275 lines
9.3 KiB
Python
Executable File
275 lines
9.3 KiB
Python
Executable File
#!/usr/bin/python
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# Terminator by Chris Jones <cmsj@tenshu.net>
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# GPL v2 only
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"""paned.py - a base Paned container class and the vertical/horizontal
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variants"""
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import gobject
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import gtk
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from util import dbg, err, get_top_window
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from terminator import Terminator
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from factory import Factory
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from container import Container
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# pylint: disable-msg=R0921
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# pylint: disable-msg=E1101
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class Paned(Container):
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"""Base class for Paned Containers"""
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def __init__(self):
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"""Class initialiser"""
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self.terminator = Terminator()
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Container.__init__(self)
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self.signals.append({'name': 'resize-term',
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'flags': gobject.SIGNAL_RUN_LAST,
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'return_type': gobject.TYPE_NONE,
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'param_types': (gobject.TYPE_STRING,)})
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# pylint: disable-msg=W0613
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def set_initial_position(self, widget, event):
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"""Set the initial position of the widget"""
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if isinstance(self, gtk.VPaned):
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position = self.allocation.height / 2
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else:
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position = self.allocation.width / 2
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dbg("Paned::set_initial_position: Setting position to: %d" % position)
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self.set_position(position)
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self.cnxids.remove_signal(self, 'expose-event')
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# pylint: disable-msg=W0613
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def split_axis(self, widget, vertical=True, cwd=None, sibling=None,
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widgetfirst=True):
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"""Default axis splitter. This should be implemented by subclasses"""
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order = None
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maker = Factory()
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self.remove(widget)
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if vertical:
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container = VPaned()
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else:
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container = HPaned()
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if not sibling:
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sibling = maker.make('terminal')
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sibling.set_cwd(cwd)
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sibling.spawn_child()
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self.add(container)
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self.show_all()
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order = [widget, sibling]
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if widgetfirst is False:
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order.reverse()
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for terminal in order:
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container.add(terminal)
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self.show_all()
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def add(self, widget):
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"""Add a widget to the container"""
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maker = Factory()
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if len(self.children) == 0:
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self.pack1(widget, True, True)
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self.children.append(widget)
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elif len(self.children) == 1:
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if self.get_child1():
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self.pack2(widget, True, True)
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else:
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self.pack1(widget, True, True)
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self.children.append(widget)
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else:
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raise ValueError('Paned widgets can only have two children')
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if maker.isinstance(widget, 'Terminal'):
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top_window = get_top_window(self)
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signals = {'close-term': self.wrapcloseterm,
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'split-horiz': self.split_horiz,
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'split-vert': self.split_vert,
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'title-change': self.propagate_title_change,
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'resize-term': self.resizeterm,
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'zoom': top_window.zoom,
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'tab-change': top_window.tab_change,
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'group-all': top_window.group_all,
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'ungroup-all': top_window.ungroup_all,
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'group-tab': top_window.group_tab,
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'ungroup-tab': top_window.ungroup_tab,
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'move-tab': top_window.move_tab,
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'maximise': [top_window.zoom, False],
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'tab-new': top_window.tab_new,
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'navigate': top_window.navigate_terminal}
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for signal in signals:
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args = []
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handler = signals[signal]
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if isinstance(handler, list):
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args = handler[1:]
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handler = handler[0]
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self.connect_child(widget, signal, handler, *args)
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widget.grab_focus()
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elif isinstance(widget, gtk.Paned):
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try:
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self.connect_child(widget, 'resize-term', self.resizeterm)
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except TypeError:
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err('Paned::add: %s has no signal resize-term' % widget)
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def remove(self, widget):
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"""Remove a widget from the container"""
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gtk.Paned.remove(self, widget)
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self.disconnect_child(widget)
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self.children.remove(widget)
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return(True)
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def get_children(self):
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"""Return an ordered list of our children"""
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children = []
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children.append(self.get_child1())
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children.append(self.get_child2())
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return(children)
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def wrapcloseterm(self, widget):
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"""A child terminal has closed, so this container must die"""
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dbg('Paned::wrapcloseterm: Called on %s' % widget)
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if self.closeterm(widget):
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# At this point we only have one child, which is the surviving term
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sibling = self.children[0]
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self.remove(sibling)
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parent = self.get_parent()
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parent.remove(self)
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self.cnxids.remove_all()
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parent.add(sibling)
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del(self)
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else:
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dbg("Paned::wrapcloseterm: self.closeterm failed")
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def hoover(self):
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"""Check that we still have a reason to exist"""
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if len(self.children) == 1:
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dbg('Paned::hoover: We only have one child, die')
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parent = self.get_parent()
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parent.remove(self)
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child = self.children[0]
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self.remove(child)
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parent.add(child)
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del(self)
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def resizeterm(self, widget, keyname):
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"""Handle a keyboard event requesting a terminal resize"""
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maker = Factory()
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if keyname in ['up', 'down'] and isinstance(self, gtk.VPaned):
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# This is a key we can handle
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position = self.get_position()
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if maker.isinstance(widget, 'Terminal'):
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fontheight = widget.vte.get_char_height()
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else:
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fontheight = 10
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if keyname == 'up':
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self.set_position(position - fontheight)
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else:
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self.set_position(position + fontheight)
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elif keyname in ['left', 'right'] and isinstance(self, gtk.HPaned):
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# This is a key we can handle
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position = self.get_position()
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if maker.isinstance(widget, 'Terminal'):
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fontwidth = widget.vte.get_char_width()
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else:
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fontwidth = 10
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if keyname == 'left':
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self.set_position(position - fontwidth)
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else:
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self.set_position(position + fontwidth)
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else:
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# This is not a key we can handle
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self.emit('resize-term', keyname)
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def create_layout(self, layout):
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"""Apply layout configuration"""
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if not layout.has_key('children'):
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err('layout specifies no children: %s' % layout)
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return
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children = layout['children']
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if len(children) != 2:
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# Paned widgets can only have two children
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err('incorrect number of children for Paned: %s' % layout)
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return
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keys = []
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# FIXME: This seems kinda ugly. All we want here is to know the order
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# of children based on child['order']
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try:
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child_order_map = {}
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for child in children:
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key = children[child]['order']
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child_order_map[key] = child
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map_keys = child_order_map.keys()
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map_keys.sort()
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for map_key in map_keys:
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keys.append(child_order_map[map_key])
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except KeyError:
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# We've failed to figure out the order. At least give the terminals
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# in the wrong order
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keys = children.keys()
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num = 0
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for child_key in keys:
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child = children[child_key]
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if child['type'] == 'Terminal':
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pass
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elif child['type'] == 'VPaned':
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if num == 0:
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terminal = self.get_child1()
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else:
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terminal = self.get_child2()
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self.split_axis(terminal, True)
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elif child['type'] == 'HPaned':
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if num == 0:
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terminal = self.get_child1()
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else:
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terminal = self.get_child2()
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self.split_axis(terminal, False)
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else:
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err('unknown child type: %s' % child['type'])
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num = num + 1
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self.get_child1().create_layout(children[keys[0]])
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self.get_child2().create_layout(children[keys[1]])
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# FIXME: We need a delayed call to set_position, probably on realizing
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# this widget, but it probably needs to start at the deepest widget and
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# work back up. Fun.
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class HPaned(Paned, gtk.HPaned):
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"""Merge gtk.HPaned into our base Paned Container"""
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def __init__(self):
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"""Class initialiser"""
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Paned.__init__(self)
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gtk.HPaned.__init__(self)
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self.register_signals(HPaned)
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self.cnxids.new(self, 'expose-event', self.set_initial_position)
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class VPaned(Paned, gtk.VPaned):
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"""Merge gtk.VPaned into our base Paned Container"""
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def __init__(self):
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"""Class initialiser"""
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Paned.__init__(self)
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gtk.VPaned.__init__(self)
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self.register_signals(VPaned)
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self.cnxids.new(self, 'expose-event', self.set_initial_position)
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gobject.type_register(HPaned)
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gobject.type_register(VPaned)
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# vim: set expandtab ts=4 sw=4:
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