[vlc-commits] Qt: first attempt at a QMenuView
Jean-Baptiste Kempf
git at videolan.org
Sun Oct 9 23:35:36 CEST 2011
vlc | branch: master | Jean-Baptiste Kempf <jb at videolan.org> | Fri Oct 7 17:07:06 2011 +0200| [6196b0322f5f89b7c27c4b985faa662f98be777c] | committer: Jean-Baptiste Kempf
Qt: first attempt at a QMenuView
> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=6196b0322f5f89b7c27c4b985faa662f98be777c
---
modules/gui/qt4/Modules.am | 3 +
modules/gui/qt4/util/qmenuview.cpp | 123 ++++++++++++++++++++++++++++++++++++
modules/gui/qt4/util/qmenuview.hpp | 57 +++++++++++++++++
3 files changed, 183 insertions(+), 0 deletions(-)
diff --git a/modules/gui/qt4/Modules.am b/modules/gui/qt4/Modules.am
index e3c9310..22c2277 100644
--- a/modules/gui/qt4/Modules.am
+++ b/modules/gui/qt4/Modules.am
@@ -70,6 +70,7 @@ nodist_SOURCES_qt4 = \
util/timetooltip.moc.cpp \
util/customwidgets.moc.cpp \
util/searchlineedit.moc.cpp \
+ util/qmenuview.moc.cpp \
util/qvlcapp.moc.cpp \
util/pictureflow.moc.cpp \
util/buttons/RoundButton.moc.cpp \
@@ -309,6 +310,7 @@ SOURCES_qt4 = qt4.cpp \
util/customwidgets.cpp \
util/searchlineedit.cpp \
util/registry.cpp \
+ util/qmenuview.cpp \
util/qt_dirs.cpp \
util/pictureflow.cpp \
util/buttons/BrowseButton.cpp \
@@ -389,6 +391,7 @@ noinst_HEADERS = \
util/searchlineedit.hpp \
util/qvlcframe.hpp \
util/qvlcapp.hpp \
+ util/qmenuview.hpp \
util/qt_dirs.hpp \
util/registry.hpp \
util/pictureflow.hpp \
diff --git a/modules/gui/qt4/util/qmenuview.cpp b/modules/gui/qt4/util/qmenuview.cpp
new file mode 100644
index 0000000..d409812
--- /dev/null
+++ b/modules/gui/qt4/util/qmenuview.cpp
@@ -0,0 +1,123 @@
+/*****************************************************************************
+ * QMenuView
+ ****************************************************************************
+ * Copyright © 2011 VLC authors and VideoLAN
+ * $Id$
+ *
+ * Authors: Jean-Baptiste Kempf <jb at videolan.org>
+ *
+ * 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 of the License, 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#include "qt4.hpp"
+#include "util/qmenuview.hpp"
+
+#include "components/playlist/vlc_model.hpp" /* data( IsCurrentRole ) */
+
+#include <QFont>
+#include <QVariant>
+#include <assert.h>
+
+
+/***
+ * This is a simple view, like a QListView, but displayed as a QMenu
+ * So far, this is quite limited.
+ *
+ * This is now linked to VLC's models. It should be splittable in the future.
+ *
+ * TODO: - limit the number of the menu, as a Q_PROPERTY
+ * - limit the width of the entries
+ * - deal with a root item
+ ***/
+
+Q_DECLARE_METATYPE(QModelIndex); // So we can store it in a QVariant
+
+QMenuView::QMenuView( QWidget * parent )
+ : QMenu( parent )
+{
+ m_model = NULL;
+
+ /* Rebuild the Menu just before showing it */
+ CONNECT( this, aboutToShow(), this, rebuild() );
+
+ /* */
+ CONNECT( this, triggered(QAction*), this, activate(QAction*) );
+}
+
+/* */
+void QMenuView::rebuild()
+{
+ if( !m_model )
+ return;
+
+ /* Clear all Items */
+ clear();
+
+ /* Rebuild from root */
+ build( QModelIndex() );
+}
+
+/* */
+void QMenuView::build( const QModelIndex &parent )
+{
+ for( int i = 0; i < m_model->rowCount( parent ); i++ )
+ {
+ QModelIndex idx = m_model->index(i, 0, parent);
+ if( m_model->hasChildren( idx ) )
+ {
+ build( idx );
+ }
+ else
+ {
+ addAction( createActionFromIndex( idx ) );
+ }
+ }
+}
+
+/* Create individual actions */
+QAction* QMenuView::createActionFromIndex( QModelIndex index )
+{
+ QIcon icon = qvariant_cast<QIcon>( index.data( Qt::DecorationRole ) );
+ QAction * action = new QAction( icon, index.data().toString(), this );
+
+ /* Display in bold the active element */
+ if( index.data( VLCModel::IsCurrentRole ).toBool() )
+ {
+ QFont font; font.setBold ( true );
+ action->setFont( font );
+ }
+
+ /* Some items could be hypothetically disabled */
+ action->setEnabled( index.flags().testFlag( Qt::ItemIsEnabled ) );
+
+ /* */
+ QVariant variant; variant.setValue( index );
+ action->setData( variant );
+
+ return action;
+}
+
+/* QMenu action trigger */
+void QMenuView::activate( QAction* action )
+{
+ assert( m_model );
+
+ QVariant variant = action->data();
+ if( variant.canConvert<QModelIndex>() )
+ {
+ emit activated( variant.value<QModelIndex>());
+ }
+}
+
diff --git a/modules/gui/qt4/util/qmenuview.hpp b/modules/gui/qt4/util/qmenuview.hpp
new file mode 100644
index 0000000..8564ec1
--- /dev/null
+++ b/modules/gui/qt4/util/qmenuview.hpp
@@ -0,0 +1,57 @@
+/*****************************************************************************
+ * QMenuView
+ ****************************************************************************
+ * Copyright © 2011 VLC authors and VideoLAN
+ * $Id$
+ *
+ * Authors: Jean-Baptiste Kempf <jb at videolan.org>
+ *
+ * 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 of the License, 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifndef _QMENU_VIEW_H_
+#define _QMENU_VIEW_H_
+
+#include <QMenu>
+#include <QAbstractItemModel>
+
+class QMenuView : public QMenu
+{
+ Q_OBJECT;
+
+public:
+ QMenuView( QWidget * parent = 0 );
+ virtual ~QMenuView(){}
+
+ /* Model */
+ void setModel( QAbstractItemModel * model ) { m_model = model; }
+ QAbstractItemModel * model() const { return m_model; }
+
+private:
+ QAbstractItemModel *m_model;
+
+ QAction *createActionFromIndex( QModelIndex index );
+
+ void build( const QModelIndex &parent );
+
+private slots:
+ void rebuild();
+ void activate(QAction*);
+
+signals:
+ void activated( const QModelIndex & index );
+};
+
+#endif
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