ReactOS  0.4.14-dev-323-g6fe6a88
context.c
Go to the documentation of this file.
1 /*
2  * RichEdit - Operation context functions
3  *
4  * Copyright 2004 by Krzysztof Foltman
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 "editor.h"
22 
24 {
25  c->hDC = hDC;
26  c->editor = editor;
27  c->pt.x = 0;
28  c->pt.y = 0;
29  c->rcView = editor->rcFormat;
30  if (hDC) {
31  c->dpi.cx = GetDeviceCaps(hDC, LOGPIXELSX);
32  c->dpi.cy = GetDeviceCaps(hDC, LOGPIXELSY);
33  } else {
34  c->dpi.cx = c->dpi.cy = 96;
35  }
36  if (editor->nAvailWidth)
37  c->nAvailWidth = ME_twips2pointsX(c, editor->nAvailWidth);
38  else
39  c->nAvailWidth = c->rcView.right - c->rcView.left;
40 }
41 
43 {
44  if (c->hDC) ITextHost_TxReleaseDC(c->editor->texthost, c->hDC);
45 }
#define ITextHost_TxReleaseDC(This, a)
Definition: editor.h:289
#define LOGPIXELSX
Definition: wingdi.h:717
static HDC
Definition: imagelist.c:92
void ME_InitContext(ME_Context *c, ME_TextEditor *editor, HDC hDC)
Definition: context.c:23
const GLubyte * c
Definition: glext.h:8905
void ME_DestroyContext(ME_Context *c)
Definition: context.c:42
int WINAPI GetDeviceCaps(_In_opt_ HDC, _In_ int)
static HDC hDC
Definition: 3dtext.c:33
#define LOGPIXELSY
Definition: wingdi.h:718
int ME_twips2pointsX(const ME_Context *c, int x) DECLSPEC_HIDDEN
Definition: paint.c:153