mirror of
https://github.com/netsurf-browser/netsurf
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100 lines
3.3 KiB
C
100 lines
3.3 KiB
C
/*
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* Copyright 2004 James Bursa <bursa@users.sourceforge.net>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** \file
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* Ploter styles.
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*/
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#ifndef _NETSURF_DESKTOP_PLOT_STYLE_H_
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#define _NETSURF_DESKTOP_PLOT_STYLE_H_
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/* html widget colours */
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#define WIDGET_BASEC 0xd9d9d9
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#define WIDGET_BLOBC 0x000000
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/* Darken a colour by taking three quaters of each channels intensity */
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#define darken_colour(c1) \
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((((3 * (c1 >> 16)) >> 2) << 16) | \
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(((3 * ((c1 >> 8) & 0xff)) >> 2) << 8) | \
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(((3 * (c1 & 0xff)) >> 2) << 0))
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/* Darken a colour by taking nine sixteenths of each channels intensity */
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#define double_darken_colour(c1) \
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((((9 * (c1 >> 16)) >> 4) << 16) | \
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(((9 * ((c1 >> 8) & 0xff)) >> 4) << 8) | \
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(((9 * (c1 & 0xff)) >> 4) << 0))
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/* Lighten a colour by taking three quaters of each channels intensity
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* and adding a full quater
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*/
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#define lighten_colour(c1) \
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(((((3 * (c1 >> 16)) >> 2) + 64) << 16) | \
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((((3 * ((c1 >> 8) & 0xff)) >> 2) + 64) << 8) | \
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((((3 * (c1 & 0xff)) >> 2) + 64) << 0))
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/* Lighten a colour by taking nine sixteenths of each channels intensity and
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* adding a full intensity 7/16ths */
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#define double_lighten_colour(c1) \
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(((((9 * (c1 >> 16)) >> 4) + 112) << 16) | \
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((((9 * ((c1 >> 8) & 0xff)) >> 4) + 112) << 8) | \
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((((9 * (c1 & 0xff)) >> 4) + 112) << 0))
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/* Blend two colours by taking half the intensity of each channel in the first
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* colour and adding them to half the intensity of each channel in the second
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* colour */
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#define blend_colour(c0, c1) \
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((((c0 >> 16) + (c1 >> 16)) >> 1) << 16) | \
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(((((c0 >> 8) & 0xff) + ((c1 >> 8) & 0xff)) >> 1) << 8) | \
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((((c0 & 0xff) + (c1 & 0xff)) >> 1) << 0)
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typedef enum {
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PLOT_OP_TYPE_NONE = 0, /**< No operation */
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PLOT_OP_TYPE_SOLID, /**< Solid colour */
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PLOT_OP_TYPE_DOT, /**< Doted plot */
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PLOT_OP_TYPE_DASH, /**< dashed plot */
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} plot_operation_type_t;
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typedef struct {
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plot_operation_type_t stroke_type;
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int stroke_width;
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colour stroke_colour;
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plot_operation_type_t fill_type;
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colour fill_colour;
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} plot_style_t;
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/* global fill styles */
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extern plot_style_t *plot_style_fill_white;
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extern plot_style_t *plot_style_fill_red;
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extern plot_style_t *plot_style_fill_black;
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/* global stroke styles */
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extern plot_style_t *plot_style_stroke_red;
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extern plot_style_t *plot_style_stroke_blue;
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extern plot_style_t *plot_style_stroke_yellow;
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/* other styles */
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extern plot_style_t *plot_style_caret;
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extern plot_style_t *plot_style_stroke_history;
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extern plot_style_t *plot_style_fill_wbasec;
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extern plot_style_t *plot_style_fill_wblobc;
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extern plot_style_t *plot_style_stroke_wblobc;
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extern plot_style_t *plot_style_stroke_darkwbasec;
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extern plot_style_t *plot_style_stroke_lightwbasec;
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#endif
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