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/*
* Copyright (C) 2002-2016 by the Widelands Development Team
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "ui_basic/unique_window.h"
namespace UI {
/*
==============================================================================
UniqueWindow IMPLEMENTATION
==============================================================================
*/
/**
* Creates the window, if it does not exist.
*/
void UniqueWindow::Registry::create() {
if (!window) {
open_window();
}
}
/**
* Destroys the window, if it eixsts.
*/
void UniqueWindow::Registry::destroy() {
if (window) {
window->die();
}
}
/**
* Either destroys or creates the window.
*/
void UniqueWindow::Registry::toggle() {
if (window) {
window->die();
} else {
open_window();
}
}
/**
* In order to avoid dangling pointers, we need to kill our contained window
* here.
*/
UniqueWindow::Registry::~Registry() {
delete window;
}
/**
* Register, position according to the registry information.
*/
UniqueWindow::UniqueWindow(Panel* const parent,
const std::string& name,
UniqueWindow::Registry* const reg,
int32_t const w,
int32_t const h,
const std::string& title)
: Window(parent, name, 0, 0, w, h, title.c_str()), registry_(reg), usedefaultpos_(true) {
if (registry_) {
delete registry_->window;
registry_->window = this;
if (registry_->valid_pos) {
set_pos(Point(registry_->x, registry_->y));
usedefaultpos_ = false;
}
if (registry_->on_create) {
registry_->on_create();
}
}
}
/**
* Unregister, save latest position.
*/
UniqueWindow::~UniqueWindow() {
if (registry_) {
assert(registry_->window == this);
registry_->window = nullptr;
registry_->x = get_x();
registry_->y = get_y();
registry_->valid_pos = true;
if (registry_->on_delete) {
registry_->on_delete();
}
}
}
}
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