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/*
* This file is part of LibCSS
* Licensed under the MIT License,
* http://www.opensource.org/licenses/mit-license.php
* Copyright 2011 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_opacity(uint32_t opv, css_style *style,
css_select_state *state)
{
uint16_t value = CSS_OPACITY_INHERIT;
css_fixed opacity = 0;
if (isInherit(opv) == false) {
value = CSS_Z_INDEX_SET;
opacity = *((css_fixed *) style->bytecode);
advance_bytecode(style, sizeof(opacity));
}
if (css__outranks_existing(getOpcode(opv), isImportant(opv), state,
isInherit(opv))) {
return set_opacity(state->computed, value, opacity);
}
return CSS_OK;
}
css_error css__set_opacity_from_hint(const css_hint *hint,
css_computed_style *style)
{
return set_opacity(style, hint->status, hint->data.fixed);
}
css_error css__initial_opacity(css_select_state *state)
{
return set_opacity(state->computed, CSS_OPACITY_SET, INTTOFIX(1));
}
css_error css__compose_opacity(const css_computed_style *parent,
const css_computed_style *child,
css_computed_style *result)
{
css_fixed opacity = 0;
uint8_t type = get_opacity(child, &opacity);
if (type == CSS_OPACITY_INHERIT) {
type = get_opacity(parent, &opacity);
}
return set_opacity(result, type, opacity);
}
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