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kwin/clients/nitrogen/nitrogenclient.cpp
Hugo Pereira Da Costa f7d9aab9f9 fixed border sizes; added extra pixel when compositing is enabled; fixed inconsistencies whith oxygen style 
svn path=/trunk/KDE/kdebase/workspace/; revision=1015139
2009-08-24 16:14:11 +00:00

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//////////////////////////////////////////////////////////////////////////////
// nitrogenclient.cpp
// -------------------
//
// Copyright (c) 2009 Hugo Pereira Da Costa <hugo.pereira@free.fr>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//////////////////////////////////////////////////////////////////////////////
#include <cassert>
#include <cmath>
#include <iostream>
#include <kdeversion.h>
#include <KGlobal>
#include <KLocale>
#include <KColorUtils>
#include <QPainter>
#include <QTextStream>
#include <QApplication>
#include "nitrogen.h"
#include "nitrogenbutton.h"
#include "nitrogenclient.h"
#include "nitrogenclient.moc"
#include "nitrogensizegrip.h"
using namespace std;
namespace Nitrogen
{
K_GLOBAL_STATIC_WITH_ARGS(NitrogenHelper, globalHelper, ("nitrogenDeco"))
//___________________________________________
NitrogenHelper *nitrogenHelper()
{ return globalHelper; }
//___________________________________________
static void oxkwincleanupBefore()
{
NitrogenHelper *h = globalHelper;
h->invalidateCaches();
}
//___________________________________________
void renderDot(QPainter *p, const QPointF &point, qreal diameter)
{
p->drawEllipse(QRectF(point.x()-diameter/2, point.y()-diameter/2, diameter, diameter));
}
//___________________________________________
NitrogenClient::NitrogenClient(KDecorationBridge *b, KDecorationFactory *f):
KCommonDecorationUnstable(b, f),
colorCacheInvalid_(true),
size_grip_( 0 ),
helper_(*globalHelper),
initialized_( false )
{ qAddPostRoutine(oxkwincleanupBefore); }
//___________________________________________
NitrogenClient::~NitrogenClient()
{
// delete sizegrip if any
if( hasSizeGrip() ) deleteSizeGrip();
}
//___________________________________________
QString NitrogenClient::visibleName() const
{ return i18n("nitrogen"); }
//___________________________________________
void NitrogenClient::init()
{
KCommonDecoration::init();
widget()->setAttribute(Qt::WA_NoSystemBackground );
widget()->setAttribute( Qt::WA_OpaquePaintEvent );
widget()->setAutoFillBackground( false );
initialized_ = true;
resetConfiguration();
}
//___________________________________________
bool NitrogenClient::isMaximized() const
{ return maximizeMode()==MaximizeFull && !options()->moveResizeMaximizedWindows(); }
//___________________________________________
bool NitrogenClient::decorationBehaviour(DecorationBehaviour behaviour) const
{
switch (behaviour)
{
case DB_MenuClose:
return true;
case DB_WindowMask:
return false;
default:
return KCommonDecoration::decorationBehaviour(behaviour);
}
}
//___________________________________________
int NitrogenClient::layoutMetric(LayoutMetric lm, bool respectWindowState, const KCommonDecorationButton *btn) const
{
bool maximized( isMaximized() );
int frameBorder( configuration().frameBorder() );
// used to increase hit area on the sides of the widget
int extraBorder = (maximized && compositingActive()) ? 0 : EXTENDED_HITAREA;
int buttonSize( configuration().buttonSize() );
switch (lm)
{
case LM_BorderLeft:
case LM_BorderRight:
case LM_BorderBottom:
{
int border( 0 );
if (respectWindowState && maximized) {
border = 0;
} else if( configuration().frameBorder() == 0 && isPreview() ) {
border = 1;
} else {
if( lm == LM_BorderBottom && frameBorder == NitrogenConfiguration::BorderTiny )
{
// for tiny border, the convention is to have a larger bottom area in order to
// make resizing easier
border = 4;
} else {
border = frameBorder;
}
}
return border + extraBorder;
}
case LM_TitleEdgeTop:
{
int border = 0;
if( !( respectWindowState && maximized ))
{ border = qMax( 3, frameBorder-2 ); }
return border + extraBorder;
}
case LM_TitleEdgeBottom:
{
return 0;
}
case LM_TitleEdgeLeft:
case LM_TitleEdgeRight:
{
int border = 0;
if( !(respectWindowState && maximized) )
{ border = 6; }
return border + extraBorder;
}
case LM_TitleBorderLeft:
case LM_TitleBorderRight:
return 5;
case LM_ButtonWidth:
case LM_ButtonHeight:
case LM_TitleHeight:
{
if (respectWindowState && isToolWindow()) {
return buttonSize;
} else {
return buttonSize;
}
}
case LM_ButtonSpacing:
return 1;
case LM_ButtonMarginTop:
return 0;
// outer margin for shadow/glow
case LM_OuterPaddingLeft:
case LM_OuterPaddingRight:
case LM_OuterPaddingTop:
case LM_OuterPaddingBottom:
if( NitrogenConfiguration::useCompiz() ) return 0;
else return SHADOW_WIDTH - extraBorder;
default:
return KCommonDecoration::layoutMetric(lm, respectWindowState, btn);
}
}
//_________________________________________________
int NitrogenClient::borderWidth( void ) const
{
return
layoutMetric( LM_BorderLeft )+
layoutMetric( LM_BorderRight );
}
//_________________________________________________
int NitrogenClient::borderHeight( void ) const
{
return
layoutMetric( LM_TitleHeight ) +
layoutMetric( LM_TitleEdgeTop ) +
layoutMetric( LM_TitleEdgeBottom ) +
layoutMetric( LM_BorderBottom );
}
//_________________________________________________________
KCommonDecorationButton *NitrogenClient::createButton(::ButtonType type)
{
switch (type) {
case MenuButton:
return new NitrogenButton(*this, i18n("Menu"), ButtonMenu);
case HelpButton:
return new NitrogenButton(*this, i18n("Help"), ButtonHelp);
case MinButton:
return new NitrogenButton(*this, i18n("Minimize"), ButtonMin);
case MaxButton:
return new NitrogenButton(*this, i18n("Maximize"), ButtonMax);
case CloseButton:
return new NitrogenButton(*this, i18n("Close"), ButtonClose);
case AboveButton:
return new NitrogenButton(*this, i18n("Keep Above Others"), ButtonAbove);
case BelowButton:
return new NitrogenButton(*this, i18n("Keep Below Others"), ButtonBelow);
case OnAllDesktopsButton:
return new NitrogenButton(*this, i18n("On All Desktops"), ButtonSticky);
case ShadeButton:
return new NitrogenButton(*this, i18n("Shade Button"), ButtonShade);
default:
return 0;
}
}
//_________________________________________________________
QColor reduceContrast(const QColor &c0, const QColor &c1, double t)
{
double s = KColorUtils::contrastRatio(c0, c1);
if (s < t)
return c1;
double l = 0.0, h = 1.0;
double x = s, a;
QColor r = c1;
for (int maxiter = 16; maxiter; --maxiter)
{
a = 0.5 * (l + h);
r = KColorUtils::mix(c0, c1, a);
x = KColorUtils::contrastRatio(c0, r);
if (fabs(x - t) < 0.01) break;
if (x > t) h = a;
else l = a;
}
return r;
}
//_________________________________________________________
QRegion NitrogenClient::calcMask( void ) const
{
if( isMaximized() )
{ return widget()->rect(); }
QRect frame( widget()->rect() );
// dimensions
int w=frame.width();
int h=frame.height();
// multipliers
int left = 1;
int right = 1;
int top = 1;
int bottom = 1;
// disable bottom corners when border frame is too small
if( configuration().frameBorder() <= NitrogenConfiguration::BorderTiny ) bottom = 0;
int sw = layoutMetric( LM_OuterPaddingLeft );
int sh = layoutMetric( LM_OuterPaddingTop );
w -= sw + layoutMetric( LM_OuterPaddingRight );
h -= sh + layoutMetric( LM_OuterPaddingBottom );
QRegion mask(sw + 5*left, sh + 0*top, w-5*(left+right), h-0*(top+bottom));
mask += QRegion(sw + 0*left, sh + 5*top, w-0*(left+right), h-5*(top+bottom));
mask += QRegion(sw + 2*left, sh + 2*top, w-2*(left+right), h-2*(top+bottom));
mask += QRegion(sw + 3*left, sh + 1*top, w-3*(left+right), h-1*(top+bottom));
mask += QRegion(sw + 1*left, sh + 3*top, w-1*(left+right), h-3*(top+bottom));
return mask;
}
//_________________________________________________________
QColor NitrogenClient::titlebarTextColor(const QPalette &palette)
{
if( !configuration().overwriteColors() )
{
return options()->color(ColorFont, isActive());
} else if (isActive()) {
return palette.color(QPalette::Active, QPalette::WindowText);
} else {
if(colorCacheInvalid_)
{
QColor ab = palette.color(QPalette::Active, QPalette::Window);
QColor af = palette.color(QPalette::Active, QPalette::WindowText);
QColor nb = palette.color(QPalette::Inactive, QPalette::Window);
QColor nf = palette.color(QPalette::Inactive, QPalette::WindowText);
colorCacheInvalid_ = false;
cachedTitlebarTextColor_ = reduceContrast(nb, nf, qMax(qreal(2.5), KColorUtils::contrastRatio(ab, KColorUtils::mix(ab, af, 0.4))));
}
return cachedTitlebarTextColor_;
}
}
//_________________________________________________________
void NitrogenClient::renderWindowBackground( QPainter* painter, const QRect& rect, const QWidget* widget, const QPalette& palette ) const
{
if( configuration().blendColor() == NitrogenConfiguration::NoBlending )
{
painter->fillRect( rect, backgroundPalette( widget, palette ).color( widget->window()->backgroundRole() ) );
} else {
int offset( configuration().buttonSize() - 22 );
offset += layoutMetric( LM_OuterPaddingBottom );
helper().renderWindowBackground(painter, rect, widget, backgroundPalette( widget, palette ), offset );
}
}
//_________________________________________________________
void NitrogenClient::activeChange( void )
{
// update size grip so that it gets the right color
if( hasSizeGrip() )
{
sizeGrip().updateBackgroundColor();
sizeGrip().update();
}
KCommonDecorationUnstable::activeChange();
}
//_________________________________________________________
QPalette NitrogenClient::backgroundPalette( const QWidget* widget, QPalette palette ) const
{
if( !configuration().overwriteColors() )
{ palette.setColor( widget->window()->backgroundRole(), options()->color( KDecorationDefines::ColorTitleBar, isActive() ) ); }
return palette;
}
//________________________________________________________________
void NitrogenClient::drawStripes(QPainter *p, QPalette &palette, const int start, const int end, const int topMargin)
{
QColor color( KDecoration::options()->color(ColorTitleBar) );
QLinearGradient scratchlg(QPoint(start,0), QPoint(end,0));
scratchlg.setColorAt(0.0, Qt::transparent);
scratchlg.setColorAt(0.05, helper().calcDarkColor(color) );
scratchlg.setColorAt(1.0, Qt::transparent);
QPen pen1(scratchlg, 0.5);
QLinearGradient scratchlg2(QPoint(start,0), QPoint(end,0));
scratchlg2.setColorAt(0.0, Qt::transparent);
scratchlg2.setColorAt(0.05, helper().calcLightColor(palette.color(QPalette::Window)) );
scratchlg2.setColorAt(1.0, Qt::transparent);
QPen pen2(scratchlg2, 0.5);
bool antialiasing = p->testRenderHint(QPainter::Antialiasing);
p->setRenderHint(QPainter::Antialiasing, false);
const int titleHeight = layoutMetric(LM_TitleHeight);
double voffset = 4.0*configuration().buttonSize()/22;
double scale = double(titleHeight-voffset)/4;
double base = titleHeight + topMargin;
for (int i = 0; i < 3; ++i)
{
// calculate offset for each stripe.
int offset = int(base - voffset) - int(scale)*(i+1);
p->setPen(pen1);
p->drawLine(QPoint(start, offset), QPoint(end, offset));
p->setPen(pen2);
p->drawLine(QPoint(start, offset+1), QPoint(end, offset+1));
}
p->setRenderHint(QPainter::Antialiasing, antialiasing);
}
//________________________________________________________________
void NitrogenClient::updateWindowShape()
{
if(isMaximized() || ( compositingActive() && !NitrogenConfiguration::useCompiz() ) )
{
clearMask();
} else {
setMask( calcMask() );
}
}
//___________________________________________
void NitrogenClient::resetConfiguration( void )
{
if( !initialized_ ) return;
configuration_ = NitrogenFactory::configuration( *this );
QTextStream( stdout ) << "NitrogenClient::resetConfiguration - useCompiz: " << NitrogenConfiguration::useCompiz() << endl;
// handle size grip
if( configuration_.drawSizeGrip() )
{
if( !hasSizeGrip() ) createSizeGrip();
} else if( hasSizeGrip() ) deleteSizeGrip();
}
//_________________________________________________________
void NitrogenClient::paintEvent( QPaintEvent* event )
{
// factory
if(!( initialized_ && NitrogenFactory::initialized() ) ) return;
// palette
QPalette palette = widget()->palette();
palette.setCurrentColorGroup( (isActive() ) ? QPalette::Active : QPalette::Inactive );
// painter
QPainter painter(widget());
painter.setClipRegion( event->region() );
// define frame
QRect frame = widget()->rect();
// base color
QColor color = ( configuration().overwriteColors() ) ?
palette.window().color() :
options()->color( ColorTitleBar, isActive());
// draw shadows
if( compositingActive() && !( NitrogenConfiguration::useCompiz() || isMaximized() ) )
{
shadowTiles(
color,KDecoration::options()->color(ColorTitleBar),
SHADOW_WIDTH, configuration().useOxygenShadows() && isActive() )->render( frame.adjusted( 4, 4, -4, -4),
&painter, TileSet::Ring);
}
// adjust frame
frame.adjust( SHADOW_WIDTH, SHADOW_WIDTH, -SHADOW_WIDTH, -SHADOW_WIDTH );
// adjust mask
if( (compositingActive() && !NitrogenConfiguration::useCompiz()) || isPreview() )
{
if( isMaximized() ) {
painter.setClipRect( frame );
} else {
int x, y, w, h;
frame.getRect(&x, &y, &w, &h);
// multipliers
int left = 1;
int right = 1;
int top = 1;
int bottom = 1;
// disable bottom corners when border frame is too small
if( configuration().frameBorder() < NitrogenConfiguration::BorderTiny ) bottom = 0;
QRegion mask( x+5*left, y+0*top, w-5*(left+right), h-0*(top+bottom));
mask += QRegion(x+0*left, y+5*top, w-0*(left+right), h-5*(top+bottom));
mask += QRegion(x+2*left, y+2*top, w-2*(left+right), h-2*(top+bottom));
mask += QRegion(x+3*left, y+1*top, w-3*(left+right), h-1*(top+bottom));
mask += QRegion(x+1*left, y+3*top, w-1*(left+right), h-3*(top+bottom));
painter.setClipRegion( mask );
}
}
// window background
renderWindowBackground( &painter, frame, widget(), palette );
// clipping
if( compositingActive() && !NitrogenConfiguration::useCompiz() ) painter.setClipping(false);
// in preview mode and when frame border is 0,
// one still draw a small rect around, unless kde is recent enough,
// useOxygenShadow is set to true,
// and copositing is active
// (that makes a lot of ifs)
if(
isPreview() && configuration().frameBorder() == 0 &&
( !compositingActive() || NitrogenConfiguration::useCompiz() ) )
{
painter.save();
painter.setBrush( Qt::NoBrush );
painter.setPen( QPen( helper().calcDarkColor( widget()->palette().window().color() ), 1 ) );
QPainterPath path;
QPoint first( frame.topLeft()+QPoint( 0, 6 ) );
path.moveTo( first );
path.quadTo( frame.topLeft(), frame.topLeft()+QPoint( 6, 0 ) );
path.lineTo( frame.topRight()-QPoint( 6, 0 ) );
path.quadTo( frame.topRight(), frame.topRight()+QPoint( 0, 6 ) );
path.lineTo( frame.bottomRight() );
path.lineTo( frame.bottomLeft() );
path.lineTo( first );
painter.drawPath( path );
painter.restore();
}
int extraBorder = ( isMaximized() && compositingActive() ) ? 0 : EXTENDED_HITAREA;
// dimensions
const int titleHeight = layoutMetric(LM_TitleHeight);
const int titleTop = layoutMetric(LM_TitleEdgeTop) + frame.top() - extraBorder;
const int titleEdgeLeft = layoutMetric(LM_TitleEdgeLeft);
const int marginLeft = layoutMetric(LM_TitleBorderLeft);
const int marginRight = layoutMetric(LM_TitleBorderRight);
const int titleLeft = frame.left() + titleEdgeLeft + buttonsLeftWidth() + marginLeft;
const int titleWidth = frame.width() -
titleEdgeLeft - layoutMetric(LM_TitleEdgeRight) -
buttonsLeftWidth() - buttonsRightWidth() -
marginLeft - marginRight;
// draw title text
painter.setPen( titlebarTextColor( backgroundPalette( widget(), palette ) ) );
painter.setFont( options()->font(isActive(), false) );
painter.drawText(titleLeft, titleTop-1, titleWidth, titleHeight, configuration().titleAlignment() | Qt::AlignVCenter, caption() );
painter.setRenderHint(QPainter::Antialiasing);
// adjust if there are shadows
if (compositingActive()) frame.adjust(-1,-1, 1, 1);
// dimensions
int x,y,w,h;
frame.getRect(&x, &y, &w, &h);
// separator
if( isActive() && configuration().drawSeparator() )
{ helper().drawSeparator(&painter, QRect(x, titleTop+titleHeight-1.5, w, 2), color, Qt::Horizontal); }
// draw stripes as indicator for active windows
if( isActive() && configuration().showStripes() )
{
Qt::Alignment align = configuration().titleAlignment();
if (widget()->layoutDirection() == Qt::RightToLeft)
{
if (align == Qt::AlignLeft) align = Qt::AlignRight;
else if (align == Qt::AlignRight) align = Qt::AlignLeft;
}
if (align & Qt::AlignLeft) {
int left = titleLeft + QFontMetrics(options()->font(isActive(), false)).width( caption() ) + 4;
int right = titleLeft + titleWidth;
drawStripes(&painter, palette, left, right, titleTop);
} else if (align & Qt::AlignRight) {
int left = titleLeft;
int right = titleLeft + titleWidth - QFontMetrics(options()->font(isActive(), false)).width( caption() ) - 4;
drawStripes(&painter, palette, right, left, titleTop);
} else if (align & Qt::AlignHCenter) {
int textWidth = QFontMetrics(options()->font(isActive(), false)).width( caption() );
int left = titleLeft;
int centerLeft = titleLeft + titleWidth/2 - textWidth/2 - 4;
int centerRight = titleLeft + titleWidth/2 + textWidth/2 + 4;
int right = titleLeft + titleWidth;
drawStripes(&painter, palette, centerLeft, left, titleTop);
drawStripes(&painter, palette, centerRight, right, titleTop);
}
}
// shadow and resize handles
if( !isMaximized() )
{
helper().drawFloatFrame(
&painter, frame, color, !compositingActive(), isActive(),
KDecoration::options()->color(ColorTitleBar),
configuration().frameBorder()
);
if( isResizable() && configuration().frameBorder() >= NitrogenConfiguration::BorderSmall )
{
// Draw the 3-dots resize handles
qreal cenY = h / 2 + x + 0.5;
qreal posX = w + y - 2.5;
painter.setPen(Qt::NoPen);
painter.setBrush(QColor(0, 0, 0, 66));
renderDot(&painter, QPointF(posX, cenY - 3), 1.8);
renderDot(&painter, QPointF(posX, cenY), 1.8);
renderDot(&painter, QPointF(posX, cenY + 3), 1.8);
}
// Draw the 3-dots resize handles
if(
isResizable() &&
configuration().frameBorder() >= NitrogenConfiguration::BorderTiny &&
!configuration().drawSizeGrip() )
{
painter.setPen(Qt::NoPen);
painter.setBrush(QColor(0, 0, 0, 66));
painter.translate(x + w-9, y + h-9);
renderDot(&painter, QPointF(2.5, 6.5), 1.8);
renderDot(&painter, QPointF(5.5, 5.5), 1.8);
renderDot(&painter, QPointF(6.5, 2.5), 1.8);
}
}
}
//________________________________________________________________
NitrogenConfiguration NitrogenClient::configuration( void ) const
{ return configuration_; }
//_________________________________________________________________
void NitrogenClient::createSizeGrip( void )
{
assert( !hasSizeGrip() );
if( (!isPreview()) && isResizable() && windowId() != 0 )
{ size_grip_ = new NitrogenSizeGrip( this ); }
}
//_________________________________________________________________
void NitrogenClient::deleteSizeGrip( void )
{
assert( hasSizeGrip() );
size_grip_->deleteLater();
size_grip_ = 0;
}
//_________________________________________________________________
TileSet *NitrogenClient::shadowTiles(const QColor& color, const QColor& glow, qreal size, bool active)
{
ShadowTilesOption opt;
opt.active = active;
opt.width = size;
opt.windowColor = color;
opt.glowColor = glow;
ShadowTilesOption currentOpt = active ? shadowTilesOption_ : glowTilesOption_;
bool optionChanged = true;
if (currentOpt.active == opt.active
&& currentOpt.width == opt.width
&& opt.windowColor == opt.windowColor
&& opt.glowColor == opt.glowColor)
optionChanged = false;
if (active && glowTiles_ && !optionChanged)
return glowTiles_;
else if (!active && shadowTiles_ && !optionChanged)
return shadowTiles_;
TileSet *tileSet = 0;
//---------------------------------------------------------------
// Create new glow/shadow tiles
QColor light = helper().calcLightColor( helper().backgroundTopColor(color) );
QColor dark = helper().calcDarkColor(helper().backgroundBottomColor(color));
QPixmap shadow = QPixmap( size*2, size*2 );
shadow.fill( Qt::transparent );
// draw the corner of the window - actually all 4 corners as one circle
QLinearGradient lg = QLinearGradient(0.0, size-4.5, 0.0, size+4.5);
if( configuration().frameBorder() <= NitrogenConfiguration::BorderTiny )
{
lg.setColorAt(0, helper().backgroundTopColor(color) );
lg.setColorAt(0.52, helper().backgroundTopColor(color));
lg.setColorAt(1.0, helper().backgroundBottomColor(color) );
} else {
lg.setColorAt(0.52, light);
lg.setColorAt(1.0, dark);
}
QPainter p( &shadow );
p.setRenderHint( QPainter::Antialiasing );
p.setPen( Qt::NoPen );
if (active)
{
//---------------------------------------------------------------
// Active shadow texture
QRadialGradient rg( size, size, size );
QColor c = color;
c.setAlpha( 255 ); rg.setColorAt( 4.4/size, c );
c.setAlpha( 220 ); rg.setColorAt( 4.5/size, c );
c.setAlpha( 180 ); rg.setColorAt( 5/size, c );
c.setAlpha( 25 ); rg.setColorAt( 5.5/size, c );
c.setAlpha( 0 ); rg.setColorAt( 6.5/size, c );
p.setBrush( rg );
p.drawRect( shadow.rect() );
rg = QRadialGradient( size, size, size );
c = color;
c.setAlpha( 255 ); rg.setColorAt( 4.4/size, c );
c = glow;
c.setAlpha( 0.58*255 ); rg.setColorAt( 4.5/size, c );
c.setAlpha( 0.43*255 ); rg.setColorAt( 5.5/size, c );
c.setAlpha( 0.30*255 ); rg.setColorAt( 6.5/size, c );
c.setAlpha( 0.22*255 ); rg.setColorAt( 7.5/size, c );
c.setAlpha( 0.15*255 ); rg.setColorAt( 8.5/size, c );
c.setAlpha( 0.08*255 ); rg.setColorAt( 11.5/size, c );
c.setAlpha( 0); rg.setColorAt( 14.5/size, c );
p.setRenderHint( QPainter::Antialiasing );
p.setBrush( rg );
p.drawRect( shadow.rect() );
p.setBrush( Qt::NoBrush );
p.setPen(QPen(lg, 0.8));
p.drawEllipse(QRectF(size-4, size-4, 8, 8));
p.end();
tileSet = new TileSet(shadow, size, size, 1, 1);
glowTilesOption_ = opt;
glowTiles_ = tileSet;
} else {
//---------------------------------------------------------------
// Inactive shadow texture
QRadialGradient rg = QRadialGradient( size, size+4, size );
QColor c = QColor( Qt::black );
c.setAlpha( 0.12*255 ); rg.setColorAt( 4.5/size, c );
c.setAlpha( 0.11*255 ); rg.setColorAt( 6.6/size, c );
c.setAlpha( 0.075*255 ); rg.setColorAt( 8.5/size, c );
c.setAlpha( 0.06*255 ); rg.setColorAt( 11.5/size, c );
c.setAlpha( 0.035*255 ); rg.setColorAt( 14.5/size, c );
c.setAlpha( 0.025*255 ); rg.setColorAt( 17.5/size, c );
c.setAlpha( 0.01*255 ); rg.setColorAt( 21.5/size, c );
c.setAlpha( 0.0*255 ); rg.setColorAt( 25.5/size, c );
p.setRenderHint( QPainter::Antialiasing );
p.setPen( Qt::NoPen );
p.setBrush( rg );
p.drawRect( shadow.rect() );
rg = QRadialGradient( size, size+2, size );
c = QColor( Qt::black );
c.setAlpha( 0.25*255 ); rg.setColorAt( 4.5/size, c );
c.setAlpha( 0.20*255 ); rg.setColorAt( 5.5/size, c );
c.setAlpha( 0.13*255 ); rg.setColorAt( 7.5/size, c );
c.setAlpha( 0.06*255 ); rg.setColorAt( 8.5/size, c );
c.setAlpha( 0.015*255 ); rg.setColorAt( 11.5/size, c );
c.setAlpha( 0.0*255 ); rg.setColorAt( 14.5/size, c );
p.setRenderHint( QPainter::Antialiasing );
p.setPen( Qt::NoPen );
p.setBrush( rg );
p.drawRect( shadow.rect() );
rg = QRadialGradient( size, size+0.2, size );
c = color;
c = QColor( Qt::black );
c.setAlpha( 0.35*255 ); rg.setColorAt( 0/size, c );
c.setAlpha( 0.32*255 ); rg.setColorAt( 4.5/size, c );
c.setAlpha( 0.22*255 ); rg.setColorAt( 5.0/size, c );
c.setAlpha( 0.03*255 ); rg.setColorAt( 5.5/size, c );
c.setAlpha( 0.0*255 ); rg.setColorAt( 6.5/size, c );
p.setRenderHint( QPainter::Antialiasing );
p.setPen( Qt::NoPen );
p.setBrush( rg );
p.drawRect( shadow.rect() );
rg = QRadialGradient( size, size, size );
c = color;
c.setAlpha( 255 ); rg.setColorAt( 4.0/size, c );
c.setAlpha( 0 ); rg.setColorAt( 4.01/size, c );
p.setRenderHint( QPainter::Antialiasing );
p.setPen( Qt::NoPen );
p.setBrush( rg );
p.drawRect( shadow.rect() );
// draw the corner of the window - actually all 4 corners as one circle
p.setBrush( Qt::NoBrush );
p.setPen(QPen(lg, 0.8));
p.drawEllipse(QRectF(size-4, size-4, 8, 8));
p.end();
tileSet = new TileSet(shadow, size, size, 1, 1);
shadowTilesOption_ = opt;
shadowTiles_ = tileSet;
}
return tileSet;
}
}
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