if love.mouse.isDown('1') and love.keyboard.isDown('h') then
          draw_help_with_mouse_pressed(line)
          return
        end

      if line.show_help then
        draw_help_without_mouse_pressed(line)
        return
      end

    end
  elseif chord == 'C-h' and not love.mouse.isDown('1') then
    local drawing = select_drawing_at_mouse()
    if drawing then
      drawing.show_help = true

  elseif chord == 'escape' and not love.mouse.isDown('1') then
    local drawing = select_drawing_at_mouse()
    if drawing then
      drawing.show_help = false
    end

end
function draw_help_without_mouse_pressed(drawing)
  love.graphics.setColor(0,0.5,0)
  love.graphics.rectangle('line', 16,drawing.y, drawingw,pixels(drawing.h))
  local y = drawing.y+10
  love.graphics.print("Things you can do:", 16+30,y)
  y = y+15
  love.graphics.print("* Press the mouse button to start drawing a "..current_shape_singular(), 16+30,y)
  y = y+15
  love.graphics.print("* Hover on a point and press 'ctrl+v' to start moving it,", 16+30,y)
  y = y+15
  love.graphics.print("then press the mouse button to finish", 16+30+bullet_indent(),y)
  y = y+15
  love.graphics.print("* Hover on a point or shape and press 'ctrl+d' to delete it", 16+30,y)
  y = y+15
  y = y+15
  if current_mode ~= 'freehand' then
    love.graphics.print("* Press 'ctrl+f' to switch to drawing freehand strokes", 16+30,y)
    y = y+15
  end
  if current_mode ~= 'line' then
    love.graphics.print("* Press 'ctrl+l' to switch to drawing lines", 16+30,y)
    y = y+15
  end
  if current_mode ~= 'manhattan' then
    love.graphics.print("* Press 'ctrl+m' to switch to drawing horizontal/vertical lines", 16+30,y)
    y = y+15
  end
  if current_mode ~= 'circle' then
    love.graphics.print("* Press 'ctrl+c' to switch to drawing circles/arcs", 16+30,y)
    y = y+15
  end
  if current_mode ~= 'polygon' then
    love.graphics.print("* Press 'ctrl+g' to switch to drawing polygons", 16+30,y)
    y = y+15
  end
end
function draw_help_with_mouse_pressed(drawing)
  love.graphics.setColor(0,0.5,0)
  love.graphics.rectangle('line', 16,drawing.y, drawingw,pixels(drawing.h))
  local y = drawing.y+10
  love.graphics.print("You're currently drawing "..current_shape_pluralized(), 16+30,y)
  y = y+15
  love.graphics.print('Things you can do now:', 16+30,y)
  y = y+15
  if current_mode == 'freehand' then
    love.graphics.print('* Release the mouse button to finish drawing a freehand stroke', 16+30,y)
    y = y+15
  elseif current_mode == 'line' or current_mode == 'manhattan' then
    love.graphics.print('* Release the mouse button to finish drawing a line', 16+30,y)
    y = y+15
  elseif current_mode == 'circle' then
    if drawing.pending.mode == 'circle' then
      love.graphics.print('* Release the mouse button to finish drawing a full circle', 16+30,y)
      y = y+15
      love.graphics.print("* Press 'a' to draw just an arc of a circle", 16+30,y)
    else
      love.graphics.print('* Release the mouse button to finish drawing an arc', 16+30,y)
    end
    y = y+15
  elseif current_mode == 'polygon' then
    love.graphics.print('* Release the mouse button to finish drawing a polygon', 16+30,y)
    y = y+15
    love.graphics.print("* Press 'p' to add a vertex to the polygon", 16+30,y)
    y = y+15
  end
  y = y+15
  if current_mode ~= 'line' then
    love.graphics.print("* Press 'l' to switch to drawing lines", 16+30,y)
    y = y+15
  end
  if current_mode ~= 'manhattan' then
    love.graphics.print("* Press 'm' to switch to drawing horizontal/vertical lines", 16+30,y)
    y = y+15
  end
  if current_mode ~= 'circle' then
    love.graphics.print("* Press 'c' to switch to drawing circles/arcs", 16+30,y)
    y = y+15
  end
  if current_mode ~= 'polygon' then
    love.graphics.print("* Press 'g' to switch to drawing polygons", 16+30,y)
    y = y+15
  end
end
function current_shape_singular()
  if current_mode == 'freehand' then
    return 'freehand stroke'
  elseif current_mode == 'line' then
    return 'straight line'
  elseif current_mode == 'manhattan' then
    return 'horizontal/vertical line'
  else
    return current_mode
  end
end
function current_shape_pluralized()
  return current_shape_singular()..'s'
end
_bullet_indent = nil
function bullet_indent()
  if _bullet_indent == nil then
    local text = love.graphics.newText(love.graphics.getFont(), '* ')
    _bullet_indent = text:getWidth()
  end
  return _bullet_indent