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/*
htop - ColumnsPanel.c
(C) 2004-2011 Hisham H. Muhammad
Released under the GNU GPLv2+, see the COPYING file
in the source distribution for its full text.
*/
#include "config.h" // IWYU pragma: keep
#include "ColumnsPanel.h"
#include <assert.h>
#include <ctype.h>
#include <stdlib.h>
#include "CRT.h"
#include "DynamicColumn.h"
#include "FunctionBar.h"
#include "Hashtable.h"
#include "ListItem.h"
#include "Object.h"
#include "Process.h"
#include "ProvideCurses.h"
#include "RowField.h"
#include "XUtils.h"
static const char* const ColumnsFunctions[] = {" ", " ", " ", " ", " ", " ", "MoveUp", "MoveDn", "Remove", "Done ", NULL};
static void ColumnsPanel_delete(Object* object) {
ColumnsPanel* this = (ColumnsPanel*) object;
Panel_done(&this->super);
free(this);
}
static HandlerResult ColumnsPanel_eventHandler(Panel* super, int ch) {
ColumnsPanel* const this = (ColumnsPanel*) super;
int selected = Panel_getSelectedIndex(super);
HandlerResult result = IGNORED;
int size = Panel_size(super);
switch (ch) {
case 0x0a:
case 0x0d:
case KEY_ENTER:
case KEY_MOUSE:
case KEY_RECLICK:
if (selected < size) {
this->moving = !(this->moving);
Panel_setSelectionColor(super, this->moving ? PANEL_SELECTION_FOLLOW : PANEL_SELECTION_FOCUS);
ListItem* selectedItem = (ListItem*) Panel_getSelected(super);
if (selectedItem)
selectedItem->moving = this->moving;
result = HANDLED;
}
break;
case KEY_UP:
if (!this->moving)
break;
/* else fallthrough */
case KEY_F(7):
case '[':
case '-':
if (selected < size)
Panel_moveSelectedUp(super);
result = HANDLED;
break;
case KEY_DOWN:
if (!this->moving)
break;
/* else fallthrough */
case KEY_F(8):
case ']':
case '+':
if (selected < size - 1)
Panel_moveSelectedDown(super);
result = HANDLED;
break;
case KEY_F(9):
case KEY_DC:
case KEY_DEL_MAC:
if (size > 1 && selected < size)
Panel_remove(super, selected);
result = HANDLED;
break;
default:
if (0 < ch && ch < 255 && isgraph((unsigned char)ch))
result = Panel_selectByTyping(super, ch);
if (result == BREAK_LOOP)
result = IGNORED;
break;
}
if (result == HANDLED)
ColumnsPanel_update(super);
return result;
}
const PanelClass ColumnsPanel_class = {
.super = {
.extends = Class(Panel),
.delete = ColumnsPanel_delete
},
.eventHandler = ColumnsPanel_eventHandler
};
static void ColumnsPanel_add(Panel* super, unsigned int key, Hashtable* columns) {
const char* name;
if (key < LAST_PROCESSFIELD) {
name = Process_fields[key].name;
} else {
const DynamicColumn* column = Hashtable_get(columns, key);
assert(column);
if (!column) {
name = NULL;
} else {
/* heading preferred here but name is always available */
name = column->heading ? column->heading : column->name;
}
}
if (name == NULL)
name = "- ";
Panel_add(super, (Object*) ListItem_new(name, key));
}
void ColumnsPanel_fill(ColumnsPanel* this, ScreenSettings* ss, Hashtable* columns) {
Panel* super = &this->super;
Panel_prune(super);
for (const RowField* fields = ss->fields; *fields; fields++)
ColumnsPanel_add(super, *fields, columns);
this->ss = ss;
}
ColumnsPanel* ColumnsPanel_new(ScreenSettings* ss, Hashtable* columns, bool* changed) {
ColumnsPanel* this = AllocThis(ColumnsPanel);
Panel* super = &this->super;
FunctionBar* fuBar = FunctionBar_new(ColumnsFunctions, NULL, NULL);
Panel_init(super, 1, 1, 1, 1, Class(ListItem), true, fuBar);
this->ss = ss;
this->changed = changed;
this->moving = false;
Panel_setHeader(super, "Active Columns");
ColumnsPanel_fill(this, ss, columns);
return this;
}
void ColumnsPanel_update(Panel* super) {
ColumnsPanel* this = (ColumnsPanel*) super;
int size = Panel_size(super);
*(this->changed) = true;
this->ss->fields = xRealloc(this->ss->fields, sizeof(ProcessField) * (size + 1));
this->ss->flags = 0;
for (int i = 0; i < size; i++) {
int key = ((ListItem*) Panel_get(super, i))->key;
this->ss->fields[i] = key;
if (key < LAST_PROCESSFIELD)
this->ss->flags |= Process_fields[key].flags;
}
this->ss->fields[size] = 0;
}
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