source: trunk/src/gdi32/objhandle.cpp@ 4767

Last change on this file since 4767 was 4767, checked in by sandervl, 25 years ago

temporary fix for bugs introduced by recent object handle changes
File size: 9.4 KB
Line 
1/* $Id: objhandle.cpp,v 1.8 2000-12-09 14:44:35 sandervl Exp $ */
2/*
3 * Win32 Handle Management Code for OS/2
4 *
5 *
6 * Copyright 2000 Sander van Leeuwen (sandervl@xs4all.nl)
7 *
8 *
9 * TODO: The table should be dynamically increased when necessary
10 * This is just a quick and dirty implementation
11 *
12 * Project Odin Software License can be found in LICENSE.TXT
13 *
14 */
15
16#include <os2win.h>
17#include <stdlib.h>
18#include <string.h>
19#include <vmutex.h>
20#include <objhandle.h>
21#include <dcdata.h>
22#include <winuser32.h>
23#include "oslibgpi.h"
24#include "dibsect.h"
25#include "region.h"
26
27#define DBG_LOCALLOG DBG_objhandle
28#include "dbglocal.h"
29
30//******************************************************************************
31
32typedef struct {
33 ULONG dwUserData;
34 ObjectType type;
35} GdiObject;
36
37static GdiObject objHandleTable[MAX_OBJECT_HANDLES] = {0};
38static ULONG lowestFreeIndex = 0;
39static VMutex objTableMutex;
40
41//******************************************************************************
42//******************************************************************************
43BOOL ObjAllocateHandle(HANDLE *hObject, DWORD dwUserData, ObjectType type)
44{
45 objTableMutex.enter(VMUTEX_WAIT_FOREVER);
46 if(lowestFreeIndex == -1) {
47 //oops, out of handles
48 objTableMutex.leave();
49 dprintf(("ERROR: GDI: HwAllocateWindowHandle OUT OF GDI OBJECT HANDLES!!"));
50 DebugInt3();
51 return FALSE;
52 }
53 *hObject = lowestFreeIndex;
54 *hObject |= MAKE_HANDLE(type);
55 objHandleTable[lowestFreeIndex].dwUserData = dwUserData;
56 objHandleTable[lowestFreeIndex].type = type;
57
58 lowestFreeIndex = -1;
59
60 //find next free handle
61 for(int i=0;i<MAX_OBJECT_HANDLES;i++) {
62 if(objHandleTable[i].dwUserData == 0) {
63 lowestFreeIndex = i;
64 break;
65 }
66 }
67 objTableMutex.leave();
68 return TRUE;
69}
70//******************************************************************************
71//******************************************************************************
72void ObjFreeHandle(HANDLE hObject)
73{
74 hObject &= OBJHANDLE_MAGIC_MASK;
75 if(hObject < MAX_OBJECT_HANDLES) {
76 objTableMutex.enter(VMUTEX_WAIT_FOREVER);
77 objHandleTable[hObject].dwUserData = 0;
78 objHandleTable[hObject].type = GDIOBJ_NONE;
79 if(lowestFreeIndex == -1 || hObject < lowestFreeIndex)
80 lowestFreeIndex = hObject;
81
82 objTableMutex.leave();
83 }
84}
85//******************************************************************************
86//******************************************************************************
87DWORD ObjGetHandleData(HANDLE hObject, ObjectType type)
88{
89 hObject &= OBJHANDLE_MAGIC_MASK;
90 if(hObject < MAX_OBJECT_HANDLES && type == objHandleTable[hObject].type) {
91 return objHandleTable[hObject].dwUserData;
92 }
93 return HANDLE_OBJ_ERROR;
94}
95//******************************************************************************
96//******************************************************************************
97ObjectType ObjGetHandleType(HANDLE hObject)
98{
99 DWORD objtype;
100
101 switch(OBJHANDLE_MAGIC(hObject))
102 {
103 case GDIOBJ_REGION:
104 hObject &= OBJHANDLE_MAGIC_MASK;
105 if(hObject < MAX_OBJECT_HANDLES && objHandleTable[hObject].dwUserData != 0) {
106 return objHandleTable[hObject].type;
107 }
108 break;
109
110 case USEROBJ_MENU:
111 hObject &= OBJHANDLE_MAGIC_MASK;
112 if(hObject < MAX_OBJECT_HANDLES && objHandleTable[hObject].dwUserData != 0) {
113 return objHandleTable[hObject].type;
114 }
115 break;
116
117 case GDIOBJ_BITMAP:
118 case GDIOBJ_BRUSH:
119 case GDIOBJ_PALETTE:
120 case GDIOBJ_FONT:
121 case USEROBJ_ACCEL:
122 default:
123 break;
124 }
125 return GDIOBJ_NONE;
126}
127//******************************************************************************
128//******************************************************************************
129int WIN32API GetObjectA( HGDIOBJ hObject, int size, void *lpBuffer)
130{
131 int rc;
132
133 dprintf(("GDI32: GetObject %X %X %X\n", hObject, size, lpBuffer));
134 if(lpBuffer == NULL)
135 { //return required size if buffer pointer == NULL
136 int objtype = GetObjectType(hObject);
137 switch(objtype)
138 {
139 case OBJ_PEN:
140 return sizeof(LOGPEN);
141
142 case OBJ_EXTPEN:
143 return sizeof(EXTLOGPEN);
144
145 case OBJ_BRUSH:
146 return sizeof(LOGBRUSH);
147
148 case OBJ_PAL:
149 return sizeof(USHORT);
150
151 case OBJ_FONT:
152 return sizeof(LOGFONTA);
153
154 case OBJ_BITMAP:
155 return sizeof(BITMAP); //also default for dib sections??? (TODO: NEED TO CHECK THIS)
156
157 case OBJ_DC:
158 case OBJ_METADC:
159 case OBJ_REGION:
160 case OBJ_METAFILE:
161 case OBJ_MEMDC:
162 case OBJ_ENHMETADC:
163 case OBJ_ENHMETAFILE:
164 dprintf(("warning: GetObjectA not defined for object type %d", objtype));
165 return 0;
166 }
167 }
168 if(DIBSection::getSection() != NULL)
169 {
170 DIBSection *dsect = DIBSection::find(hObject);
171 if(dsect)
172 {
173 rc = dsect->GetDIBSection(size, lpBuffer);
174 if(rc == 0) {
175 SetLastError(ERROR_INVALID_PARAMETER);
176 return 0;
177 }
178 SetLastError(ERROR_SUCCESS);
179 return rc;
180 }
181 }
182
183 return O32_GetObject(hObject, size, lpBuffer);
184}
185//******************************************************************************
186//******************************************************************************
187int WIN32API GetObjectW( HGDIOBJ hObject, int size, void *lpBuffer)
188{
189 int ret, objtype;
190
191 dprintf(("GDI32: GetObjectW %X, %d %X", hObject, size, lpBuffer));
192 objtype = GetObjectType(hObject);
193
194 switch(objtype)
195 {
196 case OBJ_FONT:
197 {
198 LOGFONTA logfonta;
199
200 if(lpBuffer == NULL) {
201 return sizeof(LOGFONTW); //return required size if buffer pointer == NULL
202 }
203 ret = GetObjectA(hObject, sizeof(logfonta), (void *)&logfonta);
204 if(ret == sizeof(logfonta))
205 {
206 LOGFONTW *logfontw = (LOGFONTW *)lpBuffer;
207
208 if(size < sizeof(LOGFONTW)) {
209 dprintf(("GDI32: GetObjectW : buffer not big enough for LOGFONTW struct!!")); //is the correct? or copy only part?
210 return 0;
211 }
212 memcpy(logfontw, &logfonta, sizeof(LOGFONTA));
213 memset(logfontw->lfFaceName, 0, LF_FACESIZE);
214 AsciiToUnicodeN(logfonta.lfFaceName, logfontw->lfFaceName, LF_FACESIZE-1);
215
216 return sizeof(LOGFONTW);
217 }
218 return 0;
219 }
220 default:
221 return GetObjectA(hObject, size, lpBuffer);
222 }
223}
224//******************************************************************************
225//******************************************************************************
226HGDIOBJ WIN32API SelectObject(HDC hdc, HGDIOBJ hObj)
227{
228 HGDIOBJ rc;
229
230 dprintf2(("GDI32: SelectObject %x %x", hdc, hObj));
231
232 if(ObjGetHandleType(hObj) == GDIOBJ_REGION) {
233 //Return complexity here; not previously selected clip region
234 return (HGDIOBJ)SelectClipRgn(hdc, hObj);
235 }
236
237 if(DIBSection::getSection() != NULL)
238 {
239 DIBSection *dsect;
240
241 dsect = DIBSection::find(hdc);
242 if(dsect)
243 {
244 //remove previously selected dibsection
245 dsect->UnSelectDIBObject();
246 }
247 dsect = DIBSection::find((DWORD)hObj);
248 if(dsect)
249 {
250 dsect->SelectDIBObject(hdc);
251 }
252 }
253 rc = O32_SelectObject(hdc, hObj);
254 if(rc != 0 && DIBSection::getSection != NULL)
255 {
256 DIBSection *dsect = DIBSection::find((DWORD)rc);
257 if(dsect)
258 {
259 dsect->UnSelectDIBObject();
260 }
261 }
262#ifdef USING_OPEN32
263 if(O32_GetObjectType(hObj) == OBJ_BITMAP)
264 {
265 //SvL: Open32 messes up the height of the hdc (for windows)
266 pDCData pHps = (pDCData)OSLibGpiQueryDCData((HPS)hdc);
267 if(pHps && pHps->hwnd) {
268 dprintf2(("change back origin"));
269 selectClientArea(pHps);
270 setPageXForm(pHps);
271 }
272 }
273#endif
274 dprintf2(("GDI32: SelectObject %x %x returned %x", hdc, hObj, rc));
275
276 return(rc);
277}
278//******************************************************************************
279//******************************************************************************
280DWORD WIN32API GetObjectType( HGDIOBJ hObj)
281{
282 dprintf2(("GDI32: GetObjectType\n"));
283 if(ObjGetHandleType(hObj) == GDIOBJ_REGION) {
284 SetLastError(ERROR_SUCCESS);
285 return OBJ_REGION;
286 }
287 return O32_GetObjectType(hObj);
288}
289//******************************************************************************
290//******************************************************************************
291BOOL WIN32API DeleteObject(HANDLE hObj)
292{
293 dprintf(("GDI32: DeleteObject %x", hObj));
294 if(ObjGetHandleType(hObj) == GDIOBJ_REGION) {
295 OSLibDeleteRegion(ObjGetHandleData(hObj, GDIOBJ_REGION));
296 ObjFreeHandle(hObj);
297 SetLastError(ERROR_SUCCESS);
298 return OBJ_REGION;
299 }
300 DIBSection::deleteSection((DWORD)hObj);
301 return O32_DeleteObject(hObj);
302}
303//******************************************************************************
304//******************************************************************************
305BOOL WIN32API SetObjectOwner( HGDIOBJ arg1, int arg2 )
306{
307 // Here is a guess for a undocumented entry
308 dprintf(("WARNING: GDI32: SetObjectOwner - stub (TRUE)\n"));
309 return TRUE;
310}
311//******************************************************************************
312//******************************************************************************
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