def path(self):
if not self._pang_ctx:
self._pre_render()
# here we create a new cairo.Context in order to hold the pathdata
tempCairoContext = cairo.Context(cairo.RecordingSurface(cairo.CONTENT_ALPHA, None))
if GI:
tempCairoContext = _UNSAFE_cairocffi_context_to_pycairo(tempCairoContext)
tempCairoContext.move_to(self.x, self.y - self.baseline)
# in here we create a pangoCairoContext in order to display layout on it
# supposedly showlayout should work, but it fills the path instead,
# therefore we use layout_path instead to render the layout to pangoCairoContext
# tempCairoContext.show_layout(self.layout)
PangoCairo.layout_path(tempCairoContext, self.layout)
# here we extract the path from the temporal cairo.Context we used to draw on the previous step
pathdata = tempCairoContext.copy_path()
# creates a BezierPath instance for storing new shoebot path
p = BezierPath(self._bot)
# parsing of cairo path to build a shoebot path
for item in pathdata:
cmd = item[0]
args = item[1]
if cmd == PATH_MOVE_TO:
p.moveto(*args)
elif cmd == PATH_LINE_TO:
p.lineto(*args)
elif cmd == PATH_CURVE_TO:
p.curveto(*args)
elif cmd == PATH_CLOSE_PATH:
p.closepath()
# cairo function for freeing path memory
return p
def _render(self, ctx=None):
if not self._doRender:
return
ctx = ctx or self._get_context()
if GI:
ctx = _UNSAFE_cairocffi_context_to_pycairo(ctx)
# we build a PangoCairo context linked to cairo context
# then we create a pango layout
# we update the context as we already used a null one on the pre-rendering
# supposedly there should not be a big performance penalty
self._pang_ctx = PangoCairo.create_context(ctx)
if self._fillcolor is not None:
# Go to initial point (CORNER or CENTER):
transform = self._call_transform_mode(self._transform)
if GI:
transform = pycairo.Matrix(*transform.as_tuple())
ctx.set_matrix(transform)
ctx.translate(self.x, self.y - self.baseline)
if self._outline is False:
ctx.set_source_rgba(*self._fillcolor)
PangoCairo.show_layout(ctx, self.layout)
PangoCairo.update_layout(ctx, self.layout)
def _pre_render(self):
# we use a new CairoContext to pre render the text
rs = cairo.RecordingSurface(cairo.CONTENT_ALPHA, None)
cr = cairo.Context(rs)
if GI:
cr = _UNSAFE_cairocffi_context_to_pycairo(cr)
self._pang_ctx = PangoCairo.create_context(cr)
self.layout = PangoCairo.create_layout(cr)
# layout line spacing
# TODO: the behaviour is not the same as nodebox yet
# self.layout.set_spacing(int(((self._lineheight-1)*self._fontsize)*Pango.SCALE)) #pango requires an int casting
# we pass pango font description and the text to the pango layout
self.layout.set_font_description(self._fontface)
self.layout.set_text(self.text, -1)
# check if max text width is set and pass it to pango layout
# text will wrap, meanwhile it checks if and indent has to be applied
# indent is subordinated to width because it makes no sense on a single-line text block
if self.width:
self.layout.set_width(int(self.width) * Pango.SCALE)
if self._indent:
self.layout.set_indent(self._indent * Pango.SCALE)
# set text alignment
if self._align == "right":
self.layout.set_alignment(Pango.Alignment.RIGHT)
elif self._align == "center":
self.layout.set_alignment(Pango.Alignment.CENTER)
elif self._align == "justify":
self.layout.set_alignment(Pango.Alignment.LEFT)
self.layout.set_justify(True)
else:
self.layout.set_alignment(Pango.Alignment.LEFT)
def path(self):
if not self._pang_ctx:
self._pre_render()
# here we create a new cairo.Context in order to hold the pathdata
tempCairoContext = cairo.Context(cairo.RecordingSurface(cairo.CONTENT_ALPHA, None))
if GI:
tempCairoContext = _UNSAFE_cairocffi_context_to_pycairo(tempCairoContext)
tempCairoContext.move_to(self.x,self.y-self.baseline)
# in here we create a pangoCairoContext in order to display layout on it
# supposedly showlayout should work, but it fills the path instead,
# therefore we use layout_path instead to render the layout to pangoCairoContext
#tempCairoContext.show_layout(self.layout)
PangoCairo.layout_path(tempCairoContext, self.layout)
#here we extract the path from the temporal cairo.Context we used to draw on the previous step
pathdata = tempCairoContext.copy_path()
# creates a BezierPath instance for storing new shoebot path
p = BezierPath(self._bot)
# parsing of cairo path to build a shoebot path
for item in pathdata:
cmd = item[0]
args = item[1]
if cmd == PATH_MOVE_TO:
p.moveto(*args)
elif cmd == PATH_LINE_TO:
p.lineto(*args)
elif cmd == PATH_CURVE_TO:
p.curveto(*args)
elif cmd == PATH_CLOSE_PATH:
p.closepath()
# cairo function for freeing path memory
return p
def _render(self, ctx=None):
if not self._doRender:
return
ctx = ctx or self._get_context()
if GI:
ctx = _UNSAFE_cairocffi_context_to_pycairo(ctx)
# we build a PangoCairo context linked to cairo context
# then we create a pango layout
# we update the context as we already used a null one on the pre-rendering
# supposedly there should not be a big performance penalty
self._pang_ctx = PangoCairo.create_context(ctx)
if self._fillcolor is not None:
# Go to initial point (CORNER or CENTER):
transform = self._call_transform_mode(self._transform)
if GI:
transform = pycairo.Matrix(*transform.as_tuple())
ctx.set_matrix(transform)
ctx.translate(self.x, self.y-self.baseline)
if self._outline is False:
ctx.set_source_rgba(*self._fillcolor)
PangoCairo.show_layout(ctx, self.layout)
PangoCairo.update_layout(ctx, self.layout)
def _pre_render(self):
#we use a new CairoContext to pre render the text
rs = cairo.RecordingSurface(cairo.CONTENT_ALPHA, None)
cr = cairo.Context(rs)
if GI:
cr = _UNSAFE_cairocffi_context_to_pycairo(cr)
self._pang_ctx = PangoCairo.create_context(cr)
self.layout = PangoCairo.create_layout(cr)
# layout line spacing
# TODO: the behaviour is not the same as nodebox yet
## self.layout.set_spacing(int(((self._lineheight-1)*self._fontsize)*Pango.SCALE)) #pango requires an int casting
# we pass pango font description and the text to the pango layout
self.layout.set_font_description(self._fontface)
self.layout.set_text(self.text, -1)
# check if max text width is set and pass it to pango layout
# text will wrap, meanwhile it checks if and indent has to be applied
# indent is subordinated to width because it makes no sense on a single-line text block
if self.width:
self.layout.set_width(int(self.width)*Pango.SCALE)
if self._indent:
self.layout.set_indent(self._indent*Pango.SCALE)
# set text alignment
if self._align == "right":
self.layout.set_alignment(Pango.Alignment.RIGHT)
elif self._align == "center":
self.layout.set_alignment(Pango.Alignment.CENTER)
elif self._align == "justify":
self.layout.set_alignment(Pango.Alignment.LEFT)
self.layout.set_justify(True)
else:
self.layout.set_alignment(Pango.Alignment.LEFT)
