diff options
Diffstat (limited to 'basegfx/inc/basegfx/tools/gradienttools.hxx')
| -rw-r--r-- | basegfx/inc/basegfx/tools/gradienttools.hxx | 18 |
1 files changed, 15 insertions, 3 deletions
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 } - } } |