Long live Qt 4.5!

1 files changed, 185 insertions, 0 deletions

diff --git a/src/gui/painting/qcolormap_qws.cpp b/src/gui/painting/qcolormap_qws.cpp
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+++ b/src/gui/painting/qcolormap_qws.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qcolormap.h"
+#include "qcolor.h"
+#include "qpaintdevice.h"
+#include "qscreen_qws.h"
+#include "qwsdisplay_qws.h"
+
+QT_BEGIN_NAMESPACE
+
+class QColormapPrivate
+{
+public:
+    inline QColormapPrivate()
+        : ref(1), mode(QColormap::Direct), depth(0), numcolors(0)
+    { }
+
+    QAtomicInt ref;
+
+    QColormap::Mode mode;
+    int depth;
+    int numcolors;
+};
+
+static QColormapPrivate *screenMap = 0;
+
+void QColormap::initialize()
+{
+    screenMap = new QColormapPrivate;
+
+    screenMap->depth = QPaintDevice::qwsDisplay()->depth();
+    if (screenMap->depth < 8) {
+        screenMap->mode = QColormap::Indexed;
+        screenMap->numcolors = 256;
+    } else {
+        screenMap->mode = QColormap::Direct;
+        screenMap->numcolors = -1;
+    }
+}
+
+void QColormap::cleanup()
+{
+    delete screenMap;
+    screenMap = 0;
+}
+
+QColormap QColormap::instance(int /*screen*/)
+{
+    return QColormap();
+}
+
+QColormap::QColormap()
+    : d(screenMap)
+{ d->ref.ref(); }
+
+QColormap::QColormap(const QColormap &colormap)
+    :d (colormap.d)
+{ d->ref.ref(); }
+
+QColormap::~QColormap()
+{
+    if (!d->ref.deref())
+        delete d;
+}
+
+QColormap::Mode QColormap::mode() const
+{ return d->mode; }
+
+
+int QColormap::depth() const
+{ return d->depth; }
+
+
+int QColormap::size() const
+{
+    return d->numcolors;
+}
+
+uint QColormap::pixel(const QColor &color) const
+{
+    QRgb rgb = color.rgba();
+    if (d->mode == QColormap::Direct) {
+        switch(d->depth) {
+        case 16:
+            return qt_convRgbTo16(rgb);
+        case 24:
+        case 32:
+        {
+            const int r = qRed(rgb);
+            const int g = qGreen(rgb);
+            const int b = qBlue(rgb);
+            const int red_shift = 16;
+            const int green_shift = 8;
+            const int red_mask   = 0xff0000;
+            const int green_mask = 0x00ff00;
+            const int blue_mask  = 0x0000ff;
+            const int tg = g << green_shift;
+#ifdef QT_QWS_DEPTH_32_BGR
+            if (qt_screen->pixelType() == QScreen::BGRPixel) {
+                const int tb = b << red_shift;
+                return 0xff000000 | (r & blue_mask) | (tg & green_mask) | (tb & red_mask);
+            }
+#endif
+            const int tr = r << red_shift;
+            return 0xff000000 | (b & blue_mask) | (tg & green_mask) | (tr & red_mask);
+        }
+        }
+    }
+    return qt_screen->alloc(qRed(rgb), qGreen(rgb), qBlue(rgb));
+}
+
+const QColor QColormap::colorAt(uint pixel) const
+{
+    if (d->mode == Direct) {
+        if (d->depth == 16) {
+            pixel = qt_conv16ToRgb(pixel);
+        }
+        const int red_shift = 16;
+        const int green_shift = 8;
+        const int red_mask   = 0xff0000;
+        const int green_mask = 0x00ff00;
+        const int blue_mask  = 0x0000ff;
+#ifdef QT_QWS_DEPTH_32_BGR
+        if (qt_screen->pixelType() == QScreen::BGRPixel) {
+            return QColor((pixel & blue_mask),
+                          (pixel & green_mask) >> green_shift,
+                          (pixel & red_mask) >> red_shift);
+        }
+#endif
+        return QColor((pixel & red_mask) >> red_shift,
+                      (pixel & green_mask) >> green_shift,
+                      (pixel & blue_mask));
+    }
+    Q_ASSERT_X(int(pixel) < qt_screen->numCols(), "QColormap::colorAt", "pixel out of bounds of palette");
+    return QColor(qt_screen->clut()[pixel]);
+}
+
+const QVector<QColor> QColormap::colormap() const
+{
+    return QVector<QColor>();
+}
+
+QColormap &QColormap::operator=(const QColormap &colormap)
+{ qAtomicAssign(d, colormap.d); return *this; }
+
+QT_END_NAMESPACE