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Diffstat (limited to 'src/__TODO/AboutDialogGraphicsView.cpp')
| -rw-r--r-- | src/__TODO/AboutDialogGraphicsView.cpp | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/src/__TODO/AboutDialogGraphicsView.cpp b/src/__TODO/AboutDialogGraphicsView.cpp new file mode 100644 index 0000000..3c031f2 --- /dev/null +++ b/src/__TODO/AboutDialogGraphicsView.cpp @@ -0,0 +1,220 @@ +/*************************************************************************** +* Copyright (C) 2006-2012 by Thomas Schweitzer * +* thomas-schweitzer(at)arcor.de * +* * +* This program is free software; you can redistribute it and/or modify * +* it under the terms of the GNU General Public License version 2.0 as * +* published by the Free Software Foundation. * +* * +* This program is distributed in the hope that it will be useful, * +* but WITHOUT ANY WARRANTY; without even the implied warranty of * +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * +* GNU General Public License for more details. * +* * +* You should have received a copy of the GNU General Public License * +* along with this program in the file LICENSE.GPL; if not, write to the * +* Free Software Foundation, Inc., * +* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * +***************************************************************************/ + +#include "AboutDialogGraphicsView.h" + +#include "AboutDialog.h" + +#include <tqtgui.h> +#include <tntqdesktopwidget.h> +#include <tqdate.h> +#include <tqtimeline.h> +#include <tntqsplashscreen.h> + +/*! + \class AboutDialogGraphicsView + \brief A container for the real \a AboutDialog. Makes the 3D animation possible. + + The 3D animation shall suggest the user, that he is looking at his desktop, while + this animation is done. Since this is not directly possible, \a AboutDialogGraphicsView + when shown starts in frameless fullscreen mode with a screenshot of the desktop as background. +*/ + +/*! + \brief The constructor initializes everything needed for the 3D animation. + */ +AboutDialogGraphicsView::AboutDialogGraphicsView(AboutDialog *aboutDialog, TQWidget *parentWindow) : + TQGraphicsView(parentWindow), _aboutDialog(NULL), _graphicsProxyWidget(NULL), + _parentWindow(NULL), _timeLine(NULL), _aboutDialogAsSplashScreen(NULL) +{ + _parentWindow = parentWindow; + setWindowFlags(TQt::SplashScreen); + +#ifdef Q_OS_LINUX + TQRect availableGeometry = TQApplication::desktop()->availableGeometry(); + TQRect newGeometry = TQRect(availableGeometry.x(), + availableGeometry.y(), availableGeometry.width(), availableGeometry.height()); +#else + TQRect newGeometry = TQRect(-1, -1, + TQApplication::desktop()->rect().width() + 2, + TQApplication::desktop()->rect().height() + 2); +#endif + setGeometry(newGeometry); + + _aboutDialog = aboutDialog; + + _windowTitleBarWidth = 0; + _windowPosOffset = 0; + + TQGraphicsScene *scene = new TQGraphicsScene(this); + setSceneRect(newGeometry); + _aboutDialogAsSplashScreen = new TQSplashScreen(this); + _graphicsProxyWidget = scene->addWidget(_aboutDialogAsSplashScreen); + _graphicsProxyWidget->setWindowFlags(TQt::ToolTip); + + setScene(scene); + setRenderHint(TQPainter::Antialiasing); + + setCacheMode(TQGraphicsView::CacheBackground); + setViewportUpdateMode(TQGraphicsView::BoundingRectViewportUpdate); + + connect(_aboutDialog, SIGNAL(finished(int)), this, SLOT(hide())); + + //setWindowOpacity(0.9); + + setVerticalScrollBarPolicy(TQt::ScrollBarAlwaysOff); + setHorizontalScrollBarPolicy(TQt::ScrollBarAlwaysOff); + setStyleSheet("AboutDialogGraphicsView { border: 0px; }"); + + _timeLine = new TQTimeLine(1000, this); + _timeLine->setFrameRange(270, 0); + //_timeLine->setUpdateInterval(10); + //_timeLine->setCurveShape(TQTimeLine::EaseInCurve); + connect(_timeLine, SIGNAL(frameChanged(int)), this, SLOT(updateStep(int))); +} + +AboutDialogGraphicsView::~AboutDialogGraphicsView(void) +{ +} + +/*! + \brief Grabs a screenshot of the full desktop and shows that as background. Above that background the + AboutDialog 3D animation is shown. Also grabs the content of the AboutDialog itself. + */ +void AboutDialogGraphicsView::show() +{ + // Because on X11 system the window decoration is only available after a widget has been shown + // once, + // we can detect _windowTitleBarWidth here for the first time. + _windowTitleBarWidth = _parentWindow->geometry().y() - _parentWindow->y(); + // If the _windowTitleBarWidth could not be determined, try it a second way. Even the chances are + // low to get good results. + if (_windowTitleBarWidth == 0) + { + _windowTitleBarWidth = _parentWindow->frameGeometry().height() - + _parentWindow->geometry().height(); + } +#ifdef Q_OS_LINUX + if (_windowTitleBarWidth == 0) + { + //TODO: 27 pixel is a fix value for the Ubuntu 10.4 default window theme and so just a + // workaround for that specific case. + _windowPosOffset = 27; + _windowTitleBarWidth = 27; + } +#endif + TQPixmap originalPixmap = TQPixmap::grabWindow( + TQApplication::desktop()->winId(), + TQApplication::desktop()->availableGeometry().x(), + TQApplication::desktop()->availableGeometry().y(), geometry().width(), + geometry().height()); + TQBrush brush(originalPixmap); + TQTransform transform; + transform.translate(0, TQApplication::desktop()->availableGeometry().y()); + brush.setTransform(transform); + + setBackgroundBrush(brush); + + _aboutDialogAsSplashScreen->setPixmap(TQPixmap::grabWidget(_aboutDialog)); + _graphicsProxyWidget->setGeometry(_aboutDialog->geometry()); + _aboutDialog->hide(); + _graphicsProxyWidget->setPos(_parentWindow->geometry().x() + + (_parentWindow->geometry().width() - _graphicsProxyWidget->geometry().width()) / 2, + _parentWindow->y() + _windowTitleBarWidth - _windowPosOffset); + + TQRectF r = _graphicsProxyWidget->boundingRect(); + _graphicsProxyWidget->setTransform(TQTransform().translate( + r.width() / 2, -_windowTitleBarWidth).rotate(270, TQt::XAxis) + //.rotate(90, TQt::YAxis) + //.rotate(5, TQt::ZAxis) + //.scale(1 + 1.5 * step, 1 + 1.5 * step) + .translate(-r.width() / 2, _windowTitleBarWidth)); + + _graphicsProxyWidget->show(); + //_aboutDialogAsSplashScreen->show(); + TQGraphicsView::show(); + + connect(_timeLine, SIGNAL(finished()), this, SLOT(showAboutDialog())); + _timeLine->setDirection(TQTimeLine::Forward); + _timeLine->start(); +} + +/*! + \brief Does the next calculation/transformation step. + */ +void AboutDialogGraphicsView::updateStep(int step) +{ + TQRectF r = _graphicsProxyWidget->boundingRect(); + _graphicsProxyWidget->setTransform(TQTransform().translate( + r.width() / 2, -_windowTitleBarWidth).rotate(step, TQt::XAxis) + //.rotate(step, TQt::YAxis) + //.rotate(step * 5, TQt::ZAxis) + //.scale(1 + 1.5 * step, 1 + 1.5 * step) + .translate(-r.width() / 2, _windowTitleBarWidth)); + //update(); +} + +/*! + \brief Stops the 3D animation, moves the AboutDialog to the correct place and really shows it. + */ +void AboutDialogGraphicsView::showAboutDialog() +{ + //hide(); + disconnect(_timeLine, SIGNAL(finished()), this, SLOT(showAboutDialog())); + _aboutDialog->move(int(_parentWindow->geometry().x() + + (_parentWindow->geometry().width() - _graphicsProxyWidget->geometry().width()) / 2), + _parentWindow->y() + _windowTitleBarWidth - _windowPosOffset); + _aboutDialog->exec(); +} + +/*! + \brief Does not directly hide the AboutDialog but instead starts the "fade out" 3D animation. + */ +void AboutDialogGraphicsView::hide() +{ + _graphicsProxyWidget->setPos(_parentWindow->geometry().x() + + (_parentWindow->geometry().width() - _graphicsProxyWidget->geometry().width()) / 2, + _parentWindow->y() + _windowTitleBarWidth - _windowPosOffset); + + TQRectF r = _graphicsProxyWidget->boundingRect(); + _graphicsProxyWidget->setTransform(TQTransform().translate( + r.width() / 2, -_windowTitleBarWidth).rotate(0, TQt::XAxis) + //.rotate(90, TQt::YAxis) + //.rotate(5, TQt::ZAxis) + //.scale(1 + 1.5 * step, 1 + 1.5 * step) + .translate(-r.width() / 2, _windowTitleBarWidth)); + + _graphicsProxyWidget->show(); + //_aboutDialogAsSplashScreen->show(); + TQGraphicsView::show(); + + connect(_timeLine, SIGNAL(finished()), this, SLOT(hideReally())); + _timeLine->setDirection(TQTimeLine::Backward); + _timeLine->start(); +} + +/*! + \brief This slot really hides this AboutDialog container. + */ +void AboutDialogGraphicsView::hideReally() +{ + disconnect(_timeLine, SIGNAL(finished()), this, SLOT(hideReally())); + TQGraphicsView::hide(); + _parentWindow->activateWindow(); +} |