/*
    QGL MouseController
    Ivan Pelipenko peri4ko@yandex.ru

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program 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 Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef MOUSE_CONTROLLER_H
#define MOUSE_CONTROLLER_H

#include "glcamera.h"
#include "glprimitives.h"
#include "renderer_service.h"

#include <QMouseEvent>
#include <QTime>


class MouseController: public QObject {
	friend class QGLView;
	friend class RendererSelection;
	Q_OBJECT

public:
	MouseController(QGLView * view_);
	virtual ~MouseController();

	bool isGrabMouseEnabled() const { return grabMouse_; }
	bool isMouseRotateEnabled() const { return mouseRotate_; }
	bool isMouseSelectionEnabled() const { return mouseSelect_; }
	bool isCameraOrbit() const { return cameraOrbit_; }

	Qt::MouseButton selectionButton() const { return sel_button; }
	Qt::KeyboardModifier selectionModifier() const { return sel_mod; }

	void setSelectionButton(Qt::MouseButton v) { sel_button = v; }
	void setSelectionModifier(Qt::KeyboardModifier v) { sel_mod = v; }

protected:
	void resize();
	void mousePressEvent(QMouseEvent * e);
	void mouseMoveEvent(QMouseEvent * e);
	void mouseReleaseEvent(QMouseEvent * e);
	void wheelEvent(QWheelEvent * e);
	void leaveEvent(QEvent *);
	void mouseDoubleClickEvent(QMouseEvent * e);

private:
	QGLView * view;
	QPoint lastPos, downPos;
	QSet<int> keys_;
	QVector<ObjectBase *> hov_objects, hov_aims;
	Qt::MouseButton sel_button;
	Qt::KeyboardModifier sel_mod;
	RendererService::HandleAction cur_action;
	QFlags<RendererService::HandleMesh> cur_handle;
	float app_scale;
	bool grabMouse_, mouse_first, mouseRotate_, mouseSelect_, customMouseMove_, canSelect_;
	bool cameraOrbit_, selecting_, mouse_sec;

private slots:

public slots:
	void setGrabMouseEnabled(const bool & arg) {
		grabMouse_  = arg;
		mouse_first = true;
	}
	void setMouseRotateEnabled(const bool & arg) { mouseRotate_ = arg; }
	void setMouseSelectionEnabled(const bool & arg) { mouseSelect_ = arg; }
	void setCustomMouseMove(const bool & arg) { customMouseMove_ = arg; }
	void setCameraOrbit(const bool & arg) { cameraOrbit_ = arg; }

signals:
};

#endif // QGLVIEW_H