[escher] [apps] Add a title bar in all apps

Change-Id: If545e9b6cd96aa1189d83120f047ac7746a5a9d6

apps/apps_window.cpp

@@ -0,0 +1,43 @@
+#include "apps_window.h"
+extern "C" {
+#include <assert.h>
+}
+
+/* Title Bar View */
+
+void AppsWindow::TitleBarView::drawRect(KDContext * ctx, KDRect rect) const {
+  ctx->fillRect(bounds(), KDColorBlack);
+}
+
+/* Window */
+
+AppsWindow::AppsWindow() :
+  Window(),
+  m_titleBarView(TitleBarView())
+{
+}
+
+int AppsWindow::numberOfSubviews() const {
+  return (m_contentView == nullptr ? 1 : 2);
+}
+
+View * AppsWindow::subviewAtIndex(int index) {
+  if (index == 0) {
+    return &m_titleBarView;
+  }
+  assert(m_contentView != nullptr && index == 1);
+  return m_contentView;
+}
+
+void AppsWindow::layoutSubviews() {
+  m_titleBarView.setFrame(KDRect(0, 0, bounds().width(), k_titleBarHeight));
+  if (m_contentView != nullptr) {
+    m_contentView->setFrame(KDRect(0, k_titleBarHeight, bounds().width(), bounds().height()-k_titleBarHeight));
+  }
+}
+
+#if ESCHER_VIEW_LOGGING
+const char * AppsWindow::className() const {
+  return "Window";
+}
+#endif