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Diffstat (limited to 'examples/painting/shared/arthurwidgets.cpp')
| -rw-r--r-- | examples/painting/shared/arthurwidgets.cpp | 355 |
1 files changed, 0 insertions, 355 deletions
diff --git a/examples/painting/shared/arthurwidgets.cpp b/examples/painting/shared/arthurwidgets.cpp deleted file mode 100644 index cf790fea3b..0000000000 --- a/examples/painting/shared/arthurwidgets.cpp +++ /dev/null @@ -1,355 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** 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 1.1, 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. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "arthurwidgets.h" -#include <QApplication> -#include <QPainter> -#include <QPainterPath> -#include <QPixmapCache> -#include <QtEvents> -#include <QTextDocument> -#include <QAbstractTextDocumentLayout> -#include <QFile> -#include <QTextBrowser> -#include <QBoxLayout> - -extern QPixmap cached(const QString &img); - -ArthurFrame::ArthurFrame(QWidget *parent) - : QWidget(parent) - , m_prefer_image(false) -{ -#ifdef QT_OPENGL_SUPPORT - glw = 0; - m_use_opengl = false; - QGLFormat f = QGLFormat::defaultFormat(); - f.setSampleBuffers(true); - f.setStencil(true); - f.setAlpha(true); - f.setAlphaBufferSize(8); - QGLFormat::setDefaultFormat(f); -#endif - m_document = 0; - m_show_doc = false; - - m_tile = QPixmap(128, 128); - m_tile.fill(Qt::white); - QPainter pt(&m_tile); - QColor color(230, 230, 230); - pt.fillRect(0, 0, 64, 64, color); - pt.fillRect(64, 64, 64, 64, color); - pt.end(); - -// QPalette pal = palette(); -// pal.setBrush(backgroundRole(), m_tile); -// setPalette(pal); -} - - -#ifdef QT_OPENGL_SUPPORT -void ArthurFrame::enableOpenGL(bool use_opengl) -{ - if (m_use_opengl == use_opengl) - return; - - if (!glw && use_opengl) { - glw = new GLWidget(this); - glw->setAutoFillBackground(false); - glw->disableAutoBufferSwap(); - QApplication::postEvent(this, new QResizeEvent(size(), size())); - } - - m_use_opengl = use_opengl; - if (use_opengl) { - glw->show(); - } else { - if (glw) - glw->hide(); - } - - update(); -} -#endif - -void ArthurFrame::paintEvent(QPaintEvent *e) -{ - static QImage *static_image = 0; - QPainter painter; - if (preferImage() -#ifdef QT_OPENGL_SUPPORT - && !m_use_opengl -#endif - ) { - if (!static_image || static_image->size() != size()) { - delete static_image; - static_image = new QImage(size(), QImage::Format_RGB32); - } - painter.begin(static_image); - - int o = 10; - - QBrush bg = palette().brush(QPalette::Background); - painter.fillRect(0, 0, o, o, bg); - painter.fillRect(width() - o, 0, o, o, bg); - painter.fillRect(0, height() - o, o, o, bg); - painter.fillRect(width() - o, height() - o, o, o, bg); - } else { -#ifdef QT_OPENGL_SUPPORT - if (m_use_opengl) { - painter.begin(glw); - painter.fillRect(QRectF(0, 0, glw->width(), glw->height()), palette().color(backgroundRole())); - } else { - painter.begin(this); - } -#else - painter.begin(this); -#endif - } - - painter.setClipRect(e->rect()); - - painter.setRenderHint(QPainter::Antialiasing); - - QPainterPath clipPath; - - QRect r = rect(); - qreal left = r.x() + 1; - qreal top = r.y() + 1; - qreal right = r.right(); - qreal bottom = r.bottom(); - qreal radius2 = 8 * 2; - - clipPath.moveTo(right - radius2, top); - clipPath.arcTo(right - radius2, top, radius2, radius2, 90, -90); - clipPath.arcTo(right - radius2, bottom - radius2, radius2, radius2, 0, -90); - clipPath.arcTo(left, bottom - radius2, radius2, radius2, 270, -90); - clipPath.arcTo(left, top, radius2, radius2, 180, -90); - clipPath.closeSubpath(); - - painter.save(); - painter.setClipPath(clipPath, Qt::IntersectClip); - - painter.drawTiledPixmap(rect(), m_tile); - - // client painting - - paint(&painter); - - painter.restore(); - - painter.save(); - if (m_show_doc) - paintDescription(&painter); - painter.restore(); - - int level = 180; - painter.setPen(QPen(QColor(level, level, level), 2)); - painter.setBrush(Qt::NoBrush); - painter.drawPath(clipPath); - - if (preferImage() -#ifdef QT_OPENGL_SUPPORT - && !m_use_opengl -#endif - ) { - painter.end(); - painter.begin(this); - painter.drawImage(e->rect(), *static_image, e->rect()); - } - -#ifdef QT_OPENGL_SUPPORT - if (m_use_opengl && (inherits("PathDeformRenderer") || inherits("PathStrokeRenderer") || inherits("CompositionRenderer") || m_show_doc)) - glw->swapBuffers(); -#endif -} - -void ArthurFrame::resizeEvent(QResizeEvent *e) -{ -#ifdef QT_OPENGL_SUPPORT - if (glw) - glw->setGeometry(0, 0, e->size().width()-1, e->size().height()-1); -#endif - QWidget::resizeEvent(e); -} - -void ArthurFrame::setDescriptionEnabled(bool enabled) -{ - if (m_show_doc != enabled) { - m_show_doc = enabled; - emit descriptionEnabledChanged(m_show_doc); - update(); - } -} - -void ArthurFrame::loadDescription(const QString &fileName) -{ - QFile textFile(fileName); - QString text; - if (!textFile.open(QFile::ReadOnly)) - text = QString("Unable to load resource file: '%1'").arg(fileName); - else - text = textFile.readAll(); - setDescription(text); -} - - -void ArthurFrame::setDescription(const QString &text) -{ - m_document = new QTextDocument(this); - m_document->setHtml(text); -} - -void ArthurFrame::paintDescription(QPainter *painter) -{ - if (!m_document) - return; - - int pageWidth = qMax(width() - 100, 100); - int pageHeight = qMax(height() - 100, 100); - if (pageWidth != m_document->pageSize().width()) { - m_document->setPageSize(QSize(pageWidth, pageHeight)); - } - - QRect textRect(width() / 2 - pageWidth / 2, - height() / 2 - pageHeight / 2, - pageWidth, - pageHeight); - int pad = 10; - QRect clearRect = textRect.adjusted(-pad, -pad, pad, pad); - painter->setPen(Qt::NoPen); - painter->setBrush(QColor(0, 0, 0, 63)); - int shade = 10; - painter->drawRect(clearRect.x() + clearRect.width() + 1, - clearRect.y() + shade, - shade, - clearRect.height() + 1); - painter->drawRect(clearRect.x() + shade, - clearRect.y() + clearRect.height() + 1, - clearRect.width() - shade + 1, - shade); - - painter->setRenderHint(QPainter::Antialiasing, false); - painter->setBrush(QColor(255, 255, 255, 220)); - painter->setPen(Qt::black); - painter->drawRect(clearRect); - - painter->setClipRegion(textRect, Qt::IntersectClip); - painter->translate(textRect.topLeft()); - - QAbstractTextDocumentLayout::PaintContext ctx; - - QLinearGradient g(0, 0, 0, textRect.height()); - g.setColorAt(0, Qt::black); - g.setColorAt(0.9, Qt::black); - g.setColorAt(1, Qt::transparent); - - QPalette pal = palette(); - pal.setBrush(QPalette::Text, g); - - ctx.palette = pal; - ctx.clip = QRect(0, 0, textRect.width(), textRect.height()); - m_document->documentLayout()->draw(painter, ctx); -} - -void ArthurFrame::loadSourceFile(const QString &sourceFile) -{ - m_sourceFileName = sourceFile; -} - -void ArthurFrame::showSource() -{ - // Check for existing source - if (findChild<QTextBrowser *>()) - return; - - QString contents; - if (m_sourceFileName.isEmpty()) { - contents = QString("No source for widget: '%1'").arg(objectName()); - } else { - QFile f(m_sourceFileName); - if (!f.open(QFile::ReadOnly)) - contents = QString("Could not open file: '%1'").arg(m_sourceFileName); - else - contents = f.readAll(); - } - - contents.replace('&', "&"); - contents.replace('<', "<"); - contents.replace('>', ">"); - - QStringList keywords; - keywords << "for " << "if " << "switch " << " int " << "#include " << "const" - << "void " << "uint " << "case " << "double " << "#define " << "static" - << "new" << "this"; - - foreach (QString keyword, keywords) - contents.replace(keyword, QLatin1String("<font color=olive>") + keyword + QLatin1String("</font>")); - contents.replace("(int ", "(<font color=olive><b>int </b></font>"); - - QStringList ppKeywords; - ppKeywords << "#ifdef" << "#ifndef" << "#if" << "#endif" << "#else"; - - foreach (QString keyword, ppKeywords) - contents.replace(keyword, QLatin1String("<font color=navy>") + keyword + QLatin1String("</font>")); - - contents.replace(QRegExp("(\\d\\d?)"), QLatin1String("<font color=navy>\\1</font>")); - - QRegExp commentRe("(//.+)\\n"); - commentRe.setMinimal(true); - contents.replace(commentRe, QLatin1String("<font color=red>\\1</font>\n")); - - QRegExp stringLiteralRe("(\".+\")"); - stringLiteralRe.setMinimal(true); - contents.replace(stringLiteralRe, QLatin1String("<font color=green>\\1</font>")); - - QString html = contents; - html.prepend("<html><pre>"); - html.append("</pre></html>"); - - QTextBrowser *sourceViewer = new QTextBrowser(0); - sourceViewer->setWindowTitle("Source: " + m_sourceFileName.mid(5)); - sourceViewer->setParent(this, Qt::Dialog); - sourceViewer->setAttribute(Qt::WA_DeleteOnClose); - sourceViewer->setLineWrapMode(QTextEdit::NoWrap); - sourceViewer->setHtml(html); - sourceViewer->resize(600, 600); - sourceViewer->show(); -} |