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Overview
| Comment: | Updated 552 |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
2a5c9376de55e889a811d5a4fb476beb |
| User & Date: | pspjuth 2019-10-22 22:00:55 |
Context
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2019-11-07
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| 23:17 | New TIP: ellipses for Tk check-in: c368e0d5ea user: Donal tags: trunk | |
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2019-10-22
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| 22:00 | Updated 552 check-in: 2a5c9376de user: pspjuth tags: trunk | |
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2019-09-19
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| 21:06 | Added TIP 552 - extended treeview check-in: de930bf6ec user: pspjuth tags: trunk | |
Changes
Changes to tip/552.md.
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# Abstract This TIP proposes a set of new features for the Ttk treeview widget. # Rationale TBW # Specification The following features are added to the treeview widget. ## Locked horizontal scrolling Adds the ability to lock the first column(s) from horizontal scrolling. A new option **-titlecolumns** *n* is added, requesting columns to be locked. ## Cell selection Adds the ability to select individual cells as well as full rows. Cell selection is independent of item selection. Cells are identified with a two element list with item id and column id. A new subcommand **cellselection** is added, mirroring the present **selection**. In addition the **cellselection set** command gets a version for selecting a rectangular range. A new option **-selecttype** *type* is added to direct default bindings to use either item selection or cell selection. The **identify** subcommand is updated with the **cell** option. Default bindings are updated to use these features. ................................................................................ ## 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. # 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. |
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# Abstract This TIP proposes a set of new features for the Ttk treeview widget. # Rationale Each time I have tried to use the Treeview widget it fell short of some feature or another and I had to resort to other means. This aims to fill in the most common missing pieces. # Specification The following features are added to the treeview widget. ## Locked horizontal scrolling Adds the ability to lock the first column(s) from horizontal scrolling. A new option **-titlecolumns** *n* is added, requesting columns to be locked. The tree column counts, even if **-show tree** is not specified. Thus for value N of this option, column #N is the first one that is scrollable. ## Cell selection Adds the ability to select individual cells as well as full rows. Cell selection is independent of item selection. Cells are identified with a two element list with item id and column id. A new subcommand **cellselection** is added, mirroring the present **selection**. In addition the **cellselection set** and **cellselection add** commands get a version for selecting a rectangular range. A new option **-selecttype** *type* is added to direct default bindings to use either item selection or cell selection. The **identify** subcommand is updated with the **cell** option. Default bindings are updated to use these features. ................................................................................ ## 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". # 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. |