342 lines
11 KiB
C++
342 lines
11 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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// nitrogenbutton.cpp
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// -------------------
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//
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// Copyright (c) 2009 Hugo Pereira Da Costa <hugo.pereira@free.fr>
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// Copyright (c) 2006, 2007 Riccardo Iaconelli <riccardo@kde.org>
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// Copyright (c) 2006, 2007 Casper Boemann <cbr@boemann.dk>
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//////////////////////////////////////////////////////////////////////////////
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#include <cmath>
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#include <QPainterPath>
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#include <QPainter>
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#include <QPen>
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#include <KColorUtils>
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#include <KColorScheme>
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#include <kcommondecoration.h>
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#include "nitrogenbutton.h"
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#include "nitrogenclient.h"
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#include "nitrogen.h"
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namespace Nitrogen
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{
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//_______________________________________________
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NitrogenButton::NitrogenButton(NitrogenClient &parent,
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const QString& tip, ButtonType type):
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KCommonDecorationButton((::ButtonType)type, &parent),
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client_(parent),
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helper_( parent.helper() ),
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type_(type),
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colorCacheInvalid_(true)
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{
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setAutoFillBackground(false);
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setAttribute(Qt::WA_NoSystemBackground);
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{
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unsigned int size( client_.configuration().buttonSize() );
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setFixedSize( size, size );
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}
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setCursor(Qt::ArrowCursor);
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setToolTip(tip);
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}
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//_______________________________________________
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NitrogenButton::~NitrogenButton()
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{}
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//declare function from Nitrogenclient.cpp
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QColor reduceContrast(const QColor &c0, const QColor &c1, double t);
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//_______________________________________________
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QColor NitrogenButton::buttonDetailColor(const QPalette &palette)
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{
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if (client_.isActive()) return palette.color(QPalette::Active, QPalette::ButtonText);
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else {
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if (colorCacheInvalid_)
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{
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QColor ab = palette.color(QPalette::Active, QPalette::Button);
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QColor af = palette.color(QPalette::Active, QPalette::ButtonText);
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QColor nb = palette.color(QPalette::Inactive, QPalette::Button);
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QColor nf = palette.color(QPalette::Inactive, QPalette::ButtonText);
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colorCacheInvalid_ = false;
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cachedButtonDetailColor_ = reduceContrast(nb, nf, qMax(qreal(2.5), KColorUtils::contrastRatio(ab, KColorUtils::mix(ab, af, 0.4))));
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}
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return cachedButtonDetailColor_;
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}
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}
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//___________________________________________________
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QSize NitrogenButton::sizeHint() const
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{
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unsigned int size( client_.configuration().buttonSize() );
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return QSize( size, size );
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}
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//___________________________________________________
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void NitrogenButton::enterEvent(QEvent *e)
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{
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KCommonDecorationButton::enterEvent(e);
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if (status_ != Nitrogen::Pressed) status_ = Nitrogen::Hovered;
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update();
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}
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//___________________________________________________
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void NitrogenButton::leaveEvent(QEvent *e)
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{
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KCommonDecorationButton::leaveEvent(e);
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status_ = Nitrogen::Normal;
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update();
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}
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//___________________________________________________
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void NitrogenButton::mousePressEvent(QMouseEvent *e)
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{
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status_ = Nitrogen::Pressed;
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update();
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KCommonDecorationButton::mousePressEvent(e);
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}
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//___________________________________________________
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void NitrogenButton::mouseReleaseEvent(QMouseEvent *e)
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{
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status_ = Nitrogen::Normal;
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update();
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KCommonDecorationButton::mouseReleaseEvent(e);
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}
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//___________________________________________________
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void NitrogenButton::paintEvent(QPaintEvent *event)
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{
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QPainter painter(this);
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painter.setClipRect(this->rect().intersected( event->rect() ) );
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QPalette palette = NitrogenButton::palette();
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if( client_.isActive() ) palette.setCurrentColorGroup(QPalette::Active);
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else palette.setCurrentColorGroup(QPalette::Inactive);
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client_.renderWindowBackground( &painter, rect(), this, palette );
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if( client_.isActive() && client_.configuration().drawTitleOutline() && !client_.isMaximized() )
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{ client_.renderWindowBorder( &painter, rect(), this, client_.backgroundPalette( this, palette ) ); }
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// draw dividing line
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painter.setRenderHints(QPainter::Antialiasing);
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QRect frame = client_.widget()->rect();
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int x = -this->geometry().x()+1;
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int w = frame.width()-2;
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const int titleHeight = client_.layoutMetric(KCommonDecoration::LM_TitleHeight);
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QColor color = palette.window().color();
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QColor light = helper_.calcLightColor( color );
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QColor dark = helper_.calcDarkColor( color );
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dark.setAlpha(120);
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if( client_.drawSeparator() )
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{ helper_.drawSeparator(&painter, QRect(x, titleHeight-1.5, w, 2), color, Qt::Horizontal); }
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// for menu button the application icon is used
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if (type_ == ButtonMenu)
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{
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const QPixmap& pixmap( client_.icon().pixmap( client_.configuration().iconScale() ) );
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double offset = 0.5*(width()-pixmap.width() );
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painter.drawPixmap(offset, offset-1, pixmap );
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return;
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}
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color = buttonDetailColor(palette);
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if(status_ == Nitrogen::Hovered || status_ == Nitrogen::Pressed)
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{
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if(type_ == ButtonClose) color = KColorScheme(palette.currentColorGroup()).foreground(KColorScheme::NegativeText).color();
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else color = KColorScheme(palette.currentColorGroup()).decoration(KColorScheme::HoverColor).color();
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}
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// translate buttons up if window maximized
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if(client_.isMaximized())
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{ painter.translate( 0, -1 ); }
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// button shape color
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QColor bt = palette.window().color();
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// draw button shape
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painter.drawPixmap(0, 0, helper_.windecoButton(bt, status_ == Nitrogen::Pressed, (21.0*client_.configuration().buttonSize())/22 ) );
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// draw glow on hover
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if( status_ == Nitrogen::Hovered )
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{ painter.drawPixmap(0, 0, helper_.windecoButtonGlow(color, (21.0*client_.configuration().buttonSize())/22)); }
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// draw button icon
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if (client_.isActive())
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{
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QLinearGradient lg = helper_.decoGradient( QRect( 4, 4, 13, 13 ), color);
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painter.setRenderHints(QPainter::Antialiasing);
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qreal width( 1.4 );
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painter.setBrush(Qt::NoBrush);
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painter.setPen(QPen(color, width, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
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drawIcon(&painter, palette, type_);
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} else {
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// outlined mode
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QPixmap pixmap(size());
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pixmap.fill(Qt::transparent);
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QPainter pp(&pixmap);
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pp.setRenderHints(QPainter::Antialiasing);
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pp.setBrush(Qt::NoBrush);
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pp.setPen(QPen(color, 3.0, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
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drawIcon(&pp, palette, type_);
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pp.setCompositionMode(QPainter::CompositionMode_DestinationOut);
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pp.setPen(QPen(color, 1.0, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
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drawIcon(&pp, palette, type_);
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painter.drawPixmap(QPoint(0,0), pixmap);
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}
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}
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//___________________________________________________
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void NitrogenButton::drawIcon(QPainter *painter, QPalette &palette, ButtonType &type)
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{
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painter->save();
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painter->setWindow( 0, 0, 22, 22 );
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QPen newPen = painter->pen();
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switch(type)
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{
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case ButtonSticky:
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if(isChecked()) {
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newPen.setColor(KColorScheme(palette.currentColorGroup()).decoration(KColorScheme::HoverColor).color());
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painter->setPen(newPen);
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}
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painter->drawPoint(QPointF(10.5,10.5));
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break;
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case ButtonHelp:
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painter->translate(1.5, 1.5);
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painter->drawArc(7,5,4,4,135*16, -180*16);
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painter->drawArc(9,8,4,4,135*16,45*16);
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painter->drawPoint(9,12);
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painter->translate(-1.5, -1.5);
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break;
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case ButtonMin:
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painter->drawLine(QPointF( 7.5, 9.5), QPointF(10.5,12.5));
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painter->drawLine(QPointF(10.5,12.5), QPointF(13.5, 9.5));
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break;
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case ButtonMax:
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switch(client_.maximizeMode())
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{
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case NitrogenClient::MaximizeRestore:
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case NitrogenClient::MaximizeVertical:
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case NitrogenClient::MaximizeHorizontal:
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painter->drawLine(QPointF( 7.5,11.5), QPointF(10.5, 8.5));
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painter->drawLine(QPointF(10.5, 8.5), QPointF(13.5,11.5));
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break;
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case NitrogenClient::MaximizeFull:
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{
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painter->translate(1.5, 1.5);
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QPoint points[4] = {QPoint(9, 6), QPoint(12, 9), QPoint(9, 12), QPoint(6, 9)};
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painter->drawPolygon(points, 4);
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painter->translate(-1.5, -1.5);
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break;
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}
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}
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break;
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case ButtonClose:
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painter->drawLine(QPointF( 7.5,7.5), QPointF(13.5,13.5));
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painter->drawLine(QPointF(13.5,7.5), QPointF( 7.5,13.5));
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break;
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case ButtonAbove:
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if(isChecked()) {
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QPen newPen = painter->pen();
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newPen.setColor(KColorScheme(palette.currentColorGroup()).decoration(KColorScheme::HoverColor).color());
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painter->setPen(newPen);
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}
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painter->drawLine(QPointF( 7.5,14), QPointF(10.5,11));
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painter->drawLine(QPointF(10.5,11), QPointF(13.5,14));
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painter->drawLine(QPointF( 7.5,10), QPointF(10.5, 7));
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painter->drawLine(QPointF(10.5, 7), QPointF(13.5,10));
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break;
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case ButtonBelow:
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if(isChecked()) {
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QPen newPen = painter->pen();
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newPen.setColor(KColorScheme(palette.currentColorGroup()).decoration(KColorScheme::HoverColor).color());
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painter->setPen(newPen);
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}
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painter->drawLine(QPointF( 7.5,11), QPointF(10.5,14));
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painter->drawLine(QPointF(10.5,14), QPointF(13.5,11));
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painter->drawLine(QPointF( 7.5, 7), QPointF(10.5,10));
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painter->drawLine(QPointF(10.5,10), QPointF(13.5, 7));
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break;
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case ButtonShade:
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if (!isChecked())
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{
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// shade button
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painter->drawLine(QPointF( 7.5, 7.5), QPointF(10.5,10.5));
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painter->drawLine(QPointF(10.5,10.5), QPointF(13.5, 7.5));
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painter->drawLine(QPointF( 7.5,13.0), QPointF(13.5,13.0));
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} else {
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// unshade button
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painter->drawLine(QPointF( 7.5,10.5), QPointF(10.5, 7.5));
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painter->drawLine(QPointF(10.5, 7.5), QPointF(13.5,10.5));
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painter->drawLine(QPointF( 7.5,13.0), QPointF(13.5,13.0));
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}
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break;
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default:
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break;
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}
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painter->restore();
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return;
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}
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}
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