mattcasters opened a new pull request, #7366:
URL: https://github.com/apache/hop/pull/7366
### Description
This change introduces a tabbed interface (`CTabFolder`) to the **Delete**
transform dialog (`DeleteDialog`).
Previously, all widgets (connection settings, commit configurations, and key
lookup tables) were rendered on a single layout panel. Under Linux (especially
GTK/Wayland environments or with display scaling enabled, e.g.,
`GDK_SCALE=1.5`), this squashed the table view grids, making them unresizable
and difficult to interact with (as reported in issue #7188).
Adding a tabbed interface allows the grid controls to take up sufficient
vertical height, resolving UI accessibility issues and aligning the Delete
dialog with related transform dialogs (such as *Update* and *Insert/Update*).
### Changes
* **DeleteDialog UI**:
* Migrated the layout from a single composite parented by the main dialog
shell to a `CTabFolder` component.
* Split dialog controls into two tabs:
1. **General**: Target database connection, schema, table, commit size,
and batch delete settings.
2. **Lookup Keys**: Key comparison grid and the "Get fields" button.
* Cleaned up hardcoded button layouts by using the standard
`setButtonPositions(...)` helper.
* **Translation Files**:
* Added `DeleteDialog.GeneralTab.Title` and `DeleteDialog.KeysTab.Title`
translation keys to `messages_en_US.properties` and `messages_pt_BR.properties`.
### Verification & Testing
* Code has been formatted using Spotless (`mvn spotless:apply`).
* Validated full project compilation and client assembly via:
```bash
./mvnw -T5 -Pfast-build clean install
```
(Build succeeded with no errors).
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