public override void Draw(System.Drawing.RectangleF dirtyRect)
{
var g = new Graphics();
// NSView does not have a background color so we just use Clear to white here
g.Clear(Color.White);
//RectangleF ClientRectangle = this.Bounds;
RectangleF ClientRectangle = dirtyRect;
// Calculate the location and size of the drawing area
// within which we want to draw the graphics:
Rectangle rect = new Rectangle((int)ClientRectangle.X, (int)ClientRectangle.Y,
(int)ClientRectangle.Width, (int)ClientRectangle.Height);
drawingRectangle = new Rectangle(rect.Location, rect.Size);
drawingRectangle.Inflate(-offset, -offset);
//Draw ClientRectangle and drawingRectangle using Pen:
g.DrawRectangle(Pens.Red, rect);
g.DrawRectangle(Pens.Black, drawingRectangle);
// Draw a line from point (3,2) to Point (6, 7)
// using the Pen with a width of 3 pixels:
Pen aPen = new Pen(Color.Green, 3);
g.DrawLine(aPen, Point2D(new PointF(3, 2)),
Point2D(new PointF(6, 7)));
g.PageUnit = GraphicsUnit.Inch;
ClientRectangle = new RectangleF(0.5f,0.5f, 1.5f, 1.5f);
aPen.Width = 1 / g.DpiX;
g.DrawRectangle(aPen, ClientRectangle);
aPen.Dispose();
g.Dispose();
}
private void EnsureTemporaryBitmap( int width, int height )
{
if( bmp != null )
{
if( bmp.Width >= width && bmp.Height >= height )
{
g.Clear( Color.Black );
return;
}
width = Math.Max( width, bmp.Width );
height = Math.Max( height, bmp.Height );
}
Helpers.DisposeAndClear( ref g );
Helpers.DisposeAndClear( ref bmp );
bmp = new Bitmap( width, height, PixelFormat.Format32bppRgb );
g = Graphics.FromImage( bmp );
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
g.TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
g.Clear( Color.Black );
}
public RectangleTransparent()
{
clearPen = new Pen(Color.FromArgb(1, 0, 0, 0));
borderDotPen = new Pen(Color.Black, 1);
borderDotPen2 = new Pen(Color.White, 1);
borderDotPen2.DashPattern = new float[] { 5, 5 };
penTimer = Stopwatch.StartNew();
ScreenRectangle = CaptureHelpers.GetScreenBounds();
surface = new Bitmap(ScreenRectangle.Width, ScreenRectangle.Height);
gSurface = Graphics.FromImage(surface);
gSurface.InterpolationMode = InterpolationMode.NearestNeighbor;
gSurface.SmoothingMode = SmoothingMode.HighSpeed;
gSurface.CompositingMode = CompositingMode.SourceCopy;
gSurface.CompositingQuality = CompositingQuality.HighSpeed;
gSurface.Clear(Color.FromArgb(1, 0, 0, 0));
StartPosition = FormStartPosition.Manual;
Bounds = ScreenRectangle;
Text = "ShareX - " + Resources.RectangleTransparent_RectangleTransparent_Rectangle_capture_transparent;
Shown += RectangleLight_Shown;
KeyUp += RectangleLight_KeyUp;
MouseDown += RectangleLight_MouseDown;
MouseUp += RectangleLight_MouseUp;
using (MemoryStream cursorStream = new MemoryStream(Resources.Crosshair))
{
Cursor = new Cursor(cursorStream);
}
timer = new Timer { Interval = 10 };
timer.Tick += timer_Tick;
timer.Start();
}
public void DrawPieChart()
{
g = Graphics.FromImage(bitmapd);
g.Clear(System.Drawing.Color.AliceBlue);
int a = db.getCountFromDB("select count(*) from music");
DataTable dt = db.getQueryFromDB("select distinct Genre from music");
int index = 0;
int[] myPiePercent = new int[dt.Rows.Count];
string [] values=new string[dt.Rows.Count];
foreach (DataRow r in dt.Rows)
{
string s = r[0].ToString();
int b = db.getCountFromDB(string.Format("select count(*) from music where Genre='{0}'", s));
myPiePercent[index] = (int)Math.Ceiling(((double)b * 100 / a));
values[index] = s;
index++;
}
System.Drawing.Color[] myPieColors = { c1, c2, c3, c4 };
g.Clear(System.Drawing.Color.AliceBlue);
System.Drawing.Size myPieSize ;
System.Drawing.Point myPieLocation ;
if (x < y)
{
myPieSize= new System.Drawing.Size(x - 50, x - 50);
myPieLocation = new System.Drawing.Point(x / 2, x / 2);
}
else
{
myPieSize = new System.Drawing.Size(y - 50, y - 50);
myPieLocation = new System.Drawing.Point(y / 2, y / 2);
}
int PiePercentTotal = 0;
for (int PiePercents = 0; PiePercents < myPiePercent.Length; PiePercents++)
{
using (SolidBrush brush = new SolidBrush(myPieColors[PiePercents]))
{
g.FillPie(brush, new System.Drawing.Rectangle(new System.Drawing.Point(10, 10), myPieSize), Convert.ToSingle(PiePercentTotal * 360 / 100), Convert.ToSingle(myPiePercent[PiePercents] * 360 / 100));
}
PiePercentTotal += myPiePercent[PiePercents];
}
double xx = 0, yy = 0;
for (int k = 0; k < index; k ++)
{
yy = Math.Sin(100*k*Math.PI/180) * 90;
xx = Math.Cos(k*100 * Math.PI / 180) * 90;
//g.DrawRectangle(new System.Drawing.Pen(System.Drawing.Color.Black), myPieLocation.X+(int)xx,myPieLocation.Y+ (int)yy, 5, 5);
g.DrawString(values[k], new System.Drawing.Font("Sans", 10), System.Drawing.Brushes.Black, myPieLocation.X-30+(float)xx, myPieLocation.Y+(float)yy);
}
}
private void CreateImage(string checkCode)
{
int iwidth = (int)(checkCode.Length * 25);
System.Drawing.Bitmap image = new System.Drawing.Bitmap(iwidth, 30);
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(image);
System.Drawing.Font f = new System.Drawing.Font("Arial", 20, System.Drawing.FontStyle.Bold);
System.Drawing.Brush b = new System.Drawing.SolidBrush(System.Drawing.Color.White);
//g.FillRectangle(new System.Drawing.SolidBrush(Color.Blue),0,0,image.Width, image.Height);
g.Clear(System.Drawing.Color.Blue);
g.DrawString(checkCode, f, b, 3, 3);
System.Drawing.Pen blackPen = new System.Drawing.Pen(System.Drawing.Color.Black, 0);
Random rand = new Random();
for (int i = 0; i < 5; i++)
{
int y = rand.Next(image.Height);
g.DrawLine(blackPen, 0, y, image.Width, y);
}
System.IO.MemoryStream ms = new System.IO.MemoryStream();
image.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
Response.ClearContent();
Response.ContentType = "image/Jpeg";
Response.BinaryWrite(ms.ToArray());
g.Dispose();
image.Dispose();
}
public void DrawPDF417(ref Graphics g)
{
g.Clear(this.backcolor);
SolidBrush brush = new SolidBrush(this.forecolor);
int x = this.leftmargin;
int y = this.topmargin;
SizeF ef = g.MeasureString(this.bottomcomment, this.txtFont, 0x7fffffff, StringFormat.GenericTypographic);
for (int i = 0; i < this.encodebinarystr.Length; i++)
{
char ch = this.encodebinarystr[i];
switch (ch)
{
case '0':
x += this.modulewidth;
break;
case '1':
g.FillRectangle(brush, x, y, this.modulewidth, this.moduleheight);
x += this.modulewidth;
break;
default:
if (ch == 'Z')
{
y += this.moduleheight;
x = this.leftmargin;
}
break;
}
}
g.DrawString(this.topcomment, this.txtFont, brush, (float) this.topcommentleftmargin, (float) this.topcommenttopmargin);
//g.DrawString(" ", this.txtFont, brush, (float) 0f, (float) (this.symbolheight - ef.Height));
brush.Dispose();
}
Bitmap drawBattleDice(Graphics gDice, Bitmap diceBitmap, Pen myPen, Brush myBrush, int level, int randomNumber)
{
gDice.Clear(Color.Transparent);
PointF[] Verticies;
Verticies = new PointF[3];
Verticies[0] = new PointF(0, pbDice.Height - 1);
Verticies[1] = new PointF(pbDice.Width - 1, pbDice.Height - 1);
Verticies[2] = new PointF(pbDice.Width / 2.0f, (float)(pbDice.Height - 1 - pbDice.Height / 2 * Math.Sqrt(3)));
if (level == 1)
gDice.FillPolygon(new SolidBrush(Color.Green), Verticies);
else if(level==2)
gDice.FillPolygon(new SolidBrush(Color.Red), Verticies);
else if (level == 3)
gDice.FillPolygon(new SolidBrush(Color.Blue), Verticies);
else if (level == 4)
gDice.FillPolygon(new SolidBrush(Color.Purple), Verticies);
myPen.Color = Color.Black;
gDice.DrawPolygon(myPen, Verticies);
Font font = new Font("Times New Roman", 16, FontStyle.Bold);
StringFormat format = new StringFormat();
Brush whiteBrush = new SolidBrush(Color.White);
format.Alignment = StringAlignment.Center;
RectangleF rect = new RectangleF(pbDice.Width / 2 - 20 , pbDice.Height / 2 - 4 , 40 , 25);
if (randomNumber == 0)
{
rect.Y = pbDice.Height / 2 + 6;
gDice.DrawString("Roll", new Font("Times New Roman", 14, FontStyle.Italic), whiteBrush, rect, format);
}
else
{
gDice.DrawString(randomNumber.ToString(), font, whiteBrush, rect, format);
}
return diceBitmap;
}
///<summary>
/// 对给定的一个图片（Image对象）生成一个指定大小的缩略图。
///</summary>
///<param name="originalImage">原始图片</param>
///<param name="thumMaxWidth">缩略图的宽度</param>
///<param name="thumMaxHeight">缩略图的高度</param>
///<returns>返回缩略图的Image对象</returns>
public static System.Drawing.Image GetThumbNailImage(System.Drawing.Image originalImage, int thumMaxWidth, int thumMaxHeight)
{
System.Drawing.Size thumRealSize = System.Drawing.Size.Empty;
System.Drawing.Image newImage = originalImage;
System.Drawing.Graphics graphics = null;
try
{
thumRealSize = GetNewSize(thumMaxWidth, thumMaxHeight, originalImage.Width, originalImage.Height);
newImage = new System.Drawing.Bitmap(thumRealSize.Width, thumRealSize.Height);
graphics = System.Drawing.Graphics.FromImage(newImage);
graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
graphics.Clear(System.Drawing.Color.Transparent);
graphics.DrawImage(originalImage, new System.Drawing.Rectangle(0, 0, thumRealSize.Width, thumRealSize.Height), new System.Drawing.Rectangle(0, 0, originalImage.Width, originalImage.Height), System.Drawing.GraphicsUnit.Pixel);
}
catch { }
finally
{
if (graphics != null)
{
graphics.Dispose();
graphics = null;
}
}
return(newImage);
}
void Former.new84file()
{
pixels = new PixelButton[256, 128];
map = new Bitmap(256, 128);
gra = Graphics.FromImage(map);
gra.Clear(Color.Transparent);
}
void Former.new42file()
{
pixels = new PixelButton[128, 64];
map = new Bitmap(128, 64);
gra = Graphics.FromImage(map);
gra.Clear(Color.Transparent);
}
int x1 = 0, y1 = 0; // для рисования линии
#endregion Fields
#region Constructors
public Form1()
{
InitializeComponent();
this.Height = System.Windows.Forms.SystemInformation.PrimaryMonitorSize.Height;
this.Width = System.Windows.Forms.SystemInformation.PrimaryMonitorSize.Width;
imageBox.Width = System.Windows.Forms.SystemInformation.PrimaryMonitorSize.Width - 200;
imageBox.Height = System.Windows.Forms.SystemInformation.PrimaryMonitorSize.Height - 200;
panel3.Width = System.Windows.Forms.SystemInformation.PrimaryMonitorSize.Width - 195;
imagePanel.Width = System.Windows.Forms.SystemInformation.PrimaryMonitorSize.Height - 180;
imagePanel.Height = imageBox.Width = System.Windows.Forms.SystemInformation.PrimaryMonitorSize.Width - 180;
imagePanel.AutoSize = true;
imagePanel.AutoScroll = true;
DoubleBuffered = true;
g = imageBox.CreateGraphics();
g.Clear(foneColor);
//// Тест
//bmp = new Bitmap(imageBox.Width, imageBox.Height);
//g = Graphics.FromImage(bmp);
//g.Clear(foneColor);
//g.FillRectangle(new SolidBrush(Color.Gainsboro), 0, 0, bmp.Width, bmp.Height);
//g.DrawLine(blackPen, 0, 0, bmp.Width, bmp.Height);
//g.DrawLine(blackPen, 0, bmp.Height, bmp.Width, 0);
//g.Dispose();
//this.imageBox.Image = bmp;
//this.imageBox.Size = bmp.Size;
//this.vScrollBar1.Maximum = bmp.Height + this.ClientSize.Height;
//this.hScrollBar1.Maximum = bmp.Width + this.ClientSize.Width;
//this.hScrollBar1.Value = 0;
//this.Text = "x = 0, y = 0";
}
public CDrawWinForm()
{
this.Icon = new System.Drawing.Icon(Path.Combine(System.Environment.CurrentDirectory, CSettings.sIcon));
_Textures = new List<STexture>();
_Bitmaps = new List<Bitmap>();
_Keys = new CKeys();
_Mouse = new CMouse();
this.ClientSize = new Size(1280, 720);
this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.Opaque, true);
// Create the backbuffer
_backbuffer = new Bitmap(CSettings.iRenderW, CSettings.iRenderH);
_g = Graphics.FromImage(_backbuffer);
_g.Clear(Color.DarkBlue);
this.Paint += new PaintEventHandler(this.OnPaintEvent);
this.Closing += new CancelEventHandler(this.OnClosingEvent);
this.KeyDown += new KeyEventHandler(this.OnKeyDownEvent);
this.KeyPress += new KeyPressEventHandler(this.OnKeyPressEvent);
this.KeyUp += new KeyEventHandler(this.OnKeyUpEvent);
this.Resize += new EventHandler(this.OnResizeEvent);
this.MouseMove += new MouseEventHandler(this.OnMouseMove);
this.MouseDown += new MouseEventHandler(this.OnMouseDown);
this.MouseUp += new MouseEventHandler(this.OnMouseUp);
FlipBuffer();
Cursor.Show();
}
public FormMain()
{
InitializeComponent();
BGpath = currentDir + @"DATA\IMG\background.jpg";
CHpath = currentDir + @"DATA\IMG\actor.png";
btnSTART.Enabled = false;
btnStep.Enabled = false;
checkBG.Checked = checkCH.Checked = checkTXT.Checked = true;
btnBackColor.BackColor = Color.White;
btnForeColor.ForeColor = Color.White;
btnBackColor.ForeColor = Color.Black;
btnForeColor.BackColor = Color.Black;
Label lab = new Label();
lab.BackColor = Color.Transparent;
ThumbPicCH.Controls.Add(lab);
btnStep.Text = "��ʼ��������";
GThumb = panel1.CreateGraphics();
GThumb.Clear(Color.White);
LoadFile();
}
/// <summary>
/// Constructs a new instance.
/// </summary>
/// <param name="width">The width of the backing store in pixels.</param>
/// <param name="height">The height of the backing store in pixels.</param>
/// <param name="renderer">GWEN renderer.</param>
public TextRenderer(int width, int height, FreezingArcherGwenRenderer renderer)
{
if (width <= 0)
throw new ArgumentOutOfRangeException("width");
if (height <= 0)
throw new ArgumentOutOfRangeException("height");
bmp = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
gfx = Graphics.FromImage(bmp);
gfx.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
gfx.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
gfx.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
// NOTE: TextRenderingHint.AntiAliasGridFit looks sharper and in most cases better
// but it comes with a some problems.
//
// 1. Graphic.MeasureString and format.MeasureCharacterRanges
// seem to return wrong values because of this.
//
// 2. While typing the kerning changes in random places in the sentence.
//
// Until 1st problem is fixed we should use TextRenderingHint.AntiAlias... :-(
gfx.TextRenderingHint = TextRenderingHint.AntiAlias;
gfx.Clear(Color.Transparent);
texture = new Texture(renderer) {Width = width, Height = height};
}
public static void Draw(ref List<long> Data, Graphics g)
{
List<double> normalized_data = new List<double>();
lock (Data)
{
if (Data.Count > 100)
{
for (int remove = 1; remove <= 10; remove++)
{
Data.RemoveAt((Data.Count - 1) / remove);
}
}
long max = 0;
for (int d = 0; d < Data.Count; d++) if (Data[d] > max) max = Data[d];
for (int d = 0; d < Data.Count; d++) normalized_data.Add((double)Data[d] / Math.Max((double)max, 0.0000001));
}
RectangleF bounds = g.VisibleClipBounds;
g.Clear(Color.DarkGray);
for (int d = 0; d < normalized_data.Count - 1; d++)
{
g.DrawLine(Pens.White,
((float)d / (float)normalized_data.Count) * bounds.Width,
bounds.Height - ((float)normalized_data[d] * bounds.Height),
(((float)d + 1) / (float)normalized_data.Count) * bounds.Width,
bounds.Height - ((float)normalized_data[d + 1] * bounds.Height));
}
}
// ���»���
public void PaintPalette(Graphics gp)
{
gp.Clear(this._bgColor);
this._food.Paint(gp);
foreach (Block b in this._blocks)
b.Paint(gp);
}
public IDisposable CreateContext()
{
_gfx = Graphics.FromImage(_bitmap);
_gfx.Init();
_gfx.Clear(System.Drawing.Color.Transparent);
return _gfx;
}
}//end constructor
//call the paint method
public override void paint (Graphics graphics)
{
try
{
//save the old value of the circle position
previousLeftPosition = leftPosition;
previousTopPosition = topPosition;
//put this thread to sleep
Thread.Sleep(speed);
//lock thread to prevent thread from running back on itself
lock (typeof(Thread))
{
leftPosition = leftPosition + base.directionX;
topPosition = topPosition + base.directionY;
base.CheckCoordinates();
//grouped the drawing functions together like this to slightly reduce flickering
graphics.DrawEllipse(new System.Drawing.Pen(Color.White), previousLeftPosition, previousTopPosition, width, height);
graphics.DrawEllipse(new System.Drawing.Pen(shapeColor), leftPosition, topPosition, width, height);
}
}
catch
{
//force the thread to end, but only after removing the shape from the screen
graphics.Clear(Color.White);
Thread.CurrentThread.Abort();
}
}//end paint
/// <summary>
/// Constructs a new instance.
/// </summary>
/// <param name="width">The width of the backing store in pixels.</param>
/// <param name="height">The height of the backing store in pixels.</param>
/// <param name="renderer">GWEN renderer.</param>
public TextRenderer(int width, int height, Renderer.OpenTK renderer)
{
if (width <= 0)
throw new ArgumentOutOfRangeException("width");
if (height <= 0)
throw new ArgumentOutOfRangeException("height");
if (GraphicsContext.CurrentContext == null)
throw new InvalidOperationException("No GraphicsContext is current on the calling thread.");
bmp = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
gfx = Graphics.FromImage(bmp);
// NOTE: TextRenderingHint.AntiAliasGridFit looks sharper and in most cases better
// but it comes with a some problems.
//
// 1. Graphic.MeasureString and format.MeasureCharacterRanges
// seem to return wrong values because of this.
//
// 2. While typing the kerning changes in random places in the sentence.
//
// Until 1st problem is fixed we should use TextRenderingHint.AntiAlias... :-(
gfx.TextRenderingHint = TextRenderingHint.AntiAlias;
gfx.Clear(Color.Transparent);
texture = new Texture(renderer) {Width = width, Height = height};
}
//Render a Drawing
public static void Render(DnaDrawing drawing,Graphics g,int scale)
{
g.Clear(Color.Black);
foreach (DnaPolygon polygon in drawing.Polygons)
Render(polygon, g, scale);
}
//Render a Drawing
public static void Render(DnaDrawing drawing,Graphics g,int scale)
{
g.Clear(Color.Black);
foreach (DnaShape s in drawing.Shapes)
s.Render(g, scale);
}
void Former.new21file()
{
pixels = new PixelButton[64, 32];
map = new Bitmap(64,32);
gra = Graphics.FromImage(map);
gra.Clear(Color.Transparent);
}
public void Draw(Graphics g)
{
g.Clear(Color.Gray);
PointF cellSize = new PointF((float)Size.X / (ChessGameField.FIELD_SIZE), (float)Size.Y / (ChessGameField.FIELD_SIZE));
for (int i = 0; i <= ChessGameField.FIELD_SIZE; ++i)
{
g.DrawLine(Pens.Black, Pos.X + i * cellSize.X, Pos.Y, Pos.X + i * cellSize.X, Pos.Y + Size.Y);
}
for (int i = 0; i <= ChessGameField.FIELD_SIZE; ++i)
{
g.DrawLine(Pens.Black, Pos.X, Pos.Y + i * cellSize.Y, Pos.X + Size.X, Pos.Y + i * cellSize.Y);
}
Field.ForEachCell((pos, cell) => { if (cell.figure != null) cell.figure.Draw(g, GetColor(cell.figure.GetOwner()), GetCellPos(pos, cellSize), cellSize); return true; });
if (State == ActionState.Selected)
{
PointF pos = GetCellPos(SelectedPoint, cellSize);
Pen pen = new Pen(Brushes.Green, 2);
int border = 4;
g.DrawRectangle(pen, new Rectangle((int)pos.X + border + 1, (int)pos.Y + border + 1, (int)cellSize.X - border*2, (int)cellSize.Y - border*2));
}
}
void Galattron_Load(object sender, EventArgs e)
{
b=new Bitmap(484,461);
g=Graphics.FromImage(b);
g.Clear(Color.Black);
pictureBox1.Image=b;
}
private void wypelniony()
{
bmp = new Bitmap((int)pbWIDTH, (int)pbHEIGHT);
Point p1 = new Point((int)(pbWIDTH / 6), (int)(pbHEIGHT / 2));
Point p2 = new Point((int)(pbWIDTH * 5 / 6), (int)(pbHEIGHT / 2));
Point p1_25 = new Point(pbWIDTH / 3, pbHEIGHT / 4 * 3);
Point p2_25 = new Point((int)(pbWIDTH / 3 * 2), (int)(pbHEIGHT / 4 * 3));
Point p1_75 = new Point((int)(pbWIDTH / 3), (int)(pbHEIGHT / 4));
Point p2_75 = new Point((int)(pbWIDTH / 3 * 2), (int)(pbHEIGHT / 4));
Pen pen1 = new Pen(Brushes.Black, width_pen1);
Pen pen2 = new Pen(Brushes.Black, width_pen2);
g = Graphics.FromImage(bmp);
g.Clear(Color.CornflowerBlue);
g.FillRectangle(Brushes.White, new Rectangle(0, 0, pbWIDTH, pbHEIGHT - (int)(pbComplete * pbUnit)));
g.DrawRectangle(pen1, 0, 0, pbWIDTH, pbHEIGHT);
g.DrawLine(pen2, p1, p2);
g.DrawLine(pen2, p1_25, p2_25);
g.DrawLine(pen2, p1_75, p2_75);
//g.DrawString(pbComplete + "%", new Font("Arial", pbHEIGHT / 5),Brushes.Black,new PointF(pbWIDTH/12,pbHEIGHT/4));
this.Image = bmp;
//return bmp;
}
//Render a Drawing
public static void Render(DnaDrawing drawing,Graphics g,int scale)
{
g.Clear(Tools.avgColour);
foreach (DnaPolygon polygon in drawing.Polygons)
Render(polygon, g, scale);
}
public void DrawInto(Graphics g)
{
int cellWidth = Width / puzzle.Size;
int cellHeight = Height / puzzle.Size;
g.Clear(Color.White);
for (int x = 1; x <= puzzle.Size - 1; x++)
{
g.DrawLine(Pens.Black, new Point(cellWidth * x, 0), new Point(cellWidth * x, Height));
g.DrawLine(Pens.Black, new Point(0, cellHeight * x), new Point(Width, cellHeight * x));
}
for (int i = 0; i < puzzle.Size; i++)
{
for (int j = 0; j < puzzle.Size; j++)
{
float y = cellHeight * i + cellHeight / 2 - font.Height / 2;
float x = cellWidth * j + cellWidth / 2 - font.Size / 2;
if (showSolution && puzzle.IsSolution(j, i))
g.FillRectangle(new SolidBrush(Color.FromArgb(100, Color.Yellow)), new Rectangle(new Point(cellWidth * j, cellHeight * i), new Size(cellWidth, cellHeight)));
g.DrawString(puzzle[i, j].ToString(), font, Brushes.Black, new PointF(x, y));
}
}
}
public void DrawTitle(Graphics g, List<byte> data)
{
_currentData = data;
_drawKind = DrawKind.Title;
g.Clear(SystemColors.Control);
Brush brush = new SolidBrush(Color.Gray);
int x = _XOffset;
int y = 0;
int scale = Scale;
int pos = 0;
int length = data.Count;
while (pos < length)
{
byte b1 = data[pos];
++pos;
y += scale;
if (b1 == 11)
{
g.FillRectangle(brush, x, y, scale, scale);
}
if (b1 == 200)
{
y = 0;
x += scale;
}
}
}
public override void DrawRect(System.Drawing.RectangleF dirtyRect)
{
// var gc = NSGraphicsContext.FromGraphicsPort(
// NSGraphicsContext.CurrentContext.GraphicsPort.Handle,true);
// var gc = NSGraphicsContext.CurrentContext;
//
// var g = new Graphics(gc.GraphicsPort);
var g = new Graphics();
// NSView does not have a background color so we just use Clear to white here
g.Clear(Color.White);
//RectangleF ClientRectangle = this.Bounds;
RectangleF ClientRectangle = dirtyRect;
// Following codes draw a line from (0, 0) to (1, 1) in unit of inch:
/*g.PageUnit = GraphicsUnit.Inch;
Pen blackPen = new Pen(Color.Black, 1/g.DpiX);
g.DrawLine(blackPen, 0, 0, 1, 1);*/
// Following code shifts the origin to the center of
// client area, and then draw a line from (0,0) to (1, 1) inch:
g.PageUnit = GraphicsUnit.Inch;
g.TranslateTransform((ClientRectangle.Width / g.DpiX) / 2,
(ClientRectangle.Height / g.DpiY) / 2);
Pen greenPen = new Pen(Color.Green, 1 / g.DpiX);
g.DrawLine(greenPen, 0, 0, 1, 1);
g.Dispose ();
}
/// <summary>
/// 压缩图片，返回map
/// </summary>
/// <param name="width">宽度</param>
/// <param name="height">高度</param>
/// <returns></returns>
public Bitmap ResizeImg(int width, int height)
{
if (_oldImg == null)
return null;
int ow = _oldImg.Width, oh = _oldImg.Height; //原始大小
if (height == -2)
{
var rale = (double)width / Math.Max(ow, oh); //压缩比例
width = (int)Math.Ceiling(ow * rale);
height = (int)Math.Ceiling(oh * rale);
}
else
{
width = (width != -1 ? width : ow);
height = (height != -1 ? height : oh);
}
var bm = new Bitmap(width, height, PixelFormat.Format32bppRgb);
_newGraphics = Graphics.FromImage(bm);
//呈现质量
_newGraphics.CompositingQuality = CompositingQuality.HighQuality;
//像素偏移方式
_newGraphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
//平滑处理
_newGraphics.SmoothingMode = SmoothingMode.HighQuality;
//插补模式,双三次插值法
_newGraphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
_newGraphics.Clear(Color.Transparent);
_newGraphics.DrawImage(_oldImg, new Rectangle(0, 0, width, height), new Rectangle(0, 0, ow, oh),
GraphicsUnit.Pixel);
//return "处理成功";
return bm;
}
public void new22file()
{
pixels = new PixelButton[64, 64];
map = new Bitmap(64, 64);
gra = Graphics.FromImage(map);
gra.Clear(Color.Transparent);
}
public override void DrawRect(System.Drawing.RectangleF dirtyRect)
{
Graphics g = new Graphics();
g.Clear(Color.White);
int width = 30;
int height = 128;
int y = 10;
// Create opaque color maps with alpha = 255:
ColorMap cm = new ColorMap();
Font aFont = new Font("Arial", 20, FontStyle.Bold);
g.DrawString("OPAQUE COLOR", aFont, Brushes.Black, 10, 60);
DrawColorBar(g, 10, y, width, height, cm, "Spring");
DrawColorBar(g, 10 + 40, y, width, height, cm, "Summer");
DrawColorBar(g, 10 + 2 * 40, y, width, height, cm, "Autumn");
DrawColorBar(g, 10 + 3 * 40, y, width, height, cm, "Winter");
DrawColorBar(g, 10 + 4 * 40, y, width, height, cm, "Jet");
DrawColorBar(g, 10 + 5 * 40, y, width, height, cm, "Gray");
DrawColorBar(g, 10 + 6 * 40, y, width, height, cm, "Hot");
DrawColorBar(g, 10 + 7 * 40, y, width, height, cm, "Cool");
y = y + 150;
// Create transparent color maps with alpha = 150:
ColorMap cm1 = new ColorMap(64, 150);
g.DrawString("TRANSPARENT COLOR", aFont, Brushes.Black, 10, 210);
DrawColorBar(g, 10, y, width, height, cm1, "Spring");
DrawColorBar(g, 10 + 40, y, width, height, cm1, "Summer");
DrawColorBar(g, 10 + 2 * 40, y, width, height, cm1, "Autumn");
DrawColorBar(g, 10 + 3 * 40, y, width, height, cm1, "Winter");
DrawColorBar(g, 10 + 4 * 40, y, width, height, cm1, "Jet");
DrawColorBar(g, 10 + 5 * 40, y, width, height, cm1, "Gray");
DrawColorBar(g, 10 + 6 * 40, y, width, height, cm1, "Hot");
DrawColorBar(g, 10 + 7 * 40, y, width, height, cm1, "Cool");
}
//פונקציה שמשנה גודל לתמונות
static System.Drawing.Image FixedSize(System.Drawing.Image imgPhoto, int Width, int Height)
{
int sourceWidth = Convert.ToInt32(imgPhoto.Width);
int sourceHeight = Convert.ToInt32(imgPhoto.Height);
int sourceX = 0;
int sourceY = 0;
int destX = 0;
int destY = 0;
float nPercent = 0;
float nPercentW = 0;
float nPercentH = 0;
nPercentW = ((float)Width / (float)sourceWidth);
nPercentH = ((float)Height / (float)sourceHeight);
if (nPercentH < nPercentW)
{
nPercent = nPercentH;
destX = System.Convert.ToInt16((Width - (sourceWidth * nPercent)) / 2);
}
else
{
nPercent = nPercentW;
destY = System.Convert.ToInt16((Height - (sourceHeight * nPercent)) / 2);
}
int destWidth = (int)(sourceWidth * nPercent);
int destHeight = (int)(sourceHeight * nPercent);
System.Drawing.Bitmap bmPhoto = new System.Drawing.Bitmap(Width, Height, PixelFormat.Format24bppRgb);
bmPhoto.SetResolution(imgPhoto.HorizontalResolution, imgPhoto.VerticalResolution);
System.Drawing.Graphics grPhoto = System.Drawing.Graphics.FromImage(bmPhoto);
grPhoto.Clear(System.Drawing.Color.White);
grPhoto.InterpolationMode = InterpolationMode.HighQualityBicubic;
grPhoto.DrawImage(imgPhoto,
new System.Drawing.Rectangle(destX, destY, destWidth, destHeight),
new System.Drawing.Rectangle(sourceX, sourceY, sourceWidth, sourceHeight),
System.Drawing.GraphicsUnit.Pixel);
grPhoto.Dispose();
return(bmPhoto);
}
private static System.Drawing.Bitmap RotateImg
(System.Drawing.Bitmap bmp, float angle)
{
angle = angle % 360;
if (angle > 180)
{
angle -= 360;
}
float sin = (float)Math.Abs(Math.Sin(angle *
Math.PI / 180.0)); // this function takes radians
float cos = (float)Math.Abs(Math.Cos(angle * Math.PI / 180.0)); // this one too
float newImgWidth = sin * bmp.Height + cos * bmp.Width;
float newImgHeight = sin * bmp.Width + cos * bmp.Height;
float originX = 0f;
float originY = 0f;
if (angle > 0)
{
if (angle <= 90)
{
originX = sin * bmp.Height;
}
else
{
originX = newImgWidth;
originY = newImgHeight - sin * bmp.Width;
}
}
else
{
if (angle >= -90)
{
originY = sin * bmp.Width;
}
else
{
originX = newImgWidth - sin * bmp.Height;
originY = newImgHeight;
}
}
System.Drawing.Bitmap newImg =
new System.Drawing.Bitmap((int)newImgWidth, (int)newImgHeight);
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(newImg);
g.Clear(System.Drawing.Color.White);
g.TranslateTransform(originX, originY); // offset the origin to our calculated values
g.RotateTransform(angle); // set up rotate
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBilinear;
g.DrawImageUnscaled(bmp, 0, 0); // draw the image at 0, 0
g.Dispose();
return(newImg);
}
public void makeThumbnail(string it, string Imageurl)
{
if (File.Exists(Server.MapPath("~/images/" + it + ".jpg")))
{
return;
}
else
{
try
{
System.Net.WebRequest request = System.Net.WebRequest.Create(Imageurl);
request.Timeout = 10000;
System.Net.HttpWebResponse httpresponse = (System.Net.HttpWebResponse)request.GetResponse();
Stream s = httpresponse.GetResponseStream();
System.Drawing.Image img = System.Drawing.Image.FromStream(s);
int towidth = 135;
int toheight = 80;
int x = 0;
int y = 0;
int ow = img.Width;
int oh = img.Height;
System.Drawing.Image bitmap = new System.Drawing.Bitmap(towidth, toheight);
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.Clear(System.Drawing.Color.Transparent);
g.DrawImage(img, new System.Drawing.Rectangle(0, 0, towidth, toheight),
new System.Drawing.Rectangle(x, y, ow, oh),
System.Drawing.GraphicsUnit.Pixel);
try
{
bitmap.Save(Server.MapPath("~/images/" + it + ".jpg"), System.Drawing.Imaging.ImageFormat.Jpeg);
}
catch (System.Exception e)
{
throw e;
}
finally
{
img.Dispose();
bitmap.Dispose();
g.Dispose();
}
return;
}
catch
{
return;
}
}
}
public static string createModel(String[] array)
{
if (array.Length > 0)
{
System.Drawing.Bitmap bm = new System.Drawing.Bitmap(400, array.Length * 90);
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bm);
g.Clear(System.Drawing.Color.White);
int x = 100;
int y = 10;
System.Drawing.StringFormat f = new System.Drawing.StringFormat();
f.Alignment = System.Drawing.StringAlignment.Center;
f.LineAlignment = System.Drawing.StringAlignment.Center;
System.Drawing.Font font;
System.Drawing.Drawing2D.LinearGradientBrush b = new System.Drawing.Drawing2D.LinearGradientBrush(new System.Drawing.Point(0, 40), new System.Drawing.Point(30, 130), System.Drawing.Color.GreenYellow, System.Drawing.Color.LemonChiffon);
for (int i = 0; i < array.Length; i++)
{
font = new System.Drawing.Font("Arial Unicode MS", 10, System.Drawing.FontStyle.Regular);
g.DrawImageUnscaled(System.Drawing.Image.FromFile(HttpContext.Current.Request.MapPath("tskOval.png")), x, y);
g.DrawString(array[i].Substring(0, (array[i].Length > 52 ? 52 : array[i].Length)), font, System.Drawing.Brushes.Black, new System.Drawing.Rectangle(x + 30, y + 6, 172, 40), f);
y += 85;
}
x = 100;
y = 10;
int y1, y2;
for (int i = 1; i < array.Length; i++)
{
System.Drawing.Pen p = new System.Drawing.Pen(System.Drawing.Color.Black);
p.Width = 1.5F;
y1 = (((i) * 50) + y + ((i - 1) * 35));
y2 = (((i) * 50) + y + ((i) * 35));
g.DrawLine(p, 200, y1 + 2, 200, y2);
System.Drawing.Point[] pns = new System.Drawing.Point[4];
pns[0] = new System.Drawing.Point(195, y2 - 5);
pns[1] = new System.Drawing.Point(200, y2);
pns[2] = new System.Drawing.Point(205, y2 - 5);
pns[3] = new System.Drawing.Point(195, y2 - 5);
g.FillPolygon(System.Drawing.Brushes.Black, pns);
// g.DrawString(((Node)SessionClass.Flow[i-1]).decision.Equals("True")?"Yes":"No", new System.Drawing.Font("Arial Unicode MS", 9, System.Drawing.FontStyle.Regular), System.Drawing.Brushes.Black, new System.Drawing.Point(205, y1 +6));
}
string res = HttpContext.Current.Server.MapPath("Results") + "\\User" + DateTime.Now.ToString("yyyyMMddhhmmss") + ".png";
bm.Save(res, System.Drawing.Imaging.ImageFormat.Png);
return("Results/" + res.Replace(HttpContext.Current.Server.MapPath("Results") + "\\", ""));
}
else
{
return("");
}
}
//另存图片，并修改大小。
public static void SaveImage(string fromFile, string toFile, double newWidth, double newHeight)
{
try
{
System.Drawing.Image myimage = System.Drawing.Image.FromStream(new MemoryStream(File.ReadAllBytes(fromFile)));
double oldWidth = myimage.Width;
double oldHeight = myimage.Height;
if (oldWidth > newWidth || oldHeight > newHeight)
{
if (myimage.Width >= myimage.Height)
{
oldHeight = newHeight;
oldWidth = newHeight / myimage.Height * myimage.Width;
}
else
{
oldWidth = newWidth;
oldHeight = newWidth / myimage.Width * myimage.Height;
}
}
System.Drawing.Size mysize = new System.Drawing.Size((int)oldWidth, (int)oldHeight);
System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(mysize.Width, mysize.Height);
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.Clear(System.Drawing.Color.Transparent);
g.DrawImage(myimage, new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height), new System.Drawing.Rectangle(0, 0, myimage.Width, myimage.Height), System.Drawing.GraphicsUnit.Pixel);
bitmap.Save(toFile, System.Drawing.Imaging.ImageFormat.Jpeg);
g.Dispose();
bitmap.Dispose();
myimage.Dispose();
}
catch { }
}
public void AutoImage(string strCompanyName)
{
Int16 swidth = Convert.ToInt16(strCompanyName.Length * 13);
System.Drawing.Bitmap objBMP = new System.Drawing.Bitmap(swidth, 30);
System.Drawing.Graphics objGraphics = System.Drawing.Graphics.FromImage(objBMP);
objGraphics.Clear(System.Drawing.Color.White);
objGraphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
//' Configure font to use for text
System.Drawing.Font objFont = new System.Drawing.Font("Arial", 15, System.Drawing.FontStyle.Bold);
string randomStr = strCompanyName;
int[] myIntArray = new int[6];
int x;
//That is to create the random # and add it to our string
//Random autoRand = new Random();
//for (x = 0; x < 6; x++)
//{
// myIntArray[x] = System.Convert.ToInt32(autoRand.Next(0, 9));
// randomStr += (myIntArray[x].ToString());
//}
//This is to add the string to session cookie, to be compared later
//' Write out the text
objGraphics.DrawString(strCompanyName, objFont, System.Drawing.Brushes.Black, 3, 3);
//' Set the content type and return the image
//Response.ContentType = "image/GIF";
File.Delete(HttpContext.Current.Server.MapPath("~\\provider\\LogoImages\\Default.jpg"));
objBMP.Save(HttpContext.Current.Server.MapPath("~\\provider\\LogoImages\\Default.jpg"), objBMP.RawFormat);
objFont.Dispose();
objGraphics.Dispose();
objBMP.Dispose();
}
//图片上传
protected void btnSubmit_Click(object sender, EventArgs e)
{
ClearMethod();
HttpPostedFile hpf = uploadImage.PostedFile;
//取得文件名，不含路径
char[] splitChar = { '\\' };
string[] FilenameArray = hpf.FileName.Split(splitChar);
string Filename = FilenameArray[FilenameArray.Length - 1].ToLower();
//将用户输入的水印文字处理
//string sMessage = lineStr(TextBox3.Text.Trim().ToString(), 20);
if (hpf.FileName.Length < 1)
{
panelAttention.Visible = true;
lbAttention.Text = "请选择你要上传的图片文件";
return;
}
if (hpf.ContentType != "image/jpeg" && hpf.ContentType != "image/gif")
{
panelAttention.Visible = true;
lbAttention.Text = "只允许上传JPEG GIF文件";
return;
}
else
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
sb.Append(DateTime.Now.Year.ToString());
sb.Append(DateTime.Now.Month.ToString());
sb.Append(DateTime.Now.Day.ToString());
sb.Append(DateTime.Now.Hour.ToString());
sb.Append(DateTime.Now.Minute.ToString());
sb.Append(DateTime.Now.Second.ToString());
if (Filename.ToLower().EndsWith("gif"))
{
sb.Append(".gif");
}
else if (Filename.ToLower().EndsWith("jpg"))
{
sb.Append(".jpg");
}
else if (Filename.ToLower().EndsWith("jpeg"))
{
sb.Append(".jpeg");
}
Filename = sb.ToString();
//保存图片到服务器上
try
{
hpf.SaveAs(Server.MapPath("~") + "/images/onsale/wear/big_" + Filename);
}
catch (Exception ee)
{
panelAttention.Visible = true;
lbAttention.Text = "上传图片失败，原因：" + ee.Message;
return;
}
//生成缩略图
//原始图片名称
string originalFilename = hpf.FileName;
//生成高质量图片名称
string strFile = Server.MapPath("~") + "/images/onsale/wear/small/small_" + Filename;
//从文件获取图片对象
System.Drawing.Image image = System.Drawing.Image.FromStream(hpf.InputStream, true);
Double Width = Double.Parse(TextBox1.Text.Trim());
Double Height = Double.Parse(TextBox2.Text.Trim());
System.Double newWidth, newHeight;
if (image.Width > image.Height)
{
newWidth = Width;
newHeight = image.Height * (newWidth / image.Width);
}
else
{
newHeight = Height;
newWidth = image.Width * (newHeight / image.Height);
}
if (newWidth > Width)
{
newWidth = Width;
}
if (newHeight > Height)
{
newHeight = Height;
}
System.Drawing.Size size = new System.Drawing.Size((int)newWidth, (int)newHeight); //设置图片的宽度和高度
System.Drawing.Image bitmap = new System.Drawing.Bitmap(size.Width, size.Height); //新建bmp图片
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap); //新建画板
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High; //制定高质量插值法
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality; //设置高质量、低速度呈现平滑程度
g.Clear(System.Drawing.Color.White); //清空画布
//在制定位置画图
g.DrawImage(image, new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height), new System.Drawing.Rectangle(0, 0, image.Width, image.Height), System.Drawing.GraphicsUnit.Pixel);
//文字水印
System.Drawing.Graphics testGrahpics = System.Drawing.Graphics.FromImage(bitmap);
System.Drawing.Font font = new System.Drawing.Font("宋体", 10);
System.Drawing.Brush brush = new System.Drawing.SolidBrush(System.Drawing.Color.Black);
//分行
string sInput = TextBox3.Text.Trim().ToString(); //获取输入的水印文字
int coloum = Convert.ToInt32(TextBox4.Text); //获取每行的字符数
//利用循环，来依次输出
for (int i = 0, j = 0; i < sInput.Length; i += coloum, j++)
{
//若要修改水印文字在照片上的位置，可将20修改成你想要的任何值
if (j != sInput.Length / coloum)
{
string s = sInput.Substring(i, coloum);
testGrahpics.DrawString(s, font, brush, 20, 20 * (i / coloum + 1));
}
else
{
string s = sInput.Substring(i, sInput.Length % coloum);
testGrahpics.DrawString(s, font, brush, 20, 20 * (j + 1));
}
}
testGrahpics.Dispose();
//保存缩略图c
try
{
bitmap.Save(strFile, System.Drawing.Imaging.ImageFormat.Jpeg);
}
catch (Exception ex)
{
paneInfo.Visible = true;
lbInfo.Text = "保存缩略图失败" + ex.Message;
}
//释放资源
g.Dispose();
bitmap.Dispose();
image.Dispose();
}
Entity.PicturesItem pic = new Entity.PicturesItem();
pic.setItemID(int.Parse(lbItemId.Text));
// pic.setIntImageID(int.Parse(lbImageID.Text));
pic.setBigImg("images/onsale/wear/big_" + Filename);
pic.setSmallImg("images/onsale/wear/small/small_" + Filename);
pic.setAlt("");
switch (btnSubmit.Text)
{
case "新增": //新增模式
if (picture.InserItemsPic(pic))
{
panelSuccess.Visible = true;
lbSuccess.Text = "新增图片成功!";
}
else
{
panelError.Visible = true;
lbError.Text = "新增图片失败！";
}
break;
case "修改": //修改模式
//int.Parse(lbImageID.Text), int.Parse(lbItemId.Text), "images/onsale/wear/big_" + Filename, "images/onsale/wear/small/small_" + Filename, ""
if (picture.UpdatePicByID(pic))
{
panelSuccess.Visible = true;
lbSuccess.Text = "修改图片成功!";
}
else
{
panelError.Visible = true;
lbError.Text = "修改图片失败！";
}
break;
}
}
/// <summary>
/// 图片等比缩放并添加水印
/// </summary>
/// <param name="postedFile">原图HttpPostedFile对象</param>
/// <param name="savePath">缩略图存放地址</param>
/// <param name="targetWidth">指定的最大宽度</param>
/// <param name="targetHeight">指定的最大高度</param>
/// <param name="watermarkText">水印文字(为""表示不使用水印)</param>
/// <param name="watermarkImage">水印图片路径(为""表示不使用水印)</param>
/// <param name="waterTextFont">文字水印字体</param>
public static void ZoomAuto(System.Web.HttpPostedFile postedFile, string savePath, System.Double targetWidth, System.Double targetHeight, string watermarkText, string watermarkImage, Font waterTextFont)
{
//创建目录
string dir = Path.GetDirectoryName(savePath);
if (!Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
if (waterTextFont == null)
{
waterTextFont = new Font("黑体", 14, GraphicsUnit.Pixel);
}
//原始图片（获取原始图片创建对象，并使用流中嵌入的颜色管理信息）
System.Drawing.Image initImage = System.Drawing.Image.FromStream(postedFile.InputStream, true);
//原图宽高均小于模版，不作处理，直接保存
if (initImage.Width <= targetWidth && initImage.Height <= targetHeight)
{
//文字水印
if (watermarkText != "")
{
using (System.Drawing.Graphics gWater = System.Drawing.Graphics.FromImage(initImage))
{
System.Drawing.Font fontWater = waterTextFont;
System.Drawing.Brush brushWater = new SolidBrush(Color.White);
gWater.DrawString(watermarkText, fontWater, brushWater, 10, 10);
gWater.Dispose();
}
}
//透明图片水印
if (watermarkImage != "")
{
if (File.Exists(watermarkImage))
{
//获取水印图片
using (System.Drawing.Image wrImage = System.Drawing.Image.FromFile(watermarkImage))
{
//水印绘制条件：原始图片宽高均大于或等于水印图片
if (initImage.Width >= wrImage.Width && initImage.Height >= wrImage.Height)
{
Graphics gWater = Graphics.FromImage(initImage);
//透明属性
ImageAttributes imgAttributes = new ImageAttributes();
ColorMap colorMap = new ColorMap();
colorMap.OldColor = Color.FromArgb(255, 0, 255, 0);
colorMap.NewColor = Color.FromArgb(0, 0, 0, 0);
ColorMap[] remapTable = { colorMap };
imgAttributes.SetRemapTable(remapTable, ColorAdjustType.Bitmap);
float[][] colorMatrixElements =
{
new float[] { 1.0f, 0.0f, 0.0f, 0.0f, 0.0f },
new float[] { 0.0f, 1.0f, 0.0f, 0.0f, 0.0f },
new float[] { 0.0f, 0.0f, 1.0f, 0.0f, 0.0f },
new float[] { 0.0f, 0.0f, 0.0f, 0.5f, 0.0f },//透明度:0.5
new float[] { 0.0f, 0.0f, 0.0f, 0.0f, 1.0f }
};
ColorMatrix wmColorMatrix = new ColorMatrix(colorMatrixElements);
imgAttributes.SetColorMatrix(wmColorMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
gWater.DrawImage(wrImage, new Rectangle(initImage.Width - wrImage.Width, initImage.Height - wrImage.Height, wrImage.Width, wrImage.Height), 0, 0, wrImage.Width, wrImage.Height, GraphicsUnit.Pixel, imgAttributes);
gWater.Dispose();
}
wrImage.Dispose();
}
}
}
//保存
initImage.Save(savePath, System.Drawing.Imaging.ImageFormat.Jpeg);
}
else
{
//缩略图宽、高计算
double newWidth = initImage.Width;
double newHeight = initImage.Height;
//宽大于高或宽等于高（横图或正方）
if (initImage.Width > initImage.Height || initImage.Width == initImage.Height)
{
//如果宽大于模版
if (initImage.Width > targetWidth)
{
//宽按模版，高按比例缩放
newWidth = targetWidth;
newHeight = initImage.Height * (targetWidth / initImage.Width);
}
}
//高大于宽（竖图）
else
{
//如果高大于模版
if (initImage.Height > targetHeight)
{
//高按模版，宽按比例缩放
newHeight = targetHeight;
newWidth = initImage.Width * (targetHeight / initImage.Height);
}
}
//生成新图
//新建一个bmp图片
System.Drawing.Image newImage = new System.Drawing.Bitmap((int)newWidth, (int)newHeight);
//新建一个画板
System.Drawing.Graphics newG = System.Drawing.Graphics.FromImage(newImage);
//设置质量
newG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
newG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//置背景色
newG.Clear(Color.White);
//画图
newG.DrawImage(initImage, new System.Drawing.Rectangle(0, 0, newImage.Width, newImage.Height), new System.Drawing.Rectangle(0, 0, initImage.Width, initImage.Height), System.Drawing.GraphicsUnit.Pixel);
//文字水印
if (watermarkText != "")
{
using (System.Drawing.Graphics gWater = System.Drawing.Graphics.FromImage(newImage))
{
System.Drawing.Font fontWater = waterTextFont;
System.Drawing.Brush brushWater = new SolidBrush(Color.White);
gWater.DrawString(watermarkText, fontWater, brushWater, 10, 10);
gWater.Dispose();
}
}
//透明图片水印
if (watermarkImage != "")
{
if (File.Exists(watermarkImage))
{
//获取水印图片
using (System.Drawing.Image wrImage = System.Drawing.Image.FromFile(watermarkImage))
{
//水印绘制条件：原始图片宽高均大于或等于水印图片
if (newImage.Width >= wrImage.Width && newImage.Height >= wrImage.Height)
{
Graphics gWater = Graphics.FromImage(newImage);
//透明属性
ImageAttributes imgAttributes = new ImageAttributes();
ColorMap colorMap = new ColorMap();
colorMap.OldColor = Color.FromArgb(255, 0, 255, 0);
colorMap.NewColor = Color.FromArgb(0, 0, 0, 0);
ColorMap[] remapTable = { colorMap };
imgAttributes.SetRemapTable(remapTable, ColorAdjustType.Bitmap);
float[][] colorMatrixElements =
{
new float[] { 1.0f, 0.0f, 0.0f, 0.0f, 0.0f },
new float[] { 0.0f, 1.0f, 0.0f, 0.0f, 0.0f },
new float[] { 0.0f, 0.0f, 1.0f, 0.0f, 0.0f },
new float[] { 0.0f, 0.0f, 0.0f, 0.5f, 0.0f },//透明度:0.5
new float[] { 0.0f, 0.0f, 0.0f, 0.0f, 1.0f }
};
ColorMatrix wmColorMatrix = new ColorMatrix(colorMatrixElements);
imgAttributes.SetColorMatrix(wmColorMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
gWater.DrawImage(wrImage, new Rectangle(newImage.Width - wrImage.Width, newImage.Height - wrImage.Height, wrImage.Width, wrImage.Height), 0, 0, wrImage.Width, wrImage.Height, GraphicsUnit.Pixel, imgAttributes);
gWater.Dispose();
}
wrImage.Dispose();
}
}
}
//保存缩略图
newImage.Save(savePath, System.Drawing.Imaging.ImageFormat.Jpeg);
//释放资源
newG.Dispose();
newImage.Dispose();
initImage.Dispose();
}
}
/// <summary>
/// 缩小图片
/// </summary>
/// <param name="bitmap"></param>
/// <param name="w"></param>
/// <param name="h"></param>
/// <param name="mode"></param>
/// <returns></returns>
public static Image TBScaleBitmap(Image bitmap, int w, int h, string mode)
{
Bitmap map = new Bitmap(w, h);
System.Drawing.Graphics gra = System.Drawing.Graphics.FromImage(map);
gra.Clear(System.Drawing.Color.Transparent); //清空画布并以透明背景色填充
gra.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias; //使绘图质量最高，即消除锯齿
gra.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
gra.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
gra.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
gra.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
int towidth = w;
int toheight = h;
int x = 0;
int y = 0;
int ow = bitmap.Width;
int oh = bitmap.Height;
switch (mode)
{
case "HW": //指定高宽缩放（可能变形）
break;
case "W": //指定宽，高按比例
toheight = bitmap.Height * w / bitmap.Width;
break;
case "H": //指定高，宽按比例
towidth = bitmap.Width * h / bitmap.Height;
break;
case "Cut": //指定高宽裁减（不变形）
if ((double)bitmap.Width / (double)bitmap.Height > (double)towidth / (double)toheight)
{
oh = bitmap.Height;
ow = bitmap.Height * towidth / toheight;
y = 0;
x = (bitmap.Width - ow) / 2;
}
else
{
ow = bitmap.Width;
oh = bitmap.Width * h / towidth;
x = 0;
y = (bitmap.Height - oh) / 2;
}
break;
case "MaxHW": //最大宽高比例缩放，比如原100*50->50*30，则结果是50*25
var rmaxhw_d1w = bitmap.Width * 1.0 / w;
var rmaxhw_d2h = bitmap.Height * 1.0 / h;
if (rmaxhw_d1w > rmaxhw_d2h)
{
if (rmaxhw_d1w <= 1)
{
towidth = bitmap.Width; h = bitmap.Height;
goto case "HW";
}
towidth = w;
goto case "W";
}
if (rmaxhw_d2h <= 1)
{
towidth = bitmap.Width; h = bitmap.Height;
goto case "HW";
}
toheight = h;
goto case "H";
default:
break;
}
gra.DrawImage(bitmap, new System.Drawing.Rectangle(0, 0, towidth, toheight), new System.Drawing.Rectangle(x, y, ow, oh), System.Drawing.GraphicsUnit.Pixel);
gra.Flush();
gra.Dispose();
bitmap.Dispose();
return(map);
}
public override System.Drawing.Bitmap GetNext()
{
System.Drawing.Bitmap result;
lock (this.newBitmap)
{
lock (this.oldBitmap)
{
if (this.nowState == MarqueeDisplayState.First)
{
this.nowPositionF += this.step;
if (this.nowPositionF > (float)((this.newBitmap.Height + this.newBitmap.Width) / 2))
{
this.nowState = MarqueeDisplayState.Stay;
}
this.nowPosition = (int)this.nowPositionF;
this.getPoint1(this.nowPosition);
this.getPoint2(this.nowPosition);
this.getPoint3(this.nowPosition);
this.getPoint4(this.nowPosition);
}
else
{
if (this.nowState == MarqueeDisplayState.Stay)
{
this.StayNum += 42;
if (this.StayNum > this.effect.Stay)
{
if (this.effect.ExitMode == 0)
{
result = null;
return(result);
}
this.nowState = MarqueeDisplayState.Exit;
}
result = new System.Drawing.Bitmap(this.newBitmap);
return(result);
}
if (this.nowState == MarqueeDisplayState.Exit)
{
result = this.Exit.GetNext();
return(result);
}
}
System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(this.oldBitmap);
System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(bitmap);
System.Drawing.Bitmap image = new System.Drawing.Bitmap(this.newBitmap);
System.Drawing.Graphics graphics2 = System.Drawing.Graphics.FromImage(image);
System.Drawing.Drawing2D.GraphicsPath graphicsPath = new System.Drawing.Drawing2D.GraphicsPath();
graphicsPath.AddPolygon(this.pa1);
graphics2.SetClip(graphicsPath);
graphics2.Clear(System.Drawing.Color.Transparent);
graphicsPath.ClearMarkers();
graphicsPath.AddPolygon(this.pa2);
graphics2.SetClip(graphicsPath);
graphics2.Clear(System.Drawing.Color.Transparent);
graphicsPath.ClearMarkers();
graphicsPath.AddPolygon(this.pa3);
graphics2.SetClip(graphicsPath);
graphics2.Clear(System.Drawing.Color.Transparent);
graphicsPath.ClearMarkers();
graphicsPath.AddPolygon(this.pa4);
graphics2.SetClip(graphicsPath);
graphics2.Clear(System.Drawing.Color.Transparent);
graphics.DrawImage(image, new System.Drawing.Point(0, 0));
result = bitmap;
}
}
return(result);
}
/// <summary>
/// 生成缩略图
/// </summary>
/// <param name="originalImagePath">源图路径（物理路径）</param>
/// <param name="thumbnailPath">缩略图路径（物理路径）</param>
/// <param name="width">缩略图宽度</param>
/// <param name="height">缩略图高度</param>
/// <param name="thumbnailMode">生成缩略图的方式</param>
public static void MakeThumbnail(string originalImagePath, string thumbnailPath, int width, int height, ThumbnailMode thumbnailMode)
{
System.Drawing.Image originalImage = System.Drawing.Image.FromFile(originalImagePath);
int towidth = width;
int toheight = height;
int x = 0;
int y = 0;
int ow = originalImage.Width;
int oh = originalImage.Height;
switch (thumbnailMode)
{
case ThumbnailMode.None:
if (ow > oh)
{
toheight = originalImage.Height * width / originalImage.Width;
}
else if (oh > ow)
{
towidth = originalImage.Width * height / originalImage.Height;
}
break;
case ThumbnailMode.HW: //指定高宽缩放（可能变形）
break;
case ThumbnailMode.W: //指定宽，高按比例
toheight = originalImage.Height * width / originalImage.Width;
break;
case ThumbnailMode.H: //指定高，宽按比例
towidth = originalImage.Width * height / originalImage.Height;
break;
case ThumbnailMode.Cut: //指定高宽裁减（不变形）
if ((double)originalImage.Width / (double)originalImage.Height > (double)towidth / (double)toheight)
{
oh = originalImage.Height;
ow = originalImage.Height * towidth / toheight;
y = 0;
x = (originalImage.Width - ow) / 2;
}
else
{
ow = originalImage.Width;
oh = originalImage.Width * height / towidth;
x = 0;
y = (originalImage.Height - oh) / 2;
}
break;
default:
break;
}
System.Drawing.Image bitmap = new System.Drawing.Bitmap(towidth, toheight);
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.Clear(System.Drawing.Color.Transparent);
g.DrawImage(originalImage, new System.Drawing.Rectangle(0, 0, towidth, toheight), new System.Drawing.Rectangle(x, y, ow, oh), System.Drawing.GraphicsUnit.Pixel);
try
{
thumbnailPath = thumbnailPath.Replace("/", "\\");
string savePath = thumbnailPath.Substring(0, thumbnailPath.LastIndexOf("\\"));
if (!Directory.Exists(savePath))
{
Directory.CreateDirectory(savePath);
}
bitmap.Save(thumbnailPath, GetImageFormat(thumbnailPath));
}
catch (System.Exception e)
{
throw e;
}
finally
{
originalImage.Dispose();
bitmap.Dispose();
g.Dispose();
}
}
/// <summary>
/// 生成缩略图(最终图片固定大小,图片按比例缩小,并为缩略图加上边框,以jpg格式保存)
/// </summary>
/// <param name="sourceImg">原图片(物理路径)</param>
/// <param name="toPath">缩略图存放地址(物理路径,带文件名)</param>
/// <param name="width">缩略图宽度</param>
/// <param name="height">缩略图高度</param>
/// <param name="backColor">如果图片按比例缩小后不能填充满缩略图,则使用此颜色填充(比如"#FFFFFF")</param>
public static void MakePic(string sourceImg, string toPath, int width, int height, string backColor)
{
System.Drawing.Image originalImage = System.Drawing.Image.FromFile(sourceImg);
int towidth = width;
int toheight = height;
int x = 0;
int y = 0;
int ow = originalImage.Width;
int oh = originalImage.Height;
string mode;
if (ow < towidth && oh < toheight)
{
towidth = ow;
toheight = oh;
}
else
{
if (originalImage.Width / originalImage.Height >= width / height)
{
mode = "W";
}
else
{
mode = "H";
}
switch (mode)
{
case "W": //指定宽，高按比例
toheight = originalImage.Height * width / originalImage.Width;
break;
case "H": //指定高，宽按比例
towidth = originalImage.Width * height / originalImage.Height;
break;
default:
break;
}
}
//新建一个bmp图片
System.Drawing.Image bitmap = new System.Drawing.Bitmap(width, height);
//新建一个画板
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);
//设置高质量插值法
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
//设置高质量,低速度呈现平滑程度
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//清空画布并以指定颜色填充
g.Clear(ColorTranslator.FromHtml(backColor));
//在指定位置并且按指定大小绘制原图片的指定部分
int top = (height - toheight) / 2;
int left = (width - towidth) / 2;
g.DrawImage(originalImage, new System.Drawing.Rectangle(left, top, towidth, toheight),
new System.Drawing.Rectangle(x, y, ow, oh),
System.Drawing.GraphicsUnit.Pixel);
//Pen pen = new Pen(ColorTranslator.FromHtml(borderColor));
//g.DrawRectangle(pen, 0, 0, width - 1, height - 1);
try
{
//以jpg格式保存缩略图
bitmap.Save(toPath, System.Drawing.Imaging.ImageFormat.Jpeg);
}
catch (System.Exception e)
{
throw e;
}
finally
{
originalImage.Dispose();
bitmap.Dispose();
g.Dispose();
}
}
/// <summary>
/// 正方型裁剪
/// 以图片中心为轴心，截取正方型，然后等比缩放
/// 用于头像处理
/// </summary>
/// <param name="postedFile">原图HttpPostedFile对象</param>
/// <param name="fileSaveUrl">缩略图存放地址</param>
/// <param name="side">指定的边长（正方型）</param>
/// <param name="quality">质量（范围0-100）</param>
public static void CutForSquare(System.Web.HttpPostedFile postedFile, string fileSaveUrl, int side, int quality)
{
//创建目录
string dir = Path.GetDirectoryName(fileSaveUrl);
if (!Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
//原始图片（获取原始图片创建对象，并使用流中嵌入的颜色管理信息）
System.Drawing.Image initImage = System.Drawing.Image.FromStream(postedFile.InputStream, true);
//原图宽高均小于模版，不作处理，直接保存
if (initImage.Width <= side && initImage.Height <= side)
{
initImage.Save(fileSaveUrl, System.Drawing.Imaging.ImageFormat.Jpeg);
}
else
{
//原始图片的宽、高
int initWidth = initImage.Width;
int initHeight = initImage.Height;
//非正方型先裁剪为正方型
if (initWidth != initHeight)
{
//截图对象
System.Drawing.Image pickedImage = null;
System.Drawing.Graphics pickedG = null;
//宽大于高的横图
if (initWidth > initHeight)
{
//对象实例化
pickedImage = new System.Drawing.Bitmap(initHeight, initHeight);
pickedG = System.Drawing.Graphics.FromImage(pickedImage);
//设置质量
pickedG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
pickedG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//定位
Rectangle fromR = new Rectangle((initWidth - initHeight) / 2, 0, initHeight, initHeight);
Rectangle toR = new Rectangle(0, 0, initHeight, initHeight);
//画图
pickedG.DrawImage(initImage, toR, fromR, System.Drawing.GraphicsUnit.Pixel);
//重置宽
initWidth = initHeight;
}
//高大于宽的竖图
else
{
//对象实例化
pickedImage = new System.Drawing.Bitmap(initWidth, initWidth);
pickedG = System.Drawing.Graphics.FromImage(pickedImage);
//设置质量
pickedG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
pickedG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//定位
Rectangle fromR = new Rectangle(0, (initHeight - initWidth) / 2, initWidth, initWidth);
Rectangle toR = new Rectangle(0, 0, initWidth, initWidth);
//画图
pickedG.DrawImage(initImage, toR, fromR, System.Drawing.GraphicsUnit.Pixel);
//重置高
initHeight = initWidth;
}
//将截图对象赋给原图
initImage = (System.Drawing.Image)pickedImage.Clone();
//释放截图资源
pickedG.Dispose();
pickedImage.Dispose();
}
//缩略图对象
System.Drawing.Image resultImage = new System.Drawing.Bitmap(side, side);
System.Drawing.Graphics resultG = System.Drawing.Graphics.FromImage(resultImage);
//设置质量
resultG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
resultG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//用指定背景色清空画布
resultG.Clear(Color.White);
//绘制缩略图
resultG.DrawImage(initImage, new System.Drawing.Rectangle(0, 0, side, side), new System.Drawing.Rectangle(0, 0, initWidth, initHeight), System.Drawing.GraphicsUnit.Pixel);
//关键质量控制
//获取系统编码类型数组,包含了jpeg,bmp,png,gif,tiff
ImageCodecInfo[] icis = ImageCodecInfo.GetImageEncoders();
ImageCodecInfo ici = null;
foreach (ImageCodecInfo i in icis)
{
if (i.MimeType == "image/jpeg" || i.MimeType == "image/bmp" || i.MimeType == "image/png" || i.MimeType == "image/gif")
{
ici = i;
}
}
EncoderParameters ep = new EncoderParameters(1);
ep.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)quality);
//保存缩略图
resultImage.Save(fileSaveUrl, ici, ep);
//释放关键质量控制所用资源
ep.Dispose();
//释放缩略图资源
resultG.Dispose();
resultImage.Dispose();
//释放原始图片资源
initImage.Dispose();
}
}
/// <summary>
/// Draw all entities stored in buffer
/// </summary>
public void Flush()
{
// initialize
Vector3D vLight = _vCameraPos - _vTarget; vLight.Normalize();
_boxDrawingCounter = 0;
_currentTransf = null;
System.Drawing.Graphics g = Graphics;
g.Clear(_backgroundColor);
if (EnableFaceSorting)
{
// sort face list
FaceComparison faceComparer = new FaceComparison(GetWorldToEyeTransformation());
_faces.Sort(faceComparer);
}
// draw background segments
foreach (Segment s in _segmentsBackground)
{
Draw(s);
}
// draw background faces
foreach (Face face in _facesBackground)
{
Draw(face, FaceDir.FRONT);
}
// draw all faces using solid / transparency depending on
foreach (Face face in _faces)
{
Draw(face, FaceDir.BACK);
}
// sort box list
if (_useBoxelOrderer)
{
BoxelOrderer boxelOrderer = new BoxelOrderer(_boxes);
boxelOrderer.Direction = _vTarget - _vCameraPos;
_boxes = boxelOrderer.GetSortedList();
}
else
{
_boxes.Sort(new BoxComparerSimplifiedPainterAlgo(GetWorldToEyeTransformation()));
}
// sort cylinder list
_cylinders.Sort(new CylinderComparerSimplifiedPainterAlgo(GetWorldToEyeTransformation()));
if (_cylinders.Count > 0)
{
// sort by Z
List <Drawable> drawableList = new List <Drawable>();
drawableList.AddRange(_boxes);
drawableList.AddRange(_cylinders);
drawableList.Sort(new DrawableComparerSimplifiedPainterAlgo());
List <Box> boxes = new List <Box>();
List <Cylinder> cylinders = new List <Cylinder>();
bool processingBox = drawableList[0] is Box;
foreach (Drawable drawable in drawableList)
{
Box b = drawable as Box;
Cylinder c = drawable as Cylinder;
if ((null != b) && processingBox)
{
boxes.Add(b);
}
else if ((null == b) && !processingBox)
{
cylinders.Add(c);
}
else
{
if (boxes.Count > 0)
{
BoxelOrderer boxelOrderer = new BoxelOrderer(boxes);
boxelOrderer.Direction = _vTarget - _vCameraPos;
boxes = boxelOrderer.GetSortedList();
// draw boxes
foreach (Box bb in boxes)
{
Draw(bb);
}
// clear
boxes.Clear();
}
if (cylinders.Count > 0)
{
cylinders.Sort(new CylinderComparerSimplifiedPainterAlgo(GetWorldToEyeTransformation()));
// draw cylinders
foreach (Cylinder cc in cylinders)
{
Draw(cc);
}
// clear
cylinders.Clear();
}
if (null != b)
{
boxes.Add(b);
processingBox = true;
}
else
{
cylinders.Add(c);
processingBox = false;
}
}
}
// remaining boxes
BoxelOrderer boxelOrdererRem = new BoxelOrderer(boxes);
boxelOrdererRem.Direction = _vTarget - _vCameraPos;
boxes = boxelOrdererRem.GetSortedList();
// draw boxes
foreach (Box bb in boxes)
{
Draw(bb);
}
// remaining cylinders
cylinders.Sort(new CylinderComparerSimplifiedPainterAlgo(GetWorldToEyeTransformation()));
// draw cylinders
foreach (Cylinder cc in cylinders)
{
Draw(cc);
}
// clear
boxes.Clear();
}
else
{
// draw all boxes
foreach (Box box in _boxes)
{
Draw(box);
}
}
// images inst
if (_listImageInst.Count > 0)
{
// --- sort image inst
Analysis analysis = _listImageInst[0].Analysis;
BBox3D bbox = analysis.Solution.BBoxGlobal;
List <Box> boxesImage = new List <Box>();
foreach (ImageInst imageInst in _listImageInst)
{
boxesImage.Add(imageInst.ToBox());
}
if (_useBoxelOrderer && false) // NOT WORKING ?
{
BoxelOrderer boxelOrderer = new BoxelOrderer(boxesImage);
boxelOrderer.TuneParam = 10.0;
boxelOrderer.Direction = _vTarget - _vCameraPos;
boxesImage = boxelOrderer.GetSortedList();
}
else
{
boxesImage.Sort(new BoxComparerSimplifiedPainterAlgo(GetWorldToEyeTransformation()));
}
// ---
List <ImageInst> listImageInstSorted = new List <ImageInst>();
foreach (Box b in boxesImage)
{
listImageInstSorted.Add(new ImageInst(analysis, new Vector3D(b.Length, b.Width, b.Height), b.BPosition));
}
// draw image inst
foreach (ImageInst im in listImageInstSorted)
{
Draw(im);
}
}
// draw faces : end
foreach (Face face in _faces)
{
Draw(face, FaceDir.FRONT);
}
// draw segment list (e.g. hatching)
foreach (Segment seg in _segments)
{
Draw(seg);
}
// draw cotation cubes
if (ShowDimensions)
{
foreach (DimensionCube qc in _dimensions)
{
qc.Draw(this);
}
}
}
// originally from https://stackoverflow.com/questions/2042155/high-quality-graph-waveform-display-component-in-c-sharp,
// adapted to use the pcm_f32le format and replace GDI+ with WPF drawing
private BitmapSource _Draw_GDI(CancellationToken ct, double height, double width)
{
isDrawing = true;
reader.Position = 0;
int bytesPerSample = (reader.WaveFormat.BitsPerSample / 8) * reader.WaveFormat.Channels;
//Give a size to the bitmap; either a fixed size, or something based on the length of the audio
System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap((int)width, (int)height);
System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(bitmap);
graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed;
graphics.Clear(System.Drawing.Color.Transparent);
System.Drawing.Pen bluePen = new System.Drawing.Pen(Constants.Editor.Waveform.ColourGDI);
int samplesPerPixel = (int)(reader.Length / (double)(height * bytesPerSample));
int bytesPerPixel = bytesPerSample * samplesPerPixel;
int bytesRead;
byte[] waveData = new byte[bytesPerPixel];
// draw each pixel of height
for (int y = 0; y < height; y++)
{
bytesRead = reader.Read(waveData, 0, bytesPerPixel);
if (bytesRead == 0)
{
break;
}
float low = 0;
float high = 0;
// read all samples for this pixel and take the extreme values
for (int n = 0; n < bytesRead; n += bytesPerSample)
{
float sample = BitConverter.ToSingle(waveData, n);
if (sample < low)
{
low = sample;
}
if (sample > high)
{
high = sample;
}
if (ct.IsCancellationRequested)
{
isDrawing = false;
return(null);
}
}
float lowPercent = (low + 1) / 2;
float highPercent = (high + 1) / 2;
float lowValue = (float)width * lowPercent;
float highValue = (float)width * highPercent;
graphics.DrawLine(bluePen, lowValue, (int)height - y, highValue, (int)height - y);
}
//bitmap.Save("out.bmp");
// https://stackoverflow.com/questions/94456/load-a-wpf-bitmapimage-from-a-system-drawing-bitmap#1069509
BitmapSource b = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(bitmap.GetHbitmap(), IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromWidthAndHeight((int)width, (int)height));
b.Freeze();
isDrawing = false;
return(b);
}
private void CreateCheckCodeImage(string checkCode)
{
if (checkCode == null || checkCode.Trim() == String.Empty)
{
return;
}
System.Drawing.Bitmap image = new System.Drawing.Bitmap((int)Math.Ceiling((checkCode.Length * 15.0 + 40)), 23);
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(image);
try
{
//生成随机生成器
Random random = new Random();
//清空图片背景色
g.Clear(System.Drawing.Color.White);
//画图片的背景噪音线
for (int i = 0; i < 25; i++)
{
int x1 = random.Next(image.Width);
int x2 = random.Next(image.Width);
int y1 = random.Next(image.Height);
int y2 = random.Next(image.Height);
g.DrawLine(new System.Drawing.Pen(System.Drawing.Color.Silver), x1, y1, x2, y2);
}
System.Drawing.Font font = new System.Drawing.Font("Arial", 14, (System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic));
System.Drawing.Drawing2D.LinearGradientBrush brush = new System.Drawing.Drawing2D.LinearGradientBrush(new System.Drawing.Rectangle(0, 0, image.Width, image.Height), System.Drawing.Color.Blue, System.Drawing.Color.DarkRed, 1.2f, true);
int cySpace = 16;
for (int i = 0; i < validateCodeCount; i++)
{
g.DrawString(checkCode.Substring(i, 1), font, brush, (i + 1) * cySpace, 1);
}
//画图片的前景噪音点
for (int i = 0; i < 100; i++)
{
int x = random.Next(image.Width);
int y = random.Next(image.Height);
image.SetPixel(x, y, System.Drawing.Color.FromArgb(random.Next()));
}
//画图片的边框线
g.DrawRectangle(new System.Drawing.Pen(System.Drawing.Color.Silver), 0, 0, image.Width - 1, image.Height - 1);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
image.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);
Response.ClearContent();
Response.ContentType = "image/Gif";
Response.BinaryWrite(ms.ToArray());
}
finally
{
g.Dispose();
image.Dispose();
}
}
/// <summary>
/// 生成缩略图
/// </summary>
/// <param name="originalImagePath">源图路径（物理路径）</param>
/// <param name="thumbnailPath">缩略图路径（物理路径）</param>
/// <param name="width">缩略图宽度</param>
/// <param name="height">缩略图高度</param>
/// <param name="mode">生成缩略图的方式</param>
public static void MakeThumbnail(string originalImagePath, string thumbnailPath, int width, int height, string mode)
{
System.Drawing.Image originalImage = System.Drawing.Image.FromFile(originalImagePath);
int towidth = width;
int toheight = height;
int x = 0;
int y = 0;
int ow = originalImage.Width;
int oh = originalImage.Height;
switch (mode)
{
case "HW": //指定高宽缩放（可能变形）
break;
case "W": //指定宽，高按比例
toheight = originalImage.Height * width / originalImage.Width;
break;
case "H": //指定高，宽按比例
towidth = originalImage.Width * height / originalImage.Height;
break;
case "Cut": //指定高宽裁减（不变形）
if ((double)originalImage.Width / (double)originalImage.Height > (double)towidth / (double)toheight)
{
oh = originalImage.Height;
ow = originalImage.Height * towidth / toheight;
y = 0;
x = (originalImage.Width - ow) / 2;
}
else
{
ow = originalImage.Width;
oh = originalImage.Width * height / towidth;
x = 0;
y = (originalImage.Height - oh) / 2;
}
break;
default:
break;
}
//新建一个bmp图片
System.Drawing.Image bitmap = new System.Drawing.Bitmap(towidth, toheight);
//新建一个画板
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);
//设置高质量插值法
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
//设置高质量,低速度呈现平滑程度
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//清空画布并以透明背景色填充
g.Clear(System.Drawing.Color.Transparent);
//在指定位置并且按指定大小绘制原图片的指定部分
g.DrawImage(originalImage, new System.Drawing.Rectangle(0, 0, towidth, toheight),
new System.Drawing.Rectangle(x, y, ow, oh),
System.Drawing.GraphicsUnit.Pixel);
try
{
//以jpg格式保存缩略图
bitmap.Save(thumbnailPath, System.Drawing.Imaging.ImageFormat.Jpeg);
}
catch (System.Exception e)
{
throw e;
}
finally
{
originalImage.Dispose();
bitmap.Dispose();
g.Dispose();
}
}
void Pbox_RandomMouseLeave(object sender, EventArgs e)
{
formGraphics.Clear(this.BackColor);
}
/// <summary>
/// 指定长宽裁剪
/// 按模版比例最大范围的裁剪图片并缩放至模版尺寸
/// </summary>
/// <param name="postedFile">原图HttpPostedFile对象</param>
/// <param name="fileSaveUrl">保存路径</param>
/// <param name="maxWidth">最大宽(单位:px)</param>
/// <param name="maxHeight">最大高(单位:px)</param>
/// <param name="quality">质量（范围0-100）</param>
public static void CutForCustom(System.Web.HttpPostedFile postedFile, string fileSaveUrl, int maxWidth, int maxHeight, int quality)
{
//从文件获取原始图片，并使用流中嵌入的颜色管理信息
System.Drawing.Image initImage = System.Drawing.Image.FromStream(postedFile.InputStream, true);
//原图宽高均小于模版，不作处理，直接保存
if (initImage.Width <= maxWidth && initImage.Height <= maxHeight)
{
initImage.Save(fileSaveUrl, System.Drawing.Imaging.ImageFormat.Jpeg);
}
else
{
//模版的宽高比例
double templateRate = (double)maxWidth / maxHeight;
//原图片的宽高比例
double initRate = (double)initImage.Width / initImage.Height;
//原图与模版比例相等，直接缩放
if (templateRate == initRate)
{
//按模版大小生成最终图片
System.Drawing.Image templateImage = new System.Drawing.Bitmap(maxWidth, maxHeight);
System.Drawing.Graphics templateG = System.Drawing.Graphics.FromImage(templateImage);
templateG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
templateG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
templateG.Clear(Color.White);
templateG.DrawImage(initImage, new System.Drawing.Rectangle(0, 0, maxWidth, maxHeight), new System.Drawing.Rectangle(0, 0, initImage.Width, initImage.Height), System.Drawing.GraphicsUnit.Pixel);
templateImage.Save(fileSaveUrl, System.Drawing.Imaging.ImageFormat.Jpeg);
}
//原图与模版比例不等，裁剪后缩放
else
{
//裁剪对象
System.Drawing.Image pickedImage = null;
System.Drawing.Graphics pickedG = null;
//定位
Rectangle fromR = new Rectangle(0, 0, 0, 0); //原图裁剪定位
Rectangle toR = new Rectangle(0, 0, 0, 0); //目标定位
//宽为标准进行裁剪
if (templateRate > initRate)
{
//裁剪对象实例化
pickedImage = new System.Drawing.Bitmap(initImage.Width, (int)Math.Floor(initImage.Width / templateRate));
pickedG = System.Drawing.Graphics.FromImage(pickedImage);
//裁剪源定位
fromR.X = 0;
fromR.Y = (int)Math.Floor((initImage.Height - initImage.Width / templateRate) / 2);
fromR.Width = initImage.Width;
fromR.Height = (int)Math.Floor(initImage.Width / templateRate);
//裁剪目标定位
toR.X = 0;
toR.Y = 0;
toR.Width = initImage.Width;
toR.Height = (int)Math.Floor(initImage.Width / templateRate);
}
//高为标准进行裁剪
else
{
pickedImage = new System.Drawing.Bitmap((int)Math.Floor(initImage.Height * templateRate), initImage.Height);
pickedG = System.Drawing.Graphics.FromImage(pickedImage);
fromR.X = (int)Math.Floor((initImage.Width - initImage.Height * templateRate) / 2);
fromR.Y = 0;
fromR.Width = (int)Math.Floor(initImage.Height * templateRate);
fromR.Height = initImage.Height;
toR.X = 0;
toR.Y = 0;
toR.Width = (int)Math.Floor(initImage.Height * templateRate);
toR.Height = initImage.Height;
}
//设置质量
pickedG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
pickedG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//裁剪
pickedG.DrawImage(initImage, toR, fromR, System.Drawing.GraphicsUnit.Pixel);
//按模版大小生成最终图片
System.Drawing.Image templateImage = new System.Drawing.Bitmap(maxWidth, maxHeight);
System.Drawing.Graphics templateG = System.Drawing.Graphics.FromImage(templateImage);
templateG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
templateG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
templateG.Clear(Color.White);
templateG.DrawImage(pickedImage, new System.Drawing.Rectangle(0, 0, maxWidth, maxHeight), new System.Drawing.Rectangle(0, 0, pickedImage.Width, pickedImage.Height), System.Drawing.GraphicsUnit.Pixel);
//关键质量控制
//获取系统编码类型数组,包含了jpeg,bmp,png,gif,tiff
ImageCodecInfo[] icis = ImageCodecInfo.GetImageEncoders();
ImageCodecInfo ici = null;
foreach (ImageCodecInfo i in icis)
{
if (i.MimeType == "image/jpeg" || i.MimeType == "image/bmp" || i.MimeType == "image/png" || i.MimeType == "image/gif")
{
ici = i;
}
}
EncoderParameters ep = new EncoderParameters(1);
ep.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)quality);
//保存缩略图
templateImage.Save(fileSaveUrl, ici, ep);
//templateImage.Save(fileSaveUrl, System.Drawing.Imaging.ImageFormat.Jpeg);
//释放资源
templateG.Dispose();
templateImage.Dispose();
pickedG.Dispose();
pickedImage.Dispose();
}
}
//释放资源
initImage.Dispose();
}
/// <summary>
/// Paint.
/// </summary>
/// <param name="g"></param>
/// <param name="w"></param>
/// <param name="h"></param>
protected void paintGraph(System.Drawing.Graphics g, int w, int h)
{
short ux = 0;
short lx = 0;
short uy = 0;
short ly = 0;
bool foundFirst = false;
List <string> legend = new List <string>();
List <Color> colors = new List <Color>();
for (int i = 0; i < Lines.Count; i++)
{
if (Lines[i] == null)
{
continue;
}
if (Lines[i].Show == false)
{
continue;
}
if (!foundFirst)
{
ux = Lines[i].MaxX;
lx = Lines[i].MinX;
uy = Lines[i].MaxY;
ly = Lines[i].MinY;
foundFirst = true;
}
legend.Add(Lines[i].Name);
colors.Add(Lines[i].LineColor);
ux = ux > Lines[i].MaxX ? ux : Lines[i].MaxX;
lx = lx < Lines[i].MinX ? lx : Lines[i].MinX;
uy = uy > Lines[i].MaxY ? uy : Lines[i].MaxY;
ly = ly < Lines[i].MinY ? ly : Lines[i].MinY;
}
g.Clear(BackColor);//???
Rectangle drawRectangle = new Rectangle(0, 0, w, h);
if (ShowLegend)
{
int legendHeight = 5 + (int)g.MeasureString("AjtW", Font).Height;
if (h - legendHeight > 10)
{
drawRectangle = new Rectangle(0, 0, w, h - legendHeight);
Rectangle legendRectangle = new Rectangle(0, h - legendHeight + 2, w, legendHeight - 2);
drawLegend(g, legendRectangle, legend, colors);
}
}
if (ShowAxis)
{
Font font = new Font("Arial", 9, FontStyle.Regular);
LinearGradientBrush lgBrush = new LinearGradientBrush(drawRectangle, Color.Gray, Color.Gray, 1.2f, true);
Pen darkPen = new Pen(Color.Gray, 2);
Pen lightPen = new Pen(Color.Gray, 1);
Pen axisPen = new Pen(Color.Black, 3);
Pen buildPen = new Pen(lgBrush, 1);
// 画纵线以及X轴坐标
int leftX = 60; //最左边的纵线距离图像左边的距离
g.DrawLine(axisPen, leftX, 50, leftX, drawRectangle.Height - 32); //Y轴
g.DrawString("0", font, Brushes.Black, leftX, drawRectangle.Height - 24);
for (int i = 1; i <= 640 / 16; i++)
{
leftX += 16;
if (i % 4 == 0)
{
g.DrawLine(darkPen, leftX, 50, leftX, drawRectangle.Height - 32);
g.DrawString((i * 16).ToString(), font, Brushes.Black, leftX - 10, drawRectangle.Height - 24);
}
else
{
g.DrawLine(lightPen, leftX, 50, leftX, drawRectangle.Height - 32);
}
}
// 画横线及Y轴坐标
int topY = 50; //最上边的横线距离图像顶部的距离
string[] y = new string[] { "35000", "30000", "25000", "20000", "15000", "10000", "5000", " 0", "-5000" };
for (int i = 0; i < 28; i++)
{
g.DrawLine(buildPen, 60, topY, 720, topY);
if (i % 4 == 0)
{
g.DrawLine(darkPen, 60, topY, 720, topY);
g.DrawString(y[i / 4], font, Brushes.Black, 10, topY);
}
else
{
g.DrawLine(lightPen, 60, topY, 720, topY);
}
topY += (drawRectangle.Height - 50 - 30) / 32;
}
g.DrawLine(axisPen, 20, topY, 720, topY); //X轴
//g.DrawString("0", font, Brushes.Black, 10, topY);
topY += (drawRectangle.Height - 50 - 30) / 32;
for (int i = 29; i < 33; i++)
{
if (i % 4 == 0)
{
g.DrawString(y[i / 4], font, Brushes.Black, 10, topY);
g.DrawLine(darkPen, 60, topY, 720, topY);
}
else
{
g.DrawLine(lightPen, 60, topY, 720, topY);
}
topY += (drawRectangle.Height - 50 - 30) / 32;
}
//g.DrawLine(buildPen, 60, topY, 760, topY); //最底下的横线
//g.DrawString(y[8].ToString(), font, Brushes.Black, 10, topY);
}
if (!foundFirst)
{
return;
}
for (int i = 0; i < Lines.Count; i++)
{
if (Lines[i] == null)
{
continue;
}
if (Lines[i].Show == false)
{
continue;
}
Lines[i].Draw(g, drawRectangle, lx, ux, ly, uy);
}
}
private void kola(int n, int [,] A)
{
System.Drawing.Graphics formGraphics = this.CreateGraphics();
System.Drawing.Graphics formGraphics1 = this.CreateGraphics();
formGraphics.Clear(System.Drawing.Color.White);
System.Drawing.Pen myPen;
System.Drawing.Pen myPen1;
myPen = new System.Drawing.Pen(System.Drawing.Color.Black);
myPen1 = new System.Drawing.Pen(System.Drawing.Color.Red);
int[] a = new int[2];
a[0] = 20;
a[1] = 100;
int[] b = new int[2];
b[0] = 70;
b[1] = 50;
int[] c = new int[2];
c[0] = 70;
c[1] = 150;
int [] L = new int[2 * n];
int k = 0;
System.Drawing.Font drawFont = new System.Drawing.Font(
"Arial", 16);
System.Drawing.SolidBrush drawBrush = new
System.Drawing.SolidBrush(System.Drawing.Color.Black);
string txt;
for (int i = 0; i < n; i += 0)
{
if (i == 0 || i == n - 1)
{
formGraphics.DrawEllipse(myPen, a[0], a[1], 30, 30);
++i;
txt = i.ToString();
formGraphics.DrawString(txt, drawFont, drawBrush, a[0], a[1]);
L[k] = a[0];
L[k + 1] = a[1];
k += 2;
}
else
{
formGraphics.DrawEllipse(myPen, b[0], b[1], 30, 30);
++i;
txt = i.ToString();
formGraphics.DrawString(txt, drawFont, drawBrush, b[0], b[1]);
L[k] = b[0];
L[k + 1] = b[1];
k += 2;
formGraphics.DrawEllipse(myPen, c[0], c[1], 30, 30);
++i;
txt = i.ToString();
formGraphics.DrawString(txt, drawFont, drawBrush, c[0], c[1]);
L[k] = c[0];
L[k + 1] = c[1];
k += 2;
a[0] += 100;
b[0] += 100;
c[0] += 100;
}
}
drawFont.Dispose();
drawBrush.Dispose();
for (int i = 0; i < n; i += 2)
{
Parallel.Invoke(
() =>
{
for (int j = 0; j < n; ++j)
{
if (i == j)
{
continue;
}
if (A[i, j] == 1)
{
formGraphics.DrawLine(myPen, L[2 * i] + 15, L[2 * i + 1] + 15, L[2 * j] + 15, L[2 * j + 1] + 15);
}
}
},
() =>
{
for (int j = 0; j < n; ++j)
{
if (i == j)
{
continue;
}
if (A[i, j] == 1)
{
formGraphics1.DrawLine(myPen1, L[2 * (i + 1)] + 15, L[2 * (i + 1) + 1] + 15, L[2 * j] + 15, L[2 * j + 1] + 15);
}
}
}
);
}
myPen.Dispose();
myPen1.Dispose();
formGraphics.Dispose();
formGraphics1.Dispose();
}
/// <summary>
/// 生成图片验证码
/// </summary>
/// <param name="checkCode"></param>
public void CreateCheckCodeImage(string[] checkCode)
{
if (checkCode == null || checkCode.Length <= 0)
{
return;
}
System.Drawing.Bitmap image = new System.Drawing.Bitmap((int)Math.Ceiling((checkCode.Length * 32.5)), 30);
System.Drawing.Graphics g = Graphics.FromImage(image);
try
{
Random random = new Random();
//清空图片背景色
g.Clear(Color.White);
//画图片的背景噪音线
for (int i = 0; i < 20; i++)
{
int x1 = random.Next(image.Width);
int x2 = random.Next(image.Width);
int y1 = random.Next(image.Height);
int y2 = random.Next(image.Height);
g.DrawLine(new Pen(Color.Silver), x1, y1, x2, y2);
}
//定义颜色
Color[] c = { Color.Black, Color.Red, Color.DarkBlue, Color.Green, Color.Orange, Color.Brown, Color.DarkCyan, Color.Purple };
//定义字体
string[] f = { "Verdana", "Microsoft Sans Serif", "Comic Sans MS", "Arial", "宋体" };
for (int k = 0; k <= checkCode.Length - 1; k++)
{
int cindex = random.Next(7);
int findex = random.Next(5);
Font drawFont = new Font(f[findex], 16, (System.Drawing.FontStyle.Bold));
SolidBrush drawBrush = new SolidBrush(c[cindex]);
float x = 5.0F;
float y = 0.0F;
float width = 20.0F;
float height = 25.0F;
int sjx = random.Next(10);
int sjy = random.Next(image.Height - (int)height);
RectangleF drawRect = new RectangleF(x + sjx + (k * 25), y + sjy, width, height);
StringFormat drawFormat = new StringFormat();
drawFormat.Alignment = StringAlignment.Center;
g.DrawString(checkCode[k], drawFont, drawBrush, drawRect, drawFormat);
}
//画图片的前景噪音点
for (int i = 0; i < 100; i++)
{
int x = random.Next(image.Width);
int y = random.Next(image.Height);
image.SetPixel(x, y, Color.FromArgb(random.Next()));
}
//画图片的边框线
g.DrawRectangle(new Pen(Color.Silver), 0, 0, image.Width - 1, image.Height - 1);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
image.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);
//System.Web.HttpContext.Current.Response.ClearContent();
System.Web.HttpContext.Current.Response.ContentType = "image/Gif";
System.Web.HttpContext.Current.Response.BinaryWrite(ms.ToArray());
}
finally
{
g.Dispose();
image.Dispose();
}
}
/// <summary>
/// Takes in an image, scales it maintaining the proper aspect ratio of the image such it fits in the PictureBox's canvas size and loads the image into picture box.
/// Has an optional param to center the image in the picture box if it's smaller then canvas size.
/// </summary>
/// <param name="image">The Image you want to load, see LoadPicture</param>
/// <param name="canvas">The canvas you want the picture to load into</param>
/// <param name="centerImage"></param>
/// <returns></returns>
public static Image ResizeImage(Image image, PictureBox canvas, bool centerImage)
{
if (image == null || canvas == null)
{
return(null);
}
int canvasWidth = canvas.Size.Width;
int canvasHeight = canvas.Size.Height;
int originalWidth = image.Size.Width;
int originalHeight = image.Size.Height;
System.Drawing.Image thumbnail =
new Bitmap(canvasWidth, canvasHeight); // changed parm names
System.Drawing.Graphics graphic =
System.Drawing.Graphics.FromImage(thumbnail);
graphic.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphic.SmoothingMode = SmoothingMode.HighQuality;
graphic.PixelOffsetMode = PixelOffsetMode.HighQuality;
graphic.CompositingQuality = CompositingQuality.HighQuality;
/* ------------------ new code --------------- */
// Figure out the ratio
double ratioX = (double)canvasWidth / (double)originalWidth;
double ratioY = (double)canvasHeight / (double)originalHeight;
double ratio = ratioX < ratioY ? ratioX : ratioY; // use whichever multiplier is smaller
// now we can get the new height and width
int newHeight = Convert.ToInt32(originalHeight * ratio);
int newWidth = Convert.ToInt32(originalWidth * ratio);
// Now calculate the X,Y position of the upper-left corner
// (one of these will always be zero)
int posX = Convert.ToInt32((canvasWidth - (image.Width * ratio)) / 2);
int posY = Convert.ToInt32((canvasHeight - (image.Height * ratio)) / 2);
if (!centerImage)
{
posX = 0;
posY = 0;
}
graphic.Clear(Color.White); // white padding
graphic.DrawImage(image, posX, posY, newWidth, newHeight);
/* ------------- end new code ---------------- */
System.Drawing.Imaging.ImageCodecInfo[] info =
ImageCodecInfo.GetImageEncoders();
EncoderParameters encoderParameters;
encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality,
100L);
Stream s = new System.IO.MemoryStream();
thumbnail.Save(s, info[1],
encoderParameters);
return(Image.FromStream(s));
}
public Form1()
{
InitializeComponent();
g = pictureBox1.CreateGraphics();
g.Clear(Color.White);
}
/// <summary>
/// 指定长宽裁剪
/// 按模版比例最大范围的裁剪图片并缩放至模版尺寸
/// </summary>
/// <remarks>吴剑 2010-11-15</remarks>
/// <param name="postedFile">原图HttpPostedFile对象</param>
/// <param name="fileSaveUrl">保存路径</param>
/// <param name="maxWidth">最大宽(单位:px)</param>
/// <param name="maxHeight">最大高(单位:px)</param>
/// <param name="quality">质量（范围0-100）</param>
public static void CutForCustom(System.Drawing.Image initImage, string fileSaveUrl, int maxWidth, int maxHeight, int quality)
{
//从文件获取原始图片，并使用流中嵌入的颜色管理信息
//System.Drawing.Image initImage = System.Drawing.Image.FromStream(postedFile.InputStream, true);
//原图宽高均小于模版，不作处理，直接保存
if (initImage.Width < maxWidth && initImage.Height < maxHeight)
{
Bitmap _newBitmap = new Bitmap(maxWidth, maxHeight);
// _newBitmap.MakeTransparent(Color.White);
// _newBitmap.(Color.Transparent);
Graphics _graphics = Graphics.FromImage(_newBitmap);
_graphics.Clear(Color.White);
//_graphics.DrawImage(Image.FromFile(@"F:\backImage.bmp"), 0, 0, 240, 320);
// Image sourceImg = initImage;
_graphics.DrawImage(initImage, (maxWidth - initImage.Width) / 2, (maxHeight - initImage.Height) / 2);
// _graphics.DrawString("菜鸟先飞",new Font( FontFamily.GenericMonospace,12), Brushes.Yellow, 0, 0);
//_graphics.Clear(Color.White);
//_graphics.Save();
_newBitmap.Save(fileSaveUrl, ImageFormat.Jpeg);
_graphics.Dispose();
_newBitmap.Dispose();
}
else
{
//模版的宽高比例
double templateRate = (double)maxWidth / maxHeight;
//原图片的宽高比例
double initRate = (double)initImage.Width / initImage.Height;
//原图与模版比例相等，直接缩放
if (templateRate == initRate)
{
//按模版大小生成最终图片
System.Drawing.Image templateImage = new System.Drawing.Bitmap(maxWidth, maxHeight);
System.Drawing.Graphics templateG = System.Drawing.Graphics.FromImage(templateImage);
templateG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
templateG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
// templateG.Clear(Color.White);
templateG.DrawImage(initImage, new System.Drawing.Rectangle(0, 0, maxWidth, maxHeight), new System.Drawing.Rectangle(0, 0, initImage.Width, initImage.Height), System.Drawing.GraphicsUnit.Pixel);
templateImage.Save(fileSaveUrl, System.Drawing.Imaging.ImageFormat.Png);
}
//原图与模版比例不等，裁剪后缩放
else
{
//裁剪对象
System.Drawing.Image pickedImage = null;
System.Drawing.Graphics pickedG = null;
//定位
Rectangle fromR = new Rectangle(0, 0, 0, 0); //原图裁剪定位
Rectangle toR = new Rectangle(0, 0, 0, 0); //目标定位
//宽为标准进行裁剪
if (templateRate > initRate)
{
//裁剪对象实例化
pickedImage = new System.Drawing.Bitmap(initImage.Width, (int)Math.Floor(initImage.Width / templateRate));
pickedG = System.Drawing.Graphics.FromImage(pickedImage);
//裁剪源定位
fromR.X = 0;
fromR.Y = (int)Math.Floor((initImage.Height - initImage.Width / templateRate) / 2);
fromR.Width = initImage.Width;
fromR.Height = (int)Math.Floor(initImage.Width / templateRate);
//裁剪目标定位
toR.X = 0;
toR.Y = 0;
toR.Width = initImage.Width;
toR.Height = (int)Math.Floor(initImage.Width / templateRate);
}
//高为标准进行裁剪
else
{
pickedImage = new System.Drawing.Bitmap((int)Math.Floor(initImage.Height * templateRate), initImage.Height);
pickedG = System.Drawing.Graphics.FromImage(pickedImage);
fromR.X = (int)Math.Floor((initImage.Width - initImage.Height * templateRate) / 2);
fromR.Y = 0;
fromR.Width = (int)Math.Floor(initImage.Height * templateRate);
fromR.Height = initImage.Height;
toR.X = 0;
toR.Y = 0;
toR.Width = (int)Math.Floor(initImage.Height * templateRate);
toR.Height = initImage.Height;
}
//设置质量
pickedG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
pickedG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//裁剪
pickedG.DrawImage(initImage, toR, fromR, System.Drawing.GraphicsUnit.Pixel);
//按模版大小生成最终图片
System.Drawing.Image templateImage = new System.Drawing.Bitmap(maxWidth, maxHeight);
System.Drawing.Graphics templateG = System.Drawing.Graphics.FromImage(templateImage);
templateG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
templateG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
templateG.Clear(Color.White);
templateG.DrawImage(pickedImage, new System.Drawing.Rectangle(0, 0, maxWidth, maxHeight), new System.Drawing.Rectangle(0, 0, pickedImage.Width, pickedImage.Height), System.Drawing.GraphicsUnit.Pixel);
//关键质量控制
//获取系统编码类型数组,包含了jpeg,bmp,png,gif,tiff
ImageCodecInfo[] icis = ImageCodecInfo.GetImageEncoders();
ImageCodecInfo ici = null;
foreach (ImageCodecInfo i in icis)
{
if (i.MimeType == "image/jpeg" || i.MimeType == "image/bmp" || i.MimeType == "image/png" || i.MimeType == "image/gif")
{
ici = i;
}
}
// EncoderParameters ep = new EncoderParameters(1);
// ep.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)quality);
//保存缩略图
// templateImage.Save(fileSaveUrl, ici, ep);
SetPicThumbnail(templateImage, fileSaveUrl, quality);
//templateImage.Save(fileSaveUrl, System.Drawing.Imaging.ImageFormat.Jpeg);
//释放资源
templateG.Dispose();
templateImage.Dispose();
pickedG.Dispose();
pickedImage.Dispose();
}
}
//释放资源
initImage.Dispose();
}
/// asp.net上传图片并生成缩略图
/// </summary>
/// <param name="upImage">HtmlInputFile控件</param>
/// <param name="sSavePath">保存的路径,些为相对服务器路径的下的文件夹</param>
/// <param name="sThumbExtension">缩略图的thumb</param>
/// <param name="intThumbWidth">生成缩略图的宽度</param>
/// <param name="intThumbHeight">生成缩略图的高度</param>
/// <returns>缩略图名称</returns>
public string UpLoadImage(HttpPostedFile myFile, string sSavePath, int intThumbWidth, int intThumbHeight, string ofileName)
{
string sFilename = "";
if (myFile != null && myFile.ContentLength > 0)
{
// HttpPostedFile myFile = upImage.PostedFile;
int nFileLen = myFile.ContentLength;
// if (nFileLen == 0)
// return "没有选择上传图片";
//获取upImage选择文件的扩展名
string extendName = System.IO.Path.GetExtension(myFile.FileName).ToLower();
//判断是否为图片格式
if (extendName != ".jpg" && extendName != ".jpge" && extendName != ".gif" && extendName != ".bmp" && extendName != ".png")
{
return("false");
}
byte[] myData = new Byte[nFileLen];
myFile.InputStream.Read(myData, 0, nFileLen);
//保存文件名
sFilename = ofileName + extendName;// System.IO.Path.GetFileName(myFile.FileName);
string datetime = DateTime.Now.ToString("yyyy-MM");
if (!System.IO.Directory.Exists(sSavePath + datetime + "/"))
{
System.IO.Directory.CreateDirectory(sSavePath + datetime + "/");
}
int file_append = 0;
//检查当前文件夹下是否有同名图片,有则在文件名+1
while (System.IO.File.Exists(sSavePath + datetime + "/" + sFilename))
{
File.Delete(StringPlus.MapPath(sSavePath + datetime + "/" + sFilename));
//file_append++;
//sFilename = System.IO.Path.GetFileNameWithoutExtension(sFilename)
// + file_append.ToString() + extendName;
}
System.IO.FileStream newFile
= new System.IO.FileStream((sSavePath + datetime + "/" + sFilename),
System.IO.FileMode.Create, System.IO.FileAccess.Write);
newFile.Write(myData, 0, myData.Length);
newFile.Close();
//以上为上传原图
try
{
//原图加载
using (System.Drawing.Image sourceImage = System.Drawing.Image.FromFile(sSavePath + datetime + "/" + sFilename))
{
//原图宽度和高度
int width = sourceImage.Width;
int height = sourceImage.Height;
int smallWidth;
int smallHeight;
//获取第一张绘制图的大小,(比较 原图的宽/缩略图的宽 和 原图的高/缩略图的高)
if (((decimal)width) / height <= ((decimal)intThumbWidth) / intThumbHeight)
{
smallWidth = intThumbWidth;
smallHeight = intThumbWidth * height / width;
}
else
{
smallWidth = intThumbHeight * width / height;
smallHeight = intThumbHeight;
}
//判断缩略图在当前文件夹下是否同名称文件存在
file_append = 0;
// sThumbFile =myFile.FileName ;
sFilename = "s_" + sFilename;
if (!System.IO.Directory.Exists(sSavePath + datetime + "/"))
{
System.IO.Directory.CreateDirectory(sSavePath + datetime + "/");
}
while (System.IO.File.Exists(sSavePath + datetime + "/" + sFilename))
{
file_append++;
sFilename = System.IO.Path.GetFileNameWithoutExtension(sFilename) +
file_append.ToString() + extendName;
}
//缩略图保存的绝对路径
string smallImagePath = sSavePath + datetime + "/" + sFilename;
//新建一个图板,以最小等比例压缩大小绘制原图
using (System.Drawing.Image bitmap = new System.Drawing.Bitmap(smallWidth, smallHeight))
{
//绘制中间图
using (System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap))
{
//高清,平滑
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.Clear(Color.Black);
g.DrawImage(
sourceImage,
new System.Drawing.Rectangle(0, 0, smallWidth, smallHeight),
new System.Drawing.Rectangle(0, 0, width, height),
System.Drawing.GraphicsUnit.Pixel
);
}
//新建一个图板,以缩略图大小绘制中间图
using (System.Drawing.Image bitmap1 = new System.Drawing.Bitmap(intThumbWidth, intThumbHeight))
{
//绘制缩略图 http://www.cnblogs.com/sosoft/
using (System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap1))
{
//高清,平滑
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.Clear(Color.Black);
int lwidth = (smallWidth - intThumbWidth) / 2;
int bheight = (smallHeight - intThumbHeight) / 2;
g.DrawImage(bitmap, new Rectangle(0, 0, intThumbWidth, intThumbHeight), lwidth, bheight, intThumbWidth, intThumbHeight, GraphicsUnit.Pixel);
g.Dispose();
bitmap1.Save(smallImagePath, System.Drawing.Imaging.ImageFormat.Jpeg);
}
}
}
}
}
catch
{
//出错则删除
System.IO.File.Delete((sSavePath + sFilename));
return("false");
}
//返回缩略图名称
return(sFilename);
}
return("false");
}
/// <summary>
/// 生成图片缩略文件
/// </summary>
/// <param name="originalImage">图片源文件</param>
/// <param name="width">缩略图宽度</param>
/// <param name="height">缩略图高度</param>
/// <param name="mode">生成缩略图的方式</param>
/// <returns>缩率处理后图片文件</returns>
public static Image MakeThumbnail(Image originalImage, int width, int height, ThumbnailModel mode)
{
int towidth = width;
int toheight = height;
int x = 0;
int y = 0;
int ow = originalImage.Width;
int oh = originalImage.Height;
switch (mode)
{
case ThumbnailModel.HighWidth: //指定高宽缩放（可能变形）
break;
case ThumbnailModel.Width: //指定宽，高按比例
toheight = originalImage.Height * width / originalImage.Width;
break;
case ThumbnailModel.Hight: //指定高，宽按比例
towidth = originalImage.Width * height / originalImage.Height;
break;
case ThumbnailModel.Default: //指定高，宽按比例
if (ow <= towidth && oh <= toheight)
{
x = -(towidth - ow) / 2;
y = -(toheight - oh) / 2;
ow = towidth;
oh = toheight;
}
else
{
if (ow > oh) //宽大于高
{
x = 0;
y = -(ow - oh) / 2;
oh = ow;
}
else //高大于宽
{
y = 0;
x = -(oh - ow) / 2;
ow = oh;
}
}
break;
case ThumbnailModel.Auto:
if (originalImage.Width / originalImage.Height >= width / height)
{
if (originalImage.Width > width)
{
towidth = width;
toheight = (originalImage.Height * width) / originalImage.Width;
}
else
{
towidth = originalImage.Width;
toheight = originalImage.Height;
}
}
else
{
if (originalImage.Height > height)
{
toheight = height;
towidth = (originalImage.Width * height) / originalImage.Height;
}
else
{
towidth = originalImage.Width;
toheight = originalImage.Height;
}
}
break;
case ThumbnailModel.Cut: //指定高宽裁减（不变形）
if ((double)originalImage.Width / (double)originalImage.Height > (double)towidth / (double)toheight)
{
oh = originalImage.Height;
ow = originalImage.Height * towidth / toheight;
y = 0;
x = (originalImage.Width - ow) / 2;
}
else
{
ow = originalImage.Width;
oh = originalImage.Width * height / towidth;
x = 0;
y = (originalImage.Height - oh) / 2;
}
break;
default:
break;
}
//新建一个bmp图片
System.Drawing.Image bitmap = new System.Drawing.Bitmap(towidth, toheight);
//新建一个画板
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);
//设置高质量插值法
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
//设置高质量,低速度呈现平滑程度
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//清空画布并以透明背景色填充
g.Clear(System.Drawing.Color.White);
//在指定位置并且按指定大小绘制原图片的指定部分
g.DrawImage(originalImage, new System.Drawing.Rectangle(0, 0, towidth, toheight),
new System.Drawing.Rectangle(x, y, ow, oh),
System.Drawing.GraphicsUnit.Pixel);
return(bitmap);
}
public void GetCroppedImage(string inPath, string outPath, int maxWidth, int maxHeight)
{
using (var imgOriginal = System.Drawing.Image.FromFile(inPath))
{
ImageFormat tFormat = imgOriginal.RawFormat;
//get original width and height of the incoming image
var originalWidth = imgOriginal.Width; // 1000
var originalHeight = imgOriginal.Height; // 800
//裁剪对象
System.Drawing.Image pickedImage = null;
System.Drawing.Graphics pickedG = null;
//定位
Rectangle fromR = new Rectangle(0, 0, 0, 0); //原图裁剪定位
Rectangle toR = new Rectangle(0, 0, 0, 0); //目标定位
//模版的宽高比例
double templateRate = (double)maxWidth / maxHeight;
//原图片的宽高比例
double initRate = (double)imgOriginal.Width / imgOriginal.Height;
//宽为标准进行裁剪
if (templateRate > initRate)
{
//裁剪对象实例化
pickedImage = new System.Drawing.Bitmap(imgOriginal.Width, (int)System.Math.Floor(imgOriginal.Width / templateRate));
pickedG = System.Drawing.Graphics.FromImage(pickedImage);
//裁剪源定位
fromR.X = 0;
fromR.Y = (int)System.Math.Floor((imgOriginal.Height - imgOriginal.Width / templateRate) / 2);
fromR.Width = imgOriginal.Width;
fromR.Height = (int)System.Math.Floor(imgOriginal.Width / templateRate);
//裁剪目标定位
toR.X = 0;
toR.Y = 0;
toR.Width = imgOriginal.Width;
toR.Height = (int)System.Math.Floor(imgOriginal.Width / templateRate);
}
//高为标准进行裁剪
else
{
pickedImage = new System.Drawing.Bitmap((int)System.Math.Floor(imgOriginal.Height * templateRate), imgOriginal.Height);
pickedG = System.Drawing.Graphics.FromImage(pickedImage);
fromR.X = (int)System.Math.Floor((imgOriginal.Width - imgOriginal.Height * templateRate) / 2);
fromR.Y = 0;
fromR.Width = (int)System.Math.Floor(imgOriginal.Height * templateRate);
fromR.Height = imgOriginal.Height;
toR.X = 0;
toR.Y = 0;
toR.Width = (int)System.Math.Floor(imgOriginal.Height * templateRate);
toR.Height = imgOriginal.Height;
}
//设置质量
pickedG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
pickedG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//裁剪
pickedG.DrawImage(imgOriginal, toR, fromR, System.Drawing.GraphicsUnit.Pixel);
//按模版大小生成最终图片
using (var resizedBmp = new System.Drawing.Bitmap(maxWidth, maxHeight))
{
using (var graphics = Graphics.FromImage((Image)resizedBmp))
{
graphics.InterpolationMode = InterpolationMode.Default;
graphics.DrawImage(imgOriginal, 0, 0, maxWidth, maxHeight);
}
using (System.Drawing.Graphics templateG = System.Drawing.Graphics.FromImage(resizedBmp))
{
templateG.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
templateG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
templateG.Clear(Color.White);
var rectangle = new Rectangle(0, 0, maxWidth, maxHeight);
//templateG.DrawImage(pickedImage, new System.Drawing.Rectangle(0, 0, maxWidth, maxHeight), new System.Drawing.Rectangle(0, 0, pickedImage.Width, pickedImage.Height), System.Drawing.GraphicsUnit.Pixel);
//crop
using (var croppedBmp = resizedBmp.Clone(rectangle, resizedBmp.PixelFormat))
{
//get the codec needed
var imgCodec = ImageCodecInfo.GetImageEncoders().First(c => c.FormatID == tFormat.Guid);
//make a paramater to adjust quality
var codecParams = new EncoderParameters(1);
//reduce to quality of 80 (from range of 0 (max compression) to 100 (no compression))
codecParams.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)this.Quality);
EncoderParameters ep = new EncoderParameters();
long[] qy = new long[1];
qy[0] = this.Quality;//设置压缩的比例1-100
EncoderParameter eParam = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, qy);
ep.Param[0] = eParam;
//save to the memorystream - convert it to an array and send it back as a byte[]
croppedBmp.Save(outPath, imgCodec, ep);
}
}
}
}
}