tdesktop/Telegram/SourceFiles/history/history_drag_area.h

80 lines
2.1 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.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
*/
#pragma once
#include "ui/twidget.h"
#include "ui/effects/rect_shadow.h"
class DragArea : public TWidget {
Q_OBJECT
public:
DragArea(QWidget *parent);
void setText(const QString &text, const QString &subtext);
void otherEnter();
void otherLeave();
void step_appearance(float64 ms, bool timer);
bool overlaps(const QRect &globalRect) {
if (isHidden() || _a_appearance.animating()) return false;
return QRect(st::dragPadding.left(),
st::dragPadding.top(),
width() - st::dragPadding.left() - st::dragPadding.right(),
height() - st::dragPadding.top() - st::dragPadding.bottom()
).contains(QRect(mapFromGlobal(globalRect.topLeft()), globalRect.size()));
}
void hideFast();
protected:
void paintEvent(QPaintEvent *e) override;
void mouseMoveEvent(QMouseEvent *e) override;
void dragEnterEvent(QDragEnterEvent *e) override;
void dragLeaveEvent(QDragLeaveEvent *e) override;
void dropEvent(QDropEvent *e) override;
void dragMoveEvent(QDragMoveEvent *e) override;
signals:
void dropped(const QMimeData *data);
public slots:
void hideStart();
void hideFinish();
void showStart();
private:
bool _hiding, _in;
anim::fvalue a_opacity;
anim::fvalue a_colorDrop;
Animation _a_appearance;
Ui::RectShadow _shadow;
QString _text, _subtext;
};