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Fonts: Adding references to the fact that .OTF fonts are supported (but haven't renamed the entry points)

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This commit is contained in:
omar 2017-08-14 11:29:54 +08:00
parent 41076188ca
commit 8c61a4eb4c
4 changed files with 14 additions and 13 deletions
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2
README.md
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@ -103,7 +103,7 @@ See the [Screenshots Thread](https://github.com/ocornut/imgui/issues/123) for so
![screenshot 6](https://raw.githubusercontent.com/wiki/ocornut/imgui/web/v143/skinning_sample_02.png)
![screenshot 7](https://cloud.githubusercontent.com/assets/8225057/7903336/96f0fb7c-07d0-11e5-95d6-41c6a1595e5a.png)
ImGui can load TTF fonts. UTF-8 is supported for text display and input. Here using Arial Unicode font to display Japanese. Initialize custom font with:
ImGui can load TTF/OTF fonts. UTF-8 is supported for text display and input. Here using Arial Unicode font to display Japanese. Initialize custom font with:
```
ImGuiIO& io = ImGui::GetIO();
io.Fonts->AddFontFromFileTTF("ArialUni.ttf", 18.0f, NULL, io.Fonts->GetGlyphRangesJapanese());

5
extra_fonts/README.txt
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@ -1,6 +1,7 @@
The code in imgui.cpp embeds a copy of 'ProggyClean.ttf' that you can use without any external files.
The files in this folder are only provided as a convenience, you can use any of your own .TTF files.
The files in this folder are only provided as a convenience, you can use any .TTF/.OTF.
(Note: .OTF support in stb_truetype.h currently doesn't appear to load every font)
Fonts are rasterized in a single texture at the time of calling either of io.Fonts.GetTexDataAsAlpha8()/GetTexDataAsRGBA32()/Build().
@ -34,7 +35,7 @@
ImGuiIO& io = ImGui::GetIO();
io.Fonts->AddFontDefault();
Load .TTF file with:
Load .TTF/.OTF file with:
ImGuiIO& io = ImGui::GetIO();
io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels);

2
imgui.cpp
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@ -448,7 +448,7 @@
Depending on your application logic it may or not be inconvenient. You might want to track which key-downs were for ImGui (e.g. with an array of bool) and filter out the corresponding key-ups.)
Q: How can I load a different font than the default? (default is an embedded version of ProggyClean.ttf, rendered at size 13)
A: Use the font atlas to load the TTF file you want:
A: Use the font atlas to load the TTF/OTF file you want:
ImGuiIO& io = ImGui::GetIO();
io.Fonts->AddFontFromFileTTF("myfontfile.ttf", size_in_pixels);

18
imgui.h
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@ -48,7 +48,7 @@ struct ImDrawData; // All draw command lists required to render
struct ImDrawList; // A single draw command list (generally one per window)
struct ImDrawVert; // A single vertex (20 bytes by default, override layout with IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT)
struct ImFont; // Runtime data for a single font within a parent ImFontAtlas
struct ImFontAtlas; // Runtime data for multiple fonts, bake multiple fonts into a single texture, TTF font loader
struct ImFontAtlas; // Runtime data for multiple fonts, bake multiple fonts into a single texture, TTF/OTF font loader
struct ImFontConfig; // Configuration data when adding a font or merging fonts
struct ImColor; // Helper functions to create a color that can be converted to either u32 or float4
struct ImGuiIO; // Main configuration and I/O between your application and ImGui
@ -1301,10 +1301,10 @@ struct ImDrawData
struct ImFontConfig
{
void* FontData; // // TTF data
int FontDataSize; // // TTF data size
bool FontDataOwnedByAtlas; // true // TTF data ownership taken by the container ImFontAtlas (will delete memory itself). Set to true
int FontNo; // 0 // Index of font within TTF file
void* FontData; // // TTF/OTF data
int FontDataSize; // // TTF/OTF data size
bool FontDataOwnedByAtlas; // true // TTF/OTF data ownership taken by the container ImFontAtlas (will delete memory itself). Set to true
int FontNo; // 0 // Index of font within TTF/OTF file
float SizePixels; // // Size in pixels for rasterizer
int OversampleH, OversampleV; // 3, 1 // Rasterize at higher quality for sub-pixel positioning. We don't use sub-pixel positions on the Y axis.
bool PixelSnapH; // false // Align every glyph to pixel boundary. Useful e.g. if you are merging a non-pixel aligned font with the default font. If enabled, you can set OversampleH/V to 1.
@ -1320,7 +1320,7 @@ struct ImFontConfig
IMGUI_API ImFontConfig();
};
// Load and rasterize multiple TTF fonts into a same texture.
// Load and rasterize multiple TTF/OTF fonts into a same texture.
// Sharing a texture for multiple fonts allows us to reduce the number of draw calls during rendering.
// We also add custom graphic data into the texture that serves for ImGui.
// 1. (Optional) Call AddFont*** functions. If you don't call any, the default font will be loaded for you.
@ -1335,9 +1335,9 @@ struct ImFontAtlas
IMGUI_API ImFont* AddFont(const ImFontConfig* font_cfg);
IMGUI_API ImFont* AddFontDefault(const ImFontConfig* font_cfg = NULL);
IMGUI_API ImFont* AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL);
IMGUI_API ImFont* AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL); // Transfer ownership of 'ttf_data' to ImFontAtlas, will be deleted after Build()
IMGUI_API ImFont* AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL); // 'compressed_ttf_data' still owned by caller. Compress with binary_to_compressed_c.cpp
IMGUI_API ImFont* AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL); // 'compressed_ttf_data_base85' still owned by caller. Compress with binary_to_compressed_c.cpp with -base85 paramaeter
IMGUI_API ImFont* AddFontFromMemoryTTF(void* font_data, int font_size, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL); // Transfer ownership of 'ttf_data' to ImFontAtlas, will be deleted after Build()
IMGUI_API ImFont* AddFontFromMemoryCompressedTTF(const void* compressed_font_data, int compressed_font_size, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL); // 'compressed_font_data' still owned by caller. Compress with binary_to_compressed_c.cpp
IMGUI_API ImFont* AddFontFromMemoryCompressedBase85TTF(const char* compressed_font_data_base85, float size_pixels, const ImFontConfig* font_cfg = NULL, const ImWchar* glyph_ranges = NULL); // 'compressed_font_data_base85' still owned by caller. Compress with binary_to_compressed_c.cpp with -base85 paramaeter
IMGUI_API void ClearTexData(); // Clear the CPU-side texture data. Saves RAM once the texture has been copied to graphics memory.
IMGUI_API void ClearInputData(); // Clear the input TTF data (inc sizes, glyph ranges)
IMGUI_API void ClearFonts(); // Clear the ImGui-side font data (glyphs storage, UV coordinates)