ncurses 4.2

[ncurses.git] / form / frm_page.c

diff --git a/form/frm_page.c b/form/frm_page.c
new file mode 100644 (file)
index 0000000..a91460c
--- /dev/null
+++ b/form/frm_page.c
@@ -0,0 +1,100 @@
+/****************************************************************************
+ * Copyright (c) 1998 Free Software Foundation, Inc.                        *
+ *                                                                          *
+ * Permission is hereby granted, free of charge, to any person obtaining a  *
+ * copy of this software and associated documentation files (the            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+/****************************************************************************
+ *   Author: Juergen Pfeifer <Juergen.Pfeifer@T-Online.de> 1995,1997        *
+ ****************************************************************************/
+
+#include "form.priv.h"
+
+MODULE_ID("$Id: frm_page.c,v 1.3 1998/02/11 12:13:44 tom Exp $")
+
+/*---------------------------------------------------------------------------
+|   Facility      :  libnform  
+|   Function      :  int set_form_page(FORM * form,int  page)
+|   
+|   Description   :  Set the page number of the form.
+|
+|   Return Values :  E_OK              - success
+|                    E_BAD_ARGUMENT    - invalid form pointer or page number
+|                    E_BAD_STATE       - called from a hook routine
+|                    E_INVALID_FIELD   - current field can't be left
+|                    E_SYSTEM_ERROR    - system error
++--------------------------------------------------------------------------*/
+int set_form_page(FORM * form, int page)
+{
+  int err = E_OK;
+
+  if ( !form || (page<0) || (page>=form->maxpage) )
+    RETURN(E_BAD_ARGUMENT);
+
+  if (!(form->status & _POSTED))
+    {
+      form->curpage = page;
+      form->current = _nc_First_Active_Field(form);
+  }
+  else
+    {
+      if (form->status & _IN_DRIVER) 
+       err = E_BAD_STATE;
+      else
+       {
+         if (form->curpage != page)
+           {
+             if (!_nc_Internal_Validation(form)) 
+               err = E_INVALID_FIELD;
+             else
+               {
+                 Call_Hook(form,fieldterm);
+                 Call_Hook(form,formterm);
+                 err = _nc_Set_Form_Page(form,page,(FIELD *)0);
+                 Call_Hook(form,forminit);
+                 Call_Hook(form,fieldinit);
+                 _nc_Refresh_Current_Field(form);
+               }
+           }
+       }
+    }
+  RETURN(err);
+}
+
+/*---------------------------------------------------------------------------
+|   Facility      :  libnform  
+|   Function      :  int form_page(const FORM * form)
+|   
+|   Description   :  Return the current page of the form.
+|
+|   Return Values :  >= 0  : current page number
+|                    -1    : invalid form pointer
++--------------------------------------------------------------------------*/
+int form_page(const FORM * form)
+{
+  return Normalize_Form(form)->curpage;
+}
+
+/* frm_page.c ends here */