/// <summary>
/// Returns a rectangle representing the given ring - if it is an axis-parallel rectangle. Otherwise returns null;
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
public RectangleF?GetRingAsRectF(string name)
{
var poly = this[name];
var rect = PolygonMath.GetBoundingBox(poly);
var poly2 = PolygonMath.ToPoly(rect);
return(PolygonMath.ArraysEqual(poly, poly2) ? (RectangleF?)rect : null);
}
protected virtual void AssertLayout(string sourceSize, string resizeSettings, Action <RectangleF> assertImage, Action <SizeF> assertCanvas)
{
var sourceSizeSettings = new ResizeSettings(sourceSize);
var result = _imageLayoutBuilder.BuildLayout(new Size(sourceSizeSettings.Width, sourceSizeSettings.Height), new ResizeSettings(resizeSettings));
if (assertCanvas != null)
{
assertCanvas(result.CanvasSize);
}
if (assertImage != null)
{
assertImage(result.Image);
}
var maxWidth = (int)(Math.Max(result.Image.Width, result.CanvasSize.Width));
var maxHeight = (int)(Math.Max(result.Image.Height, result.CanvasSize.Height));
var padding = (int)Math.Max(Math.Abs(result.Image.Y), Math.Abs(result.Image.X)) + 20;
if ((maxWidth + padding) < 400)
{
padding = (400 - maxWidth) / 2;
}
// create a bitmap for visualizing
var bitmapSize = new RectangleF(0, 0, maxWidth + padding * 2, maxHeight + (padding * 2));
using (var bmp = new Bitmap((int)bitmapSize.Width, (int)bitmapSize.Height))
{
using (var gfx = Graphics.FromImage(bmp))
{
// set the background
gfx.FillRectangle(new SolidBrush(Color.White), 0, 0, bmp.Width, bmp.Height);
// output the results
gfx.DrawString("Source: " + sourceSize, new Font("Thaoma", 8), Brushes.Black, new RectangleF(0, 0, bmp.Width, bmp.Height), new StringFormat {
Alignment = StringAlignment.Near, LineAlignment = StringAlignment.Near
});
gfx.DrawString("Destination: " + resizeSettings, new Font("Thaoma", 8), Brushes.Black, new RectangleF(0, 0, bmp.Width, bmp.Height), new StringFormat {
Alignment = StringAlignment.Far, LineAlignment = StringAlignment.Near
});
gfx.DrawString("Canvas: " + result.CanvasSize.Width + "x" + result.CanvasSize.Height, new Font("Thaoma", 8), Brushes.Green, new RectangleF(0, 0, bmp.Width, bmp.Height), new StringFormat {
Alignment = StringAlignment.Near, LineAlignment = StringAlignment.Far
});
gfx.DrawString("Image: " + result.Image.Width + "x" + result.Image.Height, new Font("Thaoma", 8), Brushes.Red, new RectangleF(0, 0, bmp.Width, bmp.Height), new StringFormat {
Alignment = StringAlignment.Far, LineAlignment = StringAlignment.Far
});
//PolygonMath.AlignWith()
var canvas = new RectangleF(padding, padding, result.CanvasSize.Width, result.CanvasSize.Height);
var image = new RectangleF(padding + result.Image.X, padding + result.Image.Y, result.Image.Width, result.Image.Height);
var points = new List <PointF>();
points.AddRange(PolygonMath.ToPoly(canvas));
points.AddRange(PolygonMath.ToPoly(image));
points = PolygonMath.AlignWith(points.ToArray(), PolygonMath.ToPoly(bitmapSize), ContentAlignment.MiddleCenter).ToList();
canvas = PolygonMath.GetBoundingBox(points.Take(4).ToArray());
image = PolygonMath.GetBoundingBox(points.Skip(4).Take(4).ToArray());
gfx.FillRectangle(new SolidBrush(Color.Green), canvas);
gfx.DrawRectangle(new Pen(Color.Red, 2), image.X, image.Y, image.Width, image.Height);
}
var fileName = sourceSize + "--" + resizeSettings + ".bmp";
var filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, fileName);
if (File.Exists(filePath))
{
File.Delete(filePath);
}
bmp.Save(filePath, ImageFormat.Bmp);
Trace.WriteLine("Source: " + sourceSize);
Trace.WriteLine("Destination: " + resizeSettings);
Trace.WriteLine(" Result: " + filePath);
}
}
public LayoutInformation(ImageState state)
{
this.instructions = new NameValueCollection(state.settings);
this.sourceRect = new SizeOnly(state.originalSize);
this.finalRect = new SizeOnly(state.destSize);
this.imageSourcePoly = new PolyRect(state.copyRect);
if (state.layout.ContainsRing("image"))
{
this.imageDestPoly = new PolyRect(state.layout["image"]);
}
if (state.layout.ContainsRing("imageArea"))
{
this.imageDestAreaPoly = new PolyRect(state.layout["imageArea"]);
}
// Check to see if sFlip/sRotate has altered the original raw image
// rectangle. The check must be the same as in
// ImageBuilder.PrepareSourceBitmap(). Note that the adjustment
// happens only when there's an actual bitmap, regardless of the
// sFlip/sRotate settings.
if (state.sourceBitmap != null &&
(state.settings.SourceFlip != RotateFlipType.RotateNoneFlipNone ||
!string.IsNullOrEmpty(state.settings["sRotate"])))
{
// We need to calculate the original rect/poly by *reversing* the
// requested sFlip/sRotate. We determine what the requested change
// was, then calculate the reverse.
var angle = state.settings.Get <double>("sRotate", 0);
var flipRotate = (int)PolygonMath.CombineFlipAndRotate(state.settings.SourceFlip, angle);
var copyPoly = PolygonMath.ToPoly(state.copyRect);
var trueOriginalSize = state.originalSize;
// The RotateFlipType values are ordered such that odd values
// transpose the size of the rectangle, %4 gives the rotation
// and /4 (=> 0 or 1) whether there's been an x-flip. We can
// use this to streamline our calculations.
if (flipRotate % 2 == 1)
{
trueOriginalSize = new Size(state.originalSize.Height, state.originalSize.Width);
}
this.preAdjustedSourceRect = new SizeOnly(trueOriginalSize);
// Remember that the sFlip/sRotate change performed the rotation
// first and then the flip, so we have to do the opposite to go
// backwards.
if (flipRotate / 4 == 1)
{
copyPoly = PolygonMath.ScalePoints(copyPoly, -1, 1, PointF.Empty);
copyPoly = PolygonMath.MovePoly(copyPoly, new PointF(trueOriginalSize.Width, 0));
}
// It's possible to calculate a rotation-origin that will place
// the original pre-sRotate (0,0) point back at (0,0) again...
// but since it involves sqrt(), there would be rounding errors
// that we should be able to avoid. (We might, in fact, want to
// avoid using PolygonMath entirely, and hand-map the points
// backwards for accuracy.)
switch (flipRotate % 4)
{
case 0: // no rotation
// no-op!
break;
case 1: // 90 degrees, clockwise
copyPoly = PolygonMath.RotatePoly(copyPoly, -90);
copyPoly = PolygonMath.MovePoly(copyPoly, new PointF(0, trueOriginalSize.Height));
break;
case 2: // 180 degrees, clockwise
copyPoly = PolygonMath.RotatePoly(copyPoly, -180);
copyPoly = PolygonMath.MovePoly(copyPoly, new PointF(trueOriginalSize.Width, trueOriginalSize.Height));
break;
case 3: // 270 degrees, clockwise
copyPoly = PolygonMath.RotatePoly(copyPoly, -270);
copyPoly = PolygonMath.MovePoly(copyPoly, new PointF(trueOriginalSize.Width, 0));
break;
}
this.preAdjustedImageSourcePoly = new PolyRect(copyPoly);
}
}
public override void RenderTo(Resizing.ImageState s)
{
if (string.IsNullOrEmpty(Text))
{
return;
}
string finalText = Text;
if (finalText.IndexOf('#') > -1)
{
Regex r = new Regex("\\#\\{([^}]+)\\}");
finalText = r.Replace(finalText, delegate(Match m){
string val = s.settings[m.Groups[1].Value];
if (val == null)
{
return("");
}
else
{
return(val);
}
});
}
SizeF naturalSize = SizeF.Empty;
SizeF unrotatedSize = SizeF.Empty;
RectangleF bounds = this.CalculateLayerCoordinates(s, delegate(double maxwidth, double maxheight) {
using (Font f = GetFont())
using (StringFormat sf = GetFormat()){
naturalSize = s.destGraphics.MeasureString(finalText, f, new PointF(), sf);
SizeF size = naturalSize;
unrotatedSize = Fill ? PolygonMath.ScaleInside(size, new SizeF((float)maxwidth, (float)maxheight)) : size;
if (Angle != 0)
{
size = PolygonMath.GetBoundingBox(PolygonMath.RotatePoly(PolygonMath.ToPoly(new RectangleF(new PointF(0, 0), size)), Angle)).Size;
}
if (Fill)
{
size = PolygonMath.ScaleInside(size, new SizeF((float)maxwidth, (float)maxheight));
}
f.FontFamily.Dispose();
return(PolygonMath.RoundPoints(size));
}
}, true);
using (Font f = GetFont()) {
s.destGraphics.SmoothingMode = SmoothingMode.HighQuality;
s.destGraphics.TextRenderingHint = Rendering; // Utils.parseEnum<TextRenderingHint>(s.settings["watermark.rendering"], this.Rendering); ;
s.destGraphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
s.destGraphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
s.destGraphics.CompositingMode = CompositingMode.SourceOver;
s.destGraphics.CompositingQuality = CompositingQuality.HighQuality;
s.destGraphics.ResetTransform();
if (Angle != 0)
{
s.destGraphics.RotateTransform((float)Angle);
}
s.destGraphics.ScaleTransform(unrotatedSize.Width / naturalSize.Width, unrotatedSize.Height / naturalSize.Height);
s.destGraphics.TranslateTransform(bounds.X, bounds.Y, MatrixOrder.Append);
using (StringFormat sf = GetFormat()) {
DrawString(s.destGraphics, finalText, f, new Point(0, 0), sf);
}
s.destGraphics.ResetTransform();
f.FontFamily.Dispose();
}
}
