source: trunk/examples/dirview/dirview.cpp@ 176

Last change on this file since 176 was 160, checked in by dmik, 19 years ago

Imported table and iconview modules and a bunch of dependent examples from the official release 3.3.1 from Trolltech.
  • Property svn:keywords set to Id
File size: 12.1 KB
Line 
1/****************************************************************************
2** $Id: dirview.cpp 160 2006-12-11 20:15:57Z dmik $
3**
4** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
5**
6** This file is part of an example program for Qt. This example
7** program may be used, distributed and modified without limitation.
8**
9*****************************************************************************/
10
11#include "dirview.h"
12
13#include <qdir.h>
14#include <qfile.h>
15#include <qfileinfo.h>
16#include <qpixmap.h>
17#include <qevent.h>
18#include <qpoint.h>
19#include <qmessagebox.h>
20#include <qdragobject.h>
21#include <qmime.h>
22#include <qstrlist.h>
23#include <qstringlist.h>
24#include <qapplication.h>
25#include <qheader.h>
26
27static const char* folder_closed_xpm[]={
28 "16 16 9 1",
29 "g c #808080",
30 "b c #c0c000",
31 "e c #c0c0c0",
32 "# c #000000",
33 "c c #ffff00",
34 ". c None",
35 "a c #585858",
36 "f c #a0a0a4",
37 "d c #ffffff",
38 "..###...........",
39 ".#abc##.........",
40 ".#daabc#####....",
41 ".#ddeaabbccc#...",
42 ".#dedeeabbbba...",
43 ".#edeeeeaaaab#..",
44 ".#deeeeeeefe#ba.",
45 ".#eeeeeeefef#ba.",
46 ".#eeeeeefeff#ba.",
47 ".#eeeeefefff#ba.",
48 ".##geefeffff#ba.",
49 "...##gefffff#ba.",
50 ".....##fffff#ba.",
51 ".......##fff#b##",
52 ".........##f#b##",
53 "...........####."};
54
55static const char* folder_open_xpm[]={
56 "16 16 11 1",
57 "# c #000000",
58 "g c #c0c0c0",
59 "e c #303030",
60 "a c #ffa858",
61 "b c #808080",
62 "d c #a0a0a4",
63 "f c #585858",
64 "c c #ffdca8",
65 "h c #dcdcdc",
66 "i c #ffffff",
67 ". c None",
68 "....###.........",
69 "....#ab##.......",
70 "....#acab####...",
71 "###.#acccccca#..",
72 "#ddefaaaccccca#.",
73 "#bdddbaaaacccab#",
74 ".eddddbbaaaacab#",
75 ".#bddggdbbaaaab#",
76 "..edgdggggbbaab#",
77 "..#bgggghghdaab#",
78 "...ebhggghicfab#",
79 "....#edhhiiidab#",
80 "......#egiiicfb#",
81 "........#egiibb#",
82 "..........#egib#",
83 "............#ee#"};
84
85static const char * folder_locked[]={
86 "16 16 10 1",
87 "h c #808080",
88 "b c #ffa858",
89 "f c #c0c0c0",
90 "e c #c05800",
91 "# c #000000",
92 "c c #ffdca8",
93 ". c None",
94 "a c #585858",
95 "g c #a0a0a4",
96 "d c #ffffff",
97 "..#a#...........",
98 ".#abc####.......",
99 ".#daa#eee#......",
100 ".#ddf#e##b#.....",
101 ".#dfd#e#bcb##...",
102 ".#fdccc#daaab#..",
103 ".#dfbbbccgfg#ba.",
104 ".#ffb#ebbfgg#ba.",
105 ".#ffbbe#bggg#ba.",
106 ".#fffbbebggg#ba.",
107 ".##hf#ebbggg#ba.",
108 "...###e#gggg#ba.",
109 ".....#e#gggg#ba.",
110 "......###ggg#b##",
111 ".........##g#b##",
112 "...........####."};
113
114static const char * pix_file []={
115 "16 16 7 1",
116 "# c #000000",
117 "b c #ffffff",
118 "e c #000000",
119 "d c #404000",
120 "c c #c0c000",
121 "a c #ffffc0",
122 ". c None",
123 "................",
124 ".........#......",
125 "......#.#a##....",
126 ".....#b#bbba##..",
127 "....#b#bbbabbb#.",
128 "...#b#bba##bb#..",
129 "..#b#abb#bb##...",
130 ".#a#aab#bbbab##.",
131 "#a#aaa#bcbbbbbb#",
132 "#ccdc#bcbbcbbb#.",
133 ".##c#bcbbcabb#..",
134 "...#acbacbbbe...",
135 "..#aaaacaba#....",
136 "...##aaaaa#.....",
137 ".....##aa#......",
138 ".......##......."};
139
140QPixmap *folderLocked = 0;
141QPixmap *folderClosed = 0;
142QPixmap *folderOpen = 0;
143QPixmap *fileNormal = 0;
144
145/*****************************************************************************
146 *
147 * Class Directory
148 *
149 *****************************************************************************/
150
151Directory::Directory( Directory * parent, const QString& filename )
152 : QListViewItem( parent ), f(filename),
153 showDirsOnly( parent->showDirsOnly ),
154 pix( 0 )
155{
156 p = parent;
157 readable = QDir( fullName() ).isReadable();
158
159 if ( !readable )
160 setPixmap( folderLocked );
161 else
162 setPixmap( folderClosed );
163}
164
165
166Directory::Directory( QListView * parent, const QString& filename )
167 : QListViewItem( parent ), f(filename),
168 showDirsOnly( ( (DirectoryView*)parent )->showDirsOnly() ),
169 pix( 0 )
170{
171 p = 0;
172 readable = QDir( fullName() ).isReadable();
173}
174
175
176void Directory::setPixmap( QPixmap *px )
177{
178 pix = px;
179 setup();
180 widthChanged( 0 );
181 invalidateHeight();
182 repaint();
183}
184
185
186const QPixmap *Directory::pixmap( int i ) const
187{
188 if ( i )
189 return 0;
190 return pix;
191}
192
193void Directory::setOpen( bool o )
194{
195 if ( o )
196 setPixmap( folderOpen );
197 else
198 setPixmap( folderClosed );
199
200 if ( o && !childCount() ) {
201 QString s( fullName() );
202 QDir thisDir( s );
203 if ( !thisDir.isReadable() ) {
204 readable = FALSE;
205 setExpandable( FALSE );
206 return;
207 }
208
209 listView()->setUpdatesEnabled( FALSE );
210 const QFileInfoList * files = thisDir.entryInfoList();
211 if ( files ) {
212 QFileInfoListIterator it( *files );
213 QFileInfo * fi;
214 while( (fi=it.current()) != 0 ) {
215 ++it;
216 if ( fi->fileName() == "." || fi->fileName() == ".." )
217 ; // nothing
218 else if ( fi->isSymLink() && !showDirsOnly ) {
219 FileItem *item = new FileItem( this, fi->fileName(),
220 "Symbolic Link" );
221 item->setPixmap( fileNormal );
222 }
223 else if ( fi->isDir() )
224 (void)new Directory( this, fi->fileName() );
225 else if ( !showDirsOnly ) {
226 FileItem *item
227 = new FileItem( this, fi->fileName(),
228 fi->isFile()?"File":"Special" );
229 item->setPixmap( fileNormal );
230 }
231 }
232 }
233 listView()->setUpdatesEnabled( TRUE );
234 }
235 QListViewItem::setOpen( o );
236}
237
238
239void Directory::setup()
240{
241 setExpandable( TRUE );
242 QListViewItem::setup();
243}
244
245
246QString Directory::fullName()
247{
248 QString s;
249 if ( p ) {
250 s = p->fullName();
251 s.append( f.name() );
252 s.append( "/" );
253 } else {
254 s = f.name();
255 }
256 return s;
257}
258
259
260QString Directory::text( int column ) const
261{
262 if ( column == 0 )
263 return f.name();
264 else if ( readable )
265 return "Directory";
266 else
267 return "Unreadable Directory";
268}
269
270/*****************************************************************************
271 *
272 * Class DirectoryView
273 *
274 *****************************************************************************/
275
276DirectoryView::DirectoryView( QWidget *parent, const char *name, bool sdo )
277 : QListView( parent, name ), dirsOnly( sdo ), oldCurrent( 0 ),
278 dropItem( 0 ), mousePressed( FALSE )
279{
280 autoopen_timer = new QTimer( this );
281 if ( !folderLocked ) {
282 folderLocked = new QPixmap( folder_locked );
283 folderClosed = new QPixmap( folder_closed_xpm );
284 folderOpen = new QPixmap( folder_open_xpm );
285 fileNormal = new QPixmap( pix_file );
286 }
287
288 connect( this, SIGNAL( doubleClicked( QListViewItem * ) ),
289 this, SLOT( slotFolderSelected( QListViewItem * ) ) );
290 connect( this, SIGNAL( returnPressed( QListViewItem * ) ),
291 this, SLOT( slotFolderSelected( QListViewItem * ) ) );
292
293 setAcceptDrops( TRUE );
294 viewport()->setAcceptDrops( TRUE );
295
296 connect( autoopen_timer, SIGNAL( timeout() ),
297 this, SLOT( openFolder() ) );
298}
299
300void DirectoryView::slotFolderSelected( QListViewItem *i )
301{
302 if ( !i || !showDirsOnly() )
303 return;
304
305 Directory *dir = (Directory*)i;
306 emit folderSelected( dir->fullName() );
307}
308
309void DirectoryView::openFolder()
310{
311 autoopen_timer->stop();
312 if ( dropItem && !dropItem->isOpen() ) {
313 dropItem->setOpen( TRUE );
314 dropItem->repaint();
315 }
316}
317
318static const int autoopenTime = 750;
319
320
321void DirectoryView::contentsDragEnterEvent( QDragEnterEvent *e )
322{
323 if ( !QUriDrag::canDecode(e) ) {
324 e->ignore();
325 return;
326 }
327
328 oldCurrent = currentItem();
329
330 QListViewItem *i = itemAt( contentsToViewport(e->pos()) );
331 if ( i ) {
332 dropItem = i;
333 autoopen_timer->start( autoopenTime );
334 }
335}
336
337
338void DirectoryView::contentsDragMoveEvent( QDragMoveEvent *e )
339{
340 if ( !QUriDrag::canDecode(e) ) {
341 e->ignore();
342 return;
343 }
344
345 QPoint vp = contentsToViewport( ( (QDragMoveEvent*)e )->pos() );
346 QListViewItem *i = itemAt( vp );
347 if ( i ) {
348 setSelected( i, TRUE );
349 e->accept();
350 if ( i != dropItem ) {
351 autoopen_timer->stop();
352 dropItem = i;
353 autoopen_timer->start( autoopenTime );
354 }
355 switch ( e->action() ) {
356 case QDropEvent::Copy:
357 break;
358 case QDropEvent::Move:
359 e->acceptAction();
360 break;
361 case QDropEvent::Link:
362 e->acceptAction();
363 break;
364 default:
365 ;
366 }
367 } else {
368 e->ignore();
369 autoopen_timer->stop();
370 dropItem = 0;
371 }
372}
373
374void DirectoryView::contentsDragLeaveEvent( QDragLeaveEvent * )
375{
376 autoopen_timer->stop();
377 dropItem = 0;
378
379 setCurrentItem( oldCurrent );
380 setSelected( oldCurrent, TRUE );
381}
382
383void DirectoryView::contentsDropEvent( QDropEvent *e )
384{
385 autoopen_timer->stop();
386
387 if ( !QUriDrag::canDecode(e) ) {
388 e->ignore();
389 return;
390 }
391
392 QListViewItem *item = itemAt( contentsToViewport(e->pos()) );
393 if ( item ) {
394
395 QStrList lst;
396
397 QUriDrag::decode( e, lst );
398
399 QString str;
400
401 switch ( e->action() ) {
402 case QDropEvent::Copy:
403 str = "Copy";
404 break;
405 case QDropEvent::Move:
406 str = "Move";
407 e->acceptAction();
408 break;
409 case QDropEvent::Link:
410 str = "Link";
411 e->acceptAction();
412 break;
413 default:
414 str = "Unknown";
415 }
416
417 str += "\n\n";
418
419 e->accept();
420
421 for ( uint i = 0; i < lst.count(); ++i ) {
422 QString filename = QDir::convertSeparators(QUriDrag::uriToLocalFile(lst.at(i)));
423 str += filename + "\n";
424 }
425 str += QString( "\nTo\n\n %1" )
426 .arg( QDir::convertSeparators(fullPath(item)) );
427
428 QMessageBox::information( this, "Drop target", str, "Not implemented" );
429 } else
430 e->ignore();
431
432}
433
434
435QString DirectoryView::fullPath(QListViewItem* item)
436{
437 QString fullpath = item->text(0);
438 while ( (item=item->parent()) ) {
439 if ( item->parent() )
440 fullpath = item->text(0) + "/" + fullpath;
441 else
442 fullpath = item->text(0) + fullpath;
443 }
444#ifdef Q_WS_WIN
445 if (fullpath.length() > 2 && fullpath[1] != ':') {
446 QDir dir(fullpath);
447 fullpath = dir.currentDirPath().left(2) + fullpath;
448 }
449#endif
450
451 return fullpath;
452}
453
454void DirectoryView::contentsMousePressEvent( QMouseEvent* e )
455{
456 QListView::contentsMousePressEvent(e);
457 QPoint p( contentsToViewport( e->pos() ) );
458 QListViewItem *i = itemAt( p );
459 if ( i ) {
460 // if the user clicked into the root decoration of the item, don't try to start a drag!
461 if ( p.x() > header()->cellPos( header()->mapToActual( 0 ) ) +
462 treeStepSize() * ( i->depth() + ( rootIsDecorated() ? 1 : 0) ) + itemMargin() ||
463 p.x() < header()->cellPos( header()->mapToActual( 0 ) ) ) {
464 presspos = e->pos();
465 mousePressed = TRUE;
466 }
467 }
468}
469
470void DirectoryView::contentsMouseMoveEvent( QMouseEvent* e )
471{
472 if ( mousePressed && ( presspos - e->pos() ).manhattanLength() > QApplication::startDragDistance() ) {
473 mousePressed = FALSE;
474 QListViewItem *item = itemAt( contentsToViewport(presspos) );
475 if ( item ) {
476 QString source = fullPath(item);
477 if ( QFile::exists(source) ) {
478 QUriDrag* ud = new QUriDrag(viewport());
479 ud->setFileNames( source );
480 if ( ud->drag() )
481 QMessageBox::information( this, "Drag source",
482 QString("Delete ") + QDir::convertSeparators(source), "Not implemented" );
483 }
484 }
485 }
486}
487
488void DirectoryView::contentsMouseReleaseEvent( QMouseEvent * )
489{
490 mousePressed = FALSE;
491}
492
493void DirectoryView::setDir( const QString &s )
494{
495 QListViewItemIterator it( this );
496 ++it;
497 for ( ; it.current(); ++it ) {
498 it.current()->setOpen( FALSE );
499 }
500
501 QStringList lst( QStringList::split( "/", s ) );
502 QListViewItem *item = firstChild();
503 QStringList::Iterator it2 = lst.begin();
504 for ( ; it2 != lst.end(); ++it2 ) {
505 while ( item ) {
506 if ( item->text( 0 ) == *it2 ) {
507 item->setOpen( TRUE );
508 break;
509 }
510 item = item->itemBelow();
511 }
512 }
513
514 if ( item )
515 setCurrentItem( item );
516}
517
518void FileItem::setPixmap( QPixmap *p )
519{
520 pix = p;
521 setup();
522 widthChanged( 0 );
523 invalidateHeight();
524 repaint();
525}
526
527
528const QPixmap *FileItem::pixmap( int i ) const
529{
530 if ( i )
531 return 0;
532 return pix;
533}
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