[DEBUG] Display details for a single font, called by ShowStyleEditor().
| 22097 | |
| 22098 | // [DEBUG] Display details for a single font, called by ShowStyleEditor(). |
| 22099 | void ImGui::DebugNodeFont(ImFont* font) |
| 22100 | { |
| 22101 | bool opened = TreeNode(font, "Font: \"%s\": %.2f px, %d glyphs, %d sources(s)", |
| 22102 | font->Sources ? font->Sources[0].Name : "", font->FontSize, font->Glyphs.Size, font->SourcesCount); |
| 22103 | |
| 22104 | // Display preview text |
| 22105 | if (!opened) |
| 22106 | Indent(); |
| 22107 | Indent(); |
| 22108 | PushFont(font); |
| 22109 | Text("The quick brown fox jumps over the lazy dog"); |
| 22110 | PopFont(); |
| 22111 | if (!opened) |
| 22112 | { |
| 22113 | Unindent(); |
| 22114 | Unindent(); |
| 22115 | return; |
| 22116 | } |
| 22117 | if (SmallButton("Set as default")) |
| 22118 | GetIO().FontDefault = font; |
| 22119 | |
| 22120 | // Display details |
| 22121 | SetNextItemWidth(GetFontSize() * 8); |
| 22122 | DragFloat("Font scale", &font->Scale, 0.005f, 0.3f, 2.0f, "%.1f"); |
| 22123 | SameLine(); MetricsHelpMarker( |
| 22124 | "Note that the default embedded font is NOT meant to be scaled.\n\n" |
| 22125 | "Font are currently rendered into bitmaps at a given size at the time of building the atlas. " |
| 22126 | "You may oversample them to get some flexibility with scaling. " |
| 22127 | "You can also render at multiple sizes and select which one to use at runtime.\n\n" |
| 22128 | "(Glimmer of hope: the atlas system will be rewritten in the future to make scaling more flexible.)"); |
| 22129 | Text("Ascent: %f, Descent: %f, Height: %f", font->Ascent, font->Descent, font->Ascent - font->Descent); |
| 22130 | char c_str[5]; |
| 22131 | Text("Fallback character: '%s' (U+%04X)", ImTextCharToUtf8(c_str, font->FallbackChar), font->FallbackChar); |
| 22132 | Text("Ellipsis character: '%s' (U+%04X)", ImTextCharToUtf8(c_str, font->EllipsisChar), font->EllipsisChar); |
| 22133 | const int surface_sqrt = (int)ImSqrt((float)font->MetricsTotalSurface); |
| 22134 | Text("Texture Area: about %d px ~%dx%d px", font->MetricsTotalSurface, surface_sqrt, surface_sqrt); |
| 22135 | for (int config_i = 0; config_i < font->SourcesCount; config_i++) |
| 22136 | if (font->Sources) |
| 22137 | { |
| 22138 | const ImFontConfig* src = &font->Sources[config_i]; |
| 22139 | int oversample_h, oversample_v; |
| 22140 | ImFontAtlasBuildGetOversampleFactors(src, &oversample_h, &oversample_v); |
| 22141 | BulletText("Input %d: \'%s\', Oversample: (%d=>%d,%d=>%d), PixelSnapH: %d, Offset: (%.1f,%.1f)", |
| 22142 | config_i, src->Name, src->OversampleH, oversample_h, src->OversampleV, oversample_v, src->PixelSnapH, src->GlyphOffset.x, src->GlyphOffset.y); |
| 22143 | } |
| 22144 | |
| 22145 | // Display all glyphs of the fonts in separate pages of 256 characters |
| 22146 | { |
| 22147 | if (TreeNode("Glyphs", "Glyphs (%d)", font->Glyphs.Size)) |
| 22148 | { |
| 22149 | ImDrawList* draw_list = GetWindowDrawList(); |
| 22150 | const ImU32 glyph_col = GetColorU32(ImGuiCol_Text); |
| 22151 | const float cell_size = font->FontSize * 1; |
| 22152 | const float cell_spacing = GetStyle().ItemSpacing.y; |
| 22153 | for (unsigned int base = 0; base <= IM_UNICODE_CODEPOINT_MAX; base += 256) |
| 22154 | { |
| 22155 | // Skip ahead if a large bunch of glyphs are not present in the font (test in chunks of 4k) |
| 22156 | // This is only a small optimization to reduce the number of iterations when IM_UNICODE_MAX_CODEPOINT |
nothing calls this directly
no test coverage detected