ReactOS  0.4.15-dev-1207-g698a8e6
context.c
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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  c->current_style = NULL;
31  c->orig_font = NULL;
32  if (hDC) {
33  c->dpi.cx = GetDeviceCaps(hDC, LOGPIXELSX);
34  c->dpi.cy = GetDeviceCaps(hDC, LOGPIXELSY);
35  } else {
36  c->dpi.cx = c->dpi.cy = 96;
37  }
38  if (editor->nAvailWidth)
39  c->nAvailWidth = ME_twips2pointsX(c, editor->nAvailWidth);
40  else
41  c->nAvailWidth = c->rcView.right - c->rcView.left;
42 }
43 
45 {
46  select_style( c, NULL );
47  if (c->hDC) ITextHost_TxReleaseDC( c->editor->texthost, c->hDC );
48 }
#define ITextHost_TxReleaseDC(This, a)
Definition: editor.h:288
#define LOGPIXELSX
Definition: wingdi.h:717
static HDC
Definition: imagelist.c:92
void select_style(ME_Context *c, ME_Style *s) DECLSPEC_HIDDEN
Definition: style.c:369
smooth NULL
Definition: ftsmooth.c:416
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:44
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