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Theming of disabled knobs (#5549)

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Co-authored-by: Hyunjin Song <tteu.ingog@gmail.com>
Co-authored-by: Dominic Clark <mrdomclark@gmail.com>
This commit is contained in:
thmueller64
2020-10-30 21:52:32 +01:00
committed by GitHub
parent 69a35b58d3
commit 2d51eaef3d
4 changed files with 79 additions and 67 deletions
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110
src/gui/widgets/Knob.cpp
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@@ -22,6 +22,7 @@
*
*/
#include <memory>
#include <QApplication>
#include <QBitmap>
#include <QFontMetrics>
@@ -46,6 +47,7 @@
#include "MainWindow.h"
#include "ProjectJournal.h"
#include "Song.h"
#include "stdshims.h"
#include "StringPairDrag.h"
#include "TextFloat.h"
@@ -58,7 +60,6 @@ Knob::Knob( knobTypes _knob_num, QWidget * _parent, const QString & _name ) :
QWidget( _parent ),
FloatModelView( new FloatModel( 0, 0, 0, 1, NULL, _name, true ), this ),
m_label( "" ),
m_knobPixmap( NULL ),
m_volumeKnob( false ),
m_volumeRatio( 100.0, 0.0, 1000000.0 ),
m_buttonPressed( false ),
@@ -105,10 +106,16 @@ void Knob::initUi( const QString & _name )
case knobSmall_17:
case knobBright_26:
case knobDark_28:
setlineColor(QApplication::palette().color( QPalette::Active, QPalette::WindowText ));
m_lineActiveColor = QApplication::palette().color(QPalette::Active, QPalette::WindowText);
m_arcActiveColor = QColor(QApplication::palette().color(
QPalette::Active, QPalette::WindowText));
m_arcActiveColor.setAlpha(70);
break;
case knobVintage_32:
setlineColor(QApplication::palette().color( QPalette::Active, QPalette::Shadow ));
m_lineActiveColor = QApplication::palette().color(QPalette::Active, QPalette::Shadow);
m_arcActiveColor = QColor(QApplication::palette().color(
QPalette::Active, QPalette::Shadow));
m_arcActiveColor.setAlpha(70);
break;
default:
break;
@@ -144,8 +151,11 @@ void Knob::onKnobNumUpdated()
}
// If knobFilename is still empty here we should get the fallback pixmap of size 1x1
m_knobPixmap = new QPixmap( embed::getIconPixmap( knobFilename.toUtf8().constData() ) );
m_knobPixmap = make_unique<QPixmap>(QPixmap(embed::getIconPixmap(knobFilename.toUtf8().constData())));
if (!this->isEnabled())
{
convertPixmapToGrayScale(*m_knobPixmap.get());
}
setFixedSize( m_knobPixmap->width(), m_knobPixmap->height() );
}
}
@@ -153,17 +163,6 @@ void Knob::onKnobNumUpdated()
Knob::~Knob()
{
if( m_knobPixmap )
{
delete m_knobPixmap;
}
}
void Knob::setLabel( const QString & txt )
{
m_label = txt;
@@ -308,35 +307,6 @@ void Knob::setOuterColor( const QColor & c )
QColor Knob::lineColor() const
{
return m_lineColor;
}
void Knob::setlineColor( const QColor & c )
{
m_lineColor = c;
}
QColor Knob::arcColor() const
{
return m_arcColor;
}
void Knob::setarcColor( const QColor & c )
{
m_arcColor = c;
}
QColor Knob::textColor() const
{
return m_textColor;
@@ -383,6 +353,10 @@ bool Knob::updateAngle()
void Knob::drawKnob( QPainter * _p )
{
bool enabled = this->isEnabled();
QColor currentArcColor = enabled ? m_arcActiveColor : m_arcInactiveColor;
QColor currentLineColor = enabled ? m_lineActiveColor : m_lineInactiveColor;
if( updateAngle() == false && !m_cache.isNull() )
{
_p->drawImage( 0, 0, m_cache );
@@ -441,33 +415,24 @@ void Knob::drawKnob( QPainter * _p )
const int arcLineWidth = 2;
const int arcRectSize = m_knobPixmap->width() - arcLineWidth;
QColor col;
if( m_knobNum == knobVintage_32 )
{ col = QApplication::palette().color( QPalette::Active, QPalette::Shadow ); }
else
{ col = QApplication::palette().color( QPalette::Active, QPalette::WindowText ); }
col.setAlpha( 70 );
p.setPen( QPen( col, 2 ) );
p.setPen(QPen(currentArcColor, 2));
p.drawArc( mid.x() - arcRectSize/2, 1, arcRectSize, arcRectSize, 315*16, 16*m_totalAngle );
p.setPen(QPen(currentLineColor, 2));
switch( m_knobNum )
{
case knobSmall_17:
{
p.setPen( QPen( lineColor(), 2 ) );
p.drawLine( calculateLine( mid, radius-2 ) );
break;
}
case knobBright_26:
{
p.setPen( QPen( lineColor(), 2 ) );
p.drawLine( calculateLine( mid, radius-5 ) );
break;
}
case knobDark_28:
{
p.setPen( QPen( lineColor(), 2 ) );
const float rb = qMax<float>( ( radius - 10 ) / 3.0,
0.0 );
const float re = qMax<float>( ( radius - 4 ), 0.0 );
@@ -478,7 +443,6 @@ void Knob::drawKnob( QPainter * _p )
}
case knobVintage_32:
{
p.setPen( QPen( lineColor(), 2 ) );
p.drawLine( calculateLine( mid, radius-2, 2 ) );
break;
}
@@ -840,3 +804,35 @@ void Knob::doConnections()
this, SLOT( update() ) );
}
}
void Knob::changeEvent(QEvent * ev)
{
if (ev->type() == QEvent::EnabledChange)
{
onKnobNumUpdated();
if (!m_label.isEmpty())
{
setLabel(m_label);
}
m_cache = QImage();
update();
}
}
void convertPixmapToGrayScale(QPixmap& pixMap)
{
QImage temp = pixMap.toImage().convertToFormat(QImage::Format_ARGB32);
for (int i = 0; i < temp.height(); ++i)
{
for (int j = 0; j < temp.width(); ++j)
{
const auto pix = temp.pixelColor(i, j);
const auto gscale = 0.2126 * pix.redF() + 0.7152 * pix.greenF() + 0.0722 * pix.blueF();
const auto pixGray = QColor::fromRgbF(gscale, gscale, gscale, pix.alphaF());
temp.setPixelColor(i, j, pixGray);
}
}
pixMap.convertFromImage(temp);
}