EVOLUTION-MANAGER

Edit File: tkEntry.h

/* * tkEntry.h -- * * This module defined the structures for the Entry & SpinBox widgets. * * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. * * Copyright (c) 2002 Apple Computer, Inc. */ #ifndef _TKENTRY #define _TKENTRY #ifndef _TKINT #include "tkInt.h" #endif #ifdef BUILD_tk #undef TCL_STORAGE_CLASS #define TCL_STORAGE_CLASS DLLEXPORT #endif enum EntryType { TK_ENTRY, TK_SPINBOX }; /* * A data structure of the following type is kept for each Entry widget * managed by this file: */ typedef struct { Tk_Window tkwin; /* Window that embodies the entry. NULL means * that the window has been destroyed but the * data structures haven't yet been cleaned * up.*/ Display *display; /* Display containing widget. Used, among * other things, so that resources can be * freed even after tkwin has gone away. */ Tcl_Interp *interp; /* Interpreter associated with entry. */ Tcl_Command widgetCmd; /* Token for entry's widget command. */ Tk_OptionTable optionTable; /* Table that defines configuration options * available for this widget. */ enum EntryType type; /* Specialized type of Entry widget */ /* * Fields that are set by widget commands other than "configure". */ CONST char *string; /* Pointer to storage for string; * NULL-terminated; malloc-ed. */ int insertPos; /* Character index before which next typed * character will be inserted. */ /* * Information about what's selected, if any. */ int selectFirst; /* Character index of first selected character * (-1 means nothing selected. */ int selectLast; /* Character index just after last selected * character (-1 means nothing selected. */ int selectAnchor; /* Fixed end of selection (i.e. "select to" * operation will use this as one end of the * selection). */ /* * Information for scanning: */ int scanMarkX; /* X-position at which scan started (e.g. * button was pressed here). */ int scanMarkIndex; /* Character index of character that was at * left of window when scan started. */ /* * Configuration settings that are updated by Tk_ConfigureWidget. */ Tk_3DBorder normalBorder; /* Used for drawing border around whole * window, plus used for background. */ Tk_3DBorder disabledBorder; /* Used for drawing border around whole window * in disabled state, plus used for * background. */ Tk_3DBorder readonlyBorder; /* Used for drawing border around whole window * in readonly state, plus used for * background. */ int borderWidth; /* Width of 3-D border around window. */ Tk_Cursor cursor; /* Current cursor for window, or None. */ int exportSelection; /* Non-zero means tie internal entry selection * to X selection. */ Tk_Font tkfont; /* Information about text font, or NULL. */ XColor *fgColorPtr; /* Text color in normal mode. */ XColor *dfgColorPtr; /* Text color in disabled mode. */ XColor *highlightBgColorPtr;/* Color for drawing traversal highlight area * when highlight is off. */ XColor *highlightColorPtr; /* Color for drawing traversal highlight. */ int highlightWidth; /* Width in pixels of highlight to draw around * widget when it has the focus. <= 0 means * don't draw a highlight. */ Tk_3DBorder insertBorder; /* Used to draw vertical bar for insertion * cursor. */ int insertBorderWidth; /* Width of 3-D border around insert cursor. */ int insertOffTime; /* Number of milliseconds cursor should spend * in "off" state for each blink. */ int insertOnTime; /* Number of milliseconds cursor should spend * in "on" state for each blink. */ int insertWidth; /* Total width of insert cursor. */ Tk_Justify justify; /* Justification to use for text within * window. */ int relief; /* 3-D effect: TK_RELIEF_RAISED, etc. */ Tk_3DBorder selBorder; /* Border and background for selected * characters. */ int selBorderWidth; /* Width of border around selection. */ XColor *selFgColorPtr; /* Foreground color for selected text. */ int state; /* Normal or disabled. Entry is read-only when * disabled. */ char *textVarName; /* Name of variable (malloc'ed) or NULL. If * non-NULL, entry's string tracks the * contents of this variable and vice * versa. */ char *takeFocus; /* Value of -takefocus option; not used in the * C code, but used by keyboard traversal * scripts. Malloc'ed, but may be NULL. */ int prefWidth; /* Desired width of window, measured in * average characters. */ char *scrollCmd; /* Command prefix for communicating with * scrollbar(s). Malloc'ed. NULL means no * command to issue. */ char *showChar; /* Value of -show option. If non-NULL, first * character is used for displaying all * characters in entry. Malloc'ed. This is * only used by the Entry widget. */ /* * Fields whose values are derived from the current values of the * configuration settings above. */ CONST char *displayString; /* String to use when displaying. This may be * a pointer to string, or a pointer to * malloced memory with the same character * length as string but whose characters are * all equal to showChar. */ int numBytes; /* Length of string in bytes. */ int numChars; /* Length of string in characters. Both string * and displayString have the same character * length, but may have different byte lengths * due to being made from different UTF-8 * characters. */ int numDisplayBytes; /* Length of displayString in bytes. */ int inset; /* Number of pixels on the left and right * sides that are taken up by XPAD, * borderWidth (if any), and highlightWidth * (if any). */ Tk_TextLayout textLayout; /* Cached text layout information. */ int layoutX, layoutY; /* Origin for layout. */ int leftX; /* X position at which character at leftIndex * is drawn (varies depending on justify). */ int leftIndex; /* Character index of left-most character * visible in window. */ Tcl_TimerToken insertBlinkHandler; /* Timer handler used to blink cursor on and * off. */ GC textGC; /* For drawing normal text. */ GC selTextGC; /* For drawing selected text. */ GC highlightGC; /* For drawing traversal highlight. */ int avgWidth; /* Width of average character. */ int xWidth; /* Extra width to reserve for widget. Used by * spinboxes for button space. */ int flags; /* Miscellaneous flags; see below for * definitions. */ int validate; /* Non-zero means try to validate */ char *validateCmd; /* Command prefix to use when invoking * validate command. NULL means don't invoke * commands. Malloc'ed. */ char *invalidCmd; /* Command called when a validation returns 0 * (successfully fails), defaults to {}. */ } Entry; /* * A data structure of the following type is kept for each spinbox widget * managed by this file: */ typedef struct { Entry entry; /* A pointer to the generic entry structure. * This must be the first element of the * Spinbox. */ /* * Spinbox specific configuration settings. */ Tk_3DBorder activeBorder; /* Used for drawing border around active * buttons. */ Tk_3DBorder buttonBorder; /* Used for drawing border around buttons. */ Tk_Cursor bCursor; /* cursor for buttons, or None. */ int bdRelief; /* 3-D effect: TK_RELIEF_RAISED, etc. */ int buRelief; /* 3-D effect: TK_RELIEF_RAISED, etc. */ char *command; /* Command to invoke for spin buttons. NULL * means no command to issue. */ /* * Spinbox specific fields for use with configuration settings above. */ int wrap; /* whether to wrap around when spinning */ int selElement; /* currently selected control */ int curElement; /* currently mouseover control */ int repeatDelay; /* repeat delay */ int repeatInterval; /* repeat interval */ double fromValue; /* Value corresponding to left/top of dial */ double toValue; /* Value corresponding to right/bottom of * dial */ double increment; /* If > 0, all values are rounded to an even * multiple of this value. */ char *formatBuf; /* string into which to format value. * Malloc'ed. */ char *reqFormat; /* Sprintf conversion specifier used for the * value that the users requests. Malloc'ed */ char *valueFormat; /* Sprintf conversion specifier used for the * value. */ char digitFormat[10]; /* Sprintf conversion specifier computed from * digits and other information; used for the * value. */ char *valueStr; /* Values List. Malloc'ed. */ Tcl_Obj *listObj; /* Pointer to the list object being used */ int eIndex; /* Holds the current index into elements */ int nElements; /* Holds the current count of elements */ } Spinbox; /* * Assigned bits of "flags" fields of Entry structures, and what those bits * mean: * * REDRAW_PENDING: Non-zero means a DoWhenIdle handler has * already been queued to redisplay the entry. * BORDER_NEEDED: Non-zero means 3-D border must be redrawn * around window during redisplay. Normally only * text portion needs to be redrawn. * CURSOR_ON: Non-zero means insert cursor is displayed at * present. 0 means it isn't displayed. * GOT_FOCUS: Non-zero means this window has the input * focus. * UPDATE_SCROLLBAR: Non-zero means scrollbar should be updated * during next redisplay operation. * GOT_SELECTION: Non-zero means we've claimed the selection. * ENTRY_DELETED: This entry has been effectively destroyed. * VALIDATING: Non-zero means we are in a validateCmd * VALIDATE_VAR: Non-zero means we are attempting to validate * the entry's textvariable with validateCmd * VALIDATE_ABORT: Non-zero if validatecommand signals an abort * for current procedure and make no changes * ENTRY_VAR_TRACED: Non-zero if a var trace is set. */ #define REDRAW_PENDING 1 #define BORDER_NEEDED 2 #define CURSOR_ON 4 #define GOT_FOCUS 8 #define UPDATE_SCROLLBAR 0x10 #define GOT_SELECTION 0x20 #define ENTRY_DELETED 0x40 #define VALIDATING 0x80 #define VALIDATE_VAR 0x100 #define VALIDATE_ABORT 0x200 #define ENTRY_VAR_TRACED 0x400 /* * The following enum is used to define a type for the -state option of the * Entry widget. These values are used as indices into the string table below. */ enum state { STATE_DISABLED, STATE_NORMAL, STATE_READONLY }; /* * This is the element index corresponding to the strings in selElementNames. * If you modify them, you must modify the numbers here. */ enum selelement { SEL_NONE, SEL_BUTTONDOWN, SEL_BUTTONUP, SEL_NULL, SEL_ENTRY }; /* * Declaration of functions used in the implementation of the native side of * the Entry widget. */ MODULE_SCOPE int TkpDrawEntryBorderAndFocus(Entry *entryPtr, Drawable d, int isSpinbox); MODULE_SCOPE int TkpDrawSpinboxButtons(Spinbox *sbPtr, Drawable d); #undef TCL_STORAGE_CLASS #define TCL_STORAGE_CLASS DLLIMPORT #endif /* _TKENTRY */