atbeditor.c

GSM手机设计软件代码

	char		asciiChar;
	int			punctuation;
	T_ED_LINE	*line;

#ifdef TRACE_ATBEDITOR
	TRACE_FUNCTION("ATB_edit_WordWrap()");
#endif

	editor->endOfLine = FALSE;
	line = ATB_edit_LineGet(editor, editor->numLines);

	/* Get the character from the buffer */

	editor->startPos = editor->thischar.pos;
	character = ATB_string_GetChar(&editor->attr->text, editor->thischar.pos);
	
	/* Find the character's dimensions */

	/* If we're multi-tapping a character, or in fixed-width mode, it has the maximum width */
	
	if (editor->multitap && editor->thischar.pos==editor->cursor.pos)
		editor->thischar.width = ATB_display_GetCharWidth(UNICODE_WIDEST_CHAR, &editor->thischar.format);
	else
		editor->thischar.width = ATB_display_GetCharWidth(character, &editor->thischar.format);						// Character width
	
	editor->thischar.height = ATB_display_GetCharHeight(character, &editor->thischar.format);

	/* Check to see if last character was a CR/LF */

	if (editor->precedingEOL)
	{
		editor->endOfLine = TRUE;
		editor->precedingEOL = FALSE;
	}
	else										// otherwise, character included on line
	{
		if (editor->thischar.height > line->height)		// if height>height so far...
			line->height = editor->thischar.height;		// ...adjust the height so far
	}
			
	/* Set flags appropriate for the character */
	
	switch(character)
	{
		case UNICODE_EOLN:
			editor->endOfText = TRUE;							// We're at the end of the editor text
		break;

		case UNICODE_LINEFEED:
		case UNICODE_CR:
			editor->precedingEOL = TRUE;							// This is an end of line
		break;
		
		default:
		break;
	}

	/* Check if wrapping required */
	
	if ( (editor->thischar.lineWidth+editor->thischar.width)>editor->attr->win_size.sx )		// Current character will go off edge of editor
	{
		editor->endOfLine = TRUE;

		// If we've found a space, and it's a word wrapping mode */
		
		if (editor->space.pos > 0 && editor->precedingSpace==FALSE
			&& !ATB_edit_Mode(editor, ED_MODE_OVERWRITE)) 
		{
			editor->thischar.pos			= editor->space.pos;	// reset character position back to here
			editor->startPos				= editor->space.pos;	// character is space, so start of block=character pos
			editor->thischar.width			= editor->space.width;
			editor->thischar.height			= editor->space.height;
			ATB_display_CopyFormat(&editor->thischar.format,&editor->space.format);
			line->height = editor->space.lineHeight;
			editor->endOfText			= FALSE;					// If we're wrapping on an EOLN, we've gone back
		}
		editor->space.pos = 0;								// Reset space position to start of line
		editor->precedingSpace = FALSE;
	}
	else
	{
		if (editor->precedingSpace)	// Remember enough info so that this point can be restored
		{
			editor->space.pos			= editor->startPos;				// Store position of start of current block, or just character pos.	
			editor->space.width			= editor->thischar.width;
			editor->space.height		= editor->thischar.height;
			ATB_display_CopyFormat(&editor->space.format,&editor->thischar.format);
			editor->space.lineHeight	= line->height;
			editor->precedingSpace		= FALSE;
		}
		
		punctuation = FALSE;
		if (character==UNICODE_SPACE)  								 // Wrap only on spaces
		{
			punctuation = TRUE;
		}
	
		if ((punctuation) && (editor->thischar.lineWidth > 0)) 					//A space is a good point for a soft break
		{
			editor->precedingSpace = TRUE;
		}
	}

	return;
}


/*******************************************************************************

 $Function:		ATB_edit_UpdateCursorPos

 $Description:	Update the cursor's vertical position, based on its position within
				the string.
 
 $Returns:		None

 $Arguments:	editor		- The editor data

*******************************************************************************/

static void ATB_edit_UpdateCursorPos(T_ED_DATA *editor)
{
	USHORT lineNo;
	USHORT	lineHeight;
	USHORT	editHeight = editor->attr->win_size.sy;
	T_ED_LINE *line;

#ifdef TRACE_ATBEDITOR
	TRACE_FUNCTION("ATB_edit_UpdateCursorPos()");
#endif

	editor->cursor.y = 0;										// Recalculate cursor Y position...
	editor->viewHeight = 0;										// ...and height of viewable screen...
	editor->totalHeight = 0;									// ...and total height of screen...
	editor->viewStartPos = 0;									// ...and the start pixel position of the view...
	editor->linesPerScreen = 0;								// ...and number of lines to the screen
	lineNo = 0;
		
	while (lineNo<editor->numLines)
	{
		line = ATB_edit_LineGet(editor, lineNo);

		lineHeight = line->height;
	
		if (lineNo==editor->cursor.line)
			editor->cursor.y = editor->viewHeight;							// Y position of cursor

		if (lineNo==editor->winStartLine)									// starting posn rel to start of editor text
			editor->viewStartPos = editor->totalHeight;
		
		if (lineNo>=editor->winStartLine && (editor->viewHeight+lineHeight)<=editHeight)
		{
			editor->viewHeight += lineHeight;
			editor->linesPerScreen++;
		}

		editor->totalHeight += lineHeight;
		lineNo++;
	}

	line = ATB_edit_LineGet(editor, editor->cursor.line);
	editor->cursor.height  = line->height;	// Change its height

	return;
}


/************************************/  
/* GLOBAL PROCEDURES				*/
/* Add/removing words in the editor    */
/************************************/

/*******************************************************************************

 $Function:		ATB_edit_InsertString

 $Description:	Insert a string at the cursor.
 
 $Returns:		ED_BAD_HANDLE	- Editor data pointer is null
 				ED_OK			- OK

 $Arguments:	editor		- The editor data
 				insText		- The text to insert

*******************************************************************************/

ED_RES ATB_edit_InsertString (T_ED_DATA *editor, T_ATB_TEXT *insText)
{
    T_ATB_TEXT	*text;
	int 		textIndex;
	USHORT		character;

	TRACE_FUNCTION("ATB_edit_InsertString()");

    if (!editor)													// Make sure editor exists
        return ED_BAD_HANDLE;
	
	if (insText==NULL || insText->len==0)
		return ED_OK;												/* No string to insert - trivial operation. */

	if (ATB_edit_Mode(editor, ED_MODE_READONLY)	)					/* Don't insert in read-only mode*/
		return ED_ERROR;
		
	text = &editor->attr->text;

	if ((text->len+insText->len) >= editor->attr->size)
		return ED_ERROR; 											/* String too long */ 

	/* Move text up by the length of insText */

	ATB_string_MoveRight(text, editor->cursor.pos, insText->len, editor->attr->size); 
	
	/* Copy string into buffer */
	
	for (textIndex=0; textIndex<insText->len; textIndex++)
	{
		character = ATB_string_GetChar(insText, textIndex);
		ATB_string_SetChar(text, editor->cursor.pos+textIndex, character);
	}

	editor->cursor.pos = editor->cursor.pos+insText->len;
	
	/* Reformat updated text */
	
	ATB_edit_Update(editor, 0);

    return ED_OK;
   }


/*******************************************************************************

 $Function:		ATB_edit_GetCursorChar

 $Description:	Return the character at a position offset from the current cursor
				position by the value supplied.
 
 $Returns:		The character, or UNICODE_EOLN if goes beyond bounds of string.

 $Arguments:	editor		- The editor data
 				offset		- The offset from the current cursor position from which
 								to get the character

*******************************************************************************/

USHORT ATB_edit_GetCursorChar(T_ED_DATA *editor, int offset)
{
	USHORT	textIndex;
	USHORT character;

	TRACE_FUNCTION("ATB_edit_GetCursorChar");
        
	textIndex = editor->cursor.pos+offset;

	if (textIndex<0 || textIndex > editor->attr->text.len)
		character = UNICODE_EOLN;
	else
		character = ATB_string_GetChar(&editor->attr->text, textIndex);

	return character;
}


/*******************************************************************************

 $Function:		ATB_edit_CapitaliseWord

 $Description:	Returns TRUE if next word after cursor ought to be capitalised

 $Returns:		None.

 $Arguments:	editor	- The editor data

*******************************************************************************/

BOOL ATB_edit_CapitaliseWord(T_ED_DATA *editor)
{
	USHORT LastChar;
	USHORT CharBefore;

	/* First check to see if first word is to be capitalised */
	
	if (editor->textcase==ED_CASE_CAPS)
		return TRUE;

	/* If not, look at preceding characters */
	
	LastChar = ATB_edit_GetCursorChar(editor, -1);
	CharBefore = ATB_edit_GetCursorChar(editor, -2);

	if (LastChar==UNICODE_FULLSTOP || LastChar==UNICODE_EXCLAMATION
		|| LastChar==UNICODE_QUESTION || LastChar==UNICODE_EOLN)
		return TRUE;
		
	if (LastChar==UNICODE_SPACE)
		if(CharBefore==UNICODE_FULLSTOP || CharBefore==UNICODE_EXCLAMATION || CharBefore==UNICODE_QUESTION)
			return TRUE;

	return FALSE;
}

/*******************************************************************************

 $Function:		ATB_edit_FindCapital

 $Description:	returns the code of the input char converted to a capital. If char has no 
 				upper case equivalent returns original char.
 				Added for issue 1508
 
 $Returns:		UBYTE

 $Arguments:	char
 
*******************************************************************************/
	
USHORT ATB_edit_FindCapital(USHORT small_char)
{	char ascii_code= ATB_char_Ascii(small_char);	
		

		/*if "normal" character*/
		if (ascii_code>96 && ascii_code< 123)
			return (ATB_char_Unicode(ascii_code - 0x20));
		
		switch (ascii_code)
		{
			case (130): return ATB_char_Unicode(154);break;/*U with umlaut*/
			case (132): return ATB_char_Unicode(142);break;/*A with umlaut*/
			case (148): return ATB_char_Unicode(153);break;/*O with umlaut*/
			default: return ATB_char_Unicode(ascii_code);
		}

}
/*******************************************************************************

 $Function:		ATB_edit_HiddenInit

 $Description:	Initialize editor for hidden mode.

 $Returns:    	None.

 $Arguments:  	editor	- The editor data

*******************************************************************************/

ED_RES ATB_edit_HiddenInit(T_ED_DATA *editor)
{
	USHORT  len = editor->attr->text.len;

	TRACE_FUNCTION("ATB_edit_HiddenInit()");

	if (!editor)
        return ED_BAD_HANDLE;            			// element does not exist
    if (editor->hiddenText)
    	return ED_ERROR;
    	
	/* get memory for the temporary buffer */
	editor->hiddenText = (T_ATB_TEXT *) ATB_mem_Alloc(sizeof(T_ATB_TEXT));
	editor->hiddenText->len = 0;
	editor->hiddenText->data = (UBYTE *)ATB_mem_Alloc(editor->attr->size*ATB_string_Size(&editor->attr->text));	

	/* copy text to the temporary buffer */
	ATB_string_Copy(editor->hiddenText, &editor->attr->text);

	/* overwrite the string in the editor buffer with stars */
    memset(editor->attr->text.data,'\0',editor->attr->size*ATB_string_Size(&editor->attr->text));        /* Clear buffer */
	editor->attr->text.len = 0;
	ATB_edit_Reset(editor);										/* Send cursor to start */

	while (editor->attr->text.len < len)
		ATB_edit_AsciiChar(editor,'*',FALSE);
	
 	return ED_OK;
}


/*******************************************************************************

 $Function:		ATB_edit_HiddenExit

 $Description:	Deinitialize editor for hidden mode.

 $Returns:    	None.

 $Arguments:  	editor	- The editor data

*******************************************************************************/

ED_RES ATB_edit_HiddenExit(T_ED_DATA *editor)
{
	TRACE_FUNCTION("ATB_edit_HiddenExit()");
	
	if (!editor)
        return ED_BAD_HANDLE;            			// element does not exist
    if (!editor->hiddenText)
    	return ED_ERROR;
    	
	/* For hidden mode, copy the hidden text into the buffer & free memory */	
    ATB_string_Copy(&editor->attr->text, editor->hiddenText);
    ATB_mem_Free ((void *)editor->hiddenText->data, editor->attr->size*ATB_string_Size(editor->hiddenText));
    ATB_mem_Free ((void *)editor->hiddenText, sizeof(T_ATB_TEXT));
    editor->hiddenText = NULL;

    return;
}


/*******************************************************************************

 $Function:		ATB_edit_Mode

 $Description:	Returns TRUE if the appropriate bits are set in the editor mode

 $Returns:    	None.

 $Arguments:  	editor	- The editor data
 				mode	- The mode bits to check

*******************************************************************************/

void ATB_edit_SetAttr(T_ED_DATA *editor, T_ATB_WIN_SIZE *win_size, ULONG colour, UBYTE font, USHORT mode, USHORT cursor, T_ATB_TEXT *text, USHORT size)
{
	memcpy(&editor->attr->win_size, win_size, sizeof(T_ATB_WIN_SIZE));
	editor->attr->colour = colour;
	edito