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Initial import.
This commit is contained in:
Hisham Muhammad
350
Meter.c
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350
Meter.c
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/*
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htop - Meter.c
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(C) 2004,2005 Hisham H. Muhammad
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Released under the GNU GPL, see the COPYING file
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in the source distribution for its full text.
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*/
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#include "Meter.h"
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#include "Object.h"
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#include "CRT.h"
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#include "ListItem.h"
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#include "String.h"
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#include <stdlib.h>
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#include <curses.h>
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#include <string.h>
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#include <math.h>
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#include "debug.h"
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#include <assert.h>
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#define METER_BARBUFFER_LEN 128
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#define METER_GRAPHBUFFER_LEN 128
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/*{
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typedef struct Meter_ Meter;
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typedef void(*Meter_SetValues)(Meter*);
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typedef void(*Meter_Draw)(Meter*, int, int, int);
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typedef enum MeterMode_ {
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UNSET,
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BAR,
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TEXT,
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GRAPH,
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LED,
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LAST_METERMODE
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} MeterMode;
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struct Meter_ {
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Object super;
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int h;
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int w;
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Meter_Draw draw;
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Meter_SetValues setValues;
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int items;
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int* attributes;
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double* values;
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double total;
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char* caption;
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char* name;
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union {
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RichString* rs;
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char* c;
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double* graph;
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} displayBuffer;
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MeterMode mode;
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};
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extern char* METER_CLASS;
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}*/
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#ifndef MIN
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#define MIN(a,b) ((a)<(b)?(a):(b))
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#endif
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/* private property */
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char* METER_CLASS = "Meter";
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/* private */
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char* Meter_ledDigits[3][10] = {
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{ " __ "," "," __ "," __ "," "," __ "," __ "," __ "," __ "," __ "},
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{ "| |"," |"," __|"," __|","|__|","|__ ","|__ "," |","|__|","|__|"},
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{ "|__|"," |","|__ "," __|"," |"," __|","|__|"," |","|__|"," __|"},
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};
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/* private property */
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char Meter_barCharacters[] = "|#*@$%&";
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/* private property */
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static RichString Meter_stringBuffer;
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Meter* Meter_new(char* name, char* caption, int items) {
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Meter* this = malloc(sizeof(Meter));
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Meter_init(this, name, caption, items);
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return this;
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}
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void Meter_init(Meter* this, char* name, char* caption, int items) {
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((Object*)this)->delete = Meter_delete;
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((Object*)this)->class = METER_CLASS;
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this->items = items;
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this->name = name;
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this->caption = caption;
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this->attributes = malloc(sizeof(int) * items);
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this->values = malloc(sizeof(double) * items);
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this->displayBuffer.c = NULL;
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this->mode = UNSET;
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this->h = 0;
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}
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void Meter_delete(Object* cast) {
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Meter* this = (Meter*) cast;
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assert (this != NULL);
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Meter_done(this);
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free(this);
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}
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/* private */
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void Meter_freeBuffer(Meter* this) {
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switch (this->mode) {
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case BAR: {
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free(this->displayBuffer.c);
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break;
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}
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case GRAPH: {
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free(this->displayBuffer.graph);
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break;
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}
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default: {
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}
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}
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this->h = 0;
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}
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void Meter_done(Meter* this) {
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free(this->caption);
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free(this->attributes);
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free(this->values);
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free(this->name);
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Meter_freeBuffer(this);
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}
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/* private */
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void Meter_drawBar(Meter* this, int x, int y, int w) {
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w -= 2;
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attrset(CRT_colors[METER_TEXT]);
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mvaddstr(y, x, this->caption);
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int captionLen = strlen(this->caption);
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x += captionLen;
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w -= captionLen;
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attrset(CRT_colors[BAR_BORDER]);
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mvaddch(y, x, '[');
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mvaddch(y, x + w, ']');
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w--;
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x++;
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char bar[w];
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this->setValues(this);
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int blockSizes[10];
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for (int i = 0; i < w; i++)
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bar[i] = ' ';
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sprintf(bar + (w-strlen(this->displayBuffer.c)), "%s", this->displayBuffer.c);
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// First draw in the bar[] buffer...
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double total = 0.0;
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int offset = 0;
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for (int i = 0; i < this->items; i++) {
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this->values[i] = MAX(this->values[i], 0);
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this->values[i] = MIN(this->values[i], this->total);
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double value = this->values[i];
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if (value > 0) {
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blockSizes[i] = ceil((value/this->total) * w);
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} else {
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blockSizes[i] = 0;
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}
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int nextOffset = offset + blockSizes[i];
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// (Control against invalid values)
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nextOffset = MAX(nextOffset, 0);
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nextOffset = MIN(nextOffset, w);
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for (int j = offset; j < nextOffset; j++)
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if (bar[j] == ' ') {
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if (CRT_colorScheme == COLORSCHEME_MONOCHROME) {
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bar[j] = Meter_barCharacters[i];
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} else {
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bar[j] = '|';
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}
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}
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offset = nextOffset;
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total += this->values[i];
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}
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// ...then print the buffer.
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offset = 0;
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for (int i = 0; i < this->items; i++) {
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attrset(CRT_colors[this->attributes[i]]);
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mvaddnstr(y, x + offset, bar + offset, blockSizes[i]);
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offset += blockSizes[i];
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offset = MAX(offset, 0);
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offset = MIN(offset, w);
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}
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if (offset < w) {
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attrset(CRT_colors[BAR_SHADOW]);
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mvaddnstr(y, x + offset, bar + offset, w - offset);
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}
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move(y, x + w + 1);
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attrset(CRT_colors[RESET_COLOR]);
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}
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/* private */
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void Meter_drawText(Meter* this, int x, int y, int w) {
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this->setValues(this);
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this->w = w;
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attrset(CRT_colors[METER_TEXT]);
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mvaddstr(y, x, this->caption);
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int captionLen = strlen(this->caption);
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w -= captionLen;
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x += captionLen;
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((Object*)this)->display((Object*)this, this->displayBuffer.rs);
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mvhline(y, x, ' ', CRT_colors[DEFAULT_COLOR]);
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attrset(CRT_colors[RESET_COLOR]);
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mvaddchstr(y, x, this->displayBuffer.rs->chstr);
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}
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/* private */
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void Meter_drawDigit(int x, int y, int n) {
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for (int i = 0; i < 3; i++) {
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mvaddstr(y+i, x, Meter_ledDigits[i][n]);
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}
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}
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/* private */
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void Meter_drawLed(Meter* this, int x, int y, int w) {
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this->setValues(this);
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((Object*)this)->display((Object*)this, this->displayBuffer.rs);
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attrset(CRT_colors[LED_COLOR]);
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mvaddstr(y+2, x, this->caption);
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int xx = x + strlen(this->caption);
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for (int i = 0; i < this->displayBuffer.rs->len; i++) {
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char c = this->displayBuffer.rs->chstr[i];
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if (c >= '0' && c <= '9') {
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Meter_drawDigit(xx, y, c-48);
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xx += 4;
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} else {
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mvaddch(y+2, xx, c);
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xx += 1;
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}
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}
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attrset(CRT_colors[RESET_COLOR]);
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}
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#define DrawDot(a,y,c) do { \
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attrset(a); \
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mvaddstr(y, x+k, c); \
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} while(0)
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/* private */
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void Meter_drawGraph(Meter* this, int x, int y, int w) {
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for (int i = 0; i < METER_GRAPHBUFFER_LEN - 1; i++) {
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this->displayBuffer.graph[i] = this->displayBuffer.graph[i+1];
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}
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this->setValues(this);
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double value = 0.0;
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for (int i = 0; i < this->items; i++)
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value += this->values[i] / this->total;
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this->displayBuffer.graph[METER_GRAPHBUFFER_LEN - 1] = value;
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for (int i = METER_GRAPHBUFFER_LEN - w, k = 0; i < METER_GRAPHBUFFER_LEN; i++, k++) {
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double value = this->displayBuffer.graph[i];
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DrawDot( CRT_colors[DEFAULT_COLOR], y, " " );
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DrawDot( CRT_colors[DEFAULT_COLOR], y+1, " " );
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DrawDot( CRT_colors[DEFAULT_COLOR], y+2, " " );
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if (value >= 1.00) DrawDot( CRT_colors[GRAPH_1], y, "^" );
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else if (value >= 0.95) DrawDot( CRT_colors[GRAPH_1], y, "`" );
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else if (value >= 0.90) DrawDot( CRT_colors[GRAPH_1], y, "'" );
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else if (value >= 0.85) DrawDot( CRT_colors[GRAPH_2], y, "-" );
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else if (value >= 0.80) DrawDot( CRT_colors[GRAPH_2], y, "." );
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else if (value >= 0.75) DrawDot( CRT_colors[GRAPH_2], y, "," );
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else if (value >= 0.70) DrawDot( CRT_colors[GRAPH_3], y, "_" );
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else if (value >= 0.65) DrawDot( CRT_colors[GRAPH_3], y+1, "~" );
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else if (value >= 0.60) DrawDot( CRT_colors[GRAPH_3], y+1, "`" );
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else if (value >= 0.55) DrawDot( CRT_colors[GRAPH_4], y+1, "'" );
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else if (value >= 0.50) DrawDot( CRT_colors[GRAPH_4], y+1, "-" );
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else if (value >= 0.45) DrawDot( CRT_colors[GRAPH_4], y+1, "." );
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else if (value >= 0.40) DrawDot( CRT_colors[GRAPH_5], y+1, "," );
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else if (value >= 0.35) DrawDot( CRT_colors[GRAPH_5], y+1, "_" );
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else if (value >= 0.30) DrawDot( CRT_colors[GRAPH_6], y+2, "~" );
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else if (value >= 0.25) DrawDot( CRT_colors[GRAPH_7], y+2, "`" );
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else if (value >= 0.20) DrawDot( CRT_colors[GRAPH_7], y+2, "'" );
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else if (value >= 0.15) DrawDot( CRT_colors[GRAPH_7], y+2, "-" );
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else if (value >= 0.10) DrawDot( CRT_colors[GRAPH_8], y+2, "." );
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else if (value >= 0.05) DrawDot( CRT_colors[GRAPH_8], y+2, "," );
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else DrawDot( CRT_colors[GRAPH_9], y+2, "_" );
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}
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attrset(CRT_colors[RESET_COLOR]);
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}
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void Meter_setMode(Meter* this, MeterMode mode) {
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Meter_freeBuffer(this);
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switch (mode) {
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case UNSET: {
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// fallthrough to a sane default.
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mode = TEXT;
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}
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case TEXT: {
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this->draw = Meter_drawText;
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this->displayBuffer.rs = & Meter_stringBuffer;
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this->h = 1;
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break;
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}
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case LED: {
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this->draw = Meter_drawLed;
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this->displayBuffer.rs = & Meter_stringBuffer;
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this->h = 3;
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break;
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}
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case BAR: {
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this->draw = Meter_drawBar;
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this->displayBuffer.c = malloc(METER_BARBUFFER_LEN);
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this->h = 1;
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break;
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}
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case GRAPH: {
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this->draw = Meter_drawGraph;
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this->displayBuffer.c = calloc(METER_GRAPHBUFFER_LEN, sizeof(double));
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this->h = 3;
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break;
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}
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default: {
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assert(false);
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}
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}
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this->mode = mode;
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}
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ListItem* Meter_toListItem(Meter* this) {
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char buffer[50]; char* mode = NULL;
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switch (this->mode) {
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case BAR: mode = "Bar"; break;
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case LED: mode = "LED"; break;
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case TEXT: mode = "Text"; break;
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case GRAPH: mode = "Graph"; break;
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default: {
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assert(false);
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}
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}
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sprintf(buffer, "%s [%s]", this->name, mode);
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return ListItem_new(buffer, 0);
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}
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