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-rw-r--r--src/plugins/help/openpagesswitcher.cpp151
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diff --git a/src/plugins/help/openpagesswitcher.cpp b/src/plugins/help/openpagesswitcher.cpp
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+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation ([email protected])
+**
+** 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#include "openpagesswitcher.h"
+
+#include "centralwidget.h"
+#include "openpagesmodel.h"
+#include "openpageswidget.h"
+
+#include <QtCore/QEvent>
+
+#include <QtGui/QKeyEvent>
+
+using namespace Help::Internal;
+
+const int gMargin = 4;
+const int gWidth = 300;
+const int gHeight = 200;
+
+OpenPagesSwitcher::OpenPagesSwitcher(OpenPagesModel *model)
+ : QWidget(0, Qt::Popup)
+ , m_openPagesModel(model)
+{
+ resize(gWidth, gHeight);
+
+ m_openPagesWidget = new OpenPagesWidget(m_openPagesModel, this);
+
+ m_openPagesWidget->allowContextMenu(false);
+ m_openPagesWidget->installEventFilter(this);
+ m_openPagesWidget->setTextElideMode(Qt::ElideMiddle);
+ m_openPagesWidget->setGeometry(gMargin, gMargin, gWidth - 2 * gMargin,
+ gHeight - 2 * gMargin);
+
+ connect(m_openPagesWidget, SIGNAL(closePage(QModelIndex)), this,
+ SIGNAL(closePage(QModelIndex)));
+ connect(m_openPagesWidget, SIGNAL(setCurrentPage(QModelIndex)), this,
+ SIGNAL(setCurrentPage(QModelIndex)));
+}
+
+OpenPagesSwitcher::~OpenPagesSwitcher()
+{
+}
+
+void OpenPagesSwitcher::gotoNextPage()
+{
+ selectPageUpDown(-1);
+}
+
+void OpenPagesSwitcher::gotoPreviousPage()
+{
+ selectPageUpDown(1);
+}
+
+void OpenPagesSwitcher::selectAndHide()
+{
+ setVisible(false);
+ emit setCurrentPage(m_openPagesWidget->currentIndex());
+}
+
+void OpenPagesSwitcher::selectCurrentPage()
+{
+ m_openPagesWidget->selectCurrentPage();
+}
+
+void OpenPagesSwitcher::setVisible(bool visible)
+{
+ QWidget::setVisible(visible);
+ if (visible)
+ setFocus();
+}
+
+void OpenPagesSwitcher::focusInEvent(QFocusEvent *event)
+{
+ Q_UNUSED(event)
+ m_openPagesWidget->setFocus();
+}
+
+bool OpenPagesSwitcher::eventFilter(QObject *object, QEvent *event)
+{
+ if (object == m_openPagesWidget) {
+ if (event->type() == QEvent::KeyPress) {
+ QKeyEvent *ke = static_cast<QKeyEvent*>(event);
+ if (ke->key() == Qt::Key_Escape) {
+ setVisible(false);
+ return true;
+ }
+
+ const int key = ke->key();
+ if (key == Qt::Key_Return || key == Qt::Key_Enter || key == Qt::Key_Space) {
+ emit setCurrentPage(m_openPagesWidget->currentIndex());
+ return true;
+ }
+ } else if (event->type() == QEvent::KeyRelease) {
+ QKeyEvent *ke = static_cast<QKeyEvent*>(event);
+ if (ke->modifiers() == 0
+ /*HACK this is to overcome some event inconsistencies between platforms*/
+ || (ke->modifiers() == Qt::AltModifier
+ && (ke->key() == Qt::Key_Alt || ke->key() == -1))) {
+ selectAndHide();
+ }
+ }
+ }
+ return QWidget::eventFilter(object, event);
+}
+
+void OpenPagesSwitcher::selectPageUpDown(int summand)
+{
+ const int pageCount = m_openPagesModel->rowCount();
+ if (pageCount < 2)
+ return;
+
+ const QModelIndexList &list = m_openPagesWidget->selectionModel()->selectedIndexes();
+ if (list.isEmpty())
+ return;
+
+ QModelIndex index = list.first();
+ if (!index.isValid())
+ return;
+
+ index = m_openPagesModel->index((index.row() + summand + pageCount) % pageCount, 0);
+ if (index.isValid()) {
+ m_openPagesWidget->setCurrentIndex(index);
+ m_openPagesWidget->scrollTo(index, QAbstractItemView::PositionAtCenter);
+ }
+}