w

src/terminal/Grid.h

@@ -636,6 +636,11 @@ class Grid
     bool reflowOnResize() const noexcept { return reflowOnResize_; }
     void setReflowOnResize(bool _enabled) { reflowOnResize_ = _enabled; }
 
+    bool isLineWrapped(LineOffset _line) const noexcept
+    {
+        return lines_.at(realLineOffset(_line)).size() > screenSize_.columns;
+    }
+
     LineCount historyLineCount() const noexcept
     {
         return linesUsed_ - screenSize_.lines;

src/terminal/Screen.cpp

@@ -1495,13 +1495,13 @@ void Screen::captureBuffer(int _lineCount, bool _logicalLines)
     auto capturedBuffer = std::string();
     auto writer = VTWriter([&](auto buf, auto len) { capturedBuffer += string_view(buf, len); });
 
-    // TODO: when capturing _lineCount < screenSize.lines, start at the lowest non-empty line.
-    auto const relativeStartLine = _logicalLines ? grid().computeRelativeLineNumberFromBottom(_lineCount)
-                                                 : unbox<int>(size_.lines) - _lineCount + 1;
-    auto const startLine = clamp(
-        1 - unbox<int>(historyLineCount()),
-        relativeStartLine,
-        unbox<int>(size_.lines));
+    // XXX
+    // if we want 15 logical lines but only 2 real lines are present, then
+    // the bottom line is taken fully and 14 virtual lines from the top real line.
+
+    auto const relativeStartLineOffset = _logicalLines
+        ? grid().lineAt(5).end_offset() - size_.columns.as<int>() * _lineCount
+        : unbox<int>(size_.lines) - _lineCount + 1;
 
     // dumpState();