better font handling

extra/VisualizationTool/assets/Geist-Regular.ttf

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1462ccd6f9b8ddf05af952cd66789ac74f29727f0177584163fcd8b177462e5c
+size 111644

extra/VisualizationTool/assets/LICENSE - Geist.txt

@@ -0,0 +1,92 @@
+Copyright (c) 2023 Vercel, in collaboration with basement.studio
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION AND CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

extra/VisualizationTool/assets/LICENSE - SmileySans.txt

@@ -0,0 +1,93 @@
+Copyright (c) 2022--2024, atelierAnchor <https://atelier-anchor.com>,
+with Reserved Font Name <Smiley> and <得意黑>.
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

extra/VisualizationTool/assets/SmileySans-Oblique.ttf

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b447d7e781f08bc95c4c9f23ba71ed2b8ebb639aa7184485c71c4ca5afcd25c4
+size 2629764

extra/VisualizationTool/graph_visualizer.py

@@ -20,6 +20,9 @@ import os
 
 CUSTOM_FONT = "font.ttf"
 
+DEFAULT_FONT_ENG = "Geist-Regular.ttf"
+DEFAULT_FONT_CHI = "SmileySans-Oblique.ttf"
+
 
 class Node3D:
     """Class representing a 3D node in the graph"""
@@ -1169,39 +1172,38 @@ def main():
         # You will need to provide it yourself, or use another font.
         font_filename = CUSTOM_FONT
 
-        use_custom_font = False
-        if not hello_imgui.asset_exists(font_filename):
-            asset_dir = os.path.join(os.path.dirname(__file__), "assets")
-            if os.path.isfile(os.path.join(asset_dir, font_filename)):
-                hello_imgui.set_assets_folder(asset_dir)
-                use_custom_font = True
-
         io = imgui.get_io()
         io.fonts.tex_desired_width = 4096  # Larger texture for better CJK font quality
-
-        if not use_custom_font:
-            io.fonts.add_font_default()
+        font_size_pixels = 14
+        asset_dir = os.path.join(os.path.dirname(__file__), "assets")
+
+        # Try to load custom font
+        if not os.path.isfile(font_filename):
+            font_filename = os.path.join(asset_dir, font_filename)
+        if os.path.isfile(font_filename):
+            custom_font = io.fonts.add_font_from_file_ttf(
+                filename=font_filename,
+                size_pixels=font_size_pixels,
+                glyph_ranges_as_int_list=io.fonts.get_glyph_ranges_chinese_full(),
+            )
+            io.font_default = custom_font
             return
 
-        # Set up font loading parameters with Chinese character support
-        font_loading_params = hello_imgui.FontLoadingParams()
-        font_loading_params.glyph_ranges = hello_imgui.translate_common_glyph_ranges(
-            imgui.get_io().fonts.get_glyph_ranges_chinese_full()
+        # Load default fonts
+        io.fonts.add_font_from_file_ttf(
+            filename=os.path.join(asset_dir, DEFAULT_FONT_ENG),
+            size_pixels=font_size_pixels,
         )
 
-        custom_font = hello_imgui.load_font(font_filename, 16.0, font_loading_params)
-
-        # # Merge with default font
-        # font_config = imgui.ImFontConfig()
-        # font_config.merge_mode = True
-        # custom_font = io.fonts.add_font_from_file_ttf(
-        #     filename= "assets/" + font_filename,
-        #     size_pixels=16.0,
-        #     font_cfg=font_config,
-        #     glyph_ranges_as_int_list=cn_glyph_ranges_imgui,
-        # )
+        font_config = imgui.ImFontConfig()
+        font_config.merge_mode = True
 
-        io.font_default = custom_font
+        io.font_default = io.fonts.add_font_from_file_ttf(
+            filename=os.path.join(asset_dir, DEFAULT_FONT_CHI),
+            size_pixels=font_size_pixels,
+            font_cfg=font_config,
+            glyph_ranges_as_int_list=io.fonts.get_glyph_ranges_chinese_full(),
+        )
 
     runner_params.callbacks.load_additional_fonts = load_font