def configure(self, widget, _event):
"""Handles window configuration event."""
self.pixmap = gtk.gdk.Pixmap(
self.window, self.window_width, self.window_height)
graphics_context = widget.get_style().black_gc
self.pixmap.draw_rectangle(graphics_context, True,
0, 0, self.window_width, self.window_height)
center_x, center_y = ((self.window_width - self.new_w)/2,
(self.window_height-self.new_h)/2)
self.pixmap.draw_pixbuf(graphics_context, self.pixbuf, 0, 0,
center_x, center_y,
self.new_w, self.new_h)
context = self.create_pango_context()
fsize = context.get_font_description().get_size()*3/2
font = context.get_font_description()
font.set_size(fsize)
context.set_font_description(font)
layout = pango.Layout(context)
layout.set_alignment(pango.ALIGN_CENTER)
layout.set_markup(self.p_title+'\n'+self.p_credit)
psize_x, _unused_psize_y = layout.get_pixel_size()
self.pixmap.draw_layout(graphics_context,
(self.window_width-psize_x)/2, center_y+23, layout)
self.pixmap.draw_layout(widget.get_style().white_gc,
(self.window_width-psize_x)/2-3, center_y+20,
layout)
def redraw_rect(self, widget, r):
style = widget.get_style()
(w, h) = (widget.allocation.width, widget.allocation.height)
xc = w // 2
yc = h // 2
radius = min(w, h) // 2 - 1
# text
context = widget.get_pango_context()
layout = pango.Layout(context)
# some pygtk versions want 2 args, some want 1. sigh
try:
layout.set_text(self.text)
except TypeError:
layout.set_text(self.text, len(self.text))
(text_width, text_height) = layout.get_pixel_size()
style.paint_layout(widget.window, widget.state, True, r, widget, "",
xc - text_width // 2, yc - text_height // 2, layout)
# outer circle
gc = style.fg_gc[widget.state]
widget.window.draw_arc(gc, False, xc - radius, yc - radius,
radius * 2 - 1, radius * 2 - 1, 0, 360 * 64)
# inner circle indicating current angle
angle = self.get_current_angle()
(ptr_xc, ptr_yc) = self.pointer_coords(radius, angle)
widget.window.draw_arc(gc, True, int(xc + ptr_xc - T.ptr_radius),
int(yc + ptr_yc - T.ptr_radius),
T.ptr_radius * 2 - 1, T.ptr_radius * 2 - 1, 0,
360 * 64)
def drawLegend(self):
widget = self.wTree.get_widget("drawingarea2")
lyt = pango.Layout(gtk.Widget.create_pango_context(widget))
background = Color(red=35535, green=35535, blue=35535)
maxI = 0
for i in xrange(len(self.wls)):
maxI = i
#self.drawHorizontalWall( 10, i*30, i, widget )
x = 0
y = i * 30 + 10
for a in xrange(self.borderSize):
widget.window.draw_line(self.wall_colors[i], x, y + a,
x + self.rectSize, y + a)
lyt.set_text(self.wls[i])
widget.window.draw_layout(self.wall_colors[0], 0, i * 30 + 20, lyt,
None, background)
maxI += 1
widget.window.draw_rectangle(self.gcRed, 0, 1, maxI * 30 + 20,
self.rectSize - 1, self.rectSize - 1)
lyt.set_text("Red deploy")
widget.window.draw_layout(self.wall_colors[0], 0, maxI * 30 + 41, lyt,
None, background)
widget.window.draw_rectangle(self.gcBlue, 0, 1, maxI * 30 + 60,
self.rectSize - 1, self.rectSize - 1)
lyt.set_text("Blue deploy")
widget.window.draw_layout(self.wall_colors[0], 0, maxI * 30 + 81, lyt,
None, background)
def display_license_window(self, licenses):
dialog = gtk.MessageDialog(self.parent(), 0,
gtk.MESSAGE_INFO,
gtk.BUTTONS_NONE,
_("You must agree to the licenses "
"covering this software before "
"installing it."))
license_texts = string.join(licenses, "\n" + "#"*79 + "\n")
text = gtk.TextView()
text.set_editable(0)
text.set_cursor_visible(0)
text.set_wrap_mode(gtk.WRAP_WORD)
buf = text.get_buffer()
buf.set_text(license_texts)
context = text.get_pango_context()
font_desc = context.get_font_description()
font_desc.set_family("monospace")
# Try to estimate the size of the window we want.
# "W" being the widest glyph.
s = ("W"*82 + "\n")*20
layout = pango.Layout(context)
layout.set_font_description(font_desc)
layout.set_text(s)
width, height = layout.get_pixel_size()
text.set_size_request(width, height)
# Create a tag with our monospace font
tag = buf.create_tag()
tag.set_property("font-desc", font_desc)
buf.apply_tag(tag, buf.get_start_iter(), buf.get_end_iter())
# Get a mark to the start of the buffer and then scroll there
iter = buf.get_start_iter()
mark = buf.create_mark("start", iter, left_gravity=1)
text.scroll_to_mark(mark, 0.0)
sw = gtk.ScrolledWindow()
sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
sw.set_shadow_type(gtk.SHADOW_IN)
sw.add(text)
sw.show_all()
dialog.vbox.pack_start(sw, expand=1, fill=1)
dialog.add_button(_("I Agree"), gtk.RESPONSE_OK)
dialog.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
gtk.threads_enter()
response = dialog.run()
dialog.destroy()
gtk.threads_leave()
if response != gtk.RESPONSE_OK:
self.pop()
return 0
return 1
def prepare_stringed(self, rows, cols):
# We use a Pixmap as offscreen drawing canvas
cm = gtk.gdk.colormap_get_system()
pm = gtk.gdk.Pixmap(None, self.width, self.height,
cm.get_visual().depth)
#pangolayout = pm.create_pango_layout("")
font_size = int(self.width / cols / 4)
l = gtk.Label()
pangolayout = pango.Layout(l.create_pango_context())
pangolayout.set_font_description(
pango.FontDescription("sans bold %i" % font_size))
gc = pm.new_gc()
gc.set_colormap(gtk.gdk.colormap_get_system())
color = cm.alloc_color('white')
gc.set_foreground(color)
pm.draw_rectangle(gc, True, 0, 0, self.width, self.height)
color = cm.alloc_color('black')
gc.set_foreground(color)
sw, sh = (self.width / cols), (self.height / rows)
item = iter(self.tlist)
for r in range(rows):
for c in range(cols):
px = sw * c
py = sh * r
#if c > 0 and r > 0:
# pm.draw_line(gc, px, 0, px, self.height-1)
# pm.draw_line(gc, 0, py, self.width-1, py)
pangolayout.set_text(str(item.next()))
pe = pangolayout.get_pixel_extents()
pe = pe[1][2] / 2, pe[1][3] / 2
def engrave(self, widget, gc, staff_yoffset):
self.do_layout()
dim = dimentions[self.m_fontsize]
m = (self.m_xpos1 + self.m_xpos2) / 2
if self.m_direction == const.UP or self.m_direction == const.BOTH:
y = min(staff_yoffset - dim.linespacing * 3,
staff_yoffset + self.m_t * dim.linespacing / 2)
d = 1
else: # == const.DOWN
y = max(staff_yoffset + dim.linespacing * 5,
staff_yoffset + self.m_b * dim.linespacing / 2)
d = -1
if len(self.m_stems) > 1:
# left horiz
widget.window.draw_line(gc, self.m_xpos1, y, m - 6, y)
# right horiz
widget.window.draw_line(gc, m + 6, y, self.m_xpos2, y)
# left vertic
widget.window.draw_line(gc, self.m_xpos1, y, self.m_xpos1,
y + 5 * d)
# right vertic
widget.window.draw_line(gc, self.m_xpos2, y, self.m_xpos2,
y + 5 * d)
cc = widget.create_pango_context()
ll = pango.Layout(cc)
ll.set_text(str(self.m_ratio.m_den))
ll.set_font_description(pango.FontDescription("Sans 10"))
sx, sy = [i / pango.SCALE for i in ll.get_size()]
widget.window.draw_layout(gc, m - sx / 2, y - sy / 2, ll)
def recalc_text_edges(self):
if (not hasattr(self, "layout")):
return
del self.layout
show_text = self.attrs_changed()
r, g, b = utils.selected_colors["fill"]
r *= 65536
g *= 65536
b *= 65536
if self.index > self.end_index:
bgsel = pango.AttrBackground(int(r), int(g), int(b),
self.end_index, self.index)
else:
bgsel = pango.AttrBackground(int(r), int(g), int(b), self.index,
self.end_index)
self.attrlist.insert(bgsel)
self.layout = pango.Layout(self.pango_context)
self.layout.set_text(show_text)
self.layout.set_attributes(self.attrlist)
margin = utils.margin_required(utils.STYLE_NORMAL)
text_w, text_h = self.layout.get_pixel_size()
text_w += margin[0] + margin[2]
text_h += margin[1] + margin[3]
self.width = max(self.width, text_w)
self.height = max(self.height, text_h)
self.min_x = self.ul[0] + (self.width - text_w) / 2 + margin[0]
self.min_y = self.ul[1] + (self.height - text_h) / 2 + margin[1]
self.max_x = self.min_x + text_w
self.max_y = self.min_y + text_h
"""
def configure_event(widget, event):
x, y, w, h = widget.get_allocation()
self.pix_map = gtk.gdk.Pixmap(widget.window, w, h)
# make colors
self.gc = dict()
for name, color in (('black', (0, 0, 0)), ('red', (32000, 0, 0)),
('blue', (0, 0, 32000)), ('green', (0, 32000,
0))):
self.gc[name] = self.pix_map.new_gc()
self.gc[name].set_rgb_fg_color(
gtk.gdk.Color(red=color[0], green=color[1], blue=color[2]))
self.layout = pango.Layout(widget.create_pango_context())
self.canvas_width = w
self.canvas_height = h
self.x_max = eval(x_max, {"__builtins__": {}}, safe_dict)
self.x_min = eval(x_min, {"__builtins__": {}}, safe_dict)
self.x_scale = eval(x_scale, {"__builtins__": {}}, safe_dict)
self.y_max = eval(y_max, {"__builtins__": {}}, safe_dict)
self.y_min = eval(y_min, {"__builtins__": {}}, safe_dict)
self.y_scale = eval(y_scale, {"__builtins__": {}}, safe_dict)
self.previousMouseX = 0
self.previousMouseY = 0
self.plot()
return True
def draw_text_box_centered(ctx, widget, w_width, w_height, text, font_desc=None, add_progress=None):
style = widget.rc_get_style()
text_color = style.text[gtk.STATE_PRELIGHT]
red, green, blue = text_color.red, text_color.green, text_color.blue
text_color = [float(x)/65535. for x in (red, green, blue)]
text_color.append(.5)
if font_desc is None:
font_desc = style.font_desc
font_desc.set_size(14*pango.SCALE)
pango_context = widget.create_pango_context()
layout = pango.Layout(pango_context)
layout.set_font_description(font_desc)
layout.set_text(text)
width, height = layout.get_pixel_size()
ctx.move_to(w_width/2-width/2, w_height/2-height/2)
ctx.set_source_rgba(*text_color)
ctx.show_layout(layout)
# Draw an optional progress bar below the text (same width)
if add_progress is not None:
bar_height = 10
ctx.set_source_rgba(*text_color)
ctx.set_line_width(1.)
rounded_rectangle(ctx, w_width/2-width/2-.5, w_height/2+height-.5, width+1, bar_height+1)
ctx.stroke()
rounded_rectangle(ctx, w_width/2-width/2, w_height/2+height, int(width*add_progress)+.5, bar_height)
ctx.fill()
def __init__(self,
context,
parsed_elements_list=None,
color=None,
override_color=None,
scaling=1.0):
pango.Layout.__init__(self, context)
self._width = -1
self._ellipsize = True
self._elayout = pango.Layout(context)
self._elayout.set_text('___') #…
self._elayout.set_ellipsize(pango.ELLIPSIZE_END)
self._elayout.set_width(0)
self._in_override = False # color override mode, used for selected text
self._base_to_center = 0
self._text_height = 0
self._smilies = {} # key: (index_pos), value(pixbuf)
self._base_attrlist = None # no color
self._attrlist = None # with color
self._override_attrlist = None # with override color
self.angle = 0
self._color = color
self._override_color = override_color
self._smilies_scaled = {} # key: (index_pos), value(pixbuf)
self._scaling = scaling # relative to ascent + desent, -1 for natural
self._is_rtl = False
self.set_element_list(parsed_elements_list)
self._update_layout()
def render_to_job(job):
pc = job.get_context()
width, height = gnomeprint.job_get_page_size_from_config(job.get_config())
## <<<begin drawing>>>
pc.beginpage("1")
pc.setlinewidth(3.0)
x1 = width*.1
x2 = width*.9
y1 = height*.1
y2 = height*.9
pc.rect_stroked(x1, y1, x2 - x1, y2 - y1)
for l in l1, l2:
pc.moveto(l[0], 600 - l[1])
for i in xrange(len(l)/2):
x = l[i*2]
y = 600 - l[i*2 + 1]
pc.lineto(x, y)
pc.stroke()
## Draw a text paragraph using pango
paraContext = gnomeprint.pango_create_context(gnomeprint.pango_get_default_font_map())
para = pango.Layout(paraContext)
para.set_font_description(pango.FontDescription("Sans 36"))
para.set_markup("♪ Hello <b>World</b> ♪")
w, h = para.get_size()
w /= pango.SCALE
h /= pango.SCALE
pc.moveto(width - w, height - h)
pc.pango_layout(para)
pc.showpage()
## <<<end drawing>>>
job.close()
def render(self, text, antialias, color, background=None):
"""Render the font onto a new Surface and return it.
We ignore 'antialias' and use system settings.
NOTE: Due to a retarded implementation problem you cannot use
transparent colors. Alpha is ignored (set to 255)."""
# create layout
layout = pango.Layout(gtk.gdk.pango_context_get())
layout.set_font_description(self.fd)
layout.set_text(text)
# determine pixel size
(logical, ink) = layout.get_pixel_extents()
ink = pygame.rect.Rect(ink)
# Create a new Cairo ImageSurface
csrf = cairo.ImageSurface(cairo.FORMAT_ARGB32, ink.w, ink.h)
cctx = pangocairo.CairoContext(cairo.Context(csrf))
# 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.
big_endian = ((1, ) == struct.unpack("=i", "\0\0\0\001"))
def mangle_color(color):
if len(color) not in [3, 4]:
raise ArgumentError(
"expected a 3- or 4-integer-tuple for color")
if big_endian:
# Big-endian; leave
return (color[0] / 255.0, color[1] / 255.0, color[2] / 255.0,
1.0)
else:
# Little-endian; swizzle
return (color[2] / 255.0, color[1] / 255.0, color[0] / 255.0,
1.0)
# render onto it
if background is not None:
cctx.set_source_rgba(*mangle_color(background))
cctx.paint()
cctx.new_path()
cctx.layout_path(layout)
cctx.set_source_rgba(*mangle_color(color))
cctx.fill()
# Create and return a new Pygame Image derived from the Cairo Surface
if big_endian:
# You see, in big-endian-world, we can just use the RGB values
format = "ARGB"
else:
# But with little endian, we've already swapped R and B in
# mangle_color, so now just move the A
format = "RGBA"
return pygame.image.fromstring(str(csrf.get_data()), (ink.w, ink.h),
format)
def print_pango_markup(self, context, markup):
"Print some markup to the supplied context"
## need to use pango.Layout to format paragraphs
## for each block of text
paraContext = gnomeprint.pango_create_context(gnomeprint.pango_get_default_font_map())
para = pango.Layout(paraContext)
para.set_markup(markup)
context.pango_layout(para)
def __init__(self, context, font, color, shadow):
self.layout = pango.Layout(context)
self.layout.set_wrap(pango.WRAP_WORD_CHAR)
self.font = font
self.color = color
self.layout.set_font_description(font.description.copy())
self.width = self.height = None
self.shadow = shadow
def __init__(self, antialias):
G15Text.__init__(self, antialias)
pangocairo.context_set_font_options(pango_context,
self._create_font_options())
self.__pango_cairo_context = None
self.__layout = None
self.valign = pango.ALIGN_CENTER
self.__layout = pango.Layout(pango_context)
def calculate_required_text_size(self, max_len):
# "W" being the widest glyph.
s = "W" * max_len
layout = pango.Layout(gtk.Label("").get_pango_context())
layout.set_text(s)
(width, height) = layout.get_pixel_size()
return (width, height)
def stringSize(self, s, font=None):
if font is None:
font = self.defaultFont
if self.pango_context is None:
self.pango_context = self.area.get_pango_context()
layout = pango.Layout(self.pango_context)
layout.set_markup(self.createPangoMarkup(s, font))
return layout.get_pixel_size()
def __get_width(self):
if not (self.flags() & gtk.REALIZED):
return 80
layout = pango.Layout(self.get_pango_context())
letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
layout.set_text(letters)
pix_width = layout.get_pixel_size()[0]
return self.allocation.width * len(letters) / pix_width
def getTopExents(self, attr_list, text):
c = pango.FontMap.create_context(
pangocairo.cairo_font_map_get_default())
l = pango.Layout(c)
l.set_attributes(attr_list)
l.set_text(text)
line = l.get_line(0)
return (line.get_pixel_extents()[1][3] - line.get_pixel_extents()[0][3]
) * (self.input_resolution / self.output_resolution)
def widget_get_char_height(widget):
"""
Return maximum height in pixels of a single character.
We create a Pango Layout, put in a line of lowercase+uppercase letters
and read the height of the line."""
pango_layout = pango.Layout(widget.get_pango_context())
pango_layout.set_text(sys.modules['string'].ascii_letters)
extents = pango_layout.get_line(0).get_pixel_extents()
return int(extents[0][3] - extents[0][1])
def __init__(self, suggested_items, *args, **kwargs):
self._minimum_width_chars = kwargs.pop("minimum_width_chars", -1)
self._maximum_width_chars = kwargs.pop("maximum_width_chars", -1)
self._default_item_value = kwargs.pop("default_item", None)
self._suggested_fields = _get_suggested_fields(suggested_items)
suggested_item_values = [item[1] for item in suggested_items]
if (self._default_item_value is not None
and self._default_item_value not in suggested_item_values):
raise ValueError(
'default item "{0}" not in the list of suggested items: {1}'.
format(self._default_item_value, suggested_item_values))
kwargs["placeholder_text"] = (
suggested_items[suggested_item_values.index(
self._default_item_value)][0]
if self._default_item_value is not None else None)
super().__init__(*args, **kwargs)
self._cursor_position = 0
self._cursor_position_before_assigning_from_row = None
self._reset_cursor_position_before_assigning_from_row = True
self._last_field_name_with_tooltip = ""
self._pango_layout = pango.Layout(self.get_pango_context())
self._minimum_width = -1
self._maximum_width = -1
self.set_width_chars(self._minimum_width_chars)
self._popup = pggui_entrypopup.EntryPopup(self, self._COLUMN_TYPES,
suggested_items)
self._popup.filter_rows_func = self._filter_suggested_items
self._popup.on_assign_from_selected_row = self._on_assign_from_selected_row
self._popup.on_assign_last_value = self._assign_last_value
self._popup.on_row_left_mouse_button_press = self._on_row_left_mouse_button_press
self._popup.on_entry_changed_show_popup_condition = self._on_entry_changed_condition
self._popup.on_entry_key_press = self._on_entry_key_press
self._popup.on_entry_after_assign_by_key_press = (
self._on_entry_after_assign_by_key_press)
self._create_field_tooltip()
self._add_columns()
self.connect("insert-text", self._on_entry_insert_text)
self.connect("delete-text", self._on_entry_delete_text)
self.connect("notify::cursor-position",
self._on_entry_cursor_position_changed)
self.connect("changed", self._on_entry_changed)
self.connect("focus-out-event", self._on_entry_focus_out_event)
self.connect("size-allocate", self._on_entry_size_allocate)
def __init__(self, text, context, font, pressed, disabled=False):
self.layout = pango.Layout(context)
self.font = font
self.layout.set_font_description(font.description.copy())
self.layout.set_text(text)
self.min_width = 0
self.pressed = pressed
self.disabled = disabled
self.icon = None
def __init__(self):
''' Init. '''
self.font = self.get_font()
self.linear_pos = LINEAR_POS
self.pango_context = gtk.gdk.pango_context_get()
self.pango_layout = pango.Layout(self.pango_context)
self.text = ""
self.linear_colors = LINEAR_COLORS
self.update_font()
def _get_pango_layout(self, text, single_paragraph_mode):
layout = self._pango_layout
if not layout:
layout = pango.Layout(_pango_context)
layout.set_font_description(self._pango_description)
self._pango_layout = layout
layout.set_single_paragraph_mode(single_paragraph_mode)
layout.set_text(text)
return layout
def __init__(self, adjustment=None):
gtk.Widget.__init__(self)
self.set_flags(gtk.CAN_FOCUS)
self.offscreen_pixmap = None
self.palette = {}
self.gc = {}
self.cursor = gtk.gdk.Cursor(gtk.gdk.CROSS)
context = self.create_pango_context()
desc = context.get_font_description()
desc.set_family("monospace")
desc.set_absolute_size(12 * pango.SCALE)
self.layout12 = pango.Layout(context)
desc.set_absolute_size(10 * pango.SCALE)
self.layout10 = pango.Layout(context)
desc.set_absolute_size(9 * pango.SCALE)
self.layout9 = pango.Layout(context)
self.metrics = Metrics(self.layout10)
self.adjustment = None
self.handler_id_changed = -1
self.handler_id_value_changed = -1
self.player = Player(self)
self.audiofile = ""
self.caps = None
self.data = array.array("b")
self.loader_thread_id = -1
self.fr_cut_in = 0
self.fr_cut_out = 8000 * 60
self.x_cue_pos = -1
self.draw_solid = True
self.draw_buf = {0: []}
self.playback_status = (False, 0)
if not adjustment:
adjustment = gtk.Adjustment(0, 0, 8000 * 60, page_size=8000 * 60)
self.set_adjustment(adjustment)
def on_render(self, window, widget, background_area, cell_area, expose_area, flags):
cairo_context = window.cairo_create()
x = cell_area.x
y = cell_area.y
w = cell_area.width
h = cell_area.height
if x == 0:
curve_to = 'start'
elif (x + w ) == widget.allocation.width:
curve_to = 'end'
else:
curve_to = None
self.render_rect(cairo_context, x, y, w, h, 1, curve_to)
pat = cairo.LinearGradient(x, y, x, y + h)
color = gtk.gdk.color_parse("#87D8F5")
pat.add_color_stop_rgba(
0.0,
self.get_cairo_color(color.red),
self.get_cairo_color(color.green),
self.get_cairo_color(color.blue),
1
)
color = gtk.gdk.color_parse(self.get_property('background'))
pat.add_color_stop_rgb(
1.0,
self.get_cairo_color(color.red),
self.get_cairo_color(color.green),
self.get_cairo_color(color.blue)
)
#### pat.add_color_stop_rgb(
#### 0.8,
#### self.get_cairo_color(color.red),
#### self.get_cairo_color(color.green),
#### self.get_cairo_color(color.blue)
#### )
#### color = gtk.gdk.color_parse("#ffffff")
#### pat.add_color_stop_rgba(
#### 1.0,
#### self.get_cairo_color(color.red),
#### self.get_cairo_color(color.green),
#### self.get_cairo_color(color.blue),
#### 1
#### )
cairo_context.set_source(pat)
cairo_context.fill()
context = widget.get_pango_context()
layout = pango.Layout(context)
layout.set_text(self.get_property('text'))
layout.set_width(cell_area.width)
widget.style.paint_layout(window, gtk.STATE_NORMAL, True,
cell_area, widget, 'footext',
cell_area.x, cell_area.y,
layout)
def _get_width_for_string(self, text):
# Add some extra margin
text = text + 'aaaaa'
widget = gtk.Label('')
context = widget.get_pango_context()
layout = pango.Layout(context)
layout.set_text(text)
width, height_ = layout.get_size()
return pango.PIXELS(width)
def get_layout(self, pangocontext):
font = pango.FontDescription()
font.set_family("sans")
font.set_size(self.font_size * pango.SCALE)
layout = pango.Layout(pangocontext)
layout.set_font_description(font)
layout.set_text(self.text)
return layout
def _get_pango_layout():
if (not _DEPTH in _pango_layouts):
w = gtk.HBox()
w.set_colormap(_CMAP)
ctx = gtk.HBox().get_pango_context()
layout = pango.Layout(ctx)
_pango_layouts[_DEPTH] = layout
return _pango_layouts[_DEPTH]
def update_line_height(self):
pango_context = gtk.gdk.pango_context_get()
pango_layout = pango.Layout(pango_context)
font_desc = pango.FontDescription(self.get_font())
pango_layout.set_font_description(font_desc)
metrics = pango_context.get_metrics(pango_layout.get_font_description())
ascent = metrics.get_ascent()
descent = metrics.get_descent()
line_height = (ascent + descent) / pango.SCALE + self.line_margin
self.__line_height = line_height
