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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.
**/
#ifdef QT_ONLY
#include "compat.h"
#else
#include "regexpwidget.moc"
#endif
#include "regexpwidget.h"
#include <iostream>
#include <qpainter.h>
#include <qcursor.h>
#include "concwidget.h"
#include "dragaccepter.h"
const int RegExpWidget::pw = 1;
const int RegExpWidget::bdSize = 5;
const int RegExpWidget::space = 5;
RegExpWidget::RegExpWidget(RegExpEditorWindow* editorWindow, QWidget *parent,
const char *name)
: QWidget(parent, name ? name : "RegExpWidget", WNoMousePropagation ),
_editorWindow( editorWindow ), _isSelected( false ), _isToplevel( false )
{
}
void RegExpWidget::addNewChild(DragAccepter *, RegExpWidget *)
{
qFatal("This widget should not expect any children");
}
void RegExpWidget::addNewConcChild(DragAccepter *, ConcWidget *)
{
qFatal("This widget should not expect any children");
}
void RegExpWidget::setConcChild(ConcWidget *)
{
qFatal("This widget should not expect any children");
}
bool RegExpWidget::updateSelection(bool parentSelected)
{
bool selected = ( parentSelected ||
_editorWindow->selectionOverlap( mapToGlobal( QPoint(0,0) ), size() ) )
&& !_isToplevel;
if ( _isSelected != selected ) {
// Selection state changed
_isSelected = selected;
repaint();
return true;
}
return false;
}
void RegExpWidget::drawPossibleSelection( QPainter& painter, QSize mySize )
{
if ( _isSelected ) {
painter.fillRect( 0, 0, mySize.width(), mySize.height(), QBrush( gray ) );
}
}
bool RegExpWidget::isSelected() const
{
return _isSelected;
}
bool RegExpWidget::hasSelection() const
{
return _isSelected;
}
void RegExpWidget::clearSelection()
{
_isSelected = false;
}
void RegExpWidget::applyRegExpToSelection( RegExpType )
{
qFatal("This method should not be called for this widget");
}
void RegExpWidget::deleteSelection()
{
qFatal("This method should be overridden if needed!");
}
RegExp* RegExpWidget::selection() const
{
return regExp();
}
int RegExpWidget::edit()
{
qFatal("This method should be overridden if needed!");
return 0; // Compiler shut up
}
void RegExpWidget::mousePressEvent ( QMouseEvent* event )
{
if ( _editorWindow->isPasteing() || _editorWindow->isInserting() )
return;
if ( event->button() == LeftButton ) {
if ( ! _editorWindow->pointSelected( QCursor::pos() ) ) {
_editorWindow->clearSelection( true );
if ( dynamic_cast<DragAccepter*>(this) == 0 && dynamic_cast<ConcWidget*>(this) == 0 ) {
selectWidget( true );
}
}
QMouseEvent ev( event->type(), mapTo(_editorWindow, event->pos()),
event->button(), event->state());
QApplication::sendEvent( _editorWindow, &ev );
}
else if ( event->button() == RightButton ) {
_editorWindow->showRMBMenu( true );
}
// currently (Qt3.0) it seems like qt do not accept that the accept flag is set,
// and thus sends the event to the parent - given that the following line is in.
// It doesn't make any change to leave it out.
// 25 Oct. 2001 19:03 -- Jesper K. Pedersen
// QWidget::mousePressEvent( event );
}
void RegExpWidget::mouseReleaseEvent( QMouseEvent* )
{
if ( _editorWindow->isInserting() && acceptWidgetInsert( _editorWindow->insertType() ) ) {
if ( !_editorWindow->hasSelection() )
_isSelected = true;
_editorWindow->applyRegExpToSelection( _editorWindow->insertType() );
_editorWindow->clearSelection( true );
_editorWindow->updateContent( this );
_editorWindow->slotEndActions();
_editorWindow->updateCursorUnderPoint();
}
}
QRect RegExpWidget::selectionRect() const
{
return QRect( mapToGlobal( QPoint(0,0) ), size() );
}
void RegExpWidget::enterEvent( QEvent * )
{
updateCursorShape();
}
void RegExpWidget::updateCursorShape()
{
QCursor cursor;
if ( _editorWindow->isPasteing() ) {
if ( acceptWidgetPaste() )
cursor = CrossCursor;
else
cursor = ForbiddenCursor;
}
else if ( _editorWindow->isInserting() ) {
if ( acceptWidgetInsert( _editorWindow->insertType() ) )
cursor = CrossCursor;
else
cursor = ForbiddenCursor;
}
else
cursor = arrowCursor;
setCursor( cursor );
}
void RegExpWidget::updateCursorRecursively()
{
updateCursorShape();
}
bool RegExpWidget::acceptWidgetPaste() const
{
return false;
}
bool RegExpWidget::acceptWidgetInsert( RegExpType tp ) const
{
return WidgetFactory::isContainer( tp );
}
RegExpWidget* RegExpWidget::widgetUnderPoint( QPoint globalPos, bool )
{
if ( QRect(mapToGlobal( QPoint(0,0) ), size() ).contains( globalPos ) )
return this;
else
return 0;
}
void RegExpWidget::selectWidget( bool sel)
{
_isSelected = sel;
update();
}
void RegExpWidget::updateAll()
{
update();
}
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