/***********************************************************************************************************                                                uC/GUI*                        Universal graphic software for embedded applications**                       (c) Copyright 2002, Micrium Inc., Weston, FL*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH**              礐/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        : GUICore.CPurpose     : Core file for emWin GSC---------------------------END-OF-HEADER------------------------------*/#include <stddef.h>           /* needed for definition of NULL */#define  GL_CORE_C#include "GUI_Private.H"#include "GUIDebug.h"/***********************************************************************            GUI_ClearRect************************************************************************/void GUI_ClearRect(int x0, int y0, int x1, int y1) {  GUI_DRAWMODE PrevDraw;  GUI_LOCK();  PrevDraw = LCD_SetDrawMode(GUI_DRAWMODE_REV);  #if GUI_WINSUPPORT    WM_ADDORG(x0,y0);    WM_ADDORG(x1,y1);    WM_ITERATE_START(NULL) {  #endif  LCD_FillRect(x0,y0,x1,y1);  #if GUI_WINSUPPORT    } WM_ITERATE_END();  #endif  LCD_SetDrawMode(PrevDraw);  GUI_UNLOCK();}/***********************************************************************            GUI_Clear************************************************************************/void GUI_Clear(void) {  GUI_GotoXY(0,0);     /* Reset text cursor to upper left */  GUI_ClearRect(GUI_XMIN, GUI_YMIN, GUI_XMAX, GUI_YMAX);}/*        ********************************************************        *                                                      *        *                 GUI_SelectLCD                        *        *                                                      *        *********************************************************/#if GUI_SUPPORT_MEMDEVvoid GUI_SelectLCD(void) {  int hDevDataOld = GUI_Context.hDevData;  GUI_Context.hDevData = 0;  GUI_Context.pDeviceAPI   = &LCD_L0_APIList;  GUI_Context.pClipRect_HL = &GUI_Context.ClipRect;  LCD_SetClipRectMax();  /* If we are switching batck, restore the former clip rect */  if (hDevDataOld)    GUI_Context.ClipRect = GUI_Context.ClipRectPrev;  #if GUI_WINSUPPORT    WM_Activate();  #endif}#endif/*        ********************************************************        *                                                      *        *                 GUI_Init                             *        *                                                      *        *     Init of GUI internal data structures & variables *        *                                                      *        *********************************************************/const tLCD_HL_APIList LCD_HL_APIList = {  LCD_DrawHLine,  LCD_DrawPixel};static void _InitContext(GUI_CONTEXT* pContext) {  #if GUI_SUPPORT_MEMDEV    GUI_SelectLCD();  #else    LCD_SetClipRectMax();  #endif  pContext->pLCD_HL      = &LCD_HL_APIList;  pContext->pAFont       = GUI_DEFAULT_FONT;  pContext->pClipRect_HL = &GUI_Context.ClipRect;  pContext->PenSize      = 1;  /* Variables in WM module */  #if GUI_WINSUPPORT    pContext->hAWin    = WM_GetDesktopWindow();  #endif  /* Variables in GUI_AA module */  pContext->AA_Factor = 3;  LCD_SetBkColor(GUI_DEFAULT_BKCOLOR);  LCD_SetColor(GUI_DEFAULT_COLOR);}int GUI_Init(void) {  int r;  GUI_DEBUG_LOG("\nGUI_Init()");  /* Init system wide globals first */  GUI_DecChar = '.';  GUI_X_Init();  /* Init context */  _InitContext(&GUI_Context);  GUITASK_INIT();  r = LCD_Init();  #if GUI_WINSUPPORT    WM_Init();  #endif  return r;}