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/*
* Copyright (C) 2001 Havoc Pennington
* Copyright (C) 2016 Alberts Muktupāvels
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef META_GRADIENT_SPEC_PRIVATE_H
#define META_GRADIENT_SPEC_PRIVATE_H
#include <gtk/gtk.h>
G_BEGIN_DECLS
typedef struct _MetaAlphaGradientSpec MetaAlphaGradientSpec;
typedef struct _MetaGradientSpec MetaGradientSpec;
/**
* MetaGradientType:
* @META_GRADIENT_VERTICAL: Vertical gradient
* @META_GRADIENT_HORIZONTAL: Horizontal gradient
* @META_GRADIENT_DIAGONAL: Diagonal gradient
* @META_GRADIENT_LAST: Marks the end of the #MetaGradientType enumeration
*
*/
typedef enum
{
META_GRADIENT_VERTICAL,
META_GRADIENT_HORIZONTAL,
META_GRADIENT_DIAGONAL,
META_GRADIENT_LAST
} MetaGradientType;
G_GNUC_INTERNAL
MetaGradientSpec *meta_gradient_spec_new (MetaGradientType type);
G_GNUC_INTERNAL
void meta_gradient_spec_free (MetaGradientSpec *spec);
G_GNUC_INTERNAL
void meta_gradient_spec_add_color_spec (MetaGradientSpec *spec,
MetaColorSpec *color_spec);
G_GNUC_INTERNAL
void meta_gradient_spec_render (const MetaGradientSpec *spec,
const MetaAlphaGradientSpec *alpha_spec,
cairo_t *cr,
GtkStyleContext *context,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
G_GNUC_INTERNAL
gboolean meta_gradient_spec_validate (MetaGradientSpec *spec,
GError **error);
G_GNUC_INTERNAL
MetaAlphaGradientSpec *meta_alpha_gradient_spec_new (MetaGradientType type,
gint n_alphas);
G_GNUC_INTERNAL
void meta_alpha_gradient_spec_free (MetaAlphaGradientSpec *spec);
G_GNUC_INTERNAL
void meta_alpha_gradient_spec_add_alpha (MetaAlphaGradientSpec *spec,
gint n_alpha,
gdouble alpha);
G_GNUC_INTERNAL
guchar meta_alpha_gradient_spec_get_alpha (MetaAlphaGradientSpec *spec,
gint n_alpha);
G_GNUC_INTERNAL
void meta_alpha_gradient_spec_render (MetaAlphaGradientSpec *spec,
GdkRGBA color,
cairo_t *cr,
gdouble x,
gdouble y,
gdouble width,
gdouble height);
G_GNUC_INTERNAL
cairo_pattern_t *meta_alpha_gradient_spec_get_mask (const MetaAlphaGradientSpec *spec);
G_END_DECLS
#endif
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