qt5base-lts/examples/statemachine/rogue/window.cpp
Jason McDonald 629d6eda5c Update contact information in license headers.
Replace Nokia contact email address with Qt Project website.

Change-Id: I431bbbf76d7c27d8b502f87947675c116994c415
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
2012-01-23 04:04:33 +01:00

203 lines
5.6 KiB
C++

/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: http://www.qt-project.org/
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtWidgets>
#include "window.h"
#include "movementtransition.h"
//![0]
Window::Window()
{
pX = 5;
pY = 5;
//![0]
QFontDatabase database;
QFont font;
if (database.families().contains("Monospace")) {
font = QFont("Monospace");
}
else {
foreach (QString family, database.families()) {
if (database.isFixedPitch(family)) {
font = QFont(family);
break;
}
}
}
font.setPointSize(12);
setFont(font);
//![1]
setupMap();
buildMachine();
}
//![1]
void Window::setStatus(const QString &status)
{
myStatus = status;
repaint();
}
QString Window::status() const
{
return myStatus;
}
void Window::paintEvent(QPaintEvent * /* event */)
{
QFontMetrics metrics(font());
QPainter painter(this);
int fontHeight = metrics.height();
int fontWidth = metrics.width('X');
int yPos = fontHeight;
int xPos;
painter.fillRect(rect(), Qt::black);
painter.setPen(Qt::white);
painter.drawText(QPoint(0, yPos), status());
for (int y = 0; y < HEIGHT; ++y) {
yPos += fontHeight;
xPos = 0;
for (int x = 0; x < WIDTH; ++x) {
if (y == pY && x == pX) {
xPos += fontWidth;
continue;
}
painter.drawText(QPoint(xPos, yPos), map[x][y]);
xPos += fontWidth;
}
}
painter.drawText(QPoint(pX * fontWidth, (pY + 2) * fontHeight), QChar('@'));
}
QSize Window::sizeHint() const
{
QFontMetrics metrics(font());
return QSize(metrics.width('X') * WIDTH, metrics.height() * (HEIGHT + 1));
}
//![2]
void Window::buildMachine()
{
machine = new QStateMachine;
QState *inputState = new QState(machine);
inputState->assignProperty(this, "status", "Move the rogue with 2, 4, 6, and 8");
MovementTransition *transition = new MovementTransition(this);
inputState->addTransition(transition);
//![2]
//![3]
QState *quitState = new QState(machine);
quitState->assignProperty(this, "status", "Really quit(y/n)?");
QKeyEventTransition *yesTransition = new
QKeyEventTransition(this, QEvent::KeyPress, Qt::Key_Y);
yesTransition->setTargetState(new QFinalState(machine));
quitState->addTransition(yesTransition);
QKeyEventTransition *noTransition =
new QKeyEventTransition(this, QEvent::KeyPress, Qt::Key_N);
noTransition->setTargetState(inputState);
quitState->addTransition(noTransition);
//![3]
//![4]
QKeyEventTransition *quitTransition =
new QKeyEventTransition(this, QEvent::KeyPress, Qt::Key_Q);
quitTransition->setTargetState(quitState);
inputState->addTransition(quitTransition);
//![4]
//![5]
machine->setInitialState(inputState);
connect(machine, SIGNAL(finished()), qApp, SLOT(quit()));
machine->start();
}
//![5]
void Window::movePlayer(Direction direction)
{
switch (direction) {
case Left:
if (map[pX - 1][pY] != '#')
--pX;
break;
case Right:
if (map[pX + 1][pY] != '#')
++pX;
break;
case Up:
if (map[pX][pY - 1] != '#')
--pY;
break;
case Down:
if (map[pX][pY + 1] != '#')
++pY;
break;
}
repaint();
}
void Window::setupMap()
{
qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));
for (int x = 0; x < WIDTH; ++x)
for (int y = 0; y < HEIGHT; ++y) {
if (x == 0 || x == WIDTH - 1 || y == 0 || y == HEIGHT - 1 || qrand() % 40 == 0)
map[x][y] = '#';
else
map[x][y] = '.';
}
}