138 lines
6.4 KiB
C
138 lines
6.4 KiB
C
|
/***************************************************************************
|
||
|
|
* wnd.h is part of Math Graphic Library
|
||
|
|
* Copyright (C) 2007-2016 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"
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
MGL_EXPORT void *mgl_draw_calc(void *p);
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
/// 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
|
||
|
|
#if MGL_HAVE_PTHR_WIDGET
|
||
|
|
mglDraw() { running=false; pthread_mutex_init(&mutex,NULL); }
|
||
|
|
virtual ~mglDraw() { pthread_mutex_destroy(&mutex); }
|
||
|
|
|
||
|
|
virtual void Calc() {} ///< Function for calculations
|
||
|
|
inline void Run() ///< Run/resume calculation in other thread
|
||
|
|
{
|
||
|
|
if(!running)
|
||
|
|
{ pthread_mutex_trylock(&mutex); pthread_mutex_unlock(&mutex);
|
||
|
|
pthread_create(&thr,0,mgl_draw_calc,this);
|
||
|
|
pthread_detach(thr); running = true; }
|
||
|
|
}
|
||
|
|
inline void Cancel() ///< Cancel thread with calculations
|
||
|
|
{ pthread_cancel(thr); running = false; }
|
||
|
|
inline void Pause() ///< Pause calculation
|
||
|
|
{ pthread_mutex_lock(&mutex); }
|
||
|
|
inline void Continue() ///< Continue calculation
|
||
|
|
{ pthread_mutex_trylock(&mutex); pthread_mutex_unlock(&mutex); }
|
||
|
|
inline void Check() ///< Check if calculation can be continued (should be called inside Calc() )
|
||
|
|
{ pthread_mutex_lock(&mutex); pthread_mutex_unlock(&mutex); }
|
||
|
|
//protected:
|
||
|
|
pthread_t thr;
|
||
|
|
bool running;
|
||
|
|
pthread_mutex_t mutex;
|
||
|
|
|
||
|
|
#else
|
||
|
|
mglDraw() {}
|
||
|
|
virtual ~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
|
||
|
|
{
|
||
|
|
mglWnd(const mglWnd &) {} // copying is not allowed
|
||
|
|
const mglWnd &operator=(const mglWnd &t) { return t; }
|
||
|
|
public:
|
||
|
|
mglWnd() : mglGraph(-1) {}
|
||
|
|
virtual ~mglWnd() { mgl_use_graph(gr,-255); }
|
||
|
|
virtual int Run()=0; ///< Run main loop for event handling
|
||
|
|
/// Return pointer to widget used for plotting
|
||
|
|
virtual void *Widget() { return NULL; }
|
||
|
|
|
||
|
|
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); }
|
||
|
|
inline void SetClickFunc(void (*func)(void *p)) ///< Callback function for mouse click
|
||
|
|
{ mgl_set_click_func(gr,func); }
|
||
|
|
/// Set callback functions for drawing and data reloading
|
||
|
|
inline void SetDrawFunc(int (*draw)(mglBase *gr, void *p), void *par=NULL, void (*reload)(void *p)=NULL)
|
||
|
|
{ mgl_wnd_set_func(gr,draw,par,reload); }
|
||
|
|
inline void SetDrawFunc(int (*draw)(mglGraph *gr))
|
||
|
|
{ mgl_wnd_set_func(gr,draw?mgl_draw_graph:0,(void*)draw,0); }
|
||
|
|
inline void SetDrawFunc(mglDraw *draw)
|
||
|
|
{ mgl_wnd_set_func(gr,draw?mgl_draw_class:0,draw,mgl_reload_class);
|
||
|
|
#if MGL_HAVE_PTHR_WIDGET
|
||
|
|
mgl_wnd_set_mutex(gr, &(draw->mutex));
|
||
|
|
#endif
|
||
|
|
mgl_set_click_func(gr, mgl_click_class); }
|
||
|
|
#if MGL_HAVE_PTHR_WIDGET
|
||
|
|
/// Mutex for lock/unlock by widget
|
||
|
|
inline void SetMutex(pthread_mutex_t *mutex)
|
||
|
|
{ mgl_wnd_set_mutex(gr, mutex); }
|
||
|
|
#endif
|
||
|
|
|
||
|
|
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
|