Initial revision

1999-12-09 23:15:14 +00:00
commit 2635c3085d
139 changed files with 24298 additions and 0 deletions
@@ -0,0 +1,162 @@
+#include "menu.h"
+
+/////////////////////////////////////////
+//  THIS IS NOT READY YET!
+/////////////////////////////////////////
+
+
+/////////////////////////////////////////////////////////
+// Read menu.h to find out how this works.
+//
+
+
+
+
+// Internal record of all important menu info...
+typedef struct MenuInfo
+{
+  MenuItem *menu;	// User-specified menu information
+  struct MenuInfo *parent;	// NULL if root-level
+  int items;		// number of items in the menu
+  int sel;		// selected item
+} MenuInfo;
+
+
+
+// Main menu function...
+int do_menu(MenuItem *menu, MenuInfo *parent);
+
+
+void FillMenuInfo(MenuInfo *m, MenuItem *menu, MenuInfo *parent);
+
+void DrawMenu(MenuInfo *m);
+void DrawMenuItem(MenuInfo *m, int item);
+
+
+///////////////////////////////////////////////////////////////////
+// User-callable function...
+//
+int menu(MenuItem *menu)
+{
+  int ret;
+
+  CreateArrows();  // Set custom characters for menu use...
+  
+  ret = do_menu(menu, NULL);
+  
+  return ret;
+}
+
+
+
+int do_menu(MenuItem *menu, MenuInfo *parent)
+{
+  int current;
+  int uparrow;
+  int downarrow;
+
+  int key;
+  int err=0;
+  
+
+  while(! err)
+  {
+    // Draw the menu...
+
+    // Wait for input
+
+  }
+  
+}
+
+
+int do_menu(MenuItem *menu, MenuInfo *parent)
+{
+  int i;
+  int items;
+  MenuInfo ThisMenu;
+  int old_sel;
+  int redraw=1;
+  int ret=0;
+  
+  FillMenuInfo(&ThisMenu, menu, parent);
+
+//FIXME:  Get input here...   Move the selection thingy
+
+  DrawMenu(&ThisMenu);
+
+
+  do{
+//FIXME:  Get input here...   Move the selection thingy
+
+    // Figure out which button should be highlighted...
+
+    // And...  if the "execute" button was pressed...
+    if() 
+    {
+      ThisMenu.sel = i;
+    }
+        
+    DrawMenu(&ThisMenu);  
+    redraw = 0;
+    
+    // Dismiss menu?
+    if(  // cancel was pressed...
+	 )
+     ret = GUI_CONT;
+
+    // pop up another menu?
+    if(  // execute was pressed...
+       &&ThisMenu.sel >= 0
+       &&ThisMenu.menu[ThisMenu.sel].child)
+    {
+      i = do_menu(ThisMenu.menu[ThisMenu.sel].child, &ThisMenu);
+      if(i == GUI_OK) ret = GUI_OK;
+    }
+
+    // Or call a function?
+    else if( // execute was pressed...
+            &&ThisMenu.sel >= 0
+            &&ThisMenu.menu[ThisMenu.sel].func)
+    {
+      ret = ThisMenu.menu[ThisMenu.sel].func();
+      //ret = GUI_OK;
+    }
+    
+  } while(! ret);  
+
+  return ret;
+}
+
+
+
+//////////////////////////////////////////////////////////////////////
+// Initializes a menu...
+//
+void FillMenuInfo(MenuInfo *m, MenuItem *menu, MenuInfo * parent)
+{
+  m->menu = menu;
+  m->parent = parent;
+  m->sel = 0;
+  
+}                  
+
+
+void DrawMenu(MenuInfo *m)
+{
+  int i;
+  
+  for(i=0; i<m->items; i++)
+    DrawMenuItem(m, i);
+}
+
+void DrawMenuItem(MenuInfo *m, int item)
+{
+  // Figure out how much to scroll down...
+  // Write each menu item...
+  // Put arrows where needed (next to current item, and up/down arrow)
+  // m->menu[item].text holds the text string...
+}
+
+
+