Until now "map units" in snapping config dialog actually referred to layer units.
From now on, "map units" refer to project's CRS units. Where appropriate, it is
possible to choose "layer units" that refer to layer CRS units.
Projects from older versions of QGIS should be handled seamlessly (tolerances
in layer units will be still handled in layer units, not project units).
In API, QgsTolerance::MapUnits is deprecated as it is unclear to what units
it refers to (should be ProjectUnits, but actually it is LayerUnits)
Instead of calculating feature count (which may add extra overhead),
let's directly try to build index for layers. Only when a certain limit
of features is reached (currently 1 million), the indexing is cancelled
and layer is marked as non-indexable.
The functionality can be used in other renderers too, the only requirement
is that legend nodes need to specify their parent rule key via data().
Note that ayer tree model must have ShowLegendAsTree flag enabled, otherwise
the model will keep showing lists instead of trees.
Contains framework for multithreaded operations on QImages, and
numerous operations such as grayscale, hue/saturation, brightness/
contrast modification, flip, blur, distance transform, alpha
modification and color overlays.
The maintenance of three R-trees was too complicated, using a lot of memory
and the performance benefit was questionable :)
The approach with just one R-tree leads to much simpler code
Removed k-NN queries in the process - they were not used in QGIS code. They can be
reintroduced later, but there is not much use for them right now...
Also adds signals to the QgsMapLayerStyleManager so others can watch the changes
This code has been funded by Tuscany Region (Italy) - SITA (CIG: 6002233F59)
and commissioned to Gis3W s.a.s.
There is a new check box that allows the user to tell whether a map should
keep the layer styles (it will store the state when the check box is checked).
The stored layer styles keep a snapshot of each layer's configuration
instead of just keeping name of the style.
This solves issues with styles and visibility presets in composer which were
not completely compatible.
This code has been funded by Tuscany Region (Italy) - SITA (CIG: 6002233F59)
and commissioned to Gis3W s.a.s.
When layer set is locked in composer map, also the styles associated with layers are kept.
As a result, a composition can contain maps of the same layer just with different styles.
Map settings and map renderer jobs have been improved to support temporary override of layer's style.
It is possible to pass to map settings which layers should have overridden style and map jobs
will temporarily replace the style (just for the rendering).
- style manager is always enabled (client code does not need to distinguish between enabled/disabled state)
- layers currently active style is stored only in QgsMapLayer - in style manager it has entry with no data (avoids duplication of data)
This also solves issues with visibility presets and styles when some presets do not have stored style
The old behavior was to render it at the currently visibleExtent based on the
map canvas. The job may however have been scheduled for a different extent and
therefore rendered at an improper location.
