diff options
Diffstat (limited to 'examples/widgets/itemviews/stardelegate')
9 files changed, 686 insertions, 0 deletions
diff --git a/examples/widgets/itemviews/stardelegate/main.cpp b/examples/widgets/itemviews/stardelegate/main.cpp new file mode 100644 index 0000000000..3c988e0a8a --- /dev/null +++ b/examples/widgets/itemviews/stardelegate/main.cpp @@ -0,0 +1,107 @@ +/**************************************************************************** +** +** 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 <QtWidgets> + +#include "stardelegate.h" +#include "stareditor.h" +#include "starrating.h" + +//! [0] +void populateTableWidget(QTableWidget *tableWidget) +{ + static const struct { + const char *title; + const char *genre; + const char *artist; + int rating; + } staticData[] = { +//! [0] //! [1] + { "Mass in B-Minor", "Baroque", "J.S. Bach", 5 }, +//! [1] + { "Three More Foxes", "Jazz", "Maynard Ferguson", 4 }, + { "Sex Bomb", "Pop", "Tom Jones", 3 }, + { "Barbie Girl", "Pop", "Aqua", 5 }, +//! [2] + { 0, 0, 0, 0 } +//! [2] //! [3] + }; +//! [3] //! [4] + + for (int row = 0; staticData[row].title != 0; ++row) { + QTableWidgetItem *item0 = new QTableWidgetItem(staticData[row].title); + QTableWidgetItem *item1 = new QTableWidgetItem(staticData[row].genre); + QTableWidgetItem *item2 = new QTableWidgetItem(staticData[row].artist); + QTableWidgetItem *item3 = new QTableWidgetItem; + item3->setData(0, + QVariant::fromValue(StarRating(staticData[row].rating))); + + tableWidget->setItem(row, 0, item0); + tableWidget->setItem(row, 1, item1); + tableWidget->setItem(row, 2, item2); + tableWidget->setItem(row, 3, item3); + } +} +//! [4] + +//! [5] +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + + QTableWidget tableWidget(4, 4); + tableWidget.setItemDelegate(new StarDelegate); + tableWidget.setEditTriggers(QAbstractItemView::DoubleClicked + | QAbstractItemView::SelectedClicked); + tableWidget.setSelectionBehavior(QAbstractItemView::SelectRows); + + QStringList headerLabels; + headerLabels << "Title" << "Genre" << "Artist" << "Rating"; + tableWidget.setHorizontalHeaderLabels(headerLabels); + + populateTableWidget(&tableWidget); + + tableWidget.resizeColumnsToContents(); + tableWidget.resize(500, 300); + tableWidget.show(); + + return app.exec(); +} +//! [5] diff --git a/examples/widgets/itemviews/stardelegate/stardelegate.cpp b/examples/widgets/itemviews/stardelegate/stardelegate.cpp new file mode 100644 index 0000000000..3032c20088 --- /dev/null +++ b/examples/widgets/itemviews/stardelegate/stardelegate.cpp @@ -0,0 +1,129 @@ +/**************************************************************************** +** +** 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 <QtWidgets> + +#include "stardelegate.h" +#include "stareditor.h" +#include "starrating.h" + +//! [0] +void StarDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, + const QModelIndex &index) const +{ + if (index.data().canConvert<StarRating>()) { + StarRating starRating = qvariant_cast<StarRating>(index.data()); + + if (option.state & QStyle::State_Selected) + painter->fillRect(option.rect, option.palette.highlight()); + + starRating.paint(painter, option.rect, option.palette, + StarRating::ReadOnly); + } else { + QStyledItemDelegate::paint(painter, option, index); + } +//! [0] +} + +//! [1] +QSize StarDelegate::sizeHint(const QStyleOptionViewItem &option, + const QModelIndex &index) const +{ + if (index.data().canConvert<StarRating>()) { + StarRating starRating = qvariant_cast<StarRating>(index.data()); + return starRating.sizeHint(); + } else { + return QStyledItemDelegate::sizeHint(option, index); + } +} +//! [1] + +//! [2] +QWidget *StarDelegate::createEditor(QWidget *parent, + const QStyleOptionViewItem &option, + const QModelIndex &index) const + +{ + if (index.data().canConvert<StarRating>()) { + StarEditor *editor = new StarEditor(parent); + connect(editor, SIGNAL(editingFinished()), + this, SLOT(commitAndCloseEditor())); + return editor; + } else { + return QStyledItemDelegate::createEditor(parent, option, index); + } +} +//! [2] + +//! [3] +void StarDelegate::setEditorData(QWidget *editor, + const QModelIndex &index) const +{ + if (index.data().canConvert<StarRating>()) { + StarRating starRating = qvariant_cast<StarRating>(index.data()); + StarEditor *starEditor = qobject_cast<StarEditor *>(editor); + starEditor->setStarRating(starRating); + } else { + QStyledItemDelegate::setEditorData(editor, index); + } +} +//! [3] + +//! [4] +void StarDelegate::setModelData(QWidget *editor, QAbstractItemModel *model, + const QModelIndex &index) const +{ + if (index.data().canConvert<StarRating>()) { + StarEditor *starEditor = qobject_cast<StarEditor *>(editor); + model->setData(index, QVariant::fromValue(starEditor->starRating())); + } else { + QStyledItemDelegate::setModelData(editor, model, index); + } +} +//! [4] + +//! [5] +void StarDelegate::commitAndCloseEditor() +{ + StarEditor *editor = qobject_cast<StarEditor *>(sender()); + emit commitData(editor); + emit closeEditor(editor); +} +//! [5] diff --git a/examples/widgets/itemviews/stardelegate/stardelegate.desktop b/examples/widgets/itemviews/stardelegate/stardelegate.desktop new file mode 100644 index 0000000000..d508c3b286 --- /dev/null +++ b/examples/widgets/itemviews/stardelegate/stardelegate.desktop @@ -0,0 +1,11 @@ +[Desktop Entry] +Encoding=UTF-8 +Version=1.0 +Type=Application +Terminal=false +Name=Star Delegate +Exec=/opt/usr/bin/stardelegate +Icon=stardelegate +X-Window-Icon= +X-HildonDesk-ShowInToolbar=true +X-Osso-Type=application/x-executable diff --git a/examples/widgets/itemviews/stardelegate/stardelegate.h b/examples/widgets/itemviews/stardelegate/stardelegate.h new file mode 100644 index 0000000000..6c53ab8833 --- /dev/null +++ b/examples/widgets/itemviews/stardelegate/stardelegate.h @@ -0,0 +1,69 @@ +/**************************************************************************** +** +** 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef STARDELEGATE_H +#define STARDELEGATE_H + +#include <QStyledItemDelegate> + +//! [0] +class StarDelegate : public QStyledItemDelegate +{ + Q_OBJECT + +public: + StarDelegate(QWidget *parent = 0) : QStyledItemDelegate(parent) {} + + void paint(QPainter *painter, const QStyleOptionViewItem &option, + const QModelIndex &index) const; + QSize sizeHint(const QStyleOptionViewItem &option, + const QModelIndex &index) const; + QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, + const QModelIndex &index) const; + void setEditorData(QWidget *editor, const QModelIndex &index) const; + void setModelData(QWidget *editor, QAbstractItemModel *model, + const QModelIndex &index) const; + +private slots: + void commitAndCloseEditor(); +}; +//! [0] + +#endif diff --git a/examples/widgets/itemviews/stardelegate/stardelegate.pro b/examples/widgets/itemviews/stardelegate/stardelegate.pro new file mode 100644 index 0000000000..915c26a524 --- /dev/null +++ b/examples/widgets/itemviews/stardelegate/stardelegate.pro @@ -0,0 +1,17 @@ +HEADERS = stardelegate.h \ + stareditor.h \ + starrating.h +SOURCES = main.cpp \ + stardelegate.cpp \ + stareditor.cpp \ + starrating.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/itemviews/stardelegate +sources.files = $$SOURCES $$HEADERS *.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/itemviews/stardelegate +INSTALLS += target sources + + +QT += widgets +simulator: warning(This example might not fully work on Simulator platform) diff --git a/examples/widgets/itemviews/stardelegate/stareditor.cpp b/examples/widgets/itemviews/stardelegate/stareditor.cpp new file mode 100644 index 0000000000..795a748941 --- /dev/null +++ b/examples/widgets/itemviews/stardelegate/stareditor.cpp @@ -0,0 +1,98 @@ +/**************************************************************************** +** +** 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 <QtWidgets> + +#include "stareditor.h" +#include "starrating.h" + +//! [0] +StarEditor::StarEditor(QWidget *parent) + : QWidget(parent) +{ + setMouseTracking(true); + setAutoFillBackground(true); +} +//! [0] + +QSize StarEditor::sizeHint() const +{ + return myStarRating.sizeHint(); +} + +//! [1] +void StarEditor::paintEvent(QPaintEvent *) +{ + QPainter painter(this); + myStarRating.paint(&painter, rect(), this->palette(), + StarRating::Editable); +} +//! [1] + +//! [2] +void StarEditor::mouseMoveEvent(QMouseEvent *event) +{ + int star = starAtPosition(event->x()); + + if (star != myStarRating.starCount() && star != -1) { + myStarRating.setStarCount(star); + update(); + } +} +//! [2] + +//! [3] +void StarEditor::mouseReleaseEvent(QMouseEvent * /* event */) +{ + emit editingFinished(); +} +//! [3] + +//! [4] +int StarEditor::starAtPosition(int x) +{ + int star = (x / (myStarRating.sizeHint().width() + / myStarRating.maxStarCount())) + 1; + if (star <= 0 || star > myStarRating.maxStarCount()) + return -1; + + return star; +} +//! [4] diff --git a/examples/widgets/itemviews/stardelegate/stareditor.h b/examples/widgets/itemviews/stardelegate/stareditor.h new file mode 100644 index 0000000000..88bee7d28d --- /dev/null +++ b/examples/widgets/itemviews/stardelegate/stareditor.h @@ -0,0 +1,77 @@ +/**************************************************************************** +** +** 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef STAREDITOR_H +#define STAREDITOR_H + +#include <QWidget> + +#include "starrating.h" + +//! [0] +class StarEditor : public QWidget +{ + Q_OBJECT + +public: + StarEditor(QWidget *parent = 0); + + QSize sizeHint() const; + void setStarRating(const StarRating &starRating) { + myStarRating = starRating; + } + StarRating starRating() { return myStarRating; } + +signals: + void editingFinished(); + +protected: + void paintEvent(QPaintEvent *event); + void mouseMoveEvent(QMouseEvent *event); + void mouseReleaseEvent(QMouseEvent *event); + +private: + int starAtPosition(int x); + + StarRating myStarRating; +}; +//! [0] + +#endif diff --git a/examples/widgets/itemviews/stardelegate/starrating.cpp b/examples/widgets/itemviews/stardelegate/starrating.cpp new file mode 100644 index 0000000000..cea9330db2 --- /dev/null +++ b/examples/widgets/itemviews/stardelegate/starrating.cpp @@ -0,0 +1,102 @@ +/**************************************************************************** +** +** 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 <QtWidgets> +#include <math.h> + +#include "starrating.h" + +const int PaintingScaleFactor = 20; + +//! [0] +StarRating::StarRating(int starCount, int maxStarCount) +{ + myStarCount = starCount; + myMaxStarCount = maxStarCount; + + starPolygon << QPointF(1.0, 0.5); + for (int i = 1; i < 5; ++i) + starPolygon << QPointF(0.5 + 0.5 * cos(0.8 * i * 3.14), + 0.5 + 0.5 * sin(0.8 * i * 3.14)); + + diamondPolygon << QPointF(0.4, 0.5) << QPointF(0.5, 0.4) + << QPointF(0.6, 0.5) << QPointF(0.5, 0.6) + << QPointF(0.4, 0.5); +} +//! [0] + +//! [1] +QSize StarRating::sizeHint() const +{ + return PaintingScaleFactor * QSize(myMaxStarCount, 1); +} +//! [1] + +//! [2] +void StarRating::paint(QPainter *painter, const QRect &rect, + const QPalette &palette, EditMode mode) const +{ + painter->save(); + + painter->setRenderHint(QPainter::Antialiasing, true); + painter->setPen(Qt::NoPen); + + if (mode == Editable) { + painter->setBrush(palette.highlight()); + } else { + painter->setBrush(palette.foreground()); + } + + int yOffset = (rect.height() - PaintingScaleFactor) / 2; + painter->translate(rect.x(), rect.y() + yOffset); + painter->scale(PaintingScaleFactor, PaintingScaleFactor); + + for (int i = 0; i < myMaxStarCount; ++i) { + if (i < myStarCount) { + painter->drawPolygon(starPolygon, Qt::WindingFill); + } else if (mode == Editable) { + painter->drawPolygon(diamondPolygon, Qt::WindingFill); + } + painter->translate(1.0, 0.0); + } + + painter->restore(); +} +//! [2] diff --git a/examples/widgets/itemviews/stardelegate/starrating.h b/examples/widgets/itemviews/stardelegate/starrating.h new file mode 100644 index 0000000000..04fae2509a --- /dev/null +++ b/examples/widgets/itemviews/stardelegate/starrating.h @@ -0,0 +1,76 @@ +/**************************************************************************** +** +** 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef STARRATING_H +#define STARRATING_H + +#include <QMetaType> +#include <QPointF> +#include <QVector> + +//! [0] +class StarRating +{ +public: + enum EditMode { Editable, ReadOnly }; + + StarRating(int starCount = 1, int maxStarCount = 5); + + void paint(QPainter *painter, const QRect &rect, + const QPalette &palette, EditMode mode) const; + QSize sizeHint() const; + int starCount() const { return myStarCount; } + int maxStarCount() const { return myMaxStarCount; } + void setStarCount(int starCount) { myStarCount = starCount; } + void setMaxStarCount(int maxStarCount) { myMaxStarCount = maxStarCount; } + +private: + QPolygonF starPolygon; + QPolygonF diamondPolygon; + int myStarCount; + int myMaxStarCount; +}; +//! [0] + +//! [1] +Q_DECLARE_METATYPE(StarRating) +//! [1] + +#endif |