def repaint(self, cr, x, y, w, h):
c = Context(cr)
w, h = self.repaint_callback(c)
if self.size != (w, h):
self.set_size(w, h)
self.size = (w, h)
def render_json_data(json_text, background_image, png_file):
padding = 50
json = decode_json(json_text)
tree = TreeRootNode(json)
tree.process()
layout = TreeLayouter(tree)
img = ImageSurface(cairo.CAIRO_FORMAT_ARGB32, 10, 100)
ctx = Context(img)
w, h = 500, 500
img = ImageSurface(cairo.CAIRO_FORMAT_ARGB32, w+padding*2, h+padding*2)
ctx = Context(img)
ctx.set_font_size(12)
if background_image:
bgimage = ImageSurface.from_png(background_image)
else:
bgimage = None
if bgimage and bgimage.status() == cairo.CAIRO_STATUS_SUCCESS:
ctx.save()
pat = Pattern(bgimage)
pat.set_extend(cairo.CAIRO_EXTEND_REPEAT)
ctx.set_source(pat)
ctx.paint()
ctx.restore()
else:
ctx.set_source_rgb(1,1,1)
ctx.paint()
#layout.render(ctx, 0, 0)
tree.layout(ctx, 0, 0)
tree.render(ctx)
img.write_to_png(png_file)
return w+padding*2, h+padding*2
def render_json_data_to_file(json_text, background_image, png_file, options):
padding = 50
json = decode_json(json_text)
tree = tree_from_json(None, "query_block", json["query_block"])
tree.process()
tree = strip_useless_nodes(tree)
layout = TreeLayouter(tree, options)
img = ImageSurface(cairo.CAIRO_FORMAT_ARGB32, 10, 100)
ctx = Context(img)
w, h = layout.get_total_size(ctx)
img = ImageSurface(cairo.CAIRO_FORMAT_ARGB32, w + padding * 2,
h + padding * 2)
ctx = Context(img)
ctx.set_font_size(12)
if background_image:
bgimage = ImageSurface.from_png(background_image)
else:
bgimage = None
if bgimage and bgimage.status() == cairo.CAIRO_STATUS_SUCCESS:
ctx.save()
pat = Pattern(bgimage)
pat.set_extend(cairo.CAIRO_EXTEND_REPEAT)
ctx.set_source(pat)
ctx.paint()
ctx.restore()
else:
ctx.set_source_rgb(1, 1, 1)
ctx.paint()
layout.render(ctx, padding, padding)
img.write_to_png(png_file)
return w + padding * 2, h + padding * 2
def render_json_data_to_file(json_text, background_image, png_file, options):
padding = 50
scale = options.get("scale", 1)
json = decode_json(json_text)
layout = prepare_layout(json, options)
img = ImageSurface(cairo.CAIRO_FORMAT_ARGB32, 10, 100)
ctx = Context(img)
w, h = layout.get_total_size(ctx)
img = ImageSurface(cairo.CAIRO_FORMAT_ARGB32, (w+padding*2)*scale, (h+padding*2)*scale)
ctx = Context(img)
ctx.scale(scale, scale)
ctx.set_font_size(12)
if background_image:
bgimage = ImageSurface.from_png(background_image)
else:
bgimage = None
if bgimage and bgimage.status() == cairo.CAIRO_STATUS_SUCCESS:
ctx.save()
pat = Pattern(bgimage)
pat.set_extend(cairo.CAIRO_EXTEND_REPEAT)
ctx.set_source(pat)
ctx.paint()
ctx.restore()
else:
ctx.set_source_rgb(1,1,1)
ctx.paint()
layout.render(ctx, padding, padding)
img.write_to_png(png_file)
return w+padding*2, h+padding*2