| settexture |
(Image image [, Number tx, Number ty]) |
typedict.Graphics |
| |
Sets
foreground
to a value (either
image
or an
Array
that contains the three arguments), that arranges to use
image
as the texture for painting on
drawable.
The optional
tx
and
ty
arguments, which should be numbers in the default Yoix coordinate system,
translate the texture so the upper left corner of
image
maps to the point
(tx, ty)
in the window (or image) that contains
drawable.
Omitting
tx
and
ty
tells the interpreter to try to pick values that map the upper left corner of
image
to the upper left visible pixel in the window (or image) containing
drawable.
| |
| Example: |
The program,
import yoix.*.*;
Image img = {
String source = "http://www.yoix.org/imgs/ATTlogo.gif";
paint(rect) {
graphics {
setrgbcolor(1, 0, 0);
moveto(0, 0);
rlineto(200, 0);
moveto(0, 0);
rlineto(0, 200);
stroke();
}
}
};
JFrame f = {
Color background = Color.black;
Graphics graphics = {
double linewidth = 24;
double linecap = CAP_ROUND;
};
mousePressed(MouseEvent e) {
graphics { // "named block"
if (e.modifiers & BUTTON2_MASK)
erasedrawable();
moveto(e.coordinates.x, e.coordinates.y);
}
}
mouseDragged(MouseEvent e) {
double x = e.coordinates.x;
double y = e.coordinates.y;
graphics { // "named block"
settexture(img);
lineto(x, y);
stroke();
moveto(x, y);
}
}
};
f.visible = TRUE;
defines
MouseEvent
handlers in a frame that stroke thick lines that track the cursor and
are drawn using an image as the foreground.
See what happens when you add
tx
and
ty
arguments to the
settexture
call.
| | |
| Return: |
none
| | |
| See Also: |
grestore,
grestoreall,
gsave,
initclip,
initgraphics,
setcmykcolor,
setdash,
setfont,
setgradient,
setgray,
sethsbcolor,
setlinecap,
setlinejoin,
setlinewidth,
setmiterlimit,
setpath,
setrgbcolor
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Yoix is a registered trademark of AT&T Inc.
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