Retro HyperText Rendering API

Files
file	retrohtr.h

Data Structures
struct	RETROHTR_RENDER_NODE
struct	RETROHTR_RENDER_TREE

Macros
#define	RETROHTR_TREE_FLAG_GUI_ACTIVE   1
#define	RETROHTR_NODE_FLAG_DIRTY   2
#define	RETROHTR_RENDER_NODES_INIT_SZ   10
#define	RETROHTR_TRACE_LVL   0
#define	RETROHTR_EDGE_UNKNOWN   0
#define	RETROHTR_EDGE_LEFT   1
#define	RETROHTR_EDGE_TOP   2
#define	RETROHTR_EDGE_INSIDE   4
#define	retrohtr_node(tree, idx)    (0 <= (ssize_t)idx ? &((tree)->nodes[idx]) : NULL)
#define	retrohtr_node_parent(tree, idx)
#define	retrohtr_tree_lock(tree)
#define	retrohtr_tree_unlock(tree)
#define	retrohtr_tree_is_locked(tree)   (NULL != (tree)->nodes)
#define	retrohtr_node_screen_x(tree, node_idx)    ((tree)->nodes[node_idx].x)
#define	retrohtr_node_screen_y(tree, node_idx)    ((tree)->nodes[node_idx].y)

Functions
MERROR_RETVAL	retrohtr_tree_create (struct MHTML_PARSER *parser, struct RETROHTR_RENDER_TREE *tree, size_t x, size_t y, size_t w, size_t h, ssize_t tag_idx, ssize_t node_idx, size_t d)
MERROR_RETVAL	retrohtr_apply_styles (struct MHTML_PARSER *parser, struct RETROHTR_RENDER_TREE *tree, struct MCSS_STYLE *parent_style, struct MCSS_STYLE *effect_style, ssize_t tag_idx)
	Create a style node that is a composite of a parent style and the styles applicable to the classes/IDs of a tag and its immediate styles. More...
MERROR_RETVAL	retrohtr_tree_size (struct MHTML_PARSER *parser, struct RETROHTR_RENDER_TREE *tree, struct MCSS_STYLE *prev_sibling_style, struct MCSS_STYLE *parent_style, ssize_t node_idx, size_t d)
MERROR_RETVAL	retrohtr_tree_pos (struct MHTML_PARSER *parser, struct RETROHTR_RENDER_TREE *tree, struct MCSS_STYLE *prev_sibling_style, struct MCSS_STYLE *parent_style, ssize_t node_idx, size_t d)
MERROR_RETVAL	retrohtr_tree_draw (struct MHTML_PARSER *parser, struct RETROHTR_RENDER_TREE *tree, ssize_t node_idx, size_t d)
retrogui_idc_t	retrohtr_tree_poll_ctls (struct RETROHTR_RENDER_TREE *tree, RETROFLAT_IN_KEY *input, struct RETROFLAT_INPUT *input_evt)
MERROR_RETVAL	retrohtr_tree_dump (struct RETROHTR_RENDER_TREE *tree, struct MHTML_PARSER *parser, ssize_t iter, size_t d)
void	retrohtr_tree_free (struct RETROHTR_RENDER_TREE *tree)
MERROR_RETVAL	retrohtr_tree_init (struct RETROHTR_RENDER_TREE *tree)

Variables
uint8_t	RETROHTR_RENDER_NODE::flags
ssize_t	RETROHTR_RENDER_NODE::x
ssize_t	RETROHTR_RENDER_NODE::y
size_t	RETROHTR_RENDER_NODE::w
size_t	RETROHTR_RENDER_NODE::h
size_t	RETROHTR_RENDER_NODE::m_l
size_t	RETROHTR_RENDER_NODE::m_r
size_t	RETROHTR_RENDER_NODE::m_t
size_t	RETROHTR_RENDER_NODE::m_b
uint8_t	RETROHTR_RENDER_NODE::pos
uint8_t	RETROHTR_RENDER_NODE::pos_flags
uint8_t	RETROHTR_RENDER_NODE::edge
RETROFLAT_COLOR	RETROHTR_RENDER_NODE::bg
RETROFLAT_COLOR	RETROHTR_RENDER_NODE::fg
MAUG_MHANDLE	RETROHTR_RENDER_NODE::font_h
ssize_t	RETROHTR_RENDER_NODE::tag
ssize_t	RETROHTR_RENDER_NODE::parent
	Index of container's render node in RETROHTR_RENDER_TREE.
ssize_t	RETROHTR_RENDER_NODE::first_child
	Index of first child's render node in RETROHTR_RENDER_TREE.
ssize_t	RETROHTR_RENDER_NODE::next_sibling
	Index of next sibling's render node in RETROHTR_RENDER_TREE.
struct RETROFLAT_BITMAP	RETROHTR_RENDER_NODE::bitmap
uint8_t	RETROHTR_RENDER_TREE::flags
MAUG_MHANDLE	RETROHTR_RENDER_TREE::nodes_h
struct RETROHTR_RENDER_NODE *	RETROHTR_RENDER_TREE::nodes
	Locked pointer to nodes when locked with retrohtr_tree_lock().
size_t	RETROHTR_RENDER_TREE::nodes_sz
	Current active number of nodes in RETROHTR_RENDER_NODE::nodes_h.
size_t	RETROHTR_RENDER_TREE::nodes_sz_max
	Current alloc'd number of nodes in RETROHTR_RENDER_NODE::nodes_h.
struct RETROGUI	RETROHTR_RENDER_TREE::gui

Detailed Description

Macro Definition Documentation

retrohtr_node_parent

#define retrohtr_node_parent	(		tree,
			idx
	)

Value:

   (0 <= idx && 0 <= (tree)->nodes[idx].parent ? \
      &((tree)->nodes[(tree)->nodes[idx].parent]) : NULL)

retrohtr_tree_lock

#define retrohtr_tree_lock

(

tree

)

Value:

   if( NULL == (tree)->nodes ) { \
      maug_mlock( (tree)->nodes_h, (tree)->nodes ); \
      maug_cleanup_if_null_alloc( struct RETROHTR_RENDER_NODE*, (tree)->nodes ); \
   }

retrohtr_tree_unlock

#define retrohtr_tree_unlock

(

tree

)

Value:

   if( NULL != (tree)->nodes ) { \
      maug_munlock( (tree)->nodes_h, (tree)->nodes ); \
   }

Function Documentation

retrohtr_apply_styles()

MERROR_RETVAL retrohtr_apply_styles	(	struct MHTML_PARSER *	parser,
		struct RETROHTR_RENDER_TREE *	tree,
		struct MCSS_STYLE *	parent_style,
		struct MCSS_STYLE *	effect_style,
		ssize_t	tag_idx
	)

Create a style node that is a composite of a parent style and the styles applicable to the classes/IDs of a tag and its immediate styles.

Parameters

tag_idx	Index of a tag in the parser tree to derive styles from.
parent_style	Locked pointer to an MCSS_STYLE for the parent node to build on.
effect_style	Locked pointer to an MCSS_STYLE to clear and replace with the combined style information from the parent and indexed tag.