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64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "clutter-cairo.h"
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#include "clutter-color.h"
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/**
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* clutter_cairo_set_source_color:
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* @cr: a Cairo context
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* @color: a #ClutterColor
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*
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* Utility function for setting the source color of @cr using
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* a #ClutterColor. This function is the equivalent of:
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*
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* |[
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* cairo_set_source_rgba (cr,
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* color->red / 255.0,
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* color->green / 255.0,
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* color->blue / 255.0,
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* color->alpha / 255.0);
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* ]|
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*
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* Since: 1.0
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*/
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void
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clutter_cairo_set_source_color (cairo_t *cr,
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const ClutterColor *color)
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{
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g_return_if_fail (cr != NULL);
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g_return_if_fail (color != NULL);
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if (color->alpha == 0xff)
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cairo_set_source_rgb (cr,
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color->red / 255.0,
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color->green / 255.0,
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color->blue / 255.0);
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else
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cairo_set_source_rgba (cr,
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color->red / 255.0,
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color->green / 255.0,
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color->blue / 255.0,
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color->alpha / 255.0);
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}
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/**
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* clutter_cairo_clear:
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* @cr: a Cairo context
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*
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* Utility function to clear a Cairo context.
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*
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* Since: 1.12
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*/
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void
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clutter_cairo_clear (cairo_t *cr)
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{
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cairo_save (cr);
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cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
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cairo_paint (cr);
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cairo_restore (cr);
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}
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