htop/Meter.c

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2006-03-04 18:16:49 +00:00
/*
htop - Meter.c
2006-03-23 18:55:29 +00:00
(C) 2004-2006 Hisham H. Muhammad
2006-03-04 18:16:49 +00:00
Released under the GNU GPL, see the COPYING file
in the source distribution for its full text.
*/
#include "Meter.h"
#include "Object.h"
#include "CRT.h"
#include "ListItem.h"
#include "String.h"
#include <stdlib.h>
#include <curses.h>
#include <string.h>
#include <math.h>
#include "debug.h"
#include <assert.h>
#define METER_BARBUFFER_LEN 128
#define METER_GRAPHBUFFER_LEN 128
/*{
typedef struct Meter_ Meter;
typedef void(*Meter_SetValues)(Meter*);
typedef void(*Meter_Draw)(Meter*, int, int, int);
typedef enum MeterMode_ {
UNSET,
BAR,
TEXT,
GRAPH,
LED,
LAST_METERMODE
} MeterMode;
struct Meter_ {
Object super;
int h;
int w;
Meter_Draw draw;
Meter_SetValues setValues;
int items;
int* attributes;
double* values;
double total;
char* caption;
char* name;
union {
RichString* rs;
char* c;
double* graph;
} displayBuffer;
MeterMode mode;
};
extern char* METER_CLASS;
}*/
#ifndef MIN
#define MIN(a,b) ((a)<(b)?(a):(b))
#endif
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#ifndef MAX
#define MAX(a,b) ((a)>(b)?(a):(b))
#endif
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/* private property */
char* METER_CLASS = "Meter";
/* private */
char* Meter_ledDigits[3][10] = {
{ " __ "," "," __ "," __ "," "," __ "," __ "," __ "," __ "," __ "},
{ "| |"," |"," __|"," __|","|__|","|__ ","|__ "," |","|__|","|__|"},
{ "|__|"," |","|__ "," __|"," |"," __|","|__|"," |","|__|"," __|"},
};
/* private property */
char Meter_barCharacters[] = "|#*@$%&";
/* private property */
static RichString Meter_stringBuffer;
Meter* Meter_new(char* name, char* caption, int items) {
Meter* this = malloc(sizeof(Meter));
Meter_init(this, name, caption, items);
return this;
}
void Meter_init(Meter* this, char* name, char* caption, int items) {
((Object*)this)->delete = Meter_delete;
((Object*)this)->class = METER_CLASS;
this->items = items;
this->name = name;
this->caption = caption;
this->attributes = malloc(sizeof(int) * items);
this->values = malloc(sizeof(double) * items);
this->displayBuffer.c = NULL;
this->mode = UNSET;
this->h = 0;
}
void Meter_delete(Object* cast) {
Meter* this = (Meter*) cast;
assert (this != NULL);
Meter_done(this);
free(this);
}
/* private */
void Meter_freeBuffer(Meter* this) {
switch (this->mode) {
case BAR: {
free(this->displayBuffer.c);
break;
}
case GRAPH: {
free(this->displayBuffer.graph);
break;
}
default: {
}
}
this->h = 0;
}
void Meter_done(Meter* this) {
free(this->caption);
free(this->attributes);
free(this->values);
free(this->name);
Meter_freeBuffer(this);
}
/* private */
void Meter_drawBar(Meter* this, int x, int y, int w) {
w -= 2;
attrset(CRT_colors[METER_TEXT]);
mvaddstr(y, x, this->caption);
int captionLen = strlen(this->caption);
x += captionLen;
w -= captionLen;
attrset(CRT_colors[BAR_BORDER]);
mvaddch(y, x, '[');
mvaddch(y, x + w, ']');
w--;
x++;
char bar[w];
this->setValues(this);
int blockSizes[10];
for (int i = 0; i < w; i++)
bar[i] = ' ';
sprintf(bar + (w-strlen(this->displayBuffer.c)), "%s", this->displayBuffer.c);
// First draw in the bar[] buffer...
double total = 0.0;
int offset = 0;
for (int i = 0; i < this->items; i++) {
this->values[i] = MAX(this->values[i], 0);
this->values[i] = MIN(this->values[i], this->total);
double value = this->values[i];
if (value > 0) {
blockSizes[i] = ceil((value/this->total) * w);
} else {
blockSizes[i] = 0;
}
int nextOffset = offset + blockSizes[i];
// (Control against invalid values)
nextOffset = MAX(nextOffset, 0);
nextOffset = MIN(nextOffset, w);
for (int j = offset; j < nextOffset; j++)
if (bar[j] == ' ') {
if (CRT_colorScheme == COLORSCHEME_MONOCHROME) {
bar[j] = Meter_barCharacters[i];
} else {
bar[j] = '|';
}
}
offset = nextOffset;
total += this->values[i];
}
// ...then print the buffer.
offset = 0;
for (int i = 0; i < this->items; i++) {
attrset(CRT_colors[this->attributes[i]]);
mvaddnstr(y, x + offset, bar + offset, blockSizes[i]);
offset += blockSizes[i];
offset = MAX(offset, 0);
offset = MIN(offset, w);
}
if (offset < w) {
attrset(CRT_colors[BAR_SHADOW]);
mvaddnstr(y, x + offset, bar + offset, w - offset);
}
move(y, x + w + 1);
attrset(CRT_colors[RESET_COLOR]);
}
/* private */
void Meter_drawText(Meter* this, int x, int y, int w) {
this->setValues(this);
this->w = w;
attrset(CRT_colors[METER_TEXT]);
mvaddstr(y, x, this->caption);
int captionLen = strlen(this->caption);
w -= captionLen;
x += captionLen;
((Object*)this)->display((Object*)this, this->displayBuffer.rs);
mvhline(y, x, ' ', CRT_colors[DEFAULT_COLOR]);
attrset(CRT_colors[RESET_COLOR]);
mvaddchstr(y, x, this->displayBuffer.rs->chstr);
}
/* private */
void Meter_drawDigit(int x, int y, int n) {
for (int i = 0; i < 3; i++) {
mvaddstr(y+i, x, Meter_ledDigits[i][n]);
}
}
/* private */
void Meter_drawLed(Meter* this, int x, int y, int w) {
this->setValues(this);
((Object*)this)->display((Object*)this, this->displayBuffer.rs);
attrset(CRT_colors[LED_COLOR]);
mvaddstr(y+2, x, this->caption);
int xx = x + strlen(this->caption);
for (int i = 0; i < this->displayBuffer.rs->len; i++) {
char c = this->displayBuffer.rs->chstr[i];
if (c >= '0' && c <= '9') {
Meter_drawDigit(xx, y, c-48);
xx += 4;
} else {
mvaddch(y+2, xx, c);
xx += 1;
}
}
attrset(CRT_colors[RESET_COLOR]);
}
#define DrawDot(a,y,c) do { \
attrset(a); \
mvaddstr(y, x+k, c); \
} while(0)
/* private */
void Meter_drawGraph(Meter* this, int x, int y, int w) {
for (int i = 0; i < METER_GRAPHBUFFER_LEN - 1; i++) {
this->displayBuffer.graph[i] = this->displayBuffer.graph[i+1];
}
this->setValues(this);
double value = 0.0;
for (int i = 0; i < this->items; i++)
value += this->values[i] / this->total;
this->displayBuffer.graph[METER_GRAPHBUFFER_LEN - 1] = value;
for (int i = METER_GRAPHBUFFER_LEN - w, k = 0; i < METER_GRAPHBUFFER_LEN; i++, k++) {
double value = this->displayBuffer.graph[i];
DrawDot( CRT_colors[DEFAULT_COLOR], y, " " );
DrawDot( CRT_colors[DEFAULT_COLOR], y+1, " " );
DrawDot( CRT_colors[DEFAULT_COLOR], y+2, " " );
if (value >= 1.00) DrawDot( CRT_colors[GRAPH_1], y, "^" );
else if (value >= 0.95) DrawDot( CRT_colors[GRAPH_1], y, "`" );
else if (value >= 0.90) DrawDot( CRT_colors[GRAPH_1], y, "'" );
else if (value >= 0.85) DrawDot( CRT_colors[GRAPH_2], y, "-" );
else if (value >= 0.80) DrawDot( CRT_colors[GRAPH_2], y, "." );
else if (value >= 0.75) DrawDot( CRT_colors[GRAPH_2], y, "," );
else if (value >= 0.70) DrawDot( CRT_colors[GRAPH_3], y, "_" );
else if (value >= 0.65) DrawDot( CRT_colors[GRAPH_3], y+1, "~" );
else if (value >= 0.60) DrawDot( CRT_colors[GRAPH_3], y+1, "`" );
else if (value >= 0.55) DrawDot( CRT_colors[GRAPH_4], y+1, "'" );
else if (value >= 0.50) DrawDot( CRT_colors[GRAPH_4], y+1, "-" );
else if (value >= 0.45) DrawDot( CRT_colors[GRAPH_4], y+1, "." );
else if (value >= 0.40) DrawDot( CRT_colors[GRAPH_5], y+1, "," );
else if (value >= 0.35) DrawDot( CRT_colors[GRAPH_5], y+1, "_" );
else if (value >= 0.30) DrawDot( CRT_colors[GRAPH_6], y+2, "~" );
else if (value >= 0.25) DrawDot( CRT_colors[GRAPH_7], y+2, "`" );
else if (value >= 0.20) DrawDot( CRT_colors[GRAPH_7], y+2, "'" );
else if (value >= 0.15) DrawDot( CRT_colors[GRAPH_7], y+2, "-" );
else if (value >= 0.10) DrawDot( CRT_colors[GRAPH_8], y+2, "." );
else if (value >= 0.05) DrawDot( CRT_colors[GRAPH_8], y+2, "," );
else DrawDot( CRT_colors[GRAPH_9], y+2, "_" );
}
attrset(CRT_colors[RESET_COLOR]);
}
void Meter_setMode(Meter* this, MeterMode mode) {
Meter_freeBuffer(this);
switch (mode) {
case UNSET: {
// fallthrough to a sane default.
mode = TEXT;
}
case TEXT: {
this->draw = Meter_drawText;
this->displayBuffer.rs = & Meter_stringBuffer;
this->h = 1;
break;
}
case LED: {
this->draw = Meter_drawLed;
this->displayBuffer.rs = & Meter_stringBuffer;
this->h = 3;
break;
}
case BAR: {
this->draw = Meter_drawBar;
this->displayBuffer.c = malloc(METER_BARBUFFER_LEN);
this->h = 1;
break;
}
case GRAPH: {
this->draw = Meter_drawGraph;
this->displayBuffer.c = calloc(METER_GRAPHBUFFER_LEN, sizeof(double));
this->h = 3;
break;
}
default: {
assert(false);
}
}
this->mode = mode;
}
ListItem* Meter_toListItem(Meter* this) {
char buffer[50]; char* mode = NULL;
switch (this->mode) {
case BAR: mode = "Bar"; break;
case LED: mode = "LED"; break;
case TEXT: mode = "Text"; break;
case GRAPH: mode = "Graph"; break;
default: {
assert(false);
}
}
sprintf(buffer, "%s [%s]", this->name, mode);
return ListItem_new(buffer, 0);
}