diff options
Diffstat (limited to 'basegfx/inc/basegfx')
-rw-r--r-- | basegfx/inc/basegfx/matrix/b2dhommatrixtools.hxx | 6 | ||||
-rw-r--r-- | basegfx/inc/basegfx/numeric/ftools.hxx | 2 | ||||
-rw-r--r-- | basegfx/inc/basegfx/tools/gradienttools.hxx | 18 | ||||
-rw-r--r-- | basegfx/inc/basegfx/tools/keystoplerp.hxx | 100 | ||||
-rw-r--r-- | basegfx/inc/basegfx/tools/lerp.hxx | 60 |
5 files changed, 182 insertions, 4 deletions
diff --git a/basegfx/inc/basegfx/matrix/b2dhommatrixtools.hxx b/basegfx/inc/basegfx/matrix/b2dhommatrixtools.hxx index 0b200b812bed..54d961d40ac2 100644 --- a/basegfx/inc/basegfx/matrix/b2dhommatrixtools.hxx +++ b/basegfx/inc/basegfx/matrix/b2dhommatrixtools.hxx @@ -36,6 +36,8 @@ #include <basegfx/matrix/b2dhommatrix.hxx> #include <basegfx/vector/b2dvector.hxx> +namespace rtl { class OUString; } + /////////////////////////////////////////////////////////////////////////////// namespace basegfx @@ -79,6 +81,10 @@ namespace basegfx double getRotate() const { const_cast< DecomposedB2DHomMatrixContainer* >(this)->impCheckDecompose(); return mfRotate; } double getShearX() const { const_cast< DecomposedB2DHomMatrixContainer* >(this)->impCheckDecompose(); return mfShearX; } }; + + /// Returns a string with svg's "matrix(m00,m10,m01,m11,m02,m12)" representation + ::rtl::OUString exportToSvg( const B2DHomMatrix& rMatrix ); + } // end of namespace basegfx /////////////////////////////////////////////////////////////////////////////// diff --git a/basegfx/inc/basegfx/numeric/ftools.hxx b/basegfx/inc/basegfx/numeric/ftools.hxx index 5003ede0c4cf..6cecbecc1f9f 100644 --- a/basegfx/inc/basegfx/numeric/ftools.hxx +++ b/basegfx/inc/basegfx/numeric/ftools.hxx @@ -112,7 +112,7 @@ namespace basegfx /** clamp given value against given minimum and maximum values */ - template <class T> const T& clamp(const T& value, const T& minimum, const T& maximum) + template <class T> inline const T& clamp(const T& value, const T& minimum, const T& maximum) { if(value < minimum) { diff --git a/basegfx/inc/basegfx/tools/gradienttools.hxx b/basegfx/inc/basegfx/tools/gradienttools.hxx index 0c7f2ab2c060..dbcc5a3221f0 100644 --- a/basegfx/inc/basegfx/tools/gradienttools.hxx +++ b/basegfx/inc/basegfx/tools/gradienttools.hxx @@ -37,6 +37,9 @@ #include <basegfx/matrix/b2dhommatrix.hxx> #include <basegfx/numeric/ftools.hxx> +#include <vector> +#include <algorithm> + namespace basegfx { /** Gradient definition as used in ODF 1.2 @@ -78,6 +81,8 @@ namespace basegfx { /** Create matrix for ODF's linear gradient definition + Note that odf linear gradients are varying in y direction. + @param o_rGradientInfo Receives the calculated texture transformation matrix (for use with standard [0,1]x[0,1] texture coordinates) @@ -109,7 +114,7 @@ namespace basegfx @param rUV Current uv coordinate. Values outside [0,1] will be - clamped. + clamped. Assumes gradient color varies along the y axis. @param rGradInfo Gradient info, for transformation and number of steps @@ -129,6 +134,14 @@ namespace basegfx /** Create matrix for ODF's axial gradient definition + Note that odf axial gradients are varying in y + direction. Note further that you can map the axial + gradient to a linear gradient (in case you want or need to + avoid an extra gradient renderer), by using + createLinearODFGradientInfo() instead, shifting the + resulting texture transformation by 0.5 to the top and + appending the same stop colors again, but mirrored. + @param o_rGradientInfo Receives the calculated texture transformation matrix (for use with standard [0,1]x[0,1] texture coordinates) @@ -160,7 +173,7 @@ namespace basegfx @param rUV Current uv coordinate. Values outside [0,1] will be - clamped. + clamped. Assumes gradient color varies along the y axis. @param rGradInfo Gradient info, for transformation and number of steps @@ -394,7 +407,6 @@ namespace basegfx { return getSquareGradientAlpha(rUV, rGradInfo); // only matrix setup differs } - } } diff --git a/basegfx/inc/basegfx/tools/keystoplerp.hxx b/basegfx/inc/basegfx/tools/keystoplerp.hxx new file mode 100644 index 000000000000..a54b3485b1a1 --- /dev/null +++ b/basegfx/inc/basegfx/tools/keystoplerp.hxx @@ -0,0 +1,100 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2008 by Sun Microsystems, Inc. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * $RCSfile: canvastools.hxx,v $ + * $Revision: 1.10 $ + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef _BGFX_TOOLS_KEYSTOPLERP_HXX +#define _BGFX_TOOLS_KEYSTOPLERP_HXX + +#include <basegfx/numeric/ftools.hxx> +#include <vector> + +namespace com{ namespace sun{ namespace star{ namespace uno { + template<typename T> class Sequence; +}}}} + +namespace basegfx +{ + namespace tools + { + /** Lerp in a vector of key stops + + This class holds a key stop vector and provides the + functionality to lerp inside it. Useful e.g. for + multi-stop gradients, or the SMIL key time activity. + + For those, given a global [0,1] lerp alpha, one need to + find the suitable bucket index from key stop vector, and + then calculate the relative alpha between the two buckets + found. + */ + class KeyStopLerp + { + public: + typedef std::pair<std::ptrdiff_t,double> ResultType; + + /** Create lerper with given vector of stops + + @param rKeyStops + + Vector of stops, must contain at least two elements + (though preferrably more, otherwise you probably don't + need key stop lerping in the first place). All + elements must be of monotonically increasing value. + */ + explicit KeyStopLerp( const std::vector<double>& rKeyStops ); + + /** Create lerper with given sequence of stops + + @param rKeyStops + + Sequence of stops, must contain at least two elements + (though preferrably more, otherwise you probably don't + need key stop lerping in the first place). All + elements must be of monotonically increasing value. + */ + explicit KeyStopLerp( const ::com::sun::star::uno::Sequence<double>& rKeyStops ); + + /** Find two nearest bucket index & interpolate + + @param fAlpha + Find bucket index i, with keyStops[i] < fAlpha <= + keyStops[i+1]. Return new alpha value in [0,1), + proportional to fAlpha's position between keyStops[i] + and keyStops[i+1] + */ + ResultType lerp(double fAlpha) const; + + private: + std::vector<double> maKeyStops; + mutable std::ptrdiff_t mnLastIndex; + }; + } +} + +#endif diff --git a/basegfx/inc/basegfx/tools/lerp.hxx b/basegfx/inc/basegfx/tools/lerp.hxx new file mode 100644 index 000000000000..590ef34c2009 --- /dev/null +++ b/basegfx/inc/basegfx/tools/lerp.hxx @@ -0,0 +1,60 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2008 by Sun Microsystems, Inc. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * $RCSfile: lerp.hxx,v $ + * $Revision: 1.6 $ + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef _BGFX_TOOLS_LERP_HXX +#define _BGFX_TOOLS_LERP_HXX + +#include <sal/types.h> + +namespace basegfx +{ + namespace tools + { + /** Generic linear interpolator + + @tpl ValueType + Must have operator+ and operator* defined, and should + have value semantics. + + @param t + As usual, t must be in the [0,1] range + */ + template< typename ValueType > ValueType lerp( const ValueType& rFrom, + const ValueType& rTo, + double t ) + { + // This is only to suppress a double->int warning. All other + // types should be okay here. + return static_cast<ValueType>( (1.0-t)*rFrom + t*rTo ); + } + } +} + +#endif /* _BGFX_TOOLS_LERP_HXX */ |