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# Copyright (C) 2010 Matthew McGowan
#
# Authors:
# Matthew McGowan
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import atk
import gtk
import cairo
import gobject
import pathbar_common
from gettext import gettext as _
# pi constants
M_PI = 3.1415926535897931
PI_OVER_180 = 0.017453292519943295
class BackForwardButton(gtk.HBox):
__gsignals__ = {'left-clicked':(gobject.SIGNAL_RUN_LAST,
gobject.TYPE_NONE,
(gtk.gdk.Event,)),
'right-clicked':(gobject.SIGNAL_RUN_LAST,
gobject.TYPE_NONE,
(gtk.gdk.Event,))}
def __init__(self):
gtk.HBox.__init__(self)
self.theme = pathbar_common.PathBarStyle(self)
sep = SeparatorPart()
if self.get_direction() != gtk.TEXT_DIR_RTL:
# ltr
self.left = ButtonPartLeft('left-clicked')
self.right = ButtonPartRight('right-clicked')
self.set_button_atk_info_ltr()
else:
# rtl
self.left = ButtonPartRight('left-clicked')
self.right = ButtonPartLeft('right-clicked')
self.set_button_atk_info_rtl()
atk_obj = self.get_accessible()
atk_obj.set_name(_('History Navigation'))
atk_obj.set_description(_('Navigate forwards and backwards.'))
atk_obj.set_role(atk.ROLE_PANEL)
self.pack_start(self.left)
self.pack_start(sep, False)
self.pack_end(self.right)
sep.connect_after("style-set", self._on_style_set)
self.connect_after('size-allocate', self._on_size_allocate)
return
def set_button_atk_info_ltr(self):
# left button
atk_obj = self.left.get_accessible()
atk_obj.set_name(_('Back Button'))
atk_obj.set_description(_('Navigates back.'))
atk_obj.set_role(atk.ROLE_PUSH_BUTTON)
# right button
atk_obj = self.right.get_accessible()
atk_obj.set_name(_('Forward Button'))
atk_obj.set_description(_('Navigates forward.'))
atk_obj.set_role(atk.ROLE_PUSH_BUTTON)
return
def set_button_atk_info_rtl(self):
# right button
atk_obj = self.right.get_accessible()
atk_obj.set_name(_('Back Button'))
atk_obj.set_description(_('Navigates back.'))
atk_obj.set_role(atk.ROLE_PUSH_BUTTON)
# left button
atk_obj = self.left.get_accessible()
atk_obj.set_name(_('Forward Button'))
atk_obj.set_description(_('Navigates forward.'))
atk_obj.set_role(atk.ROLE_PUSH_BUTTON)
return
def _on_style_set(self, widget, oldstyle):
# when alloc.width == 1, this is typical of an unallocated widget,
# lets not break a sweat for nothing...
if self.allocation.width == 1:
return
old_xthickness = self.theme['xthickness']
self.theme = pathbar_common.PathBarStyle(self)
if old_xthickness > self.theme['xthickness']:
a = self.allocation
self.queue_draw_area(a.x, a.y,
a.width+self.theme['xthickness'], a.height)
else:
self.queue_draw()
return
def _on_size_allocate(self, widget, allocation):
self.queue_draw()
return
class SeparatorPart(gtk.DrawingArea):
def __init__(self):
gtk.DrawingArea.__init__(self)
self.theme = pathbar_common.PathBarStyle(self)
self.set_size_request(self.theme['xthickness'], -1)
atk_obj = self.get_accessible()
atk_obj.set_role(atk.ROLE_SEPARATOR)
self.connect("expose-event", self._on_expose)
self.connect("style-set", self._on_style_set)
return
def _on_expose(self, widget, event):
parent = self.get_parent()
if not parent: return
cr = widget.window.cairo_create()
cr.rectangle(event.area)
cr.set_source_rgb(*self.theme.dark_line[self.state].tofloats())
cr.fill()
del cr
return
def _on_style_set(self, widget, old_style):
self.theme = pathbar_common.PathBarStyle(self)
self.set_size_request(self.theme['xthickness'], -1)
return
class ButtonPart(gtk.DrawingArea):
ARROW_SIZE = (12,12)
DEFAULT_SIZE = (31, 27)
def __init__(self, arrow_type, signal_name):
gtk.DrawingArea.__init__(self)
self.set_redraw_on_allocate(False)
self.set_size_request(*self.DEFAULT_SIZE)
self.shape = pathbar_common.SHAPE_RECTANGLE
self.button_down = False
self.shadow_type = gtk.SHADOW_OUT
self.arrow_type = arrow_type
self.set_flags(gtk.CAN_FOCUS)
self.set_events(gtk.gdk.ENTER_NOTIFY_MASK|
gtk.gdk.LEAVE_NOTIFY_MASK|
gtk.gdk.BUTTON_PRESS_MASK|
gtk.gdk.BUTTON_RELEASE_MASK)
self.connect("enter-notify-event", self._on_enter)
self.connect("leave-notify-event", self._on_leave)
self.connect("button-press-event", self._on_press)
self.connect("key-press-event", self._on_key_press)
self.connect("key-release-event", self._on_key_release, signal_name)
self.connect('focus-in-event', self._on_focus_in)
self.connect('focus-out-event', self._on_focus_out)
self.connect("button-release-event", self._on_release, signal_name)
return
def set_sensitive(self, is_sensitive):
if is_sensitive:
self.set_state(gtk.STATE_NORMAL)
super(ButtonPart, self).set_sensitive(is_sensitive)
return
def set_active(self, is_active):
if is_active:
self.shadow_type = gtk.SHADOW_IN
self.set_state(gtk.STATE_ACTIVE)
else:
self.shadow_type = gtk.SHADOW_OUT
self.set_state(gtk.STATE_NORMAL)
return
def _on_enter(self, widget, event):
if self.state == gtk.STATE_INSENSITIVE: return
if not self.button_down:
self.set_state(gtk.STATE_PRELIGHT)
else:
self.set_active(True)
return
def _on_key_press(self, widget, event):
# react to spacebar, enter, numpad-enter
if event.keyval in (32, 65293, 65421):
self.set_state(gtk.STATE_ACTIVE)
return
def _on_key_release(self, widget, event, signal_name):
# react to spacebar, enter, numpad-enter
if event.keyval in (32, 65293, 65421):
self.set_state(gtk.STATE_SELECTED)
self.get_parent().emit(signal_name, event)
return
def _on_leave(self, widget, event):
if self.state == gtk.STATE_INSENSITIVE: return
self.set_active(False)
return
def _on_focus_in(self, widget, event):
self.queue_draw()
return
def _on_focus_out(self, widget, event):
self.queue_draw()
return
def _on_press(self, widget, event):
if self.state == gtk.STATE_INSENSITIVE: return
self.button_down = True
self.set_active(True)
return
def _on_release(self, widget, event, signal_name):
if self.state == gtk.STATE_INSENSITIVE: return
self.button_down = False
self.shadow_type = gtk.SHADOW_OUT
p = gtk.gdk.device_get_core_pointer()
x, y = p.get_state(widget.window)[0]
rr = gtk.gdk.region_rectangle(widget.allocation)
if rr.point_in(int(x+widget.allocation.x), int(y+widget.allocation.y)):
self.set_state(gtk.STATE_PRELIGHT)
self.get_parent().emit(signal_name, event)
else:
self.set_state(gtk.STATE_NORMAL)
return
def expose_pathbar(self, widget, area, x, y, w, h, xo=0, wo=0):
if not self.parent: return
# background
cr = widget.window.cairo_create()
cr.rectangle(area)
cr.clip()
self.parent.theme.paint_bg(cr,
self,
x, y, w, h)
del cr
# arrow
if self.has_focus():
self.style.paint_focus(self.window,
self.state,
(x+4+xo, y+4, w-8+wo, h-8),
self,
'button',
x+4+xo, y+4,
w-8+wo, h-8)
aw, ah = self.ARROW_SIZE
ax, ay = (area.width - aw)/2, (area.height - ah)/2,
self.style.paint_arrow(self.window,
self.state,
self.shadow_type,
(ax, ay, aw, ah),
self,
"button",
self.arrow_type,
True,
ax, ay,
aw, ah)
return
class ButtonPartLeft(ButtonPart):
def __init__(self, sig_name):
ButtonPart.__init__(self, gtk.ARROW_LEFT, sig_name)
self.connect("expose-event", self._on_expose, self.expose_pathbar)
return
def _on_expose(self, widget, event, expose_func):
area = event.area
expose_func(widget,
area,
area.x,
area.y,
area.width + 10,
area.height,
wo=-10)
return
class ButtonPartRight(ButtonPart):
def __init__(self, sig_name):
ButtonPart.__init__(self, gtk.ARROW_RIGHT, sig_name)
self.connect("expose-event", self._on_expose, self.expose_pathbar)
return
def _on_expose(self, widget, event, expose_func):
area = event.area
expose_func(widget,
area,
area.x-10,
area.y,
area.width+10,
area.height,
xo=10,
wo=-10)
return
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