94 lines
3.3 KiB
C
94 lines
3.3 KiB
C
/*
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This file is part of Telegram Desktop,
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an unofficial desktop messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014 John Preston, https://tdesktop.com
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*/
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#pragma once
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#include "gui/text.h"
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void initEmoji();
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EmojiPtr getEmoji(uint32 code);
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void findEmoji(const QChar *ch, const QChar *e, const QChar *&newEmojiEnd, uint32 &emojiCode);
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inline bool emojiEdge(const QChar *ch) {
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return true;
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switch (ch->unicode()) {
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case '.': case ',': case ':': case ';': case '!': case '?': case '#': case '@':
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case '(': case ')': case '[': case ']': case '{': case '}': case '<': case '>':
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case '+': case '=': case '-': case '_': case '*': case '/': case '\\': case '^': case '$':
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case '"': case '\'':
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case 8212: case 171: case 187: // --, <<, >>
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return true;
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}
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return false;
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}
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inline QString replaceEmojis(const QString &text) {
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QString result;
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LinkRanges lnkRanges = textParseLinks(text);
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int32 currentLink = 0, lnkCount = lnkRanges.size();
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const QChar *emojiStart = text.unicode(), *emojiEnd = emojiStart, *e = text.cend();
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bool canFindEmoji = true, consumePrevious = false;
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for (const QChar *ch = emojiEnd; ch != e;) {
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uint32 emojiCode = 0;
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const QChar *newEmojiEnd = 0;
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if (canFindEmoji) {
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findEmoji(ch, e, newEmojiEnd, emojiCode);
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}
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while (currentLink < lnkCount && ch >= lnkRanges[currentLink].from + lnkRanges[currentLink].len) {
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++currentLink;
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}
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if (emojiCode &&
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(ch == emojiStart || !ch->isLetterOrNumber() || !(ch - 1)->isLetterOrNumber()) &&
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(newEmojiEnd == e || !newEmojiEnd->isLetterOrNumber() || newEmojiEnd == emojiStart || !(newEmojiEnd - 1)->isLetterOrNumber()) &&
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(currentLink >= lnkCount || (ch < lnkRanges[currentLink].from && newEmojiEnd <= lnkRanges[currentLink].from) || (ch >= lnkRanges[currentLink].from + lnkRanges[currentLink].len && newEmojiEnd > lnkRanges[currentLink].from + lnkRanges[currentLink].len))
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) {
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// if (newEmojiEnd < e && newEmojiEnd->unicode() == ' ') ++newEmojiEnd;
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if (result.isEmpty()) result.reserve(text.size());
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if (ch > emojiEnd + (consumePrevious ? 1 : 0)) {
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result.append(emojiEnd, ch - emojiEnd - (consumePrevious ? 1 : 0));
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}
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if (emojiCode > 65535) {
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result.append(QChar((emojiCode >> 16) & 0xFFFF));
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}
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result.append(QChar(emojiCode & 0xFFFF));
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ch = emojiEnd = newEmojiEnd;
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canFindEmoji = true;
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consumePrevious = false;
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} else {
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if (false && (ch->unicode() == QChar::Space || ch->unicode() == QChar::Nbsp)) {
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canFindEmoji = true;
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consumePrevious = true;
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} else if (emojiEdge(ch)) {
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canFindEmoji = true;
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consumePrevious = false;
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} else {
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canFindEmoji = false;
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}
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++ch;
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}
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}
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if (result.isEmpty()) return text;
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if (emojiEnd < e) result.append(emojiEnd, e - emojiEnd);
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return result;
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}
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EmojiPack emojiPack(DBIEmojiTab tab);
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