#include "default.h"
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#include "default.h"
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#include "tkInt.h"
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#include "tkInt.h"
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#include "tkPort.h"
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#include "tkPort.h"
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#include "tkCanvas.h"
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#include "tkCanvas.h"
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#include "tkCanvLayout.h"
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#include "tkCanvLayout.h"
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extern Tk_ItemType tkEdgeType;
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extern Tk_ItemType tkEdgeType;
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static Tk_Uid allUid = NULL;
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static Tk_Uid allUid = NULL;
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|
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typedef struct Layout_Graph Layout_Graph;
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typedef struct Layout_Graph Layout_Graph;
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static
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static
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char* layableitems[] = {
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char* layableitems[] = {
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"bitmap",
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"bitmap",
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"edge",
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"edge",
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"oval",
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"oval",
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"polygon",
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"polygon",
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"rectangle",
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"rectangle",
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"text",
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"text",
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"window",
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"window",
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(char*)0
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(char*)0
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};
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};
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/* Define a config set for graph command */
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/* Define a config set for graph command */
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static Tk_ConfigSpec graphspecs[] = {
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static Tk_ConfigSpec graphspecs[] = {
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{TK_CONFIG_BOOLEAN, "-computenodesize", (char*)NULL, (char*)NULL,
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{TK_CONFIG_BOOLEAN, "-computenodesize", (char*)NULL, (char*)NULL,
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"0", Tk_Offset(LayoutConfig,computenodesize), 0, (Tk_CustomOption*)NULL},
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"0", Tk_Offset(LayoutConfig,computenodesize), 0, (Tk_CustomOption*)NULL},
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{TK_CONFIG_INT, "-gridlock", (char*)NULL, (char*)NULL,
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{TK_CONFIG_INT, "-gridlock", (char*)NULL, (char*)NULL,
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"0", Tk_Offset(LayoutConfig,gridlock), 0, (Tk_CustomOption*)NULL},
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"0", Tk_Offset(LayoutConfig,gridlock), 0, (Tk_CustomOption*)NULL},
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{TK_CONFIG_INT, "-elementsperline", (char*)NULL, (char*)NULL,
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{TK_CONFIG_INT, "-elementsperline", (char*)NULL, (char*)NULL,
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"0", Tk_Offset(LayoutConfig,elementsperline), 0, (Tk_CustomOption*)NULL},
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"0", Tk_Offset(LayoutConfig,elementsperline), 0, (Tk_CustomOption*)NULL},
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{TK_CONFIG_BOOLEAN, "-hideedges", (char*)NULL, (char*)NULL,
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{TK_CONFIG_BOOLEAN, "-hideedges", (char*)NULL, (char*)NULL,
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"0", Tk_Offset(LayoutConfig,hideedges), 0, (Tk_CustomOption*)NULL},
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"0", Tk_Offset(LayoutConfig,hideedges), 0, (Tk_CustomOption*)NULL},
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{TK_CONFIG_BOOLEAN, "-keeprandompositions", (char*)NULL, (char*)NULL,
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{TK_CONFIG_BOOLEAN, "-keeprandompositions", (char*)NULL, (char*)NULL,
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"0", Tk_Offset(LayoutConfig,keeprandompositions), 0, (Tk_CustomOption*)NULL},
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"0", Tk_Offset(LayoutConfig,keeprandompositions), 0, (Tk_CustomOption*)NULL},
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{TK_CONFIG_PIXELS, "-nodespaceh", (char*)NULL, (char*)NULL,
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{TK_CONFIG_PIXELS, "-nodespaceh", (char*)NULL, (char*)NULL,
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"5", Tk_Offset(LayoutConfig,nodespaceH), 0, (Tk_CustomOption*)NULL},
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"5", Tk_Offset(LayoutConfig,nodespaceH), 0, (Tk_CustomOption*)NULL},
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{TK_CONFIG_PIXELS, "-nodespacev", (char*)NULL, (char*)NULL,
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{TK_CONFIG_PIXELS, "-nodespacev", (char*)NULL, (char*)NULL,
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"5", Tk_Offset(LayoutConfig,nodespaceV), 0, (Tk_CustomOption*)NULL},
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"5", Tk_Offset(LayoutConfig,nodespaceV), 0, (Tk_CustomOption*)NULL},
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{TK_CONFIG_PIXELS, "-maxx", (char*)NULL, (char*)NULL,
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{TK_CONFIG_PIXELS, "-maxx", (char*)NULL, (char*)NULL,
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(char*)NULL, Tk_Offset(LayoutConfig,maxx),
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(char*)NULL, Tk_Offset(LayoutConfig,maxx),
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TK_CONFIG_DONT_SET_DEFAULT, (Tk_CustomOption*)NULL},
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TK_CONFIG_DONT_SET_DEFAULT, (Tk_CustomOption*)NULL},
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{TK_CONFIG_PIXELS, "-maxy", (char*)NULL, (char*)NULL,
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{TK_CONFIG_PIXELS, "-maxy", (char*)NULL, (char*)NULL,
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(char*)NULL, Tk_Offset(LayoutConfig,maxy),
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(char*)NULL, Tk_Offset(LayoutConfig,maxy),
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TK_CONFIG_DONT_SET_DEFAULT, (Tk_CustomOption*)NULL},
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TK_CONFIG_DONT_SET_DEFAULT, (Tk_CustomOption*)NULL},
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{TK_CONFIG_INT, "-order", (char*)NULL, (char*)NULL,
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{TK_CONFIG_INT, "-order", (char*)NULL, (char*)NULL,
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"0", Tk_Offset(LayoutConfig,graphorder), 0, (Tk_CustomOption*)NULL},
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"0", Tk_Offset(LayoutConfig,graphorder), 0, (Tk_CustomOption*)NULL},
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{TK_CONFIG_PIXELS, "-xoffset", (char*)NULL, (char*)NULL,
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{TK_CONFIG_PIXELS, "-xoffset", (char*)NULL, (char*)NULL,
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"4", Tk_Offset(LayoutConfig,xoffset), 0, (Tk_CustomOption*)NULL},
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"4", Tk_Offset(LayoutConfig,xoffset), 0, (Tk_CustomOption*)NULL},
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{TK_CONFIG_PIXELS, "-yoffset", (char*)NULL, (char*)NULL,
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{TK_CONFIG_PIXELS, "-yoffset", (char*)NULL, (char*)NULL,
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"4", Tk_Offset(LayoutConfig,yoffset), 0, (Tk_CustomOption*)NULL},
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"4", Tk_Offset(LayoutConfig,yoffset), 0, (Tk_CustomOption*)NULL},
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{TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
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{TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
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(char *) NULL, 0, 0}
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(char *) NULL, 0, 0}
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};
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};
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/*
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/*
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* See tkCanvas.h for key data structures used to implement canvases.
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* See tkCanvas.h for key data structures used to implement canvases.
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*/
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*/
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/*
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/*
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* The structure defined below is used to keep track of a tag search
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* The structure defined below is used to keep track of a tag search
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* in progress. Only the "prevPtr" field should be accessed by anyone
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* in progress. Only the "prevPtr" field should be accessed by anyone
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* other than StartTagSearch and NextItem.
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* other than StartTagSearch and NextItem.
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*/
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*/
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typedef struct TagSearch {
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typedef struct TagSearch {
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TkCanvas *canvasPtr; /* Canvas widget being searched. */
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TkCanvas *canvasPtr; /* Canvas widget being searched. */
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Tk_Uid tag; /* Tag to search for. 0 means return
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Tk_Uid tag; /* Tag to search for. 0 means return
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* all items. */
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* all items. */
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Tk_Item *prevPtr; /* Item just before last one found (or NULL
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Tk_Item *prevPtr; /* Item just before last one found (or NULL
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* if last one found was first in the item
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* if last one found was first in the item
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* list of canvasPtr). */
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* list of canvasPtr). */
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Tk_Item *currentPtr; /* Pointer to last item returned. */
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Tk_Item *currentPtr; /* Pointer to last item returned. */
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int searchOver; /* Non-zero means NextItem should always
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int searchOver; /* Non-zero means NextItem should always
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* return NULL. */
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* return NULL. */
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} TagSearch;
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} TagSearch;
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static Tk_Item * NextItem _ANSI_ARGS_((TagSearch *searchPtr));
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static Tk_Item * NextItem _ANSI_ARGS_((TagSearch *searchPtr));
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static Tk_Item * StartTagSearch _ANSI_ARGS_((TkCanvas *canvasPtr,
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static Tk_Item * StartTagSearch _ANSI_ARGS_((TkCanvas *canvasPtr,
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char *tag, TagSearch *searchPtr));
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char *tag, TagSearch *searchPtr));
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static Tcl_HashTable * graph_table _ANSI_ARGS_((Tcl_Interp *interp));
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static Tcl_HashTable * graph_table _ANSI_ARGS_((Tcl_Interp *interp));
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int MY_graphOrder (struct Layout_Graph* This);
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int MY_graphOrder (struct Layout_Graph* This);
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void * MY_EdgeParent (struct Layout_Graph* This, int i, int num);
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void * MY_EdgeParent (struct Layout_Graph* This, int i, int num);
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void * MY_EdgeFromNode (struct Layout_Graph* This, int i);
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void * MY_EdgeFromNode (struct Layout_Graph* This, int i);
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static
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static
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int
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int
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getnodebbox(interp,canvasPtr, iPtr, bbox)
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getnodebbox(interp,canvasPtr, iPtr, bbox)
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Tcl_Interp* interp;
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Tcl_Interp* interp;
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TkCanvas* canvasPtr;
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TkCanvas* canvasPtr;
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Tk_Item* iPtr;
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Tk_Item* iPtr;
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ItemGeom* bbox;
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ItemGeom* bbox;
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{
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{
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bbox->x1 = iPtr->x1;
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bbox->x1 = iPtr->x1;
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bbox->y1 = iPtr->y1;
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bbox->y1 = iPtr->y1;
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bbox->x2 = iPtr->x2;
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bbox->x2 = iPtr->x2;
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bbox->y2 = iPtr->y2;
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bbox->y2 = iPtr->y2;
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return TCL_OK;
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return TCL_OK;
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}
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}
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static
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static
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int
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int
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getedgedim(canvasPtr, e, dim)
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getedgedim(canvasPtr, e, dim)
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TkCanvas* canvasPtr;
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TkCanvas* canvasPtr;
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Tk_Item* e;
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Tk_Item* e;
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ItemGeom* dim;
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ItemGeom* dim;
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{
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{
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int argc2;
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int argc2;
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char **argv2;
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char **argv2;
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/* Read the text height of this edge. */
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/* Read the text height of this edge. */
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Tk_ConfigureInfo(canvasPtr->interp, canvasPtr->tkwin,
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Tk_ConfigureInfo(canvasPtr->interp, canvasPtr->tkwin,
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e->typePtr->configSpecs,
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e->typePtr->configSpecs,
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(char *) e, "-textheight", 0);
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(char *) e, "-textheight", 0);
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if(Tcl_SplitList(canvasPtr->interp, canvasPtr->interp->result,
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if(Tcl_SplitList(canvasPtr->interp, canvasPtr->interp->result,
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&argc2, &argv2) != TCL_OK) {
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&argc2, &argv2) != TCL_OK) {
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return TCL_ERROR;
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return TCL_ERROR;
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}
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}
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dim->height = atol(argv2[4]);
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dim->height = atol(argv2[4]);
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ckfree((char *) argv2);
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ckfree((char *) argv2);
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/* Read the text width of this edge. */
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/* Read the text width of this edge. */
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Tk_ConfigureInfo(canvasPtr->interp, canvasPtr->tkwin,
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Tk_ConfigureInfo(canvasPtr->interp, canvasPtr->tkwin,
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e->typePtr->configSpecs,
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e->typePtr->configSpecs,
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(char *) e, "-textwidth", 0);
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(char *) e, "-textwidth", 0);
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if(Tcl_SplitList(canvasPtr->interp, canvasPtr->interp->result,
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if(Tcl_SplitList(canvasPtr->interp, canvasPtr->interp->result,
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&argc2, &argv2) != TCL_OK) {
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&argc2, &argv2) != TCL_OK) {
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return TCL_ERROR;
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return TCL_ERROR;
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}
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}
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dim->width = atol(argv2[4]);
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dim->width = atol(argv2[4]);
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ckfree((char *) argv2);
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ckfree((char *) argv2);
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Tcl_ResetResult(canvasPtr->interp);
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Tcl_ResetResult(canvasPtr->interp);
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return TCL_OK;
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return TCL_OK;
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}
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}
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static
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static
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int
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int
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setnodegeom(interp,canvasPtr,iPtr,geom)
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setnodegeom(interp,canvasPtr,iPtr,geom)
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Tcl_Interp* interp;
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Tcl_Interp* interp;
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TkCanvas* canvasPtr;
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TkCanvas* canvasPtr;
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Tk_Item* iPtr;
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Tk_Item* iPtr;
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ItemGeom geom;
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ItemGeom geom;
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{
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{
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double deltax, deltay;
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double deltax, deltay;
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|
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if(iPtr->typePtr->translateProc == NULL) {
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if(iPtr->typePtr->translateProc == NULL) {
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Tcl_AppendResult(interp,"item has no translation proc",(char*)0);
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Tcl_AppendResult(interp,"item has no translation proc",(char*)0);
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return TCL_ERROR;
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return TCL_ERROR;
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}
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}
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/* get the delta x,y of the item */
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/* get the delta x,y of the item */
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deltax = geom.x1 - iPtr->x1;
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deltax = geom.x1 - iPtr->x1;
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deltay = geom.y1 - iPtr->y1;
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deltay = geom.y1 - iPtr->y1;
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Tk_CanvasEventuallyRedraw((Tk_Canvas) canvasPtr, iPtr->x1, iPtr->y1, iPtr->x2, iPtr->y2);
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Tk_CanvasEventuallyRedraw((Tk_Canvas) canvasPtr, iPtr->x1, iPtr->y1, iPtr->x2, iPtr->y2);
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(void)(*iPtr->typePtr->translateProc)((Tk_Canvas) canvasPtr, iPtr, deltax, deltay);
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(void)(*iPtr->typePtr->translateProc)((Tk_Canvas) canvasPtr, iPtr, deltax, deltay);
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Tk_CanvasEventuallyRedraw((Tk_Canvas) canvasPtr, iPtr->x1, iPtr->y1, iPtr->x2, iPtr->y2);
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Tk_CanvasEventuallyRedraw((Tk_Canvas) canvasPtr, iPtr->x1, iPtr->y1, iPtr->x2, iPtr->y2);
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return TCL_OK;
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return TCL_OK;
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}
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}
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static Layout_Graph *
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static Layout_Graph *
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GetGraphLayoutII(TkCanvas *canvasPtr, Tcl_Interp *interp);
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GetGraphLayoutII(TkCanvas *canvasPtr, Tcl_Interp *interp);
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static
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static
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int
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int
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setedgegeom(interp,canvasPtr,iPtr,geom,i)
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setedgegeom(interp,canvasPtr,iPtr,geom,i)
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Tcl_Interp* interp;
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Tcl_Interp* interp;
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TkCanvas* canvasPtr;
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TkCanvas* canvasPtr;
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Tk_Item* iPtr;
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Tk_Item* iPtr;
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ItemGeom geom;
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ItemGeom geom;
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int i;
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int i;
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{
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{
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/* register char* nm;
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/* register char* nm;
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register int c; */
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register int c; */
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int argc = 4;
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int argc = 4;
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char x1[TCL_DOUBLE_SPACE];
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char x1[TCL_DOUBLE_SPACE];
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char y1[TCL_DOUBLE_SPACE];
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char y1[TCL_DOUBLE_SPACE];
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char x2[TCL_DOUBLE_SPACE];
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char x2[TCL_DOUBLE_SPACE];
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char y2[TCL_DOUBLE_SPACE];
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char y2[TCL_DOUBLE_SPACE];
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char x3[TCL_DOUBLE_SPACE];
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char x3[TCL_DOUBLE_SPACE];
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char y3[TCL_DOUBLE_SPACE];
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char y3[TCL_DOUBLE_SPACE];
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char x4[TCL_DOUBLE_SPACE];
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char x4[TCL_DOUBLE_SPACE];
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char y4[TCL_DOUBLE_SPACE];
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char y4[TCL_DOUBLE_SPACE];
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char* argv[8];
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char* argv[8];
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Layout_Graph *graph=GetGraphLayoutII(canvasPtr, interp);
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Layout_Graph *graph=GetGraphLayoutII(canvasPtr, interp);
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|
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LayoutConfig cnf = GetLayoutConfig (/*canvasPtr->*/graph);
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LayoutConfig cnf = GetLayoutConfig (/*canvasPtr->*/graph);
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double xd = geom.x1 - geom.x2 /*- 10.0*/ , xdiff;
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double xd = geom.x1 - geom.x2 /*- 10.0*/ , xdiff;
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|
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if (xd < 0.0) xd = geom.x2 - geom.x1 /*- 10.0*/;
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if (xd < 0.0) xd = geom.x2 - geom.x1 /*- 10.0*/;
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|
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if(iPtr->typePtr->coordProc == NULL) {
|
if(iPtr->typePtr->coordProc == NULL) {
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Tcl_AppendResult(interp,"could not set edge item coordinates",(char*)0);
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Tcl_AppendResult(interp,"could not set edge item coordinates",(char*)0);
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return TCL_ERROR;
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return TCL_ERROR;
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}
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}
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argv[0] = x1;
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argv[0] = x1;
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argv[1] = y1;
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argv[1] = y1;
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argv[2] = x2;
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argv[2] = x2;
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argv[3] = y2;
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argv[3] = y2;
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argv[4] = x3;
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argv[4] = x3;
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argv[5] = y3;
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argv[5] = y3;
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argv[6] = x4;
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argv[6] = x4;
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argv[7] = y4;
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argv[7] = y4;
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|
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sprintf(x1,"%g",geom.x1);
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sprintf(x1,"%g",geom.x1);
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sprintf(y1,"%g",geom.y1);
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sprintf(y1,"%g",geom.y1);
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sprintf(x2,"%g",geom.x2);
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sprintf(x2,"%g",geom.x2);
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sprintf(y2,"%g",geom.y2);
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sprintf(y2,"%g",geom.y2);
|
|
|
if (cnf.gridlock!=0)
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if (cnf.gridlock!=0)
|
{
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{
|
/* changing lines, only when right to left */
|
/* changing lines, only when right to left */
|
if (! MY_graphOrder (/*canvasPtr->*/graph))
|
if (! MY_graphOrder (/*canvasPtr->*/graph))
|
{
|
{
|
xdiff = (double) cnf.nodespaceH - xd;
|
xdiff = (double) cnf.nodespaceH - xd;
|
if (xdiff < 0.0) xdiff = xd - (double) cnf.nodespaceH;
|
if (xdiff < 0.0) xdiff = xd - (double) cnf.nodespaceH;
|
|
|
if (xdiff < 2.0 &&
|
if (xdiff < 2.0 &&
|
MY_EdgeParent(/*canvasPtr->*/graph, i, 0) ==
|
MY_EdgeParent(/*canvasPtr->*/graph, i, 0) ==
|
MY_EdgeFromNode (/*canvasPtr->*/graph, i))
|
MY_EdgeFromNode (/*canvasPtr->*/graph, i))
|
{
|
{
|
sprintf (x4, "%g", geom.x2);
|
sprintf (x4, "%g", geom.x2);
|
sprintf (y4, "%g", geom.y2);
|
sprintf (y4, "%g", geom.y2);
|
|
|
sprintf (x2, "%g", geom.x1 + (geom.x2 - geom.x1) / 2);
|
sprintf (x2, "%g", geom.x1 + (geom.x2 - geom.x1) / 2);
|
sprintf (y2, "%g", geom.y1);
|
sprintf (y2, "%g", geom.y1);
|
sprintf (x3, "%g", geom.x1 + (geom.x2 - geom.x1) / 2);
|
sprintf (x3, "%g", geom.x1 + (geom.x2 - geom.x1) / 2);
|
sprintf (y3, "%g", geom.y2);
|
sprintf (y3, "%g", geom.y2);
|
argc = 8;
|
argc = 8;
|
}
|
}
|
}
|
}
|
}
|
}
|
Tk_CanvasEventuallyRedraw((Tk_Canvas) canvasPtr, iPtr->x1, iPtr->y1, iPtr->x2, iPtr->y2);
|
Tk_CanvasEventuallyRedraw((Tk_Canvas) canvasPtr, iPtr->x1, iPtr->y1, iPtr->x2, iPtr->y2);
|
(void)(*iPtr->typePtr->coordProc)(interp, (Tk_Canvas) canvasPtr, iPtr,
|
(void)(*iPtr->typePtr->coordProc)(interp, (Tk_Canvas) canvasPtr, iPtr,
|
/* argc-3, argv+3); 08nov95 wmt */
|
/* argc-3, argv+3); 08nov95 wmt */
|
argc, argv);
|
argc, argv);
|
Tk_CanvasEventuallyRedraw((Tk_Canvas) canvasPtr, iPtr->x1, iPtr->y1, iPtr->x2, iPtr->y2);
|
Tk_CanvasEventuallyRedraw((Tk_Canvas) canvasPtr, iPtr->x1, iPtr->y1, iPtr->x2, iPtr->y2);
|
return TCL_OK;
|
return TCL_OK;
|
}
|
}
|
|
|
static
|
static
|
int
|
int
|
GetEdgeNodes(interp,canvasPtr,i,fp,tp)
|
GetEdgeNodes(interp,canvasPtr,i,fp,tp)
|
Tcl_Interp* interp;
|
Tcl_Interp* interp;
|
TkCanvas* canvasPtr;
|
TkCanvas* canvasPtr;
|
Tk_Item* i;
|
Tk_Item* i;
|
char** fp;
|
char** fp;
|
char** tp;
|
char** tp;
|
{
|
{
|
int argc;
|
int argc;
|
char** argv;
|
char** argv;
|
char * buf;
|
char * buf;
|
|
|
/* Read the from node id of this edge. */
|
/* Read the from node id of this edge. */
|
Tk_ConfigureInfo(interp, canvasPtr->tkwin,
|
Tk_ConfigureInfo(interp, canvasPtr->tkwin,
|
i->typePtr->configSpecs,
|
i->typePtr->configSpecs,
|
(char *) i, "-from", 0);
|
(char *) i, "-from", 0);
|
if(Tcl_SplitList(interp, interp->result,
|
if(Tcl_SplitList(interp, interp->result,
|
&argc, &argv) != TCL_OK) {
|
&argc, &argv) != TCL_OK) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
/* This should actuall be a call like Tcl_Strdup() */
|
/* This should actuall be a call like Tcl_Strdup() */
|
buf = (char*)ckalloc (strlen(argv[4])+1);
|
buf = (char*)ckalloc (strlen(argv[4])+1);
|
strcpy (buf, argv[4]);
|
strcpy (buf, argv[4]);
|
*fp = buf;
|
*fp = buf;
|
ckfree((char*)argv);
|
ckfree((char*)argv);
|
/* Read the to node id of this edge. */
|
/* Read the to node id of this edge. */
|
Tk_ConfigureInfo(interp, canvasPtr->tkwin,
|
Tk_ConfigureInfo(interp, canvasPtr->tkwin,
|
i->typePtr->configSpecs,
|
i->typePtr->configSpecs,
|
(char *) i, "-to", 0);
|
(char *) i, "-to", 0);
|
if(Tcl_SplitList(interp, interp->result,
|
if(Tcl_SplitList(interp, interp->result,
|
&argc, &argv) != TCL_OK) {
|
&argc, &argv) != TCL_OK) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
buf = (char*)ckalloc (strlen(argv[4])+1);
|
buf = (char*)ckalloc (strlen(argv[4])+1);
|
strcpy (buf, argv[4]);
|
strcpy (buf, argv[4]);
|
*tp = buf;
|
*tp = buf;
|
ckfree((char*)argv);
|
ckfree((char*)argv);
|
Tcl_ResetResult(interp);
|
Tcl_ResetResult(interp);
|
return TCL_OK;
|
return TCL_OK;
|
}
|
}
|
|
|
|
|
int
|
int
|
createcanvasgraph(interp,canvCmd,graph)
|
createcanvasgraph(interp,canvCmd,graph)
|
Tcl_Interp* interp;
|
Tcl_Interp* interp;
|
Tcl_CmdInfo *canvCmd;
|
Tcl_CmdInfo *canvCmd;
|
Layout_Graph **graph;
|
Layout_Graph **graph;
|
{
|
{
|
LayoutConfig cfg;
|
LayoutConfig cfg;
|
int argc1; char* argv1[3];
|
int argc1; char* argv1[3];
|
|
|
*graph = LayoutCreateGraph();
|
*graph = LayoutCreateGraph();
|
if(!*graph) {
|
if(!*graph) {
|
Tcl_AppendResult(interp,"cannot create graph for canvas",(char*)0);
|
Tcl_AppendResult(interp,"cannot create graph for canvas",(char*)0);
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
cfg = GetLayoutConfig(*graph);
|
cfg = GetLayoutConfig(*graph);
|
/* Establish max x and max y based on canvas height/width */
|
/* Establish max x and max y based on canvas height/width */
|
argv1[0] = "<graph-canvas>";
|
argv1[0] = "<graph-canvas>";
|
argv1[1] = "cget";
|
argv1[1] = "cget";
|
argv1[2] = "-width";
|
argv1[2] = "-width";
|
argc1 = 3;
|
argc1 = 3;
|
if ((canvCmd->proc)(canvCmd->clientData, interp, argc1, argv1)
|
if ((canvCmd->proc)(canvCmd->clientData, interp, argc1, argv1)
|
!= TCL_OK) {
|
!= TCL_OK) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
cfg.maxx = atol(Tcl_GetStringResult(interp));
|
cfg.maxx = atol(Tcl_GetStringResult(interp));
|
|
|
argv1[2] = "-height";
|
argv1[2] = "-height";
|
if ((canvCmd->proc) (canvCmd->clientData, interp, argc1, argv1)
|
if ((canvCmd->proc) (canvCmd->clientData, interp, argc1, argv1)
|
!= TCL_OK) {
|
!= TCL_OK) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
cfg.maxy = atol(Tcl_GetStringResult(interp));
|
cfg.maxy = atol(Tcl_GetStringResult(interp));
|
Tcl_ResetResult(interp);
|
Tcl_ResetResult(interp);
|
SetLayoutConfig(*graph,cfg);
|
SetLayoutConfig(*graph,cfg);
|
return TCL_OK;
|
return TCL_OK;
|
}
|
}
|
|
|
static Tcl_HashTable *
|
static Tcl_HashTable *
|
graph_table (Tcl_Interp *interp)
|
graph_table (Tcl_Interp *interp)
|
{
|
{
|
return (Tcl_HashTable *) Tcl_GetAssocData (interp, "canvasgraph", NULL);
|
return (Tcl_HashTable *) Tcl_GetAssocData (interp, "canvasgraph", NULL);
|
}
|
}
|
|
|
/*
|
/*
|
*-------------------------------------------------------------
|
*-------------------------------------------------------------
|
*
|
*
|
* GetGraphLayout --
|
* GetGraphLayout --
|
* Gets graph info for canvas. Adds a new entry if needed.
|
* Gets graph info for canvas. Adds a new entry if needed.
|
*
|
*
|
* Results:
|
* Results:
|
* Standard Tcl Error
|
* Standard Tcl Error
|
*-------------------------------------------------------------
|
*-------------------------------------------------------------
|
*/
|
*/
|
|
|
static Layout_Graph *
|
static Layout_Graph *
|
GetGraphLayout(canvCmd, interp)
|
GetGraphLayout(canvCmd, interp)
|
Tcl_CmdInfo *canvCmd;
|
Tcl_CmdInfo *canvCmd;
|
Tcl_Interp *interp;
|
Tcl_Interp *interp;
|
{
|
{
|
Tcl_HashEntry *entry;
|
Tcl_HashEntry *entry;
|
|
|
entry = Tcl_FindHashEntry(graph_table(interp), (char *)canvCmd->clientData);
|
entry = Tcl_FindHashEntry(graph_table(interp), (char *)canvCmd->clientData);
|
if (entry)
|
if (entry)
|
return (Layout_Graph *)Tcl_GetHashValue(entry);
|
return (Layout_Graph *)Tcl_GetHashValue(entry);
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
static Layout_Graph *
|
static Layout_Graph *
|
GetGraphLayoutII(canvasPtr, interp)
|
GetGraphLayoutII(canvasPtr, interp)
|
TkCanvas *canvasPtr;
|
TkCanvas *canvasPtr;
|
Tcl_Interp *interp;
|
Tcl_Interp *interp;
|
{
|
{
|
Tcl_HashEntry *entry;
|
Tcl_HashEntry *entry;
|
entry = Tcl_FindHashEntry(graph_table(interp), (char *)canvasPtr);
|
entry = Tcl_FindHashEntry(graph_table(interp), (char *)canvasPtr);
|
if (entry)
|
if (entry)
|
return (Layout_Graph *)Tcl_GetHashValue(entry);
|
return (Layout_Graph *)Tcl_GetHashValue(entry);
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
static int
|
static int
|
GetCreatedGraphLayout(interp, canvCmd, graph)
|
GetCreatedGraphLayout(interp, canvCmd, graph)
|
Tcl_Interp *interp;
|
Tcl_Interp *interp;
|
Tcl_CmdInfo *canvCmd;
|
Tcl_CmdInfo *canvCmd;
|
Layout_Graph **graph;
|
Layout_Graph **graph;
|
{
|
{
|
*graph = GetGraphLayout(canvCmd, interp);
|
*graph = GetGraphLayout(canvCmd, interp);
|
if (*graph == NULL) {
|
if (*graph == NULL) {
|
Tcl_HashEntry *newitem;
|
Tcl_HashEntry *newitem;
|
int new;
|
int new;
|
|
|
/* No item, let's make one and add it to the table. */
|
/* No item, let's make one and add it to the table. */
|
if (createcanvasgraph(interp, canvCmd, graph) != TCL_OK)
|
if (createcanvasgraph(interp, canvCmd, graph) != TCL_OK)
|
return TCL_ERROR;
|
return TCL_ERROR;
|
newitem = Tcl_CreateHashEntry(graph_table(interp),
|
newitem = Tcl_CreateHashEntry(graph_table(interp),
|
(char *)(canvCmd->clientData), &new);
|
(char *)(canvCmd->clientData), &new);
|
Tcl_SetHashValue(newitem, (ClientData) *graph);
|
Tcl_SetHashValue(newitem, (ClientData) *graph);
|
}
|
}
|
return TCL_OK;
|
return TCL_OK;
|
}
|
}
|
|
|
/*
|
/*
|
*--------------------------------------------------------------
|
*--------------------------------------------------------------
|
*
|
*
|
* GraphCanvasCmd --
|
* GraphCanvasCmd --
|
* This procedure is invoked to process the new "graph"
|
* This procedure is invoked to process the new "graph"
|
* command. This command takes a canvas and uses it to layout
|
* command. This command takes a canvas and uses it to layout
|
* the canvas items with a pretty graph structure.
|
* the canvas items with a pretty graph structure.
|
*
|
*
|
* Results:
|
* Results:
|
* Standard Tcl result.
|
* Standard Tcl result.
|
*
|
*
|
*--------------------------------------------------------------
|
*--------------------------------------------------------------
|
*/
|
*/
|
|
|
int
|
int
|
GraphCanvasCmd(clientData, interp, argc, argv)
|
GraphCanvasCmd(clientData, interp, argc, argv)
|
ClientData clientData;
|
ClientData clientData;
|
Tcl_Interp *interp;
|
Tcl_Interp *interp;
|
int argc;
|
int argc;
|
char **argv;
|
char **argv;
|
{
|
{
|
Tcl_CmdInfo canvCmd;
|
Tcl_CmdInfo canvCmd;
|
size_t length;
|
size_t length;
|
int c, i;
|
int c, i;
|
Layout_Graph *graph;
|
Layout_Graph *graph;
|
TkCanvas *canvasPtr;
|
TkCanvas *canvasPtr;
|
|
|
if (argc < 3) {
|
if (argc < 3) {
|
Tcl_AppendResult(interp, "wrong # args: should be \"",
|
Tcl_AppendResult(interp, "wrong # args: should be \"",
|
argv[0], " canvas option ?arg arg ...?\"",
|
argv[0], " canvas option ?arg arg ...?\"",
|
(char *) NULL);
|
(char *) NULL);
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
|
|
/* The second arg is the canvas widget */
|
/* The second arg is the canvas widget */
|
if (!Tcl_GetCommandInfo(interp, argv[1], &canvCmd)) {
|
if (!Tcl_GetCommandInfo(interp, argv[1], &canvCmd)) {
|
Tcl_AppendResult(interp, "couldn't get canvas information for \"",
|
Tcl_AppendResult(interp, "couldn't get canvas information for \"",
|
argv[1], "\"", (char *) NULL);
|
argv[1], "\"", (char *) NULL);
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
canvasPtr = (TkCanvas *)(canvCmd.clientData);
|
canvasPtr = (TkCanvas *)(canvCmd.clientData);
|
|
|
c = argv[2][0];
|
c = argv[2][0];
|
length = strlen(argv[2]);
|
length = strlen(argv[2]);
|
if ((c == 'a') && (strncmp(argv[2], "add", length) == 0)) {
|
if ((c == 'a') && (strncmp(argv[2], "add", length) == 0)) {
|
char* newargv[4];
|
char* newargv[4];
|
if (argc < 4) {
|
if (argc < 4) {
|
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
" ", argv[1], " add tagOrId ?tagOrId ...?\"",
|
" ", argv[1], " add tagOrId ?tagOrId ...?\"",
|
(char *) NULL);
|
(char *) NULL);
|
goto error;
|
goto error;
|
}
|
}
|
|
|
if (GetCreatedGraphLayout(interp, &canvCmd, &graph) != TCL_OK)
|
if (GetCreatedGraphLayout(interp, &canvCmd, &graph) != TCL_OK)
|
goto error;
|
goto error;
|
|
|
for (i = 3; i < argc; i++) {
|
for (i = 3; i < argc; i++) {
|
Tk_Item *itemPtr;
|
Tk_Item *itemPtr;
|
TagSearch search;
|
TagSearch search;
|
/* Loop through all the items */
|
/* Loop through all the items */
|
for (itemPtr = StartTagSearch(canvasPtr, argv[i], &search);
|
for (itemPtr = StartTagSearch(canvasPtr, argv[i], &search);
|
itemPtr != NULL; itemPtr = NextItem(&search)) {
|
itemPtr != NULL; itemPtr = NextItem(&search)) {
|
char* nm = itemPtr->typePtr->name;
|
char* nm = itemPtr->typePtr->name;
|
/* create a new edge or node */
|
/* create a new edge or node */
|
if(strcmp(nm,"edge") == 0) {
|
if(strcmp(nm,"edge") == 0) {
|
char* fname;
|
char* fname;
|
char* tname;
|
char* tname;
|
Tk_Item* f;
|
Tk_Item* f;
|
Tk_Item* t;
|
Tk_Item* t;
|
/* find the from and to node pItems */
|
/* find the from and to node pItems */
|
if(GetEdgeNodes(interp,canvasPtr,itemPtr,&fname,&tname) != TCL_OK)
|
if(GetEdgeNodes(interp,canvasPtr,itemPtr,&fname,&tname) != TCL_OK)
|
goto error;
|
goto error;
|
/* find the from and to node pItems */
|
/* find the from and to node pItems */
|
f = StartTagSearch(canvasPtr, fname, &search);
|
f = StartTagSearch(canvasPtr, fname, &search);
|
t = StartTagSearch(canvasPtr, tname, &search);
|
t = StartTagSearch(canvasPtr, tname, &search);
|
ckfree(fname); ckfree(tname);
|
ckfree(fname); ckfree(tname);
|
if(LayoutCreateEdge(graph,
|
if(LayoutCreateEdge(graph,
|
(pItem)itemPtr,
|
(pItem)itemPtr,
|
(pItem)f, (pItem)t) != TCL_OK) {
|
(pItem)f, (pItem)t) != TCL_OK) {
|
char* msg = LayoutGetError(graph);
|
char* msg = LayoutGetError(graph);
|
if(!msg)
|
if(!msg)
|
msg = "could not record edge in graph";
|
msg = "could not record edge in graph";
|
Tcl_AppendResult(interp,msg,(char*)0);
|
Tcl_AppendResult(interp,msg,(char*)0);
|
goto error;
|
goto error;
|
}
|
}
|
} else { /* not an edge; assume a node */
|
} else { /* not an edge; assume a node */
|
/* verify that we can handle this */
|
/* verify that we can handle this */
|
char** p;
|
char** p;
|
for(p=layableitems;*p;p++) {
|
for(p=layableitems;*p;p++) {
|
if(strcmp(*p,nm)==0) break;
|
if(strcmp(*p,nm)==0) break;
|
}
|
}
|
if(!*p) {
|
if(!*p) {
|
Tcl_AppendResult(interp,"cannot yet handle ",nm,(char*)0);
|
Tcl_AppendResult(interp,"cannot yet handle ",nm,(char*)0);
|
goto error;
|
goto error;
|
}
|
}
|
if(LayoutCreateNode(graph,
|
if(LayoutCreateNode(graph,
|
(pItem)itemPtr,NULL,NULL) !=TCL_OK) {
|
(pItem)itemPtr,NULL,NULL) !=TCL_OK) {
|
char* msg = LayoutGetError(graph);
|
char* msg = LayoutGetError(graph);
|
if(!msg)
|
if(!msg)
|
msg = "could not record node in graph";
|
msg = "could not record node in graph";
|
Tcl_AppendResult(interp,msg,(char*)0);
|
Tcl_AppendResult(interp,msg,(char*)0);
|
goto error;
|
goto error;
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
} else if ((c == 'c') && (strncmp(argv[2], "configure", length) == 0)) {
|
} else if ((c == 'c') && (strncmp(argv[2], "configure", length) == 0)) {
|
register int ok;
|
register int ok;
|
LayoutConfig cfg;
|
LayoutConfig cfg;
|
if (GetCreatedGraphLayout(interp, &canvCmd, &graph) != TCL_OK)
|
if (GetCreatedGraphLayout(interp, &canvCmd, &graph) != TCL_OK)
|
goto error;
|
goto error;
|
cfg = GetLayoutConfig(graph);
|
cfg = GetLayoutConfig(graph);
|
|
|
if(argc == 3) {
|
if(argc == 3) {
|
/* get all options */
|
/* get all options */
|
ok = Tk_ConfigureInfo(interp,
|
ok = Tk_ConfigureInfo(interp,
|
Tk_CanvasTkwin(*(Tk_Canvas *)canvasPtr),
|
Tk_CanvasTkwin(*(Tk_Canvas *)canvasPtr),
|
graphspecs,(char*)&cfg, (char*)NULL, 0);
|
graphspecs,(char*)&cfg, (char*)NULL, 0);
|
} else if(argc == 4) {
|
} else if(argc == 4) {
|
/* get one option */
|
/* get one option */
|
ok = Tk_ConfigureInfo(interp,
|
ok = Tk_ConfigureInfo(interp,
|
Tk_CanvasTkwin(*(Tk_Canvas *)canvasPtr),
|
Tk_CanvasTkwin(*(Tk_Canvas *)canvasPtr),
|
graphspecs,(char*)&cfg, argv[3], 0);
|
graphspecs,(char*)&cfg, argv[3], 0);
|
} else { /* setting one or more options */
|
} else { /* setting one or more options */
|
ok = Tk_ConfigureWidget(interp,
|
ok = Tk_ConfigureWidget(interp,
|
Tk_CanvasTkwin(*(Tk_Canvas *)canvasPtr),
|
Tk_CanvasTkwin(*(Tk_Canvas *)canvasPtr),
|
graphspecs, argc-3, argv+3,
|
graphspecs, argc-3, argv+3,
|
(char*)&cfg, TK_CONFIG_ARGV_ONLY);
|
(char*)&cfg, TK_CONFIG_ARGV_ONLY);
|
if(ok == TCL_OK) {
|
if(ok == TCL_OK) {
|
SetLayoutConfig(graph,cfg);
|
SetLayoutConfig(graph,cfg);
|
}
|
}
|
}
|
}
|
if(ok != TCL_OK) goto error;
|
if(ok != TCL_OK) goto error;
|
} else if ((c == 'c') && (strncmp(argv[2], "clear", length) == 0)) {
|
} else if ((c == 'c') && (strncmp(argv[2], "clear", length) == 0)) {
|
/* clear graph; ignore if no graph */
|
/* clear graph; ignore if no graph */
|
Layout_Graph *graph = GetGraphLayout(&canvCmd, interp);
|
Layout_Graph *graph = GetGraphLayout(&canvCmd, interp);
|
if (graph)
|
if (graph)
|
LayoutClearGraph(graph);
|
LayoutClearGraph(graph);
|
} else if ((c == 'd') && (strncmp(argv[2], "destroy", length) == 0)) {
|
} else if ((c == 'd') && (strncmp(argv[2], "destroy", length) == 0)) {
|
/* destroy any graph info connected to the canvas,
|
/* destroy any graph info connected to the canvas,
|
but without destroying the canvas
|
but without destroying the canvas
|
*/
|
*/
|
Layout_Graph *graph = GetGraphLayout(&canvCmd, interp);
|
Layout_Graph *graph = GetGraphLayout(&canvCmd, interp);
|
if (graph) {
|
if (graph) {
|
Tcl_HashEntry *entry;
|
Tcl_HashEntry *entry;
|
entry = Tcl_FindHashEntry(graph_table(interp),
|
entry = Tcl_FindHashEntry(graph_table(interp),
|
(char *)(canvCmd.clientData));
|
(char *)(canvCmd.clientData));
|
|
|
LayoutFreeGraph(graph);
|
LayoutFreeGraph(graph);
|
/* Remove hash table entry */
|
/* Remove hash table entry */
|
Tcl_DeleteHashEntry(entry);
|
Tcl_DeleteHashEntry(entry);
|
}
|
}
|
} else if ((c == 'e') && (strncmp(argv[2], "edges", length) == 0)) {
|
} else if ((c == 'e') && (strncmp(argv[2], "edges", length) == 0)) {
|
Tk_Item* ip;
|
Tk_Item* ip;
|
Layout_Graph *graph = GetGraphLayout(&canvCmd, interp);
|
Layout_Graph *graph = GetGraphLayout(&canvCmd, interp);
|
/* return list of edges associated with graph, if any */
|
/* return list of edges associated with graph, if any */
|
if(!graph) goto done;
|
if(!graph) goto done;
|
for(i=0;LayoutGetIthEdge(graph,i,(pItem*)&ip)==TCL_OK;i++) {
|
for(i=0;LayoutGetIthEdge(graph,i,(pItem*)&ip)==TCL_OK;i++) {
|
char convertbuffer[20];
|
char convertbuffer[20];
|
sprintf(convertbuffer, "%d", ip->id);
|
sprintf(convertbuffer, "%d", ip->id);
|
Tcl_AppendElement(interp,convertbuffer);
|
Tcl_AppendElement(interp,convertbuffer);
|
}
|
}
|
} else if ((c == 'l') && (strncmp(argv[2], "layout", length) == 0)) {
|
} else if ((c == 'l') && (strncmp(argv[2], "layout", length) == 0)) {
|
char* which;
|
char* which;
|
Tk_Item* ip;
|
Tk_Item* ip;
|
Layout_Graph *graph = GetGraphLayout(&canvCmd, interp);
|
Layout_Graph *graph = GetGraphLayout(&canvCmd, interp);
|
|
|
if(!graph) goto done;
|
if(!graph) goto done;
|
|
|
/* get the geometries of the items attached to the graph */
|
/* get the geometries of the items attached to the graph */
|
for(i=0;LayoutGetIthNode(graph,i,(pItem*)&ip)==TCL_OK;i++) {
|
for(i=0;LayoutGetIthNode(graph,i,(pItem*)&ip)==TCL_OK;i++) {
|
ItemGeom geom;
|
ItemGeom geom;
|
if(getnodebbox(interp,canvasPtr,ip,&geom) != TCL_OK
|
if(getnodebbox(interp,canvasPtr,ip,&geom) != TCL_OK
|
|| LayoutSetNodeBBox(graph,ip,geom) != TCL_OK) {
|
|| LayoutSetNodeBBox(graph,ip,geom) != TCL_OK) {
|
Tcl_AppendResult(interp, "could not get node location", (char *) NULL);
|
Tcl_AppendResult(interp, "could not get node location", (char *) NULL);
|
goto error;
|
goto error;
|
}
|
}
|
}
|
}
|
for(i=0;LayoutGetIthEdge(graph,i,(pItem*)&ip)==TCL_OK;i++) {
|
for(i=0;LayoutGetIthEdge(graph,i,(pItem*)&ip)==TCL_OK;i++) {
|
ItemGeom geom;
|
ItemGeom geom;
|
if(getedgedim(canvasPtr,ip,&geom) != TCL_OK
|
if(getedgedim(canvasPtr,ip,&geom) != TCL_OK
|
|| LayoutSetEdgeDim(graph,ip,geom) != TCL_OK) {
|
|| LayoutSetEdgeDim(graph,ip,geom) != TCL_OK) {
|
Tcl_AppendResult(interp, "could not get edge location", (char *) NULL);
|
Tcl_AppendResult(interp, "could not get edge location", (char *) NULL);
|
goto error;
|
goto error;
|
}
|
}
|
}
|
}
|
|
|
if(argc > 3) which = argv[3]; else which = "isi";
|
if(argc > 3) which = argv[3]; else which = "isi";
|
if(strcmp(which,"tree")==0) {
|
if(strcmp(which,"tree")==0) {
|
if(LayoutTree(graph) == TCL_ERROR) {
|
if(LayoutTree(graph) == TCL_ERROR) {
|
Tcl_AppendResult(interp, "layout failed",(char *) NULL);
|
Tcl_AppendResult(interp, "layout failed",(char *) NULL);
|
goto error;
|
goto error;
|
}
|
}
|
} else if(strcmp(which,"isi")==0) {
|
} else if(strcmp(which,"isi")==0) {
|
if(LayoutISI(graph) == TCL_ERROR) {
|
if(LayoutISI(graph) == TCL_ERROR) {
|
Tcl_AppendResult(interp, "layout failed",(char *) NULL);
|
Tcl_AppendResult(interp, "layout failed",(char *) NULL);
|
goto error;
|
goto error;
|
}
|
}
|
} else if(strcmp(which,"matrix")==0) {
|
} else if(strcmp(which,"matrix")==0) {
|
if(LayoutMatrix(graph) == TCL_ERROR) {
|
if(LayoutMatrix(graph) == TCL_ERROR) {
|
Tcl_AppendResult(interp, "layout failed",(char *) NULL);
|
Tcl_AppendResult(interp, "layout failed",(char *) NULL);
|
goto error;
|
goto error;
|
}
|
}
|
} else if(strcmp(which,"random")==0) {
|
} else if(strcmp(which,"random")==0) {
|
if(LayoutRandom(graph) == TCL_ERROR) {
|
if(LayoutRandom(graph) == TCL_ERROR) {
|
Tcl_AppendResult(interp, "layout failed",(char *) NULL);
|
Tcl_AppendResult(interp, "layout failed",(char *) NULL);
|
goto error;
|
goto error;
|
}
|
}
|
} else {
|
} else {
|
Tcl_AppendResult(interp, "unknown layout algorithm", which, (char *) NULL);
|
Tcl_AppendResult(interp, "unknown layout algorithm", which, (char *) NULL);
|
goto error;
|
goto error;
|
}
|
}
|
/* move the various items into place after layout */
|
/* move the various items into place after layout */
|
for(i=0;LayoutGetIthNode(graph,i,(pItem*)&ip)==TCL_OK;i++) {
|
for(i=0;LayoutGetIthNode(graph,i,(pItem*)&ip)==TCL_OK;i++) {
|
ItemGeom geom;
|
ItemGeom geom;
|
if(LayoutGetNodeBBox(graph,ip,&geom) != TCL_OK
|
if(LayoutGetNodeBBox(graph,ip,&geom) != TCL_OK
|
|| setnodegeom(interp,canvasPtr,ip,geom) != TCL_OK) {
|
|| setnodegeom(interp,canvasPtr,ip,geom) != TCL_OK) {
|
Tcl_AppendResult(interp, "could not set node location", (char *) NULL);
|
Tcl_AppendResult(interp, "could not set node location", (char *) NULL);
|
goto error;
|
goto error;
|
}
|
}
|
}
|
}
|
for(i=0;LayoutGetIthEdge(graph,i,(pItem*)&ip)==TCL_OK;i++) {
|
for(i=0;LayoutGetIthEdge(graph,i,(pItem*)&ip)==TCL_OK;i++) {
|
ItemGeom geom;
|
ItemGeom geom;
|
if(LayoutGetEdgeEndPoints(graph,ip,&geom) != TCL_OK
|
if(LayoutGetEdgeEndPoints(graph,ip,&geom) != TCL_OK
|
|| setedgegeom(interp,canvasPtr,ip,geom,i) != TCL_OK) {
|
|| setedgegeom(interp,canvasPtr,ip,geom,i) != TCL_OK) {
|
Tcl_AppendResult(interp, "could not set edge location", (char *) NULL);
|
Tcl_AppendResult(interp, "could not set edge location", (char *) NULL);
|
goto error;
|
goto error;
|
}
|
}
|
}
|
}
|
} else if ((c == 'n') && (strncmp(argv[2], "nodes", length) == 0)) {
|
} else if ((c == 'n') && (strncmp(argv[2], "nodes", length) == 0)) {
|
Tk_Item* ip;
|
Tk_Item* ip;
|
Layout_Graph *graph = GetGraphLayout(&canvCmd, interp);
|
Layout_Graph *graph = GetGraphLayout(&canvCmd, interp);
|
|
|
/* return list of nodes associated with graph */
|
/* return list of nodes associated with graph */
|
if(!graph) goto done;
|
if(!graph) goto done;
|
for(i=0;LayoutGetIthNode(graph,i,(pItem*)&ip)==TCL_OK;i++) {
|
for(i=0;LayoutGetIthNode(graph,i,(pItem*)&ip)==TCL_OK;i++) {
|
char convertbuffer[20];
|
char convertbuffer[20];
|
sprintf(convertbuffer, "%d", ip->id);
|
sprintf(convertbuffer, "%d", ip->id);
|
Tcl_AppendElement(interp,convertbuffer);
|
Tcl_AppendElement(interp,convertbuffer);
|
}
|
}
|
} else if ((c == 'r') && (strncmp(argv[2], "remove", length) == 0)) {
|
} else if ((c == 'r') && (strncmp(argv[2], "remove", length) == 0)) {
|
char* nm;
|
char* nm;
|
Tk_Item *itemPtr;
|
Tk_Item *itemPtr;
|
TagSearch search;
|
TagSearch search;
|
Layout_Graph *graph = GetGraphLayout(&canvCmd, interp);
|
Layout_Graph *graph = GetGraphLayout(&canvCmd, interp);
|
|
|
if(!graph) goto done;
|
if(!graph) goto done;
|
for (i = 3; i < argc; i++) {
|
for (i = 3; i < argc; i++) {
|
for (itemPtr = StartTagSearch(canvasPtr, argv[i], &search);
|
for (itemPtr = StartTagSearch(canvasPtr, argv[i], &search);
|
itemPtr != NULL; itemPtr = NextItem(&search)) {
|
itemPtr != NULL; itemPtr = NextItem(&search)) {
|
nm = itemPtr->typePtr->name;
|
nm = itemPtr->typePtr->name;
|
/* delete a new edge or node */
|
/* delete a new edge or node */
|
if(strcmp(nm,"edge") == 0) {
|
if(strcmp(nm,"edge") == 0) {
|
(void)LayoutDeleteEdge(graph,itemPtr);
|
(void)LayoutDeleteEdge(graph,itemPtr);
|
} else { /* not an edge; assume a node */
|
} else { /* not an edge; assume a node */
|
(void)LayoutDeleteNode(graph,itemPtr);
|
(void)LayoutDeleteNode(graph,itemPtr);
|
}
|
}
|
}
|
}
|
}
|
}
|
} else {
|
} else {
|
Tcl_AppendResult(interp, "bad option \"", argv[2],
|
Tcl_AppendResult(interp, "bad option \"", argv[2],
|
"\": must be add, configure, clear, ",
|
"\": must be add, configure, clear, ",
|
"destroy, edges, layout, nodes, remove",
|
"destroy, edges, layout, nodes, remove",
|
(char *) NULL);
|
(char *) NULL);
|
goto error;
|
goto error;
|
}
|
}
|
done:
|
done:
|
return TCL_OK;
|
return TCL_OK;
|
error:
|
error:
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
|
|
/* If graph is deleted, make it go away */
|
/* If graph is deleted, make it go away */
|
static void
|
static void
|
delete_graph_command(ClientData clientData, Tcl_Interp *interp)
|
delete_graph_command(ClientData clientData, Tcl_Interp *interp)
|
{
|
{
|
Tcl_DeleteHashTable((Tcl_HashTable *) clientData);
|
Tcl_DeleteHashTable((Tcl_HashTable *) clientData);
|
|
|
ckfree ((char*) clientData);
|
ckfree ((char*) clientData);
|
}
|
}
|
|
|
/*
|
/*
|
*-------------------------------------------------------------
|
*-------------------------------------------------------------
|
* GraphLayoutInit()
|
* GraphLayoutInit()
|
* Adds appropriate commands to Tcl interpreter, and
|
* Adds appropriate commands to Tcl interpreter, and
|
* inits necessary tables.
|
* inits necessary tables.
|
*-------------------------------------------------------------
|
*-------------------------------------------------------------
|
*/
|
*/
|
int
|
int
|
create_graph_command(Tcl_Interp *interp)
|
create_graph_command(Tcl_Interp *interp)
|
{
|
{
|
Tcl_HashTable *graphTable= (Tcl_HashTable*)ckalloc (sizeof (Tcl_HashTable));
|
Tcl_HashTable *graphTable= (Tcl_HashTable*)ckalloc (sizeof (Tcl_HashTable));
|
|
|
Tcl_InitHashTable(graphTable, TCL_ONE_WORD_KEYS);
|
Tcl_InitHashTable(graphTable, TCL_ONE_WORD_KEYS);
|
|
|
/*
|
/*
|
* Create an associated data that stores the
|
* Create an associated data that stores the
|
* hash table
|
* hash table
|
*/
|
*/
|
Tcl_SetAssocData (interp, "canvasgraph",
|
Tcl_SetAssocData (interp, "canvasgraph",
|
delete_graph_command,
|
delete_graph_command,
|
(void*) graphTable);
|
(void*) graphTable);
|
|
|
allUid = Tk_GetUid("all");
|
allUid = Tk_GetUid("all");
|
|
|
if (Tcl_CreateCommand(interp, "graph", GraphCanvasCmd,
|
if (Tcl_CreateCommand(interp, "graph", GraphCanvasCmd,
|
NULL, NULL /*delete_graph_command*/ ) == NULL)
|
NULL, NULL /*delete_graph_command*/ ) == NULL)
|
return TCL_ERROR;
|
return TCL_ERROR;
|
|
|
Tk_CreateItemType(&tkEdgeType);
|
Tk_CreateItemType(&tkEdgeType);
|
|
|
return TCL_OK;
|
return TCL_OK;
|
}
|
}
|
|
|
/*
|
/*
|
*--------------------------------------------------------------
|
*--------------------------------------------------------------
|
*
|
*
|
* StartTagSearch --
|
* StartTagSearch --
|
*
|
*
|
* This procedure is called to initiate an enumeration of
|
* This procedure is called to initiate an enumeration of
|
* all items in a given canvas that contain a given tag.
|
* all items in a given canvas that contain a given tag.
|
*
|
*
|
* Results:
|
* Results:
|
* The return value is a pointer to the first item in
|
* The return value is a pointer to the first item in
|
* canvasPtr that matches tag, or NULL if there is no
|
* canvasPtr that matches tag, or NULL if there is no
|
* such item. The information at *searchPtr is initialized
|
* such item. The information at *searchPtr is initialized
|
* such that successive calls to NextItem will return
|
* such that successive calls to NextItem will return
|
* successive items that match tag.
|
* successive items that match tag.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* SearchPtr is linked into a list of searches in progress
|
* SearchPtr is linked into a list of searches in progress
|
* on canvasPtr, so that elements can safely be deleted
|
* on canvasPtr, so that elements can safely be deleted
|
* while the search is in progress. EndTagSearch must be
|
* while the search is in progress. EndTagSearch must be
|
* called at the end of the search to unlink searchPtr from
|
* called at the end of the search to unlink searchPtr from
|
* this list.
|
* this list.
|
*
|
*
|
*--------------------------------------------------------------
|
*--------------------------------------------------------------
|
*/
|
*/
|
|
|
static Tk_Item *
|
static Tk_Item *
|
StartTagSearch(canvasPtr, tag, searchPtr)
|
StartTagSearch(canvasPtr, tag, searchPtr)
|
TkCanvas *canvasPtr; /* Canvas whose items are to be
|
TkCanvas *canvasPtr; /* Canvas whose items are to be
|
* searched. */
|
* searched. */
|
char *tag; /* String giving tag value. */
|
char *tag; /* String giving tag value. */
|
TagSearch *searchPtr; /* Record describing tag search;
|
TagSearch *searchPtr; /* Record describing tag search;
|
* will be initialized here. */
|
* will be initialized here. */
|
{
|
{
|
int id;
|
int id;
|
Tk_Item *itemPtr, *prevPtr;
|
Tk_Item *itemPtr, *prevPtr;
|
Tk_Uid *tagPtr;
|
Tk_Uid *tagPtr;
|
Tk_Uid uid;
|
Tk_Uid uid;
|
int count;
|
int count;
|
|
|
/*
|
/*
|
* Initialize the search.
|
* Initialize the search.
|
*/
|
*/
|
|
|
searchPtr->canvasPtr = canvasPtr;
|
searchPtr->canvasPtr = canvasPtr;
|
searchPtr->searchOver = 0;
|
searchPtr->searchOver = 0;
|
|
|
/*
|
/*
|
* Find the first matching item in one of several ways. If the tag
|
* Find the first matching item in one of several ways. If the tag
|
* is a number then it selects the single item with the matching
|
* is a number then it selects the single item with the matching
|
* identifier. In this case see if the item being requested is the
|
* identifier. In this case see if the item being requested is the
|
* hot item, in which case the search can be skipped.
|
* hot item, in which case the search can be skipped.
|
*/
|
*/
|
|
|
if (isdigit(UCHAR(*tag))) {
|
if (isdigit(UCHAR(*tag))) {
|
char *end;
|
char *end;
|
|
|
id = strtoul(tag, &end, 0);
|
id = strtoul(tag, &end, 0);
|
if (*end == 0) {
|
if (*end == 0) {
|
itemPtr = canvasPtr->hotPtr;
|
itemPtr = canvasPtr->hotPtr;
|
prevPtr = canvasPtr->hotPrevPtr;
|
prevPtr = canvasPtr->hotPrevPtr;
|
if ((itemPtr == NULL) || (itemPtr->id != id) || (prevPtr == NULL)
|
if ((itemPtr == NULL) || (itemPtr->id != id) || (prevPtr == NULL)
|
|| (prevPtr->nextPtr != itemPtr)) {
|
|| (prevPtr->nextPtr != itemPtr)) {
|
for (prevPtr = NULL, itemPtr = canvasPtr->firstItemPtr;
|
for (prevPtr = NULL, itemPtr = canvasPtr->firstItemPtr;
|
itemPtr != NULL;
|
itemPtr != NULL;
|
prevPtr = itemPtr, itemPtr = itemPtr->nextPtr) {
|
prevPtr = itemPtr, itemPtr = itemPtr->nextPtr) {
|
if (itemPtr->id == id) {
|
if (itemPtr->id == id) {
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
searchPtr->prevPtr = prevPtr;
|
searchPtr->prevPtr = prevPtr;
|
searchPtr->searchOver = 1;
|
searchPtr->searchOver = 1;
|
canvasPtr->hotPtr = itemPtr;
|
canvasPtr->hotPtr = itemPtr;
|
canvasPtr->hotPrevPtr = prevPtr;
|
canvasPtr->hotPrevPtr = prevPtr;
|
return itemPtr;
|
return itemPtr;
|
}
|
}
|
}
|
}
|
|
|
searchPtr->tag = uid = Tk_GetUid(tag);
|
searchPtr->tag = uid = Tk_GetUid(tag);
|
if (uid == allUid) {
|
if (uid == allUid) {
|
|
|
/*
|
/*
|
* All items match.
|
* All items match.
|
*/
|
*/
|
|
|
searchPtr->tag = NULL;
|
searchPtr->tag = NULL;
|
searchPtr->prevPtr = NULL;
|
searchPtr->prevPtr = NULL;
|
searchPtr->currentPtr = canvasPtr->firstItemPtr;
|
searchPtr->currentPtr = canvasPtr->firstItemPtr;
|
return canvasPtr->firstItemPtr;
|
return canvasPtr->firstItemPtr;
|
}
|
}
|
|
|
/*
|
/*
|
* None of the above. Search for an item with a matching tag.
|
* None of the above. Search for an item with a matching tag.
|
*/
|
*/
|
|
|
for (prevPtr = NULL, itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL;
|
for (prevPtr = NULL, itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL;
|
prevPtr = itemPtr, itemPtr = itemPtr->nextPtr) {
|
prevPtr = itemPtr, itemPtr = itemPtr->nextPtr) {
|
for (tagPtr = itemPtr->tagPtr, count = itemPtr->numTags;
|
for (tagPtr = itemPtr->tagPtr, count = itemPtr->numTags;
|
count > 0; tagPtr++, count--) {
|
count > 0; tagPtr++, count--) {
|
if (*tagPtr == uid) {
|
if (*tagPtr == uid) {
|
searchPtr->prevPtr = prevPtr;
|
searchPtr->prevPtr = prevPtr;
|
searchPtr->currentPtr = itemPtr;
|
searchPtr->currentPtr = itemPtr;
|
return itemPtr;
|
return itemPtr;
|
}
|
}
|
}
|
}
|
}
|
}
|
searchPtr->prevPtr = prevPtr;
|
searchPtr->prevPtr = prevPtr;
|
searchPtr->searchOver = 1;
|
searchPtr->searchOver = 1;
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/*
|
/*
|
*--------------------------------------------------------------
|
*--------------------------------------------------------------
|
*
|
*
|
* NextItem --
|
* NextItem --
|
*
|
*
|
* This procedure returns successive items that match a given
|
* This procedure returns successive items that match a given
|
* tag; it should be called only after StartTagSearch has been
|
* tag; it should be called only after StartTagSearch has been
|
* used to begin a search.
|
* used to begin a search.
|
*
|
*
|
* Results:
|
* Results:
|
* The return value is a pointer to the next item that matches
|
* The return value is a pointer to the next item that matches
|
* the tag specified to StartTagSearch, or NULL if no such
|
* the tag specified to StartTagSearch, or NULL if no such
|
* item exists. *SearchPtr is updated so that the next call
|
* item exists. *SearchPtr is updated so that the next call
|
* to this procedure will return the next item.
|
* to this procedure will return the next item.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* None.
|
* None.
|
*
|
*
|
*--------------------------------------------------------------
|
*--------------------------------------------------------------
|
*/
|
*/
|
|
|
static Tk_Item *
|
static Tk_Item *
|
NextItem(searchPtr)
|
NextItem(searchPtr)
|
TagSearch *searchPtr; /* Record describing search in
|
TagSearch *searchPtr; /* Record describing search in
|
* progress. */
|
* progress. */
|
{
|
{
|
Tk_Item *itemPtr, *prevPtr;
|
Tk_Item *itemPtr, *prevPtr;
|
int count;
|
int count;
|
Tk_Uid uid;
|
Tk_Uid uid;
|
Tk_Uid *tagPtr;
|
Tk_Uid *tagPtr;
|
|
|
/*
|
/*
|
* Find next item in list (this may not actually be a suitable
|
* Find next item in list (this may not actually be a suitable
|
* one to return), and return if there are no items left.
|
* one to return), and return if there are no items left.
|
*/
|
*/
|
|
|
prevPtr = searchPtr->prevPtr;
|
prevPtr = searchPtr->prevPtr;
|
if (prevPtr == NULL) {
|
if (prevPtr == NULL) {
|
itemPtr = searchPtr->canvasPtr->firstItemPtr;
|
itemPtr = searchPtr->canvasPtr->firstItemPtr;
|
} else {
|
} else {
|
itemPtr = prevPtr->nextPtr;
|
itemPtr = prevPtr->nextPtr;
|
}
|
}
|
if ((itemPtr == NULL) || (searchPtr->searchOver)) {
|
if ((itemPtr == NULL) || (searchPtr->searchOver)) {
|
searchPtr->searchOver = 1;
|
searchPtr->searchOver = 1;
|
return NULL;
|
return NULL;
|
}
|
}
|
if (itemPtr != searchPtr->currentPtr) {
|
if (itemPtr != searchPtr->currentPtr) {
|
/*
|
/*
|
* The structure of the list has changed. Probably the
|
* The structure of the list has changed. Probably the
|
* previously-returned item was removed from the list.
|
* previously-returned item was removed from the list.
|
* In this case, don't advance prevPtr; just return
|
* In this case, don't advance prevPtr; just return
|
* its new successor (i.e. do nothing here).
|
* its new successor (i.e. do nothing here).
|
*/
|
*/
|
} else {
|
} else {
|
prevPtr = itemPtr;
|
prevPtr = itemPtr;
|
itemPtr = prevPtr->nextPtr;
|
itemPtr = prevPtr->nextPtr;
|
}
|
}
|
|
|
/*
|
/*
|
* Handle special case of "all" search by returning next item.
|
* Handle special case of "all" search by returning next item.
|
*/
|
*/
|
|
|
uid = searchPtr->tag;
|
uid = searchPtr->tag;
|
if (uid == NULL) {
|
if (uid == NULL) {
|
searchPtr->prevPtr = prevPtr;
|
searchPtr->prevPtr = prevPtr;
|
searchPtr->currentPtr = itemPtr;
|
searchPtr->currentPtr = itemPtr;
|
return itemPtr;
|
return itemPtr;
|
}
|
}
|
|
|
/*
|
/*
|
* Look for an item with a particular tag.
|
* Look for an item with a particular tag.
|
*/
|
*/
|
|
|
for ( ; itemPtr != NULL; prevPtr = itemPtr, itemPtr = itemPtr->nextPtr) {
|
for ( ; itemPtr != NULL; prevPtr = itemPtr, itemPtr = itemPtr->nextPtr) {
|
for (tagPtr = itemPtr->tagPtr, count = itemPtr->numTags;
|
for (tagPtr = itemPtr->tagPtr, count = itemPtr->numTags;
|
count > 0; tagPtr++, count--) {
|
count > 0; tagPtr++, count--) {
|
if (*tagPtr == uid) {
|
if (*tagPtr == uid) {
|
searchPtr->prevPtr = prevPtr;
|
searchPtr->prevPtr = prevPtr;
|
searchPtr->currentPtr = itemPtr;
|
searchPtr->currentPtr = itemPtr;
|
return itemPtr;
|
return itemPtr;
|
}
|
}
|
}
|
}
|
}
|
}
|
searchPtr->prevPtr = prevPtr;
|
searchPtr->prevPtr = prevPtr;
|
searchPtr->searchOver = 1;
|
searchPtr->searchOver = 1;
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
