339 lines
8.4 KiB
C
339 lines
8.4 KiB
C
/*
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* Copyright (c) 2004, Adam Dunkels.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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* $Id: editor.c,v 1.1 2006/06/17 22:41:11 adamdunkels Exp $
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*/
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#define EDITOR_CONF_WIDTH 32
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#define EDITOR_CONF_HEIGHT 16
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#define EDITOR_CONF_MAX_FILENAME_LEN 16
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#include "contiki.h"
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#include "contiki-lib.h"
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#include "ctk/ctk.h"
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#include "cfs/cfs.h"
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#include "lib/ctk-filedialog.h"
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#define ISO_nl 0x0a
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PROCESS(editor_process, "Editor");
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static struct ctk_window window;
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#define LINE_LEN 60
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#define NUM_LINES EDITOR_CONF_HEIGHT
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struct line {
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struct line *next, *prev;
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char text[LINE_LEN];
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};
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MEMB(linesmem, struct line, NUM_LINES);
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static struct line *lines;
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static struct {
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unsigned char x, y;
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struct ctk_label labels[NUM_LINES];
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} editor_state;
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static struct ctk_button openbutton =
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{CTK_BUTTON(0, 0, 4, "Open")};
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static char statustext[EDITOR_CONF_WIDTH + 1];
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static struct ctk_label statuslabel =
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{CTK_LABEL(0, EDITOR_CONF_HEIGHT + 2, EDITOR_CONF_WIDTH, 1, statustext)};
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static struct ctk_menu menu;
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static unsigned char menuitem_new, menuitem_open, menuitem_save;
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static char filename[EDITOR_CONF_MAX_FILENAME_LEN];
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static struct ctk_filedialog_state filedialog;
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enum {
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OPEN_EVENT
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};
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/*---------------------------------------------------------------------------*/
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static void
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show_statustext(char *text1, char *text2)
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{
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int len;
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len = strlen(text1);
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if(len < sizeof(statustext)) {
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strncpy(statustext, text1, sizeof(statustext));
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strncpy(statustext + len, text2, sizeof(statustext) - len);
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CTK_WIDGET_REDRAW(&statuslabel);
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}
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}
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/*---------------------------------------------------------------------------*/
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static void
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editor_start(void)
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{
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unsigned char i;
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register struct ctk_label *label;
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struct line *l, *m;
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m = NULL;
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for(i = 0; i < NUM_LINES; ++i) {
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label = &editor_state.labels[i];
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l = (struct line *)memb_alloc(&linesmem);
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if(l != NULL) {
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l->next = NULL;
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l->prev = m;
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if(m == NULL) {
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/* First line */
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lines = l;
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} else {
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m->next = l;
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}
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CTK_LABEL_NEW(label, 0, i + 1, EDITOR_CONF_WIDTH, 1, l->text);
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CTK_WIDGET_SET_FLAG(label, CTK_WIDGET_FLAG_MONOSPACE);
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CTK_WIDGET_ADD(&window, label);
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}
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m = l;
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}
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}
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/*---------------------------------------------------------------------------*/
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static void
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editor_eventhandler(process_event_t ev, process_data_t data)
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{
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char *textptr, *textptr2;
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unsigned char len;
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if(ev == ctk_signal_keypress) {
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/* CTK_WIDGET_FOCUS(t->label.window, &t->label);*/
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textptr = &(editor_state.labels[editor_state.y].text[editor_state.x]);
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*textptr &= 0x7f;
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CTK_WIDGET_REDRAW(&(editor_state.labels[editor_state.y]));
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switch((ctk_arch_key_t)data) {
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case CH_CURS_DOWN:
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++editor_state.y;
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if(editor_state.y >= EDITOR_CONF_HEIGHT) {
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editor_state.y = EDITOR_CONF_HEIGHT - 1;
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}
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break;
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case CH_CURS_UP:
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if(editor_state.y > 0) {
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--editor_state.y;
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}
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break;
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case CH_CURS_RIGHT:
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if(editor_state.x < strlen(editor_state.labels[editor_state.y].text)) {
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++editor_state.x;
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}
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break;
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case CH_CURS_LEFT:
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if(editor_state.x > 0) {
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--editor_state.x;
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} else {
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if(editor_state.y > 0) {
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--editor_state.y;
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editor_state.x = strlen(editor_state.labels[editor_state.y].text);
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}
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}
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break;
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case CH_ENTER:
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editor_state.x = 0;
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++editor_state.y;
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if(editor_state.y >= EDITOR_CONF_HEIGHT) {
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editor_state.y = EDITOR_CONF_HEIGHT - 1;
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}
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break;
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case CH_DEL:
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/* len = t->label.w - t->xpos;
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if(t->xpos > 0 && len > 0) {
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strncpy(textptr - 1, textptr,
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len);
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*(textptr + len - 1) = 0;
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--t->xpos;
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}*/
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break;
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default:
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len = EDITOR_CONF_WIDTH - editor_state.x;
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if(len > 0) {
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textptr2 = textptr + len - 1;
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while(textptr2 + 1 > textptr) {
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*(textptr2 + 1) = *textptr2;
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--textptr2;
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}
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*textptr = (char)data;
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++editor_state.x;
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if(editor_state.x == EDITOR_CONF_WIDTH) {
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editor_state.x = 0;
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if(editor_state.y < EDITOR_CONF_HEIGHT - 1) {
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++editor_state.y;
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}
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}
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}
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break;
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}
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textptr = &(editor_state.labels[editor_state.y].text[editor_state.x]);
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*textptr |= 0x80;
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CTK_WIDGET_REDRAW(&(editor_state.labels[editor_state.y]));
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/* } else if(s == ctk_signal_widget_activate &&
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data == (process_data_t)t) {
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textptr = &(t->label.text[t->ypos * t->label.w + t->xpos]);
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*textptr &= 0x7f;
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t->xpos = 0;
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if(t->ypos < t->label.h - 1) {
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++t->ypos;
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}
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textptr = &(t->label.text[t->ypos * t->label.w + t->xpos]);
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*textptr |= 0x80;
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CTK_WIDGET_REDRAW(&t->label);*/
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}
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}
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/*---------------------------------------------------------------------------*/
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static void
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open_file(char *name)
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{
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int fd;
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struct line *l;
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char line[LINE_LEN];
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char *cptr;
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int i, len, clen;
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fd = cfs_open(name, 0);
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if(fd < 0) {
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show_statustext("Could not open file ", name);
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return;
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}
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l = lines;
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cptr = l->text;
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clen = LINE_LEN;
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do {
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/* Read a portion of the input file */
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len = cfs_read(fd, line, LINE_LEN);
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/* Split the input into lines. */
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for(i = 0; i < len; ++i) {
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if(line[i] == ISO_nl ||
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clen == 0) {
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*cptr = 0;
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l = l->next;
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if(l != NULL) {
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cptr = l->text;
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clen = LINE_LEN;
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} else {
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len = -1;
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break;
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}
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} else {
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*cptr++ = line[i];
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--clen;
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}
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}
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} while(len > 0);
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cfs_close(fd);
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}
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/*---------------------------------------------------------------------------*/
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static void
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quit(void)
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{
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ctk_window_close(&window);
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process_exit(&editor_process);
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LOADER_UNLOAD();
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(editor_process, ev, data)
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{
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PROCESS_BEGIN();
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memb_init(&linesmem);
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ctk_window_new(&window,
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EDITOR_CONF_WIDTH + 2,
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EDITOR_CONF_HEIGHT + 3,
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"Editor");
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CTK_WIDGET_ADD(&window, &openbutton);
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CTK_WIDGET_ADD(&window, &statuslabel);
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CTK_WIDGET_FOCUS(&window, &openbutton);
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editor_start();
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ctk_window_open(&window);
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while(1) {
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PROCESS_WAIT_EVENT();
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if(ctk_filedialog_eventhandler(&filedialog, ev, data)) {
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} else {
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if(ev == PROCESS_EVENT_EXIT) {
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quit();
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} else if(ev == OPEN_EVENT) {
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/* printf("Open file '%s'\n", (char *)data);*/
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open_file((char *)data);
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ctk_window_redraw(&window);
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} else {
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if(ev == ctk_signal_window_close &&
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data == (process_data_t)&window) {
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quit();
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} else if(ev == ctk_signal_widget_activate) {
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if(data == (process_data_t)&openbutton) {
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ctk_filedialog_open(&filedialog, "Open", OPEN_EVENT);
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}
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} else {
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editor_eventhandler(ev, data);
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}
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}
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}
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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/*LOADER_INIT_FUNC(editor_init, arg)
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{
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arg_free(arg);
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id = ek_start(&p);
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}*/
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/*---------------------------------------------------------------------------*/
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