/// <summary>
/// Creates a new instance of the <see cref="Cursor"/> class.
/// </summary>
/// <param name="surface">The <see cref="Surface2D"/> that contains the cursor image.</param>
/// <returns>The instance of <see cref="Cursor"/> that was created.</returns>
public static Cursor Create(Surface2D surface)
{
Contract.Require(surface, nameof(surface));
var uv = UltravioletContext.DemandCurrent();
return uv.GetFactoryMethod<CursorFactory>()(uv, surface, 0, 0);
}
/// <summary>
/// Saves the specified surface as an image with the specified format.
/// </summary>
/// <param name="surface">The surface to save.</param>
/// <param name="stream">The stream to which to save the surface data.</param>
/// <param name="format">The format with which to save the image.</param>
private void Save(Surface2D surface, Stream stream, ImageFormat format)
{
var data = new Color[surface.Width * surface.Height];
surface.GetData(data);
Save(data, surface.Width, surface.Height, stream, format);
}
/// <summary>
/// Creates a new instance of the <see cref="Cursor"/> class.
/// </summary>
/// <param name="surface">The <see cref="Surface2D"/> that contains the cursor image.</param>
/// <param name="hx">The x-coordinate of the cursor's hotspot.</param>
/// <param name="hy">The y-coordinate of the cursor's hotspot.</param>
/// <returns>The instance of <see cref="Cursor"/> that was created.</returns>
public static Cursor Create(Surface2D surface, Int32 hx, Int32 hy)
{
Contract.Require(surface, "surface");
var uv = UltravioletContext.DemandCurrent();
return uv.GetFactoryMethod<CursorFactory>()(uv, surface, hx, hy);
}
/// <inheritdoc/>
public override void SaveAsJpeg(Surface2D surface, Stream stream)
{
Contract.Require(surface, "surface");
Contract.Require(stream, "stream");
Save(surface, stream, ImageFormat.Jpeg);
}
/// <summary>
/// Initializes a new instance of the OpenGLCursor class.
/// </summary>
/// <param name="uv">The UltravioletContext class.</param>
/// <param name="surface">The surface that contains the cursor image.</param>
/// <param name="hx">The x-coordinate of the cursor's hotspot.</param>
/// <param name="hy">The y-coordinate of the cursor's hotspot.</param>
public OpenGLCursor(UltravioletContext uv, Surface2D surface, Int32 hx, Int32 hy)
: base(uv)
{
Contract.Require(surface, "surface");
uv.ValidateResource(surface);
if (AreCursorsSupported(uv))
{
this.cursor = SDL.CreateColorCursor(((OpenGLSurface2D)surface).Native, hx, hy);
this.width = surface.Width;
this.height = surface.Height;
if (this.cursor == null)
{
this.width = 0;
this.height = 0;
}
}
else
{
this.cursor = null;
this.width = 0;
this.height = 0;
}
}
/// <inheritdoc/>
public override void SaveAsPng(Surface2D surface, Stream stream)
{
Contract.Require(surface, nameof(surface));
Contract.Require(stream, nameof(stream));
Save(surface, stream, Bitmap.CompressFormat.Png);
}
/// <inheritdoc/>
public override void SaveAsPng(Surface2D surface, Stream stream)
{
Contract.Require(surface, nameof(surface));
Contract.Require(stream, nameof(stream));
var data = new Color[surface.Width * surface.Height];
surface.GetData(data);
Save(data, surface.Width, surface.Height, stream, img => img.AsPNG());
}
/// <inheritdoc/>
public override void SaveAsPng(Surface2D surface, Stream stream)
{
Contract.Require(surface, "surface");
Contract.Require(stream, "stream");
var data = new Color[surface.Width * surface.Height];
surface.GetData(data);
Save(data, surface.Width, surface.Height, stream, asPng: true);
}
/// <summary>
/// Creates the output surface for a texture atlas.
/// </summary>
private static Surface2D CreateOutputSurface(TextureAtlasDescription atlasDesc, IEnumerable <TextureAtlasImage> atlasImages,
ContentManager content, Int32 width, Int32 height, Dictionary <String, Rectangle> images)
{
var output = Surface2D.Create(width, height);
foreach (var image in atlasImages)
{
var imageArea = images[image.Name];
using (var imageSurface = content.Load <Surface2D>(image.Path, false))
{
var areaWithoutPadding = new Rectangle(
imageArea.X,
imageArea.Y,
imageArea.Width - atlasDesc.Metadata.Padding,
imageArea.Height - atlasDesc.Metadata.Padding);
imageSurface.Blit(output, areaWithoutPadding);
}
}
return(output);
}
/// <summary> /// Blits the surface onto the specified destination surface. /// </summary> /// <param name="srcRect">The area of this surface that will be copied to the destination surface.</param> /// <param name="dst">The destination surface.</param> /// <param name="dstRect">The area on the destination surface to which this surface will be copied.</param> public abstract void Blit(Rectangle srcRect, Surface2D dst, Rectangle dstRect);
/// <summary> /// Blits the surface onto the specified destination surface. /// </summary> /// <param name="dst">The destination surface.</param> /// <param name="dstRect">The area on the destination surface to which this surface will be copied.</param> public abstract void Blit(Surface2D dst, Rectangle dstRect);
/// <summary> /// Blits the surface onto the specified destination surface. /// </summary> /// <param name="dst">The destination surface.</param> public abstract void Blit(Surface2D dst);
/// <summary> /// Blits the surface onto the specified destination surface. /// </summary> /// <param name="dst">The destination surface.</param> public abstract void Blit(Surface2D dst);
/// <summary> /// Blits the surface onto the specified destination surface. /// </summary> /// <param name="srcRect">The area of this surface that will be copied to the destination surface.</param> /// <param name="dst">The destination surface.</param> /// <param name="dstRect">The area on the destination surface to which this surface will be copied.</param> public abstract void Blit(Rectangle srcRect, Surface2D dst, Rectangle dstRect);
/// <summary> /// Blits the surface onto the specified destination surface. /// </summary> /// <param name="dst">The destination surface.</param> /// <param name="dstRect">The area on the destination surface to which this surface will be copied.</param> public abstract void Blit(Surface2D dst, Rectangle dstRect);
/// <summary> /// Saves the specified surface as a JPEG image. /// </summary> /// <param name="surface">The surface to save.</param> /// <param name="stream">The stream to which to save the surface data.</param> public abstract void SaveAsJpeg(Surface2D surface, Stream stream);
/// <summary> /// Saves the specified surface as a JPEG image. /// </summary> /// <param name="surface">The surface to save.</param> /// <param name="stream">The stream to which to save the surface data.</param> public abstract void SaveAsJpeg(Surface2D surface, Stream stream);
/// <summary>
/// Blits the surface onto the specified destination surface.
/// </summary>
/// <param name="srcRect">The area of this surface that will be copied to the destination surface.</param>
/// <param name="dst">The destination surface.</param>
/// <param name="dstRect">The area on the destination surface to which this surface will be copied.</param>
public override void Blit(Rectangle srcRect, Surface2D dst, Rectangle dstRect)
{
Contract.EnsureNotDisposed(this, Disposed);
Contract.Require(dst, "dst");
Ultraviolet.ValidateResource(dst);
BlitInternal(this, srcRect, (OpenGLSurface2D)dst, dstRect);
}
/// <summary>
/// Blits the surface onto the specified destination surface.
/// </summary>
/// <param name="dst">The destination surface.</param>
/// <param name="dstRect">The area on the destination surface to which this surface will be copied.</param>
public override void Blit(Surface2D dst, Rectangle dstRect)
{
Contract.EnsureNotDisposed(this, Disposed);
Contract.Require(dst, "dst");
Ultraviolet.ValidateResource(dst);
BlitInternal(this, new Rectangle(0, 0, Width, Height), (OpenGLSurface2D)dst, dstRect);
}
