def createFormatSettings(self):
s = QgsTextFormat()
s.setBuffer(self.createBufferSettings())
s.setBackground(self.createBackgroundSettings())
s.setShadow(self.createShadowSettings())
s.setFont(getTestFont())
s.setNamedStyle('Roman')
s.setSize(5)
s.setSizeUnit(QgsUnitTypes.RenderPoints)
s.setSizeMapUnitScale(QgsMapUnitScale(1, 2))
s.setColor(QColor(255, 0, 0))
s.setOpacity(0.5)
s.setBlendMode(QPainter.CompositionMode_Difference)
s.setLineHeight(5)
return s
def createFormatSettings(self):
s = QgsTextFormat()
s.setBuffer(self.createBufferSettings())
s.setBackground(self.createBackgroundSettings())
s.setShadow(self.createShadowSettings())
s.setFont(getTestFont())
s.setNamedStyle('Roman')
s.setSize(5)
s.setSizeUnit(QgsUnitTypes.RenderPoints)
s.setSizeMapUnitScale(QgsMapUnitScale(1, 2))
s.setColor(QColor(255, 0, 0))
s.setOpacity(0.5)
s.setBlendMode(QPainter.CompositionMode_Difference)
s.setLineHeight(5)
return s
def createFormatSettings(self):
s = QgsTextFormat()
s.setBuffer(self.createBufferSettings())
s.setBackground(self.createBackgroundSettings())
s.setShadow(self.createShadowSettings())
font = getTestFont()
font.setKerning(False)
s.setFont(font)
s.setNamedStyle('Roman')
s.setSize(5)
s.setSizeUnit(QgsUnitTypes.RenderPoints)
s.setSizeMapUnitScale(QgsMapUnitScale(1, 2))
s.setColor(QColor(255, 0, 0))
s.setOpacity(0.5)
s.setBlendMode(QPainter.CompositionMode_Difference)
s.setLineHeight(5)
s.setOrientation(QgsTextFormat.VerticalOrientation)
s.setPreviewBackgroundColor(QColor(100, 150, 200))
return s
def grid_labeler(self, coord_base_x, coord_base_y, px, py, u, t, dx, dy,
vAlign, hAlign, desc, fSize, fontType, expression_str,
trLLUTM, trUTMLL, llcolor, utmcheck, scale):
if utmcheck:
pgrid = QgsPoint(coord_base_x + px * u, coord_base_y + py * t)
pgrid.transform(trLLUTM)
pgrid = QgsPoint(pgrid.x() + dx, pgrid.y() + dy)
else:
pgrid = QgsPoint(coord_base_x + px * u + dx,
coord_base_y + py * t + dy)
#Label Format Settings
settings = QgsPalLayerSettings()
settings.Placement = QgsPalLayerSettings.Free
settings.isExpression = True
textprop = QgsTextFormat()
textprop.setColor(llcolor)
textprop.setSizeUnit(1)
textprop.setSize(fSize * scale * 1.324)
textprop.setFont(QFont(fontType))
textprop.setLineHeight(1)
settings.setFormat(textprop)
settings.fieldName = expression_str
#Label Name and Position
datadefined = QgsPropertyCollection()
datadefined.setProperty(9, pgrid.x())
datadefined.setProperty(10, pgrid.y())
if not (hAlign == ''):
datadefined.setProperty(11, hAlign)
if not (vAlign == ''):
datadefined.setProperty(12, vAlign)
datadefined.setProperty(20, 1)
#Creating and Activating Labeling Rule
settings.setDataDefinedProperties(datadefined)
rule = QgsRuleBasedLabeling.Rule(settings)
rule.setDescription(desc)
rule.setActive(True)
return rule
def grid_labeler(self, coord_base_x, coord_base_y, px, py, u, t, dx, dy,
desc, fSize, fontType, expression_str, trLLUTM, llcolor,
layer_bound, trUTMLL):
pgrid = QgsPoint(coord_base_x + px * u, coord_base_y + py * t)
pgrid.transform(trLLUTM)
pgrid = QgsPoint(pgrid.x() + dx, pgrid.y() + dy)
if layer_bound.crs().isGeographic() == True:
pgrid.transform(trUTMLL)
#Label Format Settings
settings = QgsPalLayerSettings()
settings.placement = 1
settings.isExpression = True
textprop = QgsTextFormat()
textprop.setColor(llcolor)
textprop.setSizeUnit(4)
textprop.setSize(fSize * 2.8346)
textprop.setFont(QFont(fontType))
textprop.setLineHeight(1)
settings.setFormat(textprop)
settings.fieldName = expression_str
#Label Position
settings.geometryGeneratorEnabled = True
settings.geometryGenerator = ("make_point({}, {})".format(
pgrid.x(), pgrid.y()))
datadefined = QgsPropertyCollection()
datadefined.property(20).setExpressionString('True')
datadefined.property(20).setActive(True)
datadefined.property(15).setExpressionString('True')
datadefined.property(15).setActive(True)
datadefined.property(77).setExpressionString('2')
datadefined.property(77).setActive(True)
#Creating and Activating Labeling Rule
settings.setDataDefinedProperties(datadefined)
rule = QgsRuleBasedLabeling.Rule(settings)
rule.setDescription(desc)
rule.setActive(True)
return rule
def text_symbol_to_qgstextformat(
text_symbol: TextSymbol, # pylint: disable=too-many-locals,too-many-branches,too-many-statements
context,
reference_scale=None):
"""
Converts TextSymbol to QgsTextFormat
"""
text_format = QgsTextFormat()
font = TextSymbolConverter.std_font_to_qfont(text_symbol.font)
if context.unsupported_object_callback and font.family(
) not in QFontDatabase().families():
if isinstance(text_symbol, TextSymbol):
context.unsupported_object_callback(
'Font {} not available on system'.format(
text_symbol.font.font_name))
if Qgis.QGIS_VERSION_INT >= 30900:
font.setKerning(text_symbol.kerning)
conversion_factor = reference_scale * 0.000352778 if reference_scale is not None else 1
# why 5.55? why not! It's based on rendering match with ArcGIS -- there's no documentation
# about what the ArcGIS character spacing value actually means!
font.setLetterSpacing(
QFont.AbsoluteSpacing,
conversion_factor * (text_symbol.character_spacing or 0) / 5.55)
# may need tweaking
font.setWordSpacing(conversion_factor *
((text_symbol.word_spacing / 100) - 1))
if isinstance(text_symbol, TextSymbol):
font.setCapitalization(
TextSymbolConverter.CAPITALIZATION_MAP[text_symbol.case])
if Qgis.QGIS_VERSION_INT >= 31600:
text_format.setCapitalization(
TextSymbolConverter.TEXT_CAPITALIZATION_MAP[
text_symbol.case])
if isinstance(text_symbol, TextSymbol):
text_format.setLineHeight(1 + text_symbol.leading /
text_symbol.font_size)
text_format.setFont(font)
if reference_scale is None:
text_format.setSize(text_symbol.font_size)
text_format.setSizeUnit(QgsUnitTypes.RenderPoints)
else:
text_format.setSize(text_symbol.font_size * reference_scale *
0.000352778)
# todo - use normal map units
text_format.setSizeUnit(QgsUnitTypes.RenderMetersInMapUnits)
if Qgis.QGIS_VERSION_INT >= 32300 and text_symbol.character_width != 100:
text_format.setStretchFactor(text_symbol.character_width)
opacity = 1
if isinstance(text_symbol, TextSymbol):
color = ColorConverter.color_to_qcolor(text_symbol.color)
# need to move opacity setting from color to dedicated setter
opacity = color.alphaF()
color.setAlpha(255)
text_format.setColor(color)
text_format.setOpacity(opacity)
# shadow
if text_symbol.shadow_x_offset or text_symbol.shadow_y_offset:
shadow = QgsTextShadowSettings()
shadow.setEnabled(True)
shadow_color = ColorConverter.color_to_qcolor(
text_symbol.shadow_color)
# need to move opacity setting from color to dedicated setter
shadow_opacity = shadow_color.alphaF()
shadow_color.setAlpha(255)
shadow.setColor(shadow_color)
shadow.setOpacity(shadow_opacity)
shadow_angle = math.degrees(
math.atan2(text_symbol.shadow_y_offset,
text_symbol.shadow_x_offset))
shadow_dist = math.sqrt(text_symbol.shadow_x_offset**2 +
text_symbol.shadow_y_offset**2)
shadow.setOffsetAngle(int(round(90 - shadow_angle)))
if reference_scale is None:
shadow.setOffsetDistance(context.convert_size(shadow_dist))
shadow.setOffsetUnit(context.units)
else:
shadow.setOffsetDistance(shadow_dist * reference_scale *
0.000352778)
shadow.setOffsetUnit(QgsUnitTypes.RenderMetersInMapUnits)
shadow.setBlendMode(QPainter.CompositionMode_SourceOver)
# arc has no option for blurring shadows - we convert with a slight blur (because it's UGLY if we don't,
# but use a lower blur then the default to give a somewhat closer match)
shadow.setBlurRadius(0.5)
text_format.setShadow(shadow)
# halo
buffer = QgsTextBufferSettings()
if isinstance(text_symbol, TextSymbol):
buffer.setEnabled(text_symbol.halo_enabled)
else:
buffer.setEnabled(bool(text_symbol.halo_symbol))
if reference_scale is None:
buffer.setSize(context.convert_size(text_symbol.halo_size))
buffer.setSizeUnit(context.units)
else:
buffer.setSize(2 * text_symbol.halo_size * reference_scale *
0.000352778)
buffer.setSizeUnit(QgsUnitTypes.RenderMetersInMapUnits)
# QGIS has no option for halo symbols. Instead, we just get the color from the symbol
if text_symbol.halo_symbol:
from .symbols import SymbolConverter # pylint: disable=import-outside-toplevel,cyclic-import
halo_symbol = SymbolConverter.Symbol_to_QgsSymbol(
text_symbol.halo_symbol, context)
if halo_symbol:
buffer_color = halo_symbol.color()
# need to move opacity setting from color to dedicated setter
buffer_opacity = buffer_color.alphaF()
buffer_color.setAlpha(255)
buffer.setColor(buffer_color)
# in ArcMap buffer inherits text opacity, shadow does not
buffer.setOpacity(buffer_opacity * opacity)
text_format.setBuffer(buffer)
if text_symbol.background_symbol:
background = TextSymbolConverter.convert_background_symbol(
text_symbol.background_symbol, context, reference_scale)
if background:
text_format.setBackground(background)
if isinstance(text_symbol, TextSymbol):
if text_symbol.cjk_orientation:
if Qgis.QGIS_VERSION_INT < 30900:
if context.unsupported_object_callback:
context.unsupported_object_callback(
'Vertical text orientation requires QGIS 3.10 or later',
level=Context.WARNING)
else:
raise NotImplementedException(
'Vertical text orientation requires QGIS 3.10 or later'
)
else:
text_format.setOrientation(
QgsTextFormat.VerticalOrientation)
else:
pass
return text_format
