atbeditor.c

GSM手机设计软件代码

    	/* Quit editor */
    	
        case ctrlEscape:                  							             
            return ED_DONE;
        	break;

        /* Cursor movements*/
        
        case ctrlLeft:
        case ctrlRight:
        case ctrlUp:
        case ctrlDown:
        case ctrlTop:
        case ctrlBottom:
        	ATB_edit_MoveCursor(editor, character, update);
			break;

        /* Backspace */ 
        
        case ctrlBack:
        	ATB_edit_DeleteLeft(editor);
        	if (update)
			{
			  	ATB_edit_Update(editor, 0);
			}
       		break;

		/* Delete character under cursor */
		
        case ctrlDel:
			ATB_edit_DeleteRight(editor);
			if (update)
			{
			  	ATB_edit_Update(editor, 0);
			}
			break;

		/* CR/LF */

        case ctrlEnter:
            character = UNICODE_LINEFEED;
            /* SPR#1983 - SH - Insert into normal buffer */
            if (ATB_edit_Insert(editor, &editor->attr->text, character))
            {
            	ATB_edit_MoveCursor(editor,ctrlRight,update);
            }
			break;
        
		/* Normal character */ 
            
        default:
	        /* SPR#1983 - SH - Insert into normal buffer */
            if (ATB_edit_Insert(editor, &editor->attr->text, character))
            {
				/* Character inserted OK.  Move cursor to right if we're not in multitap */
	            if (!editor->multitap)
	            {
		            ATB_edit_MoveCursor(editor,ctrlRight,FALSE);
		        }

	        	if (update)
				{
				  	ATB_edit_Update(editor, 0);
				}
			}
			break;
	}        

	/* SPR#1983 - SH - In caps mode, any keypress switches to lower case */
	
	if (!editor->multitap && editor->textcase==ED_CASE_CAPS)
		editor->textcase = ED_CASE_LOWER;
	
    return ED_OK;
}


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

 $Function:		ATB_edit_AsciiChar

 $Description:	Insert an ascii character into the editor text, or execute a control code
 
 $Returns:		ED_OK			- OK

 $Arguments:	editor		- The editor data
 				character	- The ascii character
 				update		- TRUE if word wrap is to be carried out after insertion

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

ED_RES ATB_edit_AsciiChar (T_ED_DATA *editor, char character, UBYTE update)
{
	USHORT unicodeChar;
	
	if (character<ctrlMax)
		unicodeChar = (USHORT)character;
	else
		unicodeChar = ATB_char_Unicode(character);
		
	return ATB_edit_Char(editor, unicodeChar, update);
}


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

 $Function:		ATB_edit_Insert

 $Description:	Insert a character into the editor text
 				SPR#1983 - SH - Added 'text' parameter.
 
 $Returns:		TRUE if character was inserted

 $Arguments:	editor		- The editor data
 				text		- The text string (normal or hidden buffer)
 				character	- The character - in unicode representation

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

static int ATB_edit_Insert (T_ED_DATA *editor, T_ATB_TEXT *text, USHORT character)
{
	int result = FALSE;
	
	TRACE_FUNCTION("ATB_edit_Insert()");

    if (!ATB_edit_Mode(editor, ED_MODE_READONLY))				// Can't insert into read only mode
    {
	    if (ATB_edit_Mode(editor, ED_MODE_OVERWRITE))									
	    {
	    	if (editor->cursor.pos < (editor->attr->size-1))	/* Make sure character will fit */
	    	{
	    		result = TRUE;									/* We can write the cahracter */
	    		
		    	/* If overwriting end of line, we need to increment length of string */
		    	if (ATB_string_GetChar(text, editor->cursor.pos)==UNICODE_EOLN)
		    	{
		    		
	    			/* Ensure string ends with end of line character */
	    			ATB_string_SetChar(text, editor->cursor.pos+1, UNICODE_EOLN);
	    			text->len++;
	    		}
		    }
	    }
	   	else /* For insert mode, check if we have space */
	    {
	        result = ATB_string_MoveRight(text, editor->cursor.pos, 1, editor->attr->size);	// move rest of text right to leave space
	    }

        if (result)
	    {
	    	ATB_string_SetChar(text, editor->cursor.pos, character);	// Insert the character
	    }
    }
    else
    {
    	result = FALSE;
    }
    
    return result;
}


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

 $Function:		ATB_edit_MultiTap 

 $Description:	Displays the specified character over the cursor

 $Returns:		None.

 $Arguments:	editor		- The editor data
 				character	- The character to display
 				multitap	- TRUE if multi-tap is currently in progress
 
*******************************************************************************/

ED_RES ATB_edit_MultiTap(T_ED_DATA *editor, USHORT character, BOOL multitap)
{
	UBYTE oldmultitap;
	ED_RES result = ED_OK;
	
	TRACE_FUNCTION("ATB_edit_MultiTap()");

	if (!editor)
        return ED_BAD_HANDLE;            			// element does not exist
        
	oldmultitap = editor->multitap;
	editor->multitap = multitap;
	
	/* If we were previously in multitap, and in insert mode, delete character under cursor.
	 * SPR#1983 - SH - Since this deletes current character in both visible and
	 * hidden buffer, do this before inserting character to either buffer. */
	 
	if (oldmultitap && !ATB_edit_Mode(editor, ED_MODE_OVERWRITE))
	{
		ATB_edit_DeleteRight(editor);
	}
	
	/* Hidden mode */

	if (ATB_edit_Mode(editor, ED_MODE_HIDDEN))							/* In hidden mode... */
    {
    	/* SPR#1983 - SH - Now use ATB_edit_Insert */
	    ATB_edit_Insert(editor, editor->hiddenText, character);
	    
    	if (!multitap)													/* n multi-tap, show character...*/
    		character = UNICODE_STAR;									/* ...otherwise show star */
    }

	result = ATB_edit_Char(editor,character,FALSE);

	ATB_edit_Update(editor, 0);
	
    return result;
}


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

 $Function:		ATB_edit_AsciiMultiTap 

 $Description:	Displays the specified ascii character over the cursor

 $Returns:		None.

 $Arguments:	editor		- The editor data
 				character	- The ascii character to display
 				multitap	- TRUE if multi-tap is currently in progress
 
*******************************************************************************/

ED_RES ATB_edit_AsciiMultiTap(T_ED_DATA *editor, char character, BOOL multitap)
{
	USHORT unicodeChar;
	
	if (character<ctrlMax)
		unicodeChar = (USHORT)character;
	else
		unicodeChar = ATB_char_Unicode(character);
		
	return ATB_edit_MultiTap(editor, unicodeChar, multitap);
}


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

 $Function:		ATB_edit_FindNext 

 $Description:	For formatted input, adds a character to the input buffer then finds
 				the next non-fixed character space for the cursor to occupy

 $Returns:		None

 $Arguments:	editor		- The editor data
 				character	- The character (or code) to insert
 
*******************************************************************************/

static void ATB_edit_FindNext(T_ED_DATA *editor)
{
    char			*format 		= editor->attr->FormatString;
   	char			formatchar;
	UBYTE			inField			= ENTRY_NOT_IN_FIELD;

	TRACE_FUNCTION("ATB_edit_FindNext()");

	/* Check for delimited field */
	
	if (editor->formatIndex>0)
	{
		formatchar = format[editor->formatIndex-1];
		if ((formatchar>'0' && formatchar<='9') || formatchar=='*')
			inField = ENTRY_IN_FIELD;
	}
	
	formatchar = format[editor->formatIndex];
	if ((formatchar>'0' && formatchar<='9') || formatchar=='*')
		inField = ENTRY_ENTERING_FIELD;
	
	/* Check for cursor right at end of string - don't allow */
	
	if (editor->cursor.pos>=editor->attr->text.len
		&& editor->formatIndex>-1 && inField==ENTRY_NOT_IN_FIELD)
	{
		return;
	}

	/* Move cursor position right */

	editor->cursor.pos = ATB_string_IndexMove(&editor->attr->text, editor->cursor.pos, 1);

	/* Check for start of fixed input field */

	if (inField==ENTRY_ENTERING_FIELD)
	{
		editor->formatIndex++;														// Get us into the field...
		editor->fieldIndex = 0;														// ...and reset the field index
		formatchar = format[editor->formatIndex];
		if (formatchar=='M')
			editor->textcase = ED_CASE_UPPER;
		if (formatchar=='m')
			editor->textcase = ED_CASE_LOWER;
		inField = ENTRY_IN_FIELD;
	}

	/* Check whether we're in a fixed input field, e.g. "4N" or "8X" */

	if (inField==ENTRY_IN_FIELD)															// So we don't look back beyond start of string
	{
		formatchar = format[editor->formatIndex-1];
		editor->fieldIndex++;													// Increment the position in the field
		if (editor->fieldIndex==(int)(formatchar-'0'))								// If we've entered the number of characters specified (note- will never happen for the '*' !)
		{
			editor->formatIndex++;												// point to NULL at end of string (no more input)
		}
		return;
	}

	/* If not, just look at next format character as usual */
	
	editor->formatIndex++;															// Point to next character
	
	while (editor->formatIndex<strlen(format) && format[editor->formatIndex]=='\\')		// Fixed characters encountered
	{
		editor->cursor.pos = ATB_string_IndexMove(&editor->attr->text, editor->cursor.pos, 1);				// Skip over them
		editor->formatIndex+=2;
	}

	if (editor->formatIndex>(strlen(format)))											// Don't look beyond end of string
		editor->formatIndex = strlen(format);

	return;
}


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

 $Function:  ATB_edit_FindPrev 

 $Description:	For formatted input, finds the previous non-fixed character and
 				moves the cursor there if possible

 $Returns:		FINDPREV_NO_CHANGE if the cursor position is not changed (nowhere to go)
 				FINDPREV_PREV_FOUND if the previous character has been found
 				FINDPREV_FIRST_CHAR if the cursor was over the first non-fixed character
 				FINDPREV_LAST_CHAR if the cursor is at the last non-fixed character

 $Arguments:	editor	- The editor data
 
*******************************************************************************/

static USHORT ATB_edit_FindPrev(T_ED_DATA *editor)
{
    char			*format 		= editor->attr->FormatString;
   	char			formatchar;
   	SHORT			editIndex;

	TRACE_FUNCTION("ATB_edit_FindPrev()");

	/* Check if cursor is at start of string, return 2 */
	
	if (editor->cursor.pos == 0)
	{
		return FINDPREV_FIRST_CHAR;
	}
	
	/* Check whether we're in a fixed input field, e.g. "4N" or "8X" */
			
	if (editor->formatIndex>0)															// So we don't look back beyond start of string
	{
		formatchar = format[editor->formatIndex-1];
		if ((formatchar>'0' && formatchar<='9') || formatchar=='*')				// If it's a number between 1 and 9, or a *
		{
			if (editor->cursor.pos > 0)
				editor->cursor.pos--;
				
			if (editor->cursor.pos < editor->attr->size-1)									// (Don't decrement if at last char in string)
				editor->fieldIndex--;												// Decrement the position in the field
			
			if (editor->fieldIndex==0)													// If we've reached the beginning of the field
				editor->formatIndex--;												// Get out of the field
						
			if (editor->cursor.pos==editor->attr->text.len-1)		// Special case if last character - tell editor to shorten the string
				return FINDPREV_LAST_CHAR;
			
			return FINDPREV_PREV_FOUND;											// then we're done
		}
	}

	/* If not (or if we've just come out of one) just look at next format character as usual */

	editIndex	= editor->formatIndex-1;												// Make copy of format position, starting off to left
	 	
	while (editIndex>0)
	{
		if (format[editIndex-1]=='\\')										// If there's a fixed char
			editIndex -=2;														// Look back a further 2 characters
		else																	// If there's a non-fixed character
			break;																// then exit loop
   }

	if (editIndex==-1)															// Go back from 1st character in editor
	{
		return FINDPREV_FIRST_CHAR;
	}
	
	formatchar = format[editIndex-1];											
	if ((formatchar>'0' && formatchar<='9') || formatchar=='*')
		editor->fieldIndex--;
		
	if (editIndex>-1)															// Provided there is somewhere to go....
	{
		while(editor->formatIndex>editIndex)
		{
			if (editor->cursor.pos > 0)
			{
				editor->cursor.pos--;					// move cursor there
				editor->formatIndex--;
			}
			if (format[editor->formatIndex]=='\\')
				editor->formatIndex--;
		}
		return FINDPREV_PREV_FOUND;												// Found new position
	}
	
	return FINDPREV_NO_CHANGE;													// Position unchanged