Fonts: Fixed font ascent and descent calculation when a font hits exact integer values. (#7399, #7404)
diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index 189c9f5..e4af785 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -43,8 +43,11 @@
Other changes:
+- Fonts: Fixed font ascent and descent calculation when a font hits exact integer values.
+ It is possible that some prior manual use of ImFontConfig::GlyphOffset may become
+ duplicate with this fix. (#7399, #7404) [@GamingMinds-DanielC]
- Text, DrawList: Improved handling of long single-line wrapped text. Faster and
- mitigitate issues with reading vertex indexing limits with 16-bit indices.
+ mitigitate issues with reading vertex indexing limits with 16-bit indices. (#7496, #5720)
- Backends: SDL3: Fixed text inputs. Re-enable calling SDL_StartTextInput()/SDL_StopTextInput()
as SDL3 no longer enables it by default. (#7452, #6306, #6071, #1953) [@Green-Sky]
diff --git a/imgui_draw.cpp b/imgui_draw.cpp
index f3da385..7861d4e 100644
--- a/imgui_draw.cpp
+++ b/imgui_draw.cpp
@@ -2984,8 +2984,8 @@
int unscaled_ascent, unscaled_descent, unscaled_line_gap;
stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
- const float ascent = ImTrunc(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
- const float descent = ImTrunc(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
+ const float ascent = ImCeil(unscaled_ascent * font_scale);
+ const float descent = ImFloor(unscaled_descent * font_scale);
ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
const float font_off_x = cfg.GlyphOffset.x;
const float font_off_y = cfg.GlyphOffset.y + IM_ROUND(dst_font->Ascent);
