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/*
* File: selection.c
*
* Copyright 2004 Sebastian Geerken <s.geerken@ping.de>
*
* 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 is a widget with a very special purpose, for displaying titles within
* menues. It is set to inactive (so it cannot be focussed), and the text is
* centered horizontally.
*
* BTW, it is simple to change the look of menu titles, by putting the
* following into your ~/.gtkrc file:
*
* style "menu-title" = "default" {
* font = "-*-helvetica-medium-o-*-*-10-*-*-*-*-*-*-*"
* }
*
* widget "*GtkMenuTitle" style "menu-title"
*/
#include "src/gtk_menu_title.h"
#define BORDER_SPACING 3
static void Gtk_menu_title_class_init (GtkMenuTitleClass *klass);
static void Gtk_menu_title_init (GtkMenuTitle *menu_title);
static void Gtk_menu_title_destroy (GtkObject *object);
static void Gtk_menu_title_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void Gtk_menu_title_draw (GtkWidget *widget,
GdkRectangle *area);
static gint Gtk_menu_title_expose_event (GtkWidget *widget,
GdkEventExpose *event);
static GtkMenuItemClass *parent_class = NULL;
/*
* Standard Gtk+ function.
*/
GtkType a_Gtk_menu_title_get_type (void)
{
static GtkType type = 0;
if (!type) {
GtkTypeInfo info = {
"GtkMenuTitle",
sizeof (GtkMenuTitle),
sizeof (GtkMenuTitleClass),
(GtkClassInitFunc) Gtk_menu_title_class_init,
(GtkObjectInitFunc) Gtk_menu_title_init,
(GtkArgSetFunc) NULL,
(GtkArgGetFunc) NULL,
(GtkClassInitFunc)NULL
};
type = gtk_type_unique (gtk_menu_item_get_type (), &info);
}
return type;
}
/*
* Standard Gtk+ function.
*/
static void Gtk_menu_title_class_init (GtkMenuTitleClass *klass)
{
GtkWidgetClass *widget_class;
GtkObjectClass *object_class;
parent_class = (GtkMenuItemClass*) klass;
object_class = (GtkObjectClass*) klass;
object_class->destroy = Gtk_menu_title_destroy;
widget_class = (GtkWidgetClass*) klass;
widget_class->size_request = Gtk_menu_title_size_request;
widget_class->draw = Gtk_menu_title_draw;
widget_class->expose_event = Gtk_menu_title_expose_event;
}
/*
* Standard Gtk+ function.
*/
static void Gtk_menu_title_init (GtkMenuTitle *menu_title)
{
menu_title->label = NULL;
}
/*
* Return a new GtkMenuTitle.
*/
GtkWidget* a_Gtk_menu_title_new (const char *label)
{
GtkWidget *widget;
widget = gtk_type_new (a_Gtk_menu_title_get_type ());
GTK_MENU_TITLE(widget)->label = label ? g_strdup (label) : NULL;
gtk_widget_set_sensitive (widget, FALSE);
return widget;
}
/*
* Standard Gtk+ function.
*/
static void Gtk_menu_title_destroy (GtkObject *object)
{
GtkMenuTitle *menu_title;
menu_title = GTK_MENU_TITLE (object);
if (menu_title->label)
g_free (menu_title->label);
}
/*
* Standard Gtk+ function.
*/
static void Gtk_menu_title_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkMenuTitle *menu_title;
menu_title = GTK_MENU_TITLE (widget);
requisition->width = 2 * (GTK_CONTAINER (widget)->border_width +
widget->style->klass->xthickness +
BORDER_SPACING);
requisition->height = 2 * (GTK_CONTAINER (widget)->border_width +
widget->style->klass->ythickness);
if (menu_title->label) {
requisition->width +=
gdk_string_width (widget->style->font, GTK_MENU_TITLE(widget)->label);
requisition->height +=
widget->style->font->ascent + widget->style->font->descent;
}
}
/*
* Standard Gtk+ function.
*/
static void Gtk_menu_title_paint (GtkWidget *widget,
GdkRectangle *area)
{
GtkMenuTitle *menu_title;
gint x, y;
menu_title = GTK_MENU_TITLE (widget);
if (menu_title->label) {
x =
(widget->allocation.width - gdk_string_width (widget->style->font,
menu_title->label)) / 2;
y =
GTK_CONTAINER (widget)->border_width +
widget->style->klass->ythickness
+ widget->style->font->ascent;
/* We do not use widget->state, but instead GTK_STATE_NORMAL, since
* otherwise, the text would be rendered gray. */
gdk_draw_string (widget->window, widget->style->font,
widget->style->fg_gc[GTK_STATE_NORMAL], x, y,
menu_title->label);
}
}
/*
* Standard Gtk+ function.
*/
static void Gtk_menu_title_draw (GtkWidget *widget,
GdkRectangle *area)
{
if (GTK_WIDGET_DRAWABLE (widget))
Gtk_menu_title_paint (widget, area);
}
/*
* Standard Gtk+ function.
*/
static gint Gtk_menu_title_expose_event (GtkWidget *widget,
GdkEventExpose *event)
{
if (GTK_WIDGET_DRAWABLE (widget))
Gtk_menu_title_paint (widget, &event->area);
return TRUE;
}
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