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authorJocelyn Turcotte <jocelyn.turcotte@digia.com>2014-03-10 16:37:18 +0100
committerThe Qt Project <gerrit-noreply@qt-project.org>2014-03-19 11:14:11 +0100
commit482a89fb431da3430bdfd4a1f9a93d66b8254163 (patch)
tree2c0539f2be47a27f63888103c8a593276cd42ac0 /examples/webenginewidgets/browser/modelmenu.cpp
parentf8d1105adde03a52806e0f19cc652f2dca6bb78f (diff)
Rename example directories to match the source install destination
To match other modules example directory structures we should deploy our examples in a directory matching the module name, webengine and webenginewidgets in our case. qmake uses the relative directory of each example up to the upper "examples" directory to decide where they will be deployed when running the sources install target. Change-Id: I59ce7ff8a30f98fad20064c7eecf72b784f1d275 Reviewed-by: Pierre Rossi <pierre.rossi@gmail.com>
Diffstat (limited to 'examples/webenginewidgets/browser/modelmenu.cpp')
-rw-r--r--examples/webenginewidgets/browser/modelmenu.cpp226
1 files changed, 226 insertions, 0 deletions
diff --git a/examples/webenginewidgets/browser/modelmenu.cpp b/examples/webenginewidgets/browser/modelmenu.cpp
new file mode 100644
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+++ b/examples/webenginewidgets/browser/modelmenu.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia. For licensing terms and
+** conditions see http://qt.digia.com/licensing. For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights. These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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);
+ }
+}