www.pudn.com > uC-GUI-V3-98.zip > MEMDEV_MemDev.c

/* 
********************************************************************************************************* 
*                                             uC/GUI V3.98 
*                        Universal graphic software for embedded applications 
* 
*                       (c) Copyright 2002, Micrium Inc., Weston, FL 
*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH 
* 
*              µC/GUI is protected by international copyright laws. Knowledge of the 
*              source code may not be used to write a similar product. This file may 
*              only be used in accordance with a license and should not be redistributed 
*              in any way. We appreciate your understanding and fairness. 
* 
---------------------------------------------------------------------- 
File        : MEMDEV_MemDev.c 
Purpose     : Simple demo shows the use of memory devices 
---------------------------------------------------------------------- 
*/ 
 
#include "GUI.h" 
 
/******************************************************************* 
* 
*       static variables 
* 
******************************************************************** 
*/ 
 
static GUI_RECT Rect = {0, 130, 100, 180}; 
 
/******************************************************************* 
* 
*       static code 
* 
******************************************************************** 
*/ 
 
/******************************************************************* 
* 
*       _Draw 
*/ 
static void _Draw(int Delay) { 
  GUI_SetPenSize(5); 
  GUI_SetColor(GUI_RED); 
  GUI_DrawLine(Rect.x0 + 3, Rect.y0 + 3, Rect.x1 - 3, Rect.y1 - 3); 
  GUI_Delay(Delay); 
  GUI_SetColor(GUI_GREEN); 
  GUI_DrawLine(Rect.x0 + 3, Rect.y1 - 3, Rect.x1 - 3, Rect.y0 + 3); 
  GUI_Delay(Delay); 
  GUI_SetColor(GUI_WHITE); 
  GUI_SetFont(&GUI_FontComic24B_ASCII); 
  GUI_SetTextMode(GUI_TM_TRANS); 
  GUI_DispStringInRect("Closed", &Rect, GUI_TA_HCENTER | GUI_TA_VCENTER); 
  GUI_Delay(Delay); 
} 
 
/******************************************************************* 
* 
*       _DemoMemDev 
*/ 
static void _DemoMemDev(void) { 
  GUI_MEMDEV_Handle hMem; 
  int i; 
  GUI_SetBkColor(GUI_BLACK); 
  GUI_Clear(); 
  GUI_SetColor(GUI_WHITE); 
  GUI_SetFont(&GUI_Font24_ASCII); 
  GUI_DispStringHCenterAt("MEMDEV_MemDev - Sample", 160, 5); 
  GUI_SetFont(&GUI_Font8x16); 
  GUI_DispStringHCenterAt("Shows the advantage of using a\nmemorydevice", 160,50); 
  GUI_SetFont(&GUI_Font8_1); 
  GUI_DispStringHCenterAt("Draws the picture\nwithout a\nmemory device", 50, 90); 
  GUI_DispStringHCenterAt("Draws the picture\nusing a\nmemory device", 270, 90); 
  /* Create the memory device */ 
  hMem = GUI_MEMDEV_Create(Rect.x0, Rect.y0, Rect.x1 - Rect.x0, Rect.y1 - Rect.y0); 
  /* Routes the drawing operations to the memory device */ 
  GUI_MEMDEV_Select(hMem); 
  _Draw(0); 
  /* Routes the drawing operations to the LCD */ 
  GUI_MEMDEV_Select(0); 
  while (1) { 
    for (i = 0; i < 3; i++) { 
      GUI_Delay(250); 
      GUI_ClearRect(LCD_GetXSize() - Rect.x1, Rect.y0, LCD_GetXSize(), Rect.y1); 
      GUI_Delay(250); 
      GUI_MEMDEV_CopyToLCDAt(hMem, LCD_GetXSize() - Rect.x1, Rect.y0); 
    } 
    GUI_Delay(500);   
    /* Uses no memory device */ 
    _Draw(400); 
    GUI_Delay(400); 
    GUI_ClearRect(0, 130, 319, 219); 
  } 
  GUI_MEMDEV_Delete(hMem); /* Destroy memory device */ 
} 
 
/******************************************************************* 
* 
*       MainTask 
* 
*       Demonstrates the use of memory devices 
* 
******************************************************************** 
*/ 
 
void MainTask(void) { 
  GUI_Init(); 
  _DemoMemDev(); 
}