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/*
* KMix -- KDE's full featured mini mixer
*
*
* Copyright (C) 1996-2004 Christian Esken <esken@kde.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "viewbase.h"
// QT
#include <qlabel.h>
#include <qcursor.h>
// KDE
#include <kaction.h>
#include <kpopupmenu.h>
#include <klocale.h>
#include <kiconloader.h>
// KMix
#include "dialogviewconfiguration.h"
#include "mixdevicewidget.h"
#include "mixer.h"
ViewBase::ViewBase(QWidget* parent, const char* name, const QString & caption, Mixer* mixer, WFlags f, ViewBase::ViewFlags vflags)
: QWidget(parent, name, f), _vflags(vflags), _caption(caption)
{
_mixer = mixer;
_mixSet = new MixSet();
/* Can't use the following construct:
setMixSet( & mixer->getMixSet());
C++ does not use overloaded methods like getMixSet() as long as the constructor has not completed :-(((
*/
_actions = new KActionCollection( this );
// Plug in the "showMenubar" action, if the caller wants it. Typically this is only neccesary for views in the KMix main window.
if ( vflags & ViewBase::HasMenuBar ) {
KToggleAction *m = static_cast<KToggleAction*>(KStdAction::showMenubar( this, SLOT(toggleMenuBarSlot()), _actions ));
if ( vflags & ViewBase::MenuBarVisible ) {
m->setChecked(true);
}
else {
m->setChecked(false);
}
}
new KAction(i18n("&Channels"), 0, this, SLOT(configureView()), _actions, "toggle_channels");
connect ( _mixer, SIGNAL(newVolumeLevels()), this, SLOT(refreshVolumeLevels()) );
}
ViewBase::~ViewBase() {
delete _mixSet;
}
void ViewBase::init() {
const MixSet& mixset = _mixer->getMixSet();
setMixSet( const_cast<MixSet*>(&mixset)); // const_cast<>
}
void ViewBase::setMixSet(MixSet *)
{
// do nothing. Subclasses can do something if they feel like it
}
/**
* Dummy implementation for add().
*/
QWidget* ViewBase::add(MixDevice* mdw) {
QWidget* label = new QLabel( mdw->name(), this, mdw->name().latin1());
label->move(0, mdw->num()*12);
return label;
}
void ViewBase::configurationUpdate() {
}
/**
* Create all widgets.
* This is a loop over all supported devices of the corresponding view.
* On each device add() is called - the derived class must implement add() for creating and placing
* the real MixDeviceWidget.
* The added MixDeviceWidget is appended to the _mdws list.
*/
void ViewBase::createDeviceWidgets()
{
// create devices
MixDevice *mixDevice;
for ( mixDevice = _mixSet->first(); mixDevice != 0; mixDevice = _mixSet->next())
{
QWidget* mdw = add(mixDevice);
_mdws.append(mdw);
}
// allow view to "polish" itself
constructionFinished();
}
// ---------- Popup stuff START ---------------------
void ViewBase::mousePressEvent( QMouseEvent *e )
{
if ( e->button()==RightButton )
showContextMenu();
}
/**
* Return a popup menu. This contains basic entries.
* More can be added by the caller.
*/
KPopupMenu* ViewBase::getPopup()
{
popupReset();
return _popMenu;
}
void ViewBase::popupReset()
{
KAction *a;
_popMenu = new KPopupMenu( this );
_popMenu->insertTitle( SmallIcon( "kmix" ), i18n("Device Settings") );
a = _actions->action( "toggle_channels" );
if ( a ) a->plug( _popMenu );
a = _actions->action( "options_show_menubar" );
if ( a ) a->plug( _popMenu );
}
/**
This will only get executed, when the user has removed all items from the view.
Don't remove this method, because then the user cannot get a menu for getting his
channels back
*/
void ViewBase::showContextMenu()
{
//kdDebug(67100) << "ViewBase::showContextMenu()" << endl;
popupReset();
QPoint pos = QCursor::pos();
_popMenu->popup( pos );
}
void ViewBase::refreshVolumeLevels()
{
// is virtual
}
Mixer* ViewBase::getMixer() {
return _mixer;
}
/**
* Open the View configuration dialog. The user can select which channels he wants
* to see and which not.
*/
void ViewBase::configureView() {
DialogViewConfiguration* dvc = new DialogViewConfiguration(0, *this);
dvc->show();
// !! The dialog is modal. Does it delete itself?
}
void ViewBase::toggleMenuBarSlot() {
//kdDebug(67100) << "ViewBase::toggleMenuBarSlot() start\n";
emit toggleMenuBar();
//kdDebug(67100) << "ViewBase::toggleMenuBarSlot() done\n";
}
// ---------- Popup stuff END ---------------------
#include "viewbase.moc"
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