tdesktop/Telegram/SourceFiles/ui/widgets/popup_menu.h

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/*
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) 2014-2016 John Preston, https://desktop.telegram.org
*/
#pragma once
#include "styles/style_widgets.h"
#include "ui/widgets/menu.h"
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#include "ui/effects/panel_animation.h"
namespace Ui {
class PopupMenu : public TWidget {
public:
PopupMenu(const style::PopupMenu &st = st::defaultPopupMenu);
PopupMenu(QMenu *menu, const style::PopupMenu &st = st::defaultPopupMenu);
QAction *addAction(const QString &text, const QObject *receiver, const char* member, const style::icon *icon = nullptr, const style::icon *iconOver = nullptr);
QAction *addAction(const QString &text, base::lambda<void()> &&callback, const style::icon *icon = nullptr, const style::icon *iconOver = nullptr);
QAction *addSeparator();
void clearActions();
using Actions = Ui::Menu::Actions;
Actions &actions();
void deleteOnHide(bool del);
void popup(const QPoint &p);
void hideMenu(bool fast = false);
~PopupMenu();
protected:
void paintEvent(QPaintEvent *e) override;
void focusOutEvent(QFocusEvent *e) override;
void hideEvent(QHideEvent *e) override;
void keyPressEvent(QKeyEvent *e) override {
forwardKeyPress(e->key());
}
void mouseMoveEvent(QMouseEvent *e) override {
forwardMouseMove(e->globalPos());
}
void mousePressEvent(QMouseEvent *e) override {
forwardMousePress(e->globalPos());
}
private:
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void paintBg(Painter &p);
void hideFast();
void setOrigin(PanelAnimation::Origin origin);
void showAnimated(PanelAnimation::Origin origin);
void hideAnimated();
QImage grabForPanelAnimation();
void startShowAnimation();
void startOpacityAnimation(bool hiding);
void prepareCache();
void childHiding(PopupMenu *child);
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void showAnimationCallback();
void opacityAnimationCallback();
void init();
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void hideFinished();
void showStarted();
using TriggeredSource = Ui::Menu::TriggeredSource;
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void handleCompositingUpdate();
void handleMenuResize();
void handleActivated(QAction *action, int actionTop, TriggeredSource source);
void handleTriggered(QAction *action, int actionTop, TriggeredSource source);
void forwardKeyPress(int key);
bool handleKeyPress(int key);
void forwardMouseMove(QPoint globalPosition) {
_menu->handleMouseMove(globalPosition);
}
void handleMouseMove(QPoint globalPosition);
void forwardMousePress(QPoint globalPosition) {
_menu->handleMousePress(globalPosition);
}
void handleMousePress(QPoint globalPosition);
void forwardMouseRelease(QPoint globalPosition) {
_menu->handleMouseRelease(globalPosition);
}
void handleMouseRelease(QPoint globalPosition);
using SubmenuPointer = QPointer<PopupMenu>;
bool popupSubmenuFromAction(QAction *action, int actionTop, TriggeredSource source);
void popupSubmenu(SubmenuPointer submenu, int actionTop, TriggeredSource source);
void showMenu(const QPoint &p, PopupMenu *parent, TriggeredSource source);
const style::PopupMenu &_st;
ChildWidget<Ui::Menu> _menu;
using Submenus = QMap<QAction*, SubmenuPointer>;
Submenus _submenus;
PopupMenu *_parent = nullptr;
QRect _inner;
style::margins _padding;
SubmenuPointer _activeSubmenu;
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PanelAnimation::Origin _origin = PanelAnimation::Origin::TopLeft;
std_::unique_ptr<PanelAnimation> _showAnimation;
FloatAnimation _a_show;
bool _useTransparency = true;
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bool _hiding = false;
QPixmap _cache;
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FloatAnimation _a_opacity;
bool _deleteOnHide = true;
bool _triggering = false;
bool _deleteLater = false;
};
} // namespace Ui