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