View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0037712 | Lazarus | Widgetset | public | 2020-09-06 16:12 | 2020-10-24 20:49 |
| Reporter | CudaText man | Assigned To | |||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | new | Resolution | open | ||
| OS | Ubuntu 20 x64 | ||||
| Product Version | 2.1 (SVN) | ||||
| Summary | 0037712: gtk3: TApplication.ActivateHint refreshes hint on every mouse move | ||||
| Description | Related to https://bugs.freepascal.org/view.php?id=37599 to not mess all topics there. demo: https://github.com/Alexey-T/ATFlatControls/tree/master/app/demo_tabs Tabs 2nd and 3rd have custom hint. When I move mouse over tabs (tab 2 and 3) I expect that hint refreshes ONLY on move to new tab. gtk3: hint refreshed+flickers on EVERY mouse move. Set breakpoint in TApplication.ActivateHint. It's called in mouse move. on gtk3, it goes to
HintControlChanged := not CheckHintControlChange or (FHintControl <> Info.Control);
if Info.ControlHasHint then
begin
if HintControlChanged then
begin
StopHintTimer;
HideHint;
FHintControl := Info.Control;
FHintRect := FHintControl.BoundsRect;
end;
so gtk3 has HintControlChanged=true! its a bug! on mouse move inside one tab, control is the same. | ||||
| Tags | No tags attached. | ||||
| Fixed in Revision | |||||
| LazTarget | |||||
| Widgetset | GTK 3 | ||||
| Attached Files |
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| related to | 0037351 | closed | Juha Manninen | [GTK3] Hint window does not work |
| related to | 0037599 | new | gtk3: Bugs in ATTabs |
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Guess that HintControlChanged=true because of FHintControl=nil, which is cleared here 0 CANCELHINT(0x7ffff59e28f0) at include/application.inc:1294 1 NOTIFYUSERINPUTHANDLER(0x7ffff59e28f0, 0x7ffff59e2f30, 66636) at include/application.inc:1537 2 NOTIFYAPPLICATIONUSERINPUT(0x7ffff59e2f30, 66636) at forms.pp:1920 3 GTKEVENTMOUSEENTERLEAVE(0x7ffff59f5ad0, 0xc2c170, 0x17b3000) at gtk3/gtk3widgets.pas:1757 4 GTK3WIDGETEVENT(0xc2c170, 0x17b3000, 0x7ffff59f5ad0) at gtk3/gtk3widgets.pas:1262 |
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In win32 widgetset NotifyApplicationUserInput called only in special cases. Where it is required in message handler set the boolean NotifyUserInput:=true // application processing if NotifyUserInput then begin CurrentWindow := Window; NotifyApplicationUserInput(lWinControl, PLMsg^.Msg); // Invalidate associated lWinControl if current window has been destroyed if CurrentWindow = 0 then lWinControl := nil; end; In GTK3 NotifyApplicationUserInput is called in every event handler without any filters |
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So we must improve this handler? |
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found that maybe the reason is hiding the hint by Application.HintTimer (it gives HintControlChanged=True) // start hide timer if HintInfo.ReshowTimeout>0 then StartHintTimer(HintInfo.ReshowTimeout,ahttReshowHint) else StartHintTimer(HintInfo.HideTimeout,ahttHideHint); /////this is called often on gtk3 |
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NEW SMALL DEMO https://github.com/Alexey-T/FreePascal-tests/tree/master/Hints%20for%20n%20cells |
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Please test with r64067. See related 0037351. |
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Testing of ATFlatControls tabs-demo shows that for first seconds of usage, its better, but after N seconds and moving of mouse around tabs (2nd-3rd tabs, X icons), it's same bad |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2020-09-06 16:12 | CudaText man | New Issue | |
| 2020-09-06 16:40 | CudaText man | Note Added: 0125406 | |
| 2020-09-06 18:39 | Anton Kavalenka | Note Added: 0125408 | |
| 2020-09-07 08:55 | Juha Manninen | Relationship added | related to 0037351 |
| 2020-09-07 09:54 | CudaText man | Note Added: 0125414 | |
| 2020-09-07 19:16 | CudaText man_ | Note Added: 0125431 | |
| 2020-09-08 10:34 | CudaText man_ | Note Added: 0125435 | |
| 2020-09-20 08:56 | Juha Manninen | Relationship added | related to 0037599 |
| 2020-10-24 14:34 | Juha Manninen | Note Added: 0126510 | |
| 2020-10-24 20:49 | CudaText man | Note Added: 0126521 |
