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/*
* tkTreeMarquee.c --
*
* This module implements the selection marquee for treectrl widgets.
*
* Copyright (c) 2002-2004 Tim Baker
*
* RCS: @(#) $Id: tkTreeMarquee.c,v 1.3 2004/07/30 21:12:18 treectrl Exp $
*/
#include "tkTreeCtrl.h"
typedef struct Marquee Marquee;
struct Marquee
{
TreeCtrl *tree;
Tk_OptionTable optionTable;
int visible;
int x1, y1, x2, y2;
int onScreen;
int sx, sy;
};
#define MARQ_CONF_VISIBLE 0x0001
static Tk_OptionSpec optionSpecs[] = {
{TK_OPTION_BOOLEAN, "-visible", (char *) NULL, (char *) NULL,
"0", -1, Tk_Offset(Marquee, visible),
0, (ClientData) NULL, MARQ_CONF_VISIBLE},
{TK_OPTION_END, (char *) NULL, (char *) NULL, (char *) NULL,
(char *) NULL, 0, -1, 0, 0, 0}
};
int TreeMarquee_Init(TreeCtrl *tree)
{
Marquee *marquee;
marquee = (Marquee *) ckalloc(sizeof(Marquee));
memset(marquee, '\0', sizeof(Marquee));
marquee->tree = tree;
marquee->optionTable = Tk_CreateOptionTable(tree->interp, optionSpecs);
if (Tk_InitOptions(tree->interp, (char *) marquee, marquee->optionTable,
tree->tkwin) != TCL_OK)
{
WFREE(marquee, Marquee);
return TCL_ERROR;
}
tree->marquee = (TreeMarquee) marquee;
return TCL_OK;
}
void TreeMarquee_Free(TreeMarquee marquee_)
{
Marquee *marquee = (Marquee *) marquee_;
Tk_FreeConfigOptions((char *) marquee, marquee->optionTable,
marquee->tree->tkwin);
WFREE(marquee, Marquee);
}
void TreeMarquee_Display(TreeMarquee marquee_)
{
Marquee *marquee = (Marquee *) marquee_;
TreeCtrl *tree = marquee->tree;
if (!marquee->onScreen && marquee->visible)
{
marquee->sx = 0 - tree->xOrigin;
marquee->sy = 0 - tree->yOrigin;
TreeMarquee_Draw(marquee_, Tk_WindowId(tree->tkwin), marquee->sx, marquee->sy);
marquee->onScreen = TRUE;
}
}
void TreeMarquee_Undisplay(TreeMarquee marquee_)
{
Marquee *marquee = (Marquee *) marquee_;
TreeCtrl *tree = marquee->tree;
if (marquee->onScreen)
{
TreeMarquee_Draw(marquee_, Tk_WindowId(tree->tkwin), marquee->sx, marquee->sy);
marquee->onScreen = FALSE;
}
}
void TreeMarquee_Draw(TreeMarquee marquee_, Drawable drawable, int x1, int y1)
{
Marquee *marquee = (Marquee *) marquee_;
TreeCtrl *tree = marquee->tree;
int x, y, w, h;
DotState dotState;
/* if (!marquee->visible)
return; */
x = MIN(marquee->x1, marquee->x2);
w = abs(marquee->x1 - marquee->x2) + 1;
y = MIN(marquee->y1, marquee->y2);
h = abs(marquee->y1 - marquee->y2) + 1;
DotRect_Setup(tree, drawable, &dotState);
DotRect_Draw(&dotState, x1 + x, y1 + y, w, h);
DotRect_Restore(&dotState);
}
static int Marquee_Config(Marquee *marquee, int objc, Tcl_Obj *CONST objv[])
{
TreeCtrl *tree = marquee->tree;
Tk_SavedOptions savedOptions;
int error;
Tcl_Obj *errorResult = NULL;
int mask;
for (error = 0; error <= 1; error++)
{
if (error == 0)
{
if (Tk_SetOptions(tree->interp, (char *) marquee, marquee->optionTable,
objc, objv, tree->tkwin, &savedOptions, &mask) != TCL_OK)
{
mask = 0;
continue;
}
/* xxx */
Tk_FreeSavedOptions(&savedOptions);
break;
}
else
{
errorResult = Tcl_GetObjResult(tree->interp);
Tcl_IncrRefCount(errorResult);
Tk_RestoreSavedOptions(&savedOptions);
/* xxx */
Tcl_SetObjResult(tree->interp, errorResult);
Tcl_DecrRefCount(errorResult);
return TCL_ERROR;
}
}
if (mask & MARQ_CONF_VISIBLE)
{
TreeMarquee_Undisplay((TreeMarquee) marquee);
TreeMarquee_Display((TreeMarquee) marquee);
}
return TCL_OK;
}
int TreeMarqueeCmd(ClientData clientData, Tcl_Interp *interp, int objc,
Tcl_Obj *CONST objv[])
{
TreeCtrl *tree = (TreeCtrl *) clientData;
Marquee *marquee = (Marquee *) tree->marquee;
static CONST char *commandNames[] = { "anchor", "cget", "configure",
"coords", "corner", "identify", (char *) NULL };
enum { COMMAND_ANCHOR, COMMAND_CGET, COMMAND_CONFIGURE, COMMAND_COORDS,
COMMAND_CORNER, COMMAND_IDENTIFY };
int index;
if (objc < 3)
{
Tcl_WrongNumArgs(interp, 2, objv, "command ?arg arg...?");
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objv[2], commandNames, "command", 0,
&index) != TCL_OK)
{
return TCL_ERROR;
}
switch (index)
{
/* T marquee anchor ?x y?*/
case COMMAND_ANCHOR:
{
int x, y;
if (objc != 3 && objc != 5)
{
Tcl_WrongNumArgs(interp, 3, objv, "?x y?");
return TCL_ERROR;
}
if (objc == 3)
{
FormatResult(interp, "%d %d", marquee->x1, marquee->y1);
break;
}
if (Tcl_GetIntFromObj(interp, objv[3], &x) != TCL_OK)
return TCL_ERROR;
if (Tcl_GetIntFromObj(interp, objv[4], &y) != TCL_OK)
return TCL_ERROR;
if ((x == marquee->x1) && (y == marquee->y1))
break;
TreeMarquee_Undisplay(tree->marquee);
marquee->x1 = x;
marquee->y1 = y;
TreeMarquee_Display(tree->marquee);
break;
}
/* T marquee cget option */
case COMMAND_CGET:
{
Tcl_Obj *resultObjPtr;
if (objc != 4)
{
Tcl_WrongNumArgs(interp, 3, objv, "option");
return TCL_ERROR;
}
resultObjPtr = Tk_GetOptionValue(interp, (char *) marquee,
marquee->optionTable, objv[3], tree->tkwin);
if (resultObjPtr == NULL)
return TCL_ERROR;
Tcl_SetObjResult(interp, resultObjPtr);
break;
}
/* T marquee configure ?option? ?value? ?option value ...? */
case COMMAND_CONFIGURE:
{
Tcl_Obj *resultObjPtr;
if (objc < 3)
{
Tcl_WrongNumArgs(interp, 3, objv, "?option? ?value?");
return TCL_ERROR;
}
if (objc <= 4)
{
resultObjPtr = Tk_GetOptionInfo(interp, (char *) marquee,
marquee->optionTable,
(objc == 3) ? (Tcl_Obj *) NULL : objv[3],
tree->tkwin);
if (resultObjPtr == NULL)
return TCL_ERROR;
Tcl_SetObjResult(interp, resultObjPtr);
break;
}
return Marquee_Config(marquee, objc - 3, objv + 3);
}
/* T marquee coords ?x y x y? */
case COMMAND_COORDS:
{
int x1, y1, x2, y2;
if (objc != 3 && objc != 7)
{
Tcl_WrongNumArgs(interp, 3, objv, "?x y x y?");
return TCL_ERROR;
}
if (objc == 3)
{
FormatResult(interp, "%d %d %d %d", marquee->x1, marquee->y1,
marquee->x2, marquee->y2);
break;
}
if (Tcl_GetIntFromObj(interp, objv[3], &x1) != TCL_OK)
return TCL_ERROR;
if (Tcl_GetIntFromObj(interp, objv[4], &y1) != TCL_OK)
return TCL_ERROR;
if (Tcl_GetIntFromObj(interp, objv[5], &x2) != TCL_OK)
return TCL_ERROR;
if (Tcl_GetIntFromObj(interp, objv[6], &y2) != TCL_OK)
return TCL_ERROR;
if (x1 == marquee->x1 && y1 == marquee->y1 &&
x2 == marquee->x2 && y2 == marquee->y2)
break;
TreeMarquee_Undisplay(tree->marquee);
marquee->x1 = x1;
marquee->y1 = y1;
marquee->x2 = x2;
marquee->y2 = y2;
TreeMarquee_Display(tree->marquee);
break;
}
/* T marquee corner ?x y?*/
case COMMAND_CORNER:
{
int x, y;
if (objc != 3 && objc != 5)
{
Tcl_WrongNumArgs(interp, 3, objv, "?x y?");
return TCL_ERROR;
}
if (objc == 3)
{
FormatResult(interp, "%d %d", marquee->x2, marquee->y2);
break;
}
if (Tcl_GetIntFromObj(interp, objv[3], &x) != TCL_OK)
return TCL_ERROR;
if (Tcl_GetIntFromObj(interp, objv[4], &y) != TCL_OK)
return TCL_ERROR;
if (x == marquee->x2 && y == marquee->y2)
break;
TreeMarquee_Undisplay(tree->marquee);
marquee->x2 = x;
marquee->y2 = y;
TreeMarquee_Display(tree->marquee);
break;
}
/* T marquee identify */
case COMMAND_IDENTIFY:
{
int x1, y1, x2, y2, n = 0;
int totalWidth = Tree_TotalWidth(tree);
int totalHeight = Tree_TotalHeight(tree);
TreeItem *items;
Tcl_Obj *listObj;
if (objc != 3)
{
Tcl_WrongNumArgs(interp, 3, objv, (char *) NULL);
return TCL_ERROR;
}
x1 = MIN(marquee->x1, marquee->x2);
x2 = MAX(marquee->x1, marquee->x2);
y1 = MIN(marquee->y1, marquee->y2);
y2 = MAX(marquee->y1, marquee->y2);
if (x2 <= 0)
break;
if (x1 >= totalWidth)
break;
if (y2 <= 0)
break;
if (y1 >= totalHeight)
break;
if (x1 < 0)
x1 = 0;
if (x2 > totalWidth)
x2 = totalWidth;
if (y1 < 0)
y1 = 0;
if (y2 > totalHeight)
y2 = totalHeight;
items = Tree_ItemsInArea(tree, x1, y1, x2, y2);
if (items == NULL)
break;
listObj = Tcl_NewListObj(0, NULL);
while (items[n] != NULL)
{
Tcl_Obj *subListObj = Tcl_NewListObj(0, NULL);
Tcl_ListObjAppendElement(interp, subListObj,
TreeItem_ToObj(tree, items[n]));
TreeItem_Identify2(tree, items[n], x1, y1, x2, y2, subListObj);
Tcl_ListObjAppendElement(interp, listObj, subListObj);
n++;
}
ckfree((char *) items);
Tcl_SetObjResult(interp, listObj);
break;
}
}
return TCL_OK;
}
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