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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
module com { module sun { module star { module rendering {
/** Information how to interpret certain color data.<p>
This interface encapsulates all information that is necessary to
interpret color data, by defining a describing color space, like
for example CMYK or sRGB. You can either convert between this and
an arbitrary other color space, or into the standard RGB or ARGB
formats (because those are so overwhelmingly common in computer
graphics).<p>
All canvas interfaces standardize to sequences of IEEE doubles for
color representation. As this is overly verbose when used for
bitmap data, derived interfaces exist,
e.g. XIntegerBitmapColorSpace, which use sequences of
integers for color representation.<p>
*/
interface XColorSpace
{
/** Query type of this color space.<p>
@return a value from the ColorSpaceType constant
group.
*/
byte getType();
/** Query the kind for each color component.<p>
Color space components tend to correspond to physical
attributes like the amount of one specific colorant contained
in the final output color. This method returns a sequence of
tags, specifying for each component of a color value, to what
color attribute (if any) it corresponds. The values must be
one of the ColorComponentTag constants.<p>
At the same time, the number of elements in this sequence
corresponds to the number of color channels for this color
space.<p>
@remark For the standard RGB color space, ComponentTags
consists of three elements, containing RGB_RED, RGB_GREEN and
RGB_BLUE tags, respectively
*/
sequence<byte> getComponentTags();
/** Query rendering intent of this color space.<p>
@return a value from the RenderingIntent constant
group.
*/
byte getRenderingIntent();
/** Query various optional properties from the color space.<p>
If this color space has an ICC color profile, the sequence
contains an element named ICCProfile. Some color spaces also
have properties Gamma, Whitepoint and Blackpoint. Background
information for these is available <a
href="http://en.wikipedia.org/wiki/Color_temperature">here</a>.
*/
sequence< ::com::sun::star::beans::PropertyValue > getProperties();
/** Convert to color of another color space.<p>
@param deviceColor Sequence of device color components. Is
permitted to contain more than one device color element,
therefore, batch conversion of multiple color values is
possible.
@param targetColorSpace the color space to convert to.
@return the corresponding sequence of device colors in the
target color space (e.g. `sequence<double>` or
`sequence<byte>`).
@throws a
com::sun::star::lang::IllegalArgumentException,
if the input sequence does not match the device color format
(e.g. if the number of components is wrong)
*/
sequence<ColorComponent> convertColorSpace( [in] sequence<ColorComponent> deviceColor, [in] XColorSpace targetColorSpace )
raises (com::sun::star::lang::IllegalArgumentException);
/** Convert color value in this color space to sRGB color values.<p>
Any information not representable in the RGBColor
struct is discarded during the conversion. This includes alpha
information.
@param deviceColor Sequence of device color components. Is
permitted to contain more than one device color element,
therefore, batch conversion of multiple color values is
possible.
@return the corresponding sequence of colors in the sRGB color
space.
@throws a
com::sun::star::lang::IllegalArgumentException,
if the input sequence does not match the device color format.
@see convertToARGB()
*/
sequence<RGBColor> convertToRGB( [in] sequence<ColorComponent> deviceColor )
raises (com::sun::star::lang::IllegalArgumentException);
/** Convert color value in this color space to sRGB color values, with linear alpha.<p>
If the given input color does not carry alpha information, an
alpha value of 1.0 (fully opaque) is assumed.
@param deviceColor Sequence of device color components. Is
permitted to contain more than one device color element,
therefore, batch conversion of multiple color values is
possible.
@return the corresponding sequence of colors in the sRGB color
space.
@throws a
com::sun::star::lang::IllegalArgumentException,
if the input sequence does not match the device color format.
*/
sequence<ARGBColor> convertToARGB( [in] sequence<ColorComponent> deviceColor )
raises (com::sun::star::lang::IllegalArgumentException);
/** Convert color value in this color space to premultiplied sRGB
color values, with linear alpha.<p>
If the given input color does not carry alpha information, an
alpha value of 1.0 (fully opaque) is assumed. The resulting
individual RGB color values are premultiplied by the alpha
value (e.g. if alpha is 0.5, each color value has only half of
the original intensity).<p>
@param deviceColor Sequence of device color components. Is
permitted to contain more than one device color element,
therefore, batch conversion of multiple color values is
possible.
@return the corresponding sequence of colors in the sRGB color
space.
@throws a
com::sun::star::lang::IllegalArgumentException,
if the input sequence does not match the device color format.
*/
sequence<ARGBColor> convertToPARGB( [in] sequence<ColorComponent> deviceColor )
raises (com::sun::star::lang::IllegalArgumentException);
/** Convert sRGB color to a representation in this color space.<p>
If this color space conveys alpha information, it is assumed
be fully opaque for the given RGB color value.
@param rgbColor Sequence of sRGB color components. Is
permitted to contain more than one color element, therefore,
batch conversion of multiple color values is possible.
@return the corresponding sequence of device colors.
@throws a
com::sun::star::lang::IllegalArgumentException,
if the input sequence does not match the device color format.
*/
sequence<ColorComponent> convertFromRGB( [in] sequence<RGBColor> rgbColor )
raises (com::sun::star::lang::IllegalArgumentException);
/** Convert sRGB color with linear alpha into this color space.<p>
If this color space does not convey alpha information, the
specified alpha value is silently ignored.
@param rgbColor Sequence of sRGB color components. Is
permitted to contain more than one color element, therefore,
batch conversion of multiple color values is possible.
@return the corresponding sequence of device colors.
@throws a
com::sun::star::lang::IllegalArgumentException,
if the input sequence does not match the device color format.
*/
sequence<ColorComponent> convertFromARGB( [in] sequence<ARGBColor> rgbColor )
raises (com::sun::star::lang::IllegalArgumentException);
/** Convert premultiplied sRGB color with linear alpha into this
color space.<p>
If this color space does not convey alpha information, the
specified alpha value is silently ignored.
@param rgbColor Sequence of sRGB color components. Is
permitted to contain more than one color element, therefore,
batch conversion of multiple color values is possible. The
individual color values are assumed to be premultiplied by the
alpha value.
@return the corresponding sequence of device colors.
@throws a
com::sun::star::lang::IllegalArgumentException,
if the input sequence does not match the device color format.
*/
sequence<ColorComponent> convertFromPARGB( [in] sequence<ARGBColor> rgbColor )
raises (com::sun::star::lang::IllegalArgumentException);
};
}; }; }; };
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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