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tqt3/tools/designer/editor/editor.cpp

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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 sales@trolltech.com.
**
** 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;
}
}