dwrite: Stub for CreateMonitorRenderingParams().
[wine] / dlls / ole32 / ole32_main.c
1 /*
2  *  OLE32 Initialization
3  *
4  * Copyright 2000 Huw D M Davies for CodeWeavers
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19  */
20
21 #include "config.h"
22 #include "wine/port.h"
23
24 #include <stdarg.h>
25 #include <stdio.h>
26
27 #include "windef.h"
28 #include "winbase.h"
29 #include "wingdi.h"
30 #include "winuser.h"
31 #include "winnls.h"
32 #include "objbase.h"
33 #include "ole2.h"
34 #include "wine/debug.h"
35
36 WINE_DEFAULT_DEBUG_CHANNEL(ole);
37
38 #define HIMETRIC_INCHES 2540
39
40 /***********************************************************************
41  *              OleMetafilePictFromIconAndLabel (OLE32.@)
42  */
43 HGLOBAL WINAPI OleMetafilePictFromIconAndLabel(HICON hIcon, LPOLESTR lpszLabel,
44                                                LPOLESTR lpszSourceFile, UINT iIconIndex)
45 {
46         METAFILEPICT mfp;
47         HDC hdc;
48         HGLOBAL hmem = NULL;
49         LPVOID mfdata;
50         static const char szIconOnly[] = "IconOnly";
51         SIZE text_size = { 0, 0 };
52         INT width;
53         INT icon_width;
54         INT icon_height;
55         INT label_offset;
56         HDC hdcScreen;
57         LOGFONTW lf;
58         HFONT font;
59
60         TRACE("%p %p %s %d\n", hIcon, lpszLabel, debugstr_w(lpszSourceFile), iIconIndex);
61
62         if( !hIcon )
63                 return NULL;
64
65         if (!SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0))
66                 return NULL;
67
68         font = CreateFontIndirectW(&lf);
69         if (!font)
70                 return NULL;
71
72         hdc = CreateMetaFileW(NULL);
73         if( !hdc )
74         {
75                 DeleteObject(font);
76                 return NULL;
77         }
78
79         SelectObject(hdc, font);
80
81         ExtEscape(hdc, MFCOMMENT, sizeof(szIconOnly), szIconOnly, 0, NULL);
82
83         icon_width = GetSystemMetrics(SM_CXICON);
84         icon_height = GetSystemMetrics(SM_CYICON);
85         /* FIXME: should we give the label a bit of padding here? */
86         label_offset = icon_height;
87         if (lpszLabel)
88         {
89                 HFONT screen_old_font;
90                 /* metafile DCs don't support GetTextExtentPoint32, so size the font
91                  * using the desktop window DC */
92                 hdcScreen = GetDC(NULL);
93                 screen_old_font = SelectObject(hdcScreen, font);
94                 GetTextExtentPoint32W(hdcScreen, lpszLabel, lstrlenW(lpszLabel), &text_size);
95                 SelectObject(hdcScreen, screen_old_font);
96                 ReleaseDC(NULL, hdcScreen);
97
98                 width = 3 * icon_width;
99         }
100         else
101                 width = icon_width;
102
103         SetMapMode(hdc, MM_ANISOTROPIC);
104         SetWindowOrgEx(hdc, 0, 0, NULL);
105         SetWindowExtEx(hdc, width, label_offset + text_size.cy, NULL);
106
107         /* draw the icon centered */
108         DrawIcon(hdc, (width-icon_width) / 2, 0, hIcon);
109         if(lpszLabel)
110                 /* draw the label centered too, if provided */
111                 TextOutW(hdc, (width-text_size.cx) / 2, label_offset, lpszLabel, lstrlenW(lpszLabel));
112
113         if (lpszSourceFile)
114         {
115                 char szIconIndex[10];
116                 int path_length = WideCharToMultiByte(CP_ACP,0,lpszSourceFile,-1,NULL,0,NULL,NULL);
117                 if (path_length > 1)
118                 {
119                         char * szPath = CoTaskMemAlloc(path_length * sizeof(CHAR));
120                         if (szPath)
121                         {
122                                 WideCharToMultiByte(CP_ACP,0,lpszSourceFile,-1,szPath,path_length,NULL,NULL);
123                                 ExtEscape(hdc, MFCOMMENT, path_length, szPath, 0, NULL);
124                                 CoTaskMemFree(szPath);
125                         }
126                 }
127                 snprintf(szIconIndex, 10, "%u", iIconIndex);
128                 ExtEscape(hdc, MFCOMMENT, strlen(szIconIndex)+1, szIconIndex, 0, NULL);
129         }
130
131         mfp.mm = MM_ANISOTROPIC;
132         hdcScreen = GetDC(NULL);
133         mfp.xExt = MulDiv(width, HIMETRIC_INCHES, GetDeviceCaps(hdcScreen, LOGPIXELSX));
134         mfp.yExt = MulDiv(label_offset + text_size.cy, HIMETRIC_INCHES, GetDeviceCaps(hdcScreen, LOGPIXELSY));
135         ReleaseDC(NULL, hdcScreen);
136         mfp.hMF = CloseMetaFile(hdc);
137         DeleteObject(font);
138         if( !mfp.hMF )
139                 return NULL;
140
141         hmem = GlobalAlloc( GMEM_MOVEABLE, sizeof(mfp) );
142         if( !hmem )
143         {
144                 DeleteMetaFile(mfp.hMF);
145                 return NULL;
146         }
147
148         mfdata = GlobalLock( hmem );
149         if( !mfdata )
150         {
151                 GlobalFree( hmem );
152                 DeleteMetaFile(mfp.hMF);
153                 return NULL;
154         }
155
156         memcpy(mfdata,&mfp,sizeof(mfp));
157         GlobalUnlock( hmem );
158
159         TRACE("returning %p\n",hmem);
160
161         return hmem;
162 }