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91 lines
2.2 KiB
C++
91 lines
2.2 KiB
C++
// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#pragma once
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#include "base/basic_types.h"
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#include <private/qfixed_p.h>
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namespace Ui::Text {
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class Word final {
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public:
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Word() = default;
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Word( // !newline
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uint16 position,
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bool unfinished,
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QFixed width,
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QFixed rbearing)
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: _position(position)
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, _rbearing_modulus(std::min(std::abs(rbearing.value()), 0x7FFF))
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, _rbearing_positive(rbearing.value() > 0 ? 1 : 0)
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, _unfinished(unfinished ? 1 : 0)
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, _qfixedwidth(width.value()) {
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}
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Word(uint16 position, int newlineBlockIndex)
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: _position(position)
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, _newline(1)
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, _newlineBlockIndex(newlineBlockIndex) {
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}
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[[nodiscard]] bool newline() const {
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return _newline != 0;
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}
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[[nodiscard]] int newlineBlockIndex() const {
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return _newline ? _newlineBlockIndex : 0;
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}
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[[nodiscard]] bool unfinished() const {
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return _unfinished != 0;
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}
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[[nodiscard]] uint16 position() const {
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return _position;
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}
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[[nodiscard]] QFixed f_rbearing() const {
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return QFixed::fromFixed(
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int(_rbearing_modulus) * (_rbearing_positive ? 1 : -1));
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}
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[[nodiscard]] QFixed f_width() const {
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return _newline ? 0 : QFixed::fromFixed(_qfixedwidth);
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}
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[[nodiscard]] QFixed f_rpadding() const {
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return _rpadding;
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}
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void add_rpadding(QFixed padding) {
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_rpadding += padding;
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}
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private:
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uint16 _position = 0;
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uint16 _rbearing_modulus : 13 = 0;
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uint16 _rbearing_positive : 1 = 0;
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uint16 _unfinished : 1 = 0;
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uint16 _newline : 1 = 0;
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// Right padding: spaces after the last content of the block (like a word).
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// This holds spaces after the end of the block, for example a text ending
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// with a space before a link has started. If text block has a leading spaces
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// (for example a text block after a link block) it is prepended with an empty
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// word that holds those spaces as a right padding.
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QFixed _rpadding;
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union {
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int _qfixedwidth;
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int _newlineBlockIndex;
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};
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};
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using Words = std::vector<Word>;
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[[nodiscard]] inline uint16 CountPosition(Words::const_iterator i) {
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return i->position();
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}
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} // namespace Ui::Text
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