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koffice/chalk/ui/kis_part_layer.h

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/*
* Copyright (c) 2005 Boudewijn Rempt <boud@valdyas.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*/
#ifndef _KIS_PART_LAYER_
#define _KIS_PART_LAYER_
#include <tqrect.h>
#include <KoDocument.h>
#include <KoDocumentChild.h>
#include "kis_paint_layer.h"
#include "kis_types.h"
#include "kis_doc.h"
#include "kis_part_layer_iface.h"
#include "kis_view.h"
#include "kis_layer_visitor.h"
class KoFrame;
class KoDocument;
/**
* The child document is responsible for saving and loading the embedded layers.
*/
class KisChildDoc : public KoDocumentChild
{
public:
KisChildDoc ( KisDoc * kisDoc, const TQRect& rect, KoDocument * childDoc );
KisChildDoc ( KisDoc * kisDdoc );
virtual ~KisChildDoc();
KisDoc * parent() const { return m_doc; }
void setPartLayer (KisPartLayerSP layer) { m_partLayer = layer; }
KisPartLayerSP partLayer() const { return m_partLayer; }
protected:
KisDoc * m_doc;
KisPartLayerSP m_partLayer;
};
/**
* A PartLayer is a layer that contains a KOffice Part like a KWord document
* or a KSpread spreadsheet. Or whatever. A Karbon drawing.
*
* The part is rendered into an RBGA8 paint device so we can composite it with
* the other layers.
*
* When it is activated (see activate()), it draws a rectangle around itself on the kisdoc,
* whereas when it is deactivated (deactivate()), it removes that rectangle and commits
* the child to the paint device.
*
* Embedded parts should get loaded and saved to the Native Chalk Fileformat natively.
*/
class KisPartLayerImpl : public KisPartLayer {
Q_OBJECT
TQ_OBJECT
typedef KisPartLayer super;
public:
KisPartLayerImpl(KisImageSP img, KisChildDoc * doc);
virtual ~KisPartLayerImpl();
virtual KisLayerSP clone() const;
/// Called when the layer is made active
virtual void activate() {}
/// Called when another layer is made inactive
virtual void deactivate() {}
/// Returns the childDoc so that we can access the doc from other places, if need be (KisDoc)
virtual KisChildDoc* childDoc() const { return m_doc; }
void setDocType(const TQString& type) { m_docType = type; }
TQString docType() const { return m_docType; }
virtual void setX(TQ_INT32 x);
virtual void setY(TQ_INT32 y);
virtual TQ_INT32 x() const { return m_doc->geometry() . x(); }
virtual TQ_INT32 y() const { return m_doc->geometry() . y(); } //m_paintLayer->y(); }
virtual TQRect extent() const { return m_doc->geometry(); }
virtual TQRect exactBounds() const { return m_doc->geometry(); }
virtual TQImage createThumbnail(TQ_INT32 w, TQ_INT32 h);
virtual bool accept(KisLayerVisitor& visitor) {
return visitor.visit(this);
}
virtual KisPaintDeviceSP prepareProjection(KisPaintDeviceSP projection, const TQRect& r);
virtual void paintSelection(TQImage &img, TQ_INT32 x, TQ_INT32 y, TQ_INT32 w, TQ_INT32 h);
virtual bool saveToXML(TQDomDocument doc, TQDomElement elem);
private slots:
/// Repaints our device with the data from the embedded part
//void repaint();
/// When we activate the embedding, we clear ourselves
void childActivated(KoDocumentChild* child);
void childDeactivated(bool activated);
private:
// KisPaintLayerSP m_paintLayer;
KisPaintDeviceSP m_cache;
KoFrame * m_frame; // The widget that holds the editable view of the embedded part
KisChildDoc * m_doc; // The sub-document
TQString m_docType;
bool m_activated;
};
/**
* Visitor that connects all partlayers in an image to a KisView's signals
*/
class KisConnectPartLayerVisitor : public KisLayerVisitor {
KisImageSP m_img;
KisView* m_view;
bool m_connect; // connects, or disconnects signals
public:
KisConnectPartLayerVisitor(KisImageSP img, KisView* view, bool mode);
virtual ~KisConnectPartLayerVisitor() {}
virtual bool visit(KisPaintLayer *layer);
virtual bool visit(KisGroupLayer *layer);
virtual bool visit(KisPartLayer *layer);
virtual bool visit(KisAdjustmentLayer *layer);
};
#endif // _KIS_PART_LAYER_