x11device.h

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/*
    This file is part of Mitsuba, a physically based rendering system.

    Copyright (c) 2007-2014 by Wenzel Jakob and others.

    Mitsuba is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License Version 3
    as published by the Free Software Foundation.

    Mitsuba 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.

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

#if !defined(__MITSUBA_HW_X11DEVICE_H_)
#define __MITSUBA_HW_X11DEVICE_H_

#include <mitsuba/hw/device.h>
#include <mitsuba/hw/x11session.h>

MTS_NAMESPACE_BEGIN

/** \brief X Window System (X11R6) device / software surface
 * \ingroup libhw
 */
class MTS_EXPORT_HW X11Device : public Device {
        friend class X11Session;
        friend class GLXRenderer;
public:
        /// Create a new device
        X11Device(X11Session *session);

        /// Initialize the device
        void init(Device *other = NULL);

        /// Shut the device down
        void shutdown();

        /// Flip the buffers
        virtual void flip();

        /// Only applies in windowed mode
        void setVisible(bool enabled);

        /// Only applies in windowed mode
        void setPosition(const Point2i &position);

        /// Set the window title
        void setTitle(const std::string &title);

        /// Display the X11 cursor?
        void showCursor(bool enabled);

        /// Set the cursor grab state
        void setGrab(bool grab);

        /// Move the mouse to another position
        void warpMouse(const Point2i &position);

        /// Handle an X11 event. Called by the session
        void processEvent(const XEvent &event);

        /// Associate a renderer with this device
        void makeCurrent(Renderer *renderer);

        MTS_DECLARE_CLASS()
protected:
        /// Virtual destructor
        virtual ~X11Device();

        /// Create a visual
        virtual XVisualInfo* createVisual();
private:
        /// Translate X11 mouse events
        void translateMouse(const XEvent &xEvent, DeviceEvent &event);

        /// Translate X11 keyboard events
        bool translateKeyboard(const XEvent &xEvent, DeviceEvent &event);

        /// Return the X11 window
        inline Window getWindow() { return m_window; }

        /// Return the X11 visual
        inline XVisualInfo *getVisual() { return m_visinfo; }
protected:
        Window m_window;
        XVisualInfo *m_visinfo;
        XF86VidModeModeInfo m_previousMode;
        Atom m_deleteWindow;
        bool m_visible;
        Cursor m_cursor;
    int m_keymap[256];
        Point2i m_mouse;
        int m_modifierState;
        int m_buttonState;
        bool m_grab;
};

MTS_NAMESPACE_END

#endif /* __MITSUBA_HW_X11DEVICE_H_ */