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/*
* Smithsonian Astrophysical Observatory, Cambridge, MA, USA
* This code has been modified under the terms listed below and is made
* available under the same terms.
*/
/*
* Copyright 1998-2004 George A Howlett.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef _BLT_BIND_H
#define _BLT_BIND_H
#include <bltList.h>
typedef struct _Blt_BindTable *Blt_BindTable;
typedef ClientData (Blt_BindPickProc)(ClientData clientData, int x, int y,
ClientData *contextPtr);
typedef void (Blt_BindTagProc)(Blt_BindTable bindTable, ClientData object,
ClientData context, Blt_List list);
/*
* Binding structure information:
*/
struct _Blt_BindTable {
unsigned int flags;
Tk_BindingTable bindingTable;
/* Table of all bindings currently defined.
* NULL means that no bindings exist, so the
* table hasn't been created. Each "object"
* used for this table is either a Tk_Uid for
* a tag or the address of an item named by
* id. */
ClientData currentItem; /* The item currently containing the mouse
* pointer, or NULL if none. */
ClientData currentContext; /* One word indicating what kind of object was
* picked. */
ClientData newItem; /* The item that is about to become the
* current one, or NULL. This field is used
* to detect deletions of the new current item
* pointer that occur during Leave processing
* of the previous current tab. */
ClientData newContext; /* One-word indicating what kind of object was
* just picked. */
ClientData focusItem;
ClientData focusContext;
XEvent pickEvent; /* The event upon which the current choice of
* the current tab is based. Must be saved so
* that if the current item is deleted, we can
* pick another. */
int activePick; /* The pick event has been initialized so that
* we can repick it */
int state; /* Last known modifier state. Used to defer
* picking a new current object while buttons
* are down. */
ClientData clientData;
Tk_Window tkwin;
Blt_BindPickProc *pickProc; /* Routine to report the item the mouse is
* currently over. */
Blt_BindTagProc *tagProc; /* Routine to report tags picked items. */
};
extern void Blt_DestroyBindingTable(Blt_BindTable table);
extern Blt_BindTable Blt_CreateBindingTable(Tcl_Interp* interp,
Tk_Window tkwin, ClientData clientData, Blt_BindPickProc *pickProc,
Blt_BindTagProc *tagProc);
extern int Blt_ConfigureBindingsFromObj(Tcl_Interp* interp,
Blt_BindTable table, ClientData item, int objc, Tcl_Obj *const *objv);
extern void Blt_PickCurrentItem(Blt_BindTable table);
extern void Blt_DeleteBindings(Blt_BindTable table, ClientData object);
extern void Blt_MoveBindingTable(Blt_BindTable table, Tk_Window tkwin);
#define Blt_SetFocusItem(bindPtr, object, context) \
((bindPtr)->focusItem = (ClientData)(object),\
(bindPtr)->focusContext = (ClientData)(context))
#define Blt_SetCurrentItem(bindPtr, object, context) \
((bindPtr)->currentItem = (ClientData)(object),\
(bindPtr)->currentContext = (ClientData)(context))
#define Blt_GetCurrentItem(bindPtr) ((bindPtr)->currentItem)
#define Blt_GetCurrentContext(bindPtr) ((bindPtr)->currentContext)
#define Blt_GetLatestItem(bindPtr) ((bindPtr)->newItem)
#define Blt_GetBindingData(bindPtr) ((bindPtr)->clientData)
#endif /*_BLT_BIND_H*/
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