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kwin/kcmkwin/kwindecoration/auroraepreview.cpp
Martin Gräßlin c9df18ab98 New decoration kcm: 
* Displays list with previews instead of a dropdown with just the name.
* Configuration is moved into an own dialog accessible via a configure button for each decoration
* Button configuration is moved into a dialog, by that the tabs are removed
* Aurorae themes are listed just like normal decorations
* GHNS support to download Aurorae themes
* Semi-live preview of changed: when configure dialog is closed the preview is updated
* About Dialog added for each decoration (needs updates in desktop files - the information is missing)

svn path=/trunk/KDE/kdebase/workspace/; revision=1077141
2010-01-19 13:44:22 +00:00

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2009 Martin Gräßlin <kde@martin-graesslin.com>
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, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "auroraepreview.h"
#include "themeconfig.h"
// Qt
#include <QFile>
#include <QFont>
#include <QPainter>
// KDE
#include <KGlobalSettings>
#include <KIcon>
#include <KLocale>
#include <KStandardDirs>
// Plasma
#include <Plasma/FrameSvg>
namespace KWin
{
AuroraePreview::AuroraePreview( const QString& name, const QString& packageName,
const QString& themeRoot, QObject* parent )
: QObject( parent )
, m_title( name )
{
m_svg = new Plasma::FrameSvg( this );
QString svgFile = themeRoot + "/decoration.svg";
if( QFile::exists( svgFile ) )
{
m_svg->setImagePath( svgFile );
}
else
{
m_svg->setImagePath( svgFile + 'z' );
}
m_svg->setEnabledBorders( Plasma::FrameSvg::AllBorders );
m_themeConfig = new Aurorae::ThemeConfig();
KConfig conf( "aurorae/themes/" + packageName + '/' + packageName + "rc", KConfig::FullConfig, "data" );
m_themeConfig->load( &conf );
initButtonFrame( "minimize", packageName );
initButtonFrame( "maximize", packageName );
initButtonFrame( "restore", packageName );
initButtonFrame( "close", packageName );
initButtonFrame( "alldesktops", packageName );
initButtonFrame( "keepabove", packageName );
initButtonFrame( "keepbelow", packageName );
initButtonFrame( "shade", packageName );
initButtonFrame( "help", packageName );
}
AuroraePreview::~AuroraePreview()
{
delete m_themeConfig;
}
void AuroraePreview::initButtonFrame( const QString &button, const QString &themeName )
{
QString file( "aurorae/themes/" + themeName + '/' + button + ".svg" );
QString path = KGlobal::dirs()->findResource( "data", file );
if( path.isEmpty() )
{
// let's look for svgz
file.append("z");
path = KGlobal::dirs()->findResource( "data", file );
}
if( !path.isEmpty() )
{
Plasma::FrameSvg *frame = new Plasma::FrameSvg( this );
frame->setImagePath( path );
frame->setCacheAllRenderedFrames( true );
frame->setEnabledBorders( Plasma::FrameSvg::NoBorder );
m_buttons.insert( button, frame );
}
}
QPixmap AuroraePreview::preview( const QSize& size, bool custom,
const QString& left, const QString& right ) const
{
QPixmap pixmap( size );
pixmap.fill( Qt::transparent );
QPainter painter( &pixmap );
painter.save();
paintDeco( &painter, false, pixmap.rect(), 5 + m_themeConfig->paddingLeft() + m_themeConfig->borderLeft(),
5, 5, 5 + m_themeConfig->paddingBottom() + m_themeConfig->borderBottom(),
custom, left, right );
painter.restore();
painter.save();
int activeLeft = 5;
int activeTop = 5 + m_themeConfig->paddingTop() + m_themeConfig->titleEdgeTop() +
m_themeConfig->titleEdgeBottom() + m_themeConfig->titleHeight();
int activeRight = 5 + m_themeConfig->paddingRight() + m_themeConfig->borderRight();
int activeBottom = 5;
paintDeco( &painter, true, pixmap.rect(), activeLeft, activeTop, activeRight, activeBottom,
custom, left, right );
painter.restore();
// paint title
painter.save();
QFont font = painter.font();
font.setWeight( QFont::Bold );
painter.setPen( m_themeConfig->activeTextColor() );
painter.setFont( font );
painter.drawText( QRect( pixmap.rect().topLeft() + QPoint( activeLeft, activeTop ),
pixmap.rect().bottomRight() - QPoint( activeRight, activeBottom ) ),
Qt::AlignCenter | Qt::TextWordWrap, m_title );
painter.restore();
return pixmap;
}
void AuroraePreview::paintDeco( QPainter *painter, bool active, const QRect &rect,
int leftMargin, int topMargin, int rightMargin, int bottomMargin,
bool custom, const QString& left, const QString& right ) const
{
m_svg->setElementPrefix( "decoration" );
if( !active && m_svg->hasElementPrefix("decoration-inactive") )
{
m_svg->setElementPrefix( "decoration-inactive" );
}
m_svg->resizeFrame( QSize( rect.width() - leftMargin - rightMargin, rect.height() - topMargin - bottomMargin ) );
m_svg->paintFrame( painter, rect.topLeft() + QPoint( leftMargin, topMargin ) );
int y = rect.top() + topMargin + m_themeConfig->paddingTop() + m_themeConfig->titleEdgeTop() + m_themeConfig->buttonMarginTop();
int x = rect.left() + leftMargin + m_themeConfig->paddingLeft() + m_themeConfig->titleEdgeLeft();
int buttonWidth = m_themeConfig->buttonWidth();
int buttonHeight = m_themeConfig->buttonHeight();
foreach( const QChar &character, custom ? left : m_themeConfig->defaultButtonsLeft() )
{
QString buttonName;
int width = buttonWidth;
if( character == '_' )
{
x += m_themeConfig->explicitButtonSpacer() + m_themeConfig->buttonSpacing();
continue;
}
else if( character == 'M' )
{
KIcon icon = KIcon( "xorg" );
int iconSize = qMin( m_themeConfig->buttonWidthMenu(), m_themeConfig->buttonHeight() );
QSize buttonSize( iconSize,iconSize );
painter->drawPixmap( QPoint( x, y ), icon.pixmap( buttonSize ) );
x += m_themeConfig->buttonWidthMenu();
}
else if( character == 'S' )
{
buttonName = "alldesktops";
width = m_themeConfig->buttonWidthAllDesktops();
}
else if( character == 'H' )
{
buttonName = "help";
width = m_themeConfig->buttonWidthHelp();
}
else if( character == 'I' )
{
buttonName = "minimize";
width = m_themeConfig->buttonWidthMinimize();
}
else if( character == 'A' )
{
buttonName = "restore";
if( !m_buttons.contains( buttonName ) )
{
buttonName = "maximize";
}
width = m_themeConfig->buttonWidthMaximizeRestore();
}
else if( character == 'X' )
{
buttonName = "close";
width = m_themeConfig->buttonWidthClose();
}
else if( character == 'F' )
{
buttonName = "keepabove";
width = m_themeConfig->buttonWidthKeepAbove();
}
else if( character == 'B' )
{
buttonName = "keepbelow";
width = m_themeConfig->buttonWidthKeepBelow();
}
else if( character == 'L' )
{
buttonName = "shade";
width = m_themeConfig->buttonWidthShade();
}
if( !buttonName.isEmpty() && m_buttons.contains( buttonName ) )
{
Plasma::FrameSvg *frame = m_buttons.value( buttonName );
frame->setElementPrefix( "active" );
if( !active && frame->hasElementPrefix( "inactive" ) )
{
frame->setElementPrefix( "inactive" );
}
frame->resizeFrame( QSize( width, buttonHeight ) );
frame->paintFrame( painter, QPoint( x, y ) );
x += width;
}
x += m_themeConfig->buttonSpacing();
}
if( !m_themeConfig->defaultButtonsLeft().isEmpty() )
{
x -= m_themeConfig->buttonSpacing();
}
int titleLeft = x;
x = rect.right() - rightMargin - m_themeConfig->paddingRight() - m_themeConfig->titleEdgeRight();
QString rightButtons;
foreach( const QChar &character, custom ? right : m_themeConfig->defaultButtonsRight() )
{
rightButtons.prepend(character);
}
foreach (const QChar &character, rightButtons)
{
QString buttonName;
int width = buttonWidth;
if( character == '_' )
{
x -= m_themeConfig->explicitButtonSpacer() + m_themeConfig->buttonSpacing();
continue;
}
else if( character == 'M' )
{
KIcon icon = KIcon( "xorg" );
QSize buttonSize( buttonWidth, buttonHeight );
x -= m_themeConfig->buttonWidthMenu();
painter->drawPixmap( QPoint( x, y ), icon.pixmap( buttonSize ) );
}
else if( character == 'S' )
{
buttonName = "alldesktops";
width = m_themeConfig->buttonWidthAllDesktops();
}
else if( character == 'H' )
{
buttonName = "help";
width = m_themeConfig->buttonWidthHelp();
}
else if( character == 'I' )
{
buttonName = "minimize";
width = m_themeConfig->buttonWidthMinimize();
}
else if( character == 'A' )
{
buttonName = "restore";
if( !m_buttons.contains( buttonName ) )
{
buttonName = "maximize";
}
width = m_themeConfig->buttonWidthMaximizeRestore();
}
else if( character == 'X' )
{
buttonName = "close";
width = m_themeConfig->buttonWidthClose();
}
else if( character == 'F' )
{
buttonName = "keepabove";
width = m_themeConfig->buttonWidthKeepAbove();
}
else if( character == 'B' )
{
buttonName = "keepbelow";
width = m_themeConfig->buttonWidthKeepBelow();
}
else if( character == 'L' )
{
buttonName = "shade";
width = m_themeConfig->buttonWidthShade();
}
if( !buttonName.isEmpty() && m_buttons.contains( buttonName ) )
{
Plasma::FrameSvg *frame = m_buttons.value( buttonName );
frame->setElementPrefix( "active" );
if( !active && frame->hasElementPrefix( "inactive" ) )
{
frame->setElementPrefix( "inactive" );
}
frame->resizeFrame( QSize( width, buttonHeight ) );
x -= width;
frame->paintFrame( painter, QPoint( x, y) );
}
x -= m_themeConfig->buttonSpacing();
}
if( !rightButtons.isEmpty() )
{
x += m_themeConfig->buttonSpacing();
}
int titleRight = x;
// draw text
y = rect.top() + topMargin + m_themeConfig->paddingTop() + m_themeConfig->titleEdgeTop();
QRectF titleRect( QPointF( titleLeft, y ), QPointF( titleRight, y + m_themeConfig->titleHeight() ) );
QString caption = i18n( "Active Window" );
if( !active )
{
caption = i18n( "Inactive Window" );
}
painter->setFont( KGlobalSettings::windowTitleFont() );
if( m_themeConfig->useTextShadow() )
{
// shadow code is inspired by Qt FAQ: How can I draw shadows behind text?
// see http://www.qtsoftware.com/developer/faqs/faq.2007-07-27.3052836051
painter->save();
if( active )
{
painter->setPen( m_themeConfig->activeTextShadowColor() );
}
else
{
painter->setPen( m_themeConfig->inactiveTextShadowColor() );
}
int dx = m_themeConfig->textShadowOffsetX();
int dy = m_themeConfig->textShadowOffsetY();
painter->setOpacity( 0.5 );
painter->drawText( titleRect.translated( dx, dy ),
m_themeConfig->alignment() | m_themeConfig->verticalAlignment() | Qt::TextSingleLine,
caption );
painter->setOpacity( 0.2 );
painter->drawText( titleRect.translated( dx+1, dy ),
m_themeConfig->alignment() | m_themeConfig->verticalAlignment() | Qt::TextSingleLine,
caption );
painter->drawText( titleRect.translated( dx-1, dy ),
m_themeConfig->alignment() | m_themeConfig->verticalAlignment() | Qt::TextSingleLine,
caption );
painter->drawText( titleRect.translated( dx, dy+1 ),
m_themeConfig->alignment() | m_themeConfig->verticalAlignment() | Qt::TextSingleLine,
caption );
painter->drawText( titleRect.translated( dx, dy-1 ),
m_themeConfig->alignment() | m_themeConfig->verticalAlignment() | Qt::TextSingleLine,
caption );
painter->restore();
painter->save();
}
if( active )
{
painter->setPen( m_themeConfig->activeTextColor() );
}
else
{
painter->setPen( m_themeConfig->inactiveTextColor() );
}
painter->drawText( titleRect,
m_themeConfig->alignment() | m_themeConfig->verticalAlignment() | Qt::TextSingleLine,
caption );
painter->restore();
}
} // namespace KWin
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