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//=============================================================================
// toolbuttonmenu.h
//
// Copyright (C) 2016 Peter Jonas <shoogle@users.noreply.github.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2
// as published by the Free Software Foundation and appearing in
// the file LICENCE.GPL
//=============================================================================
#ifndef TOOLBUTTONMENU_H
#define TOOLBUTTONMENU_H
#include "accessibletoolbutton.h"
namespace Ms {
//---------------------------------------------------------
// ToolButtonMenu
// ==============
// This creates a button with an arrow next to it. Clicking the button triggers the default
// action, while pressing the arrow brings up a menu of alternative actions and/or other
// actions. Selecting an alternative action has some effect on the default action's icon
// and/or its behavior. Other actions have no effect on the default action.
//---------------------------------------------------------
class ToolButtonMenu : public AccessibleToolButton { // : public QToolButton {
Q_OBJECT
public:
enum class TYPES {
// What happens to the default action if an alternative (non-default) action is triggered?
FIXED, // default action is also triggered but is otherwise unchanged.
ICON_CHANGED, // default action is triggered and its icon is modified and/or set to that of the triggering action.
ACTION_SWAPPED // default action is not triggered. Triggering action (and its icon) become the new default.
};
private:
TYPES _type;
QActionGroup* _alternativeActions;
public:
ToolButtonMenu(QString str,
TYPES type,
QAction* defaultAction,
QActionGroup* alternativeActions,
QWidget* parent);
void addAction(QAction* a) { menu()->addAction(a); }
void addSeparator() { menu()->addSeparator(); }
void addActions(QList<QAction*> actions) { for (QAction* a : actions) addAction(a); }
private:
void switchIcon(QAction* a) {
Q_ASSERT(_type == TYPES::ICON_CHANGED && _alternativeActions->actions().contains(a));
defaultAction()->setIcon(a->icon());
}
protected:
virtual void changeIcon(QAction* a) { switchIcon(a); }
private slots:
void handleAlternativeAction(QAction* a);
};
} // namespace Ms
#endif // TOOLBUTTONMENU_H
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