stk/Tk/generic/tkButton.c

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/*
* tkButton.c --
*
* This module implements a collection of button-like
* widgets for the Tk toolkit. The widgets implemented
* include labels, buttons, check buttons, and radio
* buttons.
*
* Copyright (c) 1990-1994 The Regents of the University of California.
* Copyright (c) 1994-1995 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* SCCS: @(#) tkButton.c 1.144 97/07/31 09:04:57
*/
#include "tkButton.h"
#include "default.h"
#ifdef BGLK_CODE
# define STk_tcl_setvar SCM_tcl_setvar
# define STk_tcl_getvar SCM_tcl_getvar
# define STk_STRINGIFY SCM_STRINGIFY
#endif
/*
* Class names for buttons, indexed by one of the type values above.
*/
static char *classNames[] = {"Label", "Button", "Checkbutton", "Radiobutton"};
/*
* The class procedure table for the button widget.
*/
static int configFlags[] = {LABEL_MASK, BUTTON_MASK,
CHECK_BUTTON_MASK, RADIO_BUTTON_MASK};
/*
* Information used for parsing configuration specs:
*/
Tk_ConfigSpec tkpButtonConfigSpecs[] = {
{TK_CONFIG_BORDER, "-activebackground", "activeBackground", "Foreground",
DEF_BUTTON_ACTIVE_BG_COLOR, Tk_Offset(TkButton, activeBorder),
BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK
|TK_CONFIG_COLOR_ONLY},
{TK_CONFIG_BORDER, "-activebackground", "activeBackground", "Foreground",
DEF_BUTTON_ACTIVE_BG_MONO, Tk_Offset(TkButton, activeBorder),
BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK
|TK_CONFIG_MONO_ONLY},
{TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background",
DEF_BUTTON_ACTIVE_FG_COLOR, Tk_Offset(TkButton, activeFg),
BUTTON_MASK|TK_CONFIG_COLOR_ONLY},
{TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background",
DEF_CHKRAD_ACTIVE_FG_COLOR, Tk_Offset(TkButton, activeFg),
CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_COLOR_ONLY},
{TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background",
DEF_BUTTON_ACTIVE_FG_MONO, Tk_Offset(TkButton, activeFg),
BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK
|TK_CONFIG_MONO_ONLY},
{TK_CONFIG_ANCHOR, "-anchor", "anchor", "Anchor",
DEF_BUTTON_ANCHOR, Tk_Offset(TkButton, anchor), ALL_MASK},
{TK_CONFIG_BORDER, "-background", "background", "Background",
DEF_BUTTON_BG_COLOR, Tk_Offset(TkButton, normalBorder),
ALL_MASK | TK_CONFIG_COLOR_ONLY},
{TK_CONFIG_BORDER, "-background", "background", "Background",
DEF_BUTTON_BG_MONO, Tk_Offset(TkButton, normalBorder),
ALL_MASK | TK_CONFIG_MONO_ONLY},
{TK_CONFIG_SYNONYM, "-bd", "borderWidth", (char *) NULL,
(char *) NULL, 0, ALL_MASK},
{TK_CONFIG_SYNONYM, "-bg", "background", (char *) NULL,
(char *) NULL, 0, ALL_MASK},
{TK_CONFIG_BITMAP, "-bitmap", "bitmap", "Bitmap",
DEF_BUTTON_BITMAP, Tk_Offset(TkButton, bitmap),
ALL_MASK|TK_CONFIG_NULL_OK},
{TK_CONFIG_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
DEF_BUTTON_BORDER_WIDTH, Tk_Offset(TkButton, borderWidth), ALL_MASK},
#ifdef SCM_CODE
{TK_CONFIG_CLOSURE, "-command", "command", "Command",
#else
{TK_CONFIG_STRING, "-command", "command", "Command",
#endif
DEF_BUTTON_COMMAND, Tk_Offset(TkButton, command),
BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK},
{TK_CONFIG_ACTIVE_CURSOR, "-cursor", "cursor", "Cursor",
DEF_BUTTON_CURSOR, Tk_Offset(TkButton, cursor),
ALL_MASK|TK_CONFIG_NULL_OK},
{TK_CONFIG_UID, "-default", "default", "Default",
DEF_BUTTON_DEFAULT, Tk_Offset(TkButton, defaultState), BUTTON_MASK},
{TK_CONFIG_COLOR, "-disabledforeground", "disabledForeground",
"DisabledForeground", DEF_BUTTON_DISABLED_FG_COLOR,
Tk_Offset(TkButton, disabledFg), BUTTON_MASK|CHECK_BUTTON_MASK
|RADIO_BUTTON_MASK|TK_CONFIG_COLOR_ONLY|TK_CONFIG_NULL_OK},
{TK_CONFIG_COLOR, "-disabledforeground", "disabledForeground",
"DisabledForeground", DEF_BUTTON_DISABLED_FG_MONO,
Tk_Offset(TkButton, disabledFg), BUTTON_MASK|CHECK_BUTTON_MASK
|RADIO_BUTTON_MASK|TK_CONFIG_MONO_ONLY|TK_CONFIG_NULL_OK},
#ifdef STk_CODE
{TK_CONFIG_ENV, "-environment", "environment", "Environment",
DEF_BUTTON_ENV, Tk_Offset(TkButton, env),
ALL_MASK},
#endif
{TK_CONFIG_SYNONYM, "-fg", "foreground", (char *) NULL,
(char *) NULL, 0, ALL_MASK},
{TK_CONFIG_FONT, "-font", "font", "Font",
DEF_BUTTON_FONT, Tk_Offset(TkButton, tkfont),
ALL_MASK},
{TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground",
DEF_BUTTON_FG, Tk_Offset(TkButton, normalFg), LABEL_MASK|BUTTON_MASK},
{TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground",
DEF_CHKRAD_FG, Tk_Offset(TkButton, normalFg), CHECK_BUTTON_MASK
|RADIO_BUTTON_MASK},
#ifdef SCM_CODE
{TK_CONFIG_SINT, "-height", "height", "Height",
#else
{TK_CONFIG_STRING, "-height", "height", "Height",
#endif
DEF_BUTTON_HEIGHT, Tk_Offset(TkButton, heightString), ALL_MASK},
{TK_CONFIG_BORDER, "-highlightbackground", "highlightBackground",
"HighlightBackground", DEF_BUTTON_HIGHLIGHT_BG,
Tk_Offset(TkButton, highlightBorder), ALL_MASK},
{TK_CONFIG_COLOR, "-highlightcolor", "highlightColor", "HighlightColor",
DEF_BUTTON_HIGHLIGHT, Tk_Offset(TkButton, highlightColorPtr),
ALL_MASK},
{TK_CONFIG_PIXELS, "-highlightthickness", "highlightThickness",
"HighlightThickness",
DEF_LABEL_HIGHLIGHT_WIDTH, Tk_Offset(TkButton, highlightWidth),
LABEL_MASK},
{TK_CONFIG_PIXELS, "-highlightthickness", "highlightThickness",
"HighlightThickness",
DEF_BUTTON_HIGHLIGHT_WIDTH, Tk_Offset(TkButton, highlightWidth),
BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK},
#ifdef SCM_CODE
{TK_CONFIG_IMAGE, "-image", "image", "Image",
#else
{TK_CONFIG_STRING, "-image", "image", "Image",
#endif
DEF_BUTTON_IMAGE, Tk_Offset(TkButton, imageString),
ALL_MASK|TK_CONFIG_NULL_OK},
{TK_CONFIG_BOOLEAN, "-indicatoron", "indicatorOn", "IndicatorOn",
DEF_BUTTON_INDICATOR, Tk_Offset(TkButton, indicatorOn),
CHECK_BUTTON_MASK|RADIO_BUTTON_MASK},
{TK_CONFIG_JUSTIFY, "-justify", "justify", "Justify",
DEF_BUTTON_JUSTIFY, Tk_Offset(TkButton, justify), ALL_MASK},
#ifdef SCM_CODE
{TK_CONFIG_BSTRING, "-offvalue", "offValue", "Value",
#else
{TK_CONFIG_STRING, "-offvalue", "offValue", "Value",
#endif
DEF_BUTTON_OFF_VALUE, Tk_Offset(TkButton, offValue),
CHECK_BUTTON_MASK},
#ifdef SCM_CODE
{TK_CONFIG_BSTRING, "-onvalue", "onValue", "Value",
#else
{TK_CONFIG_STRING, "-onvalue", "onValue", "Value",
#endif
DEF_BUTTON_ON_VALUE, Tk_Offset(TkButton, onValue),
CHECK_BUTTON_MASK},
{TK_CONFIG_PIXELS, "-padx", "padX", "Pad",
DEF_BUTTON_PADX, Tk_Offset(TkButton, padX), BUTTON_MASK},
{TK_CONFIG_PIXELS, "-padx", "padX", "Pad",
DEF_LABCHKRAD_PADX, Tk_Offset(TkButton, padX),
LABEL_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK},
{TK_CONFIG_PIXELS, "-pady", "padY", "Pad",
DEF_BUTTON_PADY, Tk_Offset(TkButton, padY), BUTTON_MASK},
{TK_CONFIG_PIXELS, "-pady", "padY", "Pad",
DEF_LABCHKRAD_PADY, Tk_Offset(TkButton, padY),
LABEL_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK},
{TK_CONFIG_RELIEF, "-relief", "relief", "Relief",
DEF_BUTTON_RELIEF, Tk_Offset(TkButton, relief), BUTTON_MASK},
{TK_CONFIG_RELIEF, "-relief", "relief", "Relief",
DEF_LABCHKRAD_RELIEF, Tk_Offset(TkButton, relief),
LABEL_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK},
{TK_CONFIG_BORDER, "-selectcolor", "selectColor", "Background",
DEF_BUTTON_SELECT_COLOR, Tk_Offset(TkButton, selectBorder),
CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_COLOR_ONLY
|TK_CONFIG_NULL_OK},
{TK_CONFIG_BORDER, "-selectcolor", "selectColor", "Background",
DEF_BUTTON_SELECT_MONO, Tk_Offset(TkButton, selectBorder),
CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_MONO_ONLY
|TK_CONFIG_NULL_OK},
{TK_CONFIG_STRING, "-selectimage", "selectImage", "SelectImage",
DEF_BUTTON_SELECT_IMAGE, Tk_Offset(TkButton, selectImageString),
CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK},
{TK_CONFIG_UID, "-state", "state", "State",
DEF_BUTTON_STATE, Tk_Offset(TkButton, state),
BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK},
#ifdef SCM_CODE
{TK_CONFIG_BOOLEAN, "-stringvalue", "stringvalue", "StringValue",
"#f", Tk_Offset(TkButton, string),
BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK},
#endif
#ifdef SCM_CODE
{TK_CONFIG_CLOSURE, "-takefocus", "takeFocus", "TakeFocus",
#else
{TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus",
#endif
DEF_LABEL_TAKE_FOCUS, Tk_Offset(TkButton, takeFocus),
LABEL_MASK|TK_CONFIG_NULL_OK},
#ifdef SCM_CODE
{TK_CONFIG_CLOSURE, "-takefocus", "takeFocus", "TakeFocus",
#else
{TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus",
#endif
DEF_BUTTON_TAKE_FOCUS, Tk_Offset(TkButton, takeFocus),
BUTTON_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK},
{TK_CONFIG_STRING, "-text", "text", "Text",
DEF_BUTTON_TEXT, Tk_Offset(TkButton, text), ALL_MASK},
{TK_CONFIG_STRING, "-textvariable", "textVariable", "Variable",
DEF_BUTTON_TEXT_VARIABLE, Tk_Offset(TkButton, textVarName),
ALL_MASK|TK_CONFIG_NULL_OK},
{TK_CONFIG_INT, "-underline", "underline", "Underline",
DEF_BUTTON_UNDERLINE, Tk_Offset(TkButton, underline), ALL_MASK},
#ifdef SCM_CODE
{TK_CONFIG_BSTRING, "-value", "value", "Value",
#else
{TK_CONFIG_STRING, "-value", "value", "Value",
#endif
DEF_BUTTON_VALUE, Tk_Offset(TkButton, onValue),
RADIO_BUTTON_MASK},
{TK_CONFIG_STRING, "-variable", "variable", "Variable",
DEF_RADIOBUTTON_VARIABLE, Tk_Offset(TkButton, selVarName),
RADIO_BUTTON_MASK},
{TK_CONFIG_STRING, "-variable", "variable", "Variable",
DEF_CHECKBUTTON_VARIABLE, Tk_Offset(TkButton, selVarName),
CHECK_BUTTON_MASK|TK_CONFIG_NULL_OK},
#ifdef SCM_CODE
{TK_CONFIG_SINT, "-width", "width", "Width",
#else
{TK_CONFIG_STRING, "-width", "width", "Width",
#endif
DEF_BUTTON_WIDTH, Tk_Offset(TkButton, widthString), ALL_MASK},
{TK_CONFIG_PIXELS, "-wraplength", "wrapLength", "WrapLength",
DEF_BUTTON_WRAP_LENGTH, Tk_Offset(TkButton, wrapLength), ALL_MASK},
{TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
(char *) NULL, 0, 0}
};
/*
* String to print out in error messages, identifying options for
* widget commands for different types of labels or buttons:
*/
static char *optionStrings[] = {
"cget or configure",
"cget, configure, flash, or invoke",
"cget, configure, deselect, flash, invoke, select, or toggle",
"cget, configure, deselect, flash, invoke, or select"
};
/*
* Forward declarations for procedures defined later in this file:
*/
static void ButtonCmdDeletedProc _ANSI_ARGS_((
ClientData clientData));
static int ButtonCreate _ANSI_ARGS_((ClientData clientData,
Tcl_Interp *interp, int argc, char **argv,
int type));
static void ButtonEventProc _ANSI_ARGS_((ClientData clientData,
XEvent *eventPtr));
static void ButtonImageProc _ANSI_ARGS_((ClientData clientData,
int x, int y, int width, int height,
int imgWidth, int imgHeight));
static void ButtonSelectImageProc _ANSI_ARGS_((
ClientData clientData, int x, int y, int width,
int height, int imgWidth, int imgHeight));
static char * ButtonTextVarProc _ANSI_ARGS_((ClientData clientData,
Tcl_Interp *interp, char *name1, char *name2,
int flags));
static char * ButtonVarProc _ANSI_ARGS_((ClientData clientData,
Tcl_Interp *interp, char *name1, char *name2,
int flags));
static int ButtonWidgetCmd _ANSI_ARGS_((ClientData clientData,
Tcl_Interp *interp, int argc, char **argv));
static int ConfigureButton _ANSI_ARGS_((Tcl_Interp *interp,
TkButton *butPtr, int argc, char **argv,
int flags));
static void DestroyButton _ANSI_ARGS_((TkButton *butPtr));
/*
*--------------------------------------------------------------
*
* Tk_ButtonCmd, Tk_CheckbuttonCmd, Tk_LabelCmd, Tk_RadiobuttonCmd --
*
* These procedures are invoked to process the "button", "label",
* "radiobutton", and "checkbutton" Tcl commands. See the
* user documentation for details on what they do.
*
* Results:
* A standard Tcl result.
*
* Side effects:
* See the user documentation. These procedures are just wrappers;
* they call ButtonCreate to do all of the real work.
*
*--------------------------------------------------------------
*/
int
Tk_ButtonCmd(clientData, interp, argc, argv)
ClientData clientData; /* Main window associated with
* interpreter. */
Tcl_Interp *interp; /* Current interpreter. */
int argc; /* Number of arguments. */
char **argv; /* Argument strings. */
{
return ButtonCreate(clientData, interp, argc, argv, TYPE_BUTTON);
}
int
Tk_CheckbuttonCmd(clientData, interp, argc, argv)
ClientData clientData; /* Main window associated with
* interpreter. */
Tcl_Interp *interp; /* Current interpreter. */
int argc; /* Number of arguments. */
char **argv; /* Argument strings. */
{
return ButtonCreate(clientData, interp, argc, argv, TYPE_CHECK_BUTTON);
}
int
Tk_LabelCmd(clientData, interp, argc, argv)
ClientData clientData; /* Main window associated with
* interpreter. */
Tcl_Interp *interp; /* Current interpreter. */
int argc; /* Number of arguments. */
char **argv; /* Argument strings. */
{
return ButtonCreate(clientData, interp, argc, argv, TYPE_LABEL);
}
int
Tk_RadiobuttonCmd(clientData, interp, argc, argv)
ClientData clientData; /* Main window associated with
* interpreter. */
Tcl_Interp *interp; /* Current interpreter. */
int argc; /* Number of arguments. */
char **argv; /* Argument strings. */
{
return ButtonCreate(clientData, interp, argc, argv, TYPE_RADIO_BUTTON);
}
/*
*--------------------------------------------------------------
*
* ButtonCreate --
*
* This procedure does all the real work of implementing the
* "button", "label", "radiobutton", and "checkbutton" Tcl
* commands. See the user documentation for details on what it does.
*
* Results:
* A standard Tcl result.
*
* Side effects:
* See the user documentation.
*
*--------------------------------------------------------------
*/
static int
ButtonCreate(clientData, interp, argc, argv, type)
ClientData clientData; /* Main window associated with
* interpreter. */
Tcl_Interp *interp; /* Current interpreter. */
int argc; /* Number of arguments. */
char **argv; /* Argument strings. */
int type; /* Type of button to create: TYPE_LABEL,
* TYPE_BUTTON, TYPE_CHECK_BUTTON, or
* TYPE_RADIO_BUTTON. */
{
register TkButton *butPtr;
Tk_Window tkwin = (Tk_Window) clientData;
Tk_Window new;
if (argc < 2) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " pathName ?options?\"", (char *) NULL);
return TCL_ERROR;
}
/*
* Create the new window.
*/
new = Tk_CreateWindowFromPath(interp, tkwin, argv[1], (char *) NULL);
if (new == NULL) {
return TCL_ERROR;
}
Tk_SetClass(new, classNames[type]);
butPtr = TkpCreateButton(new);
TkSetClassProcs(new, &tkpButtonProcs, (ClientData) butPtr);
/*
* Initialize the data structure for the button.
*/
butPtr->tkwin = new;
butPtr->display = Tk_Display(new);
butPtr->widgetCmd = Tcl_CreateCommand(interp, Tk_PathName(butPtr->tkwin),
ButtonWidgetCmd, (ClientData) butPtr, ButtonCmdDeletedProc);
butPtr->interp = interp;
butPtr->type = type;
butPtr->text = NULL;
butPtr->underline = -1;
butPtr->textVarName = NULL;
butPtr->bitmap = None;
butPtr->imageString = NULL;
butPtr->image = NULL;
butPtr->selectImageString = NULL;
butPtr->selectImage = NULL;
butPtr->state = tkNormalUid;
butPtr->normalBorder = NULL;
butPtr->activeBorder = NULL;
butPtr->borderWidth = 0;
butPtr->relief = TK_RELIEF_FLAT;
butPtr->highlightWidth = 0;
butPtr->highlightBorder = NULL;
butPtr->highlightColorPtr = NULL;
butPtr->inset = 0;
butPtr->tkfont = NULL;
butPtr->normalFg = NULL;
butPtr->activeFg = NULL;
butPtr->disabledFg = NULL;
butPtr->normalTextGC = None;
butPtr->activeTextGC = None;
butPtr->gray = None;
butPtr->disabledGC = None;
butPtr->copyGC = None;
butPtr->widthString = NULL;
butPtr->heightString = NULL;
butPtr->width = 0;
butPtr->height = 0;
butPtr->wrapLength = 0;
butPtr->padX = 0;
butPtr->padY = 0;
butPtr->anchor = TK_ANCHOR_CENTER;
butPtr->justify = TK_JUSTIFY_CENTER;
butPtr->textLayout = NULL;
butPtr->indicatorOn = 0;
butPtr->selectBorder = NULL;
butPtr->indicatorSpace = 0;
butPtr->indicatorDiameter = 0;
butPtr->defaultState = tkDisabledUid;
butPtr->selVarName = NULL;
butPtr->onValue = NULL;
butPtr->offValue = NULL;
butPtr->cursor = None;
butPtr->command = NULL;
butPtr->takeFocus = NULL;
butPtr->flags = 0;
#ifdef SCM_CODE
butPtr->env = NULL;
butPtr->string = 0;
#endif
Tk_CreateEventHandler(butPtr->tkwin,
ExposureMask|StructureNotifyMask|FocusChangeMask,
ButtonEventProc, (ClientData) butPtr);
if (ConfigureButton(interp, butPtr, argc - 2, argv + 2,
configFlags[type]) != TCL_OK) {
Tk_DestroyWindow(butPtr->tkwin);
return TCL_ERROR;
}
#ifdef STk_CODE
STk_sharp_dot_result(interp, Tk_PathName(butPtr->tkwin));
#else
interp->result = Tk_PathName(butPtr->tkwin);
#endif
return TCL_OK;
}
/*
*--------------------------------------------------------------
*
* ButtonWidgetCmd --
*
* This procedure 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
ButtonWidgetCmd(clientData, interp, argc, argv)
ClientData clientData; /* Information about button widget. */
Tcl_Interp *interp; /* Current interpreter. */
int argc; /* Number of arguments. */
char **argv; /* Argument strings. */
{
register TkButton *butPtr = (TkButton *) clientData;
int result = TCL_OK;
size_t length;
int c;
#ifdef SCM_CODE
int flag;
#endif
if (argc < 2) {
sprintf(interp->result,
"wrong # args: should be \"%.50s option ?arg arg ...?\"",
argv[0]);
return TCL_ERROR;
}
Tcl_Preserve((ClientData) butPtr);
c = argv[1][0];
length = strlen(argv[1]);
if ((c == 'c') && (strncmp(argv[1], "cget", length) == 0)
&& (length >= 2)) {
if (argc != 3) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " cget option\"",
(char *) NULL);
goto error;
}
result = Tk_ConfigureValue(interp, butPtr->tkwin, tkpButtonConfigSpecs,
(char *) butPtr, argv[2], configFlags[butPtr->type]);
} else if ((c == 'c') && (strncmp(argv[1], "configure", length) == 0)
&& (length >= 2)) {
if (argc == 2) {
result = Tk_ConfigureInfo(interp, butPtr->tkwin,
tkpButtonConfigSpecs, (char *) butPtr, (char *) NULL,
configFlags[butPtr->type]);
} else if (argc == 3) {
result = Tk_ConfigureInfo(interp, butPtr->tkwin,
tkpButtonConfigSpecs, (char *) butPtr, argv[2],
configFlags[butPtr->type]);
} else {
result = ConfigureButton(interp, butPtr, argc-2, argv+2,
configFlags[butPtr->type] | TK_CONFIG_ARGV_ONLY);
}
} else if ((c == 'd') && (strncmp(argv[1], "deselect", length) == 0)
&& (butPtr->type >= TYPE_CHECK_BUTTON)) {
if (argc > 2) {
sprintf(interp->result,
"wrong # args: should be \"%.50s deselect\"",
argv[0]);
goto error;
}
#ifdef SCM_CODE
flag = (butPtr->string)? STk_STRINGIFY : 0;
#endif
if (butPtr->type == TYPE_CHECK_BUTTON) {
#ifdef SCM_CODE
if (STk_tcl_setvar(butPtr->selVarName, butPtr->offValue,
flag, butPtr->env) == NULL) {
#else
if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->offValue,
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
#endif
result = TCL_ERROR;
}
} else if (butPtr->flags & SELECTED) {
#ifdef SCM_CODE
if (STk_tcl_setvar(butPtr->selVarName, "#t",
flag, butPtr->env) == NULL) {
#else
if (Tcl_SetVar(interp, butPtr->selVarName, "",
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
#endif
result = TCL_ERROR;
};
}
} else if ((c == 'f') && (strncmp(argv[1], "flash", length) == 0)
&& (butPtr->type != TYPE_LABEL)) {
int i;
if (argc > 2) {
sprintf(interp->result,
"wrong # args: should be \"%.50s flash\"",
argv[0]);
goto error;
}
if (butPtr->state != tkDisabledUid) {
for (i = 0; i < 4; i++) {
butPtr->state = (butPtr->state == tkNormalUid)
? tkActiveUid : tkNormalUid;
Tk_SetBackgroundFromBorder(butPtr->tkwin,
(butPtr->state == tkActiveUid) ? butPtr->activeBorder
: butPtr->normalBorder);
TkpDisplayButton((ClientData) butPtr);
/*
* Special note: must cancel any existing idle handler
* for TkpDisplayButton; it's no longer needed, and TkpDisplayButton
* cleared the REDRAW_PENDING flag.
*/
Tcl_CancelIdleCall(TkpDisplayButton, (ClientData) butPtr);
XFlush(butPtr->display);
Tcl_Sleep(50);
}
}
} else if ((c == 'i') && (strncmp(argv[1], "invoke", length) == 0)
&& (butPtr->type > TYPE_LABEL)) {
if (argc > 2) {
sprintf(interp->result,
"wrong # args: should be \"%.50s invoke\"",
argv[0]);
goto error;
}
if (butPtr->state != tkDisabledUid) {
result = TkInvokeButton(butPtr);
}
} else if ((c == 's') && (strncmp(argv[1], "select", length) == 0)
&& (butPtr->type >= TYPE_CHECK_BUTTON)) {
if (argc > 2) {
sprintf(interp->result,
"wrong # args: should be \"%.50s select\"",
argv[0]);
goto error;
}
#ifdef SCM_CODE
if (STk_tcl_setvar(butPtr->selVarName, butPtr->onValue,
((butPtr->string)? STk_STRINGIFY:0),
butPtr->env) == NULL) {
#else
if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->onValue,
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
#endif
result = TCL_ERROR;
}
} else if ((c == 't') && (strncmp(argv[1], "toggle", length) == 0)
&& (length >= 2) && (butPtr->type == TYPE_CHECK_BUTTON)) {
if (argc > 2) {
sprintf(interp->result,
"wrong # args: should be \"%.50s toggle\"",
argv[0]);
goto error;
}
if (butPtr->flags & SELECTED) {
#ifdef SCM_CODE
if (STk_tcl_setvar(butPtr->selVarName, butPtr->offValue,
((butPtr->string)? STk_STRINGIFY:0),
butPtr->env) == NULL) {
#else
if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->offValue,
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
#endif
result = TCL_ERROR;
}
} else {
#ifdef SCM_CODE
if (STk_tcl_setvar(butPtr->selVarName, butPtr->onValue,
((butPtr->string)? STk_STRINGIFY:0),
butPtr->env) == NULL) {
#else
if (Tcl_SetVar(interp, butPtr->selVarName, butPtr->onValue,
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
#endif
result = TCL_ERROR;
}
}
} else {
sprintf(interp->result,
"bad option \"%.50s\": must be %s", argv[1],
optionStrings[butPtr->type]);
goto error;
}
Tcl_Release((ClientData) butPtr);
return result;
error:
Tcl_Release((ClientData) butPtr);
return TCL_ERROR;
}
/*
*----------------------------------------------------------------------
*
* DestroyButton --
*
* This procedure is invoked by Tcl_EventuallyFree or Tcl_Release
* to clean up the internal structure of a button at a safe time
* (when no-one is using it anymore).
*
* Results:
* None.
*
* Side effects:
* Everything associated with the widget is freed up.
*
*----------------------------------------------------------------------
*/
static void
DestroyButton(butPtr)
TkButton *butPtr; /* Info about button widget. */
{
/*
* Free up all the stuff that requires special handling, then
* let Tk_FreeOptions handle all the standard option-related
* stuff.
*/
if (butPtr->textVarName != NULL) {
Tcl_UntraceVar(butPtr->interp, butPtr->textVarName,
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
ButtonTextVarProc, (ClientData) butPtr);
}
if (butPtr->image != NULL) {
Tk_FreeImage(butPtr->image);
}
if (butPtr->selectImage != NULL) {
Tk_FreeImage(butPtr->selectImage);
}
if (butPtr->normalTextGC != None) {
Tk_FreeGC(butPtr->display, butPtr->normalTextGC);
}
if (butPtr->activeTextGC != None) {
Tk_FreeGC(butPtr->display, butPtr->activeTextGC);
}
if (butPtr->gray != None) {
Tk_FreeBitmap(butPtr->display, butPtr->gray);
}
if (butPtr->disabledGC != None) {
Tk_FreeGC(butPtr->display, butPtr->disabledGC);
}
if (butPtr->copyGC != None) {
Tk_FreeGC(butPtr->display, butPtr->copyGC);
}
if (butPtr->selVarName != NULL) {
Tcl_UntraceVar(butPtr->interp, butPtr->selVarName,
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
ButtonVarProc, (ClientData) butPtr);
}
Tk_FreeTextLayout(butPtr->textLayout);
Tk_FreeOptions(tkpButtonConfigSpecs, (char *) butPtr, butPtr->display,
configFlags[butPtr->type]);
Tcl_EventuallyFree((ClientData)butPtr, TCL_DYNAMIC);
}
/*
*----------------------------------------------------------------------
*
* ConfigureButton --
*
* This procedure is called to process an argv/argc list, plus
* the Tk option database, in order to configure (or
* reconfigure) a button widget.
*
* Results:
* The return value is a standard Tcl result. If TCL_ERROR is
* returned, then interp->result contains an error message.
*
* Side effects:
* Configuration information, such as text string, colors, font,
* etc. get set for butPtr; old resources get freed, if there
* were any. The button is redisplayed.
*
*----------------------------------------------------------------------
*/
static int
ConfigureButton(interp, butPtr, argc, argv, flags)
Tcl_Interp *interp; /* Used for error reporting. */
register TkButton *butPtr; /* Information about widget; may or may
* not already have values for some fields. */
int argc; /* Number of valid entries in argv. */
char **argv; /* Arguments. */
int flags; /* Flags to pass to Tk_ConfigureWidget. */
{
Tk_Image image;
/*
* Eliminate any existing trace on variables monitored by the button.
*/
if (butPtr->textVarName != NULL) {
Tcl_UntraceVar(interp, butPtr->textVarName,
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
ButtonTextVarProc, (ClientData) butPtr);
}
if (butPtr->selVarName != NULL) {
Tcl_UntraceVar(interp, butPtr->selVarName,
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
ButtonVarProc, (ClientData) butPtr);
}
if (Tk_ConfigureWidget(interp, butPtr->tkwin, tkpButtonConfigSpecs,
argc, argv, (char *) butPtr, flags) != TCL_OK) {
return TCL_ERROR;
}
/*
* A few options need special processing, such as setting the
* background from a 3-D border, or filling in complicated
* defaults that couldn't be specified to Tk_ConfigureWidget.
*/
if ((butPtr->state == tkActiveUid) && !Tk_StrictMotif(butPtr->tkwin)) {
Tk_SetBackgroundFromBorder(butPtr->tkwin, butPtr->activeBorder);
} else {
Tk_SetBackgroundFromBorder(butPtr->tkwin, butPtr->normalBorder);
if ((butPtr->state != tkNormalUid) && (butPtr->state != tkActiveUid)
&& (butPtr->state != tkDisabledUid)) {
Tcl_AppendResult(interp, "bad state value \"", butPtr->state,
"\": must be normal, active, or disabled", (char *) NULL);
butPtr->state = tkNormalUid;
return TCL_ERROR;
}
}
if ((butPtr->defaultState != tkActiveUid)
&& (butPtr->defaultState != tkDisabledUid)
&& (butPtr->defaultState != tkNormalUid)) {
Tcl_AppendResult(interp, "bad -default value \"", butPtr->defaultState,
"\": must be normal, active, or disabled", (char *) NULL);
butPtr->defaultState = tkDisabledUid;
return TCL_ERROR;
}
if (butPtr->highlightWidth < 0) {
butPtr->highlightWidth = 0;
}
if (butPtr->padX < 0) {
butPtr->padX = 0;
}
if (butPtr->padY < 0) {
butPtr->padY = 0;
}
if (butPtr->type >= TYPE_CHECK_BUTTON) {
char *value;
if (butPtr->selVarName == NULL) {
#ifdef BGLK_CODE
butPtr->selVarName = (char *) ckalloc_atomic((unsigned)
#else
butPtr->selVarName = (char *) ckalloc((unsigned)
(strlen(Tk_Name(butPtr->tkwin)) + 1));
#endif
strcpy(butPtr->selVarName, Tk_Name(butPtr->tkwin));
}
/*
* Select the button if the associated variable has the
* appropriate value, initialize the variable if it doesn't
* exist, then set a trace on the variable to monitor future
* changes to its value.
*/
#ifdef SCM_CODE
value = STk_tcl_getvar(butPtr->selVarName, butPtr->env);
#else
value = Tcl_GetVar(interp, butPtr->selVarName, TCL_GLOBAL_ONLY);
#endif
butPtr->flags &= ~SELECTED;
if (value != NULL) {
if (strcmp(value, butPtr->onValue) == 0) {
butPtr->flags |= SELECTED;
}
} else {
#ifdef SCM_CODE
if (STk_tcl_setvar(butPtr->selVarName,
(butPtr->type == TYPE_CHECK_BUTTON) ? butPtr->offValue : "#f",
((butPtr->string)? STk_STRINGIFY:0), butPtr->env) == NULL) {
#else
if (Tcl_SetVar(interp, butPtr->selVarName,
(butPtr->type == TYPE_CHECK_BUTTON) ? butPtr->offValue : "",
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
#endif
return TCL_ERROR;
}
}
Tcl_TraceVar(interp, butPtr->selVarName,
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
ButtonVarProc, (ClientData) butPtr);
}
/*
* Get the images for the widget, if there are any. Allocate the
* new images before freeing the old ones, so that the reference
* counts don't go to zero and cause image data to be discarded.
*/
if (butPtr->imageString != NULL) {
image = Tk_GetImage(butPtr->interp, butPtr->tkwin,
butPtr->imageString, ButtonImageProc, (ClientData) butPtr);
if (image == NULL) {
return TCL_ERROR;
}
} else {
image = NULL;
}
if (butPtr->image != NULL) {
Tk_FreeImage(butPtr->image);
}
butPtr->image = image;
if (butPtr->selectImageString != NULL) {
image = Tk_GetImage(butPtr->interp, butPtr->tkwin,
butPtr->selectImageString, ButtonSelectImageProc,
(ClientData) butPtr);
if (image == NULL) {
return TCL_ERROR;
}
} else {
image = NULL;
}
if (butPtr->selectImage != NULL) {
Tk_FreeImage(butPtr->selectImage);
}
butPtr->selectImage = image;
if ((butPtr->image == NULL) && (butPtr->bitmap == None)
&& (butPtr->textVarName != NULL)) {
/*
* The button must display the value of a variable: set up a trace
* on the variable's value, create the variable if it doesn't
* exist, and fetch its current value.
*/
char *value;
#ifdef SCM_CODE
value = STk_tcl_getvar(butPtr->textVarName, butPtr->env);
#else
value = Tcl_GetVar(interp, butPtr->textVarName, TCL_GLOBAL_ONLY);
#endif
if (value == NULL) {
#ifdef SCM_CODE
if (STk_tcl_setvar(butPtr->textVarName, butPtr->text,
((butPtr->string)? STk_STRINGIFY:0),
butPtr->env) == NULL) {
#else
if (Tcl_SetVar(interp, butPtr->textVarName, butPtr->text,
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
#endif
return TCL_ERROR;
}
} else {
if (butPtr->text != NULL) {
ckfree(butPtr->text);
}
#ifdef BGLK_CODE
butPtr->text = (char *) ckalloc_atomic((unsigned) (strlen(value) + 1));
#else
butPtr->text = (char *) ckalloc((unsigned) (strlen(value) + 1));
#endif
strcpy(butPtr->text, value);
}
Tcl_TraceVar(interp, butPtr->textVarName,
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
ButtonTextVarProc, (ClientData) butPtr);
}
if ((butPtr->bitmap != None) || (butPtr->image != NULL)) {
if (Tk_GetPixels(interp, butPtr->tkwin, butPtr->widthString,
&butPtr->width) != TCL_OK) {
widthError:
Tcl_AddErrorInfo(interp, "\n (processing -width option)");
return TCL_ERROR;
}
if (Tk_GetPixels(interp, butPtr->tkwin, butPtr->heightString,
&butPtr->height) != TCL_OK) {
heightError:
Tcl_AddErrorInfo(interp, "\n (processing -height option)");
return TCL_ERROR;
}
} else {
if (Tcl_GetInt(interp, butPtr->widthString, &butPtr->width)
!= TCL_OK) {
goto widthError;
}
if (Tcl_GetInt(interp, butPtr->heightString, &butPtr->height)
!= TCL_OK) {
goto heightError;
}
}
TkButtonWorldChanged((ClientData) butPtr);
return TCL_OK;
}
/*
*---------------------------------------------------------------------------
*
* TkButtonWorldChanged --
*
* This procedure 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:
* Button will be relayed out and redisplayed.
*
*---------------------------------------------------------------------------
*/
void
TkButtonWorldChanged(instanceData)
ClientData instanceData; /* Information about widget. */
{
XGCValues gcValues;
GC newGC;
unsigned long mask;
TkButton *butPtr;
butPtr = (TkButton *) instanceData;
/*
* Recompute GCs.
*/
gcValues.font = Tk_FontId(butPtr->tkfont);
gcValues.foreground = butPtr->normalFg->pixel;
gcValues.background = Tk_3DBorderColor(butPtr->normalBorder)->pixel;
/*
* Note: GraphicsExpose events are disabled in normalTextGC because it's
* used to copy stuff from an off-screen pixmap onto the screen (we know
* that there's no problem with obscured areas).
*/
gcValues.graphics_exposures = False;
mask = GCForeground | GCBackground | GCFont | GCGraphicsExposures;
newGC = Tk_GetGC(butPtr->tkwin, mask, &gcValues);
if (butPtr->normalTextGC != None) {
Tk_FreeGC(butPtr->display, butPtr->normalTextGC);
}
butPtr->normalTextGC = newGC;
if (butPtr->activeFg != NULL) {
gcValues.font = Tk_FontId(butPtr->tkfont);
gcValues.foreground = butPtr->activeFg->pixel;
gcValues.background = Tk_3DBorderColor(butPtr->activeBorder)->pixel;
mask = GCForeground | GCBackground | GCFont;
newGC = Tk_GetGC(butPtr->tkwin, mask, &gcValues);
if (butPtr->activeTextGC != None) {
Tk_FreeGC(butPtr->display, butPtr->activeTextGC);
}
butPtr->activeTextGC = newGC;
}
if (butPtr->type != TYPE_LABEL) {
gcValues.font = Tk_FontId(butPtr->tkfont);
gcValues.background = Tk_3DBorderColor(butPtr->normalBorder)->pixel;
if ((butPtr->disabledFg != NULL) && (butPtr->imageString == NULL)) {
gcValues.foreground = butPtr->disabledFg->pixel;
mask = GCForeground | GCBackground | GCFont;
} else {
gcValues.foreground = gcValues.background;
mask = GCForeground;
if (butPtr->gray == None) {
butPtr->gray = Tk_GetBitmap(NULL, butPtr->tkwin,
Tk_GetUid("gray50"));
}
if (butPtr->gray != None) {
gcValues.fill_style = FillStippled;
gcValues.stipple = butPtr->gray;
mask |= GCFillStyle | GCStipple;
}
}
newGC = Tk_GetGC(butPtr->tkwin, mask, &gcValues);
if (butPtr->disabledGC != None) {
Tk_FreeGC(butPtr->display, butPtr->disabledGC);
}
butPtr->disabledGC = newGC;
}
if (butPtr->copyGC == None) {
butPtr->copyGC = Tk_GetGC(butPtr->tkwin, 0, &gcValues);
}
TkpComputeButtonGeometry(butPtr);
/*
* Lastly, arrange for the button to be redisplayed.
*/
if (Tk_IsMapped(butPtr->tkwin) && !(butPtr->flags & REDRAW_PENDING)) {
Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr);
butPtr->flags |= REDRAW_PENDING;
}
}
/*
*--------------------------------------------------------------
*
* ButtonEventProc --
*
* This procedure is invoked by the Tk dispatcher for various
* events on buttons.
*
* Results:
* None.
*
* Side effects:
* When the window gets deleted, internal structures get
* cleaned up. When it gets exposed, it is redisplayed.
*
*--------------------------------------------------------------
*/
static void
ButtonEventProc(clientData, eventPtr)
ClientData clientData; /* Information about window. */
XEvent *eventPtr; /* Information about event. */
{
TkButton *butPtr = (TkButton *) clientData;
if ((eventPtr->type == Expose) && (eventPtr->xexpose.count == 0)) {
goto redraw;
} else if (eventPtr->type == ConfigureNotify) {
/*
* Must redraw after size changes, since layout could have changed
* and borders will need to be redrawn.
*/
goto redraw;
} else if (eventPtr->type == DestroyNotify) {
TkpDestroyButton(butPtr);
if (butPtr->tkwin != NULL) {
butPtr->tkwin = NULL;
Tcl_DeleteCommandFromToken(butPtr->interp, butPtr->widgetCmd);
}
if (butPtr->flags & REDRAW_PENDING) {
Tcl_CancelIdleCall(TkpDisplayButton, (ClientData) butPtr);
}
DestroyButton(butPtr);
} else if (eventPtr->type == FocusIn) {
if (eventPtr->xfocus.detail != NotifyInferior) {
butPtr->flags |= GOT_FOCUS;
if (butPtr->highlightWidth > 0) {
goto redraw;
}
}
} else if (eventPtr->type == FocusOut) {
if (eventPtr->xfocus.detail != NotifyInferior) {
butPtr->flags &= ~GOT_FOCUS;
if (butPtr->highlightWidth > 0) {
goto redraw;
}
}
}
return;
redraw:
if ((butPtr->tkwin != NULL) && !(butPtr->flags & REDRAW_PENDING)) {
Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr);
butPtr->flags |= REDRAW_PENDING;
}
}
/*
*----------------------------------------------------------------------
*
* ButtonCmdDeletedProc --
*
* This procedure 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
ButtonCmdDeletedProc(clientData)
ClientData clientData; /* Pointer to widget record for widget. */
{
TkButton *butPtr = (TkButton *) clientData;
Tk_Window tkwin = butPtr->tkwin;
/*
* This procedure 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 procedure
* destroys the widget.
*/
if (tkwin != NULL) {
butPtr->tkwin = NULL;
Tk_DestroyWindow(tkwin);
}
}
/*
*----------------------------------------------------------------------
*
* TkInvokeButton --
*
* This procedure is called to carry out the actions associated
* with a button, such as invoking a Tcl command or setting a
* variable. This procedure is invoked, for example, when the
* button is invoked via the mouse.
*
* Results:
* A standard Tcl return value. Information is also left in
* interp->result.
*
* Side effects:
* Depends on the button and its associated command.
*
*----------------------------------------------------------------------
*/
int
TkInvokeButton(butPtr)
register TkButton *butPtr; /* Information about button. */
{
#ifdef SCM_CODE
int flag = (butPtr->string? STk_STRINGIFY : 0)|TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG;
#endif
if (butPtr->type == TYPE_CHECK_BUTTON) {
if (butPtr->flags & SELECTED) {
#ifdef SCM_CODE
if (STk_tcl_setvar(butPtr->selVarName, butPtr->offValue,
flag, butPtr->env) == NULL) {
#else
if (Tcl_SetVar(butPtr->interp, butPtr->selVarName, butPtr->offValue,
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
#endif
return TCL_ERROR;
}
} else {
#ifdef SCM_CODE
if (STk_tcl_setvar(butPtr->selVarName, butPtr->onValue,
flag, butPtr->env) == NULL) {
#else
if (Tcl_SetVar(butPtr->interp, butPtr->selVarName, butPtr->onValue,
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
#endif
return TCL_ERROR;
}
}
} else if (butPtr->type == TYPE_RADIO_BUTTON) {
#ifdef SCM_CODE
if (STk_tcl_setvar(butPtr->selVarName, butPtr->onValue,
flag, butPtr->env) == NULL) {
#else
if (Tcl_SetVar(butPtr->interp, butPtr->selVarName, butPtr->onValue,
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
#endif
return TCL_ERROR;
}
}
if ((butPtr->type != TYPE_LABEL) && (butPtr->command != NULL)) {
return TkCopyAndGlobalEval(butPtr->interp, butPtr->command);
}
return TCL_OK;
}
/*
*--------------------------------------------------------------
*
* ButtonVarProc --
*
* This procedure is invoked when someone changes the
* state variable associated with a radio button. Depending
* on the new value of the button's variable, the button
* may be selected or deselected.
*
* Results:
* NULL is always returned.
*
* Side effects:
* The button may become selected or deselected.
*
*--------------------------------------------------------------
*/
/* ARGSUSED */
static char *
ButtonVarProc(clientData, interp, name1, name2, flags)
ClientData clientData; /* Information about button. */
Tcl_Interp *interp; /* Interpreter containing variable. */
char *name1; /* Name of variable. */
char *name2; /* Second part of variable name. */
int flags; /* Information about what happened. */
{
register TkButton *butPtr = (TkButton *) clientData;
char *value;
/*
* If the variable is being unset, then just re-establish the
* trace unless the whole interpreter is going away.
*/
if (flags & TCL_TRACE_UNSETS) {
butPtr->flags &= ~SELECTED;
if ((flags & TCL_TRACE_DESTROYED) && !(flags & TCL_INTERP_DESTROYED)) {
Tcl_TraceVar(interp, butPtr->selVarName,
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
ButtonVarProc, clientData);
}
goto redisplay;
}
/*
* Use the value of the variable to update the selected status of
* the button.
*/
#ifdef SCM_CODE
value = STk_tcl_getvar(butPtr->selVarName, butPtr->env);
#else
value = Tcl_GetVar(interp, butPtr->selVarName, TCL_GLOBAL_ONLY);
#endif
if (value == NULL) {
value = "";
}
if (strcmp(value, butPtr->onValue) == 0) {
if (butPtr->flags & SELECTED) {
return (char *) NULL;
}
butPtr->flags |= SELECTED;
} else if (butPtr->flags & SELECTED) {
butPtr->flags &= ~SELECTED;
} else {
return (char *) NULL;
}
redisplay:
if ((butPtr->tkwin != NULL) && Tk_IsMapped(butPtr->tkwin)
&& !(butPtr->flags & REDRAW_PENDING)) {
Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr);
butPtr->flags |= REDRAW_PENDING;
}
return (char *) NULL;
}
/*
*--------------------------------------------------------------
*
* ButtonTextVarProc --
*
* This procedure is invoked when someone changes the variable
* whose contents are to be displayed in a button.
*
* Results:
* NULL is always returned.
*
* Side effects:
* The text displayed in the button will change to match the
* variable.
*
*--------------------------------------------------------------
*/
/* ARGSUSED */
static char *
ButtonTextVarProc(clientData, interp, name1, name2, flags)
ClientData clientData; /* Information about button. */
Tcl_Interp *interp; /* Interpreter containing variable. */
char *name1; /* Not used. */
char *name2; /* Not used. */
int flags; /* Information about what happened. */
{
register TkButton *butPtr = (TkButton *) clientData;
char *value;
/*
* 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)) {
#ifdef SCM_CODE
STk_tcl_setvar(butPtr->textVarName, butPtr->text,
(butPtr->string? STk_STRINGIFY: 0), butPtr->env);
#else
Tcl_SetVar(interp, butPtr->textVarName, butPtr->text,
TCL_GLOBAL_ONLY);
#endif
Tcl_TraceVar(interp, butPtr->textVarName,
TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
ButtonTextVarProc, clientData);
}
return (char *) NULL;
}
#ifdef SCM_CODE
value = STk_tcl_getvar(butPtr->textVarName, butPtr->env);
#else
value = Tcl_GetVar(interp, butPtr->textVarName, TCL_GLOBAL_ONLY);
#endif
if (value == NULL) {
value = "";
}
if (butPtr->text != NULL) {
ckfree(butPtr->text);
}
#ifdef BGLK_CODE
butPtr->text = (char *) ckalloc_atomic((unsigned) (strlen(value) + 1));
#else
butPtr->text = (char *) ckalloc((unsigned) (strlen(value) + 1));
#endif
strcpy(butPtr->text, value);
TkpComputeButtonGeometry(butPtr);
if ((butPtr->tkwin != NULL) && Tk_IsMapped(butPtr->tkwin)
&& !(butPtr->flags & REDRAW_PENDING)) {
Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr);
butPtr->flags |= REDRAW_PENDING;
}
return (char *) NULL;
}
/*
*----------------------------------------------------------------------
*
* ButtonImageProc --
*
* This procedure is invoked by the image code whenever the manager
* for an image does something that affects the size of contents
* of an image displayed in a button.
*
* Results:
* None.
*
* Side effects:
* Arranges for the button to get redisplayed.
*
*----------------------------------------------------------------------
*/
static void
ButtonImageProc(clientData, x, y, width, height, imgWidth, imgHeight)
ClientData clientData; /* Pointer to widget record. */
int x, y; /* Upper left pixel (within image)
* that must be redisplayed. */
int width, height; /* Dimensions of area to redisplay
* (may be <= 0). */
int imgWidth, imgHeight; /* New dimensions of image. */
{
register TkButton *butPtr = (TkButton *) clientData;
if (butPtr->tkwin != NULL) {
TkpComputeButtonGeometry(butPtr);
if (Tk_IsMapped(butPtr->tkwin) && !(butPtr->flags & REDRAW_PENDING)) {
Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr);
butPtr->flags |= REDRAW_PENDING;
}
}
}
/*
*----------------------------------------------------------------------
*
* ButtonSelectImageProc --
*
* This procedure is invoked by the image code whenever the manager
* for an image does something that affects the size of contents
* of the image displayed in a button when it is selected.
*
* Results:
* None.
*
* Side effects:
* May arrange for the button to get redisplayed.
*
*----------------------------------------------------------------------
*/
static void
ButtonSelectImageProc(clientData, x, y, width, height, imgWidth, imgHeight)
ClientData clientData; /* Pointer to widget record. */
int x, y; /* Upper left pixel (within image)
* that must be redisplayed. */
int width, height; /* Dimensions of area to redisplay
* (may be <= 0). */
int imgWidth, imgHeight; /* New dimensions of image. */
{
register TkButton *butPtr = (TkButton *) clientData;
/*
* Don't recompute geometry: it's controlled by the primary image.
*/
if ((butPtr->flags & SELECTED) && (butPtr->tkwin != NULL)
&& Tk_IsMapped(butPtr->tkwin)
&& !(butPtr->flags & REDRAW_PENDING)) {
Tcl_DoWhenIdle(TkpDisplayButton, (ClientData) butPtr);
butPtr->flags |= REDRAW_PENDING;
}
}