summaryrefslogtreecommitdiff
path: root/src/modelmenu.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/modelmenu.cpp')
-rw-r--r--src/modelmenu.cpp228
1 files changed, 228 insertions, 0 deletions
diff --git a/src/modelmenu.cpp b/src/modelmenu.cpp
new file mode 100644
index 00000000..cc43a3f3
--- /dev/null
+++ b/src/modelmenu.cpp
@@ -0,0 +1,228 @@
+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2007-2008 Trolltech ASA. All rights reserved
+* Copyright (C) 2008-2009 by Andrea Diamantini <adjam7 at gmail dot com>
+*
+*
+* This program is free software; you can redistribute it
+* and/or modify it under the terms of the GNU General
+* Public License as published by the Free Software Foundation;
+* either version 2, or (at your option) any later version.
+*
+* 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.
+*
+* ============================================================ */
+
+
+#include "modelmenu.h"
+
+
+ModelMenu::ModelMenu(QWidget * parent)
+ : KMenu(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();
+ }
+}
+
+KAction *ModelMenu::makeAction(const QModelIndex &index)
+{
+ QIcon icon = qvariant_cast<QIcon>(index.data(Qt::DecorationRole));
+ KAction *action = (KAction *) makeAction(KIcon(icon), index.data().toString(), this);
+ QVariant v;
+ v.setValue(index);
+ action->setData(v);
+ return action;
+}
+
+KAction *ModelMenu::makeAction(const KIcon &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 KAction(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);
+ }
+}