2 * Copyright 1998 Douglas Ridgway
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
26 BOOL FileIsPlaceable( LPCSTR szFileName );
27 HMETAFILE GetPlaceableMetaFile( HWND hwnd, LPCSTR szFileName );
30 int deltax = 0, deltay = 0;
31 int width = 0, height = 0;
34 static BOOL FileOpen(HWND hWnd, char *fn, int fnsz)
36 OPENFILENAME ofn = { sizeof(OPENFILENAME),
37 0, 0, NULL, NULL, 0, 0, NULL,
38 fnsz, NULL, 0, NULL, NULL,
39 OFN_SHOWHELP, 0, 0, NULL, 0, NULL };
40 ofn.lpstrFilter = "Metafiles\0*.wmf\0";
46 return GetOpenFileName(&ofn);
50 LRESULT CALLBACK WndProc(HWND hwnd,
60 BeginPaint(hwnd, &ps);
61 SetMapMode(ps.hdc, MM_ANISOTROPIC);
62 /* Set the window extent to a sane value in case the metafile doesn't */
63 SetWindowExtEx(ps.hdc, width, height, NULL);
64 SetViewportExtEx(ps.hdc, width, height, NULL);
65 SetViewportOrgEx(ps.hdc, deltax, deltay, NULL);
66 if(hmf) PlayMetaFile(ps.hdc, hmf);
71 case WM_COMMAND: /* message: command from application menu */
72 switch (GET_WM_COMMAND_ID(wparam,lparam))
76 char filename[MAX_PATH];
77 if (FileOpen(hwnd, filename, sizeof(filename))) {
78 isAldus = FileIsPlaceable(filename);
80 hmf = GetPlaceableMetaFile(hwnd, filename);
83 hmf = GetMetaFile(filename);
84 GetClientRect(hwnd, &r);
85 width = r.right - r.left;
86 height = r.bottom - r.top;
88 InvalidateRect( hwnd, NULL, TRUE );
93 case IDM_SET_EXT_TO_WIN:
96 GetClientRect(hwnd, &r);
97 width = r.right - r.left;
98 height = r.bottom - r.top;
100 InvalidateRect( hwnd, NULL, TRUE );
107 InvalidateRect( hwnd, NULL, TRUE );
111 InvalidateRect( hwnd, NULL, TRUE );
115 InvalidateRect( hwnd, NULL, TRUE );
119 InvalidateRect( hwnd, NULL, TRUE );
127 return DefWindowProc(hwnd, uMessage, wparam, lparam);
131 case WM_DESTROY: /* message: window being destroyed */
135 default: /* Passes it on if unprocessed */
136 return DefWindowProc(hwnd, uMessage, wparam, lparam);
141 BOOL FileIsPlaceable( LPCSTR szFileName )
146 if( (hInFile = _lopen( szFileName, OF_READ ) ) == HFILE_ERROR )
149 if( _lread( hInFile, &apmh, sizeof(APMFILEHEADER) )
150 != sizeof(APMFILEHEADER) )
157 /* Is it placeable? */
158 return (apmh.key == APMHEADER_KEY);
161 HMETAFILE GetPlaceableMetaFile( HWND hwnd, LPCSTR szFileName )
165 APMFILEHEADER APMHeader;
172 if( (fh = _lopen( szFileName, OF_READ ) ) == HFILE_ERROR ) return 0;
174 if (!_lread(fh, (LPSTR)&APMHeader, sizeof(APMFILEHEADER))) return 0;
175 _llseek(fh, sizeof(APMFILEHEADER), 0);
177 p = (WORD *) &APMHeader;
181 if (checksum != APMHeader.checksum) {
183 sprintf(msg, "Computed checksum %04x != stored checksum %04x\n",
184 checksum, APMHeader.checksum);
185 MessageBox(hwnd, msg, "Checksum failed", MB_OK);
189 if (!_lread(fh, (LPSTR)&mfHeader, sizeof(METAHEADER))) return 0;
191 if (!(lpData = GlobalAlloc(GPTR, (mfHeader.mtSize * 2L)))) return 0;
193 _llseek(fh, sizeof(APMFILEHEADER), 0);
194 if (!_lread(fh, lpData, (UINT)(mfHeader.mtSize * 2L)))
196 GlobalFree((HGLOBAL)lpData);
202 if (!(hmf = SetMetaFileBitsEx(mfHeader.mtSize*2, lpData)))
206 width = APMHeader.bbox.Right - APMHeader.bbox.Left;
207 height = APMHeader.bbox.Bottom - APMHeader.bbox.Top;
209 /* printf("Ok! width %d height %d inch %d\n", width, height, APMHeader.inch); */
211 width = width * GetDeviceCaps(hdc, LOGPIXELSX)/APMHeader.inch;
212 height = height * GetDeviceCaps(hdc,LOGPIXELSY)/APMHeader.inch;
213 ReleaseDC(hwnd, hdc);