source: trunk/src/gui/kernel/qdnd_mac.mm@ 467

Last change on this file since 467 was 2, checked in by Dmitry A. Kuminov, 16 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
File size: 25.5 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information ([email protected])
5**
6** This file is part of the QtGui module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
10** Licensees holding valid Qt Commercial licenses may use this file in
11** accordance with the Qt Commercial License Agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
16** Alternatively, this file may be used under the terms of the GNU Lesser
17** General Public License version 2.1 as published by the Free Software
18** Foundation and appearing in the file LICENSE.LGPL included in the
19** packaging of this file. Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
21** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
22**
23** In addition, as a special exception, Nokia gives you certain
24** additional rights. These rights are described in the Nokia Qt LGPL
25** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
26** package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you are unsure which license is appropriate for your use, please
37** contact the sales department at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include "qapplication.h"
43#ifndef QT_NO_DRAGANDDROP
44#include "qbitmap.h"
45#include "qcursor.h"
46#include "qevent.h"
47#include "qpainter.h"
48#include "qurl.h"
49#include "qwidget.h"
50#include "qfile.h"
51#include "qfileinfo.h"
52#include <stdlib.h>
53#include <string.h>
54#ifndef QT_NO_ACCESSIBILITY
55# include "qaccessible.h"
56#endif
57
58#include <private/qapplication_p.h>
59#include <private/qwidget_p.h>
60#include <private/qdnd_p.h>
61#include <private/qt_mac_p.h>
62
63QT_BEGIN_NAMESPACE
64
65QT_USE_NAMESPACE
66
67QMacDndAnswerRecord qt_mac_dnd_answer_rec;
68
69/*****************************************************************************
70 QDnD debug facilities
71 *****************************************************************************/
72//#define DEBUG_DRAG_EVENTS
73//#define DEBUG_DRAG_PROMISES
74
75/*****************************************************************************
76 QDnD globals
77 *****************************************************************************/
78bool qt_mac_in_drag = false;
79#ifndef QT_MAC_USE_COCOA
80static DragReference qt_mac_current_dragRef = 0;
81#endif
82
83/*****************************************************************************
84 Externals
85 *****************************************************************************/
86extern void qt_mac_send_modifiers_changed(quint32, QObject *); //qapplication_mac.cpp
87extern uint qGlobalPostedEventsCount(); //qapplication.cpp
88extern RgnHandle qt_mac_get_rgn(); // qregion_mac.cpp
89extern void qt_mac_dispose_rgn(RgnHandle); // qregion_mac.cpp
90/*****************************************************************************
91 QDnD utility functions
92 *****************************************************************************/
93
94//default pixmap
95static const int default_pm_hotx = -2;
96static const int default_pm_hoty = -16;
97#ifndef QT_MAC_USE_COCOA
98static const char * const default_pm[] = {
99 "13 9 3 1",
100 ". c None",
101 " c #000000",
102 "X c #FFFFFF",
103 "X X X X X X X",
104 " X X X X X X ",
105 "X ......... X",
106 " X.........X ",
107 "X ......... X",
108 " X.........X ",
109 "X ......... X",
110 " X X X X X X ",
111 "X X X X X X X",
112};
113#endif
114
115//action management
116#ifdef DEBUG_DRAG_EVENTS
117# define MAP_MAC_ENUM(x) x, #x
118#else
119# define MAP_MAC_ENUM(x) x
120#endif
121struct mac_enum_mapper
122{
123 int mac_code;
124 int qt_code;
125#ifdef DEBUG_DRAG_EVENTS
126 char *qt_desc;
127#endif
128};
129#ifndef QT_MAC_USE_COCOA
130static mac_enum_mapper dnd_action_symbols[] = {
131 { kDragActionAlias, MAP_MAC_ENUM(Qt::LinkAction) },
132 { kDragActionMove, MAP_MAC_ENUM(Qt::MoveAction) },
133 { kDragActionGeneric, MAP_MAC_ENUM(Qt::CopyAction) },
134 { kDragActionCopy, MAP_MAC_ENUM(Qt::CopyAction) },
135 { 0, MAP_MAC_ENUM(0) }
136};
137static DragActions qt_mac_dnd_map_qt_actions(Qt::DropActions qActions)
138{
139 DragActions ret = kDragActionNothing;
140 for(int i = 0; dnd_action_symbols[i].qt_code; ++i) {
141 if(qActions & dnd_action_symbols[i].qt_code)
142 ret |= dnd_action_symbols[i].mac_code;
143 }
144 return ret;
145}
146static Qt::DropActions qt_mac_dnd_map_mac_actions(DragActions macActions)
147{
148#ifdef DEBUG_DRAG_EVENTS
149 qDebug("Converting DND ActionList: 0x%lx", macActions);
150#endif
151 Qt::DropActions ret = Qt::IgnoreAction;
152 for(int i = 0; dnd_action_symbols[i].qt_code; ++i) {
153#ifdef DEBUG_DRAG_EVENTS
154 qDebug(" %d) [%s] : %s", i, dnd_action_symbols[i].qt_desc,
155 (macActions & dnd_action_symbols[i].mac_code) ? "true" : "false");
156#endif
157 if(macActions & dnd_action_symbols[i].mac_code)
158 ret |= Qt::DropAction(dnd_action_symbols[i].qt_code);
159 }
160 return ret;
161}
162static Qt::DropAction qt_mac_dnd_map_mac_default_action(DragActions macActions)
163{
164 static Qt::DropAction preferred_actions[] = { Qt::CopyAction, Qt::LinkAction, //in order
165 Qt::MoveAction, Qt::IgnoreAction };
166 Qt::DropAction ret = Qt::IgnoreAction;
167 const Qt::DropActions qtActions = qt_mac_dnd_map_mac_actions(macActions);
168 for(int i = 0; preferred_actions[i] != Qt::IgnoreAction; ++i) {
169 if(qtActions & preferred_actions[i]) {
170 ret = preferred_actions[i];
171 break;
172 }
173 }
174#ifdef DEBUG_DRAG_EVENTS
175 for(int i = 0; dnd_action_symbols[i].qt_code; ++i) {
176 if(dnd_action_symbols[i].qt_code == ret) {
177 qDebug("Got default action: %s [0x%lx]", dnd_action_symbols[i].qt_desc, macActions);
178 break;
179 }
180 }
181#endif
182 return ret;
183}
184static void qt_mac_dnd_update_action(DragReference dragRef) {
185 SInt16 modifiers;
186 GetDragModifiers(dragRef, &modifiers, 0, 0);
187 qt_mac_send_modifiers_changed(modifiers, qApp);
188
189 Qt::DropAction qtAction = Qt::IgnoreAction;
190 {
191 DragActions macAllowed = kDragActionNothing;
192 GetDragDropAction(dragRef, &macAllowed);
193 Qt::DropActions qtAllowed = qt_mac_dnd_map_mac_actions(macAllowed);
194 qtAction = QDragManager::self()->defaultAction(qtAllowed, QApplication::keyboardModifiers());
195#if 1
196 if(!(qtAllowed & qtAction))
197 qtAction = qt_mac_dnd_map_mac_default_action(macAllowed);
198#endif
199 }
200 DragActions macAction = qt_mac_dnd_map_qt_actions(qtAction);
201
202 DragActions currentActions;
203 GetDragDropAction(dragRef, &currentActions);
204 if(currentActions != macAction) {
205 SetDragDropAction(dragRef, macAction);
206 QDragManager::self()->emitActionChanged(qtAction);
207 }
208}
209#endif // !QT_MAC_USE_COCOA
210
211/*****************************************************************************
212 DnD functions
213 *****************************************************************************/
214bool QDropData::hasFormat_sys(const QString &mime) const
215{
216#ifndef QT_MAC_USE_COCOA
217 OSPasteboardRef board;
218 if(GetDragPasteboard(qt_mac_current_dragRef, &board) != noErr) {
219 qDebug("DnD: Cannot get PasteBoard!");
220 return false;
221 }
222 return QMacPasteboard(board, QMacPasteboardMime::MIME_DND).hasFormat(mime);
223#else
224 Q_UNUSED(mime);
225 return false;
226#endif // !QT_MAC_USE_COCOA
227}
228
229QVariant QDropData::retrieveData_sys(const QString &mime, QVariant::Type type) const
230{
231#ifndef QT_MAC_USE_COCOA
232 OSPasteboardRef board;
233 if(GetDragPasteboard(qt_mac_current_dragRef, &board) != noErr) {