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QcTreeWidget.cpp
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QcTreeWidget.cpp
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/************************************************************************
*
* Copyright 2011-2012 Jakob Leben (jakob.leben@gmail.com)
*
* This file is part of SuperCollider Qt GUI.
*
* 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, see <http://www.gnu.org/licenses/>.
*
************************************************************************/
#include "QcTreeWidget.h"
#include "../QcWidgetFactory.h"
#include <PyrKernel.h>
#include <QKeyEvent>
class QcTreeWidgetFactory : public QcWidgetFactory<QcTreeWidget>
{
void initialize( QWidgetProxy *p, QcTreeWidget *w ) {
p->setMouseEventWidget( w->viewport() );
}
};
QC_DECLARE_FACTORY( QcTreeWidget, QcTreeWidgetFactory );
QcTreeWidget::QcTreeWidget()
{
// Forward signals to argument-less versions connectable from SC.
connect( this, SIGNAL( itemActivated(QTreeWidgetItem*, int) ),
this, SIGNAL( action() ) );
connect( this, SIGNAL( itemPressed(QTreeWidgetItem*, int) ),
this, SIGNAL( itemPressedAction() ) );
connect( this, SIGNAL( currentItemChanged(QTreeWidgetItem*, QTreeWidgetItem*) ),
this, SIGNAL( currentItemChanged() ) );
}
QVariantList QcTreeWidget::columns() const
{
QVariantList varList;
QTreeWidgetItem *header = headerItem();
if( header ) {
for( int i = 0; i < header->columnCount(); ++i ) {
varList << header->text(i);
}
}
return varList;
}
void QcTreeWidget::setColumns( const QVariantList & varList )
{
int count = varList.size();
setColumnCount( count );
QStringList labels;
Q_FOREACH( const QVariant & var, varList )
labels << var.toString();
setHeaderLabels( labels );
}
QcTreeWidget::ItemPtr QcTreeWidget::currentItem() const
{
QTreeWidgetItem *item = QTreeWidget::currentItem();
return QcTreeWidget::Item::safePtr( item );
}
void QcTreeWidget::setCurrentItem( const ItemPtr &item )
{
_emitAction = false;
QTreeWidget::setCurrentItem( item );
_emitAction = true;
}
QcTreeWidget::ItemPtr QcTreeWidget::item( const QcTreeWidget::ItemPtr & parent, int index )
{
QTreeWidgetItem *item =
parent ? parent->child(index) : QTreeWidget::topLevelItem(index);
return QcTreeWidget::Item::safePtr( item );
}
QcTreeWidget::ItemPtr QcTreeWidget::parentItem( const QcTreeWidget::ItemPtr & item )
{
if( !item ) return QcTreeWidget::ItemPtr();
return QcTreeWidget::Item::safePtr( item->parent() );
}
int QcTreeWidget::indexOfItem( const QcTreeWidget::ItemPtr & item )
{
if( !item ) return -1;
QTreeWidgetItem *parent = item->parent();
if( parent )
return parent->indexOfChild( item );
else
return indexOfTopLevelItem( item );
}
QcTreeWidget::ItemPtr QcTreeWidget::addItem (
const QcTreeWidget::ItemPtr & parent, const QVariantList & varList )
{
QStringList strings;
for( int i = 0; i < varList.count(); ++i )
strings << varList[i].toString();
Item *item = new Item( strings );
if( !parent ) addTopLevelItem( item );
else parent->addChild( item );
return item->safePtr();
}
QcTreeWidget::ItemPtr QcTreeWidget::insertItem (
const QcTreeWidget::ItemPtr & parent, int index, const QVariantList & varList )
{
int itemCount = topLevelItemCount();
if( index < 0 || index > itemCount ) return ItemPtr();
QStringList strings;
for( int i = 0; i < varList.count(); ++i )
strings << varList[i].toString();
Item *item = new Item( strings );
if( !parent ) insertTopLevelItem( index, item );
else parent->insertChild( index, item );
if( !item->treeWidget() ) {
delete item;
return ItemPtr();
}
return item->safePtr();
}
void QcTreeWidget::removeItem( const QcTreeWidget::ItemPtr & item )
{
delete item.ptr();
}
QVariantList QcTreeWidget::strings( const QcTreeWidget::ItemPtr & item )
{
QVariantList varList;
if( !item ) return varList;
for( int i = 0; i < item->columnCount(); ++i ) {
varList << item->text(i);
}
return varList;
}
void QcTreeWidget::setText( const QcTreeWidget::ItemPtr &item, int column, const QString & text )
{
if( item ) item->setText( column, text );
}
void QcTreeWidget::setColor( const QcTreeWidget::ItemPtr &item, int column, const QColor & color )
{
if( item ) item->setBackground( column, color );
}
void QcTreeWidget::setTextColor( const QcTreeWidget::ItemPtr & item, int column, const QColor & color )
{
if( item ) item->setData( column, Qt::ForegroundRole, color );
}
QWidget * QcTreeWidget::itemWidget( const QcTreeWidget::ItemPtr &item, int column )
{
return item ? QTreeWidget::itemWidget( item, column ) : 0;
}
void QcTreeWidget::setItemWidget( const QcTreeWidget::ItemPtr &item, int column, QObjectProxy *o )
{
if( !item ) return;
QWidget *w = qobject_cast<QWidget*>(o->object());
if( !w ) return;
QTreeWidget::setItemWidget( item, column, w );
}
void QcTreeWidget::removeItemWidget( const QcTreeWidget::ItemPtr &item, int column )
{
if( item ) QTreeWidget::removeItemWidget( item, column );
}
void QcTreeWidget::sort( int column, bool descending )
{
sortItems( column, descending ? Qt::DescendingOrder : Qt::AscendingOrder );
}
void QcTreeWidget::keyPressEvent( QKeyEvent *e )
{
QTreeWidget::keyPressEvent( e );
switch (e->key())
{
case Qt::Key_Up:
case Qt::Key_Down:
case Qt::Key_Left:
case Qt::Key_Right:
case Qt::Key_PageUp:
case Qt::Key_PageDown:
case Qt::Key_Home:
case Qt::Key_End:
// Prevent propagating to parent when scroller reaches minimum or maximum:
e->accept();
default: break;
}
}
//////////////////////////////// Item //////////////////////////////////////
QcTreeWidget::ItemPtr QcTreeWidget::Item::safePtr( QTreeWidgetItem * item )
{
if( item && item->type() == Item::Type )
return static_cast<Item*>(item)->safePtr();
else
return ItemPtr();
}
void QcTreeWidget::Item::initialize (
VMGlobals *g, PyrObject *obj, const QcTreeWidget::ItemPtr &ptr )
{
Q_ASSERT( isKindOf( obj, SC_CLASS(QTreeViewItem) ) );
if( ptr.id() ) {
// store the SafePtr
QcTreeWidget::ItemPtr *newPtr = new QcTreeWidget::ItemPtr( ptr );
SetPtr( obj->slots+0, newPtr );
// store the id for equality comparison
SetPtr( obj->slots+1, ptr.id() );
// install finalizer
}
else {
SetNil( obj->slots+0 );
SetNil( obj->slots+1 );
}
InstallFinalizer( g, obj, 2, &QcTreeWidget::Item::finalize );
}
int QcTreeWidget::Item::finalize( VMGlobals *g, PyrObject *obj )
{
qcDebugMsg(1,"finalizing QTreeViewItem!");
if( IsPtr( obj->slots+0 ) ) {
QcTreeWidget::ItemPtr *ptr = static_cast<QcTreeWidget::ItemPtr*>( slotRawPtr(obj->slots+0) );
delete ptr;
}
return errNone;
}
bool QcTreeWidget::Item::operator< (const QTreeWidgetItem &other) const
{
int column = treeWidget()->sortColumn();
return text(column).toLower() < other.text(column).toLower();
}