source: trunk/src/user32/dcrgn.cpp@ 5687

Last change on this file since 5687 was 5687, checked in by sandervl, 24 years ago

ScrollDC & ScrollWindow fixes
File size: 8.1 KB
Line 
1/* $Id: dcrgn.cpp,v 1.5 2001-05-11 13:31:54 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 return (updateRegionExists);
71 }
72
73 if(updateRegionExists)
74 {
75 //CB: for PM empty rect is valid
76 if ((rectl.xLeft == rectl.xRight) || (rectl.yTop == rectl.yBottom)) {
77 if(pRect) {
78 pRect->left = pRect->top = pRect->right = pRect->bottom = 0;
79 }
80 return FALSE;
81 }
82 mapOS2ToWin32Rect(wnd->getClientHeight(), (PRECTLOS2)&rectl, pRect);
83
84 if(wnd->isOwnDC() && GetMapMode(wnd->getOwnDC()) != MM_TEXT_W)
85 {
86 DPtoLP(wnd->getOwnDC(), (LPPOINT)pRect, 2);
87 }
88 if (erase)
89 sendEraseBkgnd (wnd);
90 }
91 else
92 {
93 if(pRect) {
94 pRect->left = pRect->top = pRect->right = pRect->bottom = 0;
95 }
96 }
97
98 dprintf(("GetUpdateRect returned (%d,%d)(%d,%d)", pRect->left, pRect->top, pRect->right, pRect->bottom));
99 return updateRegionExists;
100}
101//******************************************************************************
102//TODO: Seems to return region in window coordinates instead of client coordinates
103//******************************************************************************
104int WIN32API GetUpdateRgn(HWND hwnd, HRGN hrgn, BOOL erase)
105{
106 LONG lComplexity;
107 Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
108
109 hrgn = ObjWinToOS2Region(hrgn);
110 if(!wnd || !hrgn)
111 {
112 dprintf(("WARNING: GetUpdateRgn %x %x %d; invalid handle", hwnd, hrgn, erase));
113 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
114 return ERROR_W;
115 }
116 lComplexity = WinQueryUpdateRegion(wnd->getOS2WindowHandle(), hrgn);
117 if(lComplexity == RGN_ERROR) {
118 dprintf(("WARNING: GetUpdateRgn %x %x %d; RGN_ERROR", hwnd, hrgn, erase));
119 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
120 return ERROR_W;
121 }
122
123 if(lComplexity != RGN_NULL)
124 {
125 if(!setWinDeviceRegionFromPMDeviceRegion(hrgn, hrgn, NULL, wnd->getOS2WindowHandle()))
126 {
127 dprintf(("WARNING: GetUpdateRgn %x %x %d; setWinDeviceRegionFromPMDeviceRegion failed!", hwnd, hrgn, erase));
128 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
129 return ERROR_W;
130 }
131 if(erase) sendEraseBkgnd(wnd);
132 }
133 return lComplexity;
134}
135//******************************************************************************
136//TODO: Check
137//******************************************************************************
138INT WIN32API ExcludeUpdateRgn(HDC hdc, HWND hwnd)
139{
140 Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
141 pDCData pHps = (pDCData)GpiQueryDCData((HPS)hdc);
142 LONG lComplexity;
143
144 if(!wnd || !pHps)
145 {
146 dprintf(("WARNING: ExcludeUpdateRgn %x %x; invalid handle", hdc, hwnd));
147 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
148 return ERROR_W;
149 }
150 dprintf(("USER32: ExcludeUpdateRgn %x %x", hdc, hwnd));
151
152 lComplexity = WinExcludeUpdateRegion(pHps->hps, wnd->getOS2WindowHandle());
153 if(lComplexity == RGN_ERROR) {
154 SetLastError(ERROR_INVALID_HANDLE_W); //todo: correct error
155 }
156 else SetLastError(ERROR_SUCCESS_W);
157 return lComplexity; // windows and PM values are identical
158}
159/*****************************************************************************
160 * Name : int WIN32API GetWindowRgn
161 * Purpose : The GetWindowRgn function obtains a copy of the window region of a window.
162 * Parameters: HWND hWnd handle to window whose window region is to be obtained
163 * HRGN hRgn handle to region that receives a copy of the window region
164 * Variables :
165 * Result : NULLREGION, SIMPLEREGION, COMPLEXREGION, ERROR
166 * Remark :
167 * Status : UNTESTED STUB
168 *
169 * Author : Patrick Haller [Thu, 1998/02/26 11:55]
170 *****************************************************************************/
171
172int WIN32API GetWindowRgn(HWND hwnd, HRGN hRgn)
173{
174 Win32BaseWindow *window;
175 HRGN hWindowRegion;
176
177 window = Win32BaseWindow::GetWindowFromHandle(hwnd);
178 if(!window) {
179 dprintf(("SetWindowContextHelpId, window %x not found", hwnd));
180 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
181 return 0;
182 }
183 dprintf(("USER32:GetWindowRgn (%x,%x)", hwnd, hRgn));
184 hWindowRegion = window->GetWindowRegion();
185
186 return CombineRgn(hRgn, hWindowRegion, 0, RGN_COPY_W);
187}
188/*****************************************************************************
189 * Name : int WIN32API SetWindowRgn
190 * Purpose : The SetWindowRgn function sets the window region of a window. The
191 * window region determines the area within the window where the
192 * operating system permits drawing. The operating system does not
193 * display any portion of a window that lies outside of the window region
194 * When this function is called, the system sends the WM_WINDOWPOSCHANGING and
195 * WM_WINDOWPOSCHANGED messages to the window.
196 *
197 * Parameters: HWND hWnd handle to window whose window region is to be set
198 * HRGN hRgn handle to region
199 * BOOL bRedraw window redraw flag
200 * Variables :
201 * Result : If the function succeeds, the return value is non-zero.
202 * If the function fails, the return value is zero.
203 * Remark :
204 * Status : UNTESTED STUB
205 *
206 * Author : Patrick Haller [Thu, 1998/02/26 11:55]
207 *****************************************************************************/
208
209int WIN32API SetWindowRgn(HWND hwnd,
210 HRGN hRgn,
211 BOOL bRedraw)
212{
213 Win32BaseWindow *window;
214 HRGN hWindowRegion;
215
216 window = Win32BaseWindow::GetWindowFromHandle(hwnd);
217 if(!window) {
218 dprintf(("SetWindowContextHelpId, window %x not found", hwnd));
219 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
220 return 0;
221 }
222 dprintf(("USER32:SetWindowRgn (%x,%x,%d)", hwnd, hRgn, bRedraw));
223 if(window->GetWindowRegion()) {
224 DeleteObject(window->GetWindowRegion());
225 }
226 window->SetWindowRegion(hRgn);
227 if(bRedraw) {
228 RedrawWindow(hwnd, 0, 0, RDW_UPDATENOW_W);
229 }
230//TODO:
231// When this function is called, the system sends the WM_WINDOWPOSCHANGING and
232// WM_WINDOWPOSCHANGED messages to the window.
233 return 1;
234}
235//******************************************************************************
236//******************************************************************************
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