Javier Serrano Polo
055a795cb3
git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@241 0778d3d1-df1d-0410-868b-ea421aaaa00d
357 lines
7.2 KiB
C++
357 lines
7.2 KiB
C++
#ifndef SINGLE_SOURCE_COMPILE
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/*
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* combobox.cpp - implementation of LMMS-combobox
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*
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* Copyright (c) 2006 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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*/
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#include "combobox.h"
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#include "templates.h"
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#include "embed.h"
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#include "gui_templates.h"
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#ifndef QT3
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#include <QtGui/QApplication>
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#include <QtGui/QCursor>
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#include <QtGui/QDesktopWidget>
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#include <QtGui/QLabel>
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#include <QtGui/QMouseEvent>
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#include <QtGui/QPainter>
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#include <QtGui/QPixmap>
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#else
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#include <qcursor.h>
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#include <qlabel.h>
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#include <qpainter.h>
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#include <qpixmap.h>
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#include <qimage.h>
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#include <qapplication.h>
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#endif
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QPixmap * comboBox::s_background = NULL;
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QPixmap * comboBox::s_arrow = NULL;
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const int CB_ARROW_BTN_WIDTH = 20;
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comboBox::comboBox( QWidget * _parent, const QString & _name, engine * _engine,
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track * _track ) :
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QWidget( _parent
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#ifndef QT4
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, _name.ascii()
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#endif
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),
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automatableObject<int>( _engine, _track ),
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m_menu( this ),
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m_pressed( FALSE )
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{
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if( s_background == NULL )
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{
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s_background = new QPixmap( embed::getIconPixmap(
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"combobox_bg" ) );
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}
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if( s_arrow == NULL )
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{
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s_arrow = new QPixmap( embed::getIconPixmap(
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"combobox_arrow" ) );
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}
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setFont( pointSize<8>( font() ) );
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m_menu.setFont( pointSize<8>( m_menu.font() ) );
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#ifndef QT3
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connect( &m_menu, SIGNAL( triggered( QAction * ) ),
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this, SLOT( setItem( QAction * ) ) );
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#else
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connect( &m_menu, SIGNAL( activated( int ) ),
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this, SLOT( setItem( int ) ) );
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#endif
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#ifdef QT3
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setBackgroundMode( NoBackground );
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#endif
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if( _track != NULL )
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{
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getAutomationPattern();
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}
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setInitValue( 0 );
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#ifdef QT4
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setAccessibleName( _name );
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#endif
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}
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comboBox::~comboBox()
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{
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}
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void comboBox::addItem( const QString & _item, const QPixmap & _pixmap )
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{
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QPixmap pm = _pixmap;
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if( pm.height() > 16 )
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{
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#ifndef QT3
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pm = pm.scaledToHeight( 16, Qt::SmoothTransformation );
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#else
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pm.convertFromImage( pm.convertToImage().smoothScale(
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pm.width(), 16,
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QImage::ScaleMin ) );
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#endif
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}
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m_items.push_back( qMakePair( _item, pm ) );
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m_menu.clear();
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for( vvector<item>::iterator it = m_items.begin();
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it != m_items.end(); ++it )
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{
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m_menu.addAction( ( *it ).second, ( *it ).first
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// when using Qt3, we pass item-index as id for using
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// it in setItem( int ) as index
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#ifdef QT3
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, it - m_items.begin()
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#endif
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);
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}
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setRange( 0, m_items.size() - 1 );
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}
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int comboBox::findText( const QString & _txt ) const
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{
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for( vvector<item>::const_iterator it = m_items.begin();
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it != m_items.end(); ++it )
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{
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if( ( *it ).first == _txt )
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{
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return( it - m_items.begin() );
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}
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}
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return( -1 );
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}
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void comboBox::setValue( const int _idx )
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{
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automatableObject<int>::setValue( _idx );
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/* m_value = tLimit<int>( _idx, 0, ( m_items.size() > 0 ) ?
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m_items.size() - 1 : 0 );*/
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emit( valueChanged( value() ) );
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emit( activated( ( m_items.size() > 0 ) ?
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m_items[value()].first : "" ) );
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update();
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}
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void comboBox::contextMenuEvent( QContextMenuEvent * _me )
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{
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if( nullTrack() || _me->x() <= width() - CB_ARROW_BTN_WIDTH )
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{
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QWidget::contextMenuEvent( _me );
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return;
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}
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QMenu contextMenu( this );
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#ifdef QT4
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contextMenu.setTitle( accessibleName() );
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#else
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QLabel * caption = new QLabel( "<font color=white><b>" +
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QString( accessibleName() ) + "</b></font>",
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this );
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caption->setPaletteBackgroundColor( QColor( 0, 0, 192 ) );
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caption->setAlignment( Qt::AlignCenter );
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contextMenu.addAction( caption );
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#endif
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contextMenu.addAction( embed::getIconPixmap( "automation" ),
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tr( "&Open in automation editor" ),
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getAutomationPattern(),
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SLOT( openInAutomationEditor() ) );
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contextMenu.exec( QCursor::pos() );
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}
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void comboBox::mousePressEvent( QMouseEvent * _me )
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{
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if( _me->x() > width() - CB_ARROW_BTN_WIDTH )
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{
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if( _me->button() == Qt::RightButton )
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{
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return;
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}
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m_pressed = TRUE;
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update();
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QPoint gpos = mapToGlobal( QPoint( 0, height() ) );
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if( gpos.y() + m_menu.sizeHint().height() <
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qApp->desktop()->height() )
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{
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m_menu.exec( gpos );
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}
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else
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{
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m_menu.exec( mapToGlobal( QPoint( width(), 0 ) ) );
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}
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m_pressed = FALSE;
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update();
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}
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else if( _me->button() == Qt::LeftButton )
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{
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setInitValue( value() + 1 );
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}
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else if( _me->button() == Qt::RightButton )
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{
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setInitValue( value() - 1 );
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}
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}
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void comboBox::paintEvent( QPaintEvent * _pe )
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{
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#ifndef QT3
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QPainter p( this );
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#else
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QPixmap draw_pm( rect().size() );
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QPainter p( &draw_pm, this );
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#endif
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p.fillRect( rect(), QColor( 0, 0, 0 ) );
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for( int x = 2; x < width() - 2; x += s_background->width() )
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{
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p.drawPixmap( x, 2, *s_background );
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}
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p.setPen( QColor( 0, 0, 0 ) );
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p.drawLine( width() - 2, 1, width() - 2, height() - 2 );
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// outer rect
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p.setPen( QColor( 64, 64, 64 ) );
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p.drawRect( 0, 0, width(), height() );
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// button-separator
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p.setPen( QColor( 64, 64, 64 ) );
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p.drawLine( width() - CB_ARROW_BTN_WIDTH - 1, 0, width() -
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CB_ARROW_BTN_WIDTH - 1, height() - 2 );
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p.setPen( QColor( 0, 0, 0 ) );
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p.drawLine( width() - CB_ARROW_BTN_WIDTH, 0, width() -
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CB_ARROW_BTN_WIDTH, height() - 2 );
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// brighter line at bottom/right
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p.setPen( QColor( 160, 160, 160 ) );
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p.drawLine( width() - 1, 0, width() - 1, height() - 1 );
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p.drawLine( 0, height() - 1, width() - 1, height() - 1 );
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const int dxy = ( m_pressed == TRUE ) ? 1 : 0;
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p.drawPixmap( width() - CB_ARROW_BTN_WIDTH + 4 + dxy, 4 + dxy,
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*s_arrow );
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if( m_items.size() > 0 )
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{
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p.setFont( font() );
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p.setClipRect( QRect( 5, 2, width() - CB_ARROW_BTN_WIDTH - 8,
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height() - 2 ) );
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const QPixmap & item_pm = m_items[value()].second;
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int tx = 4;
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if( item_pm.isNull() == FALSE )
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{
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p.drawPixmap( tx, 3, item_pm );
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tx += item_pm.width() + 2;
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}
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p.setPen( QColor( 64, 64, 64 ) );
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p.drawText( tx+1, p.fontMetrics().height()+1,
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m_items[value()].first );
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p.setPen( QColor( 224, 224, 224 ) );
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p.drawText( tx, p.fontMetrics().height(),
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m_items[value()].first );
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}
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#ifdef QT3
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// and blit all the drawn stuff on the screen...
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bitBlt( this, rect().topLeft(), &draw_pm );
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#endif
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}
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void comboBox::wheelEvent( QWheelEvent * _we )
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{
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setInitValue( value() + ( ( _we->delta() < 0 ) ? 1 : -1 ) );
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_we->accept();
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}
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#ifndef QT3
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void comboBox::setItem( QAction * _item )
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{
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setInitValue( findText( _item->text() ) );
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}
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void comboBox::setItem( int )
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{
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}
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#else
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void comboBox::setItem( QAction * )
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{
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}
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void comboBox::setItem( int _item )
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{
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setInitValue( _item );
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}
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#endif
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#include "combobox.moc"
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#endif
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