diff options
Diffstat (limited to 'examples/qws/svgalib/svgalibpaintengine.cpp')
| -rw-r--r-- | examples/qws/svgalib/svgalibpaintengine.cpp | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/examples/qws/svgalib/svgalibpaintengine.cpp b/examples/qws/svgalib/svgalibpaintengine.cpp deleted file mode 100644 index 1f109f585c..0000000000 --- a/examples/qws/svgalib/svgalibpaintengine.cpp +++ /dev/null @@ -1,190 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** You may use this file under the terms of the BSD license as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor -** the names of its contributors may be used to endorse or promote -** products derived from this software without specific prior written -** permission. -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "svgalibpaintengine.h" - -#include <QColor> -#include <vga.h> -#include <vgagl.h> - -SvgalibPaintEngine::SvgalibPaintEngine(QPaintDevice *device) - : QRasterPaintEngine(device) -{ -} - -SvgalibPaintEngine::~SvgalibPaintEngine() -{ -} - -//! [0] -bool SvgalibPaintEngine::begin(QPaintDevice *dev) -{ - device = dev; - pen = Qt::NoPen; - simplePen = true; - brush = Qt::NoBrush; - simpleBrush = true; - matrix = QTransform(); - simpleMatrix = true; - setClip(QRect(0, 0, device->width(), device->height())); - opaque = true; - aliased = true; - sourceOver = true; - - return QRasterPaintEngine::begin(dev); -} -//! [0] - -//! [1] -bool SvgalibPaintEngine::end() -{ - gl_setclippingwindow(0, 0, device->width() - 1, device->height() - 1); - return QRasterPaintEngine::end(); -} -//! [1] - -//! [2] -void SvgalibPaintEngine::updateState() -{ - QRasterPaintEngineState *s = state(); - - if (s->dirty & DirtyTransform) { - matrix = s->matrix; - simpleMatrix = (matrix.m12() == 0 && matrix.m21() == 0); - } - - if (s->dirty & DirtyPen) { - pen = s->pen; - simplePen = (pen.width() == 0 || pen.widthF() <= 1) - && (pen.style() == Qt::NoPen || pen.style() == Qt::SolidLine) - && (pen.color().alpha() == 255); - } - - if (s->dirty & DirtyBrush) { - brush = s->brush; - simpleBrush = (brush.style() == Qt::SolidPattern - || brush.style() == Qt::NoBrush) - && (brush.color().alpha() == 255); - } - - if (s->dirty & DirtyClipRegion) - setClip(s->clipRegion); - - if (s->dirty & DirtyClipEnabled) { - clipEnabled = s->isClipEnabled(); - updateClip(); - } - - if (s->dirty & DirtyClipPath) { - setClip(QRegion()); - simpleClip = false; - } - - if (s->dirty & DirtyCompositionMode) { - const QPainter::CompositionMode m = s->composition_mode; - sourceOver = (m == QPainter::CompositionMode_SourceOver); - } - - if (s->dirty & DirtyOpacity) - opaque = (s->opacity == 256); - - if (s->dirty & DirtyHints) - aliased = !(s->flags.antialiased); -} -//! [2] - -//! [3] -void SvgalibPaintEngine::setClip(const QRegion ®ion) -{ - if (region.isEmpty()) - clip = QRect(0, 0, device->width(), device->height()); - else - clip = matrix.map(region) & QRect(0, 0, device->width(), device->height()); - clipEnabled = true; - updateClip(); -} -//! [3] - -//! [4] -void SvgalibPaintEngine::updateClip() -{ - QRegion clipRegion = QRect(0, 0, device->width(), device->height()); - - if (!systemClip().isEmpty()) - clipRegion &= systemClip(); - if (clipEnabled) - clipRegion &= clip; - - simpleClip = (clipRegion.rects().size() <= 1); - - const QRect r = clipRegion.boundingRect(); - gl_setclippingwindow(r.left(), r.top(), - r.x() + r.width(), - r.y() + r.height()); -} -//! [4] - -//! [5] -void SvgalibPaintEngine::drawRects(const QRect *rects, int rectCount) -{ - const bool canAccelerate = simplePen && simpleBrush && simpleMatrix - && simpleClip && opaque && aliased - && sourceOver; - if (!canAccelerate) { - QRasterPaintEngine::drawRects(rects, rectCount); - return; - } - - for (int i = 0; i < rectCount; ++i) { - const QRect r = matrix.mapRect(rects[i]); - if (brush != Qt::NoBrush) { - gl_fillbox(r.left(), r.top(), r.width(), r.height(), - brush.color().rgba()); - } - if (pen != Qt::NoPen) { - const int c = pen.color().rgba(); - gl_hline(r.left(), r.top(), r.right(), c); - gl_hline(r.left(), r.bottom(), r.right(), c); - gl_line(r.left(), r.top(), r.left(), r.bottom(), c); - gl_line(r.right(), r.top(), r.right(), r.bottom(), c); - } - } -} -//! [5] |