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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3584 | sourcerer | 1 | /* |
| 2 | * This file is part of LibCSS |
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| 3 | * Licensed under the MIT License, |
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| 4 | * http://www.opensource.org/licenses/mit-license.php |
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| 5 | * Copyright 2011 John-Mark Bell |
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| 6 | */ |
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| 7 | |||
| 8 | #include "bytecode/bytecode.h" |
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| 9 | #include "bytecode/opcodes.h" |
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| 10 | #include "select/propset.h" |
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| 11 | #include "select/propget.h" |
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| 12 | #include "utils/utils.h" |
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| 13 | |||
| 14 | #include "select/properties/properties.h" |
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| 15 | #include "select/properties/helpers.h" |
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| 16 | |||
| 17 | css_error css__cascade_opacity(uint32_t opv, css_style *style, |
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| 18 | css_select_state *state) |
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| 19 | { |
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| 20 | uint16_t value = CSS_OPACITY_INHERIT; |
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| 21 | css_fixed opacity = 0; |
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| 22 | |||
| 23 | if (isInherit(opv) == false) { |
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| 24 | value = CSS_Z_INDEX_SET; |
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| 25 | |||
| 26 | opacity = *((css_fixed *) style->bytecode); |
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| 27 | advance_bytecode(style, sizeof(opacity)); |
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| 28 | } |
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| 29 | |||
| 30 | if (css__outranks_existing(getOpcode(opv), isImportant(opv), state, |
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| 31 | isInherit(opv))) { |
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| 32 | return set_opacity(state->computed, value, opacity); |
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| 33 | } |
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| 34 | |||
| 35 | return CSS_OK; |
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| 36 | } |
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| 37 | |||
| 38 | css_error css__set_opacity_from_hint(const css_hint *hint, |
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| 39 | css_computed_style *style) |
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| 40 | { |
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| 41 | return set_opacity(style, hint->status, hint->data.fixed); |
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| 42 | } |
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| 43 | |||
| 44 | css_error css__initial_opacity(css_select_state *state) |
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| 45 | { |
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| 46 | return set_opacity(state->computed, CSS_OPACITY_SET, INTTOFIX(1)); |
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| 47 | } |
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| 48 | |||
| 49 | css_error css__compose_opacity(const css_computed_style *parent, |
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| 50 | const css_computed_style *child, |
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| 51 | css_computed_style *result) |
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| 52 | { |
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| 53 | css_fixed opacity = 0; |
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| 54 | uint8_t type = get_opacity(child, &opacity); |
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| 55 | |||
| 56 | if (type == CSS_OPACITY_INHERIT) { |
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| 57 | type = get_opacity(parent, &opacity); |
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| 58 | } |
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| 59 | |||
| 60 | return set_opacity(result, type, opacity); |
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| 61 | } |
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| 62 |