def OnPrintPage(self, page):
page_objs = self.pages[page - 1]
dc = self.GetDC()
w, h = dc.GetSizeTuple()
pw, ph = self.GetPageSizeMM()
print 'PPI', self.GetPPIPrinter()
print 'DC', w, h
print 'Page', pw, ph
pw *= uc2const.mm_to_pt
ph *= uc2const.mm_to_pt
trafo = (w / pw, 0, 0, -h / ph, w / 2.0, h / 2.0)
canvas_matrix = cairo.Matrix(*trafo)
surface = cairo.ImageSurface(cairo.FORMAT_RGB24, int(w), int(h))
ctx = cairo.Context(surface)
ctx.set_matrix(canvas_matrix)
ctx.set_source_rgb(1, 1, 1)
ctx.paint()
rend = crenderer.CairoRenderer(self.doc.cms)
rend.render(ctx, page_objs)
bmp = wal.copy_surface_to_bitmap(surface)
# dc.DrawBitmap(bmp, 0, 0, False)
return True
def render(objs, cms):
bbox = reduce(lambda a, b: libgeom.sum_bbox(a, b.cache_bbox), objs, [])
w, h = libgeom.bbox_size(bbox)
x, y = libgeom.bbox_center(bbox)
trafo = (1.0, 0, 0, -1.0, w / 2.0 - x, h / 2.0 + y)
canvas_matrix = cairo.Matrix(*trafo)
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, int(w), int(h))
ctx = cairo.Context(surface)
ctx.set_matrix(canvas_matrix)
rend = crenderer.CairoRenderer(cms)
rend.antialias_flag = True
rend.render(ctx, objs)
image_stream = StringIO()
surface.write_to_png(image_stream)
return image_stream
def render(self, sel_flag=False):
doc = self.app.current_doc
if not doc:
return
if sel_flag:
if not doc.selection.objs:
return None
w, h = libgeom.bbox_size(doc.selection.bbox)
x, y = libgeom.bbox_center(doc.selection.bbox)
trafo = (1.0, 0, 0, -1.0, w / 2.0 - x, h / 2.0 + y)
else:
page = doc.active_page
w, h = page.page_format[1]
trafo = (1.0, 0, 0, -1.0, w / 2.0, h / 2.0)
canvas_matrix = cairo.Matrix(*trafo)
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, int(w), int(h))
ctx = cairo.Context(surface)
ctx.set_matrix(canvas_matrix)
rend = crenderer.CairoRenderer(doc.cms)
if sel_flag:
objs = doc.selection.objs
for obj in objs:
layer = doc.methods.get_parent_layer(obj)
rend.antialias_flag = layer.properties[3] == 1
rend.render(ctx, [
obj,
])
else:
page = doc.active_page
layers = doc.methods.get_visible_layers(page)
for item in layers:
rend.antialias_flag = item.properties[3] == 1
rend.render(ctx, item.childs)
image_stream = StringIO()
surface.write_to_png(image_stream)
return image_stream