//
// Wait for keyboard input, when key is pressed
// return the key.
//
int WaitForKey( void )
{
int c;
while( ( c = getchar()) == EOF)
idle(); // idle for powersaving
keybeep(); // make the beeping sound
return c;
}
uint GetString( uint FieldRow, uint FieldCol, uint length, uint displen,
uint *cursor, uchar *pInbuf, uint InFlags, POPUPSHELL *pShell)
{
/***************************************************************************/
/* Diagram to explain local variables. */
/* */
/* 0 ... 10 ... 40 ... 200 */
/* */
/* +-------------------------------+ */
/* +----------| |---------------------+ */
/* | | Portion of the string shown | | */
/* | | in the screen. | | */
/* +----------| |---------------------+ */
/* +-------------------------------+ */
/* |<---- Display Length --------->| */
/* */
/* |<------------ length (length of the entire buffer) ------------>| */
/* */
/* In the above example: */
/* */
/* length ===> 200 */
/* DisplayLength ===> 30 */
/* DisplayOffset ===> 10 */
/* */
/***************************************************************************/
uint key;
int n, i;
ushort rc;
int voff;
uint IsInsertMode = 0, scratch, BufLen;
uint DisplayOffset;
uint CursorRow, CursorCol;
int FirstKeyEntry = TRUE; /*910*/
uint flags = InFlags; /*910*/
int state = MOU_STATE_UP; /* assume this! */ /*910*/
int NextState = 0; /*910*/
BUTTON *pButtonDown = NULL; /*910*/
/***************************************************************************/
/* */
/* flags - Flags which indicate type of the field. */
/* (AUTOEXIT / HEXONLY / BINONLY) */
/***************************************************************************/
if(pShell)
flags = pShell->Flags; /*910*/
/***************************************************************************/
/* - Set keyboard flush buffer flag to indiacte not to flush the keyboard */
/* buffer while we are in getstring. */
/* - Initialise the local variables. */
/***************************************************************************/
SetFlushBufferFlag( NOFLUSHNOW ); /*820*/
FieldDisplayLength = displen;
DisplayOffset = 0;
CursorRow = FieldRow;
CursorCol = ( *cursor > displen ) ? FieldCol : FieldCol + *cursor;
#ifdef MSH
if(iview) {
CursorRow+=RowStart;
FieldRow+=RowStart;
CursorCol+=ColStart;
FieldCol+=ColStart;
}
#endif
/***************************************************************************/
/* Allocate memory for the local buffer. */
/***************************************************************************/
Buffer = (uchar *)Talloc( (length+1) * sizeof( uchar ) );
memset( Buffer, '\0', length+1 );
if(!iview) {
/***************************************************************************/
/* Adjust display length if the length specified by the caller goes out of */
/* the screen. */
/***************************************************************************/
if( FieldCol + FieldDisplayLength > VideoCols )
FieldDisplayLength = VideoCols - FieldCol;
/***************************************************************************/
/* Check to see if the field would over lap some other window, if so adjust*/
/* the display length accordingly. */
/***************************************************************************/
if( FieldDisplayLength + FieldCol > BoundPtr[FieldRow] )
FieldDisplayLength = BoundPtr[FieldRow] - FieldCol;
}
else
{
#ifdef MSH
if( FieldDisplayLength + FieldCol - ColStart> VideoWidth )
FieldDisplayLength = VideoWidth - FieldCol + ColStart;
#endif
}/* End if*/
/***************************************************************************/
/* RightScrollOffset is the amount of scrolling to be done when the user */
/* goes out of the display length. It is 2/3 rds of the display length. */
/***************************************************************************/
RightScrollOffset = (FieldDisplayLength * 2)/3;
LeftScrollOffset = FieldDisplayLength - RightScrollOffset;
FieldBase = (uchar *)Sel2Flat( HiFlat(VideoPtr) ) +
( voff = 2*(FieldRow*VideoCols + FieldCol) );
FieldType = flags;
/***************************************************************************/
/* Depending on the type of the string copy the initial string to the local*/
/* buffer. Display the string. */
/***************************************************************************/
if( (FieldType & HEXONLY) || (FieldType & BINONLY) )
{
for( i = 0; i < length; i++ )
Buffer[i] = FieldBase[i*2];
}
else
strcpy( Buffer, pInbuf );
DisplayField( DisplayOffset );
VioShowBuf( (ushort)voff,(ushort) (2*FieldDisplayLength), 0 );
VioSetCurType( &NormalCursor, 0 );
for(;;)
{
VioSetCurPos( (ushort)CursorRow, (ushort)CursorCol, 0 );
Event = GetEvent( SEM_INDEFINITE_WAIT );
switch( Event->Type )
{
case TYPE_MOUSE_EVENT: /*910*/
{ /*910*/
/******************************************************************910*/
/* Test for mouse event between the string brackets. 910*/
/******************************************************************910*/
if( ( Event->Row == (ushort)FieldRow ) && /*910*/
( Event->Col >= (ushort)FieldCol ) && /*910*/
( Event->Col <= ((ushort)FieldCol+(ushort)FieldDisplayLength-1))
) /*910*/
{ /*910*/
/*****************************************************************910*/
/* - If it's a button down event then set the cursor at the 910*/
/* end of the string or on the character that was clicked on. 910*/
/*****************************************************************910*/
if( Event->Value == EVENT_BUTTON_1_DOWN) /*910*/
{ /*910*/
BufLen = strlen( Buffer ); /*910*/
if( (DisplayOffset + (Event->Col - FieldCol)) > BufLen ) /*910*/
{ /*910*/
keybeep(); /*910*/
CursorCol = FieldCol + (BufLen - DisplayOffset); /*910*/
} /*910*/
else /*910*/
CursorCol = (uint)Event->Col; /*910*/
} /*910*/
/*****************************************************************910*/
/* - Ignore events between the brackets that are not button 910*/
/* down events. 910*/
/* - Any mouse event between []s turns off the erasure of a 910*/
/* cursor sensitive prompt. 910*/
/*****************************************************************910*/
FieldType &= ~CLEAR1ST; /*910*/
continue; /*910*/
} /*910*/
/*910*/
/**********************************************************************/
/* - handle strings that are not in the context of a popup. */
/**********************************************************************/
if(pShell == NULL ) /*910*/
{ /*910*/
NextState = GetMouseState( Event ); /*910*/
if( (state == MOU_STATE_UP) && /*910*/
(NextState == MOU_STATE_DOWN) /*910*/
) /*910*/
{ /*910*/
key = LEFTMOUSECLICK; /*910*/
break; /*910*/
} /*910*/
/*910*/
state = NextState; /*910*/
continue; /*910*/
} /*910*/
/******************************************************************910*/
/* - Now, handle mouse events outside the []s within the context 910*/
/* of a popup. 910*/
/* 910*/
/* - Button events are valid on the release event. 910*/
/* 910*/
/* - Transitions from up to down "outside" the <>s and []s 910*/
/* are returned to the caller as a LEFTMOUSECLICK. 910*/
/* 910*/
/* ------------------------ 910*/
/* | | 910*/
/* | ----------- 910*/
/* | <------------| |<---------------- 910*/
/* | | ----------- | 910*/
/* | ---- ---- 910*/
/* | | |--- ---| |--- 910*/
/* | | UP | | BU,BUM BD,BDM | | DN | | 910*/
/* | | |<-- -->| |<-- 910*/
/* | ---- ---- 910*/
/* | | | 910*/
/* | | | 910*/
/* | | ----------- | 910*/
/* | ------------>| |----------------> 910*/
/* | ----------- 910*/
/* | | 910*/
/* | | 910*/
/* | BU - Button up event. | 910*/
/* | BUM - Button up move event. -(1) If BD or BDM event 910*/
/* | BD - Button down event. occurs in a button(<>s), 910*/
/* | BDM - Button down move event. then set pButtonDown 910*/
/* | to point to the BUTTON 910*/
/* | structure. This is 910*/
/* | effectively a "pending" 910*/
/* ----(1) If BU or BUM event button event. If the 910*/
/* && if the event occurs up event occurs within 910*/
/* in the same button as the same <>s, then we've 910*/
/* a "pending" button got ourselves a valid 910*/
/* then we have a button button event. 910*/
/* event. 910*/
/* (2) If BD or BDM do not 910*/
/* occur within a button, 910*/
/* then set pButtonDown=NULL 910*/
/* and go back to the 910*/
/* caller with a 910*/
/* LEFTMOUSECLICK. 910*/
/* 910*/
/******************************************************************910*/
NextState = GetMouseState( Event ); /*910*/
if( (state == MOU_STATE_DOWN) && /*910*/
(NextState == MOU_STATE_UP) && /*910*/
(pButtonDown != NULL) && /*910*/
(pButtonDown == GetButtonPtr(pShell,Event)) /*910*/
) /*910*/
{ /*910*/
key = pButtonDown->Key; /*910*/
break; /*910*/
} /*910*/
/*910*/
if( (state == MOU_STATE_UP) && /*910*/
(NextState == MOU_STATE_DOWN) /*910*/
) /*910*/
{ /*910*/
pButtonDown = GetButtonPtr( pShell,Event); /*910*/
if( pButtonDown == NULL ) /*910*/
{ /*910*/
key = LEFTMOUSECLICK; /*910*/
break; /*910*/
} /*910*/
} /*910*/
/*910*/
state = NextState; /*910*/
continue; /*910*/
}
case TYPE_KBD_EVENT:
{
key = Event->Value;
break;
}
}
if( (FieldType & CLEAR1ST) && (FirstKeyEntry == TRUE) ) /*910*/
FirstKeyEntry = FALSE; /*910*/
switch( key )
{
case F1:
case ESC:
case ENTER:
case UP:
case DOWN:
case A_ENTER:
case MOUSECLICK:
/***********************************************************************/
/* - these keys are specific to the watchpoint dialog. 910*/
/***********************************************************************/
case TYNEXT: /* watchpoint type button. 910*/
case SPNEXT: /* watchpoint scope button. 910*/
case SZNEXT: /* watchpoint size button. 910*/
case STNEXT: /* watchpoint status button. 910*/
{
/*********************************************************************/
/* All the above keys cannot be proccessed by getstring, so return */
/* the key to the caller. */
/*********************************************************************/
rc = RCBREAK;
break;
}
case C_HOME:
{
/*********************************************************************/
/* Control-Home takes you to the start of the string. */
/*********************************************************************/
DisplayOffset = 0;
CursorCol = FieldCol;
rc = RCREDRAW;
break;
}
case C_END:
{
/*********************************************************************/
/* Control-End takes you to the end of the string (to the last char */
/* the user has types in). */
/*********************************************************************/
BufLen = strlen( Buffer );
if( BufLen > FieldDisplayLength )
{
DisplayOffset = BufLen - FieldDisplayLength;
CursorCol = FieldCol + FieldDisplayLength - 1;
}
else
{
DisplayOffset = 0;
CursorCol = FieldCol + BufLen;
}
rc = RCREDRAW;
break;
}
case TAB:
case S_TAB:
{
/*********************************************************************/
/* If the user has keyed in a tab and the field type is AUTOEXIT, */
/* return to the caller. */
/*********************************************************************/
if( FieldType & AUTOEXIT )
rc = RCBREAK;
else
{
keybeep();
rc = 0;
}
break;
}
case LEFT:
{
/*********************************************************************/
/* The user has pressed the left arrow key. */
/* - If the cursor is not in the starting column move the cursor */
/* one column to the left. */
/*********************************************************************/
if( CursorCol > FieldCol )
{
CursorCol--;
rc = 0;
}
else
{
/*******************************************************************/
/* If the cursor is in the starting column, a non zero value in the*/
/* display offset would indicate we have some characters to the */
/* left to be displayed (see diagram above). If you have enough */
/* characters to scroll to LeftScrollOffset amount, do so. If not */
/* scroll to the start of the string. */
/*******************************************************************/
if( DisplayOffset )
{
if( (int)(DisplayOffset - LeftScrollOffset) >= 0 )
{
DisplayOffset -= LeftScrollOffset;
CursorCol += (LeftScrollOffset - 1);
}
else
{
CursorCol += DisplayOffset;
DisplayOffset = 0;
}
rc = RCREDRAW;
}
else
{
if( FieldType & AUTOEXIT )
rc = RCBREAK;
else
{
keybeep();
rc = 0;
}
}
}
break;
}
case RIGHT:
{
/*********************************************************************/
/* The user has pressed the right arrow key. */
/* - If the cursor is not in the ending column of display and not */
/* end of the string, move the cursor one column to the right. */
/*********************************************************************/
BufLen = strlen( Buffer );
if( CursorCol < ( FieldCol + FieldDisplayLength - 1 ) )
{
if( (DisplayOffset + (CursorCol - FieldCol)) < BufLen )
{
CursorCol++;
rc = 0;
}
else
{
keybeep();
rc = 0;
}
}
else
{
/*******************************************************************/
/* If the cursor is at the ending column of display, check to see */
/* if we are within the buffer length. If we have enough space to */
/* scroll by RightScrollOffset amount do so, if not scroll till the*/
/* end of the string. */
/*******************************************************************/
if( DisplayOffset + FieldDisplayLength < BufLen )
{
DisplayOffset += (FieldDisplayLength - RightScrollOffset);
if( (DisplayOffset + (CursorCol - FieldCol)) > BufLen )
CursorCol = FieldCol + (BufLen - DisplayOffset);
else
CursorCol = FieldCol + RightScrollOffset;
rc = RCREDRAW;
}
else
{
/*****************************************************************/
/* If we reached the ending column and the end of the buffer, if */
/* the field type is AUTOEXIT return to the caller. */
/*****************************************************************/
if( FieldType & AUTOEXIT )
rc = RCBREAK;
else
{
keybeep();
rc = 0;
}
}
}
break;
}
case HOME:
{
/*********************************************************************/
/* Home takes to the starting column of the string. */
/*********************************************************************/
CursorCol = FieldCol;
break;
}
case END:
{
/*********************************************************************/
/* End takes you to the ending column of the string. If the string */
/* is not long enough till the ending column of the display, End */
/* takes you to the end of the string. */
/*********************************************************************/
CursorCol = FieldCol + FieldDisplayLength - 1;
scratch = DisplayOffset + ( CursorCol - FieldCol );
BufLen = strlen( Buffer );
if( scratch > BufLen )
CursorCol = FieldCol + (BufLen - DisplayOffset);
break;
}
case INS:
{
/*********************************************************************/
/* Insert key is pressed. This toggles the InsertMode flag. If the */
/* current length of the string is less than the buffer length, */
/* InsertMode could be allowed. Set the cusror type accordingly. */
/*********************************************************************/
if( IsInsertMode )
{
IsInsertMode = 0;
VioSetCurType( &NormalCursor, 0 );
}
else
{
if( length != strlen( Buffer ) )
{
IsInsertMode = 1 - IsInsertMode;
IsInsertMode ? VioSetCurType( &InsertCursor, 0 ) :
VioSetCurType( &NormalCursor, 0 );
}
else /* Display proper error message... */
keybeep();
}
break;
}
case DEL:
{
/*********************************************************************/
/* Delete the current character. The rest of the string is shifted */
/* left. */
/*********************************************************************/
scratch = DisplayOffset + ( CursorCol - FieldCol );
( scratch < strlen( Buffer ) ) ? ShiftLeft( scratch ) :
keybeep();
rc = RCREDRAW;
break;
}
case BACKSPACE:
{
/*********************************************************************/
/* The previous character to the cursor is deleted. By default the */
/* string is shifted left by one character. But if the cursor is on */
/* the starting column then the string is shifted by LeftScrollOffset*/
/* amount. */
/*********************************************************************/
scratch = DisplayOffset + (CursorCol - FieldCol);
if( scratch )
{
ShiftLeft( scratch - 1 );
CursorCol--;
if( CursorCol < FieldCol )
{
if( (int)(DisplayOffset - LeftScrollOffset) >= 0 )
{
DisplayOffset -= LeftScrollOffset;
CursorCol += LeftScrollOffset;
}
else
{
CursorCol += (DisplayOffset + 1);
DisplayOffset = 0;
}
}
}
else
keybeep();
rc = RCREDRAW;
break;
}
default:
{
/*********************************************************************/
/* Any other character key is pressed. Verify the validity of the */
/* character depending on the type of the string (HEX/BIN). */
/*********************************************************************/
key &= 0xFF;
if( key != 0x15 )
if( (key < 0x20) || (key > 0x7E) )
{
rc = RCBREAK;
break;
}
if( FieldType & HEXONLY )
{
if( (key < '0') || (key > '9') )
{
key &= 0xDF;
if( (key < 'A') || (key > 'F') )
{
keybeep();
rc = 0;
break;
}
}
}
if( FieldType & BINONLY )
{
if( (key != '0') && (key != '1') )
{
keybeep();
rc = 0;
break;
}
}
if( FieldType & CLEAR1ST ) /*910*/
{ /*910*/
memset(Buffer,'\0',strlen(Buffer) ); /*910*/
*cursor = 0; /*910*/
CursorCol = (*cursor > displen)?FieldCol : FieldCol + *cursor; /*910*/
} /*910*/
/*********************************************************************/
/* Scratch gives you the exact number of characters so far typed in */
/* by the user. Accept the last character only if scratch is less */
/* than the total length of the string. */
/*********************************************************************/
scratch = DisplayOffset + ( CursorCol - FieldCol );
if( scratch < length )
{
if( IsInsertMode )
{
if( (strlen( Buffer ) + 1) > length )
{
keybeep();
rc = 0;
break; /* reject */
}
else
ShiftRight( scratch );
}
Buffer[scratch] = ( uchar )key;
/*******************************************************************/
/* Adjust the cursor position accordingly so that it stays ahead */
/* of the last character. */
/*******************************************************************/
if( CursorCol >= (FieldCol + FieldDisplayLength) )
{
DisplayOffset += (FieldDisplayLength - RightScrollOffset - 1);
CursorCol = FieldCol + RightScrollOffset + 2;
}
else
CursorCol++;
/*******************************************************************/
/* It the type of the field is AUTOEXIT return to the caller once */
/* the buffer is full. */
/*******************************************************************/
BufLen = strlen( Buffer );
if( (BufLen == length) &&
(FieldType & AUTOEXIT) &&
((CursorCol - FieldCol) == FieldDisplayLength) )
rc = RCREDRAW + RCBREAK + RCDATAXT;
else
rc = RCREDRAW;
break;
}
else
{
keybeep();
rc = 0;
break;
}
}
}
/*************************************************************************/
/* - Turn off the clear field flag after any event. */
/*************************************************************************/
FieldType &= ~CLEAR1ST; /*910*/
if( rc & RCREDRAW )
{
DisplayField( DisplayOffset );
VioShowBuf( (ushort)voff, (ushort)( 2 * FieldDisplayLength ), 0 );
}
if( rc & RCBREAK )
break;
} /* end of for loop to handle keystrks*/
VioSetCurType( &HiddenCursor, 0 );
/*************************************************************************/
/* - Copy the local buffer to the caller supplied buffer. */
/* - Free the local buffer. */
/* - Reset the keyboard buffer flush flag. */
/*************************************************************************/
for( n = 0; n < strlen( Buffer ); n++ )
*pInbuf++ = Buffer[n];
*pInbuf = 0;
*cursor = CursorCol;
Tfree( Buffer );
ResetFlushBufferFlag(); /*820*/
return( (rc & RCDATAXT) ? DATAKEY : key );
}
