summaryrefslogtreecommitdiffstats
path: root/kregexpeditor/editorwindow.cpp
blob: fedd0a9af0e810baae537c53494a23824044158c (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
/*
 *  Copyright (c) 2002-2003 Jesper K. Pedersen <blackie@kde.org>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License version 2 as published by the Free Software Foundation.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public License
 *  along with this library; see the file COPYING.LIB.  If not, write to
 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301, USA.
 **/

#ifdef QT_ONLY
  #include "compat.h"
  #include "images.h"
#else
  #include <klocale.h>
  #include <kmessagebox.h>
//   #include <kfiledialog.h>
  #include <kstandarddirs.h>
  #include <kiconloader.h>
  #include "editorwindow.moc"
  #include <klineeditdlg.h>
#endif

#include "editorwindow.h"
#include "concwidget.h"
#include <tqlayout.h>
#include <tqpainter.h>
#include <tqaccel.h>
#include <tqcursor.h>
#include <tqclipboard.h>
#include <tqpopupmenu.h>
#include "regexp.h"
#include "userdefinedregexps.h"
#include <tqfileinfo.h>

RegExpEditorWindow::RegExpEditorWindow( TQWidget *parent, const char *name)
    : TQWidget(parent, name, Qt::WPaintUnclipped)
{
    _top = new ConcWidget(this, this);
    _layout = new TQHBoxLayout( this);
    _layout->addWidget(_top);
    _top->setToplevel();
    _undrawSelection = false;
    _menu = 0;
    _insertInAction = false;
    _pasteInAction = false;
    _pasteData = 0;

    TQAccel* accel = new TQAccel( this );
    accel->connectItem( accel->insertItem( CTRL+Key_C ), this, TQT_SLOT( slotCopy() ) );
    accel->connectItem( accel->insertItem( CTRL+Key_X ), this, TQT_SLOT( slotCut() ) );
    accel->connectItem( accel->insertItem( Key_Delete ), this, TQT_SLOT( slotCut() ) );
    accel->connectItem( accel->insertItem( Key_BackSpace ), this, TQT_SLOT( slotCut() ) );
    accel->connectItem( accel->insertItem( CTRL+Key_V ), this, TQT_SLOT( slotStartPasteAction() ) );
    accel->connectItem( accel->insertItem( Key_Escape ), this, TQT_SLOT( slotEndActions() ) );
    accel->connectItem( accel->insertItem( CTRL+Key_S ), this, TQT_SLOT( slotSave() ) );

    connect( this, TQT_SIGNAL( change() ), this, TQT_SLOT( emitVerifyRegExp() ) );
}

RegExp* RegExpEditorWindow::regExp() const
{
	return _top->regExp();
}

void  RegExpEditorWindow::mousePressEvent ( TQMouseEvent* event )
{
    setFocus();
    updateContent( 0 );

    _start = event->pos();
    _lastPoint = TQPoint(0,0);

    if ( pointSelected( event->globalPos() ) ) {
        _isDndOperation = true;
    }
    else {
        _isDndOperation = false;
        _selection = TQRect();
        _top->updateSelection( false );

        TQWidget::mousePressEvent( event );
    }
    grabMouse();
}

bool RegExpEditorWindow::pointSelected( TQPoint p ) const
{
    TQRect rect = _top->selectionRect();
    return rect.contains(p);
}

void RegExpEditorWindow::mouseMoveEvent ( TQMouseEvent* event )
{
    if ( _isDndOperation ) {
        if ( ( _start - event->pos() ).manhattanLength() > TQApplication::startDragDistance() ) {
            RegExp* regexp = _top->selection();
            if ( !regexp )
                return;
            TQDragObject *d = new RegExpWidgetDrag( regexp, this );
            delete regexp;

            bool del = d->drag();
            if ( del )
                slotDeleteSelection();
            else {
                clearSelection( true );
            }
            releaseMouse();
            emit change();
            emit canSave( _top->hasAnyChildren() );
        }
    }
    else {
        TQPainter p( this );
        p.setRasterOp( Qt::NotROP );
        p.setPen( Qt::DotLine );

        // remove last selection rectangle
        if ( ! _lastPoint.isNull() && _undrawSelection ) {
            p.drawRect(TQRect(_start, _lastPoint));
        }

        // Note this line must come after the old rect has been removed
        // and before the new one is draw otherwise the update event which this
        // line invokes, will remove a line, which later will be drawn instead of
        // removed during NotROP.
        _top->updateSelection( false );
        emit scrolling( event->pos() );

        p.drawRect(TQRect(_start, event->pos()));
        _undrawSelection = true;
        _lastPoint = event->pos();

        _selection = TQRect(mapToGlobal(_start), mapToGlobal(_lastPoint)).normalize();
    }
}

void RegExpEditorWindow::mouseReleaseEvent( TQMouseEvent *event)
{
    releaseMouse();
    TQWidget::mouseReleaseEvent( event);

    // remove last selection rectangle
    TQPainter p( this );
    p.setRasterOp( Qt::NotROP );
    p.setPen( Qt::DotLine );
    if ( ! _lastPoint.isNull() ) {
        p.drawRect(TQRect(_start, _lastPoint));
    }
    _top->validateSelection();
    _top->updateAll();
    emit anythingSelected( hasSelection() );
    if ( hasSelection() ) {
        emit verifyRegExp();
    }
}

bool RegExpEditorWindow::selectionOverlap( TQPoint pos, TQSize size ) const
{
    TQRect child(pos, size);

    return (_selection.intersects(child) && ! child.contains(_selection));
}

bool RegExpEditorWindow::hasSelection() const
{
    return _top->hasSelection();
}

void RegExpEditorWindow::clearSelection( bool update )
{
    _top->clearSelection();
    if ( update )
        _top->updateAll();
    emit anythingSelected(false);
}

void RegExpEditorWindow::slotInsertRegExp( RegExpType type )
{
    _insertInAction = true;
    _insertTp = type;

    updateCursorUnderPoint();
    setFocus();
}

void RegExpEditorWindow::slotInsertRegExp( RegExp* regexp )
{
    if ( _pasteData )
        delete _pasteData;

    _pasteData = regexp->clone();
    _pasteInAction = true;
    updateCursorUnderPoint();
    setFocus();
}

void RegExpEditorWindow::slotDoSelect()
{
    _pasteInAction = false;
    _insertInAction = false;

    // I need to update the cursor recursively, as a repaint may not have been issued yet
    // when this method is invoked. This means that when the repaint comes, the cursor may
    // move to an other widget.
    _top->updateCursorRecursively();
}

void RegExpEditorWindow::slotDeleteSelection()
{
    if ( ! hasSelection() ) {
        KMessageBox::information(this, i18n( "There is no selection."), i18n("Missing Selection") );
    }
    else {
        _top->deleteSelection();
    }
    updateContent( 0 );
}

void RegExpEditorWindow::updateContent( TQWidget* focusChild)
{
    TQPoint p(0,0);
    if ( focusChild )
        p = focusChild->mapTo( this, TQPoint(0,0) );

    _top->update();
    emit contentChanged( p );
}

TQSize RegExpEditorWindow::sizeHint() const
{
    return _top->sizeHint();
}

void RegExpEditorWindow::paintEvent( TQPaintEvent* event )
{
    TQWidget::paintEvent( event );
    _undrawSelection = false;
}

void RegExpEditorWindow::slotCut()
{
    cut( TQCursor::pos() );
    emit change();
    emit canSave( _top->hasAnyChildren() );
}

void RegExpEditorWindow::cut( TQPoint pos )
{
    cutCopyAux( pos );
    slotDeleteSelection();
}

void RegExpEditorWindow::slotCopy()
{
    copy( TQCursor::pos() );
}

void RegExpEditorWindow::copy( TQPoint pos )
{
    cutCopyAux( pos );
    clearSelection( true );
}


void RegExpEditorWindow::cutCopyAux( TQPoint pos )
{
    if ( !hasSelection() ) {
        RegExpWidget* widget = _top->widgetUnderPoint( pos, true );
        if ( !widget ) {
            KMessageBox::information(this, i18n("There is no widget under cursor."), i18n("Invalid Operation") );
            return;
        }
        else {
            widget->updateSelection( true ); // HACK!
        }
    }

    RegExp* regexp = _top->selection();
    RegExpWidgetDrag *clipboardData = new RegExpWidgetDrag( regexp, this );
    delete regexp;

    QClipboard* clipboard = qApp->clipboard();
    clipboard->setData( clipboardData );
    emit anythingOnClipboard( true );
    emit canSave( _top->hasAnyChildren() );
}


void RegExpEditorWindow::slotStartPasteAction()
{
    TQByteArray data = qApp->clipboard()->data()->encodedData( "KRegExpEditor/widgetdrag" );
    TQTextStream stream( data, IO_ReadOnly );
    TQString str = stream.read();

    RegExp* regexp = WidgetFactory::createRegExp( str );
    if ( regexp )
        slotInsertRegExp( regexp );
}

void RegExpEditorWindow::slotEndActions() {
    emit doneEditing();
    emit change();
    emit canSave( _top->hasAnyChildren() );
}

void RegExpEditorWindow::showRMBMenu( bool enableCutCopy )
{
    enum CHOICES { CUT, COPY, PASTE, SAVE, EDIT };

    if ( !_menu ) {
        _menu = new TQPopupMenu( 0 );
        _menu->insertItem(getIcon(TQString::fromLocal8Bit("editcut")),
                          i18n("C&ut"), CUT);
        _menu->insertItem(getIcon(TQString::fromLocal8Bit("editcopy")),
                          i18n("&Copy"), COPY);
        _menu->insertItem(getIcon(TQString::fromLocal8Bit("editpaste")),
                          i18n("&Paste"), PASTE);
        _menu->insertSeparator();
        _menu->insertItem(getIcon(TQString::fromLocal8Bit("edit")),
                          i18n("&Edit"), EDIT);
        _menu->insertItem(getIcon(TQString::fromLocal8Bit("filesave")),
                          i18n("&Save Regular Expression..."), SAVE);
    }

    _menu->setItemEnabled( CUT, enableCutCopy );
    _menu->setItemEnabled( COPY, enableCutCopy );

    if ( ! qApp->clipboard()->data()->provides( "KRegExpEditor/widgetdrag" ) )
        _menu->setItemEnabled( PASTE, false );
    else
        _menu->setItemEnabled( PASTE, true );

    _menu->setItemEnabled( SAVE, _top->hasAnyChildren() );

    RegExpWidget* editWidget = _top->findWidgetToEdit( TQCursor::pos() );

    _menu->setItemEnabled( EDIT, editWidget  );

    TQPoint pos = TQCursor::pos();
    int choice = _menu->exec( pos );
    switch ( choice ) {
    case COPY: copy( pos ); break;
    case CUT: cut( pos ); break;
    case PASTE: slotStartPasteAction(); break;
    case SAVE: slotSave(); break;
    case EDIT: editWidget->edit(); break;
    }
    emit change();
    emit canSave( _top->hasAnyChildren() );
}

void RegExpEditorWindow::applyRegExpToSelection( RegExpType tp )
{
    _top->applyRegExpToSelection( tp );
}

void RegExpEditorWindow::slotSave()
{
    TQString dir = WidgetWinItem::path();
    TQString txt;

#ifdef QT_ONLY
    txt = QInputDialog::getText( tr("Name for regexp"), tr("Enter name:") );
    if ( txt.isNull() )
        return;
#else
    KLineEditDlg dlg(i18n("Enter name:"), TQString::null, this);
    dlg.setCaption(i18n("Name for Regular Expression"));
    if (!dlg.exec()) return;
    txt = dlg.text();
#endif

    TQString fileName = dir + TQString::fromLocal8Bit("/") + txt + TQString::fromLocal8Bit(".regexp");
    TQFileInfo finfo( fileName );
    if ( finfo.exists() ) {
        int answer = KMessageBox::warningContinueCancel( this, i18n("<p>Overwrite named regular expression <b>%1</b></p>").arg(txt), TQString::null, i18n("Overwrite"));
        if ( answer != KMessageBox::Continue )
            return;
    }

    TQFile file( fileName );
    if ( ! file.open(IO_WriteOnly) ) {
        KMessageBox::sorry( this, i18n("Could not open file for writing: %1").arg(fileName) );
        return;
    }

    // Convert to XML.
    RegExp* regexp = _top->regExp();
    TQString xml = regexp->toXmlString();
    delete regexp;

    TQTextStream stream(&file);
    stream << xml;

    file.close();
    emit savedRegexp();
}


void RegExpEditorWindow::slotSetRegExp( RegExp* regexp )
{
    // I have no clue why the following line is necesarry, but if it is not here
    // then the editor area is messed up when calling slotSetRegExp before starting the eventloop.
    qApp->processEvents();

    delete _top;
    RegExpWidget* widget = WidgetFactory::createWidget( regexp, this, this );
    if ( ! (_top = dynamic_cast<ConcWidget*>( widget ) ) ) {
        // It was not a ConcWidget
        _top = new ConcWidget( this, widget, this );
    }
    _top->setToplevel();

    _top->show();
    _layout->addWidget( _top );
    clearSelection( true ); // HACK?
    emit canSave( _top->hasAnyChildren() );
}

void RegExpEditorWindow::updateCursorUnderPoint()
{
    RegExpWidget* widget = _top->widgetUnderPoint( TQCursor::pos(), false );
    if ( widget )
        widget->updateCursorShape();
}

void RegExpEditorWindow::emitVerifyRegExp()
{
    emit verifyRegExp();
}


TQIconSet RegExpEditorWindow::getIcon( const TQString& name )
{
#ifdef QT_ONLY
    TQPixmap pix;
    pix.convertFromImage( qembed_findImage( name ) );
    return pix;
#else
        return SmallIconSet( name );
#endif
}