Commit Graph

7 Commits

Author SHA1 Message Date
oleibman b3de003aa5 Reorganize Samples
The samples have become unwieldy when running them from a browser. In particular, the drop-down lists are fixed size with no scrolling, and many of them are now just too large. I have moved all the Calculation samples up a level, and broken several categories (Basic, Chart, DateTime, Engineering, Financial, and Reader) into several pieces.

Convert-Online (now found in the Engineering category) had a number of different problems which are now resolved. It is the only member with any significant code change.
2024-02-03 07:25:29 -08:00
MarkBaker d3a1b43822 Improve web-rendering of Reader Examples by displaying the loaded worksheet grids 2023-04-13 10:35:38 +02:00
oleibman e7a0e8092d Limited Support for Form Controls V2 (ListBox, Buttons, etc.) (#3130)
* WIP Limited Support for Form Controls V2 (ListBox, Buttons, etc.)

This is a replacement for draft PR #2455 and draft PR #3127. There is some useful commentary in those PRs which I have mostly, but not entirely, duplicated below. Fix #2396. Fix #1770. Fix #2388.

A related problem is that the vml files used for the form controls sometimes contain invalid xml. Fix #3125 (rejected previous PR #1181 as too risky, issue was also reported as #170). Vml file should be valid Xml, but Excel can generate unclosed `<br>` tags, preventing Xlsx reader from reading file correctly. I believe a very narrowly targeted fix, changing `<br>` to `<br/>`, and only when reading vml files, probably mitigates the risk. The sample file formscomments.xlsx which is part of this change shows this problem with `Button 1` on sheet `Forms`; the spreadsheet was created with Excel 365, so the problem is not restricted to Excel 2013 as originally reported. A comment on PR 3127 indicates that other tags might be involved, but, without a file demonstrating that, I will restrict this change to br tags for now.

I am starting this out in draft status, and will probably leave it that way for some time. I'm not sure where we want to go with this. It fixes some problems, but in a limited manner, and creates some others. I'm not sure the pain of the others is balanced considering the limitations of the fix. If enough interest is generated as a result of this ticket being out there, we can proceed; if not, it probably isn't worth it.

This fix allows form control elements to be read in and written out. It does not allow you to add such elements, nor even to locate them or determine their properties (so you can't modify or delete them). Although it handles reading and writing of sheets containing both form controls and comments, it will probably create a corrupt spreadsheet if you try adding a new comment to a sheet with form controls - probably quite difficult to solve. Cloning the sheet probably won't work either - probably easier than the other. It is conceivable that we want to add a new property to the Xlsx Reader which turns the reading of form elements on or off (default=off), so that negative effects will be limited to those who have explictly opted in. The change in its current form does not implement such a property.

Because of its limitations, the change isn't really testable. As in some other recent installs, I have added a sample to demonstrate that it works correctly.

As it turns out, if we have a worksheet which contains both form controls and comments (see formscomments.xlsx which is part of this PR), PhpSpreadsheet already creates a corrupt file when it tries to load and save the spreadsheet with such a worksheet. With this change, the file is saved without corruption. This tilts things in favor of proceeding. I'm still not ready, but this will be an important consideration.

A sample file for issue #2621 illustrated a problem with shape files. Since they are involved here, I took a look at how the sample worked with this code. In master, and with this change, a corrupt file results. Fixing that is probably easier than the general problem of handling shape files, but it's an argument against moving this forward until the corruption problem can be addressed.

Fix #2661. A template including checkboxes was leading to file corruption solved by this PR. Another argument for moving forward.

* Improved Sample File, and Documentation

Add more realistic worksheet to spreadsheet. Document new feature, adding caveats to how it can be used.
2022-12-28 08:01:53 -08:00
oleibman ea74c96e98 Name Clashes Between Parsed and Unparsed Drawings (#2423)
* Name Clashes Between Parsed and Unparsed Drawings

This is at least a partial fix for #2396 and #1767 (which has been around for a long time). PhpSpreadsheet renames drawing XML files when it reads them from a spreadsheet. However, when it writes unparsed drawing files, it uses the original names, which can result in a clash with the renamed files. The solution in this PR is to write the unparsed files using the same renaming convention as the the others.

This is an incredibly simple fix, basically a one-line change, for such a long-lived problem. It is conceivable that this PR breaks a more sophisticated file than I have come across, e.g. with multiple unparsed files associated with a single worksheet. However, this PR does fix at least part of the problem for both issues, and causes no regression issues. The changed code was covered in only 2 tests - Reader/XlsxTest testLoadSaveWithEmptyDrawings and Writer/Xlsx/UnparsedDataTest testLoadSaveXlsxWithUnparsedData.

2396 is covered by a new test Unparsed2396Test. I had trouble figuring out what to test for 1767. Since it is a problem that becomes evident only when the output file is opened in Excel, I added a new sample to cover it.

* Sloppy Errors

I neglected to run php-cs-fixer and phpstan, and it bit me.

* Scrutinizer

It's not as good as Phpstan at recognizing problems that can't happen due to previous assertions.

* Scrutinizer Again

It can be really stupid sometimes.
2021-12-09 23:37:15 -08:00
Owen Leibman 1a0aab1a4f Improve Coverage in src/PhpSpreadsheet
There are no changes to code. Additional tests are added,
so that the following 6 items now have 100% test coverage:
- Comment
- DefinedName
- DocumentGenerator
- IOFactory
- NamedFormula
- NamedRange
2020-11-27 06:50:01 -08:00
Mark Baker c9dc1e6130 String value binder (#901)
* Document calculation caching; and how to disable it and how to flush the cache

* Quoted text for string values beginning with `=`, so that they are still treated as strings and not as formulae

* Warning about assigning cells to variables

* Further warning about assigning cells to variables

* getCell() with a second argument

* Added String Value Binder, and a Reader example demonstrating how to use it

* Ensure value is a string before binding

* Sample file for String Value Binder

* PHPCS moaning about order or use statements

* Order of annotations, that PHPStorm determined, isn't what phpcs says it should be
2019-02-23 18:40:07 +01:00
Adrien Crivelli 50a0ec58af Merge all examples together
Closes #17
2017-10-01 17:48:59 +09:00