there is an issue in SIP when mixing non-scoped and scoped enums in the same class
see https://www.riverbankcomputing.com/hg/sip/rev/ccc4eda868de
and if switching all to scoped enum, there is a conversion issue in slot
for MessageLevel (whhen connection QgsMessageLog::messageReceived)
This is the implementation of the new DB connections API (grant proposal 2019).
Summary
The new API makes it available to QGIS core a new interface for provider connections and will allow to:
replace the provider specific QgsSettings management in QGIS4 (save/load connections from the settings) NOT IN SCOPE FOR NOW.
provide a unified API for common operations on DB connections:
executeSql and get the results
list tables names and properties and schemas
create a new vector table (no rasters for now)
create/rename/drop schemas and tables
vacuum
....
Adds a new visitor pattern API for creation of visitors which visit
all the style entities (symbols, color ramps, text formats, and
label styles) associated with different objects. Can be used on a
renderer, map layer, or project wide level.
E.g. on a project wide level, allows collection of ALL the style
symbols/color ramps/text settings inside a project, including those
in layouts or annotations!
We can use this when restoring the layer, if the uri turns out
to be invalid at that stage (e.g. a file has moved). By storing
and falling back to the last known wkb type, we avoid unnecessarily
discarding the existing layer renderer, and can still show the
expected layer type in the layer tree.
* make QgsWkbTypes a Q_GADGET and declare GeometryType as Q_ENUM
* include QObject
* remove extra include
* move QgsWkbTypes to moc headers
* run sip_include
not working yet, just set the menu entries
QgsMapLayerStyle::StyleCategory has moved to QgsMapLayer to avoid making QgsMapLayerStyle a QObject and they are mostly used in QgsMapLayer
* create QgsMapLayer::LayerFlags for Searchable, Identifiable and Removable
this brings back the information previously saved in the project node back to the layer node
this will allow to embed this information in layer styles
* skip unexisting flag node to avoid setting wrong value for flag
* mark QgsProject::(set)requiredLayers as deprecated
* better API docs
* use new API in current code
* more docs and more old API fixes
* fix bad conversion
* more old API fix
* add missing SIP_OUT
* s/testFlags/testFlag
* fix var name
* adapt project test to test flags
* remove debug calls
* fixeS
