From 53c98a227d6ff0ff8d7d405b399c5cd7f0882d82 Mon Sep 17 00:00:00 2001
From: James Grogan <grogan.ox@gmail.com>
Date: Fri, 11 Nov 2022 14:22:31 +0000
Subject: [PATCH] More window cleaning

---
 apps/sample-gui/MediaTool.cpp                 |  17 +-
 .../audio_editor/AudioEditorView.cpp          |   8 +-
 apps/sample-gui/gui-main.cpp                  |   5 +-
 .../image_editor/ImageEditorView.cpp          |   8 +-
 .../sample-gui/text_editor/TextEditorView.cpp |  38 ++--
 apps/sample-gui/web_client/WebClientView.cpp  |   8 +-
 src/client/StatusBar.cpp                      |   2 +-
 src/client/TabbedPanelWidget.cpp              |  16 +-
 src/client/TopBar.cpp                         |   2 +-
 src/geometry/DiscretePoint.h                  |  10 +
 src/ui_elements/desktop_elements/Window.cpp   |  13 +-
 src/ui_elements/widgets/Button.cpp            |  57 +++--
 src/ui_elements/widgets/Button.h              |  24 +-
 src/ui_elements/widgets/HorizontalSpacer.cpp  |  31 +--
 src/ui_elements/widgets/HorizontalSpacer.h    |   8 +-
 src/ui_elements/widgets/Label.cpp             |  54 +++--
 src/ui_elements/widgets/Label.h               |   4 +-
 src/ui_elements/widgets/StackWidget.cpp       |   4 +-
 src/ui_elements/widgets/TextBox.cpp           |   8 +-
 src/ui_elements/widgets/TextBox.h             |   4 +-
 src/ui_elements/widgets/VerticalSpacer.cpp    |  18 +-
 src/ui_elements/widgets/VerticalSpacer.h      |   6 +-
 src/ui_elements/widgets/Widget.cpp            | 210 ++++++++++++------
 src/ui_elements/widgets/Widget.h              | 104 ++++++---
 src/windows/managers/DesktopManager.cpp       |   1 -
 src/windows/managers/WindowManager.h          |   2 -
 .../ui_interfaces/x11/XcbInterface.cpp        |   3 +-
 .../ui_interfaces/x11/XcbLayerInterface.cpp   |  10 +-
 .../ui_interfaces/x11/XcbLayerInterface.h     |   8 +-
 29 files changed, 422 insertions(+), 261 deletions(-)

diff --git a/apps/sample-gui/MediaTool.cpp b/apps/sample-gui/MediaTool.cpp
index 45e39a6..6de1603 100644
--- a/apps/sample-gui/MediaTool.cpp
+++ b/apps/sample-gui/MediaTool.cpp
@@ -23,6 +23,7 @@ void MediaTool::initializeViews()
     auto mainWindow = mDesktopManager->GetWindowManager()->GetMainWindow();
     mainWindow->SetSize(800, 600);
 
+    /*
     auto tabbedPanel = TabbedPanelWidget::Create();
 
     auto textEditor = TextEditorView::Create();
@@ -50,5 +51,19 @@ void MediaTool::initializeViews()
     horizontalSpace->AddWidgetWithScale(std::move(tabbedPanel), 20);
     horizontalSpace->AddWidgetWithScale(std::move(statusBar), 1);
 
-    mainWindow->AddWidget(std::move(horizontalSpace));
+    */
+
+    auto button = Button::Create();
+    button->setLabel("Click!");
+    button->setBounds(100, 200);
+    button->setBackgroundColor(Color::Create(0, 0, 255, 0));
+
+    auto background_widget = Widget::Create();
+    background_widget->setBackgroundColor(Color::Create(0, 255, 255, 0));
+
+    auto horizontal_spacer = HorizontalSpacer::Create();
+    horizontal_spacer->addWidgetWithScale(std::move(button), 1);
+    horizontal_spacer->addWidgetWithScale(std::move(background_widget), 1);
+
+    mainWindow->AddWidget(std::move(horizontal_spacer));
 }
diff --git a/apps/sample-gui/audio_editor/AudioEditorView.cpp b/apps/sample-gui/audio_editor/AudioEditorView.cpp
index 06a90b6..94e9fdf 100644
--- a/apps/sample-gui/audio_editor/AudioEditorView.cpp
+++ b/apps/sample-gui/audio_editor/AudioEditorView.cpp
@@ -6,10 +6,10 @@
 AudioEditorView::AudioEditorView()
 {
     auto label = Label::Create();
-    label->SetLabel("Audio Editor");
-    label->SetBackgroundColor(Color::Create(200, 189, 160));
-    label->SetMargin(1);
-    AddWidget(std::move(label));
+    label->setLabel("Audio Editor");
+    label->setBackgroundColor(Color::Create(200, 189, 160));
+    label->setMargin(1);
+    addWidget(std::move(label));
 }
 
 std::unique_ptr<AudioEditorView> AudioEditorView::Create()
diff --git a/apps/sample-gui/gui-main.cpp b/apps/sample-gui/gui-main.cpp
index 3a2d324..9a964a6 100644
--- a/apps/sample-gui/gui-main.cpp
+++ b/apps/sample-gui/gui-main.cpp
@@ -11,8 +11,9 @@ int main(int argc, char *argv[])
     args->recordLaunchPath();
 
     // Start the gui app
-    auto gui_app = GuiApplication(std::move(args));
-    gui_app.run();
+    auto app = MediaTool(std::move(args));
+    app.setUiInterfaceBackend(UiInterfaceFactory::Backend::X11_RASTER);
+    app.run();
 
     return 0;
 }
diff --git a/apps/sample-gui/image_editor/ImageEditorView.cpp b/apps/sample-gui/image_editor/ImageEditorView.cpp
index b1519d6..41f2f91 100644
--- a/apps/sample-gui/image_editor/ImageEditorView.cpp
+++ b/apps/sample-gui/image_editor/ImageEditorView.cpp
@@ -6,10 +6,10 @@
 ImageEditorView::ImageEditorView()
 {
     auto label = Label::Create();
-    label->SetLabel("Image Editor");
-    label->SetBackgroundColor(Color::Create(200, 189, 160));
-    label->SetMargin(1);
-    AddWidget(std::move(label));
+    label->setLabel("Image Editor");
+    label->setBackgroundColor(Color::Create(200, 189, 160));
+    label->setMargin(1);
+    addWidget(std::move(label));
 }
 
 std::unique_ptr<ImageEditorView> ImageEditorView::Create()
diff --git a/apps/sample-gui/text_editor/TextEditorView.cpp b/apps/sample-gui/text_editor/TextEditorView.cpp
index 0294bab..4df5614 100644
--- a/apps/sample-gui/text_editor/TextEditorView.cpp
+++ b/apps/sample-gui/text_editor/TextEditorView.cpp
@@ -18,17 +18,17 @@ TextEditorController* TextEditorView::GetController()
 void TextEditorView::Initialize()
 {
     auto label = Label::Create();
-    label->SetLabel("Text Editor");
-    label->SetBackgroundColor(Color::Create(181, 189, 200));
-    label->SetMargin(1);
+    label->setLabel("Text Editor");
+    label->setBackgroundColor(Color::Create(181, 189, 200));
+    label->setMargin(1);
 
     auto textBox = TextBox::Create();
     mTextBox = textBox.get();
 
     auto saveButton = Button::Create();
-    saveButton->SetLabel("Save");
-    saveButton->SetBackgroundColor(Color::Create(200, 200, 200));
-    saveButton->SetMargin(2);
+    saveButton->setLabel("Save");
+    saveButton->setBackgroundColor(Color::Create(200, 200, 200));
+    saveButton->setMargin(2);
     auto onSave = [this](Widget* self){
                 if(this && mController && mTextBox)
                 {
@@ -36,12 +36,12 @@ void TextEditorView::Initialize()
                     mController->OnSave();
                 };
             };
-    saveButton->SetOnClickFunction(onSave);
+    saveButton->setOnClickFunction(onSave);
 
     auto clearButton = Button::Create();
-    clearButton->SetLabel("Clear");
-    clearButton->SetBackgroundColor(Color::Create(200, 200, 200));
-    clearButton->SetMargin(2);
+    clearButton->setLabel("Clear");
+    clearButton->setBackgroundColor(Color::Create(200, 200, 200));
+    clearButton->setMargin(2);
     auto onClear = [this](Widget* self){
                 if(this && mController && mTextBox)
                 {
@@ -49,12 +49,12 @@ void TextEditorView::Initialize()
                     mTextBox->SetContent("");
                 };
             };
-    clearButton->SetOnClickFunction(onClear);
+    clearButton->setOnClickFunction(onClear);
 
     auto loadButton = Button::Create();
-    loadButton->SetLabel("Load");
-    loadButton->SetBackgroundColor(Color::Create(200, 200, 200));
-    loadButton->SetMargin(2);
+    loadButton->setLabel("Load");
+    loadButton->setBackgroundColor(Color::Create(200, 200, 200));
+    loadButton->setMargin(2);
     auto onLoad = [this](Widget* self){
                 if(this && mController && mTextBox)
                 {
@@ -62,7 +62,7 @@ void TextEditorView::Initialize()
                     mTextBox->SetContent(mController->GetContent());
                 };
             };
-    loadButton->SetOnClickFunction(onLoad);
+    loadButton->setOnClickFunction(onLoad);
 
     auto buttonSpacer = VerticalSpacer::Create();
     buttonSpacer->AddWidgetWithScale(std::move(saveButton), 1);
@@ -70,11 +70,11 @@ void TextEditorView::Initialize()
     buttonSpacer->AddWidgetWithScale(std::move(loadButton), 1);
 
     auto hSpacer = HorizontalSpacer::Create();
-    hSpacer->AddWidgetWithScale(std::move(label), 1);
-    hSpacer->AddWidgetWithScale(std::move(textBox), 14);
-    hSpacer->AddWidgetWithScale(std::move(buttonSpacer), 1);
+    hSpacer->addWidgetWithScale(std::move(label), 1);
+    hSpacer->addWidgetWithScale(std::move(textBox), 14);
+    hSpacer->addWidgetWithScale(std::move(buttonSpacer), 1);
 
-    AddWidget(std::move(hSpacer));
+    addWidget(std::move(hSpacer));
 }
 
 std::unique_ptr<TextEditorView> TextEditorView::Create()
diff --git a/apps/sample-gui/web_client/WebClientView.cpp b/apps/sample-gui/web_client/WebClientView.cpp
index 7fad55c..0cd152b 100644
--- a/apps/sample-gui/web_client/WebClientView.cpp
+++ b/apps/sample-gui/web_client/WebClientView.cpp
@@ -6,10 +6,10 @@
 WebClientView::WebClientView()
 {
     auto label = Label::Create();
-    label->SetLabel("Web Client");
-    label->SetBackgroundColor(Color::Create(200, 189, 160));
-    label->SetMargin(1);
-    AddWidget(std::move(label));
+    label->setLabel("Web Client");
+    label->setBackgroundColor(Color::Create(200, 189, 160));
+    label->setMargin(1);
+    addWidget(std::move(label));
 }
 
 std::unique_ptr<WebClientView> WebClientView::Create()
diff --git a/src/client/StatusBar.cpp b/src/client/StatusBar.cpp
index 851df2b..bf98098 100644
--- a/src/client/StatusBar.cpp
+++ b/src/client/StatusBar.cpp
@@ -4,7 +4,7 @@
 
 StatusBar::StatusBar()
 {
-    SetBackgroundColor(Color::Create(200, 200, 200));
+    setBackgroundColor(Color::Create(200, 200, 200));
 }
 
 std::unique_ptr<StatusBar> StatusBar::Create()
diff --git a/src/client/TabbedPanelWidget.cpp b/src/client/TabbedPanelWidget.cpp
index d51db5d..a6851cd 100644
--- a/src/client/TabbedPanelWidget.cpp
+++ b/src/client/TabbedPanelWidget.cpp
@@ -13,12 +13,12 @@ TabbedPanelWidget::TabbedPanelWidget()
 
     auto nav = HorizontalSpacer::Create();
     mNavPanel = nav.get();
-    nav->SetSize({0, 0, 0, 0, 200, 0});
+    nav->setSize({0, 0, 0, 0, 200, 0});
 
     auto vertSpacer = VerticalSpacer::Create();
     vertSpacer->AddWidgetWithScale(std::move(nav), 1);
     vertSpacer->AddWidgetWithScale(std::move(stack), 4);
-    AddWidget(std::move(vertSpacer));
+    addWidget(std::move(vertSpacer));
 }
 
 std::unique_ptr<TabbedPanelWidget> TabbedPanelWidget::Create()
@@ -34,9 +34,9 @@ StackWidget* TabbedPanelWidget::GetStack() const
 void TabbedPanelWidget::AddPanel(WidgetUPtr panel, const std::string& label)
 {
     auto button = Button::Create();
-    button->SetLabel(label);
-    button->SetBackgroundColor(Color::Create(156, 156, 156));
-    button->SetMargin({1, 0, 0, 1});
+    button->setLabel(label);
+    button->setBackgroundColor(Color::Create(156, 156, 156));
+    button->setMargin({1, 0, 0, 1});
     auto rawPanel = panel.get();
     auto onClick = [this, rawPanel](Widget*){
         if(this && rawPanel)
@@ -44,9 +44,9 @@ void TabbedPanelWidget::AddPanel(WidgetUPtr panel, const std::string& label)
             this->GetStack()->ShowChild(rawPanel);
         }
     };
-    button->SetOnClickFunction(onClick);
-    mStack->AddWidget(std::move(panel));
-    mNavPanel->AddWidget(std::move(button));
+    button->setOnClickFunction(onClick);
+    mStack->addWidget(std::move(panel));
+    mNavPanel->addWidget(std::move(button));
 }
 
 
diff --git a/src/client/TopBar.cpp b/src/client/TopBar.cpp
index 24db275..be83727 100644
--- a/src/client/TopBar.cpp
+++ b/src/client/TopBar.cpp
@@ -4,7 +4,7 @@
 
 TopBar::TopBar()
 {
-    SetBackgroundColor(Color::Create(50, 50, 50));
+    setBackgroundColor(Color::Create(50, 50, 50));
 }
 
 std::unique_ptr<TopBar> TopBar::Create()
diff --git a/src/geometry/DiscretePoint.h b/src/geometry/DiscretePoint.h
index 06c8399..2735fb0 100644
--- a/src/geometry/DiscretePoint.h
+++ b/src/geometry/DiscretePoint.h
@@ -18,6 +18,16 @@ public:
     unsigned GetX() const;
 
     unsigned GetY() const;
+
+    bool operator==(const DiscretePoint& rhs) const
+    {
+       return (mX == rhs.mX)
+       && (mY == rhs.mY);
+    }
+    bool operator!=(const DiscretePoint& rhs) const
+    {
+      return !operator==(rhs);
+    }
 };
 
 using Pixel = DiscretePoint;
diff --git a/src/ui_elements/desktop_elements/Window.cpp b/src/ui_elements/desktop_elements/Window.cpp
index 37186f2..fa833ee 100644
--- a/src/ui_elements/desktop_elements/Window.cpp
+++ b/src/ui_elements/desktop_elements/Window.cpp
@@ -14,7 +14,7 @@ Window::Window()
      mHeight(600),
      mWidget(Widget::Create())
 {
-
+    mWidget->setBounds(mWidth, mHeight);
 }
 
 Window::~Window()
@@ -29,23 +29,22 @@ std::unique_ptr<Window> Window::Create()
 
 std::vector<VisualLayer*> Window::GetLayers()
 {
-    return mWidget->GetLayers();
+    return mWidget->getLayers();
 }
 
 void Window::OnMouseEvent(const MouseEvent* event)
 {
-    mWidget->OnMouseEvent(event);
+    mWidget->onMouseEvent(event);
 }
 
 void Window::OnKeyboardEvent(const KeyboardEvent* event)
 {
-    mWidget->OnKeyboardEvent(event);
+    mWidget->onKeyboardEvent(event);
 }
 
 void Window::OnPaint(const PaintEvent* event)
 {
-    mWidget->SetBounds(mWidth, mHeight);
-    mWidget->OnPaintEvent(event);
+    mWidget->onPaintEvent(event);
 }
 
 void Window::AddWidget(WidgetUPtr widget)
@@ -55,6 +54,7 @@ void Window::AddWidget(WidgetUPtr widget)
         mWidget.reset();
     }
     mWidget = std::move(widget);
+    mWidget->setBounds(mWidth, mHeight);
 }
 
 Widget* Window::GetWidget() const
@@ -76,6 +76,7 @@ void Window::SetSize(unsigned width, unsigned height)
 {
     mWidth = width;
     mHeight = height;
+    mWidget->setBounds(mWidth, mHeight);
 }
 
 IPlatformWindow* Window::GetPlatformWindow() const
diff --git a/src/ui_elements/widgets/Button.cpp b/src/ui_elements/widgets/Button.cpp
index 310d391..ac21a5a 100644
--- a/src/ui_elements/widgets/Button.cpp
+++ b/src/ui_elements/widgets/Button.cpp
@@ -21,22 +21,26 @@ std::unique_ptr<Button> Button::Create()
     return std::make_unique<Button>();
 }
 
-void Button::SetOnClickFunction(clickFunc func)
+void Button::setOnClickFunction(clickFunc func)
 {
     mClickFunc = func;
 }
 
-void Button::SetLabel(const std::string& text)
+void Button::setLabel(const std::string& text)
 {
-    mLabel = text;
+    if (text != mLabel)
+    {
+        mLabel = text;
+        mDirty = true;
+    }
 }
 
-void Button::OnMyMouseEvent(const MouseEvent* event)
+void Button::onMyMouseEvent(const MouseEvent* event)
 {
     if(event->GetAction() == MouseEvent::Action::Pressed)
     {
         mCachedColor = *mBackgroundColor;
-        SetBackgroundColor(Color::Create(*mClickedColor));
+        setBackgroundColor(Color::Create(*mClickedColor));
         if(mClickFunc)
         {
             mClickFunc(this);
@@ -44,24 +48,39 @@ void Button::OnMyMouseEvent(const MouseEvent* event)
     }
     else if(event->GetAction() == MouseEvent::Action::Released)
     {
-        SetBackgroundColor(Color::Create(mCachedColor));
+        setBackgroundColor(Color::Create(mCachedColor));
     }
 }
 
-void Button::OnPaintEvent(const PaintEvent* event)
+void Button::onPaintEvent(const PaintEvent* event)
 {
-    mMyLayers.clear();
-    AddBackground(event);
-    if(!mLabel.empty())
+    if (!needsUpdate())
     {
-        unsigned fontOffset = unsigned(mLabel.size()) * 4;
-        auto middle = DiscretePoint(mLocation.GetX() + mSize.mWidth/2 - fontOffset,
-                mLocation.GetY() + mSize.mHeight/2 + 4);
-        auto textLayer = VisualLayer::Create();
-        auto textElement = TextElement::Create(mLabel, middle);
-        textElement->SetFillColor(Color::Create(*mBackgroundColor));
-        textLayer->SetText(std::move(textElement));
-        mMyLayers.push_back(std::move(textLayer));
+        return;
     }
-    CopyMyLayers();
+    mLayers.clear();
+
+    if (mDirty)
+    {
+        mMyLayers.clear();
+        if(!mVisible)
+        {
+            return;
+        }
+        addBackground(event);
+
+        if(!mLabel.empty())
+        {
+            unsigned fontOffset = unsigned(mLabel.size()) * 4;
+            auto middle = DiscretePoint(mLocation.GetX() + mSize.mWidth/2 - fontOffset, mLocation.GetY() + mSize.mHeight/2 + 4);
+            auto textLayer = VisualLayer::Create();
+            auto textElement = TextElement::Create(mLabel, middle);
+            textElement->SetFillColor(Color::Create(*mBackgroundColor));
+            textLayer->SetText(std::move(textElement));
+            mMyLayers.push_back(std::move(textLayer));
+        }
+        mDirty = false;
+        addMyLayers();
+    }
+
 }
diff --git a/src/ui_elements/widgets/Button.h b/src/ui_elements/widgets/Button.h
index 3cfb3de..344d514 100644
--- a/src/ui_elements/widgets/Button.h
+++ b/src/ui_elements/widgets/Button.h
@@ -11,27 +11,27 @@ class MouseEvent;
 
 class Button : public Widget
 {
-private:
-    using clickFunc = std::function<void(Widget* self)>;
-    std::string mLabel;
-    clickFunc mClickFunc;
-    Color mCachedColor;
-    ColorUPtr mClickedColor;
-
 public:
+    using clickFunc = std::function<void(Widget* self)>;
+
     Button();
 
     static std::unique_ptr<Button> Create();
 
-    void SetLabel(const std::string& text);
+    void setLabel(const std::string& text);
 
-    void SetOnClickFunction(clickFunc func);
-
-    void OnPaintEvent(const PaintEvent* event) override;
+    void setOnClickFunction(clickFunc func);
 
 protected:
+    void onMyMouseEvent(const MouseEvent* event) override;
 
-    void OnMyMouseEvent(const MouseEvent* event) override;
+    void onPaintEvent(const PaintEvent* event) override;
+
+private:
+    std::string mLabel;
+    clickFunc mClickFunc;
+    Color mCachedColor;
+    ColorUPtr mClickedColor;
 };
 
 using ButtonUPtr = std::unique_ptr<Button>;
diff --git a/src/ui_elements/widgets/HorizontalSpacer.cpp b/src/ui_elements/widgets/HorizontalSpacer.cpp
index 35fc954..239acc2 100644
--- a/src/ui_elements/widgets/HorizontalSpacer.cpp
+++ b/src/ui_elements/widgets/HorizontalSpacer.cpp
@@ -15,20 +15,19 @@ std::unique_ptr<HorizontalSpacer> HorizontalSpacer::Create()
     return std::make_unique<HorizontalSpacer>();
 }
 
-void HorizontalSpacer::AddWidget(WidgetUPtr widget)
+void HorizontalSpacer::addWidget(WidgetUPtr widget)
 {
-    AddWidgetWithScale(std::move(widget), 1.0);
+    addWidgetWithScale(std::move(widget), 1.0);
 }
 
-void HorizontalSpacer::AddWidgetWithScale(WidgetUPtr widget, double scale)
+void HorizontalSpacer::addWidgetWithScale(WidgetUPtr widget, double scale)
 {
-    Widget::AddWidget(std::move(widget));
+    Widget::addWidget(std::move(widget));
     mScales.push_back(scale);
 }
 
-void HorizontalSpacer::AddChildLayers(const PaintEvent* event)
+void HorizontalSpacer::addChildLayers(const PaintEvent* event)
 {
-    mLayers.clear();
     double scaleSum  = std::accumulate(mScales.begin(), mScales.end(), 0.0);
     double offset = 0;
     double height = mSize.mHeight;
@@ -41,21 +40,27 @@ void HorizontalSpacer::AddChildLayers(const PaintEvent* event)
         auto& child = mChildren[idx];
         double scale = mScales[idx];
         double delta = height * (scale/scaleSum);
-        auto size = child->GetSize();
+        auto size = child->getSize();
         if (size.mMaxHeight > 0 && delta > size.mMaxHeight)
         {
             delta = size.mMaxHeight;
         }
-        child->SetBounds(mSize.mWidth, unsigned(delta));
-        child->SetLocation(DiscretePoint(mLocation.GetX(), mLocation.GetY() + unsigned(offset)));
-        child->OnPaintEvent(event);
-        auto layers = child->GetLayers();
+        child->setBounds(mSize.mWidth, unsigned(delta));
+        child->setLocation(DiscretePoint(mLocation.GetX(), mLocation.GetY() + unsigned(offset)));
+        child->onPaintEvent(event);
+        auto layers = child->getLayers();
         mLayers.insert(mLayers.end(), layers.begin(), layers.end());
         offset += delta;
     }
 }
 
-void HorizontalSpacer::OnPaintEvent(const PaintEvent* event)
+void HorizontalSpacer::onPaintEvent(const PaintEvent* event)
 {
-    AddChildLayers(event);
+    if (!needsUpdate())
+    {
+        return;
+    }
+    mLayers.clear();
+
+    addChildLayers(event);
 }
diff --git a/src/ui_elements/widgets/HorizontalSpacer.h b/src/ui_elements/widgets/HorizontalSpacer.h
index c202cdf..b96d06d 100644
--- a/src/ui_elements/widgets/HorizontalSpacer.h
+++ b/src/ui_elements/widgets/HorizontalSpacer.h
@@ -12,13 +12,13 @@ public:
 
     static std::unique_ptr<HorizontalSpacer> Create();
 
-    void AddWidget(WidgetUPtr widget) override;
+    void addWidget(WidgetUPtr widget) override;
 
-    void AddWidgetWithScale(WidgetUPtr widget, double scale);
+    void addWidgetWithScale(WidgetUPtr widget, double scale);
 
-    void AddChildLayers(const PaintEvent* event) override;
+    void addChildLayers(const PaintEvent* event) override;
 
-    void OnPaintEvent(const PaintEvent* event) override;
+    void onPaintEvent(const PaintEvent* event) override;
 };
 
 using HorizontalSpacerUPtr = std::unique_ptr<HorizontalSpacer>;
diff --git a/src/ui_elements/widgets/Label.cpp b/src/ui_elements/widgets/Label.cpp
index dd4b2e8..cd076bc 100644
--- a/src/ui_elements/widgets/Label.cpp
+++ b/src/ui_elements/widgets/Label.cpp
@@ -16,26 +16,42 @@ std::unique_ptr<Label> Label::Create()
     return std::make_unique<Label>();
 }
 
-void Label::SetLabel(const std::string& text)
+void Label::setLabel(const std::string& text)
 {
-    mLabel = text;
-}
-
-void Label::OnPaintEvent(const PaintEvent* event)
-{
-    mMyLayers.clear();
-    AddBackground(event);
-
-    if(!mLabel.empty())
+    if (text != mLabel)
     {
-        unsigned fontOffset = unsigned(mLabel.size()) * 4;
-        auto middle = DiscretePoint(mLocation.GetX() + mSize.mWidth/2 - fontOffset,
-                mLocation.GetY() + mSize.mHeight/2 + 4);
-        auto textLayer = VisualLayer::Create();
-        auto textElement = TextElement::Create(mLabel, middle);
-        textElement->SetFillColor(Color::Create(*mBackgroundColor));
-        textLayer->SetText(std::move(textElement));
-        mMyLayers.push_back(std::move(textLayer));
+        mLabel = text;
+        mDirty = true;
+    }
+}
+
+void Label::onPaintEvent(const PaintEvent* event)
+{
+    if (!needsUpdate())
+    {
+        return;
+    }
+    mLayers.clear();
+
+    if (mDirty)
+    {
+        mMyLayers.clear();
+        if(!mVisible)
+        {
+            return;
+        }
+
+        if(!mLabel.empty())
+        {
+            unsigned fontOffset = unsigned(mLabel.size()) * 4;
+            auto middle = DiscretePoint(mLocation.GetX() + mSize.mWidth/2 - fontOffset,
+                    mLocation.GetY() + mSize.mHeight/2 + 4);
+            auto textLayer = VisualLayer::Create();
+            auto textElement = TextElement::Create(mLabel, middle);
+            textElement->SetFillColor(Color::Create(*mBackgroundColor));
+            textLayer->SetText(std::move(textElement));
+            mMyLayers.push_back(std::move(textLayer));
+        }
+        addMyLayers();
     }
-    CopyMyLayers();
 }
diff --git a/src/ui_elements/widgets/Label.h b/src/ui_elements/widgets/Label.h
index 6ea6ad3..42d620d 100644
--- a/src/ui_elements/widgets/Label.h
+++ b/src/ui_elements/widgets/Label.h
@@ -16,9 +16,9 @@ public:
 
     static std::unique_ptr<Label> Create();
 
-    void SetLabel(const std::string& text);
+    void setLabel(const std::string& text);
 
-    void OnPaintEvent(const PaintEvent* event) override;
+    void onPaintEvent(const PaintEvent* event) override;
 };
 
 using LabelUPtr = std::unique_ptr<Label>;
diff --git a/src/ui_elements/widgets/StackWidget.cpp b/src/ui_elements/widgets/StackWidget.cpp
index 878e3b7..f7f020c 100644
--- a/src/ui_elements/widgets/StackWidget.cpp
+++ b/src/ui_elements/widgets/StackWidget.cpp
@@ -16,11 +16,11 @@ void StackWidget::ShowChild(Widget* target)
     {
         if(child.get() == target)
         {
-            child->SetVisible(true);
+            child->setVisible(true);
         }
         else
         {
-            child->SetVisible(false);
+            child->setVisible(false);
         }
     }
 }
diff --git a/src/ui_elements/widgets/TextBox.cpp b/src/ui_elements/widgets/TextBox.cpp
index 19a4508..c01d7bb 100644
--- a/src/ui_elements/widgets/TextBox.cpp
+++ b/src/ui_elements/widgets/TextBox.cpp
@@ -36,7 +36,7 @@ void TextBox::AppendContent(const std::string& text)
     mContent += text;
 }
 
-bool TextBox::OnMyKeyboardEvent(const KeyboardEvent* event)
+bool TextBox::onMyKeyboardEvent(const KeyboardEvent* event)
 {
     if(!event) return false;
 
@@ -72,10 +72,10 @@ bool TextBox::OnMyKeyboardEvent(const KeyboardEvent* event)
     return true;
 }
 
-void TextBox::OnPaintEvent(const PaintEvent* event)
+void TextBox::onPaintEvent(const PaintEvent* event)
 {
     mMyLayers.clear();
-    AddBackground(event);
+    addBackground(event);
 
     double offset = 0;
     if(!mContent.empty())
@@ -99,5 +99,5 @@ void TextBox::OnPaintEvent(const PaintEvent* event)
             offset += 20;
         }
     }
-    CopyMyLayers();
+    addMyLayers();
 }
diff --git a/src/ui_elements/widgets/TextBox.h b/src/ui_elements/widgets/TextBox.h
index ad71200..bf95f2f 100644
--- a/src/ui_elements/widgets/TextBox.h
+++ b/src/ui_elements/widgets/TextBox.h
@@ -23,9 +23,9 @@ public:
 
     void AppendContent(const std::string& text);
 
-    void OnPaintEvent(const PaintEvent* event) override;
+    void onPaintEvent(const PaintEvent* event) override;
 
-    bool OnMyKeyboardEvent(const KeyboardEvent* event) override;
+    bool onMyKeyboardEvent(const KeyboardEvent* event) override;
 };
 
 using TextBoxUPtr = std::unique_ptr<TextBox>;
diff --git a/src/ui_elements/widgets/VerticalSpacer.cpp b/src/ui_elements/widgets/VerticalSpacer.cpp
index ed87905..411d32f 100644
--- a/src/ui_elements/widgets/VerticalSpacer.cpp
+++ b/src/ui_elements/widgets/VerticalSpacer.cpp
@@ -15,18 +15,18 @@ std::unique_ptr<VerticalSpacer> VerticalSpacer::Create()
     return std::make_unique<VerticalSpacer>();
 }
 
-void VerticalSpacer::AddWidget(WidgetUPtr widget)
+void VerticalSpacer::addWidget(WidgetUPtr widget)
 {
     AddWidgetWithScale(std::move(widget), 1.0);
 }
 
 void VerticalSpacer::AddWidgetWithScale(WidgetUPtr widget, double scale)
 {
-    Widget::AddWidget(std::move(widget));
+    Widget::addWidget(std::move(widget));
     mScales.push_back(scale);
 }
 
-void VerticalSpacer::AddChildLayers(const PaintEvent* event)
+void VerticalSpacer::addChildLayers(const PaintEvent* event)
 {
     mLayers.clear();
     double scaleSum  = std::accumulate(mScales.begin(), mScales.end(), 0.0);
@@ -37,16 +37,16 @@ void VerticalSpacer::AddChildLayers(const PaintEvent* event)
         auto& child = mChildren[idx];
         double scale = mScales[idx];
         double delta = mSize.mWidth * (scale/scaleSum);
-        child->SetBounds(unsigned(delta), mSize.mHeight);
-        child->SetLocation(DiscretePoint(mLocation.GetX() + unsigned(offset), mLocation.GetY()));
-        child->OnPaintEvent(event);
-        auto layers = child->GetLayers();
+        child->setBounds(unsigned(delta), mSize.mHeight);
+        child->setLocation(DiscretePoint(mLocation.GetX() + unsigned(offset), mLocation.GetY()));
+        child->onPaintEvent(event);
+        auto layers = child->getLayers();
         mLayers.insert(mLayers.end(), layers.begin(), layers.end());
         offset += delta;
     }
 }
 
-void VerticalSpacer::OnPaintEvent(const PaintEvent* event)
+void VerticalSpacer::onPaintEvent(const PaintEvent* event)
 {
-    AddChildLayers(event);
+    addChildLayers(event);
 }
diff --git a/src/ui_elements/widgets/VerticalSpacer.h b/src/ui_elements/widgets/VerticalSpacer.h
index a4940c1..df13d13 100644
--- a/src/ui_elements/widgets/VerticalSpacer.h
+++ b/src/ui_elements/widgets/VerticalSpacer.h
@@ -11,13 +11,13 @@ public:
 
     static std::unique_ptr<VerticalSpacer> Create();
 
-    void AddWidget(WidgetUPtr widget) override;
+    void addWidget(WidgetUPtr widget) override;
 
     void AddWidgetWithScale(WidgetUPtr widget, double scale);
 
-    void AddChildLayers(const PaintEvent* event) override;
+    void addChildLayers(const PaintEvent* event) override;
 
-    void OnPaintEvent(const PaintEvent* event) override;
+    void onPaintEvent(const PaintEvent* event) override;
 };
 
 using VerticalSpacerUPtr = std::unique_ptr<VerticalSpacer>;
diff --git a/src/ui_elements/widgets/Widget.cpp b/src/ui_elements/widgets/Widget.cpp
index 8c47b34..97eef31 100644
--- a/src/ui_elements/widgets/Widget.cpp
+++ b/src/ui_elements/widgets/Widget.cpp
@@ -10,6 +10,7 @@
 
 #include <algorithm>
 #include <iterator>
+#include <iostream>
 
 Widget::Widget()
     : mLocation(DiscretePoint(0, 0)),
@@ -37,52 +38,102 @@ std::unique_ptr<Widget> Widget::Create()
     return std::make_unique<Widget>();
 }
 
-void Widget::AddWidget(WidgetUPtr widget)
+void Widget::addWidget(WidgetUPtr widget)
 {
     mChildren.push_back(std::move(widget));
 }
 
-Widget::BoundedSize Widget::GetSize() const
+Widget::BoundedSize Widget::getSize() const
 {
     return mSize;
 }
 
-DiscretePoint Widget::GetLocation() const
+DiscretePoint Widget::getLocation() const
 {
     return mLocation;
 }
 
-std::vector<VisualLayer*> Widget::GetLayers() const
+std::vector<VisualLayer*> Widget::getLayers() const
 {
     return mLayers;
 }
 
-void Widget::SetSize(const BoundedSize& size)
+void Widget::setSize(const BoundedSize& size)
 {
-    mSize = size;
+    if (size != mSize)
+    {
+        mSize = size;
+        mDirty = true;
+    }
 }
 
-void Widget::SetMargin(unsigned margin)
+void Widget::setMargin(unsigned margin)
 {
-    mMargin = {margin, margin, margin, margin};
+    setMargin({margin, margin, margin, margin});
 }
 
-void Widget::SetMargin(const BoundaryOffset& margin)
+void Widget::setMargin(const BoundaryOffset& margin)
 {
-    mMargin = margin;
+    if (margin != mMargin)
+    {
+        mMargin = margin;
+        mDirty = true;
+    }
 }
 
-void Widget::SetPadding(unsigned padding)
+void Widget::setPadding(unsigned padding)
 {
-    mPadding = {padding, padding, padding, padding};
+    setPadding({padding, padding, padding, padding});
 }
 
-void Widget::SetPadding(const BoundaryOffset& padding)
+void Widget::setPadding(const BoundaryOffset& padding)
 {
-    mPadding = padding;
+    if (padding != mPadding)
+    {
+        mPadding = padding;
+        mDirty = true;
+    }
 }
 
-void Widget::CopyMyLayers()
+void Widget::setBounds(unsigned width, unsigned height)
+{
+    if (width != mSize.mWidth || height != mSize.mHeight)
+    {
+        mDirty = true;
+    }
+    mSize.mWidth = width;
+    mSize.mHeight = height;
+}
+
+void Widget::setBackgroundColor(ColorUPtr color)
+{
+    if (mBackgroundColor != color)
+    {
+        mBackgroundColor = std::move(color);
+        mDirty = true;
+    }
+}
+
+void Widget::setLocation(const DiscretePoint& loc)
+{
+    if (mLocation != loc)
+    {
+        mLocation = loc;
+        mDirty = true;
+    }
+}
+
+void Widget::setVisible(bool visible)
+{
+    if (mVisible != visible)
+    {
+        mDirty = true;
+    }
+    mVisible = visible;
+
+}
+
+void Widget::addMyLayers()
 {
     mLayers.clear();
     mLayers.reserve(mMyLayers.size());
@@ -90,73 +141,107 @@ void Widget::CopyMyLayers()
     std::transform(mMyLayers.begin(), mMyLayers.end(), std::back_inserter(mLayers), getRaw);
 }
 
-void Widget::SetBounds(unsigned width, unsigned height)
-{
-    mSize.mWidth = width;
-    mSize.mHeight = height;
-}
-
-void Widget::AddChildLayers(const PaintEvent* event)
+void Widget::addChildLayers(const PaintEvent* event)
 {
     for(auto& child: mChildren)
     {
-        child->SetBounds(mSize.mWidth, mSize.mHeight);
-        child->SetLocation(mLocation);
-        child->OnPaintEvent(event);
-        const auto layers = child->GetLayers();
+        child->setBounds(mSize.mWidth, mSize.mHeight);
+        child->setLocation(mLocation);
+        child->onPaintEvent(event);
+        const auto layers = child->getLayers();
         mLayers.insert(mLayers.end(), layers.begin(), layers.end());
     }
 }
 
-void Widget::OnPaintEvent(const PaintEvent* event)
+bool Widget::needsUpdate() const
 {
-    mMyLayers.clear();
-    mLayers.clear();
-
-    if(!mVisible)return;
-    AddBackground(event);
-    CopyMyLayers();
-    AddChildLayers(event);
+    if (mDirty)
+    {
+        return true;
+    }
+    for(auto& child: mChildren)
+    {
+        if (child->needsUpdate())
+        {
+            return true;
+        }
+    }
+    return false;
 }
 
-bool Widget::Contains(const DiscretePoint& loc) const
+void Widget::onPaintEvent(const PaintEvent* event)
 {
-    if(loc.GetX() < mLocation.GetX()) return false;
-    if(loc.GetX() > mLocation.GetX() + mSize.mWidth) return false;
-    if(loc.GetY() > mLocation.GetY() + mSize.mHeight) return false;
-    if(loc.GetY() < mLocation.GetY()) return false;
+    if (!needsUpdate())
+    {
+        return;
+    }
+    mLayers.clear();
+
+    if (mDirty)
+    {
+        mMyLayers.clear();
+        if(!mVisible)
+        {
+            return;
+        }
+        addBackground(event);
+        mDirty = false;
+    }
+    addMyLayers();
+    addChildLayers(event);
+}
+
+bool Widget::contains(const DiscretePoint& loc) const
+{
+    if(loc.GetX() < mLocation.GetX())
+    {
+        return false;
+    }
+    if(loc.GetX() > mLocation.GetX() + mSize.mWidth)
+    {
+        return false;
+    }
+    if(loc.GetY() > mLocation.GetY() + mSize.mHeight)
+    {
+        return false;
+    }
+    if(loc.GetY() < mLocation.GetY())
+    {
+        return false;
+    }
     return true;
 }
 
-bool Widget::OnKeyboardEvent(const KeyboardEvent* event)
+bool Widget::onKeyboardEvent(const KeyboardEvent* event)
 {
     bool inChild = false;
     for(const auto& child : mChildren)
     {
-        if(child->OnKeyboardEvent(event))
+        if(child->onKeyboardEvent(event))
         {
             inChild = true;
             break;
         }
     }
+
     if(!inChild)
     {
-        return OnMyKeyboardEvent(event);
+        return onMyKeyboardEvent(event);
     }
     return true;
 }
 
-bool Widget::OnMyKeyboardEvent(const KeyboardEvent* event)
+bool Widget::onMyKeyboardEvent(const KeyboardEvent* event)
 {
     return false;
 }
 
-bool Widget::OnMouseEvent(const MouseEvent* event)
+bool Widget::onMouseEvent(const MouseEvent* event)
 {
     bool inChild = false;
     for(const auto& child : mChildren)
     {
-        if(child->OnMouseEvent(event))
+        if(child->onMouseEvent(event))
         {
             inChild = true;
             break;
@@ -164,9 +249,9 @@ bool Widget::OnMouseEvent(const MouseEvent* event)
     }
     if(!inChild)
     {
-        if(Contains(event->GetClientLocation()))
+        if(contains(event->GetClientLocation()))
         {
-            OnMyMouseEvent(event);
+            onMyMouseEvent(event);
             return true;
         }
         else
@@ -177,36 +262,27 @@ bool Widget::OnMouseEvent(const MouseEvent* event)
     return true;
 }
 
-void Widget::OnMyMouseEvent(const MouseEvent* event)
+void Widget::onMyMouseEvent(const MouseEvent* event)
 {
 
 }
 
-void Widget::AddBackground(const PaintEvent* event)
+void Widget::addBackground(const PaintEvent* event)
 {
     unsigned locX = mLocation.GetX() + mMargin.mLeft;
     unsigned locY = mLocation.GetY() + mMargin.mTop;
     unsigned deltaX = mSize.mWidth - mMargin.mLeft - mMargin.mRight;
     unsigned deltaY = mSize.mHeight - mMargin.mTop - mMargin.mBottom;
-    auto shape = RectangleElement::Create(DiscretePoint(locX, locY),
-            deltaX, deltaY);
-    shape->SetFillColor(Color::Create(*mBackgroundColor));
+    auto shape = RectangleElement::Create(DiscretePoint(locX, locY), deltaX, deltaY);
+
+    std::cout << "Adding shape at : " << locX << " | " << locY << std::endl;
+    std::cout << "Has dimensions : " << deltaX << " | " << deltaY << std::endl;
+
+    auto color = Color::Create(*mBackgroundColor);
+
+    std::cout << "Has color : " << color->GetR() << " | " << color->GetG() << " | " << color->GetB() << " | " << color->GetAlpha() << std::endl;
+    shape->SetFillColor(std::move(color));
     auto shapeLayer = VisualLayer::Create();
     shapeLayer->SetShape(std::move(shape));
     mMyLayers.push_back(std::move(shapeLayer));
 }
-
-void Widget::SetBackgroundColor(ColorUPtr color)
-{
-    mBackgroundColor = std::move(color);
-}
-
-void Widget::SetLocation(const DiscretePoint& loc)
-{
-    mLocation = loc;
-}
-
-void Widget::SetVisible(bool visible)
-{
-    mVisible = visible;
-}
diff --git a/src/ui_elements/widgets/Widget.h b/src/ui_elements/widgets/Widget.h
index 40e6f30..55fd896 100644
--- a/src/ui_elements/widgets/Widget.h
+++ b/src/ui_elements/widgets/Widget.h
@@ -15,14 +15,42 @@ class Color;
 class Widget
 {
 public:
-    struct BoundaryOffset{
+    struct BoundaryOffset
+    {
+        bool operator==(const BoundaryOffset& rhs) const
+        {
+           return (mLeft == rhs.mLeft)
+           && (mRight == rhs.mRight)
+           && (mTop == rhs.mTop)
+           && (mBottom == rhs.mBottom);
+        }
+        bool operator!=(const BoundaryOffset& rhs) const
+        {
+          return !operator==(rhs);
+        }
+
         unsigned mLeft = 0;
         unsigned mRight = 0;
         unsigned mTop = 0;
         unsigned mBottom = 0;
     };
 
-    struct BoundedSize{
+    struct BoundedSize
+    {
+        bool operator==(const BoundedSize& rhs) const
+        {
+           return (mWidth == rhs.mWidth)
+           && (mMaxWidth == rhs.mMaxWidth)
+           && (mMinWidth == rhs.mMinWidth)
+           && (mHeight == rhs.mHeight)
+           && (mMaxHeight == rhs.mMaxHeight)
+           && (mMinHeight == rhs.mMinHeight);
+        }
+        bool operator!=(const BoundedSize& rhs) const
+        {
+          return !operator==(rhs);
+        }
+
         unsigned mWidth = 0;
         unsigned mMaxWidth = 0;
         unsigned mMinWidth = 0;
@@ -31,19 +59,6 @@ public:
         unsigned mMinHeight = 0;
     };
 
-protected:
-    DiscretePoint mLocation;
-    BoundedSize mSize;
-    BoundaryOffset mPadding;
-    BoundaryOffset mMargin;
-    std::vector<std::unique_ptr<VisualLayer> > mMyLayers;
-    std::vector<VisualLayer*> mLayers;
-    std::vector<std::unique_ptr<Widget> > mChildren;
-    unsigned mBorderThickness;
-    std::unique_ptr<Color> mBackgroundColor;
-    std::unique_ptr<Color> mBorderColor;
-    bool mVisible;
-
 public:
 
     Widget();
@@ -52,51 +67,66 @@ public:
 
     static std::unique_ptr<Widget> Create();
 
-    virtual void AddWidget(std::unique_ptr<Widget> widget);
+    virtual void addWidget(std::unique_ptr<Widget> widget);
 
-    BoundedSize GetSize() const;
+    BoundedSize getSize() const;
 
-    std::vector<VisualLayer*> GetLayers() const;
+    std::vector<VisualLayer*> getLayers() const;
 
-    DiscretePoint GetLocation() const;
+    DiscretePoint getLocation() const;
 
-    virtual void OnPaintEvent(const PaintEvent* event);
+    virtual void onPaintEvent(const PaintEvent* event);
 
-    virtual bool OnMouseEvent(const MouseEvent* event);
+    virtual bool onMouseEvent(const MouseEvent* event);
 
-    virtual bool OnKeyboardEvent(const KeyboardEvent* event);
+    virtual bool onKeyboardEvent(const KeyboardEvent* event);
 
-    bool Contains(const DiscretePoint& loc) const;
+    bool contains(const DiscretePoint& loc) const;
 
-    void SetBackgroundColor(std::unique_ptr<Color> color);
+    void setBackgroundColor(std::unique_ptr<Color> color);
 
-    void SetBounds(unsigned width, unsigned height);
+    void setBounds(unsigned width, unsigned height);
 
-    void SetSize(const BoundedSize& size);
+    void setSize(const BoundedSize& size);
 
-    void SetMargin(unsigned margin);
+    void setMargin(unsigned margin);
 
-    void SetMargin(const BoundaryOffset& margin);
+    void setMargin(const BoundaryOffset& margin);
 
-    void SetPadding(unsigned padding);
+    void setPadding(unsigned padding);
 
-    void SetPadding(const BoundaryOffset& padding);
+    void setPadding(const BoundaryOffset& padding);
 
-    void SetLocation(const DiscretePoint& loc);
+    void setLocation(const DiscretePoint& loc);
 
-    void SetVisible(bool visible);
+    void setVisible(bool visible);
 
 protected:
+    virtual bool onMyKeyboardEvent(const KeyboardEvent* event);
 
-    virtual bool OnMyKeyboardEvent(const KeyboardEvent* event);
+    virtual void onMyMouseEvent(const MouseEvent* event);
 
-    virtual void OnMyMouseEvent(const MouseEvent* event);
+    virtual void addChildLayers(const PaintEvent* event);
 
-    virtual void AddChildLayers(const PaintEvent* event);
+    virtual void addBackground(const PaintEvent* event);
 
-    virtual void AddBackground(const PaintEvent* event);
+    void addMyLayers();
 
-    void CopyMyLayers();
+    bool needsUpdate() const;
+
+protected:
+    DiscretePoint mLocation;
+    BoundedSize mSize;
+    BoundaryOffset mPadding;
+    BoundaryOffset mMargin;
+    std::vector<std::unique_ptr<VisualLayer> > mMyLayers;
+    std::vector<VisualLayer*> mLayers;
+    std::vector<std::unique_ptr<Widget> > mChildren;
+    unsigned mBorderThickness{0};
+    std::unique_ptr<Color> mBackgroundColor;
+    std::unique_ptr<Color> mBorderColor;
+    bool mVisible{false};
+    bool mDirty{true};
 };
 
 using WidgetUPtr = std::unique_ptr<Widget>;
diff --git a/src/windows/managers/DesktopManager.cpp b/src/windows/managers/DesktopManager.cpp
index 845dfec..8a547f9 100644
--- a/src/windows/managers/DesktopManager.cpp
+++ b/src/windows/managers/DesktopManager.cpp
@@ -32,7 +32,6 @@ void DesktopManager::ClearEvents()
 
 void DesktopManager::OnKeyboardEvent(const KeyboardEvent* event)
 {
-    MLOG_INFO("Got key event: " << event->GetKeyString());
     GetWindowManager()->OnKeyboardEvent(event);
 }
 
diff --git a/src/windows/managers/WindowManager.h b/src/windows/managers/WindowManager.h
index 56a9c2f..0ba191b 100644
--- a/src/windows/managers/WindowManager.h
+++ b/src/windows/managers/WindowManager.h
@@ -10,9 +10,7 @@
 
 class WindowManager
 {
-
 public:
-
     WindowManager();
 
     ~WindowManager();
diff --git a/src/windows/ui_interfaces/x11/XcbInterface.cpp b/src/windows/ui_interfaces/x11/XcbInterface.cpp
index 1734008..12e1453 100644
--- a/src/windows/ui_interfaces/x11/XcbInterface.cpp
+++ b/src/windows/ui_interfaces/x11/XcbInterface.cpp
@@ -180,8 +180,7 @@ void XcbInterface::onPaint()
     auto mainWindow = mDesktopManager->GetWindowManager()->GetMainWindow();
     auto defaultScreen = mDesktopManager->GetDefaultScreen();
     auto xcb_screen = dynamic_cast<XcbScreen*>(defaultScreen->GetPlatformScreen());
-    mXcbWindowInterface->Paint(mainWindow, mConnection,
-            xcb_screen->GetNativeScreen(), xcb_screen->GetGraphicsContext());
+    mXcbWindowInterface->Paint(mainWindow, mConnection, xcb_screen->GetNativeScreen(), xcb_screen->GetGraphicsContext());
 }
 
 void XcbInterface::onExposeEvent(xcb_expose_event_t* event)
diff --git a/src/windows/ui_interfaces/x11/XcbLayerInterface.cpp b/src/windows/ui_interfaces/x11/XcbLayerInterface.cpp
index 39a7d95..afdcae0 100644
--- a/src/windows/ui_interfaces/x11/XcbLayerInterface.cpp
+++ b/src/windows/ui_interfaces/x11/XcbLayerInterface.cpp
@@ -8,8 +8,7 @@
 
 uint32_t XcbLayerInterface::GetColor(const Color* color)
 {
-    return XcbLayerInterface::GetColor(color->GetR(),
-            color->GetG(), color->GetB());
+    return XcbLayerInterface::GetColor(color->GetR(), color->GetG(), color->GetB());
 }
 
 uint32_t XcbLayerInterface::GetColor(int r, int g, int b)
@@ -17,8 +16,7 @@ uint32_t XcbLayerInterface::GetColor(int r, int g, int b)
     return b + (g<<8) + (r<<16);
 }
 
-void XcbLayerInterface::ModifyGcColor(xcb_connection_t* connection, xcb_gcontext_t gc,
-        const Color* color)
+void XcbLayerInterface::ModifyGcColor(xcb_connection_t* connection, xcb_gcontext_t gc, const Color* color)
 {
     uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_GRAPHICS_EXPOSURES;
     uint32_t values[2] = {XcbLayerInterface::GetColor(color), 0};
@@ -26,9 +24,7 @@ void XcbLayerInterface::ModifyGcColor(xcb_connection_t* connection, xcb_gcontext
     xcb_change_gc(connection, gc, mask, values);
 }
 
-void XcbLayerInterface::AddLayer(xcb_connection_t* connection,
-        xcb_screen_t* screen, xcb_window_t window, xcb_gcontext_t gc,
-        VisualLayer* layer)
+void XcbLayerInterface::AddLayer(xcb_connection_t* connection, xcb_screen_t* screen, xcb_window_t window, xcb_gcontext_t gc, VisualLayer* layer)
 {
     if(layer->HasText())
     {
diff --git a/src/windows/ui_interfaces/x11/XcbLayerInterface.h b/src/windows/ui_interfaces/x11/XcbLayerInterface.h
index 799f4e0..2976437 100644
--- a/src/windows/ui_interfaces/x11/XcbLayerInterface.h
+++ b/src/windows/ui_interfaces/x11/XcbLayerInterface.h
@@ -8,16 +8,12 @@ class VisualLayer;
 class XcbLayerInterface
 {
 public:
-
     static uint32_t GetColor(const Color* color);
 
     static uint32_t GetColor(int r, int g, int b);
 
-    static void ModifyGcColor(xcb_connection_t* connection, xcb_gcontext_t gc,
-            const Color* color);
+    static void ModifyGcColor(xcb_connection_t* connection, xcb_gcontext_t gc, const Color* color);
 
-    static void AddLayer(xcb_connection_t* connection,
-            xcb_screen_t* screen, xcb_window_t window, xcb_gcontext_t gc,
-            VisualLayer* layer);
+    static void AddLayer(xcb_connection_t* connection, xcb_screen_t* screen, xcb_window_t window, xcb_gcontext_t gc, VisualLayer* layer);
 };