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Diffstat (limited to 'tk8.6/generic/tk.h')
| -rw-r--r-- | tk8.6/generic/tk.h | 1619 |
1 files changed, 1619 insertions, 0 deletions
diff --git a/tk8.6/generic/tk.h b/tk8.6/generic/tk.h new file mode 100644 index 0000000..69a0858 --- /dev/null +++ b/tk8.6/generic/tk.h @@ -0,0 +1,1619 @@ +/* + * tk.h -- + * + * Declarations for Tk-related things that are visible outside of the Tk + * module itself. + * + * Copyright (c) 1989-1994 The Regents of the University of California. + * Copyright (c) 1994 The Australian National University. + * Copyright (c) 1994-1998 Sun Microsystems, Inc. + * Copyright (c) 1998-2000 Ajuba Solutions. + * + * See the file "license.terms" for information on usage and redistribution of + * this file, and for a DISCLAIMER OF ALL WARRANTIES. + */ + +#ifndef _TK +#define _TK + +#include <tcl.h> +#if (TCL_MAJOR_VERSION != 8) || (TCL_MINOR_VERSION < 6) +# error Tk 8.6 must be compiled with tcl.h from Tcl 8.6 or better +#endif + +#ifndef CONST84 +# define CONST84 const +# define CONST84_RETURN const +#endif +#ifndef CONST86 +# define CONST86 CONST84 +#endif +#ifndef EXTERN +# define EXTERN extern TCL_STORAGE_CLASS +#endif + +/* + * Utility macros: STRINGIFY takes an argument and wraps it in "" (double + * quotation marks), JOIN joins two arguments. + */ + +#ifndef STRINGIFY +# define STRINGIFY(x) STRINGIFY1(x) +# define STRINGIFY1(x) #x +#endif +#ifndef JOIN +# define JOIN(a,b) JOIN1(a,b) +# define JOIN1(a,b) a##b +#endif + +/* + * For C++ compilers, use extern "C" + */ + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * When version numbers change here, you must also go into the following files + * and update the version numbers: + * + * library/tk.tcl (1 LOC patch) + * unix/configure.in (2 LOC Major, 2 LOC minor, 1 LOC patch) + * win/configure.in (as above) + * README (sections 0 and 1) + * macosx/Tk-Common.xcconfig (not patchlevel) 1 LOC + * win/README (not patchlevel) + * unix/README (not patchlevel) + * unix/tk.spec (1 LOC patch) + * win/tcl.m4 (not patchlevel) + * + * You may also need to update some of these files when the numbers change for + * the version of Tcl that this release of Tk is compiled against. + */ + +#define TK_MAJOR_VERSION 8 +#define TK_MINOR_VERSION 6 +#define TK_RELEASE_LEVEL TCL_FINAL_RELEASE +#define TK_RELEASE_SERIAL 6 + +#define TK_VERSION "8.6" +#define TK_PATCH_LEVEL "8.6.6" + +/* + * A special definition used to allow this header file to be included from + * windows or mac resource files so that they can obtain version information. + * RC_INVOKED is defined by default by the windows RC tool and manually set + * for macintosh. + * + * Resource compilers don't like all the C stuff, like typedefs and procedure + * declarations, that occur below, so block them out. + */ + +#ifndef RC_INVOKED + +#ifndef _XLIB_H +# include <X11/Xlib.h> +# ifdef MAC_OSX_TK +# include <X11/X.h> +# endif +#endif +#ifdef __STDC__ +# include <stddef.h> +#endif + +#ifdef BUILD_tk +#undef TCL_STORAGE_CLASS +#define TCL_STORAGE_CLASS DLLEXPORT +#endif + +/* + *---------------------------------------------------------------------- + * + * Decide whether or not to use input methods. + */ + +#ifdef XNQueryInputStyle +#define TK_USE_INPUT_METHODS +#endif + +/* + * Dummy types that are used by clients: + */ + +typedef struct Tk_BindingTable_ *Tk_BindingTable; +typedef struct Tk_Canvas_ *Tk_Canvas; +typedef struct Tk_Cursor_ *Tk_Cursor; +typedef struct Tk_ErrorHandler_ *Tk_ErrorHandler; +typedef struct Tk_Font_ *Tk_Font; +typedef struct Tk_Image__ *Tk_Image; +typedef struct Tk_ImageMaster_ *Tk_ImageMaster; +typedef struct Tk_OptionTable_ *Tk_OptionTable; +typedef struct Tk_PostscriptInfo_ *Tk_PostscriptInfo; +typedef struct Tk_TextLayout_ *Tk_TextLayout; +typedef struct Tk_Window_ *Tk_Window; +typedef struct Tk_3DBorder_ *Tk_3DBorder; +typedef struct Tk_Style_ *Tk_Style; +typedef struct Tk_StyleEngine_ *Tk_StyleEngine; +typedef struct Tk_StyledElement_ *Tk_StyledElement; + +/* + * Additional types exported to clients. + */ + +typedef const char *Tk_Uid; + +/* + *---------------------------------------------------------------------- + * + * The enum below defines the valid types for Tk configuration options as + * implemented by Tk_InitOptions, Tk_SetOptions, etc. + */ + +typedef enum { + TK_OPTION_BOOLEAN, + TK_OPTION_INT, + TK_OPTION_DOUBLE, + TK_OPTION_STRING, + TK_OPTION_STRING_TABLE, + TK_OPTION_COLOR, + TK_OPTION_FONT, + TK_OPTION_BITMAP, + TK_OPTION_BORDER, + TK_OPTION_RELIEF, + TK_OPTION_CURSOR, + TK_OPTION_JUSTIFY, + TK_OPTION_ANCHOR, + TK_OPTION_SYNONYM, + TK_OPTION_PIXELS, + TK_OPTION_WINDOW, + TK_OPTION_END, + TK_OPTION_CUSTOM, + TK_OPTION_STYLE +} Tk_OptionType; + +/* + * Structures of the following type are used by widgets to specify their + * configuration options. Typically each widget has a static array of these + * structures, where each element of the array describes a single + * configuration option. The array is passed to Tk_CreateOptionTable. + */ + +typedef struct Tk_OptionSpec { + Tk_OptionType type; /* Type of option, such as TK_OPTION_COLOR; + * see definitions above. Last option in table + * must have type TK_OPTION_END. */ + const char *optionName; /* Name used to specify option in Tcl + * commands. */ + const char *dbName; /* Name for option in option database. */ + const char *dbClass; /* Class for option in database. */ + const char *defValue; /* Default value for option if not specified + * in command line, the option database, or + * the system. */ + int objOffset; /* Where in record to store a Tcl_Obj * that + * holds the value of this option, specified + * as an offset in bytes from the start of the + * record. Use the Tk_Offset macro to generate + * values for this. -1 means don't store the + * Tcl_Obj in the record. */ + int internalOffset; /* Where in record to store the internal + * representation of the value of this option, + * such as an int or XColor *. This field is + * specified as an offset in bytes from the + * start of the record. Use the Tk_Offset + * macro to generate values for it. -1 means + * don't store the internal representation in + * the record. */ + int flags; /* Any combination of the values defined + * below. */ + const void *clientData; /* An alternate place to put option-specific + * data. Used for the monochrome default value + * for colors, etc. */ + int typeMask; /* An arbitrary bit mask defined by the class + * manager; typically bits correspond to + * certain kinds of options such as all those + * that require a redisplay when they change. + * Tk_SetOptions returns the bit-wise OR of + * the typeMasks of all options that were + * changed. */ +} Tk_OptionSpec; + +/* + * Flag values for Tk_OptionSpec structures. These flags are shared by + * Tk_ConfigSpec structures, so be sure to coordinate any changes carefully. + */ + +#define TK_OPTION_NULL_OK (1 << 0) +#define TK_OPTION_DONT_SET_DEFAULT (1 << 3) + +/* + * The following structure and function types are used by TK_OPTION_CUSTOM + * options; the structure holds pointers to the functions needed by the Tk + * option config code to handle a custom option. + */ + +typedef int (Tk_CustomOptionSetProc) (ClientData clientData, + Tcl_Interp *interp, Tk_Window tkwin, Tcl_Obj **value, char *widgRec, + int offset, char *saveInternalPtr, int flags); +typedef Tcl_Obj *(Tk_CustomOptionGetProc) (ClientData clientData, + Tk_Window tkwin, char *widgRec, int offset); +typedef void (Tk_CustomOptionRestoreProc) (ClientData clientData, + Tk_Window tkwin, char *internalPtr, char *saveInternalPtr); +typedef void (Tk_CustomOptionFreeProc) (ClientData clientData, Tk_Window tkwin, + char *internalPtr); + +typedef struct Tk_ObjCustomOption { + const char *name; /* Name of the custom option. */ + Tk_CustomOptionSetProc *setProc; + /* Function to use to set a record's option + * value from a Tcl_Obj */ + Tk_CustomOptionGetProc *getProc; + /* Function to use to get a Tcl_Obj + * representation from an internal + * representation of an option. */ + Tk_CustomOptionRestoreProc *restoreProc; + /* Function to use to restore a saved value + * for the internal representation. */ + Tk_CustomOptionFreeProc *freeProc; + /* Function to use to free the internal + * representation of an option. */ + ClientData clientData; /* Arbitrary one-word value passed to the + * handling procs. */ +} Tk_ObjCustomOption; + +/* + * Macro to use to fill in "offset" fields of the Tk_OptionSpec structure. + * Computes number of bytes from beginning of structure to a given field. + */ + +#ifdef offsetof +#define Tk_Offset(type, field) ((int) offsetof(type, field)) +#else +#define Tk_Offset(type, field) ((int) ((char *) &((type *) 0)->field)) +#endif + +/* + * The following two structures are used for error handling. When config + * options are being modified, the old values are saved in a Tk_SavedOptions + * structure. If an error occurs, then the contents of the structure can be + * used to restore all of the old values. The contents of this structure are + * for the private use Tk. No-one outside Tk should ever read or write any of + * the fields of these structures. + */ + +typedef struct Tk_SavedOption { + struct TkOption *optionPtr; /* Points to information that describes the + * option. */ + Tcl_Obj *valuePtr; /* The old value of the option, in the form of + * a Tcl object; may be NULL if the value was + * not saved as an object. */ + double internalForm; /* The old value of the option, in some + * internal representation such as an int or + * (XColor *). Valid only if the field + * optionPtr->specPtr->objOffset is < 0. The + * space must be large enough to accommodate a + * double, a long, or a pointer; right now it + * looks like a double (i.e., 8 bytes) is big + * enough. Also, using a double guarantees + * that the field is properly aligned for + * storing large values. */ +} Tk_SavedOption; + +#ifdef TCL_MEM_DEBUG +# define TK_NUM_SAVED_OPTIONS 2 +#else +# define TK_NUM_SAVED_OPTIONS 20 +#endif + +typedef struct Tk_SavedOptions { + char *recordPtr; /* The data structure in which to restore + * configuration options. */ + Tk_Window tkwin; /* Window associated with recordPtr; needed to + * restore certain options. */ + int numItems; /* The number of valid items in items field. */ + Tk_SavedOption items[TK_NUM_SAVED_OPTIONS]; + /* Items used to hold old values. */ + struct Tk_SavedOptions *nextPtr; + /* Points to next structure in list; needed if + * too many options changed to hold all the + * old values in a single structure. NULL + * means no more structures. */ +} Tk_SavedOptions; + +/* + * Structure used to describe application-specific configuration options: + * indicates procedures to call to parse an option and to return a text string + * describing an option. THESE ARE DEPRECATED; PLEASE USE THE NEW STRUCTURES + * LISTED ABOVE. + */ + +/* + * This is a temporary flag used while tkObjConfig and new widgets are in + * development. + */ + +#ifndef __NO_OLD_CONFIG + +typedef int (Tk_OptionParseProc) (ClientData clientData, Tcl_Interp *interp, + Tk_Window tkwin, CONST84 char *value, char *widgRec, int offset); +typedef CONST86 char *(Tk_OptionPrintProc) (ClientData clientData, + Tk_Window tkwin, char *widgRec, int offset, Tcl_FreeProc **freeProcPtr); + +typedef struct Tk_CustomOption { + Tk_OptionParseProc *parseProc; + /* Procedure to call to parse an option and + * store it in converted form. */ + Tk_OptionPrintProc *printProc; + /* Procedure to return a printable string + * describing an existing option. */ + ClientData clientData; /* Arbitrary one-word value used by option + * parser: passed to parseProc and + * printProc. */ +} Tk_CustomOption; + +/* + * Structure used to specify information for Tk_ConfigureWidget. Each + * structure gives complete information for one option, including how the + * option is specified on the command line, where it appears in the option + * database, etc. + */ + +typedef struct Tk_ConfigSpec { + int type; /* Type of option, such as TK_CONFIG_COLOR; + * see definitions below. Last option in table + * must have type TK_CONFIG_END. */ + CONST86 char *argvName; /* Switch used to specify option in argv. NULL + * means this spec is part of a group. */ + Tk_Uid dbName; /* Name for option in option database. */ + Tk_Uid dbClass; /* Class for option in database. */ + Tk_Uid defValue; /* Default value for option if not specified + * in command line or database. */ + int offset; /* Where in widget record to store value; use + * Tk_Offset macro to generate values for + * this. */ + int specFlags; /* Any combination of the values defined + * below; other bits are used internally by + * tkConfig.c. */ + CONST86 Tk_CustomOption *customPtr; + /* If type is TK_CONFIG_CUSTOM then this is a + * pointer to info about how to parse and + * print the option. Otherwise it is + * irrelevant. */ +} Tk_ConfigSpec; + +/* + * Type values for Tk_ConfigSpec structures. See the user documentation for + * details. + */ + +typedef enum { + TK_CONFIG_BOOLEAN, TK_CONFIG_INT, TK_CONFIG_DOUBLE, TK_CONFIG_STRING, + TK_CONFIG_UID, TK_CONFIG_COLOR, TK_CONFIG_FONT, TK_CONFIG_BITMAP, + TK_CONFIG_BORDER, TK_CONFIG_RELIEF, TK_CONFIG_CURSOR, + TK_CONFIG_ACTIVE_CURSOR, TK_CONFIG_JUSTIFY, TK_CONFIG_ANCHOR, + TK_CONFIG_SYNONYM, TK_CONFIG_CAP_STYLE, TK_CONFIG_JOIN_STYLE, + TK_CONFIG_PIXELS, TK_CONFIG_MM, TK_CONFIG_WINDOW, TK_CONFIG_CUSTOM, + TK_CONFIG_END +} Tk_ConfigTypes; + +/* + * Possible values for flags argument to Tk_ConfigureWidget: + */ + +#define TK_CONFIG_ARGV_ONLY 1 +#define TK_CONFIG_OBJS 0x80 + +/* + * Possible flag values for Tk_ConfigSpec structures. Any bits at or above + * TK_CONFIG_USER_BIT may be used by clients for selecting certain entries. + * Before changing any values here, coordinate with tkOldConfig.c + * (internal-use-only flags are defined there). + */ + +#define TK_CONFIG_NULL_OK (1 << 0) +#define TK_CONFIG_COLOR_ONLY (1 << 1) +#define TK_CONFIG_MONO_ONLY (1 << 2) +#define TK_CONFIG_DONT_SET_DEFAULT (1 << 3) +#define TK_CONFIG_OPTION_SPECIFIED (1 << 4) +#define TK_CONFIG_USER_BIT 0x100 +#endif /* __NO_OLD_CONFIG */ + +/* + * Structure used to specify how to handle argv options. + */ + +typedef struct { + CONST86 char *key; /* The key string that flags the option in the + * argv array. */ + int type; /* Indicates option type; see below. */ + char *src; /* Value to be used in setting dst; usage + * depends on type. */ + char *dst; /* Address of value to be modified; usage + * depends on type. */ + CONST86 char *help; /* Documentation message describing this + * option. */ +} Tk_ArgvInfo; + +/* + * Legal values for the type field of a Tk_ArgvInfo: see the user + * documentation for details. + */ + +#define TK_ARGV_CONSTANT 15 +#define TK_ARGV_INT 16 +#define TK_ARGV_STRING 17 +#define TK_ARGV_UID 18 +#define TK_ARGV_REST 19 +#define TK_ARGV_FLOAT 20 +#define TK_ARGV_FUNC 21 +#define TK_ARGV_GENFUNC 22 +#define TK_ARGV_HELP 23 +#define TK_ARGV_CONST_OPTION 24 +#define TK_ARGV_OPTION_VALUE 25 +#define TK_ARGV_OPTION_NAME_VALUE 26 +#define TK_ARGV_END 27 + +/* + * Flag bits for passing to Tk_ParseArgv: + */ + +#define TK_ARGV_NO_DEFAULTS 0x1 +#define TK_ARGV_NO_LEFTOVERS 0x2 +#define TK_ARGV_NO_ABBREV 0x4 +#define TK_ARGV_DONT_SKIP_FIRST_ARG 0x8 + +/* + * Enumerated type for describing actions to be taken in response to a + * restrictProc established by Tk_RestrictEvents. + */ + +typedef enum { + TK_DEFER_EVENT, TK_PROCESS_EVENT, TK_DISCARD_EVENT +} Tk_RestrictAction; + +/* + * Priority levels to pass to Tk_AddOption: + */ + +#define TK_WIDGET_DEFAULT_PRIO 20 +#define TK_STARTUP_FILE_PRIO 40 +#define TK_USER_DEFAULT_PRIO 60 +#define TK_INTERACTIVE_PRIO 80 +#define TK_MAX_PRIO 100 + +/* + * Relief values returned by Tk_GetRelief: + */ + +#define TK_RELIEF_NULL -1 +#define TK_RELIEF_FLAT 0 +#define TK_RELIEF_GROOVE 1 +#define TK_RELIEF_RAISED 2 +#define TK_RELIEF_RIDGE 3 +#define TK_RELIEF_SOLID 4 +#define TK_RELIEF_SUNKEN 5 + +/* + * "Which" argument values for Tk_3DBorderGC: + */ + +#define TK_3D_FLAT_GC 1 +#define TK_3D_LIGHT_GC 2 +#define TK_3D_DARK_GC 3 + +/* + * Special EnterNotify/LeaveNotify "mode" for use in events generated by + * tkShare.c. Pick a high enough value that it's unlikely to conflict with + * existing values (like NotifyNormal) or any new values defined in the + * future. + */ + +#define TK_NOTIFY_SHARE 20 + +/* + * Enumerated type for describing a point by which to anchor something: + */ + +typedef enum { + TK_ANCHOR_N, TK_ANCHOR_NE, TK_ANCHOR_E, TK_ANCHOR_SE, + TK_ANCHOR_S, TK_ANCHOR_SW, TK_ANCHOR_W, TK_ANCHOR_NW, + TK_ANCHOR_CENTER +} Tk_Anchor; + +/* + * Enumerated type for describing a style of justification: + */ + +typedef enum { + TK_JUSTIFY_LEFT, TK_JUSTIFY_RIGHT, TK_JUSTIFY_CENTER +} Tk_Justify; + +/* + * The following structure is used by Tk_GetFontMetrics() to return + * information about the properties of a Tk_Font. + */ + +typedef struct Tk_FontMetrics { + int ascent; /* The amount in pixels that the tallest + * letter sticks up above the baseline, plus + * any extra blank space added by the designer + * of the font. */ + int descent; /* The largest amount in pixels that any + * letter sticks below the baseline, plus any + * extra blank space added by the designer of + * the font. */ + int linespace; /* The sum of the ascent and descent. How far + * apart two lines of text in the same font + * should be placed so that none of the + * characters in one line overlap any of the + * characters in the other line. */ +} Tk_FontMetrics; + +/* + * Flags passed to Tk_MeasureChars: + */ + +#define TK_WHOLE_WORDS 1 +#define TK_AT_LEAST_ONE 2 +#define TK_PARTIAL_OK 4 + +/* + * Flags passed to Tk_ComputeTextLayout: + */ + +#define TK_IGNORE_TABS 8 +#define TK_IGNORE_NEWLINES 16 + +/* + * Widget class procedures used to implement platform specific widget + * behavior. + */ + +typedef Window (Tk_ClassCreateProc) (Tk_Window tkwin, Window parent, + ClientData instanceData); +typedef void (Tk_ClassWorldChangedProc) (ClientData instanceData); +typedef void (Tk_ClassModalProc) (Tk_Window tkwin, XEvent *eventPtr); + +typedef struct Tk_ClassProcs { + unsigned int size; + Tk_ClassWorldChangedProc *worldChangedProc; + /* Procedure to invoke when the widget needs + * to respond in some way to a change in the + * world (font changes, etc.) */ + Tk_ClassCreateProc *createProc; + /* Procedure to invoke when the platform- + * dependent window needs to be created. */ + Tk_ClassModalProc *modalProc; + /* Procedure to invoke after all bindings on a + * widget have been triggered in order to + * handle a modal loop. */ +} Tk_ClassProcs; + +/* + * Simple accessor for Tk_ClassProcs structure. Checks that the structure is + * not NULL, then checks the size field and returns either the requested + * field, if present, or NULL if the structure is too small to have the field + * (or NULL if the structure is NULL). + * + * A more general version of this function may be useful if other + * size-versioned structure pop up in the future: + * + * #define Tk_GetField(name, who, which) \ + * (((who) == NULL) ? NULL : + * (((who)->size <= Tk_Offset(name, which)) ? NULL :(name)->which)) + */ + +#define Tk_GetClassProc(procs, which) \ + (((procs) == NULL) ? NULL : \ + (((procs)->size <= Tk_Offset(Tk_ClassProcs, which)) ? NULL:(procs)->which)) + +/* + * Each geometry manager (the packer, the placer, etc.) is represented by a + * structure of the following form, which indicates procedures to invoke in + * the geometry manager to carry out certain functions. + */ + +typedef void (Tk_GeomRequestProc) (ClientData clientData, Tk_Window tkwin); +typedef void (Tk_GeomLostSlaveProc) (ClientData clientData, Tk_Window tkwin); + +typedef struct Tk_GeomMgr { + const char *name; /* Name of the geometry manager (command used + * to invoke it, or name of widget class that + * allows embedded widgets). */ + Tk_GeomRequestProc *requestProc; + /* Procedure to invoke when a slave's + * requested geometry changes. */ + Tk_GeomLostSlaveProc *lostSlaveProc; + /* Procedure to invoke when a slave is taken + * away from one geometry manager by another. + * NULL means geometry manager doesn't care + * when slaves are lost. */ +} Tk_GeomMgr; + +/* + * Result values returned by Tk_GetScrollInfo: + */ + +#define TK_SCROLL_MOVETO 1 +#define TK_SCROLL_PAGES 2 +#define TK_SCROLL_UNITS 3 +#define TK_SCROLL_ERROR 4 + +/* + *---------------------------------------------------------------------- + * + * Extensions to the X event set + * + *---------------------------------------------------------------------- + */ + +#define VirtualEvent (MappingNotify + 1) +#define ActivateNotify (MappingNotify + 2) +#define DeactivateNotify (MappingNotify + 3) +#define MouseWheelEvent (MappingNotify + 4) +#define TK_LASTEVENT (MappingNotify + 5) + +#define MouseWheelMask (1L << 28) +#define ActivateMask (1L << 29) +#define VirtualEventMask (1L << 30) + +/* + * A virtual event shares most of its fields with the XKeyEvent and + * XButtonEvent structures. 99% of the time a virtual event will be an + * abstraction of a key or button event, so this structure provides the most + * information to the user. The only difference is the changing of the detail + * field for a virtual event so that it holds the name of the virtual event + * being triggered. + * + * When using this structure, you should ensure that you zero out all the + * fields first using memset() or bzero(). + */ + +typedef struct { + int type; + unsigned long serial; /* # of last request processed by server. */ + Bool send_event; /* True if this came from a SendEvent + * request. */ + Display *display; /* Display the event was read from. */ + Window event; /* Window on which event was requested. */ + Window root; /* Root window that the event occured on. */ + Window subwindow; /* Child window. */ + Time time; /* Milliseconds. */ + int x, y; /* Pointer x, y coordinates in event + * window. */ + int x_root, y_root; /* Coordinates relative to root. */ + unsigned int state; /* Key or button mask */ + Tk_Uid name; /* Name of virtual event. */ + Bool same_screen; /* Same screen flag. */ + Tcl_Obj *user_data; /* Application-specific data reference; Tk + * will decrement the reference count *once* + * when it has finished processing the + * event. */ +} XVirtualEvent; + +typedef struct { + int type; + unsigned long serial; /* # of last request processed by server. */ + Bool send_event; /* True if this came from a SendEvent + * request. */ + Display *display; /* Display the event was read from. */ + Window window; /* Window in which event occurred. */ +} XActivateDeactivateEvent; +typedef XActivateDeactivateEvent XActivateEvent; +typedef XActivateDeactivateEvent XDeactivateEvent; + +/* + *---------------------------------------------------------------------- + * + * Macros for querying Tk_Window structures. See the manual entries for + * documentation. + * + *---------------------------------------------------------------------- + */ + +#define Tk_Display(tkwin) (((Tk_FakeWin *) (tkwin))->display) +#define Tk_ScreenNumber(tkwin) (((Tk_FakeWin *) (tkwin))->screenNum) +#define Tk_Screen(tkwin) \ + (ScreenOfDisplay(Tk_Display(tkwin), Tk_ScreenNumber(tkwin))) +#define Tk_Depth(tkwin) (((Tk_FakeWin *) (tkwin))->depth) +#define Tk_Visual(tkwin) (((Tk_FakeWin *) (tkwin))->visual) +#define Tk_WindowId(tkwin) (((Tk_FakeWin *) (tkwin))->window) +#define Tk_PathName(tkwin) (((Tk_FakeWin *) (tkwin))->pathName) +#define Tk_Name(tkwin) (((Tk_FakeWin *) (tkwin))->nameUid) +#define Tk_Class(tkwin) (((Tk_FakeWin *) (tkwin))->classUid) +#define Tk_X(tkwin) (((Tk_FakeWin *) (tkwin))->changes.x) +#define Tk_Y(tkwin) (((Tk_FakeWin *) (tkwin))->changes.y) +#define Tk_Width(tkwin) (((Tk_FakeWin *) (tkwin))->changes.width) +#define Tk_Height(tkwin) \ + (((Tk_FakeWin *) (tkwin))->changes.height) +#define Tk_Changes(tkwin) (&((Tk_FakeWin *) (tkwin))->changes) +#define Tk_Attributes(tkwin) (&((Tk_FakeWin *) (tkwin))->atts) +#define Tk_IsEmbedded(tkwin) \ + (((Tk_FakeWin *) (tkwin))->flags & TK_EMBEDDED) +#define Tk_IsContainer(tkwin) \ + (((Tk_FakeWin *) (tkwin))->flags & TK_CONTAINER) +#define Tk_IsMapped(tkwin) \ + (((Tk_FakeWin *) (tkwin))->flags & TK_MAPPED) +#define Tk_IsTopLevel(tkwin) \ + (((Tk_FakeWin *) (tkwin))->flags & TK_TOP_LEVEL) +#define Tk_HasWrapper(tkwin) \ + (((Tk_FakeWin *) (tkwin))->flags & TK_HAS_WRAPPER) +#define Tk_WinManaged(tkwin) \ + (((Tk_FakeWin *) (tkwin))->flags & TK_WIN_MANAGED) +#define Tk_TopWinHierarchy(tkwin) \ + (((Tk_FakeWin *) (tkwin))->flags & TK_TOP_HIERARCHY) +#define Tk_IsManageable(tkwin) \ + (((Tk_FakeWin *) (tkwin))->flags & TK_WM_MANAGEABLE) +#define Tk_ReqWidth(tkwin) (((Tk_FakeWin *) (tkwin))->reqWidth) +#define Tk_ReqHeight(tkwin) (((Tk_FakeWin *) (tkwin))->reqHeight) +/* Tk_InternalBorderWidth is deprecated */ +#define Tk_InternalBorderWidth(tkwin) \ + (((Tk_FakeWin *) (tkwin))->internalBorderLeft) +#define Tk_InternalBorderLeft(tkwin) \ + (((Tk_FakeWin *) (tkwin))->internalBorderLeft) +#define Tk_InternalBorderRight(tkwin) \ + (((Tk_FakeWin *) (tkwin))->internalBorderRight) +#define Tk_InternalBorderTop(tkwin) \ + (((Tk_FakeWin *) (tkwin))->internalBorderTop) +#define Tk_InternalBorderBottom(tkwin) \ + (((Tk_FakeWin *) (tkwin))->internalBorderBottom) +#define Tk_MinReqWidth(tkwin) (((Tk_FakeWin *) (tkwin))->minReqWidth) +#define Tk_MinReqHeight(tkwin) (((Tk_FakeWin *) (tkwin))->minReqHeight) +#define Tk_Parent(tkwin) (((Tk_FakeWin *) (tkwin))->parentPtr) +#define Tk_Colormap(tkwin) (((Tk_FakeWin *) (tkwin))->atts.colormap) + +/* + * The structure below is needed by the macros above so that they can access + * the fields of a Tk_Window. The fields not needed by the macros are declared + * as "dummyX". The structure has its own type in order to prevent apps from + * accessing Tk_Window fields except using official macros. WARNING!! The + * structure definition must be kept consistent with the TkWindow structure in + * tkInt.h. If you change one, then change the other. See the declaration in + * tkInt.h for documentation on what the fields are used for internally. + */ + +typedef struct Tk_FakeWin { + Display *display; + char *dummy1; /* dispPtr */ + int screenNum; + Visual *visual; + int depth; + Window window; + char *dummy2; /* childList */ + char *dummy3; /* lastChildPtr */ + Tk_Window parentPtr; /* parentPtr */ + char *dummy4; /* nextPtr */ + char *dummy5; /* mainPtr */ + char *pathName; + Tk_Uid nameUid; + Tk_Uid classUid; + XWindowChanges changes; + unsigned int dummy6; /* dirtyChanges */ + XSetWindowAttributes atts; + unsigned long dummy7; /* dirtyAtts */ + unsigned int flags; + char *dummy8; /* handlerList */ +#ifdef TK_USE_INPUT_METHODS + XIC dummy9; /* inputContext */ +#endif /* TK_USE_INPUT_METHODS */ + ClientData *dummy10; /* tagPtr */ + int dummy11; /* numTags */ + int dummy12; /* optionLevel */ + char *dummy13; /* selHandlerList */ + char *dummy14; /* geomMgrPtr */ + ClientData dummy15; /* geomData */ + int reqWidth, reqHeight; + int internalBorderLeft; + char *dummy16; /* wmInfoPtr */ + char *dummy17; /* classProcPtr */ + ClientData dummy18; /* instanceData */ + char *dummy19; /* privatePtr */ + int internalBorderRight; + int internalBorderTop; + int internalBorderBottom; + int minReqWidth; + int minReqHeight; + char *dummy20; /* geometryMaster */ +} Tk_FakeWin; + +/* + * Flag values for TkWindow (and Tk_FakeWin) structures are: + * + * TK_MAPPED: 1 means window is currently mapped, + * 0 means unmapped. + * TK_TOP_LEVEL: 1 means this is a top-level widget. + * TK_ALREADY_DEAD: 1 means the window is in the process of + * being destroyed already. + * TK_NEED_CONFIG_NOTIFY: 1 means that the window has been reconfigured + * before it was made to exist. At the time of + * making it exist a ConfigureNotify event needs + * to be generated. + * TK_GRAB_FLAG: Used to manage grabs. See tkGrab.c for details + * TK_CHECKED_IC: 1 means we've already tried to get an input + * context for this window; if the ic field is + * NULL it means that there isn't a context for + * the field. + * TK_DONT_DESTROY_WINDOW: 1 means that Tk_DestroyWindow should not + * invoke XDestroyWindow to destroy this widget's + * X window. The flag is set when the window has + * already been destroyed elsewhere (e.g. by + * another application) or when it will be + * destroyed later (e.g. by destroying its parent) + * TK_WM_COLORMAP_WINDOW: 1 means that this window has at some time + * appeared in the WM_COLORMAP_WINDOWS property + * for its toplevel, so we have to remove it from + * that property if the window is deleted and the + * toplevel isn't. + * TK_EMBEDDED: 1 means that this window (which must be a + * toplevel) is not a free-standing window but + * rather is embedded in some other application. + * TK_CONTAINER: 1 means that this window is a container, and + * that some other application (either in this + * process or elsewhere) may be embedding itself + * inside the window. + * TK_BOTH_HALVES: 1 means that this window is used for + * application embedding (either as container or + * embedded application), and both the containing + * and embedded halves are associated with + * windows in this particular process. + * TK_WRAPPER: 1 means that this window is the extra wrapper + * window created around a toplevel to hold the + * menubar under Unix. See tkUnixWm.c for more + * information. + * TK_REPARENTED: 1 means that this window has been reparented + * so that as far as the window system is + * concerned it isn't a child of its Tk parent. + * Initially this is used only for special Unix + * menubar windows. + * TK_ANONYMOUS_WINDOW: 1 means that this window has no name, and is + * thus not accessible from Tk. + * TK_HAS_WRAPPER 1 means that this window has a wrapper window + * TK_WIN_MANAGED 1 means that this window is a child of the root + * window, and is managed by the window manager. + * TK_TOP_HIERARCHY 1 means this window is at the top of a physical + * window hierarchy within this process, i.e. the + * window's parent either doesn't exist or is not + * owned by this Tk application. + * TK_PROP_PROPCHANGE 1 means that PropertyNotify events in the + * window's children should propagate up to this + * window. + * TK_WM_MANAGEABLE 1 marks a window as capable of being converted + * into a toplevel using [wm manage]. + */ + +#define TK_MAPPED 1 +#define TK_TOP_LEVEL 2 +#define TK_ALREADY_DEAD 4 +#define TK_NEED_CONFIG_NOTIFY 8 +#define TK_GRAB_FLAG 0x10 +#define TK_CHECKED_IC 0x20 +#define TK_DONT_DESTROY_WINDOW 0x40 +#define TK_WM_COLORMAP_WINDOW 0x80 +#define TK_EMBEDDED 0x100 +#define TK_CONTAINER 0x200 +#define TK_BOTH_HALVES 0x400 +#define TK_WRAPPER 0x1000 +#define TK_REPARENTED 0x2000 +#define TK_ANONYMOUS_WINDOW 0x4000 +#define TK_HAS_WRAPPER 0x8000 +#define TK_WIN_MANAGED 0x10000 +#define TK_TOP_HIERARCHY 0x20000 +#define TK_PROP_PROPCHANGE 0x40000 +#define TK_WM_MANAGEABLE 0x80000 + +/* + *---------------------------------------------------------------------- + * + * Procedure prototypes and structures used for defining new canvas items: + * + *---------------------------------------------------------------------- + */ + +typedef enum { + TK_STATE_NULL = -1, TK_STATE_ACTIVE, TK_STATE_DISABLED, + TK_STATE_NORMAL, TK_STATE_HIDDEN +} Tk_State; + +typedef struct Tk_SmoothMethod { + CONST86 char *name; + int (*coordProc) (Tk_Canvas canvas, double *pointPtr, int numPoints, + int numSteps, XPoint xPoints[], double dblPoints[]); + void (*postscriptProc) (Tcl_Interp *interp, Tk_Canvas canvas, + double *coordPtr, int numPoints, int numSteps); +} Tk_SmoothMethod; + +/* + * For each item in a canvas widget there exists one record with the following + * structure. Each actual item is represented by a record with the following + * stuff at its beginning, plus additional type-specific stuff after that. + */ + +#define TK_TAG_SPACE 3 + +typedef struct Tk_Item { + int id; /* Unique identifier for this item (also + * serves as first tag for item). */ + struct Tk_Item *nextPtr; /* Next in display list of all items in this + * canvas. Later items in list are drawn on + * top of earlier ones. */ + Tk_Uid staticTagSpace[TK_TAG_SPACE]; + /* Built-in space for limited # of tags. */ + Tk_Uid *tagPtr; /* Pointer to array of tags. Usually points to + * staticTagSpace, but may point to malloc-ed + * space if there are lots of tags. */ + int tagSpace; /* Total amount of tag space available at + * tagPtr. */ + int numTags; /* Number of tag slots actually used at + * *tagPtr. */ + struct Tk_ItemType *typePtr;/* Table of procedures that implement this + * type of item. */ + int x1, y1, x2, y2; /* Bounding box for item, in integer canvas + * units. Set by item-specific code and + * guaranteed to contain every pixel drawn in + * item. Item area includes x1 and y1 but not + * x2 and y2. */ + struct Tk_Item *prevPtr; /* Previous in display list of all items in + * this canvas. Later items in list are drawn + * just below earlier ones. */ + Tk_State state; /* State of item. */ + char *reserved1; /* reserved for future use */ + int redraw_flags; /* Some flags used in the canvas */ + + /* + *------------------------------------------------------------------ + * Starting here is additional type-specific stuff; see the declarations + * for individual types to see what is part of each type. The actual space + * below is determined by the "itemInfoSize" of the type's Tk_ItemType + * record. + *------------------------------------------------------------------ + */ +} Tk_Item; + +/* + * Flag bits for canvases (redraw_flags): + * + * TK_ITEM_STATE_DEPENDANT - 1 means that object needs to be redrawn if the + * canvas state changes. + * TK_ITEM_DONT_REDRAW - 1 means that the object redraw is already been + * prepared, so the general canvas code doesn't + * need to do that any more. + */ + +#define TK_ITEM_STATE_DEPENDANT 1 +#define TK_ITEM_DONT_REDRAW 2 + +/* + * Records of the following type are used to describe a type of item (e.g. + * lines, circles, etc.) that can form part of a canvas widget. + */ + +#ifdef USE_OLD_CANVAS +typedef int (Tk_ItemCreateProc)(Tcl_Interp *interp, Tk_Canvas canvas, + Tk_Item *itemPtr, int argc, char **argv); +typedef int (Tk_ItemConfigureProc)(Tcl_Interp *interp, Tk_Canvas canvas, + Tk_Item *itemPtr, int argc, char **argv, int flags); +typedef int (Tk_ItemCoordProc)(Tcl_Interp *interp, Tk_Canvas canvas, + Tk_Item *itemPtr, int argc, char **argv); +#else +typedef int (Tk_ItemCreateProc)(Tcl_Interp *interp, Tk_Canvas canvas, + Tk_Item *itemPtr, int argc, Tcl_Obj *const objv[]); +typedef int (Tk_ItemConfigureProc)(Tcl_Interp *interp, Tk_Canvas canvas, + Tk_Item *itemPtr, int argc, Tcl_Obj *const objv[], + int flags); +typedef int (Tk_ItemCoordProc)(Tcl_Interp *interp, Tk_Canvas canvas, + Tk_Item *itemPtr, int argc, Tcl_Obj *const argv[]); +#endif /* USE_OLD_CANVAS */ +typedef void (Tk_ItemDeleteProc)(Tk_Canvas canvas, Tk_Item *itemPtr, + Display *display); +typedef void (Tk_ItemDisplayProc)(Tk_Canvas canvas, Tk_Item *itemPtr, + Display *display, Drawable dst, int x, int y, int width, + int height); +typedef double (Tk_ItemPointProc)(Tk_Canvas canvas, Tk_Item *itemPtr, + double *pointPtr); +typedef int (Tk_ItemAreaProc)(Tk_Canvas canvas, Tk_Item *itemPtr, + double *rectPtr); +typedef int (Tk_ItemPostscriptProc)(Tcl_Interp *interp, Tk_Canvas canvas, + Tk_Item *itemPtr, int prepass); +typedef void (Tk_ItemScaleProc)(Tk_Canvas canvas, Tk_Item *itemPtr, + double originX, double originY, double scaleX, + double scaleY); +typedef void (Tk_ItemTranslateProc)(Tk_Canvas canvas, Tk_Item *itemPtr, + double deltaX, double deltaY); +#ifdef USE_OLD_CANVAS +typedef int (Tk_ItemIndexProc)(Tcl_Interp *interp, Tk_Canvas canvas, + Tk_Item *itemPtr, char *indexString, int *indexPtr); +#else +typedef int (Tk_ItemIndexProc)(Tcl_Interp *interp, Tk_Canvas canvas, + Tk_Item *itemPtr, Tcl_Obj *indexString, int *indexPtr); +#endif /* USE_OLD_CANVAS */ +typedef void (Tk_ItemCursorProc)(Tk_Canvas canvas, Tk_Item *itemPtr, + int index); +typedef int (Tk_ItemSelectionProc)(Tk_Canvas canvas, Tk_Item *itemPtr, + int offset, char *buffer, int maxBytes); +#ifdef USE_OLD_CANVAS +typedef void (Tk_ItemInsertProc)(Tk_Canvas canvas, Tk_Item *itemPtr, + int beforeThis, char *string); +#else +typedef void (Tk_ItemInsertProc)(Tk_Canvas canvas, Tk_Item *itemPtr, + int beforeThis, Tcl_Obj *string); +#endif /* USE_OLD_CANVAS */ +typedef void (Tk_ItemDCharsProc)(Tk_Canvas canvas, Tk_Item *itemPtr, + int first, int last); + +#ifndef __NO_OLD_CONFIG + +typedef struct Tk_ItemType { + CONST86 char *name; /* The name of this type of item, such as + * "line". */ + int itemSize; /* Total amount of space needed for item's + * record. */ + Tk_ItemCreateProc *createProc; + /* Procedure to create a new item of this + * type. */ + CONST86 Tk_ConfigSpec *configSpecs; /* Pointer to array of configuration specs for + * this type. Used for returning configuration + * info. */ + Tk_ItemConfigureProc *configProc; + /* Procedure to call to change configuration + * options. */ + Tk_ItemCoordProc *coordProc;/* Procedure to call to get and set the item's + * coordinates. */ + Tk_ItemDeleteProc *deleteProc; + /* Procedure to delete existing item of this + * type. */ + Tk_ItemDisplayProc *displayProc; + /* Procedure to display items of this type. */ + int alwaysRedraw; /* Non-zero means displayProc should be called + * even when the item has been moved + * off-screen. */ + Tk_ItemPointProc *pointProc;/* Computes distance from item to a given + * point. */ + Tk_ItemAreaProc *areaProc; /* Computes whether item is inside, outside, + * or overlapping an area. */ + Tk_ItemPostscriptProc *postscriptProc; + /* Procedure to write a Postscript description + * for items of this type. */ + Tk_ItemScaleProc *scaleProc;/* Procedure to rescale items of this type. */ + Tk_ItemTranslateProc *translateProc; + /* Procedure to translate items of this + * type. */ + Tk_ItemIndexProc *indexProc;/* Procedure to determine index of indicated + * character. NULL if item doesn't support + * indexing. */ + Tk_ItemCursorProc *icursorProc; + /* Procedure to set insert cursor posn to just + * before a given position. */ + Tk_ItemSelectionProc *selectionProc; + /* Procedure to return selection (in STRING + * format) when it is in this item. */ + Tk_ItemInsertProc *insertProc; + /* Procedure to insert something into an + * item. */ + Tk_ItemDCharsProc *dCharsProc; + /* Procedure to delete characters from an + * item. */ + struct Tk_ItemType *nextPtr;/* Used to link types together into a list. */ + char *reserved1; /* Reserved for future extension. */ + int reserved2; /* Carefully compatible with */ + char *reserved3; /* Jan Nijtmans dash patch */ + char *reserved4; +} Tk_ItemType; + +/* + * Flag (used in the alwaysRedraw field) to say whether an item supports + * point-level manipulation like the line and polygon items. + */ + +#define TK_MOVABLE_POINTS 2 + +#endif /* __NO_OLD_CONFIG */ + +/* + * The following structure provides information about the selection and the + * insertion cursor. It is needed by only a few items, such as those that + * display text. It is shared by the generic canvas code and the item-specific + * code, but most of the fields should be written only by the canvas generic + * code. + */ + +typedef struct Tk_CanvasTextInfo { + Tk_3DBorder selBorder; /* Border and background for selected + * characters. Read-only to items.*/ + int selBorderWidth; /* Width of border around selection. Read-only + * to items. */ + XColor *selFgColorPtr; /* Foreground color for selected text. + * Read-only to items. */ + Tk_Item *selItemPtr; /* Pointer to selected item. NULL means + * selection isn't in this canvas. Writable by + * items. */ + int selectFirst; /* Character index of first selected + * character. Writable by items. */ + int selectLast; /* Character index of last selected character. + * Writable by items. */ + Tk_Item *anchorItemPtr; /* Item corresponding to "selectAnchor": not + * necessarily selItemPtr. Read-only to + * items. */ + int selectAnchor; /* Character index of fixed end of selection + * (i.e. "select to" operation will use this + * as one end of the selection). Writable by + * items. */ + Tk_3DBorder insertBorder; /* Used to draw vertical bar for insertion + * cursor. Read-only to items. */ + int insertWidth; /* Total width of insertion cursor. Read-only + * to items. */ + int insertBorderWidth; /* Width of 3-D border around insert cursor. + * Read-only to items. */ + Tk_Item *focusItemPtr; /* Item that currently has the input focus, or + * NULL if no such item. Read-only to items. */ + int gotFocus; /* Non-zero means that the canvas widget has + * the input focus. Read-only to items.*/ + int cursorOn; /* Non-zero means that an insertion cursor + * should be displayed in focusItemPtr. + * Read-only to items.*/ +} Tk_CanvasTextInfo; + +/* + * Structures used for Dashing and Outline. + */ + +typedef struct Tk_Dash { + int number; + union { + char *pt; + char array[sizeof(char *)]; + } pattern; +} Tk_Dash; + +typedef struct Tk_TSOffset { + int flags; /* Flags; see below for possible values */ + int xoffset; /* x offset */ + int yoffset; /* y offset */ +} Tk_TSOffset; + +/* + * Bit fields in Tk_Offset->flags: + */ + +#define TK_OFFSET_INDEX 1 +#define TK_OFFSET_RELATIVE 2 +#define TK_OFFSET_LEFT 4 +#define TK_OFFSET_CENTER 8 +#define TK_OFFSET_RIGHT 16 +#define TK_OFFSET_TOP 32 +#define TK_OFFSET_MIDDLE 64 +#define TK_OFFSET_BOTTOM 128 + +typedef struct Tk_Outline { + GC gc; /* Graphics context. */ + double width; /* Width of outline. */ + double activeWidth; /* Width of outline. */ + double disabledWidth; /* Width of outline. */ + int offset; /* Dash offset. */ + Tk_Dash dash; /* Dash pattern. */ + Tk_Dash activeDash; /* Dash pattern if state is active. */ + Tk_Dash disabledDash; /* Dash pattern if state is disabled. */ + void *reserved1; /* Reserved for future expansion. */ + void *reserved2; + void *reserved3; + Tk_TSOffset tsoffset; /* Stipple offset for outline. */ + XColor *color; /* Outline color. */ + XColor *activeColor; /* Outline color if state is active. */ + XColor *disabledColor; /* Outline color if state is disabled. */ + Pixmap stipple; /* Outline Stipple pattern. */ + Pixmap activeStipple; /* Outline Stipple pattern if state is + * active. */ + Pixmap disabledStipple; /* Outline Stipple pattern if state is + * disabled. */ +} Tk_Outline; + +/* + *---------------------------------------------------------------------- + * + * Procedure prototypes and structures used for managing images: + * + *---------------------------------------------------------------------- + */ + +typedef struct Tk_ImageType Tk_ImageType; +#ifdef USE_OLD_IMAGE +typedef int (Tk_ImageCreateProc) (Tcl_Interp *interp, char *name, int argc, + char **argv, Tk_ImageType *typePtr, Tk_ImageMaster master, + ClientData *masterDataPtr); +#else +typedef int (Tk_ImageCreateProc) (Tcl_Interp *interp, CONST86 char *name, int objc, + Tcl_Obj *const objv[], CONST86 Tk_ImageType *typePtr, Tk_ImageMaster master, + ClientData *masterDataPtr); +#endif /* USE_OLD_IMAGE */ +typedef ClientData (Tk_ImageGetProc) (Tk_Window tkwin, ClientData masterData); +typedef void (Tk_ImageDisplayProc) (ClientData instanceData, Display *display, + Drawable drawable, int imageX, int imageY, int width, int height, + int drawableX, int drawableY); +typedef void (Tk_ImageFreeProc) (ClientData instanceData, Display *display); +typedef void (Tk_ImageDeleteProc) (ClientData masterData); +typedef void (Tk_ImageChangedProc) (ClientData clientData, int x, int y, + int width, int height, int imageWidth, int imageHeight); +typedef int (Tk_ImagePostscriptProc) (ClientData clientData, + Tcl_Interp *interp, Tk_Window tkwin, Tk_PostscriptInfo psinfo, + int x, int y, int width, int height, int prepass); + +/* + * The following structure represents a particular type of image (bitmap, xpm + * image, etc.). It provides information common to all images of that type, + * such as the type name and a collection of procedures in the image manager + * that respond to various events. Each image manager is represented by one of + * these structures. + */ + +struct Tk_ImageType { + CONST86 char *name; /* Name of image type. */ + Tk_ImageCreateProc *createProc; + /* Procedure to call to create a new image of + * this type. */ + Tk_ImageGetProc *getProc; /* Procedure to call the first time + * Tk_GetImage is called in a new way (new + * visual or screen). */ + Tk_ImageDisplayProc *displayProc; + /* Call to draw image, in response to + * Tk_RedrawImage calls. */ + Tk_ImageFreeProc *freeProc; /* Procedure to call whenever Tk_FreeImage is + * called to release an instance of an + * image. */ + Tk_ImageDeleteProc *deleteProc; + /* Procedure to call to delete image. It will + * not be called until after freeProc has been + * called for each instance of the image. */ + Tk_ImagePostscriptProc *postscriptProc; + /* Procedure to call to produce postscript + * output for the image. */ + struct Tk_ImageType *nextPtr; + /* Next in list of all image types currently + * known. Filled in by Tk, not by image + * manager. */ + char *reserved; /* reserved for future expansion */ +}; + +/* + *---------------------------------------------------------------------- + * + * Additional definitions used to manage images of type "photo". + * + *---------------------------------------------------------------------- + */ + +/* + * The following type is used to identify a particular photo image to be + * manipulated: + */ + +typedef void *Tk_PhotoHandle; + +/* + * The following structure describes a block of pixels in memory: + */ + +typedef struct Tk_PhotoImageBlock { + unsigned char *pixelPtr; /* Pointer to the first pixel. */ + int width; /* Width of block, in pixels. */ + int height; /* Height of block, in pixels. */ + int pitch; /* Address difference between corresponding + * pixels in successive lines. */ + int pixelSize; /* Address difference between successive + * pixels in the same line. */ + int offset[4]; /* Address differences between the red, green, + * blue and alpha components of the pixel and + * the pixel as a whole. */ +} Tk_PhotoImageBlock; + +/* + * The following values control how blocks are combined into photo images when + * the alpha component of a pixel is not 255, a.k.a. the compositing rule. + */ + +#define TK_PHOTO_COMPOSITE_OVERLAY 0 +#define TK_PHOTO_COMPOSITE_SET 1 + +/* + * Procedure prototypes and structures used in reading and writing photo + * images: + */ + +typedef struct Tk_PhotoImageFormat Tk_PhotoImageFormat; +#ifdef USE_OLD_IMAGE +typedef int (Tk_ImageFileMatchProc) (Tcl_Channel chan, char *fileName, + char *formatString, int *widthPtr, int *heightPtr); +typedef int (Tk_ImageStringMatchProc) (char *string, char *formatString, + int *widthPtr, int *heightPtr); +typedef int (Tk_ImageFileReadProc) (Tcl_Interp *interp, Tcl_Channel chan, + char *fileName, char *formatString, Tk_PhotoHandle imageHandle, + int destX, int destY, int width, int height, int srcX, int srcY); +typedef int (Tk_ImageStringReadProc) (Tcl_Interp *interp, char *string, + char *formatString, Tk_PhotoHandle imageHandle, int destX, int destY, + int width, int height, int srcX, int srcY); +typedef int (Tk_ImageFileWriteProc) (Tcl_Interp *interp, char *fileName, + char *formatString, Tk_PhotoImageBlock *blockPtr); +typedef int (Tk_ImageStringWriteProc) (Tcl_Interp *interp, + Tcl_DString *dataPtr, char *formatString, Tk_PhotoImageBlock *blockPtr); +#else +typedef int (Tk_ImageFileMatchProc) (Tcl_Channel chan, const char *fileName, + Tcl_Obj *format, int *widthPtr, int *heightPtr, Tcl_Interp *interp); +typedef int (Tk_ImageStringMatchProc) (Tcl_Obj *dataObj, Tcl_Obj *format, + int *widthPtr, int *heightPtr, Tcl_Interp *interp); +typedef int (Tk_ImageFileReadProc) (Tcl_Interp *interp, Tcl_Channel chan, + const char *fileName, Tcl_Obj *format, Tk_PhotoHandle imageHandle, + int destX, int destY, int width, int height, int srcX, int srcY); +typedef int (Tk_ImageStringReadProc) (Tcl_Interp *interp, Tcl_Obj *dataObj, + Tcl_Obj *format, Tk_PhotoHandle imageHandle, int destX, int destY, + int width, int height, int srcX, int srcY); +typedef int (Tk_ImageFileWriteProc) (Tcl_Interp *interp, const char *fileName, + Tcl_Obj *format, Tk_PhotoImageBlock *blockPtr); +typedef int (Tk_ImageStringWriteProc) (Tcl_Interp *interp, Tcl_Obj *format, + Tk_PhotoImageBlock *blockPtr); +#endif /* USE_OLD_IMAGE */ + +/* + * The following structure represents a particular file format for storing + * images (e.g., PPM, GIF, JPEG, etc.). It provides information to allow image + * files of that format to be recognized and read into a photo image. + */ + +struct Tk_PhotoImageFormat { + CONST86 char *name; /* Name of image file format */ + Tk_ImageFileMatchProc *fileMatchProc; + /* Procedure to call to determine whether an + * image file matches this format. */ + Tk_ImageStringMatchProc *stringMatchProc; + /* Procedure to call to determine whether the + * data in a string matches this format. */ + Tk_ImageFileReadProc *fileReadProc; + /* Procedure to call to read data from an + * image file into a photo image. */ + Tk_ImageStringReadProc *stringReadProc; + /* Procedure to call to read data from a + * string into a photo image. */ + Tk_ImageFileWriteProc *fileWriteProc; + /* Procedure to call to write data from a + * photo image to a file. */ + Tk_ImageStringWriteProc *stringWriteProc; + /* Procedure to call to obtain a string + * representation of the data in a photo + * image.*/ + struct Tk_PhotoImageFormat *nextPtr; + /* Next in list of all photo image formats + * currently known. Filled in by Tk, not by + * image format handler. */ +}; + +/* + *---------------------------------------------------------------------- + * + * Procedure prototypes and structures used for managing styles: + * + *---------------------------------------------------------------------- + */ + +/* + * Style support version tag. + */ + +#define TK_STYLE_VERSION_1 0x1 +#define TK_STYLE_VERSION TK_STYLE_VERSION_1 + +/* + * The following structures and prototypes are used as static templates to + * declare widget elements. + */ + +typedef void (Tk_GetElementSizeProc) (ClientData clientData, char *recordPtr, + const Tk_OptionSpec **optionsPtr, Tk_Window tkwin, int width, + int height, int inner, int *widthPtr, int *heightPtr); +typedef void (Tk_GetElementBoxProc) (ClientData clientData, char *recordPtr, + const Tk_OptionSpec **optionsPtr, Tk_Window tkwin, int x, int y, + int width, int height, int inner, int *xPtr, int *yPtr, int *widthPtr, + int *heightPtr); +typedef int (Tk_GetElementBorderWidthProc) (ClientData clientData, + char *recordPtr, const Tk_OptionSpec **optionsPtr, Tk_Window tkwin); +typedef void (Tk_DrawElementProc) (ClientData clientData, char *recordPtr, + const Tk_OptionSpec **optionsPtr, Tk_Window tkwin, Drawable d, int x, + int y, int width, int height, int state); + +typedef struct Tk_ElementOptionSpec { + char *name; /* Name of the required option. */ + Tk_OptionType type; /* Accepted option type. TK_OPTION_END means + * any. */ +} Tk_ElementOptionSpec; + +typedef struct Tk_ElementSpec { + int version; /* Version of the style support. */ + char *name; /* Name of element. */ + Tk_ElementOptionSpec *options; + /* List of required options. Last one's name + * must be NULL. */ + Tk_GetElementSizeProc *getSize; + /* Compute the external (resp. internal) size + * of the element from its desired internal + * (resp. external) size. */ + Tk_GetElementBoxProc *getBox; + /* Compute the inscribed or bounding boxes + * within a given area. */ + Tk_GetElementBorderWidthProc *getBorderWidth; + /* Return the element's internal border width. + * Mostly useful for widgets. */ + Tk_DrawElementProc *draw; /* Draw the element in the given bounding + * box. */ +} Tk_ElementSpec; + +/* + * Element state flags. Can be OR'ed. + */ + +#define TK_ELEMENT_STATE_ACTIVE 1<<0 +#define TK_ELEMENT_STATE_DISABLED 1<<1 +#define TK_ELEMENT_STATE_FOCUS 1<<2 +#define TK_ELEMENT_STATE_PRESSED 1<<3 + +/* + *---------------------------------------------------------------------- + * + * The definitions below provide backward compatibility for functions and + * types related to event handling that used to be in Tk but have moved to + * Tcl. + * + *---------------------------------------------------------------------- + */ + +#define TK_READABLE TCL_READABLE +#define TK_WRITABLE TCL_WRITABLE +#define TK_EXCEPTION TCL_EXCEPTION + +#define TK_DONT_WAIT TCL_DONT_WAIT +#define TK_X_EVENTS TCL_WINDOW_EVENTS +#define TK_WINDOW_EVENTS TCL_WINDOW_EVENTS +#define TK_FILE_EVENTS TCL_FILE_EVENTS +#define TK_TIMER_EVENTS TCL_TIMER_EVENTS +#define TK_IDLE_EVENTS TCL_IDLE_EVENTS +#define TK_ALL_EVENTS TCL_ALL_EVENTS + +#define Tk_IdleProc Tcl_IdleProc +#define Tk_FileProc Tcl_FileProc +#define Tk_TimerProc Tcl_TimerProc +#define Tk_TimerToken Tcl_TimerToken + +#define Tk_BackgroundError Tcl_BackgroundError +#define Tk_CancelIdleCall Tcl_CancelIdleCall +#define Tk_CreateFileHandler Tcl_CreateFileHandler +#define Tk_CreateTimerHandler Tcl_CreateTimerHandler +#define Tk_DeleteFileHandler Tcl_DeleteFileHandler +#define Tk_DeleteTimerHandler Tcl_DeleteTimerHandler +#define Tk_DoOneEvent Tcl_DoOneEvent +#define Tk_DoWhenIdle Tcl_DoWhenIdle +#define Tk_Sleep Tcl_Sleep + +/* Additional stuff that has moved to Tcl: */ + +#define Tk_EventuallyFree Tcl_EventuallyFree +#define Tk_FreeProc Tcl_FreeProc +#define Tk_Preserve Tcl_Preserve +#define Tk_Release Tcl_Release + +/* Removed Tk_Main, use macro instead */ +#if defined(_WIN32) || defined(__CYGWIN__) +#define Tk_Main(argc, argv, proc) Tk_MainEx(argc, argv, proc, \ + (Tcl_FindExecutable(0), (Tcl_CreateInterp)())) +#else +#define Tk_Main(argc, argv, proc) Tk_MainEx(argc, argv, proc, \ + (Tcl_FindExecutable(argv[0]), (Tcl_CreateInterp)())) +#endif +const char * Tk_InitStubs(Tcl_Interp *interp, const char *version, + int exact); +EXTERN const char * Tk_PkgInitStubsCheck(Tcl_Interp *interp, + const char *version, int exact); + +#ifndef USE_TK_STUBS +#define Tk_InitStubs(interp, version, exact) \ + Tk_PkgInitStubsCheck(interp, version, exact) +#endif /* USE_TK_STUBS */ + +#define Tk_InitImageArgs(interp, argc, argv) /**/ + +/* + *---------------------------------------------------------------------- + * + * Additional procedure types defined by Tk. + * + *---------------------------------------------------------------------- + */ + +typedef int (Tk_ErrorProc) (ClientData clientData, XErrorEvent *errEventPtr); +typedef void (Tk_EventProc) (ClientData clientData, XEvent *eventPtr); +typedef int (Tk_GenericProc) (ClientData clientData, XEvent *eventPtr); +typedef int (Tk_ClientMessageProc) (Tk_Window tkwin, XEvent *eventPtr); +typedef int (Tk_GetSelProc) (ClientData clientData, Tcl_Interp *interp, + CONST86 char *portion); +typedef void (Tk_LostSelProc) (ClientData clientData); +typedef Tk_RestrictAction (Tk_RestrictProc) (ClientData clientData, + XEvent *eventPtr); +typedef int (Tk_SelectionProc) (ClientData clientData, int offset, + char *buffer, int maxBytes); + +/* + *---------------------------------------------------------------------- + * + * Platform independent exported procedures and variables. + * + *---------------------------------------------------------------------- + */ + +#include "tkDecls.h" + +#ifdef USE_OLD_IMAGE +#undef Tk_CreateImageType +#define Tk_CreateImageType Tk_CreateOldImageType +#undef Tk_CreatePhotoImageFormat +#define Tk_CreatePhotoImageFormat Tk_CreateOldPhotoImageFormat +#endif /* USE_OLD_IMAGE */ + +/* + *---------------------------------------------------------------------- + * + * Allow users to say that they don't want to alter their source to add extra + * arguments to Tk_PhotoPutBlock() et al; DO NOT DEFINE THIS WHEN BUILDING TK. + * + * This goes after the inclusion of the stubbed-decls so that the declarations + * of what is actually there can be correct. + */ + +#ifdef USE_COMPOSITELESS_PHOTO_PUT_BLOCK +# ifdef Tk_PhotoPutBlock +# undef Tk_PhotoPutBlock +# endif +# define Tk_PhotoPutBlock Tk_PhotoPutBlock_NoComposite +# ifdef Tk_PhotoPutZoomedBlock +# undef Tk_PhotoPutZoomedBlock +# endif +# define Tk_PhotoPutZoomedBlock Tk_PhotoPutZoomedBlock_NoComposite +# define USE_PANIC_ON_PHOTO_ALLOC_FAILURE +#else /* !USE_COMPOSITELESS_PHOTO_PUT_BLOCK */ +# ifdef USE_PANIC_ON_PHOTO_ALLOC_FAILURE +# ifdef Tk_PhotoPutBlock +# undef Tk_PhotoPutBlock +# endif +# define Tk_PhotoPutBlock Tk_PhotoPutBlock_Panic +# ifdef Tk_PhotoPutZoomedBlock +# undef Tk_PhotoPutZoomedBlock +# endif +# define Tk_PhotoPutZoomedBlock Tk_PhotoPutZoomedBlock_Panic +# endif /* USE_PANIC_ON_PHOTO_ALLOC_FAILURE */ +#endif /* USE_COMPOSITELESS_PHOTO_PUT_BLOCK */ +#ifdef USE_PANIC_ON_PHOTO_ALLOC_FAILURE +# ifdef Tk_PhotoExpand +# undef Tk_PhotoExpand +# endif +# define Tk_PhotoExpand Tk_PhotoExpand_Panic +# ifdef Tk_PhotoSetSize +# undef Tk_PhotoSetSize +# endif +# define Tk_PhotoSetSize Tk_PhotoSetSize_Panic +#endif /* USE_PANIC_ON_PHOTO_ALLOC_FAILURE */ + +#undef TCL_STORAGE_CLASS +#define TCL_STORAGE_CLASS DLLIMPORT + +#endif /* RC_INVOKED */ + +/* + * end block for C++ + */ + +#ifdef __cplusplus +} +#endif + +#endif /* _TK */ + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |