plotter style interfaces, generic styles and style colour helpers. More...

#include <stdint.h>
#include <libwapcaplet/libwapcaplet.h>
#include "netsurf/types.h"

Include dependency graph for plot_style.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	plot_style_s
	Plot style for stroke/fill plotters. More...

struct	plot_font_style
	Font style for plotting. More...

Macros
#define	WIDGET_BASEC 0xd9d9d9
	light grey widget base colour More...

#define	WIDGET_BLOBC 0x000000
	black blob colour More...

#define	NS_TRANSPARENT 0x01000000
	Transparent colour value. More...

#define	PLOT_STYLE_RADIX (10)
	22:10 fixed point More...

#define	PLOT_STYLE_SCALE (1 << PLOT_STYLE_RADIX)
	Scaling factor for plot styles. More...

#define	plot_style_int_to_fixed(v) ((v) << PLOT_STYLE_RADIX)

#define	plot_style_fixed_to_int(v) ((v) >> PLOT_STYLE_RADIX)

#define	plot_style_fixed_to_float(v) (((float)v) / PLOT_STYLE_SCALE)

#define	plot_style_fixed_to_double(v) (((double)v) / PLOT_STYLE_SCALE)

#define	half_darken_colour(c1)

#define	darken_colour(c1)

#define	double_darken_colour(c1)

#define	half_lighten_colour(c1)

#define	lighten_colour(c1)

#define	double_lighten_colour(c1)

#define	blend_colour(c0, c1)

#define	colour_lightness(c0)
	Obtain the luminance of a colour according to ITU BT.601. More...

#define	colour_to_bw_nearest(c0) ((colour_lightness(c0) > (0xff / 2)) ? 0xffffff : 0x000000)

#define	colour_to_bw_furthest(c0) ((colour_lightness(c0) > (0xff / 2)) ? 0x000000 : 0xffffff)

#define	mix_colour(c0, c1, p)

#define	red_from_colour(c) ((c ) & 0xff)

#define	green_from_colour(c) ((c >> 8) & 0xff)

#define	blue_from_colour(c) ((c >> 16) & 0xff)

#define	colour_rb_swap(c)

Typedefs
typedef int32_t	plot_style_fixed

typedef struct plot_style_s	plot_style_t
	Plot style for stroke/fill plotters. More...

typedef struct plot_font_style	plot_font_style_t
	Font style for plotting. More...

Enumerations
enum	plot_operation_type_t { PLOT_OP_TYPE_NONE = 0 , PLOT_OP_TYPE_SOLID , PLOT_OP_TYPE_DOT , PLOT_OP_TYPE_DASH }
	Type of plot operation. More...

enum	plot_font_generic_family_t { 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 }
	Generic font family type. More...

enum	plot_font_flags_t { FONTF_NONE = 0 , FONTF_ITALIC = 1 , FONTF_OBLIQUE = 2 , FONTF_SMALLCAPS = 4 }
	Font plot flags. More...

enum	plot_colour_component { PLOT_COLOUR_COMPONENT_RED , PLOT_COLOUR_COMPONENT_GREEN , PLOT_COLOUR_COMPONENT_BLUE , PLOT_COLOUR_COMPONENT_ALPHA }
	Colour components. More...

Functions
static colour	colour_engorge_component (colour col, bool dark, enum plot_colour_component comp)
	Engorge a particular colour channel. More...

Variables
plot_style_t *	plot_style_fill_white

plot_style_t *	plot_style_fill_red

plot_style_t *	plot_style_fill_black

plot_style_t const *const	plot_style_content_edge

plot_style_t const *const	plot_style_padding_edge

plot_style_t const *const	plot_style_margin_edge

plot_style_t const *const	plot_style_broken_object

plot_font_style_t const *const	plot_fstyle_broken_object

plot_style_t *	plot_style_caret

plot_style_t *	plot_style_fill_wbasec

plot_style_t *	plot_style_fill_darkwbasec

plot_style_t *	plot_style_fill_lightwbasec

plot_style_t *	plot_style_fill_wblobc

plot_style_t *	plot_style_stroke_wblobc

plot_style_t *	plot_style_stroke_darkwbasec

plot_style_t *	plot_style_stroke_lightwbasec

plot_font_style_t const *const	plot_style_font

Detailed Description

plotter style interfaces, generic styles and style colour helpers.

Definition in file plot_style.h.

Macro Definition Documentation

◆ blend_colour

#define blend_colour	(	c0,
		c1
	)

Value:

(((((c0 & 0xff00ff) + (c1 & 0xff00ff)) >> 1) & 0xff00ff) | \

((((c0 & 0x00ff00) + (c1 & 0x00ff00)) >> 1) & 0x00ff00))

Definition at line 163 of file plot_style.h.

◆ blue_from_colour

#define blue_from_colour ( c ) ((c >> 16) & 0xff)

Definition at line 213 of file plot_style.h.

◆ colour_lightness

#define colour_lightness ( c0 )

Value:

        ((((c0 & 0x0000ff) *  77) >>  8) +                              \
         (((c0 & 0x00ff00) * 151) >> 16) +                              \
         (((c0 & 0xff0000) *  30) >> 24))

Obtain the luminance of a colour according to ITU BT.601.

ITU BT.601 formula is Y = 0.299 R + 0.587 G + 0.114 B actual values are Y = 76/255 R + 150/255 G + 29/255 B Y = 0.298 R + 0.588 G + 0.113 B

Note: if additional performance is required this could be altered to Y = 0.375 R + 0.5 G + 0.125 B with Y = (R << 1 + R + G << 2 + B) >> 3

Definition at line 181 of file plot_style.h.

◆ colour_rb_swap

#define colour_rb_swap ( c )

Value:

        (((0x000000ff & c) << 16) |                                     \
         ((0x0000ff00 & c)      ) |                                     \
         ((0x00ff0000 & c) >> 16))

Definition at line 217 of file plot_style.h.

◆ colour_to_bw_furthest

#define colour_to_bw_furthest ( c0 ) ((colour_lightness(c0) > (0xff / 2)) ? 0x000000 : 0xffffff)

Definition at line 193 of file plot_style.h.

◆ colour_to_bw_nearest

#define colour_to_bw_nearest ( c0 ) ((colour_lightness(c0) > (0xff / 2)) ? 0xffffff : 0x000000)

Definition at line 188 of file plot_style.h.

◆ darken_colour

#define darken_colour ( c1 )

Value:

((((3 * (c1 & 0xff00ff)) >> 2) & 0xff00ff) | \

(((3 * (c1 & 0x00ff00)) >> 2) & 0x00ff00))

Definition at line 133 of file plot_style.h.

◆ double_darken_colour

#define double_darken_colour ( c1 )

Value:

((((9 * (c1 & 0xff00ff)) >> 4) & 0xff00ff) | \

(((9 * (c1 & 0x00ff00)) >> 4) & 0x00ff00))

Definition at line 138 of file plot_style.h.

◆ double_lighten_colour

#define double_lighten_colour ( c1 )

Value:

(((((9 * (c1 & 0xff00ff)) >> 4) + 0x700070) & 0xff00ff) | \

((((9 * (c1 & 0x00ff00)) >> 4) + 0x007000) & 0x00ff00))

Definition at line 156 of file plot_style.h.

◆ green_from_colour

#define green_from_colour ( c ) ((c >> 8) & 0xff)

Definition at line 209 of file plot_style.h.

◆ half_darken_colour

#define half_darken_colour ( c1 )

Value:

((((7 * (c1 & 0xff00ff)) >> 3) & 0xff00ff) | \

(((7 * (c1 & 0x00ff00)) >> 3) & 0x00ff00))

Definition at line 128 of file plot_style.h.

◆ half_lighten_colour

#define half_lighten_colour ( c1 )

Value:

(((((7 * (c1 & 0xff00ff)) >> 3) + 0x200020) & 0xff00ff) | \

((((7 * (c1 & 0x00ff00)) >> 3) + 0x002000) & 0x00ff00))

Definition at line 144 of file plot_style.h.

◆ lighten_colour

#define lighten_colour ( c1 )

Value:

(((((3 * (c1 & 0xff00ff)) >> 2) + 0x400040) & 0xff00ff) | \

((((3 * (c1 & 0x00ff00)) >> 2) + 0x004000) & 0x00ff00))

Definition at line 150 of file plot_style.h.

◆ mix_colour

#define mix_colour	(	c0,
		c1,
		p
	)

Value:

        ((((((c1 & 0xff00ff) * (255 - p)) +                             \
            ((c0 & 0xff00ff) * (      p))   ) >> 8) & 0xff00ff) |       \
         (((((c1 & 0x00ff00) * (255 - p)) +                             \
            ((c0 & 0x00ff00) * (      p))   ) >> 8) & 0x00ff00))

Definition at line 198 of file plot_style.h.

◆ NS_TRANSPARENT

#define NS_TRANSPARENT 0x01000000

Transparent colour value.

Definition at line 39 of file plot_style.h.

◆ plot_style_fixed_to_double

#define plot_style_fixed_to_double ( v ) (((double)v) / PLOT_STYLE_SCALE)

Definition at line 60 of file plot_style.h.

◆ plot_style_fixed_to_float

#define plot_style_fixed_to_float ( v ) (((float)v) / PLOT_STYLE_SCALE)

Definition at line 57 of file plot_style.h.

◆ plot_style_fixed_to_int

#define plot_style_fixed_to_int ( v ) ((v) >> PLOT_STYLE_RADIX)

Definition at line 54 of file plot_style.h.

◆ plot_style_int_to_fixed

#define plot_style_int_to_fixed ( v ) ((v) << PLOT_STYLE_RADIX)

Definition at line 51 of file plot_style.h.

◆ PLOT_STYLE_RADIX

#define PLOT_STYLE_RADIX (10)

22:10 fixed point

Definition at line 42 of file plot_style.h.

◆ PLOT_STYLE_SCALE

#define PLOT_STYLE_SCALE (1 << PLOT_STYLE_RADIX)

Scaling factor for plot styles.

Definition at line 45 of file plot_style.h.

◆ red_from_colour

#define red_from_colour ( c ) ((c ) & 0xff)

Definition at line 205 of file plot_style.h.

◆ WIDGET_BASEC

#define WIDGET_BASEC 0xd9d9d9

light grey widget base colour

Definition at line 33 of file plot_style.h.

◆ WIDGET_BLOBC

#define WIDGET_BLOBC 0x000000

black blob colour

Definition at line 36 of file plot_style.h.

Typedef Documentation

◆ plot_font_style_t

typedef struct plot_font_style plot_font_style_t

Font style for plotting.

◆ plot_style_fixed

typedef int32_t plot_style_fixed

Definition at line 48 of file plot_style.h.

◆ plot_style_t

typedef struct plot_style_s plot_style_t

Plot style for stroke/fill plotters.

Enumeration Type Documentation

◆ plot_colour_component

enum plot_colour_component

Colour components.

Enumerator
PLOT_COLOUR_COMPONENT_RED
PLOT_COLOUR_COMPONENT_GREEN
PLOT_COLOUR_COMPONENT_BLUE
PLOT_COLOUR_COMPONENT_ALPHA

Definition at line 223 of file plot_style.h.

◆ plot_font_flags_t

enum plot_font_flags_t

Font plot flags.

Enumerator
FONTF_NONE
FONTF_ITALIC
FONTF_OBLIQUE
FONTF_SMALLCAPS

Definition at line 101 of file plot_style.h.

◆ plot_font_generic_family_t

enum plot_font_generic_family_t

Generic font family type.

Enumerator
PLOT_FONT_FAMILY_SANS_SERIF
PLOT_FONT_FAMILY_SERIF
PLOT_FONT_FAMILY_MONOSPACE
PLOT_FONT_FAMILY_CURSIVE
PLOT_FONT_FAMILY_FANTASY
PLOT_FONT_FAMILY_COUNT	Number of generic families.

Definition at line 88 of file plot_style.h.

◆ plot_operation_type_t

enum plot_operation_type_t

Type of plot operation.

Enumerator
PLOT_OP_TYPE_NONE	No operation.
PLOT_OP_TYPE_SOLID	Solid colour.
PLOT_OP_TYPE_DOT	Dotted plot.
PLOT_OP_TYPE_DASH	Dashed plot.

Definition at line 65 of file plot_style.h.

Function Documentation

◆ colour_engorge_component()

static colour colour_engorge_component	(	colour	col,
		bool	dark,
		enum plot_colour_component	comp
	)

inlinestatic

Engorge a particular colour channel.

Parameters

[in]	col	The colour to engorge a component of.
[in]	dark	Whether col is a dark colour.
[in]	comp	Colour component to engorge.

Definition at line 237 of file plot_style.h.

References darken_colour, double_darken_colour, double_lighten_colour, lighten_colour, PLOT_COLOUR_COMPONENT_ALPHA, PLOT_COLOUR_COMPONENT_BLUE, PLOT_COLOUR_COMPONENT_GREEN, and PLOT_COLOUR_COMPONENT_RED.

Referenced by nscolour__get().

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Variable Documentation

◆ plot_fstyle_broken_object

plot_font_style_t const* const plot_fstyle_broken_object

extern

Definition at line 90 of file plot_style.c.

Referenced by html_redraw_box().

◆ plot_style_broken_object

plot_style_t const* const plot_style_broken_object

extern

Definition at line 79 of file plot_style.c.

Referenced by html_redraw_box().

◆ plot_style_caret

plot_style_t* plot_style_caret

extern

Definition at line 98 of file plot_style.c.

◆ plot_style_content_edge

plot_style_t const* const plot_style_content_edge

extern

Definition at line 52 of file plot_style.c.

Referenced by html_redraw_box().

◆ plot_style_fill_black

plot_style_t* plot_style_fill_black

extern

Definition at line 38 of file plot_style.c.

Referenced by ro_gui_status_bar_redraw(), and textplain_redraw().

◆ plot_style_fill_darkwbasec

plot_style_t* plot_style_fill_darkwbasec

extern

Definition at line 116 of file plot_style.c.

Referenced by html_redraw_radio().

◆ plot_style_fill_lightwbasec

plot_style_t* plot_style_fill_lightwbasec

extern

Definition at line 123 of file plot_style.c.

Referenced by form_redraw_select_menu(), and html_redraw_radio().

◆ plot_style_fill_red

plot_style_t* plot_style_fill_red

extern

Definition at line 44 of file plot_style.c.

Referenced by ro_gui_progress_bar_redraw_window().

◆ plot_style_fill_wbasec

plot_style_t* plot_style_fill_wbasec

extern

Definition at line 109 of file plot_style.c.

Referenced by html_redraw_checkbox(), and html_redraw_radio().

◆ plot_style_fill_wblobc

plot_style_t* plot_style_fill_wblobc

extern

Definition at line 131 of file plot_style.c.

Referenced by html_redraw_checkbox(), and html_redraw_radio().

◆ plot_style_fill_white

plot_style_t* plot_style_fill_white

extern

Definition at line 32 of file plot_style.c.

Referenced by browser_window_redraw(), content_scaled_redraw(), text_draw(), text_redraw(), and textplain_redraw().

◆ plot_style_font

plot_font_style_t const* const plot_style_font

extern

Definition at line 165 of file plot_style.c.

Referenced by amiga_plugin_hack_redraw(), redraw_entry(), and svg_redraw_internal().

◆ plot_style_margin_edge

plot_style_t const* const plot_style_margin_edge

extern

Definition at line 68 of file plot_style.c.

Referenced by html_redraw_box().

◆ plot_style_padding_edge

plot_style_t const* const plot_style_padding_edge

extern

Definition at line 60 of file plot_style.c.

Referenced by html_redraw_box().

◆ plot_style_stroke_darkwbasec

plot_style_t* plot_style_stroke_darkwbasec

extern

Definition at line 146 of file plot_style.c.

Referenced by form_redraw_select_menu(), and html_redraw_checkbox().

◆ plot_style_stroke_lightwbasec

plot_style_t* plot_style_stroke_lightwbasec

extern

Definition at line 153 of file plot_style.c.

Referenced by html_redraw_checkbox().

◆ plot_style_stroke_wblobc

plot_style_t* plot_style_stroke_wblobc

extern

Definition at line 139 of file plot_style.c.

Referenced by html_redraw_checkbox().

Data Structures

Macros

Typedefs

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ blend_colour

◆ blue_from_colour

◆ colour_lightness

◆ colour_rb_swap

◆ colour_to_bw_furthest

◆ colour_to_bw_nearest

◆ darken_colour

◆ double_darken_colour

◆ double_lighten_colour

◆ green_from_colour

◆ half_darken_colour

◆ half_lighten_colour

◆ lighten_colour

◆ mix_colour

◆ NS_TRANSPARENT

◆ plot_style_fixed_to_double

◆ plot_style_fixed_to_float

◆ plot_style_fixed_to_int

◆ plot_style_int_to_fixed

◆ PLOT_STYLE_RADIX

◆ PLOT_STYLE_SCALE

◆ red_from_colour

◆ WIDGET_BASEC

◆ WIDGET_BLOBC

Typedef Documentation

◆ plot_font_style_t

◆ plot_style_fixed

◆ plot_style_t

Enumeration Type Documentation

◆ plot_colour_component

◆ plot_font_flags_t

◆ plot_font_generic_family_t

◆ plot_operation_type_t

Function Documentation

◆ colour_engorge_component()

Variable Documentation

◆ plot_fstyle_broken_object

◆ plot_style_broken_object

◆ plot_style_caret

◆ plot_style_content_edge

◆ plot_style_fill_black

◆ plot_style_fill_darkwbasec

◆ plot_style_fill_lightwbasec

◆ plot_style_fill_red

◆ plot_style_fill_wbasec

◆ plot_style_fill_wblobc

◆ plot_style_fill_white

◆ plot_style_font

◆ plot_style_margin_edge

◆ plot_style_padding_edge

◆ plot_style_stroke_darkwbasec

◆ plot_style_stroke_lightwbasec

◆ plot_style_stroke_wblobc