gtk2/gtk/gtktoolbar.c

439 lines
11 KiB
C

/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
* GtkToolbar copyright (C) Federico Mena
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "gtkbutton.h"
#include "gtklabel.h"
#include "gtkvbox.h"
#include "gtktoolbar.h"
#define DEFAULT_SPACE_SIZE 5
typedef struct {
GtkWidget *button;
GtkWidget *icon;
GtkWidget *label;
} Child;
static void gtk_toolbar_class_init (GtkToolbarClass *class);
static void gtk_toolbar_init (GtkToolbar *toolbar);
static void gtk_toolbar_destroy (GtkObject *object);
static void gtk_toolbar_map (GtkWidget *widget);
static void gtk_toolbar_unmap (GtkWidget *widget);
static void gtk_toolbar_draw (GtkWidget *widget,
GdkRectangle *area);
static void gtk_toolbar_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_toolbar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_toolbar_add (GtkContainer *container,
GtkWidget *widget);
static GtkContainerClass *parent_class;
guint
gtk_toolbar_get_type(void)
{
static guint toolbar_type = 0;
if (!toolbar_type) {
GtkTypeInfo toolbar_info = {
"GtkToolbar",
sizeof(GtkToolbar),
sizeof(GtkToolbarClass),
(GtkClassInitFunc) gtk_toolbar_class_init,
(GtkObjectInitFunc) gtk_toolbar_init,
(GtkArgFunc) NULL
};
toolbar_type = gtk_type_unique(gtk_container_get_type(), &toolbar_info);
}
return toolbar_type;
}
static void
gtk_toolbar_class_init(GtkToolbarClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
object_class = (GtkObjectClass *) class;
widget_class = (GtkWidgetClass *) class;
container_class = (GtkContainerClass *) class;
parent_class = gtk_type_class(gtk_container_get_type());
object_class->destroy = gtk_toolbar_destroy;
widget_class->map = gtk_toolbar_map;
widget_class->unmap = gtk_toolbar_unmap;
widget_class->draw = gtk_toolbar_draw;
widget_class->size_request = gtk_toolbar_size_request;
widget_class->size_allocate = gtk_toolbar_size_allocate;
container_class->add = gtk_toolbar_add;
}
static void
gtk_toolbar_init(GtkToolbar *toolbar)
{
GTK_WIDGET_SET_FLAGS(toolbar, GTK_NO_WINDOW);
toolbar->num_children = 0;
toolbar->children = NULL;
toolbar->orientation = GTK_ORIENTATION_HORIZONTAL;
toolbar->style = GTK_TOOLBAR_ICONS;
toolbar->space_size = DEFAULT_SPACE_SIZE;
}
GtkWidget *
gtk_toolbar_new(GtkOrientation orientation,
GtkToolbarStyle style)
{
GtkToolbar *toolbar;
toolbar = gtk_type_new(gtk_toolbar_get_type());
toolbar->orientation = orientation;
toolbar->style = style;
return GTK_WIDGET(toolbar);
}
static void
gtk_toolbar_destroy(GtkObject *object)
{
GtkToolbar *toolbar;
GList *children;
Child *child;
g_return_if_fail(object != NULL);
g_return_if_fail(GTK_IS_TOOLBAR(object));
toolbar = GTK_TOOLBAR(object);
for (children = toolbar->children; children; children = children->next) {
child = children->data;
/* NULL child means it is a space in the toolbar, rather than a button */
if (child) {
child->button->parent = NULL;
gtk_object_unref(GTK_OBJECT(child->button));
gtk_widget_destroy(child->button);
g_free(child);
}
}
g_list_free(toolbar->children);
if (GTK_OBJECT_CLASS(parent_class)->destroy)
(* GTK_OBJECT_CLASS(parent_class)->destroy) (object);
}
static void
gtk_toolbar_map(GtkWidget *widget)
{
GtkToolbar *toolbar;
GList *children;
Child *child;
g_return_if_fail(widget != NULL);
g_return_if_fail(GTK_IS_TOOLBAR(widget));
toolbar = GTK_TOOLBAR(widget);
GTK_WIDGET_SET_FLAGS(toolbar, GTK_MAPPED);
for (children = toolbar->children; children; children = children->next) {
child = children->data;
if (child && GTK_WIDGET_VISIBLE(child->button) && !GTK_WIDGET_MAPPED(child->button))
gtk_widget_map(child->button);
}
}
static void
gtk_toolbar_unmap(GtkWidget *widget)
{
GtkToolbar *toolbar;
GList *children;
Child *child;
g_return_if_fail(widget != NULL);
g_return_if_fail(GTK_IS_TOOLBAR(widget));
toolbar = GTK_TOOLBAR(widget);
GTK_WIDGET_UNSET_FLAGS(toolbar, GTK_MAPPED);
for (children = toolbar->children; children; children = children->next) {
child = children->data;
if (child && GTK_WIDGET_VISIBLE(child->button) && GTK_WIDGET_MAPPED(child->button))
gtk_widget_unmap(child->button);
}
}
static void
gtk_toolbar_draw(GtkWidget *widget,
GdkRectangle *area)
{
GtkToolbar *toolbar;
GList *children;
Child *child;
GdkRectangle child_area;
g_return_if_fail(widget != NULL);
g_return_if_fail(GTK_IS_TOOLBAR(widget));
if (GTK_WIDGET_DRAWABLE(widget)) {
toolbar = GTK_TOOLBAR(widget);
for (children = toolbar->children; children; children = children->next) {
child = children->data;
if (child && gtk_widget_intersect(child->button, area, &child_area))
gtk_widget_draw(child->button, &child_area);
}
}
}
static void
gtk_toolbar_size_request(GtkWidget *widget,
GtkRequisition *requisition)
{
GtkToolbar *toolbar;
GList *children;
Child *child;
gint nchildren;
g_return_if_fail(widget != NULL);
g_return_if_fail(GTK_IS_TOOLBAR(widget));
g_return_if_fail(requisition != NULL);
toolbar = GTK_TOOLBAR(widget);
requisition->width = GTK_CONTAINER(toolbar)->border_width * 2;
requisition->height = GTK_CONTAINER(toolbar)->border_width * 2;
nchildren = 0;
toolbar->child_maxw = 0;
toolbar->child_maxh = 0;
for (children = toolbar->children; children; children = children->next) {
child = children->data;
if (child) {
nchildren++;
gtk_widget_size_request(child->button, &child->button->requisition);
toolbar->child_maxw = MAX(toolbar->child_maxw, child->button->requisition.width);
toolbar->child_maxh = MAX(toolbar->child_maxh, child->button->requisition.height);
} else
/* NULL child means it is a space in the toolbar, rather than a button */
if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
requisition->width += toolbar->space_size;
else
requisition->height += toolbar->space_size;
}
if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL) {
requisition->width += nchildren * toolbar->child_maxw;
requisition->height += toolbar->child_maxh;
} else {
requisition->width += toolbar->child_maxw;
requisition->height += nchildren * toolbar->child_maxh;
}
}
static void
gtk_toolbar_size_allocate(GtkWidget *widget,
GtkAllocation *allocation)
{
GtkToolbar *toolbar;
GList *children;
Child *child;
GtkAllocation alloc;
g_return_if_fail(widget != NULL);
g_return_if_fail(GTK_IS_TOOLBAR(widget));
g_return_if_fail(allocation != NULL);
toolbar = GTK_TOOLBAR(widget);
widget->allocation = *allocation;
alloc.x = allocation->x + GTK_CONTAINER(toolbar)->border_width;
alloc.y = allocation->y + GTK_CONTAINER(toolbar)->border_width;
alloc.width = toolbar->child_maxw;
alloc.height = toolbar->child_maxh;
for (children = toolbar->children; children; children = children->next) {
child = children->data;
if (child) {
gtk_widget_size_allocate(child->button, &alloc);
if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
alloc.x += toolbar->child_maxw;
else
alloc.y += toolbar->child_maxh;
} else
/* NULL child means it is a space in the toolbar, rather than a button */
if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
alloc.x += toolbar->space_size;
else
alloc.y += toolbar->space_size;
}
}
static void
gtk_toolbar_add(GtkContainer *container,
GtkWidget *widget)
{
g_warning("gtk_toolbar_add: use gtk_toolbar_add_item() instead!");
}
void
gtk_toolbar_append_item(GtkToolbar *toolbar,
const char *text,
const char *tooltip_text,
GtkPixmap *icon)
{
gtk_toolbar_insert_item(toolbar, text, tooltip_text, icon, toolbar->num_children);
}
void
gtk_toolbar_prepend_item(GtkToolbar *toolbar,
const char *text,
const char *tooltip_text,
GtkPixmap *icon)
{
gtk_toolbar_insert_item(toolbar, text, tooltip_text, icon, 0);
}
void
gtk_toolbar_insert_item(GtkToolbar *toolbar,
const char *text,
const char *tooltip_text,
GtkPixmap *icon,
gint position)
{
Child *child;
GtkWidget *vbox;
g_return_if_fail(toolbar != NULL);
g_return_if_fail(GTK_IS_TOOLBAR(toolbar));
child = g_new(Child, 1);
child->button = gtk_button_new();
if (text)
child->label = gtk_label_new(text);
else
child->label = NULL;
child->icon = GTK_WIDGET(icon);
vbox = gtk_vbox_new(FALSE, 0);
gtk_container_add(GTK_CONTAINER(child->button), vbox);
gtk_widget_show(vbox);
if (child->icon)
gtk_box_pack_start(GTK_BOX(vbox), child->icon, FALSE, FALSE, 0);
if (child->label)
gtk_box_pack_start(GTK_BOX(vbox), child->label, FALSE, FALSE, 0);
switch (toolbar->style) {
case GTK_TOOLBAR_ICONS:
if (child->icon)
gtk_widget_show(child->icon);
break;
case GTK_TOOLBAR_TEXT:
if (child->label)
gtk_widget_show(child->label);
break;
case GTK_TOOLBAR_BOTH:
if (child->icon)
gtk_widget_show(child->icon);
if (child->label)
gtk_widget_show(child->label);
break;
default:
g_assert_not_reached();
}
gtk_widget_show(child->button);
toolbar->children = g_list_insert(toolbar->children, child, position);
toolbar->num_children++;
gtk_widget_set_parent(child->button, GTK_WIDGET(toolbar));
if (GTK_WIDGET_VISIBLE(toolbar)) {
if (GTK_WIDGET_REALIZED(toolbar)
&& !GTK_WIDGET_REALIZED(child->button))
gtk_widget_realize(child->button);
if (GTK_WIDGET_MAPPED(toolbar)
&& !GTK_WIDGET_MAPPED(child->button))
gtk_widget_map(child->button);
}
if (GTK_WIDGET_VISIBLE(child->button) && GTK_WIDGET_VISIBLE(toolbar))
gtk_widget_queue_resize(child->button);
}
void
gtk_toolbar_append_space(GtkToolbar *toolbar)
{
gtk_toolbar_insert_space(toolbar, toolbar->num_children);
}
void
gtk_toolbar_prepend_space(GtkToolbar *toolbar)
{
gtk_toolbar_insert_space(toolbar, 0);
}
void
gtk_toolbar_insert_space(GtkToolbar *toolbar,
gint position)
{
g_return_if_fail(toolbar != NULL);
g_return_if_fail(GTK_IS_TOOLBAR(toolbar));
/* NULL child means it is a space in the toolbar, rather than a button */
toolbar->children = g_list_insert(toolbar->children, NULL, position);
if (GTK_WIDGET_VISIBLE(toolbar))
gtk_widget_queue_resize(GTK_WIDGET(toolbar));
}