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stylable knobs

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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@986 0778d3d1-df1d-0410-868b-ea421aaaa00d
This commit is contained in:
Paul Giblock
2008-05-18 14:23:41 +00:00
parent 02da5df799
commit 048ffd690f
3 changed files with 210 additions and 15 deletions
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8
ChangeLog
View File

@@ -1,3 +1,10 @@
2008-05-18 Paul Giblock <drfaygo/at/gmail/dot/com>
* src/gui/widgets/knob.cpp:
* include/knob.h:
First version of stylable knobs. Perhaps can be overlayed with current
knobs to add line coloring/width in other places around the GUI.
2008-05-18 Tobias Doerffel <tobydox/at/users/dot/sourceforge/dot/net>
* plugins/stk/mallets/mallets.cpp:
@@ -58,6 +65,7 @@
protect individual buffers of FX-channels from being processed by more
than one thread
>>>>>>> .r985
2008-05-17 Paul Giblock <drfaygo/at/gmail/dot/com>
* plugins/stereo_matrix/stereomatrix_controls.cpp:

39
include/knob.h
View File

@@ -42,7 +42,7 @@ class textFloat;
enum knobTypes
{
knobDark_28, knobBright_26, knobSmall_17, knobGreen_17
knobDark_28, knobBright_26, knobSmall_17, knobGreen_17, knobStyled
} ;
@@ -50,6 +50,18 @@ enum knobTypes
class knob : public QWidget, public floatModelView
{
Q_OBJECT
Q_PROPERTY(float innerRadius READ innerRadius WRITE setInnerRadius)
Q_PROPERTY(float outerRadius READ outerRadius WRITE setOuterRadius)
Q_PROPERTY(float centerPointX READ centerPointX WRITE setCenterPointX)
Q_PROPERTY(float centerPointY READ centerPointY WRITE setCenterPointY)
Q_PROPERTY(float lineWidth READ lineWidth WRITE setLineWidth)
// Unfortunately, the gradient syntax doesn't create our gradient correctly
// so we need to do this:
Q_PROPERTY(QColor outerColor READ outerColor WRITE setOuterColor)
public:
knob( int _knob_num, QWidget * _parent, const QString & _name );
virtual ~knob();
@@ -61,6 +73,24 @@ public:
void setTotalAngle( float _angle );
// Begin styled knob accessors
float innerRadius( void ) const;
void setInnerRadius( float _r );
float outerRadius( void ) const;
void setOuterRadius( float _r );
QPointF centerPoint( void ) const;
float centerPointX( void ) const;
void setCenterPointX( float _c );
float centerPointY( void ) const;
void setCenterPointY( float _c );
float lineWidth( void ) const;
void setLineWidth( float _w );
QColor outerColor( void ) const;
void setOuterColor( const QColor & _c );
public slots:
void reset( void );
@@ -91,6 +121,13 @@ protected:
QString m_hintTextBeforeValue;
QString m_hintTextAfterValue;
// Styled knob stuff, could break out
QPointF m_centerPoint;
float m_innerRadius;
float m_outerRadius;
float m_lineWidth;
QColor * m_outerColor;
virtual void contextMenuEvent( QContextMenuEvent * _me );
virtual void dragEnterEvent( QDragEnterEvent * _dee );
virtual void dropEvent( QDropEvent * _de );

178
src/gui/widgets/knob.cpp
View File

@@ -38,12 +38,12 @@
#include <QtGui/QPainter>
#include <QtGui/QPalette>
#ifndef __USE_XOPEN
#define __USE_XOPEN
#endif
#include <math.h>
#include "automatable_model_templates.h"
#include "caption_menu.h"
#include "config_mgr.h"
@@ -71,6 +71,8 @@ knob::knob( int _knob_num, QWidget * _parent, const QString & _name ) :
m_hintTextBeforeValue( "" ),
m_hintTextAfterValue( "" ),
m_knobNum( _knob_num ),
m_knobPixmap( NULL ),
m_outerColor( NULL ),
m_label( "" )
{
if( s_textFloat == NULL )
@@ -81,11 +83,16 @@ knob::knob( int _knob_num, QWidget * _parent, const QString & _name ) :
setAcceptDrops( TRUE );
setAccessibleName( _name );
m_knobPixmap = new QPixmap( embed::getIconPixmap( QString( "knob0" +
QString::number( m_knobNum + 1 ) ).toAscii().constData() ) );
if( m_knobNum != knobStyled ) {
m_knobPixmap = new QPixmap( embed::getIconPixmap( QString( "knob0" +
QString::number( m_knobNum + 1 ) ).toAscii().constData() ) );
setFixedSize( m_knobPixmap->width(), m_knobPixmap->height() );
setFixedSize( m_knobPixmap->width(), m_knobPixmap->height() );
}
setTotalAngle( 270.0f );
setInnerRadius( 1.0f );
setOuterRadius( 10.0f );
doConnections();
}
@@ -94,7 +101,10 @@ knob::knob( int _knob_num, QWidget * _parent, const QString & _name ) :
knob::~knob()
{
delete m_knobPixmap;
if( m_knobPixmap )
{
delete m_knobPixmap;
}
}
@@ -113,10 +123,13 @@ void knob::setHintText( const QString & _txt_before,
void knob::setLabel( const QString & _txt )
{
m_label = _txt;
setFixedSize( tMax<int>( m_knobPixmap->width(),
QFontMetrics( pointSize<6>( font()
) ).width( m_label ) ),
m_knobPixmap->height() + 10 );
if( m_knobPixmap )
{
setFixedSize( tMax<int>( m_knobPixmap->width(),
QFontMetrics( pointSize<6>( font()
) ).width( m_label ) ),
m_knobPixmap->height() + 10 );
}
update();
}
@@ -138,6 +151,114 @@ void knob::setTotalAngle( float _angle )
}
float knob::innerRadius( void ) const
{
return m_innerRadius;
}
void knob::setInnerRadius( float _r )
{
m_innerRadius = _r;
}
float knob::outerRadius( void ) const
{
return m_outerRadius;
}
void knob::setOuterRadius( float _r )
{
m_outerRadius = _r;
}
QPointF knob::centerPoint( void ) const
{
return m_centerPoint;
}
float knob::centerPointX( void ) const
{
return m_centerPoint.x();
}
void knob::setCenterPointX( float _c )
{
m_centerPoint.setX( _c );
}
float knob::centerPointY( void ) const
{
return m_centerPoint.y();
}
void knob::setCenterPointY( float _c )
{
m_centerPoint.setY( _c );
}
float knob::lineWidth( void ) const
{
return m_lineWidth;
}
void knob::setLineWidth( float _w )
{
m_lineWidth = _w;
}
QColor knob::outerColor( void ) const
{
if( m_outerColor )
{
return *m_outerColor;
}
else
{
return QColor();
}
}
void knob::setOuterColor( const QColor & _c )
{
if( m_outerColor )
{
*m_outerColor = _c;
}
else
{
m_outerColor = new QColor( _c );
}
}
QLineF knob::calculateLine( const QPointF & _mid, float _radius, float _innerRadius ) const
{
float angle = 0.0f;
@@ -162,8 +283,37 @@ QLineF knob::calculateLine( const QPointF & _mid, float _radius, float _innerRad
void knob::drawKnob( QPainter * _p )
{
QPoint mid;
if( m_knobNum == knobStyled )
{
_p->setRenderHint( QPainter::Antialiasing );
// Perhaps this can move to setOuterRadius()
if( m_outerColor )
{
QRadialGradient gradient( centerPoint(), outerRadius() );
gradient.setColorAt(0.33, _p->pen().brush().color() );
gradient.setColorAt(1, *m_outerColor );
_p->setPen( QPen( gradient, lineWidth(), Qt::SolidLine, Qt::RoundCap ) );
}
else {
QPen pen = _p->pen();
pen.setWidth( lineWidth() );
pen.setCapStyle( Qt::RoundCap );
_p->setPen( pen );
}
_p->drawLine( calculateLine( centerPoint(), outerRadius(), innerRadius() ) );
return;
}
// Old-skool knobs
const float radius = m_knobPixmap->width() / 2.0f - 1;
QPoint mid = QPoint( width() / 2.0,
mid = QPoint( width() / 2.0,
m_knobPixmap->height() / 2.0f );
_p->drawPixmap( static_cast<int>(
@@ -357,7 +507,7 @@ void knob::mousePressEvent( QMouseEvent * _me )
model()->value() ) +
m_hintTextAfterValue );
s_textFloat->moveGlobal( this,
QPoint( m_knobPixmap->width() + 2, 0 ) );
QPoint( width() + 2, 0 ) );
s_textFloat->show();
m_buttonPressed = TRUE;
}
@@ -475,7 +625,7 @@ void knob::wheelEvent( QWheelEvent * _we )
s_textFloat->setText( m_hintTextBeforeValue +
QString::number( model()->value() ) +
m_hintTextAfterValue );
s_textFloat->moveGlobal( this, QPoint( m_knobPixmap->width() + 2, 0 ) );
s_textFloat->moveGlobal( this, QPoint( width() + 2, 0 ) );
s_textFloat->setVisibilityTimeOut( 1000 );
emit sliderMoved( model()->value() );
@@ -519,7 +669,7 @@ void knob::reset( void )
s_textFloat->setText( m_hintTextBeforeValue +
QString::number( model()->value() ) +
m_hintTextAfterValue );
s_textFloat->moveGlobal( this, QPoint( m_knobPixmap->width() + 2, 0 ) );
s_textFloat->moveGlobal( this, QPoint( width() + 2, 0 ) );
s_textFloat->setVisibilityTimeOut( 1000 );
}
@@ -540,7 +690,7 @@ void knob::pasteValue( void )
s_textFloat->setText( m_hintTextBeforeValue +
QString::number( model()->value() ) +
m_hintTextAfterValue );
s_textFloat->moveGlobal( this, QPoint( m_knobPixmap->width() + 2, 0 ) );
s_textFloat->moveGlobal( this, QPoint( width() + 2, 0 ) );
s_textFloat->setVisibilityTimeOut( 1000 );
}