/// <summary>
/// 创建填充背景使用的画刷对象
/// </summary>
/// <param name="left">要绘制背景区域的左端坐标</param>
/// <param name="top">要绘制背景区域的顶端坐标</param>
/// <param name="width">要绘制背景区域的宽度</param>
/// <param name="height">要绘制背景区域的高度</param>
/// <param name="unit">绘制图形使用的单位</param>
/// <returns>创建的画刷对象</returns>
/// <remarks>
/// 若设置了背景图片则创建图片样式的画刷对象，若设置了图案则创建带图案的画刷对象，
/// 若设置了渐变设置则创建带渐变的画刷对象，否则创建纯色画刷对象。
/// </remarks>
public Brush CreateBrush(
float left,
float top,
float width,
float height,
System.Drawing.GraphicsUnit unit)
{
if (intStyle == XBrushStyleConst.Disabled)
{
return(null);
}
if (myImage != null && myImage.Value != null)
{
System.Drawing.TextureBrush brush = new TextureBrush(myImage.Value);
if (bolRepeat)
{
brush.WrapMode = System.Drawing.Drawing2D.WrapMode.Tile;
}
else
{
brush.WrapMode = System.Drawing.Drawing2D.WrapMode.Clamp;
}
float rate = (float)GraphicsUnitConvert.GetRate(
unit,
System.Drawing.GraphicsUnit.Pixel);
//brush.Transform.Translate(fOffsetX, fOffsetY);
brush.TranslateTransform(fOffsetX, fOffsetY);
brush.ScaleTransform(rate, rate);
return(brush);
}
if (intStyle == XBrushStyleConst.Solid)
{
return(new SolidBrush(intColor));
}
else
{
if (( int )intStyle < 1000)
{
System.Drawing.Drawing2D.HatchStyle style = (System.Drawing.Drawing2D.HatchStyle)intStyle;
return(new System.Drawing.Drawing2D.HatchBrush(
(System.Drawing.Drawing2D.HatchStyle)intStyle,
intColor,
intColor2));
}
else
{
return(new System.Drawing.Drawing2D.LinearGradientBrush(
new RectangleF(left, top, width, height),
intColor,
intColor2,
(System.Drawing.Drawing2D.LinearGradientMode)(intStyle - 1000)));
}
}
//return new SolidBrush(intColor);
}
private void ChangeColorFromColorPicker(Control colorPicker, EventArgs e)
{
if (colorPicker is SolidColorPicker)
{
SolidColorPicker solidColorPicker = (SolidColorPicker)colorPicker;
Color newColor = solidColorPicker.SelectedColor;
GeoColor newGeoColor = GeoColor2MediaColorConverter.ConvertBack(newColor);
hatchColorPicker.SyncBaseColor(DrawingColorToMediaColorConverter.ConvertBack(newColor));
gradientPicker.SyncBaseColor(DrawingColorToMediaColorConverter.ConvertBack(newColor));
SelectedBrush = new GeoSolidBrush(newGeoColor);
}
else if (colorPicker is HatchPicker)
{
HatchPicker hatchPicker = (HatchPicker)colorPicker;
System.Drawing.Drawing2D.HatchStyle drawingHatchStyle = hatchPicker.SelectedHatchStyle;
GeoHatchStyle geoHatchStyle = GeoHatchStyle2DrawingHatchStyle.ConvertBack(drawingHatchStyle);
//solidColorPicker.SyncBaseColor(hatchPicker.ForegroundColor);
gradientPicker.SyncBaseColor(hatchPicker.ForegroundColor);
SelectedBrush = new GeoHatchBrush(geoHatchStyle, GeoColor2DrawingColorConverter.ConvertBack(hatchPicker.ForegroundColor)
, GeoColor2DrawingColorConverter.ConvertBack(hatchColorPicker.BackgroundColor));
}
else if (colorPicker is TexturePicker)
{
PropertyChangedEventArgs args = (PropertyChangedEventArgs)e;
TexturePicker texturePicker = (TexturePicker)colorPicker;
if (args.PropertyName == "SelectedBrush")
{
ImageBrush mediaBrush = texturePicker.SelectedBrush as ImageBrush;
if (mediaBrush != null)
{
BitmapImage imageSource = (BitmapImage)mediaBrush.ImageSource;
if (imageSource != null)
{
SelectedBrush = new GeoTextureBrush(new GeoImage(imageSource.UriSource.LocalPath));
}
}
}
}
else if (colorPicker is DrawingLinearGradientBrushPicker)
{
DrawingLinearGradientBrushPicker linearPicker = (DrawingLinearGradientBrushPicker)colorPicker;
LinearGradientBrushEntity brushEntity = linearPicker.SelectedBrush;
solidColorPicker.SyncBaseColor(brushEntity.StartColor);
hatchColorPicker.SyncBaseColor(brushEntity.StartColor);
SelectedBrush = new GeoLinearGradientBrush(GeoColor2DrawingColorConverter.ConvertBack(brushEntity.StartColor),
GeoColor2DrawingColorConverter.ConvertBack(brushEntity.EndColor),
brushEntity.Angle);
}
}
public HatchBrush(System.Drawing.Drawing2D.HatchStyle hatchstyle, Color foreColor, Color backColor)
{
IntPtr zero = IntPtr.Zero;
int status = SafeNativeMethods.Gdip.GdipCreateHatchBrush((int)hatchstyle, foreColor.ToArgb(), backColor.ToArgb(), out zero);
if (status != 0)
{
throw SafeNativeMethods.Gdip.StatusException(status);
}
base.SetNativeBrushInternal(zero);
}
public static System.Drawing.Drawing2D.HatchStyle GetRandomHatchStyle(int hash)
{
//Random randomGen = new Random(hash.GetHashCode());
//int randomhatchindex = randomGen.Next(0, 6);
int randomhatchindex = hash > 6 ? 0 : hash;
System.Drawing.Drawing2D.HatchStyle style = new System.Drawing.Drawing2D.HatchStyle();
switch (randomhatchindex)
{
case 0:
style = System.Drawing.Drawing2D.HatchStyle.BackwardDiagonal;
break;
case 1:
style = System.Drawing.Drawing2D.HatchStyle.DashedVertical;
break;
case 2:
style = System.Drawing.Drawing2D.HatchStyle.Cross;
break;
case 3:
style = System.Drawing.Drawing2D.HatchStyle.DiagonalCross;
break;
case 4:
style = System.Drawing.Drawing2D.HatchStyle.HorizontalBrick;
break;
case 5:
style = System.Drawing.Drawing2D.HatchStyle.LightDownwardDiagonal;
break;
case 6:
style = System.Drawing.Drawing2D.HatchStyle.LightUpwardDiagonal;
break;
default:
break;
}
return(style);
}
public surface_store(int i_surf_id, List <point2d> i_surface_nodes, List <edge2d> i_surface_edges, int surf_count)
{
this._surface_id = i_surf_id; // add surface id
surface_nodes.AddRange(i_surface_nodes);
surface_edges.AddRange(i_surface_edges);
List <PointF> temp_sur_pts = new List <PointF>();
//foreach (point2d pt in this.surface_nodes)
//{
// temp_sur_pts.Add(pt.get_point());
//}
temp_sur_pts.Add(this.surface_edges[0].start_pt.get_point()); // Add the first point of the surface edge
foreach (edge2d ed in this.surface_edges)
{
temp_sur_pts.Add(ed.end_pt.get_point()); // since all the surface edges are interconnected only store the end points
//surface_path.AddLine(ed.start_pt.get_point(), ed.end_pt.get_point());
}
// Set the path of outter surface
System.Drawing.Drawing2D.GraphicsPath surface_path = new System.Drawing.Drawing2D.GraphicsPath();
surface_path.StartFigure();
surface_path.AddPolygon(temp_sur_pts.ToArray());
surface_path.CloseFigure();
// set region
surface_region = new Region(surface_path);
Color hatch_color = Form1.the_static_class.GetRandomColor(surf_count);
System.Drawing.Drawing2D.HatchStyle hatch_style = Form1.the_static_class.GetRandomHatchStyle(surf_count);
Color trans_color = Color.FromArgb(0, 10, 10, 10);
tri_brush = new System.Drawing.Drawing2D.HatchBrush(hatch_style, hatch_color, trans_color);
signed_area_chk = this.SignedPolygonArea();
surface_area = Math.Abs(signed_area_chk);
}
public HatchBrush GetHatchBrush(HatchStyle style, SolidColor foreColor, SolidColor backColor)
{
HatchStyleBrushInfo info = new HatchStyleBrushInfo(style, foreColor, backColor);
lock (this.hatchBrushes)
{
if (hatchBrushes.TryGetValue(info, out var hb))
{
return(hb);
}
else
{
HatchBrush b = new HatchBrush(style, foreColor, backColor);
hatchBrushes.Add(info, b);
Logger.Log("resource pool", "add hatch brush, count: " + hatchBrushes.Count);
return(b);
}
}
}
public HatchStyleBrushInfo(HatchStyle style, SolidColor foreColor, SolidColor backgroundColor)
{
this.style = style;
this.foreColor = foreColor;
this.backgroundColor = backgroundColor;
}
public HatchBrush(System.Drawing.Drawing2D.HatchStyle hatchstyle, Color foreColor) : this(hatchstyle, foreColor, Color.FromArgb(-16777216))
{
}
private void SetSelectedBrush(GeoBrush geoBrush)
{
if (!isTemplateApplied)
{
return;
}
if (geoBrush is GeoSolidBrush)
{
SelectTabItem(solidColorBrushTabItem);
Color selectedMediaColor = GeoColor2MediaColorConverter.Convert(((GeoSolidBrush)geoBrush).Color);
if (solidColorPicker.SelectedColor != selectedMediaColor)
{
solidColorPicker.SelectedColor = selectedMediaColor;
}
}
else if (geoBrush is GeoLinearGradientBrush)
{
SelectTabItem(gradientTabItem);
GeoLinearGradientBrush geoGradientBrush = (GeoLinearGradientBrush)geoBrush;
System.Drawing.Color drawingStartColor = GeoColor2DrawingColorConverter.Convert(geoGradientBrush.StartColor);
System.Drawing.Color drawingEndColor = GeoColor2DrawingColorConverter.Convert(geoGradientBrush.EndColor);
if (gradientPicker.SelectedBrush.StartColor != drawingStartColor ||
gradientPicker.SelectedBrush.EndColor != drawingEndColor ||
gradientPicker.SelectedBrush.Angle - geoGradientBrush.DirectionAngle > 1)
{
gradientPicker.SelectedBrush = new LinearGradientBrushEntity
{
StartColor = drawingStartColor,
EndColor = drawingEndColor,
Angle = (int)geoGradientBrush.DirectionAngle
}
}
;
}
else if (geoBrush is GeoHatchBrush)
{
GeoHatchBrush geoHatchBrush = (GeoHatchBrush)geoBrush;
SelectTabItem(hatchBrushTabItem);
System.Drawing.Drawing2D.HatchStyle drawingHatchStyle = GeoHatchStyle2DrawingHatchStyle.Convert(geoHatchBrush.HatchStyle);
System.Drawing.Color drawingBackgroundColor = GeoColor2DrawingColorConverter.Convert(geoHatchBrush.BackgroundColor);
System.Drawing.Color drawingForegroundColor = GeoColor2DrawingColorConverter.Convert(geoHatchBrush.ForegroundColor);
if (hatchColorPicker.SelectedHatchStyle != drawingHatchStyle ||
drawingBackgroundColor != hatchColorPicker.BackgroundColor ||
drawingForegroundColor != hatchColorPicker.ForegroundColor)
{
hatchColorPicker.BackgroundColor = drawingBackgroundColor;
hatchColorPicker.ForegroundColor = drawingForegroundColor;
hatchColorPicker.SelectedHatchStyle = drawingHatchStyle;
}
}
else if (geoBrush is GeoTextureBrush)
{
SelectTabItem(textureTabItem);
textureTabItem.IsSelected = true;
GeoTextureBrush geoTextureBrush = (GeoTextureBrush)geoBrush;
if (textureColorPicker.SelectedBrush == null || !textureColorPicker.SelectedBrush.GetValue(Canvas.TagProperty).Equals(geoTextureBrush.GeoImage.GetPathFilename()))
{
textureColorPicker.SelectedBrush = GeoTextureBrushToImageBrushConverter.Convert(geoTextureBrush);
}
}
}
public static byte[] GetCaptchaImage(string sCaptchaText, System.Drawing.Imaging.ImageFormat format)
{
int iHeight = 80;
int iWidth = 190;
System.Random oRandom = new System.Random();
int[] aBackgroundNoiseColor = new int[] { 150, 150, 150 };
int[] aTextColor = new int[] { 0, 0, 0 };
int[] aFontEmSizes = new int[] { 15, 20, 25, 30, 35 };
string[] aFontNames = new string[]
{
"Comic Sans MS",
"Arial",
"Times New Roman",
"Georgia",
"Verdana",
"Geneva"
};
System.Drawing.FontStyle[] aFontStyles = new System.Drawing.FontStyle[]
{
System.Drawing.FontStyle.Bold,
System.Drawing.FontStyle.Italic,
System.Drawing.FontStyle.Regular,
System.Drawing.FontStyle.Strikeout,
System.Drawing.FontStyle.Underline
};
System.Drawing.Drawing2D.HatchStyle[] aHatchStyles = new System.Drawing.Drawing2D.HatchStyle[]
{
System.Drawing.Drawing2D.HatchStyle.BackwardDiagonal
, System.Drawing.Drawing2D.HatchStyle.Cross
, System.Drawing.Drawing2D.HatchStyle.DashedDownwardDiagonal
, System.Drawing.Drawing2D.HatchStyle.DashedHorizontal
, System.Drawing.Drawing2D.HatchStyle.DashedUpwardDiagonal
, System.Drawing.Drawing2D.HatchStyle.DashedVertical
, System.Drawing.Drawing2D.HatchStyle.DiagonalBrick
, System.Drawing.Drawing2D.HatchStyle.DiagonalCross
, System.Drawing.Drawing2D.HatchStyle.Divot
, System.Drawing.Drawing2D.HatchStyle.DottedDiamond
, System.Drawing.Drawing2D.HatchStyle.DottedGrid
, System.Drawing.Drawing2D.HatchStyle.ForwardDiagonal
, System.Drawing.Drawing2D.HatchStyle.Horizontal
, System.Drawing.Drawing2D.HatchStyle.HorizontalBrick
, System.Drawing.Drawing2D.HatchStyle.LargeCheckerBoard
, System.Drawing.Drawing2D.HatchStyle.LargeConfetti
, System.Drawing.Drawing2D.HatchStyle.LargeGrid
, System.Drawing.Drawing2D.HatchStyle.LightDownwardDiagonal
, System.Drawing.Drawing2D.HatchStyle.LightHorizontal
, System.Drawing.Drawing2D.HatchStyle.LightUpwardDiagonal
, System.Drawing.Drawing2D.HatchStyle.LightVertical
, System.Drawing.Drawing2D.HatchStyle.Max
, System.Drawing.Drawing2D.HatchStyle.Min
, System.Drawing.Drawing2D.HatchStyle.NarrowHorizontal
, System.Drawing.Drawing2D.HatchStyle.NarrowVertical
, System.Drawing.Drawing2D.HatchStyle.OutlinedDiamond
, System.Drawing.Drawing2D.HatchStyle.Plaid
, System.Drawing.Drawing2D.HatchStyle.Shingle
, System.Drawing.Drawing2D.HatchStyle.SmallCheckerBoard
, System.Drawing.Drawing2D.HatchStyle.SmallConfetti
, System.Drawing.Drawing2D.HatchStyle.SmallGrid
, System.Drawing.Drawing2D.HatchStyle.SolidDiamond
, System.Drawing.Drawing2D.HatchStyle.Sphere
, System.Drawing.Drawing2D.HatchStyle.Trellis
, System.Drawing.Drawing2D.HatchStyle.Vertical
, System.Drawing.Drawing2D.HatchStyle.Wave
, System.Drawing.Drawing2D.HatchStyle.Weave
, System.Drawing.Drawing2D.HatchStyle.WideDownwardDiagonal
, System.Drawing.Drawing2D.HatchStyle.WideUpwardDiagonal
, System.Drawing.Drawing2D.HatchStyle.ZigZag
};
//Creates an output Bitmap
System.Drawing.Bitmap oOutputBitmap = new System.Drawing.Bitmap(iWidth, iHeight
, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
System.Drawing.Graphics oGraphics = System.Drawing.Graphics.FromImage(oOutputBitmap);
oGraphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
//Create a Drawing area
System.Drawing.RectangleF oRectangleF =
new System.Drawing.RectangleF(0, 0, iWidth, iHeight);
System.Drawing.Brush oBrush = default(System.Drawing.Brush);
//Draw background (Lighter colors RGB 100 to 255)
oBrush = new System.Drawing.Drawing2D.HatchBrush(
aHatchStyles[oRandom.Next(aHatchStyles.Length - 1)]
, System.Drawing.Color.FromArgb
(
oRandom.Next(100, 255)
, oRandom.Next(100, 255)
, oRandom.Next(100, 255)
)
, System.Drawing.Color.White
);
oGraphics.FillRectangle(oBrush, oRectangleF);
System.Drawing.Drawing2D.Matrix oMatrix = new System.Drawing.Drawing2D.Matrix();
int i = 0;
for (i = 0; i <= sCaptchaText.Length - 1; i++)
{
oMatrix.Reset();
int iChars = sCaptchaText.Length;
int x = iWidth / (iChars + 1) * i;
int y = iHeight / 2;
//Rotate text Random
oMatrix.RotateAt(oRandom.Next(-40, 40), new System.Drawing.PointF(x, y));
oGraphics.Transform = oMatrix;
//Draw the letters with Random Font Type, Size and Color
oGraphics.DrawString
(
//Text
sCaptchaText.Substring(i, 1),
//Random Font Name and Style
new System.Drawing.Font(aFontNames[oRandom.Next(aFontNames.Length - 1)],
aFontEmSizes[oRandom.Next(aFontEmSizes.Length - 1)],
aFontStyles[oRandom.Next(aFontStyles.Length - 1)]),
//Random Color (Darker colors RGB 0 to 100)
new System.Drawing.SolidBrush(
System.Drawing.Color.FromArgb(
oRandom.Next(0, 100)
, oRandom.Next(0, 100)
, oRandom.Next(0, 100)))
, x
, oRandom.Next(10, 40)
);
oGraphics.ResetTransform();
}
byte[] captchaBytes = null;
using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
{
oOutputBitmap.Save(ms, format);
captchaBytes = ms.ToArray();
} // End Using ms
return(captchaBytes);
}
