include/wx/prop.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        prop.h
   3 // Purpose:     Property sheet classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_PROP_H_
  13 #define _WX_PROP_H_
  14
  15 #ifdef __GNUG__
  16 #pragma interface "prop.h"
  17 #endif
  18
  19 #include "wx/defs.h"
  20 #include "wx/string.h"
  21 #include "wx/hash.h"
  22 #include "wx/dialog.h"
  23 #include "wx/frame.h"
  24 #include "wx/button.h"
  25 #include "wx/listbox.h"
  26 #include "wx/textctrl.h"
  27 #include "wx/gdicmn.h"
  28 #include "wx/layout.h"
  29
  30 class wxWindow;
  31 class wxProperty;
  32 class wxPropertyValue;
  33 class wxPropertySheet;
  34 class wxPropertyView;
  35 class wxPropertyValidator;
  36 class wxPropertyValidatorRegistry;
  37
  38 #define wxPROPERTY_VERSION 2.0
  39
  40 // A storable sheet of values
  41 class wxPropertySheet: public wxObject
  42 {
  43  DECLARE_DYNAMIC_CLASS(wxPropertySheet)
  44  public:
  45   wxPropertySheet(void);
  46   ~wxPropertySheet(void);
  47
  48   // Add a property
  49   virtual void AddProperty(wxProperty *property);
  50
  51   // Get property by name
  52   virtual wxProperty *GetProperty(wxString name);
  53
  54   // Clear all properties
  55   virtual void Clear(void);
  56
  57   virtual bool Save(ostream& str);
  58   virtual bool Load(ostream& str);
  59
  60   virtual void UpdateAllViews(wxPropertyView *thisView = NULL);
  61   inline virtual wxList& GetProperties(void) const { return (wxList&) m_properties; }
  62
  63   // Sets/clears the modified flag for each property value
  64   virtual void SetAllModified(bool flag = TRUE);
  65
  66  protected:
  67   wxObject*         m_viewedObject;
  68   wxList            m_properties;
  69   wxPropertyView*   m_propertyView;
  70
  71 };
  72
  73
  74 // Base class for property sheet views. There are currently two directly derived
  75 // classes: wxPropertyListView, and wxPropertyFormView.
  76 class wxPropertyView: public wxEvtHandler
  77 {
  78  DECLARE_DYNAMIC_CLASS(wxPropertyView)
  79  public:
  80   wxPropertyView(long flags = 0);
  81   ~wxPropertyView(void);
  82
  83   // Associates and shows the view
  84   virtual void ShowView(wxPropertySheet *WXUNUSED(propertySheet), wxWindow *WXUNUSED(panel)) {}
  85
  86   // Update this view of the viewed object, called e.g. by
  87   // the object itself.
  88   virtual bool OnUpdateView(void) {return FALSE;};
  89
  90   // Override this to do something as soon as the property changed,
  91   // if the view and validators support it.
  92   virtual void OnPropertyChanged(wxProperty *WXUNUSED(property)) {}
  93
  94   virtual void AddRegistry(wxPropertyValidatorRegistry *registry);
  95   inline virtual wxList& GetRegistryList(void) const
  96    { return (wxList&) m_validatorRegistryList; }
  97
  98   virtual wxPropertyValidator *FindPropertyValidator(wxProperty *property);
  99   inline virtual void SetPropertySheet(wxPropertySheet *sheet) { m_propertySheet = sheet; }
 100   inline virtual wxPropertySheet *GetPropertySheet(void) const { return m_propertySheet; }
 101
 102   virtual void OnOk(void) {};
 103   virtual void OnCancel(void) {};
 104   virtual void OnHelp(void) {};
 105
 106   inline virtual bool OnClose(void) { return FALSE; }
 107   inline long GetFlags(void) { return m_buttonFlags; }
 108
 109  protected:
 110   long                  m_buttonFlags;
 111   wxPropertySheet*      m_propertySheet;
 112   wxProperty*           m_currentProperty;
 113   wxList                m_validatorRegistryList;
 114   wxPropertyValidator*  m_currentValidator;
 115 };
 116
 117
 118 class wxPropertyValidator: public wxEvtHandler
 119 {
 120   DECLARE_DYNAMIC_CLASS(wxPropertyValidator)
 121  public:
 122   wxPropertyValidator(long flags = 0);
 123   ~wxPropertyValidator(void);
 124
 125   inline long GetFlags(void) const { return m_validatorFlags; }
 126   inline void SetValidatorProperty(wxProperty *prop) { m_validatorProperty = prop; }
 127   inline wxProperty *GetValidatorProperty(void) const { return m_validatorProperty; }
 128
 129   virtual bool StringToFloat (char *s, float *number);
 130   virtual bool StringToDouble (char *s, double *number);
 131   virtual bool StringToInt (char *s, int *number);
 132   virtual bool StringToLong (char *s, long *number);
 133   virtual char *FloatToString (float number);
 134   virtual char *DoubleToString (double number);
 135   virtual char *IntToString (int number);
 136   virtual char *LongToString (long number);
 137
 138  protected:
 139   long          m_validatorFlags;
 140   wxProperty*   m_validatorProperty;
 141 };
 142
 143
 144 // extern wxPropertyValidator *wxDefaultPropertyValidator;
 145
 146 class wxPropertyValidatorRegistry: public wxHashTable
 147 {
 148   DECLARE_DYNAMIC_CLASS(wxPropertyValidatorRegistry)
 149  public:
 150   wxPropertyValidatorRegistry(void);
 151   ~wxPropertyValidatorRegistry(void);
 152
 153   virtual void RegisterValidator(const wxString& roleName, wxPropertyValidator *validator);
 154   virtual wxPropertyValidator *GetValidator(const wxString& roleName);
 155   void ClearRegistry(void);
 156 };
 157
 158 /*
 159  * Property value class
 160  */
 161
 162 typedef enum {
 163     wxPropertyValueNull,
 164     wxPropertyValueInteger,
 165     wxPropertyValueReal,
 166     wxPropertyValuebool,
 167     wxPropertyValueString,
 168     wxPropertyValueList,
 169     wxPropertyValueIntegerPtr,
 170     wxPropertyValueRealPtr,
 171     wxPropertyValueboolPtr,
 172     wxPropertyValueStringPtr
 173 } wxPropertyValueType;
 174
 175 class wxPropertyValue: public wxObject
 176 {
 177   DECLARE_DYNAMIC_CLASS(wxPropertyValue)
 178
 179   wxPropertyValue(void);                       // Unknown type
 180   wxPropertyValue(const wxPropertyValue& copyFrom);  // Copy constructor
 181   wxPropertyValue(const char *val);
 182   wxPropertyValue(const wxString& val);
 183   wxPropertyValue(long val);
 184   wxPropertyValue(bool val);
 185   wxPropertyValue(float val);
 186   wxPropertyValue(double the_real);
 187   wxPropertyValue(wxList *val);
 188   wxPropertyValue(wxStringList *val);
 189   // Pointer versions
 190   wxPropertyValue(char **val);
 191   wxPropertyValue(long *val);
 192   wxPropertyValue(bool *val);
 193   wxPropertyValue(float *val);
 194
 195   ~wxPropertyValue(void);
 196
 197   virtual inline wxPropertyValueType Type(void) const { return m_type; }
 198   virtual inline void SetType(wxPropertyValueType typ) { m_type = typ; }
 199   virtual long IntegerValue(void) const;
 200   virtual float RealValue(void) const;
 201   virtual bool BoolValue(void) const;
 202   virtual char *StringValue(void) const;
 203   virtual long *IntegerValuePtr(void) const;
 204   virtual float *RealValuePtr(void) const;
 205   virtual bool *BoolValuePtr(void) const;
 206   virtual char **StringValuePtr(void) const;
 207
 208   // Get nth arg of clause (starting from 1)
 209   virtual wxPropertyValue *Arg(wxPropertyValueType type, int arg) const;
 210
 211   // Return nth argument of a list expression (starting from zero)
 212   virtual wxPropertyValue *Nth(int arg) const;
 213   // Returns the number of elements in a list expression
 214   virtual int Number(void) const;
 215
 216   virtual wxPropertyValue *NewCopy(void) const;
 217   virtual void Copy(wxPropertyValue& copyFrom);
 218
 219   virtual void WritePropertyClause(ostream& stream);  // Write this expression as a top-level clause
 220   virtual void WritePropertyType(ostream& stream);    // Write as any other subexpression
 221
 222   // Append an expression to a list
 223   virtual void Append(wxPropertyValue *expr);
 224   // Insert at beginning of list
 225   virtual void Insert(wxPropertyValue *expr);
 226
 227   // Get first expr in list
 228   virtual inline wxPropertyValue *GetFirst(void) const
 229     { return ((m_type == wxPropertyValueList) ? m_value.first : (wxPropertyValue*)NULL); }
 230
 231   // Get next expr if this is a node in a list
 232   virtual inline wxPropertyValue *GetNext(void) const
 233     { return m_next; }
 234
 235   // Get last expr in list
 236   virtual inline wxPropertyValue *GetLast(void) const
 237     { return ((m_type == wxPropertyValueList) ? m_last : (wxPropertyValue*)NULL); }
 238
 239   // Delete this node from the list
 240   virtual void Delete(wxPropertyValue *node);
 241
 242   // Clear list
 243   virtual void ClearList(void);
 244
 245   virtual inline void SetClientData(wxObject *data) { m_clientData = data; }
 246   virtual inline wxObject *GetClientData(void) { return m_clientData; }
 247
 248   virtual wxString GetStringRepresentation(void);
 249
 250   inline void SetModified(bool flag = TRUE) { m_modifiedFlag = flag; }
 251   inline bool GetModified(void) { return m_modifiedFlag; }
 252
 253   // Operators
 254   void operator=(const wxPropertyValue& val);
 255 //  void operator=(const char *val);
 256   void operator=(const wxString& val);
 257   void operator=(const long val);
 258   void operator=(const bool val);
 259   void operator=(const float val);
 260   void operator=(const char **val);
 261   void operator=(const long *val);
 262   void operator=(const bool *val);
 263   void operator=(const float *val);
 264
 265  public:
 266   wxObject*             m_clientData;
 267   wxPropertyValueType   m_type;
 268   bool                  m_modifiedFlag;
 269
 270   union {
 271     long integer; // Also doubles as bool
 272     char *string;
 273     float real;
 274     long *integerPtr;
 275     bool *boolPtr;
 276     char **stringPtr;
 277     float *realPtr;
 278     wxPropertyValue *first;  // If is a list expr, points to the first node
 279     } m_value;
 280
 281   wxPropertyValue*      m_next;     // If this is a node in a list, points to the next node
 282   wxPropertyValue*      m_last;     // If is a list expr, points to the last node
 283
 284 };
 285
 286 /*
 287  * Property class: contains a name and a value.
 288  */
 289
 290 class wxProperty: public wxObject
 291 {
 292   DECLARE_DYNAMIC_CLASS(wxProperty)
 293  protected:
 294   bool                  m_enabled;
 295  public:
 296   wxPropertyValue       m_value;
 297   wxString              m_name;
 298   wxString              m_propertyRole;
 299   wxPropertyValidator*  m_propertyValidator;
 300   wxWindow*             m_propertyWindow; // Usually a panel item, if anything
 301
 302   wxProperty(void);
 303   wxProperty(wxProperty& copyFrom);
 304   wxProperty(wxString name, wxString role, wxPropertyValidator *ed = NULL);
 305   wxProperty(wxString name, const wxPropertyValue& val, wxString role, wxPropertyValidator *ed = NULL);
 306   ~wxProperty(void);
 307
 308   virtual wxPropertyValue& GetValue(void) const;
 309   virtual wxPropertyValidator *GetValidator(void) const;
 310   virtual wxString& GetName(void) const;
 311   virtual wxString& GetRole(void) const;
 312   virtual void SetValue(const wxPropertyValue& val);
 313   virtual void SetValidator(wxPropertyValidator *v);
 314   virtual void SetName(wxString& nm);
 315   virtual void SetRole(wxString& role);
 316   void operator=(const wxPropertyValue& val);
 317   virtual inline void SetWindow(wxWindow *win) { m_propertyWindow = win; }
 318   virtual inline wxWindow *GetWindow(void) const { return m_propertyWindow; }
 319
 320   inline void Enable(bool en) { m_enabled = en; }
 321   inline bool IsEnabled(void) const { return m_enabled; }
 322 };
 323
 324 #endif
 325   // _WX_PROP_H_