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Diffstat (limited to 'blt/src/bltTkInt.h')
| -rw-r--r-- | blt/src/bltTkInt.h | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/blt/src/bltTkInt.h b/blt/src/bltTkInt.h new file mode 100644 index 00000000000..0609e4e5108 --- /dev/null +++ b/blt/src/bltTkInt.h @@ -0,0 +1,240 @@ +/* + * bltTkInt.h -- + * + * Contains copies of internal Tk structures. + * + * Copyright 1993-1998 Lucent Technologies, Inc. + * + * Permission to use, copy, modify, and distribute this software and + * its documentation for any purpose and without fee is hereby + * granted, provided that the above copyright notice appear in all + * copies and that both that the copyright notice and warranty + * disclaimer appear in supporting documentation, and that the names + * of Lucent Technologies any of their entities not be used in + * advertising or publicity pertaining to distribution of the software + * without specific, written prior permission. + * + * Lucent Technologies disclaims all warranties with regard to this + * software, including all implied warranties of merchantability and + * fitness. In no event shall Lucent Technologies be liable for any + * special, indirect or consequential damages or any damages + * whatsoever resulting from loss of use, data or profits, whether in + * an action of contract, negligence or other tortuous action, arising + * out of or in connection with the use or performance of this + * software. + */ + +#ifndef _BLT_TKINT_H +#define _BLT_TKINT_H + +typedef struct { + Tk_Uid family; /* Font family. The most important field. */ + int pointsize; /* Pointsize of font, 0 for default size, or + * negative number meaning pixel size. */ + int weight; /* Weight flag; see below for def'n. */ + int slant; /* Slant flag; see below for def'n. */ + int underline; /* Non-zero for underline font. */ + int overstrike; /* Non-zero for overstrike font. */ +} TkFontAttributes; + +typedef struct { + int ascent; /* From baseline to top of font. */ + int descent; /* From baseline to bottom of font. */ + int maxWidth; /* Width of widest character in font. */ + int fixed; /* Non-zero if this is a fixed-width font, + * 0 otherwise. */ +} TkFontMetrics; + + +typedef struct TkFontStruct { + /* + * Fields used and maintained exclusively by generic code. + */ +#if (TK_VERSION_NUMBER >= _VERSION(8,1,0)) + int resourceRefCount; /* Number of active uses of this font (each + * active use corresponds to a call to + * Tk_AllocFontFromTable or Tk_GetFont). + * If this count is 0, then this TkFont + * structure is no longer valid and it isn't + * present in a hash table: it is being + * kept around only because there are objects + * referring to it. The structure is freed + * when resourceRefCount and objRefCount + * are both 0. */ + int objRefCount; /* The number of Tcl objects that reference + * this structure. */ +#else + int refCount; /* Number of users of the TkFont. */ +#endif + Tcl_HashEntry *cacheHashPtr;/* Entry in font cache for this structure, + * used when deleting it. */ + Tcl_HashEntry *namedHashPtr;/* Pointer to hash table entry that + * corresponds to the named font that the + * tkfont was based on, or NULL if the tkfont + * was not based on a named font. */ +#if (TK_VERSION_NUMBER >= _VERSION(8,1,0)) + Screen *screen; /* The screen where this font is valid. */ +#endif /* TK_VERSION_NUMBER >= 8.1.0 */ + int tabWidth; /* Width of tabs in this font (pixels). */ + int underlinePos; /* Offset from baseline to origin of + * underline bar (used for drawing underlines + * on a non-underlined font). */ + int underlineHeight; /* Height of underline bar (used for drawing + * underlines on a non-underlined font). */ + + /* + * Fields in the generic font structure that are filled in by + * platform-specific code. + */ + + Font fid; /* For backwards compatibility with XGCValues + * structures. Remove when TkGCValues is + * implemented. */ + TkFontAttributes fa; /* Actual font attributes obtained when the + * the font was created, as opposed to the + * desired attributes passed in to + * TkpGetFontFromAttributes(). The desired + * metrics can be determined from the string + * that was used to create this font. */ + TkFontMetrics fm; /* Font metrics determined when font was + * created. */ +#if (TK_VERSION_NUMBER >= _VERSION(8,1,0)) + struct TkFontStruct *nextPtr; /* Points to the next TkFont structure with + * the same name. All fonts with the + * same name (but different displays) are + * chained together off a single entry in + * a hash table. */ +#endif /* TK_VERSION_NUMBER >= 8.1.0 */ +} TkFont; + +/* + * This structure is used by the Mac and Window porting layers as + * the internal representation of a clip_mask in a GC. + */ +typedef struct TkRegionStruct *TkRegion; + +typedef struct { + int type; /* One of TKP_CLIP_PIXMAP or TKP_CLIP_REGION */ + union { + Pixmap pixmap; + TkRegion region; + } value; +} TkpClipMask; + +#define TKP_CLIP_PIXMAP 0 +#define TKP_CLIP_REGION 1 + +#ifdef WIN32 +/* + * The TkWinDrawable is the internal implementation of an X Drawable (either + * a Window or a Pixmap). The following constants define the valid Drawable + * types. + */ + +#define TWD_BITMAP 1 +#define TWD_WINDOW 2 +#define TWD_WINDC 3 + +typedef struct TkWindowStruct TkWindow; + +typedef struct { + int type; + HWND handle; + TkWindow *winPtr; +} TkWinWindow; + +typedef struct { + int type; + HBITMAP handle; + Colormap colormap; + int depth; +} TkWinBitmap; + +typedef struct { + int type; + HDC hdc; +} TkWinDC; + +typedef union { + int type; + TkWinWindow window; + TkWinBitmap bitmap; + TkWinDC winDC; +} TkWinDrawable; + +/* + * The TkWinDCState is used to save the state of a device context + * so that it can be restored later. + */ + +typedef struct { + HPALETTE palette; + int bkmode; /* This field was added in Tk + * 8.3.1. Be careful that you don't + * use this structure in a context + * where its size is important. */ +} TkWinDCState; + +extern HDC TkWinGetDrawableDC(Display *display, Drawable drawable, + TkWinDCState * state); +extern HDC TkWinReleaseDrawableDC(Drawable drawable, HDC dc, + TkWinDCState * state); + +extern HWND Tk_GetHWND _ANSI_ARGS_((Window window)); + +extern HINSTANCE Tk_GetHINSTANCE _ANSI_ARGS_((void)); + +extern Window Tk_AttachHWND _ANSI_ARGS_((Tk_Window tkwin, HWND hWnd)); + +#endif /* WIN32 */ + +/* + * The Border structure used internally by the Tk_3D* routines. + * The following is a copy of it from tk3d.c. + */ + +typedef struct TkBorderStruct { + 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 refCount; /* Number of different users of + * this border. */ +#if (TK_VERSION_NUMBER >= _VERSION(8,1,0)) + int objRefCount; /* The number of Tcl objects that reference + * this structure. */ +#endif /* TK_VERSION_NUMBER >= 8.1.0 */ + XColor *bgColor; /* Background color (intensity between + * lightColorPtr and darkColorPtr). */ + XColor *darkColor; /* Color for darker areas (must free when + * deleting structure). NULL means shadows + * haven't been allocated yet.*/ + XColor *lightColor; /* 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. None means the shadow colors + * haven't been allocated yet.*/ + GC lightGC; /* Used to draw lighter parts of + * the border. None means the shadow colors + * haven't been allocated yet. */ + Tcl_HashEntry *hashPtr; /* Entry in borderTable (needed in + * order to delete structure). */ + struct TkBorderStruct *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; + +#endif /* BLT_TKINT_H */ |