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
23 void ME_InitContext(ME_Context *c, ME_TextEditor *editor, HDC hDC)
24 {
25 c->nSequence = editor->nSequence++;
26 c->hDC = hDC;
27 c->editor = editor;
28 c->pt.x = 0;
29 c->pt.y = 0;
30 c->hbrMargin = CreateSolidBrush(RGB(224,224,224));
31 c->rcView = editor->rcFormat;
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
44 void ME_DestroyContext(ME_Context *c)
45 {
46 if (c->hDC) ITextHost_TxReleaseDC(c->editor->texthost, c->hDC);
47 DeleteObject(c->hbrMargin);
48 }
49
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