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(wxString name = "");
  46   ~wxPropertySheet(void);
  47
  48   // Set the name of the sheet
  49   inline virtual void SetName(wxString name) { m_name=name; }
  50   inline virtual wxString GetName() { return m_name; }
  51   // Does this sheet contain a property with this name
  52   virtual bool HasProperty(wxString name);
  53
  54   // Set property name to value
  55   virtual bool SetProperty(const wxString name, wxPropertyValue value);
  56
  57   // Remove property from sheet by name, deleting it
  58   virtual void RemoveProperty(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(wxString name);
  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   virtual void OnOk(void) {};
 116   virtual void OnCancel(void) {};
 117   virtual void OnHelp(void) {};
 118
 119   inline virtual bool OnClose(void) { return FALSE; }
 120   inline long GetFlags(void) { return m_buttonFlags; }
 121
 122  protected:
 123   long                  m_buttonFlags;
 124   wxPropertySheet*      m_propertySheet;
 125   wxProperty*           m_currentProperty;
 126   wxList                m_validatorRegistryList;
 127   wxPropertyValidator*  m_currentValidator;
 128 };
 129
 130
 131 class WXDLLEXPORT wxPropertyValidator: public wxEvtHandler
 132 {
 133   DECLARE_DYNAMIC_CLASS(wxPropertyValidator)
 134  public:
 135   wxPropertyValidator(long flags = 0);
 136   ~wxPropertyValidator(void);
 137
 138   inline long GetFlags(void) const { return m_validatorFlags; }
 139   inline void SetValidatorProperty(wxProperty *prop) { m_validatorProperty = prop; }
 140   inline wxProperty *GetValidatorProperty(void) const { return m_validatorProperty; }
 141
 142   virtual bool StringToFloat (char *s, float *number);
 143   virtual bool StringToDouble (char *s, double *number);
 144   virtual bool StringToInt (char *s, int *number);
 145   virtual bool StringToLong (char *s, long *number);
 146   virtual char *FloatToString (float number);
 147   virtual char *DoubleToString (double number);
 148   virtual char *IntToString (int number);
 149   virtual char *LongToString (long number);
 150
 151  protected:
 152   long          m_validatorFlags;
 153   wxProperty*   m_validatorProperty;
 154 };
 155
 156
 157 // extern wxPropertyValidator *wxDefaultPropertyValidator;
 158
 159 class WXDLLEXPORT wxPropertyValidatorRegistry: public wxHashTable
 160 {
 161   DECLARE_DYNAMIC_CLASS(wxPropertyValidatorRegistry)
 162  public:
 163   wxPropertyValidatorRegistry(void);
 164   ~wxPropertyValidatorRegistry(void);
 165
 166   virtual void RegisterValidator(const wxString& roleName, wxPropertyValidator *validator);
 167   virtual wxPropertyValidator *GetValidator(const wxString& roleName);
 168   void ClearRegistry(void);
 169 };
 170
 171 /*
 172  * Property value class
 173  */
 174
 175 typedef enum {
 176     wxPropertyValueNull,
 177     wxPropertyValueInteger,
 178     wxPropertyValueReal,
 179     wxPropertyValuebool,
 180     wxPropertyValueString,
 181     wxPropertyValueList,
 182     wxPropertyValueIntegerPtr,
 183     wxPropertyValueRealPtr,
 184     wxPropertyValueboolPtr,
 185     wxPropertyValueStringPtr
 186 } wxPropertyValueType;
 187
 188 class WXDLLEXPORT wxPropertyValue: public wxObject
 189 {
 190   DECLARE_DYNAMIC_CLASS(wxPropertyValue)
 191
 192   wxPropertyValue(void);                       // Unknown type
 193   wxPropertyValue(const wxPropertyValue& copyFrom);  // Copy constructor
 194   wxPropertyValue(const char *val);
 195   wxPropertyValue(const wxString& val);
 196   wxPropertyValue(long val);
 197   wxPropertyValue(bool val);
 198   wxPropertyValue(float val);
 199   wxPropertyValue(double the_real);
 200   wxPropertyValue(wxList *val);
 201   wxPropertyValue(wxStringList *val);
 202   // Pointer versions
 203   wxPropertyValue(char **val);
 204   wxPropertyValue(long *val);
 205   wxPropertyValue(bool *val);
 206   wxPropertyValue(float *val);
 207
 208   ~wxPropertyValue(void);
 209
 210   virtual inline wxPropertyValueType Type(void) const { return m_type; }
 211   virtual inline void SetType(wxPropertyValueType typ) { m_type = typ; }
 212   virtual long IntegerValue(void) const;
 213   virtual float RealValue(void) const;
 214   virtual bool BoolValue(void) const;
 215   virtual char *StringValue(void) const;
 216   virtual long *IntegerValuePtr(void) const;
 217   virtual float *RealValuePtr(void) const;
 218   virtual bool *BoolValuePtr(void) const;
 219   virtual char **StringValuePtr(void) const;
 220
 221   // Get nth arg of clause (starting from 1)
 222   virtual wxPropertyValue *Arg(wxPropertyValueType type, int arg) const;
 223
 224   // Return nth argument of a list expression (starting from zero)
 225   virtual wxPropertyValue *Nth(int arg) const;
 226   // Returns the number of elements in a list expression
 227   virtual int Number(void) const;
 228
 229   virtual wxPropertyValue *NewCopy(void) const;
 230   virtual void Copy(wxPropertyValue& copyFrom);
 231
 232   virtual void WritePropertyClause(ostream& stream);  // Write this expression as a top-level clause
 233   virtual void WritePropertyType(ostream& stream);    // Write as any other subexpression
 234
 235   // Append an expression to a list
 236   virtual void Append(wxPropertyValue *expr);
 237   // Insert at beginning of list
 238   virtual void Insert(wxPropertyValue *expr);
 239
 240   // Get first expr in list
 241   virtual inline wxPropertyValue *GetFirst(void) const
 242     { return ((m_type == wxPropertyValueList) ? m_value.first : (wxPropertyValue*)NULL); }
 243
 244   // Get next expr if this is a node in a list
 245   virtual inline wxPropertyValue *GetNext(void) const
 246     { return m_next; }
 247
 248   // Get last expr in list
 249   virtual inline wxPropertyValue *GetLast(void) const
 250     { return ((m_type == wxPropertyValueList) ? m_last : (wxPropertyValue*)NULL); }
 251
 252   // Delete this node from the list
 253   virtual void Delete(wxPropertyValue *node);
 254
 255   // Clear list
 256   virtual void ClearList(void);
 257
 258   virtual inline void SetClientData(wxObject *data) { m_clientData = data; }
 259   virtual inline wxObject *GetClientData(void) { return m_clientData; }
 260
 261   virtual wxString GetStringRepresentation(void);
 262
 263   inline void SetModified(bool flag = TRUE) { m_modifiedFlag = flag; }
 264   inline bool GetModified(void) { return m_modifiedFlag; }
 265
 266   // Operators
 267   void operator=(const wxPropertyValue& val);
 268 //  void operator=(const char *val);
 269   void operator=(const wxString& val);
 270   void operator=(const long val);
 271   void operator=(const bool val);
 272   void operator=(const float val);
 273   void operator=(const char **val);
 274   void operator=(const long *val);
 275   void operator=(const bool *val);
 276   void operator=(const float *val);
 277
 278  public:
 279   wxObject*             m_clientData;
 280   wxPropertyValueType   m_type;
 281   bool                  m_modifiedFlag;
 282
 283   union {
 284     long integer; // Also doubles as bool
 285     char *string;
 286     float real;
 287     long *integerPtr;
 288     bool *boolPtr;
 289     char **stringPtr;
 290     float *realPtr;
 291     wxPropertyValue *first;  // If is a list expr, points to the first node
 292     } m_value;
 293
 294   wxPropertyValue*      m_next;     // If this is a node in a list, points to the next node
 295   wxPropertyValue*      m_last;     // If is a list expr, points to the last node
 296
 297 };
 298
 299 /*
 300  * Property class: contains a name and a value.
 301  */
 302
 303 class WXDLLEXPORT wxProperty: public wxObject
 304 {
 305   DECLARE_DYNAMIC_CLASS(wxProperty)
 306  protected:
 307   bool                  m_enabled;
 308  public:
 309   wxPropertyValue       m_value;
 310   wxString              m_name;
 311   wxString              m_propertyRole;
 312   wxPropertyValidator*  m_propertyValidator;
 313   wxWindow*             m_propertyWindow; // Usually a panel item, if anything
 314
 315   wxProperty(void);
 316   wxProperty(wxProperty& copyFrom);
 317   wxProperty(wxString name, wxString role, wxPropertyValidator *ed = NULL);
 318   wxProperty(wxString name, const wxPropertyValue& val, wxString role, wxPropertyValidator *ed = NULL);
 319   ~wxProperty(void);
 320
 321   virtual wxPropertyValue& GetValue(void) const;
 322   virtual wxPropertyValidator *GetValidator(void) const;
 323   virtual wxString& GetName(void) const;
 324   virtual wxString& GetRole(void) const;
 325   virtual void SetValue(const wxPropertyValue& val);
 326   virtual void SetValidator(wxPropertyValidator *v);
 327   virtual void SetName(wxString& nm);
 328   virtual void SetRole(wxString& role);
 329   void operator=(const wxPropertyValue& val);
 330   virtual inline void SetWindow(wxWindow *win) { m_propertyWindow = win; }
 331   virtual inline wxWindow *GetWindow(void) const { return m_propertyWindow; }
 332
 333   inline void Enable(bool en) { m_enabled = en; }
 334   inline bool IsEnabled(void) const { return m_enabled; }
 335 };
 336
 337 #endif
 338   // _WX_PROP_H_