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 WXDLLEXPORT wxPropertySheet: public wxObject
  42 {
  43  DECLARE_DYNAMIC_CLASS(wxPropertySheet)
  44  public:
  45   wxPropertySheet(const wxString& name = "");
  46   ~wxPropertySheet(void);
  47
  48   // Set the name of the sheet
  49   inline virtual void SetName(const wxString& name) { m_name=name; }
  50   inline virtual wxString GetName() const { return m_name; }
  51   // Does this sheet contain a property with this name
  52   virtual bool HasProperty(const wxString& name) const;
  53
  54   // Set property name to value
  55   virtual bool SetProperty(const wxString& name, const wxPropertyValue& value);
  56
  57   // Remove property from sheet by name, deleting it
  58   virtual void RemoveProperty(const wxString& name);
  59
  60   // Get the name of the sheet
  61   // Add a property
  62   virtual void AddProperty(wxProperty *property);
  63
  64   // Get property by name
  65   virtual wxProperty *GetProperty(const wxString& name) const;
  66
  67   // Clear all properties
  68   virtual void Clear(void);
  69
  70   virtual bool Save(ostream& str);
  71   virtual bool Load(ostream& str);
  72
  73   virtual void UpdateAllViews(wxPropertyView *thisView = NULL);
  74   inline virtual wxList& GetProperties(void) const { return (wxList&) m_properties; }
  75
  76   // Sets/clears the modified flag for each property value
  77   virtual void SetAllModified(bool flag = TRUE);
  78
  79  protected:
  80   wxObject*         m_viewedObject;
  81   wxList            m_properties;
  82   wxPropertyView*   m_propertyView;
  83   wxString                      m_name;
  84 };
  85
  86
  87 // Base class for property sheet views. There are currently two directly derived
  88 // classes: wxPropertyListView, and wxPropertyFormView.
  89 class WXDLLEXPORT wxPropertyView: public wxEvtHandler
  90 {
  91  DECLARE_DYNAMIC_CLASS(wxPropertyView)
  92  public:
  93   wxPropertyView(long flags = 0);
  94   ~wxPropertyView(void);
  95
  96   // Associates and shows the view
  97   virtual void ShowView(wxPropertySheet *WXUNUSED(propertySheet), wxWindow *WXUNUSED(panel)) {}
  98
  99   // Update this view of the viewed object, called e.g. by
 100   // the object itself.
 101   virtual bool OnUpdateView(void) {return FALSE;};
 102
 103   // Override this to do something as soon as the property changed,
 104   // if the view and validators support it.
 105   virtual void OnPropertyChanged(wxProperty *WXUNUSED(property)) {}
 106
 107   virtual void AddRegistry(wxPropertyValidatorRegistry *registry);
 108   inline virtual wxList& GetRegistryList(void) const
 109    { return (wxList&) m_validatorRegistryList; }
 110
 111   virtual wxPropertyValidator *FindPropertyValidator(wxProperty *property);
 112   inline virtual void SetPropertySheet(wxPropertySheet *sheet) { m_propertySheet = sheet; }
 113   inline virtual wxPropertySheet *GetPropertySheet(void) const { return m_propertySheet; }
 114
 115 /*
 116   virtual void OnOk(void) {};
 117   virtual void OnCancel(void) {};
 118   virtual void OnHelp(void) {};
 119 */
 120
 121   inline virtual bool OnClose(void) { return FALSE; }
 122   inline long GetFlags(void) { return m_buttonFlags; }
 123
 124  protected:
 125   long                  m_buttonFlags;
 126   wxPropertySheet*      m_propertySheet;
 127   wxProperty*           m_currentProperty;
 128   wxList                m_validatorRegistryList;
 129   wxPropertyValidator*  m_currentValidator;
 130 };
 131
 132
 133 class WXDLLEXPORT wxPropertyValidator: public wxEvtHandler
 134 {
 135   DECLARE_DYNAMIC_CLASS(wxPropertyValidator)
 136  public:
 137   wxPropertyValidator(long flags = 0);
 138   ~wxPropertyValidator(void);
 139
 140   inline long GetFlags(void) const { return m_validatorFlags; }
 141   inline void SetValidatorProperty(wxProperty *prop) { m_validatorProperty = prop; }
 142   inline wxProperty *GetValidatorProperty(void) const { return m_validatorProperty; }
 143
 144   virtual bool StringToFloat (wxChar *s, float *number);
 145   virtual bool StringToDouble (wxChar *s, double *number);
 146   virtual bool StringToInt (wxChar *s, int *number);
 147   virtual bool StringToLong (wxChar *s, long *number);
 148   virtual wxChar *FloatToString (float number);
 149   virtual wxChar *DoubleToString (double number);
 150   virtual wxChar *IntToString (int number);
 151   virtual wxChar *LongToString (long number);
 152
 153  protected:
 154   long          m_validatorFlags;
 155   wxProperty*   m_validatorProperty;
 156 };
 157
 158
 159 // extern wxPropertyValidator *wxDefaultPropertyValidator;
 160
 161 class WXDLLEXPORT wxPropertyValidatorRegistry: public wxHashTable
 162 {
 163   DECLARE_DYNAMIC_CLASS(wxPropertyValidatorRegistry)
 164  public:
 165   wxPropertyValidatorRegistry(void);
 166   ~wxPropertyValidatorRegistry(void);
 167
 168   virtual void RegisterValidator(const wxString& roleName, wxPropertyValidator *validator);
 169   virtual wxPropertyValidator *GetValidator(const wxString& roleName);
 170   void ClearRegistry(void);
 171 };
 172
 173 /*
 174  * Property value class
 175  */
 176
 177 typedef enum {
 178     wxPropertyValueNull,
 179     wxPropertyValueInteger,
 180     wxPropertyValueReal,
 181     wxPropertyValuebool,
 182     wxPropertyValueString,
 183     wxPropertyValueList,
 184     wxPropertyValueIntegerPtr,
 185     wxPropertyValueRealPtr,
 186     wxPropertyValueboolPtr,
 187     wxPropertyValueStringPtr
 188 } wxPropertyValueType;
 189
 190 class WXDLLEXPORT wxPropertyValue: public wxObject
 191 {
 192   DECLARE_DYNAMIC_CLASS(wxPropertyValue)
 193
 194   wxPropertyValue(void);                       // Unknown type
 195   wxPropertyValue(const wxPropertyValue& copyFrom);  // Copy constructor
 196   wxPropertyValue(const wxChar *val);
 197   wxPropertyValue(const wxString& val);
 198   wxPropertyValue(long val);
 199   wxPropertyValue(bool val);
 200   wxPropertyValue(float val);
 201   wxPropertyValue(double the_real);
 202   wxPropertyValue(wxList *val);
 203   wxPropertyValue(wxStringList *val);
 204   // Pointer versions
 205   wxPropertyValue(wxChar **val);
 206   wxPropertyValue(long *val);
 207   wxPropertyValue(bool *val);
 208   wxPropertyValue(float *val);
 209
 210   ~wxPropertyValue(void);
 211
 212   virtual inline wxPropertyValueType Type(void) const { return m_type; }
 213   virtual inline void SetType(wxPropertyValueType typ) { m_type = typ; }
 214   virtual long IntegerValue(void) const;
 215   virtual float RealValue(void) const;
 216   virtual bool BoolValue(void) const;
 217   virtual wxChar *StringValue(void) const;
 218   virtual long *IntegerValuePtr(void) const;
 219   virtual float *RealValuePtr(void) const;
 220   virtual bool *BoolValuePtr(void) const;
 221   virtual wxChar **StringValuePtr(void) const;
 222
 223   // Get nth arg of clause (starting from 1)
 224   virtual wxPropertyValue *Arg(wxPropertyValueType type, int arg) const;
 225
 226   // Return nth argument of a list expression (starting from zero)
 227   virtual wxPropertyValue *Nth(int arg) const;
 228   // Returns the number of elements in a list expression
 229   virtual int Number(void) const;
 230
 231   virtual wxPropertyValue *NewCopy(void) const;
 232   virtual void Copy(wxPropertyValue& copyFrom);
 233
 234   virtual void WritePropertyClause(ostream& stream);  // Write this expression as a top-level clause
 235   virtual void WritePropertyType(ostream& stream);    // Write as any other subexpression
 236
 237   // Append an expression to a list
 238   virtual void Append(wxPropertyValue *expr);
 239   // Insert at beginning of list
 240   virtual void Insert(wxPropertyValue *expr);
 241
 242   // Get first expr in list
 243   virtual inline wxPropertyValue *GetFirst(void) const
 244     { return ((m_type == wxPropertyValueList) ? m_value.first : (wxPropertyValue*)NULL); }
 245
 246   // Get next expr if this is a node in a list
 247   virtual inline wxPropertyValue *GetNext(void) const
 248     { return m_next; }
 249
 250   // Get last expr in list
 251   virtual inline wxPropertyValue *GetLast(void) const
 252     { return ((m_type == wxPropertyValueList) ? m_last : (wxPropertyValue*)NULL); }
 253
 254   // Delete this node from the list
 255   virtual void Delete(wxPropertyValue *node);
 256
 257   // Clear list
 258   virtual void ClearList(void);
 259
 260   virtual inline void SetClientData(wxObject *data) { m_clientData = data; }
 261   virtual inline wxObject *GetClientData(void) { return m_clientData; }
 262
 263   virtual wxString GetStringRepresentation(void);
 264
 265   inline void SetModified(bool flag = TRUE) { m_modifiedFlag = flag; }
 266   inline bool GetModified(void) { return m_modifiedFlag; }
 267
 268   // Operators
 269   void operator=(const wxPropertyValue& val);
 270 //  void operator=(const char *val);
 271   void operator=(const wxString& val);
 272   void operator=(const long val);
 273   void operator=(const bool val);
 274   void operator=(const float val);
 275   void operator=(const wxChar **val);
 276   void operator=(const long *val);
 277   void operator=(const bool *val);
 278   void operator=(const float *val);
 279
 280  public:
 281   wxObject*             m_clientData;
 282   wxPropertyValueType   m_type;
 283   bool                  m_modifiedFlag;
 284
 285   union {
 286     long integer; // Also doubles as bool
 287     wxChar *string;
 288     float real;
 289     long *integerPtr;
 290     bool *boolPtr;
 291     wxChar **stringPtr;
 292     float *realPtr;
 293     wxPropertyValue *first;  // If is a list expr, points to the first node
 294     } m_value;
 295
 296   wxPropertyValue*      m_next;     // If this is a node in a list, points to the next node
 297   wxPropertyValue*      m_last;     // If is a list expr, points to the last node
 298
 299 };
 300
 301 /*
 302  * Property class: contains a name and a value.
 303  */
 304
 305 class WXDLLEXPORT wxProperty: public wxObject
 306 {
 307   DECLARE_DYNAMIC_CLASS(wxProperty)
 308  protected:
 309   bool                  m_enabled;
 310  public:
 311   wxPropertyValue       m_value;
 312   wxString              m_name;
 313   wxString              m_propertyRole;
 314   wxPropertyValidator*  m_propertyValidator;
 315   wxWindow*             m_propertyWindow; // Usually a panel item, if anything
 316
 317   wxProperty(void);
 318   wxProperty(wxProperty& copyFrom);
 319   wxProperty(wxString name, wxString role, wxPropertyValidator *ed = NULL);
 320   wxProperty(wxString name, const wxPropertyValue& val, wxString role, wxPropertyValidator *ed = NULL);
 321   ~wxProperty(void);
 322
 323   virtual wxPropertyValue& GetValue(void) const;
 324   virtual wxPropertyValidator *GetValidator(void) const;
 325   virtual wxString& GetName(void) const;
 326   virtual wxString& GetRole(void) const;
 327   virtual void SetValue(const wxPropertyValue& val);
 328   virtual void SetValidator(wxPropertyValidator *v);
 329   virtual void SetName(wxString& nm);
 330   virtual void SetRole(wxString& role);
 331   void operator=(const wxPropertyValue& val);
 332   virtual inline void SetWindow(wxWindow *win) { m_propertyWindow = win; }
 333   virtual inline wxWindow *GetWindow(void) const { return m_propertyWindow; }
 334
 335   inline void Enable(bool en) { m_enabled = en; }
 336   inline bool IsEnabled(void) const { return m_enabled; }
 337 };
 338
 339 #endif
 340   // _WX_PROP_H_