1/* Copyright (c) 2013-2015 Jeffrey Pfau
  2 *
  3 * This Source Code Form is subject to the terms of the Mozilla Public
  4 * License, v. 2.0. If a copy of the MPL was not distributed with this
  5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
  6#ifndef QGBA_SHORTCUT_MODEL
  7#define QGBA_SHORTCUT_MODEL
  8
  9#include <QAbstractItemModel>
 10#include <QKeySequence>
 11
 12#include <functional>
 13
 14class QAction;
 15class QKeyEvent;
 16class QMenu;
 17class QString;
 18
 19namespace QGBA {
 20
 21class ShortcutController : public QAbstractItemModel {
 22Q_OBJECT
 23
 24private:
 25	class ShortcutItem {
 26	public:
 27		typedef QPair<std::function<void ()>, std::function<void ()>> Functions;
 28
 29		ShortcutItem(QAction* action, const QString& name, ShortcutItem* parent = nullptr);
 30		ShortcutItem(Functions functions, const QKeySequence& shortcut, const QString& visibleName, const QString& name, ShortcutItem* parent = nullptr);
 31		ShortcutItem(QMenu* action, ShortcutItem* parent = nullptr);
 32
 33		QAction* action() { return m_action; }
 34		const QAction* action() const { return m_action; }
 35		const QKeySequence& shortcut() const { return m_shortcut; }
 36		Functions functions() const { return m_functions; }
 37		QMenu* menu() { return m_menu; }
 38		const QMenu* menu() const { return m_menu; }
 39		const QString& visibleName() const { return m_visibleName; }
 40		const QString& name() const { return m_name; }
 41		QList<ShortcutItem>& items() { return m_items; }
 42		const QList<ShortcutItem>& items() const { return m_items; }
 43		ShortcutItem* parent() { return m_parent; }
 44		const ShortcutItem* parent() const { return m_parent; }
 45		void addAction(QAction* action, const QString& name);
 46		void addFunctions(Functions functions, const QKeySequence& shortcut, const QString& visibleName, const QString& name);
 47		void addSubmenu(QMenu* menu);
 48		int button() const { return m_button; }
 49		void setShortcut(const QKeySequence& sequence);
 50		void setButton(int button) { m_button = button; }
 51
 52		bool operator==(const ShortcutItem& other) const { return m_menu == other.m_menu && m_action == other.m_action; }
 53
 54	private:
 55		QAction* m_action;
 56		QKeySequence m_shortcut;
 57		QMenu* m_menu;
 58		Functions m_functions;
 59		QString m_name;
 60		QString m_visibleName;
 61		int m_button;
 62		QList<ShortcutItem> m_items;
 63		ShortcutItem* m_parent;
 64	};
 65
 66public:
 67	ShortcutController(QObject* parent = nullptr);
 68
 69	virtual QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
 70	virtual QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
 71
 72	virtual QModelIndex index(int row, int column, const QModelIndex& parent) const override;
 73	virtual QModelIndex parent(const QModelIndex& index) const override;
 74
 75	virtual int columnCount(const QModelIndex& parent = QModelIndex()) const override;
 76	virtual int rowCount(const QModelIndex& parent = QModelIndex()) const override;
 77
 78	void addAction(QMenu* menu, QAction* action, const QString& name);
 79	void addFunctions(QMenu* menu, std::function<void ()> press, std::function<void()> release, const QKeySequence& shortcut, const QString& visibleName, const QString& name);
 80	void addMenu(QMenu* menu, QMenu* parent = nullptr);
 81
 82	ShortcutItem* itemAt(const QModelIndex& index);
 83	const ShortcutItem* itemAt(const QModelIndex& index) const;
 84	const QAction* actionAt(const QModelIndex& index) const;
 85
 86	void updateKey(const QModelIndex& index, const QKeySequence& keySequence);
 87	void updateButton(const QModelIndex& index, int button);
 88
 89protected:
 90	bool eventFilter(QObject*, QEvent*) override;
 91
 92private:
 93	static QKeySequence keyEventToSequence(const QKeyEvent*);
 94	ShortcutItem m_rootMenu;
 95	QMap<QMenu*, ShortcutItem*> m_menuMap;
 96	QMap<int, ShortcutItem*> m_buttons;
 97	QMap<QKeySequence, ShortcutItem*> m_heldKeys;
 98};
 99
100}
101
102#endif