gui_sif_prop.c

MCB2300_ucgui_LCD320240.rar LPC2368的uc/gui的移植

/*
*********************************************************************************************************
*   											 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		: GUI_SIF_Prop.c
Purpose 	: Implementation of system independend fonts
---------------------------END-OF-HEADER------------------------------
*/

#include "GUI_Private.h"

/*********************************************************************
*
*   	Static code
*
**********************************************************************
*/

/*********************************************************************
*
*   	_GetNumCharAreas
*/
static int _GetNumCharAreas(const GUI_FONT GUI_UNI_PTR *pFont)
{
	U16 NumCharAreas;
	const U8 * pData;
	pData = (const U8 *) pFont->p.pFontData + 14 /* Skip ID, YSize, YDist, Baseline, LHeight and CHeight */;
	NumCharAreas = GUI__Read16(&pData);
	return NumCharAreas;
}

/*********************************************************************
*
*   	_GetpCharInfo
*/
static const U8 * _GetpCharInfo(const GUI_FONT GUI_UNI_PTR *pFont, U16P c)
{
	const U8 * pCharArea, *pCharInfo;
	int NumCharAreas;
	NumCharAreas = _GetNumCharAreas(pFont); 				/* Get # of char areas */
	pCharArea = (const U8 *) pFont->p.pFontData + sizeof(GUI_SI_FONT);  					/* Set char area pointer to first char area */
	pCharInfo = pCharArea + sizeof(GUI_SIF_CHAR_AREA) * NumCharAreas; /* Set char info pointer to first character info */
	do
	{
		GUI_SIF_CHAR_AREA CharArea;
		CharArea.First = GUI__Read16(&pCharArea);
		CharArea.Last = GUI__Read16(&pCharArea);
		if ((c >= CharArea.First) && (c <= CharArea.Last))
		{
			pCharInfo += sizeof(GUI_SIF_CHARINFO) * (c - CharArea.First);
			return pCharInfo;
		}
		pCharInfo += sizeof(GUI_SIF_CHARINFO) * (CharArea.Last - CharArea.First + 1);
	}
	while (--NumCharAreas);
	return 0;
}

/*********************************************************************
*
*   	Exported code
*
**********************************************************************
*/

/*********************************************************************
*
*   	GUI_SIF_DispChar
*/
static void _GUI_SIF_DispChar(U16P c)
{
	const U8 * pCharInfo, *pData;
	pCharInfo = _GetpCharInfo(GUI_Context.pAFont, c);
	if (pCharInfo)
	{
		GUI_DRAWMODE DrawMode, OldDrawMode;
		GUI_SIF_CHARINFO CharInfo;
		CharInfo.XSize = GUI__Read16(&pCharInfo);
		CharInfo.XDist = GUI__Read16(&pCharInfo);
		CharInfo.BytesPerLine = GUI__Read16(&pCharInfo);
		GUI__Read16(&pCharInfo); /* Dummy */
		CharInfo.OffData = GUI__Read32(&pCharInfo);
		pData = (const U8 *) GUI_Context.pAFont->p.pFontData + CharInfo.OffData;
		DrawMode = GUI_Context.TextMode;
		OldDrawMode = LCD_SetDrawMode(DrawMode);
		LCD_DrawBitmap(GUI_Context.DispPosX, GUI_Context.DispPosY, CharInfo.XSize, GUI_Context.pAFont->YSize, GUI_Context.pAFont->XMag, GUI_Context.pAFont->YMag, 1, CharInfo.BytesPerLine, pData, &LCD_BKCOLORINDEX);
		/* Fill empty pixel lines */
		if (GUI_Context.pAFont->YDist > GUI_Context.pAFont->YSize)
		{
			int YMag = GUI_Context.pAFont->YMag;
			int YDist = GUI_Context.pAFont->YDist *YMag;
			int YSize = GUI_Context.pAFont->YSize *YMag;
			if (DrawMode != LCD_DRAWMODE_TRANS)
			{
				LCD_COLOR OldColor = GUI_GetColor();
				GUI_SetColor(GUI_GetBkColor());
				LCD_FillRect(GUI_Context.DispPosX, GUI_Context.DispPosY + YSize, GUI_Context.DispPosX + CharInfo.XSize, GUI_Context.DispPosY + YDist);
				GUI_SetColor(OldColor);
			}
		}
		LCD_SetDrawMode(OldDrawMode); /* Restore draw mode */
		GUI_Context.DispPosX += CharInfo.XDist;
	}
}

/*********************************************************************
*
*   	GUI_SIF_GetCharDistX
*/
static int _GUI_SIF_GetCharDistX(U16P c)
{
	const U8 * pCharInfo;
	U16 DistX = 0;
	pCharInfo = _GetpCharInfo(GUI_Context.pAFont, c); /* Get pointer to char info data */
	if (pCharInfo)
	{
		pCharInfo += 2 /* Skip XSize */;
		DistX = GUI__Read16(&pCharInfo);
	}
	return DistX;
}

/*********************************************************************
*
*   	GUI_SIF_GetFontInfo
*/
static void _GUI_SIF_GetFontInfo(const GUI_FONT GUI_UNI_PTR *pFont, GUI_FONTINFO *pfi)
{
	const U8 * pData;
	pData = (const U8 *) pFont->p.pFontData + 4 /* Skip XSize and XDist */;
	pfi->Baseline = GUI__Read16(&pData);
	pfi->LHeight = GUI__Read16(&pData);
	pfi->CHeight = GUI__Read16(&pData);
	pfi->Flags = GUI_FONTINFO_FLAG_PROP;
}

/*********************************************************************
*
*   	GUI_SIF_IsInFont
*/
static char _GUI_SIF_IsInFont(const GUI_FONT GUI_UNI_PTR *pFont, U16 c)
{
	const U8 * pCharInfo;
	GUI_USE_PARA(pFont);
	pCharInfo = _GetpCharInfo(GUI_Context.pAFont, c);
	return (pCharInfo) ? 1 : 0;
}

/*********************************************************************
*
*   	GUI_SIF_TYPE_PROP
*/
const tGUI_SIF_APIList GUI_SIF_APIList_Prop = {
_GUI_SIF_DispChar,
_GUI_SIF_GetCharDistX,
_GUI_SIF_GetFontInfo,
_GUI_SIF_IsInFont
};