diff options
Diffstat (limited to 'examples/widgets/widgets/elidedlabel')
| -rw-r--r-- | examples/widgets/widgets/elidedlabel/elidedlabel.cpp | 111 | ||||
| -rw-r--r-- | examples/widgets/widgets/elidedlabel/elidedlabel.desktop | 11 | ||||
| -rw-r--r-- | examples/widgets/widgets/elidedlabel/elidedlabel.h | 76 | ||||
| -rw-r--r-- | examples/widgets/widgets/elidedlabel/elidedlabel.pro | 21 | ||||
| -rw-r--r-- | examples/widgets/widgets/elidedlabel/main.cpp | 53 | ||||
| -rw-r--r-- | examples/widgets/widgets/elidedlabel/testwidget.cpp | 161 | ||||
| -rw-r--r-- | examples/widgets/widgets/elidedlabel/testwidget.h | 76 |
7 files changed, 509 insertions, 0 deletions
diff --git a/examples/widgets/widgets/elidedlabel/elidedlabel.cpp b/examples/widgets/widgets/elidedlabel/elidedlabel.cpp new file mode 100644 index 0000000000..5f58bbcca8 --- /dev/null +++ b/examples/widgets/widgets/elidedlabel/elidedlabel.cpp @@ -0,0 +1,111 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtCore 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 "elidedlabel.h" + +#include <QPainter> +#include <QTextLayout> +#include <QDebug> + +//! [0] +ElidedLabel::ElidedLabel(const QString &text, QWidget *parent) + : QFrame(parent) + , elided(false) + , content(text) +{ + setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred); +} +//! [0] + +//! [1] +void ElidedLabel::setText(const QString &newText) +{ + content = newText; + update(); +} +//! [1] + +//! [2] +void ElidedLabel::paintEvent(QPaintEvent *event) +{ + QFrame::paintEvent(event); + + QPainter painter(this); + QFontMetrics fontMetrics = painter.fontMetrics(); + + bool didElide = false; + int lineSpacing = fontMetrics.lineSpacing(); + int y = 0; + + QTextLayout textLayout(content, painter.font()); + textLayout.beginLayout(); + forever { + QTextLine line = textLayout.createLine(); + + if (!line.isValid()) + break; + + line.setLineWidth(width()); + int nextLineY = y + lineSpacing; + + if (height() >= nextLineY + lineSpacing) { + line.draw(&painter, QPoint(0, y)); + y = nextLineY; + //! [2] + //! [3] + } else { + QString lastLine = content.mid(line.textStart()); + QString elidedLastLine = fontMetrics.elidedText(lastLine, Qt::ElideRight, width()); + painter.drawText(QPoint(0, y + fontMetrics.ascent()), elidedLastLine); + line = textLayout.createLine(); + didElide = line.isValid(); + break; + } + } + textLayout.endLayout(); + //! [3] + + //! [4] + if (didElide != elided) { + elided = didElide; + emit elisionChanged(didElide); + } +} +//! [4] diff --git a/examples/widgets/widgets/elidedlabel/elidedlabel.desktop b/examples/widgets/widgets/elidedlabel/elidedlabel.desktop new file mode 100644 index 0000000000..5da3a6c15a --- /dev/null +++ b/examples/widgets/widgets/elidedlabel/elidedlabel.desktop @@ -0,0 +1,11 @@ +[Desktop Entry] +Encoding=UTF-8 +Version=1.0 +Type=Application +Terminal=false +Name=Elided Label +Exec=/opt/usr/bin/elidedlabel +Icon=elidedlabel +X-Window-Icon= +X-HildonDesk-ShowInToolbar=true +X-Osso-Type=application/x-executable diff --git a/examples/widgets/widgets/elidedlabel/elidedlabel.h b/examples/widgets/widgets/elidedlabel/elidedlabel.h new file mode 100644 index 0000000000..2c19589bc2 --- /dev/null +++ b/examples/widgets/widgets/elidedlabel/elidedlabel.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 QtCore 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef ELIDEDLABEL_H +#define ELIDEDLABEL_H + +#include <QtWidgets/QFrame> +#include <QtCore/QRect> +#include <QtGui/QResizeEvent> +#include <QtCore/QString> +#include <QtWidgets/QWidget> + +//! [0] +class ElidedLabel : public QFrame +{ + Q_OBJECT + Q_PROPERTY(QString text READ text WRITE setText) + Q_PROPERTY(bool isElided READ isElided) + +public: + ElidedLabel(const QString &text, QWidget *parent = 0); + + void setText(const QString &text); + const QString & text() const { return content; } + bool isElided() const { return elided; } + +protected: + void paintEvent(QPaintEvent *event); + +signals: + void elisionChanged(bool elided); + +private: + bool elided; + QString content; +}; +//! [0] + +#endif // TEXTWRAPPINGWIDGET_H diff --git a/examples/widgets/widgets/elidedlabel/elidedlabel.pro b/examples/widgets/widgets/elidedlabel/elidedlabel.pro new file mode 100644 index 0000000000..f3fbc23d96 --- /dev/null +++ b/examples/widgets/widgets/elidedlabel/elidedlabel.pro @@ -0,0 +1,21 @@ +# Nokia Qt Examples: elided label example + +QT += core gui widgets + +TARGET = elidedlabel +TEMPLATE = app + +SOURCES += \ + main.cpp\ + testwidget.cpp \ + elidedlabel.cpp + +HEADERS += \ + testwidget.h \ + elidedlabel.h + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/widgets/elidedlabel +sources.files = $$SOURCES $$HEADERS *.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/widgets/elidedlabel +INSTALLS += target sources diff --git a/examples/widgets/widgets/elidedlabel/main.cpp b/examples/widgets/widgets/elidedlabel/main.cpp new file mode 100644 index 0000000000..a79284e729 --- /dev/null +++ b/examples/widgets/widgets/elidedlabel/main.cpp @@ -0,0 +1,53 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtCore 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 "testwidget.h" + +#include <QtWidgets/QApplication> + +//! [0] +int main( int argc, char *argv[] ) +{ + QApplication application( argc, argv ); + TestWidget w; + w.showFullScreen(); + return application.exec(); +} +//! [0] diff --git a/examples/widgets/widgets/elidedlabel/testwidget.cpp b/examples/widgets/widgets/elidedlabel/testwidget.cpp new file mode 100644 index 0000000000..a60ed655a5 --- /dev/null +++ b/examples/widgets/widgets/elidedlabel/testwidget.cpp @@ -0,0 +1,161 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtCore 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 "testwidget.h" +#include "elidedlabel.h" + +#include <QtWidgets/QLabel> +#include <QtWidgets/QPushButton> +#include <QtWidgets/QSizePolicy> +#include <QtWidgets/QGridLayout> + +//! [0] +TestWidget::TestWidget(QWidget *parent): + QWidget(parent) +{ + const QString romeo = tr( + "But soft, what light through yonder window breaks? / " + "It is the east, and Juliet is the sun. / " + "Arise, fair sun, and kill the envious moon, / " + "Who is already sick and pale with grief / " + "That thou, her maid, art far more fair than she." + ); + + const QString macbeth = tr( + "To-morrow, and to-morrow, and to-morrow, / " + "Creeps in this petty pace from day to day, / " + "To the last syllable of recorded time; / " + "And all our yesterdays have lighted fools / " + "The way to dusty death. Out, out, brief candle! / " + "Life's but a walking shadow, a poor player, / " + "That struts and frets his hour upon the stage, / " + "And then is heard no more. It is a tale / " + "Told by an idiot, full of sound and fury, / " + "Signifying nothing." + ); + + const QString harry = tr("Feeling lucky, punk?"); + + textSamples << romeo << macbeth << harry; + //! [0] + + //! [1] + sampleIndex = 0; + elidedText = new ElidedLabel(textSamples[sampleIndex], this); + elidedText->setFrameStyle(QFrame::Box); + //! [1] + + //! [2] + QPushButton *switchButton = new QPushButton(tr("Switch text")); + connect(switchButton, SIGNAL(clicked(bool)), this, SLOT(switchText())); + + QPushButton *exitButton = new QPushButton(tr("Exit")); + connect(exitButton, SIGNAL(clicked(bool)), this, SLOT(close())); + + QLabel *label = new QLabel(tr("Elided")); + label->setVisible(elidedText->isElided()); + connect(elidedText, SIGNAL(elisionChanged(bool)), label, SLOT(setVisible(bool))); + //! [2] + + //! [3] + widthSlider = new QSlider(Qt::Horizontal); + widthSlider->setMinimum(0); + connect(widthSlider, SIGNAL(valueChanged(int)), this, SLOT(onWidthChanged(int))); + + heightSlider = new QSlider(Qt::Vertical); + heightSlider->setInvertedAppearance(true); + heightSlider->setMinimum(0); + connect(heightSlider, SIGNAL(valueChanged(int)), this, SLOT(onHeightChanged(int))); + //! [3] + + //! [4] + QGridLayout *layout = new QGridLayout(); + layout->addWidget(label, 0, 1, Qt::AlignCenter); + layout->addWidget(switchButton, 0, 2); + layout->addWidget(exitButton, 0, 3); + layout->addWidget(widthSlider, 1, 1, 1, 3); + layout->addWidget(heightSlider, 2, 0); + layout->addWidget(elidedText, 2, 1, 1, 3, Qt::AlignTop | Qt::AlignLeft); + + setLayout(layout); + //! [4] + + //! [5] +} +//! [5] + +//! [6] +void TestWidget::resizeEvent(QResizeEvent *event) +{ + Q_UNUSED(event) + + int maxWidth = widthSlider->width(); + widthSlider->setMaximum(maxWidth); + widthSlider->setValue(maxWidth / 2); + + int maxHeight = heightSlider->height(); + heightSlider->setMaximum(maxHeight); + heightSlider->setValue(maxHeight / 2); + + elidedText->setFixedSize(widthSlider->value(), heightSlider->value()); +} +//! [6] + +//! [7] +void TestWidget::switchText() +{ + sampleIndex = (sampleIndex + 1) % textSamples.size(); + elidedText->setText(textSamples.at(sampleIndex)); +} +//! [7] + +//! [8] +void TestWidget::onWidthChanged(int width) +{ + elidedText->setFixedWidth(width); +} + +void TestWidget::onHeightChanged(int height) +{ + elidedText->setFixedHeight(height); +} +//! [8] + + diff --git a/examples/widgets/widgets/elidedlabel/testwidget.h b/examples/widgets/widgets/elidedlabel/testwidget.h new file mode 100644 index 0000000000..aff90e6ae2 --- /dev/null +++ b/examples/widgets/widgets/elidedlabel/testwidget.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 QtCore 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef TESTWIDGET_H +#define TESTWIDGET_H + +#include <QtWidgets/QWidget> +#include <QtCore/QStringList> +#include <QtWidgets/QSlider> +#include <QtWidgets/QComboBox> + +class ElidedLabel; + +//! [0] +class TestWidget : public QWidget +{ + Q_OBJECT + +public: + TestWidget(QWidget *parent = 0); + +protected: + void resizeEvent(QResizeEvent *event); + +private slots: + void switchText(); + void onWidthChanged(int width); + void onHeightChanged(int height); + +private: + int sampleIndex; + QStringList textSamples; + ElidedLabel *elidedText; + QSlider *heightSlider; + QSlider *widthSlider; +}; +//! [0] + +#endif // TESTWIDGET_H |