84 lines
4.3 KiB
C
84 lines
4.3 KiB
C
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/***************************************************************************
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* canvas_wnd.h is part of Math Graphic Library
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* Copyright (C) 2007-2016 Alexey Balakin <mathgl.abalakin@gmail.ru> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU Library General Public License as *
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* published by the Free Software Foundation; either version 3 of the *
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* License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifndef _MGL_CANVAS_WND_H_
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#define _MGL_CANVAS_WND_H_
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#include "mgl2/canvas.h"
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#include "mgl2/wnd.h"
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//-----------------------------------------------------------------------------
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/// Base class for windows containing MathGL graphics
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class MGL_EXPORT mglCanvasWnd : public mglCanvas
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{
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public:
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mglPoint LastMousePos; ///< Last mouse position
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void (*ClickFunc)(void *par); ///< Callback function on click
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#if MGL_HAVE_PTHR_WIDGET
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pthread_mutex_t *mutex;
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#endif
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mglCanvasWnd();
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virtual ~mglCanvasWnd();
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void SetSize(int w,int h,bool clf=true);
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void EndFrame();
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void SetFrame(long i);
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void DelFrame(long i);
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const unsigned char *GetBits();
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inline int GetNumFig() const { return NumFig; }
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inline int GetCurFig() const { return CurFig; }
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void SetCurFig(int c);
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void ResetFrames();
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inline mglPoint GetMousePos() const { return LastMousePos;}
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inline void SetMousePos(mglPoint p) { LastMousePos=p; }
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inline void Setup(bool clf_upd=true, bool showpos=false)
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{ set(showpos,MGL_SHOW_POS); set(clf_upd,MGL_CLF_ON_UPD);
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if(!clf_upd) ResetFrames(); }
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virtual void ToggleAlpha()=0; ///< Switch on/off transparency (do not overwrite user settings)
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virtual void ToggleLight()=0; ///< Switch on/off lighting (do not overwrite user settings)
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virtual void ToggleZoom()=0; ///< Switch on/off zooming by mouse
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virtual void ToggleRotate()=0; ///< Switch on/off rotation by mouse
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virtual void ToggleNo()=0; ///< Switch off all zooming and rotation
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virtual void Update()=0; ///< Update picture by calling user drawing function
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virtual void Adjust()=0; ///< Adjust size of bitmap to window size
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virtual void GotoFrame(int d)=0;///< Show arbitrary frame (use relative step)
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virtual void NextFrame() {GotoFrame(+1);} ///< Show next frame (if one)
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virtual void PrevFrame() {GotoFrame(-1);} ///< Show previous frame (if one)
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virtual void Animation()=0; ///< Run slideshow (animation) of frames
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void ReLoad(); ///< Reload user data and update picture
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/// Create a window for plotting based on callback function (can be NULL).
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virtual void Window(int argc, char **argv, int (*draw)(mglBase *gr, void *p),
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const char *title, void *par=NULL,
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void (*reload)(void *p)=NULL, bool maximize=false)=0;
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void SetDrawFunc(int (*draw)(mglBase *gr, void *p), void *par=NULL, void (*reload)(void *p)=NULL);
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private:
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int CurFig; ///< Current figure in the list.
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unsigned char *GG; ///< images for all frames (may be too LARGE !!!)
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int NumFig; ///< Number of figures in the list. If 0 then no list and mglCanvas::DrawFunc will called for each drawing.
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void (*LoadFunc)(void *par);
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void *FuncPar; ///< Parameters for drawing function mglCanvas::DrawFunc.
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/// Drawing function for window procedure. It should return the number of frames.
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int (*DrawFunc)(mglBase *gr, void *par);
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};
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//-----------------------------------------------------------------------------
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#endif
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