ImGui::Begin call moved to the Panel class

Adds PreBegin in case code needs to be run just before ImGui::Begin is called

src/core/core_console.cpp

@@ -15,7 +15,8 @@
 namespace lunarium
 {
     CoreConsole::CoreConsole()
-        : Console("Core Console"), mDockIsInit(false)
+        : Console("Core Console", ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar
+                                                | ImGuiWindowFlags_NoCollapse), mDockIsInit(false)
     {
 
     }
@@ -24,14 +25,10 @@ namespace lunarium
     {
     }
 
-    bool CoreConsole::DoFrame()
+    void CoreConsole::PreBegin()
     {
         InitDock();
         
-        if (!mIsOpen)
-            return false;
-            
-
         ImGuiViewport* pView = ImGui::GetMainViewport();
 
         float myHeight =  pView->WorkSize.y / 3.0f;
@@ -41,18 +38,11 @@ namespace lunarium
          ImGui::SetNextWindowPos(ImVec2(pView->WorkPos.x, y), ImGuiCond_Always);
          ImGui::SetNextWindowSize(ImVec2(pView->WorkSize.x, myHeight), ImGuiCond_Always);
         ImGui::SetNextWindowBgAlpha(alpha);
-        if (!ImGui::Begin(GetName(), &mIsOpen, ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar
-                                                | ImGuiWindowFlags_NoCollapse))
-        {
-            ImGui::End();
-            return mIsOpen;
     }
 
+    void CoreConsole::DoFrame()
+    {
         Console::DoFrame();
-        
-        ImGui::End();
-
-        return mIsOpen;
     }
 
     void CoreConsole::InitDock()

src/core/core_console.h

@@ -18,7 +18,8 @@ namespace lunarium
         public:
             CoreConsole();
             virtual ~CoreConsole();
-            bool DoFrame() override;
+            void DoFrame() override;
+            void PreBegin();
 
         private:
             void InitDock();

src/gui/console.cpp

@@ -43,8 +43,8 @@ namespace lunarium
     ////////////////////////////////////////////////////////////
     //				CONSOLE
     ////////////////////////////////////////////////////////////
-    Console::Console(const char* name)
+    Console::Console(const char* name, int window_flags)
-        : Panel(name, PanelDockZone::DDZ_NONE, false),
+        : Panel(name, PanelDockZone::DDZ_NONE, false, window_flags),
             mbNewCommand(false), mRecalledCommand(-1), mIsFocused(false), mListener(nullptr),
             mbOglDebug(false), mbInfoVerbose(false), mpListener(nullptr)
     {
@@ -67,20 +67,14 @@ namespace lunarium
     
     void Console::Update(float dt)
     {
-
-    }
-
-    bool Console::DoFrame()
-    {
-
         if (Core::Input().IsKeyDown(KeyCode::ESCAPE, true))
         {
             mRecalledCommand = -1;
         }
+    }
 
-
+    void Console::DoFrame()
-
+    {
-
         float history_height = ImGui::GetWindowSize().y - 45;
         ImGui::BeginChild("history", ImVec2(0, history_height), false, ImGuiWindowFlags_AlwaysVerticalScrollbar | ImGuiWindowFlags_NoMove);
         mIsFocused = ImGui::IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows);
@@ -156,8 +150,6 @@ namespace lunarium
         ImGui::EndChild();
 
         //mAlpha = mIsFocused ? 0.75f : 0.5f;
-
-        return mIsOpen;
     }
 
     const std::vector<std::string>* Console::GetCommandHistory() const

src/gui/console.h

@@ -32,10 +32,10 @@ namespace lunarium
     class Console : public Panel
     {
     public:
-        Console(const char* name);
+        Console(const char* name, int window_flags);
         virtual ~Console();
         virtual void Update(float dt);
-        virtual bool DoFrame();
+        virtual void DoFrame();
 
         bool IsFocused() const;
 

src/gui/panel.cpp

@@ -12,8 +12,8 @@
 
 namespace lunarium
 {
-    Panel::Panel(std::string name, PanelDockZone dock_zone, bool isOpen)
+    Panel::Panel(std::string name, PanelDockZone dock_zone, bool isOpen, int window_flags)
-        : mIsOpen(isOpen), mPanelName(name), mDockZone(dock_zone)
+        : mIsOpen(isOpen), mPanelName(name), mDockZone(dock_zone), mWindowFlags(window_flags)
     {
 
     }
@@ -33,6 +33,12 @@ namespace lunarium
         return mDockZone;
     }
 
+    
+    void Panel::SetWindowFlags(int flags)
+    {
+        mWindowFlags = flags;
+    }
+
     void Panel::SetOpen(bool isOpen)
     {   
         mIsOpen = isOpen;
@@ -43,7 +49,6 @@ namespace lunarium
         return mIsOpen;
     }
     
-    
     void Panel::GetPosition(int& x, int& y) const
     {
         x = mX;
@@ -56,11 +61,74 @@ namespace lunarium
         h = mHeight;
     }
 
+    
+    void Panel::SetNumPushedStyles(int num)
+    {
+        mNumPushedStyles = num;
+    }
+    
     void Panel::Update(float dt)
     {
         
     }
 
+    void Panel::PreBegin()
+    {
+
+    }
+    
+    bool Panel::OnUIRender()
+    {
+        if (!mIsOpen)
+            return false;
+
+        PreBegin();
+
+        if (!ImGui::Begin(GetName(), &mIsOpen, (ImGuiWindowFlags) mWindowFlags))
+        {
+            ImGui::PopStyleVar(mNumPushedStyles);
+            ImGui::End();
+            return false;
+        }
+
+        ImGui::PopStyleVar(mNumPushedStyles);
+        UpdateMetaInfo();
+
+        DoFrame();
+
+        RunPopups();
+
+        ImGui::End();
+        return true;
+    }
+
+    
+    OpRes Panel::AddPopup(int id, std::string name, std::function<bool(Panel*)> func) 
+    {
+        auto iter = mPopups.find(id);
+        if (iter != mPopups.end())
+        {
+            return OpRes::Fail("A popup with id: %d alread exists. Existing name: %s, New Name: %s", 
+                            iter->first, iter->second->Name.c_str(), name.c_str());
+        }
+
+        mPopups[id] = new Popup { func, false, name };
+        return OpRes::OK();
+    }
+
+    void Panel::RunPopups()
+    {
+        for (auto iter = mPopups.begin(); iter != mPopups.end(); iter++)
+        {
+            Popup* ppu = iter->second;
+            if (ppu->IsOpen)
+            {
+                ppu->IsOpen = ppu->PopupFunc(this);
+                ImGui::OpenPopup(ppu->Name.c_str());
+            }
+        }
+    }
+
     void Panel::UpdateMetaInfo()
     {
         ImVec2 p = ImGui::GetWindowPos();

src/gui/panel.h

@@ -11,8 +11,11 @@
 
 #include "panel_defs.h"
 #include "panel_manager.h"
+#include <utils/op_res.h>
 
 #include <string>
+#include <map>
+#include <functional>
 
 struct ImGuiInputTextCallbackData;
 
@@ -21,30 +24,57 @@ namespace lunarium
     class Panel
     {
     public:
-        Panel(std::string name, PanelDockZone dock_zone, bool isOpen = false);
+
+        struct Popup
+        {
+            std::function<bool(Panel*)> PopupFunc;
+            bool IsOpen;
+            std::string Name;
+        };
+
+    public:
+        Panel(std::string name, PanelDockZone dock_zone, bool isOpen = false, int window_flags = 0);
         virtual ~Panel();
         const char* GetName() const;
 
         virtual void Update(float dt);
-        virtual bool DoFrame() = 0;
+        bool OnUIRender();
+        void SetWindowFlags(int flags);
         void SetOpen(bool isOpen);
         bool IsOpen();
         void GetPosition(int& x, int& y) const;
         void GetSize(int& w, int& h) const;
         PanelDockZone GetDockZone() const;
 
-    protected:
+        OpRes AddPopup(int id, std::string name, std::function<bool(Panel*)>);    
+
+    private:
         std::string mPanelName;
         bool mIsOpen;
         PanelDockZone mDockZone;
+        int mWindowFlags;
+
+        // TODO: Not sure I like this solution...
+        int mNumPushedStyles;
+
+        // Popups
+        std::map<int, Popup*> mPopups;
 
         int mX;
         int mY;
         int mWidth;
         int mHeight;
 
-    protected:
+    private: // Helpers
         void UpdateMetaInfo();
+        void RunPopups();
+
+    protected:
+        virtual void PreBegin();
+        virtual void DoFrame() = 0;
+
+        void SetNumPushedStyles(int num);
+        void OpenPopup(int id);
 
     private:
         friend class PanelManager;

src/gui/panel_manager.cpp

@@ -134,7 +134,7 @@ namespace lunarium
             if ((*iter)->IsOpen())
             {
                 ImGui::SetNextWindowClass(&mWindowClass);
-                (*iter)->DoFrame();
+                (*iter)->OnUIRender();
             }
         }
     }

src/run_modes/editor/panels/about.cpp

@@ -16,27 +16,18 @@ namespace lunarium
 namespace editor
 {
     AboutPanel::AboutPanel()
-        : Panel("About", PanelDockZone::DDZ_NONE)
+        : Panel("About", PanelDockZone::DDZ_NONE, false, (int)ImGuiWindowFlags_NoCollapse)
     {
 
     }
-
+    void AboutPanel::PreBegin()
-    bool AboutPanel::DoFrame()
     {
-        if (!mIsOpen)
-            return false;
-
         ImGui::SetNextWindowSize(ImVec2(300, ImGui::GetFrameHeight() * 20));
-        if (!ImGui::Begin(GetName(), &mIsOpen, ImGuiWindowFlags_NoCollapse ))
-        {
-            ImGui::End();
-            return false;
     }
 
+    void AboutPanel::DoFrame()
+    {
         ImGui::TextWrapped("Lunarium Editor Version %s - Written by Joey Pollack", Version::GetVersion().ToString().c_str());
-
-        ImGui::End();
-        return true;
     }
 }
 }

src/run_modes/editor/panels/about.h

@@ -22,7 +22,8 @@ namespace editor
         AboutPanel();
 
         // Returns false if the window is closed
-        bool DoFrame();
+        void PreBegin();
+        void DoFrame();
     };
 }
 }

src/run_modes/editor/panels/asset_browser.cpp

@@ -23,7 +23,7 @@ namespace lunarium
 namespace editor
 {
     AssetBrowser::AssetBrowser(std::filesystem::path dir, Editor* pEditor)
-        : Panel("Asset Browser", PanelDockZone::DDZ_BOTTOM, true),  
+        : Panel("Asset Browser", PanelDockZone::DDZ_BOTTOM, true, (ImGuiWindowFlags)ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoScrollbar),  
             mAssetDirectory(dir), mpEditor(pEditor), mNewFolder(false), mSyncTree(false)
     {
     }
@@ -39,18 +39,8 @@ namespace editor
         return mSelectedDir;
     }
 
-    bool AssetBrowser::DoFrame()
+    void AssetBrowser::DoFrame()
     {
-        if (!mIsOpen)
-            return false;
-
-        if (!ImGui::Begin(GetName(), &mIsOpen, ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoScrollbar))
-        {
-            ImGui::End();
-            return false;
-        }
-
-        //DoNewFolder();
 
         // Directory tree
         // TODO: Figure out a better way to size stuff other 
@@ -74,9 +64,6 @@ namespace editor
         DoContentArea(wind_size);
 
         HandlePopupActions();
-
-        ImGui::End();
-        return true;
     }
 
     void AssetBrowser::DoDirTree(std::filesystem::path dir)
@@ -233,6 +220,11 @@ namespace editor
     }
 
 
+    void AssetBrowser::DefinePopups()
+    {
+        
+    }
+    
     void AssetBrowser::DoNewFolder()
     {
         if (ImGui::BeginPopupContextItem("New Folder Name"))

src/run_modes/editor/panels/asset_browser.h

@@ -26,7 +26,7 @@ namespace editor
 
         void SetAssetDirectory(std::filesystem::path dir);
 
-        bool DoFrame();
+        void DoFrame();
 
         std::filesystem::path GetSelectedDirectory();
 
@@ -46,6 +46,8 @@ namespace editor
         bool mSyncTree;
 
     private:
+        void DefinePopups();
+
         void HandlePopupActions();
         void HandleAssetDrop(std::filesystem::path dir);
 

src/run_modes/editor/panels/properties_view.cpp

@@ -17,22 +17,14 @@
 namespace lunarium { namespace editor 
 {
     PropertiesView::PropertiesView()
-        : Panel("Properties", PanelDockZone::DDZ_RIGHT, true), mpSelectedAsset(nullptr), mpSelectedEntity(nullptr)
+        : Panel("Properties", PanelDockZone::DDZ_RIGHT, true, ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoScrollbar), 
+            mpSelectedAsset(nullptr), mpSelectedEntity(nullptr)
     {
         
     }
 
-    bool PropertiesView::DoFrame()
+    void PropertiesView::DoFrame()
     {
-        if (!mIsOpen)
-            return false;
-
-        if (!ImGui::Begin(GetName(), &mIsOpen, ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoScrollbar))
-        {
-            ImGui::End();
-            return false;
-        }
-
         if (mpSelectedEntity)
         {
             // TODO: iterate through components
@@ -42,8 +34,6 @@ namespace lunarium { namespace editor
             }
         }
 
-        ImGui::End();
-        return true;
     }
 
     void PropertiesView::SetSelection(Entity* pEntity)

src/run_modes/editor/panels/properties_view.h

@@ -29,7 +29,7 @@ namespace editor
         void SetSelection(Entity* pEntity);
         void SetSelection(EditorAsset* pAsset);
 
-        bool DoFrame();
+        void DoFrame();
 
     private:
         std::vector<CustromProperty*> mCustomProps;

src/run_modes/editor/panels/world_tree.cpp

@@ -20,7 +20,8 @@ namespace lunarium
 namespace editor
 {
     WorldTree::WorldTree()
-        : Panel("World Tree", PanelDockZone::DDZ_LEFT, true), mpWorld(new lunarium::World), mDoNewEntity(false)
+        : Panel("World Tree", PanelDockZone::DDZ_LEFT, true, ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoScrollbar), 
+            mpWorld(new lunarium::World), mDoNewEntity(false)
     {
         
     }
@@ -35,17 +36,8 @@ namespace editor
         return mpWorld;
     }
 
-    bool WorldTree::DoFrame()
+    void WorldTree::DoFrame()
     {
-        if (!mIsOpen)
-            return false;
-
-        if (!ImGui::Begin(GetName(), &mIsOpen, ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoScrollbar))
-        {
-            ImGui::End();
-            return false;
-        }
-
         if (ImGui::TreeNode("World Root") && mpWorld)
         {
             // List all world entities
@@ -74,8 +66,6 @@ namespace editor
         
         DoContextMenu();
         HandlePopupEvents();
-        ImGui::End();
-        return true;
     }
 
     void WorldTree::DoContextMenu()

src/run_modes/editor/panels/world_tree.h

@@ -25,7 +25,7 @@ namespace editor
         void SetWorld(lunarium::World* pWorld);
         lunarium::World* GetWorld();
 
-        bool DoFrame();
+        void DoFrame();
 
     private:
         lunarium::World* mpWorld;

src/run_modes/editor/panels/world_view.cpp

@@ -13,29 +13,16 @@
 #include <editor/editor.h>
 #include <gui/panel_manager.h>
 
-namespace lunarium
+namespace lunarium { namespace editor
-{
-namespace editor
 {
     WorldView::WorldView()
-        : Panel("World View", PanelDockZone::DDZ_CENTER ,true), mpWorld(nullptr)
+        : Panel("World View", PanelDockZone::DDZ_CENTER, true, ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoScrollbar), mpWorld(nullptr)
     {
 
     }
 
-    bool WorldView::DoFrame()
+    void WorldView::DoFrame()
-    {
-        if (!mIsOpen)
-            return false;
-
-        if (!ImGui::Begin(GetName(), &mIsOpen, ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoScrollbar))
     { 
-            ImGui::End();
-            return false;
-        }
 
-        ImGui::End();
-        return true;
-    }
-}
     }
+}}

src/run_modes/editor/panels/world_view.h

@@ -23,7 +23,7 @@ namespace editor
     {
     public:
         WorldView();
-        bool DoFrame();
+        void DoFrame();
 
         void SetWorld(World* pWorld);
         World* GetWorld();

src/run_modes/editor/tools/map_editor/panels/map_canvas.cpp

@@ -21,7 +21,7 @@
 namespace lunarium { namespace editor 
 {
     MapCanvas::MapCanvas(MapEditor* editor)
-        : Panel("Map Canvas", PanelDockZone::DDZ_CENTER, true),
+        : Panel("Map Canvas", PanelDockZone::DDZ_CENTER, true, ImGuiWindowFlags_NoScrollbar),
         mpMapEditor(editor), mpCanvasImage(nullptr), mMap(nullptr), mSelectedTile({-1, -1}), mFrameBuffer(-1), mMapSizeChanged(false),
         mZoomFactor(1.0f), mScrollDragged(false), mCurrentRegion({0, 0}), mRegionString("")
     {
@@ -129,23 +129,17 @@ namespace lunarium { namespace editor
         }
     }
 
-    bool MapCanvas::DoFrame()
-    {
-        if (!mIsOpen)
-            return false;
 
+    void MapCanvas::PreBegin()
+    {
         ImGui::PushStyleVar( ImGuiStyleVar_WindowRounding, 0.0f );
         ImGui::PushStyleVar( ImGuiStyleVar_WindowBorderSize, 0.0f );
         ImGui::PushStyleVar( ImGuiStyleVar_WindowPadding, ImVec2( 0.0f, 0.0f ) );
-        if (!ImGui::Begin(GetName(), &mIsOpen, ImGuiWindowFlags_NoScrollbar))
+        SetNumPushedStyles(3);
-        {
-            ImGui::PopStyleVar(3);
-            ImGui::End();
-            return false;
     }
 
-        ImGui::PopStyleVar(3);
+    void MapCanvas::DoFrame()
-
+    {
         ImVec2 pos = ImGui::GetWindowPos();
         ImVec2 size = ImGui::GetWindowSize();
 
@@ -189,8 +183,6 @@ namespace lunarium { namespace editor
         }
 
         ImGui::EndChild();
-        ImGui::End();
-        return mIsOpen;
     }
 
     void MapCanvas::SetTileMap(TileMap* pMap)

src/run_modes/editor/tools/map_editor/panels/map_canvas.h

@@ -25,7 +25,8 @@ namespace lunarium { namespace editor
     public:
         MapCanvas(MapEditor* editor);
         void Update(float delta);
-        bool DoFrame();
+        void PreBegin();
+        void DoFrame();
 
         void SetTileMap(TileMap* pMap);
 

src/run_modes/editor/tools/map_editor/panels/tile_set_view.cpp

@@ -20,7 +20,7 @@
 namespace lunarium { namespace editor 
 {
     TileSetView::TileSetView(MapEditor* editor)
-        : Panel("Tile Set View", PanelDockZone::DDZ_RIGHT, true), 
+        : Panel("Tile Set View", PanelDockZone::DDZ_RIGHT, true, ImGuiWindowFlags_HorizontalScrollbar), 
             mpEditor(editor), mpSelectedTileSet(nullptr), mpViewImage(nullptr), mFrameBuffer(-1),
             mViewOffset({0, 0}), mViewZoom(1.0f), mMouseDown(false)
     {
@@ -97,22 +97,16 @@ namespace lunarium { namespace editor
         }
     }
 
-    bool TileSetView::DoFrame()
+    void TileSetView::PreBegin()
     {
-        if (!mIsOpen)
-            return false;
-
         ImGui::PushStyleVar( ImGuiStyleVar_WindowRounding, 0.0f );
         ImGui::PushStyleVar( ImGuiStyleVar_WindowBorderSize, 0.0f );
         ImGui::PushStyleVar( ImGuiStyleVar_WindowPadding, ImVec2( 0.0f, 0.0f ) );
-        if (!ImGui::Begin(GetName(), &mIsOpen, ImGuiWindowFlags_HorizontalScrollbar))
+        SetNumPushedStyles(3);
-        {
-            ImGui::PopStyleVar(3);
-            ImGui::End();
-            return false;
     }
-        ImGui::PopStyleVar(3);
 
+    void TileSetView::DoFrame()
+    {
         ImVec2 window_size = ImGui::GetWindowSize();
 
         float child_height = ImGui::GetFrameHeight() * 2;
@@ -159,9 +153,6 @@ namespace lunarium { namespace editor
             ImGui::Image((ImTextureID)mpViewImage->GetGLTextureID64(), 
                         ImVec2(mpViewImage->GetWidth(), mpViewImage->GetHeight()), ImVec2(0, 1), ImVec2(1, 0)); // the last 2 params are flipping the image on the y
         }
-
-        ImGui::End();
-        return mIsOpen;
     }
 
     void TileSetView::ClearTileSets()

src/run_modes/editor/tools/map_editor/panels/tile_set_view.h

@@ -26,7 +26,8 @@ namespace lunarium { namespace editor
         TileSetView(MapEditor* editor);
 
         void Update(float delta);
-        bool DoFrame();
+        void DoFrame();
+        void PreBegin();
 
         void ClearTileSets();
         void AddTileSet(TileSet* set);