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[bpt/emacs.git] / oldXMenu / InsSel.c

diff --git a/oldXMenu/InsSel.c b/oldXMenu/InsSel.c
new file mode 100644 (file)
index 0000000..200f575
--- /dev/null
+++ b/oldXMenu/InsSel.c
@@ -0,0 +1,116 @@
+#include "copyright.h"
+
+/* $Header: /u/src/emacs/19.0/oldXMenu/RCS/InsSel.c,v 1.1 1992/04/11 22:10:19 jimb Exp $ */
+/* Copyright    Massachusetts Institute of Technology    1985  */
+
+/*
+ * XMenu:      MIT Project Athena, X Window system menu package
+ *
+ *     XMenuInsertSelection - Inserts a selection into an XMenu object
+ *
+ *     Author:         Tony Della Fera, DEC
+ *                     20-Nov-85
+ *
+ */
+
+#include <config.h>
+#include "XMenuInt.h"
+
+int
+XMenuInsertSelection(menu, p_num, s_num, data, label, active)
+    register XMenu *menu;      /* Menu object to be modified. */
+    register int p_num;                /* Pane number to be modified. */
+    register int s_num;                /* Selection number of new selection. */
+    char *data;                        /* Data value. */
+    char *label;               /* Selection label. */
+    int active;                        /* Make selection active? */
+{
+    register XMPane *p_ptr;    /* XMPane pointer. */
+    register XMSelect *s_ptr;  /* XMSelect pointer. */
+
+    XMSelect *select;          /* Newly created selection. */
+
+    int label_length;          /* Label length in characters. */
+    int label_width;           /* Label width in pixels. */
+    
+    /*
+     * Check for NULL pointers!
+     */
+    if (label == NULL) {
+       _XMErrorCode = XME_ARG_BOUNDS;
+       return(XM_FAILURE);
+    }
+
+    /*
+     * Find the right pane.
+     */
+    p_ptr = _XMGetPanePtr(menu, p_num);
+    if (p_ptr == NULL) return(XM_FAILURE);
+
+    /*
+     * Find the selection number one less than the one specified since that
+     * is the selection after which the insertion will occur.
+     */
+    s_ptr = _XMGetSelectionPtr(p_ptr, (s_num - 1));
+    if (s_ptr == NULL) return(XM_FAILURE);
+
+    /*
+     * Calloc the XMSelect structure.
+     */
+    select = (XMSelect *)calloc(1, sizeof(XMSelect));
+    if (select == NULL) {
+       _XMErrorCode = XME_CALLOC;
+       return(XM_FAILURE);
+    }
+
+    /*
+     * Determine label size.
+     */
+    label_length = strlen(label);
+    label_width = XTextWidth(menu->s_fnt_info, label, label_length);
+
+
+    /*
+     * Fill the XMSelect structure.
+     */
+    if (!strcmp (label, "--") || !strcmp (label, "---"))
+      {
+       select->type = SEPARATOR;
+       select->active = 0;
+      }
+    else
+      {
+       select->type = SELECTION;
+       select->active = active;
+      }
+
+    select->active = active;
+    select->serial = -1;
+    select->label = label;
+    select->label_width = label_width;
+    select->label_length = label_length;
+    select->data = data;
+    select->parent_p = p_ptr;
+
+    /*
+     * Insert the selection after the selection with the selection
+     * number one less than the desired number for the new selection.
+     */
+    emacs_insque(select, s_ptr);
+
+    /*
+     * Update the selection count.
+     */
+    p_ptr->s_count++;
+
+    /*
+     * Schedule a recompute.
+     */
+    menu->recompute = 1;
+
+    /*
+     * Return the selection number just inserted.
+     */
+    _XMErrorCode = XME_NO_ERROR;
+    return(s_num);
+}