Added clear(), some methods protected->public

New public methods:

    void clear(void);
    void clear(Fl_Color val);

old protected methods made public:

    void clear_screen(bool scroll_to_hist=true);      // ESC [ 2 J
    void clear_screen_home(bool scroll_to_hist=true); // ESC [ H ESC [ 2 J
    void cursor_home(void);                           // ESC [ 0 H

test/terminal modified to test these, and added separate tests
for both the API and ANSI code ways to do these ops.

1 files changed, 19 insertions, 0 deletions

diff --git a/src/Fl_Terminal.cxx b/src/Fl_Terminal.cxx
index 75d174750..b9489edae 100644
--- a/src/Fl_Terminal.cxx
+++ b/src/Fl_Terminal.cxx
@@ -1591,6 +1591,25 @@ int Fl_Terminal::xy_to_glob_rowcol(int X, int Y, int &grow, int &gcol) const {
 }
 
 /**
+  Clears the screen to the current textbgcolor(), and homes the cursor.
+  \see clear_screen(), clear_screen_home(), cursor_home()
+*/
+void Fl_Terminal::clear(void) {
+  clear_screen_home();
+}
+
+/**
+  Clears the screen to a specific color \p val and homes the cursor.
+  \see clear_screen(), clear_screen_home(), cursor_home()
+*/
+void Fl_Terminal::clear(Fl_Color val) {
+  Fl_Color save = textbgcolor();
+  textbgcolor(val);
+  clear_screen_home();
+  textbgcolor(save);
+}
+
+/**
   Clear the terminal screen only; does not affect the cursor position.
 
   Also clears the current mouse selection.