def create_graphics_context(params):
pagesize = (params['output_width'] * params['output_dpi'],
params['output_height'] * params['output_dpi'])
canvas = Canvas(filename=params['output_name'], pagesize=pagesize)
gc = PdfGraphicsContext(canvas)
gc.set_line_width(params.get('hairline_width', 0.001) * inch)
return gc
def font_metrics_provider():
from reportlab.pdfgen.canvas import Canvas
from reportlab.lib.pagesizes import letter
from kiva.api import Font
# a file will not be created unless save() is called on the context
pdf_canvas = Canvas(filename="enable_tmp.pdf", pagesize=letter)
gc = GraphicsContext(pdf_canvas)
gc.set_font(Font())
return gc
def font_metrics_provider():
from reportlab.pdfgen.canvas import Canvas
from reportlab.lib.pagesizes import letter
from kiva.fonttools import Font
# a file will not be created unless save() is called on the context
pdf_canvas = Canvas(filename='enable_tmp.pdf', pagesize=letter)
gc = GraphicsContext(pdf_canvas)
gc.set_font(Font())
return gc
def __init__(self, pdf_canvas=None, filename=None, pagesize=None,
dest_box=None, dest_box_units=None):
if filename:
self.filename = filename
if pagesize:
self.pagesize = pagesize
if dest_box:
self.dest_box = dest_box
if dest_box_units:
self.dest_box_units = dest_box_units
if pdf_canvas is None:
pdf_canvas = self._create_new_canvas()
GraphicsContext.__init__(self, pdf_canvas)
def __init__(self, pdf_canvas=None, filename=None, pagesize=None,
dest_box=None, dest_box_units=None):
if filename:
self.filename = filename
if pagesize:
self.pagesize = pagesize
if dest_box:
self.dest_box = dest_box
if dest_box_units:
self.dest_box_units = dest_box_units
if pdf_canvas == None:
pdf_canvas = self._create_new_canvas()
GraphicsContext.__init__(self, pdf_canvas)
def create_graphics_context(self, width=300, height=300):
from reportlab.pdfgen.canvas import Canvas
from kiva.pdf import GraphicsContext
filename = "{0}.pdf".format(self.filename)
canvas = Canvas(filename, (width, height))
return GraphicsContext(canvas)
def save_plot_pdf(component, filename, size, dpi=72):
from kiva.pdf import GraphicsContext
from reportlab.pdfgen.canvas import Canvas
from reportlab.lib.units import inch
width = (size[0] / float(dpi)) * inch
height = (size[1] / float(dpi)) * inch
pagesize = (width, height)
canvas = Canvas(filename=filename, pagesize=pagesize)
gc = GraphicsContext(canvas)
old_backbuffer = component.use_backbuffer
try:
component.use_backbuffer = False
component.draw(gc)
finally:
component.use_backbuffer = old_backbuffer
gc.save()
gc.set_stroke_color((0.0, 0.0, 0.0, 1.0))
gc.move_to(w / 3, h / 2)
gc.arc_to(w / 3, 2 * h / 3,
w / 2, 2 * h / 3,
r)
gc.arc_to(2 * w / 3, 2 * h / 3,
2 * w / 3, h / 2,
r)
gc.arc_to(2 * w / 3, h / 3,
w / 2, h / 3,
r)
gc.arc_to(w / 3, h / 3,
w / 3, h / 2,
r)
gc.line_to(w / 3, h / 2)
gc.stroke_path()
canvas = Canvas(filename="arcs.pdf", pagesize=letter)
gc = GraphicsContext(canvas)
gc.set_alpha(0.3)
gc.set_stroke_color((1.0, 0.0, 0.0))
gc.set_fill_color((0.0, 1.0, 0.0))
gc.rect(95, 95, 10, 10)
gc.fill_path()
draw_ellipse(gc, 100, 100, 35.0, 25.0, pi / 6)
draw_round_rect(gc)
gc.save()
gc.move_to(w/3, h/2)
gc.arc_to(w/3, 2*h/3,
w/2, 2*h/3,
r)
gc.arc_to(2*w/3, 2*h/3,
2*w/3, h/2,
r)
gc.arc_to(2*w/3, h/3,
w/2, h/3,
r)
gc.arc_to(w/3, h/3,
w/3, h/2,
r)
gc.line_to(w/3, h/2)
gc.stroke_path()
canvas = Canvas(filename='arcs.pdf', pagesize=letter)
gc = GraphicsContext(canvas)
gc.set_alpha(0.3)
gc.set_stroke_color((1.0,0.0,0.0))
gc.set_fill_color((0.0,1.0,0.0))
gc.rect(95, 95, 10, 10)
gc.fill_path()
draw_ellipse(gc, 100, 100, 35.0, 25.0, pi / 6)
draw_round_rect(gc)
gc.save()
