def __init__(self, entry):
if not isinstance(entry, gtk.Entry):
raise TypeError("entry must be a gtk.Entry")
self._constructed = False
self._pixbuf = None
self._pixw = 1
self._pixh = 1
self._text_area = None
self._text_area_pos = (0, 0)
self._icon_win = None
self._entry = entry
self._tooltip = Tooltip(self)
self._locked = False
entry.connect('enter-notify-event',
self._on_entry__enter_notify_event)
entry.connect('leave-notify-event',
self._on_entry__leave_notify_event)
entry.connect('notify::xalign',
self._on_entry__notify_xalign)
self._update_position()
class IconEntry(object):
"""
Helper object for rendering an icon in a GtkEntry
"""
def __init__(self, entry):
if not isinstance(entry, gtk.Entry):
raise TypeError("entry must be a gtk.Entry")
self._constructed = False
self._pixbuf = None
self._pixw = 1
self._pixh = 1
self._text_area = None
self._text_area_pos = (0, 0)
self._icon_win = None
self._entry = entry
self._tooltip = Tooltip(self)
self._locked = False
entry.connect('enter-notify-event',
self._on_entry__enter_notify_event)
entry.connect('leave-notify-event',
self._on_entry__leave_notify_event)
entry.connect('notify::xalign',
self._on_entry__notify_xalign)
self._update_position()
def _on_entry__notify_xalign(self, entry, pspec):
self._update_position()
def _on_entry__enter_notify_event(self, entry, event):
icon_win = self.get_icon_window()
if event.window != icon_win:
return
self._tooltip.display(entry)
def _on_entry__leave_notify_event(self, entry, event):
if event.window != self.get_icon_window():
return
self._tooltip.hide()
def set_tooltip(self, text):
self._tooltip.set_text(text)
def get_icon_window(self):
return self._icon_win
def set_pixbuf(self, pixbuf):
"""
Sets a pixbuf or None to reset.
@param pixbuf: a gdk.Pixbuf or None
"""
entry = self._entry
if not isinstance(entry.get_toplevel(), gtk.Window):
# For widgets in SlaveViews, wait until they're attached
# to something visible, then set the pixbuf
entry.connect_object('realize', self.set_pixbuf, pixbuf)
return
if pixbuf:
if not isinstance(pixbuf, gdk.Pixbuf):
raise TypeError("pixbuf must be a GdkPixbuf")
else:
# Turning of the icon should also restore the background
entry.modify_base(gtk.STATE_NORMAL, None)
if not self._pixbuf:
return
self._pixbuf = pixbuf
if pixbuf:
self._pixw = pixbuf.get_width()
self._pixh = pixbuf.get_height()
else:
self._pixw = self._pixh = 0
win = self._icon_win
if not win:
self.construct()
win = self._icon_win
self.resize_windows()
# XXX: Why?
if win:
if not pixbuf:
win.hide()
else:
win.show()
self._recompute()
entry.queue_draw()
def construct(self):
if self._constructed:
return
entry = self._entry
if not entry.flags() & gtk.REALIZED:
entry.realize()
# Hack: Save a reference to the text area, now when its created
self._text_area = entry.window.get_children()[0]
self._text_area_pos = self._text_area.get_position()
# PyGTK should allow default values for most of the values here.
win = gtk.gdk.Window(entry.window,
self._pixw, self._pixh,
gtk.gdk.WINDOW_CHILD,
(gtk.gdk.ENTER_NOTIFY_MASK |
gtk.gdk.LEAVE_NOTIFY_MASK),
gtk.gdk.INPUT_OUTPUT,
'icon window',
0, 0,
entry.get_visual(),
entry.get_colormap(),
gtk.gdk.Cursor(entry.get_display(), gdk.LEFT_PTR),
'', '', True)
self._icon_win = win
win.set_user_data(entry)
win.set_background(entry.style.base[entry.state])
self._constructed = True
def deconstruct(self):
if self._icon_win:
# This is broken on PyGTK 2.6.x
try:
self._icon_win.set_user_data(None)
except:
pass
# Destroy not needed, called by the GC.
self._icon_win = None
def update_background(self, color):
if self._locked:
return
if not self._icon_win:
return
self._entry.modify_base(gtk.STATE_NORMAL, color)
self.draw_pixbuf()
def get_background(self):
return self._entry.style.base[gtk.STATE_NORMAL]
def resize_windows(self):
if not self._pixbuf:
return
icony = iconx = 4
# Make space for the icon, both windows
winw = self._entry.window.get_size()[0]
textw, texth = self._text_area.get_size()
textw = winw - self._pixw - (iconx + icony)
if self._pos == gtk.POS_LEFT:
textx, texty = self._text_area_pos
textx += iconx + self._pixw
# FIXME: Why is this needed. Focus padding?
# The text jumps without this
textw -= 2
self._text_area.move_resize(textx, texty, textw, texth)
self._recompute()
elif self._pos == gtk.POS_RIGHT:
self._text_area.resize(textw, texth)
iconx += textw
icon_win = self._icon_win
# XXX: Why?
if not icon_win:
return
# If the size of the window is large enough, resize and move it
# Otherwise just move it to the right side of the entry
if icon_win.get_size() != (self._pixw, self._pixh):
icon_win.move_resize(iconx, icony, self._pixw, self._pixh)
else:
icon_win.move(iconx, icony)
def draw_pixbuf(self):
if not self._pixbuf:
return
win = self._icon_win
# XXX: Why?
if not win:
return
# Draw background first
color = self._entry.style.base_gc[self._entry.state]
win.draw_rectangle(color, True,
0, 0, self._pixw, self._pixh)
# If sensitive draw the icon, regardless of the window emitting the
# event since makes it a bit smoother on resize
if self._entry.flags() & gtk.SENSITIVE:
win.draw_pixbuf(None, self._pixbuf, 0, 0, 0, 0,
self._pixw, self._pixh)
def _update_position(self):
if self._entry.get_property('xalign') > 0.5:
self._pos = gtk.POS_LEFT
else:
self._pos = gtk.POS_RIGHT
def _recompute(self):
# Protect against re-entrancy when inserting text, happens in DateEntry
if self._locked:
return
self._locked = True
# Hack: This triggers a .recompute() which is private
visibility = self._entry.get_visibility()
self._entry.set_visibility(not visibility)
self._entry.set_visibility(visibility)
# Another option would be to call insert_text, however it
# emits the signal ::changed which is not desirable.
#self._entry.insert_text('')
self._locked = False