QFlags created from enum classes aren't automatically converted
from an int value passed by Python code, so we need to create
compatibility functions for the older variants which accept
plain ints
should use symbol levels whenever that symbol is used by the renderer
Not exposed to users -- only settable via API, but IS saved in the
symbol's XML definition and restored when loading a symbol from XML.
project are not available when loading that project on a system
without the required fonts installed
Currently shown for any QgsTextForamt or font marker symbol layer
restored when opening the project
- Add enums to qgis.h instead of qgscoreenums, so that they belong to
a Qgis namespace
- Split up the various symbol headers into multiple files so that we
can fine-tune their inclusion and forward declare more readily, speeding
up recompilation
- Move QgsSymbol enums to qgis
Many MapInfo line symbols don't translate well into OGR styles, so
in order to improve the quality of the conversion this commit introduces
a new QgsMapInfoSymbolConverter class which contains utility functions
for converting MapInfo symbols by ID to their QGIS equivalent.
Implemented for line symbols only for now.
use this as the text format for newly created layer labels
Instead of defaulting to a random font, this gives us a mechanism
to supply a better default label font to users via the default
style database. And users can always modify this "default" text
format if they'd like to change the default font!
For now this is the underlying code logic changes only -- we
don't yet include a 'Default' text format in the default style database
to take advantage of this functionality.
layers by a preset amount
This allows for the line rendering to trim off the first x mm
and last y mm from the actual line string when drawing the line.
It can be used eg when creating complex symbols where a line layer
should not overlap marker symbol layers placed at the start
and end of the line.
The start/end trim distance supports a range of units, including
percentage of the overall line length, and can be data defined
for extra control.
Should return true for feature renderers which require embedded
feature symbology. The corresponding feature request flag will
be set on the iterator used for the renderer will rendering vector
layers.
Returns true if the symbol layer rendering can cause visible
artifacts across a single feature when the feature is rendered
as a series of adjacent map tiles each containing a portion
of the feature's geometry.
This depends on the symbol layer derived class itself - eg
a simple solid color fill won't show any artifacts, but a shapeburst
fill WILL.
