742 lines
18 KiB
C++
742 lines
18 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram 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://desktop.telegram.org
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*/
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#pragma once
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// text preprocess
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QString textClean(const QString &text);
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QString textRichPrepare(const QString &text);
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QString textOneLine(const QString &text, bool trim = true, bool rich = false);
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QString textAccentFold(const QString &text);
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QString textSearchKey(const QString &text);
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bool textSplit(QString &sendingText, QString &leftText, int32 limit);
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enum {
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TextParseMultiline = 0x001,
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TextParseLinks = 0x002,
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TextParseRichText = 0x004,
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TextParseMentions = 0x008,
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TextParseHashtags = 0x010,
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TextParseBotCommands = 0x020,
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TextTwitterMentions = 0x040,
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TextTwitterHashtags = 0x080,
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TextInstagramMentions = 0x100,
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TextInstagramHashtags = 0x200,
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};
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enum LinkInTextType {
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LinkInTextUrl,
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LinkInTextCustomUrl,
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LinkInTextEmail,
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LinkInTextHashtag,
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LinkInTextMention,
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LinkInTextBotCommand,
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};
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struct LinkInText {
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LinkInText(LinkInTextType type, int32 offset, int32 length, const QString &text = QString()) : type(type), offset(offset), length(length), text(text) {
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}
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LinkInTextType type;
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int32 offset, length;
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QString text;
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};
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typedef QList<LinkInText> LinksInText;
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inline LinksInText linksFromMTP(const QVector<MTPMessageEntity> &entities) {
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LinksInText result;
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if (!entities.isEmpty()) {
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result.reserve(entities.size());
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for (int32 i = 0, l = entities.size(); i != l; ++i) {
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const MTPMessageEntity &e(entities.at(i));
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switch (e.type()) {
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case mtpc_messageEntityUrl: { const MTPDmessageEntityUrl &d(e.c_messageEntityUrl()); result.push_back(LinkInText(LinkInTextUrl, d.voffset.v, d.vlength.v)); } break;
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case mtpc_messageEntityTextUrl: { const MTPDmessageEntityTextUrl &d(e.c_messageEntityTextUrl()); result.push_back(LinkInText(LinkInTextCustomUrl, d.voffset.v, d.vlength.v, textClean(qs(d.vurl)))); } break;
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case mtpc_messageEntityEmail: { const MTPDmessageEntityEmail &d(e.c_messageEntityEmail()); result.push_back(LinkInText(LinkInTextEmail, d.voffset.v, d.vlength.v)); } break;
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case mtpc_messageEntityHashtag: { const MTPDmessageEntityHashtag &d(e.c_messageEntityHashtag()); result.push_back(LinkInText(LinkInTextHashtag, d.voffset.v, d.vlength.v)); } break;
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case mtpc_messageEntityMention: { const MTPDmessageEntityMention &d(e.c_messageEntityMention()); result.push_back(LinkInText(LinkInTextMention, d.voffset.v, d.vlength.v)); } break;
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case mtpc_messageEntityBotCommand: { const MTPDmessageEntityBotCommand &d(e.c_messageEntityBotCommand()); result.push_back(LinkInText(LinkInTextBotCommand, d.voffset.v, d.vlength.v)); } break;
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}
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}
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}
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return result;
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}
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inline MTPVector<MTPMessageEntity> linksToMTP(const LinksInText &links) {
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MTPVector<MTPMessageEntity> result(MTP_vector<MTPMessageEntity>(0));
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QVector<MTPMessageEntity> &v(result._vector().v);
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for (int32 i = 0, s = links.size(); i != s; ++i) {
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const LinkInText &l(links.at(i));
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switch (l.type) {
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case LinkInTextUrl: v.push_back(MTP_messageEntityUrl(MTP_int(l.offset), MTP_int(l.length))); break;
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case LinkInTextCustomUrl: v.push_back(MTP_messageEntityTextUrl(MTP_int(l.offset), MTP_int(l.length), MTP_string(l.text))); break;
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case LinkInTextEmail: v.push_back(MTP_messageEntityEmail(MTP_int(l.offset), MTP_int(l.length))); break;
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case LinkInTextHashtag: v.push_back(MTP_messageEntityHashtag(MTP_int(l.offset), MTP_int(l.length))); break;
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case LinkInTextMention: v.push_back(MTP_messageEntityMention(MTP_int(l.offset), MTP_int(l.length))); break;
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case LinkInTextBotCommand: v.push_back(MTP_messageEntityBotCommand(MTP_int(l.offset), MTP_int(l.length))); break;
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}
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}
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return result;
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}
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LinksInText textParseLinks(const QString &text, int32 flags, bool rich = false);
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#include "gui/emoji_config.h"
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void emojiDraw(QPainter &p, EmojiPtr e, int x, int y);
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#include "../../../QtStatic/qtbase/src/gui/text/qfontengine_p.h"
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enum TextBlockType {
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TextBlockNewline = 0x01,
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TextBlockText = 0x02,
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TextBlockEmoji = 0x03,
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TextBlockSkip = 0x04,
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};
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enum TextBlockFlags {
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TextBlockBold = 0x01,
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TextBlockItalic = 0x02,
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TextBlockUnderline = 0x04,
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};
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class ITextBlock {
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public:
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ITextBlock(const style::font &font, const QString &str, uint16 from, uint16 length, uchar flags, const style::color &color, uint16 lnkIndex) : _from(from), _flags((flags & 0xFF) | ((lnkIndex & 0xFFFF) << 12))/*, _color(color)*/, _lpadding(0) {
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if (length) {
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if (str.at(_from + length - 1).unicode() == QChar::Space) {
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_rpadding = font->spacew;
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}
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if (length > 1 && str.at(0).unicode() == QChar::Space) {
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_lpadding = font->spacew;
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}
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}
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}
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uint16 from() const {
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return _from;
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}
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int32 width() const {
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return _width.toInt();
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}
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int32 lpadding() const {
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return _lpadding.toInt();
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}
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int32 rpadding() const {
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return _rpadding.toInt();
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}
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QFixed f_width() const {
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return _width;
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}
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QFixed f_lpadding() const {
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return _lpadding;
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}
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QFixed f_rpadding() const {
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return _rpadding;
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}
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uint16 lnkIndex() const {
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return (_flags >> 12) & 0xFFFF;
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}
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void setLnkIndex(uint16 lnkIndex) {
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_flags = (_flags & ~(0xFFFF << 12)) | (lnkIndex << 12);
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}
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TextBlockType type() const {
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return TextBlockType((_flags >> 8) & 0x0F);
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}
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int32 flags() const {
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return (_flags & 0xFF);
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}
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const style::color &color() const {
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static style::color tmp;
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return tmp;//_color;
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}
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virtual ITextBlock *clone() const = 0;
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virtual ~ITextBlock() {
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}
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protected:
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uint16 _from;
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uint32 _flags; // 4 bits empty, 16 bits lnkIndex, 4 bits type, 8 bits flags
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QFixed _width, _lpadding, _rpadding;
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};
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class NewlineBlock : public ITextBlock {
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public:
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Qt::LayoutDirection nextDirection() const {
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return _nextDir;
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}
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ITextBlock *clone() const {
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return new NewlineBlock(*this);
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}
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private:
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NewlineBlock(const style::font &font, const QString &str, uint16 from, uint16 length) : ITextBlock(font, str, from, length, 0, st::transparent, 0), _nextDir(Qt::LayoutDirectionAuto) {
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_flags |= ((TextBlockNewline & 0x0F) << 8);
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}
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Qt::LayoutDirection _nextDir;
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friend class Text;
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friend class TextParser;
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friend class TextPainter;
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};
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struct TextWord {
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TextWord() {
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}
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TextWord(uint16 from, QFixed width, QFixed rbearing, QFixed rpadding = 0) : from(from),
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_rbearing(rbearing.value() > 0x7FFF ? 0x7FFF : (rbearing.value() < -0x7FFF ? -0x7FFF : rbearing.value())), width(width), rpadding(rpadding) {
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}
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QFixed f_rbearing() const {
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return QFixed::fromFixed(_rbearing);
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}
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uint16 from;
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int16 _rbearing;
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QFixed width, rpadding;
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};
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class TextBlock : public ITextBlock {
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public:
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QFixed f_rbearing() const {
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return _words.isEmpty() ? 0 : _words.back().f_rbearing();
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}
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ITextBlock *clone() const {
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return new TextBlock(*this);
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}
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private:
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TextBlock(const style::font &font, const QString &str, QFixed minResizeWidth, uint16 from, uint16 length, uchar flags, const style::color &color, uint16 lnkIndex);
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typedef QVector<TextWord> TextWords;
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TextWords _words;
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friend class Text;
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friend class TextParser;
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friend class BlockParser;
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friend class TextPainter;
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};
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class EmojiBlock : public ITextBlock {
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public:
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ITextBlock *clone() const {
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return new EmojiBlock(*this);
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}
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private:
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EmojiBlock(const style::font &font, const QString &str, uint16 from, uint16 length, uchar flags, const style::color &color, uint16 lnkIndex, const EmojiData *emoji);
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const EmojiData *emoji;
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friend class Text;
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friend class TextParser;
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friend class TextPainter;
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};
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class SkipBlock : public ITextBlock {
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public:
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int32 height() const {
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return _height;
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}
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ITextBlock *clone() const {
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return new SkipBlock(*this);
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}
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private:
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SkipBlock(const style::font &font, const QString &str, uint16 from, int32 w, int32 h, uint16 lnkIndex);
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int32 _height;
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friend class Text;
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friend class TextParser;
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friend class TextPainter;
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};
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class ITextLink {
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public:
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virtual void onClick(Qt::MouseButton) const = 0;
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virtual const QString &text() const {
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static const QString _tmp;
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return _tmp;
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}
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virtual const QString &readable() const {
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static const QString _tmp;
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return _tmp;
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}
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virtual bool fullDisplayed() const {
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return true;
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}
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virtual QString encoded() const {
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return QString();
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}
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virtual const QLatin1String &type() const = 0;
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virtual ~ITextLink() {
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}
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};
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#define TEXT_LINK_CLASS(ClassName) public: \
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const QLatin1String &type() const { \
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static const QLatin1String _type(qstr(#ClassName)); \
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return _type; \
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}
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typedef QSharedPointer<ITextLink> TextLinkPtr;
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class TextLink : public ITextLink {
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TEXT_LINK_CLASS(TextLink)
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public:
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TextLink(const QString &url, bool fullDisplayed = true) : _url(url), _fullDisplayed(fullDisplayed) {
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QUrl u(_url), good(u.isValid() ? u.toEncoded() : QString());
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_readable = good.isValid() ? good.toDisplayString() : _url;
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}
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const QString &text() const {
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return _url;
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}
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void onClick(Qt::MouseButton button) const;
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const QString &readable() const {
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return _readable;
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}
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bool fullDisplayed() const {
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return _fullDisplayed;
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}
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QString encoded() const {
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QUrl u(_url), good(u.isValid() ? u.toEncoded() : QString());
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QString result(good.isValid() ? QString::fromUtf8(good.toEncoded()) : _url);
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if (!QRegularExpression(qsl("^[a-zA-Z]+://")).match(result).hasMatch()) { // no protocol
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return qsl("http://") + result;
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}
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return result;
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}
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private:
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QString _url, _readable;
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bool _fullDisplayed;
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};
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class EmailLink : public ITextLink {
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TEXT_LINK_CLASS(EmailLink)
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public:
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EmailLink(const QString &email) : _email(email) {
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}
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const QString &text() const {
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return _email;
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}
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void onClick(Qt::MouseButton button) const;
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const QString &readable() const {
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return _email;
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}
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QString encoded() const {
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return _email;
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}
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private:
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QString _email;
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};
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class MentionLink : public ITextLink {
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TEXT_LINK_CLASS(MentionLink)
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public:
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MentionLink(const QString &tag) : _tag(tag) {
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}
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const QString &text() const {
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return _tag;
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}
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void onClick(Qt::MouseButton button) const;
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const QString &readable() const {
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return _tag;
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}
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QString encoded() const {
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return _tag;
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}
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private:
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QString _tag;
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};
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class HashtagLink : public ITextLink {
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TEXT_LINK_CLASS(HashtagLink)
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public:
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HashtagLink(const QString &tag) : _tag(tag) {
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}
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const QString &text() const {
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return _tag;
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}
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void onClick(Qt::MouseButton button) const;
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const QString &readable() const {
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return _tag;
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}
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QString encoded() const {
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return _tag;
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}
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private:
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QString _tag;
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};
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class BotCommandLink : public ITextLink {
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TEXT_LINK_CLASS(BotCommandLink)
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public:
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BotCommandLink(const QString &cmd) : _cmd(cmd) {
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}
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const QString &text() const {
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return _cmd;
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}
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void onClick(Qt::MouseButton button) const;
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const QString &readable() const {
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return _cmd;
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}
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QString encoded() const {
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return _cmd;
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}
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private:
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QString _cmd;
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};
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static const QChar TextCommand(0x0010);
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enum TextCommands {
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TextCommandBold = 0x01,
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TextCommandNoBold = 0x02,
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TextCommandItalic = 0x03,
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TextCommandNoItalic = 0x04,
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TextCommandUnderline = 0x05,
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TextCommandNoUnderline = 0x06,
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TextCommandLinkIndex = 0x07, // 0 - NoLink
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TextCommandLinkText = 0x08,
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TextCommandColor = 0x09,
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TextCommandNoColor = 0x0A,
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TextCommandSkipBlock = 0x0B,
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TextCommandLangTag = 0x20,
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};
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struct TextParseOptions {
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int32 flags;
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int32 maxw;
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int32 maxh;
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Qt::LayoutDirection dir;
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};
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extern const TextParseOptions _defaultOptions, _textPlainOptions;
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enum TextSelectType {
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TextSelectLetters = 0x01,
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TextSelectWords = 0x02,
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TextSelectParagraphs = 0x03,
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};
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typedef QPair<QString, QString> TextCustomTag; // open str and close str
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typedef QMap<QChar, TextCustomTag> TextCustomTagsMap;
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class Text {
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public:
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Text(int32 minResizeWidth = QFIXED_MAX);
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Text(style::font font, const QString &text, const TextParseOptions &options = _defaultOptions, int32 minResizeWidth = QFIXED_MAX, bool richText = false);
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Text(const Text &other);
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Text &operator=(const Text &other);
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int32 countHeight(int32 width) const;
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void setText(style::font font, const QString &text, const TextParseOptions &options = _defaultOptions);
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void setRichText(style::font font, const QString &text, TextParseOptions options = _defaultOptions, const TextCustomTagsMap &custom = TextCustomTagsMap());
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void setMarkedText(style::font font, const QString &text, const LinksInText &links, const TextParseOptions &options = _defaultOptions);
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void setLink(uint16 lnkIndex, const TextLinkPtr &lnk);
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bool hasLinks() const;
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bool hasSkipBlock() const {
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return _blocks.isEmpty() ? false : _blocks.back()->type() == TextBlockSkip;
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}
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void setSkipBlock(int32 width, int32 height);
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void removeSkipBlock();
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LinksInText calcLinksInText() const;
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int32 maxWidth() const {
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return _maxWidth.ceil().toInt();
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}
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int32 minHeight() const {
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return _minHeight;
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}
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void replaceFont(style::font f); // does not recount anything, use at your own risk!
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void draw(QPainter &p, int32 left, int32 top, int32 width, style::align align = style::al_left, int32 yFrom = 0, int32 yTo = -1, uint16 selectedFrom = 0, uint16 selectedTo = 0) const;
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void drawElided(QPainter &p, int32 left, int32 top, int32 width, int32 lines = 1, style::align align = style::al_left, int32 yFrom = 0, int32 yTo = -1, int32 removeFromEnd = 0) const;
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const TextLinkPtr &link(int32 x, int32 y, int32 width, style::align align = style::al_left) const;
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void getState(TextLinkPtr &lnk, bool &inText, int32 x, int32 y, int32 width, style::align align = style::al_left) const;
|
|
void getSymbol(uint16 &symbol, bool &after, bool &upon, int32 x, int32 y, int32 width, style::align align = style::al_left) const;
|
|
uint32 adjustSelection(uint16 from, uint16 to, TextSelectType selectType) const;
|
|
|
|
bool isEmpty() const {
|
|
return _text.isEmpty();
|
|
}
|
|
bool isNull() const {
|
|
return !_font;
|
|
}
|
|
QString original(uint16 selectedFrom = 0, uint16 selectedTo = 0xFFFF, bool expandLinks = true) const;
|
|
|
|
bool lastDots(int32 dots, int32 maxdots = 3) { // hack for typing animation
|
|
if (_text.size() < maxdots) return false;
|
|
|
|
int32 nowDots = 0, from = _text.size() - maxdots, to = _text.size();
|
|
for (int32 i = from; i < to; ++i) {
|
|
if (_text.at(i) == QChar('.')) {
|
|
++nowDots;
|
|
}
|
|
}
|
|
if (nowDots == dots) return false;
|
|
for (int32 j = from; j < from + dots; ++j) {
|
|
_text[j] = QChar('.');
|
|
}
|
|
for (int32 j = from + dots; j < to; ++j) {
|
|
_text[j] = QChar(' ');
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void clean();
|
|
~Text() {
|
|
clean();
|
|
}
|
|
|
|
private:
|
|
|
|
void recountNaturalSize(bool initial, Qt::LayoutDirection optionsDir = Qt::LayoutDirectionAuto);
|
|
|
|
QFixed _minResizeWidth, _maxWidth;
|
|
int32 _minHeight;
|
|
|
|
QString _text;
|
|
style::font _font;
|
|
|
|
typedef QVector<ITextBlock*> TextBlocks;
|
|
TextBlocks _blocks;
|
|
|
|
typedef QVector<TextLinkPtr> TextLinks;
|
|
TextLinks _links;
|
|
|
|
Qt::LayoutDirection _startDir;
|
|
|
|
friend class TextParser;
|
|
friend class TextPainter;
|
|
|
|
};
|
|
|
|
void initLinkSets();
|
|
const QSet<int32> &validProtocols();
|
|
const QSet<int32> &validTopDomains();
|
|
const QRegularExpression &reDomain();
|
|
const QRegularExpression &reMailName();
|
|
const QRegularExpression &reHashtag();
|
|
const QRegularExpression &reBotCommand();
|
|
|
|
// text style
|
|
const style::textStyle *textstyleCurrent();
|
|
void textstyleSet(const style::textStyle *style);
|
|
|
|
inline void textstyleRestore() {
|
|
textstyleSet(0);
|
|
}
|
|
|
|
// textlnk
|
|
void textlnkOver(const TextLinkPtr &lnk);
|
|
const TextLinkPtr &textlnkOver();
|
|
|
|
void textlnkDown(const TextLinkPtr &lnk);
|
|
const TextLinkPtr &textlnkDown();
|
|
|
|
// textcmd
|
|
QString textcmdSkipBlock(ushort w, ushort h);
|
|
QString textcmdStartLink(ushort lnkIndex);
|
|
QString textcmdStartLink(const QString &url);
|
|
QString textcmdStopLink();
|
|
QString textcmdLink(ushort lnkIndex, const QString &text);
|
|
QString textcmdLink(const QString &url, const QString &text);
|
|
QString textcmdStartColor(const style::color &color);
|
|
QString textcmdStopColor();
|
|
const QChar *textSkipCommand(const QChar *from, const QChar *end, bool canLink = true);
|
|
|
|
inline bool chIsSpace(QChar ch, bool rich = false) {
|
|
return ch.isSpace() || (ch < 32 && !(rich && ch == TextCommand)) || (ch == QChar::ParagraphSeparator) || (ch == QChar::LineSeparator) || (ch == QChar::ObjectReplacementCharacter) || (ch == QChar::SoftHyphen) || (ch == QChar::CarriageReturn) || (ch == QChar::Tabulation);
|
|
}
|
|
inline bool chIsBad(QChar ch) {
|
|
return (ch == 0) || (ch >= 8232 && ch < 8237) || (ch >= 65024 && ch < 65040 && ch != 65039) || (ch >= 127 && ch < 160 && ch != 156);
|
|
}
|
|
inline bool chIsTrimmed(QChar ch, bool rich = false) {
|
|
return (!rich || ch != TextCommand) && (chIsSpace(ch) || chIsBad(ch));
|
|
}
|
|
inline bool chIsDiac(QChar ch) { // diac and variation selectors
|
|
QChar::Category c = ch.category();
|
|
return (c == QChar::Mark_NonSpacing);
|
|
}
|
|
inline int32 chMaxDiacAfterSymbol() {
|
|
return 2;
|
|
}
|
|
inline bool chIsNewline(QChar ch) {
|
|
return (ch == QChar::LineFeed || ch == 156);
|
|
}
|
|
inline bool chIsLinkEnd(QChar ch) {
|
|
return ch == TextCommand || chIsBad(ch) || chIsSpace(ch) || chIsNewline(ch) || ch.isLowSurrogate() || ch.isHighSurrogate();
|
|
}
|
|
inline bool chIsAlmostLinkEnd(QChar ch) {
|
|
switch (ch.unicode()) {
|
|
case '?':
|
|
case ',':
|
|
case '.':
|
|
case '"':
|
|
case ':':
|
|
case '!':
|
|
case '\'':
|
|
return true;
|
|
default:
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
inline bool chIsWordSeparator(QChar ch) {
|
|
switch (ch.unicode()) {
|
|
case QChar::Space:
|
|
case QChar::LineFeed:
|
|
case '.':
|
|
case ',':
|
|
case '?':
|
|
case '!':
|
|
case '@':
|
|
case '#':
|
|
case '$':
|
|
case ':':
|
|
case ';':
|
|
case '-':
|
|
case '<':
|
|
case '>':
|
|
case '[':
|
|
case ']':
|
|
case '(':
|
|
case ')':
|
|
case '{':
|
|
case '}':
|
|
case '=':
|
|
case '/':
|
|
case '+':
|
|
case '%':
|
|
case '&':
|
|
case '^':
|
|
case '*':
|
|
case '\'':
|
|
case '"':
|
|
case '`':
|
|
case '~':
|
|
case '|':
|
|
return true;
|
|
default:
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
inline bool chIsSentenceEnd(QChar ch) {
|
|
switch (ch.unicode()) {
|
|
case '.':
|
|
case '?':
|
|
case '!':
|
|
return true;
|
|
default:
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
inline bool chIsSentencePartEnd(QChar ch) {
|
|
switch (ch.unicode()) {
|
|
case ',':
|
|
case ':':
|
|
case ';':
|
|
return true;
|
|
default:
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
inline bool chIsParagraphSeparator(QChar ch) {
|
|
switch (ch.unicode()) {
|
|
case QChar::LineFeed:
|
|
return true;
|
|
default:
|
|
break;
|
|
}
|
|
return false;
|
|
}
|