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150 lines
4.9 KiB
150 lines
4.9 KiB
/**********************************************************************
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** Copyright (C) 2005-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of TQt Designer.
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**
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** This file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free
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** Software Foundation and appearing in the files LICENSE.GPL2
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** and LICENSE.GPL3 included in the packaging of this file.
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** Alternatively you may (at your option) use any later version
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** of the GNU General Public License if such license has been
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** publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free TQt Foundation.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** Licensees holding valid TQt Commercial licenses may use this file in
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** accordance with the TQt Commercial License Agreement provided with
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** the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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**
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**********************************************************************/
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#include "browser.h"
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#include "editor.h"
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#include <private/qrichtext_p.h>
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EditorBrowser::EditorBrowser( Editor *e )
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: curEditor( e ), oldHighlightedParag( 0 )
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{
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curEditor = e;
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// ### disabled for now
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// curEditor->viewport()->installEventFilter( this );
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// curEditor->installEventFilter( this );
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TQFont fn( curEditor->font() );
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fn.setUnderline( TRUE );
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highlightedFormat = new TQTextFormat( fn, blue );
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}
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EditorBrowser::~EditorBrowser()
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{
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delete highlightedFormat;
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}
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bool EditorBrowser::eventFilter( TQObject *o, TQEvent *e )
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{
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if ( ::tqt_cast<Editor*>(o->parent()) || ::tqt_cast<Editor*>(o) ) {
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TQMouseEvent *me;
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TQKeyEvent *ke;
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switch ( e->type() ) {
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case TQEvent::MouseMove:
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me = (TQMouseEvent*)e;
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if ( ( me->state() & ControlButton ) == ControlButton ) {
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curEditor->viewport()->setCursor( pointingHandCursor );
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TQTextCursor c( curEditor->document() );
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curEditor->placeCursor( curEditor->viewportToContents( me->pos() ), &c );
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TQTextCursor from, to;
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if ( oldHighlightedParag ) {
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oldHighlightedParag->setEndState( -1 );
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oldHighlightedParag->format();
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oldHighlightedParag = 0;
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}
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if ( findCursor( c, from, to ) && from.paragraph() == to.paragraph() ) {
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// avoid collision with other selections
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for ( int i = 0; i < curEditor->document()->numSelections(); ++i )
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curEditor->document()->removeSelection( i );
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from.paragraph()->setFormat( from.index(), to.index() - from.index() + 1, highlightedFormat, FALSE );
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lastWord = from.paragraph()->string()->toString().mid( from.index(), to.index() - from.index() + 1 );
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oldHighlightedParag = from.paragraph();
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} else {
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lastWord = "";
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}
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curEditor->repaintChanged();
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return TRUE;
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}
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break;
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case TQEvent::MouseButtonPress: {
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bool killEvent = !lastWord.isEmpty();
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if ( !lastWord.isEmpty() )
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showHelp( lastWord );
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lastWord = "";
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curEditor->viewport()->setCursor( ibeamCursor );
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if ( oldHighlightedParag ) {
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oldHighlightedParag->setEndState( -1 );
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oldHighlightedParag->format();
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curEditor->repaintChanged();
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oldHighlightedParag = 0;
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}
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if ( killEvent )
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return TRUE;
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} break;
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case TQEvent::KeyRelease:
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lastWord = "";
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ke = (TQKeyEvent*)e;
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if ( ke->key() == Key_Control ) {
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curEditor->viewport()->setCursor( ibeamCursor );
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if ( oldHighlightedParag ) {
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oldHighlightedParag->setEndState( -1 );
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oldHighlightedParag->format();
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curEditor->repaintChanged();
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oldHighlightedParag = 0;
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}
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}
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default:
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break;
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}
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}
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return FALSE;
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}
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void EditorBrowser::setCurrentEdior( Editor *e )
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{
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curEditor = e;
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curEditor->installEventFilter( this );
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}
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void EditorBrowser::addEditor( Editor *e )
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{
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e->installEventFilter( this );
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}
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bool EditorBrowser::findCursor( const TQTextCursor &c, TQTextCursor &from, TQTextCursor &to )
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{
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from = c;
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while ( from.paragraph()->at( from.index() )->c != ' ' && from.paragraph()->at( from.index() )->c != '\t' && from.index() > 0 )
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from.gotoLeft();
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if ( from.paragraph()->at( from.index() )->c == ' ' || from.paragraph()->at( from.index() )->c == '\t' )
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from.gotoRight();
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to = c;
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while ( to.paragraph()->at( to.index() )->c != ' ' && to.paragraph()->at( to.index() )->c != '\t' &&
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to.index() < to.paragraph()->length() - 1 )
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to.gotoRight();
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if ( to.paragraph()->at( to.index() )->c == ' ' || to.paragraph()->at( to.index() )->c == '\t' )
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to.gotoLeft();
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return TRUE;
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}
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