internal static SKBitmap PaddingImage(SKBitmap original, int paddedWidth, int paddedHeight, bool isOpaque)
{
// setup new bitmap and optionally clear
var bitmap = new SKBitmap(paddedWidth, paddedHeight, isOpaque);
var canvas = new SKCanvas(bitmap);
if (isOpaque)
{
canvas.Clear(new SKColor(255, 255, 255)); // we could make this color a resizeParam
}
else
{
canvas.Clear(SKColor.Empty);
}
// find co-ords to draw original at
var left = original.Width < paddedWidth ? (paddedWidth - original.Width) / 2 : 0;
var top = original.Height < paddedHeight ? (paddedHeight - original.Height) / 2 : 0;
var drawRect = new SKRectI
{
Left = left,
Top = top,
Right = original.Width + left,
Bottom = original.Height + top
};
// draw original onto padded version
canvas.DrawBitmap(original, drawRect);
canvas.Flush();
canvas.Dispose();
original.Dispose();
return(bitmap);
}
private SKBitmap Pad(SKBitmap original, int paddedWidth, int paddedHeight, bool isOpaque)
{
// setup new bitmap and optionally clear
var bitmap = new SKBitmap(paddedWidth, paddedHeight, isOpaque);
var canvas = new SKCanvas(bitmap);
canvas.Clear(isOpaque ? new SKColor(255, 255, 255) : SKColor.Empty);
// find co-ords to draw original at
var left = original.Width < paddedWidth ? (paddedWidth - original.Width) / 2 : 0;
var top = original.Height < paddedHeight ? (paddedHeight - original.Height) / 2 : 0;
var drawRect = new SKRectI
{
Left = left,
Top = top,
Right = original.Width + left,
Bottom = original.Height + top
};
// draw original onto padded version
canvas.DrawBitmap(original, drawRect);
canvas.Flush();
canvas.Dispose();
original.Dispose();
return(bitmap);
}
public override void Dispose()
{
_canvas.Dispose();
_surface.Dispose();
_framebuffer.Dispose();
base.Dispose();
}
public override void Dispose()
{
if (_skiaCanvas != null)
{
_skiaCanvas.Dispose();
_skiaCanvas = null;
}
if (_surface != null)
{
_surface.Dispose();
_surface = null;
}
if (_image != null)
{
_image.Dispose();
_image = null;
}
if (_bitmap != null && _disposeBitmap)
{
_bitmap.Dispose();
_bitmap = null;
}
_canvas = null;
base.Dispose();
}
public void SetBounds(int AWidth, int AHeight)
{
// Prevent divisions by zero downstream
if (AWidth == 0)
{
AWidth = 1;
}
if (AHeight == 0)
{
AHeight = 1;
}
int PrevDisplayWidth = 1;
int PrevDisplayHeight = 1;
if (BitmapCanvas != null)
{
PrevDisplayWidth = BitmapCanvas.Width;
PrevDisplayHeight = BitmapCanvas.Height;
}
BitmapCanvas?.Dispose();
BitmapCanvas = new SKBitmap(AWidth, AHeight, SKColorType.Rgba8888, SKAlphaType.Unpremul);
DrawCanvas?.Dispose();
DrawCanvas = new SKCanvas(BitmapCanvas);
if (BitmapCanvas != null)
{
if (PrevDisplayWidth > 0 && PrevDisplayHeight > 0)
{
if (SquareAspect)
{
if (HoldOriginOnResize)
{
SetWorldBounds(OriginX, OriginY,
OriginX + WidthX * ((double)AWidth / (double)PrevDisplayWidth),
OriginY + WidthY * ((double)AHeight / (double)PrevDisplayHeight),
0);
}
else
{
SetWorldBounds(LimitX - WidthX * ((double)AWidth / (double)PrevDisplayWidth),
LimitY - WidthY * ((double)AHeight / (double)PrevDisplayHeight),
LimitX, LimitY,
0);
}
}
else
{
SetWorldBounds(OriginX, OriginY,
OriginX + WidthX,
OriginY + WidthY, 0);
}
}
}
CalculateXYOffsets();
}
public void Dispose()
{
if (_canvas != null)
{
_canvas?.Flush();
_canvas?.Dispose();
_canvas = null;
}
}
internal static SKBitmap WatermarkText(SKBitmap original, ResizeParams resizeParams, WatermarkTextModel watermarkText)
{
var toBitmap = new SKBitmap(original.Width, original.Height);
var canvas = new SKCanvas(toBitmap);
// Draw a bitmap rescaled
var paint = new SKPaint();
//paint.Typeface = SKTypeface.FromFamilyName("Arial");
paint.TextSize = watermarkText.TextSize;
paint.TextAlign = watermarkText.TextAlign.GetSKTextAlign();
if (watermarkText.IsVerticalText)
{
paint.IsVerticalText = true;
}
else
{
paint.IsLinearText = true;
}
if (watermarkText.Type == 2)
{
paint.IsStroke = true;
paint.StrokeWidth = watermarkText.StrokeWidth;
paint.StrokeCap = SKStrokeCap.Round;
}
paint.Style = watermarkText.Type.GetSKPaintStyle();
paint.FilterQuality = watermarkText.Quality.GetSKFilterQuality();
paint.TextSkewX = watermarkText.TextSkewX;
paint.IsAntialias = true;
//https://www.color-hex.com/
if (SKColor.TryParse(watermarkText.Color, out SKColor color))
{
paint.Color = color;
}
else
{
paint.Color = SKColors.Black;
}
canvas.DrawBitmap(original, 0, 0);
var x = watermarkText.PositionMeasureType == 1 ? watermarkText.X : watermarkText.X.ToPixel(original.Width);
var y = watermarkText.PositionMeasureType == 1 ? watermarkText.Y : watermarkText.Y.ToPixel(original.Height);
canvas.DrawText(watermarkText.Value, x, y, paint);
canvas.Flush();
canvas.Dispose();
paint.Dispose();
original.Dispose();
return(toBitmap);
}
/// <summary>
/// Gets the resulting graphics encoded as a PNG image in a byte array.
/// <para>
/// The canvas can no longer be used for drawing after calling this method.</para>
/// </summary>
/// <returns>The byte array containing the PNG image</returns>
public override byte[] ToByteArray()
{
_canvas.Dispose();
_canvas = null;
byte[] result;
using (var image = SKImage.FromBitmap(_bitmap))
using (var data = image.Encode(SKEncodedImageFormat.Png, 90))
using (var imageDataStream = data.AsStream())
{
var buffer = new MemoryStream();
PngProcessor.InsertDpi(imageDataStream, buffer, _dpi);
result = buffer.ToArray();
}
Close();
return(result);
}
void RenderWithSkia()
{
int width = glControl1.Width;
int height = glControl1.Height;
if (field == null || field.width != width || field.height != height)
{
field = new Starfield.Field(100_000, width, height);
}
field.StepForward();
// Create a Skia surface using the OpenGL control
SKColorType colorType = SKColorType.Rgba8888;
GRContext contextOpenGL = GRContext.Create(GRBackend.OpenGL, GRGlInterface.CreateNativeGlInterface());
GL.GetInteger(GetPName.FramebufferBinding, out var framebuffer);
GRGlFramebufferInfo glInfo = new GRGlFramebufferInfo((uint)framebuffer, colorType.ToGlSizedFormat());
GL.GetInteger(GetPName.StencilBits, out var stencil);
GRBackendRenderTarget renderTarget = new GRBackendRenderTarget(width, height, contextOpenGL.GetMaxSurfaceSampleCount(colorType), stencil, glInfo);
SKSurface surface = SKSurface.Create(contextOpenGL, renderTarget, GRSurfaceOrigin.BottomLeft, colorType);
SKCanvas canvas = surface.Canvas;
// draw the starfield
var paint = new SKPaint
{
Color = SKColors.White,
IsAntialias = true
};
canvas.Clear(SKColors.Black);
foreach (Starfield.Star star in field.stars)
{
//canvas.DrawRect(star.X, star.Y, star.Size, star.Size, paint);
canvas.DrawCircle(new SKPoint(star.X, star.Y), star.Size / 2, paint);
}
// Force a display
surface.Canvas.Flush();
glControl1.SwapBuffers();
// dispose to prevent memory access violations while exiting
renderTarget?.Dispose();
contextOpenGL?.Dispose();
canvas?.Dispose();
surface?.Dispose();
// update the FPS display
renderCount += 1;
double elapsedSeconds = (double)stopwatch.ElapsedMilliseconds / 1000;
Text = string.Format("Rendered {0} frames in {1:0.00} seconds ({2:0.00} Hz)", renderCount, elapsedSeconds, renderCount / elapsedSeconds);
}
public void Create(byte[] imageData)
{
var webClient = new WebClient();
//byte[] imageData = webClient.DownloadData("https://kasikornbank.com/SiteCollectionDocuments/about/img/logo/logo.png");
var resizeFactor = 0.5f;
var bitmap = SKBitmap.Decode(imageData);
var toBitmap = new SKBitmap((int)Math.Round(bitmap.Width * resizeFactor), (int)Math.Round(bitmap.Height * resizeFactor), bitmap.ColorType, bitmap.AlphaType);
var canvas = new SKCanvas(toBitmap);
canvas.SetMatrix(SKMatrix.MakeScale(resizeFactor, resizeFactor));
canvas.DrawBitmap(bitmap, 0, 0);
canvas.ResetMatrix();
var font = SKTypeface.FromFamilyName("Arial");
var brush = new SKPaint
{
Typeface = font,
TextSize = 64.0f,
IsAntialias = true,
Color = new SKColor(255, 255, 255, 255)
};
canvas.DrawText("Resized!", 0, bitmap.Height * resizeFactor / 2.0f, brush);
canvas.Flush();
var image = SKImage.FromBitmap(toBitmap);
var data = image.Encode(SKEncodedImageFormat.Png, 90);
DateTime now = DateTime.Now;
string fileName = "Test";
//string fileName = ("{0}_{1}_{2}-{4}{5}{6}", now.Date,now.Month,now.Year,now.Hour,now.Minute,now.Second).ToString();
string extension = ".png";
Java.IO.File picturesDirectory = Android.OS.Environment.GetExternalStoragePublicDirectory(Android.OS.Environment.DirectoryPictures);
Java.IO.File folderDirectory = picturesDirectory;
//Start Save
using (var stream = new FileStream(Path.Combine(folderDirectory.ToString(), fileName + extension), FileMode.Create, FileAccess.Write))
data.SaveTo(stream);
//End Save
data.Dispose();
image.Dispose();
canvas.Dispose();
brush.Dispose();
font.Dispose();
toBitmap.Dispose();
bitmap.Dispose();
}
public static async Task SaveToDisk(string basePath, int i, SKBitmap bitmap, SKCanvas canvas)
{
using (var data = bitmap.Encode(SKEncodedImageFormat.Png, 80))
{
// save the data to a stream
using (var stream = File.OpenWrite(Path.Combine(basePath, $"{i.ToString("D8")}.png")))
data.SaveTo(stream);
}
// Release
bitmap.Dispose();
canvas.Dispose();
}
void Render()
{
// Create a Skia surface using the OpenGL control
int width = glControl1.Width;
int height = glControl1.Height;
SKColorType colorType = SKColorType.Rgba8888;
GRContext contextOpenGL = GRContext.Create(GRBackend.OpenGL, GRGlInterface.CreateNativeGlInterface());
GL.GetInteger(GetPName.FramebufferBinding, out var framebuffer);
GRGlFramebufferInfo glInfo = new GRGlFramebufferInfo((uint)framebuffer, colorType.ToGlSizedFormat());
GL.GetInteger(GetPName.StencilBits, out var stencil);
GRBackendRenderTarget renderTarget = new GRBackendRenderTarget(width, height, contextOpenGL.GetMaxSurfaceSampleCount(colorType), stencil, glInfo);
SKSurface surface = SKSurface.Create(contextOpenGL, renderTarget, GRSurfaceOrigin.BottomLeft, colorType);
SKCanvas canvas = surface.Canvas;
// draw some lines
canvas.Clear(SKColor.Parse("#003366"));
var paint = new SKPaint
{
Color = new SKColor(255, 255, 255, 50),
IsAntialias = true
};
for (int i = 0; i < 1_000; i++)
{
SKPoint ptA = new SKPoint(rand.Next(width), rand.Next(height));
SKPoint ptB = new SKPoint(rand.Next(width), rand.Next(height));
canvas.DrawLine(ptA, ptB, paint);
}
// Force a display
surface.Canvas.Flush();
glControl1.SwapBuffers();
// dispose to prevent memory access violations while exiting
renderTarget?.Dispose();
contextOpenGL?.Dispose();
canvas?.Dispose();
surface?.Dispose();
// update the FPS display
renderCount += 1;
double elapsedSeconds = (double)stopwatch.ElapsedMilliseconds / 1000;
Text = string.Format("Rendered {0} frames in {1:0.00} seconds ({2:0.00} Hz)", renderCount, elapsedSeconds, renderCount / elapsedSeconds);
}
/// <summary>
/// Draws the footer and ends the current page.
/// </summary>
private static void EndPage()
{
if (_document == null)
{
return;
}
if (_canvas != null)
{
DrawFooter();
_canvas.Flush();
_document.EndPage();
_canvas.Dispose();
_canvas = null;
}
}
static void Main(string[] args)
{
var resizeFactor = 0.5f;
var bitmap = SKBitmap.Decode("input.png");
var toBitmap = new SKBitmap((int)Math.Round(bitmap.Width * resizeFactor), (int)Math.Round(bitmap.Height * resizeFactor), bitmap.ColorType, bitmap.AlphaType);
var canvas = new SKCanvas(toBitmap);
// Draw a bitmap rescaled
canvas.SetMatrix(SKMatrix.MakeScale(resizeFactor, resizeFactor));
canvas.DrawBitmap(bitmap, 0, 0);
canvas.ResetMatrix();
var font = SKTypeface.FromFamilyName("Arial");
var brush = new SKPaint
{
Typeface = font,
TextSize = 40.0f,
IsAntialias = true,
Color = new SKColor(255, 255, 255, 255)
};
canvas.DrawText("Resized!", 0, bitmap.Height * resizeFactor / 2.0f, brush);
canvas.Flush();
var image = SKImage.FromBitmap(toBitmap);
var data = image.Encode(SKEncodedImageFormat.Png, 90);
using (var stream = new FileStream("output.png", FileMode.Create, FileAccess.Write))
data.SaveTo(stream);
data.Dispose();
image.Dispose();
canvas.Dispose();
brush.Dispose();
font.Dispose();
toBitmap.Dispose();
bitmap.Dispose();
}
public SKBitmap Render(int width, int height)
{
var w = width / MaxWidth;
var h = height / MaxHeight;
var bitmap = new SKBitmap(width, height, SKColorType.Bgra8888, SKAlphaType.Premul);
this.SpriteSheetData = new SpriteSheetData();
this.SpriteSheetData.sprites = new SpriteData[OriginImages.Count];
using (var canvas = new SKCanvas(bitmap))
{
canvas.Clear();
for (var y = 0; y < h; y++)
{
for (var x = 0; x < w; x++)
{
var idx = y * w + x;
if (idx >= Images.Count)
goto End;
canvas.DrawBitmap(Images[idx], x * MaxWidth, y * MaxHeight);
OnProgress?.Invoke((double)(idx + 1) / Images.Count);
SpriteSheetData.sprites[idx] = new SpriteData()
{
x = x * MaxWidth,
y = (h - 1 - y) * MaxHeight,
width = MaxWidth,
height = MaxHeight,
pivotX = MaxWidth / 2,
pivotY = MaxHeight / 2
};
}
}
End:
canvas.Flush();
canvas.Dispose();
}
return bitmap;
}
protected override void OnDestroyingContext()
{
base.OnDestroyingContext();
lastSize = default;
canvas?.Dispose();
canvas = null;
surface?.Dispose();
surface = null;
renderTarget?.Dispose();
renderTarget = null;
glInfo = default;
context?.AbandonContext(false);
context?.Dispose();
context = null;
glInterface?.Dispose();
glInterface = null;
}
/// <summary>
/// Dispose resources.
/// </summary>
public void Dispose()
{
_bitmap?.Dispose();
_canvas?.Dispose();
}
void OnPaintSurface(SKSurface surface, int width, int height)
{
// Get the canvas
SKCanvas canvas = surface.Canvas;
// These two dimensions should be the same.
int canvasSize = Math.Min(width, height);
// If bitmap does not exist, create it
if (bitmap == null)
{
// Set three fields
bitmapSize = canvasSize;
bitmap = new SKBitmap(bitmapSize, bitmapSize);
bitmapCanvas = new SKCanvas(bitmap);
// Establishes circular clipping and colors background
PrepBitmap(bitmapCanvas, bitmapSize);
}
// If the canvas has become larger, make a new bitmap of that size.
else if (bitmapSize < canvasSize)
{
// New versions of the three fields
int newBitmapSize = canvasSize;
SKBitmap newBitmap = new SKBitmap(newBitmapSize, newBitmapSize);
SKCanvas newBitmapCanvas = new SKCanvas(newBitmap);
// New circular clipping and background
PrepBitmap(newBitmapCanvas, newBitmapSize);
// Copy old bitmap to new bitmap
float diff = (newBitmapSize - bitmapSize) / 2f;
newBitmapCanvas.DrawBitmap(bitmap, diff, diff);
// Dispose old bitmap and its canvas
bitmapCanvas.Dispose();
bitmap.Dispose();
// Set fields to new values
bitmap = newBitmap;
bitmapCanvas = newBitmapCanvas;
bitmapSize = newBitmapSize;
}
// Clear the canvas
canvas.Clear(SKColors.White);
// Set the rotate transform
float radius = canvasSize / 2;
canvas.RotateDegrees(angle, radius, radius);
// Set a circular clipping area
clipPath.Reset();
clipPath.AddCircle(radius, radius, radius);
canvas.ClipPath(clipPath);
// Draw the bitmap
float offset = (canvasSize - bitmapSize) / 2f;
canvas.DrawBitmap(bitmap, offset, offset);
// Draw the cross hairs
canvas.DrawLine(radius, 0, radius, canvasSize, thinLinePaint);
canvas.DrawLine(0, radius, canvasSize, radius, thinLinePaint);
}
public void Destroy()
{
nativePaint.Dispose();
nativeCanvas.Dispose();
nativeSurface.Dispose();
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public override void Dispose()
{
canvas?.Dispose(); canvas = null;
bitmap?.Dispose(); bitmap = null;
base.Dispose();
}
public void Dispose()
{
Bitmap.Dispose();
Canvas.Dispose();
}
private async Task <Stream> GetQueryResultImage()
{
Stopwatch watchDraw = new Stopwatch();
watchDraw.Start();
// todo make dynamic
int width = Width;
int height = 10000;
SKBitmap bitmap = new SKBitmap(width, height); // TODO insert into constructor
SKCanvas canvas = new SKCanvas(bitmap);
canvas.Clear(DrawingHelper.DiscordBackgroundColor);
int padding = 20;
int xSize = width - padding * 2;
if (Header.Count == 0)
{
// TODO draw no results on image
//await Context.Channel.SendMessageAsync("No results", false, null, null, null, new Discord.MessageReference(Context.Message.Id));
return(null);
}
int cellWidth = xSize / Header.Count;
int currentHeight = padding;
List <int> widths = DefineTableCellWidths(cellWidth, DrawingHelper.TitleTextPaint, DrawingHelper.DefaultTextPaint);
string cellWithInfo = "normal" + cellWidth + " " + string.Join(", ", widths);
//await Context.Channel.SendMessageAsync(cellWithInfo, false, null, null, null, new Discord.MessageReference(Context.Message.Id));
currentHeight = DrawRow(canvas, Header, -1, padding, currentHeight + 10, widths, true);
int failedDrawLineCount = 0;
int rowId = 0;
foreach (var row in Data)
{
try
{
canvas.DrawLine(padding, currentHeight - 13, Math.Max(width - padding, 0), currentHeight - 13, DrawingHelper.DefaultDrawing);
}
catch (Exception ex)
{
failedDrawLineCount++;
}
try
{
currentHeight = DrawRow(canvas, row, rowId, padding, currentHeight, widths);
currentHeight += 5;
}
catch (Exception ex)
{
// TODO send exception
//Context.Channel.SendMessageAsync(ex.ToString());
break;
}
rowId++;
}
try
{
canvas.DrawLine(padding, currentHeight - 13, Math.Max(width - padding, 0), currentHeight - 13, DrawingHelper.DefaultDrawing);
}
catch (Exception ex)
{
failedDrawLineCount++;
}
if (failedDrawLineCount > 0)
{
//Context.Channel.SendMessageAsync($"Failed to draw {failedDrawLineCount} lines, widths: {string.Join(",", widths)}");
}
int currentWidth = padding;
foreach (var curWidth in widths)
{
canvas.DrawLine(currentWidth, padding - 5, currentWidth, currentHeight - 13, DrawingHelper.DefaultDrawing);
currentWidth += curWidth;
}
canvas.DrawLine(currentWidth, padding - 5, currentWidth, currentHeight - 13, DrawingHelper.DefaultDrawing);
watchDraw.Stop();
//
canvas.DrawText($"{AdditionalString} DrawTime: {watchDraw.ElapsedMilliseconds.ToString("N0")}ms",
new SKPoint(padding, currentHeight + padding),
DrawingHelper.TitleTextPaint); // TODO Different color for text
//List<int> rowHeight = new List<int>();
//Rectangle DestinationRectangle = new Rectangle(10, 10, cellWidth, 500);
//var size = Graphics.MeasureCharacterRanges("", drawFont2, DestinationRectangle, null);
//Graphics.DrawString($"{(int)((maxValue / yNum) * i)}", drawFont2, b, new Point(40, 10 + ySize - (ySize / yNum) * i));
bitmap = DrawingHelper.CropImage(bitmap, new SKRect(0, 0, Width, currentHeight + padding * 3));
var stream = CommonHelper.GetStream(bitmap);
bitmap.Dispose();
canvas.Dispose();
return(stream);
}
private List <int> DefineTableCellWidths(int normalCellWidth, SKPaint headerPaint, SKPaint normalPaint)
{
var bitmap = new SKBitmap(2000, 2000); // TODO insert into constructor
SKCanvas canvas = new SKCanvas(bitmap);
canvas.Clear(DrawingHelper.DiscordBackgroundColor);
int[] maxWidthNeeded = new int[Header.Count];
// the minimum size is the header text size
for (int i = 0; i < Header.Count; i++)
{
var width = headerPaint.MeasureText(Header[i]);
maxWidthNeeded[i] = (int)width + 10;
}
// find the max column size in the content
for (int i = 0; i < maxWidthNeeded.Length; i++)
{
foreach (var row in Data)
{
var width = normalPaint.MeasureText(row[i]);
int currentWidth = (int)width + 10;
if (maxWidthNeeded[i] < currentWidth)
{
maxWidthNeeded[i] = currentWidth;
}
}
}
// find columns that need the flex property
List <int> flexColumns = new List <int>();
int freeRoom = 0;
int flexContent = 0;
for (int i = 0; i < maxWidthNeeded.Length; i++)
{
if (maxWidthNeeded[i] > normalCellWidth)
{
flexColumns.Add(i);
flexContent += maxWidthNeeded[i] - normalCellWidth; // only the oversize
}
else
{
freeRoom += normalCellWidth - maxWidthNeeded[i];
}
}
if (flexColumns.Count == 0)
{
// no columns need flex so we distribute all even
for (int i = 0; i < maxWidthNeeded.Length; i++)
{
maxWidthNeeded[i] = normalCellWidth;
}
}
else
{
// we need to distribute the free room over the flexContent by %
foreach (var column in flexColumns)
{
float percentNeeded = (maxWidthNeeded[column] - normalCellWidth) / (float)flexContent;
float gettingFreeSpace = freeRoom * percentNeeded;
maxWidthNeeded[column] = normalCellWidth + (int)gettingFreeSpace;
}
}
canvas.Dispose();
bitmap.Dispose();
return(maxWidthNeeded.ToList());
}
public void Dispose()
{
canvas.Dispose();
bitmap.Dispose();
}
public void Dispose()
{
_c?.Dispose();
}
private void Render(int cornerCount = 100, int maxVisibleDistance = 200)
{
// create the field if needed or if the size changed
if (field == null || field.width != glControl1.Width || field.height != glControl1.Height)
{
field = new IntroAnimation.Field(glControl1.Width, glControl1.Height, cornerCount);
}
// step the field forward in time
field.StepForward(3);
// Create a Skia surface using the OpenGL control
SKColorType colorType = SKColorType.Rgba8888;
GRContext contextOpenGL = GRContext.Create(GRBackend.OpenGL, GRGlInterface.CreateNativeGlInterface());
GL.GetInteger(GetPName.FramebufferBinding, out var framebuffer);
GRGlFramebufferInfo glInfo = new GRGlFramebufferInfo((uint)framebuffer, colorType.ToGlSizedFormat());
GL.GetInteger(GetPName.StencilBits, out var stencil);
GRBackendRenderTarget renderTarget = new GRBackendRenderTarget(glControl1.Width, glControl1.Height, contextOpenGL.GetMaxSurfaceSampleCount(colorType), stencil, glInfo);
SKSurface surface = SKSurface.Create(contextOpenGL, renderTarget, GRSurfaceOrigin.BottomLeft, colorType);
SKCanvas canvas = surface.Canvas;
// draw the stuff
var bgColor = field.GetBackgroundColor();
canvas.Clear(new SKColor(bgColor.R, bgColor.G, bgColor.B));
// draw circles at every corner
var paint = new SKPaint {
Color = new SKColor(255, 255, 255), IsAntialias = true
};
float radius = 2;
for (int cornerIndex = 0; cornerIndex < field.corners.Length; cornerIndex++)
{
canvas.DrawCircle((float)field.corners[cornerIndex].X, (float)field.corners[cornerIndex].Y, radius, paint);
}
// draw lines between every corner and every other corner
for (int i = 0; i < field.corners.Length; i++)
{
for (int j = 0; j < field.corners.Length; j++)
{
double distance = field.GetDistance(i, j);
if (distance < maxVisibleDistance && distance != 0)
{
SKPoint pt1 = new SKPoint((float)field.corners[i].X, (float)field.corners[i].Y);
SKPoint pt2 = new SKPoint((float)field.corners[j].X, (float)field.corners[j].Y);
double distanceFraction = distance / maxVisibleDistance;
byte alpha = (byte)(255 - distanceFraction * 256);
var linePaint = new SKPaint {
Color = new SKColor(255, 255, 255, alpha), IsAntialias = true
};
canvas.DrawLine(pt1, pt2, linePaint);
}
}
}
// Force a display
surface.Canvas.Flush();
glControl1.SwapBuffers();
// dispose to prevent memory access violations while exiting
renderTarget?.Dispose();
contextOpenGL?.Dispose();
canvas?.Dispose();
surface?.Dispose();
// update the FPS display
Text = field.GetBenchmarkMessage();
}
public void Dispose()
{
Result?.Dispose();
_canvas?.Dispose();
_surface?.Dispose();
}
public void Dispose()
{
textPaint.Dispose();
canvas.Dispose();
Bitmap.Dispose();
}
public void PostProcess()
{
for (var i = 0; i < Images.Count; i++)
if (Images[i] != OriginImages[i])
Images[i].Dispose();
Images = OriginImages;
if(Reverse)
{
Images = Images.Select((originImg) =>
{
var bitmap = new SKBitmap(originImg.Width, originImg.Height, SKColorType.Bgra8888, SKAlphaType.Premul);
using (var canvas = new SKCanvas(bitmap))
{
canvas.Clear();
canvas.Scale(-1, 1);
canvas.DrawBitmap(originImg, new SKRectI(0, 0, originImg.Width, originImg.Height), new SKRectI(-originImg.Width, 0, 0, originImg.Height));
canvas.Flush();
canvas.Dispose();
}
return bitmap;
}).ToList();
}
if(ClipTransparent)
{
var clipList = new SKRectI[Images.Count];
for (var i = 0; i < Images.Count; i++)
{
var bitmap = Images[i];
var clip = new SKRectI();
if (ClipTransparent)
{
// Clip X
for (var x = 0; x < bitmap.Width; x++)
{
if (!ColumnTransparentScan(bitmap, x))
{
clip.Left = x;
break;
}
}
for (var x = bitmap.Width - 1; x >= 0; x--)
{
if (!ColumnTransparentScan(bitmap, x))
{
clip.Right = x + 1;
break;
}
}
// Clip Y
for (var y = 0; y < bitmap.Height; y++)
{
if (!RowTransparentScan(bitmap, y))
{
clip.Top = y;
break;
}
}
for (var y = bitmap.Height - 1; y >= 0; y--)
{
if (!RowTransparentScan(bitmap, y))
{
clip.Bottom = y + 1;
break;
}
}
}
clipList[i] = clip;
}
var minX = clipList.Select(rect => rect.Left).Min();
var minY = clipList.Select(rect => rect.Top).Min();
var images = new List<SKBitmap>();
for (var i = 0; i < Images.Count; i++)
{
var clip = clipList[i];
clip.Left = minX;
clip.Top = minY;
var bitmap = new SKBitmap(clip.Width, clip.Height, SKColorType.Bgra8888, SKAlphaType.Premul);
using (var canvas = new SKCanvas(bitmap))
{
canvas.Clear();
canvas.DrawBitmap(Images[i], clip, new SKRectI(0, 0, clip.Width, clip.Height));
canvas.Flush();
canvas.Dispose();
}
images.Add(bitmap);
if (Images != OriginImages)
Images[i].Dispose();
}
Images = images;
}
}
private byte[] CreateImage()
{
this.GetType().Assembly.GetManifestResourceNames();
var assembly = typeof(MainPage).GetTypeInfo().Assembly;
var webClient = new WebClient();
byte[] imageData = webClient.DownloadData("https://kasikornbank.com/SiteCollectionDocuments/about/img/logo/logo.png");
var resizeFactor = 1f;
SKBitmap bitmap = SKBitmap.Decode(imageData);
var canvasHeight = (int)Math.Round(bitmap.Height * resizeFactor) + 100;
var canvasWidth = (int)Math.Round(bitmap.Width * resizeFactor) + 20;
toBitmap = new SKBitmap(canvasWidth, canvasHeight, bitmap.ColorType, bitmap.AlphaType);
canvas = new SKCanvas(toBitmap);
canvas.Clear(SKColors.White);
canvas.SetMatrix(SKMatrix.MakeScale(resizeFactor, resizeFactor));
SKPaint grayscalePaint = new SKPaint()
{
ColorFilter =
SKColorFilter.CreateColorMatrix(new float[]
{
0.95f, 0.10f, 0.10f, 0, 0,
0.10f, 0.95f, 0.10f, 0, 0,
0.10f, 0.10f, 0.95f, 0, 0,
0, 0, 0, 1, 0
})
};
canvas.DrawBitmap(bitmap, 10, 50, grayscalePaint);
canvas.ResetMatrix();
var fontStream = assembly.GetManifestResourceStream("ReceiptMaker.Media.THSarabunNew.ttf");
var font = SKTypeface.FromStream(fontStream);
var boldFontStream = assembly.GetManifestResourceStream("ReceiptMaker.Media.THSarabunNewBold.ttf");
var boldFont = SKTypeface.FromStream(boldFontStream);
var headerBrush = new SKPaint
{
Typeface = boldFont,
TextSize = 50.0f,
IsAntialias = true,
StrokeWidth = 10.0f,
Color = new SKColor(0, 0, 0, 255),
TextAlign = SKTextAlign.Center,
TextEncoding = SKTextEncoding.Utf32
};
var subheaderBrush = new SKPaint
{
Typeface = font,
TextSize = 40.0f,
IsAntialias = true,
Color = new SKColor(115, 111, 110, 255),
TextAlign = SKTextAlign.Center
};
var bankNameBrush = new SKPaint
{
Typeface = font,
TextSize = 45.0f,
IsAntialias = true,
Color = new SKColor(115, 111, 110, 255),
TextAlign = SKTextAlign.Center
};
var accountNumber = new SKPaint
{
Typeface = boldFont,
TextSize = 45.0f,
IsAntialias = true,
StrokeWidth = 10.0f,
Color = new SKColor(0, 0, 0, 255),
TextAlign = SKTextAlign.Center
};
var dateNumberDetailHeaderBrush = new SKPaint
{
Typeface = font,
TextSize = 40.0f,
IsAntialias = true,
StrokeWidth = 10.0f,
Color = new SKColor(115, 111, 110, 255),
TextAlign = SKTextAlign.Center
};
var dateNumberDetailBrush = new SKPaint
{
Typeface = boldFont,
TextSize = 40.0f,
IsAntialias = true,
StrokeWidth = 10.0f,
Color = new SKColor(0, 0, 0, 255),
TextAlign = SKTextAlign.Center
};
var costDetailBrush = new SKPaint
{
Typeface = boldFont,
TextSize = 40.0f,
IsAntialias = true,
StrokeWidth = 10.0f,
Color = new SKColor(0, 0, 0, 255),
TextAlign = SKTextAlign.Center
};
int scale = 14;
canvas.DrawText("โอนเงินผ่าน K-Mobile Banking PLUS",
bitmap.Width / 2, canvasHeight / scale * 1, headerBrush);
canvas.DrawText("ทำรายการสำเร็จ",
bitmap.Width / 2, canvasHeight / scale * 2, subheaderBrush);
canvas.DrawText("จาก",
bitmap.Width / 4, canvasHeight / scale * 3, bankNameBrush);
canvas.DrawText("โอนเข้า",
bitmap.Width / 4 * 3, canvasHeight / scale * 3, bankNameBrush);
canvas.DrawText("ธ.กสิกรไทย",
bitmap.Width / 4, canvasHeight / scale * 6, bankNameBrush);
canvas.DrawText("ธ.กสิกรไทย",
bitmap.Width / 4 * 3, canvasHeight / scale * 6, bankNameBrush);
canvas.DrawText("XXX-2-XXXXX-X",
bitmap.Width / 4, canvasHeight / scale * 7, accountNumber);
canvas.DrawText("XXX-2-XXXXX-X",
bitmap.Width / 4 * 3, canvasHeight / scale * 7, accountNumber);
canvas.DrawText("นาย ชื่อ สกุล",
bitmap.Width / 4 * 3, canvasHeight / scale * 8, bankNameBrush);
canvas.DrawText("วันที่ทำรายการ",
bitmap.Width / 4, canvasHeight / scale * 10, dateNumberDetailHeaderBrush);
canvas.DrawText(DateTime.Now.ToString("dd/MM/yy hh:mm"),
bitmap.Width / 4, canvasHeight / scale * 11, dateNumberDetailBrush);
canvas.DrawText("เลขที่รายการ",
bitmap.Width / 4 * 3, canvasHeight / scale * 10, dateNumberDetailHeaderBrush);
canvas.DrawText("150805172258630",
bitmap.Width / 4 * 3, canvasHeight / scale * 11, dateNumberDetailBrush);
canvas.DrawText("จำนวนเงิน",
bitmap.Width / 4, canvasHeight / scale * 13, dateNumberDetailHeaderBrush);
canvas.DrawText("350.00 บาท",
bitmap.Width / 4, canvasHeight / scale * 14, costDetailBrush);
canvas.DrawText("ค่าธรรมเนียม",
bitmap.Width / 4 * 3, canvasHeight / scale * 13, dateNumberDetailHeaderBrush);
canvas.DrawText("0.00 บาท",
bitmap.Width / 4 * 3, canvasHeight / scale * 14, costDetailBrush);
canvas.Flush();
var image = SKImage.FromBitmap(toBitmap);
var data = image.Encode(SKEncodedImageFormat.Png, 90);
return(data.ToArray());
data.Dispose();
image.Dispose();
canvas.Dispose();
//brush.Dispose();
font.Dispose();
toBitmap.Dispose();
bitmap.Dispose();
}
