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+/*
+ *
+ * $Id: k3bfiletreecombobox.cpp 619556 2007-01-03 17:38:12Z trueg $
+ * Copyright (C) 2003 Sebastian Trueg <trueg@k3b.org>
+ *
+ * This file is part of the K3b project.
+ * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * See the file "COPYING" for the exact licensing terms.
+ */
+
+
+#include "k3bfiletreecombobox.h"
+#include "k3bfiletreeview.h"
+
+#include <k3bdevicemanager.h>
+#include <k3bdevice.h>
+#include <k3bcore.h>
+#include <k3bglobals.h>
+
+#include <qrect.h>
+#include <qapplication.h>
+#include <qstyle.h>
+#include <qlistbox.h>
+#include <qheader.h>
+#include <qevent.h>
+#include <qpainter.h>
+#include <qpalette.h>
+#include <qdrawutil.h>
+#include <qdir.h>
+
+#include <kdebug.h>
+#include <kiconloader.h>
+#include <kurlcompletion.h>
+#include <kuser.h>
+
+
+class K3bFileTreeComboBox::Private
+{
+public:
+ Private() {
+ poppedUp = false;
+ ignoreNextMouseClick = false;
+ }
+ bool poppedUp;
+ bool ignoreNextMouseClick; // used when the view was hidden with the arrow button
+
+ KURLCompletion* urlCompletion;
+};
+
+
+K3bFileTreeComboBox::K3bFileTreeComboBox( QWidget* parent, const char* name )
+ : KComboBox( true, parent, name )
+{
+ d = new Private;
+
+ d->urlCompletion = new KURLCompletion();
+ setCompletionObject( d->urlCompletion );
+
+ m_fileTreeView = new K3bFileTreeView( this );
+ m_fileTreeView->hide();
+ m_fileTreeView->reparent( this, WType_Popup, QPoint(0,0), false );
+ m_fileTreeView->header()->hide();
+ m_fileTreeView->installEventFilter(this);
+
+ m_fileTreeView->addDefaultBranches();
+ m_fileTreeView->addCdDeviceBranches( k3bcore->deviceManager() );
+
+ // HACK! Why the hell is QComboBox that closed???
+ listBox()->insertItem( "HACK" );
+
+ connect( m_fileTreeView, SIGNAL(deviceExecuted(K3bDevice::Device*)),
+ this, SLOT(slotDeviceExecuted(K3bDevice::Device*)) );
+ connect( m_fileTreeView, SIGNAL(urlExecuted(const KURL&)),
+ this, SLOT(slotUrlExecuted(const KURL&)) );
+
+ connect( lineEdit(), SIGNAL(returnPressed()),
+ this, SLOT(slotGoUrl()) );
+
+ // TODO: subclass KURLCompletition to support the dev:/ stuff and block any non-local urls
+}
+
+
+K3bFileTreeComboBox::~K3bFileTreeComboBox()
+{
+ delete d->urlCompletion;
+ delete d;
+}
+
+
+void K3bFileTreeComboBox::slotDeviceExecuted( K3bDevice::Device* dev )
+{
+ setDevice( dev );
+ popdown();
+ emit deviceExecuted( dev );
+}
+
+
+void K3bFileTreeComboBox::slotUrlExecuted( const KURL& url )
+{
+ setUrl( url );
+ emit urlExecuted( url );
+}
+
+
+void K3bFileTreeComboBox::setUrl( const KURL& url )
+{
+ setEditText( SmallIcon("folder"), K3b::convertToLocalUrl(url).path() );
+ popdown();
+}
+
+
+void K3bFileTreeComboBox::setDevice( K3bDevice::Device* dev )
+{
+ setEditText( SmallIcon("cdrom_unmount"), dev->vendor() + " " + dev->description() + " (" + dev->blockDeviceName() + ")" );
+}
+
+
+void K3bFileTreeComboBox::setEditText( const QPixmap& pix, const QString& t )
+{
+ // QComboBox::changeItem() doesn't honor the pixmap when
+ // using an editable combobox, so we just remove and insert
+
+ setUpdatesEnabled( false );
+ lineEdit()->setUpdatesEnabled( false );
+
+ removeItem(0);
+ insertItem( pix, t, 0 );
+ lineEdit()->setText( t );
+
+ setUpdatesEnabled( true );
+ lineEdit()->setUpdatesEnabled( true );
+ update();
+}
+
+
+void K3bFileTreeComboBox::setCurrentItem( int )
+{
+ // the current item is always 0 due to the ugly but quite smart HACK ;)
+}
+
+
+void K3bFileTreeComboBox::setCurrentText( const QString& )
+{
+}
+
+
+void K3bFileTreeComboBox::popup()
+{
+ // code mainly from qcombobox.cpp
+
+ m_fileTreeView->triggerUpdate();
+ int w = QMAX( m_fileTreeView->sizeHint().width(), width() );
+ int h = m_fileTreeView->sizeHint().height();
+ QRect screen = QApplication::desktop()->availableGeometry( this );
+ int sx = screen.x(); // screen pos
+ int sy = screen.y();
+ int sw = screen.width(); // screen width
+ int sh = screen.height(); // screen height
+ QPoint pos = mapToGlobal( QPoint(0,height()) );
+ // ## Similar code is in QPopupMenu
+ int x = pos.x();
+ int y = pos.y();
+
+ // the complete widget must be visible
+ if ( x + w > sx + sw )
+ x = sx+sw - w;
+ if ( x < sx )
+ x = sx;
+ if (y + h > sy+sh && y - h - height() >= 0 )
+ y = y - h - height();
+
+ QRect rect =
+ style().querySubControlMetrics( QStyle::CC_ComboBox, this,
+ QStyle::SC_ComboBoxListBoxPopup,
+ QStyleOption( x, y, w, h ) );
+ // work around older styles that don't implement the combobox
+ // listbox popup subcontrol
+ if ( rect.isNull() )
+ rect.setRect( x, y, w, h );
+
+ m_fileTreeView->setGeometry( rect );
+ m_fileTreeView->raise();
+
+ // TODO: somehow set the current item
+
+ m_fileTreeView->show();
+ d->poppedUp = true;
+ d->ignoreNextMouseClick = false;
+}
+
+
+void K3bFileTreeComboBox::popdown()
+{
+ m_fileTreeView->hide();
+ d->poppedUp = false;
+ repaint(); // repaint the arrow
+}
+
+
+void K3bFileTreeComboBox::slotGoUrl()
+{
+ QString p = currentText();
+
+ // check for a media url or a device string
+ if( K3bDevice::Device* dev = K3b::urlToDevice( p ) ) {
+ emit deviceExecuted( dev );
+ return;
+ }
+
+ // check for our own internal format
+ else if( p.contains("/dev/") ) {
+ int pos1 = p.findRev('(');
+ int pos2 = p.findRev(')');
+ QString devStr = p.mid( pos1+1, pos2-pos1-1 );
+ if( K3bDevice::Device* dev = k3bcore->deviceManager()->findDevice( devStr ) ) {
+ emit deviceExecuted( dev );
+ return;
+ }
+ }
+
+ // no device -> select url
+
+ //
+ // Properly replace home dirs.
+ // a single ~ will be replaced with the current user's home dir
+ // while for example "~ftp" will be replaced by the home dir of user
+ // ftp
+ //
+ // TODO: move this to k3bglobals
+
+ // to expand another user's home dir we need a tilde followed by a user name
+ static QRegExp someUsersHomeDir( "\\~([^/]+)" );
+ int pos = 0;
+ while( ( pos = someUsersHomeDir.search( p, pos ) ) != -1 ) {
+ KUser user( someUsersHomeDir.cap(1) );
+ if( user.isValid() )
+ p.replace( pos, someUsersHomeDir.cap(1).length() + 1, user.homeDir() );
+ else
+ ++pos; // skip this ~
+ }
+
+ // now replace the unmatched tildes with our home dir
+ p.replace( "~", K3b::prepareDir( QDir::homeDirPath() ) );
+
+
+ lineEdit()->setText( p );
+ KURL url;
+ url.setPath( p );
+ emit urlExecuted( url );
+}
+
+
+bool K3bFileTreeComboBox::eventFilter( QObject* o, QEvent* e )
+{
+ if( dynamic_cast<K3bFileTreeView*>(o) == m_fileTreeView ) {
+ if( e->type() == QEvent::DragLeave ) {
+ // the user dragged a dir from the filetree
+ // now
+ popdown();
+ return true;
+ }
+ else if( e->type() == QEvent::KeyPress ) {
+ QKeyEvent *k = (QKeyEvent *)e;
+ if( k->key() == Qt::Key_Escape ) {
+ popdown();
+ return true;
+ }
+ }
+ else if( e->type() == QEvent::MouseButtonPress ) {
+ QMouseEvent* me = (QMouseEvent*)e;
+ if ( !m_fileTreeView->rect().contains( me->pos() ) ) {
+ QRect arrowRect = style().querySubControlMetrics( QStyle::CC_ComboBox, this,
+ QStyle::SC_ComboBoxArrow);
+ arrowRect = QStyle::visualRect(arrowRect, this);
+
+ // Correction for motif style, where arrow is smaller
+ // and thus has a rect that doesn't fit the button.
+ arrowRect.setHeight( QMAX( height() - (2 * arrowRect.y()), arrowRect.height() ) );
+
+ if ( arrowRect.contains( mapFromGlobal(me->globalPos()) ) ) {
+ d->ignoreNextMouseClick = true; // in the case we hit the arrow button
+ }
+ popdown();
+ }
+ return false; // we need this in the listview
+ }
+
+ return false;
+ }
+ else
+ return KComboBox::eventFilter(o, e);
+}
+
+
+void K3bFileTreeComboBox::mousePressEvent( QMouseEvent* e )
+{
+ // mainly from qcombobox.cpp
+
+ if ( e->button() != LeftButton )
+ return;
+ if ( d->ignoreNextMouseClick ) {
+ d->ignoreNextMouseClick = FALSE;
+ return;
+ }
+
+ QRect arrowRect = style().querySubControlMetrics( QStyle::CC_ComboBox, this,
+ QStyle::SC_ComboBoxArrow);
+ arrowRect = QStyle::visualRect(arrowRect, this);
+
+ // Correction for motif style, where arrow is smaller
+ // and thus has a rect that doesn't fit the button.
+ arrowRect.setHeight( QMAX( height() - (2 * arrowRect.y()), arrowRect.height() ) );
+
+ if ( arrowRect.contains( e->pos() ) ) {
+ popup();
+ repaint( FALSE );
+ }
+}
+
+
+void K3bFileTreeComboBox::keyPressEvent( QKeyEvent* e )
+{
+ if( e->key() == Qt::Key_Escape ) {
+ popdown();
+ }
+ KComboBox::keyPressEvent(e);
+}
+
+
+void K3bFileTreeComboBox::paintEvent( QPaintEvent* )
+{
+ // a lot of code from qcombobox.cpp
+
+ // we only need this since there is no way to change the status of the arrow-button
+
+ QPainter p( this );
+ const QColorGroup & g = colorGroup();
+ p.setPen(g.text());
+
+ QStyle::SFlags flags = QStyle::Style_Default;
+ if (isEnabled())
+ flags |= QStyle::Style_Enabled;
+ if (hasFocus())
+ flags |= QStyle::Style_HasFocus;
+
+ if ( width() < 5 || height() < 5 ) {
+ qDrawShadePanel( &p, rect(), g, FALSE, 2,
+ &g.brush( QColorGroup::Button ) );
+ return;
+ }
+
+ // bool reverse = QApplication::reverseLayout();
+
+ style().drawComplexControl( QStyle::CC_ComboBox, &p, this, rect(), g,
+ flags, QStyle::SC_All,
+ (d->poppedUp ?
+ QStyle::SC_ComboBoxArrow :
+ QStyle::SC_None ));
+
+ QRect re = style().querySubControlMetrics( QStyle::CC_ComboBox, this,
+ QStyle::SC_ComboBoxEditField );
+ re = QStyle::visualRect(re, this);
+ p.setClipRect( re );
+
+// QListBoxItem * item = listBox()->item( 0 );
+// if ( item ) {
+// // we calculate the QListBoxTexts height (ignoring strut)
+// int itemh = d->listBox()->fontMetrics().lineSpacing() + 2;
+// p.translate( re.x(), re.y() + (re.height() - itemh)/2 );
+// item->paint( &p );
+// }
+// } else if ( d->listBox() && d->listBox()->item( 0 ) ) {
+ p.setClipping( FALSE );
+ QListBoxItem * item = listBox()->item( 0 );
+ const QPixmap *pix = item->pixmap();
+ if ( pix ) {
+ p.fillRect( re.x(), re.y(), pix->width() + 4, re.height(),
+ colorGroup().brush( QColorGroup::Base ) );
+ p.drawPixmap( re.x() + 2, re.y() +
+ ( re.height() - pix->height() ) / 2, *pix );
+ }
+// }
+ p.setClipping( FALSE );
+}
+
+
+#include "k3bfiletreecombobox.moc"
+
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