Limited Support for Chart Titles as Formulas #2971
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This is a start in addressing issue PHPOffice#2965 (and earlier issue PHPOffice#749). Chart Titles are usually entered as strings or Rich Text strings, and PhpSpreadsheet supports that. They can also be entered as formulas (typically a pointer to a cell with the title text), and, not only did PhpSpreadsheet not support that, it threw an exception when reading a spreadsheet that did so. This change does: - eliminate the exception - set a static chart title when it can determine it from the Xml This change does not: - fully support dynamic titles (e.g. if you change the contents of the source cell, or delete or insert cells or rows or columns) - permit the user to set the title to a formula - allow the use of formulas when writing a chart title to a spreadsheet - provide styling for titles when it has read them as a formula
MarkBaker
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Sep 25, 2022
### Added - Implementation of the new `TEXTBEFORE()`, `TEXTAFTER()` and `TEXTSPLIT()` Excel Functions - Implementation of the `ARRAYTOTEXT()` and `VALUETOTEXT()` Excel Functions - Support for [mitoteam/jpgraph](https://packagist.org/packages/mitoteam/jpgraph) implementation of JpGraph library to render charts added. - Charts: Add Gradients, Transparency, Hidden Axes, Rounded Corners, Trendlines, Date Axes. ### Changed - Allow variant behaviour when merging cells [Issue #3065](#3065) - Merge methods now allow an additional `$behaviour` argument. Permitted values are: - Worksheet::MERGE_CELL_CONTENT_EMPTY - Empty the content of the hidden cells (the default behaviour) - Worksheet::MERGE_CELL_CONTENT_HIDE - Keep the content of the hidden cells - Worksheet::MERGE_CELL_CONTENT_MERGE - Move the content of the hidden cells into the first cell ### Deprecated - Axis getLineProperty deprecated in favor of getLineColorProperty. - Moved majorGridlines and minorGridlines from Chart to Axis. Setting either in Chart constructor or through Chart methods, or getting either using Chart methods is deprecated. - Chart::EXCEL_COLOR_TYPE_* copied from Properties to ChartColor; use in Properties is deprecated. - ChartColor::EXCEL_COLOR_TYPE_ARGB deprecated in favor of EXCEL_COLOR_TYPE_RGB ("A" component was never allowed). - Misspelled Properties::LINE_STYLE_DASH_SQUERE_DOT deprecated in favor of LINE_STYLE_DASH_SQUARE_DOT. - Clone not permitted for Spreadsheet. Spreadsheet->copy() can be used instead. ### Removed - Nothing ### Fixed - Fix update to defined names when inserting/deleting rows/columns [Issue #3076](#3076) [PR #3077](#3077) - Fix DataValidation sqRef when inserting/deleting rows/columns [Issue #3056](#3056) [PR #3074](#3074) - Named ranges not usable as anchors in OFFSET function [Issue #3013](#3013) - Fully flatten an array [Issue #2955](#2955) [PR #2956](#2956) - cellExists() and getCell() methods should support UTF-8 named cells [Issue #2987](#2987) [PR #2988](#2988) - Spreadsheet copy fixed, clone disabled. [PR #2951](#2951) - Fix PDF problems with text rotation and paper size. [Issue #1747](#1747) [Issue #1713](#1713) [PR #2960](#2960) - Limited support for chart titles as formulas [Issue #2965](#2965) [Issue #749](#749) [PR #2971](#2971) - Add Gradients, Transparency, and Hidden Axes to Chart [Issue #2257](#2257) [Issue #2229](#2929) [Issue #2935](#2935) [PR #2950](#2950) - Chart Support for Rounded Corners and Trendlines [Issue #2968](#2968) [Issue #2815](#2815) [PR #2976](#2976) - Add setName Method for Chart [Issue #2991](#2991) [PR #3001](#3001) - Eliminate partial dependency on php-intl in StringHelper [Issue #2982](#2982) [PR #2994](#2994) - Minor changes for Pdf [Issue #2999](#2999) [PR #3002](#3002) [PR #3006](#3006) - Html/Pdf Do net set background color for cells using (default) nofill [PR #3016](#3016) - Add support for Date Axis to Chart [Issue #2967](#2967) [PR #3018](#3018) - Reconcile Differences Between Css and Excel for Cell Alignment [PR #3048](#3048) - R1C1 Format Internationalization and Better Support for Relative Offsets [Issue #1704](#1704) [PR #3052](#3052) - Minor Fix for Percentage Formatting [Issue #1929](#1929) [PR #3053](#3053)
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This is a start in addressing issue #2965 (and earlier issue #749). Chart Titles are usually entered as strings or Rich Text strings, and PhpSpreadsheet supports that. They can also be entered as formulas (typically a pointer to a cell with the title text), and, not only did PhpSpreadsheet not support that, it threw an exception when reading a spreadsheet that did so.
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