def _snap(self, bbox, trafo):
result = [] + trafo
points = libgeom.bbox_middle_points(bbox)
tr_points = libgeom.apply_trafo_to_points(points, trafo)
active_snap = [None, None]
shift_x = []
snap_x = []
for point in [tr_points[0], tr_points[2], tr_points[1]]:
flag, wp, dp = self.snap.snap_point(point, False, snap_y=False)
if flag:
shift_x.append(dp[0] - point[0])
snap_x.append(dp[0])
if shift_x:
if len(shift_x) > 1:
if abs(shift_x[0]) < abs(shift_x[1]):
dx = shift_x[0]
active_snap[0] = snap_x[0]
else:
dx = shift_x[1]
active_snap[0] = snap_x[1]
else:
dx = shift_x[0]
active_snap[0] = snap_x[0]
result[4] += dx
shift_y = []
snap_y = []
pnts = [tr_points[1], tr_points[3], tr_points[2]]
if len(self.selection.objs) == 1 and self.selection.objs[0].is_text:
line_points = self.selection.objs[0].get_line_points()
pnts = libgeom.apply_trafo_to_points(line_points, trafo) + pnts
for point in pnts:
flag, wp, dp = self.snap.snap_point(point, False, snap_x=False)
if flag:
shift_y.append(dp[1] - point[1])
snap_y.append(dp[1])
if shift_y:
if len(shift_y) > 1:
if abs(shift_y[0]) < abs(shift_y[1]):
dy = shift_y[0]
active_snap[1] = snap_y[0]
else:
dy = shift_y[1]
active_snap[1] = snap_y[1]
else:
dy = shift_y[0]
active_snap[1] = snap_y[0]
result[5] += dy
self.snap.active_snap = [] + active_snap
return result
def _snap(self, bbox, trafo): result = [] + trafo points = libgeom.bbox_middle_points(bbox) tr_points = libgeom.apply_trafo_to_points(points, trafo) active_snap = [None, None] shift_x = [] snap_x = [] for point in [tr_points[0], tr_points[2], tr_points[1]]: flag, wp, dp = self.snap.snap_point(point, False, snap_y=False) if flag: shift_x.append(dp[0] - point[0]) snap_x.append(dp[0]) if shift_x: if len(shift_x) > 1: if abs(shift_x[0]) < abs(shift_x[1]): dx = shift_x[0] active_snap[0] = snap_x[0] else: dx = shift_x[1] active_snap[0] = snap_x[1] else: dx = shift_x[0] active_snap[0] = snap_x[0] result[4] += dx shift_y = [] snap_y = [] pnts = [tr_points[1], tr_points[3], tr_points[2]] if len(self.selection.objs) == 1 and self.selection.objs[0].is_text(): line_points = self.selection.objs[0].get_line_points() pnts = libgeom.apply_trafo_to_points(line_points, trafo) + pnts for point in pnts: flag, wp, dp = self.snap.snap_point(point, False, snap_x=False) if flag: shift_y.append(dp[1] - point[1]) snap_y.append(dp[1]) if shift_y: if len(shift_y) > 1: if abs(shift_y[0]) < abs(shift_y[1]): dy = shift_y[0] active_snap[1] = snap_y[0] else: dy = shift_y[1] active_snap[1] = snap_y[1] else: dy = shift_y[0] active_snap[1] = snap_y[0] result[5] += dy self.snap.active_snap = [] + active_snap return result
def process_stroke(self, ctx, obj, style=None): if style: stroke = style[1] else: stroke = obj.style[1] #FIXME: add stroke style #Line width if not stroke[8]: line_width = stroke[1] if obj and obj.stroke_trafo: obj.stroke_trafo = [] else: if obj and not obj.stroke_trafo: obj.stroke_trafo = [] + sk2_const.NORMAL_TRAFO points = [[0.0, 0.0], [1.0, 0.0]] points = libgeom.apply_trafo_to_points(points, obj.stroke_trafo) coef = libgeom.distance(*points) line_width = stroke[1] * coef ctx.set_line_width(line_width) #Line color ctx.set_source_rgba(*self.get_color(stroke[2])) #Dashes dash = [] for item in stroke[3]:dash.append(item * line_width) ctx.set_dash(dash) ctx.set_line_cap(CAPS[stroke[4]]) ctx.set_line_join(JOINS[stroke[5]]) ctx.set_miter_limit(stroke[6])
def _get_doc_vector(self, style): ret = [] vector = style[0][2][1] vector = libgeom.apply_trafo_to_points(vector, self.target.fill_trafo) for item in vector: ret.append(VectorPoint(self.canvas, item)) return ret
def stroke_pdfpath(self, pdfpath, stroke_style, stroke_trafo=[]):
width = stroke_style[1]
if not stroke_style[8]:
width = stroke_style[1]
else:
if not stroke_trafo:
stroke_trafo = [] + sk2const.NORMAL_TRAFO
points = [[0.0, 0.0], [1.0, 0.0]]
points = libgeom.apply_trafo_to_points(points, stroke_trafo)
coef = libgeom.distance(*points)
width = stroke_style[1] * coef
self.canvas.setStrokeColor(self.get_pdfcolor(stroke_style[2]))
dash = stroke_style[3]
caps = stroke_style[4]
joint = stroke_style[5]
miter = stroke_style[6]
self.canvas.setLineWidth(width)
self.canvas.setLineCap(caps - 1)
self.canvas.setLineJoin(joint)
dashes = []
if dash:
dashes = list(dash)
w = width
if w < 1.0: w = 1.0
for i in range(len(dashes)):
dashes[i] = w * dashes[i]
self.canvas.setDash(dashes)
self.canvas.setMiterLimit(miter)
self.canvas.drawPath(pdfpath, 1, 0)
self.canvas.setStrokeAlpha(1.0)
def process_stroke(self, ctx, obj, style=None):
if style:
stroke = style[1]
else:
stroke = obj.style[1]
# Line width
if not stroke[8]:
line_width = stroke[1]
if obj and obj.stroke_trafo:
obj.stroke_trafo = []
else:
if obj and not obj.stroke_trafo:
obj.stroke_trafo = [] + sk2const.NORMAL_TRAFO
points = [[0.0, 0.0], [1.0, 0.0]]
points = libgeom.apply_trafo_to_points(points, obj.stroke_trafo)
coef = libgeom.distance(*points)
line_width = stroke[1] * coef
ctx.set_line_width(line_width)
# Line color
ctx.set_source_rgba(*self.get_color(stroke[2]))
# Dashes
dash = []
for item in stroke[3]:
dash.append(item * line_width)
ctx.set_dash(dash)
ctx.set_line_cap(CAPS[stroke[4]])
ctx.set_line_join(JOINS[stroke[5]])
ctx.set_miter_limit(stroke[6])
def stroke_pdfpath(self, pdfpath, stroke_style, stroke_trafo=[]): width = stroke_style[1] if not stroke_style[8]: width = stroke_style[1] else: if not stroke_trafo: stroke_trafo = [] + sk2_const.NORMAL_TRAFO points = [[0.0, 0.0], [1.0, 0.0]] points = libgeom.apply_trafo_to_points(points, stroke_trafo) coef = libgeom.distance(*points) width = stroke_style[1] * coef self.canvas.setStrokeColor(self.get_pdfcolor(stroke_style[2])) dash = stroke_style[3] caps = stroke_style[4] joint = stroke_style[5] miter = stroke_style[6] self.canvas.setLineWidth(width) self.canvas.setLineCap(caps - 1) self.canvas.setLineJoin(joint) dashes = [] if dash: dashes = list(dash) w = width if w < 1.0: w = 1.0 for i in range(len(dashes)): dashes[i] = w * dashes[i] self.canvas.setDash(dashes) self.canvas.setMiterLimit(miter) self.canvas.drawPath(pdfpath, 1, 0) self.canvas.setStrokeAlpha(1.0)
def _get_doc_vector(self, style):
ret = []
vector = style[0][2][1]
vector = libgeom.apply_trafo_to_points(vector, self.target.fill_trafo)
for item in vector:
ret.append(VectorPoint(self.canvas, item))
return ret
def _circular_arc_3_point_close(self, element):
p1, chunk = self.read_point(element.params)
p2, chunk = self.read_point(chunk)
p3, chunk = self.read_point(chunk)
flag = self.read_enum(chunk)[0]
p1, p2, p3 = libgeom.apply_trafo_to_points([p1, p2, p3],
self.get_trafo())
center = libgeom.circle_center_by_3points(p1, p2, p3)
if not center:
return
r = libgeom.distance(center, p1)
angle1 = libgeom.get_point_angle(p3, center)
angle2 = libgeom.get_point_angle(p1, center)
x, y = center
rect = [x - r, y - r, 2 * r, 2 * r]
flag = {
0: sk2const.ARC_PIE_SLICE,
1: sk2const.ARC_CHORD
}.get(flag, sk2const.ARC_CHORD)
circle = sk2_model.Circle(self.layer.config,
self.layer,
rect,
angle1=angle1,
angle2=angle2,
circle_type=flag,
style=self.get_style(fill=True))
self.layer.childs.append(circle)
def _set_target_vector(self, temp=True): itrafo = libgeom.invert_trafo(self.target.fill_trafo) vector = [self.vector[0].point, self.vector[1].point] self.new_style[0][2][1] = libgeom.apply_trafo_to_points(vector, itrafo) if temp: self.api.set_temp_style(self.target, self.new_style) else: self.api.set_fill_style(deepcopy(self.new_style[0])) events.emit(events.APP_STATUS, self.msg)
def _set_target_vector(self, temp=True):
itrafo = libgeom.invert_trafo(self.target.fill_trafo)
vector = [self.vector[0].point, self.vector[1].point]
self.new_style[0][2][1] = libgeom.apply_trafo_to_points(vector, itrafo)
if temp:
self.api.set_temp_style(self.target, self.new_style)
else:
self.api.set_fill_style(deepcopy(self.new_style[0]))
events.emit(events.APP_STATUS, self.msg)
def fill_radial_tr_gradient(self, obj, pdfpath, fill_trafo, gradient):
if not fill_trafo:
fill_trafo = [1.0, 0.0, 0.0, 1.0, 0.0, 0.0]
stops = gradient[2]
sp, ep = gradient[1]
dx, dy = sp
l = libgeom.distance(sp, ep)
trafo = [1.0, 0.0, 0.0, 1.0, dx, dy]
inv_trafo = libgeom.multiply_trafo(libgeom.invert_trafo(fill_trafo),
libgeom.invert_trafo(trafo))
cv_trafo = libgeom.multiply_trafo(trafo, fill_trafo)
paths = libgeom.apply_trafo_to_paths(obj.paths, obj.trafo)
paths = libgeom.apply_trafo_to_paths(paths, inv_trafo)
bbox = libgeom.sum_bbox(libgeom.get_paths_bbox(paths),
[0.0, 0.0, l, 0.0])
bbox = libgeom.normalize_bbox(bbox)
d = libgeom.distance(*libgeom.apply_trafo_to_points([[0.0, 0.0],
[0.0, 1.0]],
inv_trafo))
circle_paths = libgeom.get_circle_paths(0.0, 0.0, sk2const.ARC_CHORD)
trafo = [2.0, 0.0, 0.0, 2.0, -1.0, -1.0]
circle_paths = libgeom.apply_trafo_to_paths(circle_paths, trafo)
inner_paths = []
r = 0.0
self.canvas.saveState()
self.canvas.clipPath(pdfpath, 0, 0)
self.canvas.transform(*cv_trafo)
while r < l:
point = r / l
self.canvas.setFillColor(self.get_grcolor_at_point(stops, point))
if r + d < l:
coef = (r + d)
else:
coef = l
trafo = [coef, 0.0, 0.0, coef, 0.0, 0.0]
paths = libgeom.apply_trafo_to_paths(circle_paths, trafo)
ring = self.make_pdfpath(inner_paths + paths)[0]
inner_paths = paths
self.canvas.drawPath(ring, stroke=0, fill=1)
r += d
self.canvas.setFillColor(self.get_grcolor_at_point(stops, 1.0))
r = max(bbox[2] - bbox[0], bbox[3] - bbox[1])
trafo = [2.0 * r, 0.0, 0.0, 2.0 * r, 0.0, 0.0]
paths = libgeom.apply_trafo_to_paths(circle_paths, trafo)
ring = self.make_pdfpath(inner_paths + paths)[0]
self.canvas.drawPath(ring, stroke=0, fill=1)
self.canvas.restoreState()
def fill_linear_tr_gradient(self, obj, pdfpath, fill_trafo, gradient):
if not fill_trafo:
fill_trafo = [1.0, 0.0, 0.0, 1.0, 0.0, 0.0]
stops = gradient[2]
sp, ep = gradient[1]
dx, dy = sp
l = libgeom.distance(sp, ep)
angle = libgeom.get_point_angle(ep, sp)
m21 = math.sin(angle)
m11 = m22 = math.cos(angle)
m12 = -m21
trafo = [m11, m21, m12, m22, dx, dy]
inv_trafo = libgeom.multiply_trafo(libgeom.invert_trafo(fill_trafo),
libgeom.invert_trafo(trafo))
cv_trafo = libgeom.multiply_trafo(trafo, fill_trafo)
paths = libgeom.apply_trafo_to_paths(obj.paths, obj.trafo)
paths = libgeom.apply_trafo_to_paths(paths, inv_trafo)
bbox = libgeom.sum_bbox(libgeom.get_paths_bbox(paths),
[0.0, 0.0, l, 0.0])
bbox = libgeom.normalize_bbox(bbox)
y = bbox[1]
d = libgeom.distance(*libgeom.apply_trafo_to_points([[0.0, 0.0],
[0.0, 1.0]],
inv_trafo))
height = bbox[3] - bbox[1]
self.canvas.saveState()
self.canvas.clipPath(pdfpath, 0, 0)
self.canvas.transform(*cv_trafo)
self.canvas.setFillColor(self.get_grcolor_at_point(stops, 0.0))
self.canvas.rect(bbox[0], y, 0.0 - bbox[0], height, stroke=0, fill=1)
x = 0.0
while x < l:
point = x / l
self.canvas.setFillColor(self.get_grcolor_at_point(stops, point))
if x + d < l:
width = d
else:
width = l - x
self.canvas.rect(x, y, width, height, stroke=0, fill=1)
x += d
self.canvas.setFillColor(self.get_grcolor_at_point(stops, 1.0))
self.canvas.rect(l, y, bbox[2] - l, height, stroke=0, fill=1)
self.canvas.restoreState()
def update_stroke(self):
stroke = self.style[1]
if not stroke:
return
if not stroke[8]:
self.cache_line_width = stroke[1]
self.stroke_trafo = []
else:
if not self.stroke_trafo:
self.stroke_trafo = [] + sk2const.NORMAL_TRAFO
points = [[0.0, 0.0], [1.0, 0.0]]
points = libgeom.apply_trafo_to_points(points, self.stroke_trafo)
coef = libgeom.distance(*points)
self.cache_line_width = stroke[1] * coef
self.update_arrows()
def fill_radial_tr_gradient(self, obj, pdfpath, fill_trafo, gradient): if not fill_trafo: fill_trafo = [1.0, 0.0, 0.0, 1.0, 0.0, 0.0] stops = gradient[2] sp, ep = gradient[1] dx, dy = sp l = libgeom.distance(sp, ep) trafo = [1.0, 0.0, 0.0, 1.0, dx, dy] inv_trafo = libgeom.multiply_trafo(libgeom.invert_trafo(fill_trafo), libgeom.invert_trafo(trafo)) cv_trafo = libgeom.multiply_trafo(trafo, fill_trafo) paths = libgeom.apply_trafo_to_paths(obj.paths, obj.trafo) paths = libgeom.apply_trafo_to_paths(paths, inv_trafo) bbox = libgeom.sum_bbox(libgeom.get_paths_bbox(paths), [0.0, 0.0, l, 0.0]) bbox = libgeom.normalize_bbox(bbox) d = libgeom.distance(*libgeom.apply_trafo_to_points([[0.0, 0.0], [0.0, 1.0]], inv_trafo)) circle_paths = libgeom.get_circle_paths(0.0, 0.0, sk2_const.ARC_CHORD) trafo = [2.0, 0.0, 0.0, 2.0, -1.0, -1.0] circle_paths = libgeom.apply_trafo_to_paths(circle_paths, trafo) inner_paths = [] r = 0.0 self.canvas.saveState() self.canvas.clipPath(pdfpath, 0, 0) self.canvas.transform(*cv_trafo) while r < l: point = r / l self.canvas.setFillColor(self.get_grcolor_at_point(stops, point)) if r + d < l: coef = (r + d) else: coef = l trafo = [coef, 0.0, 0.0, coef, 0.0, 0.0] paths = libgeom.apply_trafo_to_paths(circle_paths, trafo) ring = self.make_pdfpath(inner_paths + paths)[0] inner_paths = paths self.canvas.drawPath(ring, stroke=0, fill=1) r += d self.canvas.setFillColor(self.get_grcolor_at_point(stops, 1.0)) r = max(bbox[2] - bbox[0], bbox[3] - bbox[1]) trafo = [2.0 * r, 0.0, 0.0, 2.0 * r, 0.0, 0.0] paths = libgeom.apply_trafo_to_paths(circle_paths, trafo) ring = self.make_pdfpath(inner_paths + paths)[0] self.canvas.drawPath(ring, stroke=0, fill=1) self.canvas.restoreState()
def fill_linear_tr_gradient(self, obj, pdfpath, fill_trafo, gradient): if not fill_trafo: fill_trafo = [1.0, 0.0, 0.0, 1.0, 0.0, 0.0] stops = gradient[2] sp, ep = gradient[1] dx, dy = sp l = libgeom.distance(sp, ep) angle = libgeom.get_point_angle(ep, sp) m21 = math.sin(angle) m11 = m22 = math.cos(angle) m12 = -m21 trafo = [m11, m21, m12, m22, dx, dy] inv_trafo = libgeom.multiply_trafo(libgeom.invert_trafo(fill_trafo), libgeom.invert_trafo(trafo)) cv_trafo = libgeom.multiply_trafo(trafo, fill_trafo) paths = libgeom.apply_trafo_to_paths(obj.paths, obj.trafo) paths = libgeom.apply_trafo_to_paths(paths, inv_trafo) bbox = libgeom.sum_bbox(libgeom.get_paths_bbox(paths), [0.0, 0.0, l, 0.0]) bbox = libgeom.normalize_bbox(bbox) y = bbox[1] d = libgeom.distance(*libgeom.apply_trafo_to_points([[0.0, 0.0], [0.0, 1.0]], inv_trafo)) height = bbox[3] - bbox[1] self.canvas.saveState() self.canvas.clipPath(pdfpath, 0, 0) self.canvas.transform(*cv_trafo) self.canvas.setFillColor(self.get_grcolor_at_point(stops, 0.0)) self.canvas.rect(bbox[0], y, 0.0 - bbox[0], height, stroke=0, fill=1) x = 0.0 while x < l: point = x / l self.canvas.setFillColor(self.get_grcolor_at_point(stops, point)) if x + d < l: width = d else: width = l - x self.canvas.rect(x, y, width, height, stroke=0, fill=1) x += d self.canvas.setFillColor(self.get_grcolor_at_point(stops, 1.0)) self.canvas.rect(l, y, bbox[2] - l, height, stroke=0, fill=1) self.canvas.restoreState()
def _circular_arc_centre(self, element):
center, chunk = self.read_point(element.params)
p1, chunk = self.read_point(chunk)
p2, chunk = self.read_point(chunk)
center, p1, p2 = libgeom.apply_trafo_to_points(
[center, p1, p2], self.get_trafo())
r = self.read_vdc(chunk)[0] * self.scale
angle1 = libgeom.get_point_angle(p1, center)
angle2 = libgeom.get_point_angle(p2, center)
x, y = center
rect = [x - r, y - r, 2 * r, 2 * r]
circle = sk2_model.Circle(self.layer.config, self.layer, rect,
angle1=angle1,
angle2=angle2,
circle_type=sk2const.ARC_ARC,
style=self.get_style(stroke=True))
self.layer.childs.append(circle)
def translate_pixmap(self, obj):
obj.update()
doc_id = urlsafe_b64encode(self.fig_doc.doc_id)
idx = len(self.fig_doc.resources)
filename = '{}-{}.png'.format(doc_id, idx)
image_stream = crenderer.render([obj], self.sk2_doc.cms)
self.fig_doc.resources[filename] = image_stream.getvalue()
x0, y0, x1, y1 = obj.cache_bbox
points = [[x0, y1], [x1, y1], [x1, y0], [x0, y0], [x0, y1]]
points = libgeom.apply_trafo_to_points(points, self.trafo)
props = dict(
sub_type=fig_const.T_PIC_BOX,
childs=[fig_model.FIGPicture(file=filename)],
npoints=len(points),
points=points,
depth=self.current_depth,
)
self.add(fig_model.FIGPolyline(**props))
def paint_cursor(self):
if self.text_cursor < len(self.target.cache_layout_data):
data = self.target.cache_layout_data[self.text_cursor]
p0 = [data[0], data[1]]
p1 = [data[0], data[1] - data[3]]
else:
data = self.target.cache_layout_data[-1]
if self.text[-1] == '\n':
p0 = [0.0, data[1] - data[3]]
p1 = [0.0, data[1] - 2.0 * data[3]]
else:
p0 = [data[0] + data[2], data[1]]
p1 = [data[0] + data[2], data[1] - data[3]]
trafo = self.target.trafo
if self.text_cursor in self.trafos:
trafo = self.trafos[self.text_cursor]
p0, p1 = libgeom.apply_trafo_to_points([p0, p1], trafo)
p0 = self.canvas.point_doc_to_win(p0)
p1 = self.canvas.point_doc_to_win(p1)
self.canvas.renderer.draw_text_cursor(p0, p1)
def _circular_arc_centre_close(self, element):
center, chunk = self.read_point(element.params)
p1, chunk = self.read_point(chunk)
p2, chunk = self.read_point(chunk)
flag = self.read_enum(chunk)[0]
center, p1, p2 = libgeom.apply_trafo_to_points(
[center, p1, p2], self.get_trafo())
r = self.read_vdc(chunk)[0] * self.scale
angle1 = libgeom.get_point_angle(p1, center)
angle2 = libgeom.get_point_angle(p2, center)
x, y = center
rect = [x - r, y - r, 2 * r, 2 * r]
flag = {0: sk2const.ARC_PIE_SLICE,
1: sk2const.ARC_CHORD}.get(flag, sk2const.ARC_CHORD)
circle = sk2_model.Circle(self.layer.config, self.layer, rect,
angle1=angle1,
angle2=angle2,
circle_type=flag,
style=self.get_style(fill=True))
self.layer.childs.append(circle)
def _circular_arc_3_point(self, element):
p1, chunk = self.read_point(element.params)
p2, chunk = self.read_point(chunk)
p3, chunk = self.read_point(chunk)
p1, p2, p3 = libgeom.apply_trafo_to_points(
[p1, p2, p3], self.get_trafo())
center = libgeom.circle_center_by_3points(p1, p2, p3)
if not center:
return
r = libgeom.distance(center, p1)
angle1 = libgeom.get_point_angle(p3, center)
angle2 = libgeom.get_point_angle(p1, center)
x, y = center
rect = [x - r, y - r, 2 * r, 2 * r]
circle = sk2_model.Circle(self.layer.config, self.layer, rect,
angle1=angle1,
angle2=angle2,
circle_type=sk2const.ARC_ARC,
style=self.get_style(stroke=True))
self.layer.childs.append(circle)
def parse_svg_path_cmds(pathcmds):
index = 0
last = None
last_index = 0
cmds = []
pathcmds = re.sub(' *', ' ', pathcmds)
for item in pathcmds:
if item in 'MmZzLlHhVvCcSsQqTtAa':
if last:
coords = parse_svg_coords(pathcmds[last_index + 1:index])
cmds.append((last, coords))
last = item
last_index = index
index += 1
coords = parse_svg_coords(pathcmds[last_index + 1:index])
cmds.append([last, coords])
paths = []
path = []
cpoint = []
rel_flag = False
last_cmd = 'M'
last_quad = None
for cmd in cmds:
if cmd[0] in 'Mm':
if path: paths.append(path)
path = deepcopy(PATH_STUB)
rel_flag = cmd[0] == 'm'
points = [cmd[1][i:i + 2] for i in range(0, len(cmd[1]), 2)]
for point in points:
if cpoint and rel_flag:
point = add_points(base_point(cpoint), point)
if not path[0]:
path[0] = point
else:
path[1].append(point)
cpoint = point
elif cmd[0] in 'Zz':
p0 = [] + base_point(cpoint)
p1 = [] + path[0]
if not libgeom.is_equal_points(p0, p1, 8):
path[1].append([] + path[0])
path[2] = sk2const.CURVE_CLOSED
cpoint = [] + path[0]
elif cmd[0] in 'Cc':
rel_flag = cmd[0] == 'c'
points = [cmd[1][i:i + 2] for i in range(0, len(cmd[1]), 2)]
points = [points[i:i + 3] for i in range(0, len(points), 3)]
for point in points:
if rel_flag:
point = [
add_points(base_point(cpoint), point[0]),
add_points(base_point(cpoint), point[1]),
add_points(base_point(cpoint), point[2])
]
qpoint = [] + point
qpoint.append(sk2const.NODE_CUSP)
path[1].append(qpoint)
cpoint = point
elif cmd[0] in 'Ll':
rel_flag = cmd[0] == 'l'
points = [cmd[1][i:i + 2] for i in range(0, len(cmd[1]), 2)]
for point in points:
if rel_flag:
point = add_points(base_point(cpoint), point)
path[1].append(point)
cpoint = point
elif cmd[0] in 'Hh':
rel_flag = cmd[0] == 'h'
for x in cmd[1]:
dx, y = base_point(cpoint)
if rel_flag:
point = [x + dx, y]
else:
point = [x, y]
path[1].append(point)
cpoint = point
elif cmd[0] in 'Vv':
rel_flag = cmd[0] == 'v'
for y in cmd[1]:
x, dy = base_point(cpoint)
if rel_flag:
point = [x, y + dy]
else:
point = [x, y]
path[1].append(point)
cpoint = point
elif cmd[0] in 'Ss':
rel_flag = cmd[0] == 's'
points = [cmd[1][i:i + 2] for i in range(0, len(cmd[1]), 2)]
points = [points[i:i + 2] for i in range(0, len(points), 2)]
for point in points:
q = cpoint
p = cpoint
if len(cpoint) > 2:
q = cpoint[1]
p = cpoint[2]
p1 = sub_points(add_points(p, p), q)
if rel_flag:
p2 = add_points(base_point(cpoint), point[0])
p3 = add_points(base_point(cpoint), point[1])
else:
p2, p3 = point
point = [p1, p2, p3]
qpoint = [] + point
qpoint.append(sk2const.NODE_CUSP)
path[1].append(qpoint)
cpoint = point
elif cmd[0] in 'Qq':
rel_flag = cmd[0] == 'q'
groups = [cmd[1][i:i + 4] for i in range(0, len(cmd[1]), 4)]
for vals in groups:
p = base_point(cpoint)
if rel_flag:
q = add_points(p, [vals[0], vals[1]])
p3 = add_points(p, [vals[2], vals[3]])
else:
q = [vals[0], vals[1]]
p3 = [vals[2], vals[3]]
p1 = add_points(mult_point(p, F13), mult_point(q, F23))
p2 = add_points(mult_point(p3, F13), mult_point(q, F23))
point = [p1, p2, p3]
qpoint = [] + point
qpoint.append(sk2const.NODE_CUSP)
path[1].append(qpoint)
cpoint = point
last_quad = q
elif cmd[0] in 'Tt':
rel_flag = cmd[0] == 't'
groups = [cmd[1][i:i + 2] for i in range(0, len(cmd[1]), 2)]
if last_cmd not in 'QqTt' or last_quad is None:
last_quad = base_point(cpoint)
for vals in groups:
p = base_point(cpoint)
q = sub_points(mult_point(p, 2.0), last_quad)
if rel_flag:
p3 = add_points(p, [vals[0], vals[1]])
else:
p3 = [vals[0], vals[1]]
p1 = add_points(mult_point(p, F13), mult_point(q, F23))
p2 = add_points(mult_point(p3, F13), mult_point(q, F23))
point = [p1, p2, p3]
qpoint = [] + point
qpoint.append(sk2const.NODE_CUSP)
path[1].append(qpoint)
cpoint = point
last_quad = q
elif cmd[0] in 'Aa':
rel_flag = cmd[0] == 'a'
arcs = [cmd[1][i:i + 7] for i in range(0, len(cmd[1]), 7)]
for arc in arcs:
cpoint = base_point(cpoint)
rev_flag = False
rx, ry, xrot, large_arc_flag, sweep_flag, x, y = arc
rx = abs(rx)
ry = abs(ry)
if rel_flag:
x += cpoint[0]
y += cpoint[1]
if cpoint == [x, y]: continue
if not rx or not ry:
path[1].append([x, y])
continue
vector = [[] + cpoint, [x, y]]
if sweep_flag:
vector = [[x, y], [] + cpoint]
rev_flag = True
cpoint = [x, y]
dir_tr = libgeom.trafo_rotate_grad(-xrot)
if rx > ry:
tr = [1.0, 0.0, 0.0, rx / ry, 0.0, 0.0]
r = rx
else:
tr = [ry / rx, 0.0, 0.0, 1.0, 0.0, 0.0]
r = ry
dir_tr = libgeom.multiply_trafo(dir_tr, tr)
vector = libgeom.apply_trafo_to_points(vector, dir_tr)
l = libgeom.distance(*vector)
if l > 2.0 * r: r = l / 2.0
mp = libgeom.midpoint(*vector)
tr0 = libgeom.trafo_rotate(math.pi / 2.0, mp[0], mp[1])
pvector = libgeom.apply_trafo_to_points(vector, tr0)
k = math.sqrt(r * r - l * l / 4.0)
if large_arc_flag:
center = libgeom.midpoint(mp, pvector[1], 2.0 * k / l)
else:
center = libgeom.midpoint(mp, pvector[0], 2.0 * k / l)
angle1 = libgeom.get_point_angle(vector[0], center)
angle2 = libgeom.get_point_angle(vector[1], center)
da = angle2 - angle1
start = angle1
end = angle2
if large_arc_flag:
if -math.pi >= da or da <= math.pi:
start = angle2
end = angle1
rev_flag = not rev_flag
else:
if -math.pi <= da or da >= math.pi:
start = angle2
end = angle1
rev_flag = not rev_flag
pth = libgeom.get_circle_paths(start, end, sk2const.ARC_ARC)[0]
if rev_flag:
pth = libgeom.reverse_path(pth)
points = pth[1]
for point in points:
if len(point) == 3:
point.append(sk2const.NODE_CUSP)
tr0 = [1.0, 0.0, 0.0, 1.0, -0.5, -0.5]
points = libgeom.apply_trafo_to_points(points, tr0)
tr1 = [2.0 * r, 0.0, 0.0, 2.0 * r, 0.0, 0.0]
points = libgeom.apply_trafo_to_points(points, tr1)
tr2 = [1.0, 0.0, 0.0, 1.0, center[0], center[1]]
points = libgeom.apply_trafo_to_points(points, tr2)
tr3 = libgeom.invert_trafo(dir_tr)
points = libgeom.apply_trafo_to_points(points, tr3)
for point in points:
path[1].append(point)
last_cmd = cmd[0]
if path: paths.append(path)
return paths
def _get_win_vector(self, style): vector = style[0][2][1] vector = libgeom.apply_trafo_to_points(vector, self.target.fill_trafo) p0 = self.canvas.point_doc_to_win(vector[0]) p1 = self.canvas.point_doc_to_win(vector[1]) return p0, p1
def make_v1_objects(self, parent_instr, obj):
if obj.is_group and obj.childs:
kwargs = {
'bbox': (0, 0, 0, 0),
'tail': '\x00\x00',
}
group_instr = mkinstr(self.cmx_cfg,
identifier=cmx_const.BEGIN_GROUP,
**kwargs)
parent_instr.add(group_instr)
for item in obj.childs:
self.make_v1_objects(group_instr, item)
group_instr.add(
mkinstr(self.cmx_cfg, identifier=cmx_const.END_GROUP))
group_instr.data['bbox'] = group_instr.get_bbox()
elif obj.is_primitive:
curve = obj.to_curve()
curve.update()
if not curve:
return
elif curve.is_group:
self.make_v1_objects(parent_instr, curve)
elif curve.paths:
close_flag = False
style = curve.style
attrs = {
'style_flags': 1 if style[0] else 0,
'fill_type': cmx_const.INSTR_FILL_EMPTY,
}
attrs['style_flags'] += 2 if style[1] else 0
if style[0] and style[0][1] == sk2const.FILL_SOLID:
attrs['fill_type'] = cmx_const.INSTR_FILL_UNIFORM
attrs['fill'] = (self._add_color(style[0][2]), 1)
close_flag = not style[0][0] & sk2const.FILL_CLOSED_ONLY
if style[1]:
outline = style[1]
if curve.stroke_trafo:
points = [[0.0, 0.0], [1.0, 0.0]]
points = libgeom.apply_trafo_to_points(
points, obj.stroke_trafo)
coef = libgeom.distance(*points)
outline = deepcopy(outline)
outline[1] *= coef
attrs['outline'] = self._add_outline(outline)
trafo = libgeom.multiply_trafo(
curve.trafo, [self.coef, 0.0, 0.0, self.coef, 0.0, 0.0])
paths = libgeom.apply_trafo_to_paths(curve.paths, trafo)
attrs['points'] = []
attrs['nodes'] = []
for path in paths:
# Force path closing
if close_flag and not path[2] == sk2const.CURVE_CLOSED:
path = deepcopy(path)
path[2] = sk2const.CURVE_CLOSED
p = path[1][-1] if len(path[1][-1]) == 2 \
else path[1][-1][-1]
if not path[0] == p:
path[1].append([] + path[0])
x, y = path[0]
attrs['points'].append((int(x), int(y)))
node = cmx_const.NODE_MOVE + cmx_const.NODE_USER
if path[2] == sk2const.CURVE_CLOSED:
node += cmx_const.NODE_CLOSED
attrs['nodes'].append(node)
for point in path[1]:
if len(point) == 2:
x, y = point
attrs['points'].append((int(x), int(y)))
node = cmx_const.NODE_LINE + cmx_const.NODE_USER
attrs['nodes'].append(node)
else:
p0, p1, p2, flag = point
for item in (p0, p1, p2):
x, y = item
attrs['points'].append((int(x), int(y)))
node = cmx_const.NODE_ARC
attrs['nodes'].append(node)
attrs['nodes'].append(node)
node = cmx_const.NODE_CURVE + cmx_const.NODE_USER
attrs['nodes'].append(node)
if path[2] == sk2const.CURVE_CLOSED:
attrs['nodes'][-1] += cmx_const.NODE_CLOSED
attrs['bbox'] = self._make_bbox(curve.cache_bbox)
attrs['tail'] = ''
curve_instr = mkinstr(self.cmx_cfg,
identifier=cmx_const.POLYCURVE,
**attrs)
parent_instr.add(curve_instr)
def _get_win_vector(self, style):
vector = style[0][2][1]
vector = libgeom.apply_trafo_to_points(vector, self.target.fill_trafo)
p0 = self.canvas.point_doc_to_win(vector[0])
p1 = self.canvas.point_doc_to_win(vector[1])
return p0, p1
def get_line_points(self): return libgeom.apply_trafo_to_points(self.cache_line_points, self.trafo)
def set_sk2_style(sk1_style, dest_obj=None):
sk2_style = [[], [], [], []]
line_pattern = sk1_style.line_pattern
fill_pattern = sk1_style.fill_pattern
if not line_pattern.is_Empty:
sk2_line = [
sk2const.STROKE_MIDDLE, sk1_style.line_width,
get_sk2_color(line_pattern.color),
list(sk1_style.line_dashes), SK2_LINE_CAP[sk1_style.line_cap],
SK2_LINE_JOIN[sk1_style.line_join], 10.0, 0, 0, []
]
sk2_style[1] = sk2_line
if fill_pattern.is_Solid:
sk2_fill = []
if fill_pattern.is_Solid:
sk2_fill = [
sk2const.FILL_EVENODD, sk2const.FILL_SOLID,
get_sk2_color(fill_pattern.color)
]
sk2_style[0] = sk2_fill
elif fill_pattern.is_AxialGradient:
stops = get_sk2_stops(fill_pattern.gradient.colors)
point = [fill_pattern.direction.x, fill_pattern.direction.y]
angle = libgeom.get_point_angle(point, [0.0, 0.0])
points = [[0.0, 0.0], [1.0, 0.0], [1.0, 1.0], [0.0, 1.0]]
m21 = math.sin(-angle)
m11 = m22 = math.cos(-angle)
m12 = -m21
dx = 0.5 - m11 * 0.5 + m21 * 0.5
dy = 0.5 - m21 * 0.5 - m11 * 0.5
trafo = [m11, m21, m12, m22, dx, dy]
points = libgeom.apply_trafo_to_points(points, trafo)
bbox = libgeom.bbox_for_points(points)
w, h = libgeom.bbox_size(bbox)
vector = [[bbox[0], 0.5], [bbox[2], 0.5]]
invtrafo = libgeom.invert_trafo(trafo)
vector = libgeom.apply_trafo_to_points(vector, invtrafo)
dest_obj.update()
bbox = dest_obj.cache_bbox
w, h = libgeom.bbox_size(bbox)
trafo = [w, 0.0, 0.0, h, bbox[0], bbox[1]]
vector = libgeom.apply_trafo_to_points(vector, trafo)
sk2_fill = [
sk2const.FILL_EVENODD, sk2const.FILL_GRADIENT,
[sk2const.GRADIENT_LINEAR, vector, stops]
]
sk2_style[0] = sk2_fill
dest_obj.fill_trafo = [] + sk2const.NORMAL_TRAFO
elif fill_pattern.is_RadialGradient or fill_pattern.is_ConicalGradient:
stops = get_sk2_stops(fill_pattern.gradient.colors)
dest_obj.update()
bbox = dest_obj.cache_bbox
cg = [fill_pattern.center.x, fill_pattern.center.y]
w, h = libgeom.bbox_size(bbox)
start_point = [bbox[0] + w * cg[0], bbox[1] + h * cg[1]]
points = libgeom.bbox_points(bbox)
r = 0
for point in points:
dist = libgeom.distance(point, start_point)
r = max(r, dist)
end_point = [start_point[0] + r, start_point[1]]
sk2_fill = [
sk2const.FILL_EVENODD, sk2const.FILL_GRADIENT,
[sk2const.GRADIENT_RADIAL, [start_point, end_point], stops]
]
sk2_style[0] = sk2_fill
dest_obj.fill_trafo = [] + sk2const.NORMAL_TRAFO
dest_obj.style = sk2_style
