htop/CategoriesPanel.c
Hisham Muhammad 72ba20fa5f Introduce screen tabs
This is a forward port (by nathans) of Hisham's original code.
2021-12-07 17:04:49 +11:00

170 lines
5.6 KiB
C

/*
htop - CategoriesPanel.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 "CategoriesPanel.h"
#include <ctype.h>
#include <stdbool.h>
#include <stdlib.h>
#include "AvailableColumnsPanel.h"
#include "AvailableMetersPanel.h"
#include "ColorsPanel.h"
#include "DisplayOptionsPanel.h"
#include "FunctionBar.h"
#include "Header.h"
#include "HeaderLayout.h"
#include "HeaderOptionsPanel.h"
#include "ListItem.h"
#include "Macros.h"
#include "MetersPanel.h"
#include "Object.h"
#include "ProvideCurses.h"
#include "ScreensPanel.h"
#include "Vector.h"
#include "XUtils.h"
static const char* const CategoriesFunctions[] = {" ", " ", " ", " ", " ", " ", " ", " ", " ", "Done ", NULL};
static void CategoriesPanel_delete(Object* object) {
Panel* super = (Panel*) object;
CategoriesPanel* this = (CategoriesPanel*) object;
Panel_done(super);
free(this);
}
static void CategoriesPanel_makeMetersPage(CategoriesPanel* this) {
size_t columns = HeaderLayout_getColumns(this->scr->header->headerLayout);
MetersPanel** meterPanels = xMallocArray(columns, sizeof(MetersPanel*));
for (size_t i = 0; i < columns; i++) {
char titleBuffer[32];
xSnprintf(titleBuffer, sizeof(titleBuffer), "Column %zu", i + 1);
meterPanels[i] = MetersPanel_new(this->settings, titleBuffer, this->header->columns[i], this->scr);
if (i != 0) {
meterPanels[i]->leftNeighbor = meterPanels[i - 1];
meterPanels[i - 1]->rightNeighbor = meterPanels[i];
}
ScreenManager_add(this->scr, (Panel*) meterPanels[i], 20);
}
Panel* availableMeters = (Panel*) AvailableMetersPanel_new(this->settings, this->header, columns, meterPanels, this->scr, this->pl);
ScreenManager_add(this->scr, availableMeters, -1);
}
static void CategoriesPanel_makeDisplayOptionsPage(CategoriesPanel* this) {
Panel* displayOptions = (Panel*) DisplayOptionsPanel_new(this->settings, this->scr);
ScreenManager_add(this->scr, displayOptions, -1);
}
static void CategoriesPanel_makeColorsPage(CategoriesPanel* this) {
Panel* colors = (Panel*) ColorsPanel_new(this->settings);
ScreenManager_add(this->scr, colors, -1);
}
static void CategoriesPanel_makeScreensPage(CategoriesPanel* this) {
Panel* screens = (Panel*) ScreensPanel_new(this->settings);
Panel* columns = (Panel*) ((ScreensPanel*)screens)->columns;
Panel* availableColumns = (Panel*) AvailableColumnsPanel_new(columns, this->settings->dynamicColumns);
ScreenManager_add(this->scr, screens, 20);
ScreenManager_add(this->scr, columns, 20);
ScreenManager_add(this->scr, availableColumns, -1);
}
static void CategoriesPanel_makeHeaderOptionsPage(CategoriesPanel* this) {
Panel* colors = (Panel*) HeaderOptionsPanel_new(this->settings, this->scr);
ScreenManager_add(this->scr, colors, -1);
}
typedef void (* CategoriesPanel_makePageFunc)(CategoriesPanel* ref);
typedef struct CategoriesPanelPage_ {
const char* name;
CategoriesPanel_makePageFunc ctor;
} CategoriesPanelPage;
static const CategoriesPanelPage categoriesPanelPages[] = {
{ .name = "Display options", .ctor = CategoriesPanel_makeDisplayOptionsPage },
{ .name = "Header layout", .ctor = CategoriesPanel_makeHeaderOptionsPage },
{ .name = "Meters", .ctor = CategoriesPanel_makeMetersPage },
{ .name = "Screens", .ctor = CategoriesPanel_makeScreensPage },
{ .name = "Colors", .ctor = CategoriesPanel_makeColorsPage },
};
static HandlerResult CategoriesPanel_eventHandler(Panel* super, int ch) {
CategoriesPanel* this = (CategoriesPanel*) super;
HandlerResult result = IGNORED;
int selected = Panel_getSelectedIndex(super);
switch (ch) {
case EVENT_SET_SELECTED:
result = HANDLED;
break;
case KEY_UP:
case KEY_CTRL('P'):
case KEY_DOWN:
case KEY_CTRL('N'):
case KEY_NPAGE:
case KEY_PPAGE:
case KEY_HOME:
case KEY_END: {
int previous = selected;
Panel_onKey(super, ch);
selected = Panel_getSelectedIndex(super);
if (previous != 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) {
int size = ScreenManager_size(this->scr);
for (int i = 1; i < size; i++)
ScreenManager_remove(this->scr, 1);
if (selected >= 0 && (size_t)selected < ARRAYSIZE(categoriesPanelPages)) {
categoriesPanelPages[selected].ctor(this);
}
}
return result;
}
const PanelClass CategoriesPanel_class = {
.super = {
.extends = Class(Panel),
.delete = CategoriesPanel_delete
},
.eventHandler = CategoriesPanel_eventHandler
};
CategoriesPanel* CategoriesPanel_new(ScreenManager* scr, Settings* settings, Header* header, ProcessList* pl) {
CategoriesPanel* this = AllocThis(CategoriesPanel);
Panel* super = (Panel*) this;
FunctionBar* fuBar = FunctionBar_new(CategoriesFunctions, NULL, NULL);
Panel_init(super, 1, 1, 1, 1, Class(ListItem), true, fuBar);
this->scr = scr;
this->settings = settings;
this->header = header;
this->pl = pl;
Panel_setHeader(super, "Categories");
for (size_t i = 0; i < ARRAYSIZE(categoriesPanelPages); i++)
Panel_add(super, (Object*) ListItem_new(categoriesPanelPages[i].name, 0));
ScreenManager_add(scr, super, 16);
categoriesPanelPages[0].ctor(this);
return this;
}