Long live Qt 4.5!

1 files changed, 229 insertions, 0 deletions

diff --git a/src/gui/painting/qemulationpaintengine.cpp b/src/gui/painting/qemulationpaintengine.cpp
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+++ b/src/gui/painting/qemulationpaintengine.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 <private/qemulationpaintengine_p.h>
+#include <private/qpainter_p.h>
+#include <private/qtextengine_p.h>
+#include <qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+QEmulationPaintEngine::QEmulationPaintEngine(QPaintEngineEx *engine)
+    : real_engine(engine)
+{
+    QPaintEngine::state = real_engine->state();
+}
+
+
+QPaintEngine::Type QEmulationPaintEngine::type() const
+{
+    return real_engine->type();
+}
+
+bool QEmulationPaintEngine::begin(QPaintDevice *)
+{
+    return true;
+}
+
+bool QEmulationPaintEngine::end()
+{
+    return true;
+}
+
+
+QPainterState *QEmulationPaintEngine::createState(QPainterState *orig) const
+{
+    return real_engine->createState(orig);
+}
+
+void QEmulationPaintEngine::fill(const QVectorPath &path, const QBrush &brush)
+{
+    QPainterState *s = state();
+
+    if (s->bgMode == Qt::OpaqueMode) {
+        Qt::BrushStyle style = brush.style();
+        if (style >= Qt::Dense1Pattern && style <= Qt::DiagCrossPattern)
+            real_engine->fill(path, s->bgBrush);
+    }
+
+    Qt::BrushStyle style = qbrush_style(brush);
+    if (style >= Qt::LinearGradientPattern && style <= Qt::ConicalGradientPattern) {
+        const QGradient *g = brush.gradient();
+
+        if (g->coordinateMode() > QGradient::LogicalMode) {
+            if (g->coordinateMode() == QGradient::StretchToDeviceMode) {
+                QBrush copy = brush;
+                QTransform mat = copy.transform();
+                mat.scale(real_engine->painter()->device()->width(), real_engine->painter()->device()->height());
+                copy.setTransform(mat);
+                real_engine->fill(path, copy);
+                return;
+            } else if (g->coordinateMode() == QGradient::ObjectBoundingMode) {
+                QBrush copy = brush;
+                QTransform mat = copy.transform();
+                QRealRect r = path.controlPointRect();
+                mat.translate(r.x1, r.y1);
+                mat.scale(r.x2 - r.x1, r.y2 - r.y1);
+                copy.setTransform(mat);
+                real_engine->fill(path, copy);
+                return;
+            }
+        }
+    }
+
+    real_engine->fill(path, brush);
+}
+
+void QEmulationPaintEngine::stroke(const QVectorPath &path, const QPen &pen)
+{
+    QPainterState *s = state();
+
+    if (s->bgMode == Qt::OpaqueMode && pen.style() > Qt::SolidLine) {
+        QPen bgPen = pen;
+        bgPen.setBrush(s->bgBrush);
+        bgPen.setStyle(Qt::SolidLine);
+        real_engine->stroke(path, bgPen);
+    }
+
+
+    QBrush brush = pen.brush();
+    Qt::BrushStyle style = qbrush_style(brush);
+    if (style >= Qt::LinearGradientPattern && style <= Qt::ConicalGradientPattern) {
+        const QGradient *g = brush.gradient();
+        if (g->coordinateMode() > QGradient::LogicalMode) {
+            QPaintEngineEx::stroke(path, pen);
+            return;
+        }
+    }
+
+    real_engine->stroke(path, pen);
+}
+
+void QEmulationPaintEngine::clip(const QVectorPath &path, Qt::ClipOperation op)
+{
+    real_engine->clip(path, op);
+}
+
+void QEmulationPaintEngine::drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr)
+{
+    if (state()->bgMode == Qt::OpaqueMode && pm.isQBitmap())
+        fillBGRect(r);
+    real_engine->drawPixmap(r, pm, sr);
+}
+
+void QEmulationPaintEngine::drawTextItem(const QPointF &p, const QTextItem &textItem)
+{
+    if (state()->bgMode == Qt::OpaqueMode) {
+        const QTextItemInt &ti = static_cast<const QTextItemInt &>(textItem);
+        QRectF rect(p.x(), p.y() - ti.ascent.toReal(), ti.width.toReal(), (ti.ascent + ti.descent + 1).toReal());
+        fillBGRect(rect);
+    }
+    real_engine->drawTextItem(p, textItem);
+}
+
+void QEmulationPaintEngine::drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &s)
+{
+    if (state()->bgMode == Qt::OpaqueMode && pixmap.isQBitmap())
+        fillBGRect(r);
+    real_engine->drawTiledPixmap(r, pixmap, s);
+}
+
+void QEmulationPaintEngine::drawImage(const QRectF &r, const QImage &pm, const QRectF &sr, Qt::ImageConversionFlags flags)
+{
+    real_engine->drawImage(r, pm, sr, flags);
+}
+
+void QEmulationPaintEngine::clipEnabledChanged()
+{
+    real_engine->clipEnabledChanged();
+}
+
+void QEmulationPaintEngine::penChanged()
+{
+    real_engine->penChanged();
+}
+
+void QEmulationPaintEngine::brushChanged()
+{
+    real_engine->brushChanged();
+}
+
+void QEmulationPaintEngine::brushOriginChanged()
+{
+    real_engine->brushOriginChanged();
+}
+
+void QEmulationPaintEngine::opacityChanged()
+{
+    real_engine->opacityChanged();
+}
+
+void QEmulationPaintEngine::compositionModeChanged()
+{
+    real_engine->compositionModeChanged();
+}
+
+void QEmulationPaintEngine::renderHintsChanged()
+{
+    real_engine->renderHintsChanged();
+}
+
+void QEmulationPaintEngine::transformChanged()
+{
+    real_engine->transformChanged();
+}
+
+void QEmulationPaintEngine::setState(QPainterState *s)
+{
+    QPaintEngine::state = s;
+    real_engine->setState(s);
+}
+
+
+void QEmulationPaintEngine::fillBGRect(const QRectF &r)
+{
+    qreal pts[] = { r.x(), r.y(), r.x() + r.width(), r.y(),
+                    r.x() + r.width(), r.y() + r.height(), r.x(), r.y() + r.height() };
+    QVectorPath vp(pts, 4, 0, QVectorPath::RectangleHint);
+    real_engine->fill(vp, state()->bgBrush);
+}
+
+QT_END_NAMESPACE