netsurf/desktop/plot_style.h
Vincent Sanders 86232d72a6 next round of plotter refactor
svn path=/trunk/netsurf/; revision=8512
2009-07-14 10:03:58 +00:00

102 lines
3.4 KiB
C

/*
* Copyright 2004 James Bursa <bursa@users.sourceforge.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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/>.
*/
/** \file
* Ploter styles.
*/
#ifndef _NETSURF_DESKTOP_PLOT_STYLE_H_
#define _NETSURF_DESKTOP_PLOT_STYLE_H_
/* html widget colours */
#define WIDGET_BASEC 0xd9d9d9
#define WIDGET_BLOBC 0x000000
/* Darken a colour by taking three quaters of each channels intensity */
#define darken_colour(c1) \
((((3 * (c1 >> 16)) >> 2) << 16) | \
(((3 * ((c1 >> 8) & 0xff)) >> 2) << 8) | \
(((3 * (c1 & 0xff)) >> 2) << 0))
/* Darken a colour by taking nine sixteenths of each channels intensity */
#define double_darken_colour(c1) \
((((9 * (c1 >> 16)) >> 4) << 16) | \
(((9 * ((c1 >> 8) & 0xff)) >> 4) << 8) | \
(((9 * (c1 & 0xff)) >> 4) << 0))
/* Lighten a colour by taking three quaters of each channels intensity
* and adding a full quater
*/
#define lighten_colour(c1) \
(((((3 * (c1 >> 16)) >> 2) + 64) << 16) | \
((((3 * ((c1 >> 8) & 0xff)) >> 2) + 64) << 8) | \
((((3 * (c1 & 0xff)) >> 2) + 64) << 0))
/* Lighten a colour by taking nine sixteenths of each channels intensity and
* adding a full intensity 7/16ths */
#define double_lighten_colour(c1) \
(((((9 * (c1 >> 16)) >> 4) + 112) << 16) | \
((((9 * ((c1 >> 8) & 0xff)) >> 4) + 112) << 8) | \
((((9 * (c1 & 0xff)) >> 4) + 112) << 0))
/* Blend two colours by taking half the intensity of each channel in the first
* colour and adding them to half the intensity of each channel in the second
* colour */
#define blend_colour(c0, c1) \
((((c0 >> 16) + (c1 >> 16)) >> 1) << 16) | \
(((((c0 >> 8) & 0xff) + ((c1 >> 8) & 0xff)) >> 1) << 8) | \
((((c0 & 0xff) + (c1 & 0xff)) >> 1) << 0)
typedef enum {
PLOT_OP_TYPE_NONE = 0, /**< No operation */
PLOT_OP_TYPE_SOLID, /**< Solid colour */
PLOT_OP_TYPE_DOT, /**< Doted plot */
PLOT_OP_TYPE_DASH, /**< dashed plot */
} plot_operation_type_t;
typedef struct {
plot_operation_type_t stroke_type;
int stroke_width;
colour stroke_colour;
plot_operation_type_t fill_type;
colour fill_colour;
} plot_style_t;
/* global fill styles */
extern plot_style_t *plot_style_fill_white;
extern plot_style_t *plot_style_fill_red;
extern plot_style_t *plot_style_fill_black;
/* global stroke styles */
extern plot_style_t *plot_style_stroke_red;
extern plot_style_t *plot_style_stroke_blue;
extern plot_style_t *plot_style_stroke_yellow;
/* other styles */
extern plot_style_t *plot_style_caret;
extern plot_style_t *plot_style_stroke_history;
extern plot_style_t *plot_style_fill_wbasec;
extern plot_style_t *plot_style_fill_darkwbasec;
extern plot_style_t *plot_style_fill_lightwbasec;
extern plot_style_t *plot_style_fill_wblobc;
extern plot_style_t *plot_style_stroke_wblobc;
extern plot_style_t *plot_style_stroke_darkwbasec;
extern plot_style_t *plot_style_stroke_lightwbasec;
#endif