forked from amazingfate/loongoffice
348 lines
11 KiB
C++
348 lines
11 KiB
C++
/*************************************************************************
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*
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* $RCSfile: SelectionHelper.cxx,v $
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*
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* $Revision: 1.3 $
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*
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* last change: $Author: iha $ $Date: 2003-10-30 16:06:01 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2003 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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#include "SelectionHelper.hxx"
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#include "chartview/ObjectIdentifier.hxx"
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//for C2U
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#include "macros.hxx"
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// header for class SdrObjList
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#ifndef _SVDPAGE_HXX
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#include <svx/svdpage.hxx>
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#endif
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#ifndef _SVDITER_HXX
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#include <svx/svditer.hxx>
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#endif
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#ifndef _E3D_OBJ3D_HXX
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#include "svx/obj3d.hxx"
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#endif
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// header for class SdrPathObj
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#ifndef _SVDOPATH_HXX
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#include <svx/svdopath.hxx>
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#endif
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#ifndef _COM_SUN_STAR_BEANS_XPROPERTYSET_HPP_
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#include <com/sun/star/beans/XPropertySet.hpp>
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#endif
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//.............................................................................
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namespace chart
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{
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//.............................................................................
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using namespace ::com::sun::star;
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//using namespace ::drafts::com::sun::star::chart2;
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//static
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rtl::OUString SelectionHelper::getObjectName( SdrObject* pObj )
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{
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rtl::OUString aName;
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if(pObj)
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{
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try
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{
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uno::Reference< uno::XInterface > xShape = pObj->getUnoShape();
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uno::Reference< beans::XPropertySet > xShapeProps(
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uno::Reference< beans::XPropertySet >::query( xShape ) );
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uno::Any aAName = xShapeProps->getPropertyValue( C2U( "Name" ) ); //UNO_NAME_MISC_OBJ_NAME
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aAName >>= aName;
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}
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catch( uno::Exception &e)
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{
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e;
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}
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}
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return aName;
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}
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//static
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bool SelectionHelper::findNamedParent( SdrObject*& pInOutObject
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, rtl::OUString& rOutName
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, bool bGivenObjectMayBeResult )
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{
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//find the deepest named group
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SdrObject* pObj = pInOutObject;
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rtl::OUString aName;
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if( bGivenObjectMayBeResult )
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aName = getObjectName( pObj );
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while( pObj && !ObjectIdentifier::isCID( aName ) )
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{
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SdrObjList* pObjList = pObj->GetObjList();
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if( !pObjList )
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return false;;
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SdrObject* pOwner = pObjList->GetOwnerObj();
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if( !pOwner )
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return false;
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pObj = pOwner;
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aName = getObjectName( pObj );
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}
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if(!pObj)
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return false;
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if(!aName.getLength())
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return false;
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pInOutObject = pObj;
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rOutName = aName;
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return true;
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}
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//static
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SdrObject* SelectionHelper::getObjectToSelect( const Point& rMPos
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, rtl::OUString& rNameOfLastSelectedObject
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, const DrawViewWrapper& rDrawViewWrapper
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, bool bAllowMultiClickSelectionChange )
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{
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//bAllowMultiClickSelectionChange==true -> a second click on the same object can lead to a changed selection (e.g. series -> single data point)
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//the search for the object to select starts with the hit object deepest in the grouping hierarchy (a leaf in the tree)
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//further we travel along the grouping hierarchy from child to parent
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SdrObject* pNewObj = rDrawViewWrapper.getHitObject(rMPos);
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rtl::OUString aNewName = getObjectName( pNewObj );//name of pNewObj
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rtl::OUString aTestFirstHit = aNewName;
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//ignore handle only objects for hit test
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while( pNewObj && aNewName.match(C2U("HandlesOnly")) )
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{
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pNewObj->SetMarkProtect(true);
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pNewObj = rDrawViewWrapper.getHitObject(rMPos);
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aNewName = getObjectName( pNewObj );
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}
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//accept only named objects while searching for the object to select
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if( !findNamedParent( pNewObj, aNewName, true ) )
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{
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rNameOfLastSelectedObject = C2U("");
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return NULL;
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}
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//if the so far found object is a multi click object further steps are necessary
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while( ObjectIdentifier::isMultiClickObject( aNewName ) )
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{
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if( rNameOfLastSelectedObject.getLength() && aNewName.match( rNameOfLastSelectedObject )
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&& bAllowMultiClickSelectionChange /*e.g. a right mouse click on a selected object should not lead to a different selection*/ )
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{
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//if the same child is clicked again don't go up further
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break;
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}
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if( ObjectIdentifier::areSiblings(rNameOfLastSelectedObject,aNewName) )
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{
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//if a sibling of the last selected object is clicked don't go up further
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break;
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}
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SdrObject* pLastChild = pNewObj;
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rtl::OUString aLastChildName = aNewName;
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if(!findNamedParent( pNewObj, aNewName, false ))
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{
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//take the one found so far
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break;
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}
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//if the last selected object is found don't go up further
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//but take the last child if selection change is allowed
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if( rNameOfLastSelectedObject.getLength() && aNewName.match( rNameOfLastSelectedObject ) )
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{
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if( bAllowMultiClickSelectionChange )
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{
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pNewObj = pLastChild;
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aNewName = aLastChildName;
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}
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break;
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}
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}
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DBG_ASSERT(pNewObj && aNewName.getLength(),"somehow lost selected object");
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rNameOfLastSelectedObject = aNewName;
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return pNewObj;
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}
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SelectionHelper::SelectionHelper( SdrObject* pSelectedObj
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, const rtl::OUString& rSelectedObjectCID )
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: m_pSelectedObj( pSelectedObj )
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, m_aSelectedObjectCID( rSelectedObjectCID )
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{
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}
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SelectionHelper::~SelectionHelper()
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{
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}
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//virtual
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bool SelectionHelper::getFrameDragSingles()
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{
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bool bFrameDragSingles = true;//true == green == surrounding handles
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if( m_pSelectedObj && m_pSelectedObj->ISA(E3dObject) )
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bFrameDragSingles = false;
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return bFrameDragSingles;
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}
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SdrObject* SelectionHelper::getObjectToMark()
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{
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//return the selected object itself
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//or a sub object if one with name "MarkHandles" exsists
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SdrObject* pObj = m_pSelectedObj;
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m_pMarkObj = pObj;
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if(pObj)
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{
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SdrObjList* pSubList = pObj->GetSubList();
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if(pSubList)
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{
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SdrObjListIter aIterator(*pSubList, IM_DEEPWITHGROUPS);
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while (aIterator.IsMore())
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{
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SdrObject* pSubObj = aIterator.Next();
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rtl::OUString aName = SelectionHelper::getObjectName( pSubObj );
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if( aName.match(C2U("MarkHandles")) )
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{
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m_pMarkObj = pSubObj;
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break;
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}
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}
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}
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}
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return m_pMarkObj;
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}
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//virtual
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bool SelectionHelper::getMarkHandles( SdrHdlList& rHdlList )
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{
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//@todo -> more flexible handle creation
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//2 scenarios possible:
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//1. add an additional invisible shape as a child to the selected object
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//this child needs to be named somehow and handles need to be generated therefrom ...
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//or 2. offer a central service per view where renderer and so can register for handle creation for a special shape
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//.. or 3. feature from drawinglayer to create handles for each shape ... (bad performance ... ?) ?
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//scenario 1 is now used:
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//if a child with name MarkHandles exsists
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//this child is marked instead of the logical selected object
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/*
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//if a special mark object was found
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//that object should be used for marking only
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if( m_pMarkObj != m_pSelectedObj)
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return false;
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*/
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//if a special mark object was found
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//that object should be used to create handles from
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if( m_pMarkObj && m_pMarkObj != m_pSelectedObj)
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{
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rHdlList.Clear();
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if( m_pMarkObj->ISA(SdrPathObj) )
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{
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//if th object is a polygon
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//from each point a handle is generated
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const XPolyPolygon& rPolyPolygon = ((SdrPathObj*)m_pMarkObj)->GetPathPoly();
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for( sal_Int32 nN = 0; nN < rPolyPolygon.Count(); nN++)
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{
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const XPolygon& rPolygon = rPolyPolygon[nN];
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for( sal_Int32 nM = 0; nM < rPolygon.GetPointCount(); nM++)
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{
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SdrHdl* pHdl = new SdrHdl(rPolygon[nM],HDL_POLY);
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rHdlList.AddHdl(pHdl);
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}
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}
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return true;
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}
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else
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return false; //use the special MarkObject for marking
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}
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//@todo:
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//add and document good marking defaults ...
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rHdlList.Clear();
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SdrObject* pObj = m_pSelectedObj;
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if(!pObj)
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return false;
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SdrObjList* pSubList = pObj->GetSubList();
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if( !pSubList )//no group object !pObj->IsGroupObject()
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return false;
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SdrObjListIter aIterator(*pSubList, IM_DEEPWITHGROUPS);
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if( pObj->ISA(E3dObject) )
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{
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/*
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E3dObject* p3DObj = (E3dObject*) pObj;
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USHORT nGroup = p3DObj->GetLogicalGroup();
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if(nGroup>0)
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aIterator = SdrObjListIter(*((SdrObject*)p3DObj->GetScene()), IM_DEEPWITHGROUPS);
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else
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*/
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return false;
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}
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while (aIterator.IsMore())
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{
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SdrObject* pSubObj = aIterator.Next();
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Point aPos = pSubObj->GetBoundRect().Center();
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SdrHdl* pHdl = new SdrHdl(aPos,HDL_POLY);
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rHdlList.AddHdl(pHdl);
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}
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return true;
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}
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//.............................................................................
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} //namespace chart
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//.............................................................................
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