/// <summary>
/// Creates polygon from the texture.
/// </summary>
/// <returns>Returns created polygon as <see cref="ShapeState"/> or null when unsuccessful.</returns>
public ShapeState CreatePolygonFromTexture()
{
// texture data
uint[] data = new uint[textureScreen.Texture.TextureXna.Width * textureScreen.Texture.TextureXna.Height];
textureScreen.Texture.TextureXna.GetData(data);
// compute vertices from texture
Vertices textureVertices;
try
{
textureVertices = PolygonTools.CreatePolygon(data, textureScreen.Texture.TextureXna.Width, true);
}
catch
{
Messages.ShowError("Unable to convert texture to polygon.");
return(null);
}
// no polygon
if (textureVertices.Count < 3)
{
Messages.ShowError("Result polygon would have less then 3 vertices.");
return(null);
}
// polygon is not simple
else if (!textureVertices.IsSimple())
{
Messages.ShowError("Result polygon would have crossing edges. Probably texture cointains separate regions.");
return(null);
}
// polygon is correct => move polygon to correct position
else
{
for (int i = 0; i < textureVertices.Count; ++i)
{
textureVertices[i] -= textureScreen.Texture.Origin;
}
}
return(textureScreen.AddShape(new Polygon(textureVertices)));
}
/// <summary>
/// Initializes a new instance of the <see cref="TextureForm"/> class.
/// </summary>
/// <param name="texture">The texture to edit.</param>
public TextureForm(Texture texture)
{
InitializeComponent();
Icon = Properties.Resources._2DPGC_Logo;
// messages manager
messagesManager = new DefaultMessagesManager(statusLabel);
Messages.MessagesManager = messagesManager;
// texture
this.texture = texture;
// init controls settings
nameTextBox.Text = texture.Name;
// texture screen
textureScreen = new TextureScreen();
textureScreen.Texture = texture;
textureScreen.Dock = DockStyle.Fill;
tableLayoutPanel.Controls.Add(textureScreen, 0, 0);
textureScreen.Zoom = 100;
textureScreen.Position = new PointF(-textureScreen.Width / 2f, -textureScreen.Height / 2f);
// shapes controller
shapesController = new TextureControllerForShapesEditing(textureScreen);
shapesController.Location = new Point(3, 81);
textureSettingsPanel.Controls.Add(shapesController);
// title (window text)
UpdateTitle();
// init shapes from texture
foreach (Shape shape in texture.Shapes)
{
ShapeState newItem = textureScreen.AddShape(shape);
shapesController.ShapesList.Items.Add(newItem);
}
shapesController.ShapesList.SelectedIndex = shapesController.ShapesList.Items.Count - 1;
}
