1 files changed, 254 insertions, 0 deletions
diff --git a/kregexpeditor/altnwidget.cpp b/kregexpeditor/altnwidget.cpp
new file mode 100644
index 0000000..22937ac
--- /dev/null
+++ b/kregexpeditor/altnwidget.cpp
@@ -0,0 +1,254 @@
+/*
+ *  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 <kmessagebox.h>
+#endif
+
+#include "altnwidget.h"
+#include "dragaccepter.h"
+#include "concwidget.h"
+#include "altnregexp.h"
+#include <qpainter.h>
+
+AltnWidget::AltnWidget(RegExpEditorWindow* editorWindow, QWidget *parent,
+                       const char *name)
+  :MultiContainerWidget(editorWindow, parent, name == 0 ? "AltnWidget" : name)
+{
+  DragAccepter *accepter = new DragAccepter(editorWindow, this);
+  accepter->resize(0,0); // See note (1) in Comments
+  _children.append(accepter);
+  _text = i18n("Alternatives");
+}
+
+AltnWidget::AltnWidget( AltnRegExp* regexp, RegExpEditorWindow* editorWindow,
+            QWidget* parent, const char* name)
+  :MultiContainerWidget( editorWindow, parent, name )
+{
+  DragAccepter *accepter = new DragAccepter(editorWindow, this);
+  accepter->resize(0,0); // See note (1) in Comments
+  _children.append(accepter);
+  _text = i18n("Alternatives");
+
+  RegExpList list = regexp->children();
+  for ( RegExpListIt it(list); *it; ++it ) {
+    RegExpWidget* child = WidgetFactory::createWidget( *it, editorWindow, this );
+    ConcWidget* conc;
+    if (  ! (conc = dynamic_cast<ConcWidget*>( child ) ) ) {
+      conc = new ConcWidget( editorWindow, child, parent );
+    }
+    append( conc );
+  }
+  updateDrawLineInfo();
+}
+
+
+void AltnWidget::addNewChild(DragAccepter *accepter, RegExpWidget *child)
+{
+  ConcWidget *conc = new ConcWidget(_editorWindow, child,this);
+  MultiContainerWidget::addNewChild( accepter, conc );
+  updateDrawLineInfo();
+  repaint();
+}
+
+void AltnWidget::setConcChild(ConcWidget *child)
+{
+  addNewConcChild( dynamic_cast<DragAccepter*>(_children.at(0)), child );
+}
+
+void AltnWidget::addNewConcChild(DragAccepter *accepter, ConcWidget *child)
+{
+  child->reparent(this, QPoint(0,0), false);
+  MultiContainerWidget::addNewChild( accepter, child );
+  updateDrawLineInfo();
+}
+
+
+QSize AltnWidget::sizeHint() const
+{
+  QPtrListIterator<RegExpWidget> it(_children);
+  // Skip the first child, as we only need half of the size of the first and the
+  // last drag accepter. Does, however, not apply when there only is onw child.
+  if ( _children.count() != 1 )
+    ++it;
+
+  _childrenWidth = 0;
+  _childrenHeight = 0;
+
+  for ( ; *it ; ++it) {
+    QSize thisChildSize = (*it)->sizeHint();
+    _childrenWidth = QMAX(_childrenWidth, thisChildSize.width());
+    _childrenHeight += thisChildSize.height();
+  }
+
+  // Now add the size of the header
+  QFontMetrics metrics = fontMetrics();
+  _textSize = metrics.size(0,_text);
+
+  int headerWidth = _textSize.width() + 2 * bdSize + 2;
+
+  _childrenWidth = QMAX(_childrenWidth, headerWidth);
+
+  return QSize(_childrenWidth + 2*pw, _childrenHeight + _textSize.height() + 1*pw );
+}
+
+void AltnWidget::paintEvent( QPaintEvent *e)
+{
+  Q_ASSERT( dynamic_cast<DragAccepter*>(_children.at(0)) );
+  // if this fails, then I should check the location of the show()
+  Q_ASSERT( _children.count() == 1 ||
+          ( _children.count() >=3 &&
+            dynamic_cast<DragAccepter*>(_children.at(_children.count()-1)) ) );
+
+  int offset = 0;
+  QSize mySize = sizeHint();
+
+  QPainter painter(this);
+  drawPossibleSelection( painter, mySize );
+
+  //-------------------------------------- First draw the border and text
+  int startY = _textSize.height()/2;
+
+  painter.drawLine(0, startY, bdSize, startY);
+  int xOffset = bdSize +1;
+
+  painter.drawText(xOffset,0,_textSize.width(), _textSize.height(),0,_text);
+  xOffset += _textSize.width() +1;
+  painter.drawLine(xOffset,startY,mySize.width(), startY);
+  painter.drawLine(0,startY,0,mySize.height());
+  painter.drawLine(mySize.width()-pw, startY, mySize.width()-pw, mySize.height());
+  painter.drawLine(0,mySize.height()-pw, mySize.width()-pw, mySize.height()-pw);
+
+  //---- Run through all the children and place them at the correct location.
+  offset = _textSize.height();
+  xOffset = pw;
+
+  for (unsigned int i = 0; i < _children.count(); i++ ) {
+
+    RegExpWidget* child = _children.at(i);
+
+    QSize childSize = child->sizeHint();
+    QSize curChildSize = child->size();
+
+    //-------------------------------------- place the child
+    int x = xOffset;
+    int y = offset;
+    int h = childSize.height();
+    if (  ( _children.count() != 1 ) && ( i == 0 || i == _children.count() -1 ) ) {
+      // first and last DragAccepter should only be half size.
+      h /= 2;
+    }
+
+    int w = _childrenWidth;
+    child->setGeometry( x, y, w, h );
+    if ( w != curChildSize.width() || h != curChildSize.height()  ) {
+      // I resized the child, so give it a chance to relect thus.
+      child->update();
+    }
+
+    offset += h;
+  }
+  MultiContainerWidget::paintEvent( e );
+}
+
+RegExp* AltnWidget::regExp() const
+{
+	AltnRegExp *regexp = new AltnRegExp( isSelected() );
+
+  QPtrListIterator<RegExpWidget> it(_children);
+  ++it; // start with the second element
+	for ( ; *it; it+=2 ) {
+    regexp->addRegExp( (*it)->regExp() );
+	}
+
+	return regexp;
+}
+
+void AltnWidget::applyRegExpToSelection( RegExpType type )
+{
+  for ( unsigned int i=1; i < _children.count(); i += 2 ) {
+    RegExpWidget* child = _children.at( i );
+    if ( child->hasSelection() ) {
+      child->applyRegExpToSelection( type );
+    }
+  }
+}
+
+
+RegExp* AltnWidget::selection() const
+{
+  if ( isSelected() )
+    return regExp();
+  else {
+    QPtrListIterator<RegExpWidget> it(_children);
+    ++it; // Skip past DragAccepter
+    for ( ; *it; it+=2 ) {
+      if ( (*it)->hasSelection() ) {
+        return (*it)->selection();
+      }
+    }
+  }
+  qFatal("Selection not found");
+  return 0; // compiler shut up.
+}
+
+bool AltnWidget::validateSelection() const
+{
+  if ( _isSelected ) {
+    return true;
+  }
+
+  bool foundASelection = false;
+  QPtrListIterator<RegExpWidget> it(_children);
+  ++it; // Skip past DragAccepter
+  for ( ; *it; it+=2 ) {
+    if ( (*it)->hasSelection() ) {
+      if ( foundASelection ) {
+          KMessageBox::information( const_cast<AltnWidget*>(this),
+                                    i18n( "Selecting several alternatives is "
+                                          "currently not supported." ),
+                                    i18n( "Selection Invalid" ) );
+        _editorWindow->clearSelection( true );
+        return false;
+      }
+      else {
+        foundASelection = true;
+      }
+    }
+  }
+  return true;
+}
+
+void AltnWidget::updateDrawLineInfo()
+{
+  for ( unsigned int i=0; i < _children.count(); i+=2 ) {
+    bool line = ( i != 0 && i!= _children.count()-1 );
+    DragAccepter *accepter = dynamic_cast<DragAccepter*>(_children.at(i));
+    if (accepter)
+      accepter->setDrawLine( line );
+  }
+}
+
+void AltnWidget::deleteSelection()
+{
+  MultiContainerWidget::deleteSelection();
+  updateDrawLineInfo();
+}
+