SeExpr: /disk1/scratch/aselle/projects/seexpr/SeExpr/src/SeExprEditor/SeExprEdFileDialog.cpp Source File

00001 /* 
00002 * (c) Disney Enterprises, Inc.  All rights reserved.
00003 *
00004 * This file is licensed under the terms of the Microsoft Public License (MS-PL)
00005 * as defined at: http://opensource.org/licenses/MS-PL.
00006 *
00007 * A complete copy of this license is included in this distribution as the file
00008 * LICENSE.
00009 */
00010 
00011 // NOTE: This is based on Dan's paint3d FileDialog
00012 
00013 #include "SeExprEdFileDialog.h"
00014 
00015 
00016 #include <QtGui/QToolButton>
00017 #include <QtGui/QPalette>
00018 #include <QtGui/QMenu>
00019 #include <QtCore/QTimer>
00020 #include <QtCore/QUrl>
00021 #include <iostream>
00022 
00023 using std::max;
00024 using std::min;
00025 
00026 static const char* folder_fav[]={
00027     "17 16 4 1",
00028     "# c #000000",
00029     ". c None",
00030     "a c #ffff98",
00031     "b c #cc0000",
00032     ".................",
00033     ".................",
00034     "...#####.........",
00035     "..#aaaaa#........",
00036     ".###############.",
00037     ".#aaaaaaaaaaaaa#.",
00038     ".#aaaa##a##aaaa#.",
00039     ".#aaa#bb#bb#aaa#.",
00040     ".#aaa#bbbbb#aaa#.",
00041     ".#aaa#bbbbb#aaa#.",
00042     ".#aaaa#bbb#aaaa#.",
00043     ".#aaaaa#b#aaaaa#.",
00044     ".#aaaaaa#aaaaaa#.",
00045     ".#aaaaaaaaaaaaa#.",
00046     ".###############.",
00047     "................."};
00048 
00049 
00050 void SeExprEdPreviewWidget::makePreview(const QString& path)
00051 {
00052     QFileInfo fi( path );
00053     
00054     if ( fi.isDir() )
00055     {
00056         QString s = fi.absoluteFilePath()+"/preview.tif";
00057         if (!QFile::exists(s)) s = fi.absoluteFilePath()+"/preview.png";
00058         if (!QFile::exists(s)) _pm->setPixmap( QPixmap()); //nothing to preview
00059         
00060         QPixmap pix( s );
00061         if ( !pix.isNull() ) _pm->setPixmap( pix );
00062         else _pm->setPixmap( QPixmap() );
00063     }
00064     else if (fi.exists())
00065     {
00066         QImage img(fi.absoluteFilePath());
00067         if(!img.isNull())
00068             _pm->setPixmap(QPixmap::fromImage(img.scaled(128,128,Qt::KeepAspectRatio,Qt::SmoothTransformation)));
00069         else 
00070             _pm->setPixmap( QPixmap() );
00071     }
00072     else _pm->setPixmap( QPixmap() );
00073     _pm->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
00074 }
00075 
00076 
00077 SeExprEdPreviewWidget::SeExprEdPreviewWidget( QWidget *parent )
00078     : QWidget( parent )
00079 {
00080     _pm = new QLabel( this );
00081     _pm->setFrameStyle( QFrame::StyledPanel );
00082     _pm->setBackgroundRole( QPalette::Base );
00083     _pm->setAutoFillBackground(true);
00084     QVBoxLayout *layout = new QVBoxLayout;
00085     layout->setSpacing( 0 );
00086     layout->setMargin( 0 );
00087     layout->addWidget(_pm);
00088     setLayout(layout);
00089 }
00090 
00091 SeExprEdFileDialog::SeExprEdFileDialog(QWidget* parent) : QFileDialog(parent)
00092 {
00093     //QStringList pathlist(QString(globals.startpath.c_str()));
00094     //addLookInEntries(pathlist);
00095     
00096     _nameEdit = 0;
00097     _okButton = 0;
00098     
00099     // disconnect broken return press handling (mishandles new directory names)
00100     QList<QLineEdit*> lineedits = findChildren<QLineEdit*>(QRegExp());
00101     if (lineedits.size()) _nameEdit = (QLineEdit*)lineedits.at(0);
00102     if (_nameEdit) {
00103         _nameEdit->disconnect(SIGNAL(returnPressed()));
00104         connect(_nameEdit, SIGNAL(returnPressed()), SLOT(editReturnPress()));
00105     }
00106     
00107     // connect custom ok clicked handler
00108     QList<QPushButton*> myWidgets = findChildren<QPushButton*>(QRegExp());
00109     for (int w = 0; w < myWidgets.size(); w++)
00110     {
00111         QPushButton* item = (QPushButton*)myWidgets.at(w);
00112         if (item->text().contains("Open")) _okButton = item;
00113     }
00114     if (_okButton) connect(_okButton, SIGNAL(clicked()), SLOT(handleOk()));
00115     
00116     connect(this, SIGNAL(currentChanged(const QString&)),
00117             this, SLOT(selChanged(const QString&)));
00118 
00119     // don't create missing directories by default
00120     _createDir = 0;
00121     _pw = 0;
00122     _favDir = "";
00123     _combo = 0;
00124     _combolabel = 0;
00125     _cb = 0;
00126     _temppath = "";
00127     
00128     setMinimumWidth(680);
00129     resize(840,440);
00130 }
00131 
00132 void SeExprEdFileDialog::handleOk()
00133 {
00134     if (fileMode() != QFileDialog::DirectoryOnly) return;
00135     QString entry = _nameEdit->text();
00136     if (entry == "") return;
00137 
00138     // create directory if needed
00139     if (_createDir) {
00140         QDir d(directory());
00141         if (!d.exists(entry)) {
00142             if (d.mkdir(entry)) {
00143                 _temppath = directory().absolutePath();
00144                 setDirectory(_temppath+"/"+entry);
00145                 _nameEdit->setText("");
00146                 if (_okButton)
00147                     _okButton->animateClick(); // retry click to accept entry
00148                     
00149                 QTimer::singleShot( 200, this, SLOT(resetDir()) );
00150             }
00151         }
00152     }
00153 }
00154 
00155 void SeExprEdFileDialog::editReturnPress()
00156 {
00157     if (!_nameEdit) return;
00158     
00159     QString str = _nameEdit->text();
00160     if (str.contains('/'))
00161     {
00162         QDir d;
00163         if (d.cd(str))
00164         {
00165             setDirectory(str);
00166             _nameEdit->setText("");
00167         }
00168         else
00169         {
00170             int slashcount = str.count('/');
00171             
00172             QString foundDir = "";
00173             for (int i=0; i<slashcount; i++)
00174             {
00175                 QString section = str.section('/', 0, i);
00176                 if (d.cd(section)) foundDir = section;
00177             }
00178             if (foundDir.length())
00179             {
00180                 setDirectory(foundDir);
00181                 QString remainder = str.right(str.length()-(foundDir.length()+1));
00182                 _nameEdit->setText(remainder);
00183             }
00184             
00185             if (d.cd(str)) setDirectory(str);
00186             
00187         }
00188     }
00189     else if (fileMode()==QFileDialog::DirectoryOnly) handleOk();
00190     else accept();
00191 }
00192 
00193 void SeExprEdFileDialog::addFavoritesButton(QString dirname, QString linkname,
00194     QString linkdir)
00195 {
00196     QGridLayout *layout = findChild<QGridLayout *>("gridLayout");
00197     if (!layout) return;
00198 
00199     QDir d;
00200     
00201     std::string favlocation = getenv("HOME");
00202     favlocation += "/paint3d/favorites/";
00203     
00204     QString dirpath = QString::fromStdString(favlocation);
00205     if (!d.cd(dirpath)) d.mkpath(dirpath);
00206     dirpath += dirname;
00207     if (!d.cd(dirpath)) d.mkpath(dirpath);
00208     
00209     if (!(linkdir.isEmpty() || linkname.isEmpty()))
00210     {
00211         if (!QFile::exists(dirpath+linkname))
00212             QFile::link(linkdir,dirpath+linkname);
00213     }
00214     
00215     _favDir = dirpath;
00216     
00217     static QPixmap folderFav( folder_fav );
00218     QToolButton* fav = new QToolButton(this);
00219     fav->setFixedSize(18,18);
00220     fav->setIcon(folderFav);
00221     fav->setToolTip("Favorites");
00222     
00223     layout->addWidget(fav,0,3);
00224     
00225     connect(fav, SIGNAL(clicked()), SLOT(gotoFavorites()));
00226 }
00227 
00228 void SeExprEdFileDialog::gotoFavorites()
00229 {
00230     if (_favDir!="") setDirectory( _favDir );
00231 }
00232 
00233 void SeExprEdFileDialog::addLookInEntries(QStringList paths)
00234 {
00235     if ( paths.isEmpty ()) return;
00236     
00237     QStringList h = history();
00238     for (QStringList::Iterator it=paths.begin(); it!=paths.end(); ++it)
00239     {
00240         if (!h.contains(*it)) h.push_back(*it);
00241     }
00242     setHistory(h);
00243 }
00244 
00245 void SeExprEdFileDialog::saveLookInEntries()
00246 {
00247     _lookInList = history();
00248 }
00249 
00250 void SeExprEdFileDialog::restoreLookInEntries()
00251 {
00252     setHistory(_lookInList);
00253 }
00254 
00255 static QStringList makeFiltersList( const QString &filter )
00256 {
00257     if ( filter.isEmpty() )
00258         return QStringList();
00259 
00260     int i = filter.indexOf( ";;", 0 );
00261     QString sep( ";;" );
00262     if ( i == -1 ) {
00263         if ( filter.indexOf( "\n", 0 ) != -1 ) {
00264             sep = "\n";
00265             i = filter.indexOf( sep, 0 );
00266         }
00267     }
00268 
00269     return filter.split( sep );
00270 }
00271 
00272 QString SeExprEdFileDialog::getOpenFileName( const QString& caption,
00273     const QString& startWith, const QString& filter )
00274 {
00275     if ( !filter.isEmpty() )
00276     {
00277         QStringList filters = makeFiltersList( filter );
00278         setNameFilters( filters );
00279     }
00280 
00281     if ( !startWith.isEmpty() ) setDirectory( startWith );
00282     if ( !caption.isNull() ) setWindowTitle( caption );
00283     setFileMode( QFileDialog::ExistingFile );
00284     setAcceptMode( QFileDialog::AcceptOpen );
00285     selectFile("");
00286     
00287     QString result;
00288     if ( exec()==QDialog::Accepted )
00289     {
00290         result = selectedFiles().first();
00291         _workingDirectory = directory().absolutePath();
00292     }
00293     resetPreview();
00294 
00295     return result;
00296 }
00297 
00298 QStringList SeExprEdFileDialog::getOpenFileNames( const QString& caption,
00299     const QString& startWith, const QString& filter )
00300 {
00301     if ( !filter.isEmpty() )
00302     {
00303         QStringList filters = makeFiltersList( filter );
00304         setNameFilters( filters );
00305     }
00306 
00307     if ( !startWith.isEmpty() ) setDirectory( startWith );
00308     if ( !caption.isNull() ) setWindowTitle( caption );
00309     setFileMode( QFileDialog::ExistingFiles );
00310     setAcceptMode( QFileDialog::AcceptOpen );
00311     selectFile("");
00312     
00313     QString result;
00314     QStringList lst;
00315     if ( exec()==QDialog::Accepted )
00316     {
00317         lst = selectedFiles();
00318         _workingDirectory = directory().absolutePath();
00319     }
00320     resetPreview();
00321 
00322     return lst;
00323 }
00324 
00325 QString SeExprEdFileDialog::getExistingDirectory( const QString& caption,
00326     const QString& startWith, const QString& filter )
00327 {
00328     if ( !filter.isEmpty() )
00329     {
00330         QStringList filters = makeFiltersList( filter );
00331         setNameFilters( filters );
00332     }
00333 
00334     if ( !startWith.isEmpty() ) setDirectory( startWith );
00335     if ( !caption.isNull() ) setWindowTitle( caption );
00336     setFileMode( QFileDialog::DirectoryOnly );
00337     selectFile("");
00338     
00339     QString result;
00340     if ( exec()==QDialog::Accepted )
00341     {
00342         result = selectedFiles().first();
00343         _workingDirectory = directory().absolutePath();
00344     }
00345     resetPreview();
00346 
00347     return result;
00348 }
00349 
00350 QString SeExprEdFileDialog::getExistingOrNewDirectory( const QString& caption,
00351     const QString& startWith, const QString& filter )
00352 {
00353     _createDir = 1;
00354     QString result = getExistingDirectory(caption, startWith, filter);
00355     _createDir = 0;
00356     resetPreview();
00357     return result;
00358 }
00359 
00360 QString SeExprEdFileDialog::getSaveFileName( const QString& caption,
00361     const QString& startWith, const QString& filter )
00362 {
00363     if ( !filter.isEmpty() )
00364     {
00365         QStringList filters = makeFiltersList( filter );
00366         setNameFilters( filters );
00367     }
00368     
00369     if ( !startWith.isEmpty() ) setDirectory( startWith );
00370     if ( !caption.isNull() ) setWindowTitle( caption );
00371     setFileMode( QFileDialog::AnyFile );
00372     setAcceptMode( QFileDialog::AcceptSave );
00373     selectFile("");
00374     
00375     QString result;
00376     if ( exec()==QDialog::Accepted )
00377     {
00378         result = selectedFiles().first();
00379         _workingDirectory = directory().absolutePath();
00380     }
00381     resetPreview();
00382 
00383     return result;
00384 }
00385 
00386 
00387 void SeExprEdFileDialog::setPreview()
00388 {
00389     QGridLayout *layout = findChild<QGridLayout *>("gridLayout");
00390     if (!layout) return;
00391     
00392     _pw = new SeExprEdPreviewWidget( this );
00393     _pw->setFixedWidth(160);
00394     _pw->setMinimumHeight(160);
00395     layout->addWidget(_pw,1,3);
00396 }
00397 
00398 void SeExprEdFileDialog::resetPreview()
00399 {
00400     if (_pw) _pw->reset();
00401 }
00402 
00403 void SeExprEdFileDialog::addCheckBox(QString s)
00404 {
00405     QGridLayout *layout = findChild<QGridLayout *>("gridLayout");
00406     if (!layout) return;
00407     
00408     _cb = new QCheckBox( s, this );
00409     _cb->setChecked(false);
00410     
00411     layout->addWidget(_cb, 4, _combo ? 2 : 0);
00412 }
00413 
00414 bool SeExprEdFileDialog::checkBoxStatus()
00415 {
00416     if (!_cb) return false;
00417     return _cb->isChecked();
00418 }
00419 
00420 void SeExprEdFileDialog::showCheckBox()
00421 {
00422     if (_cb) _cb->show();
00423 }
00424 
00425 void SeExprEdFileDialog::hideCheckBox()
00426 {
00427     if (_cb) _cb->hide();
00428 }
00429 
00430 void SeExprEdFileDialog::addComboBox(QString s, QStringList sl)
00431 {
00432     QGridLayout *layout = findChild<QGridLayout *>("gridLayout");
00433     if (!layout) return;
00434     
00435     _combolabel = new QLabel( s, this );
00436     _combolabel->setFixedWidth(58);
00437     _combo = new QComboBox( this );
00438     _combo->setEditable(true);
00439     _combo->setFixedWidth(160);
00440     for ( QStringList::Iterator it = sl.begin(); it != sl.end(); ++it )
00441         _combo->addItem(*it);
00442 
00443     int rownum = layout->rowCount();
00444     layout->addWidget(_combo,rownum,1);
00445     layout->addWidget(_combolabel,rownum,0);
00446 }
00447 
00448 void SeExprEdFileDialog::showComboBox()
00449 {
00450     if (_combo) _combo->show();
00451     if (_combolabel) _combolabel->show();
00452 }
00453 
00454 void SeExprEdFileDialog::hideComboBox()
00455 {
00456     if (_combo) _combo->hide();
00457     if (_combolabel) _combolabel->hide();
00458 }
00459 
00460 void SeExprEdFileDialog::selChanged(const QString& path)
00461 {
00462     if (_pw) _pw->makePreview(path);
00463 }
00464 
00465 void SeExprEdFileDialog::setButtonName(const QString& str)
00466 {
00467     if (_okButton) _okButton->setText( str );
00468 }
00469 
00470 void SeExprEdFileDialog::addSidebarShortcut(const QString& s)
00471 {
00472     QList<QUrl> urls = sidebarUrls();
00473     QUrl url = QUrl::fromLocalFile(s);
00474     if (url.isValid() && QFile::exists(s))
00475     {
00476         urls.push_back(url);
00477         setSidebarUrls(urls);
00478     }
00479 }