0031992: high dpi: controls not scaled properly when anchors is set and less than harf size, both horzontal and vertical

ID	Project	Category	View Status	Date Submitted	Last Update

0031992	Lazarus	LCL	public	2017-06-09 20:23	2017-07-20 16:47

Reporter	bald zhang	Assigned To	Ondrej Pokorny
Priority	normal	Severity	minor	Reproducibility	always
Status	closed	Resolution	fixed
Platform	win32	OS	Windows
Product Version	1.9 (SVN)

Summary	0031992: high dpi: controls not scaled properly when anchors is set and less than harf size, both horzontal and vertical
Description	with 4k display, DPI = 192, 200%. a control is set with Anchors akBottom or akRight, when it's Width < Form.Widht /2 or Height < Form.Height / 2, it miss scaled. BTW, Form's Left and Top not scaled also.
Steps To Reproduce	sample project attached. proj16 for lazarus 1.6.4 proj18 for lazarus trunk compile and run, then resize the form.
Tags	No tags attached.

Fixed in Revision	55537
LazTarget	-
Widgetset	Win32/Win64

Attached Files

bald zhang 2017-06-09 20:23 reporter	align-bad.png (33,654 bytes) align-bad.png (33,654 bytes)

bald zhang 2017-06-09 20:23 reporter	align-ok.png (26,810 bytes) align-ok.png (26,810 bytes)

bald zhang 2017-06-09 20:24 reporter	align.zip (257,577 bytes)

Michl 2017-06-09 22:01 developer ~0100983 Last edited: 2017-06-09 22:03 View 3 revisions	Which revision? Here on 64bit Windows7 with 192DPI, Lazarus 1.9.0 r55292 FPC 3.0.0 i386-win32-win32/win64, everything is fine.

bald zhang 2017-06-09 23:17 reporter ~0100986	previous revision is r55289. update to r55293 and do a totally clean/rebuild, it's still the same. is there anything to check again? Windows 10, 64bit, 4k display with 192 DPI, fpc 3.0.2 x86_64

bald zhang 2017-06-11 05:08 reporter	align-18rc1.png (34,812 bytes) align-18rc1.png (34,812 bytes)

bald zhang 2017-06-11 05:11 reporter ~0101017	did more test. in 1.8.0rc1, it's almost good, only error is memo5, the right side should align with memo4 in 1.8.0rc2, it's bad 1.8.0 rc# compiled with fpc 3.0.2 i386, looks not related to x86 or x64

bald zhang 2017-07-20 16:47 reporter ~0101822	it's ok now.

Date Modified	Username	Field	Change
2017-06-09 20:23	bald zhang	New Issue
2017-06-09 20:23	bald zhang	File Added: align-bad.png
2017-06-09 20:23	bald zhang	File Added: align-ok.png
2017-06-09 20:24	bald zhang	File Added: align.zip
2017-06-09 22:00	Ondrej Pokorny	Assigned To	=> Ondrej Pokorny
2017-06-09 22:00	Ondrej Pokorny	Status	new => assigned
2017-06-09 22:01	Michl	LazTarget	=> -
2017-06-09 22:01	Michl	Note Added: 0100983
2017-06-09 22:01	Michl	Assigned To	Ondrej Pokorny =>
2017-06-09 22:01	Michl	Status	assigned => feedback
2017-06-09 22:03	Michl	Note Edited: 0100983	View Revisions
2017-06-09 22:03	Michl	Note Edited: 0100983	View Revisions
2017-06-09 23:17	bald zhang	Note Added: 0100986
2017-06-09 23:17	bald zhang	Status	feedback => new
2017-06-09 23:27	Michl	Assigned To	=> Ondrej Pokorny
2017-06-09 23:27	Michl	Status	new => assigned
2017-06-11 05:08	bald zhang	File Added: align-18rc1.png
2017-06-11 05:11	bald zhang	Note Added: 0101017
2017-07-18 22:51	Ondrej Pokorny	Fixed in Revision	=> 55537
2017-07-18 22:51	Ondrej Pokorny	Status	assigned => resolved
2017-07-18 22:51	Ondrej Pokorny	Resolution	open => fixed
2017-07-20 16:47	bald zhang	Note Added: 0101822
2017-07-20 16:47	bald zhang	Status	resolved => closed