def draw(self, canvas: Canvas):
min_x = self.margin_left.pt
min_y = self.margin_top.pt
max_x = canvas.width - self.margin_right.pt
max_y = canvas.height - self.margin_bottom.pt
exterior_shape = Polygon([(0, 0), (canvas.width, 0),
(canvas.width, canvas.height),
(0, canvas.height), (0, 0)], [
list(
reversed([(min_x, min_y),
(max_x, min_y),
(max_x, max_y),
(min_x, max_y),
(min_x, min_y)]))
])
if self.stroke_width is not None:
interior_outline = Polygon([(min_x, min_y), (max_x, min_y),
(max_x, max_y), (min_x, max_y),
(min_x, min_y)])
canvas.context.set_line_width(self.stroke_width.pt)
canvas.context.set_source_rgba(*self.stroke_color)
CairoHelper.draw_polygon(canvas.context, interior_outline)
canvas.context.stroke()
canvas.context.set_source_rgba(*self.fill_color)
CairoHelper.draw_polygon(canvas.context, exterior_shape)
canvas.context.fill()
def draw_symbol(self, key, point: Point, canvas: Canvas):
canvas.context.set_source_rgba(point.x/100, point.y/100, 0, 1)
CairoHelper.draw_point(
canvas.context,
point,
Cu.from_pt(key).pt
)
def draw_polygon(self, canvas: Canvas, polygon: Polygon):
CairoHelper.draw_polygon(canvas.context, polygon)
if self._has_fill() and self._has_stroke():
canvas.context.set_source_rgba(*self.fill_color)
canvas.context.fill_preserve()
elif self._has_fill():
canvas.context.set_source_rgba(*self.fill_color)
canvas.context.fill()
if self._has_stroke():
canvas.context.set_line_width(self.stroke_width.pt)
canvas.context.set_source_rgba(*self.stroke_color)
canvas.context.stroke()
def draw(self, canvas: Canvas):
top_left = (0, 0)
top_right = (canvas.width, 0)
bottom_left = (0, canvas.height)
bottom_right = (canvas.width, canvas.height)
background_shape = Polygon(
[top_left, top_right, bottom_right, bottom_left, top_left])
canvas.context.set_source_rgba(*self.color)
CairoHelper.draw_polygon(canvas.context, background_shape)
canvas.context.fill()
def draw_rectangle(self, canvas: Canvas, offset: int, unit: str):
height = CanvasUnit.from_pt(10).pt
width = CanvasUnit.from_unit(1, unit).pt
offset_height = height * offset
top_left = (0, offset_height)
top_right = (width, offset_height)
bottom_left = (0, offset_height + height)
bottom_right = (width, offset_height + height)
shape = Polygon([
top_left,
top_right,
bottom_right,
bottom_left,
top_left
])
canvas.context.set_source_rgba(*self.color)
CairoHelper.draw_polygon(canvas.context, shape)
canvas.context.set_source_rgba(0.5, 0.5, 0.5, 1)
canvas.context.fill()
def draw_rectangle_top_left(canvas: Canvas, unit: str):
if unit in ['in', 'cm']:
# Setting to a smaller size to avoid disk space issues
midpoint = CanvasUnit.from_unit(2, unit).pt
else:
midpoint = CanvasUnit.from_unit(50, unit).pt
top_left = (0, 0)
top_right = (midpoint, 0)
bottom_left = (0, midpoint)
bottom_right = (midpoint, midpoint)
shape = Polygon(
[top_left, top_right, bottom_right, bottom_left, top_left])
canvas.context.set_source_rgb(0, 0, 0)
CairoHelper.draw_polygon(canvas.context, shape)
canvas.context.fill()
point_unit_shape = Polygon([(0, 0), (0, 1), (1, 1), (1, 0), (0, 0)])
canvas.context.set_source_rgb(1, 0, 0)
CairoHelper.draw_polygon(canvas.context, point_unit_shape)
canvas.context.fill()
def draw_line_string(canvas: Canvas, line_string: LineString):
CairoHelper.draw_line_string(canvas.context, line_string)
canvas.context.stroke()