/[dtapublic]/projs/trunk/shared_source/c_tk_base_7_5_w_mods/tkcolor.h
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revision 69 by dashley, Sat Nov 5 10:54:17 2016 UTC revision 71 by dashley, Sat Nov 5 11:07:06 2016 UTC
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1  /* $Header$ */  /* $Header$ */
2    
3  /*  /*
4   * tkColor.h --   * tkColor.h --
5   *   *
6   *      Declarations of data types and functions used by the   *      Declarations of data types and functions used by the
7   *      Tk color module.   *      Tk color module.
8   *   *
9   * Copyright (c) 1996-1997 by Sun Microsystems, Inc.   * Copyright (c) 1996-1997 by Sun Microsystems, Inc.
10   *   *
11   * See the file "license.terms" for information on usage and redistribution   * See the file "license.terms" for information on usage and redistribution
12   * of this file, and for a DISCLAIMER OF ALL WARRANTIES.   * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
13   *   *
14   * RCS: @(#) $Id: tkcolor.h,v 1.1.1.1 2001/06/13 04:58:33 dtashley Exp $   * RCS: @(#) $Id: tkcolor.h,v 1.1.1.1 2001/06/13 04:58:33 dtashley Exp $
15   */   */
16    
17  #ifndef _TKCOLOR  #ifndef _TKCOLOR
18  #define _TKCOLOR  #define _TKCOLOR
19    
20  #include "tkInt.h"  #include "tkInt.h"
21    
22  #ifdef BUILD_tk  #ifdef BUILD_tk
23  # undef TCL_STORAGE_CLASS  # undef TCL_STORAGE_CLASS
24  # define TCL_STORAGE_CLASS DLLEXPORT  # define TCL_STORAGE_CLASS DLLEXPORT
25  #endif  #endif
26    
27  /*  /*
28   * One of the following data structures is used to keep track of   * One of the following data structures is used to keep track of
29   * each color that is being used by the application; typically there   * each color that is being used by the application; typically there
30   * is a colormap entry allocated for each of these colors.   * is a colormap entry allocated for each of these colors.
31   */   */
32    
33  #define TK_COLOR_BY_NAME        1  #define TK_COLOR_BY_NAME        1
34  #define TK_COLOR_BY_VALUE       2  #define TK_COLOR_BY_VALUE       2
35    
36  #define COLOR_MAGIC ((unsigned int) 0x46140277)  #define COLOR_MAGIC ((unsigned int) 0x46140277)
37    
38  typedef struct TkColor {  typedef struct TkColor {
39      XColor color;               /* Information about this color. */      XColor color;               /* Information about this color. */
40      unsigned int magic;         /* Used for quick integrity check on this      unsigned int magic;         /* Used for quick integrity check on this
41                                   * structure.   Must always have the                                   * structure.   Must always have the
42                                   * value COLOR_MAGIC. */                                   * value COLOR_MAGIC. */
43      GC gc;                      /* Simple gc with this color as foreground      GC gc;                      /* Simple gc with this color as foreground
44                                   * color and all other fields defaulted.                                   * color and all other fields defaulted.
45                                   * May be None. */                                   * May be None. */
46      Screen *screen;             /* Screen where this color is valid.  Used      Screen *screen;             /* Screen where this color is valid.  Used
47                                   * to delete it, and to find its display. */                                   * to delete it, and to find its display. */
48      Colormap colormap;          /* Colormap from which this entry was      Colormap colormap;          /* Colormap from which this entry was
49                                   * allocated. */                                   * allocated. */
50      Visual *visual;             /* Visual associated with colormap. */      Visual *visual;             /* Visual associated with colormap. */
51      int resourceRefCount;       /* Number of active uses of this color (each      int resourceRefCount;       /* Number of active uses of this color (each
52                                   * active use corresponds to a call to                                   * active use corresponds to a call to
53                                   * Tk_AllocColorFromObj or Tk_GetColor).                                   * Tk_AllocColorFromObj or Tk_GetColor).
54                                   * If this count is 0, then this TkColor                                   * If this count is 0, then this TkColor
55                                   * structure is no longer valid and it isn't                                   * structure is no longer valid and it isn't
56                                   * present in a hash table: it is being                                   * present in a hash table: it is being
57                                   * kept around only because there are objects                                   * kept around only because there are objects
58                                   * referring to it.  The structure is freed                                   * referring to it.  The structure is freed
59                                   * when resourceRefCount and objRefCount                                   * when resourceRefCount and objRefCount
60                                   * are both 0. */                                   * are both 0. */
61      int objRefCount;            /* The number of Tcl objects that reference      int objRefCount;            /* The number of Tcl objects that reference
62                                   * this structure. */                                   * this structure. */
63      int type;                   /* TK_COLOR_BY_NAME or TK_COLOR_BY_VALUE */      int type;                   /* TK_COLOR_BY_NAME or TK_COLOR_BY_VALUE */
64      Tcl_HashEntry *hashPtr;     /* Pointer to hash table entry for this      Tcl_HashEntry *hashPtr;     /* Pointer to hash table entry for this
65                                   * structure. (for use in deleting entry). */                                   * structure. (for use in deleting entry). */
66      struct TkColor *nextPtr;    /* Points to the next TkColor structure with      struct TkColor *nextPtr;    /* Points to the next TkColor structure with
67                                   * the same color name.  Colors with the                                   * the same color name.  Colors with the
68                                   * same name but different screens or                                   * same name but different screens or
69                                   * colormaps are chained together off a                                   * colormaps are chained together off a
70                                   * single entry in nameTable.  For colors in                                   * single entry in nameTable.  For colors in
71                                   * valueTable (those allocated by                                   * valueTable (those allocated by
72                                   * Tk_GetColorByValue) this field is always                                   * Tk_GetColorByValue) this field is always
73                                   * NULL. */                                   * NULL. */
74  } TkColor;  } TkColor;
75    
76  /*  /*
77   * Common APIs exported from all platform-specific implementations.   * Common APIs exported from all platform-specific implementations.
78   */   */
79    
80  #ifndef TkpFreeColor  #ifndef TkpFreeColor
81  extern void             TkpFreeColor _ANSI_ARGS_((TkColor *tkColPtr));  extern void             TkpFreeColor _ANSI_ARGS_((TkColor *tkColPtr));
82  #endif  #endif
83  extern TkColor *        TkpGetColor _ANSI_ARGS_((Tk_Window tkwin,  extern TkColor *        TkpGetColor _ANSI_ARGS_((Tk_Window tkwin,
84                              Tk_Uid name));                              Tk_Uid name));
85  extern TkColor *        TkpGetColorByValue _ANSI_ARGS_((Tk_Window tkwin,  extern TkColor *        TkpGetColorByValue _ANSI_ARGS_((Tk_Window tkwin,
86                              XColor *colorPtr));                              XColor *colorPtr));
87    
88  # undef TCL_STORAGE_CLASS  # undef TCL_STORAGE_CLASS
89  # define TCL_STORAGE_CLASS DLLIMPORT  # define TCL_STORAGE_CLASS DLLIMPORT
90    
91  #endif /* _TKCOLOR */  #endif /* _TKCOLOR */
92    
93  /* End of tkcolor.h */  /* End of tkcolor.h */
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