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131 lines
3.7 KiB
131 lines
3.7 KiB
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/*
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Copyright (c) 2003,2004,2005 Clarence Dang <dang@kde.org>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef KP_EFFECT_INVERT_H
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#define KP_EFFECT_INVERT_H
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#include <kpcoloreffect.h>
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class TQCheckBox;
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class TQImage;
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class kpMainWindow;
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class kpEffectInvertCommand : public kpColorEffectCommand
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{
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public:
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enum Channel
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{
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None = 0,
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Red = 1, Green = 2, Blue = 4,
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RGB = Red | Green | Blue
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};
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kpEffectInvertCommand (int channels,
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bool actOnSelection,
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kpMainWindow *mainWindow);
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kpEffectInvertCommand (bool actOnSelection,
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kpMainWindow *mainWindow);
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virtual ~kpEffectInvertCommand ();
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//
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// Inverts the colours of each pixel in the given image.
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// These functions differ from TQImage::invertPixels() in the following ways:
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//
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// 1. for 8-bit images, it inverts the colours of the Colour Table
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// (this means that you would get visually similar results to inversion
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// at higher bit depths - rather than a "random-looking" inversion
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// depending on the contents of the Colour Table)
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// 2. never inverts the Alpha Buffer
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//
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static void apply (TQPixmap *destPixmapPtr, int channels = RGB);
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static TQPixmap apply (const TQPixmap &pm, int channels = RGB);
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static void apply (TQImage *destImagePtr, int channels = RGB);
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static TQImage apply (const TQImage &img, int channels = RGB);
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//
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// kpColorEffectCommand interface
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//
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public:
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virtual bool isInvertible () const { return true; }
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protected:
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virtual TQPixmap applyColorEffect (const TQPixmap &pixmap);
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int m_channels;
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};
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class kpEffectInvertWidget : public kpColorEffectWidget
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{
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Q_OBJECT
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public:
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kpEffectInvertWidget (bool actOnSelection,
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kpMainWindow *mainWindow,
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TQWidget *parent, const char *name = 0);
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virtual ~kpEffectInvertWidget ();
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int channels () const;
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//
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// kpColorEffectWidget interface
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//
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virtual TQString caption () const;
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virtual bool isNoOp () const;
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virtual TQPixmap applyColorEffect (const TQPixmap &pixmap);
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virtual kpColorEffectCommand *createCommand () const;
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protected slots:
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void slotRGBCheckBoxToggled ();
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void slotAllCheckBoxToggled ();
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protected:
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TQCheckBox *m_redCheckBox, *m_greenCheckBox, *m_blueCheckBox,
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*m_allCheckBox;
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// blockSignals() didn't seem to work
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bool m_inSignalHandler;
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};
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#endif // KP_EFFECT_INVERT_H
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