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authorWilliam Joye <wjoye@cfa.harvard.edu>2018-12-25 19:55:50 (GMT)
committerWilliam Joye <wjoye@cfa.harvard.edu>2018-12-25 19:55:50 (GMT)
commitff51550ee89b473c63df78de6b2a413f21105687 (patch)
treebcdca927ed2a7b05c647b9a6bfdfd4a7ca5c730e /tk8.6/generic/tkEntry.c
parent01cbf5b15ea760408c24288ccb5cf8e0af9aa299 (diff)
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update tcl/tk
Diffstat (limited to 'tk8.6/generic/tkEntry.c')
-rw-r--r--tk8.6/generic/tkEntry.c4511
1 files changed, 0 insertions, 4511 deletions
diff --git a/tk8.6/generic/tkEntry.c b/tk8.6/generic/tkEntry.c
deleted file mode 100644
index 678691f..0000000
--- a/tk8.6/generic/tkEntry.c
+++ /dev/null
@@ -1,4511 +0,0 @@
-/*
- * tkEntry.c --
- *
- * This module implements entry and spinbox widgets for the Tk toolkit.
- * An entry displays a string and allows the string to be edited. A
- * spinbox expands on the entry by adding up/down buttons that control
- * the value of the entry widget.
- *
- * Copyright (c) 1990-1994 The Regents of the University of California.
- * Copyright (c) 1994-1997 Sun Microsystems, Inc.
- * Copyright (c) 2000 Ajuba Solutions.
- * Copyright (c) 2002 ActiveState Corporation.
- *
- * See the file "license.terms" for information on usage and redistribution of
- * this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#include "tkInt.h"
-#include "default.h"
-#include "tkEntry.h"
-
-/*
- * The following macro defines how many extra pixels to leave on each side of
- * the text in the entry.
- */
-
-#define XPAD 1
-#define YPAD 1
-
-/*
- * A comparison function for double values. For Spinboxes.
- */
-
-#define MIN_DBL_VAL 1E-9
-#define DOUBLES_EQ(d1, d2) (fabs((d1) - (d2)) < MIN_DBL_VAL)
-
-
-static const char *const stateStrings[] = {
- "disabled", "normal", "readonly", NULL
-};
-
-/*
- * Definitions for -validate option values:
- */
-
-static const char *const validateStrings[] = {
- "all", "key", "focus", "focusin", "focusout", "none", NULL
-};
-enum validateType {
- VALIDATE_ALL, VALIDATE_KEY, VALIDATE_FOCUS,
- VALIDATE_FOCUSIN, VALIDATE_FOCUSOUT, VALIDATE_NONE,
- /*
- * These extra enums are for use with EntryValidateChange
- */
- VALIDATE_FORCED, VALIDATE_DELETE, VALIDATE_INSERT, VALIDATE_BUTTON
-};
-#define DEF_ENTRY_VALIDATE "none"
-#define DEF_ENTRY_INVALIDCMD ""
-
-/*
- * Information used for Entry objv parsing.
- */
-
-static const Tk_OptionSpec entryOptSpec[] = {
- {TK_OPTION_BORDER, "-background", "background", "Background",
- DEF_ENTRY_BG_COLOR, -1, Tk_Offset(Entry, normalBorder),
- 0, DEF_ENTRY_BG_MONO, 0},
- {TK_OPTION_SYNONYM, "-bd", NULL, NULL,
- NULL, 0, -1, 0, "-borderwidth", 0},
- {TK_OPTION_SYNONYM, "-bg", NULL, NULL,
- NULL, 0, -1, 0, "-background", 0},
- {TK_OPTION_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
- DEF_ENTRY_BORDER_WIDTH, -1, Tk_Offset(Entry, borderWidth), 0, 0, 0},
- {TK_OPTION_CURSOR, "-cursor", "cursor", "Cursor",
- DEF_ENTRY_CURSOR, -1, Tk_Offset(Entry, cursor),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_BORDER, "-disabledbackground", "disabledBackground",
- "DisabledBackground", DEF_ENTRY_DISABLED_BG_COLOR, -1,
- Tk_Offset(Entry, disabledBorder), TK_OPTION_NULL_OK,
- (ClientData) DEF_ENTRY_DISABLED_BG_MONO, 0},
- {TK_OPTION_COLOR, "-disabledforeground", "disabledForeground",
- "DisabledForeground", DEF_ENTRY_DISABLED_FG, -1,
- Tk_Offset(Entry, dfgColorPtr), TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_BOOLEAN, "-exportselection", "exportSelection",
- "ExportSelection", DEF_ENTRY_EXPORT_SELECTION, -1,
- Tk_Offset(Entry, exportSelection), 0, 0, 0},
- {TK_OPTION_SYNONYM, "-fg", "foreground", NULL,
- NULL, 0, -1, 0, "-foreground", 0},
- {TK_OPTION_FONT, "-font", "font", "Font",
- DEF_ENTRY_FONT, -1, Tk_Offset(Entry, tkfont), 0, 0, 0},
- {TK_OPTION_COLOR, "-foreground", "foreground", "Foreground",
- DEF_ENTRY_FG, -1, Tk_Offset(Entry, fgColorPtr), 0, 0, 0},
- {TK_OPTION_COLOR, "-highlightbackground", "highlightBackground",
- "HighlightBackground", DEF_ENTRY_HIGHLIGHT_BG,
- -1, Tk_Offset(Entry, highlightBgColorPtr), 0, 0, 0},
- {TK_OPTION_COLOR, "-highlightcolor", "highlightColor", "HighlightColor",
- DEF_ENTRY_HIGHLIGHT, -1, Tk_Offset(Entry, highlightColorPtr), 0, 0, 0},
- {TK_OPTION_PIXELS, "-highlightthickness", "highlightThickness",
- "HighlightThickness", DEF_ENTRY_HIGHLIGHT_WIDTH, -1,
- Tk_Offset(Entry, highlightWidth), 0, 0, 0},
- {TK_OPTION_BORDER, "-insertbackground", "insertBackground", "Foreground",
- DEF_ENTRY_INSERT_BG, -1, Tk_Offset(Entry, insertBorder), 0, 0, 0},
- {TK_OPTION_PIXELS, "-insertborderwidth", "insertBorderWidth",
- "BorderWidth", DEF_ENTRY_INSERT_BD_COLOR, -1,
- Tk_Offset(Entry, insertBorderWidth), 0,
- (ClientData) DEF_ENTRY_INSERT_BD_MONO, 0},
- {TK_OPTION_INT, "-insertofftime", "insertOffTime", "OffTime",
- DEF_ENTRY_INSERT_OFF_TIME, -1, Tk_Offset(Entry, insertOffTime),
- 0, 0, 0},
- {TK_OPTION_INT, "-insertontime", "insertOnTime", "OnTime",
- DEF_ENTRY_INSERT_ON_TIME, -1, Tk_Offset(Entry, insertOnTime), 0, 0, 0},
- {TK_OPTION_PIXELS, "-insertwidth", "insertWidth", "InsertWidth",
- DEF_ENTRY_INSERT_WIDTH, -1, Tk_Offset(Entry, insertWidth), 0, 0, 0},
- {TK_OPTION_STRING, "-invalidcommand", "invalidCommand", "InvalidCommand",
- DEF_ENTRY_INVALIDCMD, -1, Tk_Offset(Entry, invalidCmd),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_SYNONYM, "-invcmd", NULL, NULL,
- NULL, 0, -1, 0, "-invalidcommand", 0},
- {TK_OPTION_JUSTIFY, "-justify", "justify", "Justify",
- DEF_ENTRY_JUSTIFY, -1, Tk_Offset(Entry, justify), 0, 0, 0},
- {TK_OPTION_BORDER, "-readonlybackground", "readonlyBackground",
- "ReadonlyBackground", DEF_ENTRY_READONLY_BG_COLOR, -1,
- Tk_Offset(Entry, readonlyBorder), TK_OPTION_NULL_OK,
- (ClientData) DEF_ENTRY_READONLY_BG_MONO, 0},
- {TK_OPTION_RELIEF, "-relief", "relief", "Relief",
- DEF_ENTRY_RELIEF, -1, Tk_Offset(Entry, relief), 0, 0, 0},
- {TK_OPTION_BORDER, "-selectbackground", "selectBackground", "Foreground",
- DEF_ENTRY_SELECT_COLOR, -1, Tk_Offset(Entry, selBorder),
- 0, DEF_ENTRY_SELECT_MONO, 0},
- {TK_OPTION_PIXELS, "-selectborderwidth", "selectBorderWidth",
- "BorderWidth", DEF_ENTRY_SELECT_BD_COLOR, -1,
- Tk_Offset(Entry, selBorderWidth),
- 0, DEF_ENTRY_SELECT_BD_MONO, 0},
- {TK_OPTION_COLOR, "-selectforeground", "selectForeground", "Background",
- DEF_ENTRY_SELECT_FG_COLOR, -1, Tk_Offset(Entry, selFgColorPtr),
- TK_OPTION_NULL_OK, DEF_ENTRY_SELECT_FG_MONO, 0},
- {TK_OPTION_STRING, "-show", "show", "Show",
- DEF_ENTRY_SHOW, -1, Tk_Offset(Entry, showChar),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_STRING_TABLE, "-state", "state", "State",
- DEF_ENTRY_STATE, -1, Tk_Offset(Entry, state),
- 0, stateStrings, 0},
- {TK_OPTION_STRING, "-takefocus", "takeFocus", "TakeFocus",
- DEF_ENTRY_TAKE_FOCUS, -1, Tk_Offset(Entry, takeFocus),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_STRING, "-textvariable", "textVariable", "Variable",
- DEF_ENTRY_TEXT_VARIABLE, -1, Tk_Offset(Entry, textVarName),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_STRING_TABLE, "-validate", "validate", "Validate",
- DEF_ENTRY_VALIDATE, -1, Tk_Offset(Entry, validate),
- 0, validateStrings, 0},
- {TK_OPTION_STRING, "-validatecommand", "validateCommand","ValidateCommand",
- NULL, -1, Tk_Offset(Entry, validateCmd), TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_SYNONYM, "-vcmd", NULL, NULL,
- NULL, 0, -1, 0, "-validatecommand", 0},
- {TK_OPTION_INT, "-width", "width", "Width",
- DEF_ENTRY_WIDTH, -1, Tk_Offset(Entry, prefWidth), 0, 0, 0},
- {TK_OPTION_STRING, "-xscrollcommand", "xScrollCommand", "ScrollCommand",
- DEF_ENTRY_SCROLL_COMMAND, -1, Tk_Offset(Entry, scrollCmd),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_END, NULL, NULL, NULL, NULL, 0, -1, 0, 0, 0}
-};
-
-/*
- * Information used for Spinbox objv parsing.
- */
-
-#define DEF_SPINBOX_REPEAT_DELAY "400"
-#define DEF_SPINBOX_REPEAT_INTERVAL "100"
-
-#define DEF_SPINBOX_CMD ""
-
-#define DEF_SPINBOX_FROM "0"
-#define DEF_SPINBOX_TO "0"
-#define DEF_SPINBOX_INCREMENT "1"
-#define DEF_SPINBOX_FORMAT ""
-
-#define DEF_SPINBOX_VALUES ""
-#define DEF_SPINBOX_WRAP "0"
-
-static const Tk_OptionSpec sbOptSpec[] = {
- {TK_OPTION_BORDER, "-activebackground", "activeBackground", "Background",
- DEF_BUTTON_ACTIVE_BG_COLOR, -1, Tk_Offset(Spinbox, activeBorder),
- 0, DEF_BUTTON_ACTIVE_BG_MONO, 0},
- {TK_OPTION_BORDER, "-background", "background", "Background",
- DEF_ENTRY_BG_COLOR, -1, Tk_Offset(Entry, normalBorder),
- 0, DEF_ENTRY_BG_MONO, 0},
- {TK_OPTION_SYNONYM, "-bd", NULL, NULL,
- NULL, 0, -1, 0, "-borderwidth", 0},
- {TK_OPTION_SYNONYM, "-bg", NULL, NULL,
- NULL, 0, -1, 0, "-background", 0},
- {TK_OPTION_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
- DEF_ENTRY_BORDER_WIDTH, -1, Tk_Offset(Entry, borderWidth), 0, 0, 0},
- {TK_OPTION_BORDER, "-buttonbackground", "Button.background", "Background",
- DEF_BUTTON_BG_COLOR, -1, Tk_Offset(Spinbox, buttonBorder),
- 0, DEF_BUTTON_BG_MONO, 0},
- {TK_OPTION_CURSOR, "-buttoncursor", "Button.cursor", "Cursor",
- DEF_BUTTON_CURSOR, -1, Tk_Offset(Spinbox, bCursor),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_RELIEF, "-buttondownrelief", "Button.relief", "Relief",
- DEF_BUTTON_RELIEF, -1, Tk_Offset(Spinbox, bdRelief), 0, 0, 0},
- {TK_OPTION_RELIEF, "-buttonuprelief", "Button.relief", "Relief",
- DEF_BUTTON_RELIEF, -1, Tk_Offset(Spinbox, buRelief), 0, 0, 0},
- {TK_OPTION_STRING, "-command", "command", "Command",
- DEF_SPINBOX_CMD, -1, Tk_Offset(Spinbox, command),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_CURSOR, "-cursor", "cursor", "Cursor",
- DEF_ENTRY_CURSOR, -1, Tk_Offset(Entry, cursor),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_BORDER, "-disabledbackground", "disabledBackground",
- "DisabledBackground", DEF_ENTRY_DISABLED_BG_COLOR, -1,
- Tk_Offset(Entry, disabledBorder), TK_OPTION_NULL_OK,
- (ClientData) DEF_ENTRY_DISABLED_BG_MONO, 0},
- {TK_OPTION_COLOR, "-disabledforeground", "disabledForeground",
- "DisabledForeground", DEF_ENTRY_DISABLED_FG, -1,
- Tk_Offset(Entry, dfgColorPtr), TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_BOOLEAN, "-exportselection", "exportSelection",
- "ExportSelection", DEF_ENTRY_EXPORT_SELECTION, -1,
- Tk_Offset(Entry, exportSelection), 0, 0, 0},
- {TK_OPTION_SYNONYM, "-fg", "foreground", NULL,
- NULL, 0, -1, 0, "-foreground", 0},
- {TK_OPTION_FONT, "-font", "font", "Font",
- DEF_ENTRY_FONT, -1, Tk_Offset(Entry, tkfont), 0, 0, 0},
- {TK_OPTION_COLOR, "-foreground", "foreground", "Foreground",
- DEF_ENTRY_FG, -1, Tk_Offset(Entry, fgColorPtr), 0, 0, 0},
- {TK_OPTION_STRING, "-format", "format", "Format",
- DEF_SPINBOX_FORMAT, -1, Tk_Offset(Spinbox, reqFormat),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_DOUBLE, "-from", "from", "From",
- DEF_SPINBOX_FROM, -1, Tk_Offset(Spinbox, fromValue), 0, 0, 0},
- {TK_OPTION_COLOR, "-highlightbackground", "highlightBackground",
- "HighlightBackground", DEF_ENTRY_HIGHLIGHT_BG,
- -1, Tk_Offset(Entry, highlightBgColorPtr), 0, 0, 0},
- {TK_OPTION_COLOR, "-highlightcolor", "highlightColor", "HighlightColor",
- DEF_ENTRY_HIGHLIGHT, -1, Tk_Offset(Entry, highlightColorPtr), 0, 0, 0},
- {TK_OPTION_PIXELS, "-highlightthickness", "highlightThickness",
- "HighlightThickness", DEF_ENTRY_HIGHLIGHT_WIDTH, -1,
- Tk_Offset(Entry, highlightWidth), 0, 0, 0},
- {TK_OPTION_DOUBLE, "-increment", "increment", "Increment",
- DEF_SPINBOX_INCREMENT, -1, Tk_Offset(Spinbox, increment), 0, 0, 0},
- {TK_OPTION_BORDER, "-insertbackground", "insertBackground", "Foreground",
- DEF_ENTRY_INSERT_BG, -1, Tk_Offset(Entry, insertBorder), 0, 0, 0},
- {TK_OPTION_PIXELS, "-insertborderwidth", "insertBorderWidth",
- "BorderWidth", DEF_ENTRY_INSERT_BD_COLOR, -1,
- Tk_Offset(Entry, insertBorderWidth), 0,
- (ClientData) DEF_ENTRY_INSERT_BD_MONO, 0},
- {TK_OPTION_INT, "-insertofftime", "insertOffTime", "OffTime",
- DEF_ENTRY_INSERT_OFF_TIME, -1, Tk_Offset(Entry, insertOffTime),
- 0, 0, 0},
- {TK_OPTION_INT, "-insertontime", "insertOnTime", "OnTime",
- DEF_ENTRY_INSERT_ON_TIME, -1, Tk_Offset(Entry, insertOnTime), 0, 0, 0},
- {TK_OPTION_PIXELS, "-insertwidth", "insertWidth", "InsertWidth",
- DEF_ENTRY_INSERT_WIDTH, -1, Tk_Offset(Entry, insertWidth), 0, 0, 0},
- {TK_OPTION_STRING, "-invalidcommand", "invalidCommand", "InvalidCommand",
- DEF_ENTRY_INVALIDCMD, -1, Tk_Offset(Entry, invalidCmd),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_SYNONYM, "-invcmd", NULL, NULL,
- NULL, 0, -1, 0, "-invalidcommand", 0},
- {TK_OPTION_JUSTIFY, "-justify", "justify", "Justify",
- DEF_ENTRY_JUSTIFY, -1, Tk_Offset(Entry, justify), 0, 0, 0},
- {TK_OPTION_RELIEF, "-relief", "relief", "Relief",
- DEF_ENTRY_RELIEF, -1, Tk_Offset(Entry, relief), 0, 0, 0},
- {TK_OPTION_BORDER, "-readonlybackground", "readonlyBackground",
- "ReadonlyBackground", DEF_ENTRY_READONLY_BG_COLOR, -1,
- Tk_Offset(Entry, readonlyBorder), TK_OPTION_NULL_OK,
- (ClientData) DEF_ENTRY_READONLY_BG_MONO, 0},
- {TK_OPTION_INT, "-repeatdelay", "repeatDelay", "RepeatDelay",
- DEF_SPINBOX_REPEAT_DELAY, -1, Tk_Offset(Spinbox, repeatDelay),
- 0, 0, 0},
- {TK_OPTION_INT, "-repeatinterval", "repeatInterval", "RepeatInterval",
- DEF_SPINBOX_REPEAT_INTERVAL, -1, Tk_Offset(Spinbox, repeatInterval),
- 0, 0, 0},
- {TK_OPTION_BORDER, "-selectbackground", "selectBackground", "Foreground",
- DEF_ENTRY_SELECT_COLOR, -1, Tk_Offset(Entry, selBorder),
- 0, DEF_ENTRY_SELECT_MONO, 0},
- {TK_OPTION_PIXELS, "-selectborderwidth", "selectBorderWidth",
- "BorderWidth", DEF_ENTRY_SELECT_BD_COLOR, -1,
- Tk_Offset(Entry, selBorderWidth),
- 0, DEF_ENTRY_SELECT_BD_MONO, 0},
- {TK_OPTION_COLOR, "-selectforeground", "selectForeground", "Background",
- DEF_ENTRY_SELECT_FG_COLOR, -1, Tk_Offset(Entry, selFgColorPtr),
- TK_OPTION_NULL_OK, DEF_ENTRY_SELECT_FG_MONO, 0},
- {TK_OPTION_STRING_TABLE, "-state", "state", "State",
- DEF_ENTRY_STATE, -1, Tk_Offset(Entry, state),
- 0, stateStrings, 0},
- {TK_OPTION_STRING, "-takefocus", "takeFocus", "TakeFocus",
- DEF_ENTRY_TAKE_FOCUS, -1, Tk_Offset(Entry, takeFocus),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_STRING, "-textvariable", "textVariable", "Variable",
- DEF_ENTRY_TEXT_VARIABLE, -1, Tk_Offset(Entry, textVarName),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_DOUBLE, "-to", "to", "To",
- DEF_SPINBOX_TO, -1, Tk_Offset(Spinbox, toValue), 0, 0, 0},
- {TK_OPTION_STRING_TABLE, "-validate", "validate", "Validate",
- DEF_ENTRY_VALIDATE, -1, Tk_Offset(Entry, validate),
- 0, validateStrings, 0},
- {TK_OPTION_STRING, "-validatecommand", "validateCommand","ValidateCommand",
- NULL, -1, Tk_Offset(Entry, validateCmd), TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_STRING, "-values", "values", "Values",
- DEF_SPINBOX_VALUES, -1, Tk_Offset(Spinbox, valueStr),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_SYNONYM, "-vcmd", NULL, NULL,
- NULL, 0, -1, 0, "-validatecommand", 0},
- {TK_OPTION_INT, "-width", "width", "Width",
- DEF_ENTRY_WIDTH, -1, Tk_Offset(Entry, prefWidth), 0, 0, 0},
- {TK_OPTION_BOOLEAN, "-wrap", "wrap", "Wrap",
- DEF_SPINBOX_WRAP, -1, Tk_Offset(Spinbox, wrap), 0, 0, 0},
- {TK_OPTION_STRING, "-xscrollcommand", "xScrollCommand", "ScrollCommand",
- DEF_ENTRY_SCROLL_COMMAND, -1, Tk_Offset(Entry, scrollCmd),
- TK_OPTION_NULL_OK, 0, 0},
- {TK_OPTION_END, NULL, NULL, NULL, NULL, 0, -1, 0, 0, 0}
-};
-
-/*
- * The following tables define the entry widget commands (and sub-commands)
- * and map the indexes into the string tables into enumerated types used to
- * dispatch the entry widget command.
- */
-
-static const char *const entryCmdNames[] = {
- "bbox", "cget", "configure", "delete", "get", "icursor", "index",
- "insert", "scan", "selection", "validate", "xview", NULL
-};
-
-enum entryCmd {
- COMMAND_BBOX, COMMAND_CGET, COMMAND_CONFIGURE, COMMAND_DELETE,
- COMMAND_GET, COMMAND_ICURSOR, COMMAND_INDEX, COMMAND_INSERT,
- COMMAND_SCAN, COMMAND_SELECTION, COMMAND_VALIDATE, COMMAND_XVIEW
-};
-
-static const char *const selCmdNames[] = {
- "adjust", "clear", "from", "present", "range", "to", NULL
-};
-
-enum selCmd {
- SELECTION_ADJUST, SELECTION_CLEAR, SELECTION_FROM,
- SELECTION_PRESENT, SELECTION_RANGE, SELECTION_TO
-};
-
-/*
- * The following tables define the spinbox widget commands (and sub-commands)
- * and map the indexes into the string tables into enumerated types used to
- * dispatch the spinbox widget command.
- */
-
-static const char *const sbCmdNames[] = {
- "bbox", "cget", "configure", "delete", "get", "icursor", "identify",
- "index", "insert", "invoke", "scan", "selection", "set",
- "validate", "xview", NULL
-};
-
-enum sbCmd {
- SB_CMD_BBOX, SB_CMD_CGET, SB_CMD_CONFIGURE, SB_CMD_DELETE,
- SB_CMD_GET, SB_CMD_ICURSOR, SB_CMD_IDENTIFY, SB_CMD_INDEX,
- SB_CMD_INSERT, SB_CMD_INVOKE, SB_CMD_SCAN, SB_CMD_SELECTION,
- SB_CMD_SET, SB_CMD_VALIDATE, SB_CMD_XVIEW
-};
-
-static const char *const sbSelCmdNames[] = {
- "adjust", "clear", "element", "from", "present", "range", "to", NULL
-};
-
-enum sbselCmd {
- SB_SEL_ADJUST, SB_SEL_CLEAR, SB_SEL_ELEMENT, SB_SEL_FROM,
- SB_SEL_PRESENT, SB_SEL_RANGE, SB_SEL_TO
-};
-
-/*
- * Extra for selection of elements
- */
-
-/*
- * This is the string array corresponding to the enum in selelement. If you
- * modify them, you must modify the strings here.
- */
-
-static const char *const selElementNames[] = {
- "none", "buttondown", "buttonup", NULL, "entry"
-};
-
-/*
- * Flags for GetEntryIndex function:
- */
-
-#define ZERO_OK 1
-#define LAST_PLUS_ONE_OK 2
-
-/*
- * Forward declarations for functions defined later in this file:
- */
-
-static int ConfigureEntry(Tcl_Interp *interp, Entry *entryPtr,
- int objc, Tcl_Obj *const objv[]);
-static int DeleteChars(Entry *entryPtr, int index, int count);
-static void DestroyEntry(void *memPtr);
-static void DisplayEntry(ClientData clientData);
-static void EntryBlinkProc(ClientData clientData);
-static void EntryCmdDeletedProc(ClientData clientData);
-static void EntryComputeGeometry(Entry *entryPtr);
-static void EntryEventProc(ClientData clientData,
- XEvent *eventPtr);
-static void EntryFocusProc(Entry *entryPtr, int gotFocus);
-static int EntryFetchSelection(ClientData clientData, int offset,
- char *buffer, int maxBytes);
-static void EntryLostSelection(ClientData clientData);
-static void EventuallyRedraw(Entry *entryPtr);
-static void EntryScanTo(Entry *entryPtr, int y);
-static void EntrySetValue(Entry *entryPtr, const char *value);
-static void EntrySelectTo(Entry *entryPtr, int index);
-static char * EntryTextVarProc(ClientData clientData,
- Tcl_Interp *interp, const char *name1,
- const char *name2, int flags);
-static void EntryUpdateScrollbar(Entry *entryPtr);
-static int EntryValidate(Entry *entryPtr, char *cmd);
-static int EntryValidateChange(Entry *entryPtr, const char *change,
- const char *newStr, int index, int type);
-static void ExpandPercents(Entry *entryPtr, const char *before,
- const char *change, const char *newStr, int index,
- int type, Tcl_DString *dsPtr);
-static int EntryValueChanged(Entry *entryPtr,
- const char *newValue);
-static void EntryVisibleRange(Entry *entryPtr,
- double *firstPtr, double *lastPtr);
-static int EntryWidgetObjCmd(ClientData clientData,
- Tcl_Interp *interp, int objc,
- Tcl_Obj *const objv[]);
-static void EntryWorldChanged(ClientData instanceData);
-static int GetEntryIndex(Tcl_Interp *interp, Entry *entryPtr,
- const char *string, int *indexPtr);
-static int InsertChars(Entry *entryPtr, int index, const char *string);
-
-/*
- * These forward declarations are the spinbox specific ones:
- */
-
-static int SpinboxWidgetObjCmd(ClientData clientData,
- Tcl_Interp *interp, int objc,
- Tcl_Obj *const objv[]);
-static int GetSpinboxElement(Spinbox *sbPtr, int x, int y);
-static int SpinboxInvoke(Tcl_Interp *interp, Spinbox *sbPtr,
- int element);
-static int ComputeFormat(Spinbox *sbPtr);
-
-/*
- * The structure below defines widget class behavior by means of functions
- * that can be invoked from generic window code.
- */
-
-static const Tk_ClassProcs entryClass = {
- sizeof(Tk_ClassProcs), /* size */
- EntryWorldChanged, /* worldChangedProc */
- NULL, /* createProc */
- NULL /* modalProc */
-};
-
-/*
- *--------------------------------------------------------------
- *
- * Tk_EntryObjCmd --
- *
- * This function is invoked to process the "entry" Tcl command. See the
- * user documentation for details on what it does.
- *
- * Results:
- * A standard Tcl result.
- *
- * Side effects:
- * See the user documentation.
- *
- *--------------------------------------------------------------
- */
-
-int
-Tk_EntryObjCmd(
- ClientData clientData, /* NULL. */
- Tcl_Interp *interp, /* Current interpreter. */
- int objc, /* Number of arguments. */
- Tcl_Obj *const objv[]) /* Argument objects. */
-{
- register Entry *entryPtr;
- Tk_OptionTable optionTable;
- Tk_Window tkwin;
- char *tmp;
-
- if (objc < 2) {
- Tcl_WrongNumArgs(interp, 1, objv, "pathName ?-option value ...?");
- return TCL_ERROR;
- }
-
- tkwin = Tk_CreateWindowFromPath(interp, Tk_MainWindow(interp),
- Tcl_GetString(objv[1]), NULL);
- if (tkwin == NULL) {
- return TCL_ERROR;
- }
-
- /*
- * Create the option table for this widget class. If it has already been
- * created, Tk will return the cached value.
- */
-
- optionTable = Tk_CreateOptionTable(interp, entryOptSpec);
-
- /*
- * Initialize the fields of the structure that won't be initialized by
- * ConfigureEntry, or that ConfigureEntry requires to be initialized
- * already (e.g. resource pointers). Only the non-NULL/0 data must be
- * initialized as memset covers the rest.
- */
-
- entryPtr = ckalloc(sizeof(Entry));
- memset(entryPtr, 0, sizeof(Entry));
-
- entryPtr->tkwin = tkwin;
- entryPtr->display = Tk_Display(tkwin);
- entryPtr->interp = interp;
- entryPtr->widgetCmd = Tcl_CreateObjCommand(interp,
- Tk_PathName(entryPtr->tkwin), EntryWidgetObjCmd, entryPtr,
- EntryCmdDeletedProc);
- entryPtr->optionTable = optionTable;
- entryPtr->type = TK_ENTRY;
- tmp = ckalloc(1);
- tmp[0] = '\0';
- entryPtr->string = tmp;
- entryPtr->selectFirst = -1;
- entryPtr->selectLast = -1;
-
- entryPtr->cursor = None;
- entryPtr->exportSelection = 1;
- entryPtr->justify = TK_JUSTIFY_LEFT;
- entryPtr->relief = TK_RELIEF_FLAT;
- entryPtr->state = STATE_NORMAL;
- entryPtr->displayString = entryPtr->string;
- entryPtr->inset = XPAD;
- entryPtr->textGC = None;
- entryPtr->selTextGC = None;
- entryPtr->highlightGC = None;
- entryPtr->avgWidth = 1;
- entryPtr->validate = VALIDATE_NONE;
-
- /*
- * Keep a hold of the associated tkwin until we destroy the entry,
- * otherwise Tk might free it while we still need it.
- */
-
- Tcl_Preserve(entryPtr->tkwin);
-
- Tk_SetClass(entryPtr->tkwin, "Entry");
- Tk_SetClassProcs(entryPtr->tkwin, &entryClass, entryPtr);
- Tk_CreateEventHandler(entryPtr->tkwin,
- ExposureMask|StructureNotifyMask|FocusChangeMask,
- EntryEventProc, entryPtr);
- Tk_CreateSelHandler(entryPtr->tkwin, XA_PRIMARY, XA_STRING,
- EntryFetchSelection, entryPtr, XA_STRING);
-
- if ((Tk_InitOptions(interp, (char *) entryPtr, optionTable, tkwin)
- != TCL_OK) ||
- (ConfigureEntry(interp, entryPtr, objc-2, objv+2) != TCL_OK)) {
- Tk_DestroyWindow(entryPtr->tkwin);
- return TCL_ERROR;
- }
-
- Tcl_SetObjResult(interp, TkNewWindowObj(entryPtr->tkwin));
- return TCL_OK;
-}
-
-/*
- *--------------------------------------------------------------
- *
- * EntryWidgetObjCmd --
- *
- * This function is invoked to process the Tcl command that corresponds
- * to a widget managed by this module. See the user documentation for
- * details on what it does.
- *
- * Results:
- * A standard Tcl result.
- *
- * Side effects:
- * See the user documentation.
- *
- *--------------------------------------------------------------
- */
-
-static int
-EntryWidgetObjCmd(
- ClientData clientData, /* Information about entry widget. */
- Tcl_Interp *interp, /* Current interpreter. */
- int objc, /* Number of arguments. */
- Tcl_Obj *const objv[]) /* Argument objects. */
-{
- Entry *entryPtr = clientData;
- int cmdIndex, selIndex, result;
- Tcl_Obj *objPtr;
-
- if (objc < 2) {
- Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?");
- return TCL_ERROR;
- }
-
- /*
- * Parse the widget command by looking up the second token in the list of
- * valid command names.
- */
-
- result = Tcl_GetIndexFromObj(interp, objv[1], entryCmdNames, "option", 0,
- &cmdIndex);
- if (result != TCL_OK) {
- return result;
- }
-
- Tcl_Preserve(entryPtr);
- switch ((enum entryCmd) cmdIndex) {
- case COMMAND_BBOX: {
- int index, x, y, width, height;
- Tcl_Obj *bbox[4];
-
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "index");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[2]),
- &index) != TCL_OK) {
- goto error;
- }
- if ((index == entryPtr->numChars) && (index > 0)) {
- index--;
- }
- Tk_CharBbox(entryPtr->textLayout, index, &x, &y, &width, &height);
- bbox[0] = Tcl_NewIntObj(x + entryPtr->layoutX);
- bbox[1] = Tcl_NewIntObj(y + entryPtr->layoutY);
- bbox[2] = Tcl_NewIntObj(width);
- bbox[3] = Tcl_NewIntObj(height);
- Tcl_SetObjResult(interp, Tcl_NewListObj(4, bbox));
- break;
- }
-
- case COMMAND_CGET:
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "option");
- goto error;
- }
-
- objPtr = Tk_GetOptionValue(interp, (char *) entryPtr,
- entryPtr->optionTable, objv[2], entryPtr->tkwin);
- if (objPtr == NULL) {
- goto error;
- }
- Tcl_SetObjResult(interp, objPtr);
- break;
-
- case COMMAND_CONFIGURE:
- if (objc <= 3) {
- objPtr = Tk_GetOptionInfo(interp, (char *) entryPtr,
- entryPtr->optionTable,
- (objc == 3) ? objv[2] : NULL,
- entryPtr->tkwin);
- if (objPtr == NULL) {
- goto error;
- }
- Tcl_SetObjResult(interp, objPtr);
- } else {
- result = ConfigureEntry(interp, entryPtr, objc-2, objv+2);
- }
- break;
-
- case COMMAND_DELETE: {
- int first, last, code;
-
- if ((objc < 3) || (objc > 4)) {
- Tcl_WrongNumArgs(interp, 2, objv, "firstIndex ?lastIndex?");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[2]),
- &first) != TCL_OK) {
- goto error;
- }
- if (objc == 3) {
- last = first + 1;
- } else if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[3]),
- &last) != TCL_OK) {
- goto error;
- }
- if ((last >= first) && (entryPtr->state == STATE_NORMAL)) {
- code = DeleteChars(entryPtr, first, last - first);
- if (code != TCL_OK) {
- goto error;
- }
- }
- break;
- }
-
- case COMMAND_GET:
- if (objc != 2) {
- Tcl_WrongNumArgs(interp, 2, objv, NULL);
- goto error;
- }
- Tcl_SetObjResult(interp, Tcl_NewStringObj(entryPtr->string, -1));
- break;
-
- case COMMAND_ICURSOR:
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "pos");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[2]),
- &entryPtr->insertPos) != TCL_OK) {
- goto error;
- }
- EventuallyRedraw(entryPtr);
- break;
-
- case COMMAND_INDEX: {
- int index;
-
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "string");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[2]),
- &index) != TCL_OK) {
- goto error;
- }
- Tcl_SetObjResult(interp, Tcl_NewIntObj(index));
- break;
- }
-
- case COMMAND_INSERT: {
- int index, code;
-
- if (objc != 4) {
- Tcl_WrongNumArgs(interp, 2, objv, "index text");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[2]),
- &index) != TCL_OK) {
- goto error;
- }
- if (entryPtr->state == STATE_NORMAL) {
- code = InsertChars(entryPtr, index, Tcl_GetString(objv[3]));
- if (code != TCL_OK) {
- goto error;
- }
- }
- break;
- }
-
- case COMMAND_SCAN: {
- int x;
- const char *minorCmd;
-
- if (objc != 4) {
- Tcl_WrongNumArgs(interp, 2, objv, "mark|dragto x");
- goto error;
- }
- if (Tcl_GetIntFromObj(interp, objv[3], &x) != TCL_OK) {
- goto error;
- }
-
- minorCmd = Tcl_GetString(objv[2]);
- if (minorCmd[0] == 'm'
- && (strncmp(minorCmd, "mark", strlen(minorCmd)) == 0)) {
- entryPtr->scanMarkX = x;
- entryPtr->scanMarkIndex = entryPtr->leftIndex;
- } else if ((minorCmd[0] == 'd')
- && (strncmp(minorCmd, "dragto", strlen(minorCmd)) == 0)) {
- EntryScanTo(entryPtr, x);
- } else {
- Tcl_SetObjResult(interp, Tcl_ObjPrintf(
- "bad scan option \"%s\": must be mark or dragto",
- minorCmd));
- Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "INDEX", "scan option",
- minorCmd, NULL);
- goto error;
- }
- break;
- }
-
- case COMMAND_SELECTION: {
- int index, index2;
-
- if (objc < 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "option ?index?");
- goto error;
- }
-
- /*
- * Parse the selection sub-command, using the command table
- * "selCmdNames" defined above.
- */
-
- result = Tcl_GetIndexFromObj(interp, objv[2], selCmdNames,
- "selection option", 0, &selIndex);
- if (result != TCL_OK) {
- goto error;
- }
-
- /*
- * Disabled entries don't allow the selection to be modified, but
- * 'selection present' must return a boolean.
- */
-
- if ((entryPtr->state == STATE_DISABLED)
- && (selIndex != SELECTION_PRESENT)) {
- goto done;
- }
-
- switch (selIndex) {
- case SELECTION_ADJUST:
- if (objc != 4) {
- Tcl_WrongNumArgs(interp, 3, objv, "index");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr,
- Tcl_GetString(objv[3]), &index) != TCL_OK) {
- goto error;
- }
- if (entryPtr->selectFirst >= 0) {
- int half1, half2;
-
- half1 = (entryPtr->selectFirst + entryPtr->selectLast)/2;
- half2 = (entryPtr->selectFirst + entryPtr->selectLast + 1)/2;
- if (index < half1) {
- entryPtr->selectAnchor = entryPtr->selectLast;
- } else if (index > half2) {
- entryPtr->selectAnchor = entryPtr->selectFirst;
- } else {
- /*
- * We're at about the halfway point in the selection; just
- * keep the existing anchor.
- */
- }
- }
- EntrySelectTo(entryPtr, index);
- break;
-
- case SELECTION_CLEAR:
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 3, objv, NULL);
- goto error;
- }
- if (entryPtr->selectFirst >= 0) {
- entryPtr->selectFirst = -1;
- entryPtr->selectLast = -1;
- EventuallyRedraw(entryPtr);
- }
- goto done;
-
- case SELECTION_FROM:
- if (objc != 4) {
- Tcl_WrongNumArgs(interp, 3, objv, "index");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr,
- Tcl_GetString(objv[3]), &index) != TCL_OK) {
- goto error;
- }
- entryPtr->selectAnchor = index;
- break;
-
- case SELECTION_PRESENT:
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 3, objv, NULL);
- goto error;
- }
- Tcl_SetObjResult(interp,
- Tcl_NewBooleanObj(entryPtr->selectFirst >= 0));
- goto done;
-
- case SELECTION_RANGE:
- if (objc != 5) {
- Tcl_WrongNumArgs(interp, 3, objv, "start end");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[3]),
- &index) != TCL_OK) {
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[4]),
- &index2) != TCL_OK) {
- goto error;
- }
- if (index >= index2) {
- entryPtr->selectFirst = -1;
- entryPtr->selectLast = -1;
- } else {
- entryPtr->selectFirst = index;
- entryPtr->selectLast = index2;
- }
- if (!(entryPtr->flags & GOT_SELECTION)
- && (entryPtr->exportSelection)
- && (!Tcl_IsSafe(entryPtr->interp))) {
- Tk_OwnSelection(entryPtr->tkwin, XA_PRIMARY,
- EntryLostSelection, entryPtr);
- entryPtr->flags |= GOT_SELECTION;
- }
- EventuallyRedraw(entryPtr);
- break;
-
- case SELECTION_TO:
- if (objc != 4) {
- Tcl_WrongNumArgs(interp, 3, objv, "index");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr,
- Tcl_GetString(objv[3]), &index) != TCL_OK) {
- goto error;
- }
- EntrySelectTo(entryPtr, index);
- break;
- }
- break;
- }
-
- case COMMAND_VALIDATE: {
- int code;
-
- if (objc != 2) {
- Tcl_WrongNumArgs(interp, 2, objv, NULL);
- goto error;
- }
- selIndex = entryPtr->validate;
- entryPtr->validate = VALIDATE_ALL;
- code = EntryValidateChange(entryPtr, NULL, entryPtr->string,
- -1, VALIDATE_FORCED);
- if (entryPtr->validate != VALIDATE_NONE) {
- entryPtr->validate = selIndex;
- }
- Tcl_SetObjResult(interp, Tcl_NewBooleanObj(code == TCL_OK));
- break;
- }
-
- case COMMAND_XVIEW: {
- int index;
-
- if (objc == 2) {
- double first, last;
- Tcl_Obj *span[2];
-
- EntryVisibleRange(entryPtr, &first, &last);
- span[0] = Tcl_NewDoubleObj(first);
- span[1] = Tcl_NewDoubleObj(last);
- Tcl_SetObjResult(interp, Tcl_NewListObj(2, span));
- goto done;
- } else if (objc == 3) {
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[2]),
- &index) != TCL_OK) {
- goto error;
- }
- } else {
- double fraction;
- int count;
-
- index = entryPtr->leftIndex;
- switch (Tk_GetScrollInfoObj(interp, objc, objv, &fraction,
- &count)) {
- case TK_SCROLL_ERROR:
- goto error;
- case TK_SCROLL_MOVETO:
- index = (int) ((fraction * entryPtr->numChars) + 0.5);
- break;
- case TK_SCROLL_PAGES: {
- int charsPerPage;
-
- charsPerPage = ((Tk_Width(entryPtr->tkwin)
- - 2 * entryPtr->inset) / entryPtr->avgWidth) - 2;
- if (charsPerPage < 1) {
- charsPerPage = 1;
- }
- index += count * charsPerPage;
- break;
- }
- case TK_SCROLL_UNITS:
- index += count;
- break;
- }
- }
- if (index >= entryPtr->numChars) {
- index = entryPtr->numChars - 1;
- }
- if (index < 0) {
- index = 0;
- }
- entryPtr->leftIndex = index;
- entryPtr->flags |= UPDATE_SCROLLBAR;
- EntryComputeGeometry(entryPtr);
- EventuallyRedraw(entryPtr);
- break;
- }
- }
-
- done:
- Tcl_Release(entryPtr);
- return result;
-
- error:
- Tcl_Release(entryPtr);
- return TCL_ERROR;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * DestroyEntry --
- *
- * This function is invoked by Tcl_EventuallyFree or Tcl_Release to clean
- * up the internal structure of an entry at a safe time (when no-one is
- * using it anymore).
- *
- * Results:
- * None.
- *
- * Side effects:
- * Everything associated with the entry is freed up.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-DestroyEntry(
- void *memPtr) /* Info about entry widget. */
-{
- Entry *entryPtr = memPtr;
-
- /*
- * Free up all the stuff that requires special handling, then let
- * Tk_FreeOptions handle all the standard option-related stuff.
- */
-
- ckfree((char *)entryPtr->string);
- if (entryPtr->textVarName != NULL) {
- Tcl_UntraceVar2(entryPtr->interp, entryPtr->textVarName,
- NULL, TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
- EntryTextVarProc, entryPtr);
- entryPtr->flags &= ~ENTRY_VAR_TRACED;
- }
- if (entryPtr->textGC != None) {
- Tk_FreeGC(entryPtr->display, entryPtr->textGC);
- }
- if (entryPtr->selTextGC != None) {
- Tk_FreeGC(entryPtr->display, entryPtr->selTextGC);
- }
- Tcl_DeleteTimerHandler(entryPtr->insertBlinkHandler);
- if (entryPtr->displayString != entryPtr->string) {
- ckfree((char *)entryPtr->displayString);
- }
- if (entryPtr->type == TK_SPINBOX) {
- Spinbox *sbPtr = (Spinbox *) entryPtr;
-
- if (sbPtr->listObj != NULL) {
- Tcl_DecrRefCount(sbPtr->listObj);
- sbPtr->listObj = NULL;
- }
- if (sbPtr->formatBuf) {
- ckfree(sbPtr->formatBuf);
- }
- }
- Tk_FreeTextLayout(entryPtr->textLayout);
- Tk_FreeConfigOptions((char *) entryPtr, entryPtr->optionTable,
- entryPtr->tkwin);
- Tcl_Release(entryPtr->tkwin);
- entryPtr->tkwin = NULL;
-
- ckfree(entryPtr);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * ConfigureEntry --
- *
- * This function is called to process an argv/argc list, plus the Tk
- * option database, in order to configure (or reconfigure) an entry
- * widget.
- *
- * Results:
- * The return value is a standard Tcl result. If TCL_ERROR is returned,
- * then the interp's result contains an error message.
- *
- * Side effects:
- * Configuration information, such as colors, border width, etc. get set
- * for entryPtr; old resources get freed, if there were any.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-ConfigureEntry(
- Tcl_Interp *interp, /* Used for error reporting. */
- Entry *entryPtr, /* Information about widget; may or may not
- * already have values for some fields. */
- int objc, /* Number of valid entries in argv. */
- Tcl_Obj *const objv[]) /* Argument objects. */
-{
- Tk_SavedOptions savedOptions;
- Tk_3DBorder border;
- Tcl_Obj *errorResult = NULL;
- Spinbox *sbPtr = (Spinbox *) entryPtr;
- /* Only used when this widget is of type
- * TK_SPINBOX */
- char *oldValues = NULL; /* lint initialization */
- char *oldFormat = NULL; /* lint initialization */
- int error;
- int oldExport = 0; /* lint initialization */
- int valuesChanged = 0; /* lint initialization */
- double oldFrom = 0.0; /* lint initialization */
- double oldTo = 0.0; /* lint initialization */
- int code;
-
- /*
- * Eliminate any existing trace on a variable monitored by the entry.
- */
-
- if ((entryPtr->textVarName != NULL)
- && (entryPtr->flags & ENTRY_VAR_TRACED)) {
- Tcl_UntraceVar2(interp, entryPtr->textVarName, NULL,
- TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
- EntryTextVarProc, entryPtr);
- entryPtr->flags &= ~ENTRY_VAR_TRACED;
- }
-
- /*
- * Store old values that we need to effect certain behavior if they change
- * value.
- */
-
- oldExport = (entryPtr->exportSelection) && (!Tcl_IsSafe(entryPtr->interp));
- if (entryPtr->type == TK_SPINBOX) {
- oldValues = sbPtr->valueStr;
- oldFormat = sbPtr->reqFormat;
- oldFrom = sbPtr->fromValue;
- oldTo = sbPtr->toValue;
- }
-
- for (error = 0; error <= 1; error++) {
- if (!error) {
- /*
- * First pass: set options to new values.
- */
-
- if (Tk_SetOptions(interp, (char *) entryPtr,
- entryPtr->optionTable, objc, objv,
- entryPtr->tkwin, &savedOptions, NULL) != TCL_OK) {
- continue;
- }
- } else {
- /*
- * Second pass: restore options to old values.
- */
-
- errorResult = Tcl_GetObjResult(interp);
- Tcl_IncrRefCount(errorResult);
- Tk_RestoreSavedOptions(&savedOptions);
- }
-
- /*
- * A few other options also need special processing, such as parsing
- * the geometry and setting the background from a 3-D border.
- */
-
- if ((entryPtr->state == STATE_DISABLED) &&
- (entryPtr->disabledBorder != NULL)) {
- border = entryPtr->disabledBorder;
- } else if ((entryPtr->state == STATE_READONLY) &&
- (entryPtr->readonlyBorder != NULL)) {
- border = entryPtr->readonlyBorder;
- } else {
- border = entryPtr->normalBorder;
- }
- Tk_SetBackgroundFromBorder(entryPtr->tkwin, border);
-
- if (entryPtr->insertWidth <= 0) {
- entryPtr->insertWidth = 2;
- }
- if (entryPtr->insertBorderWidth > entryPtr->insertWidth/2) {
- entryPtr->insertBorderWidth = entryPtr->insertWidth/2;
- }
-
- if (entryPtr->type == TK_SPINBOX) {
- if (sbPtr->fromValue > sbPtr->toValue) {
- Tcl_SetObjResult(interp, Tcl_NewStringObj(
- "-to value must be greater than -from value",
- -1));
- Tcl_SetErrorCode(interp, "TK", "SPINBOX", "RANGE_SANITY",
- NULL);
- continue;
- }
-
- if (sbPtr->reqFormat && (oldFormat != sbPtr->reqFormat)) {
- /*
- * Make sure that the given format is somewhat correct, and
- * calculate the minimum space we'll need for the values as
- * strings.
- */
-
- int min, max;
- size_t formatLen, formatSpace = TCL_DOUBLE_SPACE;
- char fbuf[4], *fmt = sbPtr->reqFormat;
-
- formatLen = strlen(fmt);
- if ((fmt[0] != '%') || (fmt[formatLen-1] != 'f')) {
- badFormatOpt:
- Tcl_SetObjResult(interp, Tcl_ObjPrintf(
- "bad spinbox format specifier \"%s\"",
- sbPtr->reqFormat));
- Tcl_SetErrorCode(interp, "TK", "SPINBOX", "FORMAT_SANITY",
- NULL);
- continue;
- }
- if ((sscanf(fmt, "%%%d.%d%[f]", &min, &max, fbuf) == 3)
- && (max >= 0)) {
- formatSpace = min + max + 1;
- } else if (((sscanf(fmt, "%%.%d%[f]", &min, fbuf) == 2)
- || (sscanf(fmt, "%%%d%[f]", &min, fbuf) == 2)
- || (sscanf(fmt, "%%%d.%[f]", &min, fbuf) == 2))
- && (min >= 0)) {
- formatSpace = min + 1;
- } else {
- goto badFormatOpt;
- }
- if (formatSpace < TCL_DOUBLE_SPACE) {
- formatSpace = TCL_DOUBLE_SPACE;
- }
- sbPtr->formatBuf = ckrealloc(sbPtr->formatBuf, formatSpace);
-
- /*
- * We perturb the value of oldFrom to allow us to go into the
- * branch below that will reformat the displayed value.
- */
-
- oldFrom = sbPtr->fromValue - 1;
- }
-
- /*
- * See if we have to rearrange our listObj data.
- */
-
- if (oldValues != sbPtr->valueStr) {
- if (sbPtr->listObj != NULL) {
- Tcl_DecrRefCount(sbPtr->listObj);
- }
- sbPtr->listObj = NULL;
- if (sbPtr->valueStr != NULL) {
- Tcl_Obj *newObjPtr;
- int nelems;
-
- newObjPtr = Tcl_NewStringObj(sbPtr->valueStr, -1);
- if (Tcl_ListObjLength(interp, newObjPtr, &nelems)
- != TCL_OK) {
- valuesChanged = -1;
- continue;
- }
- sbPtr->listObj = newObjPtr;
- Tcl_IncrRefCount(sbPtr->listObj);
- sbPtr->nElements = nelems;
- sbPtr->eIndex = 0;
- valuesChanged++;
- }
- }
- }
-
- /*
- * Restart the cursor timing sequence in case the on-time or off-time
- * just changed. Set validate temporarily to none, so the configure
- * doesn't cause it to be triggered.
- */
-
- if (entryPtr->flags & GOT_FOCUS) {
- int validate = entryPtr->validate;
-
- entryPtr->validate = VALIDATE_NONE;
- EntryFocusProc(entryPtr, 1);
- entryPtr->validate = validate;
- }
-
- /*
- * Claim the selection if we've suddenly started exporting it.
- */
-
- if (entryPtr->exportSelection && (!oldExport)
- && (!Tcl_IsSafe(entryPtr->interp))
- && (entryPtr->selectFirst != -1)
- && !(entryPtr->flags & GOT_SELECTION)) {
- Tk_OwnSelection(entryPtr->tkwin, XA_PRIMARY, EntryLostSelection,
- entryPtr);
- entryPtr->flags |= GOT_SELECTION;
- }
-
- /*
- * Recompute the window's geometry and arrange for it to be
- * redisplayed.
- */
-
- Tk_SetInternalBorder(entryPtr->tkwin,
- entryPtr->borderWidth + entryPtr->highlightWidth);
- if (entryPtr->highlightWidth <= 0) {
- entryPtr->highlightWidth = 0;
- }
- entryPtr->inset = entryPtr->highlightWidth
- + entryPtr->borderWidth + XPAD;
- break;
- }
- if (!error) {
- Tk_FreeSavedOptions(&savedOptions);
- }
-
- /*
- * If the entry is tied to the value of a variable, create the variable if
- * it doesn't exist, and set the entry's value from the variable's value.
- */
-
- if (entryPtr->textVarName != NULL) {
- const char *value;
-
- value = Tcl_GetVar2(interp, entryPtr->textVarName, NULL, TCL_GLOBAL_ONLY);
- if (value == NULL) {
-
- /*
- * Since any trace on the textvariable was eliminated above,
- * the only possible reason for EntryValueChanged to return
- * an error is that the textvariable lives in a namespace
- * that does not (yet) exist. Indeed, namespaces are not
- * automatically created as needed. Don't trap this error
- * here, better do it below when attempting to trace the
- * variable.
- */
-
- EntryValueChanged(entryPtr, NULL);
- } else {
- EntrySetValue(entryPtr, value);
- }
- }
-
- if (entryPtr->type == TK_SPINBOX) {
- ComputeFormat(sbPtr);
-
- if (valuesChanged > 0) {
- Tcl_Obj *objPtr;
-
- /*
- * No check for error return, because there shouldn't be one given
- * the check for valid list above.
- */
-
- Tcl_ListObjIndex(interp, sbPtr->listObj, 0, &objPtr);
-
- /*
- * No check for error return here as well, because any possible
- * error will be trapped below when attempting tracing.
- */
-
- EntryValueChanged(entryPtr, Tcl_GetString(objPtr));
- } else if ((sbPtr->valueStr == NULL)
- && !DOUBLES_EQ(sbPtr->fromValue, sbPtr->toValue)
- && (!DOUBLES_EQ(sbPtr->fromValue, oldFrom)
- || !DOUBLES_EQ(sbPtr->toValue, oldTo))) {
- /*
- * If the valueStr is empty and -from && -to are specified, check
- * to see if the current string is within the range. If not, it
- * will be constrained to the nearest edge. If the current string
- * isn't a double value, we set it to -from.
- */
-
- double dvalue;
-
- if (sscanf(entryPtr->string, "%lf", &dvalue) <= 0) {
- /* Scan failure */
- dvalue = sbPtr->fromValue;
- } else if (dvalue > sbPtr->toValue) {
- dvalue = sbPtr->toValue;
- } else if (dvalue < sbPtr->fromValue) {
- dvalue = sbPtr->fromValue;
- }
- sprintf(sbPtr->formatBuf, sbPtr->valueFormat, dvalue);
-
- /*
- * No check for error return here as well, because any possible
- * error will be trapped below when attempting tracing.
- */
-
- EntryValueChanged(entryPtr, sbPtr->formatBuf);
- }
- }
-
- /*
- * Set up a trace on the variable's value after we've possibly constrained
- * the value according to new -from/-to values.
- */
-
- if ((entryPtr->textVarName != NULL)
- && !(entryPtr->flags & ENTRY_VAR_TRACED)) {
- code = Tcl_TraceVar2(interp, entryPtr->textVarName,
- NULL, TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
- EntryTextVarProc, entryPtr);
- if (code != TCL_OK) {
- return TCL_ERROR;
- }
- entryPtr->flags |= ENTRY_VAR_TRACED;
- }
-
- EntryWorldChanged(entryPtr);
- if (error) {
- Tcl_SetObjResult(interp, errorResult);
- Tcl_DecrRefCount(errorResult);
- return TCL_ERROR;
- } else {
- return TCL_OK;
- }
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * EntryWorldChanged --
- *
- * This function is called when the world has changed in some way and the
- * widget needs to recompute all its graphics contexts and determine its
- * new geometry.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Entry will be relayed out and redisplayed.
- *
- *---------------------------------------------------------------------------
- */
-
-static void
-EntryWorldChanged(
- ClientData instanceData) /* Information about widget. */
-{
- XGCValues gcValues;
- GC gc = None;
- unsigned long mask;
- Tk_3DBorder border;
- XColor *colorPtr;
- Entry *entryPtr = instanceData;
-
- entryPtr->avgWidth = Tk_TextWidth(entryPtr->tkfont, "0", 1);
- if (entryPtr->avgWidth == 0) {
- entryPtr->avgWidth = 1;
- }
-
- if (entryPtr->type == TK_SPINBOX) {
- /*
- * Compute the button width for a spinbox
- */
-
- entryPtr->xWidth = entryPtr->avgWidth + 2 * (1+XPAD);
- if (entryPtr->xWidth < 11) {
- entryPtr->xWidth = 11; /* we want a min visible size */
- }
- }
-
- /*
- * Default background and foreground are from the normal state. In a
- * disabled state, both of those may be overridden; in the readonly state,
- * the background may be overridden.
- */
-
- border = entryPtr->normalBorder;
- colorPtr = entryPtr->fgColorPtr;
- switch (entryPtr->state) {
- case STATE_DISABLED:
- if (entryPtr->disabledBorder != NULL) {
- border = entryPtr->disabledBorder;
- }
- if (entryPtr->dfgColorPtr != NULL) {
- colorPtr = entryPtr->dfgColorPtr;
- }
- break;
- case STATE_READONLY:
- if (entryPtr->readonlyBorder != NULL) {
- border = entryPtr->readonlyBorder;
- }
- break;
- }
-
- Tk_SetBackgroundFromBorder(entryPtr->tkwin, border);
- gcValues.foreground = colorPtr->pixel;
- gcValues.font = Tk_FontId(entryPtr->tkfont);
- gcValues.graphics_exposures = False;
- mask = GCForeground | GCFont | GCGraphicsExposures;
- gc = Tk_GetGC(entryPtr->tkwin, mask, &gcValues);
- if (entryPtr->textGC != None) {
- Tk_FreeGC(entryPtr->display, entryPtr->textGC);
- }
- entryPtr->textGC = gc;
-
- if (entryPtr->selFgColorPtr != NULL) {
- gcValues.foreground = entryPtr->selFgColorPtr->pixel;
- }
- gcValues.font = Tk_FontId(entryPtr->tkfont);
- mask = GCForeground | GCFont;
- gc = Tk_GetGC(entryPtr->tkwin, mask, &gcValues);
- if (entryPtr->selTextGC != None) {
- Tk_FreeGC(entryPtr->display, entryPtr->selTextGC);
- }
- entryPtr->selTextGC = gc;
-
- /*
- * Recompute the window's geometry and arrange for it to be redisplayed.
- */
-
- EntryComputeGeometry(entryPtr);
- entryPtr->flags |= UPDATE_SCROLLBAR;
- EventuallyRedraw(entryPtr);
-}
-
-#ifndef MAC_OSX_TK
-/*
- *--------------------------------------------------------------
- *
- * TkpDrawEntryBorderAndFocus --
- *
- * This function redraws the border of an entry widget. It overrides the
- * generic border drawing code if the entry widget parameters are such
- * that the native widget drawing is a good fit. This version just
- * returns 0, so platforms that don't do special native drawing don't
- * have to implement it.
- *
- * Results:
- * 1 if it has drawn the border, 0 if not.
- *
- * Side effects:
- * May draw the entry border into pixmap.
- *
- *--------------------------------------------------------------
- */
-
-int
-TkpDrawEntryBorderAndFocus(
- Entry *entryPtr,
- Drawable pixmap,
- int isSpinbox)
-{
- return 0;
-}
-
-/*
- *--------------------------------------------------------------
- *
- * TkpDrawSpinboxButtons --
- *
- * This function redraws the buttons of an spinbox widget. It overrides
- * the generic button drawing code if the spinbox widget parameters are
- * such that the native widget drawing is a good fit. This version just
- * returns 0, so platforms that don't do special native drawing don't
- * have to implement it.
- *
- * Results:
- * 1 if it has drawn the border, 0 if not.
- *
- * Side effects:
- * May draw the entry border into pixmap.
- *
- *--------------------------------------------------------------
- */
-
-int
-TkpDrawSpinboxButtons(
- Spinbox *sbPtr,
- Pixmap pixmap)
-{
- return 0;
-}
-#endif /* Not MAC_OSX_TK */
-
-/*
- *--------------------------------------------------------------
- *
- * DisplayEntry --
- *
- * This function redraws the contents of an entry window.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Information appears on the screen.
- *
- *--------------------------------------------------------------
- */
-
-static void
-DisplayEntry(
- ClientData clientData) /* Information about window. */
-{
- Entry *entryPtr = clientData;
- Tk_Window tkwin = entryPtr->tkwin;
- int baseY, selStartX, selEndX, cursorX;
- int showSelection, xBound;
- Tk_FontMetrics fm;
- Pixmap pixmap;
- Tk_3DBorder border;
-
- entryPtr->flags &= ~REDRAW_PENDING;
- if ((entryPtr->flags & ENTRY_DELETED) || !Tk_IsMapped(tkwin)) {
- return;
- }
-
- Tk_GetFontMetrics(entryPtr->tkfont, &fm);
-
- /*
- * Update the scrollbar if that's needed.
- */
-
- if (entryPtr->flags & UPDATE_SCROLLBAR) {
- entryPtr->flags &= ~UPDATE_SCROLLBAR;
-
- /*
- * Preserve/Release because updating the scrollbar can have the
- * side-effect of destroying or unmapping the entry widget.
- */
-
- Tcl_Preserve(entryPtr);
- EntryUpdateScrollbar(entryPtr);
-
- if ((entryPtr->flags & ENTRY_DELETED) || !Tk_IsMapped(tkwin)) {
- Tcl_Release(entryPtr);
- return;
- }
- Tcl_Release(entryPtr);
- }
-
-#ifndef TK_NO_DOUBLE_BUFFERING
- /*
- * In order to avoid screen flashes, this function redraws the textual
- * area of the entry into off-screen memory, then copies it back on-screen
- * in a single operation. This means there's no point in time where the
- * on-screen image has been cleared.
- */
-
- pixmap = Tk_GetPixmap(entryPtr->display, Tk_WindowId(tkwin),
- Tk_Width(tkwin), Tk_Height(tkwin), Tk_Depth(tkwin));
-#else
- pixmap = Tk_WindowId(tkwin);
-#endif /* TK_NO_DOUBLE_BUFFERING */
-
- /*
- * Compute x-coordinate of the pixel just after last visible one, plus
- * vertical position of baseline of text.
- */
-
- xBound = Tk_Width(tkwin) - entryPtr->inset - entryPtr->xWidth;
- baseY = (Tk_Height(tkwin) + fm.ascent - fm.descent) / 2;
-
- /*
- * Hide the selection whenever we don't have the focus, unless we
- * always want to show selection.
- */
- if (TkpAlwaysShowSelection(entryPtr->tkwin)) {
- showSelection = 1;
- } else {
- showSelection = (entryPtr->flags & GOT_FOCUS);
- }
-
- /*
- * Draw the background in three layers. From bottom to top the layers are:
- * normal background, selection background, and insertion cursor
- * background.
- */
-
- if ((entryPtr->state == STATE_DISABLED) &&
- (entryPtr->disabledBorder != NULL)) {
- border = entryPtr->disabledBorder;
- } else if ((entryPtr->state == STATE_READONLY) &&
- (entryPtr->readonlyBorder != NULL)) {
- border = entryPtr->readonlyBorder;
- } else {
- border = entryPtr->normalBorder;
- }
- Tk_Fill3DRectangle(tkwin, pixmap, border,
- 0, 0, Tk_Width(tkwin), Tk_Height(tkwin), 0, TK_RELIEF_FLAT);
-
- if (showSelection && (entryPtr->state != STATE_DISABLED)
- && (entryPtr->selectLast > entryPtr->leftIndex)) {
- if (entryPtr->selectFirst <= entryPtr->leftIndex) {
- selStartX = entryPtr->leftX;
- } else {
- Tk_CharBbox(entryPtr->textLayout, entryPtr->selectFirst,
- &selStartX, NULL, NULL, NULL);
- selStartX += entryPtr->layoutX;
- }
- if ((selStartX - entryPtr->selBorderWidth) < xBound) {
- Tk_CharBbox(entryPtr->textLayout, entryPtr->selectLast,
- &selEndX, NULL, NULL, NULL);
- selEndX += entryPtr->layoutX;
- Tk_Fill3DRectangle(tkwin, pixmap, entryPtr->selBorder,
- selStartX - entryPtr->selBorderWidth,
- baseY - fm.ascent - entryPtr->selBorderWidth,
- (selEndX - selStartX) + 2*entryPtr->selBorderWidth,
- (fm.ascent + fm.descent) + 2*entryPtr->selBorderWidth,
- entryPtr->selBorderWidth,
-#ifndef MAC_OSX_TK
- TK_RELIEF_RAISED
-#else
- MAC_OSX_ENTRY_SELECT_RELIEF
-#endif
- );
- }
- }
-
- /*
- * Draw a special background for the insertion cursor, overriding even the
- * selection background. As a special hack to keep the cursor visible when
- * the insertion cursor color is the same as the color for selected text
- * (e.g., on mono displays), write background in the cursor area (instead
- * of nothing) when the cursor isn't on. Otherwise the selection would
- * hide the cursor.
- */
-
- if ((entryPtr->state == STATE_NORMAL) && (entryPtr->flags & GOT_FOCUS)) {
- Tk_CharBbox(entryPtr->textLayout, entryPtr->insertPos, &cursorX, NULL,
- NULL, NULL);
- cursorX += entryPtr->layoutX;
- cursorX -= (entryPtr->insertWidth == 1) ? 1 : (entryPtr->insertWidth)/2;
- Tk_SetCaretPos(entryPtr->tkwin, cursorX, baseY - fm.ascent,
- fm.ascent + fm.descent);
- if (entryPtr->insertPos >= entryPtr->leftIndex && cursorX < xBound) {
- if (entryPtr->flags & CURSOR_ON) {
- Tk_Fill3DRectangle(tkwin, pixmap, entryPtr->insertBorder,
- cursorX, baseY - fm.ascent, entryPtr->insertWidth,
- fm.ascent + fm.descent, entryPtr->insertBorderWidth,
- TK_RELIEF_RAISED);
- } else if (entryPtr->insertBorder == entryPtr->selBorder) {
- Tk_Fill3DRectangle(tkwin, pixmap, border, cursorX,
- baseY - fm.ascent, entryPtr->insertWidth,
- fm.ascent + fm.descent, 0, TK_RELIEF_FLAT);
- }
- }
- }
-
- /*
- * Draw the text in two pieces: first the unselected portion, then the
- * selected portion on top of it.
- */
-
- Tk_DrawTextLayout(entryPtr->display, pixmap, entryPtr->textGC,
- entryPtr->textLayout, entryPtr->layoutX, entryPtr->layoutY,
- entryPtr->leftIndex, entryPtr->numChars);
-
- if (showSelection && (entryPtr->state != STATE_DISABLED)
- && (entryPtr->selTextGC != entryPtr->textGC)
- && (entryPtr->selectFirst < entryPtr->selectLast)) {
- int selFirst;
-
- if (entryPtr->selectFirst < entryPtr->leftIndex) {
- selFirst = entryPtr->leftIndex;
- } else {
- selFirst = entryPtr->selectFirst;
- }
- Tk_DrawTextLayout(entryPtr->display, pixmap, entryPtr->selTextGC,
- entryPtr->textLayout, entryPtr->layoutX, entryPtr->layoutY,
- selFirst, entryPtr->selectLast);
- }
-
- if (entryPtr->type == TK_SPINBOX) {
- int startx, height, inset, pad, tHeight, xWidth;
- Spinbox *sbPtr = (Spinbox *) entryPtr;
-
- /*
- * Draw the spin button controls.
- */
-
- if (TkpDrawSpinboxButtons(sbPtr, pixmap) == 0) {
- xWidth = entryPtr->xWidth;
- pad = XPAD + 1;
- inset = entryPtr->inset - XPAD;
- startx = Tk_Width(tkwin) - (xWidth + inset);
- height = (Tk_Height(tkwin) - 2*inset)/2;
-#if 0
- Tk_Fill3DRectangle(tkwin, pixmap, sbPtr->buttonBorder,
- startx, inset, xWidth, height, 1, sbPtr->buRelief);
- Tk_Fill3DRectangle(tkwin, pixmap, sbPtr->buttonBorder,
- startx, inset+height, xWidth, height, 1, sbPtr->bdRelief);
-#else
- Tk_Fill3DRectangle(tkwin, pixmap, sbPtr->buttonBorder,
- startx, inset, xWidth, height, 1,
- (sbPtr->selElement == SEL_BUTTONUP) ?
- TK_RELIEF_SUNKEN : TK_RELIEF_RAISED);
- Tk_Fill3DRectangle(tkwin, pixmap, sbPtr->buttonBorder,
- startx, inset+height, xWidth, height, 1,
- (sbPtr->selElement == SEL_BUTTONDOWN) ?
- TK_RELIEF_SUNKEN : TK_RELIEF_RAISED);
-#endif
-
- xWidth -= 2*pad;
-
- /*
- * Only draw the triangles if we have enough display space
- */
-
- if ((xWidth > 1)) {
- XPoint points[3];
- int starty, space, offset;
-
- space = height - 2*pad;
-
- /*
- * Ensure width of triangle is odd to guarantee a sharp tip
- */
-
- if (!(xWidth % 2)) {
- xWidth++;
- }
- tHeight = (xWidth + 1) / 2;
- if (tHeight > space) {
- tHeight = space;
- }
- space = (space - tHeight) / 2;
- startx += pad;
- starty = inset + height - pad - space;
- offset = (sbPtr->selElement == SEL_BUTTONUP);
-
- /*
- * The points are slightly different for the up and down
- * arrows because (for *.x), we need to account for a bug in
- * the way XFillPolygon draws triangles, and we want to shift
- * the arrows differently when allowing for depressed
- * behavior.
- */
-
- points[0].x = startx + offset;
- points[0].y = starty + (offset ? 0 : -1);
- points[1].x = startx + xWidth/2 + offset;
- points[1].y = starty - tHeight + (offset ? 0 : -1);
- points[2].x = startx + xWidth + offset;
- points[2].y = points[0].y;
- XFillPolygon(entryPtr->display, pixmap, entryPtr->textGC,
- points, 3, Convex, CoordModeOrigin);
-
- starty = inset + height + pad + space;
- offset = (sbPtr->selElement == SEL_BUTTONDOWN);
- points[0].x = startx + 1 + offset;
- points[0].y = starty + (offset ? 1 : 0);
- points[1].x = startx + xWidth/2 + offset;
- points[1].y = starty + tHeight + (offset ? 0 : -1);
- points[2].x = startx - 1 + xWidth + offset;
- points[2].y = points[0].y;
- XFillPolygon(entryPtr->display, pixmap, entryPtr->textGC,
- points, 3, Convex, CoordModeOrigin);
- }
- }
- }
-
- /*
- * Draw the border and focus highlight last, so they will overwrite any
- * text that extends past the viewable part of the window.
- */
-
- if (!TkpDrawEntryBorderAndFocus(entryPtr, pixmap,
- (entryPtr->type == TK_SPINBOX))) {
- xBound = entryPtr->highlightWidth;
- if (entryPtr->relief != TK_RELIEF_FLAT) {
- Tk_Draw3DRectangle(tkwin, pixmap, border, xBound, xBound,
- Tk_Width(tkwin) - 2 * xBound,
- Tk_Height(tkwin) - 2 * xBound,
- entryPtr->borderWidth, entryPtr->relief);
- }
- if (xBound > 0) {
- GC fgGC, bgGC;
-
- bgGC = Tk_GCForColor(entryPtr->highlightBgColorPtr, pixmap);
- if (entryPtr->flags & GOT_FOCUS) {
- fgGC = Tk_GCForColor(entryPtr->highlightColorPtr, pixmap);
- TkpDrawHighlightBorder(tkwin, fgGC, bgGC, xBound, pixmap);
- } else {
- TkpDrawHighlightBorder(tkwin, bgGC, bgGC, xBound, pixmap);
- }
- }
- }
-
-#ifndef TK_NO_DOUBLE_BUFFERING
- /*
- * Everything's been redisplayed; now copy the pixmap onto the screen and
- * free up the pixmap.
- */
-
- XCopyArea(entryPtr->display, pixmap, Tk_WindowId(tkwin), entryPtr->textGC,
- 0, 0, (unsigned) Tk_Width(tkwin), (unsigned) Tk_Height(tkwin),
- 0, 0);
- Tk_FreePixmap(entryPtr->display, pixmap);
-#endif /* TK_NO_DOUBLE_BUFFERING */
- entryPtr->flags &= ~BORDER_NEEDED;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EntryComputeGeometry --
- *
- * This function is invoked to recompute information about where in its
- * window an entry's string will be displayed. It also computes the
- * requested size for the window.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The leftX and tabOrigin fields are recomputed for entryPtr, and
- * leftIndex may be adjusted. Tk_GeometryRequest is called to register
- * the desired dimensions for the window.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EntryComputeGeometry(
- Entry *entryPtr) /* Widget record for entry. */
-{
- int totalLength, overflow, maxOffScreen, rightX;
- int height, width, i;
- Tk_FontMetrics fm;
- char *p;
-
- if (entryPtr->displayString != entryPtr->string) {
- ckfree((char *)entryPtr->displayString);
- entryPtr->displayString = entryPtr->string;
- entryPtr->numDisplayBytes = entryPtr->numBytes;
- }
-
- /*
- * If we're displaying a special character instead of the value of the
- * entry, recompute the displayString.
- */
-
- if (entryPtr->showChar != NULL) {
- int ch;
- char buf[6];
- int size;
-
- /*
- * Normalize the special character so we can safely duplicate it in
- * the display string. If we didn't do this, then two malformed
- * characters might end up looking like one valid UTF character in the
- * resulting string.
- */
-
- TkUtfToUniChar(entryPtr->showChar, &ch);
- size = TkUniCharToUtf(ch, buf);
-
- entryPtr->numDisplayBytes = entryPtr->numChars * size;
- p = ckalloc(entryPtr->numDisplayBytes + 1);
- entryPtr->displayString = p;
-
- for (i = entryPtr->numChars; --i >= 0; ) {
- memcpy(p, buf, size);
- p += size;
- }
- *p = '\0';
- }
-
- Tk_FreeTextLayout(entryPtr->textLayout);
- entryPtr->textLayout = Tk_ComputeTextLayout(entryPtr->tkfont,
- entryPtr->displayString, entryPtr->numChars, 0,
- entryPtr->justify, TK_IGNORE_NEWLINES, &totalLength, &height);
-
- entryPtr->layoutY = (Tk_Height(entryPtr->tkwin) - height) / 2;
-
- /*
- * Recompute where the leftmost character on the display will be drawn
- * (entryPtr->leftX) and adjust leftIndex if necessary so that we don't
- * let characters hang off the edge of the window unless the entire window
- * is full.
- */
-
- overflow = totalLength -
- (Tk_Width(entryPtr->tkwin) - 2*entryPtr->inset - entryPtr->xWidth);
- if (overflow <= 0) {
- entryPtr->leftIndex = 0;
- if (entryPtr->justify == TK_JUSTIFY_LEFT) {
- entryPtr->leftX = entryPtr->inset;
- } else if (entryPtr->justify == TK_JUSTIFY_RIGHT) {
- entryPtr->leftX = Tk_Width(entryPtr->tkwin) - entryPtr->inset
- - entryPtr->xWidth - totalLength;
- } else {
- entryPtr->leftX = (Tk_Width(entryPtr->tkwin)
- - entryPtr->xWidth - totalLength)/2;
- }
- entryPtr->layoutX = entryPtr->leftX;
- } else {
- /*
- * The whole string can't fit in the window. Compute the maximum
- * number of characters that may be off-screen to the left without
- * leaving empty space on the right of the window, then don't let
- * leftIndex be any greater than that.
- */
-
- maxOffScreen = Tk_PointToChar(entryPtr->textLayout, overflow, 0);
- Tk_CharBbox(entryPtr->textLayout, maxOffScreen,
- &rightX, NULL, NULL, NULL);
- if (rightX < overflow) {
- maxOffScreen++;
- }
- if (entryPtr->leftIndex > maxOffScreen) {
- entryPtr->leftIndex = maxOffScreen;
- }
- Tk_CharBbox(entryPtr->textLayout, entryPtr->leftIndex, &rightX,
- NULL, NULL, NULL);
- entryPtr->leftX = entryPtr->inset;
- entryPtr->layoutX = entryPtr->leftX - rightX;
- }
-
- Tk_GetFontMetrics(entryPtr->tkfont, &fm);
- height = fm.linespace + 2*entryPtr->inset + 2*(YPAD-XPAD);
- if (entryPtr->prefWidth > 0) {
- width = entryPtr->prefWidth*entryPtr->avgWidth + 2*entryPtr->inset;
- } else if (totalLength == 0) {
- width = entryPtr->avgWidth + 2*entryPtr->inset;
- } else {
- width = totalLength + 2*entryPtr->inset;
- }
-
- /*
- * Add one extra length for the spin buttons
- */
- width += entryPtr->xWidth;
-
- Tk_GeometryRequest(entryPtr->tkwin, width, height);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * InsertChars --
- *
- * Add new characters to an entry widget.
- *
- * Results:
- * A standard Tcl result. If an error occurred then an error message is
- * left in the interp's result.
- *
- * Side effects:
- * New information gets added to entryPtr; it will be redisplayed soon,
- * but not necessarily immediately.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-InsertChars(
- Entry *entryPtr, /* Entry that is to get the new elements. */
- int index, /* Add the new elements before this character
- * index. */
- const char *value) /* New characters to add (NULL-terminated
- * string). */
-{
- ptrdiff_t byteIndex;
- size_t byteCount, newByteCount;
- int oldChars, charsAdded;
- const char *string;
- char *newStr;
-
- string = entryPtr->string;
- byteIndex = Tcl_UtfAtIndex(string, index) - string;
- byteCount = strlen(value);
- if (byteCount == 0) {
- return TCL_OK;
- }
-
- newByteCount = entryPtr->numBytes + byteCount + 1;
- newStr = ckalloc(newByteCount);
- memcpy(newStr, string, byteIndex);
- strcpy(newStr + byteIndex, value);
- strcpy(newStr + byteIndex + byteCount, string + byteIndex);
-
- if ((entryPtr->validate == VALIDATE_KEY ||
- entryPtr->validate == VALIDATE_ALL) &&
- EntryValidateChange(entryPtr, value, newStr, index,
- VALIDATE_INSERT) != TCL_OK) {
- ckfree(newStr);
- return TCL_OK;
- }
-
- ckfree((char *)string);
- entryPtr->string = newStr;
-
- /*
- * The following construction is used because inserting improperly formed
- * UTF-8 sequences between other improperly formed UTF-8 sequences could
- * result in actually forming valid UTF-8 sequences; the number of
- * characters added may not be Tcl_NumUtfChars(string, -1), because of
- * context. The actual number of characters added is how many characters
- * are in the string now minus the number that used to be there.
- */
-
- oldChars = entryPtr->numChars;
- entryPtr->numChars = Tcl_NumUtfChars(newStr, -1);
- charsAdded = entryPtr->numChars - oldChars;
- entryPtr->numBytes += byteCount;
-
- if (entryPtr->displayString == string) {
- entryPtr->displayString = newStr;
- entryPtr->numDisplayBytes = entryPtr->numBytes;
- }
-
- /*
- * Inserting characters invalidates all indexes into the string. Touch up
- * the indexes so that they still refer to the same characters (at new
- * positions). When updating the selection end-points, don't include the
- * new text in the selection unless it was completely surrounded by the
- * selection.
- */
-
- if (entryPtr->selectFirst >= index) {
- entryPtr->selectFirst += charsAdded;
- }
- if (entryPtr->selectLast > index) {
- entryPtr->selectLast += charsAdded;
- }
- if ((entryPtr->selectAnchor > index) || (entryPtr->selectFirst >= index)) {
- entryPtr->selectAnchor += charsAdded;
- }
- if (entryPtr->leftIndex > index) {
- entryPtr->leftIndex += charsAdded;
- }
- if (entryPtr->insertPos >= index) {
- entryPtr->insertPos += charsAdded;
- }
- return EntryValueChanged(entryPtr, NULL);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * DeleteChars --
- *
- * Remove one or more characters from an entry widget.
- *
- * Results:
- * A standard Tcl result. If an error occurred then an error message is
- * left in the interp's result.
- *
- * Side effects:
- * Memory gets freed, the entry gets modified and (eventually)
- * redisplayed.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-DeleteChars(
- Entry *entryPtr, /* Entry widget to modify. */
- int index, /* Index of first character to delete. */
- int count) /* How many characters to delete. */
-{
- int byteIndex, byteCount, newByteCount;
- const char *string;
- char *newStr, *toDelete;
-
- if ((index + count) > entryPtr->numChars) {
- count = entryPtr->numChars - index;
- }
- if (count <= 0) {
- return TCL_OK;
- }
-
- string = entryPtr->string;
- byteIndex = Tcl_UtfAtIndex(string, index) - string;
- byteCount = Tcl_UtfAtIndex(string + byteIndex, count) - (string+byteIndex);
-
- newByteCount = entryPtr->numBytes + 1 - byteCount;
- newStr = ckalloc(newByteCount);
- memcpy(newStr, string, (size_t) byteIndex);
- strcpy(newStr + byteIndex, string + byteIndex + byteCount);
-
- toDelete = ckalloc(byteCount + 1);
- memcpy(toDelete, string + byteIndex, (size_t) byteCount);
- toDelete[byteCount] = '\0';
-
- if ((entryPtr->validate == VALIDATE_KEY ||
- entryPtr->validate == VALIDATE_ALL) &&
- EntryValidateChange(entryPtr, toDelete, newStr, index,
- VALIDATE_DELETE) != TCL_OK) {
- ckfree(newStr);
- ckfree(toDelete);
- return TCL_OK;
- }
-
- ckfree(toDelete);
- ckfree((char *)entryPtr->string);
- entryPtr->string = newStr;
- entryPtr->numChars -= count;
- entryPtr->numBytes -= byteCount;
-
- if (entryPtr->displayString == string) {
- entryPtr->displayString = newStr;
- entryPtr->numDisplayBytes = entryPtr->numBytes;
- }
-
- /*
- * Deleting characters results in the remaining characters being
- * renumbered. Update the various indexes into the string to reflect this
- * change.
- */
-
- if (entryPtr->selectFirst >= index) {
- if (entryPtr->selectFirst >= (index + count)) {
- entryPtr->selectFirst -= count;
- } else {
- entryPtr->selectFirst = index;
- }
- }
- if (entryPtr->selectLast >= index) {
- if (entryPtr->selectLast >= (index + count)) {
- entryPtr->selectLast -= count;
- } else {
- entryPtr->selectLast = index;
- }
- }
- if (entryPtr->selectLast <= entryPtr->selectFirst) {
- entryPtr->selectFirst = -1;
- entryPtr->selectLast = -1;
- }
- if (entryPtr->selectAnchor >= index) {
- if (entryPtr->selectAnchor >= (index+count)) {
- entryPtr->selectAnchor -= count;
- } else {
- entryPtr->selectAnchor = index;
- }
- }
- if (entryPtr->leftIndex > index) {
- if (entryPtr->leftIndex >= (index + count)) {
- entryPtr->leftIndex -= count;
- } else {
- entryPtr->leftIndex = index;
- }
- }
- if (entryPtr->insertPos >= index) {
- if (entryPtr->insertPos >= (index + count)) {
- entryPtr->insertPos -= count;
- } else {
- entryPtr->insertPos = index;
- }
- }
- return EntryValueChanged(entryPtr, NULL);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EntryValueChanged --
- *
- * This function is invoked when characters are inserted into an entry or
- * deleted from it. It updates the entry's associated variable, if there
- * is one, and does other bookkeeping such as arranging for redisplay.
- *
- * Results:
- * A standard Tcl result. If an error occurred then an error message is
- * left in the interp's result.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-EntryValueChanged(
- Entry *entryPtr, /* Entry whose value just changed. */
- const char *newValue) /* If this value is not NULL, we first force
- * the value of the entry to this. */
-{
- if (newValue != NULL) {
- EntrySetValue(entryPtr, newValue);
- }
-
- if (entryPtr->textVarName == NULL) {
- newValue = NULL;
- } else {
- newValue = Tcl_SetVar2(entryPtr->interp, entryPtr->textVarName,
- NULL, entryPtr->string, TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG);
- }
-
- if ((newValue != NULL) && (strcmp(newValue, entryPtr->string) != 0)) {
- /*
- * The value of the variable is different than what we asked for.
- * This means that a trace on the variable modified it. In this case
- * our trace function wasn't invoked since the modification came while
- * a trace was already active on the variable. So, update our value to
- * reflect the variable's latest value.
- */
-
- EntrySetValue(entryPtr, newValue);
- } else {
- /*
- * Arrange for redisplay.
- */
-
- entryPtr->flags |= UPDATE_SCROLLBAR;
- EntryComputeGeometry(entryPtr);
- EventuallyRedraw(entryPtr);
- }
-
- /*
- * An error may have happened when setting the textvariable in case there
- * is a trace on that variable and the trace proc triggered an error.
- * Another possibility is that the textvariable is in a namespace that
- * does not (yet) exist.
- * Signal this error.
- */
-
- if ((entryPtr->textVarName != NULL) && (newValue == NULL)) {
- return TCL_ERROR;
- }
- return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EntrySetValue --
- *
- * Replace the contents of a text entry with a given value. This function
- * is invoked when updating the entry from the entry's associated
- * variable.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The string displayed in the entry will change. The selection,
- * insertion point, and view may have to be adjusted to keep them within
- * the bounds of the new string. Note: this function does *not* update
- * the entry's associated variable, since that could result in an
- * infinite loop.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EntrySetValue(
- Entry *entryPtr, /* Entry whose value is to be changed. */
- const char *value) /* New text to display in entry. */
-{
- const char *oldSource;
- int valueLen, malloced = 0;
-
- if (strcmp(value, entryPtr->string) == 0) {
- return;
- }
- valueLen = strlen(value);
-
- if (entryPtr->flags & VALIDATE_VAR) {
- entryPtr->flags |= VALIDATE_ABORT;
- } else {
- /*
- * If we validate, we create a copy of the value, as it may point to
- * volatile memory, like the value of the -textvar which may get freed
- * during validation
- */
-
- char *tmp = ckalloc(valueLen + 1);
-
- strcpy(tmp, value);
- value = tmp;
- malloced = 1;
-
- entryPtr->flags |= VALIDATE_VAR;
- (void) EntryValidateChange(entryPtr, NULL, value, -1,
- VALIDATE_FORCED);
- entryPtr->flags &= ~VALIDATE_VAR;
-
- /*
- * If VALIDATE_ABORT has been set, then this operation should be
- * aborted because the validatecommand did something else instead
- */
-
- if (entryPtr->flags & VALIDATE_ABORT) {
- entryPtr->flags &= ~VALIDATE_ABORT;
- ckfree((char *)value);
- return;
- }
- }
-
- oldSource = entryPtr->string;
- ckfree((char *)entryPtr->string);
-
- if (malloced) {
- entryPtr->string = value;
- } else {
- char *tmp = ckalloc(valueLen + 1);
-
- strcpy(tmp, value);
- entryPtr->string = tmp;
- }
- entryPtr->numBytes = valueLen;
- entryPtr->numChars = Tcl_NumUtfChars(value, valueLen);
-
- if (entryPtr->displayString == oldSource) {
- entryPtr->displayString = entryPtr->string;
- entryPtr->numDisplayBytes = entryPtr->numBytes;
- }
-
- if (entryPtr->selectFirst >= 0) {
- if (entryPtr->selectFirst >= entryPtr->numChars) {
- entryPtr->selectFirst = -1;
- entryPtr->selectLast = -1;
- } else if (entryPtr->selectLast > entryPtr->numChars) {
- entryPtr->selectLast = entryPtr->numChars;
- }
- }
- if (entryPtr->leftIndex >= entryPtr->numChars) {
- if (entryPtr->numChars > 0) {
- entryPtr->leftIndex = entryPtr->numChars - 1;
- } else {
- entryPtr->leftIndex = 0;
- }
- }
- if (entryPtr->insertPos > entryPtr->numChars) {
- entryPtr->insertPos = entryPtr->numChars;
- }
-
- entryPtr->flags |= UPDATE_SCROLLBAR;
- EntryComputeGeometry(entryPtr);
- EventuallyRedraw(entryPtr);
-}
-
-/*
- *--------------------------------------------------------------
- *
- * EntryEventProc --
- *
- * This function is invoked by the Tk dispatcher for various events on
- * entries.
- *
- * Results:
- * None.
- *
- * Side effects:
- * When the window gets deleted, internal structures get cleaned up.
- * When it gets exposed, it is redisplayed.
- *
- *--------------------------------------------------------------
- */
-
-static void
-EntryEventProc(
- ClientData clientData, /* Information about window. */
- XEvent *eventPtr) /* Information about event. */
-{
- Entry *entryPtr = clientData;
-
- if ((entryPtr->type == TK_SPINBOX) && (eventPtr->type == MotionNotify)) {
- Spinbox *sbPtr = clientData;
- int elem;
-
- elem = GetSpinboxElement(sbPtr, eventPtr->xmotion.x,
- eventPtr->xmotion.y);
- if (elem != sbPtr->curElement) {
- Tk_Cursor cursor;
-
- sbPtr->curElement = elem;
- if (elem == SEL_ENTRY) {
- cursor = entryPtr->cursor;
- } else if ((elem == SEL_BUTTONDOWN) || (elem == SEL_BUTTONUP)) {
- cursor = sbPtr->bCursor;
- } else {
- cursor = None;
- }
- if (cursor != None) {
- Tk_DefineCursor(entryPtr->tkwin, cursor);
- } else {
- Tk_UndefineCursor(entryPtr->tkwin);
- }
- }
- return;
- }
-
- switch (eventPtr->type) {
- case Expose:
- EventuallyRedraw(entryPtr);
- entryPtr->flags |= BORDER_NEEDED;
- break;
- case DestroyNotify:
- if (!(entryPtr->flags & ENTRY_DELETED)) {
- entryPtr->flags |= (ENTRY_DELETED | VALIDATE_ABORT);
- Tcl_DeleteCommandFromToken(entryPtr->interp, entryPtr->widgetCmd);
- if (entryPtr->flags & REDRAW_PENDING) {
- Tcl_CancelIdleCall(DisplayEntry, clientData);
- }
- Tcl_EventuallyFree(clientData, (Tcl_FreeProc *) DestroyEntry);
- }
- break;
- case ConfigureNotify:
- Tcl_Preserve(entryPtr);
- entryPtr->flags |= UPDATE_SCROLLBAR;
- EntryComputeGeometry(entryPtr);
- EventuallyRedraw(entryPtr);
- Tcl_Release(entryPtr);
- break;
- case FocusIn:
- case FocusOut:
- if (eventPtr->xfocus.detail != NotifyInferior) {
- EntryFocusProc(entryPtr, (eventPtr->type == FocusIn));
- }
- break;
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EntryCmdDeletedProc --
- *
- * This function is invoked when a widget command is deleted. If the
- * widget isn't already in the process of being destroyed, this command
- * destroys it.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The widget is destroyed.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EntryCmdDeletedProc(
- ClientData clientData) /* Pointer to widget record for widget. */
-{
- Entry *entryPtr = clientData;
-
- /*
- * This function could be invoked either because the window was destroyed
- * and the command was then deleted (in which case tkwin is NULL) or
- * because the command was deleted, and then this function destroys the
- * widget.
- */
-
- if (!(entryPtr->flags & ENTRY_DELETED)) {
- Tk_DestroyWindow(entryPtr->tkwin);
- }
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * GetEntryIndex --
- *
- * Parse an index into an entry and return either its value or an error.
- *
- * Results:
- * A standard Tcl result. If all went well, then *indexPtr is filled in
- * with the character index (into entryPtr) corresponding to string. The
- * index value is guaranteed to lie between 0 and the number of
- * characters in the string, inclusive. If an error occurs then an error
- * message is left in the interp's result.
- *
- * Side effects:
- * None.
- *
- *---------------------------------------------------------------------------
- */
-
-static int
-GetEntryIndex(
- Tcl_Interp *interp, /* For error messages. */
- Entry *entryPtr, /* Entry for which the index is being
- * specified. */
- const char *string, /* Specifies character in entryPtr. */
- int *indexPtr) /* Where to store converted character index */
-{
- size_t length;
-
- length = strlen(string);
-
- switch (string[0]) {
- case 'a':
- if (strncmp(string, "anchor", length) != 0) {
- goto badIndex;
- }
- *indexPtr = entryPtr->selectAnchor;
- break;
- case 'e':
- if (strncmp(string, "end", length) != 0) {
- goto badIndex;
- }
- *indexPtr = entryPtr->numChars;
- break;
- case 'i':
- if (strncmp(string, "insert", length) != 0) {
- goto badIndex;
- }
- *indexPtr = entryPtr->insertPos;
- break;
- case 's':
- if (entryPtr->selectFirst < 0) {
- Tcl_ResetResult(interp);
- Tcl_SetObjResult(interp, Tcl_ObjPrintf(
- "selection isn't in widget %s",
- Tk_PathName(entryPtr->tkwin)));
- Tcl_SetErrorCode(interp, "TK",
- (entryPtr->type == TK_ENTRY) ? "ENTRY" : "SPINBOX",
- "NO_SELECTION", NULL);
- return TCL_ERROR;
- }
- if (length < 5) {
- goto badIndex;
- }
- if (strncmp(string, "sel.first", length) == 0) {
- *indexPtr = entryPtr->selectFirst;
- } else if (strncmp(string, "sel.last", length) == 0) {
- *indexPtr = entryPtr->selectLast;
- } else {
- goto badIndex;
- }
- break;
- case '@': {
- int x, roundUp, maxWidth;
-
- if (Tcl_GetInt(NULL, string + 1, &x) != TCL_OK) {
- goto badIndex;
- }
- if (x < entryPtr->inset) {
- x = entryPtr->inset;
- }
- roundUp = 0;
- maxWidth = Tk_Width(entryPtr->tkwin) - entryPtr->inset
- - entryPtr->xWidth - 1;
- if (x > maxWidth) {
- x = maxWidth;
- roundUp = 1;
- }
- *indexPtr = Tk_PointToChar(entryPtr->textLayout,
- x - entryPtr->layoutX, 0);
-
- /*
- * Special trick: if the x-position was off-screen to the right, round
- * the index up to refer to the character just after the last visible
- * one on the screen. This is needed to enable the last character to
- * be selected, for example.
- */
-
- if (roundUp && (*indexPtr < entryPtr->numChars)) {
- *indexPtr += 1;
- }
- break;
- }
- default:
- if (Tcl_GetInt(NULL, string, indexPtr) != TCL_OK) {
- goto badIndex;
- }
- if (*indexPtr < 0){
- *indexPtr = 0;
- } else if (*indexPtr > entryPtr->numChars) {
- *indexPtr = entryPtr->numChars;
- }
- }
- return TCL_OK;
-
- badIndex:
- Tcl_SetObjResult(interp, Tcl_ObjPrintf("bad %s index \"%s\"",
- (entryPtr->type == TK_ENTRY) ? "entry" : "spinbox", string));
- Tcl_SetErrorCode(interp, "TK",
- (entryPtr->type == TK_ENTRY) ? "ENTRY" : "SPINBOX",
- "BAD_INDEX", NULL);
- return TCL_ERROR;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EntryScanTo --
- *
- * Given a y-coordinate (presumably of the curent mouse location) drag
- * the view in the window to implement the scan operation.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The view in the window may change.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EntryScanTo(
- Entry *entryPtr, /* Information about widget. */
- int x) /* X-coordinate to use for scan operation. */
-{
- int newLeftIndex;
-
- /*
- * Compute new leftIndex for entry by amplifying the difference between
- * the current position and the place where the scan started (the "mark"
- * position). If we run off the left or right side of the entry, then
- * reset the mark point so that the current position continues to
- * correspond to the edge of the window. This means that the picture will
- * start dragging as soon as the mouse reverses direction (without this
- * reset, might have to slide mouse a long ways back before the picture
- * starts moving again).
- */
-
- newLeftIndex = entryPtr->scanMarkIndex
- - (10 * (x - entryPtr->scanMarkX)) / entryPtr->avgWidth;
- if (newLeftIndex >= entryPtr->numChars) {
- newLeftIndex = entryPtr->scanMarkIndex = entryPtr->numChars - 1;
- entryPtr->scanMarkX = x;
- }
- if (newLeftIndex < 0) {
- newLeftIndex = entryPtr->scanMarkIndex = 0;
- entryPtr->scanMarkX = x;
- }
-
- if (newLeftIndex != entryPtr->leftIndex) {
- entryPtr->leftIndex = newLeftIndex;
- entryPtr->flags |= UPDATE_SCROLLBAR;
- EntryComputeGeometry(entryPtr);
- if (newLeftIndex != entryPtr->leftIndex) {
- entryPtr->scanMarkIndex = entryPtr->leftIndex;
- entryPtr->scanMarkX = x;
- }
- EventuallyRedraw(entryPtr);
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EntrySelectTo --
- *
- * Modify the selection by moving its un-anchored end. This could make
- * the selection either larger or smaller.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The selection changes.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EntrySelectTo(
- Entry *entryPtr, /* Information about widget. */
- int index) /* Character index of element that is to
- * become the "other" end of the selection. */
-{
- int newFirst, newLast;
-
- /*
- * Grab the selection if we don't own it already.
- */
-
- if (!(entryPtr->flags & GOT_SELECTION) && (entryPtr->exportSelection)
- && (!Tcl_IsSafe(entryPtr->interp))) {
- Tk_OwnSelection(entryPtr->tkwin, XA_PRIMARY, EntryLostSelection,
- entryPtr);
- entryPtr->flags |= GOT_SELECTION;
- }
-
- /*
- * Pick new starting and ending points for the selection.
- */
-
- if (entryPtr->selectAnchor > entryPtr->numChars) {
- entryPtr->selectAnchor = entryPtr->numChars;
- }
- if (entryPtr->selectAnchor <= index) {
- newFirst = entryPtr->selectAnchor;
- newLast = index;
- } else {
- newFirst = index;
- newLast = entryPtr->selectAnchor;
- if (newLast < 0) {
- newFirst = newLast = -1;
- }
- }
- if ((entryPtr->selectFirst == newFirst)
- && (entryPtr->selectLast == newLast)) {
- return;
- }
- entryPtr->selectFirst = newFirst;
- entryPtr->selectLast = newLast;
- EventuallyRedraw(entryPtr);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EntryFetchSelection --
- *
- * This function is called back by Tk when the selection is requested by
- * someone. It returns part or all of the selection in a buffer provided
- * by the caller.
- *
- * Results:
- * The return value is the number of non-NULL bytes stored at buffer.
- * Buffer is filled (or partially filled) with a NULL-terminated string
- * containing part or all of the selection, as given by offset and
- * maxBytes.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-EntryFetchSelection(
- ClientData clientData, /* Information about entry widget. */
- int offset, /* Byte offset within selection of first
- * character to be returned. */
- char *buffer, /* Location in which to place selection. */
- int maxBytes) /* Maximum number of bytes to place at buffer,
- * not including terminating NUL character. */
-{
- Entry *entryPtr = clientData;
- int byteCount;
- const char *string;
- const char *selStart, *selEnd;
-
- if ((entryPtr->selectFirst < 0) || (!entryPtr->exportSelection)
- || Tcl_IsSafe(entryPtr->interp)) {
- return -1;
- }
- string = entryPtr->displayString;
- selStart = Tcl_UtfAtIndex(string, entryPtr->selectFirst);
- selEnd = Tcl_UtfAtIndex(selStart,
- entryPtr->selectLast - entryPtr->selectFirst);
- byteCount = selEnd - selStart - offset;
- if (byteCount > maxBytes) {
- byteCount = maxBytes;
- }
- if (byteCount <= 0) {
- return 0;
- }
- memcpy(buffer, selStart + offset, (size_t) byteCount);
- buffer[byteCount] = '\0';
- return byteCount;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EntryLostSelection --
- *
- * This function is called back by Tk when the selection is grabbed away
- * from an entry widget.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The existing selection is unhighlighted, and the window is marked as
- * not containing a selection.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EntryLostSelection(
- ClientData clientData) /* Information about entry widget. */
-{
- Entry *entryPtr = clientData;
-
- entryPtr->flags &= ~GOT_SELECTION;
-
- /*
- * On Windows and Mac systems, we want to remember the selection for the
- * next time the focus enters the window. On Unix, we need to clear the
- * selection since it is always visible.
- * This is controlled by ::tk::AlwaysShowSelection.
- */
-
- if (TkpAlwaysShowSelection(entryPtr->tkwin)
- && (entryPtr->selectFirst >= 0) && entryPtr->exportSelection
- && (!Tcl_IsSafe(entryPtr->interp))) {
- entryPtr->selectFirst = -1;
- entryPtr->selectLast = -1;
- EventuallyRedraw(entryPtr);
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EventuallyRedraw --
- *
- * Ensure that an entry is eventually redrawn on the display.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Information gets redisplayed. Right now we don't do selective
- * redisplays: the whole window will be redrawn. This doesn't seem to
- * hurt performance noticeably, but if it does then this could be
- * changed.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EventuallyRedraw(
- Entry *entryPtr) /* Information about widget. */
-{
- if ((entryPtr->flags & ENTRY_DELETED) || !Tk_IsMapped(entryPtr->tkwin)) {
- return;
- }
-
- /*
- * Right now we don't do selective redisplays: the whole window will be
- * redrawn. This doesn't seem to hurt performance noticeably, but if it
- * does then this could be changed.
- */
-
- if (!(entryPtr->flags & REDRAW_PENDING)) {
- entryPtr->flags |= REDRAW_PENDING;
- Tcl_DoWhenIdle(DisplayEntry, entryPtr);
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EntryVisibleRange --
- *
- * Return information about the range of the entry that is currently
- * visible.
- *
- * Results:
- * *firstPtr and *lastPtr are modified to hold fractions between 0 and 1
- * identifying the range of characters visible in the entry.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EntryVisibleRange(
- Entry *entryPtr, /* Information about widget. */
- double *firstPtr, /* Return position of first visible character
- * in widget. */
- double *lastPtr) /* Return position of char just after last
- * visible one. */
-{
- int charsInWindow;
-
- if (entryPtr->numChars == 0) {
- *firstPtr = 0.0;
- *lastPtr = 1.0;
- } else {
- charsInWindow = Tk_PointToChar(entryPtr->textLayout,
- Tk_Width(entryPtr->tkwin) - entryPtr->inset
- - entryPtr->xWidth - entryPtr->layoutX - 1, 0);
- if (charsInWindow < entryPtr->numChars) {
- charsInWindow++;
- }
- charsInWindow -= entryPtr->leftIndex;
- if (charsInWindow == 0) {
- charsInWindow = 1;
- }
-
- *firstPtr = (double) entryPtr->leftIndex / entryPtr->numChars;
- *lastPtr = (double) (entryPtr->leftIndex + charsInWindow)
- / entryPtr->numChars;
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EntryUpdateScrollbar --
- *
- * This function is invoked whenever information has changed in an entry
- * in a way that would invalidate a scrollbar display. If there is an
- * associated scrollbar, then this function updates it by invoking a Tcl
- * command.
- *
- * Results:
- * None.
- *
- * Side effects:
- * A Tcl command is invoked, and an additional command may be
- * invoked to process errors in the command.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EntryUpdateScrollbar(
- Entry *entryPtr) /* Information about widget. */
-{
- char firstStr[TCL_DOUBLE_SPACE], lastStr[TCL_DOUBLE_SPACE];
- int code;
- double first, last;
- Tcl_Interp *interp;
- Tcl_DString buf;
-
- if (entryPtr->scrollCmd == NULL) {
- return;
- }
-
- interp = entryPtr->interp;
- Tcl_Preserve(interp);
- EntryVisibleRange(entryPtr, &first, &last);
- Tcl_PrintDouble(NULL, first, firstStr);
- Tcl_PrintDouble(NULL, last, lastStr);
- Tcl_DStringInit(&buf);
- Tcl_DStringAppend(&buf, entryPtr->scrollCmd, -1);
- Tcl_DStringAppend(&buf, " ", -1);
- Tcl_DStringAppend(&buf, firstStr, -1);
- Tcl_DStringAppend(&buf, " ", -1);
- Tcl_DStringAppend(&buf, lastStr, -1);
- code = Tcl_EvalEx(interp, Tcl_DStringValue(&buf), -1, 0);
- Tcl_DStringFree(&buf);
- if (code != TCL_OK) {
- Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
- "\n (horizontal scrolling command executed by %s)",
- Tk_PathName(entryPtr->tkwin)));
- Tcl_BackgroundException(interp, code);
- }
- Tcl_ResetResult(interp);
- Tcl_Release(interp);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EntryBlinkProc --
- *
- * This function is called as a timer handler to blink the insertion
- * cursor off and on.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The cursor gets turned on or off, redisplay gets invoked, and this
- * function reschedules itself.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EntryBlinkProc(
- ClientData clientData) /* Pointer to record describing entry. */
-{
- Entry *entryPtr = clientData;
-
- if ((entryPtr->state == STATE_DISABLED) ||
- (entryPtr->state == STATE_READONLY) ||
- !(entryPtr->flags & GOT_FOCUS) || (entryPtr->insertOffTime == 0)) {
- return;
- }
- if (entryPtr->flags & CURSOR_ON) {
- entryPtr->flags &= ~CURSOR_ON;
- entryPtr->insertBlinkHandler = Tcl_CreateTimerHandler(
- entryPtr->insertOffTime, EntryBlinkProc, entryPtr);
- } else {
- entryPtr->flags |= CURSOR_ON;
- entryPtr->insertBlinkHandler = Tcl_CreateTimerHandler(
- entryPtr->insertOnTime, EntryBlinkProc, entryPtr);
- }
- EventuallyRedraw(entryPtr);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * EntryFocusProc --
- *
- * This function is called whenever the entry gets or loses the input
- * focus. It's also called whenever the window is reconfigured while it
- * has the focus.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The cursor gets turned on or off.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-EntryFocusProc(
- Entry *entryPtr, /* Entry that got or lost focus. */
- int gotFocus) /* 1 means window is getting focus, 0 means
- * it's losing it. */
-{
- Tcl_DeleteTimerHandler(entryPtr->insertBlinkHandler);
- if (gotFocus) {
- entryPtr->flags |= GOT_FOCUS | CURSOR_ON;
- if (entryPtr->insertOffTime != 0) {
- entryPtr->insertBlinkHandler = Tcl_CreateTimerHandler(
- entryPtr->insertOnTime, EntryBlinkProc, entryPtr);
- }
- if (entryPtr->validate == VALIDATE_ALL ||
- entryPtr->validate == VALIDATE_FOCUS ||
- entryPtr->validate == VALIDATE_FOCUSIN) {
- EntryValidateChange(entryPtr, NULL, entryPtr->string, -1,
- VALIDATE_FOCUSIN);
- }
- } else {
- entryPtr->flags &= ~(GOT_FOCUS | CURSOR_ON);
- entryPtr->insertBlinkHandler = NULL;
- if (entryPtr->validate == VALIDATE_ALL ||
- entryPtr->validate == VALIDATE_FOCUS ||
- entryPtr->validate == VALIDATE_FOCUSOUT) {
- EntryValidateChange(entryPtr, NULL, entryPtr->string, -1,
- VALIDATE_FOCUSOUT);
- }
- }
- EventuallyRedraw(entryPtr);
-}
-
-/*
- *--------------------------------------------------------------
- *
- * EntryTextVarProc --
- *
- * This function is invoked when someone changes the variable whose
- * contents are to be displayed in an entry.
- *
- * Results:
- * NULL is always returned.
- *
- * Side effects:
- * The text displayed in the entry will change to match the variable.
- *
- *--------------------------------------------------------------
- */
-
- /* ARGSUSED */
-static char *
-EntryTextVarProc(
- ClientData clientData, /* Information about button. */
- Tcl_Interp *interp, /* Interpreter containing variable. */
- const char *name1, /* Name of variable. */
- const char *name2, /* Second part of variable name. */
- int flags) /* Information about what happened. */
-{
- Entry *entryPtr = clientData;
- const char *value;
-
- if (entryPtr->flags & ENTRY_DELETED) {
- /*
- * Just abort early if we entered here while being deleted.
- */
- return NULL;
- }
-
- /*
- * See ticket [5d991b82].
- */
-
- if (entryPtr->textVarName == NULL) {
- if (!(flags & TCL_INTERP_DESTROYED)) {
- Tcl_UntraceVar2(interp, name1, name2,
- TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
- EntryTextVarProc, clientData);
- }
- return NULL;
- }
-
- /*
- * If the variable is unset, then immediately recreate it unless the whole
- * interpreter is going away.
- */
-
- if (flags & TCL_TRACE_UNSETS) {
- if ((flags & TCL_TRACE_DESTROYED) && !(flags & TCL_INTERP_DESTROYED)) {
- Tcl_SetVar2(interp, entryPtr->textVarName, NULL,
- entryPtr->string, TCL_GLOBAL_ONLY);
- Tcl_TraceVar2(interp, entryPtr->textVarName, NULL,
- TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
- EntryTextVarProc, clientData);
- entryPtr->flags |= ENTRY_VAR_TRACED;
- }
- return NULL;
- }
-
- /*
- * Update the entry's text with the value of the variable, unless the
- * entry already has that value (this happens when the variable changes
- * value because we changed it because someone typed in the entry).
- */
-
- value = Tcl_GetVar2(interp, entryPtr->textVarName, NULL, TCL_GLOBAL_ONLY);
- if (value == NULL) {
- value = "";
- }
- EntrySetValue(entryPtr, value);
- return NULL;
-}
-
-/*
- *--------------------------------------------------------------
- *
- * EntryValidate --
- *
- * This function is invoked when any character is added or removed from
- * the entry widget, or a focus has trigerred validation.
- *
- * Results:
-
- * TCL_OK if the validatecommand passes the new string. TCL_BREAK if the
- * vcmd executed OK, but rejects the string. TCL_ERROR if an error
- * occurred while executing the vcmd or a valid Tcl_Bool is not returned.
- *
- * Side effects:
- * An error condition may arise
- *
- *--------------------------------------------------------------
- */
-
-static int
-EntryValidate(
- register Entry *entryPtr, /* Entry that needs validation. */
- register char *cmd) /* Validation command (NULL-terminated
- * string). */
-{
- register Tcl_Interp *interp = entryPtr->interp;
- int code, bool;
-
- code = Tcl_EvalEx(interp, cmd, -1, TCL_EVAL_GLOBAL | TCL_EVAL_DIRECT);
-
- /*
- * We accept TCL_OK and TCL_RETURN as valid return codes from the command
- * callback.
- */
-
- if (code != TCL_OK && code != TCL_RETURN) {
- Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
- "\n (in validation command executed by %s)",
- Tk_PathName(entryPtr->tkwin)));
- Tcl_BackgroundException(interp, code);
- return TCL_ERROR;
- }
-
- /*
- * The command callback should return an acceptable Tcl boolean.
- */
-
- if (Tcl_GetBooleanFromObj(interp, Tcl_GetObjResult(interp),
- &bool) != TCL_OK) {
- Tcl_AddErrorInfo(interp,
- "\n (invalid boolean result from validation command)");
- Tcl_BackgroundException(interp, TCL_ERROR);
- Tcl_ResetResult(interp);
- return TCL_ERROR;
- }
-
- Tcl_ResetResult(interp);
- return (bool ? TCL_OK : TCL_BREAK);
-}
-
-/*
- *--------------------------------------------------------------
- *
- * EntryValidateChange --
- *
- * This function is invoked when any character is added or removed from
- * the entry widget, or a focus has trigerred validation.
- *
- * Results:
- * TCL_OK if the validatecommand accepts the new string, TCL_ERROR if any
- * problems occured with validatecommand.
- *
- * Side effects:
- * The insertion/deletion may be aborted, and the validatecommand might
- * turn itself off (if an error or loop condition arises).
- *
- *--------------------------------------------------------------
- */
-
-static int
-EntryValidateChange(
- register Entry *entryPtr, /* Entry that needs validation. */
- const char *change, /* Characters to be added/deleted
- * (NUL-terminated string). */
- const char *newValue, /* Potential new value of entry string */
- int index, /* index of insert/delete, -1 otherwise */
- int type) /* forced, delete, insert, focusin or
- * focusout */
-{
- int code, varValidate = (entryPtr->flags & VALIDATE_VAR);
- char *p;
- Tcl_DString script;
-
- if (entryPtr->validateCmd == NULL ||
- entryPtr->validate == VALIDATE_NONE) {
- return (varValidate ? TCL_ERROR : TCL_OK);
- }
-
- /*
- * If we're already validating, then we're hitting a loop condition Return
- * and set validate to 0 to disallow further validations and prevent
- * current validation from finishing
- */
-
- if (entryPtr->flags & VALIDATING) {
- entryPtr->validate = VALIDATE_NONE;
- return (varValidate ? TCL_ERROR : TCL_OK);
- }
-
- entryPtr->flags |= VALIDATING;
-
- /*
- * Now form command string and run through the -validatecommand
- */
-
- Tcl_DStringInit(&script);
- ExpandPercents(entryPtr, entryPtr->validateCmd,
- change, newValue, index, type, &script);
- Tcl_DStringAppend(&script, "", 1);
-
- p = Tcl_DStringValue(&script);
- code = EntryValidate(entryPtr, p);
- Tcl_DStringFree(&script);
-
- /*
- * If e->validate has become VALIDATE_NONE during the validation, or we
- * now have VALIDATE_VAR set (from EntrySetValue) and didn't before, it
- * means that a loop condition almost occured. Do not allow this
- * validation result to finish.
- */
-
- if (entryPtr->validate == VALIDATE_NONE
- || (!varValidate && (entryPtr->flags & VALIDATE_VAR))) {
- code = TCL_ERROR;
- }
-
- /*
- * It's possible that the user deleted the entry during validation. In
- * that case, abort future validation and return an error.
- */
-
- if (entryPtr->flags & ENTRY_DELETED) {
- return TCL_ERROR;
- }
-
- /*
- * If validate will return ERROR, then disallow further validations
- * Otherwise, if it didn't accept the new string (returned TCL_BREAK) then
- * eval the invalidCmd (if it's set)
- */
-
- if (code == TCL_ERROR) {
- entryPtr->validate = VALIDATE_NONE;
- } else if (code == TCL_BREAK) {
- /*
- * If we were doing forced validation (like via a variable trace) and
- * the command returned 0, the we turn off validation because we
- * assume that textvariables have precedence in managing the value.
- * We also don't call the invcmd, as it may want to do entry
- * manipulation which the setting of the var will later wipe anyway.
- */
-
- if (varValidate) {
- entryPtr->validate = VALIDATE_NONE;
- } else if (entryPtr->invalidCmd != NULL) {
- int result;
-
- Tcl_DStringInit(&script);
- ExpandPercents(entryPtr, entryPtr->invalidCmd,
- change, newValue, index, type, &script);
- Tcl_DStringAppend(&script, "", 1);
- p = Tcl_DStringValue(&script);
- result = Tcl_EvalEx(entryPtr->interp, p, -1,
- TCL_EVAL_GLOBAL | TCL_EVAL_DIRECT);
- if (result != TCL_OK) {
- Tcl_AddErrorInfo(entryPtr->interp,
- "\n (in invalidcommand executed by entry)");
- Tcl_BackgroundException(entryPtr->interp, result);
- code = TCL_ERROR;
- entryPtr->validate = VALIDATE_NONE;
- }
- Tcl_DStringFree(&script);
-
- /*
- * It's possible that the user deleted the entry during
- * validation. In that case, abort future validation and return an
- * error.
- */
-
- if (entryPtr->flags & ENTRY_DELETED) {
- return TCL_ERROR;
- }
- }
- }
-
- entryPtr->flags &= ~VALIDATING;
-
- return code;
-}
-
-/*
- *--------------------------------------------------------------
- *
- * ExpandPercents --
- *
- * Given a command and an event, produce a new command by replacing %
- * constructs in the original command with information from the X event.
- *
- * Results:
- * The new expanded command is appended to the dynamic string given by
- * dsPtr.
- *
- * Side effects:
- * None.
- *
- *--------------------------------------------------------------
- */
-
-static void
-ExpandPercents(
- register Entry *entryPtr, /* Entry that needs validation. */
- register const char *before,
- /* Command containing percent expressions to
- * be replaced. */
- const char *change, /* Characters to added/deleted (NUL-terminated
- * string). */
- const char *newValue, /* Potential new value of entry string */
- int index, /* index of insert/delete */
- int type, /* INSERT or DELETE */
- Tcl_DString *dsPtr) /* Dynamic string in which to append new
- * command. */
-{
- int spaceNeeded, cvtFlags; /* Used to substitute string as proper Tcl
- * list element. */
- int number, length;
- register const char *string;
- int ch;
- char numStorage[2*TCL_INTEGER_SPACE];
-
- while (1) {
- if (*before == '\0') {
- break;
- }
- /*
- * Find everything up to the next % character and append it to the
- * result string.
- */
-
- string = before;
-
- /*
- * No need to convert '%', as it is in ascii range.
- */
-
- string = Tcl_UtfFindFirst(before, '%');
- if (string == NULL) {
- Tcl_DStringAppend(dsPtr, before, -1);
- break;
- } else if (string != before) {
- Tcl_DStringAppend(dsPtr, before, string-before);
- before = string;
- }
-
- /*
- * There's a percent sequence here. Process it.
- */
-
- before++; /* skip over % */
- if (*before != '\0') {
- before += TkUtfToUniChar(before, &ch);
- } else {
- ch = '%';
- }
- if (type == VALIDATE_BUTTON) {
- /*
- * -command %-substitution
- */
-
- switch (ch) {
- case 's': /* Current string value of spinbox */
- string = entryPtr->string;
- break;
- case 'd': /* direction, up or down */
- string = change;
- break;
- case 'W': /* widget name */
- string = Tk_PathName(entryPtr->tkwin);
- break;
- default:
- length = TkUniCharToUtf(ch, numStorage);
- numStorage[length] = '\0';
- string = numStorage;
- break;
- }
- } else {
- /*
- * -validatecommand / -invalidcommand %-substitution
- */
-
- switch (ch) {
- case 'd': /* Type of call that caused validation */
- switch (type) {
- case VALIDATE_INSERT:
- number = 1;
- break;
- case VALIDATE_DELETE:
- number = 0;
- break;
- default:
- number = -1;
- break;
- }
- sprintf(numStorage, "%d", number);
- string = numStorage;
- break;
- case 'i': /* index of insert/delete */
- sprintf(numStorage, "%d", index);
- string = numStorage;
- break;
- case 'P': /* 'Peeked' new value of the string */
- string = newValue;
- break;
- case 's': /* Current string value of spinbox */
- string = entryPtr->string;
- break;
- case 'S': /* string to be inserted/deleted, if any */
- string = change;
- break;
- case 'v': /* type of validation currently set */
- string = validateStrings[entryPtr->validate];
- break;
- case 'V': /* type of validation in effect */
- switch (type) {
- case VALIDATE_INSERT:
- case VALIDATE_DELETE:
- string = validateStrings[VALIDATE_KEY];
- break;
- case VALIDATE_FORCED:
- string = "forced";
- break;
- default:
- string = validateStrings[type];
- break;
- }
- break;
- case 'W': /* widget name */
- string = Tk_PathName(entryPtr->tkwin);
- break;
- default:
- length = TkUniCharToUtf(ch, numStorage);
- numStorage[length] = '\0';
- string = numStorage;
- break;
- }
- }
-
- spaceNeeded = Tcl_ScanCountedElement(string, -1, &cvtFlags);
- length = Tcl_DStringLength(dsPtr);
- Tcl_DStringSetLength(dsPtr, length + spaceNeeded);
- spaceNeeded = Tcl_ConvertCountedElement(string, -1,
- Tcl_DStringValue(dsPtr) + length,
- cvtFlags | TCL_DONT_USE_BRACES);
- Tcl_DStringSetLength(dsPtr, length + spaceNeeded);
- }
-}
-
-/*
- *--------------------------------------------------------------
- *
- * Tk_SpinboxObjCmd --
- *
- * This function is invoked to process the "spinbox" Tcl command. See the
- * user documentation for details on what it does.
- *
- * Results:
- * A standard Tcl result.
- *
- * Side effects:
- * See the user documentation.
- *
- *--------------------------------------------------------------
- */
-
-int
-Tk_SpinboxObjCmd(
- ClientData clientData, /* NULL. */
- Tcl_Interp *interp, /* Current interpreter. */
- int objc, /* Number of arguments. */
- Tcl_Obj *const objv[]) /* Argument objects. */
-{
- register Entry *entryPtr;
- register Spinbox *sbPtr;
- Tk_OptionTable optionTable;
- Tk_Window tkwin;
- char *tmp;
-
- if (objc < 2) {
- Tcl_WrongNumArgs(interp, 1, objv, "pathName ?-option value ...?");
- return TCL_ERROR;
- }
-
- tkwin = Tk_CreateWindowFromPath(interp, Tk_MainWindow(interp),
- Tcl_GetString(objv[1]), NULL);
- if (tkwin == NULL) {
- return TCL_ERROR;
- }
-
- /*
- * Create the option table for this widget class. If it has already been
- * created, Tk will return the cached value.
- */
-
- optionTable = Tk_CreateOptionTable(interp, sbOptSpec);
-
- /*
- * Initialize the fields of the structure that won't be initialized by
- * ConfigureEntry, or that ConfigureEntry requires to be initialized
- * already (e.g. resource pointers). Only the non-NULL/0 data must be
- * initialized as memset covers the rest.
- */
-
- sbPtr = ckalloc(sizeof(Spinbox));
- entryPtr = (Entry *) sbPtr;
- memset(sbPtr, 0, sizeof(Spinbox));
-
- entryPtr->tkwin = tkwin;
- entryPtr->display = Tk_Display(tkwin);
- entryPtr->interp = interp;
- entryPtr->widgetCmd = Tcl_CreateObjCommand(interp,
- Tk_PathName(entryPtr->tkwin), SpinboxWidgetObjCmd, sbPtr,
- EntryCmdDeletedProc);
- entryPtr->optionTable = optionTable;
- entryPtr->type = TK_SPINBOX;
- tmp = ckalloc(1);
- tmp[0] = '\0';
- entryPtr->string = tmp;
- entryPtr->selectFirst = -1;
- entryPtr->selectLast = -1;
-
- entryPtr->cursor = None;
- entryPtr->exportSelection = 1;
- entryPtr->justify = TK_JUSTIFY_LEFT;
- entryPtr->relief = TK_RELIEF_FLAT;
- entryPtr->state = STATE_NORMAL;
- entryPtr->displayString = entryPtr->string;
- entryPtr->inset = XPAD;
- entryPtr->textGC = None;
- entryPtr->selTextGC = None;
- entryPtr->highlightGC = None;
- entryPtr->avgWidth = 1;
- entryPtr->validate = VALIDATE_NONE;
-
- sbPtr->selElement = SEL_NONE;
- sbPtr->curElement = SEL_NONE;
- sbPtr->bCursor = None;
- sbPtr->repeatDelay = 400;
- sbPtr->repeatInterval = 100;
- sbPtr->fromValue = 0.0;
- sbPtr->toValue = 100.0;
- sbPtr->increment = 1.0;
- sbPtr->formatBuf = ckalloc(TCL_DOUBLE_SPACE);
- sbPtr->bdRelief = TK_RELIEF_FLAT;
- sbPtr->buRelief = TK_RELIEF_FLAT;
-
- /*
- * Keep a hold of the associated tkwin until we destroy the spinbox,
- * otherwise Tk might free it while we still need it.
- */
-
- Tcl_Preserve(entryPtr->tkwin);
-
- Tk_SetClass(entryPtr->tkwin, "Spinbox");
- Tk_SetClassProcs(entryPtr->tkwin, &entryClass, entryPtr);
- Tk_CreateEventHandler(entryPtr->tkwin,
- PointerMotionMask|ExposureMask|StructureNotifyMask|FocusChangeMask,
- EntryEventProc, entryPtr);
- Tk_CreateSelHandler(entryPtr->tkwin, XA_PRIMARY, XA_STRING,
- EntryFetchSelection, entryPtr, XA_STRING);
-
- if (Tk_InitOptions(interp, (char *) sbPtr, optionTable, tkwin)
- != TCL_OK) {
- Tk_DestroyWindow(entryPtr->tkwin);
- return TCL_ERROR;
- }
- if (ConfigureEntry(interp, entryPtr, objc-2, objv+2) != TCL_OK) {
- goto error;
- }
-
- Tcl_SetObjResult(interp, TkNewWindowObj(entryPtr->tkwin));
- return TCL_OK;
-
- error:
- Tk_DestroyWindow(entryPtr->tkwin);
- return TCL_ERROR;
-}
-
-/*
- *--------------------------------------------------------------
- *
- * SpinboxWidgetObjCmd --
- *
- * This function is invoked to process the Tcl command that corresponds
- * to a widget managed by this module. See the user documentation for
- * details on what it does.
- *
- * Results:
- * A standard Tcl result.
- *
- * Side effects:
- * See the user documentation.
- *
- *--------------------------------------------------------------
- */
-
-static int
-SpinboxWidgetObjCmd(
- ClientData clientData, /* Information about spinbox widget. */
- Tcl_Interp *interp, /* Current interpreter. */
- int objc, /* Number of arguments. */
- Tcl_Obj *const objv[]) /* Argument objects. */
-{
- Entry *entryPtr = clientData;
- Spinbox *sbPtr = clientData;
- int cmdIndex, selIndex, result;
- Tcl_Obj *objPtr;
-
- if (objc < 2) {
- Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?");
- return TCL_ERROR;
- }
-
- /*
- * Parse the widget command by looking up the second token in the list of
- * valid command names.
- */
-
- result = Tcl_GetIndexFromObj(interp, objv[1], sbCmdNames,
- "option", 0, &cmdIndex);
- if (result != TCL_OK) {
- return result;
- }
-
- Tcl_Preserve(entryPtr);
- switch ((enum sbCmd) cmdIndex) {
- case SB_CMD_BBOX: {
- int index, x, y, width, height;
- Tcl_Obj *bbox[4];
-
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "index");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[2]),
- &index) != TCL_OK) {
- goto error;
- }
- if ((index == entryPtr->numChars) && (index > 0)) {
- index--;
- }
- Tk_CharBbox(entryPtr->textLayout, index, &x, &y, &width, &height);
- bbox[0] = Tcl_NewIntObj(x + entryPtr->layoutX);
- bbox[1] = Tcl_NewIntObj(y + entryPtr->layoutY);
- bbox[2] = Tcl_NewIntObj(width);
- bbox[3] = Tcl_NewIntObj(height);
- Tcl_SetObjResult(interp, Tcl_NewListObj(4, bbox));
- break;
- }
-
- case SB_CMD_CGET:
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "option");
- goto error;
- }
-
- objPtr = Tk_GetOptionValue(interp, (char *) entryPtr,
- entryPtr->optionTable, objv[2], entryPtr->tkwin);
- if (objPtr == NULL) {
- goto error;
- }
- Tcl_SetObjResult(interp, objPtr);
- break;
-
- case SB_CMD_CONFIGURE:
- if (objc <= 3) {
- objPtr = Tk_GetOptionInfo(interp, (char *) entryPtr,
- entryPtr->optionTable, (objc == 3) ? objv[2] : NULL,
- entryPtr->tkwin);
- if (objPtr == NULL) {
- goto error;
- }
- Tcl_SetObjResult(interp, objPtr);
- } else {
- result = ConfigureEntry(interp, entryPtr, objc-2, objv+2);
- }
- break;
-
- case SB_CMD_DELETE: {
- int first, last, code;
-
- if ((objc < 3) || (objc > 4)) {
- Tcl_WrongNumArgs(interp, 2, objv, "firstIndex ?lastIndex?");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[2]),
- &first) != TCL_OK) {
- goto error;
- }
- if (objc == 3) {
- last = first + 1;
- } else {
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[3]),
- &last) != TCL_OK) {
- goto error;
- }
- }
- if ((last >= first) && (entryPtr->state == STATE_NORMAL)) {
- code = DeleteChars(entryPtr, first, last - first);
- if (code != TCL_OK) {
- goto error;
- }
- }
- break;
- }
-
- case SB_CMD_GET:
- if (objc != 2) {
- Tcl_WrongNumArgs(interp, 2, objv, NULL);
- goto error;
- }
- Tcl_SetObjResult(interp, Tcl_NewStringObj(entryPtr->string, -1));
- break;
-
- case SB_CMD_ICURSOR:
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "pos");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[2]),
- &entryPtr->insertPos) != TCL_OK) {
- goto error;
- }
- EventuallyRedraw(entryPtr);
- break;
-
- case SB_CMD_IDENTIFY: {
- int x, y, elem;
-
- if (objc != 4) {
- Tcl_WrongNumArgs(interp, 2, objv, "x y");
- goto error;
- }
- if ((Tcl_GetIntFromObj(interp, objv[2], &x) != TCL_OK) ||
- (Tcl_GetIntFromObj(interp, objv[3], &y) != TCL_OK)) {
- goto error;
- }
- elem = GetSpinboxElement(sbPtr, x, y);
- if (elem != SEL_NONE) {
- Tcl_SetObjResult(interp,
- Tcl_NewStringObj(selElementNames[elem], -1));
- }
- break;
- }
-
- case SB_CMD_INDEX: {
- int index;
-
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "string");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[2]),
- &index) != TCL_OK) {
- goto error;
- }
- Tcl_SetObjResult(interp, Tcl_NewIntObj(index));
- break;
- }
-
- case SB_CMD_INSERT: {
- int index, code;
-
- if (objc != 4) {
- Tcl_WrongNumArgs(interp, 2, objv, "index text");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[2]),
- &index) != TCL_OK) {
- goto error;
- }
- if (entryPtr->state == STATE_NORMAL) {
- code = InsertChars(entryPtr, index, Tcl_GetString(objv[3]));
- if (code != TCL_OK) {
- goto error;
- }
- }
- break;
- }
-
- case SB_CMD_INVOKE:
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "elemName");
- goto error;
- }
- result = Tcl_GetIndexFromObj(interp, objv[2],
- selElementNames, "element", 0, &cmdIndex);
- if (result != TCL_OK) {
- goto error;
- }
- if (entryPtr->state != STATE_DISABLED) {
- if (SpinboxInvoke(interp, sbPtr, cmdIndex) != TCL_OK) {
- goto error;
- }
- }
- break;
-
- case SB_CMD_SCAN: {
- int x;
- const char *minorCmd;
-
- if (objc != 4) {
- Tcl_WrongNumArgs(interp, 2, objv, "mark|dragto x");
- goto error;
- }
- if (Tcl_GetIntFromObj(interp, objv[3], &x) != TCL_OK) {
- goto error;
- }
-
- minorCmd = Tcl_GetString(objv[2]);
- if (minorCmd[0] == 'm'
- && (strncmp(minorCmd, "mark", strlen(minorCmd)) == 0)) {
- entryPtr->scanMarkX = x;
- entryPtr->scanMarkIndex = entryPtr->leftIndex;
- } else if ((minorCmd[0] == 'd')
- && (strncmp(minorCmd, "dragto", strlen(minorCmd)) == 0)) {
- EntryScanTo(entryPtr, x);
- } else {
- Tcl_SetObjResult(interp, Tcl_ObjPrintf(
- "bad scan option \"%s\": must be mark or dragto",
- minorCmd));
- Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "INDEX", "scan option",
- minorCmd, NULL);
- goto error;
- }
- break;
- }
-
- case SB_CMD_SELECTION: {
- int index, index2;
-
- if (objc < 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "option ?index?");
- goto error;
- }
-
- /*
- * Parse the selection sub-command, using the command table
- * "sbSelCmdNames" defined above.
- */
-
- result = Tcl_GetIndexFromObj(interp, objv[2], sbSelCmdNames,
- "selection option", 0, &selIndex);
- if (result != TCL_OK) {
- goto error;
- }
-
- /*
- * Disabled entries don't allow the selection to be modified, but
- * 'selection present' must return a boolean.
- */
-
- if ((entryPtr->state == STATE_DISABLED)
- && (selIndex != SB_SEL_PRESENT)) {
- goto done;
- }
-
- switch (selIndex) {
- case SB_SEL_ADJUST:
- if (objc != 4) {
- Tcl_WrongNumArgs(interp, 3, objv, "index");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr,
- Tcl_GetString(objv[3]), &index) != TCL_OK) {
- goto error;
- }
- if (entryPtr->selectFirst >= 0) {
- int half1, half2;
-
- half1 = (entryPtr->selectFirst + entryPtr->selectLast)/2;
- half2 = (entryPtr->selectFirst + entryPtr->selectLast + 1)/2;
- if (index < half1) {
- entryPtr->selectAnchor = entryPtr->selectLast;
- } else if (index > half2) {
- entryPtr->selectAnchor = entryPtr->selectFirst;
- } else {
- /*
- * We're at about the halfway point in the selection; just
- * keep the existing anchor.
- */
- }
- }
- EntrySelectTo(entryPtr, index);
- break;
-
- case SB_SEL_CLEAR:
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 3, objv, NULL);
- goto error;
- }
- if (entryPtr->selectFirst >= 0) {
- entryPtr->selectFirst = -1;
- entryPtr->selectLast = -1;
- EventuallyRedraw(entryPtr);
- }
- goto done;
-
- case SB_SEL_FROM:
- if (objc != 4) {
- Tcl_WrongNumArgs(interp, 3, objv, "index");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr,
- Tcl_GetString(objv[3]), &index) != TCL_OK) {
- goto error;
- }
- entryPtr->selectAnchor = index;
- break;
-
- case SB_SEL_PRESENT:
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 3, objv, NULL);
- goto error;
- }
- Tcl_SetObjResult(interp, Tcl_NewBooleanObj(
- entryPtr->selectFirst >= 0));
- goto done;
-
- case SB_SEL_RANGE:
- if (objc != 5) {
- Tcl_WrongNumArgs(interp, 3, objv, "start end");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr,
- Tcl_GetString(objv[3]), &index) != TCL_OK) {
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr,
- Tcl_GetString(objv[4]),& index2) != TCL_OK) {
- goto error;
- }
- if (index >= index2) {
- entryPtr->selectFirst = -1;
- entryPtr->selectLast = -1;
- } else {
- entryPtr->selectFirst = index;
- entryPtr->selectLast = index2;
- }
- if (!(entryPtr->flags & GOT_SELECTION)
- && entryPtr->exportSelection
- && (!Tcl_IsSafe(entryPtr->interp))) {
- Tk_OwnSelection(entryPtr->tkwin, XA_PRIMARY,
- EntryLostSelection, entryPtr);
- entryPtr->flags |= GOT_SELECTION;
- }
- EventuallyRedraw(entryPtr);
- break;
-
- case SB_SEL_TO:
- if (objc != 4) {
- Tcl_WrongNumArgs(interp, 3, objv, "index");
- goto error;
- }
- if (GetEntryIndex(interp, entryPtr,
- Tcl_GetString(objv[3]), &index) != TCL_OK) {
- goto error;
- }
- EntrySelectTo(entryPtr, index);
- break;
-
- case SB_SEL_ELEMENT:
- if ((objc < 3) || (objc > 4)) {
- Tcl_WrongNumArgs(interp, 3, objv, "?elemName?");
- goto error;
- }
- if (objc == 3) {
- Tcl_SetObjResult(interp, Tcl_NewStringObj(
- selElementNames[sbPtr->selElement], -1));
- } else {
- int lastElement = sbPtr->selElement;
-
- result = Tcl_GetIndexFromObj(interp, objv[3], selElementNames,
- "selection element", 0, &(sbPtr->selElement));
- if (result != TCL_OK) {
- goto error;
- }
- if (lastElement != sbPtr->selElement) {
- EventuallyRedraw(entryPtr);
- }
- }
- break;
- }
- break;
- }
-
- case SB_CMD_SET: {
- int code = TCL_OK;
-
- if (objc > 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "?string?");
- goto error;
- }
- if (objc == 3) {
- code = EntryValueChanged(entryPtr, Tcl_GetString(objv[2]));
- if (code != TCL_OK) {
- goto error;
- }
- }
- Tcl_SetObjResult(interp, Tcl_NewStringObj(entryPtr->string, -1));
- break;
- }
-
- case SB_CMD_VALIDATE: {
- int code;
-
- if (objc != 2) {
- Tcl_WrongNumArgs(interp, 2, objv, NULL);
- goto error;
- }
- selIndex = entryPtr->validate;
- entryPtr->validate = VALIDATE_ALL;
- code = EntryValidateChange(entryPtr, NULL, entryPtr->string,
- -1, VALIDATE_FORCED);
- if (entryPtr->validate != VALIDATE_NONE) {
- entryPtr->validate = selIndex;
- }
-
- Tcl_SetObjResult(interp, Tcl_NewBooleanObj(code == TCL_OK));
- break;
- }
-
- case SB_CMD_XVIEW: {
- int index;
-
- if (objc == 2) {
- double first, last;
- Tcl_Obj *span[2];
-
- EntryVisibleRange(entryPtr, &first, &last);
- span[0] = Tcl_NewDoubleObj(first);
- span[1] = Tcl_NewDoubleObj(last);
- Tcl_SetObjResult(interp, Tcl_NewListObj(2, span));
- goto done;
- } else if (objc == 3) {
- if (GetEntryIndex(interp, entryPtr, Tcl_GetString(objv[2]),
- &index) != TCL_OK) {
- goto error;
- }
- } else {
- double fraction;
- int count;
-
- index = entryPtr->leftIndex;
- switch (Tk_GetScrollInfoObj(interp, objc, objv, &fraction,
- &count)) {
- case TK_SCROLL_ERROR:
- goto error;
- case TK_SCROLL_MOVETO:
- index = (int) ((fraction * entryPtr->numChars) + 0.5);
- break;
- case TK_SCROLL_PAGES: {
- int charsPerPage;
-
- charsPerPage = ((Tk_Width(entryPtr->tkwin)
- - 2 * entryPtr->inset - entryPtr->xWidth)
- / entryPtr->avgWidth) - 2;
- if (charsPerPage < 1) {
- charsPerPage = 1;
- }
- index += count * charsPerPage;
- break;
- }
- case TK_SCROLL_UNITS:
- index += count;
- break;
- }
- }
- if (index >= entryPtr->numChars) {
- index = entryPtr->numChars - 1;
- }
- if (index < 0) {
- index = 0;
- }
- entryPtr->leftIndex = index;
- entryPtr->flags |= UPDATE_SCROLLBAR;
- EntryComputeGeometry(entryPtr);
- EventuallyRedraw(entryPtr);
- break;
- }
- }
-
- done:
- Tcl_Release(entryPtr);
- return result;
-
- error:
- Tcl_Release(entryPtr);
- return TCL_ERROR;
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * GetSpinboxElement --
- *
- * Return the element associated with an x,y coord.
- *
- * Results:
- * Element type as enum selelement.
- *
- * Side effects:
- * None.
- *
- *---------------------------------------------------------------------------
- */
-
-static int
-GetSpinboxElement(
- Spinbox *sbPtr, /* Spinbox for which the index is being
- * specified. */
- int x, int y) /* Widget-relative coordinates. */
-{
- Entry *entryPtr = (Entry *) sbPtr;
-
- if ((x < 0) || (y < 0) || (y > Tk_Height(entryPtr->tkwin))
- || (x > Tk_Width(entryPtr->tkwin))) {
- return SEL_NONE;
- }
-
- if (x > (Tk_Width(entryPtr->tkwin) - entryPtr->inset - entryPtr->xWidth)) {
- if (y > (Tk_Height(entryPtr->tkwin) / 2)) {
- return SEL_BUTTONDOWN;
- } else {
- return SEL_BUTTONUP;
- }
- }
- return SEL_ENTRY;
-}
-
-/*
- *--------------------------------------------------------------
- *
- * SpinboxInvoke --
- *
- * This function is invoked when the invoke method for the widget is
- * called.
- *
- * Results:
- * TCL_OK.
- *
- * Side effects:
- * A background error condition may arise when invoking the callback.
- * The widget value may change.
- *
- *--------------------------------------------------------------
- */
-
-static int
-SpinboxInvoke(
- register Tcl_Interp *interp,/* Current interpreter. */
- register Spinbox *sbPtr, /* Spinbox to invoke. */
- int element) /* Element to invoke, either the "up" or
- * "down" button. */
-{
- Entry *entryPtr = (Entry *) sbPtr;
- const char *type;
- int code, up;
- Tcl_DString script;
-
- switch (element) {
- case SEL_BUTTONUP:
- type = "up";
- up = 1;
- break;
- case SEL_BUTTONDOWN:
- type = "down";
- up = 0;
- break;
- default:
- return TCL_OK;
- }
-
- code = TCL_OK;
- if (fabs(sbPtr->increment) > MIN_DBL_VAL) {
- if (sbPtr->listObj != NULL) {
- Tcl_Obj *objPtr;
-
- Tcl_ListObjIndex(interp, sbPtr->listObj, sbPtr->eIndex, &objPtr);
- if (strcmp(Tcl_GetString(objPtr), entryPtr->string)) {
- /*
- * Somehow the string changed from what we expected, so let's
- * do a search on the list to see if the current value is
- * there. If not, move to the first element of the list.
- */
-
- int i, listc, elemLen, length = entryPtr->numChars;
- const char *bytes;
- Tcl_Obj **listv;
-
- Tcl_ListObjGetElements(interp, sbPtr->listObj, &listc, &listv);
- for (i = 0; i < listc; i++) {
- bytes = Tcl_GetStringFromObj(listv[i], &elemLen);
- if ((length == elemLen) &&
- (memcmp(bytes, entryPtr->string,
- (size_t) length) == 0)) {
- sbPtr->eIndex = i;
- break;
- }
- }
- }
- if (up) {
- if (++sbPtr->eIndex >= sbPtr->nElements) {
- if (sbPtr->wrap) {
- sbPtr->eIndex = 0;
- } else {
- sbPtr->eIndex = sbPtr->nElements-1;
- }
- }
- } else {
- if (--sbPtr->eIndex < 0) {
- if (sbPtr->wrap) {
- sbPtr->eIndex = sbPtr->nElements-1;
- } else {
- sbPtr->eIndex = 0;
- }
- }
- }
- Tcl_ListObjIndex(interp, sbPtr->listObj, sbPtr->eIndex, &objPtr);
- code = EntryValueChanged(entryPtr, Tcl_GetString(objPtr));
- } else if (!DOUBLES_EQ(sbPtr->fromValue, sbPtr->toValue)) {
- double dvalue;
-
- if (sscanf(entryPtr->string, "%lf", &dvalue) <= 0) {
- /*
- * If the string doesn't scan as a double value, just
- * use the -from value
- */
-
- dvalue = sbPtr->fromValue;
- } else if (up) {
- dvalue += sbPtr->increment;
- if (dvalue > sbPtr->toValue) {
- if (sbPtr->wrap) {
- dvalue = sbPtr->fromValue;
- } else {
- dvalue = sbPtr->toValue;
- }
- } else if (dvalue < sbPtr->fromValue) {
- /*
- * It's possible that when pressing up, we are still less
- * than the fromValue, because the user may have
- * manipulated the value by hand.
- */
-
- dvalue = sbPtr->fromValue;
- }
- } else {
- dvalue -= sbPtr->increment;
- if (dvalue < sbPtr->fromValue) {
- if (sbPtr->wrap) {
- dvalue = sbPtr->toValue;
- } else {
- dvalue = sbPtr->fromValue;
- }
- } else if (dvalue > sbPtr->toValue) {
- /*
- * It's possible that when pressing down, we are still
- * greater than the toValue, because the user may have
- * manipulated the value by hand.
- */
-
- dvalue = sbPtr->toValue;
- }
- }
- sprintf(sbPtr->formatBuf, sbPtr->valueFormat, dvalue);
- code = EntryValueChanged(entryPtr, sbPtr->formatBuf);
- }
- }
- if (code != TCL_OK) {
- return TCL_ERROR;
- }
-
- if (sbPtr->command != NULL) {
- Tcl_DStringInit(&script);
- ExpandPercents(entryPtr, sbPtr->command, type, "", 0,
- VALIDATE_BUTTON, &script);
- Tcl_DStringAppend(&script, "", 1);
-
- code = Tcl_EvalEx(interp, Tcl_DStringValue(&script), -1,
- TCL_EVAL_GLOBAL | TCL_EVAL_DIRECT);
- Tcl_DStringFree(&script);
-
- if (code != TCL_OK) {
- Tcl_AddErrorInfo(interp,
- "\n (in command executed by spinbox)");
- Tcl_BackgroundException(interp, code);
-
- /*
- * Yes, it's an error, but a bg one, so we return OK
- */
-
- return TCL_OK;
- }
-
- Tcl_ResetResult(interp);
- }
-
- return TCL_OK;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * ComputeFormat --
- *
- * This function is invoked to recompute the "format" fields of a
- * spinbox's widget record, which determines how the value of the dial is
- * converted to a string.
- *
- * Results:
- * Tcl result code.
- *
- * Side effects:
- * The format fields of the spinbox are modified.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-ComputeFormat(
- Spinbox *sbPtr) /* Information about dial widget. */
-{
- double maxValue, x;
- int mostSigDigit, numDigits, leastSigDigit, afterDecimal;
- int eDigits, fDigits;
-
- /*
- * Compute the displacement from the decimal of the most significant digit
- * required for any number in the dial's range.
- */
-
- if (sbPtr->reqFormat) {
- sbPtr->valueFormat = sbPtr->reqFormat;
- return TCL_OK;
- }
-
- maxValue = fabs(sbPtr->fromValue);
- x = fabs(sbPtr->toValue);
- if (x > maxValue) {
- maxValue = x;
- }
- if (maxValue == 0) {
- maxValue = 1;
- }
- mostSigDigit = (int) floor(log10(maxValue));
-
- if (fabs(sbPtr->increment) > MIN_DBL_VAL) {
- /*
- * A increment was specified, so use it.
- */
-
- leastSigDigit = (int) floor(log10(sbPtr->increment));
- } else {
- leastSigDigit = 0;
- }
- numDigits = mostSigDigit - leastSigDigit + 1;
- if (numDigits < 1) {
- numDigits = 1;
- }
-
- /*
- * Compute the number of characters required using "e" format and "f"
- * format, and then choose whichever one takes fewer characters.
- */
-
- eDigits = numDigits + 4;
- if (numDigits > 1) {
- eDigits++; /* Decimal point. */
- }
- afterDecimal = numDigits - mostSigDigit - 1;
- if (afterDecimal < 0) {
- afterDecimal = 0;
- }
- fDigits = (mostSigDigit >= 0) ? mostSigDigit + afterDecimal : afterDecimal;
- if (afterDecimal > 0) {
- fDigits++; /* Decimal point. */
- }
- if (mostSigDigit < 0) {
- fDigits++; /* Zero to left of decimal point. */
- }
- if (fDigits <= eDigits) {
- sprintf(sbPtr->digitFormat, "%%.%df", afterDecimal);
- } else {
- sprintf(sbPtr->digitFormat, "%%.%de", numDigits-1);
- }
- sbPtr->valueFormat = sbPtr->digitFormat;
- return TCL_OK;
-}
-
-/*
- * Local Variables:
- * mode: c
- * c-basic-offset: 4
- * fill-column: 78
- * End:
- */