apps/konqueror/src/konqframestatusbar.cpp

   1 /*  This file is part of the KDE project
   2     Copyright (C) 1998, 1999 Michael Reiher <michael.reiher@gmx.de>
   3     Copyright 2007 David Faure <faure@kde.org>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18 */
  19
  20 #include "konqframestatusbar.h"
  21 #include <kdebug.h>
  22 #include "konqframe.h"
  23 #include "konqview.h"
  24 #include <kiconloader.h>
  25 #include <QCheckBox>
  26 #include <QPainter>
  27 #include <QLabel>
  28 #include <QMenu>
  29 #include <QProgressBar>
  30 #include <ksqueezedtextlabel.h>
  31 #include <klocale.h>
  32 #include <kactioncollection.h>
  33
  34 /**
  35  * A CheckBox with a special paintEvent(). It looks like the
  36  * unchecked radiobutton in b2k style if unchecked and contains a little
  37  * anchor if checked.
  38  */
  39 class KonqCheckBox : public QCheckBox
  40 {
  41     //Q_OBJECT // for classname. not used, and needs a moc
  42 public:
  43     explicit KonqCheckBox(QWidget *parent=0)
  44       : QCheckBox( parent ) {}
  45 protected:
  46     void paintEvent( QPaintEvent * );
  47 };
  48
  49 #define DEFAULT_HEADER_HEIGHT 13
  50
  51 void KonqCheckBox::paintEvent( QPaintEvent * )
  52 {
  53     //static QPixmap indicator_anchor( UserIcon( "indicator_anchor" ) );
  54     static QPixmap indicator_connect( UserIcon( "indicator_connect" ) );
  55     static QPixmap indicator_noconnect( UserIcon( "indicator_noconnect" ) );
  56
  57    QPainter p(this);
  58
  59    if (isChecked() || isDown())
  60       p.drawPixmap(0,0,indicator_connect);
  61    else
  62       p.drawPixmap(0,0,indicator_noconnect);
  63 }
  64
  65 KonqFrameStatusBar::KonqFrameStatusBar( KonqFrame *_parent )
  66   : KStatusBar( _parent ),
  67     m_pParentKonqFrame( _parent )
  68 {
  69     setSizeGripEnabled( false );
  70
  71     m_led = new QLabel( this );
  72     m_led->setAlignment( Qt::AlignCenter );
  73     m_led->setSizePolicy(QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed ));
  74     addWidget( m_led, 0 ); // led (active view indicator)
  75     m_led->hide();
  76
  77     m_pStatusLabel = new KSqueezedTextLabel( this );
  78     m_pStatusLabel->setMinimumSize( 0, 0 );
  79     m_pStatusLabel->setSizePolicy(QSizePolicy( QSizePolicy::Ignored, QSizePolicy::Fixed ));
  80     m_pStatusLabel->installEventFilter(this);
  81     addWidget( m_pStatusLabel, 1 /*stretch*/ ); // status label
  82
  83     m_pLinkedViewCheckBox = new KonqCheckBox( this );
  84     m_pLinkedViewCheckBox->setObjectName( "m_pLinkedViewCheckBox" );
  85     m_pLinkedViewCheckBox->setFocusPolicy(Qt::NoFocus);
  86     m_pLinkedViewCheckBox->setSizePolicy(QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed ));
  87     m_pLinkedViewCheckBox->setWhatsThis( i18n("Checking this box on at least two views sets those views as 'linked'. "
  88                           "Then, when you change directories in one view, the other views "
  89                           "linked with it will automatically update to show the current directory. "
  90                           "This is especially useful with different types of views, such as a "
  91                           "directory tree with an icon view or detailed view, and possibly a "
  92                           "terminal emulator window." ) );
  93     addPermanentWidget( m_pLinkedViewCheckBox, 0 );
  94     connect( m_pLinkedViewCheckBox, SIGNAL(toggled(bool)),
  95             this, SIGNAL(linkedViewClicked(bool)) );
  96
  97     m_progressBar = new QProgressBar( this );
  98     // Minimum width of QProgressBar::sizeHint depends on PM_ProgressBarChunkWidth which doesn't make sense;
  99     // we don't want chunking but we want a reasonably-sized progressbar :)
 100     m_progressBar->setMinimumWidth(150);
 101     m_progressBar->setMaximumHeight(fontMetrics().height());
 102     m_progressBar->hide();
 103     addPermanentWidget( m_progressBar, 0 );
 104
 105     fontChange(QFont());
 106     installEventFilter( this );
 107 }
 108
 109 KonqFrameStatusBar::~KonqFrameStatusBar()
 110 {
 111 }
 112
 113 void KonqFrameStatusBar::fontChange(const QFont & /* oldFont */)
 114 {
 115     int h = fontMetrics().height();
 116     if ( h < DEFAULT_HEADER_HEIGHT ) h = DEFAULT_HEADER_HEIGHT;
 117     m_led->setFixedHeight( h + 2 );
 118     m_progressBar->setFixedHeight( h + 2 );
 119     // This one is important. Otherwise richtext messages make it grow in height.
 120     m_pStatusLabel->setFixedHeight( h + 2 );
 121
 122 }
 123
 124 // I don't think this code _ever_ gets called!
 125 // I don't want to remove it, though.  :-)
 126 void KonqFrameStatusBar::mousePressEvent( QMouseEvent* event )
 127 {
 128    QWidget::mousePressEvent( event );
 129    if ( !m_pParentKonqFrame->childView()->isPassiveMode() )
 130    {
 131       emit clicked();
 132       update();
 133    }
 134
 135    //Blocks menu of custom status bar entries
 136    //if (event->button()==RightButton)
 137    //   splitFrameMenu();
 138 }
 139
 140 void KonqFrameStatusBar::splitFrameMenu()
 141 {
 142    KonqMainWindow * mw = m_pParentKonqFrame->childView()->mainWindow();
 143
 144    // We have to ship the remove view action ourselves,
 145    // since this may not be the active view (passive view)
 146    KAction actRemoveView(KIcon("view-close"), i18n("Close View"), 0);
 147    actRemoveView.setObjectName("removethisview");
 148    connect(&actRemoveView, SIGNAL(triggered(bool)), m_pParentKonqFrame, SLOT(slotRemoveView()));
 149    actRemoveView.setEnabled( mw->mainViewsCount() > 1 || m_pParentKonqFrame->childView()->isToggleView() || m_pParentKonqFrame->childView()->isPassiveMode() );
 150
 151    // For the rest, we borrow them from the main window
 152    // ###### might be not right for passive views !
 153    KActionCollection *actionColl = mw->actionCollection();
 154
 155    QMenu menu;
 156
 157    menu.addAction( actionColl->action( "splitviewh" ) );
 158    menu.addAction( actionColl->action( "splitviewv" ) );
 159    menu.addSeparator();
 160    menu.addAction( actionColl->action( "lock" ) );
 161    menu.addAction( &actRemoveView );
 162
 163    menu.exec(QCursor::pos());
 164 }
 165
 166 bool KonqFrameStatusBar::eventFilter(QObject* o, QEvent *e)
 167 {
 168    if (o == m_pStatusLabel && e->type()==QEvent::MouseButtonPress)
 169    {
 170       emit clicked();
 171       update();
 172       if ( static_cast<QMouseEvent *>(e)->button() == Qt::RightButton)
 173          splitFrameMenu();
 174       return true;
 175    }
 176    else if ( o == this && e->type() == QEvent::ApplicationPaletteChange )
 177    {
 178       //unsetPalette();
 179       setPalette(QPalette());
 180       updateActiveStatus();
 181       return true;
 182    }
 183
 184    return KStatusBar::eventFilter(o, e);
 185 }
 186
 187 void KonqFrameStatusBar::message( const QString &msg )
 188 {
 189     // We don't use the message()/clear() mechanism of QStatusBar because
 190     // it really looks ugly (the label border goes away, the active-view indicator
 191     // is hidden...)
 192     QString saveMsg = m_savedMessage;
 193     slotDisplayStatusText( msg );
 194     m_savedMessage = saveMsg;
 195 }
 196
 197 void KonqFrameStatusBar::slotDisplayStatusText(const QString& text)
 198 {
 199     //kDebug(1202) << text;
 200     m_pStatusLabel->setText(text);
 201     m_savedMessage = text;
 202 }
 203
 204 // ### TODO: was also used in kde3 for the signals from kactioncollection...
 205 void KonqFrameStatusBar::slotClear()
 206 {
 207     slotDisplayStatusText( m_savedMessage );
 208 }
 209
 210 void KonqFrameStatusBar::slotLoadingProgress( int percent )
 211 {
 212     if (percent == -1 || percent == 100) { // hide on error and on success
 213         m_progressBar->hide();
 214     } else {
 215         m_progressBar->show();
 216     }
 217
 218     m_progressBar->setValue(percent);
 219 }
 220
 221 void KonqFrameStatusBar::slotSpeedProgress( int bytesPerSecond )
 222 {
 223   QString sizeStr;
 224
 225   if ( bytesPerSecond > 0 )
 226     sizeStr = i18n( "%1/s", KIO::convertSize( bytesPerSecond ) );
 227   else
 228     sizeStr = i18n( "Stalled" );
 229
 230   slotDisplayStatusText( sizeStr ); // let's share the same label...
 231 }
 232
 233 void KonqFrameStatusBar::slotConnectToNewView(KonqView *, KParts::ReadOnlyPart *,KParts::ReadOnlyPart *newOne)
 234 {
 235    if (newOne)
 236       connect(newOne,SIGNAL(setStatusBarText(const QString &)),this,SLOT(slotDisplayStatusText(const QString&)));
 237    slotDisplayStatusText( QString() );
 238 }
 239
 240 void KonqFrameStatusBar::showActiveViewIndicator( bool b )
 241 {
 242     m_led->setVisible( b );
 243     updateActiveStatus();
 244 }
 245
 246 void KonqFrameStatusBar::showLinkedViewIndicator( bool b )
 247 {
 248     m_pLinkedViewCheckBox->setVisible( b );
 249 }
 250
 251 void KonqFrameStatusBar::setLinkedView( bool b )
 252 {
 253     m_pLinkedViewCheckBox->blockSignals( true );
 254     m_pLinkedViewCheckBox->setChecked( b );
 255     m_pLinkedViewCheckBox->blockSignals( false );
 256 }
 257
 258 void KonqFrameStatusBar::updateActiveStatus()
 259 {
 260     if ( m_led->isHidden() )
 261     {
 262         //unsetPalette();
 263         setPalette(QPalette());
 264         return;
 265     }
 266
 267     bool hasFocus = m_pParentKonqFrame->isActivePart();
 268
 269     const QColor midLight = palette().midlight().color();
 270     const QColor Mid = palette().mid().color();
 271     QPalette palette;
 272     palette.setColor(backgroundRole(), hasFocus ? midLight : Mid);
 273     setPalette(palette);
 274
 275     static QPixmap indicator_viewactive( UserIcon( "indicator_viewactive" ) );
 276     static QPixmap indicator_empty( UserIcon( "indicator_empty" ) );
 277     m_led->setPixmap( hasFocus ? indicator_viewactive : indicator_empty );
 278 }
 279
 280 #include "konqframestatusbar.moc"