From 806dda08d685bc5f9ed71dfe8b61f21848d48066 Mon Sep 17 00:00:00 2001 From: Gabriel de Dietrich Date: Fri, 17 Aug 2012 13:23:19 +0200 Subject: Moving .qdoc files under examples/widgets/doc Updated those .qdoc files to refer to the new relative examples emplacement. Images and snippets to be moved later. Also grouped all widgets related examples under widgets. Change-Id: Ib29696e2d8948524537f53e8dda88f9ee26a597f Reviewed-by: J-P Nurmi --- .../painting/transformations/renderarea.cpp | 172 +++++++++++++++++++++ 1 file changed, 172 insertions(+) create mode 100644 examples/widgets/painting/transformations/renderarea.cpp (limited to 'examples/widgets/painting/transformations/renderarea.cpp') diff --git a/examples/widgets/painting/transformations/renderarea.cpp b/examples/widgets/painting/transformations/renderarea.cpp new file mode 100644 index 0000000000..58be8143c3 --- /dev/null +++ b/examples/widgets/painting/transformations/renderarea.cpp @@ -0,0 +1,172 @@ +/**************************************************************************** +** +** 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 + +#include "renderarea.h" + +//! [0] +RenderArea::RenderArea(QWidget *parent) + : QWidget(parent) +{ + QFont newFont = font(); + newFont.setPixelSize(12); + setFont(newFont); + + QFontMetrics fontMetrics(newFont); + xBoundingRect = fontMetrics.boundingRect(tr("x")); + yBoundingRect = fontMetrics.boundingRect(tr("y")); +} +//! [0] + +//! [1] +void RenderArea::setOperations(const QList &operations) +{ + this->operations = operations; + update(); +} +//! [1] + +//! [2] +void RenderArea::setShape(const QPainterPath &shape) +{ + this->shape = shape; + update(); +} +//! [2] + +//! [3] +QSize RenderArea::minimumSizeHint() const +{ + return QSize(182, 182); +} +//! [3] + +//! [4] +QSize RenderArea::sizeHint() const +{ + return QSize(232, 232); +} +//! [4] + +//! [5] +void RenderArea::paintEvent(QPaintEvent *event) +{ + QPainter painter(this); + painter.setRenderHint(QPainter::Antialiasing); + painter.fillRect(event->rect(), QBrush(Qt::white)); + + painter.translate(66, 66); +//! [5] + +//! [6] + painter.save(); + transformPainter(painter); + drawShape(painter); + painter.restore(); +//! [6] + +//! [7] + drawOutline(painter); +//! [7] + +//! [8] + transformPainter(painter); + drawCoordinates(painter); +} +//! [8] + +//! [9] +void RenderArea::drawCoordinates(QPainter &painter) +{ + painter.setPen(Qt::red); + + painter.drawLine(0, 0, 50, 0); + painter.drawLine(48, -2, 50, 0); + painter.drawLine(48, 2, 50, 0); + painter.drawText(60 - xBoundingRect.width() / 2, + 0 + xBoundingRect.height() / 2, tr("x")); + + painter.drawLine(0, 0, 0, 50); + painter.drawLine(-2, 48, 0, 50); + painter.drawLine(2, 48, 0, 50); + painter.drawText(0 - yBoundingRect.width() / 2, + 60 + yBoundingRect.height() / 2, tr("y")); +} +//! [9] + +//! [10] +void RenderArea::drawOutline(QPainter &painter) +{ + painter.setPen(Qt::darkGreen); + painter.setPen(Qt::DashLine); + painter.setBrush(Qt::NoBrush); + painter.drawRect(0, 0, 100, 100); +} +//! [10] + +//! [11] +void RenderArea::drawShape(QPainter &painter) +{ + painter.fillPath(shape, Qt::blue); +} +//! [11] + +//! [12] +void RenderArea::transformPainter(QPainter &painter) +{ + for (int i = 0; i < operations.size(); ++i) { + switch (operations[i]) { + case Translate: + painter.translate(50, 50); + break; + case Scale: + painter.scale(0.75, 0.75); + break; + case Rotate: + painter.rotate(60); + break; + case NoTransformation: + default: + ; + } + } +} +//! [12] -- cgit v1.2.3