//
// GUIslice Library Examples
// - Calvin Hass
// - https://www.impulseadventure.com/elec/guislice-gui.html
// - https://github.com/ImpulseAdventure/GUIslice
// - Example 01 (Arduino):
//   - Display a box
//   - No touchscreen required
//
// ARDUINO NOTES:
// - GUIslice_config.h must be edited to match the pinout connections
//   between the Arduino CPU and the display controller (see ADAGFX_PIN_*).
//

#include "GUIslice.h"
#include "GUIslice_drv.h"

// Enumerations for pages, elements, fonts, images
enum {E_PG_MAIN};
enum {E_ELEM_BOX};

// Instantiate the GUI
#define MAX_PAGE            1
#define MAX_ELEM_PG_MAIN    1

gslc_tsGui                  m_gui;
gslc_tsDriver               m_drv;
gslc_tsPage                 m_asPage[MAX_PAGE];
gslc_tsElem                 m_asPageElem[MAX_ELEM_PG_MAIN];
gslc_tsElemRef              m_asPageElemRef[MAX_ELEM_PG_MAIN];

// Define debug message function
static int16_t DebugOut(char ch) { Serial.write(ch); return 0; }

void setup()
{
  gslc_tsElemRef*  pElemRef = NULL;

  // Initialize debug output
  Serial.begin(9600);
  gslc_InitDebug(&DebugOut);
  //delay(1000);  // NOTE: Some devices require a delay after Serial.begin() before serial port can be used

  // Initialize
  if (!gslc_Init(&m_gui,&m_drv,m_asPage,MAX_PAGE,NULL,0)) { return; }

  gslc_PageAdd(&m_gui,E_PG_MAIN,m_asPageElem,MAX_ELEM_PG_MAIN,m_asPageElemRef,MAX_ELEM_PG_MAIN);

  // Background flat color
  gslc_SetBkgndColor(&m_gui,GSLC_COL_GRAY_DK2);

  // Create page elements
  pElemRef = gslc_ElemCreateBox(&m_gui,E_ELEM_BOX,E_PG_MAIN,(gslc_tsRect){10,50,300,150});
  gslc_ElemSetCol(&m_gui,pElemRef,GSLC_COL_WHITE,GSLC_COL_BLACK,GSLC_COL_BLACK);

  // Start up display on main page
  gslc_SetPageCur(&m_gui,E_PG_MAIN);
}

void loop()
{
  // Periodically call GUIslice update function
  gslc_Update(&m_gui);

  // Main code here...
  // In a real program, we would detect button presses and take action.
  // For this simple demo, we will terminate after 2 seconds.
  delay(2000);

  // Close down display
  gslc_Quit(&m_gui);

  // Since we can't really exit an Arduino program, we're just going to
  // enter an infinite loop here.
  while (1) { }
}
