void Widget::setTexCoordRegion(point_type x, point_type y, point_type w, point_type h) {
osg::Image* image = _image();
if(!image) return;
point_type tw = image->s();
point_type th = image->t();
TexCoordArray* texs = _texs();
// Set the LOWER_LEFT point.
XYCoord t(x / tw, y / tw);
(*texs)[LL] = t;
// Set the LOWER_RIGHT point.
t += XYCoord(w / tw, 0.0f);
(*texs)[LR] = t;
// Set the UPPER_RIGHT point.
t += XYCoord(0.0f, h / th);
(*texs)[UR] = t;
// Set the UPPER_LEFT point.
t += XYCoord(-(w / tw), 0.0f);
(*texs)[UL] = t;
}
XYCoord Window::localXY(double absx, double absy) const {
XYCoord xy = getAbsoluteOrigin();
double x = absx - xy.x();
double y = absy - xy.y();
return XYCoord(x + _visibleArea[0], y + _visibleArea[1]);
}
// Returns the WindowManager coordinates of the application window XY position.
XYCoord WindowManager::localXY(double x, double y) const {
return XYCoord((_width / _windowWidth) * x, (_height / _windowHeight) * y);
}
XYCoord Widget::localXY(double _x, double _y) const {
if(!_parent) return XYCoord(_x, _y);
return _parent->localXY(_x, _y) - getOrigin();
}
