htop/Header.c

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/*
htop - Header.c
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(C) 2004-2011 Hisham H. Muhammad
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Released under the GNU GPL, see the COPYING file
in the source distribution for its full text.
*/
#include "Header.h"
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#include "CRT.h"
#include "StringUtils.h"
#include "Platform.h"
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#include <assert.h>
#include <time.h>
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#include <string.h>
#include <stdlib.h>
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/*{
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#include "Meter.h"
#include "Settings.h"
#include "Vector.h"
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typedef struct Header_ {
Vector** columns;
Settings* settings;
struct ProcessList_* pl;
int nrColumns;
int pad;
int height;
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} Header;
}*/
#ifndef MAX
#define MAX(a,b) ((a)>(b)?(a):(b))
#endif
#ifndef Header_forEachColumn
#define Header_forEachColumn(this_, i_) for (int (i_)=0; (i_) < (this_)->nrColumns; ++(i_))
#endif
Header* Header_new(struct ProcessList_* pl, Settings* settings, int nrColumns) {
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Header* this = xCalloc(1, sizeof(Header));
this->columns = xCalloc(nrColumns, sizeof(Vector*));
this->settings = settings;
this->pl = pl;
this->nrColumns = nrColumns;
Header_forEachColumn(this, i) {
this->columns[i] = Vector_new(Class(Meter), true, DEFAULT_SIZE);
}
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return this;
}
void Header_delete(Header* this) {
Header_forEachColumn(this, i) {
Vector_delete(this->columns[i]);
}
free(this->columns);
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free(this);
}
void Header_populateFromSettings(Header* this) {
Header_forEachColumn(this, col) {
MeterColumnSettings* colSettings = &this->settings->columns[col];
for (int i = 0; i < colSettings->len; i++) {
Header_addMeterByName(this, colSettings->names[i], col);
if (colSettings->modes[i] != 0) {
Header_setMode(this, i, colSettings->modes[i], col);
}
}
}
Header_calculateHeight(this);
}
void Header_writeBackToSettings(const Header* this) {
Header_forEachColumn(this, col) {
MeterColumnSettings* colSettings = &this->settings->columns[col];
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String_freeArray(colSettings->names);
free(colSettings->modes);
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Vector* vec = this->columns[col];
int len = Vector_size(vec);
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colSettings->names = xCalloc(len+1, sizeof(char*));
colSettings->modes = xCalloc(len, sizeof(int));
colSettings->len = len;
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for (int i = 0; i < len; i++) {
Meter* meter = (Meter*) Vector_get(vec, i);
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char* name = xCalloc(64, sizeof(char));
if (meter->param) {
xSnprintf(name, 63, "%s(%d)", As_Meter(meter)->name, meter->param);
} else {
xSnprintf(name, 63, "%s", As_Meter(meter)->name);
}
colSettings->names[i] = name;
colSettings->modes[i] = meter->mode;
}
}
}
MeterModeId Header_addMeterByName(Header* this, char* name, int column) {
Vector* meters = this->columns[column];
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char* paren = strchr(name, '(');
int param = 0;
if (paren) {
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int ok = sscanf(paren, "(%10d)", &param);
if (!ok) param = 0;
*paren = '\0';
}
MeterModeId mode = TEXT_METERMODE;
for (MeterClass** type = Platform_meterTypes; *type; type++) {
if (String_eq(name, (*type)->name)) {
Meter* meter = Meter_new(this->pl, param, *type);
Vector_add(meters, meter);
mode = meter->mode;
break;
}
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}
if (paren)
*paren = '(';
return mode;
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}
void Header_setMode(Header* this, int i, MeterModeId mode, int column) {
Vector* meters = this->columns[column];
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if (i >= Vector_size(meters))
return;
Meter* meter = (Meter*) Vector_get(meters, i);
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Meter_setMode(meter, mode);
}
Meter* Header_addMeterByClass(Header* this, MeterClass* type, int param, int column) {
Vector* meters = this->columns[column];
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Meter* meter = Meter_new(this->pl, param, type);
Vector_add(meters, meter);
return meter;
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}
int Header_size(Header* this, int column) {
Vector* meters = this->columns[column];
return Vector_size(meters);
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}
char* Header_readMeterName(Header* this, int i, int column) {
Vector* meters = this->columns[column];
Meter* meter = (Meter*) Vector_get(meters, i);
int nameLen = strlen(Meter_name(meter));
int len = nameLen + 100;
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char* name = xMalloc(len);
strncpy(name, Meter_name(meter), nameLen);
name[nameLen] = '\0';
if (meter->param)
xSnprintf(name + nameLen, len - nameLen, "(%d)", meter->param);
return name;
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}
MeterModeId Header_readMeterMode(Header* this, int i, int column) {
Vector* meters = this->columns[column];
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Meter* meter = (Meter*) Vector_get(meters, i);
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return meter->mode;
}
void Header_reinit(Header* this) {
Header_forEachColumn(this, col) {
for (int i = 0; i < Vector_size(this->columns[col]); i++) {
Meter* meter = (Meter*) Vector_get(this->columns[col], i);
if (Meter_initFn(meter))
Meter_init(meter);
}
}
}
void Header_draw(const Header* this) {
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int height = this->height;
int pad = this->pad;
attrset(CRT_colors[RESET_COLOR]);
for (int y = 0; y < height; y++) {
mvhline(y, 0, ' ', COLS);
}
int width = COLS / this->nrColumns - (pad * this->nrColumns - 1) - 1;
int x = pad;
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Header_forEachColumn(this, col) {
Vector* meters = this->columns[col];
for (int y = (pad / 2), i = 0; i < Vector_size(meters); i++) {
Meter* meter = (Meter*) Vector_get(meters, i);
meter->draw(meter, x, y, width);
y += meter->h;
}
x += width + pad;
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}
}
int Header_calculateHeight(Header* this) {
int pad = this->settings->headerMargin ? 2 : 0;
int maxHeight = pad;
Header_forEachColumn(this, col) {
Vector* meters = this->columns[col];
int height = pad;
for (int i = 0; i < Vector_size(meters); i++) {
Meter* meter = (Meter*) Vector_get(meters, i);
height += meter->h;
}
maxHeight = MAX(maxHeight, height);
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}
this->height = maxHeight;
this->pad = pad;
return maxHeight;
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}