Fix some window messaging bugs for dx.

src/graphics/DrawingSurface.cpp

@@ -15,7 +15,7 @@ std::unique_ptr<DrawingSurface> DrawingSurface::Create()
     return std::make_unique<DrawingSurface>();
 }
 
-void DrawingSurface::setSize(unsigned width, unsigned height)
+void DrawingSurface::setSize(unsigned width, unsigned height, bool triggerResize)
 {
     mWidth = width;
     mHeight = height;

src/graphics/DrawingSurface.h

@@ -15,7 +15,7 @@ public:
 
     static std::unique_ptr<DrawingSurface> Create();
 
-    virtual void setSize(unsigned width, unsigned height);
+    virtual void setSize(unsigned width, unsigned height, bool triggerResize = true);
 
     unsigned getWidth() const;
 

src/ui_elements/CMakeLists.txt

@@ -1,19 +1,23 @@
 list(APPEND ui_elements_LIB_INCLUDES
+        desktop_elements/Keyboard.h
         desktop_elements/Keyboard.cpp
         desktop_elements/IPlatformScreen.h
+        desktop_elements/Screen.h
         desktop_elements/Screen.cpp
         desktop_elements/IPlatformWindow.h
+        desktop_elements/Window.h
         desktop_elements/Window.cpp
-        ui_events/KeyboardEvent.cpp
-        ui_events/MouseEvent.cpp
-        ui_events/UiEvent.cpp
-        ui_events/PaintEvent.cpp
         ui_events/KeyboardEvent.h
+        ui_events/KeyboardEvent.cpp
         ui_events/MouseEvent.h
+        ui_events/MouseEvent.cpp
         ui_events/UiEvent.h
+        ui_events/UiEvent.cpp
         ui_events/PaintEvent.h
+        ui_events/PaintEvent.cpp
         ui_events/ResizeEvent.h
         ui_events/ResizeEvent.cpp
+        widgets/Widget.h
         widgets/Widget.cpp
         widgets/Button.cpp
         widgets/ButtonGroup.cpp

src/ui_elements/desktop_elements/DisplayState.h

@@ -0,0 +1,12 @@
+#pragma once
+
+namespace WindowState
+{
+	enum class Display
+	{
+		NORMAL,
+		MINIMIZED,
+		MAXIMIZED,
+		FULL_SCREEN
+	};
+}

src/ui_elements/desktop_elements/Window.cpp

@@ -43,14 +43,37 @@ std::unique_ptr<Window> Window::Create()
     return std::make_unique<Window>();
 }
 
-void Window::setSize(unsigned width, unsigned height)
+void Window::setIsSizingOnGoing(bool sizingOngoing)
 {
+    mSizingOngoing = sizingOngoing;
+}
+
+bool Window::getIsSizingOnGoing() const
+{
+    return mSizingOngoing;
+}
+
+void Window::setSize(unsigned width, unsigned height, bool triggerResize)
+{
+    if (width == mWidth && height == mHeight)
+    {
+        return;
+    }
+
     DrawingSurface::setSize(width, height);
-    mWidget->setBounds(width, height);
+    if (triggerResize && !mSizingOngoing)
+    {
+        onResize();
+    }
+}
+
+void Window::onResize()
+{
+    mWidget->setBounds(mWidth, mHeight);
 
     if (mPlatformWindow)
     {
-        mPlatformWindow->onResize(width, height);
+        mPlatformWindow->onResize(mWidth, mHeight);
     }
 }
 
@@ -151,4 +174,47 @@ bool Window::isDirty() const
     return mWidget->needsUpdate();
 }
 
+void Window::setDisplayState(WindowState::Display state)
+{
+    mDisplayState = state;
+}
+
+WindowState::Display Window::getDisplayState() const
+{
+    return mDisplayState;
+}
+
+void Window::setTitle(const std::string& title)
+{
+    mTitle = title;
+}
+
+const std::string& Window::getTitle() const
+{
+    return mTitle;
+}
+
+void Window::addPopup(std::unique_ptr<Widget> popupWidget)
+{
+    if (mPopupFunc)
+    {
+        mPopupFunc(this, std::move(popupWidget));
+    }
+}
+
+void Window::setPopupHandler(onPopupFunc func)
+{
+    mPopupFunc = func;
+}
+
+void Window::setParent(Window* parent)
+{
+    mParent = parent;
+}
+
+Window* Window::getParent() const
+{
+    return mParent;
+}
+
 }

src/ui_elements/desktop_elements/Window.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "DrawingSurface.h"
+#include "DisplayState.h"
 
 #include <memory>
 #include <vector>
@@ -30,7 +31,6 @@ class Window : public DrawingSurface
 {
 
 public:
-
     using onPopupFunc = std::function<void(mt::Window* parent, std::unique_ptr<Widget> popup)>;
 
     Window();
@@ -39,66 +39,55 @@ public:
 
     static std::unique_ptr<Window> Create();
 
-    void setWidget(WidgetPtr widget);
-
-    void onPaint(const PaintEvent* event);
-
-    void onMouseEvent(const MouseEvent* event);
-
-    void onKeyboardEvent(const KeyboardEvent* event);
-
-    IPlatformWindow* getPlatformWindow() const;
-
-    void setPlatformWindow(IPlatformWindowPtr window, FontsManager* fontsManager, DrawingMode drawingMode);
-
-    void map();
-
-    void show();
-
-    void doPaint(mt::Screen* screen);
+    void addPopup(std::unique_ptr<Widget> popupWidget);
 
     void clear();
 
     void clearPlatformWindow();
 
-    void setSize(unsigned width, unsigned height) override;
+    void doPaint(mt::Screen* screen);
+
+    IPlatformWindow* getPlatformWindow() const;
+
+    const std::string& getTitle() const;
+
+    Window* getParent() const;
+
+    DrawingContext* getDrawingContent() const;
+
+    WindowState::Display getDisplayState() const;
+
+    bool getIsSizingOnGoing() const;
 
     bool isDirty() const;
 
-    void setTitle(const std::string& title)
-    {
-        mTitle = title;
-    }
+    void map();
 
-    const std::string& getTitle() const
-    {
-        return mTitle;
-    }
+    void onPaint(const PaintEvent* event);
 
-    void addPopup(std::unique_ptr<Widget> popupWidget)
-    {
-        if (mPopupFunc)
-        {
-            mPopupFunc(this, std::move(popupWidget));
-        }
-    }
+    void onMouseEvent(const MouseEvent* event);
 
-    void setPopupHandler(onPopupFunc func)
-    {
-        mPopupFunc = func;
-    }
+    void onResize();
 
-    void setParent(Window* parent)
-    {
-        mParent = parent;
-    }
+    void onKeyboardEvent(const KeyboardEvent* event);
 
-    Window* getParent() const
-    {
-        return mParent;
-    }
+    void setPlatformWindow(IPlatformWindowPtr window, FontsManager* fontsManager, DrawingMode drawingMode);
 
-    DrawingContext* getDrawingContent() const;
+    void setPopupHandler(onPopupFunc func);
+
+    void setParent(Window* parent);
+
+    void show();
+
+    void setIsSizingOnGoing(bool sizingOngoing);
+
+    void setSize(unsigned width, unsigned height, bool triggerResize = true) override;
+
+    void setTitle(const std::string& title);
+
+    void setWidget(WidgetPtr widget);
+
+    void setDisplayState(WindowState::Display state);
 
 private:
     WidgetPtr mWidget {nullptr};
@@ -108,6 +97,9 @@ private:
 
     onPopupFunc mPopupFunc;
     Window* mParent{nullptr};
+
+    bool mSizingOngoing{ false };
+    WindowState::Display mDisplayState{ WindowState::Display::NORMAL };
 };
 }
 

src/windows/ui_interfaces/win32/Win32Window.cpp

@@ -104,10 +104,60 @@ LRESULT CALLBACK Win32Window::WindowProc(UINT message, WPARAM wParam, LPARAM lPa
             auto keyChar = (wchar_t)wParam;
             key_event->setKeyString(StringUtils::convert(std::wstring(1, keyChar)));
             mDesktopManager->onUiEvent(std::move(key_event));
+            return 0;
         }
         case WM_PAINT:
         {
             onPaintMessage();
+            return 0;
+        }
+        case WM_SIZE:
+        {
+            auto width = LOWORD(lParam);
+            auto height = HIWORD(lParam);
+            MLOG_INFO("WM_SIZE: " << width << " | " <<  height);
+
+            mWindow->setSize(width, height, false);
+            if (wParam == SIZE_MINIMIZED)
+            {
+                mWindow->setDisplayState(WindowState::Display::MINIMIZED);
+            }
+            else if (wParam == SIZE_MAXIMIZED)
+            {
+                mWindow->setDisplayState(WindowState::Display::MAXIMIZED);
+                mWindow->onResize();
+            }
+            else if (wParam == SIZE_RESTORED)
+            {
+                if (mWindow->getDisplayState() == WindowState::Display::MINIMIZED)
+                {
+                    mWindow->setDisplayState(WindowState::Display::NORMAL);
+                    mWindow->onResize();
+                }
+                else if (mWindow->getDisplayState() == WindowState::Display::MAXIMIZED)
+                {
+                    mWindow->setDisplayState(WindowState::Display::NORMAL);
+                    mWindow->onResize();
+                }
+                else if (!mWindow->getIsSizingOnGoing())
+                {
+                    mWindow->onResize();
+                }
+            }
+            return 0;
+        }
+        case WM_ENTERSIZEMOVE:
+        {
+            MLOG_INFO("WM_ENTERSIZEMOVE");
+            mWindow->setIsSizingOnGoing(true);
+            return 0;
+        }
+        case WM_EXITSIZEMOVE:
+        {
+            MLOG_INFO("WM_EXITSIZEMOVE");
+            mWindow->setIsSizingOnGoing(false);
+            mWindow->onResize();
+            return 0;
         }
     }
     return DefWindowProc(mHandle, message, wParam, lParam);
@@ -171,4 +221,12 @@ void Win32Window::afterPaint(mt::Screen* screen)
 
         EndPaint(mHandle, &ps);
     }
+}
+
+void Win32Window::onResize(unsigned width, unsigned height)
+{
+    if (mDxInterface)
+    {
+        mDxInterface->onResize();
+    }
 }

src/windows/ui_interfaces/win32/Win32Window.h

@@ -43,7 +43,7 @@ public:
 
     void clear() {};
 
-    void onResize(unsigned width, unsigned height) {};
+    void onResize(unsigned width, unsigned height);
 
     void beforePaint(mt::Screen* screen);
 

src/windows/ui_interfaces/win32/directx/DirectX2dIntegration.cpp

@@ -63,6 +63,9 @@ void DirectX2dIntegration::clearBuffers()
         buffer.Reset();
     }
     mD2dRenderTargets.clear();
+
+    mDxInterface->getD2dContext()->SetTarget(nullptr);
+    mDxInterface->getD3d11DeviceContext()->Flush();
 }
 
 void DirectX2dIntegration::wrapBuffer(ID3D12Resource* renderTarget)

src/windows/ui_interfaces/win32/directx/DirectXBuffers.cpp

@@ -2,6 +2,8 @@
 
 #include "DirectXDescriptors.h"
 
+#include "FileLogger.h"
+
 #include <dxgi.h>
 #include <dxgi1_6.h>
 #include <d3d12.h>
@@ -17,10 +19,17 @@ void DirectXBuffers::clear()
 {
     for (auto& buffer : mBackBuffers)
     {
-        buffer.Reset();
+        auto count = buffer.Reset();
     }
     mBackBuffers.clear();
     mDepthStencilBuffer.Reset();
+
+    mInitialized = false;
+}
+
+bool DirectXBuffers::isInitialized()
+{
+    return mInitialized;
 }
 
 UINT DirectXBuffers::getCurrentBackBufferIndex() const
@@ -57,8 +66,11 @@ void DirectXBuffers::setupBackBuffers(ID3D12Device* device, IDXGISwapChain4* swa
 
         swapChain->GetBuffer(i, IID_PPV_ARGS(&mBackBuffers[mBackBuffers.size()-1]));
         device->CreateRenderTargetView(mBackBuffers[mBackBuffers.size() - 1].Get(), nullptr, rtv_heap_handle);
+        
         rtv_heap_handle.Offset(1, descriptors->getRtvDescriptorSize());
+
     }
+    mInitialized = true;
 }
 
 void DirectXBuffers::setupDepthStencilHeap(ID3D12Device* device, unsigned width, unsigned height)

src/windows/ui_interfaces/win32/directx/DirectXBuffers.h

@@ -23,6 +23,8 @@ public:
 
     ID3D12Resource* getDepthStencilBuffer() const;
 
+    bool isInitialized();
+
     void setupBackBuffers(ID3D12Device* device, IDXGISwapChain4* swapChain, DirectXDescriptors* descriptors);
 
     void setupDepthStencilHeap(ID3D12Device* device, unsigned width, unsigned height);
@@ -32,6 +34,7 @@ public:
     void updateBackbufferIndex(UINT index);
 
 private:
+    bool mInitialized{ false };
     UINT mFrameCount{ 2 };
     UINT mBackBufferIndex{ 0 };
     std::vector<Microsoft::WRL::ComPtr<ID3D12Resource> > mBackBuffers;

src/windows/ui_interfaces/win32/directx/DirectXCommandList.cpp

@@ -32,6 +32,6 @@ void DirectXCommandList::reset(ID3D12PipelineState* pso)
 
 void DirectXCommandList::resetAllocator()
 {
-	mCommandAllocator.Reset();
+	mCommandAllocator->Reset();
 }
 

src/windows/ui_interfaces/win32/directx/Win32DxWindowInterface.cpp

@@ -46,6 +46,13 @@ void Win32DxWindowInterface::onRender()
 {
     if (!mIsValid)
     {
+        MLOG_INFO("Invalid state - returning");
+        return;
+    }
+
+    if (!mBuffers->isInitialized())
+    {
+        MLOG_INFO("Buffer not initialized - returning");
         return;
     }
 
@@ -89,8 +96,8 @@ void Win32DxWindowInterface::updateCommandList()
     painter->paintMesh(mCommandList->get());
 
     // Indicate that the back buffer will now be used to present. (Exclude as handled by D2D integration later)
-    //barrier = CD3DX12_RESOURCE_BARRIER::Transition(mRenderTargets[mFrameIndex].Get(), D3D12_RESOURCE_STATE_RENDER_TARGET, D3D12_RESOURCE_STATE_PRESENT);
-    //mCommandList->ResourceBarrier(1, &barrier);
+    //barrier = CD3DX12_RESOURCE_BARRIER::Transition(mBuffers->getCurrentBackBuffer(), D3D12_RESOURCE_STATE_RENDER_TARGET, D3D12_RESOURCE_STATE_PRESENT);
+    //mCommandList->get()->ResourceBarrier(1, &barrier);
 
     mCommandList->close();
 }
@@ -102,6 +109,10 @@ bool Win32DxWindowInterface::initialize()
 		return true;
 	}
     mInitialized = true;
+    MLOG_INFO("D3D Win init");
+
+    mD2dIntegration = std::make_unique<DirectX2dIntegration>(mWindow, mDxInterface, FrameCount);
+    mBuffers = std::make_unique<DirectXBuffers>(FrameCount);
 
     if (!createSwapChain())
     {
@@ -115,8 +126,6 @@ bool Win32DxWindowInterface::initialize()
 
     mDescriptors = std::make_unique<DirectXDescriptors>();
     mDescriptors->setupDefaultDescriptorHeaps(mDxInterface->getD3dDevice());
-    mD2dIntegration = std::make_unique<DirectX2dIntegration>(mWindow, mDxInterface, FrameCount);
-    mBuffers = std::make_unique<DirectXBuffers>(FrameCount);
 
     onResize();
 
@@ -133,6 +142,9 @@ bool Win32DxWindowInterface::initialize()
 
 void Win32DxWindowInterface::onResize()
 {
+    MLOG_INFO("On resize");
+    mIsValid = false;
+
     flushCommandQueue();
 
     mCommandList->reset(getPipelineState());
@@ -150,12 +162,15 @@ void Win32DxWindowInterface::onResize()
     flushCommandQueue();
 
     updateViewport();
+
+    mIsValid = true;
 }
 
 void Win32DxWindowInterface::resizeSwapChain()
 {
     const auto width = mWindow->getWidth();
     const auto height = mWindow->getHeight();
+    MLOG_INFO("Resizing swap chain to: " << width << " | " << height);
     mSwapChain->ResizeBuffers(FrameCount, width, height, DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH);
     updateBackbufferIndex(0);
 }
@@ -170,8 +185,8 @@ void Win32DxWindowInterface::updateViewport()
 
 void Win32DxWindowInterface::clearBuffers()
 {
-    mBuffers->clear();
     mD2dIntegration->clearBuffers();
+    mBuffers->clear();  
 }
 
 ID3D12PipelineState* Win32DxWindowInterface::getPipelineState() const
@@ -182,6 +197,7 @@ ID3D12PipelineState* Win32DxWindowInterface::getPipelineState() const
 
 void Win32DxWindowInterface::populateBuffers()
 {
+    MLOG_INFO("Populating buffers");
     auto d3d_device = mDxInterface->getD3dDevice();
     mBuffers->setupBackBuffers(d3d_device, mSwapChain.Get(), mDescriptors.get());
     for (UINT idx = 0; idx < FrameCount; idx++)
@@ -191,11 +207,14 @@ void Win32DxWindowInterface::populateBuffers()
 
     const auto width = mWindow->getWidth();
     const auto height = mWindow->getHeight();
-    mBuffers->setupDepthStencilHeap(mDxInterface->getD3dDevice(), width, height);
-    mBuffers->setupDepthStencilView(mDxInterface->getD3dDevice(), mDescriptors.get());
+    if (width > 0 and height > 0)
+    {
+        mBuffers->setupDepthStencilHeap(mDxInterface->getD3dDevice(), width, height);
+        mBuffers->setupDepthStencilView(mDxInterface->getD3dDevice(), mDescriptors.get());
 
-    auto barrier = CD3DX12_RESOURCE_BARRIER::Transition(mBuffers->getDepthStencilBuffer(), D3D12_RESOURCE_STATE_COMMON, D3D12_RESOURCE_STATE_DEPTH_WRITE);
-    mCommandList->get()->ResourceBarrier(1, &barrier);
+        auto barrier = CD3DX12_RESOURCE_BARRIER::Transition(mBuffers->getDepthStencilBuffer(), D3D12_RESOURCE_STATE_COMMON, D3D12_RESOURCE_STATE_DEPTH_WRITE);
+        mCommandList->get()->ResourceBarrier(1, &barrier);
+    }
 }
 
 bool Win32DxWindowInterface::createSwapChain()