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@ -3,7 +3,7 @@ The code in imgui.cpp embeds a copy of 'ProggyClean.ttf' (by Tristan Grimmer),
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a 13 pixels high, pixel-perfect font used by default.
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We embed it font in source code so you can use Dear ImGui without any file system access.
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You may also load external .TTF/.OTF files.
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You may also load external .TTF/.OTF files.
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The files in this folder are suggested fonts, provided as a convenience.
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(Note: .OTF support in imstb_truetype.h currently doesn't appear to load every font)
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@ -45,9 +45,9 @@ If you have other loading/merging/adding fonts, you can post on the Dear ImGui "
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USING ICONS
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---------------------------------------
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Using an icon font (such as FontAwesome: http://fontawesome.io or OpenFontIcons. https://github.com/traverseda/OpenFontIcons)
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Using an icon font (such as FontAwesome: http://fontawesome.io or OpenFontIcons. https://github.com/traverseda/OpenFontIcons)
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is an easy and practical way to use icons in your Dear ImGui application.
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A common pattern is to merge the icon font within your main font, so you can embed icons directly from your strings without
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A common pattern is to merge the icon font within your main font, so you can embed icons directly from your strings without
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having to change fonts back and forth.
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To refer to the icon UTF-8 codepoints from your C++ code, you may use those headers files created by Juliette Foucaut:
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@ -77,8 +77,8 @@ Example Usage:
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ImGui::Text("%s among %d items", ICON_FA_SEARCH, count);
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ImGui::Button(ICON_FA_SEARCH " Search");
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// C string _literals_ can be concatenated at compilation time, e.g. "hello" " world"
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// ICON_FA_SEARCH is defined as a string literal so this is the same as "A" "B" becoming "AB"
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// ICON_FA_SEARCH is defined as a string literal so this is the same as "A" "B" becoming "AB"
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See Links below for other icons fonts and related tools.
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@ -96,7 +96,7 @@ Load .TTF/.OTF file with:
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ImGuiIO& io = ImGui::GetIO();
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ImFont* font1 = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels);
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ImFont* font2 = io.Fonts->AddFontFromFileTTF("anotherfont.otf", size_pixels);
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// Select font at runtime
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ImGui::Text("Hello"); // use the default font (which is the first loaded font)
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ImGui::PushFont(font2);
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@ -113,13 +113,13 @@ For advanced options create a ImFontConfig structure and pass it to the AddFont
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If you have very large number of glyphs or multiple fonts, the texture may become too big for your graphics API.
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The typical result of failing to upload a texture is if every glyphs appears as white rectangles.
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In particular, using a large range such as GetGlyphRangesChineseSimplifiedCommon() is not recommended unless you
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In particular, using a large range such as GetGlyphRangesChineseSimplifiedCommon() is not recommended unless you
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set OversampleH/OversampleV to 1 and use a small font size.
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Mind the fact that some graphics drivers have texture size limitation.
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If you are building a PC application, mind the fact that your users may use hardware with lower limitations than yours.
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Some solutions:
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- 1) Reduce glyphs ranges by calculating them from source localization data.
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- 1) Reduce glyphs ranges by calculating them from source localization data.
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You can use ImFontGlyphRangesBuilder for this purpose, this will be the biggest win!
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- 2) You may reduce oversampling, e.g. config.OversampleH = config.OversampleV = 1, this will largely reduce your texture size.
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- 3) Set io.Fonts.TexDesiredWidth to specify a texture width to minimize texture height (see comment in ImFontAtlas::Build function).
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@ -144,14 +144,14 @@ Add a fourth parameter to bake specific font ranges only:
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// Basic Latin, Extended Latin
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io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, NULL, io.Fonts->GetGlyphRangesDefault());
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// Default + Selection of 2500 Ideographs used by Simplified Chinese
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io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, NULL, io.Fonts->GetGlyphRangesChineseSimplifiedCommon());
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// Default + Hiragana, Katakana, Half-Width, Selection of 1946 Ideographs
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io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, NULL, io.Fonts->GetGlyphRangesJapanese());
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See "BUILDING CUSTOM GLYPH RANGES" section to create your own ranges.
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See "BUILDING CUSTOM GLYPH RANGES" section to create your own ranges.
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Offset font vertically by altering the io.Font->DisplayOffset value:
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ImFont* font = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels);
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@ -163,8 +163,8 @@ Offset font vertically by altering the io.Font->DisplayOffset value:
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---------------------------------------
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Dear ImGui uses imstb_truetype.h to rasterize fonts (with optional oversampling).
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This technique and its implementation are not ideal for fonts rendered at _small sizes_, which may appear a
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little blurry or hard to read.
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This technique and its implementation are not ideal for fonts rendered at _small sizes_, which may appear a
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little blurry or hard to read.
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There is an implementation of the ImFontAtlas builder using FreeType that you can use in the misc/freetype/ folder.
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@ -178,7 +178,7 @@ Also note that correct sRGB space blending will have an important effect on your
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---------------------------------------
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You can use the ImFontGlyphRangesBuilder helper to create glyph ranges based on text input.
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For example: for a game where your script is known, if you can feed your entire script to it and only build the characters the game needs.
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For example: for a game where your script is known, if you can feed your entire script to it and only build the characters the game needs.
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ImVector<ImWchar> ranges;
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ImFontGlyphRangesBuilder builder;
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@ -198,11 +198,11 @@ For example: for a game where your script is known, if you can feed your entire
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Compile and use 'binary_to_compressed_c.cpp' to create a compressed C style array that you can embed in source code.
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See the documentation in binary_to_compressed_c.cpp for instruction on how to use the tool.
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You may find a precompiled version binary_to_compressed_c.exe for Windows instead of demo binaries package (see README).
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The tool optionally used Base85 encoding to reduce the size of _source code_ but the read-only arrays will be about 20% bigger.
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The tool optionally used Base85 encoding to reduce the size of _source code_ but the read-only arrays will be about 20% bigger.
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Then load the font with:
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ImFont* font = io.Fonts->AddFontFromMemoryCompressedTTF(compressed_data, compressed_data_size, size_pixels, ...);
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or:
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or:
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ImFont* font = io.Fonts->AddFontFromMemoryCompressedBase85TTF(compressed_data_base85, size_pixels, ...);
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@ -221,7 +221,7 @@ Cousine-Regular.ttf
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by Steve Matteson
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Digitized data copyright (c) 2010 Google Corporation.
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Licensed under the SIL Open Font License, Version 1.1
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https://fonts.google.com/specimen/Cousine
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https://fonts.google.com/specimen/Cousine
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DroidSans.ttf
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@ -267,7 +267,7 @@ ICON FONTS
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Kenney Icon Font (Game Controller Icons)
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https://github.com/nicodinh/kenney-icon-font
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IcoMoon - Custom Icon font builder
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https://icomoon.io/app
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