static void DrawBox(Graphics.ISceneContext sc, Geom.Box2i box)
{
const int SHADOW = 4;
GL.glColor4f(0.5f, 0.5f, 0.5f, 0.5f);
GL.glBegin(GL.GL_QUADS);
foreach (var p in new Geom.Point2i[] {
// 右側の影
new Geom.Point2i(box.Upper.x, box.Lower.y + SHADOW),
new Geom.Point2i(box.Upper.x, box.Upper.y),
new Geom.Point2i(box.Upper.x + SHADOW, box.Upper.y),
new Geom.Point2i(box.Upper.x + SHADOW, box.Lower.y + SHADOW),
// 下側の影
new Geom.Point2i(box.Lower.x + SHADOW, box.Upper.y),
new Geom.Point2i(box.Lower.x + SHADOW, box.Upper.y + SHADOW),
new Geom.Point2i(box.Upper.x, box.Upper.y + SHADOW),
new Geom.Point2i(box.Upper.x, box.Upper.y),
// 右下の影
new Geom.Point2i(box.Upper.x, box.Upper.y),
new Geom.Point2i(box.Upper.x, box.Upper.y + SHADOW),
new Geom.Point2i(box.Upper.x + SHADOW, box.Upper.y + SHADOW),
new Geom.Point2i(box.Upper.x + SHADOW, box.Upper.y)
}.Select(pt => sc.Camera.ScreenToCamera(pt)))
{
GL.glVertex3dv(p);
}
GL.glEnd();
GL.glColor4f(1, 1, 1, 0.5f);
GL.glBegin(GL.GL_QUADS);
foreach (var p in new Geom.Point2i[] {
new Geom.Point2i(box.Lower.x, box.Lower.y),
new Geom.Point2i(box.Lower.x, box.Upper.y),
new Geom.Point2i(box.Upper.x, box.Upper.y),
new Geom.Point2i(box.Upper.x, box.Lower.y)
}.Select(pt => sc.Camera.ScreenToCamera(pt)))
{
GL.glVertex3dv(p);
}
GL.glEnd();
}
void FixPos()
{
const int MARGIN = 5;
Geom.Size2i size = _view.Camera.ScreenSize;
Geom.Box2i box = this.BoundingBox;
if (box.Lower.x < MARGIN)
{
_pos.x += MARGIN - box.Lower.x;
}
if (box.Lower.y < MARGIN)
{
_pos.y += MARGIN - box.Lower.y;
}
if (box.Upper.x + MARGIN > size.x)
{
_pos.x -= box.Upper.x + MARGIN - size.x;
}
if (box.Upper.y + MARGIN > size.y)
{
_pos.y -= box.Upper.y + MARGIN - size.y;
}
}
