vfdguiopen.c

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/*
    vfdguiopen.c

    Virtual Floppy Drive for Windows
    Driver control library
    Open image GUI utility function

    Copyright (c) 2003-2005 Ken Kato
*/

#ifdef __cplusplus
#pragma message(__FILE__": Compiled as C++ for testing purpose.")
#endif  // __cplusplus

#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#ifdef _MSC_VER
#pragma warning(push,3)
#endif
#include <commdlg.h>
#ifdef _MSC_VER
#pragma warning(pop)
#endif

#include "vfdtypes.h"
#include "vfdapi.h"
#include "vfdlib.h"
#ifndef __REACTOS__
#include "vfdmsg.h"
#else
#include "vfdmsg_lib.h"
#endif
#include "vfdguirc.h"

//
//  String constants
//

#define FALLBACK_IMAGE_FILTER   \
    "Common image files (bin,dat,fdd,flp,ima,img,vfd)\0" \
    "*.bin;*.dat;*.fdd;*.flp;*.ima;*.img;*.vfd\0" \
    "Zip compressed image (imz,zip)\0*.imz;*.zip\0" \
    "All files (*.*)\0*.*\0"

#define FALLBACK_IMAGE_TITLE    "Open Virtual Floppy Image"

//
//  local functions
//
#ifndef __REACTOS__
static INT CALLBACK OpenDialogProc(
#else
static INT_PTR CALLBACK OpenDialogProc(
#endif
    HWND            hDlg,
    UINT            uMsg,
    WPARAM          wParam,
    LPARAM          lParam);

static void OnInit(HWND hDlg, ULONG nDevice);
static void OnImage(HWND hDlg, HWND hEdit);
static void OnBrowse(HWND hDlg);
static void OnDiskType(HWND hDlg, HWND hRadio);
static void OnMediaType(HWND hDlg, HWND hCombo);
static void OnProtect(HWND hDlg, HWND hCheck);
static DWORD OnOK(HWND hDlg);

//
//  Show Open Image dialog box
//
DWORD WINAPI VfdGuiOpen(
    HWND            hParent,
    ULONG           nDevice)
{
    switch (DialogBoxParam(
        g_hDllModule,
        MAKEINTRESOURCE(IDD_OPENDIALOG),
        hParent,
        OpenDialogProc,
        nDevice))
    {
    case IDOK:
        return ERROR_SUCCESS;

    case IDCANCEL:
        return ERROR_CANCELLED;

    default:
        return GetLastError();
    }
}

//
// Open image dialog procedure
//
#ifndef __REACTOS__
INT CALLBACK OpenDialogProc(
#else
INT_PTR CALLBACK OpenDialogProc(
#endif
    HWND            hDlg,
    UINT            uMsg,
    WPARAM          wParam,
    LPARAM          lParam)
{
    switch (uMsg) {
    case WM_INITDIALOG:
        OnInit(hDlg, lParam);
        return TRUE;

    case WM_COMMAND:
        switch (wParam) {
        case MAKELONG(IDC_IMAGEFILE, EN_CHANGE):
            OnImage(hDlg, (HWND)lParam);
            return TRUE;

        case IDC_BROWSE:
            OnBrowse(hDlg);
            return TRUE;

        case IDC_DISKTYPE_FILE:
        case IDC_DISKTYPE_RAM:
            OnDiskType(hDlg, (HWND)lParam);
            return TRUE;

        case MAKELONG(IDC_MEDIATYPE, CBN_SELCHANGE):
            OnMediaType(hDlg, (HWND)lParam);
            return TRUE;

        case IDC_OPEN_PROTECTED:
            OnProtect(hDlg, (HWND)lParam);
            return TRUE;

        case IDOK:
            if (OnOK(hDlg) == ERROR_SUCCESS) {
                EndDialog(hDlg, IDOK);
            }
            return TRUE;

        case IDCANCEL:
            EndDialog(hDlg, IDCANCEL);
            return TRUE;
        }
        break;

    case WM_CONTEXTMENU:
        ShowContextMenu(hDlg, (HWND)wParam, lParam);
        break;

    case WM_HELP:
        {
            LPHELPINFO info = (LPHELPINFO)lParam;

            if (info->iContextType == HELPINFO_WINDOW) {
                ShowHelpWindow(hDlg, info->iCtrlId);
            }
        }
        return TRUE;
    }

    return FALSE;
}

//
//  Initialize the Open Image dialog
//
void OnInit(
    HWND            hDlg,
    ULONG           nDevice)
{
    VFD_MEDIA i;

    //  Store the device number

    SetWindowLong(hDlg, GWL_USERDATA, nDevice);

    //  Store default file size

    SetWindowLong(hDlg, DWL_USER, INVALID_FILE_SIZE);

    // Set dialog window title

    SetControlText(hDlg, 0, MSG_OPEN_TITLE);

    // Set control captions

    SetControlText(hDlg, IDC_IMAGEFILE_LABEL,   MSG_IMAGEFILE_ACCEL);
    SetControlText(hDlg, IDC_IMAGEDESC_LABEL,   MSG_DESCRIPTION_LABEL);
    SetControlText(hDlg, IDC_BROWSE,            MSG_BROWSE_BUTTON);
    SetControlText(hDlg, IDC_DISKTYPE_LABEL,    MSG_DISKTYPE_LABEL);
    SetControlText(hDlg, IDC_MEDIATYPE_LABEL,   MSG_MEDIATYPE_ACCEL);
    SetControlText(hDlg, IDC_OPEN_PROTECTED,    MSG_MENU_PROTECT);
    SetControlText(hDlg, IDOK,                  MSG_CREATE_BUTTON);
    SetControlText(hDlg, IDCANCEL,              MSG_CANCEL_BUTTON);

    //  select RAM disk as default

    CheckRadioButton(hDlg, IDC_DISKTYPE_FILE,
        IDC_DISKTYPE_RAM, IDC_DISKTYPE_RAM);

    //  setup media type combo list

    for (i = 1; i < VFD_MEDIA_MAX; i++) {
        SendDlgItemMessage(hDlg, IDC_MEDIATYPE,
            CB_ADDSTRING, 0, (LPARAM)VfdMediaTypeName(i));
    }

    //  select 1.44MB as the default

    SendDlgItemMessage(hDlg, IDC_MEDIATYPE, CB_SELECTSTRING,
        (WPARAM)-1, (LPARAM)VfdMediaTypeName(VFD_MEDIA_F3_1P4));

    //  set up other controls

    OnImage(hDlg, GetDlgItem(hDlg, IDC_IMAGEFILE));
}

//
//  Path is changed -- check if the file exists
//
void OnImage(
    HWND            hDlg,
    HWND            hEdit)
{
    CHAR            buf[MAX_PATH];
    DWORD           file_attr;
    ULONG           image_size;
    VFD_FILETYPE    file_type;
    VFD_MEDIA       media_type;

    DWORD           ret = ERROR_SUCCESS;

    //  Store default file size

    SetWindowLong(hDlg, DWL_USER, INVALID_FILE_SIZE);

    //  get currently selected media type

    media_type = (VFD_MEDIA)(SendDlgItemMessage(
        hDlg, IDC_MEDIATYPE, CB_GETCURSEL, 0, 0) + 1);

    //  clear hint and description text

    SetDlgItemText(hDlg, IDC_IMAGEFILE_DESC, NULL);
    SetDlgItemText(hDlg, IDC_IMAGEFILE_HINT, NULL);

    //  get file name and file information

    if (GetWindowText(hEdit, buf, sizeof(buf))) {

        ret = VfdCheckImageFile(
            buf, &file_attr, &file_type, &image_size);

        if (ret == ERROR_SUCCESS) {

            //  use media type from image size

            media_type = VfdLookupMedia(image_size);
        }
        else if (ret == ERROR_FILE_NOT_FOUND) {

            //  new file
            //  use the parent directory attributes

            PSTR p;

            if ((p = strrchr(buf, '\\')) != NULL) {
                *p = '\0';
            }

            file_attr   = GetFileAttributes(buf);

            if (file_attr == INVALID_FILE_ATTRIBUTES) {
                //  directory access error
                EnableWindow(GetDlgItem(hDlg, IDOK), FALSE);
                SetDlgItemText(hDlg, IDC_IMAGEFILE_DESC, SystemMessage(ret));
                return;
            }

            file_attr   &= ~(FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_DIRECTORY);
            image_size  = INVALID_FILE_SIZE;
            file_type   = VFD_FILETYPE_RAW;
        }
        else {
            //  file access error
            EnableWindow(GetDlgItem(hDlg, IDOK), FALSE);
            SetDlgItemText(hDlg, IDC_IMAGEFILE_DESC, SystemMessage(ret));
            return;
        }

        //  make file description text

        VfdMakeFileDesc(buf, sizeof(buf),
            file_type, image_size, file_attr);

        //  set file description

        SetDlgItemText(hDlg, IDC_IMAGEFILE_DESC, buf);
    }
    else {

        //  filename is empty - RAM disk

        file_attr   = 0;
        image_size  = INVALID_FILE_SIZE;
        file_type   = VFD_FILETYPE_NONE;

        SetDlgItemText(hDlg, IDC_IMAGEFILE_DESC, "RAM");
    }

    //  store the image size

    SetWindowLong(hDlg, DWL_USER, image_size);

    //  setup disktype controls

    if (file_type != VFD_FILETYPE_RAW ||
        (file_attr & (FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_COMPRESSED | FILE_ATTRIBUTE_ENCRYPTED))) {

        //  file cannot be opened directly -- RAM mode is forced

        CheckRadioButton(hDlg, IDC_DISKTYPE_FILE,
            IDC_DISKTYPE_RAM, IDC_DISKTYPE_RAM);

        EnableWindow(GetDlgItem(hDlg, IDC_DISKTYPE_FILE),   FALSE);
    }
    else {
        EnableWindow(GetDlgItem(hDlg, IDC_DISKTYPE_FILE),   TRUE);
    }

    //  set OK button text

    if (image_size == INVALID_FILE_SIZE) {
        //  file does not exist - OK button is "Create"

        SetControlText(hDlg, IDOK, MSG_CREATE_BUTTON);
    }
    else {
        //  file exists - OK button is "Open"

        SetControlText(hDlg, IDOK, MSG_OPEN_BUTTON);
    }

    //  select media type

    SendDlgItemMessage(hDlg, IDC_MEDIATYPE,
        CB_SETCURSEL, media_type - 1, 0);

    OnMediaType(hDlg, GetDlgItem(hDlg, IDC_MEDIATYPE));
}

//
//  Show open file dialog box
//
void OnBrowse(
    HWND            hDlg)
{
    OPENFILENAME    ofn;
    PSTR            title;
    PSTR            filter;
    CHAR            file[MAX_PATH];
    CHAR            dir[MAX_PATH];
    DWORD           len;

    //  prepare title and filter text

    title = ModuleMessage(MSG_OPEN_TITLE);

    filter = ModuleMessage(MSG_OPEN_FILTER);

    if (filter) {
        PSTR p = filter;

        do {
            if (*p == '|') {
                *p = '\0';
            }
        }
        while (*(++p));
    }

    //  get current file name from the control

    ZeroMemory(file, sizeof(file));
    ZeroMemory(dir, sizeof(dir));

    len = GetDlgItemText(hDlg, IDC_IMAGEFILE, file, sizeof(file));

    if (len && file[len - 1] == '\\') {
        strcpy(dir, file);
        ZeroMemory(file, sizeof(file));
    }

    // prepare OPENFILENAME structure

    ZeroMemory(&ofn, sizeof(ofn));

    ofn.lStructSize = IS_WINDOWS_NT() ?
        OPENFILENAME_SIZE_VERSION_400 : sizeof(ofn);

    ofn.hwndOwner   = hDlg;
    ofn.lpstrFilter = filter ? filter : FALLBACK_IMAGE_FILTER;
    ofn.lpstrFile   = file;
    ofn.nMaxFile    = sizeof(file);
    ofn.lpstrInitialDir = dir;
    ofn.lpstrTitle  = title ? title : FALLBACK_IMAGE_TITLE;
    ofn.Flags       = OFN_EXPLORER | OFN_ENABLESIZING | OFN_HIDEREADONLY | OFN_PATHMUSTEXIST;

    //  show the open file dialog box

    if (GetOpenFileName(&ofn)) {
        SetDlgItemText(hDlg, IDC_IMAGEFILE, file);
        SetFocus(GetDlgItem(hDlg, IDC_IMAGEFILE));
    }

    //  release text buffers

    if (filter) {
        LocalFree(filter);
    }

    if (title) {
        LocalFree(title);
    }
}

//
//  Disk type is changed
//
void OnDiskType(
    HWND            hDlg,
    HWND            hRadio)
{
    UNREFERENCED_PARAMETER(hDlg);
    UNREFERENCED_PARAMETER(hRadio);
}

//
//  Media type is changed
//
void OnMediaType(
    HWND            hDlg,
    HWND            hCombo)
{
    VFD_MEDIA       media_type;
    ULONG           media_size;
    ULONG           image_size;

    image_size = GetWindowLong(hDlg, DWL_USER);

    if (image_size == INVALID_FILE_SIZE) {
        return;
    }

    media_type = (VFD_MEDIA)(SendMessage(
        hCombo, CB_GETCURSEL, 0, 0) + 1);

    if (media_type == 0) {
        return;
    }

    media_size = VfdGetMediaSize(media_type);

    if (media_size > image_size) {
        //  selected media is too large
        SetControlText(hDlg, IDC_IMAGEFILE_HINT, MSG_FILE_TOO_SMALL);
        EnableWindow(GetDlgItem(hDlg, IDOK), FALSE);
        return;
    }
    else if (media_size < image_size) {
        SetControlText(hDlg, IDC_IMAGEFILE_HINT, MSG_SIZE_MISMATCH);
    }
    else {
        SetDlgItemText(hDlg, IDC_IMAGEFILE_HINT, NULL);
    }

    EnableWindow(GetDlgItem(hDlg, IDOK), TRUE);
}

//
//  Write Protect check box is clicked
//
void OnProtect(
    HWND            hDlg,
    HWND            hCheck)
{
    UNREFERENCED_PARAMETER(hDlg);
    UNREFERENCED_PARAMETER(hCheck);
}

//
//  Create / open an image
//
DWORD OnOK(
    HWND            hDlg)
{
    CHAR            file_name[MAX_PATH];
    VFD_DISKTYPE    disk_type;
    VFD_MEDIA       media_type;
    VFD_FLAGS       image_flags;
    HANDLE          hDevice;
    DWORD           ret;

    //  get the disk type

    if (IsDlgButtonChecked(hDlg, IDC_DISKTYPE_FILE) == BST_CHECKED) {
        disk_type = VFD_DISKTYPE_FILE;
    }
    else {
        disk_type = VFD_DISKTYPE_RAM;
    }

    //  get the media type

    media_type = (VFD_MEDIA)(SendDlgItemMessage(
        hDlg, IDC_MEDIATYPE, CB_GETCURSEL, 0, 0) + 1);

    //  get the protect flag

    if (IsDlgButtonChecked(hDlg, IDC_OPEN_PROTECTED) == BST_CHECKED) {
        image_flags = VFD_FLAG_WRITE_PROTECTED;
    }
    else {
        image_flags = 0;
    }

    //  get the image name to create

    if (GetDlgItemText(hDlg, IDC_IMAGEFILE, file_name, sizeof(file_name))) {

        //  file is specified

        if (GetWindowLong(hDlg, DWL_USER) == INVALID_FILE_SIZE) {

            //  create a new image

            ret = VfdCreateImageFile(
                file_name, media_type, VFD_FILETYPE_RAW, FALSE);

            if (ret != ERROR_SUCCESS) {
                goto exit_func;
            }
        }
    }

    //  open the image

    hDevice = VfdOpenDevice(GetWindowLong(hDlg, GWL_USERDATA));

    if (hDevice == INVALID_HANDLE_VALUE) {
        ret = GetLastError();
        goto exit_func;
    }

    ret = VfdOpenImage(
        hDevice, file_name, disk_type, media_type, image_flags);

    CloseHandle(hDevice);

exit_func:
    if (ret != ERROR_SUCCESS) {

        //  show error message

        MessageBox(hDlg, SystemMessage(ret),
            VFD_MSGBOX_TITLE, MB_ICONSTOP);
    }

    return ret;
}