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Font: Fixed high-level ImGui::CalcTextSize() used by most widgets from erroneously subtracting 1.0f*scale to calculated text width. Among noticeable side-effects, it would make sequences of repeated Text/SameLine calls not align the same as a single call, and create mismatch between high-level size calculation and those performed with the lower-level ImDrawList api. (#792)

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This commit is contained in:
omar
2019-02-12 22:43:56 +01:00
parent 0640b6e67c
commit 417cf2237f
2 changed files with 5 additions and 5 deletions
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4
docs/CHANGELOG.txt
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@@ -63,6 +63,10 @@ Other Changes:
- Window: Fixed initial width of collapsed windows not taking account of contents width (broken in 1.67). (#2336, #176)
- ListBox: Better optimized when clipped / non-visible.
- InputTextMultiline: Better optimized when clipped / non-visible.
- Font: Fixed high-level ImGui::CalcTextSize() used by most widgets from erroneously subtracting 1.0f*scale to
calculated text width. Among noticeable side-effects, it would make sequences of repeated Text/SameLine calls
not align the same as a single call, and create mismatch between high-level size calculation and those performed
with the lower-level ImDrawList api. (#792) [@SlNPacifist]
- ImDrawList: Fixed AddCircle(), AddCircleFilled() angle step being off, which was visible when drawing a "circle"
with a small number of segments (e.g. an hexagon). (#2287) [@baktery]
- ImGuiTextBuffer: Added append() function (unformatted).

6
imgui.cpp
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@@ -3909,11 +3909,7 @@ ImVec2 ImGui::CalcTextSize(const char* text, const char* text_end, bool hide_tex
return ImVec2(0.0f, font_size);
ImVec2 text_size = font->CalcTextSizeA(font_size, FLT_MAX, wrap_width, text, text_display_end, NULL);
// Cancel out character spacing for the last character of a line (it is baked into glyph->AdvanceX field)
const float font_scale = font_size / font->FontSize;
const float character_spacing_x = 1.0f * font_scale;
if (text_size.x > 0.0f)
text_size.x -= character_spacing_x;
// Round
text_size.x = (float)(int)(text_size.x + 0.95f);
return text_size;