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/*
* $Id: mouse.c,v 1.18 2007/02/22 21:51:38 tom Exp $
*
* mouse.c -- mouse support for dialog
*
* Copyright 2002-2006,2007 Thomas E. Dickey
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License, version 2.1
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to
* Free Software Foundation, Inc.
* 51 Franklin St., Fifth Floor
* Boston, MA 02110, USA.
*/
#include <dialog.h>
#include <dlg_keys.h>
#if USE_MOUSE
static int basex, basey;
static mseRegion *regionList = NULL;
/*=========== region related functions =============*/
static mseRegion *
find_region_by_code(int code)
{
mseRegion *butPtr;
for (butPtr = regionList; butPtr; butPtr = butPtr->next) {
if (code == butPtr->code)
break;
}
return butPtr;
}
void
dlg_mouse_setbase(int x, int y)
{
basex = x;
basey = y;
}
void
dlg_mouse_mkbigregion(int y, int x,
int height, int width,
int code,
int step_y, int step_x,
int mode)
{
mseRegion *butPtr = dlg_mouse_mkregion(y, x, height, width, -DLGK_MOUSE(code));
butPtr->mode = mode;
butPtr->step_x = MAX(1, step_x);
butPtr->step_y = MAX(1, step_y);
}
void
dlg_mouse_free_regions(void)
{
while (regionList != 0) {
mseRegion *butPtr = regionList->next;
free(regionList);
regionList = butPtr;
}
}
mseRegion *
dlg_mouse_mkregion(int y, int x, int height, int width, int code)
{
mseRegion *butPtr;
if ((butPtr = find_region_by_code(code)) == 0) {
butPtr = dlg_malloc(mseRegion, 1);
assert_ptr(butPtr, "dlg_mouse_mkregion");
butPtr->next = regionList;
regionList = butPtr;
}
if (butPtr != 0) {
butPtr->mode = -1;
butPtr->step_x = 0;
butPtr->step_y = 0;
butPtr->y = basey + y;
butPtr->Y = basey + y + height;
butPtr->x = basex + x;
butPtr->X = basex + x + width;
butPtr->code = code;
}
return butPtr;
}
/* retrieve the frame under the pointer */
static mseRegion *
any_mouse_region(int y, int x, int small)
{
mseRegion *butPtr;
for (butPtr = regionList; butPtr; butPtr = butPtr->next) {
if (small ^ (butPtr->code >= 0))
continue;
if (y < butPtr->y || y >= butPtr->Y)
continue;
if (x < butPtr->x || x >= butPtr->X)
continue;
break; /* found */
}
return butPtr;
}
/* retrieve the frame under the pointer */
mseRegion *
dlg_mouse_region(int y, int x)
{
return any_mouse_region(y, x, TRUE);
}
/* retrieve the bigframe under the pointer */
mseRegion *
dlg_mouse_bigregion(int y, int x)
{
return any_mouse_region(y, x, FALSE);
}
#else
void mouse_dummy(void);
void
mouse_dummy(void)
{
}
#endif /* USE_MOUSE */
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