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Fonts readme, refering to IconFontCppHeaders, AddRemapChar() function, etc.

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ocornut 2016-05-04 17:20:11 +02:00
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25
extra_fonts/README.txt
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@ -1,9 +1,13 @@
The code in imgui.cpp embeds a copy of 'ProggyClean.ttf' that you can use without any external files.
Those are only provided as a convenience, you can load your own .TTF files.
The files in this folder are only provided as a convenience, you can use any of your own .TTF files.
Fonts are rasterized in a single texture at the time of calling either of io.Fonts.GetTexDataAsAlpha8()/GetTexDataAsRGBA32()/Build().
If you want to use icons in ImGui, a good idea is to merge an icon font within your main font, and refer to icons directly in your strings.
You can use headers files with definitions for popular icon fonts codepoints, by Juliette Foucaut, at https://github.com/juliettef/IconFontCppHeaders
---------------------------------
LOADING INSTRUCTIONS
---------------------------------
@ -35,10 +39,10 @@
Combine two fonts into one:
// Load main font
// Load a first font
io.Fonts->AddFontDefault();
// Add character ranges and merge into main font
// Add character ranges and merge into the previous font
// The ranges array is not copied by the AddFont* functions and is used lazily
// so ensure it is available for duration of font usage
static const ImWchar icons_ranges[] = { 0xf000, 0xf3ff, 0 }; // will not be copied by AddFont* so keep in scope.
@ -63,6 +67,16 @@
ImFont* font = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels);
font->DisplayOffset.y += 1; // Render 1 pixel down
---------------------------------
REMAP CODEPOINTS
---------------------------------
All your strings needs to use UTF-8 encoding. Specifying literal in your source code using a local code page (such as CP-923 for Japanese CP-1251 for Cyrillic) will not work.
In C++11 you can encode a string literal in UTF-8 by using the u8"hello" syntax. Otherwise you can convert yourself to UTF-8 or load text data from file already saved as UTF-8.
You can also try to remap your local codepage characters to their Unicode codepoint using font->AddRemapChar(), but international users may have problems reading/editing your source code.
---------------------------------
EMBED A FONT IN SOURCE CODE
---------------------------------
@ -75,8 +89,9 @@
ImFont* font = io.Fonts->AddFontFromMemoryCompressedBase85TTF(compressed_data_base85, size_pixels, ...);
---------------------------------
INCLUDED FONT FILES
FONT FILES INCLUDED IN THIS FOLDER
---------------------------------
Cousine-Regular.ttf
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Copyright (c) 2012, Jonathan Pinhorn
SIL OPEN FONT LICENSE Version 1.1
---------------------------------
LINKS
---------------------------------
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Icon fonts
https://fortawesome.github.io/Font-Awesome/
https://github.com/SamBrishes/kenney-icon-font
https://design.google.com/icons/
Typefaces for source code beautification
https://github.com/chrissimpkins/codeface

2
imgui.cpp
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@ -414,7 +414,7 @@
Q: How can I display and input non-Latin characters such as Chinese, Japanese, Korean, Cyrillic?
A: When loading a font, pass custom Unicode ranges to specify the glyphs to load.
All strings passed need to use UTF-8 encoding. Specifying literal in your source code using a local code page (such as CP-923 for Japanese CP-1251 for Cyrillic) will not work.
All your strings needs to use UTF-8 encoding. Specifying literal in your source code using a local code page (such as CP-923 for Japanese or CP-1251 for Cyrillic) will not work.
In C++11 you can encode a string literal in UTF-8 by using the u8"hello" syntax. Otherwise you can convert yourself to UTF-8 or load text data from file already saved as UTF-8.
You can also try to remap your local codepage characters to their Unicode codepoint using font->AddRemapChar(), but international users may have problems reading/editing your source code.