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Overview
Comment: | Update 552 to reflect -stripedbackground |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA3-256: |
f8a19e3f39e1d349a2e3dde256363467 |
User & Date: | pspjuth 2020-03-22 16:24:59.944 |
Context
2020-03-22
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21:36 | Clarify imageanchor vs tags. check-in: f133d47f3d user: pspjuth tags: trunk | |
16:24 | Update 552 to reflect -stripedbackground check-in: f8a19e3f39 user: pspjuth tags: trunk | |
2020-03-20
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14:12 | Withdrawn TIP #566 check-in: 5d03186804 user: jan.nijtmans tags: trunk | |
Changes
Changes to tip/552.md.
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72 73 74 75 76 77 78 | Default bindings are updated to use these features. The \<\<TreeviewSelect\>\> virtual event triggers on any selection change including cellselection. ## Striped rows | | > | | < > > > > > > > > > > > | 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 | Default bindings are updated to use these features. The \<\<TreeviewSelect\>\> virtual event triggers on any selection change including cellselection. ## Striped rows A new option **-striped** *bool* is added. This makes every other item to be drawn with the **-stripedbackground** color, if that option is set by the theme or tags. Built in themes are updated to put something fitting at that color. ## Column separators The **-show** option is extended with the value `columnseparators` to display a separator between columns. Built in themes are updated to define the separators. ## Image anchor for tree A new item option **-imageanchor** *anchor* is added. This controls the placement of the image relative to the text in an item's tree column. Default is "w". ## Item height A new item option **-height** *height* is added. This controls the height of the item, in multiples of **-rowheight**. Default is 1. # Rejected alternatives ## Striped rows An earlier spec implemented **-striped** as an alternate state. This did not work well, since options are resolved in a certain order. Style defaults, tags, then Style maps. Since alternate was part of the style maps, it overrode any background in tags. The striped background should have less priority than tags, and be at the level of Style defaults. Thus it was moved to a **-stripedbackground** option. # Implementation Started on branch [`pspjuth-treeview`](https://core.tcl-lang.org/tk/timeline?r=pspjuth-treeview) # Copyright This document has been placed in the public domain. |