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<?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" xmlns:xi="http://www.w3.org/2001/XInclude" type="guide" style="task" id="toolbar.py" xml:lang="sv">
<info>
<title type="text">Toolbar (Python)</title>
<link type="guide" xref="beginner.py#menu-combo-toolbar"/>
<link type="seealso" xref="grid.py"/>
<link type="next" xref="tooltip.py"/>
<revision version="0.1" date="2012-06-05" status="draft"/>
<credit type="author copyright">
<name>Marta Maria Casetti</name>
<email its:translate="no">mmcasetti@gmail.com</email>
<years>2012</years>
</credit>
<desc>En rad med knappar och andra komponenter</desc>
<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
<mal:name>Sebastian Rasmussen</mal:name>
<mal:email>sebras@gmail.com</mal:email>
<mal:years>2019</mal:years>
</mal:credit>
<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
<mal:name>Anders Jonsson</mal:name>
<mal:email>anders.jonsson@norsjovallen.se</mal:email>
<mal:years>2021</mal:years>
</mal:credit>
</info>
<title>Toolbar</title>
<media type="image" mime="image/png" src="media/toolbar.png"/>
<p>Ett exempel på ett verktygsfält med knappar (från standardikoner).</p>
<links type="section"/>
<section id="code">
<title>Kod som använts för att generera detta exempel</title>
<code mime="text/x-python" style="numbered">from gi.repository import Gtk
from gi.repository import Gdk
from gi.repository import Gio
import sys
class MyWindow(Gtk.ApplicationWindow):
def __init__(self, app):
Gtk.Window.__init__(self, title="Toolbar Example", application=app)
self.set_default_size(400, 200)
# a grid to attach the toolbar
grid = Gtk.Grid()
# a toolbar created in the method create_toolbar (see below)
toolbar = self.create_toolbar()
# with extra horizontal space
toolbar.set_hexpand(True)
# show the toolbar
toolbar.show()
# attach the toolbar to the grid
grid.attach(toolbar, 0, 0, 1, 1)
# add the grid to the window
self.add(grid)
# create the actions that control the window and connect their signal to a
# callback method (see below):
# undo
undo_action = Gio.SimpleAction.new("undo", None)
undo_action.connect("activate", self.undo_callback)
self.add_action(undo_action)
# fullscreen
fullscreen_action = Gio.SimpleAction.new("fullscreen", None)
fullscreen_action.connect("activate", self.fullscreen_callback)
self.add_action(fullscreen_action)
# a method to create the toolbar
def create_toolbar(self):
# a toolbar
toolbar = Gtk.Toolbar()
# which is the primary toolbar of the application
toolbar.get_style_context().add_class(Gtk.STYLE_CLASS_PRIMARY_TOOLBAR)
# create a button for the "new" action, with a stock image
new_button = Gtk.ToolButton.new_from_stock(Gtk.STOCK_NEW)
# label is shown
new_button.set_is_important(True)
# insert the button at position in the toolbar
toolbar.insert(new_button, 0)
# show the button
new_button.show()
# set the name of the action associated with the button.
# The action controls the application (app)
new_button.set_action_name("app.new")
# button for the "open" action
open_button = Gtk.ToolButton.new_from_stock(Gtk.STOCK_OPEN)
open_button.set_is_important(True)
toolbar.insert(open_button, 1)
open_button.show()
open_button.set_action_name("app.open")
# button for the "undo" action
undo_button = Gtk.ToolButton.new_from_stock(Gtk.STOCK_UNDO)
undo_button.set_is_important(True)
toolbar.insert(undo_button, 2)
undo_button.show()
undo_button.set_action_name("win.undo")
# button for the "fullscreen/leave fullscreen" action
self.fullscreen_button = Gtk.ToolButton.new_from_stock(
Gtk.STOCK_FULLSCREEN)
self.fullscreen_button.set_is_important(True)
toolbar.insert(self.fullscreen_button, 3)
self.fullscreen_button.set_action_name("win.fullscreen")
# return the complete toolbar
return toolbar
# callback method for undo
def undo_callback(self, action, parameter):
print("You clicked \"Undo\".")
# callback method for fullscreen / leave fullscreen
def fullscreen_callback(self, action, parameter):
# check if the state is the same as Gdk.WindowState.FULLSCREEN, which
# is a bit flag
is_fullscreen = self.get_window().get_state(
) & Gdk.WindowState.FULLSCREEN != 0
if not is_fullscreen:
self.fullscreen_button.set_stock_id(Gtk.STOCK_LEAVE_FULLSCREEN)
self.fullscreen()
else:
self.fullscreen_button.set_stock_id(Gtk.STOCK_FULLSCREEN)
self.unfullscreen()
class MyApplication(Gtk.Application):
def __init__(self):
Gtk.Application.__init__(self)
def do_activate(self):
win = MyWindow(self)
win.show_all()
def do_startup(self):
Gtk.Application.do_startup(self)
# create the actions that control the window and connect their signal to a
# callback method (see below):
# new
new_action = Gio.SimpleAction.new("new", None)
new_action.connect("activate", self.new_callback)
app.add_action(new_action)
# open
open_action = Gio.SimpleAction.new("open", None)
open_action.connect("activate", self.open_callback)
app.add_action(open_action)
# callback method for new
def new_callback(self, action, parameter):
print("You clicked \"New\".")
# callback method for open
def open_callback(self, action, parameter):
print("You clicked \"Open\".")
app = MyApplication()
exit_status = app.run(sys.argv)
sys.exit(exit_status)
</code>
</section>
<section id="methods">
<title>Användbara metoder för en Toolbar-komponent</title>
<p>På rad 32 ansluts signalen <code>"activate"</code> från åtgärden <code>undo_action</code> till återanropsfunktionen <code>undo_callback()</code> med <code><var>åtgärd</var>.connect(<var>signal</var>, <var>återanropsfunktion</var>)</code>. Se <link xref="signals-callbacks.py"/> för en utförligare förklaring.</p>
<list>
<item><p>Use <code>insert(tool_item, position)</code> to insert the <code>tool_item</code> at <code>position</code>. If <code>position</code> is negative, the item is appended at the end of the toolbar.</p></item>
<item><p><code>get_item_index(tool_item)</code> retrieves the position of <code>tool_item</code> on the toolbar.</p></item>
<item><p><code>get_n_items()</code> returnerar antalet objekt i verktygsfältet; <code>get_nth_item(position)</code> returnerar objektet på positionen <code>position</code>.</p></item>
<item><p>Om verktygsfältet inte har plats för alla menyobjekt, och <code>set_show_arrow(True)</code>, så kommer objekten som inte har plats att visas via en överspillsmeny.</p></item>
<item><p><code>set_icon_size(icon_size)</code> sets the size of icons in the toolbar; <code>icon_size</code> can be one of <code>Gtk.IconSize.INVALID, Gtk.IconSize.MENU, Gtk.IconSize.SMALL_TOOLBAR, Gtk.IconSize.LARGE_TOOLBAR, Gtk.IconSize.BUTTON, Gtk.IconSize.DND, Gtk.IconSize.DIALOG</code>. This should be used only for special-purpose toolbars, normal application toolbars should respect user preferences for the size of icons. <code>unset_icon_size()</code> unsets the preferences set with <code>set_icon_size(icon_size)</code>, so that user preferences are used to determine the icon size.</p></item>
<item><p><code>set_style(style)</code>, where <code>style</code> is one of <code>Gtk.ToolbarStyle.ICONS, Gtk.ToolbarStyle.TEXT, Gtk.ToolbarStyle.BOTH, Gtk.ToolbarStyle.BOTH_HORIZ</code>, sets if the toolbar shows only icons, only text, or both (vertically stacked or alongside each other). To let user preferences determine the toolbar style, and unset a toolbar style so set, use <code>unset_style()</code>.</p></item>
</list>
</section>
<section id="reference">
<title>API-referenser</title>
<p>I detta exempel använde vi följande:</p>
<list>
<item><p><link href="http://developer.gnome.org/gtk3/unstable/GtkToolbar.html">GtkToolbar</link></p></item>
<item><p><link href="http://developer.gnome.org/gtk3/unstable/GtkToolButton.html">GtkToolButton</link></p></item>
<item><p><link href="http://developer.gnome.org/gtk3/unstable/GtkToolItem.html">GtkToolItem</link></p></item>
<item><p><link href="http://developer.gnome.org/gtk3/unstable/gtk3-Stock-Items.html">Standardobjekt</link></p></item>
<item><p><link href="http://developer.gnome.org/gtk3/unstable/GtkActionable.html">GtkActionable</link></p></item>
<item><p><link href="http://developer.gnome.org/gtk3/unstable/GtkWidget.html">GtkWidget</link></p></item>
<item><p><link href="http://developer.gnome.org/gdk3/unstable/gdk3-Event-Structures.html#GdkEventWindowState">Event Structures</link></p></item>
</list>
</section>
</page>
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