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gui.C

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00001 //----------------------------------------------------------------------
00002 //               The Motion Strategy Library (MSL)
00003 //----------------------------------------------------------------------
00004 //
00005 // Copyright (c) 1998-2000 Iowa State University and Steve LaValle.  
00006 // All Rights Reserved.
00007 // 
00008 // Permission to use, copy, and distribute this software and its 
00009 // documentation is hereby granted free of charge, provided that 
00010 // (1) it is not a component of a commercial product, and 
00011 // (2) this notice appears in all copies of the software and
00012 //     related documentation. 
00013 // 
00014 // Iowa State University and the author make no representations
00015 // about the suitability or fitness of this software for any purpose.  
00016 // It is provided "as is" without express or implied warranty.
00017 //----------------------------------------------------------------------
00018 
00019 #include <math.h>
00020 #include <stdio.h>
00021 #include <fstream.h>
00022 
00023 #include "gui.h"
00024 #include "defs.h"
00025 
00026 #include <LEDA/REDEFINE_NAMES.h>
00027 
00028 
00030 //
00031 //  Gui class
00032 //
00034 
00035 Gui::Gui(Render *render) {
00036   R = render;
00037 
00038   FilePath = R->FilePath;
00039 }
00040 
00041 
00042 void Gui::Init() 
00043 {
00044   // Perform Render initialization
00045   R->Init();
00046 }
00047 
00048 
00049 
00050 void Gui::Start() 
00051 {
00052   // Perform initialization
00053   Init();
00054 
00055   // Enter the event processing loop
00056   MainLoop();
00057 }
00058 
00059 
00060 
00061 void Gui::HandleEvents() 
00062 {
00063   double x,y;
00064   int val,e;
00065   window *wp = NULL;
00066 
00067   e = get_event(wp,val,x,y);
00068   
00069   if (e == button_press_event) {
00070     // The Gui window buttons
00071     if (wp == W) 
00072       ButtonHandle(val);
00073     // The Render control window buttons
00074     if ((R->RenderCtlWindowOn)&&(wp == R->RenderCtlWindow)) {
00075       R->ButtonHandle(val);
00076       R->RenderCtlWindow->redraw_panel();
00077     }
00078   }
00079 }
00080 
00081 
00082 
00083 void Gui::MainLoop() 
00084 {
00085   if (R->ControlFreak) { // Does the renderer NEED to be in control?
00086     R->MainLoop(this); // Give a pointer to this Gui
00087     // It is the responsibility of Render to handle Gui events
00088   }
00089   else {
00090     Finished = false;
00091     while (!Finished) {
00092       R->HandleEvents(); // Handle events in the renderer
00093       HandleEvents();
00094     }
00095   }
00096 
00097   R->Terminate();  // If we ever get here (some control freaks don't allow it)
00098 }
00099 
00100 
00101 #include <LEDA/UNDEFINE_NAMES.h>
00102 
Motion Strategy Library


Web page maintained by Steve LaValle
Partial support provided by NSF CAREER Award IRI-970228 (LaValle), Honda Research, and Iowa State University.
Contributors: Anna Atramentov, Peng Cheng, James Kuffner, Steve LaValle, and Libo Yang.