| /* | |
| * tk3d.h -- | |
| * | |
| * Declarations of types and functions shared by the 3d border module. | |
| * | |
| * Copyright (c) 1996-1997 by Sun Microsystems, Inc. | |
| * | |
| * See the file "license.terms" for information on usage and redistribution of | |
| * this file, and for a DISCLAIMER OF ALL WARRANTIES. | |
| */ | |
| /* | |
| * One of the following data structures is allocated for each 3-D border | |
| * currently in use. Structures of this type are indexed by borderTable, so | |
| * that a single structure can be shared for several uses. | |
| */ | |
| typedef struct TkBorder { | |
| Screen *screen; /* Screen on which the border will be used. */ | |
| Visual *visual; /* Visual for all windows and pixmaps using | |
| * the border. */ | |
| int depth; /* Number of bits per pixel of drawables where | |
| * the border will be used. */ | |
| Colormap colormap; /* Colormap out of which pixels are | |
| * allocated. */ | |
| int resourceRefCount; /* Number of active uses of this color (each | |
| * active use corresponds to a call to | |
| * Tk_Alloc3DBorderFromObj or Tk_Get3DBorder). | |
| * If this count is 0, then this structure is | |
| * no longer valid and it isn't present in | |
| * borderTable: it is being kept around only | |
| * because there are objects referring to it. | |
| * The structure is freed when objRefCount and | |
| * resourceRefCount are both 0. */ | |
| int objRefCount; /* The number of Tcl objects that reference | |
| * this structure. */ | |
| XColor *bgColorPtr; /* Background color (intensity between | |
| * lightColorPtr and darkColorPtr). */ | |
| XColor *darkColorPtr; /* Color for darker areas (must free when | |
| * deleting structure). NULL means shadows | |
| * haven't been allocated yet.*/ | |
| XColor *lightColorPtr; /* Color used for lighter areas of border | |
| * (must free this when deleting structure). | |
| * NULL means shadows haven't been allocated | |
| * yet. */ | |
| Pixmap shadow; /* Stipple pattern to use for drawing shadows | |
| * areas. Used for displays with <= 64 colors | |
| * or where colormap has filled up. */ | |
| GC bgGC; /* Used (if necessary) to draw areas in the | |
| * background color. */ | |
| GC darkGC; /* Used to draw darker parts of the border. | |
| * NULL means the shadow colors haven't been | |
| * allocated yet.*/ | |
| GC lightGC; /* Used to draw lighter parts of the border. | |
| * NULL means the shadow colors haven't been | |
| * allocated yet. */ | |
| Tcl_HashEntry *hashPtr; /* Entry in borderTable (needed in order to | |
| * delete structure). */ | |
| struct TkBorder *nextPtr; /* Points to the next TkBorder structure with | |
| * the same color name. Borders with the same | |
| * name but different screens or colormaps are | |
| * chained together off a single entry in | |
| * borderTable. */ | |
| } TkBorder; | |
| /* | |
| * Maximum intensity for a color: | |
| */ | |
| /* | |
| * Declarations for platform specific interfaces used by this module. | |
| */ | |
| MODULE_SCOPE TkBorder *TkpGetBorder(void); | |
| MODULE_SCOPE void TkpGetShadows(TkBorder *borderPtr, Tk_Window tkwin); | |
| MODULE_SCOPE void TkpFreeBorder(TkBorder *borderPtr); | |