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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/common/gtk_util.h"
#include <gtk/gtk.h>
#include "base/linux_util.h"
#include "skia/include/SkBitmap.h"
namespace {
// Callback used in RemoveAllChildren.
void RemoveWidget(GtkWidget* widget, gpointer container) {
gtk_container_remove(GTK_CONTAINER(container), widget);
}
void FreePixels(guchar* pixels, gpointer data) {
free(data);
}
} // namespace
namespace event_utils {
WindowOpenDisposition DispositionFromEventFlags(guint event_flags) {
if ((event_flags & GDK_BUTTON2_MASK) || (event_flags & GDK_CONTROL_MASK)) {
return (event_flags & GDK_SHIFT_MASK) ?
NEW_FOREGROUND_TAB : NEW_BACKGROUND_TAB;
}
if (event_flags & GDK_SHIFT_MASK)
return NEW_WINDOW;
return false /*event.IsAltDown()*/ ? SAVE_TO_DISK : CURRENT_TAB;
}
} // namespace event_utils
namespace gfx {
GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap* bitmap) {
bitmap->lockPixels();
int width = bitmap->width();
int height = bitmap->height();
int stride = bitmap->rowBytes();
const guchar* orig_data = static_cast<guchar*>(bitmap->getPixels());
guchar* data = base::BGRAToRGBA(orig_data, width, height, stride);
// This pixbuf takes ownership of our malloc()ed data and will
// free it for us when it is destroyed.
GdkPixbuf* pixbuf = gdk_pixbuf_new_from_data(
data,
GDK_COLORSPACE_RGB, // The only colorspace gtk supports.
true, // There is an alpha channel.
8,
width, height, stride, &FreePixels, data);
bitmap->unlockPixels();
return pixbuf;
}
GtkWidget* CreateGtkBorderBin(GtkWidget* child, const GdkColor* color,
int top, int bottom, int left, int right) {
// Use a GtkEventBox to get the background painted. However, we can't just
// use a container border, since it won't paint there. Use an alignment
// inside to get the sizes exactly of how we want the border painted.
GtkWidget* ebox = gtk_event_box_new();
gtk_widget_modify_bg(ebox, GTK_STATE_NORMAL, color);
GtkWidget* alignment = gtk_alignment_new(0.0, 0.0, 1.0, 1.0);
gtk_alignment_set_padding(GTK_ALIGNMENT(alignment), top, bottom, left, right);
gtk_container_add(GTK_CONTAINER(alignment), child);
gtk_container_add(GTK_CONTAINER(ebox), alignment);
return ebox;
}
void RemoveAllChildren(GtkWidget* container) {
gtk_container_foreach(GTK_CONTAINER(container), RemoveWidget, container);
}
} // namespace gfx
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