Uses new gradient editor widget and color controls for easier
manipulation of gradients. Also adds an interactive plot
for modifying gradient stops via the color HSV or RGB values.
Fix#8383
Sponsored by North Road
Supports:
- drag to move color stops
- double clicking to add a new stop
- pressing delete will remove the selected stop
- pressing arrow keys will move the selected stop, shift+arrow= larger
move
- drag and drop a color onto the widget to add a new stop
Sponsored by North Road
Instead of setting the provider's subsetString to fetch joined
features, use a feature request with FilterExpression instead.
(Setting the subsetString results in a canvas refresh.)
Performance should be similar (if expression compilation is
enabled) and this also has the advantage of avoiding provider-
specific behaviour (eg case insensitive matching).
(fix#14800)
Move the QgsExpression::Interval class out to its own QgsInterval
class, extend with new methods and add tests
Add a typedef to keep API compatibility for 2.16
This change makes the current atlas feature (and additionally all
attributes of related child features) available to the source of
a composer HTML item, allowing the item to dynamically adjust
its rendered HTML in response to the feature's properties. An
example use case is dynamically populating a HTML table with
all the attributes of related child features for the atlas
feature.
To use this, the HTML source must implement a "setFeature(feature)"
JavaScript function. This function is called whenever the atlas
feature changes, and is passed the atlas feature (+related attributes)
as a GeoJSON Feature.
Sponsored by Kanton of Zug, Switzerland
The previous setting for include WKT when copying features has been
replaced with a choice of copying features as "Plain text, attributes
only", "Plain text, WKT geometry" and a new "GeoJSON" option.
When set to "GeoJSON", copying features in QGIS will place a GeoJSON
text representation of the features on the clipboard for easy
pasting into other applications/javascript code.
Sponsored by North Road
