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-rw-r--r--generic/tkText.h1430
1 files changed, 842 insertions, 588 deletions
diff --git a/generic/tkText.h b/generic/tkText.h
index 6331735..4ffdc8a 100644
--- a/generic/tkText.h
+++ b/generic/tkText.h
@@ -1,14 +1,13 @@
/*
* tkText.h --
*
- * Declarations shared among the files that implement text
- * widgets.
+ * Declarations shared among the files that implement text widgets.
*
* Copyright (c) 1992-1994 The Regents of the University of California.
* Copyright (c) 1994-1995 Sun Microsystems, Inc.
*
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#ifndef _TKTEXT
@@ -28,122 +27,142 @@
#endif
/*
- * Opaque types for structures whose guts are only needed by a single
- * file:
+ * Opaque types for structures whose guts are only needed by a single file.
*/
typedef struct TkTextBTree_ *TkTextBTree;
/*
- * The data structure below defines a single line of text (from newline
- * to newline, not necessarily what appears on one line of the screen).
+ * The data structure below defines a single logical line of text (from
+ * newline to newline, not necessarily what appears on one display line of the
+ * screen).
*/
typedef struct TkTextLine {
- struct Node *parentPtr; /* Pointer to parent node containing
- * line. */
- struct TkTextLine *nextPtr; /* Next in linked list of lines with
- * same parent node in B-tree. NULL
- * means end of list. */
- struct TkTextSegment *segPtr; /* First in ordered list of segments
- * that make up the line. */
+ struct Node *parentPtr; /* Pointer to parent node containing line. */
+ struct TkTextLine *nextPtr; /* Next in linked list of lines with same
+ * parent node in B-tree. NULL means end of
+ * list. */
+ struct TkTextSegment *segPtr;
+ /* First in ordered list of segments that make
+ * up the line. */
+ int *pixels; /* Array containing two integers for each
+ * referring text widget. The first of these
+ * is the number of vertical pixels taken up
+ * by this line, whether currently displayed
+ * or not. This number is only updated
+ * asychronously. The second of these is the
+ * last epoch at which the pixel height was
+ * recalculated. */
} TkTextLine;
/*
* -----------------------------------------------------------------------
* Segments: each line is divided into one or more segments, where each
- * segment is one of several things, such as a group of characters, a
- * tag toggle, a mark, or an embedded widget. Each segment starts with
- * a standard header followed by a body that varies from type to type.
+ * segment is one of several things, such as a group of characters, a tag
+ * toggle, a mark, or an embedded widget. Each segment starts with a standard
+ * header followed by a body that varies from type to type.
* -----------------------------------------------------------------------
*/
/*
- * The data structure below defines the body of a segment that represents
- * a tag toggle. There is one of these structures at both the beginning
- * and end of each tagged range.
+ * The data structure below defines the body of a segment that represents a
+ * tag toggle. There is one of these structures at both the beginning and end
+ * of each tagged range.
*/
typedef struct TkTextToggle {
- struct TkTextTag *tagPtr; /* Tag that starts or ends here. */
- int inNodeCounts; /* 1 means this toggle has been
- * accounted for in node toggle
- * counts; 0 means it hasn't, yet. */
+ struct TkTextTag *tagPtr; /* Tag that starts or ends here. */
+ int inNodeCounts; /* 1 means this toggle has been accounted for
+ * in node toggle counts; 0 means it hasn't,
+ * yet. */
} TkTextToggle;
/*
- * The data structure below defines line segments that represent
- * marks. There is one of these for each mark in the text.
+ * The data structure below defines line segments that represent marks. There
+ * is one of these for each mark in the text.
*/
typedef struct TkTextMark {
- struct TkText *textPtr; /* Overall information about text
- * widget. */
- TkTextLine *linePtr; /* Line structure that contains the
- * segment. */
- Tcl_HashEntry *hPtr; /* Pointer to hash table entry for mark
- * (in textPtr->markTable). */
+ struct TkText *textPtr; /* Overall information about text widget. */
+ TkTextLine *linePtr; /* Line structure that contains the
+ * segment. */
+ Tcl_HashEntry *hPtr; /* Pointer to hash table entry for mark (in
+ * sharedTextPtr->markTable). */
} TkTextMark;
/*
* A structure of the following type holds information for each window
- * embedded in a text widget. This information is only used by the
- * file tkTextWind.c
+ * embedded in a text widget. This information is only used by the file
+ * tkTextWind.c
*/
+typedef struct TkTextEmbWindowClient {
+ struct TkText *textPtr; /* Information about the overall text
+ * widget. */
+ Tk_Window tkwin; /* Window for this segment. NULL means that
+ * the window hasn't been created yet. */
+ int chunkCount; /* Number of display chunks that refer to this
+ * window. */
+ int displayed; /* Non-zero means that the window has been
+ * displayed on the screen recently. */
+ struct TkTextSegment *parent;
+ struct TkTextEmbWindowClient *next;
+} TkTextEmbWindowClient;
+
typedef struct TkTextEmbWindow {
- struct TkText *textPtr; /* Information about the overall text
- * widget. */
- TkTextLine *linePtr; /* Line structure that contains this
- * window. */
- Tk_Window tkwin; /* Window for this segment. NULL
- * means that the window hasn't
- * been created yet. */
- char *create; /* Script to create window on-demand.
- * NULL means no such script.
- * Malloc-ed. */
- int align; /* How to align window in vertical
- * space. See definitions in
- * tkTextWind.c. */
- int padX, padY; /* Padding to leave around each side
- * of window, in pixels. */
- int stretch; /* Should window stretch to fill
- * vertical space of line (except for
- * pady)? 0 or 1. */
- int chunkCount; /* Number of display chunks that
- * refer to this window. */
- int displayed; /* Non-zero means that the window
- * has been displayed on the screen
- * recently. */
+ struct TkSharedText *sharedTextPtr;
+ /* Information about the shared portion of the
+ * text widget. */
+ Tk_Window tkwin; /* Window for this segment. This is just a
+ * temporary value, copied from 'clients', to
+ * make option table updating easier. NULL
+ * means that the window hasn't been created
+ * yet. */
+ TkTextLine *linePtr; /* Line structure that contains this
+ * window. */
+ char *create; /* Script to create window on-demand. NULL
+ * means no such script. Malloc-ed. */
+ int align; /* How to align window in vertical space. See
+ * definitions in tkTextWind.c. */
+ int padX, padY; /* Padding to leave around each side of
+ * window, in pixels. */
+ int stretch; /* Should window stretch to fill vertical
+ * space of line (except for pady)? 0 or 1. */
+ Tk_OptionTable optionTable; /* Token representing the configuration
+ * specifications. */
+ TkTextEmbWindowClient *clients;
+ /* Linked list of peer-widget specific
+ * information for this embedded window. */
} TkTextEmbWindow;
/*
- * A structure of the following type holds information for each image
- * embedded in a text widget. This information is only used by the
- * file tkTextImage.c
+ * A structure of the following type holds information for each image embedded
+ * in a text widget. This information is only used by the file tkTextImage.c
*/
typedef struct TkTextEmbImage {
- struct TkText *textPtr; /* Information about the overall text
- * widget. */
- TkTextLine *linePtr; /* Line structure that contains this
- * image. */
- char *imageString; /* Name of the image for this segment */
- char *imageName; /* Name used by text widget to identify
- * this image. May be unique-ified */
- char *name; /* Name used in the hash table.
- * used by "image names" to identify
- * this instance of the image */
- Tk_Image image; /* Image for this segment. NULL
- * means that the image hasn't
- * been created yet. */
- int align; /* How to align image in vertical
- * space. See definitions in
- * tkTextImage.c. */
- int padX, padY; /* Padding to leave around each side
- * of image, in pixels. */
- int chunkCount; /* Number of display chunks that
- * refer to this image. */
+ struct TkSharedText *sharedTextPtr;
+ /* Information about the shared portion of the
+ * text widget. This is used when the image
+ * changes or is deleted. */
+ TkTextLine *linePtr; /* Line structure that contains this image. */
+ char *imageString; /* Name of the image for this segment. */
+ char *imageName; /* Name used by text widget to identify this
+ * image. May be unique-ified. */
+ char *name; /* Name used in the hash table. Used by
+ * "image names" to identify this instance of
+ * the image. */
+ Tk_Image image; /* Image for this segment. NULL means that the
+ * image hasn't been created yet. */
+ int align; /* How to align image in vertical space. See
+ * definitions in tkTextImage.c. */
+ int padX, padY; /* Padding to leave around each side of image,
+ * in pixels. */
+ int chunkCount; /* Number of display chunks that refer to this
+ * image. */
+ Tk_OptionTable optionTable; /* Token representing the configuration
+ * specifications. */
} TkTextEmbImage;
/*
@@ -151,40 +170,43 @@ typedef struct TkTextEmbImage {
*/
typedef struct TkTextSegment {
- struct Tk_SegType *typePtr; /* Pointer to record describing
- * segment's type. */
- struct TkTextSegment *nextPtr; /* Next in list of segments for this
- * line, or NULL for end of list. */
- int size; /* Size of this segment (# of bytes
- * of index space it occupies). */
+ const struct Tk_SegType *typePtr;
+ /* Pointer to record describing segment's
+ * type. */
+ struct TkTextSegment *nextPtr;
+ /* Next in list of segments for this line, or
+ * NULL for end of list. */
+ int size; /* Size of this segment (# of bytes of index
+ * space it occupies). */
union {
- char chars[4]; /* Characters that make up character
- * info. Actual length varies to
- * hold as many characters as needed.*/
- TkTextToggle toggle; /* Information about tag toggle. */
- TkTextMark mark; /* Information about mark. */
- TkTextEmbWindow ew; /* Information about embedded
- * window. */
- TkTextEmbImage ei; /* Information about embedded
- * image. */
+ char chars[4]; /* Characters that make up character info.
+ * Actual length varies to hold as many
+ * characters as needed.*/
+ TkTextToggle toggle; /* Information about tag toggle. */
+ TkTextMark mark; /* Information about mark. */
+ TkTextEmbWindow ew; /* Information about embedded window. */
+ TkTextEmbImage ei; /* Information about embedded image. */
} body;
} TkTextSegment;
/*
- * Data structures of the type defined below are used during the
- * execution of Tcl commands to keep track of various interesting
- * places in a text. An index is only valid up until the next
- * modification to the character structure of the b-tree so they
- * can't be retained across Tcl commands. However, mods to marks
- * or tags don't invalidate indices.
+ * Data structures of the type defined below are used during the execution of
+ * Tcl commands to keep track of various interesting places in a text. An
+ * index is only valid up until the next modification to the character
+ * structure of the b-tree so they can't be retained across Tcl commands.
+ * However, mods to marks or tags don't invalidate indices.
*/
typedef struct TkTextIndex {
- TkTextBTree tree; /* Tree containing desired position. */
- TkTextLine *linePtr; /* Pointer to line containing position
- * of interest. */
- int byteIndex; /* Index within line of desired
- * character (0 means first one). */
+ TkTextBTree tree; /* Tree containing desired position. */
+ TkTextLine *linePtr; /* Pointer to line containing position of
+ * interest. */
+ int byteIndex; /* Index within line of desired character (0
+ * means first one). */
+ struct TkText *textPtr; /* May be NULL, but otherwise the text widget
+ * with which this index is associated. If not
+ * NULL, then we have a refCount on the
+ * widget. */
} TkTextIndex;
/*
@@ -193,204 +215,209 @@ typedef struct TkTextIndex {
typedef struct TkTextDispChunk TkTextDispChunk;
-typedef void Tk_ChunkDisplayProc _ANSI_ARGS_((
+typedef void Tk_ChunkDisplayProc(struct TkText *textPtr,
TkTextDispChunk *chunkPtr, int x, int y,
int height, int baseline, Display *display,
- Drawable dst, int screenY));
-typedef void Tk_ChunkUndisplayProc _ANSI_ARGS_((
- struct TkText *textPtr,
- TkTextDispChunk *chunkPtr));
-typedef int Tk_ChunkMeasureProc _ANSI_ARGS_((
- TkTextDispChunk *chunkPtr, int x));
-typedef void Tk_ChunkBboxProc _ANSI_ARGS_((
+ Drawable dst, int screenY);
+typedef void Tk_ChunkUndisplayProc(struct TkText *textPtr,
+ TkTextDispChunk *chunkPtr);
+typedef int Tk_ChunkMeasureProc(TkTextDispChunk *chunkPtr, int x);
+typedef void Tk_ChunkBboxProc(struct TkText *textPtr,
TkTextDispChunk *chunkPtr, int index, int y,
int lineHeight, int baseline, int *xPtr,
- int *yPtr, int *widthPtr, int *heightPtr));
+ int *yPtr, int *widthPtr, int *heightPtr);
/*
- * The structure below represents a chunk of stuff that is displayed
- * together on the screen. This structure is allocated and freed by
- * generic display code but most of its fields are filled in by
- * segment-type-specific code.
+ * The structure below represents a chunk of stuff that is displayed together
+ * on the screen. This structure is allocated and freed by generic display
+ * code but most of its fields are filled in by segment-type-specific code.
*/
struct TkTextDispChunk {
/*
- * The fields below are set by the type-independent code before
- * calling the segment-type-specific layoutProc. They should not
- * be modified by segment-type-specific code.
+ * The fields below are set by the type-independent code before calling
+ * the segment-type-specific layoutProc. They should not be modified by
+ * segment-type-specific code.
*/
- int x; /* X position of chunk, in pixels.
- * This position is measured from the
- * left edge of the logical line,
- * not from the left edge of the
- * window (i.e. it doesn't change
- * under horizontal scrolling). */
- struct TkTextDispChunk *nextPtr; /* Next chunk in the display line
- * or NULL for the end of the list. */
- struct TextStyle *stylePtr; /* Display information, known only
- * to tkTextDisp.c. */
+ int x; /* X position of chunk, in pixels. This
+ * position is measured from the left edge of
+ * the logical line, not from the left edge of
+ * the window (i.e. it doesn't change under
+ * horizontal scrolling). */
+ struct TkTextDispChunk *nextPtr;
+ /* Next chunk in the display line or NULL for
+ * the end of the list. */
+ struct TextStyle *stylePtr; /* Display information, known only to
+ * tkTextDisp.c. */
/*
- * The fields below are set by the layoutProc that creates the
- * chunk.
+ * The fields below are set by the layoutProc that creates the chunk.
*/
- Tk_ChunkDisplayProc *displayProc; /* Procedure to invoke to draw this
- * chunk on the display or an
- * off-screen pixmap. */
+ Tk_ChunkDisplayProc *displayProc;
+ /* Procedure to invoke to draw this chunk on
+ * the display or an off-screen pixmap. */
Tk_ChunkUndisplayProc *undisplayProc;
- /* Procedure to invoke when segment
- * ceases to be displayed on screen
- * anymore. */
- Tk_ChunkMeasureProc *measureProc; /* Procedure to find character under
- * a given x-location. */
- Tk_ChunkBboxProc *bboxProc; /* Procedure to find bounding box
- * of character in chunk. */
- int numBytes; /* Number of bytes that will be
- * displayed in the chunk. */
- int minAscent; /* Minimum space above the baseline
- * needed by this chunk. */
- int minDescent; /* Minimum space below the baseline
- * needed by this chunk. */
- int minHeight; /* Minimum total line height needed
- * by this chunk. */
- int width; /* Width of this chunk, in pixels.
- * Initially set by chunk-specific
- * code, but may be increased to
- * include tab or extra space at end
- * of line. */
- int breakIndex; /* Index within chunk of last
- * acceptable position for a line
- * (break just before this byte index).
- * <= 0 means don't break during or
- * immediately after this chunk. */
- ClientData clientData; /* Additional information for use
- * of displayProc and undisplayProc. */
+ /* Procedure to invoke when segment ceases to
+ * be displayed on screen anymore. */
+ Tk_ChunkMeasureProc *measureProc;
+ /* Procedure to find character under a given
+ * x-location. */
+ Tk_ChunkBboxProc *bboxProc; /* Procedure to find bounding box of character
+ * in chunk. */
+ int numBytes; /* Number of bytes that will be displayed in
+ * the chunk. */
+ int minAscent; /* Minimum space above the baseline needed by
+ * this chunk. */
+ int minDescent; /* Minimum space below the baseline needed by
+ * this chunk. */
+ int minHeight; /* Minimum total line height needed by this
+ * chunk. */
+ int width; /* Width of this chunk, in pixels. Initially
+ * set by chunk-specific code, but may be
+ * increased to include tab or extra space at
+ * end of line. */
+ int breakIndex; /* Index within chunk of last acceptable
+ * position for a line (break just before this
+ * byte index). <= 0 means don't break during
+ * or immediately after this chunk. */
+ ClientData clientData; /* Additional information for use of
+ * displayProc and undisplayProc. */
};
/*
- * One data structure of the following type is used for each tag in a
- * text widget. These structures are kept in textPtr->tagTable and
- * referred to in other structures.
+ * One data structure of the following type is used for each tag in a text
+ * widget. These structures are kept in sharedTextPtr->tagTable and referred
+ * to in other structures.
*/
-typedef enum { TEXT_WRAPMODE_NULL, TEXT_WRAPMODE_NONE,
- TEXT_WRAPMODE_CHAR, TEXT_WRAPMODE_WORD
+typedef enum {
+ TEXT_WRAPMODE_CHAR, TEXT_WRAPMODE_NONE, TEXT_WRAPMODE_WORD,
+ TEXT_WRAPMODE_NULL
} TkWrapMode;
-EXTERN Tk_CustomOption TkTextWrapModeOption;
-
typedef struct TkTextTag {
- char *name; /* Name of this tag. This field is actually
- * a pointer to the key from the entry in
- * textPtr->tagTable, so it needn't be freed
- * explicitly. */
- int priority; /* Priority of this tag within widget. 0
- * means lowest priority. Exactly one tag
- * has each integer value between 0 and
- * numTags-1. */
- struct Node *tagRootPtr; /* Pointer into the B-Tree at the lowest
- * node that completely dominates the ranges
- * of text occupied by the tag. At this
- * node there is no information about the
- * tag. One or more children of the node
- * do contain information about the tag. */
- int toggleCount; /* Total number of tag toggles */
+ const char *name; /* Name of this tag. This field is actually a
+ * pointer to the key from the entry in
+ * sharedTextPtr->tagTable, so it needn't be
+ * freed explicitly. For 'sel' tags this is
+ * just a static string, so again need not be
+ * freed. */
+ const struct TkText *textPtr;
+ /* If non-NULL, then this tag only applies to
+ * the given text widget (when there are peer
+ * widgets). */
+ int priority; /* Priority of this tag within widget. 0 means
+ * lowest priority. Exactly one tag has each
+ * integer value between 0 and numTags-1. */
+ struct Node *tagRootPtr; /* Pointer into the B-Tree at the lowest node
+ * that completely dominates the ranges of
+ * text occupied by the tag. At this node
+ * there is no information about the tag. One
+ * or more children of the node do contain
+ * information about the tag. */
+ int toggleCount; /* Total number of tag toggles. */
/*
- * Information for displaying text with this tag. The information
- * belows acts as an override on information specified by lower-priority
- * tags. If no value is specified, then the next-lower-priority tag
- * on the text determins the value. The text widget itself provides
- * defaults if no tag specifies an override.
+ * Information for displaying text with this tag. The information belows
+ * acts as an override on information specified by lower-priority tags.
+ * If no value is specified, then the next-lower-priority tag on the text
+ * determins the value. The text widget itself provides defaults if no tag
+ * specifies an override.
*/
- Tk_3DBorder border; /* Used for drawing background. NULL means
- * no value specified here. */
- char *bdString; /* -borderwidth option string (malloc-ed).
- * NULL means option not specified. */
+ Tk_3DBorder border; /* Used for drawing background. NULL means no
+ * value specified here. */
int borderWidth; /* Width of 3-D border for background. */
- char *reliefString; /* -relief option string (malloc-ed).
- * NULL means option not specified. */
+ Tcl_Obj *borderWidthPtr; /* Width of 3-D border for background. */
+ char *reliefString; /* -relief option string (malloc-ed). NULL
+ * means option not specified. */
int relief; /* 3-D relief for background. */
- Pixmap bgStipple; /* Stipple bitmap for background. None
- * means no value specified here. */
- XColor *fgColor; /* Foreground color for text. NULL means
- * no value specified here. */
- Tk_Font tkfont; /* Font for displaying text. NULL means
+ Pixmap bgStipple; /* Stipple bitmap for background. None means
* no value specified here. */
+ XColor *fgColor; /* Foreground color for text. NULL means no
+ * value specified here. */
+ Tk_Font tkfont; /* Font for displaying text. NULL means no
+ * value specified here. */
Pixmap fgStipple; /* Stipple bitmap for text and other
- * foreground stuff. None means no value
+ * foreground stuff. None means no value
* specified here.*/
- char *justifyString; /* -justify option string (malloc-ed).
- * NULL means option not specified. */
+ char *justifyString; /* -justify option string (malloc-ed). NULL
+ * means option not specified. */
Tk_Justify justify; /* How to justify text: TK_JUSTIFY_LEFT,
* TK_JUSTIFY_RIGHT, or TK_JUSTIFY_CENTER.
* Only valid if justifyString is non-NULL. */
- char *lMargin1String; /* -lmargin1 option string (malloc-ed).
- * NULL means option not specified. */
- int lMargin1; /* Left margin for first display line of
- * each text line, in pixels. Only valid
- * if lMargin1String is non-NULL. */
- char *lMargin2String; /* -lmargin2 option string (malloc-ed).
- * NULL means option not specified. */
+ char *lMargin1String; /* -lmargin1 option string (malloc-ed). NULL
+ * means option not specified. */
+ int lMargin1; /* Left margin for first display line of each
+ * text line, in pixels. Only valid if
+ * lMargin1String is non-NULL. */
+ char *lMargin2String; /* -lmargin2 option string (malloc-ed). NULL
+ * means option not specified. */
int lMargin2; /* Left margin for second and later display
- * lines of each text line, in pixels. Only
+ * lines of each text line, in pixels. Only
* valid if lMargin2String is non-NULL. */
- char *offsetString; /* -offset option string (malloc-ed).
- * NULL means option not specified. */
+ char *offsetString; /* -offset option string (malloc-ed). NULL
+ * means option not specified. */
int offset; /* Vertical offset of text's baseline from
- * baseline of line. Used for superscripts
- * and subscripts. Only valid if
- * offsetString is non-NULL. */
- char *overstrikeString; /* -overstrike option string (malloc-ed).
- * NULL means option not specified. */
+ * baseline of line. Used for superscripts and
+ * subscripts. Only valid if offsetString is
+ * non-NULL. */
+ char *overstrikeString; /* -overstrike option string (malloc-ed). NULL
+ * means option not specified. */
int overstrike; /* Non-zero means draw horizontal line through
- * middle of text. Only valid if
+ * middle of text. Only valid if
* overstrikeString is non-NULL. */
- char *rMarginString; /* -rmargin option string (malloc-ed).
- * NULL means option not specified. */
- int rMargin; /* Right margin for text, in pixels. Only
+ char *rMarginString; /* -rmargin option string (malloc-ed). NULL
+ * means option not specified. */
+ int rMargin; /* Right margin for text, in pixels. Only
* valid if rMarginString is non-NULL. */
- char *spacing1String; /* -spacing1 option string (malloc-ed).
- * NULL means option not specified. */
- int spacing1; /* Extra spacing above first display
- * line for text line. Only valid if
- * spacing1String is non-NULL. */
- char *spacing2String; /* -spacing2 option string (malloc-ed).
- * NULL means option not specified. */
- int spacing2; /* Extra spacing between display
- * lines for the same text line. Only valid
- * if spacing2String is non-NULL. */
- char *spacing3String; /* -spacing2 option string (malloc-ed).
- * NULL means option not specified. */
- int spacing3; /* Extra spacing below last display
- * line for text line. Only valid if
- * spacing3String is non-NULL. */
- char *tabString; /* -tabs option string (malloc-ed).
- * NULL means option not specified. */
+ char *spacing1String; /* -spacing1 option string (malloc-ed). NULL
+ * means option not specified. */
+ int spacing1; /* Extra spacing above first display line for
+ * text line. Only valid if spacing1String is
+ * non-NULL. */
+ char *spacing2String; /* -spacing2 option string (malloc-ed). NULL
+ * means option not specified. */
+ int spacing2; /* Extra spacing between display lines for the
+ * same text line. Only valid if
+ * spacing2String is non-NULL. */
+ char *spacing3String; /* -spacing2 option string (malloc-ed). NULL
+ * means option not specified. */
+ int spacing3; /* Extra spacing below last display line for
+ * text line. Only valid if spacing3String is
+ * non-NULL. */
+ Tcl_Obj *tabStringPtr; /* -tabs option string. NULL means option not
+ * specified. */
struct TkTextTabArray *tabArrayPtr;
- /* Info about tabs for tag (malloc-ed)
- * or NULL. Corresponds to tabString. */
- char *underlineString; /* -underline option string (malloc-ed).
- * NULL means option not specified. */
+ /* Info about tabs for tag (malloc-ed) or
+ * NULL. Corresponds to tabString. */
+ int tabStyle; /* One of TABULAR or WORDPROCESSOR or NONE (if
+ * not specified). */
+ char *underlineString; /* -underline option string (malloc-ed). NULL
+ * means option not specified. */
int underline; /* Non-zero means draw underline underneath
- * text. Only valid if underlineString is
+ * text. Only valid if underlineString is
* non-NULL. */
TkWrapMode wrapMode; /* How to handle wrap-around for this tag.
* Must be TEXT_WRAPMODE_CHAR,
- * TEXT_WRAPMODE_NONE, TEXT_WRAPMODE_WORD,
- * or TEXT_WRAPMODE_NULL to use wrapmode for
+ * TEXT_WRAPMODE_NONE, TEXT_WRAPMODE_WORD, or
+ * TEXT_WRAPMODE_NULL to use wrapmode for
* whole widget. */
- char *elideString; /* -elide option string (malloc-ed).
- * NULL means option not specified. */
+ char *elideString; /* -elide option string (malloc-ed). NULL
+ * means option not specified. */
int elide; /* Non-zero means that data under this tag
* should not be displayed. */
int affectsDisplay; /* Non-zero means that this tag affects the
* way information is displayed on the screen
* (so need to redisplay if tag changes). */
+ Tk_OptionTable optionTable; /* Token representing the configuration
+ * specifications. */
+ int affectsDisplayGeometry; /* Non-zero means that this tag affects the
+ * size with which information is displayed on
+ * the screen (so need to recalculate line
+ * dimensions if tag changes). */
} TkTextTag;
#define TK_TAG_AFFECTS_DISPLAY 0x1
@@ -399,66 +426,81 @@ typedef struct TkTextTag {
#define TK_TAG_OFFSET 0x10
/*
- * The data structure below is used for searching a B-tree for transitions
- * on a single tag (or for all tag transitions). No code outside of
- * tkTextBTree.c should ever modify any of the fields in these structures,
- * but it's OK to use them for read-only information.
+ * The data structure below is used for searching a B-tree for transitions on
+ * a single tag (or for all tag transitions). No code outside of tkTextBTree.c
+ * should ever modify any of the fields in these structures, but it's OK to
+ * use them for read-only information.
*/
typedef struct TkTextSearch {
- TkTextIndex curIndex; /* Position of last tag transition
- * returned by TkBTreeNextTag, or
- * index of start of segment
- * containing starting position for
- * search if TkBTreeNextTag hasn't
- * been called yet, or same as
- * stopIndex if search is over. */
- TkTextSegment *segPtr; /* Actual tag segment returned by last
- * call to TkBTreeNextTag, or NULL if
- * TkBTreeNextTag hasn't returned
- * anything yet. */
- TkTextSegment *nextPtr; /* Where to resume search in next
- * call to TkBTreeNextTag. */
- TkTextSegment *lastPtr; /* Stop search before just before
- * considering this segment. */
- TkTextTag *tagPtr; /* Tag to search for (or tag found, if
- * allTags is non-zero). */
- int linesLeft; /* Lines left to search (including
- * curIndex and stopIndex). When
- * this becomes <= 0 the search is
- * over. */
- int allTags; /* Non-zero means ignore tag check:
- * search for transitions on all
- * tags. */
+ TkTextIndex curIndex; /* Position of last tag transition returned by
+ * TkBTreeNextTag, or index of start of
+ * segment containing starting position for
+ * search if TkBTreeNextTag hasn't been called
+ * yet, or same as stopIndex if search is
+ * over. */
+ TkTextSegment *segPtr; /* Actual tag segment returned by last call to
+ * TkBTreeNextTag, or NULL if TkBTreeNextTag
+ * hasn't returned anything yet. */
+ TkTextSegment *nextPtr; /* Where to resume search in next call to
+ * TkBTreeNextTag. */
+ TkTextSegment *lastPtr; /* Stop search before just before considering
+ * this segment. */
+ TkTextTag *tagPtr; /* Tag to search for (or tag found, if allTags
+ * is non-zero). */
+ int linesLeft; /* Lines left to search (including curIndex
+ * and stopIndex). When this becomes <= 0 the
+ * search is over. */
+ int allTags; /* Non-zero means ignore tag check: search for
+ * transitions on all tags. */
} TkTextSearch;
/*
- * The following data structure describes a single tab stop.
+ * The following data structure describes a single tab stop. It must be kept
+ * in sync with the 'tabOptionStrings' array in the function 'TkTextGetTabs'
*/
typedef enum {LEFT, RIGHT, CENTER, NUMERIC} TkTextTabAlign;
+/*
+ * The following are the supported styles of tabbing, used for the -tabstyle
+ * option of the text widget. The last element is only used for tag options.
+ */
+
+typedef enum {
+ TK_TEXT_TABSTYLE_TABULAR,
+ TK_TEXT_TABSTYLE_WORDPROCESSOR,
+ TK_TEXT_TABSTYLE_NONE
+} TkTextTabStyle;
+
typedef struct TkTextTab {
- int location; /* Offset in pixels of this tab stop
- * from the left margin (lmargin2) of
- * the text. */
- TkTextTabAlign alignment; /* Where the tab stop appears relative
- * to the text. */
+ int location; /* Offset in pixels of this tab stop from the
+ * left margin (lmargin2) of the text. */
+ TkTextTabAlign alignment; /* Where the tab stop appears relative to the
+ * text. */
} TkTextTab;
typedef struct TkTextTabArray {
- int numTabs; /* Number of tab stops. */
- TkTextTab tabs[1]; /* Array of tabs. The actual size
- * will be numTabs. THIS FIELD MUST
- * BE THE LAST IN THE STRUCTURE. */
+ int numTabs; /* Number of tab stops. */
+ double lastTab; /* The accurate fractional pixel position of
+ * the last tab. */
+ double tabIncrement; /* The accurate fractional pixel increment
+ * between interpolated tabs we have to create
+ * when we exceed numTabs. */
+ TkTextTab tabs[1]; /* Array of tabs. The actual size will be
+ * numTabs. THIS FIELD MUST BE THE LAST IN THE
+ * STRUCTURE. */
} TkTextTabArray;
-/* enum definining the edit modes of */
+/*
+ * Enumeration definining the edit modes of the widget.
+ */
typedef enum {
- TK_TEXT_EDIT_INSERT, /* insert mode */
- TK_TEXT_EDIT_DELETE, /* delete mode */
- TK_TEXT_EDIT_OTHER /* none of the above */
+ TK_TEXT_EDIT_INSERT, /* insert mode */
+ TK_TEXT_EDIT_DELETE, /* delete mode */
+ TK_TEXT_EDIT_REPLACE, /* replace mode */
+ TK_TEXT_EDIT_OTHER /* none of the above */
} TkTextEditMode;
/*
@@ -475,46 +517,127 @@ typedef enum {
} TkTextDirtyMode;
/*
- * A data structure of the following type is kept for each text widget that
- * currently exists for this process:
+ * The following enum is used to define a type for the -state option of the
+ * Text widget.
*/
-typedef struct TkText {
- Tk_Window tkwin; /* Window that embodies the text. NULL
- * means that the window has been destroyed
- * but the data structures haven't yet been
- * cleaned up.*/
- Display *display; /* Display for widget. Needed, among other
- * things, to allow resources to be freed
- * even after tkwin has gone away. */
- Tcl_Interp *interp; /* Interpreter associated with widget. Used
- * to delete widget command. */
- Tcl_Command widgetCmd; /* Token for text's widget command. */
+typedef enum {
+ TK_TEXT_STATE_DISABLED, TK_TEXT_STATE_NORMAL
+} TkTextState;
+
+/*
+ * A data structure of the following type is shared between each text widget
+ * that are peers.
+ */
+
+typedef struct TkSharedText {
+ int refCount; /* Reference count this shared object. */
TkTextBTree tree; /* B-tree representation of text and tags for
* widget. */
Tcl_HashTable tagTable; /* Hash table that maps from tag names to
- * pointers to TkTextTag structures. */
+ * pointers to TkTextTag structures. The "sel"
+ * tag does not feature in this table, since
+ * there's one of those for each text peer. */
int numTags; /* Number of tags currently defined for
- * widget; needed to keep track of
+ * widget; needed to keep track of
* priorities. */
Tcl_HashTable markTable; /* Hash table that maps from mark names to
- * pointers to mark segments. */
- Tcl_HashTable windowTable; /* Hash table that maps from window names
- * to pointers to window segments. If a
- * window segment doesn't yet have an
- * associated window, there is no entry for
- * it here. */
- Tcl_HashTable imageTable; /* Hash table that maps from image names
- * to pointers to image segments. If an
- * image segment doesn't yet have an
- * associated image, there is no entry for
- * it here. */
+ * pointers to mark segments. The special
+ * "insert" and "current" marks are not stored
+ * in this table, but directly accessed as
+ * fields of textPtr. */
+ Tcl_HashTable windowTable; /* Hash table that maps from window names to
+ * pointers to window segments. If a window
+ * segment doesn't yet have an associated
+ * window, there is no entry for it here. */
+ Tcl_HashTable imageTable; /* Hash table that maps from image names to
+ * pointers to image segments. If an image
+ * segment doesn't yet have an associated
+ * image, there is no entry for it here. */
+ Tk_BindingTable bindingTable;
+ /* Table of all bindings currently defined for
+ * this widget. NULL means that no bindings
+ * exist, so the table hasn't been created.
+ * Each "object" used for this table is the
+ * name of a tag. */
+ int stateEpoch; /* This is incremented each time the B-tree's
+ * contents change structurally, or when the
+ * start/end limits change, and means that any
+ * cached TkTextIndex objects are no longer
+ * valid. */
+
+ /*
+ * Information related to the undo/redo functionality.
+ */
+
+ TkUndoRedoStack *undoStack; /* The undo/redo stack. */
+ int undo; /* Non-zero means the undo/redo behaviour is
+ * enabled. */
+ int maxUndo; /* The maximum depth of the undo stack
+ * expressed as the maximum number of compound
+ * statements. */
+ int autoSeparators; /* Non-zero means the separators will be
+ * inserted automatically. */
+ int isDirty; /* Flag indicating the 'dirtyness' of the
+ * text widget. If the flag is not zero,
+ * unsaved modifications have been applied to
+ * the text widget. */
+ TkTextDirtyMode dirtyMode; /* The nature of the dirtyness characterized
+ * by the isDirty flag. */
+ TkTextEditMode lastEditMode;/* Keeps track of what the last edit mode
+ * was. */
+
+ /*
+ * Keep track of all the peers
+ */
+
+ struct TkText *peers;
+} TkSharedText;
+
+/*
+ * A data structure of the following type is kept for each text widget that
+ * currently exists for this process:
+ */
+
+typedef struct TkText {
+ /*
+ * Information related to and accessed by widget peers and the
+ * TkSharedText handling routines.
+ */
+
+ TkSharedText *sharedTextPtr;/* Shared section of all peers. */
+ struct TkText *next; /* Next in list of linked peers. */
+ TkTextLine *start; /* First B-tree line to show, or NULL to start
+ * at the beginning. */
+ TkTextLine *end; /* Last B-tree line to show, or NULL for up to
+ * the end. */
+ int pixelReference; /* Counter into the current tree reference
+ * index corresponding to this widget. */
+ int abortSelections; /* Set to 1 whenever the text is modified in a
+ * way that interferes with selection
+ * retrieval: used to abort incremental
+ * selection retrievals. */
+
+ /*
+ * Standard Tk widget information and text-widget specific items
+ */
+
+ Tk_Window tkwin; /* Window that embodies the text. NULL means
+ * that the window has been destroyed but the
+ * data structures haven't yet been cleaned
+ * up.*/
+ Display *display; /* Display for widget. Needed, among other
+ * things, to allow resources to be freed even
+ * after tkwin has gone away. */
+ Tcl_Interp *interp; /* Interpreter associated with widget. Used to
+ * delete widget command. */
+ Tcl_Command widgetCmd; /* Token for text's widget command. */
int state; /* Either STATE_NORMAL or STATE_DISABLED. A
* text widget is read-only when disabled. */
/*
- * Default information for displaying (may be overridden by tags
- * applied to ranges of characters).
+ * Default information for displaying (may be overridden by tags applied
+ * to ranges of characters).
*/
Tk_3DBorder border; /* Structure used to draw 3-D border and
@@ -522,44 +645,47 @@ typedef struct TkText {
int borderWidth; /* Width of 3-D border to draw around entire
* widget. */
int padX, padY; /* Padding between text and window border. */
- int relief; /* 3-d effect for border around entire
- * widget: TK_RELIEF_RAISED etc. */
- int highlightWidth; /* Width in pixels of highlight to draw
- * around widget when it has the focus.
- * <= 0 means don't draw a highlight. */
+ int relief; /* 3-d effect for border around entire widget:
+ * TK_RELIEF_RAISED etc. */
+ int highlightWidth; /* Width in pixels of highlight to draw around
+ * widget when it has the focus. <= 0 means
+ * don't draw a highlight. */
XColor *highlightBgColorPtr;
- /* Color for drawing traversal highlight
- * area when highlight is off. */
+ /* Color for drawing traversal highlight area
+ * when highlight is off. */
XColor *highlightColorPtr; /* Color for drawing traversal highlight. */
Tk_Cursor cursor; /* Current cursor for window, or None. */
XColor *fgColor; /* Default foreground color for text. */
Tk_Font tkfont; /* Default font for displaying text. */
int charWidth; /* Width of average character in default
* font. */
+ int charHeight; /* Height of average character in default
+ * font, including line spacing. */
int spacing1; /* Default extra spacing above first display
* line for each text line. */
int spacing2; /* Default extra spacing between display lines
* for the same text line. */
int spacing3; /* Default extra spacing below last display
* line for each text line. */
- char *tabOptionString; /* Value of -tabs option string (malloc'ed). */
+ Tcl_Obj *tabOptionPtr; /* Value of -tabs option string. */
TkTextTabArray *tabArrayPtr;
/* Information about tab stops (malloc'ed).
* NULL means perform default tabbing
* behavior. */
+ int tabStyle; /* One of TABULAR or WORDPROCESSOR. */
/*
* Additional information used for displaying:
*/
- TkWrapMode wrapMode; /* How to handle wrap-around. Must be
+ TkWrapMode wrapMode; /* How to handle wrap-around. Must be
* TEXT_WRAPMODE_CHAR, TEXT_WRAPMODE_NONE, or
* TEXT_WRAPMODE_WORD. */
- int width, height; /* Desired dimensions for window, measured
- * in characters. */
- int setGrid; /* Non-zero means pass gridding information
- * to window manager. */
- int prevWidth, prevHeight; /* Last known dimensions of window; used to
+ int width, height; /* Desired dimensions for window, measured in
+ * characters. */
+ int setGrid; /* Non-zero means pass gridding information to
+ * window manager. */
+ int prevWidth, prevHeight; /* Last known dimensions of window; used to
* detect changes in size. */
TkTextIndex topIndex; /* Identifies first character in top display
* line of window. */
@@ -569,31 +695,27 @@ typedef struct TkText {
* Information related to selection.
*/
- TkTextTag *selTagPtr; /* Pointer to "sel" tag. Used to tell when
- * a new selection has been made. */
+ TkTextTag *selTagPtr; /* Pointer to "sel" tag. Used to tell when a
+ * new selection has been made. */
Tk_3DBorder selBorder; /* Border and background for selected
- * characters. This is a copy of information
- * in *cursorTagPtr, so it shouldn't be
- * explicitly freed. */
- char *selBdString; /* Value of -selectborderwidth option, or NULL
- * if not specified (malloc'ed). */
- XColor *selFgColorPtr; /* Foreground color for selected text.
- * This is a copy of information in
- * *cursorTagPtr, so it shouldn't be
+ * characters. This is a copy of information
+ * in *selTagPtr, so it shouldn't be
* explicitly freed. */
+ Tk_3DBorder inactiveSelBorder;
+ /* Border and background for selected
+ * characters when they don't have the
+ * focus. */
+ int selBorderWidth; /* Width of border around selection. */
+ Tcl_Obj *selBorderWidthPtr; /* Width of border around selection. */
+ XColor *selFgColorPtr; /* Foreground color for selected text. This is
+ * a copy of information in *selTagPtr, so it
+ * shouldn't be explicitly freed. */
int exportSelection; /* Non-zero means tie "sel" tag to X
* selection. */
- TkTextIndex selIndex; /* Used during multi-pass selection retrievals.
- * This index identifies the next character
- * to be returned from the selection. */
- int abortSelections; /* Set to 1 whenever the text is modified
- * in a way that interferes with selection
- * retrieval: used to abort incremental
- * selection retrievals. */
- int selOffset; /* Offset in selection corresponding to
- * selLine and selCh. -1 means neither
- * this information nor selIndex is of any
- * use. */
+ TkTextIndex selIndex; /* Used during multi-pass selection
+ * retrievals. This index identifies the next
+ * character to be returned from the
+ * selection. */
/*
* Information related to insertion cursor:
@@ -617,58 +739,49 @@ typedef struct TkText {
* Information used for event bindings associated with tags:
*/
- Tk_BindingTable bindingTable;
- /* Table of all bindings currently defined
- * for this widget. NULL means that no
- * bindings exist, so the table hasn't been
- * created. Each "object" used for this
- * table is the address of a tag. */
TkTextSegment *currentMarkPtr;
- /* Pointer to segment for "current" mark,
- * or NULL if none. */
+ /* Pointer to segment for "current" mark, or
+ * NULL if none. */
XEvent pickEvent; /* The event from which the current character
- * was chosen. Must be saved so that we
- * can repick after modifications to the
- * text. */
- int numCurTags; /* Number of tags associated with character
- * at current mark. */
- TkTextTag **curTagArrayPtr; /* Pointer to array of tags for current
- * mark, or NULL if none. */
+ * was chosen. Must be saved so that we can
+ * repick after modifications to the text. */
+ int numCurTags; /* Number of tags associated with character at
+ * current mark. */
+ TkTextTag **curTagArrayPtr; /* Pointer to array of tags for current mark,
+ * or NULL if none. */
/*
* Miscellaneous additional information:
*/
- char *takeFocus; /* Value of -takeFocus option; not used in
- * the C code, but used by keyboard traversal
- * scripts. Malloc'ed, but may be NULL. */
+ char *takeFocus; /* Value of -takeFocus option; not used in the
+ * C code, but used by keyboard traversal
+ * scripts. Malloc'ed, but may be NULL. */
char *xScrollCmd; /* Prefix of command to issue to update
* horizontal scrollbar when view changes. */
char *yScrollCmd; /* Prefix of command to issue to update
* vertical scrollbar when view changes. */
- int flags; /* Miscellaneous flags; see below for
+ int flags; /* Miscellaneous flags; see below for
* definitions. */
+ Tk_OptionTable optionTable; /* Token representing the configuration
+ * specifications. */
+ int refCount; /* Number of cached TkTextIndex objects
+ * refering to us. */
+ int insertCursorType; /* 0 = standard insertion cursor, 1 = block
+ * cursor. */
/*
- * Information related to the undo/redo funcitonality
+ * Copies of information from the shared section relating to the undo/redo
+ * functonality
*/
-
- TkUndoRedoStack *undoStack; /* The undo/redo stack. */
- int undo; /* non zero means the undo/redo behaviour is
+
+ int undo; /* Non-zero means the undo/redo behaviour is
* enabled. */
int maxUndo; /* The maximum depth of the undo stack
* expressed as the maximum number of compound
* statements. */
- int autoSeparators; /* non zero means the separatorss will be
+ int autoSeparators; /* Non-zero means the separators will be
* inserted automatically. */
- int isDirty; /* Flag indicating the 'dirtynesss' of the
- * text widget. If the flag is not zero,
- * unsaved modifications have been applied to
- * the text widget. */
- TkTextDirtyMode dirtyMode; /* The nature of the dirtyness characterized
- * by the isDirty flag. */
- TkTextEditMode lastEditMode;/* Keeps track of what the last edit mode
- * was. */
} TkText;
/*
@@ -680,11 +793,15 @@ typedef struct TkText {
* displayed on screen.
* GOT_FOCUS: Non-zero means this window has the input
* focus.
- * BUTTON_DOWN: 1 means that a mouse button is currently
- * down; this is used to implement grabs
- * for the duration of button presses.
+ * BUTTON_DOWN: 1 means that a mouse button is currently down;
+ * this is used to implement grabs for the
+ * duration of button presses.
* UPDATE_SCROLLBARS: Non-zero means scrollbar(s) should be updated
* during next redisplay operation.
+ * NEED_REPICK This appears unused and should probably be
+ * ignored.
+ * OPTIONS_FREED The widget's options have been freed.
+ * DESTROYED The widget is going away.
*/
#define GOT_SELECTION 1
@@ -693,230 +810,367 @@ typedef struct TkText {
#define BUTTON_DOWN 8
#define UPDATE_SCROLLBARS 0x10
#define NEED_REPICK 0x20
+#define OPTIONS_FREED 0x40
+#define DESTROYED 0x80
/*
- * Records of the following type define segment types in terms of
- * a collection of procedures that may be called to manipulate
- * segments of that type.
- */
-
-typedef TkTextSegment * Tk_SegSplitProc _ANSI_ARGS_((
- struct TkTextSegment *segPtr, int index));
-typedef int Tk_SegDeleteProc _ANSI_ARGS_((
- struct TkTextSegment *segPtr,
- TkTextLine *linePtr, int treeGone));
-typedef TkTextSegment * Tk_SegCleanupProc _ANSI_ARGS_((
- struct TkTextSegment *segPtr, TkTextLine *linePtr));
-typedef void Tk_SegLineChangeProc _ANSI_ARGS_((
- struct TkTextSegment *segPtr, TkTextLine *linePtr));
-typedef int Tk_SegLayoutProc _ANSI_ARGS_((struct TkText *textPtr,
- struct TkTextIndex *indexPtr, TkTextSegment *segPtr,
- int offset, int maxX, int maxChars,
- int noCharsYet, TkWrapMode wrapMode,
- struct TkTextDispChunk *chunkPtr));
-typedef void Tk_SegCheckProc _ANSI_ARGS_((TkTextSegment *segPtr,
- TkTextLine *linePtr));
+ * Records of the following type define segment types in terms of a collection
+ * of procedures that may be called to manipulate segments of that type.
+ */
+
+typedef TkTextSegment * Tk_SegSplitProc(struct TkTextSegment *segPtr,
+ int index);
+typedef int Tk_SegDeleteProc(struct TkTextSegment *segPtr,
+ TkTextLine *linePtr, int treeGone);
+typedef TkTextSegment * Tk_SegCleanupProc(struct TkTextSegment *segPtr,
+ TkTextLine *linePtr);
+typedef void Tk_SegLineChangeProc(struct TkTextSegment *segPtr,
+ TkTextLine *linePtr);
+typedef int Tk_SegLayoutProc(struct TkText *textPtr,
+ struct TkTextIndex *indexPtr,
+ TkTextSegment *segPtr, int offset, int maxX,
+ int maxChars, int noCharsYet, TkWrapMode wrapMode,
+ struct TkTextDispChunk *chunkPtr);
+typedef void Tk_SegCheckProc(TkTextSegment *segPtr,
+ TkTextLine *linePtr);
typedef struct Tk_SegType {
- char *name; /* Name of this kind of segment. */
- int leftGravity; /* If a segment has zero size (e.g. a
- * mark or tag toggle), does it
- * attach to character to its left
- * or right? 1 means left, 0 means
- * right. */
- Tk_SegSplitProc *splitProc; /* Procedure to split large segment
- * into two smaller ones. */
- Tk_SegDeleteProc *deleteProc; /* Procedure to call to delete
- * segment. */
- Tk_SegCleanupProc *cleanupProc; /* After any change to a line, this
- * procedure is invoked for all
- * segments left in the line to
- * perform any cleanup they wish
- * (e.g. joining neighboring
- * segments). */
+ const char *name; /* Name of this kind of segment. */
+ int leftGravity; /* If a segment has zero size (e.g. a mark or
+ * tag toggle), does it attach to character to
+ * its left or right? 1 means left, 0 means
+ * right. */
+ Tk_SegSplitProc *splitProc; /* Procedure to split large segment into two
+ * smaller ones. */
+ Tk_SegDeleteProc *deleteProc;
+ /* Procedure to call to delete segment. */
+ Tk_SegCleanupProc *cleanupProc;
+ /* After any change to a line, this procedure
+ * is invoked for all segments left in the
+ * line to perform any cleanup they wish
+ * (e.g. joining neighboring segments). */
Tk_SegLineChangeProc *lineChangeProc;
- /* Invoked when a segment is about
- * to be moved from its current line
- * to an earlier line because of
- * a deletion. The linePtr is that
- * for the segment's old line.
- * CleanupProc will be invoked after
- * the deletion is finished. */
- Tk_SegLayoutProc *layoutProc; /* Returns size information when
- * figuring out what to display in
- * window. */
- Tk_SegCheckProc *checkProc; /* Called during consistency checks
- * to check internal consistency of
- * segment. */
+ /* Invoked when a segment is about to be moved
+ * from its current line to an earlier line
+ * because of a deletion. The linePtr is that
+ * for the segment's old line. CleanupProc
+ * will be invoked after the deletion is
+ * finished. */
+ Tk_SegLayoutProc *layoutProc;
+ /* Returns size information when figuring out
+ * what to display in window. */
+ Tk_SegCheckProc *checkProc; /* Called during consistency checks to check
+ * internal consistency of segment. */
} Tk_SegType;
/*
- * The constant below is used to specify a line when what is really
- * wanted is the entire text. For now, just use a very big number.
+ * The following type and items describe different flags for text widget items
+ * to count. They are used in both tkText.c and tkTextIndex.c, in
+ * 'CountIndices', 'TkTextIndexBackChars', 'TkTextIndexForwChars', and
+ * 'TkTextIndexCount'.
+ */
+
+typedef int TkTextCountType;
+
+#define COUNT_CHARS 0
+#define COUNT_INDICES 1
+#define COUNT_DISPLAY 2
+#define COUNT_DISPLAY_CHARS (COUNT_CHARS | COUNT_DISPLAY)
+#define COUNT_DISPLAY_INDICES (COUNT_INDICES | COUNT_DISPLAY)
+
+/*
+ * The following structure is used to keep track of elided text taking account
+ * of different tag priorities, it is need for quick calculations of whether a
+ * single index is elided, and to start at a given index and maintain a
+ * correct elide state as we move or count forwards or backwards.
+ */
+
+#define LOTSA_TAGS 1000
+typedef struct TkTextElideInfo {
+ int numTags; /* Total tags in widget. */
+ int elide; /* Is the state currently elided. */
+ int elidePriority; /* Tag priority controlling elide state. */
+ TkTextSegment *segPtr; /* Segment to look at next. */
+ int segOffset; /* Offset of segment within line. */
+ int deftagCnts[LOTSA_TAGS];
+ TkTextTag *deftagPtrs[LOTSA_TAGS];
+ int *tagCnts; /* 0 or 1 depending if the tag with that
+ * priority is on or off. */
+ TkTextTag **tagPtrs; /* Only filled with a tagPtr if the
+ * corresponding tagCnt is 1. */
+} TkTextElideInfo;
+
+/*
+ * The constant below is used to specify a line when what is really wanted is
+ * the entire text. For now, just use a very big number.
*/
-#define TK_END_OF_TEXT 1000000
+#define TK_END_OF_TEXT 1000000
/*
- * The following definition specifies the maximum number of characters
- * needed in a string to hold a position specifier.
+ * The following definition specifies the maximum number of characters needed
+ * in a string to hold a position specifier.
*/
-#define TK_POS_CHARS 30
+#define TK_POS_CHARS 30
+
+/*
+ * Mask used for those options which may impact the pixel height calculations
+ * of individual lines displayed in the widget.
+ */
+
+#define TK_TEXT_LINE_GEOMETRY 1
+
+/*
+ * Mask used for those options which may impact the start and end lines used
+ * in the widget.
+ */
+
+#define TK_TEXT_LINE_RANGE 2
+
+/*
+ * Used as 'action' values in calls to TkTextInvalidateLineMetrics
+ */
+
+#define TK_TEXT_INVALIDATE_ONLY 0
+#define TK_TEXT_INVALIDATE_INSERT 1
+#define TK_TEXT_INVALIDATE_DELETE 2
+
+/*
+ * Used as special 'pickPlace' values in calls to TkTextSetYView. Zero or
+ * positive values indicate a number of pixels.
+ */
+
+#define TK_TEXT_PICKPLACE -1
+#define TK_TEXT_NOPIXELADJUST -2
/*
* Declarations for variables shared among the text-related files:
*/
-EXTERN int tkBTreeDebug;
-EXTERN int tkTextDebug;
-EXTERN Tk_SegType tkTextCharType;
-EXTERN Tk_SegType tkTextLeftMarkType;
-EXTERN Tk_SegType tkTextRightMarkType;
-EXTERN Tk_SegType tkTextToggleOnType;
-EXTERN Tk_SegType tkTextToggleOffType;
-
-/*
- * Declarations for procedures that are used by the text-related files
- * but shouldn't be used anywhere else in Tk (or by Tk clients):
- */
-
-EXTERN int TkBTreeCharTagged _ANSI_ARGS_((TkTextIndex *indexPtr,
- TkTextTag *tagPtr));
-EXTERN void TkBTreeCheck _ANSI_ARGS_((TkTextBTree tree));
-EXTERN int TkBTreeCharsInLine _ANSI_ARGS_((TkTextLine *linePtr));
-EXTERN int TkBTreeBytesInLine _ANSI_ARGS_((TkTextLine *linePtr));
-EXTERN TkTextBTree TkBTreeCreate _ANSI_ARGS_((TkText *textPtr));
-EXTERN void TkBTreeDestroy _ANSI_ARGS_((TkTextBTree tree));
-EXTERN void TkBTreeDeleteChars _ANSI_ARGS_((TkTextIndex *index1Ptr,
- TkTextIndex *index2Ptr));
-EXTERN TkTextLine * TkBTreeFindLine _ANSI_ARGS_((TkTextBTree tree,
- int line));
-EXTERN TkTextTag ** TkBTreeGetTags _ANSI_ARGS_((TkTextIndex *indexPtr,
- int *numTagsPtr));
-EXTERN void TkBTreeInsertChars _ANSI_ARGS_((TkTextIndex *indexPtr,
- CONST char *string));
-EXTERN int TkBTreeLineIndex _ANSI_ARGS_((TkTextLine *linePtr));
-EXTERN void TkBTreeLinkSegment _ANSI_ARGS_((TkTextSegment *segPtr,
- TkTextIndex *indexPtr));
-EXTERN TkTextLine * TkBTreeNextLine _ANSI_ARGS_((TkTextLine *linePtr));
-EXTERN int TkBTreeNextTag _ANSI_ARGS_((TkTextSearch *searchPtr));
-EXTERN int TkBTreeNumLines _ANSI_ARGS_((TkTextBTree tree));
-EXTERN TkTextLine * TkBTreePreviousLine _ANSI_ARGS_((TkTextLine *linePtr));
-EXTERN int TkBTreePrevTag _ANSI_ARGS_((TkTextSearch *searchPtr));
-EXTERN void TkBTreeStartSearch _ANSI_ARGS_((TkTextIndex *index1Ptr,
+MODULE_SCOPE int tkBTreeDebug;
+MODULE_SCOPE int tkTextDebug;
+MODULE_SCOPE const Tk_SegType tkTextCharType;
+MODULE_SCOPE const Tk_SegType tkTextLeftMarkType;
+MODULE_SCOPE const Tk_SegType tkTextRightMarkType;
+MODULE_SCOPE const Tk_SegType tkTextToggleOnType;
+MODULE_SCOPE const Tk_SegType tkTextToggleOffType;
+
+/*
+ * Convenience macros for use by B-tree clients which want to access pixel
+ * information on each line. Currently only used by TkTextDisp.c
+ */
+
+#define TkBTreeLinePixelCount(text, line) \
+ (line)->pixels[2*(text)->pixelReference]
+#define TkBTreeLinePixelEpoch(text, line) \
+ (line)->pixels[1+2*(text)->pixelReference]
+
+/*
+ * Declarations for procedures that are used by the text-related files but
+ * shouldn't be used anywhere else in Tk (or by Tk clients):
+ */
+
+MODULE_SCOPE int TkBTreeAdjustPixelHeight(const TkText *textPtr,
+ TkTextLine *linePtr, int newPixelHeight,
+ int mergedLogicalLines);
+MODULE_SCOPE int TkBTreeCharTagged(const TkTextIndex *indexPtr,
+ TkTextTag *tagPtr);
+MODULE_SCOPE void TkBTreeCheck(TkTextBTree tree);
+MODULE_SCOPE TkTextBTree TkBTreeCreate(TkSharedText *sharedTextPtr);
+MODULE_SCOPE void TkBTreeAddClient(TkTextBTree tree, TkText *textPtr,
+ int defaultHeight);
+MODULE_SCOPE void TkBTreeClientRangeChanged(TkText *textPtr,
+ int defaultHeight);
+MODULE_SCOPE void TkBTreeRemoveClient(TkTextBTree tree,
+ TkText *textPtr);
+MODULE_SCOPE void TkBTreeDestroy(TkTextBTree tree);
+MODULE_SCOPE void TkBTreeDeleteIndexRange(TkTextBTree tree,
+ TkTextIndex *index1Ptr, TkTextIndex *index2Ptr);
+MODULE_SCOPE int TkBTreeEpoch(TkTextBTree tree);
+MODULE_SCOPE TkTextLine *TkBTreeFindLine(TkTextBTree tree,
+ const TkText *textPtr, int line);
+MODULE_SCOPE TkTextLine *TkBTreeFindPixelLine(TkTextBTree tree,
+ const TkText *textPtr, int pixels,
+ int *pixelOffset);
+MODULE_SCOPE TkTextTag **TkBTreeGetTags(const TkTextIndex *indexPtr,
+ const TkText *textPtr, int *numTagsPtr);
+MODULE_SCOPE void TkBTreeInsertChars(TkTextBTree tree,
+ TkTextIndex *indexPtr, const char *string);
+MODULE_SCOPE int TkBTreeLinesTo(const TkText *textPtr,
+ TkTextLine *linePtr);
+MODULE_SCOPE int TkBTreePixelsTo(const TkText *textPtr,
+ TkTextLine *linePtr);
+MODULE_SCOPE void TkBTreeLinkSegment(TkTextSegment *segPtr,
+ TkTextIndex *indexPtr);
+MODULE_SCOPE TkTextLine *TkBTreeNextLine(const TkText *textPtr,
+ TkTextLine *linePtr);
+MODULE_SCOPE int TkBTreeNextTag(TkTextSearch *searchPtr);
+MODULE_SCOPE int TkBTreeNumLines(TkTextBTree tree,
+ const TkText *textPtr);
+MODULE_SCOPE int TkBTreeNumPixels(TkTextBTree tree,
+ const TkText *textPtr);
+MODULE_SCOPE TkTextLine *TkBTreePreviousLine(TkText *textPtr,
+ TkTextLine *linePtr);
+MODULE_SCOPE int TkBTreePrevTag(TkTextSearch *searchPtr);
+MODULE_SCOPE void TkBTreeStartSearch(TkTextIndex *index1Ptr,
TkTextIndex *index2Ptr, TkTextTag *tagPtr,
- TkTextSearch *searchPtr));
-EXTERN void TkBTreeStartSearchBack _ANSI_ARGS_((TkTextIndex *index1Ptr,
+ TkTextSearch *searchPtr);
+MODULE_SCOPE void TkBTreeStartSearchBack(TkTextIndex *index1Ptr,
TkTextIndex *index2Ptr, TkTextTag *tagPtr,
- TkTextSearch *searchPtr));
-EXTERN void TkBTreeTag _ANSI_ARGS_((TkTextIndex *index1Ptr,
+ TkTextSearch *searchPtr);
+MODULE_SCOPE int TkBTreeTag(TkTextIndex *index1Ptr,
TkTextIndex *index2Ptr, TkTextTag *tagPtr,
- int add));
-EXTERN void TkBTreeUnlinkSegment _ANSI_ARGS_((TkTextBTree tree,
- TkTextSegment *segPtr, TkTextLine *linePtr));
-EXTERN void TkTextBindProc _ANSI_ARGS_((ClientData clientData,
- XEvent *eventPtr));
-EXTERN void TkTextChanged _ANSI_ARGS_((TkText *textPtr,
- TkTextIndex *index1Ptr, TkTextIndex *index2Ptr));
-EXTERN int TkTextCharBbox _ANSI_ARGS_((TkText *textPtr,
- TkTextIndex *indexPtr, int *xPtr, int *yPtr,
- int *widthPtr, int *heightPtr));
-EXTERN int TkTextCharLayoutProc _ANSI_ARGS_((TkText *textPtr,
+ int add);
+MODULE_SCOPE void TkBTreeUnlinkSegment(TkTextSegment *segPtr,
+ TkTextLine *linePtr);
+MODULE_SCOPE void TkTextBindProc(ClientData clientData,
+ XEvent *eventPtr);
+MODULE_SCOPE void TkTextSelectionEvent(TkText *textPtr);
+MODULE_SCOPE void TkTextChanged(TkSharedText *sharedTextPtr,
+ TkText *textPtr, const TkTextIndex *index1Ptr,
+ const TkTextIndex *index2Ptr);
+MODULE_SCOPE int TkTextIndexBbox(TkText *textPtr,
+ const TkTextIndex *indexPtr, int *xPtr, int *yPtr,
+ int *widthPtr, int *heightPtr, int *charWidthPtr);
+MODULE_SCOPE int TkTextCharLayoutProc(TkText *textPtr,
TkTextIndex *indexPtr, TkTextSegment *segPtr,
int offset, int maxX, int maxChars, int noBreakYet,
- TkWrapMode wrapMode, TkTextDispChunk *chunkPtr));
-EXTERN void TkTextCreateDInfo _ANSI_ARGS_((TkText *textPtr));
-EXTERN int TkTextDLineInfo _ANSI_ARGS_((TkText *textPtr,
- TkTextIndex *indexPtr, int *xPtr, int *yPtr,
- int *widthPtr, int *heightPtr, int *basePtr));
-EXTERN TkTextTag * TkTextCreateTag _ANSI_ARGS_((TkText *textPtr,
- CONST char *tagName));
-EXTERN void TkTextFreeDInfo _ANSI_ARGS_((TkText *textPtr));
-EXTERN void TkTextFreeTag _ANSI_ARGS_((TkText *textPtr,
- TkTextTag *tagPtr));
-EXTERN int TkTextGetIndex _ANSI_ARGS_((Tcl_Interp *interp,
- TkText *textPtr, CONST char *string,
- TkTextIndex *indexPtr));
-EXTERN TkTextTabArray * TkTextGetTabs _ANSI_ARGS_((Tcl_Interp *interp,
- Tk_Window tkwin, char *string));
-EXTERN void TkTextIndexBackBytes _ANSI_ARGS_((
- CONST TkTextIndex *srcPtr, int count,
- TkTextIndex *dstPtr));
-EXTERN void TkTextIndexBackChars _ANSI_ARGS_((
- CONST TkTextIndex *srcPtr, int count,
- TkTextIndex *dstPtr));
-EXTERN int TkTextIndexCmp _ANSI_ARGS_((
- CONST TkTextIndex *index1Ptr,
- CONST TkTextIndex *index2Ptr));
-EXTERN void TkTextIndexForwBytes _ANSI_ARGS_((
- CONST TkTextIndex *srcPtr, int count,
- TkTextIndex *dstPtr));
-EXTERN void TkTextIndexForwChars _ANSI_ARGS_((
- CONST TkTextIndex *srcPtr, int count,
- TkTextIndex *dstPtr));
-EXTERN TkTextSegment * TkTextIndexToSeg _ANSI_ARGS_((
- CONST TkTextIndex *indexPtr, int *offsetPtr));
-EXTERN void TkTextInsertDisplayProc _ANSI_ARGS_((
- TkTextDispChunk *chunkPtr, int x, int y, int height,
- int baseline, Display *display, Drawable dst,
- int screenY));
-EXTERN void TkTextLostSelection _ANSI_ARGS_((
- ClientData clientData));
-EXTERN TkTextIndex * TkTextMakeCharIndex _ANSI_ARGS_((TkTextBTree tree,
+ TkWrapMode wrapMode, TkTextDispChunk *chunkPtr);
+MODULE_SCOPE void TkTextCreateDInfo(TkText *textPtr);
+MODULE_SCOPE int TkTextDLineInfo(TkText *textPtr,
+ const TkTextIndex *indexPtr, int *xPtr, int *yPtr,
+ int *widthPtr, int *heightPtr, int *basePtr);
+MODULE_SCOPE void TkTextEmbWinDisplayProc(TkText *textPtr,
+ TkTextDispChunk *chunkPtr, int x, int y,
+ int lineHeight, int baseline, Display *display,
+ Drawable dst, int screenY);
+MODULE_SCOPE TkTextTag *TkTextCreateTag(TkText *textPtr,
+ const char *tagName, int *newTag);
+MODULE_SCOPE void TkTextFreeDInfo(TkText *textPtr);
+MODULE_SCOPE void TkTextDeleteTag(TkText *textPtr, TkTextTag *tagPtr);
+MODULE_SCOPE void TkTextFreeTag(TkText *textPtr, TkTextTag *tagPtr);
+MODULE_SCOPE int TkTextGetIndex(Tcl_Interp *interp, TkText *textPtr,
+ const char *string, TkTextIndex *indexPtr);
+MODULE_SCOPE int TkTextGetObjIndex(Tcl_Interp *interp, TkText *textPtr,
+ Tcl_Obj *idxPtr, TkTextIndex *indexPtr);
+MODULE_SCOPE int TkTextSharedGetObjIndex(Tcl_Interp *interp,
+ TkSharedText *sharedTextPtr, Tcl_Obj *idxPtr,
+ TkTextIndex *indexPtr);
+MODULE_SCOPE const TkTextIndex *TkTextGetIndexFromObj(Tcl_Interp *interp,
+ TkText *textPtr, Tcl_Obj *objPtr);
+MODULE_SCOPE TkTextTabArray *TkTextGetTabs(Tcl_Interp *interp,
+ TkText *textPtr, Tcl_Obj *stringPtr);
+MODULE_SCOPE void TkTextFindDisplayLineEnd(TkText *textPtr,
+ TkTextIndex *indexPtr, int end, int *xOffset);
+MODULE_SCOPE int TkTextIndexBackBytes(const TkText *textPtr,
+ const TkTextIndex *srcPtr, int count,
+ TkTextIndex *dstPtr);
+MODULE_SCOPE void TkTextIndexBackChars(const TkText *textPtr,
+ const TkTextIndex *srcPtr, int count,
+ TkTextIndex *dstPtr, TkTextCountType type);
+MODULE_SCOPE int TkTextIndexCmp(const TkTextIndex *index1Ptr,
+ const TkTextIndex *index2Ptr);
+MODULE_SCOPE int TkTextIndexCount(const TkText *textPtr,
+ const TkTextIndex *index1Ptr,
+ const TkTextIndex *index2Ptr,
+ TkTextCountType type);
+MODULE_SCOPE int TkTextIndexForwBytes(const TkText *textPtr,
+ const TkTextIndex *srcPtr, int count,
+ TkTextIndex *dstPtr);
+MODULE_SCOPE void TkTextIndexForwChars(const TkText *textPtr,
+ const TkTextIndex *srcPtr, int count,
+ TkTextIndex *dstPtr, TkTextCountType type);
+MODULE_SCOPE void TkTextIndexOfX(TkText *textPtr, int x,
+ TkTextIndex *indexPtr);
+MODULE_SCOPE int TkTextIndexYPixels(TkText *textPtr,
+ const TkTextIndex *indexPtr);
+MODULE_SCOPE TkTextSegment *TkTextIndexToSeg(const TkTextIndex *indexPtr,
+ int *offsetPtr);
+MODULE_SCOPE void TkTextInsertDisplayProc(TkText *textPtr,
+ TkTextDispChunk *chunkPtr, int x, int y,
+ int height, int baseline, Display *display,
+ Drawable dst, int screenY);
+MODULE_SCOPE void TkTextLostSelection(ClientData clientData);
+MODULE_SCOPE TkTextIndex *TkTextMakeCharIndex(TkTextBTree tree, TkText *textPtr,
int lineIndex, int charIndex,
- TkTextIndex *indexPtr));
-EXTERN int TkTextIsElided _ANSI_ARGS_((TkText *textPtr,
- TkTextIndex *indexPtr));
-EXTERN TkTextIndex * TkTextMakeByteIndex _ANSI_ARGS_((TkTextBTree tree,
- int lineIndex, int byteIndex,
- TkTextIndex *indexPtr));
-EXTERN int TkTextMarkCmd _ANSI_ARGS_((TkText *textPtr,
- Tcl_Interp *interp, int argc, CONST char **argv));
-EXTERN int TkTextMarkNameToIndex _ANSI_ARGS_((TkText *textPtr,
- CONST char *name, TkTextIndex *indexPtr));
-EXTERN void TkTextMarkSegToIndex _ANSI_ARGS_((TkText *textPtr,
- TkTextSegment *markPtr, TkTextIndex *indexPtr));
-EXTERN void TkTextEventuallyRepick _ANSI_ARGS_((TkText *textPtr));
-EXTERN void TkTextPickCurrent _ANSI_ARGS_((TkText *textPtr,
- XEvent *eventPtr));
-EXTERN void TkTextPixelIndex _ANSI_ARGS_((TkText *textPtr,
- int x, int y, TkTextIndex *indexPtr));
-EXTERN void TkTextPrintIndex _ANSI_ARGS_((
- CONST TkTextIndex *indexPtr, char *string));
-EXTERN void TkTextRedrawRegion _ANSI_ARGS_((TkText *textPtr,
- int x, int y, int width, int height));
-EXTERN void TkTextRedrawTag _ANSI_ARGS_((TkText *textPtr,
- TkTextIndex *index1Ptr, TkTextIndex *index2Ptr,
- TkTextTag *tagPtr, int withTag));
-EXTERN void TkTextRelayoutWindow _ANSI_ARGS_((TkText *textPtr));
-EXTERN int TkTextScanCmd _ANSI_ARGS_((TkText *textPtr,
- Tcl_Interp *interp, int argc, CONST char **argv));
-EXTERN int TkTextSeeCmd _ANSI_ARGS_((TkText *textPtr,
- Tcl_Interp *interp, int argc, CONST char **argv));
-EXTERN int TkTextSegToOffset _ANSI_ARGS_((
- CONST TkTextSegment *segPtr,
- CONST TkTextLine *linePtr));
-EXTERN TkTextSegment * TkTextSetMark _ANSI_ARGS_((TkText *textPtr,
- CONST char *name, TkTextIndex *indexPtr));
-EXTERN void TkTextSetYView _ANSI_ARGS_((TkText *textPtr,
- TkTextIndex *indexPtr, int pickPlace));
-EXTERN int TkTextTagCmd _ANSI_ARGS_((TkText *textPtr,
- Tcl_Interp *interp, int argc, CONST char **argv));
-EXTERN int TkTextImageCmd _ANSI_ARGS_((TkText *textPtr,
- Tcl_Interp *interp, int argc, CONST char **argv));
-EXTERN int TkTextImageIndex _ANSI_ARGS_((TkText *textPtr,
- CONST char *name, TkTextIndex *indexPtr));
-EXTERN int TkTextWindowCmd _ANSI_ARGS_((TkText *textPtr,
- Tcl_Interp *interp, int argc, CONST char **argv));
-EXTERN int TkTextWindowIndex _ANSI_ARGS_((TkText *textPtr,
- CONST char *name, TkTextIndex *indexPtr));
-EXTERN int TkTextXviewCmd _ANSI_ARGS_((TkText *textPtr,
- Tcl_Interp *interp, int argc, CONST char **argv));
-EXTERN int TkTextYviewCmd _ANSI_ARGS_((TkText *textPtr,
- Tcl_Interp *interp, int argc, CONST char **argv));
+ TkTextIndex *indexPtr);
+MODULE_SCOPE int TkTextMeasureDown(TkText *textPtr,
+ TkTextIndex *srcPtr, int distance);
+MODULE_SCOPE void TkTextFreeElideInfo(TkTextElideInfo *infoPtr);
+MODULE_SCOPE int TkTextIsElided(const TkText *textPtr,
+ const TkTextIndex *indexPtr,
+ TkTextElideInfo *infoPtr);
+MODULE_SCOPE TkTextIndex *TkTextMakeByteIndex(TkTextBTree tree,
+ const TkText *textPtr, int lineIndex,
+ int byteIndex, TkTextIndex *indexPtr);
+MODULE_SCOPE int TkTextMakePixelIndex(TkText *textPtr,
+ int pixelIndex, TkTextIndex *indexPtr);
+MODULE_SCOPE void TkTextInvalidateLineMetrics(
+ TkSharedText *sharedTextPtr, TkText *textPtr,
+ TkTextLine *linePtr, int lineCount, int action);
+MODULE_SCOPE int TkTextUpdateLineMetrics(TkText *textPtr, int lineNum,
+ int endLine, int doThisMuch);
+MODULE_SCOPE int TkTextUpdateOneLine(TkText *textPtr,
+ TkTextLine *linePtr, int pixelHeight,
+ TkTextIndex *indexPtr, int partialCalc);
+MODULE_SCOPE int TkTextMarkCmd(TkText *textPtr, Tcl_Interp *interp,
+ int objc, Tcl_Obj *const objv[]);
+MODULE_SCOPE int TkTextMarkNameToIndex(TkText *textPtr,
+ const char *name, TkTextIndex *indexPtr);
+MODULE_SCOPE void TkTextMarkSegToIndex(TkText *textPtr,
+ TkTextSegment *markPtr, TkTextIndex *indexPtr);
+MODULE_SCOPE void TkTextEventuallyRepick(TkText *textPtr);
+MODULE_SCOPE void TkTextPickCurrent(TkText *textPtr, XEvent *eventPtr);
+MODULE_SCOPE void TkTextPixelIndex(TkText *textPtr, int x, int y,
+ TkTextIndex *indexPtr, int *nearest);
+MODULE_SCOPE int TkTextPrintIndex(const TkText *textPtr,
+ const TkTextIndex *indexPtr, char *string);
+MODULE_SCOPE Tcl_Obj * TkTextNewIndexObj(TkText *textPtr,
+ const TkTextIndex *indexPtr);
+MODULE_SCOPE void TkTextRedrawRegion(TkText *textPtr, int x, int y,
+ int width, int height);
+MODULE_SCOPE void TkTextRedrawTag(TkSharedText *sharedTextPtr,
+ TkText *textPtr, TkTextIndex *index1Ptr,
+ TkTextIndex *index2Ptr, TkTextTag *tagPtr,
+ int withTag);
+MODULE_SCOPE void TkTextRelayoutWindow(TkText *textPtr, int mask);
+MODULE_SCOPE int TkTextScanCmd(TkText *textPtr, Tcl_Interp *interp,
+ int objc, Tcl_Obj *const objv[]);
+MODULE_SCOPE int TkTextSeeCmd(TkText *textPtr, Tcl_Interp *interp,
+ int objc, Tcl_Obj *const objv[]);
+MODULE_SCOPE int TkTextSegToOffset(const TkTextSegment *segPtr,
+ const TkTextLine *linePtr);
+MODULE_SCOPE TkTextSegment *TkTextSetMark(TkText *textPtr,
+ const char *name, TkTextIndex *indexPtr);
+MODULE_SCOPE void TkTextSetYView(TkText *textPtr,
+ TkTextIndex *indexPtr, int pickPlace);
+MODULE_SCOPE int TkTextTagCmd(TkText *textPtr, Tcl_Interp *interp,
+ int objc, Tcl_Obj *const objv[]);
+MODULE_SCOPE int TkTextImageCmd(TkText *textPtr, Tcl_Interp *interp,
+ int objc, Tcl_Obj *const objv[]);
+MODULE_SCOPE int TkTextImageIndex(TkText *textPtr,
+ const char *name, TkTextIndex *indexPtr);
+MODULE_SCOPE int TkTextWindowCmd(TkText *textPtr, Tcl_Interp *interp,
+ int objc, Tcl_Obj *const objv[]);
+MODULE_SCOPE int TkTextWindowIndex(TkText *textPtr, const char *name,
+ TkTextIndex *indexPtr);
+MODULE_SCOPE int TkTextXviewCmd(TkText *textPtr, Tcl_Interp *interp,
+ int objc, Tcl_Obj *const objv[]);
+MODULE_SCOPE int TkTextYviewCmd(TkText *textPtr, Tcl_Interp *interp,
+ int objc, Tcl_Obj *const objv[]);
+MODULE_SCOPE void TkTextWinFreeClient(Tcl_HashEntry *hPtr,
+ TkTextEmbWindowClient *client);
# undef TCL_STORAGE_CLASS
# define TCL_STORAGE_CLASS DLLIMPORT
#endif /* _TKTEXT */
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */