Panel management code moved from Editor class into the PanelManager class

WorldView panel does not currently show up because the dockspace is not fully set up yet.

src/core/core.cpp

@@ -68,7 +68,7 @@ namespace lunarium
         mpInstance->mpWindow->GetPosition(&mpInstance->mState.Display.WindowStartPosition.X,
                                           &mpInstance->mState.Display.WindowStartPosition.Y);
 
-        mpInstance->mState.SaveToFile();
+        //mpInstance->mState.SaveToFile();
   
         // Run Mode shuts down first
         mpInstance->mpRunMode->Shutdown();

src/run_modes/editor/CMakeLists.txt

@@ -2,6 +2,7 @@
 # Source Files
 set(EDITOR_SRC
 "editor.cpp"
+"panel_manager.cpp"
 "project/project.cpp" 
 "panels/iPanel.cpp"
 "panels/mainPanel.cpp"

src/run_modes/editor/editor.cpp

@@ -8,18 +8,14 @@
 
 #include "editor.h"
 
-#include "panels/mainPanel.h"
+#include "panel_manager.h"
 #include <core/core.h>
 #include <utils/logger.h>
 #include <gui/fileBrowser.h>
 #include <internal_data/dataManager.h>
 
-// Panels
-#include "panels/about.h"
+
 #include "panels/assetBrowser.h"
-#include "panels/worldTree.h"
-#include "panels/worldView.h"
-#include "panels/propertiesView.h"
 
 // Tools
 #include "tools/map_editor/map_editor.h"
@@ -30,7 +26,7 @@ namespace editor
 {
 
     Editor::Editor()
-        : mLogCat(-1), mpMainPanel(nullptr), mpFileBrowser(nullptr), mpPath(nullptr), mDoNewProject(false), mDoOpenProject(false),
+        : mLogCat(-1), mpFileBrowser(nullptr), mpPath(nullptr), mDoNewProject(false), mDoOpenProject(false),
         mDoSaveProject(false), mDoSaveAs(false), mpMapEditor(nullptr)
     {
     }
@@ -38,35 +34,27 @@ namespace editor
     OpRes Editor::Initialize()
     {
         mLogCat = Logger::RegisterCategory("EDITOR");
-        mpMainPanel = &MainPanel::GetInstance();
-        mpMainPanel->SetEditor(this);
 
         // Initialize internal data
         DataManager::Initialize();
 
-        CreatePanels();
+        PanelManager::GetInstance().Initialize(this);
 
         return OpRes::OK();
     }
     
     void Editor::Shutdown()
     {
-        DestoryPanels();
         DataManager::Shutdown();
-        MainPanel::FreeInstance();
+        PanelManager::GetInstance().Shutdown();
+        PanelManager::FreeInstance();
 
     }
     
     void Editor::OnTick(double delta)
     {
         // Panels
-        for (auto iter = mPanels.begin(); iter != mPanels.end(); iter++)
-        {
-            if (iter->second->IsOpen())
-            {
-                iter->second->Update(delta);
-            }
-        }
+        PanelManager::GetInstance().OnTick(delta);
 
         // Tools
         if (mpMapEditor)
@@ -79,15 +67,7 @@ namespace editor
     
     void Editor::OnRender(lunarium::IGraphics* g)
     {
-        mpMainPanel->DoFrame();
-
-        for (auto iter = mPanels.begin(); iter != mPanels.end(); iter++)
-        {
-            if (iter->second->IsOpen())
-            {
-                iter->second->DoFrame();
-            }
-        }
+        PanelManager::GetInstance().OnRender(g);
 
         if (mpMapEditor)
         {
@@ -129,25 +109,7 @@ namespace editor
     ////////////////////////////////////////////////////////////
     //				HELPER METHODS
     ////////////////////////////////////////////////////////////
-    void Editor::CreatePanels()
-    {
-        mPanels[PanelType::PT_ABOUT] = new AboutPanel;
-        mPanels[PanelType::PT_ASSET_BROWSER] = new AssetBrowser("");
-        mPanels[PanelType::PT_WORLD_TREE] = new WorldTree();
-        mPanels[PanelType::PT_WORLD_VIEW] = new WorldView();
-        mPanels[PanelType::PT_PROPERTIES_VIEW] = new PropertiesView();
-    }
 
-    void Editor::DestoryPanels()
-    {
-        delete mPanels[PanelType::PT_ABOUT];
-        delete mPanels[PanelType::PT_ASSET_BROWSER];
-        delete mPanels[PanelType::PT_WORLD_TREE];
-        delete mPanels[PanelType::PT_WORLD_VIEW];
-        delete mPanels[PanelType::PT_PROPERTIES_VIEW];
-
-        mPanels.clear();
-    }
 
     void Editor::DestroyTools()
     {
@@ -190,7 +152,7 @@ namespace editor
                         {
                             Logger::Log(mLogCat, LogLevel::ERROR, "Could not create a new project: %s", result.Description);
                         }
-                        ((AssetBrowser*)mPanels[PanelType::PT_ASSET_BROWSER])->SetAssetDirectory(*mpPath / std::filesystem::path("contents/assets"));
+                        ((AssetBrowser*)PanelManager::GetInstance().GetPanel(PanelType::PT_ASSET_BROWSER))->SetAssetDirectory(*mpPath / std::filesystem::path("contents/assets"));
                     }
                     else
                     {
@@ -235,7 +197,7 @@ namespace editor
                         {
                             Logger::Log(mLogCat, LogLevel::ERROR, "Could not open project: %s -- reason: %s", mpPath->string().c_str(), result.Description);
                         }
-                        ((AssetBrowser*)mPanels[PanelType::PT_ASSET_BROWSER])->SetAssetDirectory(mpPath->parent_path() / std::filesystem::path("contents/assets"));
+                        ((AssetBrowser*)PanelManager::GetInstance().GetPanel(PanelType::PT_ASSET_BROWSER))->SetAssetDirectory(mpPath->parent_path() / std::filesystem::path("contents/assets"));
                     }
                     else
                     {
@@ -297,7 +259,7 @@ namespace editor
 
     void Editor::ShowAboutPanel()
     {
-        mPanels[PanelType::PT_ABOUT]->SetOpen(true);
+        PanelManager::GetInstance().OpenPanel(PanelType::PT_ABOUT);
     }
 
     

src/run_modes/editor/editor.h

@@ -30,7 +30,6 @@ namespace lunarium
     };
     
     class MapEditor;
-    class MainPanel;
     class Editor : public iRunMode
     {
     public:
@@ -60,8 +59,6 @@ namespace lunarium
         
     private:    // Data
         uint32_t mLogCat;
-        MainPanel* mpMainPanel;
-        std::map<PanelType, Panel*> mPanels;
 
         Project mProject;
 

src/run_modes/editor/panel_manager.cpp

@@ -0,0 +1,162 @@
+/******************************************************************************
+*	File		-	panel_manager.cpp
+*	Author		-	Joey Pollack
+*	Date		-	2022/02/07 (y/m/d)
+*	Mod Date	-	2022/02/07 (y/m/d)
+*	Description	-	Manage the editor panels
+******************************************************************************/
+
+#include "panel_manager.h"
+#include "editor.h"
+#include <utils/logger.h>
+
+// Panels
+#include "panels/about.h"
+#include "panels/assetBrowser.h"
+#include "panels/worldTree.h"
+#include "panels/worldView.h"
+#include "panels/propertiesView.h"
+
+namespace lunarium { namespace editor
+{
+    PanelManager* PanelManager::mpInstance = nullptr;
+    PanelManager& PanelManager::GetInstance()
+    {
+        if (!mpInstance)
+        {
+            mpInstance = new PanelManager();
+        }
+
+        return *mpInstance;
+    }
+
+    void PanelManager::FreeInstance()
+    {
+        delete mpInstance;
+        mpInstance = nullptr;
+    }
+    
+
+    PanelManager::PanelManager()
+        : mpEditor(nullptr), mpMainPanel(nullptr)
+    {
+
+    }
+
+    OpRes PanelManager::Initialize(Editor* editor)
+    {
+        mpEditor = editor;
+
+        
+        mpMainPanel = &MainPanel::GetInstance();
+        mpMainPanel->SetEditor(mpEditor);
+
+        CreatePanels();
+
+        return OpRes::OK();
+    }
+
+    void PanelManager::Shutdown()
+    {
+        DestoryPanels();
+        MainPanel::FreeInstance();
+    }
+
+    void PanelManager::OpenPanel(PanelType type)
+    {
+        Panel* p = GetPanel(type);
+        if (!p || p->IsOpen())
+        {
+            return;
+        }
+
+        p->SetOpen(true);
+    }
+
+    void PanelManager::ClosePanel(PanelType type)
+    {
+        Panel* p = GetPanel(type);
+        if (!p || !p->IsOpen())
+        {
+            return;
+        }
+
+        p->SetOpen(false);
+    }
+
+    bool PanelManager::IsOpen(PanelType type)
+    {
+        Panel* p = GetPanel(type);
+        if (!p)
+        {
+            return false;
+        }
+
+        return p->IsOpen();
+    }
+
+    Panel* PanelManager::GetPanel(PanelType type)
+    {
+        auto iter = mPanels.find(type);
+        if (iter != mPanels.end())
+        {
+            return iter->second;
+        }
+
+        Logger::Log(mpEditor->GetLogCat(), LogLevel::WARNING, "Requested panel not found: %d", type);
+        return nullptr;
+    }
+
+    const MainPanel::DockSpaces& PanelManager::GetDockSpaces() const
+    {
+        return mpMainPanel->GetDockSpaces();
+    }
+    
+    void PanelManager::OnTick(double delta)
+    {
+        for (auto iter = mPanels.begin(); iter != mPanels.end(); iter++)
+        {
+            if (iter->second->IsOpen())
+            {
+                iter->second->Update(delta);
+            }
+        }
+    }
+    
+    void PanelManager::OnRender(lunarium::IGraphics* g)
+    {
+        mpMainPanel->DoFrame();
+
+        for (auto iter = mPanels.begin(); iter != mPanels.end(); iter++)
+        {
+            if (iter->second->IsOpen())
+            {
+                iter->second->DoFrame();
+            }
+        }
+    }
+
+    ////////////////////////////////////////////////////////////
+    //				HELPER METHODS
+    ////////////////////////////////////////////////////////////
+
+    void PanelManager::CreatePanels()
+    {
+        mPanels[PanelType::PT_ABOUT] = new AboutPanel;
+        mPanels[PanelType::PT_ASSET_BROWSER] = new AssetBrowser("");
+        mPanels[PanelType::PT_WORLD_TREE] = new WorldTree();
+        mPanels[PanelType::PT_WORLD_VIEW] = new WorldView();
+        mPanels[PanelType::PT_PROPERTIES_VIEW] = new PropertiesView();
+    }
+
+    void PanelManager::DestoryPanels()
+    {
+        delete mPanels[PanelType::PT_ABOUT];
+        delete mPanels[PanelType::PT_ASSET_BROWSER];
+        delete mPanels[PanelType::PT_WORLD_TREE];
+        delete mPanels[PanelType::PT_WORLD_VIEW];
+        delete mPanels[PanelType::PT_PROPERTIES_VIEW];
+
+        mPanels.clear();
+    }
+}}

src/run_modes/editor/panel_manager.h

@@ -0,0 +1,56 @@
+/******************************************************************************
+*	File		-	panel_manager.h
+*	Author		-	Joey Pollack
+*	Date		-	2022/02/07 (y/m/d)
+*	Mod Date	-	2022/02/07 (y/m/d)
+*	Description	-	Manage the editor panels
+******************************************************************************/
+
+#ifndef PANEL_MANAGER_H_
+#define PANEL_MANAGER_H_
+
+#include <utils/opRes.h>
+#include "panels/mainPanel.h"
+#include "panels/iPanel.h"
+#include <map>
+
+namespace lunarium{
+    class IGraphics;
+namespace editor
+{
+    class Editor;
+    class PanelManager
+    {
+
+    public:
+        static PanelManager& GetInstance();
+        static void FreeInstance();
+        OpRes Initialize(Editor* editor);
+        void Shutdown();
+
+        void OpenPanel(PanelType type);
+        void ClosePanel(PanelType type);
+        bool IsOpen(PanelType type);
+        Panel* GetPanel(PanelType type);
+
+        const MainPanel::DockSpaces& GetDockSpaces() const;
+
+        void OnTick(double delta);
+        void OnRender(lunarium::IGraphics* g);
+
+    private:
+        Editor* mpEditor;
+        MainPanel* mpMainPanel;
+        std::map<PanelType, Panel*> mPanels;
+
+    private:
+        static PanelManager* mpInstance;
+        PanelManager();
+
+        void CreatePanels();
+        void DestoryPanels();
+
+    };
+}}
+
+#endif  // PANEL_MANAGER_H_

src/run_modes/editor/panels/about.cpp

@@ -9,6 +9,7 @@
 #include "about.h"
 #include <dearimgui/imgui.h>
 #include <core/version.h>
+#include <editor/editor.h>
 
 namespace lunarium
 {

src/run_modes/editor/panels/assetBrowser.cpp

@@ -8,6 +8,7 @@
 
 #include "assetBrowser.h"
 #include <dearimgui/imgui.h>
+#include <editor/editor.h>
 
 namespace lunarium
 {

src/run_modes/editor/panels/iPanel.cpp

@@ -9,12 +9,13 @@
 #include "iPanel.h"
 
 #include <dearimgui/imgui.h>
+#include <editor/editor.h>
 
 namespace lunarium
 {
 namespace editor
 {
-    Panel::Panel(PanelType type, bool isOpen)
+    Panel::Panel(PanelType type,bool isOpen)
         : mType(type), mIsOpen(isOpen)
     {
 

src/run_modes/editor/panels/iPanel.h

@@ -13,6 +13,8 @@ namespace lunarium
 {
 namespace editor
 {
+    class Editor;
+
     enum PanelType
     {
         PT_MAIN,
@@ -41,6 +43,7 @@ namespace editor
     protected:
         PanelType mType;
         bool mIsOpen;
+        // Editor* mpEditor;
 
         int mX;
         int mY;

src/run_modes/editor/panels/mainPanel.cpp

@@ -11,6 +11,7 @@
 #include "../editor.h"
 #include <core/core.h>
 #include <dearimgui/imgui.h>
+#include <dearimgui/imgui_internal.h>   // To use the DockWindowXXX methods
 #include <utils/logger.h>
 
 namespace lunarium
@@ -46,6 +47,11 @@ namespace editor
         mpEditor = e;
     }
 
+    const MainPanel::DockSpaces& MainPanel::GetDockSpaces() const
+    {
+        return mDockSpaces;
+    }
+
     bool MainPanel::DoFrame()
     {
         if (!mIsOpen)
@@ -70,7 +76,8 @@ namespace editor
             return false;
         }
         
-        ImGui::DockSpaceOverViewport();
+        MakeDockSpaces();
+
         ImGui::PopStyleVar();
         ImGui::End();
 
@@ -100,6 +107,12 @@ namespace editor
         return true;
     }
 
+    void MainPanel::MakeDockSpaces()
+    {
+        mDockSpaces.Main = ImGui::DockSpace(ImGui::GetID("Lunarium Editor"));
+
+    }
+
     void MainPanel::DoMainMenu()
     {
         ImGui::BeginMainMenuBar();

src/run_modes/editor/panels/mainPanel.h

@@ -18,12 +18,24 @@ namespace editor
     class Editor;
     class MainPanel : public Panel
     {
+    public:
+        struct DockSpaces
+        {
+            unsigned int Main;
+            unsigned int Left;
+            unsigned int Right;
+            unsigned int Center;
+            unsigned int Top;
+            unsigned int Bottom;
+        };
+
     public:
         MainPanel();
         static MainPanel& GetInstance();
         static void FreeInstance();
 
         void SetEditor(Editor* e);
+        const DockSpaces& GetDockSpaces() const;
 
         // Returns false if the window is closed
         bool DoFrame();
@@ -35,9 +47,11 @@ namespace editor
 
     private:
         Editor* mpEditor;
+        DockSpaces mDockSpaces;
 
     private:    // HELPERS
         void DoMainMenu();
+        void MakeDockSpaces();
     };
 }
 }

src/run_modes/editor/panels/propertiesView.cpp

@@ -9,6 +9,7 @@
 
 #include "propertiesView.h"
 #include <dearimgui/imgui.h>
+#include <editor/editor.h>
 
 namespace lunarium { namespace editor 
 {

src/run_modes/editor/panels/worldTree.cpp

@@ -9,6 +9,7 @@
 #include "worldTree.h"
 #include <game/world/world.h>
 #include <dearimgui/imgui.h>
+#include <editor/editor.h>
 
 namespace lunarium
 {

src/run_modes/editor/panels/worldView.cpp

@@ -9,6 +9,8 @@
 #include "worldView.h"
 #include <game/world/world.h>
 #include <dearimgui/imgui.h>
+#include <editor/editor.h>
+#include "../panel_manager.h"
 
 namespace lunarium
 {
@@ -26,6 +28,7 @@ namespace editor
             return false;
 
         //ImGui::SetNextWindowPosition()
+        ImGui::SetNextWindowDockID(PanelManager::GetInstance().GetDockSpaces().Center, ImGuiCond_Appearing);
         if (!ImGui::Begin("World View", &mIsOpen, ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoScrollbar))
         {
             ImGui::End();

src/run_modes/editor/panels/worldView.h

@@ -17,6 +17,7 @@ namespace lunarium
     class World;
 namespace editor
 {
+    class Editor;
     class WorldView : public Panel
     {
     public:
@@ -28,6 +29,7 @@ namespace editor
 
     private:
         World* mpWorld;
+        Editor* mpEditor;
     };
     
 }}  // lunarium::editor