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112 lines
3.1 KiB
112 lines
3.1 KiB
15 years ago
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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_COLOR_EFFECT_H
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#define KP_COLOR_EFFECT_H
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#include <qstring.h>
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#include <qwidget.h>
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#include <kpcommandhistory.h>
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class QPixmap;
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class kpDocument;
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class kpMainWindow;
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class kpColorEffectCommand : public kpCommand
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{
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public:
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kpColorEffectCommand (const QString &name,
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bool actOnSelection,
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kpMainWindow *mainWindow);
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virtual ~kpColorEffectCommand ();
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virtual QString name () const;
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virtual int size () const;
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public:
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virtual void execute ();
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virtual void unexecute ();
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public:
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// Return true if applyColorEffect(applyColorEffect(pixmap)) == pixmap
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// to avoid storing the old pixmap, saving memory.
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virtual bool isInvertible () const { return false; }
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protected:
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virtual QPixmap applyColorEffect (const QPixmap &pixmap) = 0;
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private:
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QString m_name;
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bool m_actOnSelection;
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QPixmap *m_oldPixmapPtr;
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};
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class kpColorEffectWidget : public QWidget
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{
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Q_OBJECT
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public:
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kpColorEffectWidget (bool actOnSelection,
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kpMainWindow *mainWindow,
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QWidget *parent, const char *name = 0);
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virtual ~kpColorEffectWidget ();
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signals:
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void settingsChangedNoWaitCursor ();
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void settingsChanged ();
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// (same as settingsChanged() but preview doesn't update until there
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// has been no activity for a while - used for sliders in slow effects)
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void settingsChangedDelayed ();
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public:
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virtual QString caption () const;
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virtual bool isNoOp () const = 0;
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virtual QPixmap applyColorEffect (const QPixmap &pixmap) = 0;
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virtual kpColorEffectCommand *createCommand () const = 0;
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protected:
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int marginHint () const;
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int spacingHint () const;
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protected:
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bool m_actOnSelection;
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kpMainWindow *m_mainWindow;
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};
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#endif // KP_COLOR_EFFECT_H
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