From 4d5e3dc0ea982cced173ed4705336cf33718114b Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Sat, 8 Oct 2016 16:59:11 -0400
Subject: [PATCH] continued insertion testing, not sure i like this method

---
 src/core/PieceTable.cc | 29 +++++++++++++++++++++++++++++
 src/core/PieceTable.h  |  1 +
 src/gui/Window.cc      |  7 +++++++
 3 files changed, 37 insertions(+)

diff --git a/src/core/PieceTable.cc b/src/core/PieceTable.cc
index eaee9ae..5df8a58 100644
--- a/src/core/PieceTable.cc
+++ b/src/core/PieceTable.cc
@@ -382,11 +382,40 @@ void PieceTable::begin_insert(const Cursor & cursor, bool before)
         change->links[1][1][1] = piece->next;
 
         apply_change(change, 1u);
+
+        m_insert_before_piece = new_piece_1;
     }
+
+    m_inserting_piece = nullptr;
 }
 
 void PieceTable::insert_code_point(uint32_t code_point)
 {
+    if (m_inserting_piece == nullptr)
+    {
+        m_inserting_piece = add_piece();
+        m_inserting_piece->start = &m_append_buffer[m_append_buffer_index];
+        m_inserting_piece->length = 0u;
+        m_inserting_piece->flags = 0u;
+        m_inserting_piece->prev = m_insert_before_piece;
+        m_inserting_piece->next = m_insert_before_piece->next;
+
+        Change * change = add_change();
+        change->links[0][0][0] = m_insert_before_piece;
+        change->links[0][0][1] = m_insert_before_piece->next;
+        change->links[0][1][0] = nullptr;
+        change->links[0][1][1] = nullptr;
+        change->links[1][0][0] = m_insert_before_piece;
+        change->links[1][0][1] = m_inserting_piece;
+        change->links[1][1][0] = m_inserting_piece;
+        change->links[1][1][1] = m_insert_before_piece->next;
+
+        apply_change(change, 1u);
+    }
+
+    uint8_t bytes = Encoding::encode(code_point, encoding, &m_append_buffer[m_append_buffer_index]);
+    m_inserting_piece->length += bytes;
+    m_append_buffer_index += bytes;
 }
 
 void PieceTable::end_insert()
diff --git a/src/core/PieceTable.h b/src/core/PieceTable.h
index af385da..936c512 100644
--- a/src/core/PieceTable.h
+++ b/src/core/PieceTable.h
@@ -188,6 +188,7 @@ protected:
     PagedBuffer<Change> m_changes;
     uint32_t m_changes_index;
     Piece * m_insert_before_piece;
+    Piece * m_inserting_piece;
 
     std::list<std::shared_ptr<Cursor>> m_cursors;
 };
diff --git a/src/gui/Window.cc b/src/gui/Window.cc
index 5996d6b..dce0f1b 100644
--- a/src/gui/Window.cc
+++ b/src/gui/Window.cc
@@ -277,6 +277,13 @@ void Window::handle_key(uint32_t scancode, uint32_t mod)
     case SDL_SCANCODE_I:
         m_buffer->piece_table->begin_insert(*m_cursor, true);
         break;
+    case SDL_SCANCODE_O:
+        m_buffer->piece_table->insert_code_point('*');
+        redraw();
+        break;
+    case SDL_SCANCODE_A:
+        m_buffer->piece_table->begin_insert(*m_cursor, false);
+        break;
     }
 }