GravityChooser.GravityChooserMessageBoxScreen Class Reference

A popup message box screen, used to display "are you sure?" confirmation messages. More...

Inheritance diagram for GravityChooser.GravityChooserMessageBoxScreen:

List of all members.

Public Member Functions
	GravityChooserMessageBoxScreen (string message)
	Constructor automatically includes the standard "A=ok, B=cancel" usage text prompt.
	GravityChooserMessageBoxScreen (string message, bool includeUsageText)
	Constructor lets the caller specify whether to include the standard "A=ok, B=cancel" usage text prompt.
override void	LoadContent ()
	Loads graphics content for this screen.
override void	HandleInput (InputState input)
	Responds to user input, accepting or cancelling the message box.
override void	Draw (GameTime gameTime)
	Draws the message box.
Events
EventHandler < PlayerIndexEventArgs >	Accepted
	Event handler for user acceptance.
EventHandler < PlayerIndexEventArgs >	Cancelled
	Event handler for user cancellation.

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Detailed Description

A popup message box screen, used to display "are you sure?" confirmation messages.

Definition at line 20 of file GravityChooserMessageBoxScreen.cs.

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Constructor & Destructor Documentation

GravityChooser.GravityChooserMessageBoxScreen.GravityChooserMessageBoxScreen

(

string

message

)

Constructor automatically includes the standard "A=ok, B=cancel" usage text prompt.

Definition at line 56 of file GravityChooserMessageBoxScreen.cs.

            : this(message, true)
        { }

GravityChooser.GravityChooserMessageBoxScreen.GravityChooserMessageBoxScreen	(	string	message,
		bool	includeUsageText
	)

Constructor lets the caller specify whether to include the standard "A=ok, B=cancel" usage text prompt.

Definition at line 64 of file GravityChooserMessageBoxScreen.cs.

        {
            const string usageText = "\nOK      : (A) button or [Enter]" +
                                     "\nCancel  : (B) button or [Esc]";

            if (includeUsageText)
            {
                this.message = message + usageText;
            }
            else
            {
                this.message = message;
            }

            IsPopup = true;

            TransitionOnTime = TimeSpan.FromSeconds(0.2);
            TransitionOffTime = TimeSpan.FromSeconds(0.2);
        }

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Member Function Documentation

override void GravityChooser.GravityChooserMessageBoxScreen.Draw

(

GameTime

gameTime

)

[virtual]

Draws the message box.

Reimplemented from NewGamePhysics.StateManager.GameScreen.

Definition at line 137 of file GravityChooserMessageBoxScreen.cs.

        {
            SpriteBatch spriteBatch = ScreenManager.SpriteBatch;
            SpriteFont font = ScreenManager.Fonts["menu"];

            // Darken down any other screens that were drawn beneath the popup.
            ScreenManager.FadeBackBufferToBlack(TransitionAlpha * 2 / 3);

            // Center the message text in the viewport.
            Viewport viewport = ScreenManager.GraphicsDevice.Viewport;
            Vector2 viewportSize = new Vector2(viewport.Width, viewport.Height);
            Vector2 textSize = font.MeasureString(message);
            Vector2 textPosition = (viewportSize - textSize) / 2;

            // The background includes a border somewhat larger than the text itself.
            const int hPad = 32;
            const int vPad = 16;

            Rectangle backgroundRectangle = new Rectangle((int)textPosition.X - hPad,
                                                          (int)textPosition.Y - vPad,
                                                          (int)textSize.X + hPad * 2,
                                                          (int)textSize.Y + vPad * 2);

            // Fade the popup alpha during transitions.
            Color color = new Color(255, 255, 255, TransitionAlpha);

            spriteBatch.Begin();

            // Draw the background rectangle.
            spriteBatch.Draw(gradientTexture, backgroundRectangle, color);

            // Draw the message box text.
            spriteBatch.DrawString(font, message, textPosition, color);

            spriteBatch.End();
        }

override void GravityChooser.GravityChooserMessageBoxScreen.HandleInput

(

InputState

input

)

[virtual]

Responds to user input, accepting or cancelling the message box.

Reimplemented from NewGamePhysics.StateManager.GameScreen.

Definition at line 102 of file GravityChooserMessageBoxScreen.cs.

        {
            PlayerIndex playerIndex;

            // We pass in our ControllingPlayer, which may either be null (to
            // accept input from any player) or a specific index. If we pass a null
            // controlling player, the InputState helper returns to us which player
            // actually provided the input. We pass that through to our Accepted and
            // Cancelled events, so they can tell which player triggered them.
            if (input.IsMenuSelect(ControllingPlayer, out playerIndex))
            {
                // Raise the accepted event, then exit the message box.
                if (Accepted != null)
                    Accepted(this, new PlayerIndexEventArgs(playerIndex));

                ExitScreen();
            }
            else if (input.IsMenuCancel(ControllingPlayer, out playerIndex))
            {
                // Raise the cancelled event, then exit the message box.
                if (Cancelled != null)
                    Cancelled(this, new PlayerIndexEventArgs(playerIndex));

                ExitScreen();
            }
        }

override void GravityChooser.GravityChooserMessageBoxScreen.LoadContent

(

)

[virtual]

Loads graphics content for this screen.

Reimplemented from NewGamePhysics.StateManager.GameScreen.

Definition at line 88 of file GravityChooserMessageBoxScreen.cs.

        {
            ContentManager content = ScreenManager.Game.Content;

            gradientTexture = content.Load<Texture2D>(@"Sprites\gradient");
        }

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Event Documentation

EventHandler<PlayerIndexEventArgs> GravityChooser.GravityChooserMessageBoxScreen.Accepted

Event handler for user acceptance.

Definition at line 41 of file GravityChooserMessageBoxScreen.cs.

EventHandler<PlayerIndexEventArgs> GravityChooser.GravityChooserMessageBoxScreen.Cancelled

Event handler for user cancellation.

Definition at line 46 of file GravityChooserMessageBoxScreen.cs.

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The documentation for this class was generated from the following file:

• C:/Users/Andreas Schiffler/Desktop/SVN/NewGamePhysics/GravityChooser/Screens/GravityChooserMessageBoxScreen.cs