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a09e091a JB |
1 | /* |
2 | *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved. | |
3 | * | |
4 | *Permission is hereby granted, free of charge, to any person obtaining | |
5 | * a copy of this software and associated documentation files (the | |
6 | *"Software"), to deal in the Software without restriction, including | |
7 | *without limitation the rights to use, copy, modify, merge, publish, | |
8 | *distribute, sublicense, and/or sell copies of the Software, and to | |
9 | *permit persons to whom the Software is furnished to do so, subject to | |
10 | *the following conditions: | |
11 | * | |
12 | *The above copyright notice and this permission notice shall be | |
13 | *included in all copies or substantial portions of the Software. | |
14 | * | |
15 | *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
16 | *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
17 | *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
18 | *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR | |
19 | *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF | |
20 | *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | |
21 | *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
22 | * | |
23 | *Except as contained in this notice, the name of the XFree86 Project | |
24 | *shall not be used in advertising or otherwise to promote the sale, use | |
25 | *or other dealings in this Software without prior written authorization | |
26 | *from the XFree86 Project. | |
27 | * | |
28 | * Authors: Kensuke Matsuzaki | |
29 | * Harold L Hunt II | |
30 | */ | |
31 | ||
32 | #ifdef HAVE_XWIN_CONFIG_H | |
33 | #include <xwin-config.h> | |
34 | #endif | |
35 | ||
36 | #include "win.h" | |
37 | ||
38 | /* | |
39 | * winSetShapeMultiWindow - See Porting Layer Definition - p. 42 | |
40 | */ | |
41 | ||
42 | void | |
43 | winSetShapeMultiWindow(WindowPtr pWin, int kind) | |
44 | { | |
45 | ScreenPtr pScreen = pWin->drawable.pScreen; | |
46 | ||
47 | winScreenPriv(pScreen); | |
48 | ||
49 | #if CYGMULTIWINDOW_DEBUG | |
50 | ErrorF("winSetShapeMultiWindow - pWin: %08x kind: %i\n", pWin, kind); | |
51 | #endif | |
52 | ||
53 | WIN_UNWRAP(SetShape); | |
54 | (*pScreen->SetShape) (pWin, kind); | |
55 | WIN_WRAP(SetShape, winSetShapeMultiWindow); | |
56 | ||
57 | /* Update the Windows window's shape */ | |
58 | winReshapeMultiWindow(pWin); | |
59 | winUpdateRgnMultiWindow(pWin); | |
60 | ||
61 | return; | |
62 | } | |
63 | ||
64 | /* | |
65 | * winUpdateRgnMultiWindow - Local function to update a Windows window region | |
66 | */ | |
67 | ||
68 | void | |
69 | winUpdateRgnMultiWindow(WindowPtr pWin) | |
70 | { | |
71 | SetWindowRgn(winGetWindowPriv(pWin)->hWnd, | |
72 | winGetWindowPriv(pWin)->hRgn, TRUE); | |
73 | ||
74 | /* The system now owns the region specified by the region handle and will delete it when it is no longer needed. */ | |
75 | winGetWindowPriv(pWin)->hRgn = NULL; | |
76 | } | |
77 | ||
78 | /* | |
79 | * winReshapeMultiWindow - Computes the composite clipping region for a window | |
80 | */ | |
81 | ||
82 | void | |
83 | winReshapeMultiWindow(WindowPtr pWin) | |
84 | { | |
85 | int nRects; | |
86 | RegionRec rrNewShape; | |
87 | BoxPtr pShape, pRects, pEnd; | |
88 | HRGN hRgn, hRgnRect; | |
89 | ||
90 | winWindowPriv(pWin); | |
91 | ||
92 | #if CYGDEBUG | |
93 | winDebug("winReshape ()\n"); | |
94 | #endif | |
95 | ||
96 | /* Bail if the window is the root window */ | |
97 | if (pWin->parent == NULL) | |
98 | return; | |
99 | ||
100 | /* Bail if the window is not top level */ | |
101 | if (pWin->parent->parent != NULL) | |
102 | return; | |
103 | ||
104 | /* Bail if Windows window handle is invalid */ | |
105 | if (pWinPriv->hWnd == NULL) | |
106 | return; | |
107 | ||
108 | /* Free any existing window region stored in the window privates */ | |
109 | if (pWinPriv->hRgn != NULL) { | |
110 | DeleteObject(pWinPriv->hRgn); | |
111 | pWinPriv->hRgn = NULL; | |
112 | } | |
113 | ||
114 | /* Bail if the window has no bounding region defined */ | |
115 | if (!wBoundingShape(pWin)) | |
116 | return; | |
117 | ||
118 | RegionNull(&rrNewShape); | |
119 | RegionCopy(&rrNewShape, wBoundingShape(pWin)); | |
120 | RegionTranslate(&rrNewShape, pWin->borderWidth, pWin->borderWidth); | |
121 | ||
122 | nRects = RegionNumRects(&rrNewShape); | |
123 | pShape = RegionRects(&rrNewShape); | |
124 | ||
125 | /* Don't do anything if there are no rectangles in the region */ | |
126 | if (nRects > 0) { | |
127 | RECT rcClient; | |
128 | RECT rcWindow; | |
129 | int iOffsetX, iOffsetY; | |
130 | ||
131 | /* Get client rectangle */ | |
132 | if (!GetClientRect(pWinPriv->hWnd, &rcClient)) { | |
133 | ErrorF("winReshape - GetClientRect failed, bailing: %d\n", | |
134 | (int) GetLastError()); | |
135 | return; | |
136 | } | |
137 | ||
138 | /* Translate client rectangle coords to screen coords */ | |
139 | /* NOTE: Only transforms top and left members */ | |
140 | ClientToScreen(pWinPriv->hWnd, (LPPOINT) &rcClient); | |
141 | ||
142 | /* Get window rectangle */ | |
143 | if (!GetWindowRect(pWinPriv->hWnd, &rcWindow)) { | |
144 | ErrorF("winReshape - GetWindowRect failed, bailing: %d\n", | |
145 | (int) GetLastError()); | |
146 | return; | |
147 | } | |
148 | ||
149 | /* Calculate offset from window upper-left to client upper-left */ | |
150 | iOffsetX = rcClient.left - rcWindow.left; | |
151 | iOffsetY = rcClient.top - rcWindow.top; | |
152 | ||
153 | /* Create initial Windows region for title bar */ | |
154 | /* FIXME: Mean, nasty, ugly hack!!! */ | |
155 | hRgn = CreateRectRgn(0, 0, rcWindow.right, iOffsetY); | |
156 | if (hRgn == NULL) { | |
157 | ErrorF("winReshape - Initial CreateRectRgn (%d, %d, %d, %d) " | |
158 | "failed: %d\n", | |
159 | 0, 0, (int) rcWindow.right, iOffsetY, (int) GetLastError()); | |
160 | } | |
161 | ||
162 | /* Loop through all rectangles in the X region */ | |
163 | for (pRects = pShape, pEnd = pShape + nRects; pRects < pEnd; pRects++) { | |
164 | /* Create a Windows region for the X rectangle */ | |
165 | hRgnRect = CreateRectRgn(pRects->x1 + iOffsetX, | |
166 | pRects->y1 + iOffsetY, | |
167 | pRects->x2 + iOffsetX, | |
168 | pRects->y2 + iOffsetY); | |
169 | if (hRgnRect == NULL) { | |
170 | ErrorF("winReshape - Loop CreateRectRgn (%d, %d, %d, %d) " | |
171 | "failed: %d\n" | |
172 | "\tx1: %d x2: %d xOff: %d y1: %d y2: %d yOff: %d\n", | |
173 | pRects->x1 + iOffsetX, | |
174 | pRects->y1 + iOffsetY, | |
175 | pRects->x2 + iOffsetX, | |
176 | pRects->y2 + iOffsetY, | |
177 | (int) GetLastError(), | |
178 | pRects->x1, pRects->x2, iOffsetX, | |
179 | pRects->y1, pRects->y2, iOffsetY); | |
180 | } | |
181 | ||
182 | /* Merge the Windows region with the accumulated region */ | |
183 | if (CombineRgn(hRgn, hRgn, hRgnRect, RGN_OR) == ERROR) { | |
184 | ErrorF("winReshape - CombineRgn () failed: %d\n", | |
185 | (int) GetLastError()); | |
186 | } | |
187 | ||
188 | /* Delete the temporary Windows region */ | |
189 | DeleteObject(hRgnRect); | |
190 | } | |
191 | ||
192 | /* Save a handle to the composite region in the window privates */ | |
193 | pWinPriv->hRgn = hRgn; | |
194 | } | |
195 | ||
196 | RegionUninit(&rrNewShape); | |
197 | ||
198 | return; | |
199 | } |