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/* S-Lang console widgets
*
* (C) Copyright 2004-2008 Denis Rojo <jaromil@dyne.org>
*
* This source code is free software; you can redistribute it and/or
* modify it under the terms of the GNU Public License as published
* by the Free Software Foundation; either version 2 of the License,
* or (at your option) any later version.
*
* This source code 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.
* Please refer to the GNU Public License for more details.
*
* You should have received a copy of the GNU Public License along with
* this source code; if not, write to:
* Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <slw_log.h>
SLW_Log::SLW_Log()
: SLangWidget() {
set_name("log");
textconsole = NULL;
scrolling = false;
}
SLW_Log::~SLW_Log() {
if(textconsole)
delete textconsole;
}
bool SLW_Log::init() {
if(!console) {
fprintf(stderr, "can't initialize widget '%s': not placed on console", name);
return false;
}
// default widget settings
initialized = true;
visible = true;
cursor = false;
can_focus = true;
// create the private structure where to hold text
if(textconsole) delete textconsole;
textconsole = new SLW_TextConsole();
textconsole->widget = this;
textconsole->w = w;
textconsole->h = h;
textconsole->cur_x = 0;
textconsole->cur_y = 0;
refresh();
return true;
}
bool SLW_Log::feed(int key) {
bool res = true;
// interprets a keycode and perform the action (or write a letter)
if(!key) return(false);
switch(key) {
case KEY_PAGE_UP:
if(textconsole->vis_row_in->prev) {
textconsole->cur_row = (Row*) textconsole->cur_row->prev;
textconsole->vis_row_in = (Row*) textconsole->vis_row_in->prev;
scrolling = true;
refresh();
}
break;
case KEY_PAGE_DOWN:
if(textconsole->cur_row->next) {
textconsole->cur_row = (Row*) textconsole->cur_row->next;
textconsole->vis_row_in = (Row*) textconsole->vis_row_in->next;
if(!textconsole->cur_row->next) scrolling = false;
refresh();
}
break;
default:
res = false;
break;
// func("key [ %c : %u ] fed to log", key, key);
// refresh();
}
// TODO: scrolling pg-up down
return(res);
}
bool SLW_Log::refresh() {
Row *r;
register int c;
if(!textconsole->vis_row_in) return false;
else r = textconsole->vis_row_in;
// tell the renderer to blank the surface for a refresh
// this is a pure virtual function here
blank();
for(c = 0; c < h; c++ ) {
if(r->text) {
color = 1;
if(r->text[1] == '*') color = 3;
if(r->text[1] == '!') color = 2;
if(r->text[1] == 'W') color = 4;
putnch(r->text, 0, c, r->len);
}
if(!r->next) break;
else r = (Row*) r->next;
}
if(textconsole->cur_row != r) {
putnch((char*)"|",w-1,c-2,1);
putnch((char*)"V",w-1,c-1,1);
}
return true;
}
void SLW_Log::append(const char *text) {
Row *r = new Row();
int len = strlen(text);
r->insert_string((char*)text, len);
textconsole->rows.append( r );
if(!scrolling) textconsole->cur_row = r;
if(textconsole->cur_y < textconsole->h)
textconsole->cur_y++;
if(!scrolling & (textconsole->cur_y >= textconsole->h) )
textconsole->vis_row_in = (Row*) textconsole->vis_row_in->next;
}
void SLW_Log::notice(const char *text, ...) {
char msg[255];
va_list arg;
va_start(arg, text);
// TODO: colors
vsnprintf(msg, 254, text, arg);
append(msg);
va_end(arg);
}
void SLW_Log::error(const char *text, ...) {
char msg[255];
va_list arg;
va_start(arg, text);
// TODO: colors
vsnprintf(msg, 254, text, arg);
append(msg);
va_end(arg);
}
void SLW_Log::act(const char *text, ...) {
char msg[255];
va_list arg;
va_start(arg, text);
// TODO: colors
vsnprintf(msg, 254, text, arg);
append(msg);
va_end(arg);
}
void SLW_Log::warn(const char *text, ...) {
char msg[255];
va_list arg;
va_start(arg, text);
// TODO: colors
vsnprintf(msg, 254, text, arg);
append(msg);
va_end(arg);
}
void SLW_Log::func(const char *text, ...) {
char msg[255];
va_list arg;
va_start(arg, text);
// TODO: colors
vsnprintf(msg, 254, text, arg);
append(msg);
va_end(arg);
}
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