1// Copyright (c) 2011 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_UI_GTK_ROUNDED_WINDOW_H_
6#define CHROME_BROWSER_UI_GTK_ROUNDED_WINDOW_H_
7#pragma once
8
9#include <gtk/gtk.h>
10
11namespace gtk_util {
12
13// Symbolic names for arguments to |rounded_edges| in ActAsRoundedWindow().
14enum RoundedBorders {
15  ROUNDED_NONE = 0,
16  ROUNDED_BOTTOM_LEFT = 1 << 0,
17  ROUNDED_TOP_LEFT = 1 << 1,
18  ROUNDED_TOP_RIGHT = 1 << 2,
19  ROUNDED_TOP = (1 << 1) | (1 << 2),
20  ROUNDED_BOTTOM_RIGHT = 1 << 3,
21  ROUNDED_ALL = 0xF
22};
23
24// Symbolic names for arguments to |drawn_borders| in ActAsRoundedWindow().
25enum BorderEdge {
26  BORDER_NONE = 0,
27  BORDER_LEFT = 1 << 0,
28  BORDER_TOP = 1 << 1,
29  BORDER_RIGHT = 1 << 2,
30  BORDER_BOTTOM = 1 << 3,
31  BORDER_ALL = 0xF
32};
33
34// Sets up the passed in widget that has its own GdkWindow with an expose
35// handler that forces the window shape into roundness. Caller should not set
36// an "expose-event" handler on |widget|; if caller needs to do custom
37// rendering, use SetRoundedWindowExposeFunction() instead. |rounded_edges|
38// control which corners are rounded. |drawn_borders| border control which
39// sides have a visible border drawn in |color|.
40void ActAsRoundedWindow(
41    GtkWidget* widget, const GdkColor& color, int corner_size,
42    int rounded_edges, int drawn_borders);
43
44// Undoes most of the actions of ActAsRoundedWindow().
45void StopActingAsRoundedWindow(GtkWidget* widget);
46
47// Returns true if the window is rounded.
48bool IsActingAsRoundedWindow(GtkWidget* widget);
49
50// Sets edge and border properties on a widget that has already been configured
51// with ActAsRoundedWindow().
52void SetRoundedWindowEdgesAndBorders(GtkWidget* widget,
53                                     int corner_size,
54                                     int rounded_edges,
55                                     int drawn_borders);
56
57// Sets the color of the border on a widget that has already been configured
58// with ActAsRoundedWindow().
59void SetRoundedWindowBorderColor(GtkWidget* widget, GdkColor color);
60
61
62}  // namespace gtk_util
63
64#endif  // CHROME_BROWSER_UI_GTK_ROUNDED_WINDOW_H_
65