#include <math.h>
#include <stddef.h>
#include "gui\core\GUI.h"
//#include "gui\core\LCD_ConfDefaults.h"

#include "Target\44b.h"
#include "Target\44blib.h"
/********************************************/
//   ARMSYS實驗二十三：繪制動畫
//   描述：利用GUI提供的API函數繪制動態圖像                   
/********************************************/
/*******************************************************************
*
*      Structure containing information for drawing routine
*
*******************************************************************
*/

typedef struct {
  I16 *aY;
} PARAM;

/*******************************************************************
*
*                    Defines
*
********************************************************************
*/
#define LCD_YSIZE  240
#define LCD_XSIZE  320
#define YSIZE   (LCD_YSIZE - 100)
#define DEG2RAD (3.1415926f / 180)
#if LCD_BITSPERPIXEL == 1
  #define COLOR_GRAPH0 GUI_WHITE
  #define COLOR_GRAPH1 GUI_WHITE
#else
  #define COLOR_GRAPH0 GUI_GREEN
  #define COLOR_GRAPH1 GUI_YELLOW
#endif

/*******************************************************************
*
*                    Draws the graph area
*
********************************************************************
*/

static void Draw(void * p) {
  int i;
  PARAM * pParam = (PARAM *)p;
  GUI_SetBkColor(GUI_BLACK);
  GUI_SetColor(GUI_DARKGRAY);
  GUI_ClearRect(19, (LCD_YSIZE - 20) - YSIZE, (LCD_XSIZE - 2), (LCD_YSIZE - 20));//畫深灰色的網格線
  for (i = 0; i < (YSIZE / 2); i += 20) {
    GUI_DrawHLine((LCD_YSIZE - 20) - (YSIZE / 2) + i, 19, (LCD_XSIZE - 2));
    if (i) {
      GUI_DrawHLine((LCD_YSIZE - 20) - (YSIZE / 2) - i, 19, (LCD_XSIZE - 2));
    }
  }
  for (i = 40; i < (LCD_XSIZE - 20); i += 40) {
    GUI_DrawVLine(18 + i, (LCD_YSIZE - 20) - YSIZE, (LCD_YSIZE - 21));
  }
  GUI_SetColor(COLOR_GRAPH0);
  GUI_DrawGraph(pParam->aY, (LCD_XSIZE - 20), 19, (LCD_YSIZE - 20) - YSIZE);//繪制綠色曲線
}

static void Draw2(void * p) {
  PARAM * pParam = (PARAM *)p;
  Draw(p);
  GUI_SetColor(COLOR_GRAPH1);
  GUI_DrawGraph(pParam->aY+15, (LCD_XSIZE - 20), 19, (LCD_YSIZE - 20) - YSIZE);//繪制黃色曲線
}

/*******************************************************************
*
*               Draws a sine wave
*
********************************************************************
*/

static void GetSineData(I16 * paY, int n) {//取得一個周期的405個點的Y軸坐標
  int i;
  for (i = 0; i < n; i++) {
    float s = sin(i * DEG2RAD * 4);
    paY[i] = s * YSIZE / 2 + YSIZE / 2 + 1;
  }
}

static void DemoSineWave(void) {
  PARAM Param;
  I16 * pStart;
  int t0, Cnt = 0;
  GUI_RECT Rect = {19, (LCD_YSIZE - 20) - YSIZE, (LCD_XSIZE - 2), (LCD_YSIZE - 19)};
  GUI_HMEM hMem = GUI_ALLOC_Alloc(405 * sizeof(I16));
  GUI_SetColor(GUI_WHITE);
  GUI_SetBkColor(GUI_RED);
  GUI_ClearRect(0, 0, LCD_XSIZE, 60);
  GUI_SetFont(&GUI_FontComic18B_1);
  GUI_DispStringAt("Sine wave", 10, 20);
  pStart = GUI_ALLOC_h2p(hMem);
  GetSineData(pStart, 405);
  GUI_SetFont(&GUI_Font6x8);
  t0 = GUI_GetTime();
  while((GUI_GetTime() - t0) < 10000) {
    int t1, tDiff2;
    if (Cnt++ % 90) {
      Param.aY++;//曲線位移
    } else {
      Param.aY = pStart;
    }
    t1 = GUI_GetTime();
    GUI_MEMDEV_Draw(&Rect, Draw2, &Param, 0, 0);
    tDiff2 = GUI_GetTime() - t1;
    if (tDiff2 < 100) {
      GUI_Delay(100 - tDiff2);
    }
  }
  GUI_ALLOC_Free(hMem);
}

/*******************************************************************
*
*                    Labels the x & y-axis
*
********************************************************************
*/

static void Label(void) {//繪制外框
  int x, y;
  GUI_SetBkColor(GUI_RED);
  GUI_Clear();
  GUI_SetPenSize(1);
  GUI_ClearRect(0, (LCD_YSIZE - 21) - YSIZE, (LCD_XSIZE - 1), (LCD_YSIZE - 1));
  GUI_DrawRect(18, (LCD_YSIZE - 21) - YSIZE, (LCD_XSIZE - 1), (LCD_YSIZE - 18));
  GUI_SetFont(&GUI_Font6x8);
  for (x = 0; x < (LCD_XSIZE - 20); x += 40) {
    int xPos = x + 18;
    GUI_DrawVLine(xPos, (LCD_YSIZE - 20), (LCD_YSIZE - 14));
    GUI_DispDecAt(x / 40, xPos - 2, (LCD_YSIZE - 9), 1);
  }
  for (y = 0; y < YSIZE / 2; y += 20) {
    int yPos = (LCD_YSIZE - 20) - YSIZE / 2 + y;
    GUI_DrawHLine(yPos, 13, 18);
    if (y) {
      GUI_GotoXY(1, yPos - 4);
      GUI_DispSDec(-y / 20, 2);
      yPos = (LCD_YSIZE - 20) - YSIZE / 2 - y;
      GUI_DrawHLine(yPos, 13, 18);
      GUI_GotoXY(1, yPos - 4);
      GUI_DispSDec(y / 20, 2);
    } else {
      GUI_DispCharAt('0', 7, yPos - 4);
    }
  }
}

/*
  *******************************************************************
  *
  *              main()
  *
  *******************************************************************
*/
void Main(void) {

    int i=0;
  
    rSYSCFG=CACHECFG;// Using 8KB Cache//
	Port_Init();
	Uart_Init(0,115200);
	Led_Display(0xf);
	Delay(0);
    Beep(0x01);
	Uart_Select(0); //Select UART0//
	Uart_Printf("\n*************************************************************************");
	Beep(0x0);
	Uart_Printf("\n*                             立泰電子                                   *");
	Uart_Printf("\n*                        -GUI應用:動畫顯示-                              *");
	Uart_Printf("\n*                          Version 1.10                                 *");    
	Uart_Printf("\n*                     Email:rao_dali@263.net                            *");
	Uart_Printf("\n*             UART Config--COM:115.2kbps,8Bit,NP,UART0                  *");
	Uart_Printf("\n*------------------Begin to Start Drawing,OK? (Y/N)------－－-----------*");
	Led_Display(0x0);

    GUI_Init();//對GUI進行初始化（包括對LCD顯示的初始化）
    GUI_MEMDEV_Load();
    Label();
  while(1) {
    DemoSineWave();
  }

}