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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/gtk/gtk_chrome_button.h"
#include "base/basictypes.h"
#include "chrome/browser/gtk/nine_box.h"
#include "grit/app_resources.h"
namespace {
// The theme graphics for when the mouse is over the button.
NineBox* g_nine_box_prelight;
// The theme graphics for when the button is clicked.
NineBox* g_nine_box_active;
} // namespace
G_BEGIN_DECLS
#define GTK_CHROME_BUTTON_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o),\
GTK_TYPE_CHROME_BUTTON,\
GtkChromeButtonPrivate))
typedef struct _GtkChromeButtonPrivate GtkChromeButtonPrivate;
struct _GtkChromeButtonPrivate
{
int paint_state;
};
G_DEFINE_TYPE (GtkChromeButton, gtk_chrome_button, GTK_TYPE_BUTTON)
static gboolean gtk_chrome_button_expose(GtkWidget* widget,
GdkEventExpose* event);
static void gtk_chrome_button_class_init(GtkChromeButtonClass *button_class) {
GObjectClass *gobject_class = G_OBJECT_CLASS(button_class);
GtkWidgetClass* widget_class = (GtkWidgetClass*)button_class;
widget_class->expose_event = gtk_chrome_button_expose;
g_nine_box_prelight = new NineBox(
IDR_TEXTBUTTON_TOP_LEFT_H,
IDR_TEXTBUTTON_TOP_H,
IDR_TEXTBUTTON_TOP_RIGHT_H,
IDR_TEXTBUTTON_LEFT_H,
IDR_TEXTBUTTON_CENTER_H,
IDR_TEXTBUTTON_RIGHT_H,
IDR_TEXTBUTTON_BOTTOM_LEFT_H,
IDR_TEXTBUTTON_BOTTOM_H,
IDR_TEXTBUTTON_BOTTOM_RIGHT_H);
g_nine_box_active = new NineBox(
IDR_TEXTBUTTON_TOP_LEFT_P,
IDR_TEXTBUTTON_TOP_P,
IDR_TEXTBUTTON_TOP_RIGHT_P,
IDR_TEXTBUTTON_LEFT_P,
IDR_TEXTBUTTON_CENTER_P,
IDR_TEXTBUTTON_RIGHT_P,
IDR_TEXTBUTTON_BOTTOM_LEFT_P,
IDR_TEXTBUTTON_BOTTOM_P,
IDR_TEXTBUTTON_BOTTOM_RIGHT_P);
g_type_class_add_private(gobject_class, sizeof(GtkChromeButtonPrivate));
}
static void gtk_chrome_button_init(GtkChromeButton* button) {
GtkChromeButtonPrivate *priv = GTK_CHROME_BUTTON_GET_PRIVATE(button);
priv->paint_state = -1;
gtk_widget_set_app_paintable(GTK_WIDGET(button), TRUE);
GTK_WIDGET_UNSET_FLAGS(button, GTK_CAN_FOCUS);
}
static gboolean gtk_chrome_button_expose(GtkWidget* widget,
GdkEventExpose* event) {
GtkChromeButtonPrivate *priv = GTK_CHROME_BUTTON_GET_PRIVATE(widget);
int paint_state = priv->paint_state < 0 ?
GTK_WIDGET_STATE(widget) : priv->paint_state;
NineBox* nine_box = NULL;
if (paint_state == GTK_STATE_PRELIGHT)
nine_box = g_nine_box_prelight;
else if (paint_state == GTK_STATE_ACTIVE)
nine_box = g_nine_box_active;
// Only draw theme graphics if we have some.
if (nine_box)
nine_box->RenderToWidget(widget);
gtk_container_propagate_expose(GTK_CONTAINER(widget),
gtk_bin_get_child(GTK_BIN(widget)),
event);
return TRUE; // Don't propagate, we are the default handler.
}
GtkWidget* gtk_chrome_button_new(void) {
return GTK_WIDGET(g_object_new(GTK_TYPE_CHROME_BUTTON, NULL));
}
void gtk_chrome_button_set_paint_state(GtkChromeButton* button,
GtkStateType state) {
g_return_if_fail(GTK_IS_CHROME_BUTTON(button));
GtkChromeButtonPrivate *priv = GTK_CHROME_BUTTON_GET_PRIVATE(button);
priv->paint_state = state;
gtk_widget_queue_draw(GTK_WIDGET(button));
}
void gtk_chrome_button_unset_paint_state(GtkChromeButton* button) {
g_return_if_fail(GTK_IS_CHROME_BUTTON(button));
GtkChromeButtonPrivate *priv = GTK_CHROME_BUTTON_GET_PRIVATE(button);
priv->paint_state = -1;
gtk_widget_queue_draw(GTK_WIDGET(button));
}
G_END_DECLS
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