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// This file is part of the wpspec Spectrum emulator.
//
// wpspec 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 3 of the License, or
// (at your option) any later version.
//
// wpspec 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 Noddybox.Emulation. If not, see <http://www.gnu.org/licenses/>.
//
// Copyright (c) 2012 Ian Cowburn
//
using System;
using System.Windows;
using System.Windows.Navigation;
using Microsoft.Phone.Controls;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Graphics;
using wpspec.Spectrum;
using Noddybox.Emulation.Xna.Keyboard;
using Microsoft.Xna.Framework.Input.Touch;
namespace wpspec
{
public partial class GamePage : PhoneApplicationPage
{
#region Private Data
private ContentManager contentManager;
private GameTimer timer;
private SpriteBatch spriteBatch;
private Texture2D screen;
private Vector2 location;
private Rectangle locationZoomed;
private Texture2D keyboardImage;
private KeyboardDriver<SpectrumKeySymbol> keyboard;
#endregion
#region Constructors
/// <summary>
/// Default constructor
/// </summary>
public GamePage()
{
InitializeComponent();
// Get the content manager from the application
//
contentManager = (Application.Current as App).Content;
// Create a timer for this page.
//
timer = new GameTimer();
timer.UpdateInterval = TimeSpan.FromMilliseconds(20);
timer.Update += OnUpdate;
timer.Draw += OnDraw;
}
#endregion
#region Overrides
protected override void OnNavigatedTo(NavigationEventArgs e)
{
// Set the sharing mode of the graphics device to turn on XNA rendering
//
SharedGraphicsDeviceManager.Current.GraphicsDevice.SetSharingMode(true);
// Create a new SpriteBatch, which can be used to draw textures.
//
spriteBatch = new SpriteBatch(SharedGraphicsDeviceManager.Current.GraphicsDevice);
// Create screen object
//
screen = new Texture2D
(SharedGraphicsDeviceManager.Current.GraphicsDevice,
Shared.Spectrum.Width,
Shared.Spectrum.Height,
false, Shared.Spectrum.ScreenFormat);
// Start the timer
//
timer.Start();
// Initialise locations for normal and zoomed display
//
location = new Vector2(SharedGraphicsDeviceManager.Current.GraphicsDevice.DisplayMode.Width / 2 - Shared.Spectrum.Width / 2, 10);
locationZoomed = new Rectangle(SharedGraphicsDeviceManager.Current.GraphicsDevice.DisplayMode.Width / 2 - Shared.Spectrum.Width * 100 / 140, 10,
Shared.Spectrum.Height * 100 / 70, Shared.Spectrum.Width * 100 / 70);
// Reset settings
//
Shared.Spectrum.ResetKeyboard();
// Create a keyboard driver
//
keyboardImage = contentManager.Load<Texture2D>("keyboard");
keyboard = new KeyboardDriver<SpectrumKeySymbol>
(SharedGraphicsDeviceManager.Current.GraphicsDevice,
keyboardImage,
new Vector2(0, 560),
Shared.SpectrumKeyboard);
keyboard.KeyEvent += HandleKeyboardEvent;
keyboard.TouchEvent += HandleTouchEvent;
base.OnNavigatedTo(e);
}
protected override void OnNavigatedFrom(NavigationEventArgs e)
{
// Stop the timer
//
timer.Stop();
// Set the sharing mode of the graphics device to turn off XNA rendering
//
SharedGraphicsDeviceManager.Current.GraphicsDevice.SetSharingMode(false);
screen.Dispose();
screen = null;
keyboard.KeyEvent -= HandleKeyboardEvent;
keyboard.TouchEvent -= HandleTouchEvent;
keyboard = null;
base.OnNavigatedFrom(e);
}
#endregion
#region Private members
/// <summary>
/// Run the emulation.
/// </summary>
private void OnUpdate(object sender, GameTimerEventArgs e)
{
keyboard.Update();
Shared.Spectrum.Run();
}
/// <summary>
/// Updates the display.
/// </summary>
private void OnDraw(object sender, GameTimerEventArgs e)
{
SharedGraphicsDeviceManager.Current.GraphicsDevice.Clear(Color.Black);
screen.SetData(Shared.Spectrum.Screen);
spriteBatch.Begin();
if (Shared.IsZoomed)
{
spriteBatch.Draw(screen, locationZoomed, Color.White);
}
else
{
spriteBatch.Draw(screen, location, Color.White);
}
keyboard.Draw(spriteBatch);
spriteBatch.End();
SharedGraphicsDeviceManager.Current.GraphicsDevice.Textures[0] = null;
}
#endregion
#region Keyboard driver events
private void HandleKeyboardEvent(object sender, KeyboardDriver<SpectrumKeySymbol>.KeyPressEventArgs e)
{
if (e.Pressed)
{
Shared.Spectrum.KeyPressed(e.Key);
}
else
{
Shared.Spectrum.KeyReleased(e.Key);
}
}
private void HandleTouchEvent(object sender, KeyboardDriver<SpectrumKeySymbol>.TouchLocationEventArgs e)
{
if (e.Location.State == TouchLocationState.Released && e.Location.Position.Y < 400)
{
Shared.IsZoomed = !Shared.IsZoomed;
}
}
#endregion
}
}
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