Files
newspark110/lib/actions/rs_previewactioninterface.cpp
Chenwenxuan edac2715f0 init
2024-03-06 14:54:30 +08:00

131 lines
3.5 KiB
C++

/****************************************************************************
**
** This file is part of the LibreCAD project, a 2D CAD program
**
** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file gpl-2.0.txt included in the
** packaging of this file.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
**
** This copyright notice MUST APPEAR in all copies of the script!
**
**********************************************************************/
#include "rs_previewactioninterface.h"
#include "rs_graphicview.h"
#include "rs_preview.h"
#include "rs_debug.h"
/**
* Constructor.
*
* Sets the entity container on which the action class inherited
* from this interface operates.
*/
RS_PreviewActionInterface::RS_PreviewActionInterface(const char* name,
RS_EntityContainer& container,
RS_GraphicView& graphicView) :
RS_ActionInterface(name, container, graphicView)
,preview(new RS_Preview(&container))
// ,offset(new RS_Vector{})
{
RS_DEBUG->print("RS_PreviewActionInterface::RS_PreviewActionInterface: Setting up action with preview: \"%s\"", name);
// preview is linked to the container for getting access to
// document settings / dictionary variables
preview->setLayer(NULL);
hasPreview = true;
RS_DEBUG->print("RS_PreviewActionInterface::RS_PreviewActionInterface: Setting up action with preview: \"%s\": OK", name);
}
/** Destructor */
RS_PreviewActionInterface::~RS_PreviewActionInterface() {
deletePreview();
}
void RS_PreviewActionInterface::init(int status) {
deletePreview();
RS_ActionInterface::init(status);
}
void RS_PreviewActionInterface::finish(bool updateTB) {
deletePreview();
RS_ActionInterface::finish(updateTB);
}
void RS_PreviewActionInterface::suspend() {
RS_ActionInterface::suspend();
deletePreview();
}
void RS_PreviewActionInterface::resume() {
RS_ActionInterface::resume();
drawPreview();
}
void RS_PreviewActionInterface::trigger() {
RS_ActionInterface::trigger();
deletePreview();
}
/**
* Deletes the preview from the screen.
*/
void RS_PreviewActionInterface::deletePreview() {
if (hasPreview){
//avoid deleting NULL or empty preview
preview->clear();
hasPreview=false;
}
if(!graphicView->isCleanUp()){
graphicView->getOverlayContainer(RS2::ActionPreviewEntity)->clear();
}
}
/**
* Draws / deletes the current preview.
*/
void RS_PreviewActionInterface::drawPreview() {
// RVT_PORT How does offset work?? painter->setOffset(offset);
RS_EntityContainer *container=graphicView->getOverlayContainer(RS2::ActionPreviewEntity);
container->clear();
container->setOwner(false); // Little hack for now so we don't delete the preview twice
container->addEntity(preview.get());
graphicView->redraw(RS2::RedrawOverlay);
hasPreview=true;
}