form.cpp

/*
 * Copyright (c) 2008, 2018, Oracle and/or its affiliates. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2.0,
 * as published by the Free Software Foundation.
 *
 * This program is designed to work with certain software (including
 * but not limited to OpenSSL) that is licensed under separate terms, as
 * designated in a particular file or component or in included license
 * documentation. The authors of MySQL hereby grant you an additional
 * permission to link the program and your derivative works with the
 * separately licensed software that they have either included with
 * the program or referenced in the documentation.
 * 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, version 2.0, 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 St, Fifth Floor, Boston, MA 02110-1301 USA 
*/

#include"mforms/mforms.h"

usingnamespacemforms;

static Form *current_active_form = NULL;

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

Form::Form(Form *owner, FormFlag flag) {
 _form_impl = &ControlFactory::get_instance()->_form_impl;

 _menu = NULL;
 _content = NULL;
 _fixed_size = false;
 _release_on_close = false;
 _active = true;
 _form_impl->create(this, owner, flag);
}

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

Form::Form() {
 _form_impl = &ControlFactory::get_instance()->_form_impl;
 _menu = NULL;
 _content = NULL;
 _fixed_size = false;
 _release_on_close = false;
 _active = true;
}

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

Form *Form::main_form() {
static Form *main_form = newForm();
// the platform specific code should initialize the main_form stub with whatever it wants (namely,
// call set_data() with a pointer to the real main window
return main_form;
}

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

Form::~Form() {
if (_menu)
 _menu->release();
if (current_active_form == this)
 current_active_form = NULL;
if (_content != NULL)
 _content->release();
}

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

voidForm::set_menubar(MenuBar *menu) {
if (!_content || !dynamic_cast<Box *>(_content))
throwstd::logic_error("set_menubar() must be called on a window with a Box as it's toplevel content");

if (menu != _menu) {
if (_menu)
 _menu->release();
 _menu = menu;
 _menu->retain();

 _form_impl->set_menubar(this, menu);
 }
}

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

voidForm::set_title(const std::string &title) {
if (_form_impl)
 _form_impl->set_title(this, title);
}

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

voidForm::set_release_on_close(bool flag) {
if (_form_impl)
 _release_on_close = flag;
}

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

boolForm::run_modal(Button *accept, Button *cancel) {
if (_form_impl)
return _form_impl->run_modal(this, accept, cancel);
returnfalse;
}

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

voidForm::show_modal(Button *accept, Button *cancel) {
if (_form_impl)
 _form_impl->show_modal(this, accept, cancel);
}

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

voidForm::end_modal(bool result) {
if (_form_impl)
 _form_impl->end_modal(this, result);
}

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

voidForm::close() {
if (_form_impl)
 _form_impl->close(this);
}

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

voidForm::center() {
if (_form_impl)
 _form_impl->center(this);
}

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

voidForm::set_content(View *view) {
if (_content != view && _form_impl) {
if (_content)
 _content->release();
 _content = view;
if (!_content->release_on_add())
 _content->retain();
 _form_impl->set_content(this, view);
 _content->set_parent(this);

// Note: we are not adding the content view to the underlying view's child list and hence
// have to take care for ref counting here.
 }
}

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

voidForm::flush_events() {
if (_form_impl)
 _form_impl->flush_events(this);
}

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

voidForm::activated() {
 current_active_form = this;
 _active = true;
_activated_signal();
}

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

voidForm::deactivated() {
 _active = false;
_deactivated_signal();
}

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

boolForm::is_active() {
return _active;
}

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

boolForm::can_close() {
if (_can_close_slot)
return_can_close_slot();
returntrue;
}

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

Form *Form::active_form() {
return current_active_form;
}