/tools/assistant/tools/assistant/aboutdialog.cpp
C++ | 184 lines | 120 code | 24 blank | 40 comment | 12 complexity | 7a59972e92aaba18d9b4e1f9e65f1f57 MD5 | raw file
- /****************************************************************************
- **
- ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
- ** All rights reserved.
- ** Contact: Nokia Corporation (qt-info@nokia.com)
- **
- ** This file is part of the Qt Assistant of the Qt Toolkit.
- **
- ** $QT_BEGIN_LICENSE:LGPL$
- ** GNU Lesser General Public License Usage
- ** 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 1.1, 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.
- **
- ** Other Usage
- ** Alternatively, this file may be used in accordance with the terms and
- ** conditions contained in a signed written agreement between you and Nokia.
- **
- **
- **
- **
- **
- ** $QT_END_LICENSE$
- **
- ****************************************************************************/
- #include "aboutdialog.h"
- #include "helpviewer.h"
- #include "tracer.h"
- #include <QtCore/QBuffer>
- #include <QtGui/QLabel>
- #include <QtGui/QPushButton>
- #include <QtGui/QLayout>
- #include <QtGui/QApplication>
- #include <QtGui/QDesktopWidget>
- #include <QtGui/QMessageBox>
- #include <QtGui/QDesktopServices>
- QT_BEGIN_NAMESPACE
- AboutLabel::AboutLabel(QWidget *parent)
- : QTextBrowser(parent)
- {
- TRACE_OBJ
- setFrameStyle(QFrame::NoFrame);
- QPalette p;
- p.setColor(QPalette::Base, p.color(QPalette::Background));
- setPalette(p);
- }
- void AboutLabel::setText(const QString &text, const QByteArray &resources)
- {
- TRACE_OBJ
- QDataStream in(resources);
- in >> m_resourceMap;
- QTextBrowser::setText(text);
- }
- QSize AboutLabel::minimumSizeHint() const
- {
- TRACE_OBJ
- QTextDocument *doc = document();
- doc->adjustSize();
- return QSize(int(doc->size().width()), int(doc->size().height()));
- }
- QVariant AboutLabel::loadResource(int type, const QUrl &name)
- {
- TRACE_OBJ
- if (type == 2 || type == 3) {
- if (m_resourceMap.contains(name.toString())) {
- return m_resourceMap.value(name.toString());
- }
- }
- return QVariant();
- }
- void AboutLabel::setSource(const QUrl &url)
- {
- TRACE_OBJ
- if (url.isValid() && (!HelpViewer::isLocalUrl(url)
- || !HelpViewer::canOpenPage(url.path()))) {
- if (!QDesktopServices::openUrl(url)) {
- QMessageBox::warning(this, tr("Warning"),
- tr("Unable to launch external application.\n"), tr("OK"));
- }
- }
- }
- AboutDialog::AboutDialog(QWidget *parent)
- : QDialog(parent, Qt::MSWindowsFixedSizeDialogHint |
- Qt::WindowTitleHint|Qt::WindowSystemMenuHint)
- {
- TRACE_OBJ
- m_pixmapLabel = 0;
- m_aboutLabel = new AboutLabel();
- m_closeButton = new QPushButton();
- m_closeButton->setText(tr("&Close"));
- connect(m_closeButton, SIGNAL(clicked()), this, SLOT(close()));
- m_layout = new QGridLayout(this);
- m_layout->addWidget(m_aboutLabel, 1, 0, 1, -1);
- m_layout->addItem(new QSpacerItem(20, 10, QSizePolicy::Minimum,
- QSizePolicy::Fixed), 2, 1, 1, 1);
- m_layout->addItem(new QSpacerItem(20, 20, QSizePolicy::Expanding), 3, 0, 1, 1);
- m_layout->addWidget(m_closeButton, 3, 1, 1, 1);
- m_layout->addItem(new QSpacerItem(20, 20, QSizePolicy::Expanding), 3, 2, 1, 1);
- }
- void AboutDialog::setText(const QString &text, const QByteArray &resources)
- {
- TRACE_OBJ
- m_aboutLabel->setText(text, resources);
- updateSize();
- }
- void AboutDialog::setPixmap(const QPixmap &pixmap)
- {
- TRACE_OBJ
- if (!m_pixmapLabel) {
- m_pixmapLabel = new QLabel();
- m_layout->addWidget(m_pixmapLabel, 0, 0, 1, -1, Qt::AlignCenter);
- }
- m_pixmapLabel->setPixmap(pixmap);
- updateSize();
- }
- QString AboutDialog::documentTitle() const
- {
- TRACE_OBJ
- return m_aboutLabel->documentTitle();
- }
- void AboutDialog::updateSize()
- {
- TRACE_OBJ
- QSize screenSize = QApplication::desktop()->availableGeometry(QCursor::pos())
- .size();
- int limit = qMin(screenSize.width()/2, 500);
- #ifdef Q_WS_MAC
- limit = qMin(screenSize.width()/2, 420);
- #endif
- layout()->activate();
- int width = layout()->totalMinimumSize().width();
- if (width > limit)
- width = limit;
- QFontMetrics fm(qApp->font("QWorkspaceTitleBar"));
- int windowTitleWidth = qMin(fm.width(windowTitle()) + 50, limit);
- if (windowTitleWidth > width)
- width = windowTitleWidth;
- layout()->activate();
- int height = (layout()->hasHeightForWidth())
- ? layout()->totalHeightForWidth(width)
- : layout()->totalMinimumSize().height();
- setFixedSize(width, height);
- QCoreApplication::removePostedEvents(this, QEvent::LayoutRequest);
- }
- QT_END_NAMESPACE