qubes-installer-qubes-os/anaconda/widgets/src/SpokeWindow.c
2013-01-24 01:45:53 +01:00

211 lines
8.1 KiB
C

/*
* Copyright (C) 2011 Red Hat, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Chris Lumens <clumens@redhat.com>
*/
#include "BaseWindow.h"
#include "SpokeWindow.h"
#include "intl.h"
/**
* SECTION: SpokeWindow
* @title: AnacondaSpokeWindow
* @short_description: Window for displaying single spokes
*
* A #AnacondaSpokeWindow is a top-level window that displays a single spoke
* on the entire screen. Examples include the keyboard and language
* configuration screens off the first hub.
*
* The window consists of two areas:
*
* - A navigation area in the top of the screen, inherited from #AnacondaBaseWindow
* and augmented with a button in the upper left corner.
*
* - An action area in the rest of the screen, taking up a majority of the
* space. This is where widgets will be added and the user will do things.
*/
enum {
PROP_BUTTON_LABEL = 1
};
#define DEFAULT_BUTTON_LABEL _("_Done")
enum {
SIGNAL_BUTTON_CLICKED,
LAST_SIGNAL
};
static guint window_signals[LAST_SIGNAL] = { 0 };
struct _AnacondaSpokeWindowPrivate {
GtkWidget *button;
};
G_DEFINE_TYPE(AnacondaSpokeWindow, anaconda_spoke_window, ANACONDA_TYPE_BASE_WINDOW)
static void anaconda_spoke_window_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
static void anaconda_spoke_window_set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void anaconda_spoke_window_button_clicked(GtkButton *button,
AnacondaSpokeWindow *win);
static void anaconda_spoke_window_class_init(AnacondaSpokeWindowClass *klass) {
GObjectClass *object_class = G_OBJECT_CLASS(klass);
object_class->set_property = anaconda_spoke_window_set_property;
object_class->get_property = anaconda_spoke_window_get_property;
klass->button_clicked = NULL;
/**
* AnacondaSpokeWindow:button-label:
*
* The :button-label string is the text used to label the button displayed
* in the upper lefthand of the window. By default, this is a back button
* but could be anything else appropriate.
*
* Since: 1.0
*/
g_object_class_install_property(object_class,
PROP_BUTTON_LABEL,
g_param_spec_string("button-label",
P_("Button Label"),
P_("Label to appear on the upper left button"),
DEFAULT_BUTTON_LABEL,
G_PARAM_READWRITE));
/**
* AnacondaSpokeWindow::button-clicked:
* @window: the window that received the signal
*
* Emitted when the button in the upper left corner has been activated
* (pressed and released). This is commonly the button that takes the user
* back to the hub, but could do other things.
*
* Since: 1.0
*/
window_signals[SIGNAL_BUTTON_CLICKED] = g_signal_new("button-clicked",
G_TYPE_FROM_CLASS(object_class),
G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET(AnacondaSpokeWindowClass, button_clicked),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
g_type_class_add_private(object_class, sizeof(AnacondaSpokeWindowPrivate));
}
/**
* anaconda_spoke_window_new:
*
* Creates a new #AnacondaSpokeWindow, which is a window designed for
* displaying a single spoke, such as the keyboard or network configuration
* screens.
*
* Returns: A new #AnacondaSpokeWindow.
*/
GtkWidget *anaconda_spoke_window_new() {
return g_object_new(ANACONDA_TYPE_SPOKE_WINDOW, NULL);
}
static void anaconda_spoke_window_init(AnacondaSpokeWindow *win) {
GError *error;
GtkWidget *nav_area, *nav_box;
GdkPixbuf *pixbuf;
cairo_pattern_t *pattern;
cairo_surface_t *surface;
cairo_t *cr;
win->priv = G_TYPE_INSTANCE_GET_PRIVATE(win,
ANACONDA_TYPE_SPOKE_WINDOW,
AnacondaSpokeWindowPrivate);
/* Set the background gradient in the header. If we fail to load the
* background for any reason, just print an error message and display the
* header without an image.
*/
error = NULL;
pixbuf = gdk_pixbuf_new_from_file("/usr/share/anaconda/pixmaps/anaconda_spoke_header.png", &error);
if (!pixbuf) {
fprintf(stderr, "could not load header background: %s\n", error->message);
g_error_free(error);
} else {
nav_box = anaconda_base_window_get_nav_area_background_window(ANACONDA_BASE_WINDOW(win));
gtk_widget_set_size_request(nav_box, -1, gdk_pixbuf_get_height (pixbuf));
gtk_widget_realize(nav_box);
surface = gdk_window_create_similar_surface(gtk_widget_get_window(nav_box), CAIRO_CONTENT_COLOR_ALPHA,
gdk_pixbuf_get_width(pixbuf), gdk_pixbuf_get_height(pixbuf));
cr = cairo_create(surface);
gdk_cairo_set_source_pixbuf(cr, pixbuf, 0, 0);
cairo_paint(cr);
cairo_destroy(cr);
pattern = cairo_pattern_create_for_surface(surface);
cairo_surface_destroy(surface);
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
gdk_window_set_background_pattern(gtk_widget_get_window(nav_box), pattern);
}
/* Set some default properties. */
gtk_window_set_modal(GTK_WINDOW(win), TRUE);
/* Create the buttons. */
win->priv->button = gtk_button_new_with_mnemonic(DEFAULT_BUTTON_LABEL);
gtk_widget_set_halign(win->priv->button, GTK_ALIGN_START);
/* Hook up some signals for that button. The signal handlers here will
* just raise our own custom signals for the whole window.
*/
g_signal_connect(win->priv->button, "clicked",
G_CALLBACK(anaconda_spoke_window_button_clicked), win);
/* And then put the button into the navigation area. */
nav_area = anaconda_base_window_get_nav_area(ANACONDA_BASE_WINDOW(win));
gtk_grid_attach(GTK_GRID(nav_area), win->priv->button, 0, 1, 1, 1);
}
static void anaconda_spoke_window_button_clicked(GtkButton *button,
AnacondaSpokeWindow *win) {
g_signal_emit(win, window_signals[SIGNAL_BUTTON_CLICKED], 0);
}
static void anaconda_spoke_window_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) {
AnacondaSpokeWindow *widget = ANACONDA_SPOKE_WINDOW(object);
AnacondaSpokeWindowPrivate *priv = widget->priv;
switch(prop_id) {
case PROP_BUTTON_LABEL:
g_value_set_string (value, gtk_button_get_label(GTK_BUTTON(priv->button)));
break;
}
}
static void anaconda_spoke_window_set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) {
AnacondaSpokeWindow *widget = ANACONDA_SPOKE_WINDOW(object);
AnacondaSpokeWindowPrivate *priv = widget->priv;
switch(prop_id) {
case PROP_BUTTON_LABEL:
gtk_button_set_label(GTK_BUTTON(priv->button), g_value_get_string(value));
gtk_button_set_use_underline(GTK_BUTTON(priv->button), TRUE);
break;
}
}