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//{{{  Banner                           

//============================================================================

//

//     dialog.cxx

//

//     Implementation of the CdlDialog class

//

//============================================================================

//####COPYRIGHTBEGIN####

//                                                                          

// ----------------------------------------------------------------------------

// Copyright (C) 2002 Bart Veer

// Copyright (C) 1999, 2000 Red Hat, Inc.

//

// This file is part of the eCos host tools.

//

// 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.

//

// ----------------------------------------------------------------------------

//                                                                          

//####COPYRIGHTEND####

//============================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):   bartv

// Contact(s):  bartv

// Date:        1999/03/01

// Version:     0.01

//

//####DESCRIPTIONEND####

//============================================================================

//}}}

//{{{  #include's                       

// ----------------------------------------------------------------------------

#include "cdlconfig.h"

// Get the infrastructure types, assertions, tracing and similar

// facilities.

#include <cyg/infra/cyg_ass.h>

#include <cyg/infra/cyg_trac.h>

// <cdlcore.hxx> defines everything implemented in this module.

// It implicitly supplies <string>, <vector> and <map> because

// the class definitions rely on these headers.

#include <cdlcore.hxx>

//}}}

//{{{  Class statics                    

// ----------------------------------------------------------------------------

CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlDialogBody);

// The application code can specify whether or not it supports custom

// dialogs. This affects the internals of e.g.

// CdlValuable::get_widget_hint(). For now err on the side of caution.

bool CdlDialogBody::dialogs_enabled     = false;

void

CdlDialogBody::disable_dialogs()

{

    CYG_REPORT_FUNCNAME("CdlDialog::disable_dialogs");

    dialogs_enabled = false;

    CYG_REPORT_RETURN();

}

void

CdlDialogBody::enable_dialogs()

{

    CYG_REPORT_FUNCNAME("CdlDialog::enable_dialogs");

    dialogs_enabled = true;

    CYG_REPORT_RETURN();

}

bool

CdlDialogBody::dialogs_are_enabled()

{

    CYG_REPORT_FUNCNAMETYPE("CdlDialog::dialogs_are_enabled", "result %d");

    bool result = dialogs_enabled;

    CYG_REPORT_RETVAL(result);

    return result;

}

//}}}

//{{{  Constructor                      

// ----------------------------------------------------------------------------

// Constructor. The real work is actually done in the parse routine.

//

// There is no data associated with a custom dialog object.

CdlDialogBody::CdlDialogBody(std::string name_arg)

    : CdlNodeBody(name_arg),

      CdlParentableBody(),

      CdlUserVisibleBody()

{

    CYG_REPORT_FUNCNAME("CdlDialogBody:: constructor");

    CYG_REPORT_FUNCARG1XV(this);

    cdldialogbody_cookie = CdlDialogBody_Magic;

    CYGDBG_MEMLEAK_CONSTRUCTOR();

    CYG_POSTCONDITION_THISC();

    CYG_REPORT_RETURN();

}

//}}}

//{{{  Destructor                       

// ----------------------------------------------------------------------------

// The real work is done in the base classes.

CdlDialogBody::~CdlDialogBody()

{

    CYG_REPORT_FUNCNAME("CdlDialogBody:: destructor");

    CYG_REPORT_FUNCARG1XV(this);

    CYG_PRECONDITION_THISC();

    cdldialogbody_cookie = CdlDialogBody_Invalid;

    CYGDBG_MEMLEAK_DESTRUCTOR();

    CYG_REPORT_RETURN();

}

//}}}

//{{{  parse_dialog()                   

// ----------------------------------------------------------------------------

// Parsing a dialog definition.

int

CdlDialogBody::parse_dialog(CdlInterpreter interp, int argc, const char* argv[])

{

    CYG_REPORT_FUNCNAMETYPE("CdlDialog::parse_dialog", "result %d");

    CYG_REPORT_FUNCARG1("argc %d", argc);

    CYG_PRECONDITION_CLASSC(interp);

    std::string diag_argv0      = CdlParse::get_tcl_cmd_name(argv[0]);

    CdlLoadable  loadable       = interp->get_loadable();

    CdlContainer parent         = interp->get_container();

    CdlToplevel  toplevel       = interp->get_toplevel();

    CYG_ASSERT_CLASSC(loadable);        // There should always be a loadable during parsing

    CYG_ASSERT_CLASSC(parent);

    CYG_ASSERT_CLASSC(toplevel);

    // The new dialog should be created and added to the loadable

    // early on. If there is a parsing error it will get cleaned up

    // automatically as a consequence of the loadable destructor.

    // However it is necessary to validate the name first. Errors

    // should be reported via CdlParse::report_error(), which

    // may result in an exception.

    CdlDialog    new_dialog     = 0;

    CdlNode      old_node       = 0;

    std::vector<CdlInterpreterCommandEntry>* old_commands = 0;

    int          result         = TCL_OK;

    // Currently there are no command-line options. This may change in future.

    if (3 != argc) {

        CdlParse::report_error(interp, "", std::string("Incorrect number of arguments to `") + diag_argv0 +

                               "'\nExpecting name and properties list.");

    } else if (!Tcl_CommandComplete(CDL_TCL_CONST_CAST(char*, argv[2]))) {

        CdlParse::report_error(interp, "", std::string("Invalid property list for cdl_dialog `") + argv[1] + "'.");

    } else if (0 != toplevel->lookup(argv[1])) {

        CdlParse::report_error(interp, "", std::string("Dialog `") + argv[1] + "' cannot be loaded.\n" +

                               "The name is already in use.");

    } else {

        try {

            new_dialog = new CdlDialogBody(argv[1]);

            toplevel->add_node(loadable, parent, new_dialog);

            // Push the dialog as the current base object early on.

            // This aids diagnostics.

            old_node = interp->push_node(new_dialog);

            std::string tcl_result;

            std::vector<CdlInterpreterCommandEntry>  new_commands;

            static CdlInterpreterCommandEntry commands[] =

            {

                CdlInterpreterCommandEntry("init_proc",          &CdlWizardBody::parse_init_proc    ),

                CdlInterpreterCommandEntry("update_proc",        &CdlDialogBody::parse_update_proc  ),

                CdlInterpreterCommandEntry("display_proc",       &CdlDialogBody::parse_display_proc ),

                CdlInterpreterCommandEntry("confirm_proc",       &CdlWizardBody::parse_confirm_proc ),

                CdlInterpreterCommandEntry("cancel_proc",        &CdlWizardBody::parse_cancel_proc  ),

                CdlInterpreterCommandEntry("",                   0                                  ),

            };

            int i;

            for (i = 0; 0 != commands[i].command; i++) {

                new_commands.push_back(commands[i]);

            }

            CdlParentableBody::add_property_parsers(new_commands);

            CdlUserVisibleBody::add_property_parsers(new_commands);

            CdlNodeBody::add_property_parsers(new_commands);

            // Now evaluate the body. If an error occurs then typically

            // this will be reported via CdlParse::report_error(),

            // but any exceptions will have been intercepted and

            // turned into a Tcl error.

            old_commands = interp->push_commands(new_commands);

            result = interp->eval(argv[2], tcl_result);

            interp->pop_commands(old_commands);

            old_commands = 0;

            interp->pop_node(old_node);

            old_node = 0;

            if (TCL_OK == result) {

                // Even if there were errors, they were not fatal. There may

                // now be a number of properties for this option, and some

                // validation should take place. Start with the base classes.

                new_dialog->CdlNodeBody::check_properties(interp);

                new_dialog->CdlUserVisibleBody::check_properties(interp);

                new_dialog->CdlParentableBody::check_properties(interp);

                // The init_proc and update_proc properties are optional.

                // The display_proc, confirm_proc and cancel_proc properties

                // are compulsory.

                if (new_dialog->count_properties(CdlPropertyId_InitProc) > 1) {

                    CdlParse::report_error(interp, "", "A dialog should have only one `init_proc' property.");

                }

                if (new_dialog->count_properties(CdlPropertyId_UpdateProc) > 1) {

                    CdlParse::report_error(interp, "", "A dialog should have only one `update_proc' property.");

                }

                if (new_dialog->count_properties(CdlPropertyId_DisplayProc) != 1) {

                    CdlParse::report_error(interp, "", "A dialog should have one `display_proc' property.");

                }

                if (new_dialog->count_properties(CdlPropertyId_ConfirmProc) != 1) {

                    CdlParse::report_error(interp, "", "A dialog should have one `confirm_proc' property.");

                }

                if (new_dialog->count_properties(CdlPropertyId_CancelProc) != 1) {

                    CdlParse::report_error(interp, "", "A dialog should have one `cancel_proc' property.");

                }

            }

        } catch(...) {

            if (0 != new_dialog) {

                delete new_dialog;

            }

            if (0 != old_node) {

                interp->pop_node(old_node);

            }

            if (0 != old_commands) {

                interp->pop_commands(old_commands);

            }

            throw;

        }

    }

    CYG_REPORT_RETVAL(result);

    return result;

}

// ----------------------------------------------------------------------------

// Syntax: display_proc <tclcode>

int

CdlDialogBody::parse_display_proc(CdlInterpreter interp, int argc, const char* argv[])

{

    CYG_REPORT_FUNCNAMETYPE("parse_display_proc", "result %d");

    int result = CdlParse::parse_tclcode_property(interp, argc, argv, CdlPropertyId_DisplayProc, 0, 0);

    CYG_REPORT_RETVAL(result);

    return result;

}

// ----------------------------------------------------------------------------

// Syntax: update_proc <tclcode>

int

CdlDialogBody::parse_update_proc(CdlInterpreter interp, int argc, const char* argv[])

{

    CYG_REPORT_FUNCNAMETYPE("parse_update_proc", "result %d");

    int result = CdlParse::parse_tclcode_property(interp, argc, argv, CdlPropertyId_UpdateProc, 0, 0);

    CYG_REPORT_RETVAL(result);

    return result;

}

//}}}

//{{{  Persistence                      

// ----------------------------------------------------------------------------

// For now there is no information in a custom dialog that should end

// up in a save file, but it is still desirable to override the base

// class member function.

void

CdlDialogBody::save(CdlInterpreter interp, Tcl_Channel chan, int indentation, bool minimal)

{

    CYG_REPORT_FUNCNAME("CdlDialog::save");

    CYG_REPORT_FUNCARG5XV(this, interp, chan, indentation, minimal);

    CYG_PRECONDITION_THISC();

    CYG_UNUSED_PARAM(CdlInterpreter, interp);

    CYG_UNUSED_PARAM(Tcl_Channel, chan);

    CYG_UNUSED_PARAM(int, indentation);

    CYG_UNUSED_PARAM(bool, minimal);

    CYG_REPORT_RETURN();

}

//}}}

//{{{  Data access                      

// ----------------------------------------------------------------------------

bool

CdlDialogBody::has_init_proc() const

{

    CYG_REPORT_FUNCNAMETYPE("CdlDialog::has_init_proc", "result %d");

    CYG_REPORT_FUNCARG1XV(this);

    CYG_PRECONDITION_THISC();

    bool result = has_property(CdlPropertyId_InitProc);

    CYG_REPORT_RETVAL(result);

    return result;

}

bool

CdlDialogBody::has_update_proc() const

{

    CYG_REPORT_FUNCNAMETYPE("CdlDialog::has_update_proc", "result %d");

    CYG_REPORT_FUNCARG1XV(this);

    CYG_PRECONDITION_THISC();

    bool result = has_property(CdlPropertyId_UpdateProc);

    CYG_REPORT_RETVAL(result);

    return result;

}

const cdl_tcl_code&

CdlDialogBody::get_init_proc() const

{

    CYG_REPORT_FUNCNAME("CdlDialog::get_init_proc");

    CYG_REPORT_FUNCARG1XV(this);

    CYG_PRECONDITION_THISC();

    static cdl_tcl_code null_result = "";

    cdl_tcl_code& result = null_result;

    CdlProperty prop = get_property(CdlPropertyId_InitProc);

    if (0 != prop) {

        CdlProperty_TclCode tclprop = dynamic_cast<CdlProperty_TclCode>(prop);

        CYG_ASSERT_CLASSC(tclprop);

        result = tclprop->get_code();

    }

    CYG_REPORT_RETURN();

    return result;

}

const cdl_tcl_code&

CdlDialogBody::get_update_proc() const

{

    CYG_REPORT_FUNCNAME("CdlDialog::get_update_proc");

    CYG_REPORT_FUNCARG1XV(this);

    CYG_PRECONDITION_THISC();

    static cdl_tcl_code null_result = "";

    cdl_tcl_code& result = null_result;

    CdlProperty prop = get_property(CdlPropertyId_UpdateProc);

    if (0 != prop) {

        CdlProperty_TclCode tclprop = dynamic_cast<CdlProperty_TclCode>(prop);

        CYG_ASSERT_CLASSC(tclprop);

        result = tclprop->get_code();

    }

    CYG_REPORT_RETURN();

    return result;

}

const cdl_tcl_code&

CdlDialogBody::get_display_proc() const

{

    CYG_REPORT_FUNCNAME("CdlDialog::get_display_proc");

    CYG_REPORT_FUNCARG1XV(this);

    CYG_PRECONDITION_THISC();

    CdlProperty prop = get_property(CdlPropertyId_DisplayProc);

    CYG_ASSERT_CLASSC(prop);

    CdlProperty_TclCode tclprop = dynamic_cast<CdlProperty_TclCode>(prop);

    CYG_ASSERT_CLASSC(tclprop);

    const cdl_tcl_code& result = tclprop->get_code();

    CYG_REPORT_RETURN();

    return result;

}

const cdl_tcl_code&

CdlDialogBody::get_confirm_proc() const

{

    CYG_REPORT_FUNCNAME("CdlDialog::get_display_proc");

    CYG_REPORT_FUNCARG1XV(this);

    CYG_PRECONDITION_THISC();

    CdlProperty prop = get_property(CdlPropertyId_ConfirmProc);

    CYG_ASSERT_CLASSC(prop);

    CdlProperty_TclCode tclprop = dynamic_cast<CdlProperty_TclCode>(prop);

    CYG_ASSERT_CLASSC(tclprop);

    const cdl_tcl_code& result = tclprop->get_code();

    CYG_REPORT_RETURN();

    return result;

}

const cdl_tcl_code&

CdlDialogBody::get_cancel_proc() const

{

    CYG_REPORT_FUNCNAME("CdlDialog::get_display_proc");

    CYG_REPORT_FUNCARG1XV(this);

    CYG_PRECONDITION_THISC();

    CdlProperty prop = get_property(CdlPropertyId_CancelProc);

    CYG_ASSERT_CLASSC(prop);

    CdlProperty_TclCode tclprop = dynamic_cast<CdlProperty_TclCode>(prop);

    CYG_ASSERT_CLASSC(tclprop);

    const cdl_tcl_code& result = tclprop->get_code();

    CYG_REPORT_RETURN();

    return result;

}

//}}}

//{{{  check_this()                     

// ----------------------------------------------------------------------------

// check_this(). There is very little data associated with a dialog itself.

// most of the checks happen in the base class.

bool

CdlDialogBody::check_this(cyg_assert_class_zeal zeal) const

{

    if (CdlDialogBody_Magic != cdldialogbody_cookie) {

        return false;

    }

    CYGDBG_MEMLEAK_CHECKTHIS();

    return CdlUserVisibleBody::check_this(zeal);

}

//}}}

//{{{  misc                             

// ----------------------------------------------------------------------------

std::string

CdlDialogBody::get_class_name() const

{

    CYG_REPORT_FUNCNAME("CdlDialog::get_class_name");

    CYG_PRECONDITION_THISC();

    CYG_REPORT_RETURN();

    return "dialog";

}

//}}}