Tk Source Code

The mouse cursor is over the widget
and pressing a mouse button will cause some action to occur. (aka
.QW prelight
(Gnome),
.QW hot
(Windows),
.QW hover ).
























.IP \fBalternate\fR
A widget-specific alternate display format.
For example, used for checkbuttons and radiobuttons in the
.QW tristate
or
.QW mixed
state, and for buttons with \fB\-default active\fR.
.IP \fBbackground\fR
Windows and the Mac have a notion of an
.QW active
or foreground window.
The \fBbackground\fR state is set for widgets in a background window,
and cleared for those in the foreground window.
.IP \fBdisabled\fR
Widget is disabled under program control (aka
.QW unavailable ,
.QW inactive ).
.IP \fBfirst\fR
Widget is the first one in a container. Used for tab elements in a notebook.
.IP \fBfocus\fR
Widget has keyboard focus.
.IP \fBhover\fR
The mouse cursor is within the widget.
This is similar to the \fBactive\fP state;
it is used in some themes for widgets that
provide distinct visual feedback for
the active widget in addition to the active element
within the widget.
.IP \fBinvalid\fR
The widget's value is invalid.
(Potential uses: scale widget value out of bounds,
entry widget value failed validation.)
.IP \fBlast\fR
Widget is the last one in a container. Used for tab elements in a notebook.
.IP \fBleaf\fR
Widget is a leaf. Used in a treeview widget.
.IP \fBopen\fR
Widget is in the open state. Used in a treeview widget.
.IP \fBpressed\fR
Widget is being pressed (aka
.QW armed
in Motif).
.IP \fBreadonly\fR
Widget should not allow user modification.
.IP \fBselected\fR
.QW On ,
.QW true ,
or
.QW current
for things like checkbuttons and radiobuttons.
.IP \fBuser1\fR-\fBuser6\fR
Freely usable for other purposes
.PP
A \fIstate specification\fR or \fIstateSpec\fR is a list
of state names, optionally prefixed with an exclamation point (!)
indicating that the bit is off.
.SH EXAMPLES

 * Table of state names.
 */
static const struct {
    char name[12];
    int value;
} stateNames[] = {
    {"active", TTK_STATE_ACTIVE},		/* Mouse cursor is over widget or element */
    {"alternate", TTK_STATE_ALTERNATE},		/* Widget-specific alternate display style */
    {"background", TTK_STATE_BACKGROUND},	/* Top-level window lost focus (Mac,Win "inactive") */
    {"disabled", TTK_STATE_DISABLED},		/* Widget is disabled */
    {"first", TTK_STATE_FIRST},			/* First */
    {"focus", TTK_STATE_FOCUS},			/* Widget has keyboard focus */
    {"hover", TTK_STATE_HOVER},			/* Mouse cursor is over widget */
    {"invalid", TTK_STATE_INVALID},		/* Bad value */
    {"last", TTK_STATE_LAST},			/* Last */
    {"leaf", TTK_STATE_LEAF},			/* Leaf */
    {"open", TTK_STATE_OPEN},			/* Open */
    {"pressed", TTK_STATE_PRESSED},		/* Pressed or "armed" */
    {"readonly", TTK_STATE_READONLY},		/* Editing/modification disabled */
    {"selected", TTK_STATE_SELECTED},		/* "on", "true", "current", etc. */
    {"user1", TTK_STATE_USER1},		/* User-definable state */
    {"user2", TTK_STATE_USER2},		/* User-definable state */
    {"user3", TTK_STATE_USER3},		/* User-definable state */
    {"user4", TTK_STATE_USER4},		/* User-definable state */

#define TTK_STATE_HOVER		(1<<9)
#define TTK_STATE_USER6		(1<<10)
#define TTK_STATE_USER5		(1<<11)
#define TTK_STATE_USER4		(1<<12)
#define TTK_STATE_USER3		(1<<13)
#define TTK_STATE_USER2		(1<<14)
#define TTK_STATE_USER1		(1<<15)
#define TTK_STATE_OPEN		(1<<16)
#define TTK_STATE_LEAF		(1<<17)
#define TTK_STATE_FIRST		(1<<18)
#define TTK_STATE_LAST		(1<<19)

/* Maintenance note: if you get all the way to "USER1",
 * see tkstate.c
 */
typedef struct
{
    unsigned int onbits;	/* bits to turn on */

/*
 * Theme engine: private definitions.
 *
 * Copyright © 2004 Joe English.  Freely redistributable.
 */

#ifndef _TTKTHEMEINT
#define _TTKTHEMEINT

#include "ttkTheme.h"










typedef struct Ttk_TemplateNode_ Ttk_TemplateNode, *Ttk_LayoutTemplate;

MODULE_SCOPE Ttk_ElementClass *Ttk_GetElement(Ttk_Theme, const char *name);
MODULE_SCOPE const char *Ttk_ElementClassName(Ttk_ElementClass *);

MODULE_SCOPE void Ttk_ElementSize(
	Ttk_ElementClass *, Ttk_Style, void *recordPtr, Tk_OptionTable,