reactos/dll/win32/riched20/context.c

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/*
* RichEdit - Operation context functions
*
* Copyright 2004 by Krzysztof Foltman
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "editor.h"
void ME_InitContext(ME_Context *c, ME_TextEditor *editor, HDC hDC)
{
c->hDC = hDC;
c->editor = editor;
c->pt.x = 0;
c->pt.y = 0;
c->rcView = editor->rcFormat;
c->current_style = NULL;
c->orig_font = NULL;
if (hDC) {
c->dpi.cx = GetDeviceCaps(hDC, LOGPIXELSX);
c->dpi.cy = GetDeviceCaps(hDC, LOGPIXELSY);
} else {
c->dpi.cx = c->dpi.cy = 96;
}
if (editor->nAvailWidth)
c->nAvailWidth = ME_twips2pointsX(c, editor->nAvailWidth);
else
c->nAvailWidth = c->rcView.right - c->rcView.left;
}
void ME_DestroyContext(ME_Context *c)
{
select_style( c, NULL );
if (c->hDC) ITextHost_TxReleaseDC( c->editor->texthost, c->hDC );
}