testwidget.cpp Example File

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#include "testwidget.h" #include "elidedlabel.h" #include <QtWidgets/QLabel> #include <QtWidgets/QPushButton> #include <QtWidgets/QSizePolicy> #include <QtWidgets/QGridLayout> 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; sampleIndex = 0; elidedText = new ElidedLabel(textSamples[sampleIndex], this); elidedText->setFrameStyle(QFrame::Box); 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))); 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))); 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); } 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()); } void TestWidget::switchText() { sampleIndex = (sampleIndex + 1) % textSamples.size(); elidedText->setText(textSamples.at(sampleIndex)); } void TestWidget::onWidthChanged(int width) { elidedText->setFixedWidth(width); } void TestWidget::onHeightChanged(int height) { elidedText->setFixedHeight(height); }

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