58 lines
1.5 KiB
C++
58 lines
1.5 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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class TWidget : public QWidget {
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Q_OBJECT
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public:
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TWidget(QWidget *parent = 0) : QWidget(parent) {
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}
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TWidget *tparent() {
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return dynamic_cast<TWidget*>(parentWidget());
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}
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const TWidget *tparent() const {
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return dynamic_cast<const TWidget*>(parentWidget());
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}
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virtual void leaveToChildEvent(QEvent *e) { // e -- from enterEvent() of child TWidget
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}
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virtual void enterFromChildEvent(QEvent *e) { // e -- from leaveEvent() of child TWidget
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}
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bool event(QEvent *e) {
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return QWidget::event(e);
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}
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protected:
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void enterEvent(QEvent *e) {
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TWidget *p(tparent());
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if (p) p->leaveToChildEvent(e);
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}
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void leaveEvent(QEvent *e) {
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TWidget *p(tparent());
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if (p) p->enterFromChildEvent(e);
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}
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private:
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};
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QPixmap myGrab(QWidget *target, const QRect &rect);
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