boolean GraphicMaster::grasp (const Event& e, Tool& tool) {
if (window_cursor == nil) {
window_cursor = e.window()->cursor();
}
boolean flag = false;
unsigned int tool_type = tool.tool();
switch (tool_type) {
case Tool::move:
case Tool::scale:
case Tool::rotate:
{
float tol = 2.0;
BoxObj box(
e.pointer_x()-tol, e.pointer_y()-tol,
e.pointer_x()+tol, e.pointer_y()+tol
);
Graphic* target = last_intersecting(box);
if (target != nil) {
Window* w = e.window();
Canvas* c = w->canvas();
w->cursor(grabber_cursor);
ToolState& ts = tool.toolstate();
total_gs(ts._gs);
_gr_list->append(target);
Coord l, b, r, t;
target->getbounds(l, b, r, t);
c->damage(l, b, r, t);
flag = target->grasp(e, tool);
if (flag) {
target->getbounds(l, b, r, t);
c->damage(l, b, r, t);
}
CanvasRep& rep = *c->rep();
CanvasDamage& cd = rep.damage_;
rep.start_repair();
drawclipped(c, cd.left, cd.bottom, cd.right, cd.top);
rep.finish_repair();
}
break;
}
}
return flag;
}
