/*************************************************************************
* 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 "adwaitahelper.h"
#include "adwaita.h"
#include "fakeadwaitastyleconfigdata.h"
#include <QApplication>
#include <QPainter>
#include <QLibrary>
#if ADWAITA_HAVE_X11 && QT_VERSION < 0x050000
#include <X11/Xlib-xcb.h>
#endif
namespace Adwaita
{
//* contrast for arrow and treeline rendering
static const qreal arrowShade = 0.15;
//____________________________________________________________________
Helper::Helper( )
{ init(); }
//____________________________________________________________________
#if ADWAITA_USE_KDE4
Helper::Helper( const QByteArray& name )
{ init(); }
#endif
//____________________________________________________________________
QColor Helper::frameOutlineColor( const QPalette& palette, bool mouseOver, bool hasFocus, qreal opacity, AnimationMode mode ) const
{
// I really can't remember why we have differed these two cases. This seems right.
return inputOutlineColor(palette, mouseOver, hasFocus, opacity, mode);
}
QColor Helper::inputOutlineColor(const QPalette &palette, bool mouseOver, bool hasFocus, qreal opacity, AnimationMode mode) const
{
QColor outline( buttonOutlineColor( palette, mouseOver, false ) );
QColor focus( palette.color( QPalette::Active, QPalette::Highlight ) );
// focus takes precedence over hover
if( mode == AnimationFocus )
{
outline = mix( outline, focus, opacity );
} else if( hasFocus ) {
outline = focusColor( palette );
}
return outline;
}
//____________________________________________________________________
QColor Helper::focusOutlineColor( const QPalette& palette ) const
{ return mix( focusColor( palette ), palette.color( QPalette::WindowText ), 0.15 ); }
//____________________________________________________________________
QColor Helper::hoverOutlineColor( const QPalette& palette ) const
{ return mix( hoverColor( palette ), palette.color( QPalette::WindowText ), 0.15 ); }
//____________________________________________________________________
QColor Helper::buttonFocusOutlineColor( const QPalette& palette ) const
{ return mix( focusColor( palette ), palette.color( QPalette::ButtonText ), 0.15 ); }
//____________________________________________________________________
QColor Helper::buttonHoverOutlineColor( const QPalette& palette ) const
{ return 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 ) );
QColor focus( palette.color( QPalette::Active, QPalette::Highlight ) );
if( mode == AnimationFocus )
{
outline = mix( outline, focus, opacity );
} else if( hasFocus ) {
outline = focus;
}
return outline;
}
//____________________________________________________________________
QColor Helper::frameBackgroundColor( const QPalette& palette, QPalette::ColorGroup group ) const
{ return 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 mix( palette.color( group, QPalette::Text ), palette.color( group, QPalette::Base ), arrowShade );
case QPalette::WindowText: return mix( palette.color( group, QPalette::WindowText ), palette.color( group, QPalette::Window ), arrowShade );
case QPalette::ButtonText: return 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
{
Q_UNUSED(mouseOver);
Q_UNUSED(hasFocus);
Q_UNUSED(opacity);
Q_UNUSED(mode);
return palette.text().color();
}
//____________________________________________________________________
QColor Helper::buttonOutlineColor( const QPalette& palette, bool mouseOver, bool hasFocus, qreal opacity, AnimationMode mode ) const
{
QColor outline( mix( palette.color( QPalette::Button ), palette.color( QPalette::Shadow ), 0.3 ) );
return outline;
}
//____________________________________________________________________
QColor Helper::buttonBackgroundColor( const QPalette& palette, bool mouseOver, bool hasFocus, bool sunken, qreal opacity, AnimationMode mode ) const
{
QColor background( palette.color( QPalette::Button ) );
if ( mode == AnimationPressed) {
background = background.darker(100 + 15.0 * opacity);
} else if ( sunken ) {
background = background.darker(115);
} else if( mode == AnimationHover )
{
background = mix(background, background.lighter( 120 ), opacity);
//if( hasFocus ) background = mix( focus, hover, opacity );
} else if( mouseOver ) {
background = background.lighter( 120 );
//background = hoverColor( palette );
}
return background;
}
//____________________________________________________________________
QColor Helper::toolButtonColor( const QPalette& palette, bool mouseOver, bool hasFocus, bool sunken, qreal opacity, AnimationMode mode ) const
{
if (sunken || (mode != AnimationNone && mode != AnimationHover) )
return buttonBackgroundColor(palette, mouseOver, hasFocus, sunken, opacity, mode);
return Qt::transparent;
}
//____________________________________________________________________
QColor Helper::sliderOutlineColor( const QPalette& palette, bool mouseOver, bool hasFocus, qreal opacity, AnimationMode mode ) const
{
QColor outline( mix( palette.color( QPalette::Window ), palette.color( QPalette::Shadow ), 0.5 ) );
// hover takes precedence over focus
if( mode == AnimationHover )
{
QColor hover( hoverColor( palette ) );
QColor focus( focusColor( palette ) );
if( hasFocus ) outline = mix( focus, hover, opacity );
else outline = mix( outline, hover, opacity );
} else if( mouseOver ) {
outline = hoverColor( palette );
} else if( mode == AnimationFocus ) {
QColor focus( focusColor( palette ) );
outline = 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 )
{
QColor hover( hoverColor( palette ) );
QColor focus( focusColor( palette ) );
if( hasFocus ) color = mix( focus, hover, opacity );
else color = mix( color, hover, opacity );
} else if( mouseOver ) {
color = hoverColor( palette );
} else if( mode == AnimationFocus ) {
QColor focus( focusColor( palette ) );
color = 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
{
Q_UNUSED(mouseOver);
Q_UNUSED(active);
Q_UNUSED(opacity);
Q_UNUSED(mode);
return palette.text().color();
}
//______________________________________________________________________________
QColor Helper::separatorColor( const QPalette& palette ) const
{ return mix( palette.color( QPalette::Window ), palette.color( QPalette::WindowText ), 0.25 ); }
//____________________________________________________________________
QColor Helper::headerTextColor( const QPalette& palette, const QStyle::State state ) const
{
QColor col(palette.color(QPalette::WindowText));
if (state & QStyle::State_Enabled)
{
if (state & QStyle::State_Sunken)
return alphaColor( col, 0.9 );
else if (state & QStyle::State_MouseOver)
return alphaColor( col, 0.7 );
}
return alphaColor( col, 0.5 );
}
QColor Helper::tabBarColor(const QPalette &palette, const QStyle::State state) const
{
QColor background( mix(palette.window().color(), palette.shadow().color(), 0.15) );
if (!(state & QStyle::State_Enabled))
background = background.lighter(115);
if (!(state & QStyle::State_Active))
background = background.lighter(115);
return background;
}
//______________________________________________________________________________
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, 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 );
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();
return;
}
//______________________________________________________________________________
void Helper::renderFocusLine( QPainter* painter, const QRect& rect, const QColor& color ) const
{
if( !color.isValid() ) return;
painter->save();
QPen pen(color, 1);
pen.setStyle(Qt::DotLine);
painter->setRenderHint( QPainter::Antialiasing, false );
painter->setPen( pen );
painter->setBrush( Qt::NoBrush );
painter->drawRoundedRect( rect, 1, 1 );
painter->restore();
}
//______________________________________________________________________________
void Helper::renderFrame(
QPainter* painter, const QRect& rect,
const QColor& color, const QColor& outline, bool hasFocus ) const
{
painter->setRenderHint( QPainter::Antialiasing );
QRectF frameRect( rect.adjusted( 1, 1, -1, -1 ) );
qreal radius( frameRadius() );
// set pen
if( outline.isValid() )
{
if (hasFocus) {
painter->setPen( QPen( outline, 2 ) );
frameRect.adjust(0.5, 0.5, -0.5, -0.5);
}
else {
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::renderSquareFrame(
QPainter* painter, const QRect& rect,
QColor color, bool hasFocus ) const
{
painter->setPen( color );
painter->drawRect( rect.adjusted(1, 1, -2, -2) );
if (hasFocus) {
color.setAlphaF( 0.5 );
painter->setPen( color );
painter->drawRect( rect.adjusted(0, 0, -1, -1) );
}
}
//______________________________________________________________________________
void Helper::renderFlatFrame(
QPainter* painter, const QRect& rect,
const QColor& color, const QColor& outline, bool hasFocus ) const
{
painter->setRenderHint( QPainter::Antialiasing );
QRectF frameRect( rect.adjusted( 1, 1, -1, -1 ) );
qreal radius( frameRadius() );
// set pen
if( outline.isValid() )
{
if (hasFocus) {
painter->setPen( QPen( outline, 2 ) );
frameRect.adjust(0.5, 0.5, -0.5, -0.5);
}
else {
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 );
QPainterPath path;
path.setFillRule( Qt::WindingFill );
path.addRect( frameRect.adjusted(2 * radius, 0, 0, 0) );
path.addRoundedRect( frameRect.adjusted(0, 0, - 2 *radius, 0), radius, radius);
painter->drawPath( path.simplified() );
// 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.adjusted( 1, 1, -1, -1 ) );
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:
frameRect.adjust( 0, 1, 0, -1 );
painter->drawLine( frameRect.topRight(), frameRect.bottomRight() );
break;
case SideTop:
frameRect.adjust( 1, 0, -1, 0 );
painter->drawLine( frameRect.topLeft(), frameRect.topRight() );
break;
case SideRight:
frameRect.adjust( 0, 1, 0, -1 );
painter->drawLine( frameRect.topLeft(), frameRect.bottomLeft() );
break;
case SideBottom:
frameRect.adjust( 1, 0, -1, 0 );
painter->drawLine( frameRect.bottomLeft(), frameRect.bottomRight() );
break;
case AllSides:
{
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 );
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, bool mouseOver, bool active ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
// copy rect
QRectF frameRect( rect );
frameRect.adjust( 1, 1, -1, -1 );
qreal radius( frameRadius() );
if( outline.isValid() )
{
painter->setPen( QPen( outline, 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.darker( sunken ? 110 : (hasFocus|mouseOver) ? 85 : 100 ) );
//gradient.setColorAt( 1, color.darker( sunken ? 130 : (hasFocus|mouseOver) ? 95 : 110 ) );
if (!active) {
gradient.setColorAt( 0, color );
}
else if (sunken) {
gradient.setColorAt( 0, color );
}
else {
gradient.setColorAt( 0, mix(color, Qt::white, 0.07) );
gradient.setColorAt( 1, mix(color, Qt::black, 0.1) );
}
painter->setBrush( gradient );
} else painter->setBrush( Qt::NoBrush );
// render
painter->drawRoundedRect( frameRect, radius, radius );
if (!sunken && active && color.isValid()) {
painter->setPen(color.lighter(140));
painter->drawLine(frameRect.topLeft() + QPoint(3, 1), frameRect.topRight() + QPoint(-3, 1));
painter->setPen(outline.darker(114));
painter->drawLine(frameRect.bottomLeft() + QPointF(2.7, 0), frameRect.bottomRight() + QPointF(-2.7, 0));
}
}
//______________________________________________________________________________
void Helper::renderFlatButtonFrame(
QPainter* painter, const QRect& rect,
const QColor& color, const QColor& outline, const QColor& shadow,
bool hasFocus, bool sunken, bool mouseOver, bool active ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
// copy rect
QRectF frameRect( rect );
frameRect.adjust( 1, 1, -1, -1 );
qreal radius( frameRadius() );
if( outline.isValid() )
{
painter->setPen( QPen( outline, 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.darker( sunken ? 110 : (hasFocus|mouseOver) ? 85 : 100 ) );
//gradient.setColorAt( 1, color.darker( sunken ? 130 : (hasFocus|mouseOver) ? 95 : 110 ) );
if (!active) {
gradient.setColorAt( 0, color );
}
else if (sunken) {
gradient.setColorAt( 0, color);
}
else {
gradient.setColorAt( 0, mix(color, Qt::white, 0.07) );
gradient.setColorAt( 1, mix(color, Qt::black, 0.1) );
}
painter->setBrush( gradient );
} else painter->setBrush( Qt::NoBrush );
QPainterPath path;
path.setFillRule( Qt::WindingFill );
path.addRoundedRect( frameRect.adjusted(2*radius, 0, 0, 0), radius, radius );
path.addRect( frameRect.adjusted(0, 0, -2*radius, 0) );
painter->drawPath( path.simplified() );
if (!sunken && active) {
painter->setPen(color.lighter(140));
painter->drawLine(frameRect.topLeft() + QPoint(1, 1), frameRect.topRight() + QPoint(-3, 1));
painter->setPen(outline.darker(114));
painter->drawLine(frameRect.bottomLeft() + QPointF(0.7, 0), frameRect.bottomRight() + QPointF(-2.7, 0));
}
// 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 );
QRectF baseRect( rect );
if( sunken )
{
qreal radius( frameRadius() );
painter->setPen( Qt::NoPen );
painter->setBrush( color );
QRectF contentRect( baseRect.adjusted( 1, 1, -1, -1 ) );
painter->drawRoundedRect( contentRect, radius, radius );
} else {
qreal radius( frameRadius(-0.5) );
painter->setPen( color );
painter->setBrush( Qt::NoBrush );
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
qreal radius( frameRadius() );
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->save();
painter->setRenderHints( QPainter::Antialiasing );
painter->setBrush( Qt::NoBrush );
painter->setPen( outline );
painter->translate( baseRect.topLeft() );
painter->drawPath( path );
painter->restore();
return;
}
//______________________________________________________________________________
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->save();
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() );
}
painter->restore();
return;
}
//______________________________________________________________________________
void Helper::renderCheckBoxBackground(
QPainter* painter, const QRect& rect,
const QColor& color, const QColor &outline, bool sunken ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
// copy rect and radius
QRectF frameRect( rect );
frameRect.adjust( 3, 3, -3, -3 );
painter->setPen( outline );
painter->setBrush( color );
painter->drawRect( frameRect );
}
//______________________________________________________________________________
void Helper::renderCheckBox(
QPainter* painter, const QRect& rect,
const QColor& background, const QColor& outline, const QColor& tickColor,
bool sunken, CheckBoxState state, qreal animation, bool active ) const
{
// setup painter
painter->save();
painter->setRenderHint( QPainter::Antialiasing, true );
// copy rect and radius
QRectF frameRect( rect );
frameRect.adjust( 2, 2, -2, -2 );
qreal radius( frameRadius() );
// content
{
renderButtonFrame(painter, rect, background, outline, Qt::transparent, false, sunken, false, active);
}
// mark
if( state == CheckOn )
{
painter->save();
painter->setRenderHint(QPainter::Antialiasing);
painter->setBrush( Qt::NoBrush );
QPen pen( tickColor, 3 );
pen.setJoinStyle(Qt::MiterJoin);
painter->setPen( pen );
QRectF markerRect(frameRect);
QPainterPath path;
path.moveTo( markerRect.right(), markerRect.top() + markerRect.height() / 4 );
path.lineTo( markerRect.center().x(), markerRect.bottom() - markerRect.height() / 3.0 );
path.lineTo( markerRect.left() + markerRect.width() / 3.0, markerRect.center().y() );
painter->setClipRect(markerRect);
painter->drawPath( path );
painter->restore();
} else if( state == CheckPartial ) {
QPen pen( tickColor, 4 );
pen.setCapStyle( Qt::RoundCap );
painter->setPen( pen );
QRectF markerRect( frameRect.adjusted( 4, 4, -4, -4 ) );
painter->drawLine( markerRect.center() - QPoint(3, 0), markerRect.center() + QPoint(3, 0) );
} else if( state == CheckAnimated ) {
painter->save();
painter->setRenderHint(QPainter::Antialiasing);
painter->setBrush( Qt::NoBrush );
QPen pen( tickColor, 3 );
pen.setJoinStyle(Qt::MiterJoin);
painter->setPen( pen );
QRectF markerRect(frameRect);
QPainterPath path;
path.moveTo( markerRect.right(), markerRect.top() + markerRect.height() / 4 );
path.lineTo( markerRect.center().x(), markerRect.bottom() - markerRect.height() / 3.0 );
path.lineTo( markerRect.left() + markerRect.width() / 3.0, markerRect.center().y() );
path.translate(-markerRect.right(), -markerRect.top());
painter->setClipRect(markerRect.adjusted(1, 1, -1, -1));
painter->translate(markerRect.right(), markerRect.top());
painter->scale(animation, 0.5 + 0.5 * animation);
painter->drawPath( path );
painter->restore();
}
painter->restore();
}
//______________________________________________________________________________
void Helper::renderRadioButtonBackground( QPainter* painter, const QRect& rect, const QColor& color, const QColor& outline, 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( outline );
painter->setBrush( color );
painter->drawEllipse( frameRect );
}
//______________________________________________________________________________
void Helper::renderRadioButton(
QPainter* painter, const QRect& rect,
const QColor& background, const QColor& outline, const QColor& tickColor,
bool sunken, bool enabled, RadioButtonState state, qreal animation ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
// copy rect
QRectF frameRect( rect );
frameRect.adjust( 2, 2, -2, -2 );
// content
{
if (background.isValid()) {
if (enabled) {
QLinearGradient gradient( frameRect.topLeft(), frameRect.bottomLeft() );
if (sunken) {
gradient.setColorAt( 0, background);
}
else {
gradient.setColorAt( 0, mix(background, Qt::white, 0.07) );
gradient.setColorAt( 1, mix(background, Qt::black, 0.1) );
}
painter->setBrush( gradient );
}
else {
painter->setBrush( background );
}
} else {
painter->setBrush( Qt::NoBrush );
}
painter->setPen( QPen( outline, 1 ) );
QRectF contentRect( frameRect.adjusted( 0.5, 0.5, -0.5, -0.5 ) );
painter->drawEllipse( contentRect );
}
// mark
if( state == RadioOn )
{
painter->setBrush( tickColor );
painter->setPen( Qt::NoPen );
QRectF markerRect( frameRect.adjusted( 5, 5, -5, -5 ) );
painter->drawEllipse( markerRect );
} else if( state == RadioAnimated ) {
painter->setBrush( tickColor );
painter->setPen( Qt::NoPen );
QRectF markerRect( frameRect.adjusted( 5, 5, -5, -5 ) );
qreal remaining = markerRect.width() / 2.0 * (1.0 - animation);
markerRect.adjust(remaining, remaining, -remaining, -remaining);
painter->drawEllipse( markerRect );
}
}
//______________________________________________________________________________
void Helper::renderSliderGroove(
QPainter* painter, const QRect& rect,
const QColor& color ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
QRectF baseRect( rect );
qreal radius( 0.5*Metrics::Slider_GrooveThickness );
// content
if( color.isValid() )
{
painter->setPen( Qt::NoPen );
painter->setBrush( color );
painter->drawRoundedRect( baseRect, radius, radius );
}
return;
}
//______________________________________________________________________________
void Helper::renderDialGroove(
QPainter* painter, const QRect& rect,
const QColor& color ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
QRectF baseRect( rect );
// content
if( color.isValid() )
{
qreal penWidth( Metrics::Slider_GrooveThickness );
QRectF grooveRect( rect.adjusted( penWidth/2, penWidth/2, -penWidth/2, -penWidth/2 ) );
painter->setPen( QPen( color, penWidth ) );
painter->setBrush( Qt::NoBrush );
painter->drawEllipse( grooveRect );
}
return;
}
//______________________________________________________________________________
void Helper::renderDialContents(
QPainter* painter, const QRect& rect,
const QColor& color,
qreal first, qreal second ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
QRectF baseRect( rect );
// content
if( color.isValid() )
{
// setup groove rect
qreal penWidth( Metrics::Slider_GrooveThickness );
QRectF grooveRect( rect.adjusted( penWidth/2, penWidth/2, -penWidth/2, -penWidth/2 ) );
// setup angles
int angleStart( first * 180 * 16 / M_PI );
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 );
}
}
return;
}
//______________________________________________________________________________
void Helper::renderSliderHandle(QPainter* painter, const QRect& rect,
const QColor& color,
const QColor& outline,
const QColor& shadow,
bool sunken,
bool enabled,
Side ticks,
qreal angle) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
// copy rect
QRectF frameRect( rect );
frameRect.adjust( 1, 1, -1, -1 );
// set pen
if( outline.isValid() )
{
QPen pen(outline);
pen.setCapStyle( Qt::FlatCap );
pen.setJoinStyle( Qt::MiterJoin );
painter->setPen(pen);
frameRect.adjust( 0.5, 0.5, -0.5, -0.5 );
} else painter->setPen( Qt::NoPen );
// set brush
if( color.isValid() ) {
if (enabled) {
QLinearGradient gradient( frameRect.topLeft(), frameRect.bottomLeft() );
if (sunken) {
gradient.setColorAt( 0, color);
}
else {
gradient.setColorAt( 0, mix(color, Qt::white, 0.07) );
gradient.setColorAt( 1, mix(color, Qt::black, 0.1) );
}
painter->setBrush(gradient);
}
else {
painter->setBrush(color);
}
}
else painter->setBrush( Qt::NoBrush );
QRect r(rect.right() - rect.height(), rect.top(), rect.height(), rect.height());
r.adjust(4.5, 3.5, -2.5, -3.5);
QPainterPath circle;
circle.addEllipse(r);
circle.closeSubpath();
if (ticks & SideBottom) {
QPainterPath triangle(r.center());
triangle.moveTo(r.left() + 1.5, r.center().y() + 5.5);
triangle.lineTo(r.center().x() + 1, r.bottom() + 4.5);
triangle.lineTo(r.right() - 0.5, r.center().y() + 5.5);
triangle.closeSubpath();
circle = circle.united(triangle);
}
else if (ticks & SideTop) {
QPainterPath triangle(r.center());
triangle.moveTo(r.left() + 1.5, r.center().y() - 3.5);
triangle.lineTo(r.center().x() + 1, r.top() - 2.5);
triangle.lineTo(r.right() - 0.5, r.center().y() - 3.5);
triangle.closeSubpath();
circle = circle.united(triangle);
}
else if (ticks & SideLeft) {
QPainterPath triangle(r.center());
triangle.moveTo(r.center().x() - 3.5, r.top() + 1.5);
triangle.lineTo(r.left() - 2.5, r.center().y() + 1);
triangle.lineTo(r.center().x() - 3.5, r.bottom() - 0.5);
triangle.closeSubpath();
circle = circle.united(triangle);
}
else if (ticks & SideRight) {
QPainterPath triangle(r.center());
triangle.moveTo(r.center().x() + 3.5, r.top() + 1.5);
triangle.lineTo(r.right() + 2.5, r.center().y() + 1);
triangle.lineTo(r.center().x() + 3.5, r.bottom() - 0.5);
triangle.closeSubpath();
circle = circle.united(triangle);
}
QTransform rotate;
rotate.translate(frameRect.center().x(), frameRect.center().y());
rotate.rotate(angle);
rotate.translate(-frameRect.center().x(), -frameRect.center().y());
painter->drawPolygon(circle.toFillPolygon(rotate));
}
//______________________________________________________________________________
void Helper::renderProgressBarGroove(QPainter* painter, const QRect& rect,
const QColor& color , const QColor& outline) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
painter->setRenderHint( QPainter::SmoothPixmapTransform, true );
QRectF baseRect( rect );
qreal radius( 0.5 );
// content
if( color.isValid() )
{
painter->setPen( outline );
painter->setBrush( color );
painter->drawRoundedRect( baseRect.translated(0.5, 0.5), radius, radius );
}
return;
}
//______________________________________________________________________________
void Helper::renderProgressBarBusyContents(
QPainter* painter, const QRect& rect,
const QColor& color,
const QColor& outline,
bool horizontal,
bool reverse,
int progress
) const
{
Q_UNUSED(reverse);
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
QRectF baseRect( rect );
qreal radius( 0.25*Metrics::ProgressBar_Thickness );
QRectF contentRect;
if (horizontal) {
contentRect = QRect(baseRect.left(), baseRect.top(), Metrics::ProgressBar_BusyIndicatorSize, baseRect.height());
contentRect.translate(fabs(progress - 50) / 50.0 * (baseRect.width() - contentRect.width()), 0);
}
else {
contentRect = QRect(baseRect.left(), baseRect.top(), baseRect.width(), Metrics::ProgressBar_BusyIndicatorSize);
contentRect.translate(0, fabs(progress - 50) / 50.0 * (baseRect.height() - contentRect.height()));
}
painter->setBrush(color);
painter->setPen(outline);
painter->drawRoundedRect(contentRect.translated(0.5, 0.5), radius, radius);
return;
}
//______________________________________________________________________________
void Helper::renderScrollBarHandle(
QPainter* painter, const QRect& rect,
const QColor& color ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, true );
QRectF baseRect( rect );
qreal metric( rect.width() < rect.height() ? rect.width() : rect.height());
qreal radius( 0.5*metric );
// content
if( color.isValid() )
{
painter->setPen( Qt::NoPen );
painter->setBrush( color );
painter->drawRoundedRect( baseRect, radius, radius );
}
return;
}
//______________________________________________________________________________
void Helper::renderTabBarTab( QPainter* painter, const QRect& rect, const QColor& background, const QColor& color, const QColor& outline, Corners corners, bool renderFrame ) const
{
// setup painter
painter->setRenderHint( QPainter::Antialiasing, false );
QRectF frameRect( rect );
qreal adjustment;
// pen
if( outline.isValid() )
{
painter->setPen( outline );
frameRect.adjust( 1.0, 1.0, -1.0, -1.0 );
adjustment = 0;
painter->setBrush( background );
// render
painter->drawRect( frameRect );
} else if (!renderFrame) {
adjustment = 9;
}
painter->setPen( QPen( color, 6 ) );
switch (corners) {
case CornerTopLeft|CornerTopRight:
painter->drawLine(frameRect.left() + adjustment, frameRect.bottom(), frameRect.right() - adjustment, frameRect.bottom());
break;
case CornerBottomLeft|CornerBottomRight:
painter->drawLine(frameRect.left() + adjustment, frameRect.top(), frameRect.right() - adjustment, frameRect.top());
break;
case CornerTopLeft|CornerBottomLeft:
painter->drawLine(frameRect.right(), frameRect.top() + adjustment, frameRect.right(), frameRect.bottom() - adjustment);
break;
case CornerTopRight|CornerBottomRight:
painter->drawLine(frameRect.left(), frameRect.top() + adjustment, frameRect.left(), frameRect.bottom() - adjustment);
break;
}
}
//______________________________________________________________________________
// TODO blurry edges
void Helper::renderArrow( QPainter* painter, const QRect& rect, const QColor& color, ArrowOrientation orientation ) const
{
// define polygon
QPolygonF arrow;
switch( orientation )
{
case ArrowUp: arrow << QPointF( -4, 2 ) << QPointF( 0, -2 ) << QPointF( 4, 2 ); break;
case ArrowDown: arrow << QPointF( -4, -2 ) << QPointF( 0, 2 ) << QPointF( 4, -2 ); break;
case ArrowLeft: arrow << QPointF( 2, -4 ) << QPointF( -2, 0 ) << QPointF( 2, 4 ); break;
case ArrowRight: arrow << QPointF( -2, -4 ) << QPointF( 2, 0 ) << QPointF( -2, 4 ); break;
default: break;
}
QPen pen(color, 1.2);
pen.setCapStyle( Qt::FlatCap );
pen.setJoinStyle( Qt::MiterJoin );
painter->save();
painter->setRenderHints( QPainter::Antialiasing );
painter->translate( QRectF( rect ).center() );
painter->setBrush( color );
painter->setPen( pen );
painter->drawPolygon( arrow );
painter->restore();
return;
}
void Helper::renderSign(QPainter *painter, const QRect &rect, const QColor &color, bool orientation) const {
QPen pen( color, 2 );
pen.setCapStyle( Qt::FlatCap );
QRect r = rect.adjusted(1, 2, 0, 0);
painter->setPen(pen);
painter->drawLine(r.center() - QPointF(5, 0), r.center() + QPointF(5, 0));
if (orientation)
painter->drawLine(r.center() - QPointF(0, 5), r.center() + QPointF(0, 5));
}
//______________________________________________________________________________
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, false );
// initialize pen
QPen pen;
pen.setCapStyle( Qt::RoundCap );
pen.setJoinStyle( Qt::MiterJoin );
painter->setBrush( Qt::NoBrush );
pen.setColor( color );
pen.setCapStyle( Qt::RoundCap );
pen.setJoinStyle( Qt::MiterJoin );
pen.setWidthF( 2.0*qMax(1.0, 18.0/rect.width() ) );
painter->setPen( pen );
switch( buttonType )
{
case ButtonClose:
{
painter->setRenderHints( QPainter::Antialiasing, true );
painter->drawLine( QPointF( 5, 5 ), QPointF( 13, 13 ) );
painter->drawLine( 13, 5, 5, 13 );
break;
}
case ButtonMaximize:
{
painter->drawPolyline( QPolygonF()
<< QPointF( 4, 4 )
<< QPointF( 4, 14 )
<< QPointF( 14, 14 )
<< QPointF( 14, 4 ) );
break;
}
case ButtonMinimize:
{
painter->drawPolyline( QPolygonF()
<< QPointF( 4, 14 )
<< QPointF( 14, 14 ) );
break;
}
case ButtonRestore:
{
painter->setPen( pen );
QPolygonF rect = QPolygonF() << QPointF( 0, 0 ) << QPointF( 8, 0 ) << QPointF( 8, 8 ) << QPointF( 0, 8 );
painter->drawPolygon( rect.translated(7, 3) );
painter->drawPolygon( rect.translated(3, 7) );
break;
}
default: break;
}
painter->restore();
return;
}
//______________________________________________________________________________
bool Helper::isX11( void )
{
#if QT_VERSION >= 0x050000
static const bool s_isX11 = qApp->platformName()==QLatin1String("xcb");
return s_isX11;
#else
return false;
#endif
}
bool Helper::isWayland( void )
{
#if QT_VERSION >= 0x050000
static const bool s_isWayland = qApp->platformName().startsWith(QLatin1String("wayland"));
return s_isWayland;
#else
return false;
#endif
}
//______________________________________________________________________________
QRectF Helper::shadowRect( const QRectF& rect ) const
{ return rect; }
//______________________________________________________________________________
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;
}
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( void ) const
{
#if ADWAITA_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();
return false;
}
//____________________________________________________________________
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
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 ADWAITA_HAVE_X11
//____________________________________________________________________
xcb_connection_t* Helper::connection( void )
{
#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( void )
{
#if ADWAITA_HAVE_X11
if( isX11() )
{
// create compositing screen
QString atomName( QStringLiteral( "_NET_WM_CM_S%1" ).arg( QX11Info::appScreen() ) );
_compositingManagerAtom = createAtom( atomName );
}
#endif
}
//____________________________________________________________________
void Helper::setVariant(QWidget *widget, const QByteArray &variant)
{
if (isX11() && widget) { // && !widget->testAttribute(Qt::WA_)) {
static const char *_GTK_THEME_VARIANT="_GTK_THEME_VARIANT";
// Check if already set
QVariant var=widget->property("_GTK_THEME_VARIANT");
if (var.isValid() && var.toByteArray()==variant) {
return;
}
// Typedef's from xcb/xcb.h - copied so that there is no
// direct xcb dependency
typedef quint32 XcbAtom;
struct XcbInternAtomCookie {
unsigned int sequence;
};
struct XcbInternAtomReply {
quint8 response_type;
quint8 pad0;
quint16 sequence;
quint32 length;
XcbAtom atom;
};
typedef void * (*XcbConnectFn)(int, int);
typedef XcbInternAtomCookie (*XcbInternAtomFn)(void *, int, int, const char *);
typedef XcbInternAtomReply * (*XcbInternAtomReplyFn)(void *, XcbInternAtomCookie, int);
typedef int (*XcbChangePropertyFn)(void *, int, int, XcbAtom, XcbAtom, int, int, const void *);
typedef int (*XcbFlushFn)(void *);
static QLibrary *lib = 0;
static XcbAtom variantAtom = 0;
static XcbAtom utf8TypeAtom = 0;
static void *xcbConn = 0;
static XcbChangePropertyFn XcbChangePropertyFnPtr = 0;
static XcbFlushFn XcbFlushFnPtr = 0;
if (!lib) {
lib = new QLibrary("libxcb", qApp);
if (lib->load()) {
XcbConnectFn XcbConnectFnPtr=(XcbConnectFn)lib->resolve("xcb_connect");
XcbInternAtomFn XcbInternAtomFnPtr=(XcbInternAtomFn)lib->resolve("xcb_intern_atom");
XcbInternAtomReplyFn XcbInternAtomReplyFnPtr=(XcbInternAtomReplyFn)lib->resolve("xcb_intern_atom_reply");
XcbChangePropertyFnPtr=(XcbChangePropertyFn)lib->resolve("xcb_change_property");
XcbFlushFnPtr=(XcbFlushFn)lib->resolve("xcb_flush");
if (XcbConnectFnPtr && XcbInternAtomFnPtr && XcbInternAtomReplyFnPtr && XcbChangePropertyFnPtr && XcbFlushFnPtr) {
xcbConn=(*XcbConnectFnPtr)(0, 0);
if (xcbConn) {
XcbInternAtomReply *typeReply = (*XcbInternAtomReplyFnPtr)(xcbConn, (*XcbInternAtomFnPtr)(xcbConn, 0, 11, "UTF8_STRING"), 0);
if (typeReply) {
XcbInternAtomReply *gtkVarReply = (*XcbInternAtomReplyFnPtr)(xcbConn,
(*XcbInternAtomFnPtr)(xcbConn, 0, strlen(_GTK_THEME_VARIANT),
_GTK_THEME_VARIANT), 0);
if (gtkVarReply) {
utf8TypeAtom = typeReply->atom;
variantAtom = gtkVarReply->atom;
free(gtkVarReply);
}
free(typeReply);
}
}
}
}
}
if (0!=variantAtom) {
(*XcbChangePropertyFnPtr)(xcbConn, 0, widget->effectiveWinId(), variantAtom, utf8TypeAtom, 8,
variant.length(), (const void *)variant.constData());
(*XcbFlushFnPtr)(xcbConn);
widget->setProperty(_GTK_THEME_VARIANT, variant);
}
}
}
}