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Diffstat (limited to 'qemu/roms/ipxe/src/hci/mucurses/windows.c')
-rw-r--r--qemu/roms/ipxe/src/hci/mucurses/windows.c158
1 files changed, 158 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/hci/mucurses/windows.c b/qemu/roms/ipxe/src/hci/mucurses/windows.c
new file mode 100644
index 000000000..63d0af08c
--- /dev/null
+++ b/qemu/roms/ipxe/src/hci/mucurses/windows.c
@@ -0,0 +1,158 @@
+#include <curses.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include "mucurses.h"
+
+/** @file
+ *
+ * MuCurses windows instance functions
+ *
+ */
+
+/**
+ * Delete a window
+ *
+ * @v *win pointer to window being deleted
+ * @ret rc return status code
+ */
+int delwin ( WINDOW *win ) {
+ if ( win == NULL )
+ return ERR;
+
+ /* I think we should blank the region covered by the window -
+ ncurses doesn't do this, but they have a buffer, so they
+ may just be deleting from an offscreen context whereas we
+ are guaranteed to be deleting something onscreen */
+ wmove( win, 0, 0 );
+ chtype killch = (chtype)' ';
+ do {
+ _wputch( win, killch, WRAP );
+ } while ( win->curs_x + win->curs_y );
+
+ free( win );
+
+ wmove ( stdscr, 0, 0 );
+
+ return OK;
+}
+
+/**
+ * Create a new derived window
+ *
+ * @v parent parent window
+ * @v nlines window height
+ * @v ncols window width
+ * @v begin_y window y origin (relative to parent)
+ * @v begin_x window x origin (relative to parent)
+ * @ret ptr return pointer to child window
+ */
+WINDOW *derwin ( WINDOW *parent, int nlines, int ncols,
+ int begin_y, int begin_x ) {
+ WINDOW *child;
+ if ( parent == NULL )
+ return NULL;
+ if ( ( child = malloc( sizeof( WINDOW ) ) ) == NULL )
+ return NULL;
+ if ( ( (unsigned)ncols > parent->width ) ||
+ ( (unsigned)nlines > parent->height ) )
+ return NULL;
+ child->ori_y = parent->ori_y + begin_y;
+ child->ori_x = parent->ori_x + begin_x;
+ child->height = nlines;
+ child->width = ncols;
+ child->parent = parent;
+ child->scr = parent->scr;
+ return child;
+}
+
+/**
+ * Create a duplicate of the specified window
+ *
+ * @v orig original window
+ * @ret ptr pointer to duplicate window
+ */
+WINDOW *dupwin ( WINDOW *orig ) {
+ WINDOW *copy;
+ if ( orig == NULL )
+ return NULL;
+ if ( ( copy = malloc( sizeof( WINDOW ) ) ) == NULL )
+ return NULL;
+ copy->scr = orig->scr;
+ copy->attrs = orig->attrs;
+ copy->ori_y = orig->ori_y;
+ copy->ori_x = orig->ori_x;
+ copy->curs_y = orig->curs_y;
+ copy->curs_x = orig->curs_x;
+ copy->height = orig->height;
+ copy->width = orig->width;
+ return copy;
+}
+
+/**
+ * Move window origin to specified coordinates
+ *
+ * @v *win window to move
+ * @v y Y position
+ * @v x X position
+ * @ret rc return status code
+ */
+int mvwin ( WINDOW *win, int y, int x ) {
+ if ( win == NULL )
+ return ERR;
+ if ( ( ( (unsigned)y + win->height ) > LINES ) ||
+ ( ( (unsigned)x + win->width ) > COLS ) )
+ return ERR;
+
+ win->ori_y = y;
+ win->ori_x = x;
+
+ return OK;
+}
+
+/**
+ * Create new WINDOW
+ *
+ * @v nlines number of lines
+ * @v ncols number of columns
+ * @v begin_y column origin
+ * @v begin_x line origin
+ * @ret *win return pointer to new window
+ */
+WINDOW *newwin ( int nlines, int ncols, int begin_y, int begin_x ) {
+ WINDOW *win;
+ if ( ( win = malloc( sizeof(WINDOW) ) ) == NULL )
+ return NULL;
+ if ( ( (unsigned)( begin_y + nlines ) > stdscr->height ) &&
+ ( (unsigned)( begin_x + ncols ) > stdscr->width ) )
+ return NULL;
+ win->ori_y = begin_y;
+ win->ori_x = begin_x;
+ win->height = nlines;
+ win->width = ncols;
+ win->scr = stdscr->scr;
+ win->parent = stdscr;
+ return win;
+}
+
+/**
+ * Create a new sub-window
+ *
+ * @v orig parent window
+ * @v nlines window height
+ * @v ncols window width
+ * @v begin_y window y origin (absolute)
+ * @v begin_x window x origin (absolute)
+ * @ret ptr return pointer to child window
+ */
+WINDOW *subwin ( WINDOW *parent, int nlines, int ncols,
+ int begin_y, int begin_x ) {
+ WINDOW *child;
+ if ( parent == NULL )
+ return NULL;
+ if ( ( child = malloc( sizeof( WINDOW ) ) ) == NULL )
+ return NULL;
+ child = newwin( nlines, ncols, begin_y, begin_x );
+ child->parent = parent;
+ child->scr = parent->scr;
+ return child;
+}