Copy from Xls(x) to Html/Pdf Loses Drawings #2788
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Drawings in an Xlsx file are stored in such a way that Php can read their contents using the `zip:` protocol. This does not, however, work when the file is read by PhpSpreadsheet and then saved as Html or Pdf, since the browser will not recognize that protocol even if the file is available. Such drawings need to be saved in the html as embedded images in order for the copy to display them properly. This is true even when the writer is set to not embed images (default). An additional problem arises when an Html file with an embedded image is read, because `Worksheet\Drawing::setPath` attempts to validate the path, which it cannot do for the `data:image` Url which embedded images use. And yet another problem. Writer/Html writes out a MemoryDrawing as a png using the imagepng function; but then declares it as jpeg in the Html. This is now corrected. And a fourth problem. Writer/Html ignores the last row if it contains nothing but a Memory Drawing, which can be true when copying an Xls file. These changes are testable (it's how I discovered the second part of this parlay). I think it is also useful to add a sample to see the results of this type of copy.
MarkBaker
added a commit
that referenced
this pull request
Jul 9, 2022
Note that this will be the last 1.x branch release before the 2.x release. We will maintain both branches in parallel for a time; but users are requested to update to version 2.0 once that is fully available. ### Added - Added `removeComment()` method for Worksheet [PR #2875](https://github.com/PHPOffice/PhpSpreadsheet/pull/2875/files) - Add point size option for scatter charts [Issue #2298](#2298) [PR #2801](#2801) - Basic support for Xlsx reading/writing Chart Sheets [PR #2830](#2830) Note that a ChartSheet is still only written as a normal Worksheet containing a single chart, not as an actual ChartSheet. - Added Worksheet visibility in Ods Reader [PR #2851](#2851) and Gnumeric Reader [PR #2853](#2853) - Added Worksheet visibility in Ods Writer [PR #2850](#2850) - Allow Csv Reader to treat string as contents of file [Issue #1285](#1285) [PR #2792](#2792) - Allow Csv Reader to store null string rather than leave cell empty [Issue #2840](#2840) [PR #2842](#2842) - Provide new Worksheet methods to identify if a row or column is "empty", making allowance for different definitions of "empty": - Treat rows/columns containing no cell records as empty (default) - Treat cells containing a null value as empty - Treat cells containing an empty string as empty ### Changed - Modify `rangeBoundaries()`, `rangeDimension()` and `getRangeBoundaries()` Coordinate methods to work with row/column ranges as well as with cell ranges and cells [PR #2926](#2926) - Better enforcement of value modification to match specified datatype when using `setValueExplicit()` - Relax validation of merge cells to allow merge for a single cell reference [Issue #2776](#2776) - Memory and speed improvements, particularly for the Cell Collection, and the Writers. See [the Discussion section on github](#2821) for details of performance across versions - Improved performance for removing rows/columns from a worksheet ### Deprecated - Nothing ### Removed - Nothing ### Fixed - Xls Reader resolving absolute named ranges to relative ranges [Issue #2826](#2826) [PR #2827](#2827) - Null value handling in the Excel Math/Trig PRODUCT() function [Issue #2833](#2833) [PR #2834](#2834) - Invalid Print Area defined in Xlsx corrupts internal storage of print area [Issue #2848](#2848) [PR #2849](#2849) - Time interval formatting [Issue #2768](#2768) [PR #2772](#2772) - Copy from Xls(x) to Html/Pdf loses drawings [PR #2788](#2788) - Html Reader converting cell containing 0 to null string [Issue #2810](#2810) [PR #2813](#2813) - Many fixes for Charts, especially, but not limited to, Scatter, Bubble, and Surface charts. [Issue #2762](#2762) [Issue #2299](#2299) [Issue #2700](#2700) [Issue #2817](#2817) [Issue #2763](#2763) [Issue #2219](#2219) [Issue #2863](#2863) [PR #2828](#2828) [PR #2841](#2841) [PR #2846](#2846) [PR #2852](#2852) [PR #2856](#2856) [PR #2865](#2865) [PR #2872](#2872) [PR #2879](#2879) [PR #2898](#2898) [PR #2906](#2906) [PR #2922](#2922) [PR #2923](#2923) - Adjust both coordinates for two-cell anchors when rows/columns are added/deleted. [Issue #2908](#2908) [PR #2909](#2909) - Keep calculated string results below 32K. [PR #2921](#2921) - Filter out illegal Unicode char values FFFE/FFFF. [Issue #2897](#2897) [PR #2910](#2910) - Better handling of REF errors and propagation of all errors in Calculation engine. [PR #2902](#2902) - Calculating Engine regexp for Column/Row references when there are multiple quoted worksheet references in the formula [Issue #2874](#2874) [PR #2899](#2899)
5 tasks
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Drawings in an Xlsx file are stored in such a way that Php can read their contents using the
zip:protocol. This does not, however, work when the file is read by PhpSpreadsheet and then saved as Html or Pdf, since the browser will not recognize that protocol even if the file is available. Such drawings need to be saved in the html as embedded images in order for the copy to display them properly. This is true even when the writer is set to not embed images (default).An additional problem arises when an Html file with an embedded image is read, because
Worksheet\Drawing::setPathattempts to validate the path, which it cannot do for thedata:imageUrl which embedded images use.And yet another problem. Writer/Html writes out a MemoryDrawing as a png using the imagepng function; but then declares it as jpeg in the Html. This is now corrected.
And a fourth problem. Writer/Html ignores the last row if it contains nothing but a Memory Drawing, which can be true when copying an Xls file.
These changes are testable (it's how I discovered the second part of this parlay). I think it is also useful to add a sample to see the results of this type of copy.
This is:
Checklist:
Why this change is needed?
Provide an explanation of why this change is needed, with links to any Issues (if appropriate).
If this is a bugfix or a new feature, and there are no existing Issues, then please also create an issue that will make it easier to track progress with this PR.