1 /*****************************************************************************
2 * input_manager.cpp : Manage an input and interact with its GUI elements
3 ****************************************************************************
4 * Copyright (C) 2006 the VideoLAN team
7 * Authors: Clément Stenac <zorglub@videolan.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
25 #include "util/input_slider.hpp"
27 #include <QPaintEvent>
32 InputSlider::InputSlider( QWidget *_parent ) : DirectSlider( _parent )
34 InputSlider::InputSlider( Qt::Horizontal, _parent );
37 InputSlider::InputSlider( Qt::Orientation q,QWidget *_parent ) :
38 DirectSlider( q, _parent )
42 setMouseTracking(true);
47 CONNECT( this, valueChanged(int), this, userDrag( int ) );
50 void InputSlider::setPosition( float pos, int a, int b )
57 setValue( (int)(pos * 1000.0 ) );
62 void InputSlider::userDrag( int new_value )
64 float f_pos = (float)(new_value)/1000.0;
67 emit sliderDragged( f_pos );
71 void InputSlider::mouseMoveEvent(QMouseEvent *event)
73 char psz_length[MSTRTIME_MAX_SIZE];
74 secstotimestr( psz_length, ( event->x() * inputLength) / size().width() );
75 setToolTip( psz_length );
78 #define WLENGTH 90 // px
79 #define WHEIGHT 25 // px
80 #define SOUNDMIN 0 // %
81 #define SOUNDMAX 200 // % OR 400 ?
83 SoundSlider::SoundSlider( QWidget *_parent, int _i_step, bool b_hard )
84 : QAbstractSlider( _parent )
89 f_step = ( _i_step * 100 ) / AOUT_VOLUME_MAX ;
90 setRange( SOUNDMIN, b_hard ? (2 * SOUNDMAX) : SOUNDMAX );
92 pixOutside = QPixmap( ":/pixmaps/volume-slider-outside.png" );
94 const QPixmap temp( ":/pixmaps/volume-slider-inside.png" );
95 const QBitmap mask( temp.createHeuristicMask() );
97 setMinimumSize( pixOutside.size() );
99 pixGradient = QPixmap( mask.size() );
101 QLinearGradient gradient( paddingL, 4, WLENGTH + paddingL , 4 );
102 gradient.setColorAt( 0.0, Qt::white );
103 gradient.setColorAt( 0.2, QColor( 20, 226, 20 ) );
104 gradient.setColorAt( 0.5, QColor( 255, 176, 15 ) );
105 gradient.setColorAt( 1.0, QColor( 235, 30, 20 ) );
107 QPainter painter( &pixGradient );
108 painter.setPen( Qt::NoPen );
109 painter.setBrush( gradient );
110 painter.drawRect( pixGradient.rect() );
113 pixGradient.setMask( mask );
116 void SoundSlider::wheelEvent( QWheelEvent *event )
118 int newvalue = value() + event->delta() / ( 8 * 15 ) * f_step;
119 setValue( __MIN( __MAX( minimum(), newvalue ), maximum() ) );
121 emit sliderReleased();
124 void SoundSlider::mousePressEvent( QMouseEvent *event )
126 if( event->button() != Qt::RightButton )
128 /* We enter the sliding mode */
130 i_oldvalue = value();
131 emit sliderPressed();
132 changeValue( event->x() - paddingL );
136 void SoundSlider::mouseReleaseEvent( QMouseEvent *event )
138 if( event->button() != Qt::RightButton )
140 if( !b_outside && value() != i_oldvalue )
142 emit sliderReleased();
150 void SoundSlider::mouseMoveEvent( QMouseEvent *event )
154 QRect rect( paddingL - 15, -1,
155 WLENGTH + 15 * 2, WHEIGHT + 4 );
156 if( !rect.contains( event->pos() ) )
157 { /* We are outside */
159 setValue( i_oldvalue );
163 { /* We are inside */
165 changeValue( event->x() - paddingL );
166 emit sliderMoved( value() );
173 void SoundSlider::changeValue( int x )
175 setValue( x * maximum() / WLENGTH );
178 void SoundSlider::paintEvent(QPaintEvent *e)
180 QPainter painter( this );
181 const int offset = int(
182 double( WLENGTH * value() ) /
183 double( maximum() ) ) + paddingL;
185 const QRectF boundsG( 0, 0, offset , pixGradient.height() );
186 painter.drawPixmap( boundsG, pixGradient, boundsG );
188 const QRectF boundsO( 0, 0, pixOutside.width(), pixOutside.height() );
189 painter.drawPixmap( boundsO, pixOutside, boundsO );