Kernel/VTerm - Replace offset WritePos with Row,Col pair

[tpg/acess2.git] / KernelLand / Kernel / drv / vterm_input.c

diff --git a/KernelLand/Kernel/drv/vterm_input.c b/KernelLand/Kernel/drv/vterm_input.c
index 3e86087..6c25cc8 100644 (file)
--- a/KernelLand/Kernel/drv/vterm_input.c
+++ b/KernelLand/Kernel/drv/vterm_input.c
@@ -101,16 +101,14 @@ void VT_KBCallBack(Uint32 Codepoint)
                case KEYSYM_PGUP:
                        if( term->Flags & VT_FLAG_ALTBUF )
                                return ;
-                       term->ViewPos = MAX( 0, term->ViewPos - term->Width );
+                       term->ViewTopRow = MAX(0, term->ViewTopRow - 1);
                        VT_int_UpdateScreen(term, 1);
                        return;
                case KEYSYM_PGDN:
                        if( term->Flags & VT_FLAG_ALTBUF )
                                return ;
-                       term->ViewPos = MIN(
-                               term->ViewPos + term->Width,
-                               term->Width * term->Height * giVT_Scrollback
-                               );
+                       // Note the lack of giVT_Scrollback+1, view top can't go above size-onescreen
+                       term->ViewTopRow = MIN(term->ViewTopRow + 1, term->Height * giVT_Scrollback);
                        VT_int_UpdateScreen(term, 1);
                        return;
                }