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-rw-r--r--oldXMenu/AddPane.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/oldXMenu/AddPane.c b/oldXMenu/AddPane.c
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+++ b/oldXMenu/AddPane.c
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+#include "copyright.h"
+
+/* $Header: AddPane.c,v 1.3 87/12/20 12:03:52 rws Exp $ */
+/* Copyright Massachusetts Institute of Technology 1985 */
+
+/*
+ * XMenu: MIT Project Athena, X Window system menu package
+ *
+ * XMenuAddPane - Adds a pane to an XMenu object.
+ *
+ * Author: Tony Della Fera, DEC
+ * August, 1985
+ *
+ */
+
+#include "XMenuInt.h"
+
+int
+XMenuAddPane(display, menu, label, active)
+ Display *display;
+ register XMenu *menu; /* Menu object to be modified. */
+ register char *label; /* Selection label. */
+ int active; /* Make selection active? */
+{
+ register XMPane *pane; /* Newly created pane. */
+ register XMSelect *select; /* Initial selection for the new pane. */
+
+ 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);
+ }
+
+ /*
+ * Calloc the XMPane structure and the initial XMSelect.
+ */
+ pane = (XMPane *)calloc(1, sizeof(XMPane));
+ if (pane == NULL) {
+ _XMErrorCode = XME_CALLOC;
+ return(XM_FAILURE);
+ }
+ 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->p_fnt_info,
+ label,
+ label_length);
+
+ /*
+ * Set up the initial selection.
+ * Values not explicitly set are zeroed by calloc.
+ */
+ select->next = select;
+ select->prev = select;
+ select->type = SL_HEADER;
+ select->serial = -1;
+ select->parent_p = pane;
+
+ /*
+ * Fill the XMPane structure.
+ * X and Y position are set to 0 since a recompute will follow.
+ */
+ pane->type = PANE;
+ pane->active = active;
+ pane->serial = -1;
+ pane->label = label;
+ pane->label_width = label_width;
+ pane->label_length = label_length;
+ pane->s_list = select;
+
+ /*
+ * Insert the pane at the end of the pane list.
+ */
+ insque(pane, menu->p_list->prev);
+
+ /*
+ * Update the pane count.
+ */
+ menu->p_count++;
+
+ /*
+ * Schedule a recompute.
+ */
+ menu->recompute = 1;
+
+ /*
+ * Return the pane number just added.
+ */
+ _XMErrorCode = XME_NO_ERROR;
+ return((menu->p_count - 1));
+}