diff options
Diffstat (limited to 'gerber/render/cairo_backend.py')
| -rw-r--r-- | gerber/render/cairo_backend.py | 395 |
1 files changed, 207 insertions, 188 deletions
diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 78ccf34..349640a 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -12,7 +12,7 @@ # Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
+# See the License for the specific language governing permissions and # limitations under the License. try:
@@ -21,7 +21,8 @@ except ImportError: import cairocffi as cairo
import math
-from operator import mul, div
+from operator import mul, di
+ import tempfile
from ..primitives import *
@@ -36,11 +37,14 @@ except(ImportError): class GerberCairoContext(GerberContext):
+
def __init__(self, scale=300):
- GerberContext.__init__(self)
+ super(GerberCairoContext, self).__init__()
self.scale = (scale, scale)
self.surface = None
self.ctx = None
+ self.active_layer = None
+ self.output_ctx = None
self.bg = False
self.mask = None
self.mask_ctx = None
@@ -50,37 +54,40 @@ class GerberCairoContext(GerberContext): @property
def origin_in_pixels(self):
- return tuple(map(mul, self.origin_in_inch, self.scale)) if self.origin_in_inch is not None else (0.0, 0.0)
+ return (self.scale_point(self.origin_in_inch)
+ if self.origin_in_inch is not None else (0.0, 0.0))
@property
def size_in_pixels(self):
- return tuple(map(mul, self.size_in_inch, self.scale)) if self.size_in_inch is not None else (0.0, 0.0)
+ return (self.scale_point(self.size_in_inch)
+ if self.size_in_inch is not None else (0.0, 0.0))
def set_bounds(self, bounds, new_surface=False):
origin_in_inch = (bounds[0][0], bounds[1][0])
- size_in_inch = (abs(bounds[0][1] - bounds[0][0]), abs(bounds[1][1] - bounds[1][0]))
- size_in_pixels = tuple(map(mul, size_in_inch, self.scale))
+ size_in_inch = (abs(bounds[0][1] - bounds[0][0]),
+ abs(bounds[1][1] - bounds[1][0]))
+ size_in_pixels = self.scale_point(size_in_inch)
self.origin_in_inch = origin_in_inch if self.origin_in_inch is None else self.origin_in_inch
self.size_in_inch = size_in_inch if self.size_in_inch is None else self.size_in_inch
if (self.surface is None) or new_surface:
self.surface_buffer = tempfile.NamedTemporaryFile()
- self.surface = cairo.SVGSurface(self.surface_buffer, size_in_pixels[0], size_in_pixels[1])
- self.ctx = cairo.Context(self.surface)
- self.ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD)
- self.ctx.scale(1, -1)
- self.ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1])
- self.mask = cairo.SVGSurface(None, size_in_pixels[0], size_in_pixels[1])
- self.mask_ctx = cairo.Context(self.mask)
- self.mask_ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD)
- self.mask_ctx.scale(1, -1)
- self.mask_ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1])
- self._xform_matrix = cairo.Matrix(xx=1.0, yy=-1.0, x0=-self.origin_in_pixels[0], y0=self.size_in_pixels[1] + self.origin_in_pixels[1])
+ self.surface = cairo.SVGSurface(
+ self.surface_buffer, size_in_pixels[0], size_in_pixels[1])
+ self.output_ctx = cairo.Context(self.surface)
+ self.output_ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD)
+ self.output_ctx.scale(1, -1)
+ self.output_ctx.translate(-(origin_in_inch[0] * self.scale[0]),
+ (-origin_in_inch[1] * self.scale[0]) - size_in_pixels[1])
+ self._xform_matrix = cairo.Matrix(xx=1.0, yy=-1.0,
+ x0=-self.origin_in_pixels[0],
+ y0=self.size_in_pixels[1] + self.origin_in_pixels[1])
def render_layers(self, layers, filename, theme=THEMES['default']):
""" Render a set of layers
"""
self.set_bounds(layers[0].bounds, True)
self._paint_background(True)
+
for layer in layers:
self._render_layer(layer, theme)
self.dump(filename)
@@ -117,46 +124,46 @@ class GerberCairoContext(GerberContext): self.color = settings.color
self.alpha = settings.alpha
self.invert = settings.invert
+
+ # Get a new clean layer to render on
+ self._new_render_layer()
if settings.mirror:
raise Warning('mirrored layers aren\'t supported yet...')
- if self.invert:
- self._clear_mask()
for prim in layer.primitives:
self.render(prim)
- if self.invert:
- self._render_mask()
+ # Add layer to image
+ self._flatten()
def _render_line(self, line, color):
- start = map(mul, line.start, self.scale)
- end = map(mul, line.end, self.scale)
+ start = [pos * scale for pos, scale in zip(line.start, self.scale)]
+ end = [pos * scale for pos, scale in zip(line.end, self.scale)]
if not self.invert:
- ctx = self.ctx
- ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
- ctx.set_operator(cairo.OPERATOR_OVER if line.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if line.level_polarity == "dark"
+ else cairo.OPERATOR_CLEAR) else:
- ctx = self.mask_ctx
- ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
- ctx.set_operator(cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ self.ctx.set_operator(cairo.OPERATOR_CLEAR)
if isinstance(line.aperture, Circle):
- width = line.aperture.diameter
- ctx.set_line_width(width * self.scale[0])
- ctx.set_line_cap(cairo.LINE_CAP_ROUND)
-
- ctx.move_to(*start)
- ctx.line_to(*end)
- ctx.stroke()
+ width = line.aperture.diameter + self.ctx.set_line_width(width * self.scale[0])
+ self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ self.ctx.move_to(*start)
+ self.ctx.line_to(*end)
+ self.ctx.stroke() elif isinstance(line.aperture, Rectangle):
- points = [tuple(map(mul, x, self.scale)) for x in line.vertices]
- ctx.set_line_width(0)
- ctx.move_to(*points[0])
+ points = [self.scale_point(x) for x in line.vertices]
+ self.ctx.set_line_width(0)
+ self.ctx.move_to(*points[0])
for point in points[1:]:
- ctx.line_to(*point)
- ctx.fill()
+ self.ctx.line_to(*point)
+ self.ctx.fill()
def _render_arc(self, arc, color):
- center = map(mul, arc.center, self.scale)
- start = map(mul, arc.start, self.scale)
- end = map(mul, arc.end, self.scale)
+ center = self.scale_point(arc.center)
+ start = self.scale_point(arc.start)
+ end = self.scale_point(arc.end)
radius = self.scale[0] * arc.radius
angle1 = arc.start_angle
angle2 = arc.end_angle
@@ -169,141 +176,137 @@ class GerberCairoContext(GerberContext): width = max(arc.aperture.width, arc.aperture.height, 0.001)
if not self.invert:
- ctx = self.ctx
- ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
- ctx.set_operator(cairo.OPERATOR_OVER if arc.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if arc.level_polarity == "dark"\
+ else cairo.OPERATOR_CLEAR)
else:
- ctx = self.mask_ctx
- ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
- ctx.set_operator(cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ self.ctx.set_operator(cairo.OPERATOR_CLEAR)
- ctx.set_line_width(width * self.scale[0])
- ctx.set_line_cap(cairo.LINE_CAP_ROUND)
- ctx.move_to(*start) # You actually have to do this...
+ self.ctx.set_line_width(width * self.scale[0])
+ self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ self.ctx.move_to(*start) # You actually have to do this...
if arc.direction == 'counterclockwise':
- ctx.arc(center[0], center[1], radius, angle1, angle2)
+ self.ctx.arc(center[0], center[1], radius, angle1, angle2)
else:
- ctx.arc_negative(center[0], center[1], radius, angle1, angle2)
- ctx.move_to(*end) # ...lame
- ctx.stroke()
+ self.ctx.arc_negative(center[0], center[1], radius, angle1, angle2)
+ self.ctx.move_to(*end) # ...lame
def _render_region(self, region, color):
if not self.invert:
- ctx = self.ctx
- ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
- ctx.set_operator(cairo.OPERATOR_OVER if region.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if region.level_polarity == "dark"
+ else cairo.OPERATOR_CLEAR)
else:
- ctx = self.mask_ctx
- ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
- ctx.set_operator(cairo.OPERATOR_CLEAR)
-
- ctx.set_line_width(0)
- ctx.set_line_cap(cairo.LINE_CAP_ROUND)
- ctx.move_to(*tuple(map(mul, region.primitives[0].start, self.scale)))
- for p in region.primitives:
- if isinstance(p, Line):
- ctx.line_to(*tuple(map(mul, p.end, self.scale)))
+ self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ self.ctx.set_operator(cairo.OPERATOR_CLEAR)
+
+ self.ctx.set_line_width(0)
+ self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ self.ctx.move_to(*self.scale_point(region.primitives[0].start))
+ for prim in region.primitives:
+ if isinstance(prim, Line):
+ self.ctx.line_to(*self.scale_point(prim.end))
else:
- center = map(mul, p.center, self.scale)
- start = map(mul, p.start, self.scale)
- end = map(mul, p.end, self.scale)
- radius = self.scale[0] * p.radius
- angle1 = p.start_angle
- angle2 = p.end_angle
- if p.direction == 'counterclockwise':
- ctx.arc(center[0], center[1], radius, angle1, angle2)
+ center = self.scale_point(prim.center)
+ radius = self.scale[0] * prim.radius
+ angle1 = prim.start_angle
+ angle2 = prim.end_angle
+ if prim.direction == 'counterclockwise':
+ self.ctx.arc(*center, radius=radius,
+ angle1=angle1, angle2=angle2)
else:
- ctx.arc_negative(center[0], center[1], radius, angle1, angle2)
- ctx.fill()
-
+ self.ctx.arc_negative(*center, radius=radius,
+ angle1=angle1, angle2=angle2)
+ self.ctx.fill()
def _render_circle(self, circle, color):
- center = tuple(map(mul, circle.position, self.scale))
+ center = self.scale_point(circle.position)
if not self.invert:
- ctx = self.ctx
- ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
- ctx.set_operator(cairo.OPERATOR_OVER if circle.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if circle.level_polarity == "dark"
+ else cairo.OPERATOR_CLEAR)
else:
- ctx = self.mask_ctx
- ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
- ctx.set_operator(cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ self.ctx.set_operator(cairo.OPERATOR_CLEAR)
if circle.hole_diameter > 0:
- ctx.push_group()
+ self.ctx.push_group()
- ctx.set_line_width(0)
- ctx.arc(center[0], center[1], radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi)
- ctx.fill()
+ self.ctx.set_line_width(0)
+ self.ctx.arc(center[0], center[1], radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi)
+ self.ctx.fill()
if circle.hole_diameter > 0:
# Render the center clear
- ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
- ctx.set_operator(cairo.OPERATOR_CLEAR)
- ctx.arc(center[0], center[1], radius=circle.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi)
- ctx.fill()
+ self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
+ self.ctx.set_operator(cairo.OPERATOR_CLEAR)
+ self.ctx.arc(center[0], center[1], radius=circle.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi)
+ self.ctx.fill()
- ctx.pop_group_to_source()
- ctx.paint_with_alpha(1) + self.ctx.pop_group_to_source()
+ self.ctx.paint_with_alpha(1) def _render_rectangle(self, rectangle, color):
- ll = map(mul, rectangle.lower_left, self.scale)
- width, height = tuple(map(mul, (rectangle.width, rectangle.height), map(abs, self.scale)))
+ lower_left = self.scale_point(rectangle.lower_left)
+ width, height = tuple([abs(coord) for coord in self.scale_point((rectangle.width, rectangle.height))])
if not self.invert:
- ctx = self.ctx
- ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
- ctx.set_operator(cairo.OPERATOR_OVER if rectangle.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if rectangle.level_polarity == "dark"
+ else cairo.OPERATOR_CLEAR)
else:
- ctx = self.mask_ctx
- ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
- ctx.set_operator(cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ self.ctx.set_operator(cairo.OPERATOR_CLEAR)
if rectangle.rotation != 0:
- ctx.save()
+ self.ctx.save()
center = map(mul, rectangle.position, self.scale)
matrix = cairo.Matrix()
matrix.translate(center[0], center[1])
# For drawing, we already handles the translation
- ll[0] = ll[0] - center[0]
- ll[1] = ll[1] - center[1]
+ lower_left[0] = lower_left[0] - center[0]
+ lower_left[1] = lower_left[1] - center[1]
matrix.rotate(rectangle.rotation)
- ctx.transform(matrix)
+ self.ctx.transform(matrix)
if rectangle.hole_diameter > 0:
- ctx.push_group()
+ self.ctx.push_group()
- ctx.set_line_width(0)
- ctx.rectangle(ll[0], ll[1], width, height)
- ctx.fill()
+ self.ctx.set_line_width(0)
+ self.ctx.rectangle(lower_left[0], lower_left[1], width, height)
+ self.ctx.fill()
if rectangle.hole_diameter > 0:
# Render the center clear
- ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
- ctx.set_operator(cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
+ self.ctx.set_operator(cairo.OPERATOR_CLEAR)
center = map(mul, rectangle.position, self.scale)
- ctx.arc(center[0], center[1], radius=rectangle.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi)
- ctx.fill()
+ self.ctx.arc(center[0], center[1], radius=rectangle.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi)
+ self.ctx.fill()
- ctx.pop_group_to_source()
- ctx.paint_with_alpha(1)
+ self.ctx.pop_group_to_source()
+ self.ctx.paint_with_alpha(1)
if rectangle.rotation != 0:
- ctx.restore() + self.ctx.restore() def _render_obround(self, obround, color):
if not self.invert:
- ctx = self.ctx
- ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
- ctx.set_operator(cairo.OPERATOR_OVER if obround.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
+ self.ctx.set_operator(cairo.OPERATOR_OVER if obround.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
else:
- ctx = self.mask_ctx
- ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
- ctx.set_operator(cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ self.ctx.set_operator(cairo.OPERATOR_CLEAR)
if obround.hole_diameter > 0:
- ctx.push_group()
+ self.ctx.push_group()
self._render_circle(obround.subshapes['circle1'], color)
self._render_circle(obround.subshapes['circle2'], color)
@@ -311,55 +314,54 @@ class GerberCairoContext(GerberContext): if obround.hole_diameter > 0:
# Render the center clear
- ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
- ctx.set_operator(cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
+ self.ctx.set_operator(cairo.OPERATOR_CLEAR)
center = map(mul, obround.position, self.scale)
- ctx.arc(center[0], center[1], radius=obround.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi)
- ctx.fill()
+ self.ctx.arc(center[0], center[1], radius=obround.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi)
+ self.ctx.fill()
- ctx.pop_group_to_source()
- ctx.paint_with_alpha(1)
+ self.ctx.pop_group_to_source()
+ self.ctx.paint_with_alpha(1)
def _render_polygon(self, polygon, color):
# TODO Ths does not handle rotation of a polygon
if not self.invert:
- ctx = self.ctx
- ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
- ctx.set_operator(cairo.OPERATOR_OVER if polygon.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
+ self.ctx.set_operator(cairo.OPERATOR_OVER if polygon.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
else:
- ctx = self.mask_ctx
- ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
- ctx.set_operator(cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ self.ctx.set_operator(cairo.OPERATOR_CLEAR)
if polygon.hole_radius > 0:
- ctx.push_group()
+ self.ctx.push_group()
vertices = polygon.vertices
- ctx.set_line_width(0)
- ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ self.ctx.set_line_width(0)
+ self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
# Start from before the end so it is easy to iterate and make sure it is closed
- ctx.move_to(*map(mul, vertices[-1], self.scale))
+ self.ctx.move_to(*map(mul, vertices[-1], self.scale))
for v in vertices:
- ctx.line_to(*map(mul, v, self.scale))
+ self.ctx.line_to(*map(mul, v, self.scale))
- ctx.fill()
+ self.ctx.fill()
if polygon.hole_radius > 0:
# Render the center clear
center = tuple(map(mul, polygon.position, self.scale))
- ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
- ctx.set_operator(cairo.OPERATOR_CLEAR)
- ctx.set_line_width(0)
- ctx.arc(center[0], center[1], polygon.hole_radius * self.scale[0], 0, 2 * math.pi)
- ctx.fill()
+ self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
+ self.ctx.set_operator(cairo.OPERATOR_CLEAR)
+ self.ctx.set_line_width(0)
+ self.ctx.arc(center[0], center[1], polygon.hole_radius * self.scale[0], 0, 2 * math.pi)
+ self.ctx.fill()
- ctx.pop_group_to_source()
- ctx.paint_with_alpha(1)
+ self.ctx.pop_group_to_source()
+ self.ctx.paint_with_alpha(1)
- def _render_drill(self, circle, color):
+ def _render_drill(self, circle, color=None):
+ color = color if color is not None else self.drill_color
self._render_circle(circle, color)
def _render_slot(self, slot, color):
@@ -369,19 +371,17 @@ class GerberCairoContext(GerberContext): width = slot.diameter
if not self.invert:
- ctx = self.ctx
- ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
- ctx.set_operator(cairo.OPERATOR_OVER if slot.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
+ self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
+ self.ctx.set_operator(cairo.OPERATOR_OVER if slot.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
else:
- ctx = self.mask_ctx
- ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
- ctx.set_operator(cairo.OPERATOR_CLEAR)
-
- ctx.set_line_width(width * self.scale[0])
- ctx.set_line_cap(cairo.LINE_CAP_ROUND)
- ctx.move_to(*start)
- ctx.line_to(*end)
- ctx.stroke()
+ self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ self.ctx.set_operator(cairo.OPERATOR_CLEAR)
+
+ self.ctx.set_line_width(width * self.scale[0])
+ self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ self.ctx.move_to(*start)
+ self.ctx.line_to(*end)
+ self.ctx.stroke()
def _render_amgroup(self, amgroup, color):
self.ctx.push_group()
@@ -391,33 +391,52 @@ class GerberCairoContext(GerberContext): self.ctx.paint_with_alpha(1)
def _render_test_record(self, primitive, color):
- position = tuple(map(add, primitive.position, self.origin_in_inch))
+ position = [pos + origin for pos, origin in zip(primitive.position, self.origin_in_inch)]
self.ctx.set_operator(cairo.OPERATOR_OVER)
- self.ctx.select_font_face('monospace', cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_BOLD)
+ self.ctx.select_font_face(
+ 'monospace', cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_BOLD)
self.ctx.set_font_size(13)
self._render_circle(Circle(position, 0.015), color)
self.ctx.set_source_rgba(*color, alpha=self.alpha)
- self.ctx.set_operator(cairo.OPERATOR_OVER if primitive.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
- self.ctx.move_to(*[self.scale[0] * (coord + 0.015) for coord in position])
+ self.ctx.set_operator(
+ cairo.OPERATOR_OVER if primitive.level_polarity == 'dark' else cairo.OPERATOR_CLEAR)
+ self.ctx.move_to(*[self.scale[0] * (coord + 0.015)
+ for coord in position])
self.ctx.scale(1, -1)
self.ctx.show_text(primitive.net_name)
- self.ctx.scale(1, -1)
- - def _clear_mask(self): - self.mask_ctx.set_operator(cairo.OPERATOR_OVER)
- self.mask_ctx.set_source_rgba(self.background_color[0], self.background_color[1], self.background_color[2], alpha=self.alpha)
- self.mask_ctx.paint()
-
- def _render_mask(self): - self.ctx.set_operator(cairo.OPERATOR_OVER)
- ptn = cairo.SurfacePattern(self.mask)
+ self.ctx.scale(1, -1) +
+ def _new_render_layer(self, color=None):
+ size_in_pixels = self.scale_point(self.size_in_inch)
+ layer = cairo.SVGSurface(None, size_in_pixels[0], size_in_pixels[1])
+ ctx = cairo.Context(layer)
+ ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD)
+ ctx.scale(1, -1)
+ ctx.translate(-(self.origin_in_inch[0] * self.scale[0]),
+ (-self.origin_in_inch[1] * self.scale[0])
+ - size_in_pixels[1])
+ if self.invert:
+ ctx.set_operator(cairo.OPERATOR_OVER)
+ ctx.set_source_rgba(*self.color, alpha=self.alpha)
+ ctx.paint()
+ self.ctx = ctx
+ self.active_layer = layer
+
+ def _flatten(self):
+ self.output_ctx.set_operator(cairo.OPERATOR_OVER)
+ ptn = cairo.SurfacePattern(self.active_layer) ptn.set_matrix(self._xform_matrix)
- self.ctx.set_source(ptn)
- self.ctx.paint()
+ self.output_ctx.set_source(ptn)
+ self.output_ctx.paint()
+ self.ctx = None
+ self.active_layer = None
def _paint_background(self, force=False):
- if (not self.bg) or force:
- self.bg = True - self.ctx.set_source_rgba(self.background_color[0], self.background_color[1], self.background_color[2], alpha=1.0) - self.ctx.paint()
- + if (not self.bg) or force: + self.bg = True
+ self.output_ctx.set_operator(cairo.OPERATOR_OVER)
+ self.output_ctx.set_source_rgba(self.background_color[0], self.background_color[1], self.background_color[2], alpha=1.0)
+ self.output_ctx.paint()
+
+ def scale_point(self, point):
+ return tuple([coord * scale for coord, scale in zip(point, self.scale)])
\ No newline at end of file |