public ElemUndo( Rectangle sArea,
int[][] clr,
int[][] lyr,
Block[][] blk,
String cmd )
{
int i, j;
name = cmd;
area = new Rectangle( sArea.Location, sArea.Size );
origBlk = new Block[ LoadSave.W ][];
origClr = new int[ LoadSave.W ][];
origLyr = new int[ LoadSave.W ][];
for( i = 0; i < LoadSave.W; i++ )
{
origBlk[ i ] = new Block[ LoadSave.H ];
origClr[ i ] = new int[ LoadSave.H ];
origLyr[ i ] = new int[ LoadSave.H ];
for( j = 0; j < LoadSave.H; j++ )
{
origBlk[ i ][ j ] = blk[ i ][ j ];
origClr[ i ][ j ] = clr[ i ][ j ];
origLyr[ i ][ j ] = lyr[ i ][ j ];
}
}
}
public Rectangle undo( Rectangle sArea,
int[][] clr,
int[][] lyr,
Block[][] blks )
{
Block tmpB;
int tmpC, tmpL, i, j;
Rectangle tmpR = area;
area = sArea; // switch for redo
for( i = 0; i < LoadSave.W; i++ )
{
for( j = 0; j < LoadSave.H; j++ )
{
tmpB = blks[ i ][ j ];
tmpC = clr[ i ][ j ];
tmpL = lyr[ i ][ j ];
blks[ i ][ j ] = origBlk[ i ][ j ];
clr[ i ][ j ] = origClr[ i ][ j ];
lyr[ i ][ j ] = origLyr[ i ][ j ];
origBlk[ i ][ j ] = tmpB; // switch for redo
origClr[ i ][ j ] = tmpC;
origLyr[ i ][ j ] = tmpL;
}
}
return tmpR;
}
private void createCopy()
{
int i, j;
if( resC == null ||
( resC.Length != selC.Length ||
resC[ 0 ].Length != selC[ 0 ].Length ))
{
resB = new Block[ selectArea.Width ][];
resC = new int[ selectArea.Width ][];
GC.Collect();
for( i = 0; i < selectArea.Width; i++ )
{
resB[ i ] = new Block[ selectArea.Height ];
resC[ i ] = new int[ selectArea.Height ];
for( j = 0; j < selectArea.Height; j++ )
{
resC[ i ][ j ] = -65281;
resB[ i ][ j ] = new Block();
}
}
}
}
private void createSelectMover()
{
int i, j;
selB = new Block[ selectArea.Width ][];
selC = new int[ selectArea.Width ][];
GC.Collect();
for( i = 0; i < selectArea.Width; i++ )
{
selB[ i ] = new Block[ selectArea.Height ];
selC[ i ] = new int[ selectArea.Height ];
for( j = 0; j < selectArea.Height; j++ )
{
selC[ i ][ j ] = -65281;
selB[ i ][ j ] = new Block();
}
}
}
