source: trunk/src/user32/dcrgn.cpp@ 9554

Last change on this file since 9554 was 6902, checked in by sandervl, 24 years ago

added visible region callback function
File size: 9.5 KB
Line 
1/* $Id: dcrgn.cpp,v 1.7 2001-09-30 22:24:41 sandervl Exp $ */
2
3/*
4 * DC functions for USER32
5 *
6 * Project Odin Software License can be found in LICENSE.TXT
7 *
8 */
9
10/*****************************************************************************
11 * Includes *
12 *****************************************************************************/
13
14#include <odin.h>
15
16#define INCL_WIN
17#define INCL_GPI
18#define INCL_GREALL
19#define INCL_DEV
20#include <os2wrap.h>
21//#include <pmddi.h>
22#include <stdlib.h>
23
24#include <string.h>
25#include <win32type.h>
26#include <win32api.h>
27#include <winconst.h>
28#include <misc.h>
29#include <win32wbase.h>
30#include <math.h>
31#include <limits.h>
32#include "oslibwin.h"
33#include "oslibmsg.h"
34#include <dcdata.h>
35#include <objhandle.h>
36#include <wingdi32.h>
37
38#define INCLUDED_BY_DC
39#include "dc.h"
40
41#define DBG_LOCALLOG DBG_dcrgn
42#include "dbglocal.h"
43
44//******************************************************************************
45//******************************************************************************
46BOOL WIN32API GetUpdateRect(HWND hwnd, LPRECT pRect, BOOL erase)
47{
48 if (!hwnd)
49 {
50 dprintf(("GetUpdateRect %x %x %d -> invalid handle!!", hwnd, pRect, erase));
51 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
52 return FALSE;
53 }
54
55 RECTL rectl, rectlClient;
56 Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
57
58 if (!wnd)
59 {
60 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
61 dprintf(("GetUpdateRect %x %x %d -> invalid handle!!", hwnd, pRect, erase));
62 return FALSE;
63 }
64
65 dprintf(("GetUpdateRect %x %x %d", hwnd, pRect, erase));
66
67 BOOL updateRegionExists = WinQueryUpdateRect(wnd->getOS2WindowHandle(), pRect ? &rectl : NULL);
68 if (!pRect) {
69 dprintf(("GetUpdateRect returned %d", updateRegionExists));
70 RELEASE_WNDOBJ(wnd);
71 return (updateRegionExists);
72 }
73
74 if(updateRegionExists)
75 {
76 //CB: for PM empty rect is valid
77 if ((rectl.xLeft == rectl.xRight) || (rectl.yTop == rectl.yBottom)) {
78 if(pRect) {
79 pRect->left = pRect->top = pRect->right = pRect->bottom = 0;
80 }
81 RELEASE_WNDOBJ(wnd);
82 return FALSE;
83 }
84 mapOS2ToWin32Rect(wnd->getClientHeight(), (PRECTLOS2)&rectl, pRect);
85
86 if(wnd->isOwnDC() && GetMapMode(wnd->getOwnDC()) != MM_TEXT_W)
87 {
88 DPtoLP(wnd->getOwnDC(), (LPPOINT)pRect, 2);
89 }
90 if (erase)
91 sendEraseBkgnd (wnd);
92 }
93 else
94 {
95 if(pRect) {
96 pRect->left = pRect->top = pRect->right = pRect->bottom = 0;
97 }
98 }
99
100 dprintf(("GetUpdateRect returned (%d,%d)(%d,%d)", pRect->left, pRect->top, pRect->right, pRect->bottom));
101 RELEASE_WNDOBJ(wnd);
102 return updateRegionExists;
103}
104//******************************************************************************
105//TODO: Seems to return region in window coordinates instead of client coordinates
106//******************************************************************************
107int WIN32API GetUpdateRgn(HWND hwnd, HRGN hrgn, BOOL erase)
108{
109 LONG lComplexity;
110 Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
111
112 hrgn = ObjWinToOS2Region(hrgn);
113 if(!wnd || !hrgn)
114 {
115 dprintf(("WARNING: GetUpdateRgn %x %x %d; invalid handle", hwnd, hrgn, erase));
116 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
117 if(wnd) RELEASE_WNDOBJ(wnd);
118 return ERROR_W;
119 }
120 lComplexity = WinQueryUpdateRegion(wnd->getOS2WindowHandle(), hrgn);
121 if(lComplexity == RGN_ERROR) {
122 dprintf(("WARNING: GetUpdateRgn %x %x %d; RGN_ERROR", hwnd, hrgn, erase));
123 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
124 RELEASE_WNDOBJ(wnd);
125 return ERROR_W;
126 }
127
128 if(lComplexity != RGN_NULL)
129 {
130 if(!setWinDeviceRegionFromPMDeviceRegion(hrgn, hrgn, NULL, wnd->getOS2WindowHandle()))
131 {
132 dprintf(("WARNING: GetUpdateRgn %x %x %d; setWinDeviceRegionFromPMDeviceRegion failed!", hwnd, hrgn, erase));
133 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
134 RELEASE_WNDOBJ(wnd);
135 return ERROR_W;
136 }
137 if(erase) sendEraseBkgnd(wnd);
138 }
139 RELEASE_WNDOBJ(wnd);
140 return lComplexity;
141}
142//******************************************************************************
143//TODO: Check
144//******************************************************************************
145INT WIN32API ExcludeUpdateRgn(HDC hdc, HWND hwnd)
146{
147 Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
148 pDCData pHps = (pDCData)GpiQueryDCData((HPS)hdc);
149 LONG lComplexity;
150
151 if(!wnd || !pHps)
152 {
153 dprintf(("WARNING: ExcludeUpdateRgn %x %x; invalid handle", hdc, hwnd));
154 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
155 if(wnd) RELEASE_WNDOBJ(wnd);
156 return ERROR_W;
157 }
158 dprintf(("USER32: ExcludeUpdateRgn %x %x", hdc, hwnd));
159
160 lComplexity = WinExcludeUpdateRegion(pHps->hps, wnd->getOS2WindowHandle());
161 if(lComplexity == RGN_ERROR) {
162 SetLastError(ERROR_INVALID_HANDLE_W); //todo: correct error
163 }
164 else SetLastError(ERROR_SUCCESS_W);
165
166 RELEASE_WNDOBJ(wnd);
167 return lComplexity; // windows and PM values are identical
168}
169/*****************************************************************************
170 * Name : int WIN32API GetWindowRgn
171 * Purpose : The GetWindowRgn function obtains a copy of the window region of a window.
172 * Parameters: HWND hWnd handle to window whose window region is to be obtained
173 * HRGN hRgn handle to region that receives a copy of the window region
174 * Variables :
175 * Result : NULLREGION, SIMPLEREGION, COMPLEXREGION, ERROR
176 * Remark :
177 * Status : UNTESTED STUB
178 *
179 * Author : Patrick Haller [Thu, 1998/02/26 11:55]
180 *****************************************************************************/
181
182int WIN32API GetWindowRgn(HWND hwnd, HRGN hRgn)
183{
184 Win32BaseWindow *window;
185 HRGN hWindowRegion;
186
187 window = Win32BaseWindow::GetWindowFromHandle(hwnd);
188 if(!window) {
189 dprintf(("SetWindowContextHelpId, window %x not found", hwnd));
190 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
191 return 0;
192 }
193 dprintf(("USER32:GetWindowRgn (%x,%x)", hwnd, hRgn));
194 hWindowRegion = window->GetWindowRegion();
195 RELEASE_WNDOBJ(window);
196 return CombineRgn(hRgn, hWindowRegion, 0, RGN_COPY_W);
197}
198/*****************************************************************************
199 * Name : int WIN32API SetWindowRgn
200 * Purpose : The SetWindowRgn function sets the window region of a window. The
201 * window region determines the area within the window where the
202 * operating system permits drawing. The operating system does not
203 * display any portion of a window that lies outside of the window region
204 * When this function is called, the system sends the WM_WINDOWPOSCHANGING and
205 * WM_WINDOWPOSCHANGED messages to the window.
206 *
207 * Parameters: HWND hWnd handle to window whose window region is to be set
208 * HRGN hRgn handle to region
209 * BOOL bRedraw window redraw flag
210 * Variables :
211 * Result : If the function succeeds, the return value is non-zero.
212 * If the function fails, the return value is zero.
213 * Remark :
214 * Status : UNTESTED STUB
215 *
216 * Author : Patrick Haller [Thu, 1998/02/26 11:55]
217 *****************************************************************************/
218
219int WIN32API SetWindowRgn(HWND hwnd,
220 HRGN hRgn,
221 BOOL bRedraw)
222{
223 Win32BaseWindow *window;
224 HRGN hWindowRegion;
225
226 window = Win32BaseWindow::GetWindowFromHandle(hwnd);
227 if(!window) {
228 dprintf(("SetWindowContextHelpId, window %x not found", hwnd));
229 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
230 return 0;
231 }
232 dprintf(("USER32:SetWindowRgn (%x,%x,%d)", hwnd, hRgn, bRedraw));
233 if(window->GetWindowRegion()) {
234 DeleteObject(window->GetWindowRegion());
235 }
236 window->SetWindowRegion(hRgn);
237 if(bRedraw) {
238 RedrawWindow(hwnd, 0, 0, RDW_UPDATENOW_W);
239 }
240 RELEASE_WNDOBJ(window);
241//TODO:
242// When this function is called, the system sends the WM_WINDOWPOSCHANGING and
243// WM_WINDOWPOSCHANGED messages to the window.
244 return 1;
245}
246//******************************************************************************
247// WinSetVisibleRgnNotifyProc
248// To set a notification procedure for visible region changes of a specific window.
249// The procedure will be called when a WM_VRNENABLED message is posted
250// with ffVisRgnChanged set to TRUE
251//
252// Parameters:
253// HWND hwnd window handle
254// VISRGN_NOTIFY_PROC lpNotifyProc notification proc or NULL to clear proc
255// DWORD dwUserData value used as 3rd parameter during
256// visible region callback
257//
258// NOTE: Internal API
259//******************************************************************************
260BOOL WIN32API WinSetVisibleRgnNotifyProc(HWND hwnd, VISRGN_NOTIFY_PROC lpNotifyProc,
261 DWORD dwUserData)
262{
263 Win32BaseWindow *window;
264
265 window = Win32BaseWindow::GetWindowFromHandle(hwnd);
266 if(!window) {
267 dprintf(("WinSetVisibleRgnNotifyProc, window %x not found", hwnd));
268 return FALSE;
269 }
270 BOOL ret = window->setVisibleRgnNotifyProc(lpNotifyProc, dwUserData);
271 RELEASE_WNDOBJ(window);
272 return ret;
273}
274//******************************************************************************
275//******************************************************************************
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