summaryrefslogtreecommitdiff
path: root/tools/designer/src/lib/shared/actionrepository.cpp
blob: a86ec6bf6d3132ddd71c9b2b31717674d7692536 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/

#include "actionrepository_p.h"
#include "qtresourceview_p.h"
#include "iconloader_p.h"
#include "qdesigner_utils_p.h"

#include <QtDesigner/QDesignerFormEditorInterface>
#include <QtDesigner/QDesignerPropertySheetExtension>
#include <QtDesigner/QExtensionManager>

#include <QtGui/QDrag>
#include <QtGui/QContextMenuEvent>
#include <QtGui/QStandardItemModel>
#include <QtGui/QToolButton>
#include <QtGui/QPixmap>
#include <QtGui/QAction>
#include <QtGui/QHeaderView>
#include <QtGui/QToolBar>
#include <QtGui/QMenu>
#include <QtGui/qevent.h>
#include <QtCore/QSet>
#include <QtCore/QDebug>

Q_DECLARE_METATYPE(QAction*)

QT_BEGIN_NAMESPACE

namespace {
    enum { listModeIconSize = 16, iconModeIconSize = 24 };
}

static const char *actionMimeType = "action-repository/actions";
static const char *plainTextMimeType = "text/plain";

static inline QAction *actionOfItem(const QStandardItem* item)
{
    return qvariant_cast<QAction*>(item->data(qdesigner_internal::ActionModel::ActionRole));
}

static QIcon fixActionIcon(const QIcon &icon)
{
    if (icon.isNull())
        return qdesigner_internal::emptyIcon();
    return icon;
}

namespace qdesigner_internal {

// ----------- ActionModel
ActionModel::ActionModel(QWidget *parent ) :
    QStandardItemModel(parent),
    m_core(0)
{
    QStringList headers;
    headers += tr("Name");
    headers += tr("Used");
    headers += tr("Text");
    headers += tr("Shortcut");
    headers += tr("Checkable");
    headers += tr("ToolTip");
    Q_ASSERT(NumColumns == headers.size());
    setHorizontalHeaderLabels(headers);
}

void ActionModel::clearActions()
{
    removeRows(0, rowCount());
}

int ActionModel::findAction(QAction *action) const
{
    const int rows = rowCount();
    for (int i = 0; i < rows; i++)
       if (action == actionOfItem(item(i)))
           return i;
    return -1;
}

void ActionModel::update(int row)
{
    Q_ASSERT(m_core);
    // need to create the row list ... grrr..
    if (row >= rowCount())
       return;

    QStandardItemList list;
    for (int i = 0; i < NumColumns; i++)
       list += item(row, i);

    setItems(m_core, actionOfItem(list.front()), list);
}

void ActionModel::remove(int row)
{
    qDeleteAll(takeRow(row));
}

QModelIndex ActionModel::addAction(QAction *action)
{
    Q_ASSERT(m_core);
    QStandardItemList items;
    const  Qt::ItemFlags flags = Qt::ItemIsSelectable|Qt::ItemIsDropEnabled|Qt::ItemIsDragEnabled|Qt::ItemIsEnabled;

    QVariant itemData;
    qVariantSetValue(itemData, action);

    for (int i = 0; i < NumColumns; i++) {
        QStandardItem *item = new QStandardItem;
        item->setData(itemData, ActionRole);
        item->setFlags(flags);
        items.push_back(item);
    }
    setItems(m_core, action, items);
    appendRow(items);
    return indexFromItem(items.front());
}

// Find the associated menus and toolbars, ignore toolbuttons
QWidgetList ActionModel::associatedWidgets(const QAction *action)
{
    QWidgetList rc = action->associatedWidgets();
    for (QWidgetList::iterator it = rc.begin(); it != rc.end(); )
        if (qobject_cast<const QMenu *>(*it) || qobject_cast<const QToolBar *>(*it)) {
            ++it;
        } else {
            it = rc.erase(it);
        }
    return rc;
}

// shortcut is a fake property, need to retrieve it via property sheet.
PropertySheetKeySequenceValue ActionModel::actionShortCut(QDesignerFormEditorInterface *core, QAction *action)
{
    QDesignerPropertySheetExtension *sheet = qt_extension<QDesignerPropertySheetExtension*>(core->extensionManager(), action);
    if (!sheet)
        return PropertySheetKeySequenceValue();
    return actionShortCut(sheet);
}

PropertySheetKeySequenceValue ActionModel::actionShortCut(const QDesignerPropertySheetExtension *sheet)
{
    const int index = sheet->indexOf(QLatin1String("shortcut"));
    if (index == -1)
        return PropertySheetKeySequenceValue();
    return qvariant_cast<PropertySheetKeySequenceValue>(sheet->property(index));
}

void  ActionModel::setItems(QDesignerFormEditorInterface *core, QAction *action, QStandardItemList &sl)
{

    // Tooltip, mostly for icon view mode
    QString firstTooltip = action->objectName();
    const QString text = action->text();
    if (!text.isEmpty()) {
        firstTooltip += QLatin1Char('\n');
        firstTooltip += text;
    }

    Q_ASSERT(sl.size() == NumColumns);

    QStandardItem *item =  sl[NameColumn];
    item->setText(action->objectName());
    item->setIcon(fixActionIcon(action->icon()));
    item->setToolTip(firstTooltip);
    item->setWhatsThis(firstTooltip);
    // Used
    const QWidgetList associatedDesignerWidgets = associatedWidgets(action);
    const bool used = !associatedDesignerWidgets.empty();
    item = sl[UsedColumn];
    item->setCheckState(used ? Qt::Checked : Qt::Unchecked);
    if (used) {
        QString usedToolTip;
        const QString separator = QLatin1String(", ");
        const int count = associatedDesignerWidgets.size();
        for (int i = 0; i < count; i++) {
            if (i)
                usedToolTip += separator;
            usedToolTip += associatedDesignerWidgets.at(i)->objectName();
        }
        item->setToolTip(usedToolTip);
    } else {
        item->setToolTip(QString());
    }
    // text
    item = sl[TextColumn];
    item->setText(action->text());
    item->setToolTip(action->text());
    // shortcut
    const QString shortcut = actionShortCut(core, action).value().toString();
    item = sl[ShortCutColumn];
    item->setText(shortcut);
    item->setToolTip(shortcut);
    // checkable
    sl[CheckedColumn]->setCheckState(action->isCheckable() ?  Qt::Checked : Qt::Unchecked);
    // ToolTip. This might be multi-line, rich text
    QString toolTip = action->toolTip();
    item = sl[ToolTipColumn];
    item->setToolTip(toolTip);
    item->setText(toolTip.replace(QLatin1Char('\n'), QLatin1Char(' ')));
}

QMimeData *ActionModel::mimeData(const QModelIndexList &indexes ) const
{
    ActionRepositoryMimeData::ActionList actionList;

    QSet<QAction*> actions;
    foreach (const  QModelIndex &index, indexes)
        if (QStandardItem *item = itemFromIndex(index))
            if (QAction *action = actionOfItem(item))
                actions.insert(action);
    return new ActionRepositoryMimeData(actions.toList(), Qt::CopyAction);
}

// Resource images are plain text. The drag needs to be restricted, however.
QStringList ActionModel::mimeTypes() const
{
    return QStringList(QLatin1String(plainTextMimeType));
}

QString ActionModel::actionName(int row) const
{
    return item(row, NameColumn)->text();
}

bool ActionModel::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &)
{
  if (action != Qt::CopyAction)
        return false;

    QStandardItem *droppedItem = item(row, column);
    if (!droppedItem)
        return false;


    QtResourceView::ResourceType type;
    QString path;
    if (!QtResourceView::decodeMimeData(data, &type, &path) || type !=  QtResourceView::ResourceImage)
        return false;

    emit resourceImageDropped(path, actionOfItem(droppedItem));
    return true;
}

QAction *ActionModel::actionAt(const  QModelIndex &index) const
{
    if (!index.isValid())
        return 0;
    QStandardItem *i = itemFromIndex(index);
    if (!i)
        return 0;
    return actionOfItem(i);
}

// helpers

static bool handleImageDragEnterMoveEvent(QDropEvent *event)
{
    QtResourceView::ResourceType type;
    const bool rc = QtResourceView::decodeMimeData(event->mimeData(), &type) && type ==  QtResourceView::ResourceImage;
    if (rc)
        event->acceptProposedAction();
    else
        event->ignore();
    return rc;
}

static void handleImageDropEvent(const QAbstractItemView *iv, QDropEvent *event, ActionModel *am)
{
    const QModelIndex index = iv->indexAt(event->pos());
    if (!index.isValid()) {
        event->ignore();
        return;
    }

    if (!handleImageDragEnterMoveEvent(event))
        return;

    am->dropMimeData(event->mimeData(),  event->proposedAction(), index.row(), 0, iv->rootIndex());
}

// Basically mimic  QAbstractItemView's startDrag routine, except that
// another pixmap is used, we don't want the whole row.

void startActionDrag(QWidget *dragParent, ActionModel *model, const QModelIndexList &indexes, Qt::DropActions supportedActions)
{
    if (indexes.empty())
        return;

    QDrag *drag = new QDrag(dragParent);
    QMimeData *data = model->mimeData(indexes);
    drag->setMimeData(data);
    if (ActionRepositoryMimeData *actionMimeData = qobject_cast<ActionRepositoryMimeData *>(data))
        drag->setPixmap(ActionRepositoryMimeData::actionDragPixmap(actionMimeData->actionList().front()));

    drag->start(supportedActions);
}

// ---------------- ActionTreeView:
ActionTreeView::ActionTreeView(ActionModel *model, QWidget *parent) :
    QTreeView(parent),
    m_model(model)
{
    setDragEnabled(true);
    setAcceptDrops(true);
    setDropIndicatorShown(true);
    setDragDropMode(DragDrop);
    setModel(model);
    setRootIsDecorated(false);
    setTextElideMode(Qt::ElideMiddle);

    setModel(model);
    connect(this, SIGNAL(activated(QModelIndex)), this, SLOT(slotActivated(QModelIndex)));
    connect(header(), SIGNAL(sectionDoubleClicked(int)), this, SLOT(resizeColumnToContents(int)));

    setIconSize(QSize(listModeIconSize, listModeIconSize));

}

QAction *ActionTreeView::currentAction() const
{
    return m_model->actionAt(currentIndex());
}

void ActionTreeView::filter(const QString &text)
{
    const int rowCount = m_model->rowCount();
    const bool empty = text.isEmpty();
    const QModelIndex parent = rootIndex();
    for (int i = 0; i < rowCount; i++)
        setRowHidden(i, parent, !empty && !m_model->actionName(i).contains(text, Qt::CaseInsensitive));
}

void ActionTreeView::dragEnterEvent(QDragEnterEvent *event)
{
    handleImageDragEnterMoveEvent(event);
}

void ActionTreeView::dragMoveEvent(QDragMoveEvent *event)
{
    handleImageDragEnterMoveEvent(event);
}

void ActionTreeView::dropEvent(QDropEvent *event)
{
    handleImageDropEvent(this, event, m_model);
}

void ActionTreeView::focusInEvent(QFocusEvent *event)
{
    QTreeView::focusInEvent(event);
    // Make property editor display current action
    if (QAction *a = currentAction())
       emit currentChanged(a);
}

void ActionTreeView::contextMenuEvent(QContextMenuEvent *event)
{
    emit contextMenuRequested(event, m_model->actionAt(indexAt(event->pos())));
}

void ActionTreeView::currentChanged(const QModelIndex &current, const QModelIndex &/*previous*/)
{
    emit currentChanged(m_model->actionAt(current));
}

void ActionTreeView::slotActivated(const QModelIndex &index)
{
    emit activated(m_model->actionAt(index));
}

void ActionTreeView::startDrag(Qt::DropActions supportedActions)
{
    startActionDrag(this, m_model, selectedIndexes(), supportedActions);
}

// ---------------- ActionListView:
ActionListView::ActionListView(ActionModel *model, QWidget *parent) :
    QListView(parent),
    m_model(model)
{
    setDragEnabled(true);
    setAcceptDrops(true);
    setDropIndicatorShown(true);
    setDragDropMode(DragDrop);
    setModel(model);
    setTextElideMode(Qt::ElideMiddle);
    connect(this, SIGNAL(activated(QModelIndex)), this, SLOT(slotActivated(QModelIndex)));

    // We actually want 'Static' as the user should be able to
    // drag away actions only (not to rearrange icons).
    // We emulate that by not accepting our own
    // drag data. 'Static' causes the list view to disable drag and drop
    // on the viewport.
    setMovement(Snap);
    setViewMode(IconMode);
    setIconSize(QSize(iconModeIconSize, iconModeIconSize));
    setGridSize(QSize(4 * iconModeIconSize, 2 *  iconModeIconSize));
    setSpacing(iconModeIconSize / 3);
}

QAction *ActionListView::currentAction() const
{
    return m_model->actionAt(currentIndex());
}

void ActionListView::filter(const QString &text)
{
    const int rowCount = m_model->rowCount();
    const bool empty = text.isEmpty();
    for (int i = 0; i < rowCount; i++)
        setRowHidden(i, !empty && !m_model->actionName(i).contains(text, Qt::CaseInsensitive));
}

void ActionListView::dragEnterEvent(QDragEnterEvent *event)
{
    handleImageDragEnterMoveEvent(event);
}

void ActionListView::dragMoveEvent(QDragMoveEvent *event)
{
    handleImageDragEnterMoveEvent(event);
}

void ActionListView::dropEvent(QDropEvent *event)
{
    handleImageDropEvent(this, event, m_model);
}

void ActionListView::focusInEvent(QFocusEvent *event)
{
    QListView::focusInEvent(event);
    // Make property editor display current action
    if (QAction *a = currentAction())
       emit currentChanged(a);
}

void ActionListView::contextMenuEvent(QContextMenuEvent *event)
{
    emit contextMenuRequested(event, m_model->actionAt(indexAt(event->pos())));
}

void ActionListView::currentChanged(const QModelIndex &current, const QModelIndex & /*previous*/)
{
    emit currentChanged(m_model->actionAt(current));
}

void ActionListView::slotActivated(const QModelIndex &index)
{
    emit activated(m_model->actionAt(index));
}

void ActionListView::startDrag(Qt::DropActions supportedActions)
{
    startActionDrag(this, m_model, selectedIndexes(), supportedActions);
}

//  ActionView
ActionView::ActionView(QWidget *parent) :
    QStackedWidget(parent),
    m_model(new ActionModel(this)),
    m_actionTreeView(new ActionTreeView(m_model)),
    m_actionListView(new ActionListView(m_model))
{
    addWidget(m_actionListView);
    addWidget(m_actionTreeView);
    // Wire signals
    connect(m_actionTreeView, SIGNAL(contextMenuRequested(QContextMenuEvent*, QAction*)),
            this, SIGNAL(contextMenuRequested(QContextMenuEvent*, QAction*)));
    connect(m_actionListView, SIGNAL(contextMenuRequested(QContextMenuEvent*, QAction*)),
            this, SIGNAL(contextMenuRequested(QContextMenuEvent*, QAction*)));

    // make it possible for vs integration to reimplement edit action dialog
    // [which it shouldn't do actually]
    connect(m_actionListView, SIGNAL(activated(QAction*)), this, SIGNAL(activated(QAction*)));
    connect(m_actionTreeView, SIGNAL(activated(QAction*)), this, SIGNAL(activated(QAction*)));

    connect(m_actionListView, SIGNAL(currentChanged(QAction*)),this, SLOT(slotCurrentChanged(QAction*)));
    connect(m_actionTreeView, SIGNAL(currentChanged(QAction*)),this, SLOT(slotCurrentChanged(QAction*)));

    connect(m_model, SIGNAL(resourceImageDropped(QString,QAction*)),
            this, SIGNAL(resourceImageDropped(QString,QAction*)));

    // sync selection models
    QItemSelectionModel *selectionModel = m_actionTreeView->selectionModel();
    m_actionListView->setSelectionModel(selectionModel);
    connect(selectionModel, SIGNAL(selectionChanged(QItemSelection,QItemSelection)),
            this, SIGNAL(selectionChanged(QItemSelection,QItemSelection)));
}

int ActionView::viewMode() const
{
    return currentWidget() == m_actionListView ? IconView : DetailedView;
}

void ActionView::setViewMode(int lm)
{
    if (viewMode() == lm)
        return;

    switch (lm) {
    case IconView:
        setCurrentWidget(m_actionListView);
        break;
    case DetailedView:
        setCurrentWidget(m_actionTreeView);
        break;
    default:
        break;
    }
}

void ActionView::slotCurrentChanged(QAction *action)
{
    // emit only for currently visible
    if (sender() == currentWidget())
        emit currentChanged(action);
}

void ActionView::filter(const QString &text)
{
    m_actionTreeView->filter(text);
    m_actionListView->filter(text);
}

void ActionView::selectAll()
{
    m_actionTreeView->selectAll();
}

void ActionView::clearSelection()
{
    m_actionTreeView->selectionModel()->clearSelection();
}

void ActionView::setCurrentIndex(const QModelIndex &index)
{
    m_actionTreeView->setCurrentIndex(index);
}

QAction *ActionView::currentAction() const
{
    return m_actionListView->currentAction();
}

void ActionView::setSelectionMode(QAbstractItemView::SelectionMode sm)
{
    m_actionTreeView->setSelectionMode(sm);
    m_actionListView->setSelectionMode(sm);
}

QAbstractItemView::SelectionMode ActionView::selectionMode() const
{
    return m_actionListView->selectionMode();
}

QItemSelection ActionView::selection() const
{
    return  m_actionListView->selectionModel()->selection();
}

ActionView::ActionList ActionView::selectedActions() const
{
    ActionList rc;
    foreach (const QModelIndex &index, selection().indexes())
        if (index.column() == 0)
            rc += actionOfItem(m_model->itemFromIndex(index));
    return rc;
}
// ----------  ActionRepositoryMimeData
ActionRepositoryMimeData::ActionRepositoryMimeData(QAction *a, Qt::DropAction dropAction) :
    m_dropAction(dropAction)
{
    m_actionList += a;
}

ActionRepositoryMimeData::ActionRepositoryMimeData(const ActionList &al, Qt::DropAction dropAction) :
    m_dropAction(dropAction),
    m_actionList(al)
{
}

QStringList ActionRepositoryMimeData::formats() const
{
    return QStringList(QLatin1String(actionMimeType));
}

QPixmap  ActionRepositoryMimeData::actionDragPixmap(const QAction *action)
{

    // Try to find a suitable pixmap. Grab either widget or icon.
    const QIcon icon = action->icon();
    if (!icon.isNull())
        return icon.pixmap(QSize(22, 22));

    foreach (QWidget *w, action->associatedWidgets())
        if (QToolButton *tb = qobject_cast<QToolButton *>(w))
            return QPixmap::grabWidget(tb);

    // Create a QToolButton
    QToolButton *tb = new QToolButton;
    tb->setText(action->text());
    tb->setToolButtonStyle(Qt::ToolButtonTextOnly);
#ifdef Q_WS_WIN // Force alien off to make adjustSize() take the system minimumsize into account.
    tb->createWinId();
#endif
    tb->adjustSize();
    const QPixmap rc = QPixmap::grabWidget(tb);
    tb->deleteLater();
    return rc;
}

void ActionRepositoryMimeData::accept(QDragMoveEvent *event) const
{
    if (event->proposedAction() == m_dropAction) {
        event->acceptProposedAction();
    } else {
        event->setDropAction(m_dropAction);
        event->accept();
    }
}

} // namespace qdesigner_internal

QT_END_NAMESPACE