/usr/include/mgl2/wnd.h is in libmgl-dev 2.2.2.1-3+b2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* wnd.h is part of Math Graphic Library
* Copyright (C) 2007-2014 Alexey Balakin <mathgl.abalakin@gmail.ru> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Library 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 General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef _MGL_WND_H_
#define _MGL_WND_H_
#include "mgl2/mgl.h"
//-----------------------------------------------------------------------------
/// Class for drawing in windows (like, mglCanvasFL, mglCanvasQT and so on)
/// Make inherited class and redefine Draw() function if you don't want to use function pointers.
class MGL_EXPORT mglDraw
{
public:
virtual int Draw(mglGraph *)=0; ///< Function for drawing
virtual void Reload() {} ///< Function for reloading data
virtual void Click() {} ///< Callback function on mouse click
virtual ~mglDraw() {}
#if MGL_HAVE_PTHREAD
pthread_t thr;
bool running;
mglDraw() { running=false; }
virtual void Calc() {} ///< Function for calculations
inline void Run() ///< Run calculations in other thread
{ mgl_draw_thr(this); }
#else
mglDraw(){}
#endif
};
//-----------------------------------------------------------------------------
extern "C" {
int MGL_EXPORT mgl_draw_graph(HMGL gr, void *p);
// NOTE: MGL_EXPORT mgl_draw_class() and MGL_EXPORT mgl_draw_load() use mglWindow* only. Don't use it with inherited classes
int MGL_EXPORT mgl_draw_class(HMGL gr, void *p);
void MGL_EXPORT mgl_click_class(void *p);
void MGL_EXPORT mgl_reload_class(void *p);
}
//-----------------------------------------------------------------------------
/// Abstract class for windows displaying graphics
class MGL_EXPORT mglWnd : public mglGraph
{
public:
mglWnd() : mglGraph(-1) {}
virtual int Run()=0; ///< Run main loop for event handling
inline void ToggleAlpha() ///< Switch on/off transparency (do not overwrite user settings)
{ mgl_wnd_toggle_alpha(gr); }
inline void ToggleLight() ///< Switch on/off lighting (do not overwrite user settings)
{ mgl_wnd_toggle_light(gr); }
inline void ToggleZoom() ///< Switch on/off zooming by mouse
{ mgl_wnd_toggle_zoom(gr); }
inline void ToggleRotate() ///< Switch on/off rotation by mouse
{ mgl_wnd_toggle_rotate(gr); }
inline void ToggleNo() ///< Switch off all zooming and rotation
{ mgl_wnd_toggle_no(gr); }
inline void Update() ///< Update picture by calling user drawing function
{ mgl_wnd_update(gr); }
inline void ReLoad() ///< Reload user data and update picture
{ mgl_wnd_reload(gr); }
inline void Adjust() ///< Adjust size of bitmap to window size
{ mgl_wnd_adjust(gr); }
inline void NextFrame() ///< Show next frame (if one)
{ mgl_wnd_next_frame(gr); }
inline void PrevFrame() ///< Show previous frame (if one)
{ mgl_wnd_prev_frame(gr); }
inline void Animation() ///< Run slideshow (animation) of frames
{ mgl_wnd_animation(gr); }
void SetClickFunc(void (*func)(void *p)) ///< Callback function for mouse click
{ mgl_set_click_func(gr,func); }
inline void SetDelay(double dt) ///< Set delay for animation in seconds
{ mgl_wnd_set_delay(gr, dt); }
inline double GetDelay() ///< Get delay for animation in seconds
{ return mgl_wnd_get_delay(gr); }
inline void Setup(bool clf_upd=true, bool showpos=false)
{ mgl_setup_window(gr, clf_upd, showpos); }
inline mglPoint LastMousePos() ///< Last mouse position
{ mreal x,y,z; mgl_get_last_mouse_pos(gr,&x,&y,&z); return mglPoint(x,y,z); }
};
//-----------------------------------------------------------------------------
#endif
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