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authorLars Knoll <lars.knoll@nokia.com>2011-05-07 00:02:01 +0200
committerLars Knoll <lars.knoll@nokia.com>2011-05-07 00:02:01 +0200
commitf67b8df3ebdba2d398b9cce686b7c644adffff08 (patch)
tree062dd469f7cf8daa01a32d3e7b767b8fbdb7573a /src/widgets/styles/qcdestyle.cpp
parent32ce4fe9e6a94e77828e976776cf08da85254ff2 (diff)
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+/****************************************************************************
+**
+** 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 "qcdestyle.h"
+
+#if !defined(QT_NO_STYLE_CDE) || defined(QT_PLUGIN)
+
+#include "qmenu.h"
+#include "qapplication.h"
+#include "qpainter.h"
+#include "qdrawutil.h"
+#include "qpixmap.h"
+#include "qpalette.h"
+#include "qwidget.h"
+#include "qpushbutton.h"
+#include "qscrollbar.h"
+#include "qtabbar.h"
+#include "qtabwidget.h"
+#include "qlistview.h"
+#include "qsplitter.h"
+#include "qslider.h"
+#include "qcombobox.h"
+#include "qlineedit.h"
+#include "qprogressbar.h"
+#include "qimage.h"
+#include "qfocusframe.h"
+#include "qpainterpath.h"
+#include "qdebug.h"
+#include <limits.h>
+
+QT_BEGIN_NAMESPACE
+
+/*!
+ \class QCDEStyle
+ \brief The QCDEStyle class provides a CDE look and feel.
+
+ \ingroup appearance
+
+ This style provides a slightly improved Motif look similar to some
+ versions of the Common Desktop Environment (CDE). The main
+ differences are thinner frames and more modern radio buttons and
+ checkboxes. Together with a dark background and a bright
+ text/foreground color, the style looks quite attractive (at least
+ for Motif fans).
+
+ Note that most of the functions provided by QCDEStyle are
+ reimplementations of QStyle functions; see QStyle for their
+ documentation. QCDEStyle provides overloads for drawControl() and
+ drawPrimitive() which are documented here.
+
+ \img qcdestyle.png
+ \sa QWindowsXPStyle, QMacStyle, QWindowsStyle, QPlastiqueStyle, QMotifStyle
+*/
+
+/*!
+ Constructs a QCDEStyle.
+
+ If \a useHighlightCols is false (the default), then the style will
+ polish the application's color palette to emulate the Motif way of
+ highlighting, which is a simple inversion between the base and the
+ text color.
+*/
+QCDEStyle::QCDEStyle(bool useHighlightCols)
+ : QMotifStyle(useHighlightCols)
+{
+}
+
+/*!
+ Destroys the style.
+*/
+QCDEStyle::~QCDEStyle()
+{
+}
+
+
+/*!\reimp
+*/
+int QCDEStyle::pixelMetric(PixelMetric metric, const QStyleOption *option,
+ const QWidget *widget) const
+/*
+int QCDEStyle::pixelMetric(PixelMetric metric, const QStyleOption *option,
+ const QWidget *widget) const
+ */
+{
+ int ret = 0;
+
+ switch(metric) {
+ case PM_MenuBarPanelWidth:
+ case PM_DefaultFrameWidth:
+ case PM_FocusFrameVMargin:
+ case PM_FocusFrameHMargin:
+ case PM_MenuPanelWidth:
+ case PM_SpinBoxFrameWidth:
+ case PM_MenuBarVMargin:
+ case PM_MenuBarHMargin:
+ case PM_DockWidgetFrameWidth:
+ ret = 1;
+ break;
+ case PM_ScrollBarExtent:
+ ret = 13;
+ break;
+ default:
+ ret = QMotifStyle::pixelMetric(metric, option, widget);
+ break;
+ }
+ return ret;
+}
+
+/*!
+ \reimp
+*/
+void QCDEStyle::drawControl(ControlElement element, const QStyleOption *opt, QPainter *p,
+ const QWidget *widget) const
+{
+
+ switch(element) {
+ case CE_MenuBarItem: {
+ if (opt->state & State_Selected) // active item
+ qDrawShadePanel(p, opt->rect, opt->palette, true, 1,
+ &opt->palette.brush(QPalette::Button));
+ else // other item
+ p->fillRect(opt->rect, opt->palette.brush(QPalette::Button));
+ QCommonStyle::drawControl(element, opt, p, widget);
+ break; }
+ case CE_RubberBand: {
+ p->save();
+ p->setClipping(false);
+ QPainterPath path;
+ path.addRect(opt->rect);
+ path.addRect(opt->rect.adjusted(2, 2, -2, -2));
+ p->fillPath(path, opt->palette.color(QPalette::Active, QPalette::Text));
+ p->restore();
+ break; }
+ default:
+ QMotifStyle::drawControl(element, opt, p, widget);
+ break;
+ }
+}
+
+/*!
+ \reimp
+*/
+void QCDEStyle::drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, QPainter *p,
+ const QWidget *widget) const
+{
+ switch(pe) {
+ case PE_IndicatorCheckBox: {
+ bool down = opt->state & State_Sunken;
+ bool on = opt->state & State_On;
+ bool showUp = !(down ^ on);
+ QBrush fill = (showUp || (opt->state & State_NoChange)) ? opt->palette.brush(QPalette::Button) : opt->palette.brush(QPalette::Mid);
+ qDrawShadePanel(p, opt->rect, opt->palette, !showUp, pixelMetric(PM_DefaultFrameWidth), &opt->palette.brush(QPalette::Button));
+
+ if (on || (opt->state & State_NoChange)) {
+ QRect r = opt->rect;
+ QPolygon a(7 * 2);
+ int i, xx, yy;
+ xx = r.x() + 3;
+ yy = r.y() + 5;
+ if (opt->rect.width() <= 9) {
+ // When called from CE_MenuItem in QMotifStyle
+ xx -= 2;
+ yy -= 2;
+ }
+
+ for (i = 0; i < 3; i++) {
+ a.setPoint(2 * i, xx, yy);
+ a.setPoint(2 * i + 1, xx, yy + 2);
+ xx++; yy++;
+ }
+ yy -= 2;
+ for (i = 3; i < 7; i++) {
+ a.setPoint(2 * i, xx, yy);
+ a.setPoint(2 * i + 1, xx, yy + 2);
+ xx++; yy--;
+ }
+ if (opt->state & State_NoChange)
+ p->setPen(opt->palette.dark().color());
+ else
+ p->setPen(opt->palette.foreground().color());
+ p->drawPolyline(a);
+ }
+ if (!(opt->state & State_Enabled) && styleHint(SH_DitherDisabledText))
+ p->fillRect(opt->rect, QBrush(p->background().color(), Qt::Dense5Pattern));
+ } break;
+ case PE_IndicatorRadioButton:
+ {
+ QRect r = opt->rect;
+#define INTARRLEN(x) sizeof(x)/(sizeof(int)*2)
+ static const int pts1[] = { // up left lines
+ 1,9, 1,8, 0,7, 0,4, 1,3, 1,2, 2,1, 3,1, 4,0, 7,0, 8,1, 9,1 };
+ static const int pts4[] = { // bottom right lines
+ 2,10, 3,10, 4,11, 7,11, 8,10, 9,10, 10,9, 10,8, 11,7,
+ 11,4, 10,3, 10,2 };
+ static const int pts5[] = { // inner fill
+ 4,2, 7,2, 9,4, 9,7, 7,9, 4,9, 2,7, 2,4 };
+ bool down = opt->state & State_Sunken;
+ bool on = opt->state & State_On;
+ QPolygon a(INTARRLEN(pts1), pts1);
+
+ //center when rect is larger than indicator size
+ int xOffset = 0;
+ int yOffset = 0;
+ int indicatorWidth = pixelMetric(PM_ExclusiveIndicatorWidth);
+ int indicatorHeight = pixelMetric(PM_ExclusiveIndicatorWidth);
+ if (r.width() > indicatorWidth)
+ xOffset += (r.width() - indicatorWidth)/2;
+ if (r.height() > indicatorHeight)
+ yOffset += (r.height() - indicatorHeight)/2;
+ p->translate(xOffset, yOffset);
+
+ a.translate(r.x(), r.y());
+ QPen oldPen = p->pen();
+ QBrush oldBrush = p->brush();
+ p->setPen((down || on) ? opt->palette.dark().color() : opt->palette.light().color());
+ p->drawPolyline(a);
+ a.setPoints(INTARRLEN(pts4), pts4);
+ a.translate(r.x(), r.y());
+ p->setPen((down || on) ? opt->palette.light().color() : opt->palette.dark().color());
+ p->drawPolyline(a);
+ a.setPoints(INTARRLEN(pts5), pts5);
+ a.translate(r.x(), r.y());
+ QColor fillColor = on ? opt->palette.dark().color() : opt->palette.background().color();
+ p->setPen(fillColor);
+ p->setBrush(on ? opt->palette.brush(QPalette::Dark) :
+ opt->palette.brush(QPalette::Window));
+ p->drawPolygon(a);
+ if (!(opt->state & State_Enabled) && styleHint(SH_DitherDisabledText))
+ p->fillRect(opt->rect, QBrush(p->background().color(), Qt::Dense5Pattern));
+ p->setPen(oldPen);
+ p->setBrush(oldBrush);
+
+ p->translate(-xOffset, -yOffset);
+
+ } break;
+ default:
+ QMotifStyle::drawPrimitive(pe, opt, p, widget);
+ }
+}
+
+/*!\reimp*/
+QPalette QCDEStyle::standardPalette() const
+{
+ QColor background(0xb6, 0xb6, 0xcf);
+ QColor light = background.lighter();
+ QColor mid = background.darker(150);
+ QColor dark = background.darker();
+ QPalette palette(Qt::black, background, light, dark, mid, Qt::black, Qt::white);
+ palette.setBrush(QPalette::Disabled, QPalette::WindowText, dark);
+ palette.setBrush(QPalette::Disabled, QPalette::Text, dark);
+ palette.setBrush(QPalette::Disabled, QPalette::ButtonText, dark);
+ palette.setBrush(QPalette::Disabled, QPalette::Base, background);
+ return palette;
+}
+
+/*!
+ \internal
+*/
+QIcon QCDEStyle::standardIconImplementation(StandardPixmap standardIcon, const QStyleOption *opt,
+ const QWidget *widget) const
+{
+ return QMotifStyle::standardIconImplementation(standardIcon, opt, widget);
+}
+
+QT_END_NAMESPACE
+
+#endif