Restored QCDEStyle

Change-Id: Ic09381943ebb92ec680073301739fc494d02fe5a
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>

5 files changed, 382 insertions, 1 deletions

diff --git a/src/plugins/styles/motif/motif.json b/src/plugins/styles/motif/motif.json
index 8ac8c2a..ef553e0 100644
--- a/src/plugins/styles/motif/motif.json
+++ b/src/plugins/styles/motif/motif.json
@@ -1,3 +1,3 @@
 {
-    "Keys": [ "motif" ]
+    "Keys": [ "motif", "cde" ]
 }
diff --git a/src/plugins/styles/motif/motif.pro b/src/plugins/styles/motif/motif.pro
index d4a6079..01242ae 100644
--- a/src/plugins/styles/motif/motif.pro
+++ b/src/plugins/styles/motif/motif.pro
@@ -3,7 +3,9 @@ load(qt_plugin)
 
 QT = core gui widgets
 
+HEADERS += qcdestyle.h
 HEADERS += qmotifstyle.h
+SOURCES += qcdestyle.cpp
 SOURCES += qmotifstyle.cpp
 SOURCES += plugin.cpp
 
diff --git a/src/plugins/styles/motif/plugin.cpp b/src/plugins/styles/motif/plugin.cpp
index 711fac9..add505c 100644
--- a/src/plugins/styles/motif/plugin.cpp
+++ b/src/plugins/styles/motif/plugin.cpp
@@ -41,6 +41,7 @@
 
 #include <QStylePlugin>
 #include "qmotifstyle.h"
+#include "qcdestyle.h"
 
 QT_BEGIN_NAMESPACE
 
@@ -57,6 +58,8 @@ QStyle *QMotifStylePlugin::create(const QString &key)
 {
     if (key == "motif")
         return new QMotifStyle;
+    if (key == "cde")
+        return new QCDEStyle;
     return 0;
 }
 
diff --git a/src/plugins/styles/motif/qcdestyle.cpp b/src/plugins/styles/motif/qcdestyle.cpp
new file mode 100644
index 0000000..2c34510
--- /dev/null
+++ b/src/plugins/styles/motif/qcdestyle.cpp
@@ -0,0 +1,302 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qcdestyle.h"
+
+#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
+    \inmodule QtWidgets
+
+    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.
+
+    \image 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;
+}
+
+/*!
+    \reimp
+*/
+QIcon QCDEStyle::standardIcon(StandardPixmap standardIcon, const QStyleOption *opt,
+                                            const QWidget *widget) const
+{
+    return QMotifStyle::standardIcon(standardIcon, opt, widget);
+}
+
+QT_END_NAMESPACE
diff --git a/src/plugins/styles/motif/qcdestyle.h b/src/plugins/styles/motif/qcdestyle.h
new file mode 100644
index 0000000..097fb60
--- /dev/null
+++ b/src/plugins/styles/motif/qcdestyle.h
@@ -0,0 +1,74 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#ifndef QCDESTYLE_H
+#define QCDESTYLE_H
+
+#include "qmotifstyle.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class Q_WIDGETS_EXPORT QCDEStyle : public QMotifStyle
+{
+    Q_OBJECT
+public:
+    explicit QCDEStyle(bool useHighlightCols = false);
+    virtual ~QCDEStyle();
+
+    int pixelMetric(PixelMetric metric, const QStyleOption *option = 0,
+                    const QWidget *widget = 0) const;
+    void drawControl(ControlElement element, const QStyleOption *opt, QPainter *p,
+                     const QWidget *w = 0) const;
+    void drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, QPainter *p,
+                       const QWidget *w = 0) const;
+    QPalette standardPalette() const;
+    QIcon standardIcon(StandardPixmap standardIcon, const QStyleOption *opt = 0,
+                       const QWidget *widget = 0) const;
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QCDESTYLE_H