View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0038589 | Lazarus | Widgetset | public | 2021-03-05 19:48 | 2021-03-05 19:48 |
| Reporter | Zoë Peterson | Assigned To | |||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | new | Resolution | open | ||
| Product Version | 2.0.13 (SVN) | ||||
| Summary | 0038589: LCLQT controls don't update properly when changing the application palette | ||||
| Description | If you change the application palette using QApplication_setPalette, the cached system colors are cleared and a some of the interface updates appropriately, but forms and edits are still drawn with the old background color. Recreating the form's handle updates the appearance, but shouldn't be necessary. Creating a form/button/edit with raw QT commands will result in that window updating its appearance immediately. | ||||
| Steps To Reproduce | The attached app demonstrates the problem. It creates two top level windows, one is an LCL TForm and the other is a raw QMainWindowH, both with buttons and an edit on them. Run it with "-style cde" to get the most noticeable results. Tested on Linux Mint. The buttons on the main window are: * Default Palette: Set the application palette to the active style's standardPalette. * Light Palette/Dark Palette: Set the application palette to a fixed light or dark set of colors. * RecreateWnd: Call RecreateWnd on the LCL form When pressing any of the Palette buttons, the appearance of the raw QT window updates immediately, On the LCL form, a bunch of the drawing updates, but the form's background and the edit background are drawn incorrectly until you click the RecreateWnd button. | ||||
| Tags | No tags attached. | ||||
| Fixed in Revision | |||||
| LazTarget | |||||
| Widgetset | QT5 | ||||
| Attached Files |
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| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2021-03-05 19:48 | Zoë Peterson | New Issue | |
| 2021-03-05 19:48 | Zoë Peterson | File Added: QtPaletteChange.tar.gz |
