/*
 * uisnapshot.c - Snapshot dialog for the Xaw widget set.
 *
 * Written by
 *  Ettore Perazzoli <ettore@comm2000.it>
 *
 * This file is part of VICE, the Versatile Commodore Emulator.
 * See README for copyright notice.
 *
 *  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
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  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., 59 Temple Place, Suite 330, Boston, MA
 *  02111-1307  USA.
 *
 */

#include "vice.h"

#include <stdlib.h>

#include <X11/Xlib.h>
#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include <X11/Xaw/Box.h>
#include <X11/Xaw/Command.h>
#include <X11/Xaw/Form.h>
#include <X11/Xaw/MenuButton.h>
#include <X11/Xaw/Paned.h>
#include <X11/Xaw/SimpleMenu.h>
#include <X11/Xaw/SmeBSB.h>
#include <X11/Xaw/Toggle.h>

#ifndef ENABLE_TEXTFIELD
#include <X11/Xaw/AsciiText.h>
#else
#include "widgets/TextField.h"
#endif

#include "lib.h"
#include "machine.h"
#include "ui.h"
#include "uiapi.h"
#include "uiarch.h"
#include "uilib.h"
#include "uisnapshot.h"
#include "util.h"

static Widget snapshot_dialog;
static Widget snapshot_dialog_pane;
static Widget file_name_form;
static Widget file_name_label;
static Widget file_name_field;
static Widget browse_button;
static Widget options_form;
static Widget options_label;
static Widget options_filling_box_left;
static Widget save_roms_on_button, save_roms_off_button;
static Widget save_roms_label;
static Widget save_disk_off_button, save_disk_button;
static Widget save_disk_label;
static Widget button_box;
static Widget save_button;
static Widget cancel_button;

#define FILL_BOX_WIDTH        10
#define OPTION_LABELS_WIDTH   50
#define OPTION_LABELS_JUSTIFY XtJustifyLeft

static UI_CALLBACK(browse_callback)
{
    ui_button_t button;
    char *filename;
    uilib_file_filter_enum_t filter = UILIB_FILTER_ALL;

    filename = ui_select_file(_("Save snapshot image"), NULL, False, NULL, &filter, 1, &button, 0, NULL, UI_FC_LOAD);

    if (button == UI_BUTTON_OK) {
        XtVaSetValues(file_name_field, XtNstring, filename, NULL);
    }

    lib_free(filename);
}

static UI_CALLBACK(cancel_callback)
{
    ui_popdown(snapshot_dialog);
}

static UI_CALLBACK(save_callback)
{
    String name;
    Boolean save_roms;
    Boolean save_disks;
    char *filename;
    
    ui_popdown(snapshot_dialog);

    XtVaGetValues(save_roms_on_button, XtNstate, &save_roms, NULL);
    XtVaGetValues(save_disk_button, XtNstate, &save_disks, NULL);
    XtVaGetValues(file_name_field, XtNstring, &name, NULL);

    filename = lib_stralloc(name);
    util_add_extension(&filename, "vsf");
    
    if (machine_write_snapshot(filename, save_roms, save_disks, 0) < 0) {
        ui_error(_("Cannot write snapshot file\n`%s'\n"), filename);
    }

    lib_free(filename);
}

static void build_snapshot_dialog(void)
{
    char *button_title;
    char *filename = util_concat(_("File name"), ":", NULL);
    char *save_images = util_concat(_("Save currently attached disk images"), ":", NULL);
    char *save_roms = util_concat(_("Save currently loaded ROM images"), ":", NULL);
    char *snapshot_options = util_concat(_("Snapshot options"), ":", NULL);

    if (snapshot_dialog != NULL) {
        return;
    }

    snapshot_dialog = ui_create_transient_shell(_ui_top_level, "snapshotDialog");

    snapshot_dialog_pane = XtVaCreateManagedWidget("snapshotDialogPane",
                                                   panedWidgetClass, snapshot_dialog,
                                                   NULL);
    
    file_name_form = XtVaCreateManagedWidget("fileNameForm",
                                             formWidgetClass, snapshot_dialog_pane,
                                             XtNshowGrip, False,
                                             NULL);
    
    file_name_label = XtVaCreateManagedWidget("fileNameLabel",
                                              labelWidgetClass, file_name_form,
                                              XtNjustify, XtJustifyLeft,
                                              XtNlabel, filename,
                                              XtNborderWidth, 0,
                                              NULL);
    lib_free(filename);

#ifndef ENABLE_TEXTFIELD
    file_name_field = XtVaCreateManagedWidget("fileNameField",
                                              asciiTextWidgetClass, file_name_form,
                                              XtNfromHoriz, file_name_label,
                                              XtNwidth, 200,
                                              XtNtype, XawAsciiString,
                                              XtNeditType, XawtextEdit,
                                              NULL);
#else
    file_name_field = XtVaCreateManagedWidget("fileNameField",
                                              textfieldWidgetClass, file_name_form,
                                              XtNfromHoriz, file_name_label,
                                              XtNwidth, 200,
                                              XtNstring, "",         /* Otherwise, it does not work correctly.  */
                                              NULL);
#endif

    button_title = util_concat(_("Browse"), "...", NULL);
    browse_button = XtVaCreateManagedWidget("browseButton",
                                            commandWidgetClass, file_name_form,
                                            XtNfromHoriz, file_name_field,
                                            XtNlabel, button_title,
                                            NULL);
    lib_free(button_title);
    XtAddCallback(browse_button, XtNcallback, browse_callback, NULL);

    options_form = XtVaCreateManagedWidget("optionsForm",
                                           formWidgetClass, snapshot_dialog_pane,
                                           XtNskipAdjust, True,
                                           NULL);

    options_label = XtVaCreateManagedWidget("optionsLabel",
                                            labelWidgetClass, options_form,
                                            XtNborderWidth, 0,
                                            XtNjustify, XtJustifyLeft,
                                            XtNlabel, snapshot_options,
                                            XtNleft, XawChainLeft,
                                            NULL);
    lib_free(snapshot_options);

    options_filling_box_left = XtVaCreateManagedWidget("fillingBoxLeft",
                                                       boxWidgetClass, options_form,
                                                       XtNborderWidth, 0,
                                                       XtNleft, XawChainLeft,
                                                       XtNright, XawChainLeft,
                                                       XtNfromVert, options_label,
                                                       XtNwidth, FILL_BOX_WIDTH,
                                                       NULL);

    save_disk_label = XtVaCreateManagedWidget("saveDiskLabel",
                                              labelWidgetClass, options_form,
                                              XtNborderWidth, 0,
                                              XtNfromHoriz, options_filling_box_left,
                                              XtNfromVert, options_label,
                                              XtNjustify, OPTION_LABELS_JUSTIFY,
                                              XtNwidth, OPTION_LABELS_WIDTH,
                                              XtNleft, XawChainLeft,
                                              XtNright, XawChainRight,
                                              XtNheight, 20,
                                              XtNlabel, save_images,
                                              NULL);
    lib_free(save_images);

    save_disk_off_button = XtVaCreateManagedWidget("saveDiskOffButton",
                                                   toggleWidgetClass, options_form,
                                                   XtNfromHoriz, save_disk_label,
                                                   XtNfromVert, browse_button,
                                                   XtNwidth, 40,
                                                   XtNheight, 20,
                                                   XtNright, XtChainRight,
                                                   XtNleft, XtChainRight,
                                                   XtNlabel, _("Off"),
                                                   NULL);

    save_disk_button = XtVaCreateManagedWidget("saveDiskButton",
                                               toggleWidgetClass, options_form,
                                               XtNfromHoriz, save_disk_off_button,
                                               XtNfromVert, browse_button,
                                               XtNwidth, 40,
                                               XtNheight, 20,
                                               XtNright, XtChainRight,
                                               XtNleft, XtChainRight,
                                               XtNlabel, _("On"),
                                               XtNradioGroup, save_disk_off_button,
                                               NULL);

    save_roms_label = XtVaCreateManagedWidget("saveRomsLabel",
                                              labelWidgetClass, options_form,
                                              XtNborderWidth, 0,
                                              XtNfromHoriz, options_filling_box_left,
                                              XtNfromVert, save_disk_label,
                                              XtNjustify, OPTION_LABELS_JUSTIFY,
                                              XtNwidth, OPTION_LABELS_WIDTH,
                                              XtNheight, 20,
                                              XtNleft, XawChainLeft,
                                              XtNright, XawChainRight,
                                              XtNlabel, save_roms,
                                              NULL);
    lib_free(save_roms);

    save_roms_off_button = XtVaCreateManagedWidget("saveRomsOffButton",
                                                   toggleWidgetClass, options_form,
                                                   XtNfromHoriz, save_roms_label,
                                                   XtNfromVert, save_disk_off_button,
                                                   XtNwidth, 40,
                                                   XtNheight, 20,
                                                   XtNright, XtChainRight,
                                                   XtNleft, XtChainRight,
                                                   XtNlabel, _("Off"),
                                                   NULL);

    save_roms_on_button = XtVaCreateManagedWidget("saveRomsOffButton",
                                                  toggleWidgetClass, options_form,
                                                  XtNfromHoriz, save_roms_off_button,
                                                  XtNfromVert, save_disk_button,
                                                  XtNwidth, 40,
                                                  XtNheight, 20,
                                                  XtNright, XtChainRight,
                                                  XtNleft, XtChainRight,
                                                  XtNlabel, _("On"),
                                                  XtNradioGroup, save_roms_off_button,
                                                  NULL);

    button_box = XtVaCreateManagedWidget("buttonBox",
                                         boxWidgetClass, snapshot_dialog_pane,
                                         XtNshowGrip, False,
                                         NULL);

    save_button = XtVaCreateManagedWidget("saveButton",
                                          commandWidgetClass, button_box,
                                          XtNlabel, _("Save"),
                                          NULL);
    XtAddCallback(save_button, XtNcallback, save_callback, NULL);
    
    cancel_button = XtVaCreateManagedWidget("cancelButton",
                                            commandWidgetClass, button_box,
                                            XtNlabel, _("Cancel"),
                                            NULL);
    XtAddCallback(cancel_button, XtNcallback, cancel_callback, NULL);

    XtVaSetValues(save_roms_off_button, XtNstate, True, NULL);
    XtVaSetValues(save_disk_off_button, XtNstate, True, NULL);

    XtSetKeyboardFocus(snapshot_dialog_pane, file_name_field);
}

void ui_snapshot_dialog(void)
{
    build_snapshot_dialog();
    ui_popup(snapshot_dialog, _("Save snapshot image"), True);
}
