Improve AssemblyEditor class

src/app/editor/assembly_editor.cc

@@ -1,13 +1,20 @@
 #include "assembly_editor.h"
 
+#include "core/constants.h"
+
 namespace yaze {
 namespace app {
 namespace editor {
 
 void AssemblyEditor::Update() {
-  SetEditorText();
   auto cpos = text_editor_.GetCursorPosition();
-  ImGui::Begin("ASM Editor", &file_is_loaded_);
+  ImGui::Begin("ASM Editor", &file_is_loaded_, ImGuiWindowFlags_MenuBar);
+  MENU_BAR()
+  DrawFileMenu();
+  DrawEditMenu();
+  END_MENU_BAR()
+
+  SetEditorText();
   ImGui::Text("%6d/%-6d %6d lines  | %s | %s | %s | %s", cpos.mLine + 1,
               cpos.mColumn + 1, text_editor_.GetTotalLines(),
               text_editor_.IsOverwrite() ? "Ovr" : "Ins",
@@ -19,10 +26,56 @@ void AssemblyEditor::Update() {
   ImGui::End();
 }
 
-void AssemblyEditor::ChangeActiveFile(const std::string & filename) {
+void AssemblyEditor::ChangeActiveFile(const std::string& filename) {
   current_file_ = filename;
 }
 
+void AssemblyEditor::DrawFileMenu() {
+  if (ImGui::BeginMenu("File")) {
+    if (ImGui::MenuItem("Open", "Ctrl+O")) {
+      ImGuiFileDialog::Instance()->OpenDialog(
+          "ChooseASMFileDlg", "Open ASM file", ".asm,.txt", ".");
+    }
+    if (ImGui::MenuItem("Save", "Ctrl+S")) {
+      // TODO: Implement this
+    }
+    ImGui::EndMenu();
+  }
+
+  if (ImGuiFileDialog::Instance()->Display("ChooseASMFileDlg")) {
+    if (ImGuiFileDialog::Instance()->IsOk()) {
+      ChangeActiveFile(ImGuiFileDialog::Instance()->GetFilePathName());
+    }
+    ImGuiFileDialog::Instance()->Close();
+  }
+}
+
+void AssemblyEditor::DrawEditMenu() {
+  if (ImGui::BeginMenu("Edit")) {
+    if (ImGui::MenuItem("Undo", "Ctrl+Z")) {
+      text_editor_.Undo();
+    }
+    if (ImGui::MenuItem("Redo", "Ctrl+Y")) {
+      text_editor_.Redo();
+    }
+    ImGui::Separator();
+    if (ImGui::MenuItem("Cut", "Ctrl+X")) {
+      text_editor_.Cut();
+    }
+    if (ImGui::MenuItem("Copy", "Ctrl+C")) {
+      text_editor_.Copy();
+    }
+    if (ImGui::MenuItem("Paste", "Ctrl+V")) {
+      text_editor_.Paste();
+    }
+    ImGui::Separator();
+    if (ImGui::MenuItem("Find", "Ctrl+F")) {
+      // TODO: Implement this.
+    }
+    ImGui::EndMenu();
+  }
+}
+
 void AssemblyEditor::SetEditorText() {
   if (!file_is_loaded_) {
     std::ifstream t(current_file_);
@@ -30,8 +83,8 @@ void AssemblyEditor::SetEditorText() {
       std::string str((std::istreambuf_iterator<char>(t)),
                       std::istreambuf_iterator<char>());
       text_editor_.SetText(str);
+      file_is_loaded_ = true;
     }
-    file_is_loaded_ = true;
   }
 }