Filter lines in Table Browser had lost conditional format entries in their
context menu. This restores the original behaviour.
And the name of the member boolean is changed to avoid double negations.
This adds a new field to the toolbar of the Browse Data tab which allows
filtering the current table just as the other filters. With the new
field however all columns of a row are checked and only one has to
match. This provides in effect a "global" filter which works on all
columns instead of just one.
See issues #1608 and #1662.
A new dialog for editing conditional formats that can be invoked from the
filter line editor or from the data browser contextual menus. The dialog
allows adding and removing conditional formats, changing the priority order
and editing foreground colour, background colour and filter condition.
The conditional formats have been expanded to allow defining the foreground
colour. By default is the setting configured by user.
This is a continuation of the functionality introduced in PR #1503.
This adds support for the REGEXP operator using the syntax /regexp/ in the
filter line boxes.
A new helper option for a not-containing filter is added using this new
syntax. This could be simplified using a NOT LIKE filter, but we don't
currently support that.
The "Use in Filter Expression > Containing" option escapes a possible
slash in the beginning, so it is not interpreted as a regexp filter.
See issue #1522
After setting a filter, the user can select from the context menu in the
filter line a new option "Use for Conditional Format", that assigns
automatically a colour to the background of cells fulfilling that
condition.
The formatting is preserved after the user has removed the filter. Several
conditional formats can be successively added to a column using different
filters.
The conditional formats of a column can be cleared when the filter is empty
selecting "Clear All Conditional Formats" from the filter line context
menu.
The conditional formats are saved and loaded in project files as other
browse table settings.
A new class Palette has been added for reusing the automatic colour
assignment of the Plot Dock. It takes into account the theme kind of the
application (dark, light) for the colour selection.
A new class CondFormat for using the conditional formatting settings from
several classes. The conversion of a filter string from our format to an
SQL condition has been moved here for reuse in filters and conditional
formatting.
Whether the conditional format applies is resolved by SQLite, so filters
and conditional formats give the same exact results.
Code for getting a pragma value has been reused for getting the condition
result, and consequently renamed to selectSingleCell.
Possible future improvement:
- New dialog for editing the conditional formatting (at least colour and
application order of conditions, but maybe too: adding new conditions and
editing the condition itself).
Added contextual menus in filter line box and cells for assisting in using
filters and for discovering existing filters.
The menu in the filter line adds "What's This" option and helper options
that add the operator and a selected placeholder (?) for easy editing.
Special options for NULL and empty strings are also added. Those work
directly.
The menu in the cells works as the current "Use as Filter" but for
different operators. In this case, only the range operator is incomplete.
Currently, not all the operators make sense for strings because we take
them as LIKE filters. At least the Not Equal filter (<>) should work, but
the other would also make sense. This will be addressed in future commits.
When changing between the filter line edits in the Browse Data tab, make
sure to only re-run the SQL query if the value of the filter line edits
have actually changed.
See issue #1187.
When changing a filter value delay the application of the new value on
the table for a couple of milliseconds. This makes the filter process
much smoother for fast typing users working on large tables.
See issue #415.
