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/*
* tkTreeElem.h --
*
* This module is the header for elements in treectrl widgets.
*
* Copyright (c) 2002-2006 Tim Baker
*
* RCS: @(#) $Id: tkTreeElem.h,v 1.18 2006/09/05 21:56:15 treectrl Exp $
*/
typedef struct ElementType ElementType;
typedef struct Element Element;
typedef struct ElementArgs ElementArgs;
struct ElementArgs
{
TreeCtrl *tree;
Element *elem;
int state;
struct {
TreeItem item;
TreeItemColumn column;
} create;
struct {
int noop;
} delete;
struct {
int objc;
Tcl_Obj *CONST *objv;
int flagSelf;
} config;
struct {
int x;
int y;
int width;
int height;
#define STICKY_W 0x1000 /* These values must match ELF_STICKY_xxx */
#define STICKY_N 0x2000
#define STICKY_E 0x4000
#define STICKY_S 0x8000
int sticky;
Drawable drawable;
} display;
struct {
int fixedWidth;
int fixedHeight;
int maxWidth;
int maxHeight;
int width;
int height;
} needed;
struct {
int fixedWidth;
int height;
} height;
struct {
int flagTree;
int flagMaster;
int flagSelf;
} change;
struct {
int state1;
int state2;
} states;
struct {
Tcl_Obj *obj;
} actual;
struct {
int visible;
} screen;
};
struct ElementType
{
char *name; /* "image", "text" */
int size; /* size of an Element */
Tk_OptionSpec *optionSpecs;
Tk_OptionTable optionTable;
int (*createProc)(ElementArgs *args);
void (*deleteProc)(ElementArgs *args);
int (*configProc)(ElementArgs *args);
void (*displayProc)(ElementArgs *args);
void (*neededProc)(ElementArgs *args);
void (*heightProc)(ElementArgs *args);
int (*changeProc)(ElementArgs *args);
int (*stateProc)(ElementArgs *args);
int (*undefProc)(ElementArgs *args);
int (*actualProc)(ElementArgs *args);
void (*onScreenProc)(ElementArgs *args);
ElementType *next;
};
/* list of these for each style */
struct Element
{
Tk_Uid name; /* "elem2", "eText" etc */
ElementType *typePtr;
Element *master; /* NULL if this is master */
/* type-specific data here */
};
extern ElementType elemTypeBitmap;
extern ElementType elemTypeBorder;
extern ElementType elemTypeCheckButton;
extern ElementType elemTypeImage;
extern ElementType elemTypeRect;
extern ElementType elemTypeText;
extern ElementType elemTypeWindow;
#define ELEMENT_TYPE_MATCHES(t1,t2) ((t1)->name == (t2)->name)
/***** ***** *****/
extern int Element_GetSortData(TreeCtrl *tree, Element *elem, int type, long *lv, double *dv, char **sv);
typedef struct TreeIterate_ *TreeIterate;
extern int TreeElement_TypeFromObj(TreeCtrl *tree, Tcl_Obj *objPtr, ElementType **typePtrPtr);
extern void Tree_RedrawElement(TreeCtrl *tree, TreeItem item, Element *elem);
extern TreeIterate Tree_ElementIterateBegin(TreeCtrl *tree, ElementType *elemTypePtr);
extern TreeIterate Tree_ElementIterateNext(TreeIterate iter_);
extern Element *Tree_ElementIterateGet(TreeIterate iter_);
extern void Tree_ElementIterateChanged(TreeIterate iter_, int mask);
extern void Tree_ElementChangedItself(TreeCtrl *tree, TreeItem item,
TreeItemColumn column, Element *elem, int mask);
typedef struct TreeCtrlStubs TreeCtrlStubs;
struct TreeCtrlStubs
{
int (*TreeCtrl_RegisterElementType)(Tcl_Interp *interp, ElementType *typePtr);
void (*Tree_RedrawElement)(TreeCtrl *tree, TreeItem item, Element *elem);
TreeIterate (*Tree_ElementIterateBegin)(TreeCtrl *tree, ElementType *elemTypePtr);
TreeIterate (*Tree_ElementIterateNext)(TreeIterate iter_);
Element *(*Tree_ElementIterateGet)(TreeIterate iter_);
void (*Tree_ElementIterateChanged)(TreeIterate iter_, int mask);
void (*PerStateInfo_Free)(TreeCtrl *tree, PerStateType *typePtr, PerStateInfo *pInfo);
int (*PerStateInfo_FromObj)(TreeCtrl *tree, StateFromObjProc proc, PerStateType *typePtr, PerStateInfo *pInfo);
PerStateData *(*PerStateInfo_ForState)(TreeCtrl *tree, PerStateType *typePtr, PerStateInfo *pInfo, int state, int *match);
Tcl_Obj *(*PerStateInfo_ObjForState)(TreeCtrl *tree, PerStateType *typePtr, PerStateInfo *pInfo, int state, int *match);
int (*PerStateInfo_Undefine)(TreeCtrl *tree, PerStateType *typePtr, PerStateInfo *pInfo, int state);
PerStateType *pstBoolean;
int (*PerStateBoolean_ForState)(TreeCtrl *tree, PerStateInfo *pInfo, int state, int *match);
void (*PSTSave)(PerStateInfo *pInfo, PerStateInfo *pSave);
void (*PSTRestore)(TreeCtrl *tree, PerStateType *typePtr, PerStateInfo *pInfo, PerStateInfo *pSave);
int (*TreeStateFromObj)(TreeCtrl *tree, Tcl_Obj *obj, int *stateOff, int *stateOn);
int (*BooleanCO_Init)(Tk_OptionSpec *optionTable, CONST char *optionName);
int (*StringTableCO_Init)(Tk_OptionSpec *optionTable, CONST char *optionName, CONST char **tablePtr);
};
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