draw_list->PushClipRect(ImVec4(canvas_pos.x,canvas_pos.y,canvas_pos.x+canvas_size.x,canvas_pos.y+canvas_size.y));// clip lines within the canvas (if we resize it, etc.)
draw_list->PushClipRect(ImVec4(canvas_pos.x,canvas_pos.y,canvas_pos.x+canvas_size.x,canvas_pos.y+canvas_size.y));// clip lines within the canvas (if we resize it, etc.)