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Diffstat (limited to 'examples/gestures/browser/modelmenu.cpp')
| -rw-r--r-- | examples/gestures/browser/modelmenu.cpp | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/examples/gestures/browser/modelmenu.cpp b/examples/gestures/browser/modelmenu.cpp deleted file mode 100644 index 2e81d0d..0000000 --- a/examples/gestures/browser/modelmenu.cpp +++ /dev/null @@ -1,227 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the either Technology Preview License Agreement or the -** Beta Release License Agreement. -** -** 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 http://www.qtsoftware.com/contact. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "modelmenu.h" - -#include <QtCore/QAbstractItemModel> -#include <qdebug.h> - -ModelMenu::ModelMenu(QWidget * parent) - : QMenu(parent) - , m_maxRows(7) - , m_firstSeparator(-1) - , m_maxWidth(-1) - , m_hoverRole(0) - , m_separatorRole(0) - , m_model(0) -{ - connect(this, SIGNAL(aboutToShow()), this, SLOT(aboutToShow())); -} - -bool ModelMenu::prePopulated() -{ - return false; -} - -void ModelMenu::postPopulated() -{ -} - -void ModelMenu::setModel(QAbstractItemModel *model) -{ - m_model = model; -} - -QAbstractItemModel *ModelMenu::model() const -{ - return m_model; -} - -void ModelMenu::setMaxRows(int max) -{ - m_maxRows = max; -} - -int ModelMenu::maxRows() const -{ - return m_maxRows; -} - -void ModelMenu::setFirstSeparator(int offset) -{ - m_firstSeparator = offset; -} - -int ModelMenu::firstSeparator() const -{ - return m_firstSeparator; -} - -void ModelMenu::setRootIndex(const QModelIndex &index) -{ - m_root = index; -} - -QModelIndex ModelMenu::rootIndex() const -{ - return m_root; -} - -void ModelMenu::setHoverRole(int role) -{ - m_hoverRole = role; -} - -int ModelMenu::hoverRole() const -{ - return m_hoverRole; -} - -void ModelMenu::setSeparatorRole(int role) -{ - m_separatorRole = role; -} - -int ModelMenu::separatorRole() const -{ - return m_separatorRole; -} - -Q_DECLARE_METATYPE(QModelIndex) -void ModelMenu::aboutToShow() -{ - if (QMenu *menu = qobject_cast<QMenu*>(sender())) { - QVariant v = menu->menuAction()->data(); - if (v.canConvert<QModelIndex>()) { - QModelIndex idx = qvariant_cast<QModelIndex>(v); - createMenu(idx, -1, menu, menu); - disconnect(menu, SIGNAL(aboutToShow()), this, SLOT(aboutToShow())); - return; - } - } - - clear(); - if (prePopulated()) - addSeparator(); - int max = m_maxRows; - if (max != -1) - max += m_firstSeparator; - createMenu(m_root, max, this, this); - postPopulated(); -} - -void ModelMenu::createMenu(const QModelIndex &parent, int max, QMenu *parentMenu, QMenu *menu) -{ - if (!menu) { - QString title = parent.data().toString(); - menu = new QMenu(title, this); - QIcon icon = qvariant_cast<QIcon>(parent.data(Qt::DecorationRole)); - menu->setIcon(icon); - parentMenu->addMenu(menu); - QVariant v; - v.setValue(parent); - menu->menuAction()->setData(v); - connect(menu, SIGNAL(aboutToShow()), this, SLOT(aboutToShow())); - return; - } - - int end = m_model->rowCount(parent); - if (max != -1) - end = qMin(max, end); - - connect(menu, SIGNAL(triggered(QAction*)), this, SLOT(triggered(QAction*))); - connect(menu, SIGNAL(hovered(QAction*)), this, SLOT(hovered(QAction*))); - - for (int i = 0; i < end; ++i) { - QModelIndex idx = m_model->index(i, 0, parent); - if (m_model->hasChildren(idx)) { - createMenu(idx, -1, menu); - } else { - if (m_separatorRole != 0 - && idx.data(m_separatorRole).toBool()) - addSeparator(); - else - menu->addAction(makeAction(idx)); - } - if (menu == this && i == m_firstSeparator - 1) - addSeparator(); - } -} - -QAction *ModelMenu::makeAction(const QModelIndex &index) -{ - QIcon icon = qvariant_cast<QIcon>(index.data(Qt::DecorationRole)); - QAction *action = makeAction(icon, index.data().toString(), this); - QVariant v; - v.setValue(index); - action->setData(v); - return action; -} - -QAction *ModelMenu::makeAction(const QIcon &icon, const QString &text, QObject *parent) -{ - QFontMetrics fm(font()); - if (-1 == m_maxWidth) - m_maxWidth = fm.width(QLatin1Char('m')) * 30; - QString smallText = fm.elidedText(text, Qt::ElideMiddle, m_maxWidth); - return new QAction(icon, smallText, parent); -} - -void ModelMenu::triggered(QAction *action) -{ - QVariant v = action->data(); - if (v.canConvert<QModelIndex>()) { - QModelIndex idx = qvariant_cast<QModelIndex>(v); - emit activated(idx); - } -} - -void ModelMenu::hovered(QAction *action) -{ - QVariant v = action->data(); - if (v.canConvert<QModelIndex>()) { - QModelIndex idx = qvariant_cast<QModelIndex>(v); - QString hoveredString = idx.data(m_hoverRole).toString(); - if (!hoveredString.isEmpty()) - emit hovered(hoveredString); - } -} - |