mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-23 07:19:15 +00:00
80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/* Copyright Massachusetts Institute of Technology 1985 */
|
|
|
|
#include "copyright.h"
|
|
|
|
|
|
/*
|
|
* XMenu: MIT Project Athena, X Window system menu package
|
|
*
|
|
* XMenuLocate - Return data necessary to position and locate
|
|
* a menu on the screen.
|
|
*
|
|
* Author: Tony Della Fera, DEC
|
|
* January 11, 1985
|
|
*
|
|
*/
|
|
|
|
#include "XMenuInt.h"
|
|
|
|
int
|
|
XMenuLocate(register Display *display, register XMenu *menu, int p_num, int s_num, int x_pos, int y_pos, int *ul_x, int *ul_y, int *width, int *height)
|
|
/* Previously opened display. */
|
|
/* Menu object being located. */
|
|
/* Active pane number. */
|
|
/* Active selection number. */
|
|
/* X coordinate of mouse active position. */
|
|
/* Y coordinate of mouse active position. */
|
|
/* Returned upper left menu X coordinate. */
|
|
/* Returned upper left menu Y coordinate. */
|
|
/* Returned menu width. */
|
|
/* Returned menu height. */
|
|
{
|
|
register XMPane *p_ptr; /* XMPane pointer. */
|
|
register XMSelect *s_ptr; /* XMSelect pointer. */
|
|
|
|
/*
|
|
* Are the position arguments positive?
|
|
*/
|
|
if ((x_pos <= 0) || (y_pos <= 0)) {
|
|
_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 right selection.
|
|
*/
|
|
s_ptr = _XMGetSelectionPtr(p_ptr, s_num);
|
|
|
|
/*
|
|
* Check to see that the menu's dependencies have been
|
|
* recomputed and are up to date. If not, do it now.
|
|
*/
|
|
if (menu->recompute) XMenuRecompute(display, menu);
|
|
|
|
/*
|
|
* Compute the new menu origin such that the active point lies
|
|
* in the center of the desired active pane and selection.
|
|
* This sets the values of ul_x and ul_y.
|
|
*/
|
|
_XMTransToOrigin(display, menu, p_ptr, s_ptr, x_pos, y_pos, ul_x, ul_y);
|
|
|
|
/*
|
|
* Set remaining return argument values.
|
|
*/
|
|
*width = menu->width;
|
|
*height = menu->height;
|
|
|
|
/*
|
|
* Return successfully.
|
|
*/
|
|
_XMErrorCode = XME_NO_ERROR;
|
|
return(XM_SUCCESS);
|
|
}
|
|
|