ObjectARX学习笔记(十八)---如何给对象添加xData
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- // (C) Copyright 1996-2008 by Autodesk, Inc.
- //
- // Permission to use, copy, modify, and distribute this software in
- // object code form for any purpose and without fee is hereby granted,
- // provided that the above copyright notice appears in all copies and
- // that both that copyright notice and the limited warranty and
- // restricted rights notice below appear in all supporting
- // documentation.
- //
- // AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
- // AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
- // MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
- // DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
- // UNINTERRUPTED OR ERROR FREE.
- //
- // Use, duplication, or disclosure by the U.S. Government is subject to
- // restrictions set forth in FAR 52.227-19 (Commercial Computer
- // Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
- // (Rights in Technical Data and Computer Software), as applicable.
- //
- // Description:
- //
- // This program demonstrates the use of the AcDBObject Xdata
- // member functions.
- #if defined(_DEBUG) && !defined(AC_FULL_DEBUG)
- #error _DEBUG should not be defined except in internal Adesk debug builds
- #endif
- #include <stdlib.h>
- #include <string.h>
- #include <rxobject.h>
- #include <rxregsvc.h>
- #include <aced.h>
- #include <dbsymtb.h>
- #include <adslib.h>
- #include "tchar.h"
- #include "acestext.h"
- void printXdata();
- void addXdata();
- void printList(struct resbuf* pRb);
- AcDbObject* selectObject(AcDb::OpenMode openMode);
- void initApp();
- void unloadApp();
- extern "C"
- AcRx::AppRetCode acrxEntryPoint(AcRx::AppMsgCode, void*);
- // THE FOLLOWING CODE APPEARS IN THE SDK DOCUMENT.
- // This function calls the
- // selectObject() function to allow the user to pick an
- // object; then it accesses the xdata of the object and
- // sends the list to the printList() function that lists the
- // restype and resval values.
- //
- void
- printXdata()
- {
- // Select and open an object.
- //
- AcDbObject *pObj;
- if ((pObj = selectObject(AcDb::kForRead)) == NULL) {
- return;
- }
- // Get the application name for the xdata.
- //
- TCHAR appname[133];
- if (acedGetString(NULL,
- _T("\nEnter the desired Xdata application name: "),
- appname) != RTNORM)
- {
- return;
- }
- // Get the xdata for the application name.
- //
- struct resbuf *pRb;
- pRb = pObj->xData(appname);
- if (pRb != NULL) {
- // Print the existing xdata if any is present.
- // Notice that there is no -3 group, as there is in
- // LISP. This is ONLY the xdata, so
- // the -3 xdata-start marker isn't needed.
- //
- printList(pRb);
- acutRelRb(pRb);
- } else {
- acutPrintf(_T("\nNo xdata for this appname"));
- }
- pObj->close();
- }
- void
- addXdata()
- {
- AcDbObject* pObj = selectObject(AcDb::kForRead);
- if (!pObj) {
- acutPrintf(_T("Error selecting object\n"));
- return;
- }
- // Get the application name and string to be added to
- // xdata.
- //
- TCHAR appName[132], resString[200];
- appName[0] = resString[0] = _T('\0');
- acedGetString(NULL, _T("Enter application name: "),
- appName);
- acedGetString(NULL, _T("Enter string to be added: "),
- resString);
- struct resbuf *pRb, *pTemp;
- pRb = pObj->xData(appName);
- if (pRb != NULL) {
- // If xdata is present, then walk to the
- // end of the list.
- //
- for (pTemp = pRb; pTemp->rbnext != NULL;
- pTemp = pTemp->rbnext)
- { ; }
- } else {
- // If xdata is not present, register the application
- // and add appName to the first resbuf in the list.
- // Notice that there is no -3 group as there is in
- // AutoLISP. This is ONLY the xdata so
- // the -3 xdata-start marker isn't needed.
- //
- acdbRegApp(appName);
- pRb = acutNewRb(AcDb::kDxfRegAppName);
- pTemp = pRb;
- const size_t nSize = _tcslen(appName) + 1;
- pTemp->resval.rstring
- = (TCHAR*) malloc(nSize * sizeof(TCHAR));
- errno_t err = _tcscpy_s(pTemp->resval.rstring, nSize, appName);
- assert(err == 0);
- }
- // Add user-specified string to the xdata.
- //
- pTemp->rbnext = acutNewRb(AcDb::kDxfXdAsciiString);
- pTemp = pTemp->rbnext;
- const size_t nSize = _tcslen(resString) + 1;
- pTemp->resval.rstring
- = (TCHAR*) malloc(nSize * sizeof(TCHAR));
- errno_t err = _tcscpy_s(pTemp->resval.rstring, nSize, resString);
- assert(err == 0);
- // The following code shows the use of upgradeOpen()
- // to change the entity from read to write.
- //
- pObj->upgradeOpen();
- pObj->setXData(pRb);
- pObj->close();
- acutRelRb(pRb);
- }
- // END CODE APPEARING IN SDK DOCUMENT.
- // This function accepts a linked list of resbufs as it's
- // argument and runs through the list printing out the
- // restype and resval values one set per line.
- //
- void
- printList(struct resbuf* pRb)
- {
- int rt, i;
- TCHAR buf[133];
- for (i = 0;pRb != NULL;i++, pRb = pRb->rbnext) {
- if (pRb->restype < 1010) {
- rt = RTSTR;
- } else if (pRb->restype < 1040) {
- rt = RT3DPOINT;
- } else if (pRb->restype < 1060) {
- rt = RTREAL;
- } else if (pRb->restype < 1071) {
- rt = RTSHORT;
- } else if (pRb->restype == 1071) {
- rt = RTLONG;
- } else {// restype is already RTSHORT, RTSTR,...
- rt = pRb->restype; // or else it is unknown.
- }
- switch (rt) {
- case RTSHORT:
- if (pRb->restype == RTSHORT) {
- acutPrintf(
- _T("RTSHORT : %d\n"), pRb->resval.rint);
- } else {
- acutPrintf(_T("(%d . %d)\n"), pRb->restype,
- pRb->resval.rint);
- };
- break;
- case RTREAL:
- if (pRb->restype == RTREAL) {
- acutPrintf(_T("RTREAL : %0.3f\n"),
- pRb->resval.rreal);
- } else {
- acutPrintf(_T("(%d . %0.3f)\n"), pRb->restype,
- pRb->resval.rreal);
- };
- break;
- case RTSTR:
- if (pRb->restype == RTSTR) {
- acutPrintf(_T("RTSTR : %s\n"),
- pRb->resval.rstring);
- } else {
- acutPrintf(_T("(%d . \"%s\")\n"), pRb->restype,
- pRb->resval.rstring);
- };
- break;
- case RT3DPOINT:
- if (pRb->restype == RT3DPOINT) {
- acutPrintf(
- _T("RT3DPOINT : %0.3f, %0.3f, %0.3f\n"),
- pRb->resval.rpoint[X],
- pRb->resval.rpoint[Y],
- pRb->resval.rpoint[Z]);
- } else {
- acutPrintf(_T("(%d %0.3f %0.3f %0.3f)\n"),
- pRb->restype,
- pRb->resval.rpoint[X],
- pRb->resval.rpoint[Y],
- pRb->resval.rpoint[Z]);
- }
- break;
- case RTLONG:
- acutPrintf(_T("RTLONG : %dl\n"), pRb->resval.rlong);
- break;
- }
- if ((i == 23) && (pRb->rbnext != NULL)) {
- i = 0;
- acedGetString(0,
- _T("Press <ENTER> to continue..."), buf);
- }
- }
- }
- // This function prompts the user to select an entity or
- // enter an object's handle. It then proceeds to open the
- // object/entity and return a pointer to it.
- //
- AcDbObject*
- selectObject(AcDb::OpenMode openMode)
- {
- // Allow user to either pick an entity, or type in the
- // object handle.
- //
- int ss;
- ads_name en;
- ads_point pt;
- acedInitGet(RSG_OTHER, _T("Handle _Handle"));
- ss = acedEntSel(_T("\nSelect an Entity or enter")
- _T(" 'H' to enter its handle: "), en, pt);
- TCHAR handleStr[132];
- AcDbObjectId eId;
- switch (ss) {
- case RTNORM: // got it!
- break;
- case RTKWORD:
- if ((acedGetString(Adesk::kFalse,
- _T("Enter Valid Object Handle: "),
- handleStr) == RTNORM)
- && (acdbHandEnt(handleStr, en) == RTNORM))
- {
- break;
- }
- // Fall-through intentional
- //
- default:
- acutPrintf(_T("Nothing Selected, Return Code==%d\n"),ss);
- return NULL;
- }
- // Now, exchange the ads_name for the object Id...
- //
- Acad::ErrorStatus retStat;
- retStat = acdbGetObjectId(eId, en);
- if (retStat != Acad::eOk) {
- acutPrintf(_T("\nacdbGetObjectId failed"));
- acutPrintf(_T("\nen==(%lx,%lx), retStat==%d\n"),
- en[0], en[1], eId);
- return NULL;
- }
- AcDbObject* obj;
- if ((retStat = acdbOpenObject(obj, eId, openMode))
- != Acad::eOk)
- {
- acutPrintf(_T("acdbOpenEntity failed: ename:(%lx,%lx),")
- _T(" mode:%d retStat:%d"), en[0], en[1],
- openMode, retStat);
- return NULL;
- }
- return obj;
- }
- // Initialization function called from acrxEntryPoint during
- // kInitAppMsg case. This function is used to add commands
- // to the command stack.
- //
- void
- initApp()
- {
- acedRegCmds->addCommand(_T("ASDK_XDATA_DEMO"),
- _T("ASDK_PRINTX"), _T("PRINTX"), ACRX_CMD_MODAL,
- printXdata);
- acedRegCmds->addCommand(_T("ASDK_XDATA_DEMO"),
- _T("ASDK_ADDXDATA"), _T("ADDXDATA"), ACRX_CMD_MODAL,
- addXdata);
- }
- // Clean up function called from acrxEntryPoint during the
- // kUnloadAppMsg case. This function removes this app's
- // command set from the command stack.
- //
- void
- unloadApp()
- {
- acedRegCmds->removeGroup(_T("ASDK_XDATA_DEMO"));
- }
- // ARX entry point
- //
- AcRx::AppRetCode
- acrxEntryPoint(AcRx::AppMsgCode msg, void* appId)
- {
- switch (msg) {
- case AcRx::kInitAppMsg:
- acrxDynamicLinker->unlockApplication(appId);
- acrxDynamicLinker->registerAppMDIAware(appId);
- initApp();
- break;
- case AcRx::kUnloadAppMsg:
- unloadApp();
- }
- return AcRx::kRetOK;
- }
标签:acutPrintf,resval,pRb,restype,笔记,ObjectARX,xData,pTemp,xdata 来源: https://www.cnblogs.com/mjgw/p/12392782.html