Created attachment 183747 [details] Visible gaps in Arabic/Persian text Description: When copying text, or creating a new file, sometimes a fallback font is used that does not contain characters for many languages. In this case, the character dimensions are incorrectly calculated. Steps to Reproduce: 1. Open attachment Actual Results: See the visible gaps in Arabic/Persian text. The selected font is "Lohit Devanagari", and the fallback font is "FreeSerif". The problem disappears when setting "FreeSerif" font for the text. The problem is not visible in the PDF export. Expected Results: There should not be gaps between joined characters in Arabic/Persian text like جمع. Reproducible: Always User Profile Reset: No Additional Info: Reproducible with the latest LO dev 7.5 Version: 7.5.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: 651658d37bcb3f493942dd5d0b9a0d65c96f105c CPU threads: 8; OS: Linux 5.15; UI render: default; VCL: gtk3 Locale: en-US (en_US.UTF-8); UI: en-US Calc: threaded Reproducible with LO 7.4 Version: 7.4.0.3 / LibreOffice Community Build ID: f85e47c08ddd19c015c0114a68350214f7066f5a CPU threads: 8; OS: Linux 5.15; UI render: default; VCL: x11 Locale: en-US (en_US.UTF-8); UI: en-US Calc: threaded Not reproducible with LO 7.3 Version: 7.3.6.1 / LibreOffice Community Build ID: 92b673af3a5e8f7cf4716be88dfaca424612f244 CPU threads: 8; OS: Linux 5.15; UI render: default; VCL: x11 Locale: en-US (en_US.UTF-8); UI: en-US Calc: threaded
I can reproduce this bug. Version: 7.4.2.3 / LibreOffice Community Build ID: 40(Build:3) CPU threads: 2; OS: Linux 5.15; UI render: default; VCL: gtk3 Locale: fa-IR (en_US.UTF-8); UI: en-US Ubuntu package version: 1:7.4.2~rc3-0ubuntu0.22.04.1~lo1 Calc: threaded
Regression, it is not in: Version: 7.3.7.2 / LibreOffice Community Build ID: e114eadc50a9ff8d8c8a0567d6da8f454beeb84f CPU threads: 8; OS: Linux 5.15; UI render: default; VCL: gtk3 Locale: de-DE (en_AU.UTF-8); UI: en-US Calc: threaded
bisected to: c61a073e681ced79313f9bf70875c7899756d7aa is the first bad commit commit c61a073e681ced79313f9bf70875c7899756d7aa Author: Jenkins Build User <tdf@pollux.tdf> Date: Mon Jan 17 17:28:49 2022 +0100 source bb495c6a2f00346698a041bce69a5a97effc79d7 instdir/program/setuprc | 2 +- instdir/program/versionrc | 2 +- instdir/share/registry/main.xcd | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) Which points to: commit bb495c6a2f00346698a041bce69a5a97effc79d7 author Caolán McNamara <caolanm@redhat.com> Mon Jan 17 12:48:43 2022 +0000 committer Caolán McNamara <caolanm@redhat.com> Mon Jan 17 17:23:18 2022 +0100 tree f5f36ea2c968b9c8a4e3767dd49fb3f9edc828fb parent 44c05a9ae8de321875f2e9868b7bb1046eccd64a tdf#144862 set default render mode to LayoutAndMatchRender Caolán, could you please have a look?
Caolán McNamara committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/c50cf1883af26daebdfc9d796ced3c20c222f43b Related: tdf#152196 these should be at least DeviceCoordinate It will be available in 7.5.0. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
For me, the problem is still there with the latest patch applied. Version: 7.5.0.0.alpha1+ (X86_64) / LibreOffice Community Build ID: c50cf1883af26daebdfc9d796ced3c20c222f43b CPU threads: 8; OS: Linux 5.15; UI render: default; VCL: gtk3 Locale: en-US (en_US.UTF-8); UI: en-US Calc: threaded
Caolán McNamara committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/815fd0084aaa6b8c536a13a415cb8cdaf6124ba7 Related: tdf#152196 adjustLinearPosX takes a double It will be available in 7.5.0. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Caolán McNamara committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/9935fdbcb45ef021c4a25aaced19bcefce5301d7 Related: tdf#152196 adjustLinearPosX takes a double It will be available in 7.5.0. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Caolán McNamara committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/adcedbea71024470783406a187516be4b7bfb4d6 Resolves: tdf#152196 visible gaps with glyph fallback in Arabic/Persian text It will be available in 7.5.0. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
looks good to me in trunk, backport to 7-4 in gerrit
Thanks Caolán! Verified the fix with the latest LO 7.5 dev master: Version: 7.5.0.0.alpha1+ (X86_64) / LibreOffice Community Build ID: 17caf28907ae14ecd84f270cf11e984f5bc553c1 CPU threads: 8; OS: Linux 5.15; UI render: default; VCL: gtk3 Locale: en-US (en_US.UTF-8); UI: en-US Calc: threaded
Caolán McNamara committed a patch related to this issue. It has been pushed to "libreoffice-7-4": https://git.libreoffice.org/core/commit/1da94619de444da37b560a675278c3d4c1cc2f3c Resolves: tdf#152196 visible gaps with glyph fallback in Arabic/Persian text It will be available in 7.4.4. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.