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* Implementation of GPTData class derivative with curses-based text-mode
* interaction
* Copyright (C) 2011-2013 Roderick W. Smith
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#include <iostream>
#include <string>
#include "gptpart.h"
#include "gpt.h"
#ifndef __GPT_CURSES
#define __GPT_CURSES
using namespace std;
struct MenuItem {
int key; // Keyboard shortcut
string name; // Item name; 8 characters
string desc; // Description
static struct MenuItem menuMain[] = {
{ 'a', "Align ", "Set partition alignment policy" },
{ 'b', "Backup", "Back up the partition table" },
{ 'd', "Delete", "Delete the current partition" },
{ 'h', " Help ", "Print help screen" },
{ 'i', " Info ", "Display information about the partition" },
{ 'l', " Load ", "Load partition table backup from file" },
{ 'm', " naMe ", "Change the partition's name" },
{ 'n', " New ", "Create new partition from free space" },
{ 'q', " Quit ", "Quit program without writing partition table" },
{ 't', " Type ", "Change the filesystem type code GUID" },
{ 'v', "Verify", "Verify the integrity of the disk's data structures" },
{ 'w', "Write ", "Write partition table to disk (this might destroy data)" },
{ 0, "", "" }
#define EMPTY_SPACE_OPTIONS "abhlnqvw"
#define PARTITION_OPTIONS "abdhilmqtvw"
// Constants for how to highlight a selected menu item
#define USE_CURSES 1
#define USE_ARROW 2
// A "Space" is a partition or an unallocated chunk of disk space, maintained
// in a doubly-linked-list data structure to facilitate creating displays of
// partitions and unallocated chunks of space on the disk in the main
// cgdisk partition list. This list MUST be correctly maintained and in order,
// and the numSpaces variable in the main GPTDataCurses class must specify
// how many Spaces are in the main linked list of Spaces.
struct Space {
uint64_t firstLBA;
uint64_t lastLBA;
GPTPart *origPart;
int partNum;
Space *nextSpace;
Space *prevSpace;
class GPTDataCurses : public GPTData {
static int numInstances;
GPTPart emptySpace;
Space *firstSpace;
Space *lastSpace;
Space *currentSpace;
int currentSpaceNum;
string whichOptions;
char currentKey;
int numSpaces;
int displayType;
// Functions relating to Spaces data structures
void EmptySpaces(void);
int MakeSpacesFromParts(void);
void AddEmptySpace(uint64_t firstLBA, uint64_t lastLBA);
int AddEmptySpaces(void);
void UnlinkSpace(Space *theSpace);
void LinkToEnd(Space *theSpace);
void SortSpaces(void);
void IdentifySpaces(void);
// Data display functions
Space* ShowSpace(int spaceNum, int lineNum);
int DisplayParts(int selected);
// Functions corresponding to main menu items
void DeletePartition(int partNum);
void ShowInfo(int partNum);
void ChangeName(int partNum);
void ChangeType(int partNum);
void SetAlignment(void);
void Verify(void);
void MakeNewPart(void);
void SaveData(void);
void Backup(void);
void LoadBackup(void);
void ShowHelp(void);
// User input and menuing functions
void SetDisplayType(int dt) {displayType = dt;}
void ChangeSpaceSelection(int delta);
void MoveSelection(int delta);
void DisplayOptions(char selectedKey);
void AcceptInput();
int Dispatch(char operation);
void DrawMenu(void);
int MainMenu(void);
}; // class GPTDataCurses
// Non-class support functions (mostly to do simple curses stuff)....
void ClearLine(int lineNum);
void ClearBottom(void);
void PromptToContinue(void);
void Report(string theText);
void ShowTypes(void);