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/* Copyright (C) 2004 MySQL AB
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/**
* @file myx_gc_layout.h
* @brief Implementation of the layouter classes.
*
*/
#ifndef __GC_LAYOUT_H__
#define __GC_LAYOUT_H__
#include "myx_gc_figure.h"
//----------------------------------------------------------------------------------------------------------------------
/** Abstract base class for all layouter classes. */
class CLayouter
{
protected:
float FX, FY; // The current coordinates.
CFigureElement* FElement; // The element we are layouting.
CElementList::iterator FIterator; // The iterator used to go through the child list of the element to layout.
public:
CLayouter(CFigureElement* Element);
virtual ~CLayouter(void) {};
TBoundingBox boundingBoxForChild(CFigureElement* child);
virtual bool distributeSizeChange(float dX, float dY, TFeedbackInfo info) = 0;
CFigureElement* elementFromPoint(TVertex coords);
TAction* executeAssociatedActions(TMouseButton button, TMouseEvent event, int modifiers, const TVertex& coords);
TFeedbackInfo getFeedbackInfo(int modifiers, const TVertex& coords);
virtual bool hasNext(void);
virtual void nextBoundingBox(TBoundingBox* BoundingBox) = 0;
virtual void renderNext(void);
void reset(void);
};
class CColumnLayouter: public CLayouter
{
public:
CColumnLayouter(CFigureElement* Element): CLayouter(Element) {};
virtual ~CColumnLayouter(void) {};
virtual bool distributeSizeChange(float dX, float dY, TFeedbackInfo info);
virtual void nextBoundingBox(TBoundingBox* BoundingBox);
};
class CRowLayouter: public CLayouter
{
public:
CRowLayouter(CFigureElement* Element): CLayouter(Element) {};
virtual bool distributeSizeChange(float dX, float dY, TFeedbackInfo info);
virtual void nextBoundingBox(TBoundingBox* BoundingBox);
};
//----------------- Layout mapper --------------------------------------------------------------------------------------
/** The layout mapper provides a simple way of getting a layouter class for a particular layout. */
class LayoutMapper
{
public:
static CLayouter* layouterForElement(CFigureElement* Element);
};
//----------------------------------------------------------------------------------------------------------------------
#endif // __GC_LAYOUT_H__
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