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/* Copyright (C) 1994 - 1996
Olav Woelfelschneider (wosch@rbg.informatik.th-darmstadt.de)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "McApp.h"
#include "McGadget.h"
#include "McLoad.h"
#define LOAD ((McLoad *)(gadget->specialInfo))
static void McLoadUpdate(McGadget *gadget, int busy, int all);
static int McLoadEvent(McGadget *gadget, XEvent *event);
static void McLoadCleanup(McGadget *gadget);
McSpecialInfo *McCreateLoad(unsigned int flags, int depth,
int min, int max, int base) {
McLoad *load = (McLoad *) calloc(sizeof(McLoad), 1);
load->flags = flags;
load->depth=depth;
load->ptr=0;
load->min=min;
load->max=max;
load->base=base;
load->data = (signed short *)calloc(depth, sizeof(signed short));
load->specialInfo.updateProc = McLoadUpdate;
load->specialInfo.eventProc = McLoadEvent;
load->specialInfo.cleanupProc = McLoadCleanup;
return (McSpecialInfo *)load;
}
static void McLoadCleanup(McGadget *gadget) {
free(LOAD->data);
free(gadget->specialInfo);
}
static void McLoadUpdate(McGadget *gadget, int busy,int all) {
int ptr,py,px,w=gadget->width,h=gadget->height;
int ye = h-1;
McWindow *mcw=gadget->mcw;
McApp *app = mcw->app;
Display *dsp = app->display;
GC gc1,gc2;
if (gadget->flags & GAD_SELECTED) {
gc1=app->gc[GC_SELECTED];
gc2=app->gc[GC_NORMAL];
} else {
gc1=app->gc[GC_CLEAR];
gc2=app->gc[GC_NORMAL];
}
ptr=LOAD->ptr;
if (LOAD->flags & LOAD_RIGHT_ALIGNED) {
px=w-1;
} else {
if (ptr>=w) {
px=w;
} else {
px=ptr;
if (px<=(w-1))
XFillRectangle(dsp, gadget->win, gc1, px, 0, w-px, h);
}
px--;
}
if (LOAD->flags & LOAD_BAR) {
while ((px>=0) && ptr) {
py = h - ((LOAD->data[--ptr]-LOAD->min) * h / LOAD->max);
if (py) XDrawLine(dsp, gadget->win, gc1, px, 0, px, py-1);
if (py<h) XDrawLine(dsp, gadget->win, gc2, px, py, px, h-1);
px--;
}
} else {
while ((px>=0) && ptr) {
py = h - ((LOAD->data[--ptr]-LOAD->min) * h / LOAD->max);
XDrawLine (dsp, gadget->win, gc1, px, 0, px, ye);
XDrawPoint(dsp, gadget->win, gc2, px, py-1);
px--;
}
}
if (px>=0) {
XFillRectangle(dsp, gadget->win, gc1, 0, 0, px+1, h);
}
}
static int McLoadEvent(McGadget *gadget, XEvent *event) {
return 0;
}
void McLoadShiftIn(McGadget *gadget, signed short val) {
if (LOAD->ptr >= LOAD->depth) {
memmove(LOAD->data,&LOAD->data[1],(LOAD->depth-1)*sizeof(signed short));
LOAD->ptr=LOAD->depth-1;
LOAD->data[LOAD->ptr++]=val;
} else {
LOAD->data[LOAD->ptr++]=val;
}
McGadgetUpdate(gadget);
}
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