mirror of https://github.com/GNOME/gimp.git
150 lines
4.2 KiB
C
150 lines
4.2 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
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*
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* gimpchecks.c
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* Copyright (C) 2004 Sven Neumann <sven@gimp.org>
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <glib-object.h>
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#include "gimpbasetypes.h"
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#include "gimpchecks.h"
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/**
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* SECTION: gimpchecks
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* @title: gimpchecks
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* @short_description: Constants and functions related to rendering
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* checkerboards.
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*
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* Constants and functions related to rendering checkerboards.
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**/
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/**
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* gimp_checks_get_shades:
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* @type: the checkerboard type
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* @light: (out) (optional): return location for the light shade
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* @dark: (out) (optional): return location for the dark shade
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*
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* Deprecated: use gimp_checks_get_colors() instead.
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*
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* Retrieves the actual shades of gray to use when drawing a
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* checkerboard for a certain #GimpCheckType.
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*
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* Since: 2.2
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**/
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void
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gimp_checks_get_shades (GimpCheckType type,
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guchar *light,
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guchar *dark)
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{
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const guchar shades[6][2] =
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{
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{ 204, 255 }, /* LIGHT_CHECKS */
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{ 102, 153 }, /* GRAY_CHECKS */
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{ 0, 51 }, /* DARK_CHECKS */
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{ 255, 255 }, /* WHITE_ONLY */
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{ 127, 127 }, /* GRAY_ONLY */
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{ 0, 0 } /* BLACK_ONLY */
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};
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type = MIN (type, 5);
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if (light)
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*light = shades[type][1];
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if (dark)
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*dark = shades[type][0];
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}
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/**
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* gimp_checks_get_colors:
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* @type: the checkerboard type
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* @color1: return location for the first color,
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* usually the light color
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* @color2: return location for the second color,
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* usually the dark color
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* @color1_custom: the first color to return if type is custom
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* @color2_custom: the second color to return if type is custom
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**/
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void
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gimp_checks_get_colors (GimpCheckType type,
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GimpRGB *color1,
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GimpRGB *color2,
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GimpRGB color1_custom,
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GimpRGB color2_custom)
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{
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if (color1)
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{
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switch (type)
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{
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case GIMP_CHECK_TYPE_LIGHT_CHECKS:
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*color1 = GIMP_CHECKS_LIGHT_COLOR_LIGHT;
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break;
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case GIMP_CHECK_TYPE_DARK_CHECKS:
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*color1 = GIMP_CHECKS_DARK_COLOR_LIGHT;
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break;
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case GIMP_CHECK_TYPE_WHITE_ONLY:
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*color1 = GIMP_CHECKS_WHITE_COLOR;
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break;
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case GIMP_CHECK_TYPE_GRAY_ONLY:
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*color1 = GIMP_CHECKS_GRAY_COLOR;
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break;
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case GIMP_CHECK_TYPE_BLACK_ONLY:
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*color1 = GIMP_CHECKS_BLACK_COLOR;
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break;
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case GIMP_CHECK_TYPE_CUSTOM_CHECKS:
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*color1 = color1_custom;
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break;
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default:
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*color1 = GIMP_CHECKS_GRAY_COLOR_LIGHT;
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break;
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}
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}
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if (color2)
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{
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switch (type)
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{
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case GIMP_CHECK_TYPE_LIGHT_CHECKS:
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*color2 = GIMP_CHECKS_LIGHT_COLOR_DARK;
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break;
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case GIMP_CHECK_TYPE_DARK_CHECKS:
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*color2 = GIMP_CHECKS_DARK_COLOR_DARK;
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break;
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case GIMP_CHECK_TYPE_WHITE_ONLY:
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*color2 = GIMP_CHECKS_WHITE_COLOR;
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break;
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case GIMP_CHECK_TYPE_GRAY_ONLY:
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*color2 = GIMP_CHECKS_GRAY_COLOR;
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break;
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case GIMP_CHECK_TYPE_BLACK_ONLY:
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*color2 = GIMP_CHECKS_BLACK_COLOR;
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break;
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case GIMP_CHECK_TYPE_CUSTOM_CHECKS:
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*color2 = color2_custom;
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break;
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default:
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*color2 = GIMP_CHECKS_GRAY_COLOR_DARK;
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break;
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}
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}
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}
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