def RedrawMethod(self, region=None): # draw the document if self.move_window_count >= 2: self.clear_window(update=0) self.move_window_count = 0 region = self.do_clear(region) tkwin = self.tkwin if region: x, y, w, h = region.ClipBox() if x < 0: w = w - x; x = 0 if y < 0: h = h - y; y = 0 if w > tkwin.width: w = tkwin.width if h > tkwin.height: h = tkwin.height else: x = y = 0 w = tkwin.width h = tkwin.height p1 = self.WinToDoc(x - 1, y - 1) p2 = self.WinToDoc(x + w + 1, y + h + 1) rect = Rect(p1, p2) self.renderer.draw(self.document, rect) return region
def FitPageToWindow(self, save_viewport=1): self.begin_transaction() try: w, h = self.document.PageSize() self.zoom_fit_rect(Rect(0, 0, w, h), save_viewport=save_viewport) finally: self.end_transaction()
def coord_rect(points):
p, t = points[0]
x1 = x2 = p.x
y1 = y2 = p.y
for i in range(1, len(points)):
p, t = points[i]
x1 = min(x1, p.x)
x2 = max(x2, p.x)
y1 = min(y1, p.y)
y2 = max(y2, p.y)
return Rect(x1, y1, x2, y2)
def update_rects(self):
trafo = self.trafo
start = trafo.offset()
# On some systems, atan2 can raise a ValueError if both
# parameters are 0. In that case, the actual value the of angle
# is not important since in the computation of p below, the
# coordinate depending on the angle will always be 0 because
# both trafo coefficients are 0. So set the angle to 0 in case
# of an exception.
try:
phi1 = atan2(trafo.m12, trafo.m11)
except ValueError:
phi1 = 0
try:
phi2 = atan2(trafo.m22, trafo.m21)
except ValueError:
phi2 = 0
p = Point(trafo.m11 * cos(phi1) + trafo.m12 * sin(phi1),
trafo.m21 * cos(phi2) + trafo.m22 * sin(phi2))
self.coord_rect = r = Rect(start + p, start - p)
if self.properties.HasLine():
width = self.properties.line_width
r = r.grown(width / 2 + 1)
# add the bounding boxes of arrows
if self.arc_type == ArcArc:
pi2 = pi / 2
arrow1 = self.properties.line_arrow1
if arrow1 is not None:
pos = trafo(Polar(1, self.start_angle))
dir = trafo.DTransform(Polar(1, self.start_angle - pi2))
r = UnionRects(r, arrow1.BoundingRect(pos, dir, width))
arrow2 = self.properties.line_arrow2
if arrow2 is not None:
pos = trafo(Polar(1, self.end_angle))
dir = trafo.DTransform(Polar(1, self.end_angle + pi2))
r = UnionRects(r, arrow2.BoundingRect(pos, dir, width))
self.bounding_rect = r
def update_rects(self):
width, height = self.data.Size()
rect = self.trafo(Rect(0, 0, width, height))
self.coord_rect = rect
self.bounding_rect = rect.grown(2)
def update_rectangle(self, same_center=1):
if self:
self.rect = TrafoRectangle(self.coord_rect, self.center)
else:
self.rect = TrafoRectangle(Rect(0, 0, 0, 0))
def update_rectangle(self):
if self:
self.rect = SizeRectangle(self.coord_rect, self.anchor)
else:
self.rect = SizeRectangle(Rect(0, 0, 0, 0))
def update_rects(self):
self.coord_rect = Rect(self.start, self.end)
self.bounding_rect = self.coord_rect