DOS/V Power Report 1999 October/VPR9910A.BIN/OLS/unrar32005/unrar32005.lzh/src/dialog.cxx

C/C++ Source or Header | 1998-04-03 | 6KB | 226 lines

/*
 *   Copyright (c) 1998 T. Kamei ([e-mail])
 *
 *   Permission to use, copy, modify, and distribute this software
 * and its documentation for any purpose is hereby granted provided
 * that the above copyright notice and this permission notice appear
 * in all copies of the software and related documentation.
 *
 *                          NO WARRANTY
 *
 *   THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY WARRANTIES;
 * WITHOUT EVEN THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
 * FOR A PARTICULAR PURPOSE.
 */

#include <windows.h>
#include <stdio.h>
#include <commctrl.h>
#include "comm-arc.h"
#include "util.h"
#include "dialog.h"

static void
center_window (HWND hwnd)
{
  HWND owner = GetWindow (hwnd, GW_OWNER);
  if (!owner)
    owner = GetParent (hwnd);
  if (!owner)
    owner = GetDesktopWindow ();

  RECT dr, or;
  GetWindowRect (hwnd, &dr);
  GetWindowRect (owner, &or);

  LONG left = (or.left + (or.right - or.left) / 3
               - (dr.right - dr.left) / 3);
  LONG top = (or.top + (or.bottom - or.top) / 3
              - (dr.bottom - dr.top) / 3);

  RECT work;
  SystemParametersInfo (SPI_GETWORKAREA, 0, &work, 0);

  left = min (max (left, work.left), work.right - (dr.right - dr.left));
  top = min (max (top, work.top), work.bottom - (dr.bottom - dr.top));

  SetWindowPos (hwnd, 0, left, top, 0, 0,
                SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE);
}

static void
set_size (HWND hwnd, int id, long size)
{
  char buf[32];
  sprintf (buf, "%d bytes", size);
  SetDlgItemText (hwnd, id, buf);
}

static void
set_date (HWND hwnd, int id, DWORD date)
{
  char buf[32];
  sprintf (buf, "%d/%02d/%02d %02d:%02d:%02d",
           (date >> 25) + 1980,
           (date >> 21) & 15,
           (date >> 16) & 31,
           (date >> 11) & 31,
           (date >> 5) & 63,
           (date & 31) * 2);
  SetDlgItemText (hwnd, id, buf);
}

static BOOL CALLBACK
replace_dlgproc (HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
{
  switch (msg)
    {
    case WM_INITDIALOG:
      {
        center_window (hwnd);
        replace_param *rp = (replace_param *)lparam;
        SetDlgItemText (hwnd, IDC_OLDNAME, rp->old_name);
        set_size (hwnd, IDC_OLDSIZE, rp->old_size);
        set_date (hwnd, IDC_OLDDATE, rp->old_date);
        SetDlgItemText (hwnd, IDC_NEWNAME, rp->new_name);
        set_size (hwnd, IDC_NEWSIZE, rp->new_size);
        set_date (hwnd, IDC_NEWDATE, rp->new_date);
        SendMessage (GetDlgItem (hwnd, IDC_Q), STM_SETICON,
                     WPARAM (LoadIcon (0, IDI_QUESTION)), 0);
        return 1;
      }
    case WM_COMMAND:
      switch (LOWORD (wparam))
        {
        case IDYES:
        case IDNO:
        case IDC_ALL:
        case IDCANCEL:
          EndDialog (hwnd, LOWORD (wparam));
          return 1;
        }
      break;
    }
  return 0;
}

int
replace_dialog (HWND hwnd, const replace_param &rp)
{
  return DialogBoxParam (lstate.hinst, MAKEINTRESOURCE (IDD_REPLACE),
                         hwnd, replace_dlgproc, LPARAM (&rp));
}

void
doevents ()
{
  MSG msg;
  while (PeekMessage (&msg, 0, 0, 0, PM_REMOVE))
    {
      TranslateMessage (&msg);
      DispatchMessage (&msg);
    }
}

static BOOL CALLBACK
progress_dlgproc (HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
{
  progress_dlg *p;
  if (msg == WM_INITDIALOG)
    {
      SetWindowLong (hwnd, DWL_USER, lparam);
      p = (progress_dlg *)lparam;
      p->hwnd = hwnd;
    }
  else
    p = (progress_dlg *)GetWindowLong (hwnd, DWL_USER);
  return p ? p->wndproc (msg, wparam, lparam) : 0;
}

BOOL
progress_dlg::wndproc (UINT msg, WPARAM wparam, LPARAM lparam)
{
  switch (msg)
    {
    case WM_INITDIALOG:
      center_window (hwnd);
      return 1;

    case WM_COMMAND:
      if (LOWORD (wparam) == IDCANCEL)
        {
          DestroyWindow (hwnd);
          hwnd = 0;
          return 1;
        }
      break;
    }
  return 0;
}

int
progress_dlg::create (HWND parent)
{
  if (!CreateDialogParam (lstate.hinst, MAKEINTRESOURCE (IDD_INPROG),
                          parent, progress_dlgproc, LPARAM (this)))
    return 0;
  ShowWindow (hwnd, SW_SHOW);
  doevents ();
  return 1;
}

int
progress_dlg::init (const char *path, int nmax) const
{
  doevents ();
  if (!hwnd)
    return 0;
  SendDlgItemMessage (hwnd, IDC_PROG, PBM_SETRANGE, 0, MAKELPARAM (0, nmax));
  SendDlgItemMessage (hwnd, IDC_PROG, PBM_SETPOS, 0, 0);
  SetDlgItemText (hwnd, IDC_NAME, path);
  return 1;
}

int
progress_dlg::update (int n) const
{
  doevents ();
  if (!hwnd)
    return 0;
  SendDlgItemMessage (hwnd, IDC_PROG, PBM_SETPOS, n, 0);
  return 1;
}

static char passwd[128];

static BOOL CALLBACK
askpass_dlgproc (HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
{
  switch (msg)
    {
    case WM_INITDIALOG:
      center_window (hwnd);
      return 1;

    case WM_COMMAND:
      switch (LOWORD (wparam))
        {
        case IDOK:
          GetDlgItemText (hwnd, IDC_PASSWD, passwd, sizeof passwd - 1);
          /* fall thru... */
        case IDCANCEL:
          EndDialog (hwnd, LOWORD (wparam));
          return 1;
        }
      break;
    }
  return 0;
}

char *
askpass_dialog (HWND hwnd)
{
  return DialogBox (lstate.hinst, MAKEINTRESOURCE (IDD_ASKPASSWD),
                    hwnd, askpass_dlgproc) == IDOK ? passwd : 0;
}