mirror of
https://github.com/telegramdesktop/tdesktop
synced 2024-12-23 23:14:41 +00:00
79 lines
1.6 KiB
C++
79 lines
1.6 KiB
C++
/*
|
|
This file is part of Telegram Desktop,
|
|
the official desktop application for the Telegram messaging service.
|
|
|
|
For license and copyright information please follow this link:
|
|
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
|
|
*/
|
|
#pragma once
|
|
|
|
#include "ui/rp_widget.h"
|
|
|
|
namespace Ui {
|
|
|
|
class ResizeArea : public RpWidget {
|
|
public:
|
|
ResizeArea(QWidget *parent) : RpWidget(parent) {
|
|
setCursor(style::cur_sizehor);
|
|
}
|
|
|
|
rpl::producer<int> moveLeft() const {
|
|
return _moveLeft.events();
|
|
}
|
|
template <typename Callback>
|
|
void addMoveLeftCallback(Callback &&callback) {
|
|
moveLeft(
|
|
) | rpl::start_with_next(
|
|
std::forward<Callback>(callback),
|
|
lifetime());
|
|
}
|
|
|
|
rpl::producer<> moveFinished() const {
|
|
return _moveFinished.events();
|
|
}
|
|
template <typename Callback>
|
|
void addMoveFinishedCallback(Callback &&callback) {
|
|
moveFinished(
|
|
) | rpl::start_with_next(
|
|
std::forward<Callback>(callback),
|
|
lifetime());
|
|
}
|
|
|
|
~ResizeArea() {
|
|
moveFinish();
|
|
}
|
|
|
|
protected:
|
|
void mousePressEvent(QMouseEvent *e) override {
|
|
if (e->button() == Qt::LeftButton) {
|
|
_moving = true;
|
|
_moveStartLeft = e->pos().x();
|
|
}
|
|
}
|
|
void mouseReleaseEvent(QMouseEvent *e) override {
|
|
if (e->button() == Qt::LeftButton) {
|
|
moveFinish();
|
|
}
|
|
}
|
|
void mouseMoveEvent(QMouseEvent *e) override {
|
|
if (_moving) {
|
|
_moveLeft.fire(e->globalPos().x() - _moveStartLeft);
|
|
}
|
|
}
|
|
|
|
private:
|
|
void moveFinish() {
|
|
if (base::take(_moving)) {
|
|
_moveFinished.fire({});
|
|
}
|
|
}
|
|
|
|
rpl::event_stream<int> _moveLeft;
|
|
rpl::event_stream<> _moveFinished;
|
|
int _moveStartLeft = 0;
|
|
bool _moving = false;
|
|
|
|
};
|
|
|
|
} // namespace Ui
|