static void HandleMapNewTileAvailable(MapViewport map, Graphics g, Envelope box, Image bm, int sourceWidth, int sourceHeight, ImageAttributes imageAttributes)
{
try
{
var min = map.WorldToImage(box.Min());
var max = map.WorldToImage(box.Max());
min = new PointF((float)Math.Round(min.X), (float)Math.Round(min.Y));
max = new PointF((float)Math.Round(max.X), (float)Math.Round(max.Y));
using (var ia = (ImageAttributes)imageAttributes.Clone())
{
g.DrawImage(bm,
new Rectangle((int)min.X, (int)max.Y, (int)(max.X - min.X), (int)(min.Y - max.Y)),
0, 0,
sourceWidth, sourceHeight,
GraphicsUnit.Pixel,
ia);
}
// g.Dispose();
}
catch (Exception ex)
{
Logger.Warn(ex.Message, ex);
//this can be a GDI+ Hell Exception...
}
}
/// <summary>
/// Gets the manipulation of the colors in an image to an effect.
/// </summary>
/// <param name="threshold">Effect type.</param>
/// <returns>
/// A <see cref="T:System.Drawing.Imaging.ImageAttributes" /> object that contains the information about how bitmap colors are manipulated.
/// </returns>
public static ImageAttributes GetImageAttributesFromOpacityValueEffect(float threshold)
{
ImageAttributes imageAttributes;
ImageAttributes tempImageAttributes = null;
try
{
tempImageAttributes = new ImageAttributes();
tempImageAttributes.SetColorMatrix(new ColorMatrix {
Matrix33 = threshold / 100.0f
});
imageAttributes = (ImageAttributes)tempImageAttributes.Clone();
}
finally
{
if (tempImageAttributes != null)
{
tempImageAttributes.Dispose();
}
}
return(imageAttributes);
}
/// <summary>
/// Gets the manipulation of the colors in an image to an effect.
/// </summary>
/// <param name="effect">Effect type.</param>
/// <returns>
/// A <see cref="T:System.Drawing.Imaging.ImageAttributes" /> object that contains the information about how bitmap colors are manipulated.
/// </returns>
public static ImageAttributes GetImageAttributesFromEffect(KnownEffectType effect)
{
var newColorMatrix = new ColorMatrix();
switch (effect)
{
case KnownEffectType.None:
break;
case KnownEffectType.Disabled:
newColorMatrix = DisabledColorMatrix;
break;
case KnownEffectType.GrayScale:
newColorMatrix = GrayScaleColorMatrix;
break;
case KnownEffectType.GrayScaleRed:
newColorMatrix = GrayScaleRedColorMatrix;
break;
case KnownEffectType.GrayScaleGreen:
newColorMatrix = GrayScaleGreenColorMatrix;
break;
case KnownEffectType.Brightness:
newColorMatrix = BrightnessColorMatrix;
break;
case KnownEffectType.MoreBrightness:
newColorMatrix = MoreBrightnessColorMatrix;
break;
case KnownEffectType.Dark:
newColorMatrix = DarkColorMatrix;
break;
case KnownEffectType.MoreDark:
newColorMatrix = MoreDarkColorMatrix;
break;
case KnownEffectType.GrayScaleBlue:
newColorMatrix = GrayScaleBlueColorMatrix;
break;
case KnownEffectType.OpacityPercent05:
newColorMatrix.Matrix33 = 0.05f;
break;
case KnownEffectType.OpacityPercent10:
newColorMatrix.Matrix33 = 0.10f;
break;
case KnownEffectType.OpacityPercent20:
newColorMatrix.Matrix33 = 0.20f;
break;
case KnownEffectType.OpacityPercent30:
newColorMatrix.Matrix33 = 0.30f;
break;
case KnownEffectType.OpacityPercent40:
newColorMatrix.Matrix33 = 0.40f;
break;
case KnownEffectType.OpacityPercent50:
newColorMatrix.Matrix33 = 0.50f;
break;
case KnownEffectType.OpacityPercent60:
newColorMatrix.Matrix33 = 0.60f;
break;
case KnownEffectType.OpacityPercent70:
newColorMatrix.Matrix33 = 0.70f;
break;
case KnownEffectType.OpacityPercent80:
newColorMatrix.Matrix33 = 0.80f;
break;
case KnownEffectType.OpacityPercent90:
newColorMatrix.Matrix33 = 0.90f;
break;
}
ImageAttributes imageAttributes;
ImageAttributes tempImageAttributes = null;
try
{
tempImageAttributes = new ImageAttributes();
tempImageAttributes.SetColorMatrix(newColorMatrix);
imageAttributes = (ImageAttributes)tempImageAttributes.Clone();
}
finally
{
if (tempImageAttributes != null)
{
tempImageAttributes.Dispose();
}
}
return(imageAttributes);
}
