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/*******************************************************************************
* Copyright (c) 2000, 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.internal.ole.win32;
import org.eclipse.swt.internal.win32.OS;
public class ITypeInfo extends IUnknown
{
public ITypeInfo(long /*int*/ address) {
super(address);
}
public int GetDocumentation(int index, String[] name, String[] docString, int[] pdwHelpContext, String[] helpFile ) {
long /*int*/[] pBstrName = null;
if (name != null) pBstrName = new long /*int*/[1];
long /*int*/[] pBstrDocString = null;
if (docString != null) pBstrDocString = new long /*int*/[1];
long /*int*/[] pBstrHelpFile = null;
if (helpFile != null) pBstrHelpFile = new long /*int*/[1];
int rc = COM.VtblCall(12, address, index, pBstrName, pBstrDocString, pdwHelpContext, pBstrHelpFile);
if (name != null && pBstrName[0] != 0) {
int size = COM.SysStringByteLen(pBstrName[0]);
if (size > 0){
// get the unicode character array from the global memory and create a String
char[] buffer = new char[(size + 1) /2]; // add one to avoid rounding errors
COM.MoveMemory(buffer, pBstrName[0], size);
name[0] = new String(buffer);
int subindex = name[0].indexOf("\0");
if (subindex > 0)
name[0] = name[0].substring(0, subindex);
}
COM.SysFreeString(pBstrName[0]);
}
if (docString != null && pBstrDocString[0] != 0) {
int size = COM.SysStringByteLen(pBstrDocString[0]);
if (size > 0){
// get the unicode character array from the global memory and create a String
char[] buffer = new char[(size + 1) /2]; // add one to avoid rounding errors
COM.MoveMemory(buffer, pBstrDocString[0], size);
docString[0] = new String(buffer);
int subindex = docString[0].indexOf("\0");
if (subindex > 0)
docString[0] = docString[0].substring(0, subindex);
}
COM.SysFreeString(pBstrDocString[0]);
}
if (helpFile != null && pBstrHelpFile[0] != 0) {
int size = COM.SysStringByteLen(pBstrHelpFile[0]);
if (size > 0){
// get the unicode character array from the global memory and create a String
char[] buffer = new char[(size + 1) /2]; // add one to avoid rounding errors
COM.MoveMemory(buffer, pBstrHelpFile[0], size);
helpFile[0] = new String(buffer);
int subindex = helpFile[0].indexOf("\0");
if (subindex > 0)
helpFile[0] = helpFile[0].substring(0, subindex);
}
COM.SysFreeString(pBstrHelpFile[0]);
}
return rc;
}
public int GetFuncDesc(int index, long /*int*/[] ppFuncDesc) {
return COM.VtblCall(5, address, index, ppFuncDesc);
}
public int GetIDsOfNames(String[] rgszNames, int cNames, int[] pMemId) {
char[] buffer;
int size = rgszNames.length;
// create an array to hold the addresses
long /*int*/ hHeap = OS.GetProcessHeap();
long /*int*/ ppNames = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, size * OS.PTR_SIZEOF);
long /*int*/[] memTracker = new long /*int*/[size];
try {
// add the address of each string to the array
for (int i=0; i<size; i++){
// create a null terminated array of char for each String
int nameSize = rgszNames[i].length();
buffer = new char[nameSize +1];
rgszNames[i].getChars(0, nameSize, buffer, 0);
// get the address of the start of the array of char
long /*int*/ pName = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, buffer.length * 2);
OS.MoveMemory(pName, buffer, buffer.length * 2);
// copy the address to the array of addresses
COM.MoveMemory(ppNames + OS.PTR_SIZEOF * i, new long /*int*/[]{pName}, OS.PTR_SIZEOF);
// keep track of the Global Memory so we can free it
memTracker[i] = pName;
}
return COM.VtblCall(10, address, ppNames, cNames, pMemId);
} finally {
// free the memory
for (int i=0; i<memTracker.length; i++){
OS.HeapFree(hHeap, 0, memTracker[i]);
}
OS.HeapFree(hHeap, 0, ppNames);
}
}
public int GetImplTypeFlags(int index, int[] pImplTypeFlags) {
return COM.VtblCall(9, address, index, pImplTypeFlags);
}
public int GetNames(int memid, String[] names, int cMaxNames, int[] pcNames){
int nameSize = names.length;
long /*int*/[] rgBstrNames = new long /*int*/[nameSize];
int rc = COM.VtblCall(7, address, memid, rgBstrNames, nameSize, pcNames);
if (rc == COM.S_OK) {
for (int i = 0; i < pcNames[0]; i++) {
int size = COM.SysStringByteLen(rgBstrNames[i]);
if (size > 0){
// get the unicode character array from the global memory and create a String
char[] buffer = new char[(size + 1) /2]; // add one to avoid rounding errors
COM.MoveMemory(buffer, rgBstrNames[i], size);
names[i] = new String(buffer);
int subindex = names[i].indexOf("\0");
if (subindex > 0)
names[i] = names[i].substring(0, subindex);
}
COM.SysFreeString(rgBstrNames[i]);
}
}
return rc;
}
public int GetRefTypeInfo(int hRefType, long /*int*/[] ppTInfo) {
return COM.VtblCall(14, address, hRefType, ppTInfo);
}
public int GetRefTypeOfImplType(int index, int[] pRefType) {
return COM.VtblCall(8, address, index, pRefType);
}
public int GetTypeAttr(long /*int*/[] ppTypeAttr) {
return COM.VtblCall(3, address, ppTypeAttr);
}
public int GetVarDesc(int index, long /*int*/[] ppVarDesc ) {
return COM.VtblCall(6, address, index, ppVarDesc);
}
public int ReleaseFuncDesc(long /*int*/ pFuncDesc ) {
return COM.VtblCall(20, address, pFuncDesc);
}
public int ReleaseTypeAttr(long /*int*/ pTypeAttr) {
return COM.VtblCall(19, address, pTypeAttr);
}
public int ReleaseVarDesc(long /*int*/ pVarDesc ) {
return COM.VtblCall(21, address, pVarDesc);
}
}
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