protected override void OnPaint(PaintEventArgs e)
{
System.Drawing.Pen pen =
new System.Drawing.Pen(this.ForeColor, 0);
Rectangle rect = this.ClientRectangle;
rect.Width -= 1;
rect.Height -= 1;
System.Drawing.Brush backBrush =
new System.Drawing.Drawing2D.HatchBrush(
System.Drawing.Drawing2D.HatchStyle.SmallCheckerBoard,
this.ForeColor, this.BackColor);
e.Graphics.FillRectangle(backBrush, rect);
backBrush.Dispose();
if (_brush != null)
{
e.Graphics.FillRectangle(_brush, rect);
}
e.Graphics.DrawRectangle(pen, rect);
pen.Dispose();
}
//------------------------------------------------------------------------
private void CGanttTree_DragOver(object sender, DragEventArgs e)
{
UndrawZoneDestDragDrop();
if (e.Data.GetDataPresent(typeof(TreeNode)) && !LockEdition)
{
TreeNode nodeMoved = e.Data.GetData(typeof(TreeNode)) as TreeNode;
TreeNode nodeDest = null;
bool bAfter = false;
Point pt = PointToClient(new Point(e.X, e.Y));
GetDestDragDrop(nodeMoved, pt, ref nodeDest, ref bAfter);
if (nodeDest != null)
{
e.Effect = DragDropEffects.Move;
Rectangle rct = nodeDest.Bounds;
using (Graphics g = CreateGraphics())
{
Brush br = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.DottedGrid, Color.Black, Color.Blue);
int nY = rct.Top;
if (bAfter)
{
nY = rct.Bottom;
}
m_rectZoneDestDragDrop = new Rectangle(0, nY - 1, Width, 3);
g.FillRectangle(br, m_rectZoneDestDragDrop);
br.Dispose();
}
}
else
{
e.Effect = DragDropEffects.None;
m_rectZoneDestDragDrop = new Rectangle(0, 0, 0, 0);
}
}
}
private void pictureBox1_Paint(object sender, PaintEventArgs e)
{
if (this.Enabled)
{
System.Drawing.Drawing2D.HatchBrush hb = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.ForwardDiagonal, bkcolor, dwcolor);
Pen p = new Pen(dwcolor);
if (rect.Height < 2)
{
e.Graphics.DrawLine(p, rect.X, rect.Y, rect.X + Width, rect.Y);
}
else
{
e.Graphics.FillRectangle(hb, rect);
}
hb.Dispose();
p.Dispose();
}
}
protected override void OnPaint(PaintEventArgs e)
{
System.Drawing.Pen pen =
new System.Drawing.Pen(this.ForeColor, 0);
Rectangle rect = this.ClientRectangle;
rect.Width -= 1;
rect.Height -= 1;
System.Drawing.Brush backBrush =
new System.Drawing.Drawing2D.HatchBrush(
System.Drawing.Drawing2D.HatchStyle.SmallCheckerBoard,
this.ForeColor, this.BackColor);
e.Graphics.FillRectangle(backBrush, rect);
backBrush.Dispose();
if (_brush != null)
e.Graphics.FillRectangle(_brush, rect);
e.Graphics.DrawRectangle(pen, rect);
pen.Dispose();
}
/// <summary>
/// Evaluates the DrawStyle of the control and calls the appropriate
/// drawing function for content
/// </summary>
protected void DrawContent()
{
Graphics g = Graphics.FromImage(m_Output);
Rectangle Rect = new Rectangle(4, 11, Width - 8, Height - 21);
// Draw a nice checker box
System.Drawing.Drawing2D.HatchBrush Checker = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.LargeCheckerBoard, Color.Gray, Color.DarkGray);
g.FillRectangle(Checker, Rect);
Checker.Dispose();
// Draw a gradient box
System.Drawing.Drawing2D.GraphicsPath Path = new System.Drawing.Drawing2D.GraphicsPath();
Path.AddRectangle(Rect);
System.Drawing.Drawing2D.PathGradientBrush Gradient = new System.Drawing.Drawing2D.PathGradientBrush(Path);
Gradient.SurroundColors = new Color[] { Color.FromArgb(0, Color.White), Color.FromArgb(255, Color.White), Color.FromArgb(255, Color.White), Color.FromArgb(0, Color.White) };
Gradient.CenterPoint = new PointF(0.5f * (Rect.Left + Rect.Right), .5f * (Rect.Bottom + Rect.Top));
Gradient.CenterColor = Color.FromArgb(128, Color.White);
g.FillRectangle(Gradient, Rect);
Gradient.Dispose();
}
internal void DrawPlusMinusLines(Graphics g)
{
if (!IsInATreeListView)
{
return;
}
if (TreeListView._updating)
{
return;
}
Debug.Assert(!TreeListView.InvokeRequired);
if (!TreeListView.ShowPlusMinus || TreeListView.Columns.Count == 0)
{
return;
}
int itemLevel = Level;
Rectangle plusminusRect = GetBounds(TreeListViewItemBoundsPortion.PlusMinus);
Rectangle entireRect = GetBounds(TreeListViewItemBoundsPortion.Entire);
System.Drawing.Drawing2D.HatchBrush hb = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.Percent50, TreeListView.PlusMinusLineColor, BackColor);
Pen pen = new Pen(hb);
Point point1, point2;
#region Vertical line
point1 = new Point(
plusminusRect.Right - SystemInformation.SmallIconSize.Width / 2 - 1,
entireRect.Top);
point2 = new Point(point1.X, entireRect.Bottom);
// If ListView has no items that have the same level before this item
if (!HasLevelBeforeItem(itemLevel))
{
point1.Y += SystemInformation.SmallIconSize.Height / 2;
}
// If ListView has no items that have the same level after this item
if (!HasLevelAfterItem(itemLevel))
{
point2.Y -= SystemInformation.SmallIconSize.Height / 2 + 1;
}
if (TreeListView.Columns[0].Width > (Level + 1) * SystemInformation.SmallIconSize.Width)
{
g.DrawLine(pen, point1, point2);
}
#endregion
#region Horizontal line
point1 = new Point(
plusminusRect.Right - SystemInformation.SmallIconSize.Width / 2 - 1,
GetBounds(TreeListViewItemBoundsPortion.Entire).Top + SystemInformation.SmallIconSize.Height / 2);
point2 = new Point(plusminusRect.Right + 1, point1.Y);
if (TreeListView.Columns[0].Width > (Level + 1) * SystemInformation.SmallIconSize.Width)
{
g.DrawLine(pen, point1, point2);
}
#endregion
#region Lower Level lines
for (int level = Level - 1; level > -1; level--)
{
if (HasLevelAfterItem(level))
{
point1 = new Point(
SystemInformation.SmallIconSize.Width * (2 * level + 1) / 2 + entireRect.X,
entireRect.Top);
point2 = new Point(
point1.X, entireRect.Bottom);
if (TreeListView.Columns[0].Width > (level + 1) * SystemInformation.SmallIconSize.Width)
{
g.DrawLine(pen, point1, point2);
}
}
}
#endregion
pen.Dispose();
hb.Dispose();
}
private void GenerateImage()
{
System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap
(this.width, this.height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
System.Drawing.Rectangle rect = new System.Drawing.Rectangle(0, 0, this.width, this.height);
System.Drawing.Drawing2D.HatchBrush hatchBrush =
new System.Drawing.Drawing2D.HatchBrush(
System.Drawing.Drawing2D.HatchStyle.SmallConfetti,
System.Drawing.Color.LightGray, System.Drawing.Color.White);
g.FillRectangle(hatchBrush, rect);
System.Drawing.SizeF size;
float fontSize = rect.Height + 1;
System.Drawing.Font font;
do
{
fontSize--;
font = new System.Drawing.Font(System.Drawing.FontFamily.GenericSansSerif, fontSize, System.Drawing.FontStyle.Bold);
size = g.MeasureString(this.text, font);
} while (size.Width > rect.Width);
System.Drawing.StringFormat format = new System.Drawing.StringFormat();
format.Alignment = System.Drawing.StringAlignment.Center;
format.LineAlignment = System.Drawing.StringAlignment.Center;
System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();
//path.AddString(this.text, font.FontFamily, (int) font.Style,
// font.Size, rect, format);
path.AddString(this.text, font.FontFamily, (int)font.Style, 75, rect, format);
float v = 4F;
System.Drawing.PointF[] points =
{
new System.Drawing.PointF(this.random.Next(rect.Width) / v, this.random.Next(
rect.Height) / v),
new System.Drawing.PointF(rect.Width - this.random.Next(rect.Width) / v,
this.random.Next(rect.Height) / v),
new System.Drawing.PointF(this.random.Next(rect.Width) / v,
rect.Height - this.random.Next(rect.Height) / v),
new System.Drawing.PointF(rect.Width - this.random.Next(rect.Width) / v,
rect.Height - this.random.Next(rect.Height) / v)
};
System.Drawing.Drawing2D.Matrix matrix = new System.Drawing.Drawing2D.Matrix();
matrix.Translate(0F, 0F);
path.Warp(points, rect, matrix, System.Drawing.Drawing2D.WarpMode.Perspective, 0F);
hatchBrush = new System.Drawing.Drawing2D.HatchBrush(
System.Drawing.Drawing2D.HatchStyle.Percent10
, System.Drawing.Color.Black, System.Drawing.Color.SkyBlue);
g.FillPath(hatchBrush, path);
int m = System.Math.Max(rect.Width, rect.Height);
for (int i = 0; i < (int)(rect.Width * rect.Height / 30F); i++)
{
int x = this.random.Next(rect.Width);
int y = this.random.Next(rect.Height);
int w = this.random.Next(m / 50);
int h = this.random.Next(m / 50);
g.FillEllipse(hatchBrush, x, y, w, h);
}
font.Dispose();
hatchBrush.Dispose();
g.Dispose();
this.image = bitmap;
}
// protected override CreateParams CreateParams
// {
// get
// {
// CreateParams cp = base.CreateParams;
// cp.ExStyle |= 0x20;
// return cp;
// }
// }
//
// protected override void OnMove(EventArgs e)
// {
// RecreateHandle();
// }
//
// protected override void OnPaintBackground(PaintEventArgs e)
// {
// // do nothing
// }
protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
{
base.OnPaint(e);
int ym;
switch (LineVerticalAlign)
{
case LineVerticalAlign.Top:
ym = 0;
break;
case LineVerticalAlign.Middle:
ym = Convert.ToInt32(Math.Ceiling((decimal)Size.Height / 2)) - 1;
break;
case LineVerticalAlign.Bottom:
ym = Size.Height - 2;
break;
default:
ym = 0;
break;
}
SizeF captionSizeF = e.Graphics.MeasureString(Caption, this.Font, this.Width - CaptionMarginSpace * 2, StringFormat.GenericDefault);
int captionLength = Convert.ToInt32(captionSizeF.Width);
int beforeCaption;
int afterCaption;
if (Caption == "")
{
beforeCaption = CaptionMarginSpace;
afterCaption = CaptionMarginSpace;
}
else
{
switch (CaptionOrizontalAlign)
{
case CaptionOrizontalAlign.Left:
beforeCaption = CaptionMarginSpace;
afterCaption = CaptionMarginSpace + CaptionPadding * 2 + captionLength;
break;
case CaptionOrizontalAlign.Center:
beforeCaption = (Width - captionLength) / 2 - CaptionPadding;
afterCaption = (Width - captionLength) / 2 + captionLength + CaptionPadding;
break;
case CaptionOrizontalAlign.Right:
beforeCaption = Width - CaptionMarginSpace * 2 - captionLength;
afterCaption = Width - CaptionMarginSpace;
break;
default:
beforeCaption = CaptionMarginSpace;
afterCaption = CaptionMarginSpace;
break;
}
}
// Lines
if (_LineOrientation == LineOrientation.Horizontal)
{
// -------
// | ...caption...
e.Graphics.DrawLines(new Pen(SystemColors.ControlDark, 1),
new Point[] {
new Point(0, ym + 1),
new Point(0, ym),
new Point(beforeCaption, ym)
}
);
// -------
// ...caption...
e.Graphics.DrawLines(new Pen(SystemColors.ControlDark, 1),
new Point[] {
new Point(afterCaption, ym),
new Point(this.Width, ym)
}
);
// ...caption...
// -------
e.Graphics.DrawLines(new Pen(SystemColors.ControlLightLight, 1),
new Point[] {
new Point(0, ym + 1),
new Point(beforeCaption, ym + 1)
}
);
// ...caption... |
// -------
e.Graphics.DrawLines(new Pen(SystemColors.ControlLightLight, 1),
new Point[] {
new Point(afterCaption, ym + 1),
new Point(this.Width, ym + 1),
new Point(this.Width, ym)
}
);
}
else if (_LineOrientation == LineOrientation.Vertical)
{
System.Drawing.Drawing2D.HatchBrush aHatchBrush = new
System.Drawing.Drawing2D.HatchBrush
(System.Drawing.Drawing2D.HatchStyle.Vertical,
SystemColors.ControlLightLight,
SystemColors.ControlDark);
Pen myPen = new Pen(aHatchBrush, 2);
e.Graphics.DrawLine(myPen, beforeCaption / 2, 0, beforeCaption / 2, ClientRectangle.Height);
myPen.Dispose(); aHatchBrush.Dispose();
}
// Render caption
if (Caption != "")
{
switch (_LineOrientation)
{
case LineOrientation.Horizontal:
e.Graphics.FillRectangle(new SolidBrush(BackColor),
beforeCaption + CaptionPadding, 1,
e.Graphics.MeasureString(Caption, this.Font).Width,
e.Graphics.MeasureString(Caption, this.Font).Height
);
e.Graphics.DrawString(Caption, this.Font, new SolidBrush(this.ForeColor), beforeCaption + CaptionPadding, 1);
break;
case LineOrientation.Vertical:
e.Graphics.FillRectangle(new SolidBrush(BackColor),
0, beforeCaption + CaptionPadding,
e.Graphics.MeasureString(Caption, this.Font).Height,
e.Graphics.MeasureString(Caption, this.Font).Width
);
e.Graphics.DrawString(Caption, this.Font, new SolidBrush(this.ForeColor), 0, beforeCaption + CaptionPadding, new StringFormat(StringFormatFlags.DirectionVertical));
break;
}
}
// e.Graphics.DrawLines(new Pen(Color.Red, 1),
// new Point[] {
// new Point(0, 0),
// new Point(this.Width-1, 0),
// new Point(this.Width-1, this.Height-1),
// new Point(0, this.Height-1),
// new Point(0, 0)
// }
// );
}
///
/// makeCaptcha
///
public System.Drawing.Bitmap makeCaptcha()
{
System.Random randomGenerator = new System.Random();
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(img_width, img_height
, System.Drawing.Imaging.PixelFormat.Format16bppRgb555);
System.Drawing.Rectangle rect = new System.Drawing.Rectangle(0, 0, img_width, img_height);
System.Drawing.StringFormat sFormat = new System.Drawing.StringFormat();
sFormat.Alignment = System.Drawing.StringAlignment.Center;
sFormat.LineAlignment = System.Drawing.StringAlignment.Center;
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bmp);
// Set up the text font.
System.Drawing.SizeF size;
float fontSize = img_fontsize + 1;
System.Drawing.Font font;
// try to use requested font, but
// If the named font is not installed, default to a system font.
try
{
font = new System.Drawing.Font(img_fontname, img_fontsize);
font.Dispose();
}
catch (System.Exception ex)
{
img_fontname = System.Drawing.FontFamily.GenericSerif.Name;
}
// build a new string with space through the chars
// i.e. keyword 'hello' become 'h e l l o '
string tempKey = "";
for (int ii = 0; ii < sKeyword.Length; ii++)
{
tempKey = string.Concat(tempKey, sKeyword[ii].ToString());
tempKey = string.Concat(tempKey, " ");
}
// Adjust the font size until the text fits within the image.
do
{
fontSize--;
font = new System.Drawing.Font(img_fontname, fontSize, img_fontstyle);
size = g.MeasureString(tempKey, font);
} while (size.Width > (0.8 * bmp.Width));
img_font = font;
g.Clear(System.Drawing.Color.Silver); // blank the image
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias; // antialias objects
// fill with a liner gradient
// random colors
g.FillRectangle(
new System.Drawing.Drawing2D.LinearGradientBrush(
new System.Drawing.Point(0, 0),
new System.Drawing.Point(bmp.Width, bmp.Height),
System.Drawing.Color.FromArgb(
255, //randomGenerator.Next(255),
randomGenerator.Next(255),
randomGenerator.Next(255),
randomGenerator.Next(255)
),
System.Drawing.Color.FromArgb(
randomGenerator.Next(100),
randomGenerator.Next(255),
randomGenerator.Next(255),
randomGenerator.Next(255)
)),
rect);
// apply swirl filter
if (fDegree == 0)
{
BitmapFilter.Swirl(bmp, randomGenerator.NextDouble(), true);
}
else
{
BitmapFilter.Swirl(bmp, fDegree, true);
}
// draw a first line crossing the image
// int y1, y2;
// y1 = randomGenerator.Next(bmp.Height/3) + (bmp.Height/3);
// y2 = bmp.Height - randomGenerator.Next(bmp.Height/3);
//
// g.DrawLine(new Pen( img_fontcolor, 2),
// new Point(0,y1), new Point(bmp.Width,y2));
// Add some random noise.
System.Drawing.Drawing2D.HatchBrush hatchBrush = new System.Drawing.Drawing2D.HatchBrush(
System.Drawing.Drawing2D.HatchStyle.LargeConfetti,
System.Drawing.Color.LightGray,
System.Drawing.Color.DarkGray);
int m = System.Math.Max(rect.Width, rect.Height);
for (int i = 0; i < (int)(rect.Width * rect.Height / 30F); i++)
{
int x = randomGenerator.Next(rect.Width);
int y = randomGenerator.Next(rect.Height);
int w = randomGenerator.Next(m / 50);
int h = randomGenerator.Next(m / 50);
g.FillEllipse(hatchBrush, x, y, w, h);
}
// write keyword
// keyword positioning
// to space equally
int posx;
int posy;
int deltax;
deltax = System.Convert.ToInt32(size.Width / tempKey.Length);
posx = System.Convert.ToInt32((img_width - size.Width) / 2);
// write each keyword char
for (int l = 0; l < tempKey.Length; l++)
{
posy = ((int)(2.5 * (bmp.Height / 5))) + (((l % 2) == 0)?-2:2) * ((int)(size.Height / 3));
posy = (int)((bmp.Height / 2) + (size.Height / 2));
posy += (int)((((l % 2) == 0)?-2:2) * ((size.Height / 3)));
posx += deltax;
g.DrawString(tempKey[l].ToString(),
img_font,
img_fontcolor,
posx,
posy,
sFormat);
}
// draw a curve
System.Drawing.Point[] ps = new System.Drawing.Point[nPoints];
for (int ii = 0; ii < nPoints; ii++)
{
int x, y;
x = randomGenerator.Next(bmp.Width);
y = randomGenerator.Next(bmp.Height);
ps[ii] = new System.Drawing.Point(x, y);
}
g.DrawCurve(new System.Drawing.Pen(img_fontcolor, 2), ps
, System.Convert.ToSingle(randomGenerator.NextDouble()));
// apply water filter
BitmapFilter.Water(bmp, nWave, false);
// Clean up.
font.Dispose();
hatchBrush.Dispose();
g.Dispose();
return(bmp);
}
/// <summary>
/// Обрабатывает запрос на тестовую картинку с заданными размерами (Width and Height)
/// </summary>
public System.Web.Mvc.ActionResult GetImage(System.String w, System.String h)
{
// parse args
var width = System.Int32.Parse(w);
if (width <= 0)
{
throw new System.ArgumentOutOfRangeException("width", width, "Argument out of range, must be greater than zero.");
}
var height = System.Int32.Parse(h);
if (height <= 0)
{
throw new System.ArgumentOutOfRangeException("height", height, "Argument out of range, must be greater than zero.");
}
var text = "";
var random = new System.Random();
for (var i = 0; i < 6; i++)
{
text += random.Next(10);
}
// keep captcha key in session
this.Session["CAPTCHA"] = text;
// Create a CAPTCHA image and send it as response
System.Drawing.Bitmap image = null;
try
{
// Create a new 32-bit bitmap image.
image = new System.Drawing.Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
// Create a graphics object for drawing.
var g = System.Drawing.Graphics.FromImage(image);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
var rect = new System.Drawing.Rectangle(0, 0, width, height);
// Fill in the background.
var hatchBrush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.SmallConfetti, System.Drawing.Color.LightGray, System.Drawing.Color.White);
g.FillRectangle(hatchBrush, rect);
// Set up the text font.
System.Drawing.SizeF size;
var fontSize = rect.Height + 1;
System.Drawing.Font font;
// Adjust the font size until the text fits within the image.
do
{
fontSize--;
font = new System.Drawing.Font(System.Drawing.FontFamily.GenericSerif.Name, fontSize, System.Drawing.FontStyle.Bold);
size = g.MeasureString(text, font);
} while (size.Width > rect.Width);
// Set up the text format.
var format = new System.Drawing.StringFormat();
format.Alignment = System.Drawing.StringAlignment.Center;
format.LineAlignment = System.Drawing.StringAlignment.Center;
// Create a path using the text and warp it randomly.
var path = new System.Drawing.Drawing2D.GraphicsPath();
path.AddString(text, font.FontFamily, (System.Int32)font.Style, font.Size, rect, format);
var v = 4F;
var points = new System.Drawing.PointF[]
{
new System.Drawing.PointF(random.Next(rect.Width) / v, random.Next(rect.Height) / v),
new System.Drawing.PointF(rect.Width - random.Next(rect.Width) / v, random.Next(rect.Height) / v),
new System.Drawing.PointF(random.Next(rect.Width) / v, rect.Height - random.Next(rect.Height) / v),
new System.Drawing.PointF(rect.Width - random.Next(rect.Width) / v, rect.Height - random.Next(rect.Height) / v)
};
var matrix = new System.Drawing.Drawing2D.Matrix();
matrix.Translate(0F, 0F);
path.Warp(points, rect, matrix, System.Drawing.Drawing2D.WarpMode.Perspective, 0F);
// Draw the text.
hatchBrush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.LargeConfetti, System.Drawing.Color.LightGray, System.Drawing.Color.DarkGray);
g.FillPath(hatchBrush, path);
// Add some random noise.
int m = System.Math.Max(rect.Width, rect.Height);
for (var i = 0; i < (System.Int32)(rect.Width * rect.Height / 30F); i++)
{
g.FillEllipse(hatchBrush, random.Next(rect.Width), random.Next(rect.Height), random.Next(m / 50), random.Next(m / 50));
}
// Clean up.
font.Dispose();
hatchBrush.Dispose();
g.Dispose();
// send image response
var converter = new System.Drawing.ImageConverter();
return(this.File((System.Byte[])converter.ConvertTo(image, typeof(System.Byte[])), "image/jpeg"));
}
finally
{
if (image != null)
{
image.Dispose();
}
}
}
// protected override CreateParams CreateParams
// {
// get
// {
// CreateParams cp = base.CreateParams;
// cp.ExStyle |= 0x20;
// return cp;
// }
// }
//
// protected override void OnMove(EventArgs e)
// {
// RecreateHandle();
// }
//
// protected override void OnPaintBackground(PaintEventArgs e)
// {
// // do nothing
// }
protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
{
base.OnPaint(e);
int ym;
switch (LineVerticalAlign)
{
case LineVerticalAlign.Top:
ym = 0;
break;
case LineVerticalAlign.Middle:
ym = Convert.ToInt32(Math.Ceiling((decimal)Size.Height / 2)) - 1;
break;
case LineVerticalAlign.Bottom:
ym = Size.Height - 2;
break;
default:
ym = 0;
break;
}
SizeF captionSizeF = e.Graphics.MeasureString(Caption, this.Font, this.Width - CaptionMarginSpace * 2, StringFormat.GenericDefault);
int captionLength = Convert.ToInt32(captionSizeF.Width);
int beforeCaption;
int afterCaption;
if (Caption == "")
{
beforeCaption = CaptionMarginSpace;
afterCaption = CaptionMarginSpace;
}
else
{
switch (CaptionOrizontalAlign)
{
case CaptionOrizontalAlign.Left:
beforeCaption = CaptionMarginSpace;
afterCaption = CaptionMarginSpace + CaptionPadding * 2 + captionLength;
break;
case CaptionOrizontalAlign.Center:
beforeCaption = (Width - captionLength) / 2 - CaptionPadding;
afterCaption = (Width - captionLength) / 2 + captionLength + CaptionPadding;
break;
case CaptionOrizontalAlign.Right:
beforeCaption = Width - CaptionMarginSpace * 2 - captionLength;
afterCaption = Width - CaptionMarginSpace;
break;
default:
beforeCaption = CaptionMarginSpace;
afterCaption = CaptionMarginSpace;
break;
}
}
// Lines
if (_LineOrientation == LineOrientation.Horizontal)
{
// -------
// | ...caption...
e.Graphics.DrawLines(new Pen(SystemColors.ControlDark, 1),
new Point[] {
new Point(0, ym + 1),
new Point(0, ym),
new Point(beforeCaption, ym)
}
);
// -------
// ...caption...
e.Graphics.DrawLines(new Pen(SystemColors.ControlDark, 1),
new Point[] {
new Point(afterCaption, ym),
new Point(this.Width, ym)
}
);
// ...caption...
// -------
e.Graphics.DrawLines(new Pen(SystemColors.ControlLightLight, 1),
new Point[] {
new Point(0, ym + 1),
new Point(beforeCaption, ym + 1)
}
);
// ...caption... |
// -------
e.Graphics.DrawLines(new Pen(SystemColors.ControlLightLight, 1),
new Point[] {
new Point(afterCaption, ym + 1),
new Point(this.Width, ym + 1),
new Point(this.Width, ym)
}
);
}
else if (_LineOrientation == LineOrientation.Vertical)
{
System.Drawing.Drawing2D.HatchBrush aHatchBrush = new
System.Drawing.Drawing2D.HatchBrush
(System.Drawing.Drawing2D.HatchStyle.Vertical,
SystemColors.ControlLightLight,
SystemColors.ControlDark);
Pen myPen = new Pen(aHatchBrush, 2);
e.Graphics.DrawLine(myPen, beforeCaption / 2, 0, beforeCaption / 2, ClientRectangle.Height);
myPen.Dispose(); aHatchBrush.Dispose();
}
// Render caption
if (Caption != "")
{
switch (_LineOrientation)
{
case LineOrientation.Horizontal:
e.Graphics.FillRectangle(new SolidBrush(BackColor),
beforeCaption + CaptionPadding, 1,
e.Graphics.MeasureString(Caption, this.Font).Width,
e.Graphics.MeasureString(Caption, this.Font).Height
);
e.Graphics.DrawString(Caption, this.Font, new SolidBrush(this.ForeColor), beforeCaption + CaptionPadding, 1);
break;
case LineOrientation.Vertical:
e.Graphics.FillRectangle(new SolidBrush(BackColor),
0, beforeCaption + CaptionPadding,
e.Graphics.MeasureString(Caption, this.Font).Height,
e.Graphics.MeasureString(Caption, this.Font).Width
);
e.Graphics.DrawString(Caption, this.Font, new SolidBrush(this.ForeColor), 0, beforeCaption + CaptionPadding, new StringFormat(StringFormatFlags.DirectionVertical));
break;
}
}
// e.Graphics.DrawLines(new Pen(Color.Red, 1),
// new Point[] {
// new Point(0, 0),
// new Point(this.Width-1, 0),
// new Point(this.Width-1, this.Height-1),
// new Point(0, this.Height-1),
// new Point(0, 0)
// }
// );
}
internal void DrawPlusMinusLines(Graphics g)
{
if(!IsInATreeListView) return;
if(TreeListView._updating) return;
Debug.Assert(!TreeListView.InvokeRequired);
if(!TreeListView.ShowPlusMinus || TreeListView.Columns.Count == 0) return;
int itemLevel = Level;
Rectangle plusminusRect = GetBounds(TreeListViewItemBoundsPortion.PlusMinus);
Rectangle entireRect = GetBounds(TreeListViewItemBoundsPortion.Entire);
System.Drawing.Drawing2D.HatchBrush hb = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.Percent50, TreeListView.PlusMinusLineColor, BackColor);
Pen pen = new Pen(hb);
Point point1, point2;
#region Vertical line
point1 = new Point(
plusminusRect.Right - SystemInformation.SmallIconSize.Width / 2 - 1,
entireRect.Top);
point2 = new Point( point1.X, entireRect.Bottom);
// If ListView has no items that have the same level before this item
if(!HasLevelBeforeItem(itemLevel)) point1.Y += SystemInformation.SmallIconSize.Height / 2;
// If ListView has no items that have the same level after this item
if(!HasLevelAfterItem(itemLevel)) point2.Y -= SystemInformation.SmallIconSize.Height / 2 + 1;
if(TreeListView.Columns[0].Width > (Level + 1) * SystemInformation.SmallIconSize.Width)
g.DrawLine(pen, point1, point2);
#endregion
#region Horizontal line
point1 = new Point(
plusminusRect.Right - SystemInformation.SmallIconSize.Width / 2 - 1,
GetBounds(TreeListViewItemBoundsPortion.Entire).Top + SystemInformation.SmallIconSize.Height /2);
point2 = new Point(plusminusRect.Right + 1, point1.Y);
if(TreeListView.Columns[0].Width > (Level + 1) * SystemInformation.SmallIconSize.Width)
g.DrawLine(pen, point1, point2);
#endregion
#region Lower Level lines
for(int level = Level - 1; level > -1; level--)
if(HasLevelAfterItem(level))
{
point1 = new Point(
SystemInformation.SmallIconSize.Width * (2*level + 1) / 2 + entireRect.X,
entireRect.Top);
point2 = new Point(
point1.X, entireRect.Bottom);
if(TreeListView.Columns[0].Width > (level + 1) * SystemInformation.SmallIconSize.Width)
g.DrawLine(pen, point1, point2);
}
#endregion
pen.Dispose();
hb.Dispose();
}
protected void GenerateImage()
{
Random random = new Random();
// Create a new 32-bit bitmap image.
Bitmap bitmap = new Bitmap(230,37,PixelFormat.Format32bppArgb);
// Create a graphics object for drawing.
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
Rectangle rect = new Rectangle(0, 0, 230, 37);
// Fill in the background.
System.Drawing.Drawing2D.HatchBrush hatchBrush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.Percent50, Color.LightGray, Color.White);
//SolidBrush hatchBrush = new SolidBrush(Color.Red);
String strText =(String)Session["ImageSID"];
g.FillRectangle(hatchBrush, rect);
// Set up the text font.
SizeF size;
float fontSize = rect.Height -12;
// Adjust the font size until the text fits within the image.
Font font = new Font("Century Schoolbook",fontSize, FontStyle.Bold);
size = g.MeasureString(strText, font);
// Set up the text format.
StringFormat format = new StringFormat();
format.Alignment = StringAlignment.Center;
format.LineAlignment = StringAlignment.Center;
// Create a path using the text and warp it randomly.
System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();
path.AddString(
strText,
font.FontFamily,
(int)font.Style,
font.Size, rect,
format);
float v = 12F;
PointF[] points =
{
new PointF(
random.Next(rect.Width) / v,
random.Next(rect.Height) / v),
new PointF(
rect.Width - random.Next(rect.Width) / v,
random.Next(rect.Height) / v),
new PointF(
random.Next(rect.Width) / v,
rect.Height - random.Next(rect.Height) / v),
new PointF(
rect.Width - random.Next(rect.Width) / v,
rect.Height - random.Next(rect.Height) / v)
};
//points={0,0,0,0};
System.Drawing.Drawing2D.Matrix matrix = new System.Drawing.Drawing2D.Matrix();
matrix.Translate(0F, 0F);
path.Warp(points, rect, matrix, System.Drawing.Drawing2D.WarpMode.Perspective, 0F);
// Draw the text.
hatchBrush = new System.Drawing.Drawing2D.HatchBrush(
System.Drawing.Drawing2D.HatchStyle.Percent50,
Color.LightSlateGray,
Color.DarkGray);
g.FillPath(hatchBrush, path);
// Add some random noise.
int m = Math.Max(rect.Width, rect.Height);
for (int i = 0; i < (int)(rect.Width * rect.Height / 30F); i++)
{
int x = random.Next(rect.Width);
int y = random.Next(rect.Height);
int w = random.Next(m / 50);
int h = random.Next(m / 50);
g.FillEllipse(hatchBrush, x, y, w, h);
}
// Clean up.
font.Dispose();
hatchBrush.Dispose();
g.Dispose();
// Set the image.
this.Response.Clear();
this.Response.ContentType = "image/jpeg";
// Write the image to the response stream in JPEG format.
bitmap.Save(this.Response.OutputStream, ImageFormat.Jpeg);
// Dispose of the CAPTCHA image object.
bitmap.Dispose();
}
// ====================================================================
// Creates the bitmap image.
// ====================================================================
private void GenerateImage()
{
// Create a new 32-bit bitmap image.
System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(this.width, this.height
, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
// Create a graphics object for drawing.
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
System.Drawing.Rectangle rect = new System.Drawing.Rectangle(0, 0, this.width, this.height);
// Fill in the background.
System.Drawing.Drawing2D.HatchBrush hatchBrush =
new System.Drawing.Drawing2D.HatchBrush(
System.Drawing.Drawing2D.HatchStyle.SmallConfetti
, System.Drawing.Color.LightGray
, System.Drawing.Color.White);
g.FillRectangle(hatchBrush, rect);
// Set up the text font.
System.Drawing.SizeF size;
float fontSize = rect.Height + 1;
System.Drawing.Font font;
// Adjust the font size until the text fits within the image.
do
{
fontSize--;
font = new System.Drawing.Font(this.familyName, fontSize, System.Drawing.FontStyle.Bold);
size = g.MeasureString(this.text, font);
} while (size.Width > rect.Width);
// Set up the text format.
System.Drawing.StringFormat format = new System.Drawing.StringFormat();
format.Alignment = System.Drawing.StringAlignment.Center;
format.LineAlignment = System.Drawing.StringAlignment.Center;
// Create a path using the text and warp it randomly.
System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();
path.AddString(this.text, font.FontFamily, (int)font.Style, font.Size, rect, format);
float v = 4F;
System.Drawing.PointF[] points =
{
new System.Drawing.PointF(this.random.Next(rect.Width) / v, this.random.Next(rect.Height) / v),
new System.Drawing.PointF(rect.Width - this.random.Next(rect.Width) / v, this.random.Next(rect.Height) / v),
new System.Drawing.PointF(this.random.Next(rect.Width) / v, rect.Height - this.random.Next(rect.Height) / v),
new System.Drawing.PointF(rect.Width - this.random.Next(rect.Width) / v, rect.Height - this.random.Next(rect.Height) / v)
};
System.Drawing.Drawing2D.Matrix matrix = new System.Drawing.Drawing2D.Matrix();
matrix.Translate(0F, 0F);
path.Warp(points, rect, matrix, System.Drawing.Drawing2D.WarpMode.Perspective, 0F);
// Draw the text.
hatchBrush = new System.Drawing.Drawing2D.HatchBrush(
System.Drawing.Drawing2D.HatchStyle.LargeConfetti
, System.Drawing.Color.LightGray
, System.Drawing.Color.DarkGray);
g.FillPath(hatchBrush, path);
// Add some random noise.
int m = System.Math.Max(rect.Width, rect.Height);
for (int i = 0; i < (int)(rect.Width * rect.Height / 30F); i++)
{
int x = this.random.Next(rect.Width);
int y = this.random.Next(rect.Height);
int w = this.random.Next(m / 50);
int h = this.random.Next(m / 50);
g.FillEllipse(hatchBrush, x, y, w, h);
}
// Clean up.
font.Dispose();
hatchBrush.Dispose();
g.Dispose();
// Set the image.
this.image = bitmap;
}
private byte[] GenerateCaptchaImage(string text, int width, int height)
{
Random random = new Random(int.Parse(Guid.NewGuid().ToString().Substring(0, 8), System.Globalization.NumberStyles.HexNumber));
System.Drawing.Font font;
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(bmp);
graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
System.Drawing.Rectangle rect = new System.Drawing.Rectangle(0, 0, width, height);
System.Drawing.Drawing2D.HatchBrush brush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.SmallConfetti, System.Drawing.Color.LightGray, System.Drawing.Color.White);
graphics.FillRectangle(brush, rect);
float emSize = rect.Height + 1;
do {
emSize--;
font = new System.Drawing.Font(System.Drawing.FontFamily.GenericSansSerif, emSize, System.Drawing.FontStyle.Bold);
} while (graphics.MeasureString(text, font).Width > rect.Width);
System.Drawing.StringFormat format = new System.Drawing.StringFormat {
Alignment = System.Drawing.StringAlignment.Center,
LineAlignment = System.Drawing.StringAlignment.Center
};
System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();
path.AddString(text, font.FontFamily, (int)font.Style, 75f, rect, format);
float num2 = 4f;
System.Drawing.PointF[] destPoints = new System.Drawing.PointF[] { new System.Drawing.PointF(((float)random.Next(rect.Width)) / num2, ((float)random.Next(rect.Height)) / num2), new System.Drawing.PointF(rect.Width - (((float)random.Next(rect.Width)) / num2), ((float)random.Next(rect.Height)) / num2), new System.Drawing.PointF(((float)random.Next(rect.Width)) / num2, rect.Height - (((float)random.Next(rect.Height)) / num2)), new System.Drawing.PointF(rect.Width - (((float)random.Next(rect.Width)) / num2), rect.Height - (((float)random.Next(rect.Height)) / num2)) };
System.Drawing.Drawing2D.Matrix matrix = new System.Drawing.Drawing2D.Matrix();
matrix.Translate(0f, 0f);
path.Warp(destPoints, rect, matrix, System.Drawing.Drawing2D.WarpMode.Perspective, 0f);
brush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.Percent10, System.Drawing.Color.Black, System.Drawing.Color.SkyBlue);
graphics.FillPath(brush, path);
int num3 = Math.Max(rect.Width, rect.Height);
for (int i = 0; i < ((int)(((float)(rect.Width * rect.Height)) / 30f)); i++) {
int x = random.Next(rect.Width);
int y = random.Next(rect.Height);
int w = random.Next(num3 / 50);
int h = random.Next(num3 / 50);
graphics.FillEllipse(brush, x, y, w, h);
}
font.Dispose();
brush.Dispose();
graphics.Dispose();
System.IO.MemoryStream imageStream = new System.IO.MemoryStream();
bmp.Save(imageStream, System.Drawing.Imaging.ImageFormat.Jpeg);
byte[] imageContent = new Byte[imageStream.Length];
imageStream.Position = 0;
imageStream.Read(imageContent, 0, (int)imageStream.Length);
return imageContent;
}
