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79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
#include "copyright.h"
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/* $Header: /u/src/emacs/19.0/oldXMenu/RCS/Locate.c,v 1.1 1992/04/11 22:10:20 jimb Exp $ */
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/* Copyright Massachusetts Institute of Technology 1985 */
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/*
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* XMenu: MIT Project Athena, X Window system menu package
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*
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* XMenuLocate - Return data necessary to position and locate
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* a menu on the screen.
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*
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* Author: Tony Della Fera, DEC
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* January 11, 1985
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*
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*/
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#include "XMenuInt.h"
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int
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XMenuLocate(display, menu, p_num, s_num, x_pos, y_pos, ul_x, ul_y, width, height)
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register Display *display; /* Previously opened display. */
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register XMenu *menu; /* Menu object being located. */
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int p_num; /* Active pane number. */
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int s_num; /* Active selection number. */
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int x_pos; /* X coordinate of mouse active position. */
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int y_pos; /* Y coordinate of mouse active position. */
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int *ul_x; /* Returned upper left menu X coordinate. */
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int *ul_y; /* Returned upper left menu Y coordinate. */
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int *width; /* Returned menu width. */
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int *height; /* Returned menu height. */
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{
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register XMPane *p_ptr; /* XMPane pointer. */
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register XMSelect *s_ptr; /* XMSelect pointer. */
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/*
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* Are the position arguments positive?
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*/
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if ((x_pos <= 0) || (y_pos <= 0)) {
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_XMErrorCode = XME_ARG_BOUNDS;
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return(XM_FAILURE);
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}
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/*
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* Find the right pane.
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*/
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p_ptr = _XMGetPanePtr(menu, p_num);
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if (p_ptr == NULL) return(XM_FAILURE);
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/*
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* Find the right selection.
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*/
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s_ptr = _XMGetSelectionPtr(p_ptr, s_num);
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/*
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* Check to see that the menu's dependencies have been
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* recomputed and are up to date. If not, do it now.
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*/
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if (menu->recompute) XMenuRecompute(display, menu);
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/*
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* Compute the new menu origin such that the active point lies
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* in the center of the desired active pane and selection.
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* This sets the values of ul_x and ul_y.
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*/
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_XMTransToOrigin(display, menu, p_ptr, s_ptr, x_pos, y_pos, ul_x, ul_y);
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/*
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* Set remaining return argument values.
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*/
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*width = menu->width;
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*height = menu->height;
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/*
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* Return successfully.
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*/
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_XMErrorCode = XME_NO_ERROR;
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return(XM_SUCCESS);
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}
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