View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0030782 | Open CASCADE | OCCT:Visualization | public | 2019-06-17 08:00 | 2020-08-31 13:01 |
| Reporter | kgv | Assigned To | bugmaster | ||
| Priority | normal | Severity | feature | ||
| Status | closed | Resolution | fixed | ||
| Target Version | 7.4.0 | Fixed in Version | 7.4.0 | ||
| Summary | 0030782: Visualization, Font_FTFont - use predefined fallback fonts for extended Unicode subsets | ||||
| Description | Common fonts usually cover only Western subset of Unicode symbols, while characters for Chinese, Korean, Japanese languages are provided by dedicated font families (in turn, not supporting Western languages well). In most cases, systems/applications implicitly load fallback fonts, when requested font does not support such symbols. This looks confusing (user has been fooled about font selection), but makes symbols readable. It is suggested implementing the similar approach within Font_FTFont for a limited subset of known font families, enabled by default. | ||||
| Steps To Reproduce | pload MODELING VISUALIZATION dtracelevel trace vfont -verbose 1 vclear vinit View1 vaxo vpoint p0 0 0 0 pload MODELING VISUALIZATION dtracelevel trace vfont -verbose 1 vclear vinit View1 vtop vpoint p00 0 0 0 vpoint p01 0 10 0 vpoint p11 10 10 0 vpoint p10 10 0 0 vfit vzoom 0.8 vdrawtext t0 "한국어 (Korean) Čeština" -pos 0 0 0 -halign left -font korean vdrawtext t1 "한국어 (Korean) Čeština" -pos 10 1 0 -halign right -font sans vdrawtext t2 "简体中文 (Chinese)" -pos 0 2 0 -halign left -font cjk vdrawtext t3 "简体中文 (Chinese)" -pos 10 3 0 -halign right -font sans vdrawtext t4 "あ (Japanese)" -pos 0 4 0 -halign left -font cjk vdrawtext t5 "あ (Japanese)" -pos 10 5 0 -halign right -font sans | ||||
| Tags | No tags attached. | ||||
| Test case number | Not required | ||||
| related to | 0030439 | closed | bugmaster | Open CASCADE | Visualization - extend fonts search within Font_FontMgr::FindFont() on Linux |
| parent of | 0031720 | closed | bugmaster | Community | Visualization, Font_FontMgr - register one more CJK fallback font available on newer Android devices |
| parent of | 0031728 | closed | bugmaster | Community | Visualization, Font_FontMgr - provide function to register fallback fonts in application level |
| related to | 0030946 | closed | Open CASCADE | Visualization - Image_AlienPixMap ignores 1-bit pixelformat when using FreeImage | |
| related to | 0031719 | closed | bugmaster | Community | no default Chinese Unicode support |
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Branch CR30782 has been created by kgv. SHA-1: c4093fcfeaf05d244abe59baab849d3b0c3cb0c8 Detailed log of new commits: Author: kgv Date: Sun Jun 16 13:09:49 2019 +0300 0030782: Visualization, Font_FTFont - use predefined fallback fonts for extended Unicode subsets Font_FTFont now uses fallback fonts for characters from unsupported Unicode subsets, managed by Font_FTFont::ToUseUnicodeSubsetFallback() and Font_FontMgr::ToUseUnicodeSubsetFallback() option, enabled by default. The fallback list includes common font families for Chinese, Korean and Japanese languages. Font_FTFont::RenderGlyph() now supports FT_PIXEL_MODE_MONO input format used by some CJK fonts. OpenGl_Font::createTexture() now limits single texture size to circa 4096 glyphs. test/testgrid now expects test scripts being in UTF-8 encoding in sync with "DRAWEXE -f script.tcl". |
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fonts_KO.png (8,707 bytes) |
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fonts_OK.png (9,917 bytes) |
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Branch CR30782 has been updated forcibly by kgv. SHA-1: 45a549b8519128e227a2da8e7d47f1e2b2fb71f0 |
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Patch is ready for review. http://jenkins-test-12.nnov.opencascade.com:8080/view/CR30782-master-KGV |
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Branch CR30782 has been updated forcibly by kgv. SHA-1: 8fb843f1065a67982ca1cfa01df00117556b1116 |
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Branch CR30782 has been updated forcibly by kgv. SHA-1: 3759d86d1e45d3b303077fea6a343b18a31a7572 |
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Branch CR30782 has been updated by kgv. SHA-1: 9980621e365439d4a3e2eb229cfb074a98ee7b0a Detailed log of new commits: Author: kgv Date: Mon Jun 17 19:28:03 2019 +0300 AIS::InitFaceLength() - fixed usage of uninitialized result. |
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Branch CR30782 has been updated forcibly by kgv. SHA-1: 534c822e324a2e86aaf60156576166145a53acea |
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Reviewed without remarks |
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Combination - OCCT branch : CR30782 master SHA - 9980621e365439d4a3e2eb229cfb074a98ee7b0a d67d4b811012eef8913d3c535c29654d0acf3c4c Products branch : master SHA - c08b242c9da615bfdf83ca463321740d4cc22898 was compiled on Linux, MacOS and Windows platforms and tested in optimize mode. Number of compiler warnings: No new/fixed warnings Regressions/Differences/Improvements: No regressions/differences CPU differences: Debian80-64: OCCT Total CPU difference: 16222.920000000222 / 16165.540000000055 [+0.35%] Products Total CPU difference: 10477.300000000025 / 10470.440000000042 [+0.07%] Windows-64-VC14: OCCT Total CPU difference: 17643.40625 / 17617.546875 [+0.15%] Products Total CPU difference: 12080.15625 / 12111.125 [-0.26%] Image differences : No differences that require special attention Memory differences : No differences that require special attention |
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Branch CR30782 has been deleted by inv. SHA-1: 534c822e324a2e86aaf60156576166145a53acea |
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occt: master 912761ea 2019-06-16 10:09:49 Committer: bugmaster Details Diff |
0030782: Visualization, Font_FTFont - use predefined fallback fonts for extended Unicode subsets Font_FTFont now uses fallback fonts for characters from unsupported Unicode subsets, managed by Font_FTFont::ToUseUnicodeSubsetFallback() and Font_FontMgr::ToUseUnicodeSubsetFallback() option, enabled by default. The fallback list includes common font families for Chinese, Korean and Japanese languages. Font_FTFont::RenderGlyph() now supports FT_PIXEL_MODE_MONO input format used by some CJK fonts. OpenGl_Font::createTexture() now limits single texture size to circa 4096 glyphs. test/testgrid now expects test scripts being in UTF-8 encoding in sync with "DRAWEXE -f script.tcl". AIS::InitFaceLength() - fixed usage of uninitialized result. |
Affected Issues 0030782 |
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| mod - src/AIS/AIS.cxx | Diff File | ||
| mod - src/DrawResources/TestCommands.tcl | Diff File | ||
| mod - src/Font/FILES | Diff File | ||
| mod - src/Font/Font_BRepFont.cxx | Diff File | ||
| mod - src/Font/Font_FontMgr.cxx | Diff File | ||
| mod - src/Font/Font_FontMgr.hxx | Diff File | ||
| mod - src/Font/Font_FTFont.cxx | Diff File | ||
| mod - src/Font/Font_FTFont.hxx | Diff File | ||
| mod - src/Font/Font_NameOfFont.hxx | Diff File | ||
| add - src/Font/Font_UnicodeSubset.hxx | Diff File | ||
| mod - src/OpenGl/OpenGl_Font.cxx | Diff File | ||
| mod - src/OpenGl/OpenGl_Font.hxx | Diff File | ||
| mod - src/ViewerTest/ViewerTest_ObjectCommands.cxx | Diff File | ||
| add - tests/3rdparty/fonts/C2 | Diff File | ||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2019-06-17 08:00 | kgv | New Issue | |
| 2019-06-17 08:00 | kgv | Assigned To | => kgv |
| 2019-06-17 08:01 | kgv | Summary | Visualization, Font_FTFont - try using predefined fallback fonts for extended Unicode subsets => Visualization, Font_FTFont - use predefined fallback fonts for extended Unicode subsets |
| 2019-06-17 08:07 | git | Note Added: 0085077 | |
| 2019-06-17 08:29 | kgv | Steps to Reproduce Updated | |
| 2019-06-17 08:31 | kgv | File Added: fonts_KO.png | |
| 2019-06-17 08:33 | kgv | File Added: fonts_OK.png | |
| 2019-06-17 08:35 | git | Note Added: 0085079 | |
| 2019-06-17 10:49 | kgv | Note Added: 0085083 | |
| 2019-06-17 10:49 | kgv | Assigned To | kgv => san |
| 2019-06-17 10:49 | kgv | Status | new => resolved |
| 2019-06-17 10:52 | git | Note Added: 0085084 | |
| 2019-06-17 14:35 | git | Note Added: 0085091 | |
| 2019-06-17 14:46 | kgv | Relationship added | related to 0030439 |
| 2019-06-17 19:28 | git | Note Added: 0085099 | |
| 2019-06-17 22:53 | git | Note Added: 0085103 | |
| 2019-06-18 13:47 | kgv | Assigned To | san => osa |
| 2019-06-18 15:55 |
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Note Added: 0085120 | |
| 2019-06-18 15:55 |
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Assigned To | osa => bugmaster |
| 2019-06-18 15:55 |
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Status | resolved => reviewed |
| 2019-06-19 19:40 | bugmaster | Test case number | => Not required |
| 2019-06-19 19:41 | bugmaster | Note Added: 0085144 | |
| 2019-06-19 19:41 | bugmaster | Status | reviewed => tested |
| 2019-06-22 16:18 | bugmaster | Changeset attached | => occt master 912761ea |
| 2019-06-22 16:18 | bugmaster | Status | tested => verified |
| 2019-06-22 16:18 | bugmaster | Resolution | open => fixed |
| 2019-06-22 16:22 | git | Note Added: 0085221 | |
| 2019-09-05 14:12 | kgv | Relationship added | related to 0030946 |
| 2020-08-19 19:01 | kgv | Relationship added | related to 0031719 |
| 2020-08-21 14:14 | kgv | Relationship added | parent of 0031720 |
| 2020-08-31 13:01 | kgv | Relationship added | parent of 0031728 |
