From aebfe653525e5449cfd50f4f50dd92e2a72fe430 Mon Sep 17 00:00:00 2001
From: GigabiteStudios <ceo@gigabitestudios.xyz>
Date: Fri, 19 Jun 2026 00:27:45 -0500
Subject: [PATCH] fix(ui): ellipsize blame attribution text

---
 src/ui/diff_viewer.cpp | 38 ++++++++++++++++++++++++++++++++++----
 1 file changed, 34 insertions(+), 4 deletions(-)

diff --git a/src/ui/diff_viewer.cpp b/src/ui/diff_viewer.cpp
index 397a264..bb6236a 100644
--- a/src/ui/diff_viewer.cpp
+++ b/src/ui/diff_viewer.cpp
@@ -623,6 +623,32 @@ void drawCodeLineNumber(int value, float x, float y, ImU32 color) {
     const std::string text = std::to_string(value);
     ImGui::GetWindowDrawList()->AddText({x, y}, color, text.c_str());
 }
+
+std::string ellipsizeText(std::string_view text, float max_width) {
+    if (text.empty() || max_width <= 0.0f) return {};
+
+    std::string display{text};
+    if (ImGui::CalcTextSize(display.c_str()).x <= max_width) return display;
+
+    constexpr const char* overflow = "...";
+    const float overflow_width = ImGui::CalcTextSize(overflow).x;
+    if (overflow_width >= max_width) return overflow;
+
+    while (!display.empty() && ImGui::CalcTextSize(display.c_str()).x + overflow_width > max_width) {
+        display.pop_back();
+    }
+    display += overflow;
+    return display;
+}
+
+void drawEllipsizedText(ImDrawList* draw, ImVec2 position, ImU32 color, std::string_view text,
+        float max_width, const ImVec2& clip_min, const ImVec2& clip_max) {
+    const std::string display = ellipsizeText(text, max_width);
+    if (display.empty()) return;
+    draw->PushClipRect(clip_min, clip_max, true);
+    draw->AddText(position, color, display.c_str());
+    draw->PopClipRect();
+}
 }
 
 void DiffViewer::open(RepositoryView& repository, GitManager& manager, const std::string& path,
@@ -1049,13 +1075,17 @@ void DiffViewer::draw(RepositoryView& repository, GitManager& manager, AvatarCac
                             accent, scaled(3.0f, scale));
                     }
                     const float info_x = avatar_min.x + avatar_size + scaled(8.0f, scale);
+                    const float info_right = line_minimum.x + info_width - scaled(10.0f, scale);
+                    const float info_text_width = std::max(0.0f, info_right - info_x);
+                    const ImVec2 info_clip_min{info_x, line_minimum.y};
+                    const ImVec2 info_clip_max{info_right, line_maximum.y};
                     const std::string author = line.author.empty() ? "Unknown author" : line.author;
                     std::string summary = line.summary.empty() ? "(no summary)" : line.summary;
                     if (!line.date.empty()) summary += "  " + line.date;
-                    draw->AddText({info_x, line_minimum.y + scaled(1.0f, scale)},
-                        IM_COL32(216, 220, 226, 255), author.c_str());
-                    draw->AddText({info_x, line_minimum.y + scaled(10.0f, scale)},
-                        IM_COL32(134, 140, 151, 255), summary.c_str());
+                    drawEllipsizedText(draw, {info_x, line_minimum.y + scaled(1.0f, scale)},
+                        IM_COL32(216, 220, 226, 255), author, info_text_width, info_clip_min, info_clip_max);
+                    drawEllipsizedText(draw, {info_x, line_minimum.y + scaled(10.0f, scale)},
+                        IM_COL32(134, 140, 151, 255), summary, info_text_width, info_clip_min, info_clip_max);
                 } else {
                     draw->AddText({line_minimum.x + scaled(16.0f, scale), line_minimum.y + scaled(2.0f, scale)},
                         IM_COL32(92, 99, 110, 255), "...");