diff options
| author | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2021-04-13 14:23:45 +0200 |
|---|---|---|
| committer | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2021-10-22 10:48:16 +0200 |
| commit | 7f345f2a1c8d9f60c60e8a9d8cc90729794bd2f1 (patch) | |
| tree | d065509321ab756da25ba1949a3e1ffd331bf6c7 /tests | |
| parent | 5a620689c4622a594d2ff0b86e8461d5bfd611d4 (diff) | |
Avoid processing-intensive painting of high number of tiny dashes
When stroking a dashed path, an unnecessary amount of processing would
be spent if there is a huge number of dashes visible, e.g. because of
scaling. Since the dashes are too small to be indivdually visible
anyway, just replace with a semi-transparent solid line for such
cases.
Change-Id: I9e9f7861257ad5bce46a0cf113d1a9d7824911e6
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
(cherry picked from commit f4d791b330d02777fcaf02938732892eb3167e9b)
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/auto/other/lancelot/scripts/tinydashes.qps | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/tests/auto/other/lancelot/scripts/tinydashes.qps b/tests/auto/other/lancelot/scripts/tinydashes.qps new file mode 100644 index 0000000000..d41ced7f5f --- /dev/null +++ b/tests/auto/other/lancelot/scripts/tinydashes.qps @@ -0,0 +1,34 @@ +# Version: 1 +# CheckVsReference: 5% + +path_addEllipse mypath 20.0 20.0 200.0 200.0 + +save +setPen blue 20 SolidLine FlatCap +pen_setCosmetic true +pen_setDashPattern [ 0.0004 0.0004 ] +setBrush yellow + +drawPath mypath +translate 300 0 +setRenderHint Antialiasing true +drawPath mypath +restore + +path_addEllipse bigpath 200000.0 200000.0 2000000.0 2000000.0 + +setPen blue 20 DotLine FlatCap +setBrush yellow + +save +translate 0 300 +scale 0.0001 0.00011 +drawPath bigpath +restore + +save +translate 300 300 +setRenderHint Antialiasing true +scale 0.0001 0.00011 +drawPath bigpath +restore |