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Diffstat (limited to 'generic/tkbltGrMarkerOp.C')
| -rw-r--r-- | generic/tkbltGrMarkerOp.C | 458 |
1 files changed, 458 insertions, 0 deletions
diff --git a/generic/tkbltGrMarkerOp.C b/generic/tkbltGrMarkerOp.C new file mode 100644 index 0000000..20933ab --- /dev/null +++ b/generic/tkbltGrMarkerOp.C @@ -0,0 +1,458 @@ +/* + * 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 1993-2004 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. + */ + +#include <string.h> + +#include "tkbltGrBind.h" +#include "tkbltGraph.h" +#include "tkbltGrElem.h" +#include "tkbltGrMarkerOp.h" +#include "tkbltGrMarker.h" +#include "tkbltGrMarkerLine.h" +#include "tkbltGrMarkerPolygon.h" +#include "tkbltGrMarkerText.h" + +using namespace Blt; + +static int GetMarkerFromObj(Tcl_Interp* interp, Graph* graphPtr, + Tcl_Obj* objPtr, Marker** markerPtrPtr); + +#define FIND_ENCLOSED (1<<0) +#define FIND_OVERLAPPING (1<<1) + +static int MarkerObjConfigure( Graph* graphPtr,Marker* markerPtr, + Tcl_Interp* interp, + int objc, Tcl_Obj* const objv[]) +{ + Tk_SavedOptions savedOptions; + int mask =0; + int error; + Tcl_Obj* errorResult; + + for (error=0; error<=1; error++) { + if (!error) { + if (Tk_SetOptions(interp, (char*)markerPtr->ops(), + markerPtr->optionTable(), + objc, objv, graphPtr->tkwin_, &savedOptions, &mask) + != TCL_OK) + continue; + } + else { + errorResult = Tcl_GetObjResult(interp); + Tcl_IncrRefCount(errorResult); + Tk_RestoreSavedOptions(&savedOptions); + } + + markerPtr->flags |= MAP_ITEM; + if (markerPtr->configure() != TCL_OK) + return TCL_ERROR; + + MarkerOptions* ops = (MarkerOptions*)markerPtr->ops(); + if (ops->drawUnder) + graphPtr->flags |= CACHE; + graphPtr->flags |= mask; + graphPtr->eventuallyRedraw(); + + break; + } + + if (!error) { + Tk_FreeSavedOptions(&savedOptions); + return TCL_OK; + } + else { + Tcl_SetObjResult(interp, errorResult); + Tcl_DecrRefCount(errorResult); + return TCL_ERROR; + } +} + +static int CreateMarker(Graph* graphPtr, Tcl_Interp* interp, + int objc, Tcl_Obj* const objv[]) +{ + int offset = 5; + const char* name =NULL; + ostringstream str; + if (objc == 4) { + offset = 4; + str << "marker" << graphPtr->nextMarkerId_++ << ends; + name = dupstr(str.str().c_str()); + } + else { + name = dupstr(Tcl_GetString(objv[4])); + if (name[0] == '-') { + delete [] name; + offset = 4; + str << "marker" << graphPtr->nextMarkerId_++ << ends; + name = dupstr(str.str().c_str()); + } + } + + int isNew; + Tcl_HashEntry* hPtr = + Tcl_CreateHashEntry(&graphPtr->markers_.table, name, &isNew); + if (!isNew) { + Tcl_AppendResult(graphPtr->interp_, "marker \"", name, + "\" already exists in \"", Tcl_GetString(objv[0]), + "\"", NULL); + return TCL_ERROR; + } + + const char* type = Tcl_GetString(objv[3]); + Marker* markerPtr; + if (!strcmp(type, "line")) + markerPtr = new LineMarker(graphPtr, name, hPtr); + else if (!strcmp(type, "polygon")) + markerPtr = new PolygonMarker(graphPtr, name, hPtr); + else if (!strcmp(type, "text")) + markerPtr = new TextMarker(graphPtr, name, hPtr); + else { + Tcl_AppendResult(interp, "unknown marker type ", type, NULL); + return TCL_ERROR; + } + + Tcl_SetHashValue(hPtr, markerPtr); + + if ((Tk_InitOptions(graphPtr->interp_, (char*)markerPtr->ops(), markerPtr->optionTable(), graphPtr->tkwin_) != TCL_OK) || (MarkerObjConfigure(graphPtr, markerPtr, interp, objc-offset, objv+offset) != TCL_OK)) { + delete markerPtr; + return TCL_ERROR; + } + + // Unlike elements, new markers are drawn on top of old markers + markerPtr->link = graphPtr->markers_.displayList->prepend(markerPtr); + + Tcl_SetStringObj(Tcl_GetObjResult(interp), name, -1); + + delete [] name; + return TCL_OK; +} + +static int CgetOp(ClientData clientData, Tcl_Interp* interp, + int objc, Tcl_Obj* const objv[]) +{ + Graph* graphPtr = (Graph*)clientData; + if (objc<4) + return TCL_ERROR; + + Marker* markerPtr; + if (GetMarkerFromObj(interp, graphPtr, objv[3], &markerPtr) != TCL_OK) + return TCL_ERROR; + + Tcl_Obj* objPtr = Tk_GetOptionValue(interp, + (char*)markerPtr->ops(), + markerPtr->optionTable(), + objv[4], graphPtr->tkwin_); + if (objPtr == NULL) + return TCL_ERROR; + else + Tcl_SetObjResult(interp, objPtr); + return TCL_OK; +} + +static int ConfigureOp(ClientData clientData, Tcl_Interp* interp, + int objc, Tcl_Obj* const objv[]) +{ + Graph* graphPtr = (Graph*)clientData; + if (objc<4) + return TCL_ERROR; + + Marker* markerPtr; + if (GetMarkerFromObj(interp, graphPtr, objv[3], &markerPtr) != TCL_OK) + return TCL_ERROR; + + if (objc <= 5) { + Tcl_Obj* objPtr = Tk_GetOptionInfo(interp, (char*)markerPtr->ops(), + markerPtr->optionTable(), + (objc == 5) ? objv[4] : NULL, + graphPtr->tkwin_); + if (objPtr == NULL) + return TCL_ERROR; + else + Tcl_SetObjResult(interp, objPtr); + return TCL_OK; + } + else + return MarkerObjConfigure(graphPtr, markerPtr, interp, objc-4, objv+4); +} + +static int BindOp(ClientData clientData, Tcl_Interp* interp, + int objc, Tcl_Obj* const objv[]) +{ + Graph* graphPtr = (Graph*)clientData; + if (objc == 3) { + Tcl_Obj *listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **)NULL); + Tcl_HashSearch iter; + for (Tcl_HashEntry* hp = + Tcl_FirstHashEntry(&graphPtr->markers_.tagTable, &iter); + hp; hp = Tcl_NextHashEntry(&iter)) { + + const char* tag = + (const char*)Tcl_GetHashKey(&graphPtr->markers_.tagTable, hp); + Tcl_Obj* objPtr = Tcl_NewStringObj(tag, -1); + Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); + } + Tcl_SetObjResult(interp, listObjPtr); + return TCL_OK; + } + + return graphPtr->bindTable_->configure(graphPtr->markerTag(Tcl_GetString(objv[3])), objc - 4, objv + 4); +} + +static int CreateOp(ClientData clientData, Tcl_Interp* interp, + int objc, Tcl_Obj* const objv[]) +{ + Graph* graphPtr = (Graph*)clientData; + if (CreateMarker(graphPtr, interp, objc, objv) != TCL_OK) + return TCL_ERROR; + // set in CreateMarker + // Tcl_SetObjResult(interp, objv[3]); + + graphPtr->flags |= CACHE; + graphPtr->eventuallyRedraw(); + + return TCL_OK; +} + +static int DeleteOp(ClientData clientData, Tcl_Interp* interp, + int objc, Tcl_Obj* const objv[]) +{ + Graph* graphPtr = (Graph*)clientData; + for (int ii=3; ii<objc; ii++) { + Marker* markerPtr; + if (GetMarkerFromObj(NULL, graphPtr, objv[ii], &markerPtr) != TCL_OK) { + Tcl_AppendResult(interp, "can't find marker \"", + Tcl_GetString(objv[ii]), "\" in \"", + Tk_PathName(graphPtr->tkwin_), "\"", NULL); + return TCL_ERROR; + } + delete markerPtr; + } + + graphPtr->flags |= CACHE; + graphPtr->eventuallyRedraw(); + + return TCL_OK; +} + +static int ExistsOp(ClientData clientData, Tcl_Interp* interp, + int objc, Tcl_Obj* const objv[]) +{ + Graph* graphPtr = (Graph*)clientData; + if (objc<4) + return TCL_ERROR; + + Tcl_HashEntry* hPtr = + Tcl_FindHashEntry(&graphPtr->markers_.table, Tcl_GetString(objv[3])); + Tcl_SetBooleanObj(Tcl_GetObjResult(interp), (hPtr != NULL)); + + return TCL_OK; +} + +static int FindOp(ClientData clientData, Tcl_Interp* interp, + int objc, Tcl_Obj* const objv[]) +{ + Graph* graphPtr = (Graph*)clientData; + if (objc<4) + return TCL_ERROR; + + const char* string = Tcl_GetString(objv[3]); + int mode; + if (strcmp(string, "enclosed") == 0) + mode = FIND_ENCLOSED; + else if (strcmp(string, "overlapping") == 0) + mode = FIND_OVERLAPPING; + else { + Tcl_AppendResult(interp, "bad search type \"", string, + ": should be \"enclosed\", or \"overlapping\"", + NULL); + return TCL_ERROR; + } + + int left, right, top, bottom; + if ((Tcl_GetIntFromObj(interp, objv[4], &left) != TCL_OK) || + (Tcl_GetIntFromObj(interp, objv[5], &top) != TCL_OK) || + (Tcl_GetIntFromObj(interp, objv[6], &right) != TCL_OK) || + (Tcl_GetIntFromObj(interp, objv[7], &bottom) != TCL_OK)) { + return TCL_ERROR; + } + + Region2d extents; + if (left < right) { + extents.left = (double)left; + extents.right = (double)right; + } + else { + extents.left = (double)right; + extents.right = (double)left; + } + if (top < bottom) { + extents.top = (double)top; + extents.bottom = (double)bottom; + } + else { + extents.top = (double)bottom; + extents.bottom = (double)top; + } + + int enclosed = (mode == FIND_ENCLOSED); + for (ChainLink* link = Chain_FirstLink(graphPtr->markers_.displayList); + link; link = Chain_NextLink(link)) { + Marker* markerPtr = (Marker*)Chain_GetValue(link); + MarkerOptions* ops = (MarkerOptions*)markerPtr->ops(); + if (ops->hide) + continue; + + if (graphPtr->isElementHidden(markerPtr)) + continue; + + if (markerPtr->regionIn(&extents, enclosed)) { + Tcl_Obj* objPtr = Tcl_GetObjResult(interp); + Tcl_SetStringObj(objPtr, markerPtr->name_, -1); + return TCL_OK; + } + } + + Tcl_SetStringObj(Tcl_GetObjResult(interp), "", -1); + return TCL_OK; +} + +static int NamesOp(ClientData clientData, Tcl_Interp* interp, + int objc, Tcl_Obj* const objv[]) +{ + Graph* graphPtr = (Graph*)clientData; + Tcl_Obj* listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **)NULL); + if (objc == 3) { + for (ChainLink* link=Chain_FirstLink(graphPtr->markers_.displayList); + link; link = Chain_NextLink(link)) { + Marker* markerPtr = (Marker*)Chain_GetValue(link); + Tcl_ListObjAppendElement(interp, listObjPtr, + Tcl_NewStringObj(markerPtr->name_, -1)); + } + } + else { + for (ChainLink* link=Chain_FirstLink(graphPtr->markers_.displayList); + link; link = Chain_NextLink(link)) { + Marker* markerPtr = (Marker*)Chain_GetValue(link); + for (int ii = 3; ii<objc; ii++) { + const char* pattern = (const char*)Tcl_GetString(objv[ii]); + if (Tcl_StringMatch(markerPtr->name_, pattern)) { + Tcl_ListObjAppendElement(interp, listObjPtr, + Tcl_NewStringObj(markerPtr->name_, -1)); + break; + } + } + } + } + + Tcl_SetObjResult(interp, listObjPtr); + return TCL_OK; +} + +static int RelinkOp(ClientData clientData, Tcl_Interp* interp, + int objc, Tcl_Obj* const objv[]) +{ + Graph* graphPtr = (Graph*)clientData; + if (objc<4) + return TCL_ERROR; + + Marker* markerPtr; + if (GetMarkerFromObj(interp, graphPtr, objv[3], &markerPtr) != TCL_OK) + return TCL_ERROR; + + Marker* placePtr =NULL; + if (objc == 5) + if (GetMarkerFromObj(interp, graphPtr, objv[4], &placePtr) != TCL_OK) + return TCL_ERROR; + + ChainLink* link = markerPtr->link; + graphPtr->markers_.displayList->unlinkLink(markerPtr->link); + + ChainLink* place = placePtr ? placePtr->link : NULL; + + const char* string = Tcl_GetString(objv[2]); + if (string[0] == 'l') + graphPtr->markers_.displayList->linkAfter(link, place); + else + graphPtr->markers_.displayList->linkBefore(link, place); + + graphPtr->flags |= CACHE; + graphPtr->eventuallyRedraw(); + + return TCL_OK; +} + +static int TypeOp(ClientData clientData, Tcl_Interp* interp, + int objc, Tcl_Obj* const objv[]) +{ + Graph* graphPtr = (Graph*)clientData; + if (objc<4) + return TCL_ERROR; + + Marker* markerPtr; + if (GetMarkerFromObj(interp, graphPtr, objv[3], &markerPtr) != TCL_OK) + return TCL_ERROR; + + Tcl_SetStringObj(Tcl_GetObjResult(interp), markerPtr->typeName(), -1); + return TCL_OK; +} + +const Ensemble Blt::markerEnsemble[] = { + {"bind", BindOp, 0}, + {"cget", CgetOp, 0}, + {"configure", ConfigureOp, 0}, + {"create", CreateOp, 0}, + {"delete", DeleteOp, 0}, + {"exists", ExistsOp, 0}, + {"find", FindOp, 0}, + {"lower", RelinkOp, 0}, + {"names", NamesOp, 0}, + {"raise", RelinkOp, 0}, + {"type", TypeOp, 0}, + { 0,0,0 } +}; + +// Support + +static int GetMarkerFromObj(Tcl_Interp* interp, Graph* graphPtr, + Tcl_Obj *objPtr, Marker** markerPtrPtr) +{ + const char* string = Tcl_GetString(objPtr); + Tcl_HashEntry* hPtr = Tcl_FindHashEntry(&graphPtr->markers_.table, string); + if (hPtr) { + *markerPtrPtr = (Marker*)Tcl_GetHashValue(hPtr); + return TCL_OK; + } + if (interp) { + Tcl_AppendResult(interp, "can't find marker \"", string, + "\" in \"", Tk_PathName(graphPtr->tkwin_), NULL); + } + + return TCL_ERROR; +} + |