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Implement scrolling region

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This commit is contained in:
Keith Winstein
2011-01-31 20:11:25 -05:00
parent ed55c4c892
commit ea1f8621f1
4 changed files with 72 additions and 11 deletions
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terminalfunctions.cpp
+20
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@@ -177,8 +177,12 @@ static Function func_CSI_TBC( CSI, "g", CSI_TBC );
static bool *get_DEC_mode( int param, Framebuffer *fb ) {
switch ( param ) {
case 3: /* 80/132 */
/* clear screen */
fb->ds.move_row( 0 );
fb->ds.move_col( 0 );
for ( int y = 0; y < fb->ds.get_height(); y++ ) {
clearline( fb, y, 0, fb->ds.get_width() - 1 );
}
return NULL;
case 6: /* origin */
fb->ds.move_row( 0 );
@@ -212,3 +216,19 @@ void CSI_DECRM( Framebuffer *fb, Dispatcher *dispatch )
static Function func_CSI_DECSM( CSI, "?h", CSI_DECSM );
static Function func_CSI_DECRM( CSI, "?l", CSI_DECRM );
void CSI_DECSTBM( Framebuffer *fb, Dispatcher *dispatch )
{
int top = dispatch->getparam( 0, 1 );
int bottom = dispatch->getparam( 1, fb->ds.get_height() );
fb->ds.set_scrolling_region( top - 1, bottom - 1 );
}
static Function func_CSI_DECSTMB( CSI, "r", CSI_DECSTBM );
void Ctrl_BEL( Framebuffer *fb __attribute((unused)), Dispatcher *dispatch __attribute((unused)) )
{}
static Function func_Ctrl_BEL( CONTROL, "\x07", Ctrl_BEL );