[Escher] Implement a StackViewController

Change-Id: I1b4ecc996a1af2bef1b8ce6cfa71457d3345c00e

escher/src/stack_view.cpp

@@ -0,0 +1,31 @@
+#include <escher/stack_view.h>
+extern "C" {
+#include <assert.h>
+}
+
+StackView::StackView() :
+  ChildlessView(),
+  m_name(nullptr)
+{
+}
+
+void StackView::setName(const char * name) {
+  m_name = name;
+  markRectAsDirty(bounds());
+}
+
+void StackView::drawRect(KDContext * ctx, KDRect rect) const {
+  ctx->fillRect(rect, KDColor(0xFFCD50));
+  ctx->drawString(m_name, {0,0}, true);
+}
+
+#if ESCHER_VIEW_LOGGING
+const char * StackView::className() const {
+  return "StackView";
+}
+
+void StackView::logAttributes(std::ostream &os) const {
+  View::logAttributes(os);
+  os << " name=\"" << m_name << "\"";
+}
+#endif