Use fooEvent() type names for the virtual event handlers.

Widgets/Button.cpp

@@ -19,7 +19,7 @@ void Button::setCaption(String&& caption)
     update();
 }
 
-void Button::onPaint(PaintEvent&)
+void Button::paintEvent(PaintEvent&)
 {
     Color buttonColor = Color::LightGray;
     Color highlightColor = Color::White;
@@ -69,23 +69,23 @@ void Button::onPaint(PaintEvent&)
     }
 }
 
-void Button::onMouseDown(MouseEvent& event)
+void Button::mouseDownEvent(MouseEvent& event)
 {
-    printf("Button::onMouseDown: x=%d, y=%d, button=%u\n", event.x(), event.y(), (unsigned)event.button());
+    printf("Button::mouseDownEvent: x=%d, y=%d, button=%u\n", event.x(), event.y(), (unsigned)event.button());
 
     m_beingPressed = true;
 
     update();
-    Widget::onMouseDown(event);
+    Widget::mouseDownEvent(event);
 }
 
-void Button::onMouseUp(MouseEvent& event)
+void Button::mouseUpEvent(MouseEvent& event)
 {
-    printf("Button::onMouseUp: x=%d, y=%d, button=%u\n", event.x(), event.y(), (unsigned)event.button());
+    printf("Button::mouseUpEvent: x=%d, y=%d, button=%u\n", event.x(), event.y(), (unsigned)event.button());
 
     m_beingPressed = false;
 
     update();
-    Widget::onMouseUp(event);
+    Widget::mouseUpEvent(event);
 }
 

Widgets/Button.h

@@ -12,9 +12,9 @@ public:
     void setCaption(String&&);
 
 private:
-    virtual void onPaint(PaintEvent&) override;
+    virtual void paintEvent(PaintEvent&) override;
-    virtual void onMouseDown(MouseEvent&) override;
+    virtual void mouseDownEvent(MouseEvent&) override;
-    virtual void onMouseUp(MouseEvent&) override;
+    virtual void mouseUpEvent(MouseEvent&) override;
 
     virtual const char* className() const override { return "Button"; }
 

Widgets/CheckBox.cpp

@@ -74,7 +74,7 @@ static const char* checkedBitmap = {
     "###########"
 };
 
-void CheckBox::onPaint(PaintEvent&)
+void CheckBox::paintEvent(PaintEvent&)
 {
     Painter painter(*this);
     auto bitmap = CBitmap::createFromASCII(isChecked() ? checkedBitmap : uncheckedBitmap, 11, 11);
@@ -95,9 +95,9 @@ void CheckBox::onPaint(PaintEvent&)
     }
 }
 
-void CheckBox::onMouseDown(MouseEvent& event)
+void CheckBox::mouseDownEvent(MouseEvent& event)
 {
-    printf("CheckBox::onMouseDown: x=%d, y=%d, button=%u\n", event.x(), event.y(), (unsigned)event.button());
+    printf("CheckBox::mouseDownEvent: x=%d, y=%d, button=%u\n", event.x(), event.y(), (unsigned)event.button());
 
     setIsChecked(!isChecked());
 }

Widgets/CheckBox.h

@@ -15,8 +15,8 @@ public:
     void setIsChecked(bool);
 
 private:
-    virtual void onPaint(PaintEvent&) override;
+    virtual void paintEvent(PaintEvent&) override;
-    virtual void onMouseDown(MouseEvent&) override;
+    virtual void mouseDownEvent(MouseEvent&) override;
 
     virtual const char* className() const override { return "CheckBox"; }
 

Widgets/ClockWidget.cpp

@@ -13,7 +13,7 @@ ClockWidget::~ClockWidget()
 {
 }
 
-void ClockWidget::onPaint(PaintEvent&)
+void ClockWidget::paintEvent(PaintEvent&)
 {
     auto now = time(nullptr);
     auto& tm = *localtime(&now);
@@ -26,7 +26,7 @@ void ClockWidget::onPaint(PaintEvent&)
     painter.drawText(rect(), timeBuf, Painter::TextAlignment::Center, Color::Black);
 }
 
-void ClockWidget::onTimer(TimerEvent&)
+void ClockWidget::timerEvent(TimerEvent&)
 {
     auto now = time(nullptr);
     if (now == m_lastSeenTimestamp)

Widgets/ClockWidget.h

@@ -8,8 +8,8 @@ public:
     virtual ~ClockWidget() override;
 
 private:
-    virtual void onPaint(PaintEvent&) override;
+    virtual void paintEvent(PaintEvent&) override;
-    virtual void onTimer(TimerEvent&) override;
+    virtual void timerEvent(TimerEvent&) override;
 
     dword m_lastSeenTimestamp { 0 };
 };

Widgets/Label.cpp

@@ -19,7 +19,7 @@ void Label::setText(String&& text)
     update();
 }
 
-void Label::onPaint(PaintEvent&)
+void Label::paintEvent(PaintEvent&)
 {
     Painter painter(*this);
     painter.fillRect({ 0, 0, width(), height() }, backgroundColor());
@@ -27,9 +27,9 @@ void Label::onPaint(PaintEvent&)
         painter.drawText({ 4, 4, width(), height() }, text(), Painter::TextAlignment::TopLeft, foregroundColor());
 }
 
-void Label::onMouseMove(MouseEvent& event)
+void Label::mouseMoveEvent(MouseEvent& event)
 {
-    printf("Label::onMouseMove: x=%d, y=%d\n", event.x(), event.y());
+    printf("Label::mouseMoveEvent: x=%d, y=%d\n", event.x(), event.y());
-    Widget::onMouseMove(event);
+    Widget::mouseMoveEvent(event);
 }
 

Widgets/Label.h

@@ -12,8 +12,8 @@ public:
     void setText(String&&);
 
 private:
-    virtual void onPaint(PaintEvent&) override;
+    virtual void paintEvent(PaintEvent&) override;
-    virtual void onMouseMove(MouseEvent&) override;
+    virtual void mouseMoveEvent(MouseEvent&) override;
 
     virtual const char* className() const override { return "Label"; }
 

Widgets/ListBox.cpp

@@ -17,7 +17,7 @@ unsigned ListBox::itemHeight() const
     return Font::defaultFont().glyphHeight() + 2;
 }
 
-void ListBox::onPaint(PaintEvent&)
+void ListBox::paintEvent(PaintEvent&)
 {
     Painter painter(*this);
 
@@ -44,9 +44,9 @@ void ListBox::onPaint(PaintEvent&)
     }
 }
 
-void ListBox::onMouseDown(MouseEvent& event)
+void ListBox::mouseDownEvent(MouseEvent& event)
 {
-    printf("ListBox::onMouseDown %d,%d\n", event.x(), event.y());
+    printf("ListBox::mouseDownEvent %d,%d\n", event.x(), event.y());
     for (unsigned i = m_scrollOffset; i < m_items.size(); ++i) {
         Rect itemRect(1, 1 + (i * itemHeight()), width() - 2, itemHeight());
         if (itemRect.contains(event.position())) {

Widgets/ListBox.h

@@ -11,8 +11,8 @@ public:
     int selectedIndex() const { return m_selectedIndex; }
 
 private:
-    virtual void onPaint(PaintEvent&) override;
+    virtual void paintEvent(PaintEvent&) override;
-    virtual void onMouseDown(MouseEvent&) override;
+    virtual void mouseDownEvent(MouseEvent&) override;
 
     unsigned itemHeight() const;
 

Widgets/Object.cpp

@@ -27,7 +27,7 @@ void Object::event(Event& event)
 {
     switch (event.type()) {
     case Event::Timer:
-        return onTimer(static_cast<TimerEvent&>(event));
+        return timerEvent(static_cast<TimerEvent&>(event));
     case Event::Invalid:
         ASSERT_NOT_REACHED();
         break;
@@ -51,7 +51,7 @@ void Object::removeChild(Object& object)
     }
 }
 
-void Object::onTimer(TimerEvent&)
+void Object::timerEvent(TimerEvent&)
 {
 }
 

Widgets/Object.h

@@ -25,7 +25,7 @@ public:
     bool hasTimer() const { return m_timerID; }
 
 private:
-    virtual void onTimer(TimerEvent&);
+    virtual void timerEvent(TimerEvent&);
 
     void addChild(Object&);
     void removeChild(Object&);

Widgets/RootWidget.cpp

@@ -11,11 +11,11 @@ RootWidget::~RootWidget()
 {
 }
 
-void RootWidget::onPaint(PaintEvent& event)
+void RootWidget::paintEvent(PaintEvent& event)
 {
-    Widget::onPaint(event);
+    Widget::paintEvent(event);
 
-    printf("RootWidget::onPaint: %d,%d %dx%d\n",
+    printf("RootWidget::paintEvent: %d,%d %dx%d\n",
             event.rect().x(),
             event.rect().y(),
             event.rect().width(),
@@ -24,9 +24,9 @@ void RootWidget::onPaint(PaintEvent& event)
     painter.fillRect(event.rect(), Color(0, 72, 96));
 }
 
-void RootWidget::onMouseMove(MouseEvent& event)
+void RootWidget::mouseMoveEvent(MouseEvent& event)
 {
-    //printf("RootWidget::onMouseMove: x=%d, y=%d\n", event.x(), event.y());
+    //printf("RootWidget::mouseMoveEvent: x=%d, y=%d\n", event.x(), event.y());
-    Widget::onMouseMove(event);
+    Widget::mouseMoveEvent(event);
 }
 

Widgets/RootWidget.h

@@ -8,6 +8,6 @@ public:
     virtual ~RootWidget() override;
 
 private:
-    virtual void onPaint(PaintEvent&) override;
+    virtual void paintEvent(PaintEvent&) override;
-    virtual void onMouseMove(MouseEvent&) override;
+    virtual void mouseMoveEvent(MouseEvent&) override;
 };

Widgets/TerminalWidget.cpp

@@ -60,7 +60,7 @@ CharacterWithAttributes& TerminalWidget::at(unsigned row, unsigned column)
     return m_screen[row * columns() + column];
 }
 
-void TerminalWidget::onPaint(PaintEvent&)
+void TerminalWidget::paintEvent(PaintEvent&)
 {
     Painter painter(*this);
     painter.fillRect(rect(), Color::Black);
@@ -144,16 +144,16 @@ void TerminalWidget::onReceive(byte ch)
     update();
 }
 
-void TerminalWidget::onKeyDown(KeyEvent& event)
+void TerminalWidget::keyDownEvent(KeyEvent& event)
 {
     if (event.text().isEmpty())
         return;
     write(g_fd, event.text().characters(), event.text().length());
 }
 
-void TerminalWidget::onKeyUp(KeyEvent& event)
+void TerminalWidget::keyUpEvent(KeyEvent& event)
 {
-    return Widget::onKeyUp(event);
+    return Widget::keyUpEvent(event);
 }
 
 void TerminalWidget::bell()
@@ -165,7 +165,7 @@ void TerminalWidget::bell()
     update();
 }
 
-void TerminalWidget::onTimer(TimerEvent&)
+void TerminalWidget::timerEvent(TimerEvent&)
 {
     m_belling = false;
     stopTimer();

Widgets/TerminalWidget.h

@@ -22,10 +22,10 @@ public:
 private:
     CharacterWithAttributes& at(unsigned row, unsigned column);
 
-    virtual void onPaint(PaintEvent&) override;
+    virtual void paintEvent(PaintEvent&) override;
-    virtual void onKeyDown(KeyEvent&) override;
+    virtual void keyDownEvent(KeyEvent&) override;
-    virtual void onKeyUp(KeyEvent&) override;
+    virtual void keyUpEvent(KeyEvent&) override;
-    virtual void onTimer(TimerEvent&) override;
+    virtual void timerEvent(TimerEvent&) override;
 
     void bell();
 

Widgets/TextBox.cpp

@@ -21,7 +21,7 @@ void TextBox::setText(String&& text)
     update();
 }
 
-void TextBox::onPaint(PaintEvent&)
+void TextBox::paintEvent(PaintEvent&)
 {
     Painter painter(*this);
 
@@ -63,7 +63,7 @@ void TextBox::onPaint(PaintEvent&)
     }
 }
 
-void TextBox::onMouseDown(MouseEvent&)
+void TextBox::mouseDownEvent(MouseEvent&)
 {
 }
 
@@ -90,7 +90,7 @@ void TextBox::handleBackspace()
     update();
 }
 
-void TextBox::onKeyDown(KeyEvent& event)
+void TextBox::keyDownEvent(KeyEvent& event)
 {
     switch (event.key()) {
     case KeyboardKey::LeftArrow:
@@ -126,7 +126,7 @@ void TextBox::onKeyDown(KeyEvent& event)
     }
 }
 
-void TextBox::onTimer(TimerEvent&)
+void TextBox::timerEvent(TimerEvent&)
 {
     // FIXME: Disable the timer when not focused.
     if (!isFocused())

Widgets/TextBox.h

@@ -11,10 +11,10 @@ public:
     void setText(String&&);
 
 private:
-    virtual void onPaint(PaintEvent&) override;
+    virtual void paintEvent(PaintEvent&) override;
-    virtual void onMouseDown(MouseEvent&) override;
+    virtual void mouseDownEvent(MouseEvent&) override;
-    virtual void onKeyDown(KeyEvent&) override;
+    virtual void keyDownEvent(KeyEvent&) override;
-    virtual void onTimer(TimerEvent&) override;
+    virtual void timerEvent(TimerEvent&) override;
 
     void handleBackspace();
 

Widgets/Widget.cpp

@@ -37,64 +37,64 @@ void Widget::event(Event& event)
                 return;
         }
         m_hasPendingPaintEvent = false;
-        return onPaint(static_cast<PaintEvent&>(event));
+        return paintEvent(static_cast<PaintEvent&>(event));
     case Event::Show:
-        return onShow(static_cast<ShowEvent&>(event));
+        return showEvent(static_cast<ShowEvent&>(event));
     case Event::Hide:
-        return onHide(static_cast<HideEvent&>(event));
+        return hideEvent(static_cast<HideEvent&>(event));
     case Event::KeyDown:
-        return onKeyDown(static_cast<KeyEvent&>(event));
+        return keyDownEvent(static_cast<KeyEvent&>(event));
     case Event::KeyUp:
-        return onKeyUp(static_cast<KeyEvent&>(event));
+        return keyUpEvent(static_cast<KeyEvent&>(event));
     case Event::MouseMove:
-        return onMouseMove(static_cast<MouseEvent&>(event));
+        return mouseMoveEvent(static_cast<MouseEvent&>(event));
     case Event::MouseDown:
         if (auto* win = window()) {
             // FIXME: if (acceptsFocus())
             win->setFocusedWidget(this);
         }
-        return onMouseDown(static_cast<MouseEvent&>(event));
+        return mouseDownEvent(static_cast<MouseEvent&>(event));
     case Event::MouseUp:
-        return onMouseUp(static_cast<MouseEvent&>(event));
+        return mouseUpEvent(static_cast<MouseEvent&>(event));
     default:
         return Object::event(event);
     }
 }
 
-void Widget::onPaint(PaintEvent& event)
+void Widget::paintEvent(PaintEvent& event)
 {
-    //printf("Widget::onPaint :)\n");
+    //printf("Widget::paintEvent :)\n");
     for (auto* ch : children()) {
         auto* child = (Widget*)ch;
-        child->onPaint(event);
+        child->paintEvent(event);
     }
 }
 
-void Widget::onShow(ShowEvent&)
+void Widget::showEvent(ShowEvent&)
 {
 }
 
-void Widget::onHide(HideEvent&)
+void Widget::hideEvent(HideEvent&)
 {
 }
 
-void Widget::onKeyDown(KeyEvent&)
+void Widget::keyDownEvent(KeyEvent&)
 {
 }
 
-void Widget::onKeyUp(KeyEvent&)
+void Widget::keyUpEvent(KeyEvent&)
 {
 }
 
-void Widget::onMouseDown(MouseEvent&)
+void Widget::mouseDownEvent(MouseEvent&)
 {
 }
 
-void Widget::onMouseUp(MouseEvent&)
+void Widget::mouseUpEvent(MouseEvent&)
 {
 }
 
-void Widget::onMouseMove(MouseEvent&)
+void Widget::mouseMoveEvent(MouseEvent&)
 {
 }
 

Widgets/Widget.h

@@ -14,14 +14,14 @@ public:
     virtual ~Widget();
 
     virtual void event(Event&);
-    virtual void onPaint(PaintEvent&);
+    virtual void paintEvent(PaintEvent&);
-    virtual void onShow(ShowEvent&);
+    virtual void showEvent(ShowEvent&);
-    virtual void onHide(HideEvent&);
+    virtual void hideEvent(HideEvent&);
-    virtual void onKeyDown(KeyEvent&);
+    virtual void keyDownEvent(KeyEvent&);
-    virtual void onKeyUp(KeyEvent&);
+    virtual void keyUpEvent(KeyEvent&);
-    virtual void onMouseMove(MouseEvent&);
+    virtual void mouseMoveEvent(MouseEvent&);
-    virtual void onMouseDown(MouseEvent&);
+    virtual void mouseDownEvent(MouseEvent&);
-    virtual void onMouseUp(MouseEvent&);
+    virtual void mouseUpEvent(MouseEvent&);
 
     Rect relativeRect() const { return m_relativeRect; }
     Point relativePosition() const { return m_relativeRect.location(); }