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[project @ 2002-04-24 17:38:36 by bursa]

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Added a simple table layout implementation.

svn path=/import/netsurf/; revision=6
This commit is contained in:
James Bursa 2002-04-24 17:38:36 +00:00
parent 91b9ffdbcb
commit 4f1bd18a3d
2 changed files with 87 additions and 4 deletions
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2
render/css_enums
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@ -5,7 +5,7 @@ css_background_repeat inherit repeat repeat_x repeat_y no_repeat
css_border_width inherit medium thin thick length
css_border_style inherit none dashed dotted double groove inset outset ridge solid
css_clear none both left right
css_display block inline none
css_display inline block list-item run-in compact marker table inline-table table-row-group table-header-group table-footer-group table-row table-column-group table-column table-cell table-caption none
css_float none left right
css_font_style normal italic oblique
css_font_variant normal smallcaps

89
render/render.c
View File

@ -1,5 +1,5 @@
/**
* $Id: render.c,v 1.3 2002/04/23 22:05:19 bursa Exp $
* $Id: render.c,v 1.4 2002/04/24 17:38:36 bursa Exp $
*/
#include <assert.h>
@ -16,7 +16,8 @@
*/
struct box {
enum { BOX_BLOCK, BOX_INLINE_CONTAINER, BOX_INLINE, BOX_FLOAT } type;
enum { BOX_BLOCK, BOX_INLINE_CONTAINER, BOX_INLINE,
BOX_TABLE, BOX_TABLE_ROW, BOX_TABLE_CELL, BOX_FLOAT } type;
xmlNode * node;
struct css_style * style;
unsigned long x, y, width, height;
@ -33,6 +34,7 @@ signed long len(struct css_length * length, unsigned long em);
void layout_block(struct box * box, unsigned long width);
unsigned long layout_block_children(struct box * box, unsigned long width);
void layout_inline_container(struct box * box, unsigned long width);
void layout_table(struct box * box, unsigned long width);
void render_plain_element(char * g, struct box * box, unsigned long x, unsigned long y);
void render_plain(struct box * box);
@ -111,8 +113,14 @@ unsigned long layout_block_children(struct box * box, unsigned long width)
c->y = y;
y += c->height + 1;
break;
case BOX_TABLE:
layout_table(c, width-4);
c->x = 2;
c->y = y;
y += c->height + 1;
break;
default:
die("block child not block or inline container");
die("block child not block, table, or inline container");
}
}
return y;
@ -136,6 +144,41 @@ void layout_inline_container(struct box * box, unsigned long width)
box->height = y;
}
void layout_table(struct box * box, unsigned long width)
{
/* TODO: do this properly */
unsigned int columns;
unsigned long cwidth;
unsigned long y = 1;
struct box * c;
struct box * r;
for (columns = 0, c = box->children->children; c != 0; c = c->next) {
assert(c->type == BOX_TABLE_CELL);
columns++;
}
cwidth = (width-8) / columns; /* just split into equal width columns */
for (r = box->children; r != 0; r = r->next) {
unsigned long height = 0;
unsigned int col;
for (col = 0, c = r->children; c != 0; col++, c = c->next) {
layout_block(c, cwidth);
c->x = 2 + col * cwidth;
c->y = 1;
if (c->height > height) height = c->height;
}
r->x = 2;
r->y = y;
r->width = width-4;
r->height = height + 2;
y += height + 3;
}
box->width = width;
box->height = y;
}
/******************************************************************************/
@ -161,6 +204,9 @@ void render_plain_element(char * g, struct box * box, unsigned long x, unsigned
}
switch (box->type) {
case BOX_TABLE:
case BOX_TABLE_ROW:
case BOX_TABLE_CELL:
case BOX_BLOCK: strncpy(g + 80 * (y + box->y) + x + box->x,
box->node->name, strlen(box->node->name));
break;
@ -269,6 +315,40 @@ struct box * xml_to_box(xmlNode * n, struct css_style * parent_style, struct css
inline_container = xml_to_box(c, style, stylesheet,
selector, depth + 1, box, inline_container);
break;
case CSS_DISPLAY_TABLE:
box = xcalloc(1, sizeof(struct box));
box->node = n;
box->type = BOX_TABLE;
box->style = style;
box_add_child(parent, box);
for (c = n->children; c != 0; c = c->next)
xml_to_box(c, style, stylesheet,
selector, depth + 1, box, 0);
inline_container = 0;
break;
case CSS_DISPLAY_TABLE_ROW:
box = xcalloc(1, sizeof(struct box));
box->node = n;
box->type = BOX_TABLE_ROW;
box->style = style;
box_add_child(parent, box);
for (c = n->children; c != 0; c = c->next)
xml_to_box(c, style, stylesheet,
selector, depth + 1, box, 0);
inline_container = 0;
break;
case CSS_DISPLAY_TABLE_CELL:
box = xcalloc(1, sizeof(struct box));
box->node = n;
box->type = BOX_TABLE_CELL;
box->style = style;
box_add_child(parent, box);
inline_container_c = 0;
for (c = n->children; c != 0; c = c->next)
inline_container_c = xml_to_box(c, style, stylesheet,
selector, depth + 1, box, inline_container_c);
inline_container = 0;
break;
case CSS_DISPLAY_NONE:
default:
}
@ -307,6 +387,9 @@ void box_dump(struct box * box, unsigned int depth)
case BOX_BLOCK: printf("BOX_BLOCK <%s>\n", box->node->name); break;
case BOX_INLINE_CONTAINER: printf("BOX_INLINE_CONTAINER\n"); break;
case BOX_INLINE: printf("BOX_INLINE '%s'\n", box->node->content); break;
case BOX_TABLE: printf("BOX_TABLE <%s>\n", box->node->name); break;
case BOX_TABLE_ROW: printf("BOX_TABLE_ROW <%s>\n", box->node->name); break;
case BOX_TABLE_CELL: printf("BOX_TABLE_CELL <%s>\n", box->node->name); break;
default: printf("Unknown box type\n");
}