examples/Screenshot.qs

   1 /****************************************************************************
   2 **
   3 ** Copyright (C) 2008 Trolltech ASA. All rights reserved.
   4 **
   5 ** This file is part of the Qt Script Generator project on Trolltech Labs.
   6 **
   7 ** This file may be used under the terms of the GNU General Public
   8 ** License version 2.0 as published by the Free Software Foundation
   9 ** and appearing in the file LICENSE.GPL included in the packaging of
  10 ** this file.  Please review the following information to ensure GNU
  11 ** General Public Licensing requirements will be met:
  12 ** http://www.trolltech.com/products/qt/opensource.html
  13 **
  14 ** If you are unsure which license is appropriate for your use, please
  15 ** review the following information:
  16 ** http://www.trolltech.com/products/qt/licensing.html or contact the
  17 ** sales department at sales@trolltech.com.
  18 **
  19 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  20 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  21 **
  22 ****************************************************************************/
  23
  24 function tr(s) { return s; }
  25
  26 function Screenshot(parent) {
  27     QWidget.call(this, parent);
  28
  29     this.screenshotLabel = new QLabel();
  30     this.screenshotLabel.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding);
  31     this.screenshotLabel.alignment = Qt.Alignment(Qt.AlignCenter);
  32     this.screenshotLabel.setMinimumSize(240, 160);
  33
  34     this.createOptionsGroupBox();
  35     this.createButtonsLayout();
  36
  37     this.mainLayout = new QVBoxLayout();
  38     this.mainLayout.addWidget(this.screenshotLabel,0 ,0);
  39     this.mainLayout.addWidget(this.optionsGroupBox,0 ,0);
  40     this.mainLayout.addLayout(this.buttonsLayout);
  41     this.setLayout(this.mainLayout);
  42
  43     this.shootScreen();
  44     this.delaySpinBox.setValue(5);
  45
  46     this.windowIcon = new QIcon("classpath:com/trolltech/images/qt-logo.png");
  47     this.windowTitle = tr("Screenshot");
  48     this.resize(300, 200);
  49 }
  50
  51 Screenshot.prototype = new QWidget();
  52
  53 Screenshot.prototype.resizeEvent = function(event) {
  54     var scaledSize = this.originalPixmap.size();
  55     scaledSize.scale(this.screenshotLabel.size, Qt.AspectRatioMode.KeepAspectRatio);
  56     if (this.screenshotLabel.pixmap != null
  57         || scaledSize != this.screenshotLabel.pixmap.size())
  58         this.updateScreenshotLabel();
  59 }
  60
  61 Screenshot.prototype.newScreenshot = function() {
  62     if ( this.hideThisWindowCheckBox.checked)
  63         this.hide();
  64     this.newScreenshotButton.setDisabled(true);
  65
  66     //FIXME
  67     // QTimer.singleShot(this.delaySpinBox.value * 1000,
  68     //                      this, this.shootScreen);
  69     var singleShot = new QTimer();
  70     singleShot.singleShot = true;
  71     singleShot.timeout.connect(this, this.shootScreen);
  72     singleShot.start(this.delaySpinBox.value * 1000);
  73 }
  74
  75 Screenshot.prototype.saveScreenshot = function() {
  76     var format = "png";
  77     var initialPath = QDir.currentPath() + tr("/untitled.") + format;
  78     var filter = tr(format.toUpperCase() + " Files (*." + format + ");;All Files (*)");
  79     var fileName = QFileDialog.getSaveFileName(this, tr("Save As"), initialPath, filter, null, null);
  80     // new QFileDialog.Option.Filter(filter)); //FIXME
  81
  82     if (fileName != "")
  83         this.originalPixmap.save(fileName); //, format); //FIXME
  84 }
  85
  86 Screenshot.prototype.shootScreen = function() {
  87     if ( this.delaySpinBox.value != 0)
  88         QApplication.beep();
  89
  90     this.originalPixmap = null;
  91
  92     this.originalPixmap = QPixmap.grabWindow(
  93         QApplication.desktop().winId());
  94     this.updateScreenshotLabel();
  95
  96     this.newScreenshotButton.enabled = true;
  97     if (this.hideThisWindowCheckBox.checked)
  98         this.show();
  99 }
 100
 101 Screenshot.prototype.updateCheckBox = function() {
 102     if (this.delaySpinBox.value)
 103         this.hideThisWindowCheckBox.setDisabled(true);
 104     else
 105         this.hideThisWindowCheckBox.setDisabled(false);
 106 }
 107
 108 Screenshot.prototype.createOptionsGroupBox = function() {
 109     this.optionsGroupBox = new QGroupBox(tr("Options"));
 110
 111     this.delaySpinBox = new QSpinBox();
 112     this.delaySpinBox.suffix = tr(" s");
 113     this.delaySpinBox.maximum = 60;
 114     this.delaySpinBox.valueChanged.connect(this, this.updateCheckBox);
 115
 116     this.delaySpinBoxLabel = new QLabel(tr("Screenshot Delay:"));
 117
 118     this.hideThisWindowCheckBox = new QCheckBox(tr("Hide This Window"));
 119
 120     this.optionsGroupBoxLayout = new QGridLayout();
 121     this.optionsGroupBoxLayout.addWidget(this.delaySpinBoxLabel, 0, 0);
 122     this.optionsGroupBoxLayout.addWidget(this.delaySpinBox, 0, 1);
 123     this.optionsGroupBoxLayout.addWidget(this.hideThisWindowCheckBox, 1, 0, 1, 2);
 124     this.optionsGroupBox.setLayout(this.optionsGroupBoxLayout);
 125 }
 126
 127 Screenshot.prototype.createButtonsLayout = function() {
 128     this.newScreenshotButton = this.createButton(tr("New Screenshot"), this,
 129                                             this.newScreenshot);
 130
 131     this.saveScreenshotButton = this.createButton(tr("Save Screenshot"), this,
 132                                             this.saveScreenshot);
 133
 134     this.quitScreenshotButton = this.createButton(tr("Quit"), this, this.close);
 135
 136     this.buttonsLayout = new QHBoxLayout();
 137     this.buttonsLayout.addStretch();
 138     this.buttonsLayout.addWidget(this.newScreenshotButton, 0, 0);
 139     this.buttonsLayout.addWidget(this.saveScreenshotButton, 0, 0);
 140     this.buttonsLayout.addWidget(this.quitScreenshotButton, 0, 0);
 141 }
 142
 143 Screenshot.prototype.createButton = function(text, receiver, member) {
 144     var button = new QPushButton(text);
 145     button.clicked.connect(receiver, member);
 146     return button;
 147 }
 148
 149 Screenshot.prototype.updateScreenshotLabel = function() {
 150     this.screenshotLabel.setPixmap(this.originalPixmap.scaled(this.screenshotLabel.size,
 151                                                               Qt.KeepAspectRatio,
 152                                                               Qt.SmoothTransformation));
 153 }
 154
 155 var screenshot = new Screenshot(null);
 156
 157 screenshot.show();
 158 QCoreApplication.exec();