bitmapbucket.h

/*
 
Pencil2D - Traditional Animation Software
Copyright (C) 2005-2007 Patrick Corrieri & Pascal Naidon
Copyright (C) 2012-2020 Matthew Chiawen Chang
 
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; version 2 of the License.
 
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.
 
*/
#ifndef BITMAPBUCKET_H
#define BITMAPBUCKET_H
 
#include "bitmapimage.h"
#include "basetool.h"
 
#include <functional>
 
class Layer;
class Editor;
 
enum class BucketState
{
    WillFillTarget, // Before applying to target image
    DidFillTarget, // After calling floodfill and applied to target
};
 
class BitmapBucket
{
public:
    explicit BitmapBucket();
    explicit BitmapBucket(Editor* editor, QColor color, QRect maxFillRegion, QPointF fillPoint, Properties properties);
 
    void paint(const QPointF& updatedPoint, std::function<void(BucketState, int, int)> progress);
 
private:
 
 
    bool allowFill(const QPoint& checkPoint, const QRgb& checkColor) const;
    bool allowContinuousFill(const QPoint& checkPoint, const QRgb& checkColor) const;
 
    bool canUseDragToFill(const QPoint& fillPoint, const QColor& bucketColor, const BitmapImage& referenceImage);
 
    BitmapImage flattenBitmapLayersToImage();
 
    Editor* mEditor = nullptr;
    Layer* mTargetFillToLayer = nullptr;
 
    QHash<QRgb, bool> *mPixelCache;
 
    BitmapImage mReferenceImage;
    QRgb mBucketColor = 0;
    QRgb mStartReferenceColor = 0;
 
    QRect mMaxFillRegion;
 
    int mTolerance = 0;
 
    int mTargetFillToLayerIndex = -1;
    bool mFilledOnce = false;
    bool mUseDragToFill = false;
 
    Properties mProperties;
};
 
#endif // BITMAPBUCKET_H