138 lines
3.0 KiB
C
138 lines
3.0 KiB
C
/*
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* $Id: mouse.c,v 1.12 2003/11/26 17:31:38 tom Exp $
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*
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* mouse.c -- mouse support for dialog
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*
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* Copyright 2002,2003 Thomas E. Dickey
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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********/
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#include "dialog.h"
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#if USE_MOUSE
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static int basex, basey;
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static mseRegion *regionList = NULL;
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/*=========== region related functions =============*/
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static mseRegion *
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find_region_by_code(int code)
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{
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mseRegion *butPtr;
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for (butPtr = regionList; butPtr; butPtr = butPtr->next) {
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if (code == butPtr->code)
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break;
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}
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return butPtr;
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}
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void
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dlg_mouse_setbase(int x, int y)
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{
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basex = x;
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basey = y;
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}
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void
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dlg_mouse_mkbigregion(int y, int x,
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int height, int width,
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int code,
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int step_y, int step_x,
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int mode)
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{
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mseRegion *butPtr = dlg_mouse_mkregion(y, x, height, width, -(M_EVENT + code));
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butPtr->mode = mode;
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butPtr->step_x = MAX(1, step_x);
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butPtr->step_y = MAX(1, step_y);
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}
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void
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dlg_mouse_free_regions(void)
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{
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while (regionList != 0) {
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mseRegion *butPtr = regionList->next;
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free(regionList);
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regionList = butPtr;
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}
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}
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mseRegion *
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dlg_mouse_mkregion(int y, int x, int height, int width, int code)
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{
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mseRegion *butPtr;
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if ((butPtr = find_region_by_code(code)) == 0) {
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butPtr = malloc(sizeof(mseRegion));
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assert_ptr(butPtr, "dlg_mouse_mkregion");
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butPtr->next = regionList;
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regionList = butPtr;
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}
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if (butPtr != 0) {
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butPtr->mode = -1;
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butPtr->step_x = 0;
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butPtr->step_y = 0;
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butPtr->y = basey + y;
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butPtr->Y = basey + y + height;
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butPtr->x = basex + x;
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butPtr->X = basex + x + width;
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butPtr->code = code;
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}
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return butPtr;
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}
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/* retrieve the frame under the pointer */
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static mseRegion *
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any_mouse_region(int y, int x, int small)
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{
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mseRegion *butPtr;
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for (butPtr = regionList; butPtr; butPtr = butPtr->next) {
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if (small ^ (butPtr->code >= 0))
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continue;
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if (y < butPtr->y || y >= butPtr->Y)
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continue;
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if (x < butPtr->x || x >= butPtr->X)
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continue;
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break; /* found */
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}
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return butPtr;
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}
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/* retrieve the frame under the pointer */
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mseRegion *
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dlg_mouse_region(int y, int x)
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{
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return any_mouse_region(y, x, TRUE);
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}
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/* retrieve the bigframe under the pointer */
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mseRegion *
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dlg_mouse_bigregion(int y, int x)
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{
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return any_mouse_region(y, x, FALSE);
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}
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#else
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void mouse_dummy(void);
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void
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mouse_dummy(void)
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{
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}
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#endif /* USE_MOUSE */
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