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/* This file is part of the KDE project
* Copyright (C) 2006 Thomas Zander <zander@kde.org>
* Copyright (C) 2007,2009 Thorsten Zachmann <zachmann@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef KOSHAPEBORDERMODEL_H
#define KOSHAPEBORDERMODEL_H
#include "KoInsets.h"
#include <QPainter>
#include "flake_export.h"
class KoShape;
class KoGenStyle;
class KoShapeSavingContext;
class KoViewConverter;
/**
* A model for borders around KoShapes.
* Classes that implement this model will be allowed to draw a border on the outline
* of a shape.
* Note that since the important members take a KoShape as argument it is possible,
* and preferred behavior, to have one instance of a border that is reused on several
* objects.
*/
class FLAKE_EXPORT KoShapeBorderModel
{
public:
KoShapeBorderModel();
virtual ~KoShapeBorderModel();
/**
* @brief Fill the style object (aka save)
*
* @param style object
* @param context used for saving
*/
virtual void fillStyle(KoGenStyle &style, KoShapeSavingContext &context) const = 0;
/**
* Return a borderInsets object filled with the size inside the shape that this border takes.
* @param shape the shape the insets will be calculated for
* @param insets the insets object that will be filled and returned.
*/
virtual void borderInsets(const KoShape *shape, KoInsets &insets) const = 0;
/**
* Returns true if there is some transparency, false if the border is fully opaque.
* @return if the border is transparent.
*/
virtual bool hasTransparency() const = 0;
/**
* Paint the border.
* This method should paint the border around shape.
* @param shape the shape to paint around
* @param painter the painter to paint to, the painter will have the topleft of the
* shape as its start coordinate.
* @param converter to convert between internal and view coordinates.
*/
virtual void paint(KoShape *shape, QPainter &painter, const KoViewConverter &converter) = 0;
/**
* Paint the border in the given color
*
* This method should paint the border around the shape in the given color.
*
* @param shape the shape to paint around
* @param painter the painter to paint to, the painter will have the topleft of the
* shape as its start coordinate.
* @param converter to convert between internal and view coordinates.
* @param color to use to paint the border.
*/
virtual void paint(KoShape *shape, QPainter &painter, const KoViewConverter &converter, const QColor &color) = 0;
/**
* Increments the use-value.
* Returns true if the new value is non-zero, false otherwise.
*/
bool ref();
/**
* Decrements the use-value.
* Returns true if the new value is non-zero, false otherwise.
*/
bool deref();
/// Return the usage count
int useCount() const;
private:
class Private;
Private * const d;
};
#endif
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