def draw_page(self, operation, context, page_number):
cr = context.get_cairo_context()
cr.set_source_rgb(0, 0, 0)
start_line = page_number * self.lines_per_page
if page_number + 1 != operation.props.n_pages:
end_line = start_line + self.lines_per_page
else:
end_line = self.layout.get_line_count()
cr.move_to(0, 0)
iter = self.layout.get_iter()
i = 0
while 1:
if i > start_line:
# Must be get_line_readonly
line = iter.get_line_readonly()
cr.rel_move_to(0, self.font_size / 2)
PangoCairo.show_layout_line(cr, line)
i += 1
if not (i < end_line and iter.next_line()):
break
def draw_page (self, operation, context, page_number): cr = context.get_cairo_context() cr.set_source_rgb(0, 0, 0) start_line = page_number * self.lines_per_page if page_number + 1 != operation.props.n_pages: end_line = start_line + self.lines_per_page else: end_line = self.layout.get_line_count() cr.move_to(0, 0) iter = self.layout.get_iter() i=0 while 1: if i > start_line: #Must be get_line_readonly line = iter.get_line_readonly() cr.rel_move_to(0, self.font_size/2) PangoCairo.show_layout_line(cr,line) i += 1 if not (i < end_line and iter.next_line()): break
def show_line(context):
"""Draw the given ``line`` to the Cairo ``context``."""
PangoCairo.update_layout(context, self.layout)
PangoCairo.show_layout_line(context, first_line)
def show_first_line(cairo_context, pango_layout, hinting):
"""Draw the given ``line`` to the Cairo ``context``."""
if hinting:
PangoCairo.update_layout(cairo_context, pango_layout)
lines = pango_layout.get_lines_readonly()
PangoCairo.show_layout_line(cairo_context, lines[0])
def cairo_text(cr, node):
boundary = [float(i) for i in node.attr['Boundary'].split(' ')]
ctm = None
if 'CTM' in node.attr:
ctm = [float(i) for i in node.attr['CTM'].split(' ')]
font_id = node.attr['Font']
font_family = get_font_from_id(font_id).get_font_family()
font_size = float(node.attr['Size']) / 1.3
fillColor = [0, 0, 0]
if 'FillColor' in node:
fillColor = [
float(i) / 255. for i in node['FillColor'].attr['Value'].split(' ')
]
strokeColor = [0, 0, 0]
if 'StrokeColor' in node:
strokeColor = [
float(i) / 255.
for i in node['StrokeColor'].attr['Value'].split(' ')
]
TextCode = node['TextCode']
text = TextCode.text
# print(f'cario text {text}, {font_id}')
deltaX = None
deltaY = None
if 'DeltaX' in TextCode.attr:
deltaX = _trans_Delta(TextCode.attr['DeltaX'].split(' '), scale=1)
if deltaX and len(deltaX) + 1 != len(text):
# raise Exception('TextCode DeltaX 与字符个数不符')
deltaX = deltaX[:len(text) - 1]
if 'DeltaY' in TextCode.attr:
deltaY = _trans_Delta(TextCode.attr['DeltaY'].split(' '), scale=1)
if deltaY and len(deltaY) + 1 != len(text):
# raise Exception('TextCode DeltaY 与字符个数不符')
deltaY = deltaY[:len(text) - 1]
X = float(TextCode.attr['X'])
Y = float(TextCode.attr['Y'])
for idx, rune in enumerate(text):
cr.save()
# cr.identity_matrix()
# cr.scale(SCALE_128, SCALE_128)
layout = PangoCairo.create_layout(cr)
layout.set_text(rune, -1)
# print(font_family, rune)
desc = Pango.FontDescription.from_string(f"{font_family} {font_size}")
layout.set_font_description(desc)
ink_rect, logical_rect = layout.get_pixel_extents()
r_w, r_h = layout.get_size()
baseline = layout.get_baseline() / Pango.SCALE
# print(f'{rune}, baseline: {baseline}, X:{X}, Y:{Y} Boundary:{boundary}')
offset_x = sum(deltaX[:idx]) if deltaX else 0
offset_y = sum(deltaY[:idx]) if deltaY else 0
# cr.move_to(boundary[0] + offset_x, boundary[1] + offset_y)
cr.move_to(boundary[0], boundary[1])
if ctm:
matrix = cr.get_matrix().multiply(cairo.Matrix(*ctm))
cr.set_matrix(matrix)
cr.rel_move_to(X + offset_x, Y + offset_y)
cr.set_source_rgb(*fillColor)
# PangoCairo.show_layout(cr, layout)
PangoCairo.show_layout_line(cr, layout.get_line(0))
cr.restore()
pass
def show_first_line(cairo_context, pango_layout, hinting):
"""Draw the given ``line`` to the Cairo ``context``."""
if hinting:
PangoCairo.update_layout(cairo_context, pango_layout)
lines = pango_layout.get_lines_readonly()
PangoCairo.show_layout_line(cairo_context, lines[0])
