interpreter/preprocessor/faust-0.9.47mr3/architecture/gui/FUI.h

   1 #ifndef FAUST_FUI_H
   2 #define FAUST_FUI_H
   3
   4 #include "UI.h"
   5
   6 #include <string>
   7 #include <map>
   8 #include <set>
   9 #include <vector>
  10 #include <stack>
  11
  12 #include <iostream>
  13 #include <fstream>
  14
  15 using namespace std;
  16
  17 #if 1
  18
  19 /*******************************************************************************
  20  * FUI : used to save and recall the state of the user interface
  21  * This class provides essentially two new methods saveState() and recallState()
  22  * used to save on file and recall from file the state of the user interface.
  23  * The file is human readble and editable
  24  ******************************************************************************/
  25
  26 class FUI  : public UI
  27 {
  28         stack<string>           fGroupStack;
  29         vector<string>          fNameList;
  30         map<string, float*>     fName2Zone;
  31
  32  protected:
  33
  34         // labels are normalized by replacing white spaces by underscores and by
  35         // removing parenthesis
  36         string normalizeLabel(const char* label)
  37         {
  38                 string  s;
  39                 char    c;
  40
  41                 while ((c=*label++)) {
  42                         if (isspace(c))                                 { s += '_'; }
  43                         //else if ((c == '(') | (c == ')') )    { }
  44                         else                                                    { s += c; }
  45                 }
  46                 return s;
  47         }
  48
  49         // add an element by relating its full name and memory zone
  50         virtual void addElement (const char* label, float* zone)
  51         {
  52                 string fullname (fGroupStack.top() + '/' + normalizeLabel(label));
  53                 fNameList.push_back(fullname);
  54                 fName2Zone[fullname] = zone;
  55         }
  56
  57         // keep track of full group names in a stack
  58         virtual void pushGroupLabel(const char* label)
  59         {
  60                 if (fGroupStack.empty()) {
  61                         fGroupStack.push(normalizeLabel(label));
  62                 } else {
  63                         fGroupStack.push(fGroupStack.top() + '/' + normalizeLabel(label));
  64                 }
  65         }
  66
  67         virtual void popGroupLabel()
  68         {
  69                 fGroupStack.pop();
  70         };
  71
  72  public:
  73
  74         FUI()                   {}
  75         virtual ~FUI()  {}
  76
  77         // -- Save and recall methods
  78
  79         // save the zones values and full names
  80         virtual void saveState(const char* filename)
  81         {
  82                 ofstream f(filename);
  83
  84                 for (unsigned int i=0; i<fNameList.size(); i++) {
  85                         string  n = fNameList[i];
  86                         float*  z = fName2Zone[n];
  87                         f << *z << ' ' << n << endl;
  88                 }
  89
  90                 f << endl;
  91                 f.close();
  92         }
  93
  94         // recall the zones values and full names
  95         virtual void recallState(const char* filename)
  96         {
  97                 ifstream f(filename);
  98                 float   v;
  99                 string  n;
 100
 101                 while (f.good()) {
 102                         f >> v >> n;
 103                         if (fName2Zone.count(n)>0) {
 104                                 *(fName2Zone[n]) = v;
 105                         } else {
 106                                 cerr << "recallState : parameter not found : " << n << " with value : " << v << endl;
 107                         }
 108                 }
 109                 f.close();
 110         }
 111
 112
 113     // -- widget's layouts (just keep track of group labels)
 114
 115     virtual void openFrameBox(const char* label)                { pushGroupLabel(label); }
 116     virtual void openTabBox(const char* label)                  { pushGroupLabel(label); }
 117     virtual void openHorizontalBox(const char* label)   { pushGroupLabel(label); }
 118     virtual void openVerticalBox(const char* label)     { pushGroupLabel(label); }
 119     virtual void closeBox()                                                     { popGroupLabel(); };
 120
 121     // -- active widgets (just add an element)
 122
 123     virtual void addButton(const char* label, float* zone)                      { addElement(label, zone); }
 124     virtual void addToggleButton(const char* label, float* zone)        { addElement(label, zone); }
 125     virtual void addCheckButton(const char* label, float* zone)         { addElement(label, zone); }
 126     virtual void addVerticalSlider(const char* label, float* zone, float , float , float , float )
 127                                                                                                                                 { addElement(label, zone); }
 128     virtual void addHorizontalSlider(const char* label, float* zone, float , float , float , float )
 129                                                                                                                                 { addElement(label, zone); }
 130     virtual void addNumEntry(const char* label, float* zone, float , float , float , float )
 131                                                                                                                                 { addElement(label, zone); }
 132
 133     // -- passive widgets (are ignored)
 134
 135     virtual void addNumDisplay(const char* , float* , int ) {};
 136     virtual void addTextDisplay(const char* , float* , const char*[], float , float ) {};
 137     virtual void addHorizontalBargraph(const char* , float* , float , float ) {};
 138     virtual void addVerticalBargraph(const char* , float* , float , float ) {};
 139
 140         // -- metadata are not used
 141
 142     virtual void declare(float* , const char* , const char* ) {}
 143 };
 144 #endif
 145
 146 #endif
 147