1 files changed, 110 insertions, 0 deletions
diff --git a/kregexpeditor/lookaheadwidget.cpp b/kregexpeditor/lookaheadwidget.cpp
new file mode 100644
index 0000000..b724a3c
--- /dev/null
+++ b/kregexpeditor/lookaheadwidget.cpp
@@ -0,0 +1,110 @@
+/*
+ *  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 <klocale.h>
+  #include "lookaheadwidget.moc"
+#endif
+
+#include "lookaheadwidget.h"
+#include "lookaheadregexp.h"
+#include "concwidget.h"
+#include <qpainter.h>
+
+LookAheadWidget::LookAheadWidget( RegExpEditorWindow* editorWindow, RegExpType tp, QWidget* parent, const char* name )
+  :SingleContainerWidget(editorWindow, parent, name ? name : "LookAheadWidget" ), _tp(tp)
+{
+  _child = new ConcWidget( editorWindow, this );
+  init();
+}
+
+LookAheadWidget::LookAheadWidget( LookAheadRegExp* regexp, RegExpEditorWindow* editorWindow, RegExpType tp,
+                                  QWidget* parent, const char* name )
+  :SingleContainerWidget( editorWindow, parent, name ? name : "LookAheadWidget" ), _tp(tp)
+{
+  RegExpWidget* child = WidgetFactory::createWidget( regexp->child(), editorWindow, this );
+  if ( ! (_child = dynamic_cast<ConcWidget*>( child ) ) )
+    _child = new ConcWidget( editorWindow, child, this );
+
+  init();
+}
+
+void LookAheadWidget::init()
+{
+  if ( _tp == POSLOOKAHEAD )
+    _text = i18n("Pos. Look Ahead");
+  else
+    _text = i18n("Neg. Look Ahead");
+}
+
+RegExp* LookAheadWidget::regExp() const
+{
+  return new LookAheadRegExp( isSelected(), ( (_tp == POSLOOKAHEAD) ? LookAheadRegExp::POSITIVE : LookAheadRegExp::NEGATIVE),
+                              _child->regExp() );
+}
+
+QSize LookAheadWidget::sizeHint() const
+{
+  // TODO: Merge with RepeatWidget::sizeHint
+  QFontMetrics metrics = fontMetrics();
+  _textSize = metrics.size( 0, _text );
+
+  _childSize = _child->sizeHint();
+
+  int height = _textSize.height() + bdSize + _childSize.height() + bdSize + 2*pw;
+  int width  = 2 * pw + QMAX(_childSize.width(), 4*bdSize + _textSize.width());
+  return QSize(width,height);
+}
+
+void LookAheadWidget::paintEvent( QPaintEvent *e )
+{
+  // TODO: Merge with RepeatWidget::paintEvent
+  QSize mySize = sizeHint();
+  QPainter painter(this);
+
+  drawPossibleSelection( painter, mySize );
+
+  // move the child to its position and resize it.
+  _child->move(pw,_textSize.height()+bdSize);
+  _child->resize(mySize.width() - 2*pw, _childSize.height());
+
+  // Draw the border and the text.
+  int startY = _textSize.height()/2;
+
+  // Top lines and text
+  painter.drawLine(pw,startY,bdSize,startY);
+  painter.drawText(pw+2*bdSize,0,_textSize.width(), _textSize.height(),0, _text);
+  int offset = pw + 3*bdSize + _textSize.width();
+  painter.drawLine(offset,startY,mySize.width()-pw,startY);
+
+  // horizontal lines
+  painter.drawLine(0,startY,0,mySize.height()-pw);
+  painter.drawLine(mySize.width()-pw,startY,mySize.width()-pw, mySize.height()-pw);
+
+  // buttom line
+  painter.drawLine(0, mySize.height()-pw, mySize.width()-pw, mySize.height()-pw);
+
+  SingleContainerWidget::paintEvent(e);
+}
+
+RegExpWidget* LookAheadWidget::findWidgetToEdit( QPoint globalPos )
+{
+    return _child->findWidgetToEdit( globalPos );
+}