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/* This file is proposed to be part of the KDE libraries.
* Copyright (C) 2003 Laur Ivan <laurivan@eircom.net>
*
* Many thanks to:
* - Tim Jansen <tim@tjansen.de> for the API updates and fixes.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License version 2 as published by the Free Software Foundation.
*
* 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 __FX_DATA
#define __FX_DATA
#define SHADOW_CONFIG_ENTRY QString("ShadowParameters")
#define SHADOW_TEXT_COLOR QString("ShadowTextColor")
#define SHADOW_TEXT_BACKGROUND QString("ShadowTextBackground")
// fallback configuration string
#define DEFAULT_SHADOW_CONFIGURATION QString("0,0,4.0,120.0,2,1,1,0,0,0")
/**
* This class is the implementation of a structure for the
* various parameters required by the shadow class.
*
* One may afford this implementation since the shadow class is
* designed to be used as singleton for an application.
* @see KShadowEngine
* @author laur.ivan@corvil.com
* @since 3.2
*/
class KShadowSettings
{
public:
/**
* Specifies the order of the options.
* @see fromString
*/
enum ConfigurationOrder
{
OFFSET_X = 0,
OFFSET_Y = OFFSET_X + 1,
MULTIPLICATION_FACTOR = OFFSET_Y + 1,
MAX_OPACITY = MULTIPLICATION_FACTOR + 1,
THICKNESS = MAX_OPACITY + 1,
ALGORITHM = THICKNESS + 1,
SELECTION_TYPE = ALGORITHM + 1
};
public:
/**
* The algorithm used.
*/
enum Algorithm
{
DefaultDecay = 1, ///< the default AXIS/DIAGONAL_FACTOR based alg
DoubleLinearDecay, ///< decay factor is 1/dx+dy
RadialDecay, ///< decay factor is 1/sqrt(dx*dx + dy*dy)
NoDecay ///< decay factor is 1 always
};
/**
* The selected method used.
*/
enum SelectionType
{
InverseVideoOnSelection = 0, ///< when selected, the halo is on I/Video
SelectionColorsOnSelection ///< the halo is made w/ selected colors
};
/**
* The default constructor.
* Creates an object with default settings for all the variabless.
*/
KShadowSettings();
// load/save methods
/**
* Loads the configuration from a string.
* @param the string to load from (comma-separated values)
* @see ConfigurationOrder
*/
virtual void fromString(const QString &s);
/**
* Saves the configuration to a string.
* @return the configuration (comma-separated values)
* @see ConfigurationOrder
*/
virtual QString toString() const;
// get methods
/**
* Returns the x offset of the shadow.
* @return the x offset
*/
int offsetX() const;
/**
* Returns the y offset of the shadow.
* @return the y offset
*/
int offsetY() const;
/**
* Returns the multiplication factor.
* @return the multiplication factor
*/
double multiplicationFactor() const;
/**
* Returns the maximum opacity of the shadow.
* @return the maximum opacity
*/
double maxOpacity() const;
/**
* Returns the thickness.
* @return the thickness
*/
int thickness() const;
/**
* Returns the used algorithm.
* @return the algorithm used
*/
Algorithm algorithm() const;
/**
* Returns the selection type used.
* @return the selection type
*/
SelectionType selectionType() const;
// set methods
/**
* Sets default values.
*/
virtual void setDefaults();
/**
* Sets the used algorithm.
* @param a the algorithm used
*/
virtual void setAlgorithm(Algorithm a);
/**
* Sets the multiplication factor.
* @param mf the multiplication factor
*/
virtual void setMultiplicationFactor(double mf);
/**
* Sets the maximum opacity of the shadow.
* @param mo the maximum opacity
*/
virtual void setMaxOpacity(double mo);
/**
* Sets the x offset of the shadow.
* @param x the x offset
*/
virtual void setOffsetX(int x);
/**
* Sets the y offset of the shadow.
* @param y the y offset
*/
virtual void setOffsetY(int y);
/**
* Sets the thickness.
* @param t the thickness
*/
virtual void setThickness(int t);
/**
* Sets the selection type used.
* @param s the selection type
*/
virtual void setSelectionType(SelectionType s);
private:
/*
* The employed algorithm (see fxshadow.h)
*/
Algorithm _algorithm;
/**
* This is the multiplication factor for the resulted shadow
*/
double _multiplicationFactor;
/**
* The maximum permitted opacity for the shadow
*/
double _maxOpacity;
/*
* offsetX and offsetY are the x/y offsets of the shadow with
* the mention that 0,0 is a centered shadow.
*/
int _offsetX;
int _offsetY;
/*
* The shadow thickness:
* shadow is this many pixels thicker than the text.
*/
int _thickness;
/*
* If the value is InverseVideoOnSelection, then the fg/bg
* colours are swapped when the element is selected.
* Otherwise, the selected fg/bg colors are used for text
* as well
*/
SelectionType _selectionType;
void *d;
};
#endif
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