renderer.c File Reference

#include <ctype.h>
#include <stdarg.h>
#include <string.h>
#include "elinks.h"
#include "cache/cache.h"
#include "config/options.h"
#include "document/docdata.h"
#include "document/document.h"
#include "document/html/frames.h"
#include "document/html/iframes.h"
#include "document/html/parser.h"
#include "document/html/parser/parse.h"
#include "document/html/renderer.h"
#include "document/html/tables.h"
#include "document/options.h"
#include "document/refresh.h"
#include "document/renderer.h"
#include "intl/charsets.h"
#include "osdep/types.h"
#include "protocol/uri.h"
#include "session/session.h"
#include "terminal/color.h"
#include "terminal/draw.h"
#include "util/color.h"
#include "util/conv.h"
#include "util/error.h"
#include "util/hash.h"
#include "util/lists.h"
#include "util/memory.h"
#include "util/string.h"
#include "util/time.h"
#include "viewer/text/form.h"
#include "viewer/text/view.h"
#include "viewer/text/vs.h"
#include "document/html/internal.h"

Include dependency graph for renderer.c:

Data Structures
struct	table_cache_entry_key
struct	table_cache_entry

Macros
#define	MAX_TABLE_CACHE_ENTRIES   16384
#define	X(x_)
#define	Y(y_)
#define	SPACES_GRANULARITY   0x7F
#define	ALIGN_SPACES(x, o, n)
#define	LINE(y_)
#define	POS(x_, y_)
#define	LEN(y_)
#define	overlap_width(x)
#define	overlap(x)
#define	add_evhook(list_, type_, src_)
#define	assert_link_variable(old, new)

Typedefs
typedef unsigned char	link_state_T

Enumerations
enum	link_state { LINK_STATE_NONE , LINK_STATE_NEW , LINK_STATE_SAME }

Functions
static void	put_chars (struct html_context *, const char *, int)
static void	set_screen_char_color (struct screen_char *schar, color_T bgcolor, color_T fgcolor, color_flags_T color_flags, color_mode_T color_mode)
static int	realloc_line (struct html_context *html_context, struct document *document, int y, int length)
static int	realloc_spaces (struct part *part, int length)
static void	clear_hchars (struct html_context *html_context, int x, int y, int width, struct screen_char *a)
static struct screen_char *	get_frame_char (struct html_context *html_context, struct part *part, int x, int y, unsigned char data, color_T bgcolor, color_T fgcolor)
static struct screen_char *	get_format_screen_char (struct html_context *html_context, link_state_T link_state)
void	draw_frame_hchars (struct part *part, int x, int y, int width, unsigned char data, color_T bgcolor, color_T fgcolor, struct html_context *html_context)
void	draw_blockquote_chars (struct part *part, int y, struct html_context *html_context)
void	draw_frame_vchars (struct part *part, int x, int y, int height, unsigned char data, color_T bgcolor, color_T fgcolor, struct html_context *html_context)
void	expand_lines (struct html_context *html_context, struct part *part, int x, int y, int lines, color_T bgcolor)
static int	set_hline (struct html_context *html_context, const char *chars, int charslen, link_state_T link_state)
static void	move_links (struct html_context *html_context, int xf, int yf, int xt, int yt)
static void	copy_chars (struct html_context *html_context, int x, int y, int width, struct screen_char *d)
static void	move_chars (struct html_context *html_context, int x, int y, int nx, int ny)
static void	shift_chars (struct html_context *html_context, int y, int shift)
	Shift the line y to the right by shift character cells, and update document.comb_x and document.comb_y.
static void	del_chars (struct html_context *html_context, int x, int y)
static int	split_line_at (struct html_context *html_context, int width)
static int	split_line (struct html_context *html_context)
static void	insert_spaces_in_link (struct part *part, int x, int y, int new_spaces)
static void	justify_line (struct html_context *html_context, int y)
static void	align_line (struct html_context *html_context, int y, int last)
static void	init_link_event_hooks (struct html_context *html_context, struct link *link)
static struct link *	new_link (struct html_context *html_context, const char *name, int namelen)
static void	html_special_tag (struct document *document, char *t, int x, int y)
static void	put_chars_invisible (struct html_context *html_context, const char *chars, int charslen)
void	put_chars_conv (struct html_context *html_context, const char *chars, int charslen)
int	dec2qwerty (int num, char *link_sym, const char *key, int base)
int	qwerty2dec (const char *link_sym, const char *key, int base)
static void	put_link_number (struct html_context *html_context)
static void	init_link_state_info (char *link, char *target, char *image, struct el_form_control *form)
static void	done_link_state_info (void)
static void	process_link (struct html_context *html_context, link_state_T link_state, const char *chars, int charslen, int cells)
static link_state_T	get_link_state (struct html_context *html_context)
static int	html_has_non_space_chars (const char *chars, int charslen)
void	line_break (struct html_context *html_context)
static void	html_special_form (struct part *part, struct form *form)
static void	html_special_form_control (struct part *part, struct el_form_control **fcp)
static void	assert_forms_list_ok (struct form list *forms)
	Assert that each form in the list has a different form.form_num ... form.form_end range and that the ranges are contiguous and together cover all numbers from 0 to INT_MAX.
void	check_html_form_hierarchy (struct part *part)
static void	color_link_lines (struct html_context *html_context)
void *	html_special (struct html_context *html_context, html_special_type_T c,...)
void	free_table_cache (void)
struct part *	format_html_part (struct html_context *html_context, char *start, char *end, int align, int margin, int width, struct document *document, int x, int y, char *head, int link_num)
static void	subst_frame_chars (struct document *document)
void	render_html_document (struct cache_entry *cached, struct document *document, struct string *buffer)

Variables
static int	table_cache_entries
static struct hash *	table_cache
struct renderer_context	renderer_context

Macro Definition Documentation

add_evhook

#define add_evhook	(		list_,
			type_,
			src_ )

Value:

   do {                          \
      struct script_event_hook *evhook;            \
                              \
      if (!src_) break;                \
                              \
      evhook = (struct script_event_hook *)mem_calloc(1, sizeof(*evhook));       \
      if (!evhook) break;                 \
                              \
      evhook->type = type_;                  \
      evhook->src  = stracpy(src_);             \
      add_to_list(*(list_), evhook);               \
   } while (0)

ALIGN_SPACES

#define ALIGN_SPACES	(		x,
			o,
			n )

Value:

mem_align_alloc(x, o, n, SPACES_GRANULARITY)

assert_link_variable

#define assert_link_variable	(		old,
			new )

Value:

   assertm(!(old), "Old link value [%s]. New value [%s]", old, new);

LEN

#define LEN

(

y_

)

Value:

int_max(LINE(y_).length - part->box.x, 0)

LINE

#define LINE

(

y_

)

Value:

part->document->data[Y(y_)]

MAX_TABLE_CACHE_ENTRIES

#define MAX_TABLE_CACHE_ENTRIES   16384

overlap

#define overlap

(

x

)

Value:

int_max(overlap_width(x) - (x).rightmargin, 0)

overlap_width

#define overlap_width

(

x

)

Value:

   int_min((x).width, \
   html_context->options->document_width - TABLE_LINE_PADDING)

POS

#define POS	(		x_,
			y_ )

Value:

LINE(y_).ch.chars[X(x_)]

SPACES_GRANULARITY

#define SPACES_GRANULARITY   0x7F

X

#define X

(

x_

)

Value:

(part->box.x + (x_))

Y

#define Y

(

y_

)

Value:

(part->box.y + (y_))

Typedef Documentation

link_state_T

typedef unsigned char link_state_T

Enumeration Type Documentation

link_state

enum link_state

Enumerator
LINK_STATE_NONE
LINK_STATE_NEW
LINK_STATE_SAME

Function Documentation

align_line()

void align_line ( struct html_context * html_context, int y, int last )

static

assert_forms_list_ok()

void assert_forms_list_ok ( struct form list * forms )

static

Assert that each form in the list has a different form.form_num ... form.form_end range and that the ranges are contiguous and together cover all numbers from 0 to INT_MAX.

Alternatively, the whole list may be empty. This function can be called from a debugger, or automatically from some places.

This function may leave assert_failed = 1; the caller must use if_assert_failed.

check_html_form_hierarchy()

void check_html_form_hierarchy

(

struct part *

part

)

clear_hchars()

void clear_hchars ( struct html_context * html_context, int x, int y, int width, struct screen_char * a )

inlinestatic

color_link_lines()

void color_link_lines ( struct html_context * html_context )

inlinestatic

copy_chars()

void copy_chars ( struct html_context * html_context, int x, int y, int width, struct screen_char * d )

inlinestatic

dec2qwerty()

int dec2qwerty	(	int	num,
		char *	link_sym,
		const char *	key,
		int	base )

del_chars()

void del_chars ( struct html_context * html_context, int x, int y )

inlinestatic

done_link_state_info()

void done_link_state_info ( void )

inlinestatic

draw_blockquote_chars()

void draw_blockquote_chars	(	struct part *	part,
		int	y,
		struct html_context *	html_context )

draw_frame_hchars()

void draw_frame_hchars	(	struct part *	part,
		int	x,
		int	y,
		int	width,
		unsigned char	data,
		color_T	bgcolor,
		color_T	fgcolor,
		struct html_context *	html_context )

draw_frame_vchars()

void draw_frame_vchars	(	struct part *	part,
		int	x,
		int	y,
		int	height,
		unsigned char	data,
		color_T	bgcolor,
		color_T	fgcolor,
		struct html_context *	html_context )

expand_lines()

void expand_lines	(	struct html_context *	html_context,
		struct part *	part,
		int	x,
		int	y,
		int	lines,
		color_T	bgcolor )

format_html_part()

struct part * format_html_part	(	struct html_context *	html_context,
		char *	start,
		char *	end,
		int	align,
		int	margin,
		int	width,
		struct document *	document,
		int	x,
		int	y,
		char *	head,
		int	link_num )

free_table_cache()

void free_table_cache

(

void

)

get_format_screen_char()

struct screen_char * get_format_screen_char ( struct html_context * html_context, link_state_T link_state )

inlinestatic

get_frame_char()

struct screen_char * get_frame_char ( struct html_context * html_context, struct part * part, int x, int y, unsigned char data, color_T bgcolor, color_T fgcolor )

inlinestatic

get_link_state()

link_state_T get_link_state ( struct html_context * html_context )

inlinestatic

html_has_non_space_chars()

int html_has_non_space_chars ( const char * chars, int charslen )

inlinestatic

html_special()

void * html_special	(	struct html_context *	html_context,
		html_special_type_T	c,
			... )

html_special_form()

void html_special_form ( struct part * part, struct form * form )

static

html_special_form_control()

void html_special_form_control ( struct part * part, struct el_form_control ** fcp )

static

html_special_tag()

void html_special_tag ( struct document * document, char * t, int x, int y )

static

init_link_event_hooks()

void init_link_event_hooks ( struct html_context * html_context, struct link * link )

inlinestatic

init_link_state_info()

void init_link_state_info ( char * link, char * target, char * image, struct el_form_control * form )

inlinestatic

insert_spaces_in_link()

void insert_spaces_in_link ( struct part * part, int x, int y, int new_spaces )

static

justify_line()

void justify_line ( struct html_context * html_context, int y )

static

line_break()

void line_break

(

struct html_context *

html_context

)

move_chars()

void move_chars ( struct html_context * html_context, int x, int y, int nx, int ny )

inlinestatic

move_links()

void move_links ( struct html_context * html_context, int xf, int yf, int xt, int yt )

static

new_link()

struct link * new_link ( struct html_context * html_context, const char * name, int namelen )

static

process_link()

void process_link ( struct html_context * html_context, link_state_T link_state, const char * chars, int charslen, int cells )

inlinestatic

put_chars()

void put_chars ( struct html_context * html_context, const char * chars, int charslen )

static

put_chars_conv()

void put_chars_conv	(	struct html_context *	html_context,
		const char *	chars,
		int	charslen )

put_chars_invisible()

void put_chars_invisible ( struct html_context * html_context, const char * chars, int charslen )

static

put_link_number()

void put_link_number ( struct html_context * html_context )

inlinestatic

qwerty2dec()

int qwerty2dec	(	const char *	link_sym,
		const char *	key,
		int	base )

realloc_line()

int realloc_line ( struct html_context * html_context, struct document * document, int y, int length )

static

realloc_spaces()

int realloc_spaces ( struct part * part, int length )

inlinestatic

render_html_document()

void render_html_document	(	struct cache_entry *	cached,
		struct document *	document,
		struct string *	buffer )

set_hline()

int set_hline ( struct html_context * html_context, const char * chars, int charslen, link_state_T link_state )

inlinestatic

set_screen_char_color()

void set_screen_char_color ( struct screen_char * schar, color_T bgcolor, color_T fgcolor, color_flags_T color_flags, color_mode_T color_mode )

inlinestatic

shift_chars()

void shift_chars ( struct html_context * html_context, int y, int shift )

inlinestatic

Shift the line y to the right by shift character cells, and update document.comb_x and document.comb_y.

split_line()

int split_line ( struct html_context * html_context )

static

split_line_at()

int split_line_at ( struct html_context * html_context, int width )

inlinestatic

subst_frame_chars()

void subst_frame_chars ( struct document * document )

static

Variable Documentation

renderer_context

struct renderer_context renderer_context

table_cache

struct hash* table_cache

static

table_cache_entries

int table_cache_entries

static