system/lib/lcd/gui/Core/GUICore.c

180 lines
4.6 KiB
C

/*
*********************************************************************************************************
* uC/GUI
* 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 : GUICore.C
Purpose : Core routines
---------------------------END-OF-HEADER------------------------------
*/
#include <stddef.h> /* needed for definition of NULL */
#define GL_CORE_C
#include "GUI_Private.h"
#include "GUIDebug.h"
#if GUI_WINSUPPORT
#include "WM_GUI.h"
#include "WM.h"
#endif
/*********************************************************************
*
* Static data
*
**********************************************************************
*/
#if GUI_SUPPORT_AA
static const tLCD_HL_APIList _HL_APIList = {
LCD_DrawHLine,
LCD_DrawPixel};
#endif
/*********************************************************************
*
* Static code
*
**********************************************************************
*/
/*********************************************************************
*
* _InitContext
*
* Purpose
* Initializes the given context.
*
* Special considerations
* Make sure that no GUI functions are called, because locking is
* not allowed here (GUITASK_INIT not yet called).
*/
static void _InitContext(GUI_CONTEXT *pContext)
{
/* memset(..,0,..) is not required, as this function is called only at startup of the GUI when data is 0 */
#if GUI_SUPPORT_DEVICES
pContext->pDeviceAPI = LCD_aAPI[0]; /* &LCD_L0_APIList; */
#endif
pContext->pClipRect_HL = &GUI_Context.ClipRect;
LCD_L0_GetRect(&pContext->ClipRect);
#if GUI_SUPPORT_AA
pContext->pLCD_HL = &_HL_APIList;
#endif
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 */
#if GUI_SUPPORT_AA
pContext->AA_Factor = 3;
#endif
pContext->Color = GUI_INVALID_COLOR;
pContext->BkColor = GUI_INVALID_COLOR;
LCD_SetBkColor(GUI_DEFAULT_BKCOLOR);
LCD_SetColor(GUI_DEFAULT_COLOR);
pContext->pUC_API = &GUI__API_TableNone;
}
/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* GUI_ClearRect
*/
void GUI_ClearRect(int x0, int y0, int x1, int y1)
{
GUI_DRAWMODE PrevDraw;
#if GUI_WINSUPPORT
GUI_RECT r;
#endif
GUI_LOCK();
PrevDraw = LCD_SetDrawMode(GUI_DRAWMODE_REV);
#if GUI_WINSUPPORT
WM_ADDORG(x0, y0);
WM_ADDORG(x1, y1);
r.x0 = x0;
r.x1 = x1;
r.y0 = y0;
r.y1 = y1;
WM_ITERATE_START(&r)
{
#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_Init
*
* Purpose:
* Init of GUI internal data structures & variables
*/
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
GUITASK_COPY_CONTEXT();
#if defined(GUI_TRIAL_VERSION)
{
int i;
for (i = 0; i < 10; i++)
{
GUI_DispString("This uC-GUI library\n"
"is for evaluation\n"
"purpose only.\n"
"A license is\n"
"required to use\n"
"it in a product\n\n"
"www.micrium.com\n");
GUI_GotoXY(0, 0);
}
}
GUI_Clear();
#endif
return r;
}
/*************************** End of file ****************************/