editors/sc-ide/widgets/util/path_chooser_widget.hpp

   1 /*
   2     SuperCollider Qt IDE
   3     Copyright (c) 2012 Jakob Leben & Tim Blechmann
   4     http://www.audiosynth.com
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
  19 */
  20
  21 #ifndef SCIDE_WIDGETS_PATH_CHOOSER_WIDGET_HPP_INCLUDED
  22 #define SCIDE_WIDGETS_PATH_CHOOSER_WIDGET_HPP_INCLUDED
  23
  24 #include <QLineEdit>
  25 #include <QPushButton>
  26 #include <QFileDialog>
  27 #include <QHBoxLayout>
  28 #include <QPointer>
  29
  30 namespace ScIDE {
  31
  32 class PathChooserWidget : public QWidget
  33 {
  34     Q_OBJECT
  35
  36 public:
  37     PathChooserWidget
  38     (QWidget *parent = 0, QFileDialog::FileMode mode = QFileDialog::ExistingFile ):
  39         QWidget(parent),
  40         mMode(mode),
  41         dialog(0)
  42     {
  43         mTextField = new QLineEdit;
  44
  45         mButton = new QPushButton;
  46         mButton->setIcon( QIcon::fromTheme("folder") );
  47         mButton->setFixedWidth( 30 );
  48         mButton->setFlat(true);
  49         //setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
  50
  51         QHBoxLayout *box = new QHBoxLayout(this);
  52         box->addWidget(mTextField);
  53         box->addWidget(mButton);
  54         box->setContentsMargins(0,0,0,0);
  55         box->setSpacing(1);
  56
  57         connect(mButton, SIGNAL(clicked()), this, SLOT(execDialog()), Qt::QueuedConnection);
  58     }
  59
  60     QString text() const { return mTextField->text(); }
  61
  62     void setText( const QString & text ) { mTextField->setText(text); }
  63
  64     void setFileMode( QFileDialog::FileMode mode ) { mMode = mode; }
  65
  66 public Q_SLOTS:
  67     void execDialog()
  68     {
  69         if(!dialog) {
  70             QWidget *parent = parentWidget();
  71             dialog = new QFileDialog(parent ? parent : this);
  72         }
  73         dialog->setFileMode(mMode);
  74         dialog->selectFile(mTextField->text());
  75
  76         QPointer<QLineEdit> textField = mTextField;
  77         int result = dialog->exec();
  78         if (result == QDialog::Accepted && textField) {
  79             QStringList paths = dialog->selectedFiles();
  80             textField->setText(paths.count() ? paths[0] : "");
  81         }
  82     }
  83
  84 Q_SIGNALS:
  85     void textChanged( const QString & );
  86
  87 private:
  88     QLineEdit *mTextField;
  89     QPushButton *mButton;
  90     QFileDialog::FileMode mMode;
  91     QFileDialog *dialog;
  92 };
  93
  94 } // namespace ScIDE
  95
  96 #endif // SCIDE_WIDGETS_PATH_CHOOSER_WIDGET_HPP_INCLUDED