From eaef567cabc5c0dda9706faa0e17e20909131ade Mon Sep 17 00:00:00 2001
From: simpoir <simpoir@Bob.(none)>
Date: Fri, 30 Jan 2009 04:14:48 +0000
Subject: ajout initial du tree jhbuild [jhbuild base]

---
(limited to 'src/sugar/graphics/tray.py')

diff --git a/src/sugar/graphics/tray.py b/src/sugar/graphics/tray.py
new file mode 100644
index 0000000..5df7170
--- /dev/null
+++ b/src/sugar/graphics/tray.py
@@ -0,0 +1,461 @@
+# Copyright (C) 2007, One Laptop Per Child
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2 of the License, or (at your option) any later version.
+#
+# This library 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
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the
+# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+"""
+STABLE.
+"""
+
+import gobject
+import gtk
+
+from sugar.graphics import style
+from sugar.graphics.palette import ToolInvoker
+from sugar.graphics.toolbutton import ToolButton
+from sugar.graphics.icon import Icon
+
+_PREVIOUS_PAGE = 0
+_NEXT_PAGE = 1
+
+class _TrayViewport(gtk.Viewport):
+    __gproperties__ = {
+        'scrollable'      : (bool, None, None, False,
+                             gobject.PARAM_READABLE),
+        'can-scroll-prev' : (bool, None, None, False,
+                             gobject.PARAM_READABLE),
+        'can-scroll-next' : (bool, None, None, False,
+                             gobject.PARAM_READABLE),
+    }
+
+    def __init__(self, orientation):
+        self.orientation = orientation
+        self._scrollable = False
+        self._can_scroll_next = False
+        self._can_scroll_prev = False
+
+        gobject.GObject.__init__(self)
+
+        self.set_shadow_type(gtk.SHADOW_NONE)
+
+        self.traybar = gtk.Toolbar()
+        self.traybar.set_orientation(orientation)
+        self.traybar.set_show_arrow(False)
+        self.add(self.traybar)
+        self.traybar.show()
+
+        self.connect('size_allocate', self._size_allocate_cb)
+
+        if self.orientation == gtk.ORIENTATION_HORIZONTAL:
+            adj = self.get_hadjustment()
+        else:
+            adj = self.get_vadjustment()
+        adj.connect('changed', self._adjustment_changed_cb)
+        adj.connect('value-changed', self._adjustment_changed_cb)
+            
+    def scroll(self, direction):
+        if direction == _PREVIOUS_PAGE:
+            self._scroll_previous()
+        elif direction == _NEXT_PAGE:
+            self._scroll_next()
+
+    def scroll_to_item(self, item):
+        """This function scrolls the viewport so that item will be visible."""
+        assert item in self.traybar.get_children()
+
+        # Get the allocation, and make sure that it is visible
+        if self.orientation == gtk.ORIENTATION_HORIZONTAL:
+            adj = self.get_hadjustment()
+            start = item.allocation.x
+            stop = item.allocation.x + item.allocation.width
+        else:
+            adj = self.get_vadjustment()
+            start = item.allocation.y
+            stop = item.allocation.y + item.allocation.height
+
+        if start < adj.value:
+            adj.value = start
+        elif stop > adj.value + adj.page_size:
+            adj.value = stop - adj.page_size
+
+    def _scroll_next(self):
+        allocation = self.get_allocation()
+        if self.orientation == gtk.ORIENTATION_HORIZONTAL:
+            adj = self.get_hadjustment()
+            new_value = adj.value + allocation.width
+            adj.value = min(new_value, adj.upper - allocation.width)
+        else:
+            adj = self.get_vadjustment()
+            new_value = adj.value + allocation.height
+            adj.value = min(new_value, adj.upper - allocation.height)
+
+    def _scroll_previous(self):
+        allocation = self.get_allocation()
+        if self.orientation == gtk.ORIENTATION_HORIZONTAL:
+            adj = self.get_hadjustment()
+            new_value = adj.value - allocation.width
+            adj.value = max(adj.lower, new_value)
+        else:
+            adj = self.get_vadjustment()
+            new_value = adj.value - allocation.height
+            adj.value = max(adj.lower, new_value)
+
+    def do_size_request(self, requisition):
+        child_requisition = self.get_child().size_request()
+        if self.orientation == gtk.ORIENTATION_HORIZONTAL:
+            requisition[0] = 0
+            requisition[1] = child_requisition[1]
+        else:
+            requisition[0] = child_requisition[0]
+            requisition[1] = 0
+
+    def do_get_property(self, pspec):
+        if pspec.name == 'scrollable':
+            return self._scrollable
+        elif pspec.name == 'can-scroll-next':
+            return self._can_scroll_next
+        elif pspec.name == 'can-scroll-prev':
+            return self._can_scroll_prev
+
+    def _size_allocate_cb(self, viewport, allocation):
+        bar_requisition = self.traybar.get_child_requisition()
+        if self.orientation == gtk.ORIENTATION_HORIZONTAL:
+            scrollable = bar_requisition[0] > allocation.width
+        else:
+            scrollable = bar_requisition[1] > allocation.height
+
+        if scrollable != self._scrollable:
+            self._scrollable = scrollable
+            self.notify('scrollable')
+
+    def _adjustment_changed_cb(self, adjustment):
+        if adjustment.value <= adjustment.lower:
+            can_scroll_prev = False
+        else:
+            can_scroll_prev = True
+
+        if adjustment.value + adjustment.page_size >= adjustment.upper:
+            can_scroll_next = False
+        else:
+            can_scroll_next = True
+
+        if can_scroll_prev != self._can_scroll_prev:
+            self._can_scroll_prev = can_scroll_prev
+            self.notify('can-scroll-prev')
+
+        if can_scroll_next != self._can_scroll_next:
+            self._can_scroll_next = can_scroll_next
+            self.notify('can-scroll-next')
+
+
+class _TrayScrollButton(ToolButton):
+    def __init__(self, icon_name, scroll_direction):
+        ToolButton.__init__(self)
+        self._viewport = None
+
+        self._scroll_direction = scroll_direction
+
+        self.set_size_request(style.GRID_CELL_SIZE, style.GRID_CELL_SIZE)
+
+        self.icon = Icon(icon_name = icon_name,
+                         icon_size=gtk.ICON_SIZE_SMALL_TOOLBAR)
+        # The alignment is a hack to work around gtk.ToolButton code
+        # that sets the icon_size when the icon_widget is a gtk.Image
+        alignment = gtk.Alignment(0.5, 0.5)
+        alignment.add(self.icon)
+        self.set_icon_widget(alignment)
+        alignment.show_all()
+
+        self.connect('clicked', self._clicked_cb)
+
+    def set_viewport(self, viewport):
+        self._viewport = viewport
+        self._viewport.connect('notify::scrollable',
+                               self._viewport_scrollable_changed_cb)
+
+        if self._scroll_direction == _PREVIOUS_PAGE:
+            self._viewport.connect('notify::can-scroll-prev',
+                                   self._viewport_can_scroll_dir_changed_cb)
+            self.set_sensitive(self._viewport.props.can_scroll_prev)
+        else:
+            self._viewport.connect('notify::can-scroll-next',
+                                   self._viewport_can_scroll_dir_changed_cb)
+            self.set_sensitive(self._viewport.props.can_scroll_next)
+
+
+    def _viewport_scrollable_changed_cb(self, viewport, pspec):
+        self.props.visible = self._viewport.props.scrollable
+
+    def _viewport_can_scroll_dir_changed_cb(self, viewport, pspec):
+        if self._scroll_direction == _PREVIOUS_PAGE:
+            sensitive = self._viewport.props.can_scroll_prev
+        else:
+            sensitive = self._viewport.props.can_scroll_next
+
+        self.set_sensitive(sensitive)
+
+    def _clicked_cb(self, button):
+        self._viewport.scroll(self._scroll_direction)
+
+    viewport = property(fset=set_viewport)
+
+ALIGN_TO_START = 0
+ALIGN_TO_END = 1
+
+class HTray(gtk.HBox):
+    __gtype_name__ = 'SugarHTray'
+
+    __gproperties__ = {
+        'align'         : (int, None, None, 0, 1, ALIGN_TO_START,
+                           gobject.PARAM_READWRITE |
+                           gobject.PARAM_CONSTRUCT_ONLY),
+        'drag-active'   : (bool, None, None, False,
+                           gobject.PARAM_READWRITE)
+    }
+    def __init__(self, **kwargs):
+        self._drag_active = False
+        self.align = ALIGN_TO_START
+
+        gobject.GObject.__init__(self, **kwargs)
+
+        scroll_left = _TrayScrollButton('go-left', _PREVIOUS_PAGE)
+        self.pack_start(scroll_left, False)
+
+        self._viewport = _TrayViewport(gtk.ORIENTATION_HORIZONTAL)
+        self.pack_start(self._viewport)
+        self._viewport.show()
+
+        scroll_right = _TrayScrollButton('go-right', _NEXT_PAGE)
+        self.pack_start(scroll_right, False)
+
+        scroll_left.viewport = self._viewport
+        scroll_right.viewport = self._viewport
+
+        if self.align == ALIGN_TO_END:
+            spacer = gtk.SeparatorToolItem()
+            spacer.set_size_request(0, 0)
+            spacer.props.draw = False
+            spacer.set_expand(True)
+            self._viewport.traybar.insert(spacer, 0)
+            spacer.show()
+
+    def do_set_property(self, pspec, value):
+        if pspec.name == 'align':
+            self.align = value
+        elif pspec.name == 'drag-active':
+            self._set_drag_active(value)
+        else:
+            raise AssertionError
+
+    def do_get_property(self, pspec):
+        if pspec.name == 'align':
+            return self.align
+        elif pspec.name == 'drag-active':
+            return self._drag_active
+        else:
+            raise AssertionError
+
+    def _set_drag_active(self, active):
+        if self._drag_active != active:
+            self._drag_active = active
+            if self._drag_active:
+                self._viewport.traybar.modify_bg(gtk.STATE_NORMAL,
+                        style.COLOR_BLACK.get_gdk_color())
+            else:
+                self._viewport.traybar.modify_bg(gtk.STATE_NORMAL, None)
+
+    def get_children(self):
+        children = self._viewport.traybar.get_children()[:]
+        if self.align == ALIGN_TO_END:
+            children = children[1:]
+        return children
+
+    def add_item(self, item, index=-1):
+        if self.align == ALIGN_TO_END and index > -1:
+            index += 1
+        self._viewport.traybar.insert(item, index)
+
+    def remove_item(self, item):
+        self._viewport.traybar.remove(item)
+
+    def get_item_index(self, item):
+        index = self._viewport.traybar.get_item_index(item)
+        if self.align == ALIGN_TO_END:
+            index -= 1
+        return index
+
+    def scroll_to_item(self, item):
+        self._viewport.scroll_to_item(item)
+
+class VTray(gtk.VBox):
+    __gtype_name__ = 'SugarVTray'
+
+    __gproperties__ = {
+        'align'         : (int, None, None, 0, 1, ALIGN_TO_START,
+                           gobject.PARAM_READWRITE |
+                           gobject.PARAM_CONSTRUCT_ONLY),
+        'drag-active'   : (bool, None, None, False,
+                           gobject.PARAM_READWRITE)
+    }
+
+    def __init__(self, **kwargs):
+        self._drag_active = False
+        self.align = ALIGN_TO_START
+
+        gobject.GObject.__init__(self, **kwargs)
+
+        scroll_up = _TrayScrollButton('go-up', _PREVIOUS_PAGE)
+        self.pack_start(scroll_up, False)
+
+        self._viewport = _TrayViewport(gtk.ORIENTATION_VERTICAL)
+        self.pack_start(self._viewport)
+        self._viewport.show()
+
+        scroll_down = _TrayScrollButton('go-down', _NEXT_PAGE)
+        self.pack_start(scroll_down, False)
+
+        scroll_up.viewport = self._viewport
+        scroll_down.viewport = self._viewport
+
+        if self.align == ALIGN_TO_END:
+            spacer = gtk.SeparatorToolItem()
+            spacer.set_size_request(0, 0)
+            spacer.props.draw = False
+            spacer.set_expand(True)
+            self._viewport.traybar.insert(spacer, 0)
+            spacer.show()
+
+    def do_set_property(self, pspec, value):
+        if pspec.name == 'align':
+            self.align = value
+        elif pspec.name == 'drag-active':
+            self._set_drag_active(value)
+        else:
+            raise AssertionError
+
+    def do_get_property(self, pspec):
+        if pspec.name == 'align':
+            return self.align
+        elif pspec.name == 'drag-active':
+            return self._drag_active
+        else:
+            raise AssertionError
+
+    def _set_drag_active(self, active):
+        if self._drag_active != active:
+            self._drag_active = active
+            if self._drag_active:
+                self._viewport.traybar.modify_bg(gtk.STATE_NORMAL,
+                        style.COLOR_BLACK.get_gdk_color())
+            else:
+                self._viewport.traybar.modify_bg(gtk.STATE_NORMAL, None)
+
+    def get_children(self):
+        children = self._viewport.traybar.get_children()[:]
+        if self.align == ALIGN_TO_END:
+            children = children[1:]
+        return children
+
+    def add_item(self, item, index=-1):
+        if self.align == ALIGN_TO_END and index > -1:
+            index += 1
+        self._viewport.traybar.insert(item, index)
+
+    def remove_item(self, item):
+        self._viewport.traybar.remove(item)
+
+    def get_item_index(self, item):
+        index = self._viewport.traybar.get_item_index(item)
+        if self.align == ALIGN_TO_END:
+            index -= 1
+        return index
+
+    def scroll_to_item(self, item):
+        self._viewport.scroll_to_item(item)
+
+class TrayButton(ToolButton):
+    def __init__(self, **kwargs):
+        ToolButton.__init__(self, **kwargs)
+
+class _IconWidget(gtk.EventBox):
+    __gtype_name__ = "SugarTrayIconWidget"
+
+    def __init__(self, icon_name=None, xo_color=None):
+        gtk.EventBox.__init__(self)
+
+        self.set_app_paintable(True)
+
+        self._icon = Icon(icon_name=icon_name, xo_color=xo_color,
+                          icon_size=gtk.ICON_SIZE_LARGE_TOOLBAR)
+        self.add(self._icon)
+        self._icon.show()
+
+    def do_expose_event(self, event):
+        palette = self.parent.palette
+        if palette and palette.is_up():
+            invoker = palette.props.invoker
+            invoker.draw_rectangle(event, palette)
+
+        gtk.EventBox.do_expose_event(self, event)
+
+    def get_icon(self):
+        return self._icon
+
+class TrayIcon(gtk.ToolItem):
+    __gtype_name__ = "SugarTrayIcon"
+
+    def __init__(self, icon_name=None, xo_color=None):
+        gtk.ToolItem.__init__(self)
+
+        self._icon_widget = _IconWidget(icon_name, xo_color)
+        self.add(self._icon_widget)
+        self._icon_widget.show()
+
+        self._palette_invoker = ToolInvoker(self)
+
+        self.set_size_request(style.GRID_CELL_SIZE, style.GRID_CELL_SIZE)
+
+        self.connect('destroy', self.__destroy_cb)
+
+    def __destroy_cb(self, icon):
+        if self._palette_invoker is not None:
+            self._palette_invoker.detach()
+
+    def create_palette(self):
+        return None
+
+    def get_palette(self):
+        return self._palette_invoker.palette
+
+    def set_palette(self, palette):
+        self._palette_invoker.palette = palette
+
+    palette = gobject.property(
+        type=object, setter=set_palette, getter=get_palette)
+
+    def get_palette_invoker(self):
+        return self._palette_invoker
+    
+    def set_palette_invoker(self, palette_invoker):
+        self._palette_invoker.detach()
+        self._palette_invoker = palette_invoker
+
+    palette_invoker = gobject.property(
+        type=object, setter=set_palette_invoker, getter=get_palette_invoker)
+
+    def get_icon(self):
+        return self._icon_widget.get_icon()
+    icon = property(get_icon, None)
+
--
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