gui_sellcd.c

uCGUI

/*************************************************************************************************************
                                                   uC/GUI
                                               嵌入式通用图形软件
File        : GUI_SelLCD.C
Purpose     : emWin GSC, selection of LCD display--液晶显示器的选择
************************************************************************************************************/
#include <stddef.h>           /* needed for definition of NULL */
#include "GUI_Private.H"
#include "GUIDebug.h"
#include "LCD_Private.h"      /* Required for configuration, APIList */

#if (LCD_NUM_DISPLAYS > 1) && (GUI_SUPPORT_MEMDEV)

/*************************************************************************************************************
*             LCD Device                        
*       (if memory devices are supported--如果存储设备的支持)       
*************************************************************************************************************/
const tLCDDEV_APIList LCD_L0_1_APIList = 
{
#if LCD_YMAG_1 == 1
  LCD_L0_1_Color2Index,
  LCD_L0_1_DrawBitmap,
  LCD_L0_1_DrawHLine,
  LCD_L0_1_DrawVLine,
  LCD_L0_1_FillRect,
  LCD_L0_1_GetPixelIndex,
  LCD_L0_1_GetRect,
  LCD_L0_1_Index2Color,
  LCD_L0_1_SetPixelIndex,
  LCD_L0_1_XorPixel
#else
  LCD_L0_1_Color2Index,
  LCD_L0_1_MAG_DrawBitmap,
  LCD_L0_1_MAG_DrawHLine,
  LCD_L0_1_MAG_DrawVLine,
  LCD_L0_1_MAG_FillRect,
  LCD_L0_1_MAG_GetPixelIndex,
  LCD_L0_1_GetRect,          /* Original routine is o.k. here, since we use the logical
                                 coordinates for clipping, which are not magnified */
  LCD_L0_1_Index2Color,
  LCD_L0_1_MAG_SetPixelIndex,
  LCD_L0_1_MAG_XorPixel
#endif
};

/***************************************************************************************************************
*                 GUI_SelLCD
***************************************************************************************************************/
const tLCDDEV_APIList * const aAPI[] = 
{
  &LCD_L0_APIList
#if LCD_NUM_DISPLAYS >1
  ,&LCD_L0_1_APIList
#endif
};


unsigned int GUI_SelLCD(unsigned int Index) 
{
  unsigned int OldIndex = 0;
  if (Index < LCD_NUM_DISPLAYS) 
  {
    GUI_LOCK();
    GUI_SetDefault();
    OldIndex = (GUI_Context.pDeviceAPI == aAPI[0]) ? 0 : 1;
    GUI_Context.pDeviceAPI = aAPI[Index];
    LCD_SetClipRectMax();
  }
  GUI_UNLOCK();
  return OldIndex;
}

#else

void GUI_SelLCD_(void) 
{}

#endif