For some reason PropertyEnumeration in our type information system was
said to be inherited from App::PropertyInteger, wich is not the case.
This commit fixes that mistake.
The code for setting the value of a Label property would do a quick return if the new label was equal to the current one, but otherwise the proposed new label might be modified to make it unique. If the modified new value were equal to the current value, a Change notification would still be generated. This no longer occurs.
As described in Issue 16849, the existing Tools::getUniqueName method
requires calling code to form a vector of existing names to be avoided.
This leads to poor performance both in the O(n) cost of building such a
vector and also getUniqueName's O(n) algorithm for actually generating
the unique name (where 'n' is the number of pre-existing names).
This has particularly noticeable cost in documents with large numbers
of DocumentObjects because generating both Names and Labels for each new
object incurs this cost. During an operation such as importing this
results in an O(n^2) time spent generating names.
The other major cost is in the saving of the temporary backup file,
which uses name generation for the "files" embedded in the Zip file.
Documents can easily need several such "files" for each object in the
document.
This update includes the following changes to use the newly-added
UniqueNameManager as a replacement for the old Tools::getUniqueName
method and deletes the latter to remove any temptation to use it as
its usage model breeds inefficiency:
Eliminate Tools::getUniqueName, its local functions, and its unit tests.
Make DocumentObject naming use the new UniqueNameManager class.
Make DocumentObject Label naming use the new UniqueNameManager class.
This needs to monitor DocumentObject Labels for changes since this
property is not read-only. The special handling for the Label
property, which includes optionally forcing uniqueness and updating
links in referencing objects, has been mostly moved from
PropertyString to DocumentObject.
Add Document::containsObject(DocumentObject*) for a definitive
test of an object being in a Document. This is needed because
DocumentObjects can be in a sort of limbo (e.g. when they are in the
Undo/Redo lists) where they have a parent linkage to the Document but
should not participate in Label collision checks.
Rename Document.getStandardObjectName to getStandardObjectLabel
to better represent what it does.
Use new UniqueNameManager for Writer internal filenames within the zip
file.
Eliminate unneeded Reader::FileNames collection. The file names
already exist in the FileList collection elements. The only existing
use for the FileNames collection was to determine if there were any
files at all, and with FileList and FileNames being parallel
vectors, they both had the same length so FileList could be used
for this test..
Use UniqueNameManager for document names and labels. This uses ad hoc
UniqueNameManager objects created on the spot on the assumption that
document creation is relatively rare and there are few documents, so
although the cost is O(n), n itself is small.
Use an ad hoc UniqueNameManager to name new DymanicProperty entries.
This is only done if a property of the proposed name already exists,
since such a check is more-or-less O(log(n)), almost never finds a
collision, and avoids the O(n) building of the UniqueNameManager.
If there is a collision an ad-hoc UniqueNameManager is built
and discarded after use.
The property management classes have a bit of a mess of methods
including several to populate various collection types with all
existing properties. Rather than introducing yet another such
collection-specific method to fill a UniqueNameManager, a
visitProperties method was added which calls a passed function for
each property. The existing code (e.g. getPropertyMap) would be
simpler if they all used this but the cost of calling a lambda
for each property must be considered. It would clarify the semantics
of these methods, which have a bit of variance in which properties
populate the passed collection, e.g. when there are duplicate names..
Ideally the PropertyContainer class would keep a central directory of
all properties ("static", Dynamic, and exposed by ExtensionContainer and
other derivations) and a permanent UniqueNameManager. However the
Property management is a bit of a mess making such a change a project
unto itself.
Every basic data type is stored in Base module, color is standing out as
one that does not. Moving it to Base opens possibilities to integrate it
better with the rest of FreeCAD.
* Address the poor performance of the existing unique-name generation
As described in Issue 16849, the existing Tools::getUniqueName method
requires calling code to form a vector of existing names to be avoided.
This leads to poor performance both in the O(n) cost of building such a
vector and also getUniqueName's O(n) algorithm for actually generating
the unique name (where 'n' is the number of pre-existing names).
This has particularly noticeable cost in documents with large numbers
of DocumentObjects because generating both Names and Labels for each new
object incurs this cost. During an operation such as importing this
results in an O(n^2) time spent generating names.
The other major cost is in the saving of the temporary backup file,
which uses name generation for the "files" embedded in the Zip file.
Documents can easily need several such "files" for each object in the
document.
This update includes the following changes:
Create UniqueNameManager to keep a list of existing names organized in
a manner that eases unique-name generation. This class essentially acts
as a set of names, with the ability to add and remove names and check if
a name is already there, with the added ability to take a prototype name
and generate a unique form for it which is not already in the set.
Eliminate Tools::getUniqueName
Make DocumentObject naming use the new UniqueNameManager class
Make DocumentObject Label naming use the new UniqueNameManager class.
Labels are not always unique; unique labels are generated if the
settings at the time request it (and other conditions). Because of this
the Label management requires additionally keeping a map of counts
for labels which already exist more than once.
These collections are maintained via notifications of value changes on
the Label properties of the objects in the document.
Add Document::containsObject(DocumentObject*) for a definitive
test of an object being in a Document. This is needed because
DocumentObjects can be in a sort of limbo (e.g. when they are in the
Undo/Redo lists) where they have a parent linkage to the Document but
should not participate in Label collision checks.
Rename Document.getStandardObjectName to getStandardObjectLabel
to better represent what it does.
Use new UniqueNameManager for Writer internal filenames within the zip
file.
Eliminate unneeded Reader::FileNames collection. The file names
already exist in the FileList collection elements. The only existing
use for the FileNames collection was to determine if there were any
files at all, and with FileList and FileNames being parallel
vectors, they both had the same length so FileList could be used
for this test..
Use UniqueNameManager for document names and labels. This uses ad hoc
UniqueNameManager objects created on the spot on the assumption that
document creation is relatively rare and there are few documents, so
although the cost is O(n), n itself is small.
Use an ad hoc UniqueNameManager to name new DymanicProperty entries.
This is only done if a property of the proposed name already exists,
since such a check is more-or-less O(log(n)), almost never finds a
collision, and avoids the O(n) building of the UniqueNameManager.
If there is a collision an ad-hoc UniqueNameManager is built
and discarded after use.
The property management classes have a bit of a mess of methods
including several to populate various collection types with all
existing properties. Rather than introducing yet another such
collection-specific method to fill a UniqueNameManager, a
visitProperties method was added which calls a passed function for
each property. The existing code would be simpler if existing
fill-container methods all used this.
Ideally the PropertyContainer class would keep a central directory of
all properties ("static", Dynamic, and exposed by ExtensionContainer and
other derivations) and a permanent UniqueNameManager. However the
Property management is a bit of a mess making such a change a project
unto itself.
The unit tests for Tools:getUniqueName have been changed to test
UniqueNameManager.makeUniqueName instead.
This revealed a small regression insofar as passing a prototype name
like "xyz1234" to the old code would yield "xyz1235" whether or
not "xyz1234" already existed, while the new code will return the next
name above the currently-highest name on the "xyz" model, which could
be "xyz" or "xyz1".
* Correct wrong case on include path
* Implement suggested code changes
Also change the semantics of visitProperties to not have any short-circuit return
* Remove reference through undefined iterator
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Fix up some comments for DOxygen
---------
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Migrate the transparency from the DiffuseColor alpha channel to the
transparency color attribute. This allows the alpha channel to be
used as designed
fixes#14938
Improves the use of the ShapeAppearance property for the Part workbench.
removes DiffuseColor property
adds Python compatibility using custom attributes
transitions DiffuseColor to ShapeAppearance on open
Improved UI elements for setting object appearance, and appearance per face
Lays the foundation for future texture support
In v0.22 a version number -1 is added to the material files to distinguish between old and new project file.
But v0.21 doesn't know about this version number and interprets it as number of elements instead.
Because this value is assigned to an unsigned type the value becomes 2**32 - 1. Now trying to create a container of this size requires > 280 GB
of RAM. On most systems FreeCAD new handler will jump in and raises a memory exception to stop the allocation. But an other systems with
plenty of RAM it's tried to allocate the memory and then may crash at some point.
This PR fixes this regression. It puts the version number to the MaterialList XML element as an optional attribute.
With this change FreeCAD v0.22 is still able to load projects that have been created prior to this change.
Additionally FreeCAD v0.21 can again load project files without crashing.
For more details see: https://forum.freecad.org/viewtopic.php?t=87268
When synchronizing the Transparency property with the transparency value of the ShapeAppearance property then do not convert between float and
double as otherwise some strange rounding issues can occur.
Example: Set the Transparency property of an object to 35 in the Property Editor. After leaving the editor the value may switch to 34.
Uses new material system for appearance
Each feature object now has a property called ShapeMaterial that
describes its physical properties. If it has a shape, it has a
material.
The ShapeColor attribute is replaced by a ShapeAppearance attribute.
This is a material list that describes all appearance properties, not
just diffuse color. As a list in can be used for all elements of a
shape, such as edges and faces.
A new widget is provided to allow the user to select materials in a
consistent fashion. It can also launch the material editor with its
more advanced capabilities.
This patch substitutes by isAttachedToDocument() (almost) everywhere where
getNameInDocument() is used for this purpose.
The very few places not touched by this patch demand a (just a little) less trivial change.
When we change the returning type of getNameInDocument() to std::string,
those places will be easily found, because they shall generate a compiler error
(converting std::string to bool).
Rationale:
The fact that getNameInDocument() return nullptr to indicate
that the object is not attached to a document is responsible for lots of bugs
where the developer does not check for "nullptr".
The idea is to eliminate all those uses of getNameInDocument() and, in the near future,
make getNameInDocument() return always a valid std::string.
=====================================================================
Issue #11183
- The message is not useful for the user in terms of content.
- The user can do nothing about it, but move on.
