Drei-Gänge-Menü

2016-11-07 22:10 | Anke (encarsia) | Auch verfügbar in: English

Inhalt

Glade
- Menü
- Toolbar
- Statusbar
Python
Listings
- Python
- Glade

Menüs, Toolbars und Statusbars

Das Menü-Element findet man unter den Containerelementen, es benötigt aber selbst eine leere Box. Es wird zunächst ein Standard-Menü angelegt, das sich bequem über "Edit..." in einem separaten Fenster bearbeiten lässt.

Sehr simpel erfolgt das Anlegen von Shortcuts im "Edit"-Fenster unter "Hierarchie > Eigenschaften > Tastenkürzel". Dort weist man der Tastenkombination ein Signal zu (im Falle von Menüeinträgen activate). Examplarisch wurden Shortcuts zum Beenden (Strg+Q) und zum Einblenden des About-Dialogs (Strg+I) angelegt.

Statusbar

In der Statusbar können kurze Meldungen/Nachrichten eingeblendet werden. Die Meldungen werden analog zu einer Liste behandelt, das Widget bietet die Funktionen push und pop.

Python

Um Nachrichten an die Statusbar zu senden, bedient man sich einfach der Funktion

widget.push(content_id, message)

Wenn man Meldungen ausschließlich "obendrauf" einblendet, kann man als content_id eine beliebige Zahl angeben, zum Beispiel 0.

Listings

Python

05_menutoolbar.py (Source)

#!/usr/bin/python
# -*- coding: utf-8 -*-

import gi
gi.require_version("Gtk", "3.0")
from gi.repository import Gtk


class Handler:

    def on_window_destroy(self, *args):
        Gtk.main_quit()

    def on_info_button_clicked(self, widget):
        x.sb_message("Öffne Info-Dialog")
        x.builder.get_object("about_dialog").show_all()

    def on_close_button_clicked(self, widget):
        x.sb_message("Schließe Info-Dialog")
        x.builder.get_object("about_dialog").hide_on_delete()

    def on_nothing_here(self, widget):
        x.sb_message("{}: Widget hat keine Funktion.".format(widget))


class Example:

    def __init__(self):

        self.builder = Gtk.Builder()
        self.builder.add_from_file("05_menutoolbar.glade")
        self.builder.connect_signals(Handler())

        window = self.builder.get_object("window")
        window.show_all()

    def sb_message(self,message):
        self.builder.get_object("statusbar").push(0, message)

    def main(self):
        Gtk.main()


x = Example()
x.main()

Glade

05_menutoolbar.glade (Source)

<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated with glade 3.20.0 -->
<interface>
  <requires lib="gtk+" version="3.20"/>
  <object class="GtkWindow" id="window">
    <property name="can_focus">False</property>
    <property name="resizable">False</property>
    <signal name="destroy" handler="on_window_destroy" swapped="no"/>
    <child>
      <object class="GtkBox">
        <property name="visible">True</property>
        <property name="can_focus">False</property>
        <property name="margin_bottom">9</property>
        <property name="orientation">vertical</property>
        <child>
          <object class="GtkMenuBar">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <child>
              <object class="GtkMenuItem">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label" translatable="yes">_Datei</property>
                <property name="use_underline">True</property>
                <child type="submenu">
                  <object class="GtkMenu">
                    <property name="visible">True</property>
                    <property name="can_focus">False</property>
                    <child>
                      <object class="GtkImageMenuItem">
                        <property name="label">gtk-new</property>
                        <property name="visible">True</property>
                        <property name="can_focus">False</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                        <signal name="activate" handler="on_nothing_here" swapped="no"/>
                      </object>
                    </child>
                    <child>
                      <object class="GtkImageMenuItem">
                        <property name="label">gtk-open</property>
                        <property name="visible">True</property>
                        <property name="can_focus">False</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                        <signal name="activate" handler="on_nothing_here" swapped="no"/>
                      </object>
                    </child>
                    <child>
                      <object class="GtkImageMenuItem">
                        <property name="label">gtk-save</property>
                        <property name="visible">True</property>
                        <property name="can_focus">False</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                        <signal name="activate" handler="on_nothing_here" swapped="no"/>
                      </object>
                    </child>
                    <child>
                      <object class="GtkImageMenuItem">
                        <property name="label">gtk-save-as</property>
                        <property name="visible">True</property>
                        <property name="can_focus">False</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                        <signal name="activate" handler="on_nothing_here" swapped="no"/>
                      </object>
                    </child>
                    <child>
                      <object class="GtkSeparatorMenuItem">
                        <property name="visible">True</property>
                        <property name="can_focus">False</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkImageMenuItem">
                        <property name="label">gtk-quit</property>
                        <property name="visible">True</property>
                        <property name="can_focus">False</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                        <signal name="activate" handler="on_window_destroy" swapped="no"/>
                        <accelerator key="q" signal="activate" modifiers="GDK_CONTROL_MASK"/>
                      </object>
                    </child>
                  </object>
                </child>
              </object>
            </child>
            <child>
              <object class="GtkMenuItem">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label" translatable="yes">_Hilfe</property>
                <property name="use_underline">True</property>
                <child type="submenu">
                  <object class="GtkMenu">
                    <property name="visible">True</property>
                    <property name="can_focus">False</property>
                    <child>
                      <object class="GtkImageMenuItem" id="menu_info">
                        <property name="label">gtk-about</property>
                        <property name="visible">True</property>
                        <property name="can_focus">False</property>
                        <property name="use_underline">True</property>
                        <property name="use_stock">True</property>
                        <signal name="activate" handler="on_info_button_clicked" swapped="no"/>
                        <accelerator key="i" signal="activate" modifiers="GDK_CONTROL_MASK"/>
                      </object>
                    </child>
                  </object>
                </child>
              </object>
            </child>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkToolbar">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="toolbar_style">both</property>
            <child>
              <object class="GtkToolButton">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label" translatable="yes">toolbutton</property>
                <property name="use_underline">True</property>
                <property name="stock_id">gtk-yes</property>
              </object>
              <packing>
                <property name="expand">False</property>
                <property name="homogeneous">True</property>
              </packing>
            </child>
            <child>
              <object class="GtkMenuToolButton">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label" translatable="yes">menu</property>
                <property name="use_underline">True</property>
                <property name="stock_id">gtk-print</property>
                <child type="menu">
                  <object class="GtkMenu">
                    <property name="visible">True</property>
                    <property name="can_focus">False</property>
                    <child>
                      <object class="GtkMenuItem">
                        <property name="visible">True</property>
                        <property name="can_focus">False</property>
                        <property name="label" translatable="yes">submenuitem 1</property>
                        <property name="use_underline">True</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkMenuItem">
                        <property name="visible">True</property>
                        <property name="can_focus">False</property>
                        <property name="label" translatable="yes">submenuitem 2</property>
                        <property name="use_underline">True</property>
                      </object>
                    </child>
                  </object>
                </child>
              </object>
              <packing>
                <property name="expand">False</property>
                <property name="homogeneous">True</property>
              </packing>
            </child>
            <child>
              <object class="GtkToggleToolButton">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label" translatable="yes">Toggle</property>
                <property name="use_underline">True</property>
              </object>
              <packing>
                <property name="expand">False</property>
                <property name="homogeneous">True</property>
              </packing>
            </child>
            <child>
              <object class="GtkSeparatorToolItem">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
              </object>
              <packing>
                <property name="expand">False</property>
                <property name="homogeneous">True</property>
              </packing>
            </child>
            <child>
              <object class="GtkRadioToolButton" id="tb_radio1">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label" translatable="yes">Radio</property>
                <property name="use_underline">True</property>
                <property name="active">True</property>
              </object>
              <packing>
                <property name="expand">False</property>
                <property name="homogeneous">True</property>
              </packing>
            </child>
            <child>
              <object class="GtkRadioToolButton">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label" translatable="yes">Radio</property>
                <property name="use_underline">True</property>
                <property name="active">True</property>
                <property name="group">tb_radio1</property>
              </object>
              <packing>
                <property name="expand">False</property>
                <property name="homogeneous">True</property>
              </packing>
            </child>
            <child>
              <object class="GtkRadioToolButton">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label" translatable="yes">Radio</property>
                <property name="use_underline">True</property>
                <property name="active">True</property>
                <property name="group">tb_radio1</property>
              </object>
              <packing>
                <property name="expand">False</property>
                <property name="homogeneous">True</property>
              </packing>
            </child>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkSeparator">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">3</property>
          </packing>
        </child>
        <child>
          <object class="GtkStatusbar" id="statusbar">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="margin_left">10</property>
            <property name="margin_right">10</property>
            <property name="margin_start">10</property>
            <property name="margin_end">10</property>
            <property name="margin_top">6</property>
            <property name="margin_bottom">6</property>
            <property name="orientation">vertical</property>
            <property name="spacing">2</property>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">4</property>
          </packing>
        </child>
      </object>
    </child>
    <child>
      <placeholder/>
    </child>
  </object>
  <object class="GtkAboutDialog" id="about_dialog">
    <property name="can_focus">False</property>
    <property name="title" translatable="yes">Info</property>
    <property name="resizable">False</property>
    <property name="modal">True</property>
    <property name="window_position">center-on-parent</property>
    <property name="destroy_with_parent">True</property>
    <property name="type_hint">dialog</property>
    <property name="deletable">False</property>
    <property name="transient_for">window</property>
    <property name="program_name">Info Dialog</property>
    <property name="version">0.1</property>
    <property name="comments" translatable="yes">Platz für mehr Blabla</property>
    <property name="website">www.example.com</property>
    <property name="logo_icon_name">image-missing</property>
    <child internal-child="vbox">
      <object class="GtkBox">
        <property name="can_focus">False</property>
        <property name="orientation">vertical</property>
        <property name="spacing">2</property>
        <child internal-child="action_area">
          <object class="GtkButtonBox">
            <property name="can_focus">False</property>
            <property name="layout_style">end</property>
            <child>
              <object class="GtkButton" id="close_button">
                <property name="label">gtk-close</property>
                <property name="visible">True</property>
                <property name="can_focus">True</property>
                <property name="receives_default">True</property>
                <property name="use_stock">True</property>
                <signal name="clicked" handler="on_close_button_clicked" swapped="no"/>
              </object>
              <packing>
                <property name="expand">True</property>
                <property name="fill">True</property>
                <property name="position">0</property>
              </packing>
            </child>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">False</property>
            <property name="position">0</property>
          </packing>
        </child>
      </object>
    </child>
    <child>
      <placeholder/>
    </child>
  </object>
</interface>

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