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/*
* This file is part of LibCSS
* Licensed under the MIT License,
* http://www.opensource.org/licenses/mit-license.php
* Copyright 2009 John-Mark Bell <jmb@netsurf-browser.org>
*/
#include "bytecode/bytecode.h"
#include "bytecode/opcodes.h"
#include "select/propset.h"
#include "select/propget.h"
#include "utils/utils.h"
#include "select/properties/properties.h"
#include "select/properties/helpers.h"
css_error css__cascade_line_height(uint32_t opv, css_style *style,
css_select_state *state)
{
uint16_t value = CSS_LINE_HEIGHT_INHERIT;
css_fixed val = 0;
uint32_t unit = UNIT_PX;
if (hasFlagValue(opv) == false) {
switch (getValue(opv)) {
case LINE_HEIGHT_NUMBER:
value = CSS_LINE_HEIGHT_NUMBER;
val = *((css_fixed *) style->bytecode);
advance_bytecode(style, sizeof(val));
break;
case LINE_HEIGHT_DIMENSION:
value = CSS_LINE_HEIGHT_DIMENSION;
val = *((css_fixed *) style->bytecode);
advance_bytecode(style, sizeof(val));
unit = *((uint32_t *) style->bytecode);
advance_bytecode(style, sizeof(unit));
break;
case LINE_HEIGHT_NORMAL:
value = CSS_LINE_HEIGHT_NORMAL;
break;
}
}
unit = css__to_css_unit(unit);
if (css__outranks_existing(getOpcode(opv), isImportant(opv), state,
getFlagValue(opv))) {
return set_line_height(state->computed, value, val, unit);
}
return CSS_OK;
}
css_error css__set_line_height_from_hint(const css_hint *hint,
css_computed_style *style)
{
return set_line_height(style, hint->status,
hint->data.length.value, hint->data.length.unit);
}
css_error css__initial_line_height(css_select_state *state)
{
return set_line_height(state->computed, CSS_LINE_HEIGHT_NORMAL,
0, CSS_UNIT_PX);
}
css_error css__compose_line_height(const css_computed_style *parent,
const css_computed_style *child,
css_computed_style *result)
{
css_fixed length = 0;
css_unit unit = CSS_UNIT_PX;
uint8_t type = get_line_height(child, &length, &unit);
if (type == CSS_LINE_HEIGHT_INHERIT) {
type = get_line_height(parent, &length, &unit);
}
return set_line_height(result, type, length, unit);
}
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