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Diffstat (limited to 'examples/openvg/star/starwidget.cpp')
-rw-r--r-- | examples/openvg/star/starwidget.cpp | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/examples/openvg/star/starwidget.cpp b/examples/openvg/star/starwidget.cpp deleted file mode 100644 index 93438edb1e..0000000000 --- a/examples/openvg/star/starwidget.cpp +++ /dev/null @@ -1,115 +0,0 @@ -/**************************************************************************** -** -** 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 QtOpenGL module 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 "starwidget.h" - -StarWidget::StarWidget(QWidget *parent) - : QWidget(parent) - , path(VG_INVALID_HANDLE) - , pen(Qt::red, 4.0, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin) - , brush(Qt::yellow) -{ - setMinimumSize(220, 250); - setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding); -} - -static VGubyte const starSegments[] = { - VG_MOVE_TO_ABS, - VG_LINE_TO_REL, - VG_LINE_TO_REL, - VG_LINE_TO_REL, - VG_LINE_TO_REL, - VG_CLOSE_PATH -}; -static VGfloat const starCoords[] = { - 110, 35, - 50, 160, - -130, -100, - 160, 0, - -130, 100 -}; - -void StarWidget::paintEvent(QPaintEvent *) -{ - QPainter painter; - painter.begin(this); - - // Make sure that we are using the OpenVG paint engine. - if (painter.paintEngine()->type() != QPaintEngine::OpenVG) { -#ifdef Q_WS_QWS - qWarning("Not using OpenVG: use the '-display' option to specify an OpenVG driver"); -#else - qWarning("Not using OpenVG: specify '-graphicssystem OpenVG'"); -#endif - return; - } - - // Select a pen and a brush for drawing the star. - painter.setPen(pen); - painter.setBrush(brush); - - // We want the star border to be anti-aliased. - painter.setRenderHints(QPainter::Antialiasing); - - // Flush the state changes to the OpenVG implementation - // and prepare to perform raw OpenVG calls. - painter.beginNativePainting(); - - // Cache the path if we haven't already or if the path has - // become invalid because the window's context has changed. - if (path == VG_INVALID_HANDLE || !vgGetPathCapabilities(path)) { - path = vgCreatePath(VG_PATH_FORMAT_STANDARD, - VG_PATH_DATATYPE_F, - 1.0f, // scale - 0.0f, // bias - 6, // segmentCapacityHint - 10, // coordCapacityHint - VG_PATH_CAPABILITY_ALL); - vgAppendPathData(path, sizeof(starSegments), starSegments, starCoords); - } - - // Draw the star directly using the OpenVG API. - vgDrawPath(path, VG_FILL_PATH | VG_STROKE_PATH); - - // Restore normal QPainter operations. - painter.endNativePainting(); - - painter.end(); -} |