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Report From: Kylix/VCLX/TForm [ Add a report in this area ]

Report #: 3536

Status: Open

TForm.Left and TFom.Top return wrong values.

Project: Kylix

Build #: 4.186

Version: 3.0

Submitted By: Martin Schreiber

Report Type: Minor failure / Design problem

Date Reported: 2/14/2003 10:01:13 AM

Severity: Commonly encountered problem

Last Updated: 3/20/2012 2:24:39 AM

Platform: Kylix Pascal IDE

Internal Tracking #: 155952

Resolution: None

Resolved in Build: : None

Duplicate of: None

Voting and Rating

Overall Rating: (2 Total Ratings)

4.50 out of 5

Total Votes: None

Description

QForms.TForm.Left and Top return wrong values in Object Inspector and at runtime, see steps and attachments.

Problem:

After the window frame is decorated, Qt sends a QEventType_Move Event which calls QControls.TWidgetControl.UpdateBounds. QWidget_Geometry is from left = 400, top = 200 shifted to left = 404, top = 220 in the example. In TWidgetControl.AdjustForFrame -> QControls.AdjustForFrame QWidget_frameGeometry is same as QWidget_Geometry (Qt bug?) -> AdjustForFrame fails.

By a later call of AdjustForFrame the error will be corrected.

This is with Suse 8.1, KDE 3.0.3

Steps to Reproduce:

1. Open the attached project in IDE.
2. Set Form1.Left to 400, top to 200
3. Run the project.
4. Note: Left = 404, Top = 220 -> error.
5. Change Size of Form1 with mouse.
6. Left = 400, Top = 200, ok.
7. Close Form1
8. Note: in Object Inspector Form1.Left = 404, Top = 220 -> error.
9. Change size of Form1 with mouse.
10. In Object Inspector Form1.Left = 400, Top = 200.

Workarounds

None

Attachment

3536.zip

Comments

Matthias Thoma at 2/22/2003 2:25:49 PM -

I can reproduce that on different KDE versions.

Andrew Fionik at 3/14/2003 4:10:15 AM -

Interesting, why not anyone inside Borland QA team has not noticed this bug. It was since K1.

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