diff options
Diffstat (limited to 'src/gui/embedded/qdecorationstyled_qws.cpp')
| -rw-r--r-- | src/gui/embedded/qdecorationstyled_qws.cpp | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/src/gui/embedded/qdecorationstyled_qws.cpp b/src/gui/embedded/qdecorationstyled_qws.cpp new file mode 100644 index 0000000000..40da4c2583 --- /dev/null +++ b/src/gui/embedded/qdecorationstyled_qws.cpp @@ -0,0 +1,313 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <qapplication.h> +#include <qwidget.h> +#include <qpainter.h> +#include <qdrawutil.h> +#include "qdecorationstyled_qws.h" +#include "qstyle.h" +#include "qstyleoption.h" +#include "qpaintengine.h" + +QT_BEGIN_NAMESPACE + +#if !defined(QT_NO_QWS_DECORATION_STYLED) || defined(QT_PLUGIN) + +QDecorationStyled::QDecorationStyled() + : QDecorationDefault() +{ +} + +QDecorationStyled::~QDecorationStyled() +{ +} + +int QDecorationStyled::titleBarHeight(const QWidget *widget) +{ + QStyleOptionTitleBar opt; + opt.subControls = QStyle::SC_TitleBarLabel + | QStyle::SC_TitleBarSysMenu + | QStyle::SC_TitleBarNormalButton + | QStyle::SC_TitleBarContextHelpButton + | QStyle::SC_TitleBarMinButton + | QStyle::SC_TitleBarMaxButton + | QStyle::SC_TitleBarCloseButton; + opt.titleBarFlags = widget->windowFlags(); + opt.direction = QApplication::layoutDirection(); + opt.text = windowTitleFor(widget); + opt.icon = widget->windowIcon(); + opt.rect = widget->rect(); + + QStyle *style = QApplication::style(); + if (!style) + return 18; + + return style->pixelMetric(QStyle::PM_TitleBarHeight, &opt, 0); +} + +bool QDecorationStyled::paint(QPainter *painter, const QWidget *widget, int decorationRegion, + DecorationState state) +{ + if (decorationRegion == None) + return false; + + bool isActive = (widget == qApp->activeWindow()); + QPalette pal = qApp->palette(); + //ideally, the difference between Active and Inactive should be enough, so we shouldn't need to test this + if (!isActive) { + //pal.setCurrentColorGroup(QPalette::Disabled); //Can't do this either, because of palette limitations + //copied from Q3TitleBar: + pal.setColor(QPalette::Inactive, QPalette::Highlight, + pal.color(QPalette::Inactive, QPalette::Dark)); + pal.setColor(QPalette::Inactive, QPalette::Base, + pal.color(QPalette::Inactive, QPalette::Dark)); + pal.setColor(QPalette::Inactive, QPalette::HighlightedText, + pal.color(QPalette::Inactive, QPalette::Window)); + } + + Qt::WindowFlags flags = widget->windowFlags(); + bool hasBorder = !widget->isMaximized(); + bool hasTitle = flags & Qt::WindowTitleHint; + bool hasSysMenu = flags & Qt::WindowSystemMenuHint; + bool hasContextHelp = flags & Qt::WindowContextHelpButtonHint; + bool hasMinimize = flags & Qt::WindowMinimizeButtonHint; + bool hasMaximize = flags & Qt::WindowMaximizeButtonHint; + + bool paintAll = (DecorationRegion(decorationRegion) == All); + bool handled = false; + + QStyle *style = QApplication::style(); + + // In the case of a borderless title bar, the title bar must be expanded one + // borderWidth to the left, right and up. + bool noTitleBorder = style->styleHint(QStyle::SH_TitleBar_NoBorder, 0, widget); + int borderWidth = style->pixelMetric(QStyle::PM_MDIFrameWidth, 0, 0); + int titleHeight = titleBarHeight(widget) + (noTitleBorder ? borderWidth : 0); + int titleExtra = noTitleBorder ? borderWidth : 0; + + if ((paintAll || decorationRegion & Borders) && state == Normal && hasBorder) { + QRegion newClip = painter->clipRegion(); + if (hasTitle) { // reduce flicker + QRect rect(widget->rect()); + QRect r(rect.left() - titleExtra, rect.top() - titleHeight, + rect.width() + 2 * titleExtra, titleHeight); + newClip -= r; + } + if (!newClip.isEmpty()) { + QRect br = QDecoration::region(widget).boundingRect(); + painter->save(); + painter->setClipRegion(newClip); + + QStyleOptionFrame opt; + opt.palette = pal; + opt.rect = br; + opt.lineWidth = borderWidth; + + if (isActive) + opt.state |= QStyle::State_Active; + bool porterDuff = painter->paintEngine()->hasFeature(QPaintEngine::PorterDuff); + if (porterDuff) + painter->setCompositionMode(QPainter::CompositionMode_Source); + painter->fillRect(br, pal.window()); + if (porterDuff) + painter->setCompositionMode(QPainter::CompositionMode_SourceOver); + style->drawPrimitive(QStyle::PE_FrameWindow, &opt, painter, 0); + painter->restore(); + + decorationRegion &= (~Borders); + handled |= true; + } + } + + if (hasTitle) { + painter->save(); + + QStyleOptionTitleBar opt; + opt.subControls = (decorationRegion & Title + ? QStyle::SC_TitleBarLabel : QStyle::SubControl(0)) + | (decorationRegion & Menu + ? QStyle::SC_TitleBarSysMenu : QStyle::SubControl(0)) + | (decorationRegion & Help + ? QStyle::SC_TitleBarContextHelpButton : QStyle::SubControl(0)) + | (decorationRegion & Minimize + ? QStyle::SC_TitleBarMinButton : QStyle::SubControl(0)) + | (decorationRegion & Maximize + ? QStyle::SC_TitleBarMaxButton : QStyle::SubControl(0)) + | (decorationRegion & (Minimize | Maximize) + ? QStyle::SC_TitleBarNormalButton : QStyle::SubControl(0)) + | (decorationRegion & Close + ? QStyle::SC_TitleBarCloseButton : QStyle::SubControl(0)); + opt.titleBarFlags = widget->windowFlags(); + opt.titleBarState = widget->windowState(); + if (isActive) + opt.titleBarState |= QStyle::State_Active; + opt.text = windowTitleFor(widget); + opt.icon = widget->windowIcon(); + opt.palette = pal; + opt.rect = QRect(widget->rect().x() - titleExtra, -titleHeight, + widget->rect().width() + 2 * titleExtra, titleHeight); + + if (paintAll) { + painter->setClipRegion(opt.rect); + } else { + const QRect widgetRect = widget->rect(); + QRegion newClip = opt.rect; + if (!(decorationRegion & Menu) && hasSysMenu) + newClip -= region(widget, widgetRect, Menu); + if (!(decorationRegion & Title) && hasTitle) + newClip -= region(widget, widgetRect, Title); + if (!(decorationRegion & Help) && hasContextHelp) + newClip -= region(widget, widgetRect, Help); + if (!(decorationRegion & Minimize) && hasMinimize) + newClip -= region(widget, widgetRect, Minimize); + if (!(decorationRegion & Maximize) && hasMaximize) + newClip -= region(widget, widgetRect, Maximize); + if (!(decorationRegion & (Minimize | Maximize)) && (hasMaximize | hasMinimize)) + newClip -= region(widget, widgetRect, Normal); + if (!(decorationRegion & Close)) + newClip -= region(widget, widgetRect, Close); + painter->setClipRegion(newClip); + } + + if (state == Pressed) + opt.activeSubControls = opt.subControls; + + style->drawComplexControl(QStyle::CC_TitleBar, &opt, painter, 0); + painter->restore(); + + decorationRegion &= ~(Title | Menu | Help | Normalize | Minimize | Maximize | Close); + handled |= true; + } + + return handled; +} + +QRegion QDecorationStyled::region(const QWidget *widget, const QRect &rect, int decorationRegion) +{ + QStyle *style = QApplication::style(); + + // In the case of a borderless title bar, the title bar must be expanded one + // borderWidth to the left, right and up. + bool noTitleBorder = style->styleHint(QStyle::SH_TitleBar_NoBorder, 0, widget); + int borderWidth = style->pixelMetric(QStyle::PM_MDIFrameWidth, 0, 0); + int titleHeight = titleBarHeight(widget) + (noTitleBorder ? borderWidth : 0); + int titleExtra = noTitleBorder ? borderWidth : 0; + + QRect inside = QRect(rect.x() - titleExtra, rect.top() - titleHeight, + rect.width() + 2 * titleExtra, titleHeight); + + Qt::WindowFlags flags = widget->windowFlags(); + bool hasSysMenu = flags & Qt::WindowSystemMenuHint; + bool hasContextHelp = flags & Qt::WindowContextHelpButtonHint; + bool hasMinimize = flags & Qt::WindowMinimizeButtonHint; + bool hasMaximize = flags & Qt::WindowMaximizeButtonHint; + + QStyleOptionTitleBar opt; + opt.subControls = QStyle::SC_TitleBarLabel + | QStyle::SC_TitleBarSysMenu + | QStyle::SC_TitleBarNormalButton + | QStyle::SC_TitleBarMinButton + | QStyle::SC_TitleBarMaxButton + | QStyle::SC_TitleBarCloseButton; + opt.titleBarFlags = widget->windowFlags(); + opt.direction = QApplication::layoutDirection(); + opt.text = windowTitleFor(widget); + opt.icon = widget->windowIcon(); + opt.rect = inside; + + QRegion region; + switch (decorationRegion) { + case Title: + region = style->subControlRect(QStyle::CC_TitleBar, &opt, + QStyle::SC_TitleBarLabel, 0); + break; + case Menu: + if (hasSysMenu) + region = style->subControlRect(QStyle::CC_TitleBar, &opt, + QStyle::SC_TitleBarSysMenu, 0); + break; + case Help: + if (hasContextHelp) + region = style->subControlRect(QStyle::CC_TitleBar, &opt, + QStyle::SC_TitleBarContextHelpButton, + 0); + break; + case Normalize: + if (hasMaximize | hasMinimize) + region = style->subControlRect(QStyle::CC_TitleBar, &opt, + QStyle::SC_TitleBarNormalButton, + 0); + break; + case Minimize: + if (hasMinimize) + region = style->subControlRect(QStyle::CC_TitleBar, &opt, + QStyle::SC_TitleBarMinButton, + 0); + break; + case Maximize: + if (hasMaximize) + region = style->subControlRect(QStyle::CC_TitleBar, &opt, + QStyle::SC_TitleBarMaxButton, + 0); + break; + case Close: + region = style->subControlRect(QStyle::CC_TitleBar, &opt, + QStyle::SC_TitleBarCloseButton, 0); + break; + + default: + region = QDecorationDefault::region(widget, rect, decorationRegion); + } + + opt.rect = QRect(rect.x() - titleExtra, rect.top() - titleHeight, + rect.width() + 2 * titleExtra, + rect.height() + titleHeight + titleExtra); + + QStyleHintReturnMask mask; + style->styleHint(QStyle::SH_WindowFrame_Mask, &opt, 0, &mask); + + return (mask.region.isEmpty() ? region : (region & mask.region)); +} + +#endif // QT_NO_QWS_DECORATION_STYLED + +QT_END_NAMESPACE |