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+ /**********************************************************************
+** Copyright (C) 2005-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of TQt Designer.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free TQt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing retquirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at [email protected].
+**
+** Licensees holding valid TQt Commercial licenses may use this file in
+** accordance with the TQt Commercial License Agreement provided with
+** the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#include "editor.h"
+#include "parenmatcher.h"
+#include <qfile.h>
+#include <private/qrichtext_p.h>
+#include "conf.h"
+#include <qapplication.h>
+#include <qpopupmenu.h>
+#include <qaccel.h>
+
+Editor::Editor( const TQString &fn, TQWidget *parent, const char *name )
+ : TQTextEdit( parent, name ), hasError( FALSE )
+{
+ document()->setFormatter( new TQTextFormatterBreakInWords );
+ if ( !fn.isEmpty() )
+ load( fn );
+ setHScrollBarMode( TQScrollView::AlwaysOff );
+ setVScrollBarMode( TQScrollView::AlwaysOn );
+ document()->setUseFormatCollection( FALSE );
+ parenMatcher = new ParenMatcher;
+ connect( this, SIGNAL( cursorPositionChanged( TQTextCursor * ) ),
+ this, SLOT( cursorPosChanged( TQTextCursor * ) ) );
+ cfg = new Config;
+ document()->addSelection( Error );
+ document()->addSelection( Step );
+ document()->setSelectionColor( Error, red );
+ document()->setSelectionColor( Step, yellow );
+ document()->setInvertSelectionText( Error, FALSE );
+ document()->setInvertSelectionText( Step, FALSE );
+ document()->addSelection( ParenMatcher::Match );
+ document()->addSelection( ParenMatcher::Mismatch );
+ document()->setSelectionColor( ParenMatcher::Match, TQColor( 204, 232, 195 ) );
+ document()->setSelectionColor( ParenMatcher::Mismatch, TQt::magenta );
+ document()->setInvertSelectionText( ParenMatcher::Match, FALSE );
+ document()->setInvertSelectionText( ParenMatcher::Mismatch, FALSE );
+
+ accelComment = new TQAccel( this );
+ accelComment->connectItem( accelComment->insertItem( ALT + Key_C ),
+ this, SLOT( commentSelection() ) );
+ accelUncomment = new TQAccel( this );
+ accelUncomment->connectItem( accelUncomment->insertItem( ALT + Key_U ),
+ this, SLOT( uncommentSelection() ) );
+ editable = TRUE;
+}
+
+Editor::~Editor()
+{
+ delete cfg;
+ delete parenMatcher;
+}
+
+void Editor::cursorPosChanged( TQTextCursor *c )
+{
+ if ( parenMatcher->match( c ) )
+ repaintChanged();
+ if ( hasError ) {
+ emit clearErrorMarker();
+ hasError = FALSE;
+ }
+}
+
+void Editor::load( const TQString &fn )
+{
+ filename = fn;
+ TQFile f( filename );
+ if ( !f.open( IO_ReadOnly ) )
+ return;
+ TQCString txt;
+ txt.resize( f.size() );
+ f.readBlock( txt.data(), f.size() );
+ TQString s( TQString::fromLatin1( txt ) );
+ setText( s );
+}
+
+void Editor::save( const TQString &fn )
+{
+ if ( !filename.isEmpty() )
+ filename = fn;
+}
+
+void Editor::configChanged()
+{
+ document()->invalidate();
+ viewport()->repaint( FALSE );
+}
+
+void Editor::setErrorSelection( int line )
+{
+ TQTextParagraph *p = document()->paragAt( line );
+ if ( !p )
+ return;
+ TQTextCursor c( document() );
+ c.setParagraph( p );
+ c.setIndex( 0 );
+ document()->removeSelection( Error );
+ document()->setSelectionStart( Error, c );
+ c.gotoLineEnd();
+ document()->setSelectionEnd( Error, c );
+ hasError = TRUE;
+ viewport()->repaint( FALSE );
+}
+
+void Editor::setStepSelection( int line )
+{
+ TQTextParagraph *p = document()->paragAt( line );
+ if ( !p )
+ return;
+ TQTextCursor c( document() );
+ c.setParagraph( p );
+ c.setIndex( 0 );
+ document()->removeSelection( Step );
+ document()->setSelectionStart( Step, c );
+ c.gotoLineEnd();
+ document()->setSelectionEnd( Step, c );
+ viewport()->repaint( FALSE );
+}
+
+void Editor::clearStepSelection()
+{
+ document()->removeSelection( Step );
+ viewport()->repaint( FALSE );
+}
+
+void Editor::doChangeInterval()
+{
+ emit intervalChanged();
+ TQTextEdit::doChangeInterval();
+}
+
+void Editor::commentSelection()
+{
+ TQTextParagraph *start = document()->selectionStartCursor( TQTextDocument::Standard ).paragraph();
+ TQTextParagraph *end = document()->selectionEndCursor( TQTextDocument::Standard ).paragraph();
+ if ( !start || !end )
+ start = end = textCursor()->paragraph();
+ while ( start ) {
+ if ( start == end && textCursor()->index() == 0 )
+ break;
+ start->insert( 0, "//" );
+ if ( start == end )
+ break;
+ start = start->next();
+ }
+ document()->removeSelection( TQTextDocument::Standard );
+ repaintChanged();
+ setModified( TRUE );
+}
+
+void Editor::uncommentSelection()
+{
+ TQTextParagraph *start = document()->selectionStartCursor( TQTextDocument::Standard ).paragraph();
+ TQTextParagraph *end = document()->selectionEndCursor( TQTextDocument::Standard ).paragraph();
+ if ( !start || !end )
+ start = end = textCursor()->paragraph();
+ while ( start ) {
+ if ( start == end && textCursor()->index() == 0 )
+ break;
+ while ( start->at( 0 )->c == '/' )
+ start->remove( 0, 1 );
+ if ( start == end )
+ break;
+ start = start->next();
+ }
+ document()->removeSelection( TQTextDocument::Standard );
+ repaintChanged();
+ setModified( TRUE );
+}
+
+TQPopupMenu *Editor::createPopupMenu( const TQPoint &p )
+{
+ TQPopupMenu *menu = TQTextEdit::createPopupMenu( p );
+ menu->insertSeparator();
+ menu->insertItem( tr( "C&omment Code\tAlt+C" ), this, SLOT( commentSelection() ) );
+ menu->insertItem( tr( "Unco&mment Code\tAlt+U" ), this, SLOT( uncommentSelection() ) );
+ return menu;
+}
+
+bool Editor::eventFilter( TQObject *o, TQEvent *e )
+{
+ if ( ( e->type() == TQEvent::FocusIn || e->type() == TQEvent::FocusOut ) &&
+ ( o == this || o == viewport() ) ) {
+ accelUncomment->setEnabled( e->type() == TQEvent::FocusIn );
+ accelComment->setEnabled( e->type() == TQEvent::FocusIn );
+ }
+ return TQTextEdit::eventFilter( o, e );
+}
+
+void Editor::doKeyboardAction( KeyboardAction action )
+{
+ if ( !editable )
+ return;
+ TQTextEdit::doKeyboardAction( action );
+}
+
+void Editor::keyPressEvent( TQKeyEvent *e )
+{
+ if ( editable ) {
+ TQTextEdit::keyPressEvent( e );
+ return;
+ }
+
+ switch ( e->key() ) {
+ case Key_Left:
+ case Key_Right:
+ case Key_Up:
+ case Key_Down:
+ case Key_Home:
+ case Key_End:
+ case Key_Prior:
+ case Key_Next:
+ case Key_Direction_L:
+ case Key_Direction_R:
+ TQTextEdit::keyPressEvent( e );
+ break;
+ default:
+ e->accept();
+ break;
+ }
+}
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