Mercurial > projects > qtd
view examples/desktop/screenshot/screenshot.d @ 286:e6d48cb9d1e0 signals2
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author | eldar |
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date | Sun, 08 Nov 2009 19:19:09 +0000 |
parents | 256ab6cb8e85 |
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/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** Contact: Qt Software Information (qt-info@nokia.com) ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial Usage ** Licensees holding valid Qt Commercial licenses may use this file in ** accordance with the Qt Commercial License Agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and Nokia. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Nokia gives you certain ** additional rights. These rights are described in the Nokia Qt LGPL ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this ** package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** If you are unsure which license is appropriate for your use, please ** contact the sales department at qt-sales@nokia.com. ** $QT_END_LICENSE$ ** ****************************************************************************/ module screenshot; import qt.gui.QPixmap; import qt.gui.QWidget; import qt.gui.QCheckBox; import qt.gui.QGridLayout; import qt.gui.QGroupBox; import qt.gui.QHBoxLayout; import qt.gui.QLabel; import qt.gui.QPushButton; import qt.gui.QSpinBox; import qt.gui.QVBoxLayout; import qt.gui.QFileDialog; import qt.core.QDir; import qt.core.QTimer; import tango.text.convert.Format; import tango.text.Ascii; class Screenshot : public QWidget { public: this() { screenshotLabel = new QLabel; screenshotLabel.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding); screenshotLabel.setAlignment(Qt.AlignCenter); screenshotLabel.setMinimumSize(240, 160); createOptionsGroupBox(); createButtonsLayout(); mainLayout = new QVBoxLayout; mainLayout.addWidget(screenshotLabel); mainLayout.addWidget(optionsGroupBox); mainLayout.addLayout(buttonsLayout); setLayout(mainLayout); shootScreen(); delaySpinBox.setValue(5); setWindowTitle(tr("Screenshot")); resize(300, 200); } protected: void resizeEvent(QResizeEvent /* event */) { QSize scaledSize = originalPixmap.size(); scaledSize.scale(screenshotLabel.size(), Qt.KeepAspectRatio); if (!screenshotLabel.pixmap() || scaledSize != screenshotLabel.pixmap().size()) updateScreenshotLabel(); } private: void newScreenshot() { if (hideThisWindowCheckBox.isChecked()) hide(); newScreenshotButton.setDisabled(true); QTimer.singleShot(delaySpinBox.value() * 1000, this, SLOT(shootScreen())); } void saveScreenshot() { string format = "png"; string initialPath = QDir.currentPath() + tr("/untitled.") + format; string fileName = QFileDialog.getSaveFileName(this, tr("Save As"), initialPath, Format(tr("{} Files (*.{});;All Files (*)"), toUpper(format), format)); if (fileName.length) originalPixmap.save(fileName, format); } void shootScreen() { if (delaySpinBox.value() != 0) QApplication.beep(); originalPixmap = new QPixmap(); // clear image for low memory situations // on embedded devices. originalPixmap = QPixmap.grabWindow(QApplication.desktop().winId()); updateScreenshotLabel(); newScreenshotButton.setDisabled(false); if (hideThisWindowCheckBox.isChecked()) show(); } void updateCheckBox() { if (delaySpinBox.value() == 0) { hideThisWindowCheckBox.setDisabled(true); hideThisWindowCheckBox.setChecked(false); } else hideThisWindowCheckBox.setDisabled(false); } private: void createOptionsGroupBox() { optionsGroupBox = new QGroupBox(tr("Options")); delaySpinBox = new QSpinBox; delaySpinBox.setSuffix(tr(" s")); delaySpinBox.setMaximum(60); connect!("valueChanged")(delaySpinBox, &this.updateCheckBox); delaySpinBoxLabel = new QLabel(tr("Screenshot Delay:")); hideThisWindowCheckBox = new QCheckBox(tr("Hide This Window")); optionsGroupBoxLayout = new QGridLayout; optionsGroupBoxLayout.addWidget(delaySpinBoxLabel, 0, 0); optionsGroupBoxLayout.addWidget(delaySpinBox, 0, 1); optionsGroupBoxLayout.addWidget(hideThisWindowCheckBox, 1, 0, 1, 2); optionsGroupBox.setLayout(optionsGroupBoxLayout); } void createButtonsLayout() { newScreenshotButton = createButton(tr("New Screenshot"), &this.newScreenshot); saveScreenshotButton = createButton(tr("Save Screenshot"), &this.saveScreenshot); quitScreenshotButton = createButton(tr("Quit"), &this.close); buttonsLayout = new QHBoxLayout; buttonsLayout.addStretch(); buttonsLayout.addWidget(newScreenshotButton); buttonsLayout.addWidget(saveScreenshotButton); buttonsLayout.addWidget(quitScreenshotButton); } QPushButton createButton(string text, void delegate() slot) { QPushButton button = new QPushButton(text); connect!("clicked")(button, slot); return button; } void updateScreenshotLabel() { screenshotLabel.setPixmap(originalPixmap.scaled(screenshotLabel.size(), Qt.KeepAspectRatio, Qt.SmoothTransformation)); } QPixmap originalPixmap; QLabel screenshotLabel; QGroupBox optionsGroupBox; QSpinBox delaySpinBox; QLabel delaySpinBoxLabel; QCheckBox hideThisWindowCheckBox; QPushButton newScreenshotButton; QPushButton saveScreenshotButton; QPushButton quitScreenshotButton; QVBoxLayout mainLayout; QGridLayout optionsGroupBoxLayout; QHBoxLayout buttonsLayout; }