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add stroke sliders

This commit is contained in:
Vogel, Rick 2023-12-06 13:32:38 +01:00
parent f6dde3aa90
commit 8d74b08c08
3 changed files with 117 additions and 66 deletions
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156
playground/charts/ChartView.cpp
View File

@ -33,15 +33,9 @@ namespace
Q_PROPERTY( QColor selectedColor READ selectedColor NOTIFY selectedColorChanged )
using Inherited = QskSlider;
enum ColorMode
{
RGB,
Grayscale,
Alpha,
Count
};
public:
QSK_STATES( Grayscale, Alpha )
explicit LinearGradientSlider( QQuickItem* parent = nullptr );
explicit LinearGradientSlider( Qt::Orientation orientation, QQuickItem* parent = nullptr );
QColor selectedColor() const;
@ -51,9 +45,25 @@ namespace
{
if ( event->button() == Qt::RightButton )
{
m_mode = ( m_mode + 1 ) % Count;
setGradientHint( Groove, gradientForColorMode( m_mode ) );
Q_EMIT valueChanged( value() );
// RGB->GRAYSCALE->ALPHA
const auto a = skinStates().testFlag(Alpha);
const auto g = skinStates().testFlag(Grayscale);
if ( g )
{
setSkinStateFlag( Grayscale, false );
setSkinStateFlag( Alpha, true );
}
else if ( a )
{
setSkinStateFlag( Grayscale, false );
setSkinStateFlag( Alpha, false );
}
else
{
setSkinStateFlag( Grayscale, true );
setSkinStateFlag( Alpha, false );
}
}
else
{
@ -74,41 +84,18 @@ namespace
void selectedColorChanged();
private:
QskGradient gradientForColorMode( int mode )
{
QskGradient gradient;
gradient.setLinearDirection(orientation());
if ( mode == RGB )
QColor colorForPosition(const QskGradient& gradient, qreal ratio)
{
static const QVector< QskGradientStop > stops = {
{ 0.0000, QColor::fromRgb( 255, 0, 0 ) },
{ 0.1667, QColor::fromRgb( 255, 255, 0 ) },
{ 0.3333, QColor::fromRgb( 0, 255, 0 ) },
{ 0.5000, QColor::fromRgb( 0, 255, 255 ) },
{ 0.6667, QColor::fromRgb( 0, 0, 255 ) },
{ 0.8333, QColor::fromRgb( 255, 0, 255 ) },
{ 1.0000, QColor::fromRgb( 255, 0, 0 ) },
};
gradient.setStops(stops);
}
else
{
static const QVector< QskGradientStop > stops = {
{ 0.0000, Qt::black },
{ 1.0000, Qt::white },
};
gradient.setStops(stops);
return gradient.extracted( ratio, ratio ).startColor();
}
return gradient;
}
int m_mode = ColorMode::RGB;
QColor m_color;
};
QSK_STATE( LinearGradientSlider, Grayscale, QskAspect::FirstUserState << 0 )
QSK_STATE( LinearGradientSlider, Alpha, QskAspect::FirstUserState << 1 )
LinearGradientSlider::LinearGradientSlider( QQuickItem* parent )
: LinearGradientSlider( Qt::Horizontal, parent )
{
@ -117,27 +104,70 @@ namespace
LinearGradientSlider::LinearGradientSlider( Qt::Orientation orientation, QQuickItem* parent )
: Inherited( orientation, parent )
{
static const QskGradientStops stopsRGB = {
{ 0.0000, QColor::fromRgb( 255, 0, 0 ) },
{ 0.1667, QColor::fromRgb( 255, 255, 0 ) },
{ 0.3333, QColor::fromRgb( 0, 255, 0 ) },
{ 0.5000, QColor::fromRgb( 0, 255, 255 ) },
{ 0.6667, QColor::fromRgb( 0, 0, 255 ) },
{ 0.8333, QColor::fromRgb( 255, 0, 255 ) },
{ 1.0000, QColor::fromRgb( 255, 0, 0 ) },
};
setColor( Inherited::Fill, Qt::transparent );
setGradientHint( Inherited::Groove, gradientForColorMode(m_mode) );
setBoxBorderColorsHint( Inherited::Handle, Qt::white );
setBoxBorderMetricsHint( Inherited::Handle, 2 );
static const QskGradientStops stopsGrayscale = {
{ 0.0000, QColor::fromRgb( 0, 0, 0 ) },
{ 1.0000, QColor::fromRgb( 255, 255, 255 ) },
};
static const QskGradientStops stopsAlpha = {
{ 0.0000, QColor::fromRgb( 0, 0, 0, 0) },
{ 1.0000, QColor::fromRgb( 0, 0, 0, 255 ) },
};
auto make_gradient = []( const QskGradientStops& stops, Qt::Orientation orientation ) {
QskGradient gradient(stops);
gradient.setLinearDirection(orientation);
return gradient;
};
static constexpr auto Horizontal = static_cast<QskAspect::Variation>(Qt::Horizontal);
static constexpr auto Vertical = static_cast<QskAspect::Variation>(Qt::Vertical);
setColor( Fill, Qt::transparent );
setGradientHint( Groove, make_gradient(stopsRGB, Qt::Horizontal) );
setGradientHint( Groove | Horizontal, make_gradient(stopsRGB, Qt::Horizontal) );
setGradientHint( Groove | Vertical, make_gradient(stopsRGB, Qt::Vertical) );
setGradientHint( Groove | Grayscale, make_gradient( stopsGrayscale, Qt::Horizontal ) );
setGradientHint( Groove | Grayscale | Horizontal, make_gradient( stopsGrayscale, Qt::Horizontal ) );
setGradientHint( Groove | Grayscale | Vertical, make_gradient( stopsGrayscale, Qt::Vertical ) );
setGradientHint( Groove | Alpha, make_gradient( stopsGrayscale, Qt::Horizontal ) );
setGradientHint( Groove | Alpha | Horizontal, make_gradient( stopsGrayscale, Qt::Horizontal ) );
setGradientHint( Groove | Alpha | Vertical, make_gradient( stopsGrayscale, Qt::Vertical ) );
setBoxBorderColorsHint( Handle, Qt::white );
setBoxBorderMetricsHint( Handle, 2 );
connect( this, &QskSlider::valueChanged, this, [ this ]( qreal value ) {
value = this->orientation() == Qt::Horizontal ? value : 1.0 - value;
const auto gradient = gradientHint(Groove);
const auto selectedColor = gradient.extracted( value, value ).startColor();
const auto selectedColor = colorForPosition(gradient, value);
setColor( Inherited::Handle, selectedColor );
setColor( Inherited::Ripple, selectedColor );
if(m_mode == RGB)
{
setBoxBorderColorsHint( Inherited::Handle, Qt::white );
if(skinStates().testFlag(Alpha))
{
m_color.setAlpha(value);
}
else
{
const auto i = 255 - selectedColor.red();
setBoxBorderColorsHint( Inherited::Handle, QColor( i, i, i ) );
m_color.setRed(selectedColor.red());
m_color.setGreen(selectedColor.green());
m_color.setBlue(selectedColor.blue());
}
Q_EMIT selectedColorChanged();
} );
valueChanged(0.0);
@ -147,8 +177,7 @@ namespace
QColor LinearGradientSlider::selectedColor() const
{
const auto gradient = gradientHint(Groove);
return gradient.extracted( value(), value() ).startColor();
return m_color;
}
class ChartBox : public QskControl
@ -261,8 +290,10 @@ namespace
auto shadowExtent = new SliderBox( "Shadow Extent", 0.0, 100.0, 50 );
auto sliderOffsetX = new SliderBox( "Offset X", -1.0, +1.0, 0 );
auto sliderOffsetY = new SliderBox( "Offset Y", -1.0, +1.0, 0 );
auto sliderStrokeWidth = new SliderBox( "Stroke Width", 0, 10, 1 );
auto sliderFillColor = new SliderBox( "Fill Color", 0.0, 1.0, 0 , []( QQuickItem* parent = nullptr ) { return new LinearGradientSlider( parent ); });
auto sliderShadowColor = new SliderBox( "Shadow Color", 0.0, 1.0, 0, []( QQuickItem* parent = nullptr ) { return new LinearGradientSlider( parent ); } );
auto sliderStrokeColor = new SliderBox( "Stroke Color", 0.0, 1.0, 0, []( QQuickItem* parent = nullptr ) { return new LinearGradientSlider( parent ); } );
connect( sliderStart, &SliderBox::valueChanged,
this, &ControlPanel::startAngleChanged );
@ -285,6 +316,9 @@ namespace
connect( shadowExtent, &SliderBox::valueChanged,
this, &ControlPanel::shadowExtendChanged );
connect( sliderStrokeWidth, &SliderBox::valueChanged,
this, &ControlPanel::strokeWidthChanged );
connect( sliderFillColor, &SliderBox::valueChanged, this, [=](){
auto* const slider = sliderFillColor->findChild<LinearGradientSlider*>();
Q_EMIT fillColorChanged(slider->selectedColor());
@ -295,14 +329,21 @@ namespace
Q_EMIT shadowColorChanged(slider->selectedColor());
} );
connect( sliderStrokeColor, &SliderBox::valueChanged, this, [=](){
auto* const slider = sliderStrokeColor->findChild<LinearGradientSlider*>();
Q_EMIT strokeColorChanged(slider->selectedColor());
} );
addItem( sliderStart, 0, 0 );
addItem( sliderExtent, 0, 1 );
addItem( shadowExtent, 0, 2 );
addItem( sliderSpan, 1, 0, 1, 2 );
addItem( sliderSpan, 1, 0, 1, 1 );
addItem( sliderStrokeWidth, 1, 1, 1, 1 );
addItem( sliderOffsetX, 2, 0, 1, 1 );
addItem( sliderOffsetY, 2, 1, 1, 1 );
addItem( sliderFillColor, 3, 0, 1, 1 );
addItem( sliderShadowColor, 3, 1, 1, 1 );
addItem( sliderStrokeColor, 3, 2, 1, 1 );
}
Q_SIGNALS:
@ -312,8 +353,10 @@ namespace
void offsetXChanged( qreal );
void offsetYChanged( qreal );
void fillColorChanged( QColor );
void strokeColorChanged( QColor );
void shadowColorChanged( QColor );
void shadowExtendChanged( qreal );
void strokeWidthChanged( qreal );
};
class Legend : public QskGridBox
@ -426,6 +469,15 @@ ChartView::ChartView( ArcControl* chart, QQuickItem* parent )
connect( controlPanel, &ControlPanel::shadowColorChanged, chart,
[ = ]( QColor c ) { chart->setShadowColorHint( subcontrol, c ); } );
connect( controlPanel, &ControlPanel::strokeColorChanged, chart,
[ = ]( QColor c ) {
chart->setColor( subcontrol | QskAspect::Border, c );
} );
connect( controlPanel, &ControlPanel::strokeWidthChanged, chart, [ = ]( qreal v ) {
chart->setMetric(subcontrol | QskAspect::Border, v);
} );
setHeader( controlPanel );
setBody( hBox );
}

2
src/nodes/QskStrokeNode.cpp
View File

@ -24,7 +24,7 @@ static inline bool qskIsPenVisible( const QPen& pen )
}
else
{
if ( pen.color().isValid() || ( pen.color().alpha() == 0 ) )
if ( !pen.color().isValid() || ( pen.color().alpha() == 0 ) )
return false;
}

21
src/nodes/shaders/arcshadow.frag
View File

@ -1,15 +1,14 @@
uniform lowp float qt_Opacity;
uniform lowp vec4 color;
uniform lowp vec4 rect;
uniform lowp vec2 offset;
uniform lowp float radius;
uniform lowp float thickness;
uniform lowp float startAngle;
uniform lowp float spanAngle;
uniform lowp float extend;
const float M_PI = 3.141592653589793;
// arc
uniform lowp vec4 rect; // arc's rectangle on screen in pixel x,y,w,h
uniform lowp float radius; // arc's radius [0.0, 1.0]
uniform lowp float thickness; // arc's thickness
uniform lowp float startAngle; // arc's start angle
uniform lowp float spanAngle; // arc's span angle
// shadow
uniform lowp vec4 color; // shadow's color
uniform lowp vec2 offset; // shadow's offset (x,y) : [-1.0, +1.0]x[-1.0,+1.0]
uniform lowp float extend; // shadow length around
float sdRing( in vec2 p, in vec2 n, in float r, in float th )
{