diff options
Diffstat (limited to 'examples/widgets/tools/plugandpaintplugins')
9 files changed, 517 insertions, 0 deletions
diff --git a/examples/widgets/tools/plugandpaintplugins/basictools/basictools.json b/examples/widgets/tools/plugandpaintplugins/basictools/basictools.json new file mode 100644 index 0000000000..0967ef424b --- /dev/null +++ b/examples/widgets/tools/plugandpaintplugins/basictools/basictools.json @@ -0,0 +1 @@ +{} diff --git a/examples/widgets/tools/plugandpaintplugins/basictools/basictools.pro b/examples/widgets/tools/plugandpaintplugins/basictools/basictools.pro new file mode 100644 index 0000000000..3190e45c46 --- /dev/null +++ b/examples/widgets/tools/plugandpaintplugins/basictools/basictools.pro @@ -0,0 +1,18 @@ +#! [0] +TEMPLATE = lib +CONFIG += plugin static +INCLUDEPATH += ../.. +HEADERS = basictoolsplugin.h +SOURCES = basictoolsplugin.cpp +OTHER_FILES += basictools.json +TARGET = $$qtLibraryTarget(pnp_basictools) +DESTDIR = ../../plugandpaint/plugins +#! [0] + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/tools/plugandpaint/plugins +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS basictools.pro basictools.json +sources.path = $$[QT_INSTALL_EXAMPLES]/tools/plugandpaintplugins/basictools +INSTALLS += target sources + +QT += widgets diff --git a/examples/widgets/tools/plugandpaintplugins/basictools/basictoolsplugin.cpp b/examples/widgets/tools/plugandpaintplugins/basictools/basictoolsplugin.cpp new file mode 100644 index 0000000000..e0d68bac45 --- /dev/null +++ b/examples/widgets/tools/plugandpaintplugins/basictools/basictoolsplugin.cpp @@ -0,0 +1,191 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** 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 Digia Plc 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 <QtWidgets> + +#include <math.h> +#include <stdlib.h> + +#include "basictoolsplugin.h" + +const float Pi = 3.14159f; + +//! [0] +QStringList BasicToolsPlugin::brushes() const +{ + return QStringList() << tr("Pencil") << tr("Air Brush") + << tr("Random Letters"); +} +//! [0] + +//! [1] +QRect BasicToolsPlugin::mousePress(const QString &brush, QPainter &painter, + const QPoint &pos) +{ + return mouseMove(brush, painter, pos, pos); +} +//! [1] + +//! [2] +QRect BasicToolsPlugin::mouseMove(const QString &brush, QPainter &painter, + const QPoint &oldPos, const QPoint &newPos) +{ + painter.save(); + + int rad = painter.pen().width() / 2; + QRect boundingRect = QRect(oldPos, newPos).normalized() + .adjusted(-rad, -rad, +rad, +rad); + QColor color = painter.pen().color(); + int thickness = painter.pen().width(); + QColor transparentColor(color.red(), color.green(), color.blue(), 0); +//! [2] //! [3] + + if (brush == tr("Pencil")) { + painter.drawLine(oldPos, newPos); + } else if (brush == tr("Air Brush")) { + int numSteps = 2 + (newPos - oldPos).manhattanLength() / 2; + + painter.setBrush(QBrush(color, Qt::Dense6Pattern)); + painter.setPen(Qt::NoPen); + + for (int i = 0; i < numSteps; ++i) { + int x = oldPos.x() + i * (newPos.x() - oldPos.x()) / (numSteps - 1); + int y = oldPos.y() + i * (newPos.y() - oldPos.y()) / (numSteps - 1); + + painter.drawEllipse(x - (thickness / 2), y - (thickness / 2), + thickness, thickness); + } + } else if (brush == tr("Random Letters")) { + QChar ch('A' + (qrand() % 26)); + + QFont biggerFont = painter.font(); + biggerFont.setBold(true); + biggerFont.setPointSize(biggerFont.pointSize() + thickness); + painter.setFont(biggerFont); + + painter.drawText(newPos, QString(ch)); + + QFontMetrics metrics(painter.font()); + boundingRect = metrics.boundingRect(ch); + boundingRect.translate(newPos); + boundingRect.adjust(-10, -10, +10, +10); + } + painter.restore(); + return boundingRect; +} +//! [3] + +//! [4] +QRect BasicToolsPlugin::mouseRelease(const QString & /* brush */, + QPainter & /* painter */, + const QPoint & /* pos */) +{ + return QRect(0, 0, 0, 0); +} +//! [4] + +//! [5] +QStringList BasicToolsPlugin::shapes() const +{ + return QStringList() << tr("Circle") << tr("Star") << tr("Text..."); +} +//! [5] + +//! [6] +QPainterPath BasicToolsPlugin::generateShape(const QString &shape, + QWidget *parent) +{ + QPainterPath path; + + if (shape == tr("Circle")) { + path.addEllipse(0, 0, 50, 50); + } else if (shape == tr("Star")) { + path.moveTo(90, 50); + for (int i = 1; i < 5; ++i) { + path.lineTo(50 + 40 * cos(0.8 * i * Pi), + 50 + 40 * sin(0.8 * i * Pi)); + } + path.closeSubpath(); + } else if (shape == tr("Text...")) { + QString text = QInputDialog::getText(parent, tr("Text Shape"), + tr("Enter text:"), + QLineEdit::Normal, tr("Qt")); + if (!text.isEmpty()) { + QFont timesFont("Times", 50); + timesFont.setStyleStrategy(QFont::ForceOutline); + path.addText(0, 0, timesFont, text); + } + } + + return path; +} +//! [6] + +//! [7] +QStringList BasicToolsPlugin::filters() const +{ + return QStringList() << tr("Invert Pixels") << tr("Swap RGB") + << tr("Grayscale"); +} +//! [7] + +//! [8] +QImage BasicToolsPlugin::filterImage(const QString &filter, const QImage &image, + QWidget * /* parent */) +{ + QImage result = image.convertToFormat(QImage::Format_RGB32); + + if (filter == tr("Invert Pixels")) { + result.invertPixels(); + } else if (filter == tr("Swap RGB")) { + result = result.rgbSwapped(); + } else if (filter == tr("Grayscale")) { + for (int y = 0; y < result.height(); ++y) { + for (int x = 0; x < result.width(); ++x) { + int pixel = result.pixel(x, y); + int gray = qGray(pixel); + int alpha = qAlpha(pixel); + result.setPixel(x, y, qRgba(gray, gray, gray, alpha)); + } + } + } + return result; +} +//! [8] diff --git a/examples/widgets/tools/plugandpaintplugins/basictools/basictoolsplugin.h b/examples/widgets/tools/plugandpaintplugins/basictools/basictoolsplugin.h new file mode 100644 index 0000000000..b5159803f6 --- /dev/null +++ b/examples/widgets/tools/plugandpaintplugins/basictools/basictoolsplugin.h @@ -0,0 +1,89 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** 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 Digia Plc 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$ +** +****************************************************************************/ + +#ifndef BASICTOOLSPLUGIN_H +#define BASICTOOLSPLUGIN_H + +#include <QRect> +#include <QObject> +#include <QtPlugin> +#include <QStringList> +#include <QPainterPath> +#include <QImage> + +//! [0] +#include <plugandpaint/interfaces.h> + +//! [1] +class BasicToolsPlugin : public QObject, + public BrushInterface, + public ShapeInterface, + public FilterInterface +{ + Q_OBJECT + Q_PLUGIN_METADATA(IID "org.qt-project.Qt.Examples.PlugAndPaint.BrushInterface" FILE "basictools.json") + Q_INTERFACES(BrushInterface ShapeInterface FilterInterface) +//! [0] + +//! [2] +public: +//! [1] + // BrushInterface + QStringList brushes() const; + QRect mousePress(const QString &brush, QPainter &painter, + const QPoint &pos); + QRect mouseMove(const QString &brush, QPainter &painter, + const QPoint &oldPos, const QPoint &newPos); + QRect mouseRelease(const QString &brush, QPainter &painter, + const QPoint &pos); + + // ShapeInterface + QStringList shapes() const; + QPainterPath generateShape(const QString &shape, QWidget *parent); + + // FilterInterface + QStringList filters() const; + QImage filterImage(const QString &filter, const QImage &image, + QWidget *parent); +//! [3] +}; +//! [2] //! [3] + +#endif diff --git a/examples/widgets/tools/plugandpaintplugins/extrafilters/extrafilters.json b/examples/widgets/tools/plugandpaintplugins/extrafilters/extrafilters.json new file mode 100644 index 0000000000..0967ef424b --- /dev/null +++ b/examples/widgets/tools/plugandpaintplugins/extrafilters/extrafilters.json @@ -0,0 +1 @@ +{} diff --git a/examples/widgets/tools/plugandpaintplugins/extrafilters/extrafilters.pro b/examples/widgets/tools/plugandpaintplugins/extrafilters/extrafilters.pro new file mode 100644 index 0000000000..bc7ccffc0a --- /dev/null +++ b/examples/widgets/tools/plugandpaintplugins/extrafilters/extrafilters.pro @@ -0,0 +1,19 @@ +#! [0] +TEMPLATE = lib +CONFIG += plugin +INCLUDEPATH += ../.. +HEADERS = extrafiltersplugin.h +SOURCES = extrafiltersplugin.cpp +OTHER_FILES += extrafilters.json +TARGET = $$qtLibraryTarget(pnp_extrafilters) +DESTDIR = ../../plugandpaint/plugins + +#! [0] +# install +target.path = $$[QT_INSTALL_EXAMPLES]/tools/plugandpaint/plugins +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS extrafilters.pro extrafilters.json +sources.path = $$[QT_INSTALL_EXAMPLES]/tools/plugandpaintplugins/extrafilters +INSTALLS += target sources + + +QT += widgets diff --git a/examples/widgets/tools/plugandpaintplugins/extrafilters/extrafiltersplugin.cpp b/examples/widgets/tools/plugandpaintplugins/extrafilters/extrafiltersplugin.cpp new file mode 100644 index 0000000000..297f164428 --- /dev/null +++ b/examples/widgets/tools/plugandpaintplugins/extrafilters/extrafiltersplugin.cpp @@ -0,0 +1,122 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** 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 Digia Plc 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 <QtWidgets> + +#include <math.h> +#include <stdlib.h> + +#include "extrafiltersplugin.h" + +QStringList ExtraFiltersPlugin::filters() const +{ + return QStringList() << tr("Flip Horizontally") << tr("Flip Vertically") + << tr("Smudge...") << tr("Threshold..."); +} + +QImage ExtraFiltersPlugin::filterImage(const QString &filter, + const QImage &image, QWidget *parent) +{ + QImage original = image.convertToFormat(QImage::Format_RGB32); + QImage result = original; + + if (filter == tr("Flip Horizontally")) { + for (int y = 0; y < original.height(); ++y) { + for (int x = 0; x < original.width(); ++x) { + int pixel = original.pixel(original.width() - x - 1, y); + result.setPixel(x, y, pixel); + } + } + } else if (filter == tr("Flip Vertically")) { + for (int y = 0; y < original.height(); ++y) { + for (int x = 0; x < original.width(); ++x) { + int pixel = original.pixel(x, original.height() - y - 1); + result.setPixel(x, y, pixel); + } + } + } else if (filter == tr("Smudge...")) { + bool ok; + int numIters = QInputDialog::getInt(parent, tr("Smudge Filter"), + tr("Enter number of iterations:"), + 5, 1, 20, 1, &ok); + if (ok) { + for (int i = 0; i < numIters; ++i) { + for (int y = 1; y < original.height() - 1; ++y) { + for (int x = 1; x < original.width() - 1; ++x) { + int p1 = original.pixel(x, y); + int p2 = original.pixel(x, y + 1); + int p3 = original.pixel(x, y - 1); + int p4 = original.pixel(x + 1, y); + int p5 = original.pixel(x - 1, y); + + int red = (qRed(p1) + qRed(p2) + qRed(p3) + qRed(p4) + + qRed(p5)) / 5; + int green = (qGreen(p1) + qGreen(p2) + qGreen(p3) + + qGreen(p4) + qGreen(p5)) / 5; + int blue = (qBlue(p1) + qBlue(p2) + qBlue(p3) + + qBlue(p4) + qBlue(p5)) / 5; + int alpha = (qAlpha(p1) + qAlpha(p2) + qAlpha(p3) + + qAlpha(p4) + qAlpha(p5)) / 5; + + result.setPixel(x, y, qRgba(red, green, blue, alpha)); + } + } + } + } + } else if (filter == tr("Threshold...")) { + bool ok; + int threshold = QInputDialog::getInt(parent, tr("Threshold Filter"), + tr("Enter threshold:"), + 10, 1, 256, 1, &ok); + if (ok) { + int factor = 256 / threshold; + for (int y = 0; y < original.height(); ++y) { + for (int x = 0; x < original.width(); ++x) { + int pixel = original.pixel(x, y); + result.setPixel(x, y, qRgba(qRed(pixel) / factor * factor, + qGreen(pixel) / factor * factor, + qBlue(pixel) / factor * factor, + qAlpha(pixel))); + } + } + } + } + return result; +} diff --git a/examples/widgets/tools/plugandpaintplugins/extrafilters/extrafiltersplugin.h b/examples/widgets/tools/plugandpaintplugins/extrafilters/extrafiltersplugin.h new file mode 100644 index 0000000000..7add7abb53 --- /dev/null +++ b/examples/widgets/tools/plugandpaintplugins/extrafilters/extrafiltersplugin.h @@ -0,0 +1,65 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** 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 Digia Plc 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef EXTRAFILTERSPLUGIN_H +#define EXTRAFILTERSPLUGIN_H + +//! [0] +#include <QObject> +#include <QtPlugin> +#include <QStringList> +#include <QImage> + +#include <plugandpaint/interfaces.h> + +class ExtraFiltersPlugin : public QObject, public FilterInterface +{ + Q_OBJECT + Q_PLUGIN_METADATA(IID "org.qt-project.Qt.Examples.PlugAndPaint.FilterInterface" FILE "extrafilters.json") + Q_INTERFACES(FilterInterface) + +public: + QStringList filters() const; + QImage filterImage(const QString &filter, const QImage &image, + QWidget *parent); +}; +//! [0] + +#endif diff --git a/examples/widgets/tools/plugandpaintplugins/plugandpaintplugins.pro b/examples/widgets/tools/plugandpaintplugins/plugandpaintplugins.pro new file mode 100644 index 0000000000..8eab48e92d --- /dev/null +++ b/examples/widgets/tools/plugandpaintplugins/plugandpaintplugins.pro @@ -0,0 +1,11 @@ +TEMPLATE = subdirs +SUBDIRS = basictools \ + extrafilters + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/tools/plugandpaintplugins +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS plugandpaintplugins.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/tools/plugandpaintplugins +INSTALLS += target sources + +QT += widgets |