source: trunk/examples/qdir/qdir.cpp@ 164

Last change on this file since 164 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: 9.5 KB
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1/****************************************************************************
2** $Id: qdir.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/dirview.h"
12#include "qdir.h"
13
14#include <qapplication.h>
15#include <qtextview.h>
16#include <qfileinfo.h>
17#include <qfile.h>
18#include <qtextstream.h>
19#include <qhbox.h>
20#include <qspinbox.h>
21#include <qlabel.h>
22#include <qmultilineedit.h>
23#include <qheader.h>
24#include <qevent.h>
25#include <qpainter.h>
26#include <qpopupmenu.h>
27#include <qpushbutton.h>
28#include <qtoolbutton.h>
29#include <qfile.h>
30#include <qtextstream.h>
31#include <qtooltip.h>
32
33#include <stdlib.h>
34
35/* XPM */
36static const char *bookmarks[]={
37 "22 14 8 1",
38 "# c #000080",
39 "a c #585858",
40 "b c #000000",
41 "c c #ffffff",
42 "d c #ffffff",
43 "e c #ffffff",
44 "f c #000000",
45 ". c None",
46 "...bb.................",
47 "..bacb....bbb.........",
48 "..badcb.bbccbab.......",
49 "..bacccbadccbab.......",
50 "..baecdbcccdbab.......",
51 "..bacccbacccbab.......",
52 "..badcdbcecdfab.......",
53 "..bacecbacccbab.......",
54 "..baccdbcccdbab.......",
55 "...badcbacdbbab.......",
56 "....bacbcbbccab.......",
57 ".....babbaaaaab.......",
58 ".....bbabbbbbbb.......",
59 "......bb.............."
60};
61
62/* XPM */
63static const char *home[]={
64 "16 15 4 1",
65 "# c #000000",
66 "a c #ffffff",
67 "b c #c0c0c0",
68 ". c None",
69 ".......##.......",
70 "..#...####......",
71 "..#..#aabb#.....",
72 "..#.#aaaabb#....",
73 "..##aaaaaabb#...",
74 "..#aaaaaaaabb#..",
75 ".#aaaaaaaaabbb#.",
76 "###aaaaaaaabb###",
77 "..#aaaaaaaabb#..",
78 "..#aaa###aabb#..",
79 "..#aaa#.#aabb#..",
80 "..#aaa#.#aabb#..",
81 "..#aaa#.#aabb#..",
82 "..#aaa#.#aabb#..",
83 "..#####.######.."
84};
85
86// ****************************************************************************************************
87
88PixmapView::PixmapView( QWidget *parent )
89 : QScrollView( parent )
90{
91 viewport()->setBackgroundMode( PaletteBase );
92}
93
94void PixmapView::setPixmap( const QPixmap &pix )
95{
96 pixmap = pix;
97 resizeContents( pixmap.size().width(), pixmap.size().height() );
98 viewport()->repaint( FALSE );
99}
100
101void PixmapView::drawContents( QPainter *p, int cx, int cy, int cw, int ch )
102{
103 p->fillRect( cx, cy, cw, ch, colorGroup().brush( QColorGroup::Base ) );
104 p->drawPixmap( 0, 0, pixmap );
105}
106
107// ****************************************************************************************************
108
109Preview::Preview( QWidget *parent )
110 : QWidgetStack( parent )
111{
112 normalText = new QMultiLineEdit( this );
113 normalText->setReadOnly( TRUE );
114 html = new QTextView( this );
115 pixmap = new PixmapView( this );
116 raiseWidget( normalText );
117}
118
119void Preview::showPreview( const QUrl &u, int size )
120{
121 if ( u.isLocalFile() ) {
122 QString path = u.path();
123 QFileInfo fi( path );
124 if ( fi.isFile() && (int)fi.size() > size * 1000 ) {
125 normalText->setText( tr( "The File\n%1\nis too large, so I don't show it!" ).arg( path ) );
126 raiseWidget( normalText );
127 return;
128 }
129
130 QPixmap pix( path );
131 if ( pix.isNull() ) {
132 if ( fi.isFile() ) {
133 QFile f( path );
134 if ( f.open( IO_ReadOnly ) ) {
135 QTextStream ts( &f );
136 QString text = ts.read();
137 f.close();
138 if ( fi.extension().lower().contains( "htm" ) ) {
139 QString url = html->mimeSourceFactory()->makeAbsolute( path, html->context() );
140 html->setText( text, url );
141 raiseWidget( html );
142 return;
143 } else {
144 normalText->setText( text );
145 raiseWidget( normalText );
146 return;
147 }
148 }
149 }
150 normalText->setText( QString::null );
151 raiseWidget( normalText );
152 } else {
153 pixmap->setPixmap( pix );
154 raiseWidget( pixmap );
155 }
156 } else {
157 normalText->setText( "I only show local files!" );
158 raiseWidget( normalText );
159 }
160}
161
162// ****************************************************************************************************
163
164PreviewWidget::PreviewWidget( QWidget *parent )
165 : QVBox( parent ), QFilePreview()
166{
167 setSpacing( 5 );
168 setMargin( 5 );
169 QHBox *row = new QHBox( this );
170 row->setSpacing( 5 );
171 (void)new QLabel( tr( "Only show files smaller than: " ), row );
172 sizeSpinBox = new QSpinBox( 1, 10000, 1, row );
173 sizeSpinBox->setSuffix( " KB" );
174 sizeSpinBox->setValue( 64 );
175 row->setFixedHeight( 10 + sizeSpinBox->sizeHint().height() );
176 preview = new Preview( this );
177}
178
179void PreviewWidget::previewUrl( const QUrl &u )
180{
181 preview->showPreview( u, sizeSpinBox->value() );
182}
183
184// ****************************************************************************************************
185
186CustomFileDialog::CustomFileDialog()
187 : QFileDialog( 0, 0, TRUE )
188{
189 setDir( "/" );
190
191 dirView = new DirectoryView( this, 0, TRUE );
192 dirView->addColumn( "" );
193 dirView->header()->hide();
194 ::Directory *root = new ::Directory( dirView, "/" );
195 root->setOpen( TRUE );
196 dirView->setFixedWidth( 150 );
197
198 addLeftWidget( dirView );
199
200 QPushButton *p = new QPushButton( this );
201 p->setPixmap( QPixmap( bookmarks ) );
202 QToolTip::add( p, tr( "Bookmarks" ) );
203
204 bookmarkMenu = new QPopupMenu( this );
205 connect( bookmarkMenu, SIGNAL( activated( int ) ),
206 this, SLOT( bookmarkChosen( int ) ) );
207 addId = bookmarkMenu->insertItem( tr( "Add bookmark" ) );
208 bookmarkMenu->insertSeparator();
209
210 QFile f( ".bookmarks" );
211 if ( f.open( IO_ReadOnly ) ) {
212 QDataStream ds( &f );
213 ds >> bookmarkList;
214 f.close();
215
216 QStringList::Iterator it = bookmarkList.begin();
217 for ( ; it != bookmarkList.end(); ++it ) {
218 bookmarkMenu->insertItem( *it );
219 }
220 }
221
222 p->setPopup( bookmarkMenu );
223
224 addToolButton( p, TRUE );
225
226 connect( dirView, SIGNAL( folderSelected( const QString & ) ),
227 this, SLOT( setDir2( const QString & ) ) );
228 connect( this, SIGNAL( dirEntered( const QString & ) ),
229 dirView, SLOT( setDir( const QString & ) ) );
230
231 QToolButton *b = new QToolButton( this );
232 QToolTip::add( b, tr( "Go Home!" ) );
233 b->setPixmap( QPixmap( home ) );
234 connect( b, SIGNAL( clicked() ),
235 this, SLOT( goHome() ) );
236
237 addToolButton( b );
238
239 resize( width() + width() / 3, height() );
240}
241
242CustomFileDialog::~CustomFileDialog()
243{
244 if ( !bookmarkList.isEmpty() ) {
245 QFile f( ".bookmarks" );
246 if ( f.open( IO_WriteOnly ) ) {
247 QDataStream ds( &f );
248 ds << bookmarkList;
249 f.close();
250 }
251 }
252}
253
254void CustomFileDialog::setDir2( const QString &s )
255{
256 blockSignals( TRUE );
257 setDir( s );
258 blockSignals( FALSE );
259}
260
261void CustomFileDialog::showEvent( QShowEvent *e )
262{
263 QFileDialog::showEvent( e );
264 dirView->setDir( dirPath() );
265}
266
267void CustomFileDialog::bookmarkChosen( int i )
268{
269 if ( i == addId ) {
270 bookmarkList << dirPath();
271 bookmarkMenu->insertItem( dirPath() );
272 } else {
273 setDir( bookmarkMenu->text( i ) );
274 }
275}
276
277void CustomFileDialog::goHome()
278{
279 if ( getenv( "HOME" ) )
280 setDir( getenv( "HOME" ) );
281 else
282 setDir( "/" );
283}
284
285// ****************************************************************************************************
286
287int main( int argc, char ** argv )
288{
289 QFileDialog::Mode mode = QFileDialog::ExistingFile;
290 QString start;
291 QString filter;
292 QString caption;
293 bool preview = FALSE;
294 bool custom = FALSE;
295 QApplication a( argc, argv );
296 for (int i=1; i<argc; i++) {
297 QString arg = argv[i];
298 if ( arg == "-any" )
299 mode = QFileDialog::AnyFile;
300 else if ( arg == "-dir" )
301 mode = QFileDialog::Directory;
302 else if ( arg == "-default" )
303 start = argv[++i];
304 else if ( arg == "-filter" )
305 filter = argv[++i];
306 else if ( arg == "-preview" )
307 preview = TRUE;
308 else if ( arg == "-custom" )
309 custom = TRUE;
310 else if ( arg[0] == '-' ) {
311 qDebug("Usage: qdir [-any | -dir | -custom] [-preview] [-default f] {-filter f} [caption ...]\n"
312 " -any Get any filename, need not exist.\n"
313 " -dir Return a directory rather than a file.\n"
314 " -custom Opens a customized QFileDialog with \n"
315 " dir browser, bookmark menu, etc.\n"
316 " -preview Show a preview widget.\n"
317 " -default f Start from directory/file f.\n"
318 " -filter f eg. '*.gif' '*.bmp'\n"
319 " caption ... Caption for dialog.\n"
320 );
321 return 1;
322 } else {
323 if ( !caption.isNull() )
324 caption += ' ';
325 caption += arg;
326 }
327 }
328
329 if ( !start )
330 start = QDir::currentDirPath();
331
332 if ( !caption )
333 caption = mode == QFileDialog::Directory
334 ? "Choose directory..." : "Choose file...";
335
336 if ( !custom ) {
337 QFileDialog fd( QString::null, filter, 0, 0, TRUE );
338 fd.setMode( mode );
339 if ( preview ) {
340 fd.setContentsPreviewEnabled( TRUE );
341 PreviewWidget *pw = new PreviewWidget( &fd );
342 fd.setContentsPreview( pw, pw );
343 fd.setViewMode( QFileDialog::List );
344 fd.setPreviewMode( QFileDialog::Contents );
345 }
346 fd.setCaption( caption );
347 fd.setSelection( start );
348 if ( fd.exec() == QDialog::Accepted ) {
349 QString result = fd.selectedFile();
350 printf("%s\n", (const char*)result);
351 return 0;
352 } else {
353 return 1;
354 }
355 } else {
356 CustomFileDialog fd;
357 fd.exec();
358 return 1;
359 }
360}
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