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94 lines
3.6 KiB
94 lines
3.6 KiB
/*
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* Copyright (c) 2004 Boudewijn Rempt <boud@valdyas.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef KIS_COLORSPACE_ALPHA_H_
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#define KIS_COLORSPACE_ALPHA_H_
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#include <tqcolor.h>
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#include "kis_global.h"
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#include "kis_u8_base_colorspace.h"
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/**
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* The alpha mask is a special color strategy that treats all pixels as
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* alpha value with a colour common to the mask. The default color is white.
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*/
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class KisAlphaColorSpace : public KisU8BaseColorSpace {
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public:
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KisAlphaColorSpace(KisColorSpaceFactoryRegistry * parent,
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KisProfile *p);
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virtual ~KisAlphaColorSpace();
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public:
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virtual bool willDegrade(ColorSpaceIndependence)
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{
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return false;
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};
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virtual void fromTQColor(const TQColor& c, TQ_UINT8 *dst, KisProfile * profile = 0);
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virtual void fromTQColor(const TQColor& c, TQ_UINT8 opacity, TQ_UINT8 *dst, KisProfile * profile = 0);
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virtual void getAlpha(const TQ_UINT8 *pixel, TQ_UINT8 *alpha) const;
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virtual void toTQColor(const TQ_UINT8 *src, TQColor *c, KisProfile * profile = 0);
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virtual void toTQColor(const TQ_UINT8 *src, TQColor *c, TQ_UINT8 *opacity, KisProfile * profile = 0);
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virtual TQ_UINT8 difference(const TQ_UINT8 *src1, const TQ_UINT8 *src2);
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virtual void mixColors(const TQ_UINT8 **colors, const TQ_UINT8 *weights, TQ_UINT32 nColors, TQ_UINT8 *dst) const;
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virtual TQValueVector<KisChannelInfo *> channels() const;
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virtual TQ_UINT32 nChannels() const { return 1; };
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virtual TQ_UINT32 nColorChannels() const { return 0; };
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virtual TQ_UINT32 pixelSize() const { return 1; };
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virtual TQString channelValueText(const TQ_UINT8 *pixel, TQ_UINT32 channelIndex) const;
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virtual TQString normalisedChannelValueText(const TQ_UINT8 *pixel, TQ_UINT32 channelIndex) const;
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virtual void convolveColors(TQ_UINT8** colors, TQ_INT32* kernelValues, KisChannelInfo::enumChannelFlags channelFlags, TQ_UINT8 *dst, TQ_INT32 factor, TQ_INT32 offset, TQ_INT32 nColors) const;
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protected:
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/**
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* Convert a byte array of srcLen pixels *src to the specified color space
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* and put the converted bytes into the prepared byte array *dst.
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*
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* Returns false if the conversion failed, true if it succeeded
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*/
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virtual bool convertPixelsTo(const TQ_UINT8 *src,
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TQ_UINT8 *dst, KisAbstractColorSpace * dstColorSpace,
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TQ_UINT32 numPixels,
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TQ_INT32 renderingIntent = INTENT_PERCEPTUAL);
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virtual void bitBlt(TQ_UINT8 *dst,
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TQ_INT32 dststride,
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const TQ_UINT8 *src,
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TQ_INT32 srcRowStride,
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const TQ_UINT8 *srcAlphaMask,
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TQ_INT32 maskRowStride,
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TQ_UINT8 opacity,
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TQ_INT32 rows,
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TQ_INT32 cols,
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const KisCompositeOp& op);
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KisCompositeOpList userVisiblecompositeOps() const;
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};
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#endif // KIS_COLORSPACE_ALPHA_H_
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