Rework partial line display logic

Instead of highlighting full lines and then trim them to make them
fit in the window, highlight only the visible portion, and rely on
the compute_display_setup system introduced for wrapping to setup
our buffer range correctly

1 files changed, 2 insertions, 6 deletions

diff --git a/src/display_buffer.hh b/src/display_buffer.hh
index 981f4960..ac6d4e82 100644
--- a/src/display_buffer.hh
+++ b/src/display_buffer.hh
@@ -31,12 +31,10 @@ public:
     enum Type { Range, ReplacedRange, Text };
 
     DisplayAtom(const Buffer& buffer, BufferCoord begin, BufferCoord end)
-        : m_type(Range), m_buffer(&buffer), m_range{begin, end}
-     { check_invariant(); }
+        : m_type(Range), m_buffer(&buffer), m_range{begin, end} {}
 
     DisplayAtom(String str, Face face = Face{})
-        : m_type(Text), m_text(std::move(str)), face(face)
-     { check_invariant(); }
+        : m_type(Text), m_text(std::move(str)), face(face) {}
 
     StringView content() const;
     ColumnCount length() const;
@@ -72,8 +70,6 @@ public:
     void trim_begin(ColumnCount count);
     void trim_end(ColumnCount count);
 
-    void check_invariant() const;
-
     bool operator==(const DisplayAtom& other) const
     {
         return face == other.face and type() == other.type() and