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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/custom_button.h"
#include "base/basictypes.h"
#include "base/logging.h"
#include "chrome/common/resource_bundle.h"
#include "chrome/browser/gtk/nine_box.h"
#include "grit/theme_resources.h"
CustomDrawButton::CustomDrawButton(int normal_id,
int active_id, int highlight_id, int depressed_id) {
widget_ = gtk_button_new();
// Load the button images from the resource bundle.
ResourceBundle& rb = ResourceBundle::GetSharedInstance();
pixbufs_[GTK_STATE_NORMAL] = normal_id ? rb.LoadPixbuf(normal_id) : NULL;
pixbufs_[GTK_STATE_ACTIVE] = active_id ? rb.LoadPixbuf(active_id) : NULL;
pixbufs_[GTK_STATE_PRELIGHT] =
highlight_id ? rb.LoadPixbuf(highlight_id) : NULL;
pixbufs_[GTK_STATE_SELECTED] = NULL;
pixbufs_[GTK_STATE_INSENSITIVE] =
depressed_id ? rb.LoadPixbuf(depressed_id) : NULL;
gtk_widget_set_size_request(widget_,
gdk_pixbuf_get_width(pixbufs_[0]),
gdk_pixbuf_get_height(pixbufs_[0]));
gtk_widget_set_app_paintable(widget_, TRUE);
// We effectively double-buffer by virtue of having only one image...
gtk_widget_set_double_buffered(widget_, FALSE);
g_signal_connect(G_OBJECT(widget_), "expose-event",
G_CALLBACK(OnExpose), this);
}
CustomDrawButton::~CustomDrawButton() {
for (size_t i = 0; i < arraysize(pixbufs_); ++i) {
if (pixbufs_[i])
gdk_pixbuf_unref(pixbufs_[i]);
}
}
// static
gboolean CustomDrawButton::OnExpose(GtkWidget* widget, GdkEventExpose* e,
CustomDrawButton* button) {
GdkPixbuf* pixbuf = button->pixbufs_[GTK_WIDGET_STATE(widget)];
// Fall back to the default image if we don't have one for this state.
if (!pixbuf)
pixbuf = button->pixbufs_[GTK_STATE_NORMAL];
if (!pixbuf)
return FALSE;
gdk_draw_pixbuf(widget->window,
widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
pixbuf,
0, 0,
widget->allocation.x, widget->allocation.y, -1, -1,
GDK_RGB_DITHER_NONE, 0, 0);
return TRUE;
}
CustomContainerButton::CustomContainerButton() {
GdkPixbuf* images[9];
int i = 0;
ResourceBundle& rb = ResourceBundle::GetSharedInstance();
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_TOP_LEFT_H);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_TOP_H);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_TOP_RIGHT_H);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_LEFT_H);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_CENTER_H);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_RIGHT_H);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_BOTTOM_LEFT_H);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_BOTTOM_H);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_BOTTOM_RIGHT_H);
nine_box_prelight_.reset(new NineBox(images));
i = 0;
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_TOP_LEFT_P);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_TOP_P);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_TOP_RIGHT_P);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_LEFT_P);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_CENTER_P);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_RIGHT_P);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_BOTTOM_LEFT_P);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_BOTTOM_P);
images[i++] = rb.LoadPixbuf(IDR_TEXTBUTTON_BOTTOM_RIGHT_P);
nine_box_active_.reset(new NineBox(images));
widget_ = gtk_button_new();
gtk_widget_set_app_paintable(widget_, TRUE);
g_signal_connect(G_OBJECT(widget_), "expose-event",
G_CALLBACK(OnExpose), this);
}
CustomContainerButton::~CustomContainerButton() {
}
// static
gboolean CustomContainerButton::OnExpose(GtkWidget* widget, GdkEventExpose* e,
CustomContainerButton* button) {
NineBox* nine_box = NULL;
if (GTK_WIDGET_STATE(widget) == GTK_STATE_PRELIGHT)
nine_box = button->nine_box_prelight_.get();
else if (GTK_WIDGET_STATE(widget) == GTK_STATE_ACTIVE)
nine_box = button->nine_box_active_.get();
// Only draw theme graphics if we have some.
if (nine_box) {
GdkPixbuf* pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB,
true, // alpha
8, // bits per channel
widget->allocation.width,
widget->allocation.height);
nine_box->RenderToPixbuf(pixbuf);
gdk_draw_pixbuf(widget->window,
widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
pixbuf,
0, 0,
widget->allocation.x, widget->allocation.y, -1, -1,
GDK_RGB_DITHER_NONE, 0, 0);
gdk_pixbuf_unref(pixbuf);
}
// If we return FALSE from the function, the button paints itself.
// If we return TRUE, no children are painted.
// So we return TRUE and send the expose along directly to the child.
gtk_container_propagate_expose(GTK_CONTAINER(widget),
gtk_bin_get_child(GTK_BIN(widget)),
e);
return TRUE; // Prevent normal painting.
}
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