First pass at button drawing implementation

button.cpp

@@ -0,0 +1,25 @@
+#include "button.h"
+#include "nano_gui.h"
+#include "color_theme.h"
+#include "ubitx.h"//b
+
+void drawButton(Button* button)
+{
+  uint16_t tc = COLOR_INACTIVE_TEXT;
+  uint16_t bgc = COLOR_INACTIVE_BACKGROUND;
+  const uint16_t bdc = COLOR_INACTIVE_BORDER;
+  const char* text = nullptr;
+  if(nullptr != button->text){
+    text = button->text;
+  }
+  else if(nullptr != button->text_override){
+    button->text_override(b,sizeof(b));
+    text = b;
+  }
+  else{
+    //Something's messed up
+    //Serial.println(F("No text for button!"));
+    return;
+  }
+  displayText(text, button->x, button->y, button->w, button->h, tc, bgc, bdc);
+}