Nyall Dawson
7753ba11f7
Model child algorithms store a copy of the algorithm itself
...
Instead of always retrieving it from the registry
2017-07-09 17:17:29 +10:00
Nyall Dawson
cd6e7d78cf
Add method to processing registry to create a new instance of an algorithm directly
2017-07-09 17:14:45 +10:00
Nyall Dawson
fedf88ea3d
Remove redundant sip file
2017-07-08 20:53:02 +10:00
Nyall Dawson
f49b603443
Split QgsProcessingModelAlgorithm into separate components
...
The cpp/h file was getting too large, so split off the individual
subcomponents into their own h/cpp files to keep code
maintainable.
2017-07-08 20:49:17 +10:00
Nyall Dawson
9d04f87249
Rename "output" style parameters for clarity
...
The previous naming was too easily confused with processing outputs.
Rename them to QgsProcessingParameterFileDestination, etc... to
make it clearer what they are used for.
2017-07-08 20:49:17 +10:00
Nyall Dawson
f82b41e001
Move an enum to new QgsProcessing class
2017-07-08 20:49:17 +10:00
Nyall Dawson
febf0a0e6e
Rename method to more generic name - it's usable by vector layer outputs too
2017-07-08 20:49:17 +10:00
Nyall Dawson
d443bb3cbe
Expose compatible vector layer parameter evaluation to QgsProcessingAlgorithm
2017-07-08 20:49:17 +10:00
Nyall Dawson
9e184feaed
Add method to evaluate parameters to compatible vector layers
...
of a specified type
2017-07-08 20:49:17 +10:00
Nyall Dawson
ac51ae106c
Add unit tests
2017-07-07 11:36:41 +10:00
Nyall Dawson
3ea70696f0
Add descriptions for model algorithm variables
2017-07-07 11:35:31 +10:00
Nyall Dawson
534844f999
Add function to return variables available for child algorithms during
...
model execution
And use this function to determine in advance dependencies between
child algorithm parameters with expression based values and
which other child algorithms they depend upon.
2017-07-07 11:35:31 +10:00
Nyall Dawson
82ef7d2a89
Create specific expression context scope for child algorithms
...
Contains variables for model parameters, algorithm results for
other child algorithms which are not dependent on the
algorithm.
Allows removal of final pieces of ModelerAlgorithm code
2017-07-07 11:35:31 +10:00
Nyall Dawson
d8086e549d
Use c++ method for available sources
2017-07-07 11:35:31 +10:00
Nyall Dawson
17199c8ffd
Reimplement getAvailableValuesOfType in QgsProcessingModelAlgorithm
2017-07-07 11:35:31 +10:00
Nyall Dawson
3243a1a34c
Allow model child parameters to take values from an expression
...
The expression is evaluated just before the child algorithm is
executed, so can utilise results already calculated by other
children in the model through the use of expression context
functions
2017-07-07 11:34:17 +10:00
Nyall Dawson
2c91df4c12
Expand on docs
2017-07-07 10:14:51 +10:00
Nyall Dawson
70cc19687d
Add a method to take result layers (and ownership) from processing context
2017-07-07 09:28:20 +10:00
Nyall Dawson
3cbcd75d2f
Add equality operator for QgsProcessingFeatureSourceDefinition
2017-07-07 09:28:19 +10:00
Nyall Dawson
8a84e134cc
Algorithms don't have to be split to prepare/process/postProcess
...
Since it's safe to evaluate parameters in background threads
now, it's usually going to be ok to evaluate everything in
the processAlgorithm step.
This keeps the algorithm code as simple as possible, and will
make porting faster.
Note that the prepare/postProcess virtual methods still exist
and can be used when an algorithm MUST do setup/cleanup work
in the main thread.
2017-07-07 09:28:19 +10:00
Nyall Dawson
e1184cd69a
Make QgsProcessingAlgRunnerTask work correctly
...
It now safely can execute algorithms in background threads
without issues
2017-07-07 09:28:19 +10:00
Nyall Dawson
e5b156b86a
Make processing algorithms safe to run in threads
2017-07-07 09:28:19 +10:00
Nyall Dawson
5350483c90
Add method to take results from another processing context and
...
add to the current context
With appropriate note and tests to ensure that both the current
context and that which the results being taken from share the
same thread affinity
2017-07-07 09:28:19 +10:00
Nyall Dawson
d20c68d3f1
Add method to copy thread safe settings between processing contexts
2017-07-07 09:28:19 +10:00
Nyall Dawson
6c6f646291
Add methods to retrieve current thread affinity and push contexts
...
to another thread
With suitable assert in place to ensure that pushes are only
made when current thread == existing thread affinity
2017-07-07 09:27:35 +10:00
Nyall Dawson
e0c7daa2d8
Rename QgsProcessingAlgorithm::clone to ::create
...
Since it better describes what the function does. It returns a new
pristine copy of the algorithm, not a clone of its current state
2017-07-07 09:27:35 +10:00
Nyall Dawson
c2621b1275
Split algorithm execution into separate prepare/process/postProcess steps
...
The prepare and postProcess steps are designed to be run in main
thread only, while the process step can safely be run in a background
thread.
2017-07-07 09:26:17 +10:00
Nyall Dawson
0c6b19cd85
Improvements to QgsProcessingAlgRunnerTask
...
- take a clone of algs before running them. This avoids issues
if the algorithm is removed or edited while a background task
is running
- accept an optional existing feedback object
2017-07-07 09:26:17 +10:00
Nyall Dawson
9156933c9e
Add a pure virtual clone method for algorithms
...
This is required for safely executing the algorithm in a background
thread.
2017-07-07 09:26:17 +10:00
Nyall Dawson
bdaba00a01
Fix incorrect layer names used when loading result layers from models
2017-07-03 17:08:52 +10:00
Nyall Dawson
921939e4ec
Add method to determine whether dependencies exist between model parameters
2017-07-03 10:50:35 +10:00
Nyall Dawson
6483984d0b
Add method to retrieve dependent parameters for a parameter
2017-07-03 10:45:15 +10:00
Nyall Dawson
77588b9b61
Convert model child algorithm parameter sources to a list
...
So that multiple input type parameters are correctly handled,
allowing models with child algorithms like merge to correctly
use any combination of static layers/model inputs/child outputs
as their input parameter
2017-06-30 12:50:38 +10:00
Nyall Dawson
dbf21d1969
Reorder arguments in parameterAsSink to avoid requiring wkb type and crs
2017-06-27 08:33:13 +10:00
Nyall Dawson
60f80f9355
Mark QgsProcessingModelAlgorithm as non-stable API
...
We want to be able to extend this in future without any
stable API contract.
2017-06-27 08:33:13 +10:00
Nyall Dawson
0a32add69e
Port exporting model as python code to c++
2017-06-27 08:33:13 +10:00
Nyall Dawson
d16f117b6c
Port conversion to/from script code to c++
2017-06-27 08:33:13 +10:00
Nyall Dawson
178a415c9f
Port parameter conversion to script code to c++
2017-06-27 08:33:13 +10:00
Nyall Dawson
3fb1b4809d
Export QgsProcessingFeatureSource to Python
2017-06-26 12:44:26 +10:00
Nyall Dawson
5e7fbf44be
Make QgsAlgorithm::setProvider() public
...
Turns out there's valid use cases for calling this from outside
code.
2017-06-24 13:33:44 +10:00
Nyall Dawson
d667bf595f
Move iterator exception handling to c++
2017-06-24 08:15:06 +10:00
Nyall Dawson
a8b364e2e2
Port another member to c++
2017-06-24 07:36:46 +10:00
Nyall Dawson
10aeba2e72
Move more modelling code to c++
2017-06-24 07:36:13 +10:00
Nyall Dawson
e7f13f5bd8
Port model help code to c++
2017-06-24 07:36:07 +10:00
Nyall Dawson
24eb6fd780
Fix loss of output names in graphical modeler
2017-06-23 13:32:31 +10:00
Nyall Dawson
57f2c623ce
Move invalid geometry callback from Python to c++
2017-06-23 12:08:54 +10:00
Nyall Dawson
93b7c2809e
Report success or failure after running algs
...
And auto catch python exceptions and report failure of model
2017-06-23 12:08:54 +10:00
Nyall Dawson
a4f23fd1a4
Throw QgsProcessingException when a python exception occurs while running an alg
2017-06-23 12:08:54 +10:00
Nyall Dawson
76a9844949
Add folder output type
2017-06-22 18:21:33 +10:00
Nyall Dawson
f304828f59
Allow storing arbitrary metadata in parameter definitions
2017-06-22 18:18:51 +10:00
