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* Declarations shared among the files that implement text
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* Copyright (c) 1992-1994 The Regents of the University of California.
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* Copyright (c) 1994-1995 Sun Microsystems, Inc.
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* See the file "license.terms" for information on usage and redistribution
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* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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* RCS: @(#) $Id: tkText.h,v 1.2 1998/09/14 18:23:18 stanton Exp $
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* Opaque types for structures whose guts are only needed by a single
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typedef struct TkTextBTree *TkTextBTree;
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* The data structure below defines a single line of text (from newline
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* to newline, not necessarily what appears on one line of the screen).
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typedef struct TkTextLine {
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struct Node *parentPtr; /* Pointer to parent node containing
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struct TkTextLine *nextPtr; /* Next in linked list of lines with
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* same parent node in B-tree. NULL
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* means end of list. */
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struct TkTextSegment *segPtr; /* First in ordered list of segments
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* that make up the line. */
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* -----------------------------------------------------------------------
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* Segments: each line is divided into one or more segments, where each
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* segment is one of several things, such as a group of characters, a
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* tag toggle, a mark, or an embedded widget. Each segment starts with
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* a standard header followed by a body that varies from type to type.
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* -----------------------------------------------------------------------
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* The data structure below defines the body of a segment that represents
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* a tag toggle. There is one of these structures at both the beginning
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* and end of each tagged range.
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typedef struct TkTextToggle {
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struct TkTextTag *tagPtr; /* Tag that starts or ends here. */
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int inNodeCounts; /* 1 means this toggle has been
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* accounted for in node toggle
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* counts; 0 means it hasn't, yet. */
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* The data structure below defines line segments that represent
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* marks. There is one of these for each mark in the text.
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typedef struct TkTextMark {
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struct TkText *textPtr; /* Overall information about text
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TkTextLine *linePtr; /* Line structure that contains the
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Tcl_HashEntry *hPtr; /* Pointer to hash table entry for mark
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* (in textPtr->markTable). */
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* A structure of the following type holds information for each window
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* embedded in a text widget. This information is only used by the
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typedef struct TkTextEmbWindow {
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struct TkText *textPtr; /* Information about the overall text
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TkTextLine *linePtr; /* Line structure that contains this
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Tk_Window tkwin; /* Window for this segment. NULL
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* means that the window hasn't
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* been created yet. */
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char *create; /* Script to create window on-demand.
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* NULL means no such script.
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int align; /* How to align window in vertical
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* space. See definitions in
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int padX, padY; /* Padding to leave around each side
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* of window, in pixels. */
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int stretch; /* Should window stretch to fill
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* vertical space of line (except for
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int chunkCount; /* Number of display chunks that
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* refer to this window. */
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int displayed; /* Non-zero means that the window
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* has been displayed on the screen
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* A structure of the following type holds information for each image
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* embedded in a text widget. This information is only used by the
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typedef struct TkTextEmbImage {
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struct TkText *textPtr; /* Information about the overall text
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TkTextLine *linePtr; /* Line structure that contains this
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char *imageString; /* Name of the image for this segment */
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char *imageName; /* Name used by text widget to identify
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* this image. May be unique-ified */
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char *name; /* Name used in the hash table.
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* used by "image names" to identify
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* this instance of the image */
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Tk_Image image; /* Image for this segment. NULL
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* means that the image hasn't
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* been created yet. */
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int align; /* How to align image in vertical
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* space. See definitions in
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int padX, padY; /* Padding to leave around each side
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* of image, in pixels. */
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int chunkCount; /* Number of display chunks that
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* refer to this image. */
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* The data structure below defines line segments.
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typedef struct TkTextSegment {
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struct Tk_SegType *typePtr; /* Pointer to record describing
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struct TkTextSegment *nextPtr; /* Next in list of segments for this
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* line, or NULL for end of list. */
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int size; /* Size of this segment (# of bytes
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* of index space it occupies). */
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char chars[4]; /* Characters that make up character
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* info. Actual length varies to
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* hold as many characters as needed.*/
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TkTextToggle toggle; /* Information about tag toggle. */
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TkTextMark mark; /* Information about mark. */
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TkTextEmbWindow ew; /* Information about embedded
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TkTextEmbImage ei; /* Information about embedded
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* Data structures of the type defined below are used during the
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* execution of Tcl commands to keep track of various interesting
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* places in a text. An index is only valid up until the next
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* modification to the character structure of the b-tree so they
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* can't be retained across Tcl commands. However, mods to marks
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* or tags don't invalidate indices.
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typedef struct TkTextIndex {
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TkTextBTree tree; /* Tree containing desired position. */
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TkTextLine *linePtr; /* Pointer to line containing position
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int charIndex; /* Index within line of desired
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* character (0 means first one). */
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* Types for procedure pointers stored in TkTextDispChunk strutures:
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typedef struct TkTextDispChunk TkTextDispChunk;
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typedef void Tk_ChunkDisplayProc _ANSI_ARGS_((
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TkTextDispChunk *chunkPtr, int x, int y,
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int height, int baseline, Display *display,
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Drawable dst, int screenY));
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typedef void Tk_ChunkUndisplayProc _ANSI_ARGS_((
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struct TkText *textPtr,
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TkTextDispChunk *chunkPtr));
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typedef int Tk_ChunkMeasureProc _ANSI_ARGS_((
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TkTextDispChunk *chunkPtr, int x));
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typedef void Tk_ChunkBboxProc _ANSI_ARGS_((
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TkTextDispChunk *chunkPtr, int index, int y,
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int lineHeight, int baseline, int *xPtr,
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int *yPtr, int *widthPtr, int *heightPtr));
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* The structure below represents a chunk of stuff that is displayed
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* together on the screen. This structure is allocated and freed by
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* generic display code but most of its fields are filled in by
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* segment-type-specific code.
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struct TkTextDispChunk {
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* The fields below are set by the type-independent code before
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* calling the segment-type-specific layoutProc. They should not
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* be modified by segment-type-specific code.
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int x; /* X position of chunk, in pixels.
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* This position is measured from the
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* left edge of the logical line,
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* not from the left edge of the
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* window (i.e. it doesn't change
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* under horizontal scrolling). */
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struct TkTextDispChunk *nextPtr; /* Next chunk in the display line
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* or NULL for the end of the list. */
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struct TextStyle *stylePtr; /* Display information, known only
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* to tkTextDisp.c. */
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* The fields below are set by the layoutProc that creates the
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Tk_ChunkDisplayProc *displayProc; /* Procedure to invoke to draw this
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* chunk on the display or an
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* off-screen pixmap. */
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Tk_ChunkUndisplayProc *undisplayProc;
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/* Procedure to invoke when segment
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* ceases to be displayed on screen
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Tk_ChunkMeasureProc *measureProc; /* Procedure to find character under
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* a given x-location. */
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Tk_ChunkBboxProc *bboxProc; /* Procedure to find bounding box
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* of character in chunk. */
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int numChars; /* Number of characters that will be
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* displayed in the chunk. */
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int minAscent; /* Minimum space above the baseline
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* needed by this chunk. */
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int minDescent; /* Minimum space below the baseline
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* needed by this chunk. */
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int minHeight; /* Minimum total line height needed
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int width; /* Width of this chunk, in pixels.
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* Initially set by chunk-specific
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* code, but may be increased to
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* include tab or extra space at end
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int breakIndex; /* Index within chunk of last
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* acceptable position for a line
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* (break just before this character).
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* <= 0 means don't break during or
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* immediately after this chunk. */
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ClientData clientData; /* Additional information for use
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* of displayProc and undisplayProc. */
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* One data structure of the following type is used for each tag in a
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* text widget. These structures are kept in textPtr->tagTable and
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* referred to in other structures.
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typedef struct TkTextTag {
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char *name; /* Name of this tag. This field is actually
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* a pointer to the key from the entry in
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* textPtr->tagTable, so it needn't be freed
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int priority; /* Priority of this tag within widget. 0
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* means lowest priority. Exactly one tag
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* has each integer value between 0 and
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struct Node *tagRootPtr; /* Pointer into the B-Tree at the lowest
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* node that completely dominates the ranges
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* of text occupied by the tag. At this
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* node there is no information about the
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* tag. One or more children of the node
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* do contain information about the tag. */
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int toggleCount; /* Total number of tag toggles */
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* Information for displaying text with this tag. The information
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* belows acts as an override on information specified by lower-priority
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* tags. If no value is specified, then the next-lower-priority tag
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* on the text determins the value. The text widget itself provides
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* defaults if no tag specifies an override.
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Tk_3DBorder border; /* Used for drawing background. NULL means
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* no value specified here. */
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char *bdString; /* -borderwidth option string (malloc-ed).
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* NULL means option not specified. */
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int borderWidth; /* Width of 3-D border for background. */
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char *reliefString; /* -relief option string (malloc-ed).
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* NULL means option not specified. */
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int relief; /* 3-D relief for background. */
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Pixmap bgStipple; /* Stipple bitmap for background. None
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* means no value specified here. */
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XColor *fgColor; /* Foreground color for text. NULL means
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* no value specified here. */
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Tk_Font tkfont; /* Font for displaying text. NULL means
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* no value specified here. */
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Pixmap fgStipple; /* Stipple bitmap for text and other
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* foreground stuff. None means no value
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char *justifyString; /* -justify option string (malloc-ed).
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* NULL means option not specified. */
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Tk_Justify justify; /* How to justify text: TK_JUSTIFY_LEFT,
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* TK_JUSTIFY_RIGHT, or TK_JUSTIFY_CENTER.
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* Only valid if justifyString is non-NULL. */
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char *lMargin1String; /* -lmargin1 option string (malloc-ed).
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* NULL means option not specified. */
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int lMargin1; /* Left margin for first display line of
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* each text line, in pixels. Only valid
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* if lMargin1String is non-NULL. */
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char *lMargin2String; /* -lmargin2 option string (malloc-ed).
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* NULL means option not specified. */
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int lMargin2; /* Left margin for second and later display
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* lines of each text line, in pixels. Only
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* valid if lMargin2String is non-NULL. */
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char *offsetString; /* -offset option string (malloc-ed).
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* NULL means option not specified. */
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int offset; /* Vertical offset of text's baseline from
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* baseline of line. Used for superscripts
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* and subscripts. Only valid if
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* offsetString is non-NULL. */
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char *overstrikeString; /* -overstrike option string (malloc-ed).
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* NULL means option not specified. */
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int overstrike; /* Non-zero means draw horizontal line through
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* middle of text. Only valid if
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* overstrikeString is non-NULL. */
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char *rMarginString; /* -rmargin option string (malloc-ed).
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* NULL means option not specified. */
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int rMargin; /* Right margin for text, in pixels. Only
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* valid if rMarginString is non-NULL. */
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char *spacing1String; /* -spacing1 option string (malloc-ed).
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* NULL means option not specified. */
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int spacing1; /* Extra spacing above first display
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* line for text line. Only valid if
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* spacing1String is non-NULL. */
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char *spacing2String; /* -spacing2 option string (malloc-ed).
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* NULL means option not specified. */
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int spacing2; /* Extra spacing between display
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* lines for the same text line. Only valid
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* if spacing2String is non-NULL. */
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char *spacing3String; /* -spacing2 option string (malloc-ed).
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* NULL means option not specified. */
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int spacing3; /* Extra spacing below last display
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* line for text line. Only valid if
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* spacing3String is non-NULL. */
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char *tabString; /* -tabs option string (malloc-ed).
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* NULL means option not specified. */
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struct TkTextTabArray *tabArrayPtr;
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/* Info about tabs for tag (malloc-ed)
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* or NULL. Corresponds to tabString. */
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char *underlineString; /* -underline option string (malloc-ed).
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* NULL means option not specified. */
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int underline; /* Non-zero means draw underline underneath
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* text. Only valid if underlineString is
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Tk_Uid wrapMode; /* How to handle wrap-around for this tag.
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* Must be tkTextCharUid, tkTextNoneUid,
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* tkTextWordUid, or NULL to use wrapMode
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* for whole widget. */
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int affectsDisplay; /* Non-zero means that this tag affects the
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* way information is displayed on the screen
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* (so need to redisplay if tag changes). */
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#define TK_TAG_AFFECTS_DISPLAY 0x1
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#define TK_TAG_UNDERLINE 0x2
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#define TK_TAG_JUSTIFY 0x4
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#define TK_TAG_OFFSET 0x10
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* The data structure below is used for searching a B-tree for transitions
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* on a single tag (or for all tag transitions). No code outside of
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* tkTextBTree.c should ever modify any of the fields in these structures,
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* but it's OK to use them for read-only information.
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typedef struct TkTextSearch {
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TkTextIndex curIndex; /* Position of last tag transition
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* returned by TkBTreeNextTag, or
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* index of start of segment
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* containing starting position for
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* search if TkBTreeNextTag hasn't
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* been called yet, or same as
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* stopIndex if search is over. */
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TkTextSegment *segPtr; /* Actual tag segment returned by last
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* call to TkBTreeNextTag, or NULL if
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* TkBTreeNextTag hasn't returned
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TkTextSegment *nextPtr; /* Where to resume search in next
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* call to TkBTreeNextTag. */
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TkTextSegment *lastPtr; /* Stop search before just before
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* considering this segment. */
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TkTextTag *tagPtr; /* Tag to search for (or tag found, if
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* allTags is non-zero). */
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int linesLeft; /* Lines left to search (including
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* curIndex and stopIndex). When
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* this becomes <= 0 the search is
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int allTags; /* Non-zero means ignore tag check:
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* search for transitions on all
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* The following data structure describes a single tab stop.
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typedef enum {LEFT, RIGHT, CENTER, NUMERIC} TkTextTabAlign;
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typedef struct TkTextTab {
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int location; /* Offset in pixels of this tab stop
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* from the left margin (lmargin2) of
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TkTextTabAlign alignment; /* Where the tab stop appears relative
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typedef struct TkTextTabArray {
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int numTabs; /* Number of tab stops. */
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TkTextTab tabs[1]; /* Array of tabs. The actual size
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* will be numTabs. THIS FIELD MUST
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* BE THE LAST IN THE STRUCTURE. */
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* A data structure of the following type is kept for each text widget that
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* currently exists for this process:
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typedef struct TkText {
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Tk_Window tkwin; /* Window that embodies the text. NULL
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* means that the window has been destroyed
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* but the data structures haven't yet been
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Display *display; /* Display for widget. Needed, among other
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* things, to allow resources to be freed
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* even after tkwin has gone away. */
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Tcl_Interp *interp; /* Interpreter associated with widget. Used
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* to delete widget command. */
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Tcl_Command widgetCmd; /* Token for text's widget command. */
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TkTextBTree tree; /* B-tree representation of text and tags for
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Tcl_HashTable tagTable; /* Hash table that maps from tag names to
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* pointers to TkTextTag structures. */
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int numTags; /* Number of tags currently defined for
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* widget; needed to keep track of
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Tcl_HashTable markTable; /* Hash table that maps from mark names to
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* pointers to mark segments. */
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Tcl_HashTable windowTable; /* Hash table that maps from window names
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* to pointers to window segments. If a
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* window segment doesn't yet have an
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* associated window, there is no entry for
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Tcl_HashTable imageTable; /* Hash table that maps from image names
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* to pointers to image segments. If an
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* image segment doesn't yet have an
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* associated image, there is no entry for
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Tk_Uid state; /* Normal or disabled. Text is read-only
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* Default information for displaying (may be overridden by tags
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* applied to ranges of characters).
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Tk_3DBorder border; /* Structure used to draw 3-D border and
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* default background. */
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int borderWidth; /* Width of 3-D border to draw around entire
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int padX, padY; /* Padding between text and window border. */
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int relief; /* 3-d effect for border around entire
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* widget: TK_RELIEF_RAISED etc. */
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int highlightWidth; /* Width in pixels of highlight to draw
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* around widget when it has the focus.
490
* <= 0 means don't draw a highlight. */
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XColor *highlightBgColorPtr;
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/* Color for drawing traversal highlight
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* area when highlight is off. */
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XColor *highlightColorPtr; /* Color for drawing traversal highlight. */
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Tk_Cursor cursor; /* Current cursor for window, or None. */
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XColor *fgColor; /* Default foreground color for text. */
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Tk_Font tkfont; /* Default font for displaying text. */
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int charWidth; /* Width of average character in default
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int spacing1; /* Default extra spacing above first display
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* line for each text line. */
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int spacing2; /* Default extra spacing between display lines
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* for the same text line. */
504
int spacing3; /* Default extra spacing below last display
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* line for each text line. */
506
char *tabOptionString; /* Value of -tabs option string (malloc'ed). */
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TkTextTabArray *tabArrayPtr;
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/* Information about tab stops (malloc'ed).
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* NULL means perform default tabbing
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* Additional information used for displaying:
516
Tk_Uid wrapMode; /* How to handle wrap-around. Must be
517
* tkTextCharUid, tkTextNoneUid, or
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int width, height; /* Desired dimensions for window, measured
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int setGrid; /* Non-zero means pass gridding information
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* to window manager. */
523
int prevWidth, prevHeight; /* Last known dimensions of window; used to
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* detect changes in size. */
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TkTextIndex topIndex; /* Identifies first character in top display
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struct TextDInfo *dInfoPtr; /* Information maintained by tkTextDisp.c. */
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* Information related to selection.
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TkTextTag *selTagPtr; /* Pointer to "sel" tag. Used to tell when
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* a new selection has been made. */
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Tk_3DBorder selBorder; /* Border and background for selected
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* characters. This is a copy of information
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* in *cursorTagPtr, so it shouldn't be
538
* explicitly freed. */
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char *selBdString; /* Value of -selectborderwidth option, or NULL
540
* if not specified (malloc'ed). */
541
XColor *selFgColorPtr; /* Foreground color for selected text.
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* This is a copy of information in
543
* *cursorTagPtr, so it shouldn't be
544
* explicitly freed. */
545
int exportSelection; /* Non-zero means tie "sel" tag to X
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TkTextIndex selIndex; /* Used during multi-pass selection retrievals.
548
* This index identifies the next character
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* to be returned from the selection. */
550
int abortSelections; /* Set to 1 whenever the text is modified
551
* in a way that interferes with selection
552
* retrieval: used to abort incremental
553
* selection retrievals. */
554
int selOffset; /* Offset in selection corresponding to
555
* selLine and selCh. -1 means neither
556
* this information nor selIndex is of any
560
* Information related to insertion cursor:
563
TkTextSegment *insertMarkPtr;
564
/* Points to segment for "insert" mark. */
565
Tk_3DBorder insertBorder; /* Used to draw vertical bar for insertion
567
int insertWidth; /* Total width of insert cursor. */
568
int insertBorderWidth; /* Width of 3-D border around insert cursor. */
569
int insertOnTime; /* Number of milliseconds cursor should spend
570
* in "on" state for each blink. */
571
int insertOffTime; /* Number of milliseconds cursor should spend
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* in "off" state for each blink. */
573
Tcl_TimerToken insertBlinkHandler;
574
/* Timer handler used to blink cursor on and
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* Information used for event bindings associated with tags:
581
Tk_BindingTable bindingTable;
582
/* Table of all bindings currently defined
583
* for this widget. NULL means that no
584
* bindings exist, so the table hasn't been
585
* created. Each "object" used for this
586
* table is the address of a tag. */
587
TkTextSegment *currentMarkPtr;
588
/* Pointer to segment for "current" mark,
589
* or NULL if none. */
590
XEvent pickEvent; /* The event from which the current character
591
* was chosen. Must be saved so that we
592
* can repick after modifications to the
594
int numCurTags; /* Number of tags associated with character
595
* at current mark. */
596
TkTextTag **curTagArrayPtr; /* Pointer to array of tags for current
597
* mark, or NULL if none. */
600
* Miscellaneous additional information:
603
char *takeFocus; /* Value of -takeFocus option; not used in
604
* the C code, but used by keyboard traversal
605
* scripts. Malloc'ed, but may be NULL. */
606
char *xScrollCmd; /* Prefix of command to issue to update
607
* horizontal scrollbar when view changes. */
608
char *yScrollCmd; /* Prefix of command to issue to update
609
* vertical scrollbar when view changes. */
610
int flags; /* Miscellaneous flags; see below for
615
* Flag values for TkText records:
617
* GOT_SELECTION: Non-zero means we've already claimed the
619
* INSERT_ON: Non-zero means insertion cursor should be
620
* displayed on screen.
621
* GOT_FOCUS: Non-zero means this window has the input
623
* BUTTON_DOWN: 1 means that a mouse button is currently
624
* down; this is used to implement grabs
625
* for the duration of button presses.
626
* UPDATE_SCROLLBARS: Non-zero means scrollbar(s) should be updated
627
* during next redisplay operation.
630
#define GOT_SELECTION 1
633
#define BUTTON_DOWN 8
634
#define UPDATE_SCROLLBARS 0x10
635
#define NEED_REPICK 0x20
638
* Records of the following type define segment types in terms of
639
* a collection of procedures that may be called to manipulate
640
* segments of that type.
643
typedef TkTextSegment * Tk_SegSplitProc _ANSI_ARGS_((
644
struct TkTextSegment *segPtr, int index));
645
typedef int Tk_SegDeleteProc _ANSI_ARGS_((
646
struct TkTextSegment *segPtr,
647
TkTextLine *linePtr, int treeGone));
648
typedef TkTextSegment * Tk_SegCleanupProc _ANSI_ARGS_((
649
struct TkTextSegment *segPtr, TkTextLine *linePtr));
650
typedef void Tk_SegLineChangeProc _ANSI_ARGS_((
651
struct TkTextSegment *segPtr, TkTextLine *linePtr));
652
typedef int Tk_SegLayoutProc _ANSI_ARGS_((struct TkText *textPtr,
653
struct TkTextIndex *indexPtr, TkTextSegment *segPtr,
654
int offset, int maxX, int maxChars,
655
int noCharsYet, Tk_Uid wrapMode,
656
struct TkTextDispChunk *chunkPtr));
657
typedef void Tk_SegCheckProc _ANSI_ARGS_((TkTextSegment *segPtr,
658
TkTextLine *linePtr));
660
typedef struct Tk_SegType {
661
char *name; /* Name of this kind of segment. */
662
int leftGravity; /* If a segment has zero size (e.g. a
663
* mark or tag toggle), does it
664
* attach to character to its left
665
* or right? 1 means left, 0 means
667
Tk_SegSplitProc *splitProc; /* Procedure to split large segment
668
* into two smaller ones. */
669
Tk_SegDeleteProc *deleteProc; /* Procedure to call to delete
671
Tk_SegCleanupProc *cleanupProc; /* After any change to a line, this
672
* procedure is invoked for all
673
* segments left in the line to
674
* perform any cleanup they wish
675
* (e.g. joining neighboring
677
Tk_SegLineChangeProc *lineChangeProc;
678
/* Invoked when a segment is about
679
* to be moved from its current line
680
* to an earlier line because of
681
* a deletion. The linePtr is that
682
* for the segment's old line.
683
* CleanupProc will be invoked after
684
* the deletion is finished. */
685
Tk_SegLayoutProc *layoutProc; /* Returns size information when
686
* figuring out what to display in
688
Tk_SegCheckProc *checkProc; /* Called during consistency checks
689
* to check internal consistency of
694
* The constant below is used to specify a line when what is really
695
* wanted is the entire text. For now, just use a very big number.
698
#define TK_END_OF_TEXT 1000000
701
* The following definition specifies the maximum number of characters
702
* needed in a string to hold a position specifier.
705
#define TK_POS_CHARS 30
708
* Declarations for variables shared among the text-related files:
711
extern int tkBTreeDebug;
712
extern int tkTextDebug;
713
extern Tk_SegType tkTextCharType;
714
extern Tk_Uid tkTextCharUid;
715
extern Tk_Uid tkTextDisabledUid;
716
extern Tk_SegType tkTextLeftMarkType;
717
extern Tk_Uid tkTextNoneUid;
718
extern Tk_Uid tkTextNormalUid;
719
extern Tk_SegType tkTextRightMarkType;
720
extern Tk_SegType tkTextToggleOnType;
721
extern Tk_SegType tkTextToggleOffType;
722
extern Tk_Uid tkTextWordUid;
725
* Declarations for procedures that are used by the text-related files
726
* but shouldn't be used anywhere else in Tk (or by Tk clients):
729
extern int TkBTreeCharTagged _ANSI_ARGS_((TkTextIndex *indexPtr,
731
extern void TkBTreeCheck _ANSI_ARGS_((TkTextBTree tree));
732
extern int TkBTreeCharsInLine _ANSI_ARGS_((TkTextLine *linePtr));
733
extern TkTextBTree TkBTreeCreate _ANSI_ARGS_((TkText *textPtr));
734
extern void TkBTreeDestroy _ANSI_ARGS_((TkTextBTree tree));
735
extern void TkBTreeDeleteChars _ANSI_ARGS_((TkTextIndex *index1Ptr,
736
TkTextIndex *index2Ptr));
737
extern TkTextLine * TkBTreeFindLine _ANSI_ARGS_((TkTextBTree tree,
739
extern TkTextTag ** TkBTreeGetTags _ANSI_ARGS_((TkTextIndex *indexPtr,
741
extern void TkBTreeInsertChars _ANSI_ARGS_((TkTextIndex *indexPtr,
743
extern int TkBTreeLineIndex _ANSI_ARGS_((TkTextLine *linePtr));
744
extern void TkBTreeLinkSegment _ANSI_ARGS_((TkTextSegment *segPtr,
745
TkTextIndex *indexPtr));
746
extern TkTextLine * TkBTreeNextLine _ANSI_ARGS_((TkTextLine *linePtr));
747
extern int TkBTreeNextTag _ANSI_ARGS_((TkTextSearch *searchPtr));
748
extern int TkBTreeNumLines _ANSI_ARGS_((TkTextBTree tree));
749
extern TkTextLine * TkBTreePreviousLine _ANSI_ARGS_((TkTextLine *linePtr));
750
extern int TkBTreePrevTag _ANSI_ARGS_((TkTextSearch *searchPtr));
751
extern void TkBTreeStartSearch _ANSI_ARGS_((TkTextIndex *index1Ptr,
752
TkTextIndex *index2Ptr, TkTextTag *tagPtr,
753
TkTextSearch *searchPtr));
754
extern void TkBTreeStartSearchBack _ANSI_ARGS_((TkTextIndex *index1Ptr,
755
TkTextIndex *index2Ptr, TkTextTag *tagPtr,
756
TkTextSearch *searchPtr));
757
extern void TkBTreeTag _ANSI_ARGS_((TkTextIndex *index1Ptr,
758
TkTextIndex *index2Ptr, TkTextTag *tagPtr,
760
extern void TkBTreeUnlinkSegment _ANSI_ARGS_((TkTextBTree tree,
761
TkTextSegment *segPtr, TkTextLine *linePtr));
762
extern void TkTextBindProc _ANSI_ARGS_((ClientData clientData,
764
extern void TkTextChanged _ANSI_ARGS_((TkText *textPtr,
765
TkTextIndex *index1Ptr, TkTextIndex *index2Ptr));
766
extern int TkTextCharBbox _ANSI_ARGS_((TkText *textPtr,
767
TkTextIndex *indexPtr, int *xPtr, int *yPtr,
768
int *widthPtr, int *heightPtr));
769
extern int TkTextCharLayoutProc _ANSI_ARGS_((TkText *textPtr,
770
TkTextIndex *indexPtr, TkTextSegment *segPtr,
771
int offset, int maxX, int maxChars, int noBreakYet,
772
Tk_Uid wrapMode, TkTextDispChunk *chunkPtr));
773
extern void TkTextCreateDInfo _ANSI_ARGS_((TkText *textPtr));
774
extern int TkTextDLineInfo _ANSI_ARGS_((TkText *textPtr,
775
TkTextIndex *indexPtr, int *xPtr, int *yPtr,
776
int *widthPtr, int *heightPtr, int *basePtr));
777
extern TkTextTag * TkTextCreateTag _ANSI_ARGS_((TkText *textPtr,
779
extern void TkTextFreeDInfo _ANSI_ARGS_((TkText *textPtr));
780
extern void TkTextFreeTag _ANSI_ARGS_((TkText *textPtr,
782
extern int TkTextGetIndex _ANSI_ARGS_((Tcl_Interp *interp,
783
TkText *textPtr, char *string,
784
TkTextIndex *indexPtr));
785
extern TkTextTabArray * TkTextGetTabs _ANSI_ARGS_((Tcl_Interp *interp,
786
Tk_Window tkwin, char *string));
787
extern void TkTextIndexBackChars _ANSI_ARGS_((TkTextIndex *srcPtr,
788
int count, TkTextIndex *dstPtr));
789
extern int TkTextIndexCmp _ANSI_ARGS_((TkTextIndex *index1Ptr,
790
TkTextIndex *index2Ptr));
791
extern void TkTextIndexForwChars _ANSI_ARGS_((TkTextIndex *srcPtr,
792
int count, TkTextIndex *dstPtr));
793
extern TkTextSegment * TkTextIndexToSeg _ANSI_ARGS_((TkTextIndex *indexPtr,
795
extern void TkTextInsertDisplayProc _ANSI_ARGS_((
796
TkTextDispChunk *chunkPtr, int x, int y, int height,
797
int baseline, Display *display, Drawable dst,
799
extern void TkTextLostSelection _ANSI_ARGS_((
800
ClientData clientData));
801
extern TkTextIndex * TkTextMakeIndex _ANSI_ARGS_((TkTextBTree tree,
802
int lineIndex, int charIndex,
803
TkTextIndex *indexPtr));
804
extern int TkTextMarkCmd _ANSI_ARGS_((TkText *textPtr,
805
Tcl_Interp *interp, int argc, char **argv));
806
extern int TkTextMarkNameToIndex _ANSI_ARGS_((TkText *textPtr,
807
char *name, TkTextIndex *indexPtr));
808
extern void TkTextMarkSegToIndex _ANSI_ARGS_((TkText *textPtr,
809
TkTextSegment *markPtr, TkTextIndex *indexPtr));
810
extern void TkTextEventuallyRepick _ANSI_ARGS_((TkText *textPtr));
811
extern void TkTextPickCurrent _ANSI_ARGS_((TkText *textPtr,
813
extern void TkTextPixelIndex _ANSI_ARGS_((TkText *textPtr,
814
int x, int y, TkTextIndex *indexPtr));
815
extern void TkTextPrintIndex _ANSI_ARGS_((TkTextIndex *indexPtr,
817
extern void TkTextRedrawRegion _ANSI_ARGS_((TkText *textPtr,
818
int x, int y, int width, int height));
819
extern void TkTextRedrawTag _ANSI_ARGS_((TkText *textPtr,
820
TkTextIndex *index1Ptr, TkTextIndex *index2Ptr,
821
TkTextTag *tagPtr, int withTag));
822
extern void TkTextRelayoutWindow _ANSI_ARGS_((TkText *textPtr));
823
extern int TkTextScanCmd _ANSI_ARGS_((TkText *textPtr,
824
Tcl_Interp *interp, int argc, char **argv));
825
extern int TkTextSeeCmd _ANSI_ARGS_((TkText *textPtr,
826
Tcl_Interp *interp, int argc, char **argv));
827
extern int TkTextSegToOffset _ANSI_ARGS_((TkTextSegment *segPtr,
828
TkTextLine *linePtr));
829
extern TkTextSegment * TkTextSetMark _ANSI_ARGS_((TkText *textPtr, char *name,
830
TkTextIndex *indexPtr));
831
extern void TkTextSetYView _ANSI_ARGS_((TkText *textPtr,
832
TkTextIndex *indexPtr, int pickPlace));
833
extern int TkTextTagCmd _ANSI_ARGS_((TkText *textPtr,
834
Tcl_Interp *interp, int argc, char **argv));
835
extern int TkTextImageCmd _ANSI_ARGS_((TkText *textPtr,
836
Tcl_Interp *interp, int argc, char **argv));
837
extern int TkTextImageIndex _ANSI_ARGS_((TkText *textPtr,
838
char *name, TkTextIndex *indexPtr));
839
extern int TkTextWindowCmd _ANSI_ARGS_((TkText *textPtr,
840
Tcl_Interp *interp, int argc, char **argv));
841
extern int TkTextWindowIndex _ANSI_ARGS_((TkText *textPtr,
842
char *name, TkTextIndex *indexPtr));
843
extern int TkTextXviewCmd _ANSI_ARGS_((TkText *textPtr,
844
Tcl_Interp *interp, int argc, char **argv));
845
extern int TkTextYviewCmd _ANSI_ARGS_((TkText *textPtr,
846
Tcl_Interp *interp, int argc, char **argv));
added
removed
generic/tkText.h
