summaryrefslogtreecommitdiff
path: root/gerber/render/cairo_backend.py
diff options
context:
space:
mode:
Diffstat (limited to 'gerber/render/cairo_backend.py')
-rw-r--r--gerber/render/cairo_backend.py25
1 files changed, 19 insertions, 6 deletions
diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py
index 3c4a395..fe27d60 100644
--- a/gerber/render/cairo_backend.py
+++ b/gerber/render/cairo_backend.py
@@ -15,19 +15,23 @@
# See the License for the specific language governing permissions and
# limitations under the License.
-from .render import GerberContext
-
+
try:
import cairo
except ImportError:
- import cairocffi as cairo
-
+ import cairocffi as cairo
from operator import mul
import math
import tempfile
+from .render import GerberContext
from ..primitives import *
+try:
+ from cStringIO import StringIO
+except(ImportError):
+ from io import StringIO
+
class GerberCairoContext(GerberContext):
def __init__(self, scale=300):
@@ -272,8 +276,8 @@ class GerberCairoContext(GerberContext):
self.ctx.scale(1, -1)
self.ctx.show_text(primitive.net_name)
self.ctx.scale(1, -1)
-
- def _paint_inverted_layer(self):
+
+ 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()
@@ -302,7 +306,16 @@ class GerberCairoContext(GerberContext):
else:
return self.surface.write_to_png(filename)
+ def dump_str(self):
+ """ Return a string containing the rendered image.
+ """
+ fobj = StringIO()
+ self.surface.write_to_png(fobj)
+ return fobj.getvalue()
+
def dump_svg_str(self):
+ """ Return a string containg the rendered SVG.
+ """
self.surface.finish()
self.surface_buffer.flush()
return self.surface_buffer.read()