Escher: Add a simple TextView

Change-Id: I61aae49414b722ee71e02ed29d8ca26d14472dad

escher/Makefile

@@ -2,5 +2,6 @@ SFLAGS += -Iescher/include
 
 objs += $(addprefix escher/src/,\
   solid_color_view.o\
+  text_view.o\
   view.o\
 )

escher/include/escher.h

@@ -2,6 +2,7 @@
 #define ESCHER_H
 
 #include <escher/solid_color_view.h>
+#include <escher/text_view.h>
 #include <escher/view.h>
 
 #endif

escher/include/escher/text_view.h

@@ -0,0 +1,14 @@
+#ifndef ESCHER_TEXT_VIEW_H
+#define ESCHER_TEXT_VIEW_H
+
+#include <escher/view.h>
+
+class TextView : public View {
+public:
+  TextView(KDPoint origin, const char * text);
+  void drawRect(KDRect rect) override;
+private:
+  const char * m_text;
+};
+
+#endif

escher/src/text_view.cpp

@@ -0,0 +1,18 @@
+#include <escher/text_view.h>
+
+KDRect ViewFrame(KDPoint origin, const char * text) {
+  KDRect r;
+  r.origin = origin;
+  r.size = KDStringSize(text);
+  return r;
+}
+
+TextView::TextView(KDPoint origin, const char * text) :
+  View(ViewFrame(origin, text)) {
+  m_text = text;
+}
+
+void TextView::drawRect(KDRect rect) {
+  KDPoint zero = {0, 0};
+  KDDrawString(m_text, zero, 0);
+}