kmix/dialogviewconfiguration.cpp

   1 /*
   2  * KMix -- KDE's full featured mini mixer
   3  *
   4  *
   5  * Copyright (C) 1996-2004 Christian Esken <esken@kde.org>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Library General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Library General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Library General Public
  18  * License along with this program; if not, write to the Free
  19  * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  20  */
  21
  22 #include <QCheckBox>
  23 #include <QLabel>
  24 #include <QScrollArea>
  25 #include <QVBoxLayout>
  26 #include <QGridLayout>
  27
  28 #include <kdebug.h>
  29 #include <kdialog.h>
  30 #include <klocale.h>
  31 #include <kvbox.h>
  32
  33 #include "dialogviewconfiguration.h"
  34 #include "mixdevicewidget.h"
  35 #include "mixdevice.h"
  36
  37
  38 DialogViewConfiguration::DialogViewConfiguration( QWidget*, ViewBase& view)
  39     : KDialog(  0),
  40       _view(view)
  41 {
  42    setCaption( i18n( "Configure" ) );
  43    setButtons( Ok|Cancel );
  44    setDefaultButton( Ok );
  45    QList<QWidget *> &mdws = view._mdws;
  46    QWidget * frame = new QWidget( this );
  47    frame->setSizePolicy(QSizePolicy::MinimumExpanding,QSizePolicy::MinimumExpanding);
  48
  49    setMainWidget( frame );
  50
  51    // The _layout will hold two items: The title and the scrollarea
  52    _layout = new QVBoxLayout(frame );
  53
  54    // --- HEADER ---
  55    //    kDebug(67100) << "DialogViewConfiguration::DialogViewConfiguration add header" << "\n";
  56    qlb = new QLabel( i18n("Configuration of the channels."), frame );
  57    _layout->addWidget(qlb);
  58
  59    QScrollArea* scrollArea = new QScrollArea(frame);
  60    scrollArea->setWidgetResizable(true); // avoid unnecesary scrollbars
  61    scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
  62    _layout->addSpacing(KDialog::spacingHint());
  63    _layout->addWidget(scrollArea);
  64
  65    vboxForScrollView = new QWidget();
  66    vboxForScrollView->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
  67    QGridLayout* grid = new QGridLayout(vboxForScrollView);
  68    grid->setHorizontalSpacing(KDialog::spacingHint());
  69    grid->setVerticalSpacing(0);
  70    scrollArea->setWidget(vboxForScrollView);
  71
  72    qlb = new QLabel( i18n("Show/Hide") );
  73    grid->addWidget(qlb,0,0);
  74    qlb = new QLabel( i18n("Split"), vboxForScrollView );
  75    grid->addWidget(qlb,0,1);
  76    /*
  77    qlb = new QLabel( i18n("Limit"), vboxForScrollView );
  78    grid->addWidget(qlb,0,2);
  79    */
  80    int i;
  81     // --- CONTROLS IN THE GRID ---
  82    QPalette::ColorRole bgRole;
  83    for ( i=0; i<mdws.count(); ++i ) {
  84        if ( i%2 == 0) bgRole = QPalette::Base; else bgRole = QPalette::AlternateBase;
  85       QWidget *qw = mdws[i];
  86       if ( qw->inherits("MixDeviceWidget") ) {
  87             MixDeviceWidget *mdw = static_cast<MixDeviceWidget*>(qw);
  88             MixDevice *md = mdw->mixDevice();
  89             QString mdName = md->readableName();
  90             mdName.replace('&', "&&"); // Quoting the '&' needed, to prevent QCheckBox creating an accelerator
  91             QCheckBox* cb = new QCheckBox( mdName, vboxForScrollView ); // enable/disable
  92             cb->setBackgroundRole(bgRole);
  93             cb->setAutoFillBackground(true);
  94             _qEnabledCB.append(cb);
  95             cb->setChecked( mdw->isVisible() );
  96             grid->addWidget(cb,1+i,0);
  97
  98             if ( ! md->isEnum() && ( ( md->playbackVolume().count() > 1) || ( md->captureVolume().count() > 1) ) ) {
  99                 cb = new QCheckBox( "", vboxForScrollView ); // split
 100                 cb->setBackgroundRole(bgRole);
 101                 cb->setAutoFillBackground(true);
 102                 _qSplitCB.append(cb);
 103                 cb->setChecked( ! mdw->isStereoLinked() );
 104                 grid->addWidget(cb,1+i,1);
 105             }
 106             else {
 107                 _qSplitCB.append(0);
 108             }
 109             /*
 110             if ( ! md->isEnum() && ( md->playbackVolume().count() + md->captureVolume().count() >0 ) ) {
 111                 cb = new QCheckBox( "", vboxForScrollView ); // limit
 112                 cb->setBackgroundRole(bgRole);
 113                 cb->setAutoFillBackground(true);
 114                 _qLimitCB.append(cb);
 115                 grid->addWidget(cb,1+i,2);
 116             }
 117             else {
 118             */
 119                 _qLimitCB.append(0);
 120             /*}*/
 121       }
 122    } // for all MDW's
 123
 124    scrollArea->updateGeometry();
 125    updateGeometry();
 126    connect( this, SIGNAL(okClicked())   , this, SLOT(apply()) );
 127 }
 128
 129 DialogViewConfiguration::~DialogViewConfiguration()
 130 {
 131 }
 132
 133 void DialogViewConfiguration::apply()
 134 {
 135     QList<QWidget *> &mdws = _view._mdws;
 136
 137     // --- 2-Step Apply ---
 138
 139     // --- Step 1: Show and Hide Widgets ---
 140     for ( int i=0; i<mdws.count(); ++i ) {
 141         QWidget *qw = mdws[i];
 142         MixDeviceWidget *mdw;
 143
 144         if ( qw->inherits("MixDeviceWidget") ) {
 145             mdw = static_cast<MixDeviceWidget*>(qw);
 146         }
 147         else {
 148             continue;
 149         }
 150
 151         QCheckBox *cb = _qEnabledCB[i];
 152         if ( cb != 0 ) {
 153             mdw->setVisible( cb->isChecked());
 154         } // show-hide
 155
 156         cb = _qSplitCB[i];
 157         if ( cb != 0 ) {
 158             mdw->setStereoLinked( ! cb->isChecked() );
 159         } // split
 160
 161    } // for all MDW's
 162
 163    // --- Step 2: Tell the view, that it has changed (probably it needs some "polishing" ---
 164    _view.configurationUpdate();
 165 }
 166
 167
 168 QSize DialogViewConfiguration::sizeHint() const {
 169     QSize size = vboxForScrollView->sizeHint();
 170     // The +50 is a workaround, because KDialog does not handle our case correctly (using a QScrollarea)
 171     size.rwidth() += 50;
 172     size.rheight() += KDialog::spacingHint();
 173     size.rheight() += qlb->height();
 174     return size;
 175 }
 176
 177 #include "dialogviewconfiguration.moc"
 178