diff options
Diffstat (limited to 'kregexpeditor/regexpwidget.cpp')
| -rw-r--r-- | kregexpeditor/regexpwidget.cpp | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/kregexpeditor/regexpwidget.cpp b/kregexpeditor/regexpwidget.cpp new file mode 100644 index 0000000..2ee2aa7 --- /dev/null +++ b/kregexpeditor/regexpwidget.cpp @@ -0,0 +1,227 @@ +/* + * 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(); +} + + |