Viewing file:  stock_browser.py (8.44 KB) -rw-r--r--
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#!/usr/bin/env python
'''Stock Item and Icon Browser
This source code for this demo doesn't demonstrate anything particularly
useful in applications. The purpose of the "demo" is just to provide a
handy place to browse the available stock icons and stock items.
'''
# pygtk version: Maik Hertha <maik.hertha@berlin.de>
import gobject
import gtk
import re
def id_to_macro(stock_id):
if stock_id == '':
return ''
if stock_id.startswith('gtk'):
# gtk-foo-bar -> gtk.STOCK_FOO_BAR
macro = 'gtk.STOCK' + \
re.sub('-([^-]+)', lambda m:('_' + m.group(1).upper()), stock_id[3:])
else:
# demo-gtk-logo -> DEMO_GTK_LOGO as with custom icon-factories
macro = re.sub('([^-]+)-?', lambda m:('_' + m.group(1).upper()), stock_id)
macro = macro[1:] # there is a leading '_' always
return macro
class StockItemInfo(object):
def __init__(self, stock_id=''):
self.stock_id = stock_id
self.stock_item = None
self.small_icon = None
self.macro = id_to_macro(stock_id)
self.accel_str = ''
class StockItemDisplay(object):
def __init__(self):
self.type_label = None
self.macro_label = None
self.id_label = None
self.label_accel_label = None
self.icon_image = None
def get_largest_size(stockid):
''' Finds the largest size at which the given image stock id is
available. This would not be useful for a normal application.
'''
set = gtk.icon_factory_lookup_default(stockid)
best_size = gtk.ICON_SIZE_INVALID
best_pixels = 0
sizes = set.get_sizes()
n_sizes = len(sizes)
i = 0
while(i < n_sizes):
width, height = gtk.icon_size_lookup(sizes[i])
if(width * height > best_pixels):
best_size = sizes[i]
best_pixels = width * height
i += 1
return best_size
def macro_set_func_text(tree_column, cell, model, iter):
info = model.get_value(iter, 0)
cell.set_property("text", info.macro)
def id_set_func(tree_column, cell, model, iter):
info = model.get_value(iter, 0)
cell.set_property("text", info.stock_id)
def accel_set_func(tree_column, cell, model, iter):
info = model.get_value(iter, 0)
cell.set_property("text", info.accel_str)
def label_set_func(tree_column, cell, model, iter):
info = model.get_value(iter, 0)
cell.set_property("text", info.stock_item[1])
class StockItemAndIconBrowserDemo(gtk.Window):
def __init__(self, parent=None):
gtk.Window.__init__(self)
try:
self.set_screen(parent.get_screen())
except AttributeError:
self.connect('destroy', lambda *w: gtk.main_quit())
self.set_title(self.__class__.__name__)
self.set_default_size(-1, 500)
self.set_border_width(8)
hbox = gtk.HBox(False, 8)
self.add(hbox)
sw = gtk.ScrolledWindow()
sw.set_shadow_type(gtk.SHADOW_ETCHED_IN)
sw.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
hbox.pack_start(sw, False, False, 0)
model = self.__create_model()
treeview = gtk.TreeView(model)
sw.add(treeview)
column = gtk.TreeViewColumn()
column.set_title("Macro")
cell_renderer = gtk.CellRendererPixbuf()
column.pack_start(cell_renderer, False)
column.set_attributes(cell_renderer, stock_id=1)
cell_renderer = gtk.CellRendererText()
column.pack_start(cell_renderer, True)
column.set_cell_data_func(cell_renderer, macro_set_func_text)
treeview.append_column(column)
cell_renderer = gtk.CellRendererText()
treeview.insert_column_with_data_func(-1, "Label", cell_renderer, label_set_func)
cell_renderer = gtk.CellRendererText()
treeview.insert_column_with_data_func(-1, "Accel", cell_renderer, accel_set_func)
cell_renderer = gtk.CellRendererText()
treeview.insert_column_with_data_func(-1, "ID", cell_renderer, id_set_func)
align = gtk.Alignment(0.5, 0.0, 0.0, 0.0)
hbox.pack_end(align, False, False, 0)
frame = gtk.Frame("Selected Item")
align.add(frame)
vbox = gtk.VBox(False, 8)
vbox.set_border_width(4)
frame.add(vbox)
display = StockItemDisplay()
treeview.set_data("stock-display", display)
display.type_label = gtk.Label()
display.macro_label = gtk.Label()
display.id_label = gtk.Label()
display.label_accel_label = gtk.Label()
display.icon_image = gtk.Image(); # empty image
vbox.pack_start(display.type_label, False, False, 0)
vbox.pack_start(display.icon_image, False, False, 0)
vbox.pack_start(display.label_accel_label, False, False, 0)
vbox.pack_start(display.macro_label, False, False, 0)
vbox.pack_start(display.id_label, False, False, 0)
selection = treeview.get_selection()
selection.set_mode(gtk.SELECTION_SINGLE)
selection.connect("changed", self.on_selection_changed)
self.show_all()
def __create_model(self):
store = gtk.ListStore(
gobject.TYPE_PYOBJECT,
gobject.TYPE_STRING)
ids = gtk.stock_list_ids()
ids.sort()
for data in ids:
info = StockItemInfo(stock_id=data)
stock_item = gtk.stock_lookup(data)
if stock_item:
info.stock_item = stock_item
else:
# stock_id, label, modifier, keyval, translation_domain
info.stock_item =('', '', 0, 0, '')
# only show icons for stock IDs that have default icons
icon_set = gtk.icon_factory_lookup_default(info.stock_id)
if icon_set is None:
info.small_icon = None
else:
# See what sizes this stock icon really exists at
sizes = icon_set.get_sizes()
n_sizes = len(sizes)
# Use menu size if it exists, otherwise first size found
size = sizes[0];
i = 0;
while(i < n_sizes):
if(sizes[i] == gtk.ICON_SIZE_MENU):
size = gtk.ICON_SIZE_MENU
break
i += 1
info.small_icon = self.render_icon(info.stock_id, size)
if(size != gtk.ICON_SIZE_MENU):
# Make the result the proper size for our thumbnail
w, h = gtk.icon_size_lookup(gtk.ICON_SIZE_MENU)
scaled = info.small_icon.scale_simple(w, h, 'bilinear')
info.small_icon = scaled
if info.stock_item[3] == 0:
info.accel_str = ""
else:
info.accel_str = \
gtk.accelerator_name(info.stock_item[3], info.stock_item[2])
iter = store.append()
store.set(iter, 0, info, 1, info.stock_id)
return store
def on_selection_changed(self, selection):
treeview = selection.get_tree_view()
display = treeview.get_data("stock-display")
model, iter = selection.get_selected()
if iter:
info = model.get_value(iter, 0)
if(info.small_icon and info.stock_item[1]):
display.type_label.set_text("Icon and Item")
elif(info.small_icon):
display.type_label.set_text("Icon Only")
elif(info.stock_item[1]):
display.type_label.set_text("Item Only")
else:
display.type_label.set_text("???????")
display.macro_label.set_text(info.macro)
display.id_label.set_text(info.stock_id)
if(info.stock_item[1]):
s = "%s %s" % (info.stock_item[1], info.accel_str)
display.label_accel_label.set_text_with_mnemonic(s)
else:
display.label_accel_label.set_text("")
if(info.small_icon):
display.icon_image.set_from_stock(info.stock_id,
get_largest_size(info.stock_id))
else:
display.icon_image.set_from_pixbuf(None)
else:
display.type_label.set_text("No selected item")
display.macro_label.set_text("")
display.id_label.set_text("")
display.label_accel_label.set_text("")
display.icon_image.set_from_pixbuf(None)
def main():
StockItemAndIconBrowserDemo()
gtk.main()
if __name__ == '__main__':
main()
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