Subversion Repositories Kolibri OS

/*

 * Copyright 2004 James Bursa 

 *

 * 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 .

 */

/** \file

 * Plotter styles.

 */

#ifndef _NETSURF_DESKTOP_PLOT_STYLE_H_

#define _NETSURF_DESKTOP_PLOT_STYLE_H_

#include 

/* html widget colours */

#define WIDGET_BASEC 0xd9d9d9

#define WIDGET_BLOBC 0x000000

/* Darken a colour by taking three quarters of each channel's intensity */

#define darken_colour(c1)				 		\

	((((3 * ((c1 >> 16) & 0xff)) >> 2) << 16) |			\

	 (((3 * ((c1 >>  8) & 0xff)) >> 2) <<  8) |	 		\

	 (((3 * ( c1        & 0xff)) >> 2) <<  0))

/* Darken a colour by taking nine sixteenths of each channel's intensity */

#define double_darken_colour(c1)			 		\

	((((9 * ((c1 >> 16) & 0xff)) >> 4) << 16) |			\

	 (((9 * ((c1 >>  8) & 0xff)) >> 4) <<  8) |	 		\

	 (((9 * ( c1        & 0xff)) >> 4) <<  0))

/* Lighten a colour by taking three quarters of each channel's intensity

 * and adding a full quarter

 */

#define lighten_colour(c1)						\

	(((((3 * ((c1 >> 16) & 0xff)) >> 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 channel's intensity and

 * adding a full intensity 7/16ths */

#define double_lighten_colour(c1)					\

	(((((9 * ((c1 >> 16) & 0xff)) >> 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) & 0xff) + ((c1 >> 16) & 0xff)) >> 1) << 16) |	\

	(((((c0 >>  8) & 0xff) + ((c1 >>  8) & 0xff)) >> 1) <<  8) |	\

	(((( c0        & 0xff) + ( c1        & 0xff)) >> 1) <<  0)

/* get a bitmap pixel (image/bitmap.h) into a plot colour */

#define pixel_to_colour(b)					\

	b[0] | (b[1] << 8) | (b[2] << 16) | (b[3] << 24)

/**

 * Colour type: XBGR

 */

typedef uint32_t colour;

/**

 * Magical transparent value

 */

#define NS_TRANSPARENT 0x01000000

/**

 * Type of plot operation

 */

typedef enum {

	PLOT_OP_TYPE_NONE = 0, /**< No operation */

	PLOT_OP_TYPE_SOLID, /**< Solid colour */

	PLOT_OP_TYPE_DOT, /**< Dotted plot */

	PLOT_OP_TYPE_DASH, /**< Dashed plot */

} plot_operation_type_t;

/**

 * Plot style for stroke/fill plotters

 */

typedef struct {

	plot_operation_type_t stroke_type; /**< Stroke plot type */

	int stroke_width; /**< Width of stroke, in pixels */

	colour stroke_colour; /**< Colour of stroke */

	plot_operation_type_t fill_type; /**< Fill plot type */

	colour fill_colour; /**< Colour of fill */

} plot_style_t;

/**

 * Generic font family type

 */

typedef enum {

	PLOT_FONT_FAMILY_SANS_SERIF = 0,

	PLOT_FONT_FAMILY_SERIF,

	PLOT_FONT_FAMILY_MONOSPACE,

	PLOT_FONT_FAMILY_CURSIVE,

	PLOT_FONT_FAMILY_FANTASY,

	PLOT_FONT_FAMILY_COUNT /**< Number of generic families */

} plot_font_generic_family_t;

/**

 * Font plot flags

 */

typedef unsigned long plot_font_flags_t;

#define FONTF_NONE 0

#define FONTF_ITALIC 1

#define FONTF_OBLIQUE 2

#define FONTF_SMALLCAPS 4

/**

 * Scaling factor for font sizes

 */

#define FONT_SIZE_SCALE 1024

/**

 * Font style for plotting

 */

typedef struct {

	plot_font_generic_family_t family; /**< Generic family to plot with */

	int size; /**< Font size, in points * FONT_SIZE_SCALE */

	int weight; /**< Font weight: value in range [100,900] as per CSS */

	plot_font_flags_t flags; /**< Font flags */

	colour background; /**< Background colour to blend to, if appropriate */

	colour foreground; /**< Colour of text */

} plot_font_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;

/* Box model debug outline styles for content, padding and margin edges */

extern plot_style_t const * const plot_style_content_edge;

extern plot_style_t const * const plot_style_padding_edge;

extern plot_style_t const * const plot_style_margin_edge;

/* Broken object replacement styles */

extern plot_style_t const * const plot_style_broken_object;

extern plot_font_style_t const * const plot_fstyle_broken_object;

/* 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;

/* Default font style */

extern plot_font_style_t const * const plot_style_font;

#ifndef HISTORY_COLOUR_SELECTED

#define HISTORY_COLOUR_SELECTED 0xFF0000

#endif

#ifndef HISTORY_COLOUR_FOREGROUND

#define HISTORY_COLOUR_FOREGROUND 0x333333

#endif

#ifndef HISTORY_COLOUR_BACKGROUND

#define HISTORY_COLOUR_BACKGROUND 0xFFFFFF

#endif

#ifndef HISTORY_COLOUR_LINES

#define HISTORY_COLOUR_LINES HISTORY_COLOUR_FOREGROUND

#endif

#endif