def update_example(self, widget=None):
start = 0
end = len(self.example)
attributes = pango.AttrList()
attributes.insert(pango.AttrForeground(self.text_color.red, self.text_color.green,
self.text_color.blue, start, end))
attributes.insert(pango.AttrBackground(self.highlight_color.red,
self.highlight_color.green,
self.highlight_color.blue,
start, end))
# Bold verification
if self.bold_tg_button.get_active():
attributes.insert(pango.AttrWeight(pango.WEIGHT_HEAVY, start, end))
else:
attributes.insert(pango.AttrWeight(pango.WEIGHT_NORMAL, start, end))
# Italic verification
if self.italic_tg_button.get_active():
attributes.insert(pango.AttrStyle(pango.STYLE_ITALIC, start, end))
else:
attributes.insert(pango.AttrStyle(pango.STYLE_NORMAL, start, end))
# Underline verification
if self.underline_tg_button.get_active():
attributes.insert(pango.AttrUnderline(pango.UNDERLINE_SINGLE, start, end))
else:
attributes.insert(pango.AttrUnderline(pango.UNDERLINE_NONE, start, end))
self.example_label.set_attributes(attributes)
def create_attribute(self, attribute, start, end):
if attribute == 'bold':
return pango.AttrWeight(pango.WEIGHT_BOLD, start, end)
elif attribute == 'italic':
return pango.AttrStyle(pango.STYLE_ITALIC, start, end)
elif attribute == 'underline':
return pango.AttrUnderline(pango.UNDERLINE_SINGLE, start, end)
def __init__(self, attrs, unistr):
super(PangoAttrList, self).__init__()
if attrs == None:
return
offsets = []
offset = 0
for c in unistr:
offsets.append(offset)
offset += len(c.encode("utf8"))
offsets.append(offset)
for attr in attrs:
pango_attr = None
start_index = attr.start_index if attr.start_index >= 0 else 0
end_index = attr.end_index if attr.end_index >= 0 else 0
start_index = offsets[start_index] if start_index < len(
offsets) else offsets[-1]
end_index = offsets[end_index] if end_index < len(
offsets) else offsets[-1]
if attr.type == ibus.ATTR_TYPE_FOREGROUND:
r = (attr.value & 0x00ff0000) >> 8
g = (attr.value & 0x0000ff00)
b = (attr.value & 0x000000ff) << 8
pango_attr = pango.AttrForeground(r, g, b, start_index,
end_index)
elif attr.type == ibus.ATTR_TYPE_BACKGROUND:
r = (attr.value & 0x00ff0000) >> 8
g = (attr.value & 0x0000ff00)
b = (attr.value & 0x000000ff) << 8
pango_attr = pango.AttrBackground(r, g, b, start_index,
end_index)
elif attr.type == ibus.ATTR_TYPE_UNDERLINE:
pango_attr = pango.AttrUnderline(int(attr.value), start_index,
end_index)
if pango_attr != None:
self.insert(pango_attr)
def add_pango_attributes(self, attrs, start_index, end_index):
"""Insert attributes for this StyleSpec into a pango.AttrList. Not every
property of StyleSpec maps into a pango.Attribute - the ones that don't
map are ignored and need to be handled separately.
@param attrs: pango.AttrList to insert attributes into.
@param start_index: byte offset of the start of the range this spec applies to
@param end_index: byte offset of the ned of the range this spec applies to
"""
if self.family is not None:
attrs.insert(pango.AttrFamily(self.family, start_index, end_index))
if self.foreground is not None:
color = pango.Color(self.foreground)
attrs.insert(
pango.AttrForeground(color.red, color.green, color.blue,
start_index, end_index))
if self.style is not None:
attrs.insert(pango.AttrStyle(self.style, start_index, end_index))
if self.underline is not None:
attrs.insert(
pango.AttrUnderline(self.underline, start_index, end_index))
if self.weight is not None:
attrs.insert(pango.AttrWeight(self.weight, start_index, end_index))
if self.weight is not None:
attrs.insert(pango.AttrWeight(self.weight, start_index, end_index))
def _draw(self, xrandr, cr):
cfg = xrandr.configuration
state = xrandr.state
cr.set_source_rgb(0.25, 0.25, 0.25)
cr.rectangle(0, 0, *state.virtual.max)
cr.fill()
cr.set_source_rgb(0.5, 0.5, 0.5)
cr.rectangle(0, 0, *cfg.virtual)
cr.fill()
for on in self.sequence:
o = cfg.outputs[on]
if not o.active: continue
rect = (o.tentative_position if hasattr(o, 'tentative_position')
else o.position) + tuple(o.size)
center = rect[0] + rect[2] / 2, rect[1] + rect[3] / 2
# paint rectangle
cr.set_source_rgba(1, 1, 1, 0.7)
cr.rectangle(*rect)
cr.fill()
cr.set_source_rgb(0, 0, 0)
cr.rectangle(*rect)
cr.stroke()
# set up for text
cr.save()
textwidth = rect[3 if o.rotation.is_odd else 2]
widthperchar = textwidth / len(on)
textheight = int(
widthperchar * 0.8
) # i think this looks nice and won't overflow even for wide fonts
newdescr = pango.FontDescription("sans")
newdescr.set_size(textheight * pango.SCALE)
# create text
layout = cr.create_layout()
layout.set_font_description(newdescr)
if o.primary:
attrs = pango.AttrList()
attrs.insert(
pango.AttrUnderline(pango.UNDERLINE_SINGLE, end_index=-1))
layout.set_attributes(attrs)
layout.set_text(on)
# position text
layoutsize = layout.get_pixel_size()
layoutoffset = -layoutsize[0] / 2, -layoutsize[1] / 2
cr.move_to(*center)
cr.rotate(o.rotation.angle)
cr.rel_move_to(*layoutoffset)
# pain text
cr.show_layout(layout)
cr.restore()
def setup_default_tags(self):
self.italics = self.get_tags_from_attrs(None, None,
[pango.AttrStyle('italic')])[0]
self.bold = self.get_tags_from_attrs(None, None,
[pango.AttrWeight('bold')])[0]
self.underline = self.get_tags_from_attrs(
None, None, [pango.AttrUnderline('single')])[0]
def create_attribute(self, attribute, start, end, value):
if attribute == 'bold':
return pango.AttrWeight(value, start, end)
elif attribute == 'italic':
return pango.AttrStyle(value, start, end)
elif attribute == 'underline':
return pango.AttrUnderline(value, start, end)
def load(self, node):
self.index = int(node.getAttribute("cursor"))
if node.hasAttribute("selection_end"):
self.end_index = int(node.getAttribute("selection_end"))
else:
self.end_index = self.index
tmp = node.getAttribute("ul-coords")
self.ul = utils.parse_coords(tmp)
tmp = node.getAttribute("lr-coords")
self.lr = utils.parse_coords(tmp)
self.identity = int(node.getAttribute("identity"))
try:
tmp = node.getAttribute("background-color")
self.background_color = gtk.gdk.color_parse(tmp)
tmp = node.getAttribute("foreground-color")
self.foreground_color = gtk.gdk.color_parse(tmp)
except ValueError:
pass
if node.hasAttribute("edit"):
self.editing = True
else:
self.editing = False
self.end_index = self.index
self.am_selected = node.hasAttribute("current_root")
self.am_primary = node.hasAttribute("primary_root")
for n in node.childNodes:
if n.nodeType == n.TEXT_NODE:
self.text = n.data
elif n.nodeName == "Extended":
self.extended_buffer.load(n)
elif n.nodeName == "attribute":
attrType = n.getAttribute("type")
start = int(n.getAttribute("start"))
end = int(n.getAttribute("end"))
if attrType == "bold":
attr = pango.AttrWeight(pango.WEIGHT_BOLD, start, end)
elif attrType == "italics":
attr = pango.AttrStyle(pango.STYLE_ITALIC, start, end)
elif attrType == "underline":
attr = pango.AttrUnderline(pango.UNDERLINE_SINGLE, start,
end)
elif attrType == "font":
font_name = str(n.getAttribute("value"))
pango_font = pango.FontDescription(font_name)
attr = pango.AttrFontDesc(pango_font, start, end)
self.attributes.change(attr)
else:
print "Unknown: " + n.nodeName
self.rebuild_byte_table()
self.recalc_edges()
def _createLayout(self, text):
"""Produces a Pango layout describing this text in this __font"""
# create layout
layout = pango.Layout(gtk.gdk.pango_context_get())
layout.set_font_description(self.fd)
if self.underline:
attrs = layout.get_attributes()
if not attrs:
attrs = pango.AttrList()
attrs.insert(pango.AttrUnderline(pango.UNDERLINE_SINGLE, 0, 32767))
layout.set_attributes(attrs)
layout.set_text(text)
return layout
def set_font(self, pango_layout):
"""Sets the font for draw_text"""
wx2pango_weights = {
wx.FONTWEIGHT_BOLD: pango.WEIGHT_BOLD,
wx.FONTWEIGHT_LIGHT: pango.WEIGHT_LIGHT,
wx.FONTWEIGHT_NORMAL: None, # Do not set a weight by default
}
wx2pango_styles = {
wx.FONTSTYLE_NORMAL: None, # Do not set a style by default
wx.FONTSTYLE_SLANT: pango.STYLE_OBLIQUE,
wx.FONTSTYLE_ITALIC: pango.STYLE_ITALIC,
}
cell_attributes = self.code_array.cell_attributes[self.key]
# Text font attributes
textfont = cell_attributes["textfont"]
pointsize = cell_attributes["pointsize"]
fontweight = cell_attributes["fontweight"]
fontstyle = cell_attributes["fontstyle"]
underline = cell_attributes["underline"]
strikethrough = cell_attributes["strikethrough"]
# Now construct the pango font
font_description = pango.FontDescription(" ".join(
[textfont, str(pointsize)]))
pango_layout.set_font_description(font_description)
attrs = pango.AttrList()
# Underline
attrs.insert(pango.AttrUnderline(underline, 0, MAX_RESULT_LENGTH))
# Weight
weight = wx2pango_weights[fontweight]
if weight is not None:
attrs.insert(pango.AttrWeight(weight, 0, MAX_RESULT_LENGTH))
# Style
style = wx2pango_styles[fontstyle]
if style is not None:
attrs.insert(pango.AttrStyle(style, 0, MAX_RESULT_LENGTH))
# Strikethrough
attrs.insert(
pango.AttrStrikethrough(strikethrough, 0, MAX_RESULT_LENGTH))
pango_layout.set_attributes(attrs)
def draw(self, context):
cr = context.cairo
if isinstance(cr, cairo.Context):
cr = pangocairo.CairoContext(cr)
layout = cr.create_layout()
layout.set_font_description(pango.FontDescription(self.font))
layout.set_text(self.render() or '')
if hasattr(self.subject, 'isStatic') and self.subject.isStatic:
attrlist = pango.AttrList()
attrlist.insert(
pango.AttrUnderline(pango.UNDERLINE_SINGLE, 2, -1))
layout.set_attributes(attrlist)
cr.show_layout(layout)
def _set_underline(self, label, underline=False):
# Set an underline in a label widget.
att_list = label.get_attributes()
if att_list is None:
att_list = pango.AttrList()
if underline:
att_list.insert(pango.AttrUnderline(pango.UNDERLINE_SINGLE,
start_index=0,
end_index=-1))
else:
att_list = att_list.filter(lambda a:
a.type != pango.ATTR_UNDERLINE)
if att_list is None:
att_list = pango.AttrList()
label.set_attributes(att_list)
def on_timeout_min(self):
attr = self.label.get_attributes()
attr.change(pango.AttrUnderline(pango.UNDERLINE_NONE, 0, -1))
self.label.set_attributes(attr)
def add_text(self, buddy, text, status_message=False):
"""Display text on screen, with name and colors.
buddy -- buddy object or dict {nick: string, color: string}
(The dict is for loading the chat log from the journal,
when we don't have the buddy object any more.)
text -- string, what the buddy said
status_message -- boolean
False: show what buddy said
True: show what buddy did
hippo layout:
.------------- rb ---------------.
| +name_vbox+ +----msg_vbox----+ |
| | | | | |
| | nick: | | +--msg_hbox--+ | |
| | | | | text | | |
| +---------+ | +------------+ | |
| | | |
| | +--msg_hbox--+ | |
| | | text | url | | |
| | +------------+ | |
| +----------------+ |
`--------------------------------'
"""
if not buddy:
buddy = self.owner
if type(buddy) is dict:
# dict required for loading chat log from journal
nick = buddy['nick']
color = buddy['color']
else:
nick = buddy.props.nick
color = buddy.props.color
try:
color_stroke_html, color_fill_html = color.split(',')
except ValueError:
color_stroke_html, color_fill_html = ('#000000', '#888888')
# Select text color based on fill color:
color_fill_rgba = Color(color_fill_html).get_rgba()
color_fill_gray = (color_fill_rgba[0] + color_fill_rgba[1] +
color_fill_rgba[2]) / 3
color_stroke = Color(color_stroke_html).get_int()
color_fill = Color(color_fill_html).get_int()
if color_fill_gray < 0.5:
text_color = COLOR_WHITE.get_int()
else:
text_color = COLOR_BLACK.get_int()
self._add_log(nick, color, text, status_message)
# Check for Right-To-Left languages:
if pango.find_base_dir(nick, -1) == pango.DIRECTION_RTL:
lang_rtl = True
else:
lang_rtl = False
# Check if new message box or add text to previous:
new_msg = True
if self._last_msg_sender:
if not status_message:
if buddy == self._last_msg_sender:
# Add text to previous message
new_msg = False
if not new_msg:
rb = self._last_msg
msg_vbox = rb.get_children()[1]
msg_hbox = hippo.CanvasBox(
orientation=hippo.ORIENTATION_HORIZONTAL)
msg_vbox.append(msg_hbox)
else:
rb = CanvasRoundBox(background_color=color_fill,
border_color=color_stroke,
padding=4)
rb.props.border_color = color_stroke # Bug #3742
self._last_msg = rb
self._last_msg_sender = buddy
if not status_message:
name = hippo.CanvasText(text=nick + ': ', color=text_color)
name_vbox = hippo.CanvasBox(
orientation=hippo.ORIENTATION_VERTICAL)
name_vbox.append(name)
rb.append(name_vbox)
msg_vbox = hippo.CanvasBox(orientation=hippo.ORIENTATION_VERTICAL)
rb.append(msg_vbox)
msg_hbox = hippo.CanvasBox(
orientation=hippo.ORIENTATION_HORIZONTAL)
msg_vbox.append(msg_hbox)
if status_message:
self._last_msg_sender = None
match = URL_REGEXP.search(text)
while match:
# there is a URL in the text
starttext = text[:match.start()]
if starttext:
message = hippo.CanvasText(
text=starttext,
size_mode=hippo.CANVAS_SIZE_WRAP_WORD,
color=text_color,
xalign=hippo.ALIGNMENT_START)
msg_hbox.append(message)
url = text[match.start():match.end()]
message = CanvasLink(text=url, color=text_color)
attrs = pango.AttrList()
attrs.insert(pango.AttrUnderline(pango.UNDERLINE_SINGLE, 0, 32767))
message.set_property("attributes", attrs)
message.connect('activated', self._link_activated_cb)
# call interior magic which should mean just:
# CanvasInvoker().parent = message
CanvasInvoker(message)
msg_hbox.append(message)
text = text[match.end():]
match = URL_REGEXP.search(text)
if text:
message = hippo.CanvasText(text=text,
size_mode=hippo.CANVAS_SIZE_WRAP_WORD,
color=text_color,
xalign=hippo.ALIGNMENT_START)
msg_hbox.append(message)
# Order of boxes for RTL languages:
if lang_rtl:
msg_hbox.reverse()
if new_msg:
rb.reverse()
if new_msg:
box = hippo.CanvasBox(padding=2)
box.append(rb)
self._conversation.append(box)
def __expose_event(self, widget, event=None):
"""Handle drawing bread crumbs"""
foreground_context = widget.get_style().fg_gc[self._state]
background_context = widget.window.cairo_create()
layout = widget.create_pango_layout('')
text_to_draw = self._path
path_length = len(self._path)
# make sure we have allocation
if self._allocation is None:
self._allocation = widget.get_allocation()
# create attributes
attributes = pango.AttrList()
# check if path is part of previous one
if self._type is Breadcrumbs.TYPE_SMART \
and self._previous_path is not None \
and self._previous_path.startswith(self._path):
smart_color = (self._smart_color.red, self._smart_color.green,
self._smart_color.blue)
attributes.insert(
pango.AttrForeground(*smart_color,
start_index=path_length,
end_index=len(self._previous_path)))
text_to_draw = self._previous_path
# calculate width of path elements
if self._elements_width is None:
path = None
provider = self._parent._parent.get_provider()
self._elements_size = []
self._elements_width = []
# split root element from others
root_element = provider.get_root_path(text_to_draw)
other_elements = text_to_draw[len(root_element):]
# make sure our path doesn't begin with slash
if other_elements.startswith(os.path.sep):
other_elements = other_elements[1:]
# split elements
elements = other_elements.split(os.path.sep)
elements.insert(0, root_element)
for element in elements:
# get path size
path = os.path.join(path,
element) if path is not None else element
layout.set_text(path)
# add width to the list
width = layout.get_size()[0] / pango.SCALE
self._elements_size.append(len(path))
self._elements_width.append(width)
# underline hovered path if specified
if None not in (self._highlight_index, self._elements_size):
width = self._elements_size[self._highlight_index]
attributes.insert(
pango.AttrUnderline(pango.UNDERLINE_SINGLE, 0, width))
# prepare text for drawing
layout.set_text(text_to_draw)
layout.set_attributes(attributes)
# draw background color
background_context.set_source_color(self._colors[0])
background_context.rectangle(0, 0, self._allocation[2],
self._allocation[3])
background_context.fill()
# draw text
widget.window.draw_layout(foreground_context, 0, 0, layout)
return True
def get_calculated_rect(self, context, rect):
angle = 2 * math.pi * self._rotation / 360.0
if self._context == None:
label = gtk.Label()
self._context = label.create_pango_context()
pango_context = self._context
attrs = pango.AttrList()
attrs.insert(pango.AttrWeight(self._weight, 0, len(self._text)))
attrs.insert(pango.AttrStyle(self._slant, 0, len(self._text)))
attrs.insert(pango.AttrUnderline(self._underline, 0,
len(self._text)))
if self._size != None:
attrs.insert(pango.AttrSize(1000 * self._size, 0,
len(self._text)))
if self._layout == None:
self._layout = pango.Layout(pango_context)
layout = self._layout
if self._markup:
layout.set_markup(self._text)
else:
layout.set_text(self._text)
layout.set_attributes(attrs)
#find out where to draw the layout and calculate the maximum width
width = rect.width * math.cos(angle) + rect.height * math.sin(angle)
if self._anchor in [ANCHOR_BOTTOM_LEFT, ANCHOR_TOP_LEFT,
ANCHOR_LEFT_CENTER]:
width = rect.width - self._position[0]
elif self._anchor in [ANCHOR_BOTTOM_RIGHT, ANCHOR_TOP_RIGHT,
ANCHOR_RIGHT_CENTER]:
width = self._position[0]
text_width, text_height = layout.get_pixel_size()
width = min(width, self._max_width)
if self._wrap:
layout.set_wrap(pango.WRAP_WORD_CHAR)
layout.set_width(int(1000 * width))
#======================================================================
text_width, text_height = layout.get_pixel_size()
anchor = self._anchor
x, y = self._position
#anchor translation
tx, ty = 0, 0
ttx, tty = 0, 0
if anchor == ANCHOR_BOTTOM_LEFT:
tx = text_height * math.sin(angle)
ty = text_height * math.cos(angle)
ttx = 0
tty = text_height
elif anchor == ANCHOR_TOP_LEFT:
tx = 0
ty = 0
elif anchor == ANCHOR_TOP_RIGHT:
tx = text_width * math.cos(angle)
ty = -text_width * math.sin(angle)
ttx = text_width
tty = 0
elif anchor == ANCHOR_BOTTOM_RIGHT:
tx = text_width * math.cos(angle) + text_height * math.sin(angle)
ty = -text_width * math.sin(angle) + text_height * math.cos(angle)
ttx = text_width
tty = text_height
elif anchor == ANCHOR_CENTER:
tx = (text_width * math.cos(angle) + text_height * math.sin(angle)) / 2
ty = (-text_width * math.sin(angle) + text_height * math.cos(angle)) / 2
ttx = text_width / 2
tty = text_height / 2
elif anchor == ANCHOR_TOP_CENTER:
tx = text_width * math.cos(angle) / 2
ty = -text_width * math.sin(angle) / 2
ttx = text_width / 2
tty = 0
elif anchor == ANCHOR_BOTTOM_CENTER:
tx = text_width * math.cos(angle) / 2 + text_height * math.sin(angle)
ty = -text_width * math.sin(angle) / 2 + text_height * math.cos(angle)
ttx = text_width / 2
tty = text_height
elif anchor == ANCHOR_LEFT_CENTER:
tx = text_height * math.sin(angle) / 2
ty = text_height * math.cos(angle) / 2
ttx = 0
tty = text_height / 2
elif anchor == ANCHOR_RIGHT_CENTER:
tx = text_width * math.cos(angle) + text_height * math.sin(angle) / 2
ty = -text_width * math.sin(angle) + text_height * math.cos(angle) / 2
ttx = text_width
tty = text_height / 2
#calculate the bounding rect
real_x = x - ttx
real_y = y - tty
top_left = real_x, real_y
bottom_left = real_x , real_y + text_height
bottom_right = real_x + text_width, real_y + text_height
top_right = real_x + text_width, real_y
offset = x, y
n_top_left = rotate_vector(offset, top_left, angle)
n_bottom_left = rotate_vector(offset, bottom_left, angle)
n_bottom_right = rotate_vector(offset, bottom_right, angle)
n_top_right = rotate_vector(offset, top_right, angle)
alloc_x_min = int(min(n_top_left[0], n_bottom_left[0], n_bottom_right[0],
n_top_right[0]))
alloc_x_max = int(max(n_top_left[0], n_bottom_left[0], n_bottom_right[0],
n_top_right[0]))
alloc_y_min = int(min(n_top_left[1], n_bottom_left[1], n_bottom_right[1],
n_top_right[1]))
alloc_y_max = int(max(n_top_left[1], n_bottom_left[1], n_bottom_right[1],
n_top_right[1]))
rect = gtk.gdk.Rectangle(alloc_x_min, alloc_y_min,
alloc_x_max - alloc_x_min,
alloc_y_max - alloc_y_min)
return rect
def get_calculated_dimensions(self, context, rect):
angle = 2 * math.pi * self._rotation / 360.0
if self._context == None:
label = gtk.Label()
self._context = label.create_pango_context()
pango_context = self._context
attrs = pango.AttrList()
attrs.insert(pango.AttrWeight(self._weight, 0, len(self._text)))
attrs.insert(pango.AttrStyle(self._slant, 0, len(self._text)))
attrs.insert(pango.AttrUnderline(self._underline, 0, len(self._text)))
if self._size != None:
attrs.insert(pango.AttrSize(1000 * self._size, 0, len(self._text)))
if self._layout == None:
self._layout = pango.Layout(pango_context)
layout = self._layout
layout.set_text(self._text)
layout.set_attributes(attrs)
#find out where to draw the layout and calculate the maximum width
width = rect.width
if self._anchor in [
ANCHOR_BOTTOM_LEFT, ANCHOR_TOP_LEFT, ANCHOR_LEFT_CENTER
]:
width = rect.width - self._position[0]
elif self._anchor in [
ANCHOR_BOTTOM_RIGHT, ANCHOR_TOP_RIGHT, ANCHOR_RIGHT_CENTER
]:
width = self._position[0]
text_width, text_height = layout.get_pixel_size()
width = width * math.cos(angle)
width = min(width, self._max_width)
if self._wrap:
layout.set_wrap(pango.WRAP_WORD_CHAR)
layout.set_width(int(1000 * width))
x, y = get_text_pos(layout, self._position, self._anchor, angle)
if not self._fixed:
#Find already drawn labels that would intersect with the current one
#and adjust position to avoid intersection.
text_width, text_height = layout.get_pixel_size()
real_width = abs(text_width * math.cos(angle)) + abs(
text_height * math.sin(angle))
real_height = abs(text_height * math.cos(angle)) + abs(
text_width * math.sin(angle))
other_labels = get_registered_labels()
this_rect = gtk.gdk.Rectangle(int(x), int(y), int(real_width),
int(real_height))
for label in other_labels:
label_rect = label.get_allocation()
intersection = this_rect.intersect(label_rect)
if intersection.width == 0 and intersection.height == 0:
continue
y_diff = 0
if label_rect.y <= y and label_rect.y + label_rect.height >= y:
y_diff = y - label_rect.y + label_rect.height
elif label_rect.y > y and label_rect.y < y + real_height:
y_diff = label_rect.y - real_height - y
y += y_diff
#calculate the dimensions
text_width, text_height = layout.get_pixel_size()
real_width = abs(text_width * math.cos(angle)) + abs(
text_height * math.sin(angle))
real_height = abs(text_height * math.cos(angle)) + abs(
text_width * math.sin(angle))
return real_width, real_height
def render(self,
text,
antialias=True,
color=(255, 255, 255),
background=None):
"""Render the font onto a new Surface and return it.
We ignore 'antialias' and use system settings.
text -- (unicode) string with the text to render
antialias -- attempt to antialias the text or not
color -- three or four-tuple of 0-255 values specifying rendering
colour for the text
background -- three or four-tuple of 0-255 values specifying rendering
colour for the background, or None for trasparent background
returns a pygame image instance
"""
log.info('render: %r, antialias = %s, color=%s, background=%s', text,
antialias, color, background)
# create layout
layout = pango.Layout(gtk.gdk.pango_context_get())
layout.set_font_description(self.fd)
if self.underline:
attrs = layout.get_attributes()
if not attrs:
attrs = pango.AttrList()
attrs.insert(pango.AttrUnderline(pango.UNDERLINE_SINGLE, 0, 32767))
layout.set_attributes(attrs)
layout.set_text(text)
# determine pixel size
(logical, ink) = layout.get_pixel_extents()
ink = pygame.rect.Rect(ink)
# Create a new Cairo ImageSurface
csrf, cctx = _cairoimage.newContext(ink.w, ink.h)
cctx = pangocairo.CairoContext(cctx)
# Mangle the colors on little-endian machines. The reason for this
# is that Cairo writes native-endian 32-bit ARGB values whereas
# Pygame expects endian-independent values in whatever format. So we
# tell our users not to expect transparency here (avoiding the A issue)
# and we swizzle all the colors around.
# render onto it
if background is not None:
background = _cairoimage.mangle_color(background)
cctx.set_source_rgba(*background)
cctx.paint()
log.debug('incoming color: %s', color)
color = _cairoimage.mangle_color(color)
log.debug(' translated color: %s', color)
cctx.new_path()
cctx.layout_path(layout)
cctx.set_source_rgba(*color)
cctx.fill()
# Create and return a new Pygame Image derived from the Cairo Surface
return _cairoimage.asImage(csrf)
def attrs_changed(self):
bold = False
italics = False
underline = False
pango_font = None
del self.attrlist
self.attrlist = pango.AttrList()
# TODO: splice instead of own method
it = self.attributes.get_iterator()
while 1:
at = it.get_attrs()
for x in at:
self.attrlist.insert(x)
if it.next() == False:
break
if self.preedit:
ins_text = self.preedit[0]
ins_style = self.preedit[1]
if self.index == len(self.text):
show_text = self.text + ins_text
elif self.index == 0:
show_text = ins_text + self.text
else:
split1 = self.text[:self.index]
split2 = self.text[self.index:]
show_text = split1 + ins_text + split2
self.attrlist.splice(ins_style, self.index, len(ins_text))
else:
show_text = self.text
it = self.attributes.get_iterator()
while (1):
found = False
r = it.range()
if self.index == self.end_index:
if r[0] <= self.index and r[1] > self.index:
found = True
elif self.index < self.end_index:
if r[0] > self.end_index:
break
if self.index == self.end_index and \
r[0] < self.index and \
r[1] > self.index:
found = True
elif self.index != self.end_index and r[0] <= self.index and \
r[1] >= self.end_index:
# We got a winner!
found = True
else:
if r[0] > self.index:
break
if self.index == self.end_index and \
r[0] < self.index and \
r[1] > self.index:
found = True
elif self.index != self.end_index and r[0] <= self.end_index and \
r[1] >= self.index:
# We got another winner!
found = True
if found:
# FIXME: the it.get() seems to crash python
# through pango.
attr = it.get_attrs()
for x in attr:
if x.type == pango.ATTR_WEIGHT and \
x.value == pango.WEIGHT_BOLD:
bold = True
elif x.type == pango.ATTR_STYLE and \
x.value == pango.STYLE_ITALIC:
italics = True
elif x.type == pango.ATTR_UNDERLINE and \
x.value == pango.UNDERLINE_SINGLE:
underline = True
elif x.type == pango.ATTR_FONT_DESC:
pango_font = x.desc
if it.next() == False:
break
to_add = []
if bold:
to_add.append(
pango.AttrWeight(pango.WEIGHT_BOLD, self.index, self.index))
if italics:
to_add.append(
pango.AttrStyle(pango.STYLE_ITALIC, self.index, self.index))
if underline:
to_add.append(
pango.AttrUnderline(pango.UNDERLINE_SINGLE, self.index,
self.index))
if pango_font:
to_add.append(
pango.AttrFontDesc(pango_font, self.index, self.index))
for x in self.current_attrs:
if x.type == pango.ATTR_WEIGHT and x.value == pango.WEIGHT_BOLD:
bold = True
to_add.append(x)
if x.type == pango.ATTR_STYLE and x.value == pango.STYLE_ITALIC:
italics = True
to_add.append(x)
if x.type == pango.ATTR_UNDERLINE and x.value == pango.UNDERLINE_SINGLE:
underline = True
to_add.append(x)
if x.type == pango.ATTR_FONT_DESC:
pango_font = x.desc
to_add.append(x)
del self.current_attrs
self.current_attrs = to_add
self.emit("update-attrs", bold, italics, underline, pango_font)
return show_text
def attrs_changed(self):
bold = False
italics = False
underline = False
pango_font = None
del self.attrlist
self.attrlist = self.attributes.copy()
if self.preedit:
ins_text = self.preedit[0]
ins_style = self.preedit[1]
if self.index == len(self.text):
show_text = self.text + ins_text
elif self.index == 0:
show_text = ins_text + self.text
else:
split1 = self.text[:self.index]
split2 = self.text[self.index:]
show_text = split1 + ins_text + split2
self.attrlist.splice(ins_style, self.index, len(ins_text))
else:
show_text = self.text
it = wrap_attriterator(self.attributes.get_iterator())
for attrs, (start, end) in it:
found = False
if self.index == self.end_index:
if start <= self.index and end > self.index:
found = True
elif self.index < self.end_index:
if start > self.end_index:
break
elif start <= self.index and \
end >= self.end_index:
# We got a winner!
found = True
else: # i.e. self.index > self.end_index
if start > self.index:
break
elif start <= self.end_index and \
end >= self.index:
# We got another winner!
found = True
if found:
for x in attrs:
if x.type == pango.ATTR_WEIGHT and \
x.value == pango.WEIGHT_BOLD:
bold = True
elif x.type == pango.ATTR_STYLE and \
x.value == pango.STYLE_ITALIC:
italics = True
elif x.type == pango.ATTR_UNDERLINE and \
x.value == pango.UNDERLINE_SINGLE:
underline = True
elif x.type == pango.ATTR_FONT_DESC:
pango_font = x.desc
to_add = []
if bold:
to_add.append(
pango.AttrWeight(pango.WEIGHT_BOLD, self.index, self.index))
if italics:
to_add.append(
pango.AttrStyle(pango.STYLE_ITALIC, self.index, self.index))
if underline:
to_add.append(
pango.AttrUnderline(pango.UNDERLINE_SINGLE, self.index,
self.index))
if pango_font:
to_add.append(
pango.AttrFontDesc(pango_font, self.index, self.index))
for x in self.current_attrs:
if x.type == pango.ATTR_WEIGHT and x.value == pango.WEIGHT_BOLD:
bold = True
to_add.append(x)
if x.type == pango.ATTR_STYLE and x.value == pango.STYLE_ITALIC:
italics = True
to_add.append(x)
if x.type == pango.ATTR_UNDERLINE and x.value == pango.UNDERLINE_SINGLE:
underline = True
to_add.append(x)
if x.type == pango.ATTR_FONT_DESC:
pango_font = x.desc
to_add.append(x)
del self.current_attrs
self.current_attrs = to_add
self.emit("update-attrs", bold, italics, underline, pango_font)
return show_text
def generate_images(opts,args):
# Set up variables for drawing space
width = 2550 # Will resize to match text; default 8.5"x11" @ 300dpi
height = 3300
MARGIN_X = 300
MARGIN_Y = 300
LINE_SPACE = 35 #TODO: Command-line opts
LANG = "ka"
TESS_LANG = "kat"
# Set up decent spacing for box files
attrs = pango.AttrList() #TODO: Command line opts or config
attrs.insert(pango.AttrLanguage(LANG,0,-1))
attrs.insert(pango.AttrLetterSpacing(10000,0,-1))
attrs.insert(pango.AttrSize(48000,0,-1))
attrs.insert(pango.AttrFallback(False,0,-1))
attrs.insert(pango.AttrStyle(pango.STYLE_NORMAL,0,-1))
attrs.insert(pango.AttrWeight(pango.WEIGHT_NORMAL,0,-1))
attrs.insert(pango.AttrUnderline(pango.UNDERLINE_NONE,0,-1))
# Instantiate Cairo surface and context
surf = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height)
context = pangocairo.CairoContext(cairo.Context(surf))
# Instantiate PangoCairo context
context.set_antialias(cairo.ANTIALIAS_SUBPIXEL)
#get font families:
font_map = pangocairo.cairo_font_map_get_default()
# to see family names:
if opts.list_fonts:
print [f.get_name() for f in font_map.list_families()]
return
# Set up pango layout
layout = context.create_layout()
layout.set_attributes(attrs)
layout.set_width((width+MARGIN_X)*pango.SCALE)
layout.set_spacing(LINE_SPACE*pango.SCALE)
#print layout.get_width()
# Read text from file TODO: Command line argument
# TODO: Multiple files print to multiple image documents
text = ''
with codecs.open(opts.input_file) as text_file:
for line in text_file:
text += line + '\n'
font_names = args
# (variant, reset,"desc")
#Font variants is an array of tuples consisting of: (AttrStyle, InverseAttrStyle, Name)
font_variants = [
(pango.AttrStyle(pango.STYLE_NORMAL,0,-1),pango.AttrStyle(pango.STYLE_NORMAL,0,-1),"")]
#Add other stylings based on command-line options
if opts.italic:
font_variants.append((pango.AttrStyle(pango.STYLE_ITALIC,0,-1),pango.AttrStyle(pango.STYLE_NORMAL,0,-1),"italic"))
if opts.bold:
font_variants.append((pango.AttrWeight(pango.WEIGHT_HEAVY,0,-1),pango.AttrWeight(pango.WEIGHT_NORMAL,0,-1),"bold"))
if opts.underline:
font_variants.append((pango.AttrUnderline(pango.UNDERLINE_SINGLE,0,-1),pango.AttrUnderline(pango.UNDERLINE_NONE,0,-1),"underline"))
#Generate pages for each font name and variation.
for fn in font_names:
for fvar in font_variants:
# Change to a new variant
attrs.change(fvar[0])
layout.set_attributes(attrs)
# Change to a new font
fontname = fn
font = pango.FontDescription(fontname + " 25")
layout.set_font_description(font)
layout.set_text(text)
(ink, logical) = layout.get_pixel_extents()
# If layout exceeds size of surface, change surface size
if logical[2] > (width-MARGIN_X) or logical[3] > (height-MARGIN_Y):
width = logical[2]+MARGIN_X
height = logical[3]+MARGIN_Y
surf = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height)
context = pangocairo.CairoContext(cairo.Context(surf))
context.update_layout(layout)
#draw a background rectangle:
context.rectangle(0,0,width,height)
context.set_source_rgb(1, 1, 1)
context.fill()
# Translate context so that desired text upperleft corner is at 0,0
context.translate(50,25)
context.set_source_rgb(0, 0, 0)
context.update_layout(layout)
context.show_layout(layout)
# Write to image
# TODO: Specify outfile on command line
#print fontname
#print fvar[2]
with open(TESS_LANG+"."+fontname+fvar[2]+".exp0.png", "wb") as image_file:
surf.write_to_png(image_file)
attrs.change(fvar[1])
layout.set_attributes(attrs)
def update_surface(self, bbox, zoom, style, callback=lambda x=None: None):
rendertimer = Timer("Rendering image")
if "image" not in style.cache:
style.cache["image"] = ImageLoader()
timer = Timer("Getting data")
self.zoom = zoom
self.bbox = bbox
self.bbox_p = projections.from4326(bbox, self.proj)
print self.bbox_p
scale = abs(self.w / (self.bbox_p[0] - self.bbox_p[2]) /
math.cos(math.pi *
(self.bbox[1] + self.bbox[3]) / 2 / 180))
zscale = 0.5 * scale
cr = cairo.Context(self.surface)
# getting and setting canvas properties
bgs = style.get_style("canvas", {}, self.zoom, scale, zscale)
if not bgs:
bgs = [{}]
bgs = bgs[0]
cr.rectangle(0, 0, self.w, self.h)
# canvas color and opcity
color = bgs.get("fill-color", (0.7, 0.7, 0.7))
cr.set_source_rgba(color[0], color[1], color[2],
bgs.get("fill-opacity", 1))
cr.fill()
callback()
# canvas antialiasing
antialias = bgs.get("antialias", "full")
if antialias == "none":
"no antialiasing enabled"
cr.set_antialias(1)
#cr.font_options_set_antialias(1)
elif antialias == "text":
"only text antialiased"
cr.set_antialias(1)
#cr.font_options_set_antialias(2)
else:
"full antialias"
cr.set_antialias(2)
#cr.font_options_set_antialias(2)
datatimer = Timer("Asking backend")
if "get_sql_hints" in dir(style):
hints = style.get_sql_hints('way', self.zoom)
else:
hints = None
if "get_interesting_tags" in dir(style):
itags = style.get_interesting_tags(zoom=self.zoom)
else:
itags = None
# enlarge bbox by 20% to each side. results in more vectors, but makes less artifaces.
span_x, span_y = bbox[2] - bbox[0], bbox[3] - bbox[1]
bbox_expand = [
bbox[0] - 0.2 * span_x, bbox[1] - 0.2 * span_y,
bbox[2] + 0.2 * span_x, bbox[3] + 0.2 * span_y
]
vectors = self.data.get_vectors(bbox_expand, self.zoom, hints,
itags).values()
datatimer.stop()
datatimer = Timer("Applying styles")
ww = []
for way in vectors:
type = "line"
if way.coords[0] == way.coords[-1]:
type == "area"
st = style.get_style("area", way.tags, self.zoom, scale, zscale)
if st:
for fpt in st:
#debug(fpt)
ww.append([way.copy(), fpt])
datatimer.stop()
debug("%s objects on screen (%s in dataset)" % (len(ww), len(vectors)))
er = Timer("Projecing data")
if self.data.proj != self.proj:
for w in ww:
w[0].cs = [
self.lonlat2screen(coord)
for coord in projections.transform(
w[0].coords, self.data.proj, self.proj)
]
else:
for w in ww:
w[0].cs = [self.lonlat2screen(coord) for coord in w[0].coords]
for w in ww:
if "offset" in w[1]:
offset = float(w[1]["offset"])
w[0] = w[0].copy()
w[0].cs = offset_line(w[0].cs, offset)
if "raise" in w[1] and not "extrude" in w[1]:
w[0] = w[0].copy()
offset = float(w[1]["raise"])
w[0].cs_real = w[0].cs
w[0].cs = [(x, y - offset) for x, y in w[0].cs]
if "extrude" in w[1]:
if w[1]["extrude"] < 2:
del w[1]["extrude"]
if "extrude" in w[1] and "fill-color" not in w[1] and "width" in w[
1]:
w[1]["fill-color"] = w[1].get("color", (0, 0, 0))
w[1]["fill-opacity"] = w[1].get("opacity", 1)
w[0] = w[0].copy()
#print w[0].cs
w[0].cs = offset_line(w[0].cs, w[1]["width"] / 2)
#print w[0].cs
aa = offset_line(w[0].cs, -w[1]["width"])
del w[1]["width"]
aa.reverse()
w[0].cs.extend(aa)
er.stop()
ww.sort(key=lambda x: x[1]["layer"])
layers = list(set([int(x[1]["layer"] / 100.) for x in ww]))
layers.sort()
objs_by_layers = {}
for layer in layers:
objs_by_layers[layer] = []
for obj in ww:
objs_by_layers[int(obj[1]["layer"] / 100.)].append(obj)
del ww
timer.stop()
timer = Timer("Rasterizing image")
linecaps = {"butt": 0, "round": 1, "square": 2}
linejoin = {"miter": 0, "round": 1, "bevel": 2}
text_rendered_at = set([(-100, -100)])
for layer in layers:
data = objs_by_layers[layer]
#data.sort(lambda x,y:cmp(max([x1[1] for x1 in x[0].cs]), max([x1[1] for x1 in y[0].cs])))
# - fill polygons
for obj in data:
if ("fill-color" in obj[1] or "fill-image" in obj[1]
) and not "extrude" in obj[1]: ## TODO: fill-image
color = obj[1].get("fill-color", (0, 0, 0))
cr.set_source_rgba(color[0], color[1], color[2],
obj[1].get("fill-opacity", 1))
if "fill-image" in obj[1]:
image = style.cache["image"][obj[1]["fill-image"]]
if image:
pattern = cairo.SurfacePattern(image)
pattern.set_extend(cairo.EXTEND_REPEAT)
cr.set_source(pattern)
poly(cr, obj[0].cs)
# - draw casings on layer
for obj in data:
### Extras: casing-linecap, casing-linejoin
if "casing-width" in obj[1] or "casing-color" in obj[
1] and "extrude" not in obj[1]:
cr.set_dash(obj[1].get("casing-dashes",
obj[1].get("dashes", [])))
cr.set_line_join(
linejoin.get(
obj[1].get("casing-linejoin",
obj[1].get("linejoin", "round")), 1))
color = obj[1].get("casing-color", (0, 0, 0))
cr.set_source_rgba(color[0], color[1], color[2],
obj[1].get("casing-opacity", 1))
## TODO: good combining of transparent lines and casing
## Probable solution: render casing, render way as mask and put casing with mask chopped out onto image
cr.set_line_width(obj[1].get("width", 0) +
obj[1].get("casing-width", 1))
cr.set_line_cap(
linecaps.get(
obj[1].get("casing-linecap",
obj[1].get("linecap", "butt")), 0))
line(cr, obj[0].cs)
# - draw line centers
for obj in data:
if ("width" in obj[1] or "color" in obj[1]
or "image" in obj[1]) and "extrude" not in obj[1]:
cr.set_dash(obj[1].get("dashes", []))
cr.set_line_join(
linejoin.get(obj[1].get("linejoin", "round"), 1))
color = obj[1].get("color", (0, 0, 0))
cr.set_source_rgba(color[0], color[1], color[2],
obj[1].get("opacity", 1))
## TODO: better overlapping of transparent lines.
## Probable solution: render them (while they're of the same opacity and layer) on a temporary canvas that's merged into main later
cr.set_line_width(obj[1].get("width", 1))
cr.set_line_cap(
linecaps.get(obj[1].get("linecap", "butt"), 0))
if "image" in obj[1]:
image = style.cache["image"][obj[1]["image"]]
if image:
pattern = cairo.SurfacePattern(image)
pattern.set_extend(cairo.EXTEND_REPEAT)
cr.set_source(pattern)
line(cr, obj[0].cs)
callback()
# - extruding polygons
#data.sort(lambda x,y:cmp(max([x1[1] for x1 in x[0].cs]), max([x1[1] for x1 in y[0].cs])))
# Pass 1. Creating list of extruded polygons
extlist = []
# fromat: (coords, ("h"/"v", y,z), real_obj)
for obj in data:
if "extrude" in obj[1]:
def face_to_poly(face, hgt):
"""
Converts a line into height-up extruded poly
"""
return [
face[0], face[1], (face[1][0], face[1][1] - hgt),
(face[0][0], face[0][1] - hgt), face[0]
]
hgt = obj[1]["extrude"]
raised = float(obj[1].get("raise", 0))
excoords = [(a[0], a[1] - hgt - raised) for a in obj[0].cs]
faces = []
coord = obj[0].cs[-1]
#p_coord = (coord[0],coord[1]-raised)
p_coord = False
for coord in obj[0].cs:
c = (coord[0], coord[1] - raised)
if p_coord:
extlist.append((face_to_poly([c, p_coord], hgt),
("v", min(coord[1],
p_coord[1]), hgt), obj))
p_coord = c
extlist.append(
(excoords, ("h", min(coord[1], p_coord[1]), hgt), obj))
#faces.sort(lambda x,y:cmp(max([x1[1] for x1 in x]), max([x1[1] for x1 in y])))
# Pass 2. Sorting
def compare_things(a, b):
"""
Custom comparator for extlist sorting.
Sorts back-to-front, bottom-to-top, | > \ > _, horizontal-to-vertical.
"""
t1, t2 = a[1], b[1] #
if t1[1] > t2[1]: # back-to-front
return 1
if t1[1] < t2[1]:
return -1
if t1[2] > t2[2]: # bottom-to-top
return 1
if t1[2] < t2[2]:
return -1
if t1[0] < t2[0]: # h-to-v
return 1
if t1[0] > t2[0]:
return -1
return cmp(
math.sin(
math.atan2(a[0][0][0] - a[0][1][0],
a[0][0][0] - a[0][1][0])),
math.sin(
math.atan2(b[0][0][0] - b[0][1][0],
b[0][0][0] - b[0][1][0])))
print t1
print t2
extlist.sort(compare_things)
# Pass 3. Rendering using painter's algorythm
cr.set_dash([])
for ply, prop, obj in extlist:
if prop[0] == "v":
color = obj[1].get("extrude-face-color",
obj[1].get("color", (0, 0, 0)))
cr.set_source_rgba(
color[0], color[1], color[2],
obj[1].get("extrude-face-opacity",
obj[1].get("opacity", 1)))
poly(cr, ply)
color = obj[1].get("extrude-edge-color",
obj[1].get("color", (0, 0, 0)))
cr.set_source_rgba(
color[0], color[1], color[2],
obj[1].get("extrude-edge-opacity",
obj[1].get("opacity", 1)))
cr.set_line_width(.5)
line(cr, ply)
if prop[0] == "h":
if "fill-color" in obj[1]:
color = obj[1]["fill-color"]
cr.set_source_rgba(
color[0], color[1], color[2],
obj[1].get("fill-opacity",
obj[1].get("opacity", 1)))
poly(cr, ply)
color = obj[1].get("extrude-edge-color",
obj[1].get("color", (0, 0, 0)))
cr.set_source_rgba(
color[0], color[1], color[2],
obj[1].get("extrude-edge-opacity",
obj[1].get("opacity", 1)))
cr.set_line_width(1)
line(cr, ply)
#cr.set_line_width (obj[1].get("width", 1))
#color = obj[1].get("color", (0,0,0) )
#cr.set_source_rgba(color[0], color[1], color[2], obj[1].get("extrude-edge-opacity", obj[1].get("opacity", 1)))
#line(cr,excoords)
#if "fill-color" in obj[1]:
#color = obj[1]["fill-color"]
#cr.set_source_rgba(color[0], color[1], color[2], obj[1].get("fill-opacity", 1))
#poly(cr,excoords)
for obj in data:
if "icon-image" in obj[1]:
image = style.cache["image"][obj[1]["icon-image"]]
if image:
dy = image.get_height() / 2
dx = image.get_width() / 2
where = self.lonlat2screen(
projections.transform(obj[0].center,
self.data.proj, self.proj))
cr.set_source_surface(image, where[0] - dx,
where[1] - dy)
cr.paint()
callback()
# - render text labels
texttimer = Timer("Text rendering")
cr.set_line_join(
1
) # setting linejoin to "round" to get less artifacts on halo render
for obj in data:
if "text" in obj[1]:
text = obj[1]["text"]
#cr.set_line_width (obj[1].get("width", 1))
#cr.set_font_size(float(obj[1].get("font-size", 9)))
ft_desc = pango.FontDescription()
ft_desc.set_family(obj[1].get('font-family', 'sans'))
ft_desc.set_size(pango.SCALE *
int(obj[1].get('font-size', 9)))
fontstyle = obj[1].get('font-style', 'normal')
if fontstyle == 'italic':
fontstyle = pango.STYLE_ITALIC
else:
fontstyle = pango.STYLE_NORMAL
ft_desc.set_style(fontstyle)
fontweight = obj[1].get('font-weight', 400)
try:
fontweight = int(fontweight)
except ValueError:
if fontweight == 'bold':
fontweight = 700
else:
fontweight = 400
ft_desc.set_weight(fontweight)
if obj[1].get('text-transform', None) == 'uppercase':
text = text.upper()
p_ctx = pangocairo.CairoContext(cr)
p_layout = p_ctx.create_layout()
p_layout.set_font_description(ft_desc)
p_layout.set_text(text)
p_attrs = pango.AttrList()
decoration = obj[1].get('text-decoration', 'none')
if decoration == 'underline':
p_attrs.insert(
pango.AttrUnderline(pango.UNDERLINE_SINGLE,
end_index=-1))
decoration = obj[1].get('font-variant', 'none')
if decoration == 'small-caps':
p_attrs.insert(
pango.AttrVariant(pango.VARIANT_SMALL_CAPS,
start_index=0,
end_index=-1))
p_layout.set_attributes(p_attrs)
if obj[1].get("text-position", "center") == "center":
where = self.lonlat2screen(
projections.transform(obj[0].center,
self.data.proj, self.proj))
for t in text_rendered_at:
if ((t[0] - where[0])**2 +
(t[1] - where[1])**2) < 15 * 15:
break
else:
text_rendered_at.add(where)
#debug ("drawing text: %s at %s"%(text, where))
if "text-halo-color" in obj[
1] or "text-halo-radius" in obj[1]:
cr.new_path()
cr.move_to(where[0], where[1])
cr.set_line_width(obj[1].get(
"text-halo-radius", 1))
color = obj[1].get("text-halo-color",
(1., 1., 1.))
cr.set_source_rgb(color[0], color[1], color[2])
cr.text_path(text)
cr.stroke()
cr.new_path()
cr.move_to(where[0], where[1])
cr.set_line_width(obj[1].get(
"text-halo-radius", 1))
color = obj[1].get("text-color", (0., 0., 0.))
cr.set_source_rgb(color[0], color[1], color[2])
cr.text_path(text)
cr.fill()
else: ### render text along line
c = obj[0].cs
text = unicode(text, "utf-8")
# - calculate line length
length = reduce(
lambda x, y: (x[0] +
((y[0] - x[1])**2 +
(y[1] - x[2])**2)**0.5, y[0], y[1]),
c, (0, c[0][0], c[0][1]))[0]
#print length, text, cr.text_extents(text)
if length > cr.text_extents(text)[2]:
# - function to get (x, y, normale) from (c, length_along_c)
def get_xy_from_len(c, length_along_c):
x0, y0 = c[0]
for x, y in c:
seg_len = ((x - x0)**2 + (y - y0)**2)**0.5
if length_along_c < seg_len:
normed = length_along_c / seg_len
return (x - x0) * normed + x0, (
y - y0) * normed + y0, math.atan2(
y - y0, x - x0)
else:
length_along_c -= seg_len
x0, y0 = x, y
else:
return None
da = 0
os = 1
z = length / 2 - cr.text_extents(text)[2] / 2
# print get_xy_from_len(c,z)
if c[0][0] < c[1][0] and get_xy_from_len(
c, z)[2] < math.pi / 2 and get_xy_from_len(
c, z)[2] > -math.pi / 2:
da = 0
os = 1
z = length / 2 - cr.text_extents(text)[2] / 2
else:
da = math.pi
os = -1
z = length / 2 + cr.text_extents(text)[2] / 2
z1 = z
if "text-halo-color" in obj[
1] or "text-halo-radius" in obj[1]:
cr.set_line_width(
obj[1].get("text-halo-radius", 1.5) * 2)
color = obj[1].get("text-halo-color",
(1., 1., 1.))
cr.set_source_rgb(color[0], color[1], color[2])
xy = get_xy_from_len(c, z)
cr.save()
#cr.move_to(xy[0],xy[1])
p_ctx.translate(xy[0], xy[1])
cr.rotate(xy[2] + da)
#p_ctx.translate(x,y)
#p_ctx.show_layout(p_layout)
p_ctx.layout_path(p_layout)
cr.restore()
cr.stroke()
#for letter in text:
#cr.new_path()
#xy = get_xy_from_len(c,z)
##print letter, cr.text_extents(letter)
#cr.move_to(xy[0],xy[1])
#cr.save()
#cr.rotate(xy[2]+da)
#cr.text_path(letter)
#cr.restore()
#cr.stroke()
#z += os*cr.text_extents(letter)[4]
color = obj[1].get("text-color", (0., 0., 0.))
cr.set_source_rgb(color[0], color[1], color[2])
z = z1
xy = get_xy_from_len(c, z)
cr.save()
#cr.move_to(xy[0],xy[1])
p_ctx.translate(xy[0], xy[1])
cr.rotate(xy[2] + da)
#p_ctx.translate(x,y)
p_ctx.show_layout(p_layout)
cr.restore()
#for letter in text:
#cr.new_path()
#xy = get_xy_from_len(c,z)
##print letter, cr.text_extents(letter)
#cr.move_to(xy[0],xy[1])
#cr.save()
#cr.rotate(xy[2]+da)
#cr.text_path(letter)
#cr.restore()
#cr.fill()
#z += os*cr.text_extents(letter)[4]
texttimer.stop()
del data
del layers
timer.stop()
rendertimer.stop()
debug(self.bbox)
callback(True)