def getDefaultSymbol(size):
symbol = QgsMarkerSymbol()
for i in range(symbol.symbolLayerCount()):
symbol.takeSymbolLayer(0)
symbolLayer = QgsSvgMarkerSymbolLayer(
os.path.join(os.path.dirname(__file__), 'svg', 'question.svg'))
symbolLayer.setSizeUnit(3)
symbolLayer.setSize(size)
symbol.insertSymbolLayer(0, symbolLayer)
return symbol
def append_PictureMarkerSymbolLayer(symbol, layer: PictureMarkerSymbolLayer,
context: Context):
"""
Appends a PictureMarkerSymbolLayer to a symbol
"""
picture = layer.picture
if issubclass(picture.__class__, StdPicture):
picture = picture.picture
if layer.swap_fb_gb:
raise NotImplementedException('Swap FG/BG color not implemented')
if issubclass(picture.__class__, EmfPicture):
path = symbol_name_to_filename(context.symbol_name,
context.picture_folder, 'emf')
with open(path, 'wb') as f:
f.write(picture.content)
svg_path = symbol_name_to_filename(context.symbol_name,
context.picture_folder, 'svg')
emf_to_svg(path, svg_path)
svg_path = context.convert_path(svg_path)
else:
svg = PictureUtils.to_embedded_svg(
picture.content, symbol_color_to_qcolor(layer.color_foreground),
symbol_color_to_qcolor(layer.color_background),
symbol_color_to_qcolor(layer.color_transparent))
if context.embed_pictures:
svg_base64 = base64.b64encode(svg.encode('UTF-8')).decode('UTF-8')
svg_path = 'base64:{}'.format(svg_base64)
else:
svg_path = write_svg(svg, context.symbol_name,
context.picture_folder)
svg_path = context.convert_path(svg_path)
out = QgsSvgMarkerSymbolLayer(svg_path, context.convert_size(layer.size),
layer.angle)
out.setSizeUnit(context.units)
out.setEnabled(layer.enabled)
out.setLocked(layer.locked)
out.setOffset(
adjust_offset_for_rotation(
QPointF(context.convert_size(layer.x_offset),
-context.convert_size(layer.y_offset)), layer.angle))
out.setOffsetUnit(context.units)
symbol.appendSymbolLayer(out)
def getSymbolLayer(folder, svg, size):
svg = svg + '.svg'
root = os.path.join(os.path.dirname(__file__), 'svg', folder)
filepath = None
for base, dirs, files in os.walk(root):
matching = fnmatch.filter(files, svg)
if matching:
filepath = os.path.join(base, matching[0])
break
if filepath is not None:
symbolLayer = QgsSvgMarkerSymbolLayer(filepath)
symbolLayer.setSizeUnit(3)
symbolLayer.setSize(size)
return symbolLayer
else:
return None
def append_CharacterMarkerSymbolLayerAsSvg(symbol, layer, context: Context): # pylint: disable=too-many-locals
"""
Appends a CharacterMarkerSymbolLayer to a symbol, rendering the font character
to an SVG file.
"""
font_family = layer.font
character = chr(layer.unicode)
color = symbol_color_to_qcolor(layer.color)
angle = convert_angle(layer.angle)
font = QFont(font_family)
font.setPointSizeF(layer.size)
# Using the rect of a painter path gives better results then using font metrics
path = QPainterPath()
path.setFillRule(Qt.WindingFill)
path.addText(0, 0, font, character)
rect = path.boundingRect()
font_bounding_rect = QFontMetricsF(font).boundingRect(character)
# adjust size -- marker size in esri is the font size, svg marker size in qgis is the svg rect size
scale = rect.width() / font_bounding_rect.width()
gen = QSvgGenerator()
svg_path = symbol_name_to_filename(context.symbol_name,
context.picture_folder, 'svg')
gen.setFileName(svg_path)
gen.setViewBox(rect)
painter = QPainter(gen)
painter.setFont(font)
# todo -- size!
if context.parameterise_svg:
painter.setBrush(QBrush(QColor(255, 0, 0)))
else:
painter.setBrush(QBrush(color))
painter.setPen(Qt.NoPen)
painter.drawPath(path)
painter.end()
if context.parameterise_svg:
with open(svg_path, 'r') as f:
t = f.read()
t = t.replace('#ff0000', 'param(fill)')
t = t.replace('fill-opacity="1" ',
'fill-opacity="param(fill-opacity)"')
t = t.replace(
'stroke="none"',
'stroke="param(outline)" stroke-opacity="param(outline-opacity) 1" stroke-width="param(outline-width) 0"'
)
with open(svg_path, 'w') as f:
f.write(t)
svg_path = context.convert_path(svg_path)
out = QgsSvgMarkerSymbolLayer(svg_path)
out.setSizeUnit(context.units)
out.setSize(context.convert_size(scale * rect.width()))
out.setAngle(angle)
out.setFillColor(color)
out.setStrokeWidth(0)
out.setEnabled(layer.enabled)
out.setLocked(layer.locked)
out.setOffset(
adjust_offset_for_rotation(
QPointF(context.convert_size(layer.x_offset),
-context.convert_size(layer.y_offset)), layer.angle))
out.setOffsetUnit(context.units)
symbol.appendSymbolLayer(out)