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/*
* Copyright (c) 2002-2003 Jesper K. Pedersen <blackie@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License version 2 as published by the Free Software Foundation.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
**/
#include "dragaccepter.h"
#include "concwidget.h"
#include <qpainter.h>
DragAccepter::DragAccepter(RegExpEditorWindow* editorWindow, RegExpWidget *parent,
const char *name)
: RegExpWidget(editorWindow, parent, name == 0 ? "dragaccepter" : name ),
_drawLine( false )
{
setAcceptDrops(TRUE);
}
QSize DragAccepter::sizeHint() const
{
return QSize(10,10);
}
void DragAccepter::paintEvent(QPaintEvent *e)
{
QPainter painter(this);
drawPossibleSelection( painter, size() );
if ( _drawLine )
painter.drawLine( 0, height()/2, width(), height()/2 );
RegExpWidget::paintEvent(e);
}
void DragAccepter::mousePressEvent ( QMouseEvent* event )
{
if ( event->button() == RightButton ) {
_editorWindow->showRMBMenu( _editorWindow->hasSelection() );
}
else {
RegExpWidget::mousePressEvent( event );
}
}
void DragAccepter::mouseReleaseEvent( QMouseEvent* event )
{
if ( _editorWindow->isPasteing() && event->button() == LeftButton ) {
RegExp* regexp = _editorWindow->pasteData();
RegExpWidget *newElm = WidgetFactory::createWidget( regexp, _editorWindow, 0 );
if ( newElm ) {
ConcWidget* elm;
if (! (elm = dynamic_cast<ConcWidget*>( newElm ) ) ) {
elm = new ConcWidget( _editorWindow, newElm, 0 );
}
Q_ASSERT( elm );
RegExpWidget *w = dynamic_cast<RegExpWidget*>(parent());
if (w)
w->addNewConcChild(this, elm);
_editorWindow->updateContent( this );
_editorWindow->clearSelection( true );
}
}
else if ( _editorWindow->isInserting() && event->button() == LeftButton ) {
if ( WidgetFactory::isContainer( _editorWindow->insertType() ) &&
_editorWindow->pointSelected( mapToGlobal( event->pos() ) ) ) {
RegExpWidget::mouseReleaseEvent( event );
}
else {
RegExpWidget *child = WidgetFactory::createWidget( _editorWindow,
dynamic_cast<QWidget*>(parent()),
_editorWindow->insertType() );
if ( child ) {
RegExpWidget *w = dynamic_cast<RegExpWidget*>(parent());
if (w)
w->addNewChild(this, child);
_editorWindow->updateContent( child );
child->setFocus();
_editorWindow->clearSelection( true );
}
}
}
_editorWindow->slotEndActions();
}
void DragAccepter::dragEnterEvent(QDragEnterEvent *event)
{
bool selfDrag = ( event->source() && event->source()->topLevelWidget() == topLevelWidget() && _isSelected );
event->accept(RegExpWidgetDrag::canDecode( event ) && !selfDrag );
}
void DragAccepter::dropEvent(QDropEvent *event)
{
// The widget will be reparent afterward or part of it will, so no need to give
// it a parent here.
RegExpWidget *newElm = RegExpWidgetDrag::decode( event, _editorWindow, 0 );
ConcWidget* elm;
if ( !(elm = dynamic_cast<ConcWidget*>( newElm ) ) ) {
elm = new ConcWidget( _editorWindow, newElm, 0 );
}
Q_ASSERT( elm );
RegExpWidget *rew = dynamic_cast<RegExpWidget*>(parent());
if (rew)
rew->addNewConcChild(this, elm);
QWidget *w = dynamic_cast<QWidget*>(parent());
if (w)
w->update();
_editorWindow->updateContent( this );
bool selfDrag = ( event->source() && event->source()->topLevelWidget() == topLevelWidget() );
if ( ! selfDrag )
_editorWindow->clearSelection( true );
else {
// selection should not be cleared here, since we might want to delete it.
}
event->accept();
}
RegExp* DragAccepter::regExp() const
{
return 0;
}
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