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/*************************************************************************
* Copyright (C) 2014 by Hugo Pereira Da Costa <hugo.pereira@free.fr> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA . *
*************************************************************************/
#include "breezehelper.h"
#include "breeze.h"
#include "breezestyleconfigdata.h"
#include <KColorUtils>
#include <KWindowSystem>
#include <QApplication>
#include <QPainter>
#if BREEZE_HAVE_X11 && QT_VERSION < 0x050000
#include <X11/Xlib-xcb.h>
#endif
#include <algorithm>
namespace Breeze
{
//* contrast for arrow and treeline rendering
static const qreal arrowShade = 0.15;
//____________________________________________________________________
Helper::Helper( KSharedConfig::Ptr config ):
_config( std::move( config ) )
{ init(); }
//____________________________________________________________________
#if BREEZE_USE_KDE4
Helper::Helper( const QByteArray& name ):
_componentData( name, nullptr, KComponentData::SkipMainComponentRegistration ),
_config( _componentData.config() )
{ init(); }
#endif
//____________________________________________________________________
KSharedConfig::Ptr Helper::config() const
{ return _config; }
//____________________________________________________________________
void Helper::loadConfig()
{
_viewFocusBrush = KStatefulBrush( KColorScheme::View, KColorScheme::FocusColor );
_viewHoverBrush = KStatefulBrush( KColorScheme::View, KColorScheme::HoverColor );
_viewNegativeTextBrush = KStatefulBrush( KColorScheme::View, KColorScheme::NegativeText );
const QPalette palette( QApplication::palette() );
const KConfigGroup group( _config->group( "WM" ) );
_activeTitleBarColor = group.readEntry( "activeBackground", palette.color( QPalette::Active, QPalette::Highlight ) );
_activeTitleBarTextColor = group.readEntry( "activeForeground", palette.color( QPalette::Active, QPalette::HighlightedText ) );
_inactiveTitleBarColor = group.readEntry( "inactiveBackground", palette.color( QPalette::Disabled, QPalette::Highlight ) );
_inactiveTitleBarTextColor = group.readEntry( "inactiveForeground", palette.color( QPalette::Disabled, QPalette::HighlightedText ) );
}
//____________________________________________________________________
QColor Helper::frameOutlineColor( const QPalette& palette, bool mouseOver, bool hasFocus, qreal opacity, AnimationMode mode ) const
{
QColor outline( KColorUtils::mix( palette.color( QPalette::Window ), palette.color( QPalette::WindowText ), 0.25 ) );
// focus takes precedence over hover
if( mode == AnimationFocus )
{
const QColor focus( focusColor( palette ) );
const QColor hover( hoverColor( palette ) );
if( mouseOver ) outline = KColorUtils::mix( hover, focus, opacity );
else outline = KColorUtils::mix( outline, focus, opacity );
} else if( hasFocus ) {
outline = focusColor( palette );
} else if( mode == AnimationHover ) {
const QColor hover( hoverColor( palette ) );
outline = KColorUtils::mix( outline, hover, opacity );
} else if( mouseOver ) {
outline = hoverColor( palette );
}
return outline;
}
//____________________________________________________________________
QColor Helper::focusOutlineColor( const QPalette& palette ) const
{ return KColorUtils::mix( focusColor( palette ), palette.color( QPalette::WindowText ), 0.15 ); }
//____________________________________________________________________
QColor Helper::hoverOutlineColor( const QPalette& palette ) const
{ return KColorUtils::mix( hoverColor( palette ), palette.color( QPalette::WindowText ), 0.15 ); }
//____________________________________________________________________
QColor Helper::buttonFocusOutlineColor( const QPalette& palette ) const
{ return KColorUtils::mix( focusColor( palette ), palette.color( QPalette::ButtonText ), 0.15 ); }
//____________________________________________________________________
QColor Helper::buttonHoverOutlineColor( const QPalette& palette ) const
{ return KColorUtils::mix( hoverColor( palette ), palette.color( QPalette::ButtonText ), 0.15 ); }
//____________________________________________________________________
QColor Helper::sidePanelOutlineColor( const QPalette& palette, bool hasFocus, qreal opacity, AnimationMode mode ) const
{
QColor outline( palette.color( QPalette::Inactive, QPalette::Highlight ) );
const QColor &focus = palette.color( QPalette::Active, QPalette::Highlight );
if( mode == AnimationFocus )
{
outline = KColorUtils::mix( outline, focus, opacity );
} else if( hasFocus ) {
outline = focus;
}
return outline;
}
//____________________________________________________________________
QColor Helper::frameBackgroundColor( const QPalette& palette, QPalette::ColorGroup group ) const
{ return KColorUtils::mix( palette.color( group, QPalette::Window ), palette.color( group, QPalette::Base ), 0.3 ); }
//____________________________________________________________________
QColor Helper::arrowColor( const QPalette& palette, QPalette::ColorGroup group, QPalette::ColorRole role ) const
{
switch( role )
{
case QPalette::Text: return KColorUtils::mix( palette.color( group, QPalette::Text ), palette.color( group, QPalette::Base ), arrowShade );
case QPalette::WindowText: return KColorUtils::mix( palette.color( group, QPalette::WindowText ), palette.color( group, QPalette::Window ), arrowShade );
case QPalette::ButtonText: return KColorUtils::mix( palette.color( group, QPalette::ButtonText ), palette.color( group, QPalette::Button ), arrowShade );
default: return palette.color( group, role );
}
}
//____________________________________________________________________
QColor Helper::arrowColor( const QPalette& palette, bool mouseOver, bool hasFocus, qreal opacity, AnimationMode mode ) const
{
QColor outline( arrowColor( palette, QPalette::WindowText ) );
if( mode == AnimationHover )
{
const QColor focus( focusColor( palette ) );
const QColor hover( hoverColor( palette ) );
if( hasFocus ) outline = KColorUtils::mix( focus, hover, opacity );
else outline = KColorUtils::mix( outline, hover, opacity );
} else if( mouseOver ) {
outline = hoverColor( palette );
} else if( mode == AnimationFocus ) {
const QColor focus( focusColor( palette ) );
outline = KColorUtils::mix( outline, focus, opacity );
} else if( hasFocus ) {
outline = focusColor( palette );
}
return outline;
}
//____________________________________________________________________
QColor Helper::buttonOutlineColor( const QPalette& palette, bool mouseOver, bool hasFocus, qreal opacity, AnimationMode mode ) const
{
QColor outline( KColorUtils::mix( palette.color( QPalette::Button ), palette.color( QPalette::ButtonText ), 0.3 ) );
if( mode == AnimationHover )
{
if( hasFocus )
{
const QColor focus( buttonFocusOutlineColor( palette ) );
const QColor hover( buttonHoverOutlineColor( palette ) );
outline = KColorUtils::mix( focus, hover, opacity );
} else {
const QColor hover( hoverColor( palette ) );
outline = KColorUtils::mix( outline, hover, opacity );
}
} else if( mouseOver ) {
if( hasFocus ) outline = buttonHoverOutlineColor( palette );
else outline = hoverColor( palette );
} else if( mode == AnimationFocus ) {
const QColor focus( buttonFocusOutlineColor( palette ) );
outline = KColorUtils::mix( outline, focus, opacity );
} else if( hasFocus ) {
outline = buttonFocusOutlineColor( palette );
}
return outline;
}
//____________________________________________________________________
QColor Helper::buttonBackgroundColor( const QPalette& palette, bool mouseOver, bool hasFocus, bool sunken, qreal opacity, AnimationMode mode ) const
{
QColor background( sunken ?
KColorUtils::mix( palette.color( QPalette::Button ), palette.color( QPalette::ButtonText ), 0.2 ):
palette.color( QPalette::Button ) );
if( mode == AnimationHover )
{
const QColor focus( focusColor( palette ) );
const QColor hover( hoverColor( palette ) );
if( hasFocus ) background = KColorUtils::mix( focus, hover, opacity );
} else if( mouseOver && hasFocus ) {
background = hoverColor( palette );
} else if( mode == AnimationFocus ) {
const QColor focus( focusColor( palette ) );
background = KColorUtils::mix( background, focus, opacity );
} else if( hasFocus ) {
background = focusColor( palette );
}
return background;
}
//____________________________________________________________________
QColor Helper::toolButtonColor( const QPalette& palette, bool mouseOver, bool hasFocus, bool sunken, qreal opacity, AnimationMode mode ) const
{
QColor outline;
const QColor hoverColor( this->hoverColor( palette ) );
const QColor focusColor( this->focusColor( palette ) );
const QColor sunkenColor = alphaColor( palette.color( QPalette::WindowText ), 0.2 );
// hover takes precedence over focus
if( mode == AnimationHover )
{
if( hasFocus ) outline = KColorUtils::mix( focusColor, hoverColor, opacity );
else if( sunken ) outline = sunkenColor;
else outline = alphaColor( hoverColor, opacity );
} else if( mouseOver ) {
outline = hoverColor;
} else if( mode == AnimationFocus ) {
if( sunken ) outline = KColorUtils::mix( sunkenColor, focusColor, opacity );
else outline = alphaColor( focusColor, opacity );
} else if( hasFocus ) {
outline = focusColor;
} else if( sunken ) {
outline = sunkenColor;
}
return outline;
}
//____________________________________________________________________
QColor Helper::sliderOutlineColor( const QPalette& palette, bool mouseOver, bool hasFocus, qreal opacity, AnimationMode mode ) const
{
QColor outline( KColorUtils::mix( palette.color( QPalette::Window ), palette.color( QPalette::WindowText ), 0.4 ) );
// hover takes precedence over focus
if( mode == AnimationHover )
{
const QColor hover( hoverColor( palette ) );
const QColor focus( focusColor( palette ) );
if( hasFocus ) outline = KColorUtils::mix( focus, hover, opacity );
else outline = KColorUtils::mix( outline, hover, opacity );
} else if( mouseOver ) {
outline = hoverColor( palette );
} else if( mode == AnimationFocus ) {
const QColor focus( focusColor( palette ) );
outline = KColorUtils::mix( outline, focus, opacity );
} else if( hasFocus ) {
outline = focusColor( palette );
}
return outline;
}
//____________________________________________________________________
QColor Helper::scrollBarHandleColor( const QPalette& palette, bool mouseOver, bool hasFocus, qreal opacity, AnimationMode mode ) const
{
QColor color( alphaColor( palette.color( QPalette::WindowText ), 0.5 ) );
// hover takes precedence over focus
if( mode == AnimationHover )
{
const QColor hover( hoverColor( palette ) );
const QColor focus( focusColor( palette ) );
if( hasFocus ) color = KColorUtils::mix( focus, hover, opacity );
else color = KColorUtils::mix( color, hover, opacity );
} else if( mouseOver ) {
color = hoverColor( palette );
} else if( mode == AnimationFocus ) {
const QColor focus( focusColor( palette ) );
color = KColorUtils::mix( color, focus, opacity );
} else if( hasFocus ) {
color = focusColor( palette );
}
return color;
}
//______________________________________________________________________________
QColor Helper::checkBoxIndicatorColor( const QPalette& palette, bool mouseOver, bool active, qreal opacity, AnimationMode mode ) const
{
QColor color( KColorUtils::mix( palette.color( QPalette::Window ), palette.color( QPalette::WindowText ), 0.6 ) );
if( mode == AnimationHover )
{
const QColor focus( focusColor( palette ) );
const QColor hover( hoverColor( palette ) );
if( active ) color = KColorUtils::mix( focus, hover, opacity );
else color = KColorUtils::mix( color, hover, opacity );
} else if( mouseOver ) {
color = hoverColor( palette );
} else if( active ) {
color = focusColor( palette );
}
return color;
}
//______________________________________________________________________________
QColor Helper::separatorColor( const QPalette& palette ) const
{ return KColorUtils::mix( palette.color( QPalette::Window ), palette.color( QPalette::WindowText ), 0.25 ); }
//______________________________________________________________________________
QPalette Helper::disabledPalette( const QPalette& source, qreal ratio ) const
{
QPalette copy( source );
const QList<QPalette::ColorRole> roles = { QPalette::Background, QPalette::Highlight, QPalette::WindowText, QPalette::ButtonText, QPalette::Text, QPalette::Button };
foreach( const QPalette::ColorRole& role, roles )
{ copy.setColor( role, KColorUtils::mix( source.color( QPalette::Active, role ), source.color( QPalette::Disabled, role ), 1.0-ratio ) ); }
return copy;
}
//____________________________________________________________________
QColor Helper::alphaColor( QColor color, qreal alpha ) const
{
if( alpha >= 0 && alpha < 1.0 )
{ color.setAlphaF( alpha*color.alphaF() ); }
return color;
}
//______________________________________________________________________________
void Helper::renderDebugFrame( QPainter* painter, const QRect& rect ) const
{
painter->save();
painter->setRenderHints( QPainter::Antialiasing );
painter->setBrush( Qt::NoBrush );
painter->setPen( Qt::red );
painter->drawRect( QRectF( rect ).adjusted( 0.5, 0.5, -0.5, -0.5 ) );
painter->restore();
}
//______________________________________________________________________________
void Helper::renderFocusRect( QPainter* painter, const QRect& rect, const QColor& color, const QColor& outline, Sides sides ) const
{
if( !color.isValid() ) return;
painter->save();
painter->setRenderHints( QPainter::Antialiasing );
painter->setBrush( color );
if( !( outline.isValid() && sides ) )
{
painter->setPen( Qt::NoPen );
painter->drawRect( rect );
} else {
painter->setClipRect( rect );
QRectF copy( rect );
copy.adjust( 0.5, 0.5, -0.5, -0.5 );
const qreal radius( frameRadius( -1.0 ) );
if( !(sides&SideTop) ) copy.adjust( 0, -radius, 0, 0 );
if( !(sides&SideBottom) ) copy.adjust( 0, 0, 0, radius );
if( !(sides&SideLeft) ) copy.adjust( -radius, 0, 0, 0 );
if( !(sides&SideRight) ) copy.adjust( 0, 0, radius, 0 );
painter->setPen( outline );
// painter->setBrush( Qt::NoBrush );
painter->drawRoundedRect( copy, radius, radius );
}
painter->restore();
}
//______________________________________________________________________________
void Helper::renderFocusLine( QPainter* painter, const QRect& rect, const QColor& color ) const
{
if( !color.isValid() ) return;
painter->save();
painter->setRenderHint( QPainter::Antialiasing, false );
painter->setBrush( Qt::NoBrush );
painter->setPen( color );
painter->translate( 0, 2 );
painter->drawLine( rect.bottomLeft(), rect.bottomRight() );
painter->restore();
}
//______________________________________________________________________________
void Helper::renderFrame(
QPainter* painter, const QRect& rect,
const QColor& color, const QColor& outline ) const
{
painter->setRenderHint( QPainter::Antialiasing );
QRectF frameRect( rect.adjusted( 1, 1, -1, -1 ) );
qreal radius( frameRadius() );
// set pen
if( outline.isValid() )
{
painter->setPen( outline );
frameRect.adjust( 0.5, 0.5, -0.5, -0.5 );
radius = qMax( radius - 1, qreal( 0.0 ) );
} else {
painter->setPen( Qt::NoPen );
}
// set brush
if( color.isValid() ) painter->setBrush( color );
else painter->setBrush( Qt::NoBrush );
// render
painter->drawRoundedRect( frameRect, radius, radius );
}
//______________________________________________________________________________
void Helper::renderSidePanelFrame( QPainter* painter, const QRect& rect, const QColor& outline, Side side ) const
{
// check color
if( !outline.isValid() ) return;
// adjust rect
QRectF frameRect( rect );
frameRect.adjust( 0.5, 0.5, -0.5, -0.5 );
// setup painter
painter->setRenderHint( QPainter::Antialiasing );
painter->setPen( outline );
// render
switch( side )
{
default:
case SideLeft:
painter->drawLine( frameRect.topRight(), frameRect.bottomRight() );
break;
case SideTop:
painter->drawLine( frameRect.topLeft(), frameRect.topRight() );
break;
case SideRight:
painter->drawLine( frameRect.topLeft(), frameRect.bottomLeft() );
break;
case SideBottom:
painter->drawLine( frameRect.bottomLeft(), frameRect.bottomRight() );
break;
case AllSides:
{
const qreal radius( frameRadius( -1.0 ) );
painter->drawRoundedRect( frameRect, radius, radius );
break;
}
}
}
//______________________________________________________________________________
void Helper::renderMenuFrame(
QPainter* painter, const QRect& rect,
const QColor& color, const QColor& outline, bool roundCorners ) const
{
// set brush
if( color.isValid() ) painter->setBrush( color );
else painter->setBrush( Qt::NoBrush );
if( roundCorners )
{
painter->setRenderHint( QPainter::Antialiasing );
QRectF frameRect( rect );
qreal radius( frameRadius() );
// set pen
if( outline.isValid() )
{
painter->setPen( outline );
frameRect.adjust( 0.5, 0.5, -0.5, -0.5 );
radius = qMax( radius - 1, qreal( 0.0 ) );
} else painter->setPen( Qt::NoPen );
// render
painter->drawRoundedRect( frameRect, radius, radius );
} else {
painter->setRenderHint( QPainter::Antialiasing, false );
QRect frameRect( rect );
if( outline.isValid() )
{
painter->setPen( outline );
frameRect.adjust( 0, 0, -1, -1 );
} else painter->setPen( Qt::NoPen );
painter->drawRect( frameRect );
}
}
//______________________________________________________________________________
void Helper::renderButtonFrame(
QPainter* painter, const QRect& rect,
const QColor& color, const QColor& outline, const QColor& shadow,
bool hasFocus, bool sunken ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
// copy rect
QRectF frameRect( rect );
frameRect.adjust( 1, 1, -1, -1 );
qreal radius( frameRadius() );
// shadow
if( sunken ) {
frameRect.translate( 1, 1 );
} else if( shadow.isValid() ) {
const qreal shadowRadius = qMax( radius - 1, qreal( 0.0 ) );
painter->setPen( QPen( shadow, 2 ) );
painter->setBrush( Qt::NoBrush );
painter->drawRoundedRect( shadowRect( frameRect ), shadowRadius, shadowRadius );
}
if( outline.isValid() )
{
QLinearGradient gradient( frameRect.topLeft(), frameRect.bottomLeft() );
gradient.setColorAt( 0, outline.lighter( hasFocus ? 103:101 ) );
gradient.setColorAt( 1, outline.darker( hasFocus ? 110:103 ) );
painter->setPen( QPen( QBrush( gradient ), 1.0 ) );
frameRect.adjust( 0.5, 0.5, -0.5, -0.5 );
radius = qMax( radius - 1, qreal( 0.0 ) );
} else painter->setPen( Qt::NoPen );
// content
if( color.isValid() )
{
QLinearGradient gradient( frameRect.topLeft(), frameRect.bottomLeft() );
gradient.setColorAt( 0, color.lighter( hasFocus ? 103:101 ) );
gradient.setColorAt( 1, color.darker( hasFocus ? 110:103 ) );
painter->setBrush( gradient );
} else painter->setBrush( Qt::NoBrush );
// render
painter->drawRoundedRect( frameRect, radius, radius );
}
//______________________________________________________________________________
void Helper::renderToolButtonFrame(
QPainter* painter, const QRect& rect,
const QColor& color, bool sunken ) const
{
// do nothing for invalid color
if( !color.isValid() ) return;
// setup painter
painter->setRenderHints( QPainter::Antialiasing );
const QRectF baseRect( rect );
if( sunken )
{
const qreal radius( frameRadius() );
painter->setPen( Qt::NoPen );
painter->setBrush( color );
const QRectF contentRect( baseRect.adjusted( 1, 1, -1, -1 ) );
painter->drawRoundedRect( contentRect, radius, radius );
} else {
const qreal radius( frameRadius(-0.5) );
painter->setPen( color );
painter->setBrush( Qt::NoBrush );
const QRectF outlineRect( baseRect.adjusted( 1.5, 1.5, -1.5, -1.5 ) );
painter->drawRoundedRect( outlineRect, radius, radius );
}
}
//______________________________________________________________________________
void Helper::renderToolBoxFrame(
QPainter* painter, const QRect& rect, int tabWidth,
const QColor& outline ) const
{
if( !outline.isValid() ) return;
// round radius
const qreal radius( frameRadius() );
const QSizeF cornerSize( 2*radius, 2*radius );
// if rect - tabwidth is even, need to increase tabWidth by 1 unit
// for anti aliasing
if( !((rect.width() - tabWidth)%2) ) ++tabWidth;
// adjust rect for antialiasing
QRectF baseRect( rect );
baseRect.adjust( 0.5, 0.5, -0.5, -0.5 );
// create path
QPainterPath path;
path.moveTo( 0, baseRect.height()-1 );
path.lineTo( ( baseRect.width() - tabWidth )/2 - radius, baseRect.height()-1 );
path.arcTo( QRectF( QPointF( ( baseRect.width() - tabWidth )/2 - 2*radius, baseRect.height()-1 - 2*radius ), cornerSize ), 270, 90 );
path.lineTo( ( baseRect.width() - tabWidth )/2, radius );
path.arcTo( QRectF( QPointF( ( baseRect.width() - tabWidth )/2, 0 ), cornerSize ), 180, -90 );
path.lineTo( ( baseRect.width() + tabWidth )/2 -1 - radius, 0 );
path.arcTo( QRectF( QPointF( ( baseRect.width() + tabWidth )/2 - 1 - 2*radius, 0 ), cornerSize ), 90, -90 );
path.lineTo( ( baseRect.width() + tabWidth )/2 -1, baseRect.height()-1 - radius );
path.arcTo( QRectF( QPointF( ( baseRect.width() + tabWidth )/2 -1, baseRect.height()-1 - 2*radius ), cornerSize ), 180, 90 );
path.lineTo( baseRect.width()-1, baseRect.height()-1 );
// render
painter->setRenderHints( QPainter::Antialiasing );
painter->setBrush( Qt::NoBrush );
painter->setPen( outline );
painter->translate( baseRect.topLeft() );
painter->drawPath( path );
}
//______________________________________________________________________________
void Helper::renderTabWidgetFrame(
QPainter* painter, const QRect& rect,
const QColor& color, const QColor& outline, Corners corners ) const
{
painter->setRenderHint( QPainter::Antialiasing );
QRectF frameRect( rect.adjusted( 1, 1, -1, -1 ) );
qreal radius( frameRadius() );
// set pen
if( outline.isValid() )
{
painter->setPen( outline );
frameRect.adjust( 0.5, 0.5, -0.5, -0.5 );
radius = qMax( radius-1, qreal( 0.0 ) );
} else painter->setPen( Qt::NoPen );
// set brush
if( color.isValid() ) painter->setBrush( color );
else painter->setBrush( Qt::NoBrush );
// render
QPainterPath path( roundedPath( frameRect, corners, radius ) );
painter->drawPath( path );
}
//______________________________________________________________________________
void Helper::renderSelection(
QPainter* painter, const QRect& rect,
const QColor& color ) const
{
painter->setRenderHint( QPainter::Antialiasing );
painter->setPen( Qt::NoPen );
painter->setBrush( color );
painter->drawRect( rect );
}
//______________________________________________________________________________
void Helper::renderSeparator(
QPainter* painter, const QRect& rect,
const QColor& color, bool vertical ) const
{
painter->setRenderHint( QPainter::Antialiasing, false );
painter->setBrush( Qt::NoBrush );
painter->setPen( color );
if( vertical )
{
painter->translate( rect.width()/2, 0 );
painter->drawLine( rect.topLeft(), rect.bottomLeft() );
} else {
painter->translate( 0, rect.height()/2 );
painter->drawLine( rect.topLeft(), rect.topRight() );
}
}
//______________________________________________________________________________
void Helper::renderCheckBoxBackground(
QPainter* painter, const QRect& rect,
const QColor& color, bool sunken ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
// copy rect and radius
QRectF frameRect( rect );
frameRect.adjust( 3, 3, -3, -3 );
if( sunken ) frameRect.translate(1, 1);
painter->setPen( Qt::NoPen );
painter->setBrush( color );
painter->drawRect( frameRect );
}
//______________________________________________________________________________
void Helper::renderCheckBox(
QPainter* painter, const QRect& rect,
const QColor& color, const QColor& shadow,
bool sunken, CheckBoxState state, qreal animation ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
// copy rect and radius
QRectF frameRect( rect );
frameRect.adjust( 2, 2, -2, -2 );
qreal radius( frameRadius() );
// shadow
if( sunken )
{
frameRect.translate(1, 1);
} else {
painter->setPen( QPen( shadow, 1 ) );
painter->setBrush( Qt::NoBrush );
const qreal shadowRadius( radius + 0.5 );
painter->drawRoundedRect( shadowRect( frameRect ).adjusted( -0.5, -0.5, 0.5, 0.5 ), shadowRadius, shadowRadius );
}
// content
{
painter->setPen( QPen( color, 1 ) );
painter->setBrush( Qt::NoBrush );
radius = qMax( radius-1, qreal( 0.0 ) );
const QRectF contentRect( frameRect.adjusted( 0.5, 0.5, -0.5, -0.5 ) );
painter->drawRoundedRect( contentRect, radius, radius );
}
// mark
if( state == CheckOn )
{
painter->setBrush( color );
painter->setPen( Qt::NoPen );
const QRectF markerRect( frameRect.adjusted( 3, 3, -3, -3 ) );
painter->drawRect( markerRect );
} else if( state == CheckPartial ) {
QPen pen( color, 2 );
pen.setJoinStyle( Qt::MiterJoin );
painter->setPen( pen );
const QRectF markerRect( frameRect.adjusted( 4, 4, -4, -4 ) );
painter->drawRect( markerRect );
painter->setPen( Qt::NoPen );
painter->setBrush( color );
painter->setRenderHint( QPainter::Antialiasing, false );
QPainterPath path;
path.moveTo( markerRect.topLeft() );
path.lineTo( markerRect.right() - 1, markerRect.top() );
path.lineTo( markerRect.left(), markerRect.bottom()-1 );
painter->drawPath( path );
} else if( state == CheckAnimated ) {
const QRectF markerRect( frameRect.adjusted( 3, 3, -3, -3 ) );
QPainterPath path;
path.moveTo( markerRect.topRight() );
path.lineTo( markerRect.center() + animation*( markerRect.topLeft() - markerRect.center() ) );
path.lineTo( markerRect.bottomLeft() );
path.lineTo( markerRect.center() + animation*( markerRect.bottomRight() - markerRect.center() ) );
path.closeSubpath();
painter->setBrush( color );
painter->setPen( Qt::NoPen );
painter->drawPath( path );
}
}
//______________________________________________________________________________
void Helper::renderRadioButtonBackground( QPainter* painter, const QRect& rect, const QColor& color, bool sunken ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
// copy rect
QRectF frameRect( rect );
frameRect.adjust( 3, 3, -3, -3 );
if( sunken ) frameRect.translate(1, 1);
painter->setPen( Qt::NoPen );
painter->setBrush( color );
painter->drawEllipse( frameRect );
}
//______________________________________________________________________________
void Helper::renderRadioButton(
QPainter* painter, const QRect& rect,
const QColor& color, const QColor& shadow,
bool sunken, RadioButtonState state, qreal animation ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
// copy rect
QRectF frameRect( rect );
frameRect.adjust( 2, 2, -2, -2 );
// shadow
if( sunken )
{
frameRect.translate( 1, 1 );
} else {
painter->setPen( QPen( shadow, 1 ) );
painter->setBrush( Qt::NoBrush );
painter->drawEllipse( shadowRect( frameRect ).adjusted( -0.5, -0.5, 0.5, 0.5 ) );
}
// content
{
painter->setPen( QPen( color, 1 ) );
painter->setBrush( Qt::NoBrush );
const QRectF contentRect( frameRect.adjusted( 0.5, 0.5, -0.5, -0.5 ) );
painter->drawEllipse( contentRect );
}
// mark
if( state == RadioOn )
{
painter->setBrush( color );
painter->setPen( Qt::NoPen );
const QRectF markerRect( frameRect.adjusted( 3, 3, -3, -3 ) );
painter->drawEllipse( markerRect );
} else if( state == RadioAnimated ) {
painter->setBrush( color );
painter->setPen( Qt::NoPen );
QRectF markerRect( frameRect.adjusted( 3, 3, -3, -3 ) );
painter->translate( markerRect.center() );
painter->rotate( 45 );
markerRect.setWidth( markerRect.width()*animation );
markerRect.translate( -markerRect.center() );
painter->drawEllipse( markerRect );
}
}
//______________________________________________________________________________
void Helper::renderSliderGroove(
QPainter* painter, const QRect& rect,
const QColor& color ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
const QRectF baseRect( rect );
const qreal radius( 0.5*Metrics::Slider_GrooveThickness );
// content
if( color.isValid() )
{
painter->setPen( Qt::NoPen );
painter->setBrush( color );
painter->drawRoundedRect( baseRect, radius, radius );
}
}
//______________________________________________________________________________
void Helper::renderDialGroove(
QPainter* painter, const QRect& rect,
const QColor& color,
qreal first, qreal last ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
const QRectF baseRect( rect );
// content
if( color.isValid() )
{
const qreal penWidth( Metrics::Slider_GrooveThickness );
const QRectF grooveRect( rect.adjusted( penWidth/2, penWidth/2, -penWidth/2, -penWidth/2 ) );
// setup angles
const int angleStart( first * 180 * 16 / M_PI );
const int angleSpan( (last - first ) * 180 * 16 / M_PI );
// setup pen
if( angleSpan != 0 )
{
QPen pen( color, penWidth );
pen.setCapStyle( Qt::RoundCap );
painter->setPen( pen );
painter->setBrush( Qt::NoBrush );
painter->drawArc( grooveRect, angleStart, angleSpan );
}
}
}
//______________________________________________________________________________
void Helper::renderDialContents(
QPainter* painter, const QRect& rect,
const QColor& color,
qreal first, qreal second ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
const QRectF baseRect( rect );
// content
if( color.isValid() )
{
// setup groove rect
const qreal penWidth( Metrics::Slider_GrooveThickness );
const QRectF grooveRect( rect.adjusted( penWidth/2, penWidth/2, -penWidth/2, -penWidth/2 ) );
// setup angles
const int angleStart( first * 180 * 16 / M_PI );
const int angleSpan( (second - first ) * 180 * 16 / M_PI );
// setup pen
if( angleSpan != 0 )
{
QPen pen( color, penWidth );
pen.setCapStyle( Qt::RoundCap );
painter->setPen( pen );
painter->setBrush( Qt::NoBrush );
painter->drawArc( grooveRect, angleStart, angleSpan );
}
}
}
//______________________________________________________________________________
void Helper::renderSliderHandle(
QPainter* painter, const QRect& rect,
const QColor& color,
const QColor& outline,
const QColor& shadow,
bool sunken ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
// copy rect
QRectF frameRect( rect );
frameRect.adjust( 1, 1, -1, -1 );
// shadow
if( shadow.isValid() && !sunken )
{
painter->setPen( QPen( shadow, 2 ) );
painter->setBrush( Qt::NoBrush );
painter->drawEllipse( shadowRect( frameRect ) );
}
// set pen
if( outline.isValid() )
{
painter->setPen( outline );
frameRect.adjust( 0.5, 0.5, -0.5, -0.5 );
} else painter->setPen( Qt::NoPen );
// set brush
if( color.isValid() ) painter->setBrush( color );
else painter->setBrush( Qt::NoBrush );
// render
painter->drawEllipse( frameRect );
}
//______________________________________________________________________________
void Helper::renderProgressBarGroove(
QPainter* painter, const QRect& rect,
const QColor& color ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
const QRectF baseRect( rect );
const qreal radius( 0.5*Metrics::ProgressBar_Thickness );
// content
if( color.isValid() )
{
painter->setPen( Qt::NoPen );
painter->setBrush( color );
painter->drawRoundedRect( baseRect, radius, radius );
}
}
//______________________________________________________________________________
void Helper::renderProgressBarBusyContents(
QPainter* painter, const QRect& rect,
const QColor& first,
const QColor& second,
bool horizontal,
bool reverse,
int progress
) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
const QRectF baseRect( rect );
const qreal radius( 0.5*Metrics::ProgressBar_Thickness );
// setup brush
QPixmap pixmap( horizontal ? 2*Metrics::ProgressBar_BusyIndicatorSize : 1, horizontal ? 1:2*Metrics::ProgressBar_BusyIndicatorSize );
pixmap.fill( second );
if( horizontal )
{
QPainter painter( &pixmap );
painter.setBrush( first );
painter.setPen( Qt::NoPen );
progress %= 2*Metrics::ProgressBar_BusyIndicatorSize;
if( reverse ) progress = 2*Metrics::ProgressBar_BusyIndicatorSize - progress - 1;
painter.drawRect( QRect( 0, 0, Metrics::ProgressBar_BusyIndicatorSize, 1 ).translated( progress, 0 ) );
if( progress > Metrics::ProgressBar_BusyIndicatorSize )
{ painter.drawRect( QRect( 0, 0, Metrics::ProgressBar_BusyIndicatorSize, 1 ).translated( progress - 2*Metrics::ProgressBar_BusyIndicatorSize, 0 ) ); }
} else {
QPainter painter( &pixmap );
painter.setBrush( first );
painter.setPen( Qt::NoPen );
progress %= 2*Metrics::ProgressBar_BusyIndicatorSize;
progress = 2*Metrics::ProgressBar_BusyIndicatorSize - progress - 1;
painter.drawRect( QRect( 0, 0, 1, Metrics::ProgressBar_BusyIndicatorSize ).translated( 0, progress ) );
if( progress > Metrics::ProgressBar_BusyIndicatorSize )
{ painter.drawRect( QRect( 0, 0, 1, Metrics::ProgressBar_BusyIndicatorSize ).translated( 0, progress - 2*Metrics::ProgressBar_BusyIndicatorSize ) ); }
}
painter->setPen( Qt::NoPen );
painter->setBrush( pixmap );
painter->drawRoundedRect( baseRect, radius, radius );
}
//______________________________________________________________________________
void Helper::renderScrollBarHandle(
QPainter* painter, const QRect& rect,
const QColor& color ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
const QRectF baseRect( rect );
const qreal radius( 0.5 * std::min({baseRect.width(), baseRect.height(), (qreal)Metrics::ScrollBar_SliderWidth}) );
// content
if( color.isValid() )
{
painter->setPen( Qt::NoPen );
painter->setBrush( color );
painter->drawRoundedRect( baseRect, radius, radius );
}
}
//______________________________________________________________________________
void Helper::renderTabBarTab( QPainter* painter, const QRect& rect, const QColor& color, const QColor& outline, Corners corners ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
QRectF frameRect( rect );
qreal radius( frameRadius() );
// pen
if( outline.isValid() )
{
painter->setPen( outline );
frameRect.adjust( 0.5, 0.5, -0.5, -0.5 );
radius = qMax( radius-1, qreal( 0.0 ) );
} else painter->setPen( Qt::NoPen );
// brush
if( color.isValid() ) painter->setBrush( color );
else painter->setBrush( Qt::NoBrush );
// render
QPainterPath path( roundedPath( frameRect, corners, radius ) );
painter->drawPath( path );
}
//______________________________________________________________________________
void Helper::renderArrow( QPainter* painter, const QRect& rect, const QColor& color, ArrowOrientation orientation ) const
{
// define polygon
QPolygonF arrow;
switch( orientation )
{
case ArrowUp: arrow = QVector<QPointF>{QPointF( -4, 2 ), QPointF( 0, -2 ), QPointF( 4, 2 )}; break;
case ArrowDown: arrow = QVector<QPointF>{QPointF( -4, -2 ), QPointF( 0, 2 ), QPointF( 4, -2 )}; break;
case ArrowLeft: arrow = QVector<QPointF>{QPointF( 2, -4 ), QPointF( -2, 0 ), QPointF( 2, 4 )}; break;
case ArrowRight: arrow = QVector<QPointF>{QPointF( -2, -4 ), QPointF( 2, 0 ), QPointF( -2, 4 )}; break;
default: break;
}
painter->save();
painter->setRenderHints( QPainter::Antialiasing );
painter->translate( QRectF( rect ).center() );
painter->setBrush( Qt::NoBrush );
painter->setPen( QPen( color, 1.1 ) );
painter->drawPolyline( arrow );
painter->restore();
}
//______________________________________________________________________________
void Helper::renderDecorationButton( QPainter* painter, const QRect& rect, const QColor& color, ButtonType buttonType, bool inverted ) const
{
painter->save();
painter->setViewport( rect );
painter->setWindow( 0, 0, 18, 18 );
painter->setRenderHints( QPainter::Antialiasing );
// initialize pen
QPen pen;
pen.setCapStyle( Qt::RoundCap );
pen.setJoinStyle( Qt::MiterJoin );
if( inverted )
{
// render circle
painter->setPen( Qt::NoPen );
painter->setBrush( color );
painter->drawEllipse( QRectF( 0, 0, 18, 18 ) );
// take out the inner part
painter->setCompositionMode( QPainter::CompositionMode_DestinationOut );
painter->setBrush( Qt::NoBrush );
pen.setColor( Qt::black );
} else {
painter->setBrush( Qt::NoBrush );
pen.setColor( color );
}
pen.setCapStyle( Qt::RoundCap );
pen.setJoinStyle( Qt::MiterJoin );
pen.setWidthF( 1.1*qMax(1.0, 18.0/rect.width() ) );
painter->setPen( pen );
switch( buttonType )
{
case ButtonClose:
{
painter->drawLine( QPointF( 5, 5 ), QPointF( 13, 13 ) );
painter->drawLine( 13, 5, 5, 13 );
break;
}
case ButtonMaximize:
{
painter->drawPolyline( QVector<QPointF>{
QPointF( 4, 11 ),
QPointF( 9, 6 ),
QPointF( 14, 11 )});
break;
}
case ButtonMinimize:
{
painter->drawPolyline(QVector<QPointF>{
QPointF( 4, 7 ),
QPointF( 9, 12 ),
QPointF( 14, 7 )} );
break;
}
case ButtonRestore:
{
pen.setJoinStyle( Qt::RoundJoin );
painter->setPen( pen );
painter->drawPolygon( QVector<QPointF>{
QPointF( 4.5, 9 ),
QPointF( 9, 4.5 ),
QPointF( 13.5, 9 ),
QPointF( 9, 13.5 )});
break;
}
default: break;
}
painter->restore();
}
//______________________________________________________________________________
bool Helper::isX11()
{
#if BREEZE_HAVE_X11
#if QT_VERSION >= 0x050000
static const bool s_isX11 = KWindowSystem::isPlatformX11();
return s_isX11;
#else
return true;
#endif
#endif
return false;
}
//______________________________________________________________________________
bool Helper::isWayland()
{
#if QT_VERSION >= 0x050000
static const bool s_isWayland = KWindowSystem::isPlatformWayland();
return s_isWayland;
#else
return false;
#endif
}
//______________________________________________________________________________
QRectF Helper::shadowRect( const QRectF& rect ) const
{ return rect.adjusted( 0.5, 0.5, -0.5, -0.5 ).translated( 0.5, 0.5 ); }
//______________________________________________________________________________
QPainterPath Helper::roundedPath( const QRectF& rect, Corners corners, qreal radius ) const
{
QPainterPath path;
// simple cases
if( corners == 0 )
{
path.addRect( rect );
return path;
}
if( corners == AllCorners ) {
path.addRoundedRect( rect, radius, radius );
return path;
}
const QSizeF cornerSize( 2*radius, 2*radius );
// rotate counterclockwise
// top left corner
if( corners & CornerTopLeft )
{
path.moveTo( rect.topLeft() + QPointF( radius, 0 ) );
path.arcTo( QRectF( rect.topLeft(), cornerSize ), 90, 90 );
} else path.moveTo( rect.topLeft() );
// bottom left corner
if( corners & CornerBottomLeft )
{
path.lineTo( rect.bottomLeft() - QPointF( 0, radius ) );
path.arcTo( QRectF( rect.bottomLeft() - QPointF( 0, 2*radius ), cornerSize ), 180, 90 );
} else path.lineTo( rect.bottomLeft() );
// bottom right corner
if( corners & CornerBottomRight )
{
path.lineTo( rect.bottomRight() - QPointF( radius, 0 ) );
path.arcTo( QRectF( rect.bottomRight() - QPointF( 2*radius, 2*radius ), cornerSize ), 270, 90 );
} else path.lineTo( rect.bottomRight() );
// top right corner
if( corners & CornerTopRight )
{
path.lineTo( rect.topRight() + QPointF( 0, radius ) );
path.arcTo( QRectF( rect.topRight() - QPointF( 2*radius, 0 ), cornerSize ), 0, 90 );
} else path.lineTo( rect.topRight() );
path.closeSubpath();
return path;
}
//________________________________________________________________________________________________________
bool Helper::compositingActive() const
{
#if BREEZE_HAVE_X11
if( isX11() )
{
// direct call to X
xcb_get_selection_owner_cookie_t cookie( xcb_get_selection_owner( connection(), _compositingManagerAtom ) );
ScopedPointer<xcb_get_selection_owner_reply_t> reply( xcb_get_selection_owner_reply( connection(), cookie, nullptr ) );
return reply && reply->owner;
}
#endif
// use KWindowSystem
return KWindowSystem::compositingActive();
}
//____________________________________________________________________
bool Helper::hasAlphaChannel( const QWidget* widget ) const
{ return compositingActive() && widget && widget->testAttribute( Qt::WA_TranslucentBackground ); }
//______________________________________________________________________________________
QPixmap Helper::highDpiPixmap( int width, int height ) const
{
#if QT_VERSION >= 0x050300
const qreal dpiRatio( qApp->devicePixelRatio() );
QPixmap pixmap( width*dpiRatio, height*dpiRatio );
pixmap.setDevicePixelRatio( dpiRatio );
return pixmap;
#else
return QPixmap( width, height );
#endif
}
//______________________________________________________________________________________
qreal Helper::devicePixelRatio( const QPixmap& pixmap ) const
{
#if QT_VERSION >= 0x050300
return pixmap.devicePixelRatio();
#else
Q_UNUSED(pixmap);
return 1;
#endif
}
#if BREEZE_HAVE_X11
//____________________________________________________________________
xcb_connection_t* Helper::connection()
{
#if QT_VERSION >= 0x050000
return QX11Info::connection();
#else
static xcb_connection_t* connection = nullptr;
if( !connection )
{
Display* display = QX11Info::display();
if( display ) connection = XGetXCBConnection( display );
}
return connection;
#endif
}
//____________________________________________________________________
xcb_atom_t Helper::createAtom( const QString& name ) const
{
if( isX11() )
{
xcb_connection_t* connection( Helper::connection() );
xcb_intern_atom_cookie_t cookie( xcb_intern_atom( connection, false, name.size(), qPrintable( name ) ) );
ScopedPointer<xcb_intern_atom_reply_t> reply( xcb_intern_atom_reply( connection, cookie, nullptr) );
return reply ? reply->atom:0;
} else return 0;
}
#endif
//____________________________________________________________________
void Helper::init()
{
#if BREEZE_HAVE_X11
if( isX11() )
{
// create compositing screen
const QString atomName( QStringLiteral( "_NET_WM_CM_S%1" ).arg( QX11Info::appScreen() ) );
_compositingManagerAtom = createAtom( atomName );
}
#endif
}
}