tdesktop/Telegram/SourceFiles/gui/flattextarea.h

139 lines
3.5 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014 John Preston, https://desktop.telegram.org
*/
#pragma once
#include <QtWidgets/QTextEdit>
#include "style.h"
#include "animation.h"
class FlatTextarea : public QTextEdit, public Animated {
Q_OBJECT
public:
FlatTextarea(QWidget *parent, const style::flatTextarea &st, const QString &ph = QString(), const QString &val = QString());
bool viewportEvent(QEvent *e);
void touchEvent(QTouchEvent *e);
void paintEvent(QPaintEvent *e);
void focusInEvent(QFocusEvent *e);
void focusOutEvent(QFocusEvent *e);
void keyPressEvent(QKeyEvent *e);
void resizeEvent(QResizeEvent *e);
void mousePressEvent(QMouseEvent *e);
const QString &getLastText() const;
void updatePlaceholder();
QRect getTextRect() const;
int32 fakeMargin() const;
bool animStep(float64 ms);
QSize sizeHint() const;
QSize minimumSizeHint() const;
EmojiPtr getSingleEmoji() const;
void getMentionHashtagBotCommandStart(QString &start) const;
void removeSingleEmoji();
QString getText(int32 start = 0, int32 end = -1) const;
bool hasText() const;
bool isUndoAvailable() const;
bool isRedoAvailable() const;
void parseLinks();
QStringList linksList() const;
void insertFromMimeData(const QMimeData *source);
public slots:
void onTouchTimer();
void onDocumentContentsChange(int position, int charsRemoved, int charsAdded);
void onDocumentContentsChanged();
void onUndoAvailable(bool avail);
void onRedoAvailable(bool avail);
void onMentionHashtagOrBotCommandInsert(QString str);
signals:
void changed();
void submitted(bool ctrlShiftEnter);
void cancelled();
void tabbed();
void spacedReturnedPasted();
void linksChanged();
protected:
void insertEmoji(EmojiPtr emoji, QTextCursor c);
TWidget *tparent() {
return qobject_cast<TWidget*>(parentWidget());
}
const TWidget *tparent() const {
return qobject_cast<const TWidget*>(parentWidget());
}
void enterEvent(QEvent *e) {
TWidget *p(tparent());
if (p) p->leaveToChildEvent(e);
return QTextEdit::enterEvent(e);
}
void leaveEvent(QEvent *e) {
TWidget *p(tparent());
if (p) p->enterFromChildEvent(e);
return QTextEdit::leaveEvent(e);
}
QVariant loadResource(int type, const QUrl &name);
private:
void getSingleEmojiFragment(QString &text, QTextFragment &fragment) const;
void processDocumentContentsChange(int position, int charsAdded);
QMimeData *createMimeDataFromSelection() const;
QString _ph, _phelided, _oldtext;
bool _phVisible;
anim::ivalue a_phLeft;
anim::fvalue a_phAlpha;
anim::cvalue a_phColor;
style::flatTextarea _st;
bool _undoAvailable, _redoAvailable;
int32 _fakeMargin;
QTimer _touchTimer;
bool _touchPress, _touchRightButton, _touchMove;
QPoint _touchStart;
bool _replacingEmojis;
typedef QPair<int, int> Insertion;
typedef QList<Insertion> Insertions;
Insertions _insertions;
typedef QPair<int, int> LinkRange;
typedef QList<LinkRange> LinkRanges;
LinkRanges _links;
};