1 files changed, 149 insertions, 0 deletions
diff --git a/tools/designer/editor/browser.cpp b/tools/designer/editor/browser.cpp
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+++ b/tools/designer/editor/browser.cpp
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+/**********************************************************************
+** Copyright (C) 2005-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of Qt 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 Qt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing requirements 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 Qt Commercial licenses may use this file in
+** accordance with the Qt 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 "browser.h"
+#include "editor.h"
+#include <private/qrichtext_p.h>
+
+
+EditorBrowser::EditorBrowser( Editor *e )
+    : curEditor( e ), oldHighlightedParag( 0 )
+{
+    curEditor = e;
+
+    // ### disabled for now
+//     curEditor->viewport()->installEventFilter( this );
+//     curEditor->installEventFilter( this );
+
+    QFont fn( curEditor->font() );
+    fn.setUnderline( TRUE );
+    highlightedFormat = new QTextFormat( fn, blue );
+}
+
+EditorBrowser::~EditorBrowser()
+{
+    delete highlightedFormat;
+}
+
+bool EditorBrowser::eventFilter( QObject *o, QEvent *e )
+{
+    if ( ::qt_cast<Editor*>(o->parent()) || ::qt_cast<Editor*>(o) ) {
+	QMouseEvent *me;
+	QKeyEvent *ke;
+	switch ( e->type() ) {
+	case QEvent::MouseMove:
+	    me = (QMouseEvent*)e;
+	    if ( ( me->state() & ControlButton ) == ControlButton ) {
+		curEditor->viewport()->setCursor( pointingHandCursor );
+		QTextCursor c( curEditor->document() );
+		curEditor->placeCursor( curEditor->viewportToContents( me->pos() ), &c );
+		QTextCursor from, to;
+		if ( oldHighlightedParag ) {
+		    oldHighlightedParag->setEndState( -1 );
+		    oldHighlightedParag->format();
+		    oldHighlightedParag = 0;
+		}
+		if ( findCursor( c, from, to ) && from.paragraph() == to.paragraph() ) {
+		    // avoid collision with other selections
+		    for ( int i = 0; i < curEditor->document()->numSelections(); ++i )
+			curEditor->document()->removeSelection( i );
+		    from.paragraph()->setFormat( from.index(), to.index() - from.index() + 1, highlightedFormat, FALSE );
+		    lastWord = from.paragraph()->string()->toString().mid( from.index(), to.index() - from.index() + 1 );
+		    oldHighlightedParag = from.paragraph();
+		} else {
+		    lastWord = "";
+		}
+		curEditor->repaintChanged();
+		return TRUE;
+	    }
+	    break;
+	case QEvent::MouseButtonPress: {
+	    bool killEvent = !lastWord.isEmpty();
+	    if ( !lastWord.isEmpty() )
+		showHelp( lastWord );
+	    lastWord = "";
+	    curEditor->viewport()->setCursor( ibeamCursor );
+	    if ( oldHighlightedParag ) {
+		oldHighlightedParag->setEndState( -1 );
+		oldHighlightedParag->format();
+		curEditor->repaintChanged();
+		oldHighlightedParag = 0;
+	    }
+	    if ( killEvent )
+		return TRUE;
+	} break;
+	case QEvent::KeyRelease:
+	    lastWord = "";
+	    ke = (QKeyEvent*)e;
+	    if ( ke->key() == Key_Control ) {
+		curEditor->viewport()->setCursor( ibeamCursor );
+		if ( oldHighlightedParag ) {
+		    oldHighlightedParag->setEndState( -1 );
+		    oldHighlightedParag->format();
+		    curEditor->repaintChanged();
+		    oldHighlightedParag = 0;
+		}
+	    }
+	default:
+	    break;
+	}
+    }
+    return FALSE;
+}
+
+void EditorBrowser::setCurrentEdior( Editor *e )
+{
+    curEditor = e;
+    curEditor->installEventFilter( this );
+}
+
+void EditorBrowser::addEditor( Editor *e )
+{
+    e->installEventFilter( this );
+}
+
+bool EditorBrowser::findCursor( const QTextCursor &c, QTextCursor &from, QTextCursor &to )
+{
+    from = c;
+    while ( from.paragraph()->at( from.index() )->c != ' ' && from.paragraph()->at( from.index() )->c != '\t'  && from.index() > 0 )
+	from.gotoLeft();
+    if ( from.paragraph()->at( from.index() )->c == ' ' || from.paragraph()->at( from.index() )->c == '\t' )
+	from.gotoRight();
+    to = c;
+    while ( to.paragraph()->at( to.index() )->c != ' ' && to.paragraph()->at( to.index() )->c != '\t' &&
+	    to.index() < to.paragraph()->length() - 1 )
+	to.gotoRight();
+    if ( to.paragraph()->at( to.index() )->c == ' ' || to.paragraph()->at( to.index() )->c == '\t' )
+	to.gotoLeft();
+    return TRUE;
+}