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Mark Qvist 2014-04-03 22:21:37 +02:00
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/**
* \file
* <!--
* This file is part of BeRTOS.
*
* Bertos is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As a special exception, you may use this file as part of a free software
* library without restriction. Specifically, if other files instantiate
* templates or use macros or inline functions from this file, or you compile
* this file and link it with other files to produce an executable, this
* file does not by itself cause the resulting executable to be covered by
* the GNU General Public License. This exception does not however
* invalidate any other reasons why the executable file might be covered by
* the GNU General Public License.
*
* Copyright 2005 Develer S.r.l. (http://www.develer.com/)
* -->
*
* \brief Integer edit widget (implementation).
*
* \author Bernie Innocenti <bernie@codewiz.org>
* \author Francesco Sacchi <batt@develer.com>
*/
#include "editint.h"
#include <cfg/macros.h>
#include <dt/dwidget.h>
#include <dt/dtag.h>
#include <dt/dnotifier.h>
#include <drv/lcd_text.h>
/**
* Init.
*/
void editint_init(DEditInt *e, dpos_t pos, dpos_t size, dcontext_t *context, int *value, int min, int max)
{
// Initialize superclass
widget_init(&e->widget, pos, size, context);
// Override superclass methods
e->widget.notifier.update = (update_func_ptr)editint_update;
// Init instance
e->value = value;
e->min = min;
e->max = max;
e->style = EDIS_DEFAULT;
e->draw = editint_draw;
}
/**
* Handle the messages (edit the int).
*/
void editint_update(DEditInt *e, dtag_t tag, dval_t _val)
{
bool changed = false;
int val = (int)_val;
switch (tag)
{
case TAG_SETVALUE:
*e->value = MINMAX(e->min, val, e->max);
changed = true;
break;
/* Increments the integer by val */
case TAG_UP:
if (e->style & EDIS_WRAP)
{
if (*e->value + val > e->max)
*e->value = (*e->value + val - e->min) % (e->max - e->min + 1) + e->min;
else
*e->value += val;
}
else
*e->value = MIN(*e->value + val, e->max);
changed = true;
break;
/* Decrements the integer by val */
case TAG_DOWN:
if (e->style & EDIS_WRAP)
{
if (*e->value - val < e->min)
*e->value = e->max - (e->max - (*e->value - val)) % (e->max - e->min + 1);
else
*e->value -= val;
}
else
*e->value = MAX(*e->value - val, e->min);
changed = true;
break;
default:
break;
}
if (changed)
{
e->draw(e);
dnotify_targets(&e->widget.notifier, TAG_SETVALUE, (dval_t)*e->value);
}
}
/**
* Draw the integer on the context.
*/
void editint_draw(DEditInt *e)
{
lcd_printf((Layer *)e->widget.context, (lcdpos_t)e->widget.pos, LCD_NORMAL,"%*d", (int)e->widget.size, *e->value);
}