From e882367d80a0bcdd09b5412d908b0fdb6b6bfe34 Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Tue, 17 Mar 2015 13:58:32 -0400
Subject: Implemented undo/redo framework in map editor

---
 tools/mapedit/src/undo.cpp | 95 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 tools/mapedit/src/undo.cpp

(limited to 'tools/mapedit/src/undo.cpp')

diff --git a/tools/mapedit/src/undo.cpp b/tools/mapedit/src/undo.cpp
new file mode 100644
index 0000000..bcf7b92
--- /dev/null
+++ b/tools/mapedit/src/undo.cpp
@@ -0,0 +1,95 @@
+#include "undo.h"
+#include "frame.h"
+
+Undoable::Undoable(std::string title, std::function<void ()> forward, std::function<void ()> backward)
+{
+  this->title = title;
+  this->forward = forward;
+  this->backward = backward;
+}
+
+std::string Undoable::getTitle() const
+{
+  return title;
+}
+
+void Undoable::apply()
+{
+  forward();
+}
+
+void Undoable::undo()
+{
+  backward();
+}
+
+wxBEGIN_EVENT_TABLE(UndoableTextBox, wxTextCtrl)
+  EVT_SET_FOCUS(UndoableTextBox::OnFocus)
+  EVT_KILL_FOCUS(UndoableTextBox::OnKillFocus)
+wxEND_EVENT_TABLE()
+
+UndoableTextBox::UndoableTextBox(wxWindow* parent, wxWindowID id, wxString startText, std::string undoType, MapeditFrame* realParent, wxPoint pos, wxSize size, long style) : wxTextCtrl(parent, id, startText, pos, size, style)
+{
+  this->undoText = undoType;
+  this->realParent = realParent;
+  
+  Init();
+}
+
+void UndoableTextBox::Init()
+{
+  Bind(wxEVT_TEXT, &UndoableTextBox::OnTextChange, this);
+  
+  curText = GetValue();
+}
+
+void UndoableTextBox::OnFocus(wxFocusEvent& event)
+{
+  curText = GetValue();
+  
+  event.Skip();
+}
+
+void UndoableTextBox::OnKillFocus(wxFocusEvent& event)
+{
+  undo.reset();
+  
+  event.Skip();
+}
+
+void UndoableTextBox::OnTextChange(wxCommandEvent& event)
+{
+  if (!undo)
+  {
+    auto tempUndo = std::make_shared<Undo>(undoText, curText, *this);
+    
+    realParent->commitAfter(tempUndo);
+    
+    undo = tempUndo;
+  }
+  
+  undo->newText = GetValue();
+  curText = GetValue();
+  
+  event.Skip();
+}
+
+UndoableTextBox::Undo::Undo(std::string title, wxString origText, UndoableTextBox& parent) : origText(origText), parent(parent)
+{
+  this->title = title;
+}
+
+void UndoableTextBox::Undo::apply()
+{
+  parent.ChangeValue(newText);
+}
+
+void UndoableTextBox::Undo::undo()
+{
+  parent.ChangeValue(origText);
+}
+
+void UndoableTextBox::Undo::endChanges()
+{
+  parent.undo.reset();
+}
-- 
cgit 1.4.1