1/*
2 * Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com
3 * Copyright (C) 2007 Christian Dywan <christian@twotoasts.de>
4 * Copyright (C) 2010-2012 Igalia S.L.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
20 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
24 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include "config.h"
30#include "CursorGtk.h"
31#include "GtkVersioning.h"
32
33#include "Image.h"
34#include "IntPoint.h"
35#include "RefPtrCairo.h"
36#include <gdk/gdk.h>
37#include <gtk/gtk.h>
38#include <wtf/Assertions.h>
39
40namespace WebCore {
41
42static GRefPtr<GdkCursor> createNamedCursor(CustomCursorType cursorType)
43{
44    CustomCursor cursor = CustomCursors[cursorType];
45    GRefPtr<GdkCursor> c = adoptGRef(gdk_cursor_new_from_name(gdk_display_get_default(), cursor.name));
46    if (c)
47        return c;
48
49    RefPtr<cairo_surface_t> source = adoptRef(cairo_image_surface_create_for_data(const_cast<unsigned char*>(cursor.bits), CAIRO_FORMAT_A1, 32, 32, 4));
50    RefPtr<cairo_surface_t> mask = adoptRef(cairo_image_surface_create_for_data(const_cast<unsigned char*>(cursor.mask_bits), CAIRO_FORMAT_A1, 32, 32, 4));
51
52    RefPtr<cairo_surface_t> surface = adoptRef(cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 32, 32));
53    RefPtr<cairo_t> cr = adoptRef(cairo_create(surface.get()));
54
55    cairo_set_source_rgb(cr.get(), 1, 1, 1);
56    cairo_mask_surface(cr.get(), mask.get(), 0, 0);
57
58    cairo_set_source_surface(cr.get(), source.get(), 0, 0);
59    cairo_paint(cr.get());
60
61#if GTK_CHECK_VERSION(3, 9, 12)
62    return adoptGRef(gdk_cursor_new_from_surface(gdk_display_get_default(), surface.get(), cursor.hot_x, cursor.hot_y));
63#else
64    GRefPtr<GdkPixbuf> pixbuf = adoptGRef(gdk_pixbuf_get_from_surface(surface.get(), 0, 0, 32, 32));
65    return adoptGRef(gdk_cursor_new_from_pixbuf(gdk_display_get_default(), pixbuf.get(), cursor.hot_x, cursor.hot_y));
66#endif
67}
68
69static GRefPtr<GdkCursor> createCustomCursor(Image* image, const IntPoint& hotSpot)
70{
71    GRefPtr<GdkPixbuf> pixbuf = adoptGRef(image->getGdkPixbuf());
72
73    if (!image->nativeImageForCurrentFrame() || !pixbuf)
74        return 0;
75
76    IntPoint effectiveHotSpot = determineHotSpot(image, hotSpot);
77    return adoptGRef(gdk_cursor_new_from_pixbuf(gdk_display_get_default(), pixbuf.get(), effectiveHotSpot.x(), effectiveHotSpot.y()));
78}
79
80void Cursor::ensurePlatformCursor() const
81{
82    if (m_platformCursor || m_type == Cursor::Pointer)
83        return;
84
85    switch (m_type) {
86    case Cursor::Pointer:
87        // A null GdkCursor is the default cursor for the window.
88        m_platformCursor = 0;
89        break;
90    case Cursor::Cross:
91        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_CROSS));
92        break;
93    case Cursor::Hand:
94        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_HAND2));
95        break;
96    case Cursor::IBeam:
97        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_XTERM));
98        break;
99    case Cursor::Wait:
100        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_WATCH));
101        break;
102    case Cursor::Help:
103        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_QUESTION_ARROW));
104        break;
105    case Cursor::Move:
106    case Cursor::MiddlePanning:
107        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_FLEUR));
108        break;
109    case Cursor::EastResize:
110    case Cursor::EastPanning:
111        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_RIGHT_SIDE));
112        break;
113    case Cursor::NorthResize:
114    case Cursor::NorthPanning:
115        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_TOP_SIDE));
116        break;
117    case Cursor::NorthEastResize:
118    case Cursor::NorthEastPanning:
119        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_TOP_RIGHT_CORNER));
120        break;
121    case Cursor::NorthWestResize:
122    case Cursor::NorthWestPanning:
123        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_TOP_LEFT_CORNER));
124        break;
125    case Cursor::SouthResize:
126    case Cursor::SouthPanning:
127        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_BOTTOM_SIDE));
128        break;
129    case Cursor::SouthEastResize:
130    case Cursor::SouthEastPanning:
131        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_BOTTOM_RIGHT_CORNER));
132        break;
133    case Cursor::SouthWestResize:
134    case Cursor::SouthWestPanning:
135        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_BOTTOM_LEFT_CORNER));
136        break;
137    case Cursor::WestResize:
138        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_LEFT_SIDE));
139        break;
140    case Cursor::NorthSouthResize:
141        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_TOP_TEE));
142        break;
143    case Cursor::EastWestResize:
144    case Cursor::WestPanning:
145        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_LEFT_SIDE));
146        break;
147    case Cursor::NorthEastSouthWestResize:
148    case Cursor::NorthWestSouthEastResize:
149        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_SIZING));
150        break;
151    case Cursor::ColumnResize:
152        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_SB_H_DOUBLE_ARROW));
153        break;
154    case Cursor::RowResize:
155        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_SB_V_DOUBLE_ARROW));
156        break;
157    case Cursor::VerticalText:
158        m_platformCursor = createNamedCursor(CustomCursorVerticalText);
159        break;
160    case Cursor::Cell:
161        m_platformCursor = adoptGRef(gdk_cursor_new(GDK_PLUS));
162        break;
163    case Cursor::ContextMenu:
164        m_platformCursor = createNamedCursor(CustomCursorContextMenu);
165        break;
166    case Cursor::Alias:
167        m_platformCursor = createNamedCursor(CustomCursorAlias);
168        break;
169    case Cursor::Progress:
170        m_platformCursor = createNamedCursor(CustomCursorProgress);
171        break;
172    case Cursor::NoDrop:
173    case Cursor::NotAllowed:
174        m_platformCursor = createNamedCursor(CustomCursorNoDrop);
175        break;
176    case Cursor::Copy:
177        m_platformCursor = createNamedCursor(CustomCursorCopy);
178        break;
179    case Cursor::None:
180        m_platformCursor = createNamedCursor(CustomCursorNone);
181        break;
182    case Cursor::ZoomIn:
183        m_platformCursor = createNamedCursor(CustomCursorZoomIn);
184        break;
185    case Cursor::ZoomOut:
186        m_platformCursor = createNamedCursor(CustomCursorZoomOut);
187        break;
188    case Cursor::Grab:
189        m_platformCursor = createNamedCursor(CustomCursorGrab);
190        break;
191    case Cursor::Grabbing:
192        m_platformCursor = createNamedCursor(CustomCursorGrabbing);
193        break;
194    case Cursor::Custom:
195        m_platformCursor = createCustomCursor(m_image.get(), m_hotSpot);
196        break;
197    }
198}
199
200Cursor::Cursor(const Cursor& other)
201    : m_type(other.m_type)
202    , m_image(other.m_image)
203    , m_hotSpot(other.m_hotSpot)
204    , m_platformCursor(other.m_platformCursor)
205{
206}
207
208Cursor& Cursor::operator=(const Cursor& other)
209{
210    m_type = other.m_type;
211    m_image = other.m_image;
212    m_hotSpot = other.m_hotSpot;
213    m_platformCursor = other.m_platformCursor;
214    return *this;
215}
216
217Cursor::~Cursor()
218{
219}
220
221}
222