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

#include "copyright.h"

/* Copyright    Massachusetts Institute of Technology    1985	*/

/*
 * XMenu:	MIT Project Athena, X Window system menu package
 *
 * 	XMenuInsertPane - Inserts a pane into an XMenu object in
 *			  a particular position.
 *
 *	Author:		Tony Della Fera, DEC
 *			20-Nov-85
 *
 */

#include <config.h>
#include "XMenuInt.h"

int
XMenuInsertPane(menu, p_num, label, active)
    register XMenu *menu;	/* Menu object to be modified. */
    register int p_num;		/* Pane number of new pane. */
    char *label;		/* Selection label. */
    int active;			/* Make selection active? */
{
    register XMPane *p_ptr;	/* XMPane pointer. */
    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);
    }

    /*
     * Find the pane number one less than the one specified since that
     * is the pane after which the insertion will occur.
     */
    p_ptr = _XMGetPanePtr(menu, (p_num - 1));
    if (p_ptr == NULL) 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.
     */
    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 after the pane with the pane
     * number one less than the desired number for the
     * new pane.
     */
    emacs_insque(pane, p_ptr);

    /*
     * Update the pane count.
     */
    menu->p_count++;

    /*
     * Schedule a recompute.
     */
    menu->recompute = 1;

    /*
     * Return the number of the pane just added.
     */
    _XMErrorCode = XME_NO_ERROR;
    return(p_num);
}

/* arch-tag: ab94d53d-f05b-4273-82d3-f1b01eb9dc9e
   (do not change this comment) */
Commit	Line	Data
e745ede7 DL	1	#include "copyright.h"
e745ede7 DL	2
e745ede7 DL	3	/* Copyright Massachusetts Institute of Technology 1985 */
	4
	5	/*
	6	* XMenu: MIT Project Athena, X Window system menu package
	7	*
	8	* XMenuInsertPane - Inserts a pane into an XMenu object in
	9	* a particular position.
	10	*
	11	* Author: Tony Della Fera, DEC
	12	* 20-Nov-85
	13	*
	14	*/
	15
	16	#include <config.h>
	17	#include "XMenuInt.h"
	18
	19	int
	20	XMenuInsertPane(menu, p_num, label, active)
	21	register XMenu menu; / Menu object to be modified. */
	22	register int p_num; /* Pane number of new pane. */
	23	char label; / Selection label. */
	24	int active; /* Make selection active? */
	25	{
	26	register XMPane p_ptr; / XMPane pointer. */
	27	register XMPane pane; / Newly created pane. */
	28	register XMSelect select; / Initial selection for the new pane. */
177c0ea7	29
e745ede7 DL	30	int label_length; /* Label length in characters. */
	31	int label_width; /* Label width in pixels. */
	32
	33	/*
	34	* Check for NULL pointers!
	35	*/
	36	if (label == NULL) {
	37	_XMErrorCode = XME_ARG_BOUNDS;
	38	return(XM_FAILURE);
	39	}
	40
	41	/*
	42	* Find the pane number one less than the one specified since that
	43	* is the pane after which the insertion will occur.
	44	*/
	45	p_ptr = _XMGetPanePtr(menu, (p_num - 1));
	46	if (p_ptr == NULL) return(XM_FAILURE);
	47
	48	/*
	49	* Calloc the XMPane structure and the initial XMSelect.
	50	*/
	51	pane = (XMPane *)calloc(1, sizeof(XMPane));
	52	if (pane == NULL) {
	53	_XMErrorCode = XME_CALLOC;
	54	return(XM_FAILURE);
	55	}
	56	select = (XMSelect *)calloc(1, sizeof(XMSelect));
	57	if (select == NULL) {
	58	_XMErrorCode = XME_CALLOC;
	59	return(XM_FAILURE);
	60	}
	61
	62	/*
	63	* Determine label size.
	64	*/
	65	label_length = strlen(label);
	66	label_width = XTextWidth(menu->p_fnt_info, label, label_length);
	67
	68	/*
	69	* Set up the initial selection.
	70	* Values not explicitly set are zeroed by calloc.
	71	*/
	72	select->next = select;
	73	select->prev = select;
	74	select->type = SL_HEADER;
	75	select->serial = -1;
	76	select->parent_p = pane;
	77
	78	/*
	79	* Fill the XMPane structure.
	80	*/
	81	pane->type = PANE;
	82	pane->active = active;
	83	pane->serial = -1;
	84	pane->label = label;
	85	pane->label_width = label_width;
	86	pane->label_length = label_length;
	87	pane->s_list = select;
	88
	89	/*
	90	* Insert the pane after the pane with the pane
	91	* number one less than the desired number for the
	92	* new pane.
	93	*/
94	emacs_insque(pane, p_ptr);
95
96	/*
177c0ea7	97	* Update the pane count.
e745ede7 DL	98	*/
	99	menu->p_count++;
	100
	101	/*
	102	* Schedule a recompute.
	103	*/
	104	menu->recompute = 1;
	105
	106	/*
	107	* Return the number of the pane just added.
	108	*/
	109	_XMErrorCode = XME_NO_ERROR;
	110	return(p_num);
	111	}
6b61353c KH	112
	113	/* arch-tag: ab94d53d-f05b-4273-82d3-f1b01eb9dc9e
	114	(do not change this comment) */