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// ---------------------------------------------------------------------------------
//
// Copyright (C) 2003-2013 Fons Adriaensen <fons@linuxaudio.org>
//
// This program 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 of the License, or
// (at your option) any later version.
//
// This program 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 program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// ---------------------------------------------------------------------------------
#include <string.h>
#include "clxclient.h"
X_draw::X_draw (Display *dpy, Drawable drw, GC gct, XftDraw *xft) :
_dpy (dpy), _drw (drw), _gct (gct),
_xft_draw (xft), _xft_color (0), _xft_font (0),
_xx (0), _yy (0)
{
if (_xft_draw && XftDrawDrawable (_xft_draw) != _drw) XftDrawChange (_xft_draw, _drw);
}
int X_draw::textwidth (const char *str)
{
int len;
XGlyphInfo G;
if (str && (len = strlen (str)))
{
if (_xft_font)
{
XftTextExtentsUtf8 (_dpy, _xft_font, (const FcChar8 *) str, len, &G);
return G.width;
}
else if (_x11_font) return XTextWidth (_x11_font, str, len);
}
return 0;
}
void X_draw::drawstring (const char *str, int xal)
{
int len, dx = 0;
XGlyphInfo G;
if (str && (len = strlen (str)))
{
if (_xft_font)
{
if (xal >= 0)
{
XftTextExtentsUtf8 (_dpy, _xft_font, (const FcChar8 *) str, len, &G);
dx = G.width;
if (xal == 0) dx /= 2;
}
XftDrawStringUtf8 (_xft_draw, _xft_color, _xft_font, _xx - dx, _yy, (const FcChar8 *) str, len);
}
else if (_x11_font)
{
if (xal >= 0)
{
dx = XTextWidth (_x11_font, str, len);
if (xal == 0) dx /= 2;
}
XDrawString (_dpy, _drw, _gct, _xx - dx, _yy, str, len);
}
}
}
void X_draw::drawpoints (int n, XPoint *P)
{
XDrawPoints (_dpy, _drw, _gct, P, n, CoordModeOrigin);
}
void X_draw::drawlines (int n, XPoint *P)
{
int k, m;
m = (XMaxRequestSize (_dpy) - 3) / 2;
while (n > 1)
{
if (n > m) k = m;
else k = n;
XDrawLines (_dpy, _drw, _gct, P, k, CoordModeOrigin);
P += k - 1;
n -= k - 1;
}
}
void X_draw::drawsegments (int n, XSegment *S)
{
XDrawSegments (_dpy, _drw, _gct, S, n);
}
void X_draw::setclip (int x0, int y0, int x1, int y1)
{
XRectangle R;
R.x = x0;
R.y = y0;
R.width = x1 - x0;
R.height = y1 - y0;
XSetClipRectangles (_dpy, _gct, 0, 0, &R, 1, Unsorted);
}
void X_draw::movepix (int dx, int dy, int xs, int ys)
{
XGCValues G;
G.graphics_exposures = True;
G.function = GXcopy;
XChangeGC (_dpy, _gct, GCGraphicsExposures | GCFunction, &G);
XCopyArea (_dpy, _drw, _drw, _gct, dx, dy, xs, ys, 0, 0);
G.graphics_exposures = False;
XChangeGC (_dpy, _gct, GCGraphicsExposures, &G);
}
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