Class CustomWindow

examples/floating_window.cpp:13–86

using namespace text;

class CustomWindow {
public:
  void create(const std::string& title, int w, int h, os::Window* parent = nullptr)
  {
    os::WindowSpec spec;

    if (parent) {
      spec.floating(true);
      spec.parent(parent);
      spec.minimizable(false);

      gfx::Rect rc = parent->frame();
      spec.frame(gfx::Rect(rc.x2() - w / 2, rc.y + rc.h / 2 - h / 2, w, h));
      spec.position(os::WindowSpec::Position::Frame);
    }
    else {
      spec.contentRect(gfx::Rect(0, 0, w, h));
      spec.position(os::WindowSpec::Position::Default);
    }

    m_nativeWindow = System::instance()->makeWindow(spec);
    m_nativeWindow->setTitle(title);
    m_nativeWindow->setUserData(this);

    redraw();
  }

  void close() { m_nativeWindow = nullptr; }

  void focus() { m_nativeWindow->activate(); }

  bool isVisible() const { return (m_nativeWindow && m_nativeWindow->isVisible()); }

  void redraw()
  {
    auto rc = m_nativeWindow->surface()->bounds();
    onRedraw(m_nativeWindow->surface(), rc);

    if (m_nativeWindow->isVisible())
      m_nativeWindow->invalidateRegion(gfx::Region(rc));
    else
      m_nativeWindow->setVisible(true);
  }

  virtual bool isFloating() const { return false; }

  virtual bool handleEvent(os::Event& ev)
  {
    switch (ev.type()) {
      case os::Event::CloseWindow:  return false;

      case os::Event::ResizeWindow: redraw(); break;

      case os::Event::KeyDown:
        if (ev.scancode() == os::kKeyEsc)
          return false;
        else if (ev.scancode() == os::kKeyEnter || ev.scancode() == os::kKeyEnterPad)
          onEnterKey();