton(ev) != Event.BUTTON_LEFT:
return
DOM.eventPreventDefault(ev)
# if we are dragging
if self._isDragging():
# stop dragging on mouse up
self._stopDragging()
# called when we start dragging
def onMouseGlassEnter(self, sender):
pass
# called when we drag out of the window
# (NOT called when we just stop dragging)
def onMouseGlassLeave(self, sender):
# we left the window, so stop dragging
self._stopDragging()
#
# Start the inherited 'public' API
#
# specify splitter position in pix OR percentage
# if pixels (number) specified, we can make change now
# otherwise, we have to set the offset as specified, then
# 'fixup' the remaining space after rendering
def setSplitPosition(self, pos=None):
if pos is not None:
# remember last pos set
self._pos = pos
else:
pos = self._pos
if pos < 1:
pos = 1
self._pos = pos
# change adjustable dimension
if self._vertical:
self._container1.setHeight(pos)
else:
self._container1.setWidth(pos)
# if pix are given, we can try to finalize the positions
finalized = False
if isinstance(pos, int):
finalized = self._finalizePositions(pos)
# if needed, queue callback to finalize
if not finalized:
DeferredCommand.add(self._finalizePositions)
def getWidget(self, index):
if index == 0:
return self._container1.getWidget()
return self._container2.getWidget()
def setWidget(self, index, widget):
if index == 0:
return self._container1.setWidget(widget)
return self._container2.setWidget(widget)
# Adds a widget to a pane
def add(self, widget):
if self.getWidget(0) == None:
self.setWidget(0, widget)
elif self.getWidget(1) == None:
self.setWidget(1, widget)
else:
console.error("SimplePanel can only contain one child widget")
# Removes a child widget.
def remove(self, widget):
if self.getWidget(0) == widget:
self._container1.remove(widget)
elif self.getWidget(1) == widget:
self._container2.remove(widget)
else:
AbsolutePanel.remove(self, widget)
# Gets the content element for the given index.
def getElement(self, index=None):
if index is None:
return AbsolutePanel.getElement(self)
return self.getWidget(index).getElement()
# Gets the widget in the pane at end of the line direction for the layout
def getEndOfLineWidget(self):
return self.getWidget(1)
# Gets the element that is acting as the splitter.
def getSplitElement(self):
return self._splitter.getElement()
# Gets the widget in the pane at the start of line direction for the layout
def getStartOfLineWidget(self):
return self.getWidget(0)
# Indicates whether the split panel is being resized.
def isResizing(self):
return False
# Sets the widget in the pane at the end of line direction for the layout
def setEndOfLineWidget(self, widget):
self.setWidget(1, widget)
def setStartOfLineWidget(self, widget):
self.setWidget(0, widget)
class SplitPanel(AbsolutePanel, MouseHandler, EventGenerator):
""" Provides the SplitPanel baseclass functionality
A SplitPanel is an AbsolutePanel containing an HTMLTable
with three cells. The first cell holds the first ScrollPanel,
while the center cell holds a Splitter, and the last cell
holds the other ScrollPanel.
"""
def __init__(self, vertical=False, **kwargs):
# set defaults
if not 'StyleName' in kwargs:
if vertical: # vertical split panel
kwargs['StyleName'] = "gwt-VerticalSplitPanel"
else:
kwargs['StyleName'] = "gwt-HorizontalSplitPanel"
# splitter drag state vars
self._drag_start = None
self._pos = "50%"
# orientation
self._vertical = vertical
# now init the bases
AbsolutePanel.__init__(self, **kwargs)
MouseHandler.__init__(self)
# add our event support?
self.addListenedEvent("Resize")
# create the top/left widget container
self._container1 = ScrollPanel()
# create the bottom/right widget container
self._container2 = ScrollPanel()
# create the splitter
self._splitter = SplitPanelSplitter(self)
# add splitter handling
self._splitter.addMouseListener(self)
# add mouse event handling
self.addMouseListener(self)
# add the parts
AbsolutePanel.add(self, self._container1, 0, 0)
AbsolutePanel.add(self, self._splitter, 0, 0)
AbsolutePanel.add(self, self._container2, 0, 0)
# set the layout
if vertical: # vertical split panel
self._splitter.setStyleName("vsplitter")
self._splitter.setWidth("100%")
self._container1.setWidth("100%")
self._container2.setWidth("100%")
# set drag cursor
DOM.setStyleAttribute(self._splitter.getElement(),
"cursor", "n-resize")
else: # horizontal split panel
self._splitter.setStyleName("hsplitter")
self._splitter.setHeight("100%")
self._container1.setHeight("100%")
self._container2.setHeight("100%")
# set drag cursor
DOM.setStyleAttribute(self._splitter.getElement(),
"cursor", "e-resize")
def onAttach(self):
AbsolutePanel.onAttach(self)
self.setSplitPosition()
# fixup the container 2 size and position
def _finalizePositions(self, pos=None):
finalized = False
if self._vertical:
if pos is None:
pos = self._container1.getOffsetHeight()
space = self.getOffsetHeight()
sz = self._splitter.getOffsetHeight()
if space > 0 and sz > 0 and pos > 0:
# limit pos
if pos > space - sz:
pos = space - sz
self._container1.setHeight(pos)
self.setWidgetPosition(self._splitter, 0, pos)
self.setWidgetPosition(self._container2, 0, pos + sz)
self._container2.setHeight(space - (pos + sz))
finalized = True
else:
if pos is None:
pos = self._container1.getOffsetWidth()
space = self.getOffsetWidth()
sz = self._splitter.getOffsetWidth()
if space > 0 and sz > 0 and pos > 0:
# limit pos
if pos > space - sz:
pos = space - sz
self._container1.setWidth(pos)
self.setWidgetPosition(self._splitter, pos, 0)
self.setWidgetPosition(self._container2, pos + sz, 0)
self._container2.setWidth(space - (pos + sz))
finalized = True
if finalized:
self.dispatchResizeEvent(self, pos)
return finalized
# end a drag operation
def _stopDragging(self):
if self._drag_start is not None:
# we are no longer dragging
self._drag_start = None
# deactivate the transparent overlay
GlassWidget.hide()
# don't let a mouse-up become a click event
DOM.eventCancelBubble(DOM.eventGetCurrentEvent(), True)
def _isDragging(self):
return self._drag_start is not None
# start a drag operation (called by splitter)
def startSplitterDrag(self, x, y):
if self._drag_start is None:
# remember where on the slider we are dragging
if self._vertical:
self._drag_start = y
else:
self._drag_start = x
# activate the transparent overlay to keep mouse events flowing to
# the splitter (and to us) even if the mouse leaves the splitter
GlassWidget.show(self)
# add handlers for mouse events to support dragging the slider
# NOTE: the x,y positioni s relative to the splitter
def onMouseMove(self, sender, x, y):
# if dragging, then use current mouse position
# to reset splitter position
if not self._isDragging():
return
# remove the offset into the splitter
# where we started dragging
if self._vertical:
self._pos = y - self._drag_start
else:
self._pos = x - self._drag_start
# apply limit
if self._pos < 1:
self._pos = 1
# apply new position
self.setSplitPosition()
def onMouseUp(self, sender, x, y):
ev = DOM.eventGetCurrentEvent()
# ignore right-button ups
if DOM.eventGetButton(ev) != Event.BUTTON_LEFT:
return
DOM.eventPreventDefault(ev)
# if we are dragging
if self._isDragging():
# stop dragging on mouse up
self._stopDragging()
# called when we start dragging
def onMouseGlassEnter(self, sender):
pass
# called when we drag out of the window
# (NOT called when we just stop dragging)
def onMouseGlassLeave(self, sender):
# we left the window, so stop dragging
self._stopDragging()
#
# Start the inherited 'public' API
#
# specify splitter position in pix OR percentage
# if pixels (number) specified, we can make change now
# otherwise, we have to set the offset as specified, then
# 'fixup' the remaining space after rendering
def setSplitPosition(self, pos=None):
if pos is not None:
# remember last pos set
self._pos = pos
else:
pos = self._pos
if pos < 1:
pos = 1
self._pos = pos
# change adjustable dimension
if self._vertical:
self._container1.setHeight(pos)
else:
self._container1.setWidth(pos)
# if pix are given, we can try to finalize the positions
finalized = False
if isinstance(pos, int):
finalized = self._finalizePositions(pos)
# if needed, queue callback to finalize
if not finalized:
queue_Call(self._finalizePositions)
def getWidget(self, index):
if index == 0:
return self._container1.getWidget()
return self._container2.getWidget()
def setWidget(self, index, widget):
if index == 0:
return self._container1.setWidget(widget)
return self._container2.setWidget(widget)
# Adds a widget to a pane
def add(self, widget):
if self.getWidget(0) == None:
self.setWidget(0, widget)
elif self.getWidget(1) == None:
self.setWidget(1, widget)
else:
console.error("SimplePanel can only contain one child widget")
# Removes a child widget.
def remove(self, widget):
if self.getWidget(0) == widget:
self._container1.remove(widget)
elif self.getWidget(1) == widget:
self._container2.remove(widget)
else:
AbsolutePanel.remove(self, widget)
# Gets the content element for the given index.
def getElement(self, index=None):
if index is None:
return AbsolutePanel.getElement(self)
return self.getWidget(index).getElement()
# Gets the widget in the pane at end of the line direction for the layout
def getEndOfLineWidget(self):
return self.getWidget(1)
# Gets the element that is acting as the splitter.
def getSplitElement(self):
return self._splitter.getElement()
# Gets the widget in the pane at the start of line direction for the layout
def getStartOfLineWidget(self):
return self.getWidget(0)
# Indicates whether the split panel is being resized.
def isResizing(self):
return False
# Sets the widget in the pane at the end of line direction for the layout
def setEndOfLineWidget(self, widget):
self.setWidget(1, widget)
def setStartOfLineWidget(self, widget):
self.setWidget(0, widget)
