Function ImFontAtlasBuildFinish

lib/imgui/imgui_draw.cpp:2280–2319

}

void ImFontAtlasBuildFinish(ImFontAtlas* atlas)
{
    // Render into our custom data block
    ImFontAtlasBuildRenderDefaultTexData(atlas);

    // Register custom rectangle glyphs
    for (int i = 0; i < atlas->CustomRects.Size; i++)
    {
        const ImFontAtlasCustomRect& r = atlas->CustomRects[i];
        if (r.Font == NULL || r.ID >= 0x110000)
            continue;

        IM_ASSERT(r.Font->ContainerAtlas == atlas);
        ImVec2 uv0, uv1;
        atlas->CalcCustomRectUV(&r, &uv0, &uv1);
        r.Font->AddGlyph((ImWchar)r.ID, r.GlyphOffset.x, r.GlyphOffset.y, r.GlyphOffset.x + r.Width, r.GlyphOffset.y + r.Height, uv0.x, uv0.y, uv1.x, uv1.y, r.GlyphAdvanceX);
    }

    // Build all fonts lookup tables
    for (int i = 0; i < atlas->Fonts.Size; i++)
        if (atlas->Fonts[i]->DirtyLookupTables)
            atlas->Fonts[i]->BuildLookupTable();

    // Ellipsis character is required for rendering elided text. We prefer using U+2026 (horizontal ellipsis).
    // However some old fonts may contain ellipsis at U+0085. Here we auto-detect most suitable ellipsis character.
    // FIXME: Also note that 0x2026 is currently seldomly included in our font ranges. Because of this we are more likely to use three individual dots.
    for (int i = 0; i < atlas->Fonts.size(); i++)
    {
        ImFont* font = atlas->Fonts[i];
        if (font->EllipsisChar != (ImWchar)-1)
            continue;
        const ImWchar ellipsis_variants[] = { (ImWchar)0x2026, (ImWchar)0x0085 };
        for (int j = 0; j < IM_ARRAYSIZE(ellipsis_variants); j++)
            if (font->FindGlyphNoFallback(ellipsis_variants[j]) != NULL) // Verify glyph exists
            {
                font->EllipsisChar = ellipsis_variants[j];
                break;
            }
    }
}

// Retrieve list of range (2 int per range, values are inclusive)
const ImWchar*   ImFontAtlas::GetGlyphRangesDefault()