C# Drawing.Graphics类代码示例

        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();
        }

        public void DrawPaperSheet(Graphics graphic)
        {
            if (SingleOffset.Paper == null) { return; }
              var comp1 = (int)(SingleOffset.Paper.SizeH / printFormatWidth.Value) * (int)(SingleOffset.Paper.SizeW / printFormatHeight.Value);
              var comp2 = (int)(SingleOffset.Paper.SizeH / printFormatHeight.Value) * (int)(SingleOffset.Paper.SizeW / printFormatWidth.Value);

              if (comp1 > comp2)
              {
            var widthUse = (int)(SingleOffset.Paper.SizeW / printFormatHeight.Value);
            var heightUse = (int)(SingleOffset.Paper.SizeH / printFormatWidth.Value);
            var flipped = widthUse * printFormatHeight.Value > SingleOffset.Paper.SizeW || heightUse * printFormatWidth.Value > SingleOffset.Paper.SizeH;
            Drawing.Draw(graphic, SingleOffset.Paper.SizeW, SingleOffset.Paper.SizeH, (int)printFormatHeight.Value, (int)printFormatWidth.Value, heightUse, widthUse, false, false);
            usePerSheetLabel.Text = comp1 == usePerSheet.Value ? "" : string.Format("Anzahl Nutzen passt nicht.{0}Empfohlen wären {1} Nutzen.", Environment.NewLine, comp1);
            usePerSheetLabel.Update();
              }
              else
              {
            var heightUse = (int)(SingleOffset.Paper.SizeH / printFormatHeight.Value);
            var widthUse = (int)(SingleOffset.Paper.SizeW / printFormatWidth.Value);
            var flipped = widthUse * printFormatWidth.Value > SingleOffset.Paper.SizeW || heightUse * printFormatHeight.Value > SingleOffset.Paper.SizeH;
            Drawing.Draw(graphic, SingleOffset.Paper.SizeW, SingleOffset.Paper.SizeH, (int)printFormatWidth.Value, (int)printFormatHeight.Value, widthUse, heightUse, false, false);
            usePerSheetLabel.Text = comp2 == usePerSheet.Value ? "" : string.Format("Anzahl Nutzen passt nicht.{0}Empfohlen wären {1} Nutzen.", Environment.NewLine, comp2);
            usePerSheetLabel.Update();
              }
        }

                 protected internal override void Paint(Graphics gr)
                 {           
                   var hf = CandleView.BAR_WIDTH / 2;

                   if (m_View.Kind== ViewKind.SideBySide)
                   {
                       var hh = Host.Height / Host.Zoom;

                       gr.FillRectangle(Brushes.Green, this.Left, hh - m_Lay_BuyHeight, hf, m_Lay_BuyHeight);
                       gr.FillRectangle(Brushes.Red, this.Left+hf, hh - m_Lay_SellHeight, hf, m_Lay_SellHeight);
                   }
                   else if (m_View.Kind== ViewKind.Stacked)
                   {
                      var hh = Host.Height / Host.Zoom;

                      gr.FillRectangle(Brushes.Green, this.Left, hh - m_Lay_BuyHeight, CandleView.BAR_WIDTH, m_Lay_BuyHeight);
                      gr.FillRectangle(Brushes.Red, this.Left, hh - m_Lay_BuyHeight-m_Lay_SellHeight, CandleView.BAR_WIDTH, m_Lay_SellHeight);
                   }
                   else//centered
                   {
                      var mid = (Host.Height / 2) / Host.Zoom;

                      gr.FillRectangle(Brushes.Green, this.Left, mid - m_Lay_BuyHeight, CandleView.BAR_WIDTH, m_Lay_BuyHeight);
                      gr.FillRectangle(Brushes.Red, this.Left, mid, CandleView.BAR_WIDTH, m_Lay_SellHeight);
                   }
                 }

        public void PaintJunk(Graphics g)
        {
            g.FillRectangle(Brushes.Transparent, 0, 0, 1000, 1000);

            using (Font font = new Font("Courier New", 20, FontStyle.Bold))
            {
                if (bounceCounter == -1) return;
                const string str = "DEVELOPER BUILD";
                float x = 0;
                int timefactor = bounceCounter;
                for (int i = 0; i < str.Length; i++)
                {
                    string slice = str.Substring(i, 1);
                    g.PageUnit = GraphicsUnit.Pixel;
                    x += g.MeasureString(slice, font).Width - 1;

                    int offset = -i * 3 + timefactor*3;
                    int yofs = 0;
                    if (offset < 0)
                    { continue; }
                    else
                        if (offset < DigitTable.Length)
                            yofs = DigitTable[offset];
                    g.DrawString(slice, font, Brushes.Black, 5 + x, 15 - yofs);
                }
            }
        }

 public override void DoPaint(Graphics g)
 {
     using (Brush b = new SolidBrush(ZenParams.WindowColor))
     {
         g.FillRectangle(b, 0, 0, Width, Height);
     }
 }

 public override void DrawSelf(Graphics grfx)
 {
     grfx.Transform = this.TransformMatrix.GetMatrix();
     grfx.FillRectangle(new SolidBrush(Color.FromArgb(Transparency, FillColor)), Rectangle);
     grfx.DrawRectangle(new Pen(LineColor, LineWidth), Rectangle.X, Rectangle.Y, Rectangle.Width, Rectangle.Height);
     grfx.Transform.Reset();
 }

        public override void DrawAppointment(Graphics g, Rectangle rect, Appointment appointment, bool isSelected, Rectangle gripRect, bool enableShadows, bool useroundedCorners)
        {
            if (appointment == null)
                throw new ArgumentNullException("appointment");

            if (g == null)
                throw new ArgumentNullException("g");

            if (rect.Width != 0 && rect.Height != 0)
                using (StringFormat format = new StringFormat())
                {
                    format.Alignment = StringAlignment.Near;
                    format.LineAlignment = StringAlignment.Near;

                    if ((appointment.Locked) && isSelected)
                    {
                        // Draw back
                        using (Brush m_Brush = new System.Drawing.Drawing2D.HatchBrush(System.Drawing.Drawing2D.HatchStyle.Wave, Color.LightGray, appointment.Color))
                            g.FillRectangle(m_Brush, rect);
                    }
                    else
                    {
                        // Draw back
                        using (SolidBrush m_Brush = new SolidBrush(appointment.Color))
                            g.FillRectangle(m_Brush, rect);
                    }

                    if (isSelected)
                    {
                        using (Pen m_Pen = new Pen(appointment.BorderColor, 4))
                            g.DrawRectangle(m_Pen, rect);

                        Rectangle m_BorderRectangle = rect;

                        m_BorderRectangle.Inflate(2, 2);

                        using (Pen m_Pen = new Pen(SystemColors.WindowFrame, 1))
                            g.DrawRectangle(m_Pen, m_BorderRectangle);

                        m_BorderRectangle.Inflate(-4, -4);

                        using (Pen m_Pen = new Pen(SystemColors.WindowFrame, 1))
                            g.DrawRectangle(m_Pen, m_BorderRectangle);
                    }
                    else
                    {
                        // Draw gripper
                        gripRect.Width += 1;

                        using (SolidBrush m_Brush = new SolidBrush(appointment.BorderColor))
                            g.FillRectangle(m_Brush, gripRect);

                        using (Pen m_Pen = new Pen(SystemColors.WindowFrame, 1))
                            g.DrawRectangle(m_Pen, rect);
                    }

                    rect.X += gripRect.Width;
                    g.DrawString(appointment.Subject, this.BaseFont, SystemBrushes.WindowText, rect, format);
                }
        }

        public override SizeF Measure(Graphics graphics)
		{
			if (this.Image != null)
			{
				SizeF size = new Size(GraphConstants.MinimumItemWidth, GraphConstants.MinimumItemHeight);

				if (this.Width.HasValue)
					size.Width = Math.Max(size.Width, this.Width.Value);
				else
					size.Width = Math.Max(size.Width, this.Image.Width);

				if (this.Height.HasValue)
					size.Height = Math.Max(size.Height, this.Height.Value);
				else
					size.Height = Math.Max(size.Height, this.Image.Height);
				
				return size;
			} else
			{
				var size = new SizeF(GraphConstants.MinimumItemWidth, GraphConstants.MinimumItemHeight);
				if (this.Width.HasValue)
					size.Width = Math.Max(size.Width, this.Width.Value);

				if (this.Height.HasValue)
					size.Height = Math.Max(size.Height, this.Height.Value);
				
				return size;
			}
		}

        public virtual Size GetCharacterSize( Graphics g, Font font, CharacterCasing casing )
        {
            const int MeasureCharCount = 10;

             Size charSize = new Size( 0, 0 );

             for ( char c = '0'; c <= '9'; ++c )
             {
            Size newSize = TextRenderer.MeasureText( g, new string( c, MeasureCharCount ), font, new Size( 0, 0 ),
               _textFormatFlags );

            newSize.Width = (int)Math.Ceiling( (double)newSize.Width / (double)MeasureCharCount );

            if ( newSize.Width > charSize.Width )
            {
               charSize.Width = newSize.Width;
            }

            if ( newSize.Height > charSize.Height )
            {
               charSize.Height = newSize.Height;
            }
             }

             return charSize;
        }

		static protected void DrawBrick (Graphics graphics, Brush b1, Brush b2, Brush b3)
		{
			if (graphics == null) return;
			graphics.FillPolygon (b1, brickPoints1);
			graphics.FillPolygon (b2, brickPoints2);
			graphics.FillPolygon (b3, brickPoints3);
		}

		private static SizeF CalcReciprocals(Graphics g)	
		{
			switch(g.PageUnit)	
			{	
				case GraphicsUnit.World:	
				case GraphicsUnit.Pixel:
					
					return new SizeF(1f,1f);
					
				case GraphicsUnit.Inch:
					
					return new SizeF(1f/g.DpiX,1f/g.DpiY);
					
				case GraphicsUnit.Millimeter:
					
					return new SizeF(25.4f/g.DpiX,25.4f/g.DpiY);
					
				case GraphicsUnit.Point:
					
					return new SizeF(72f/g.DpiX,72f/g.DpiY);
					
				case GraphicsUnit.Display:
					
					return new SizeF(75f/g.DpiX,75f/g.DpiY);
					
				case GraphicsUnit.Document:
					
					return new SizeF(300f/g.DpiX,300f/g.DpiY);
					
			}
			return new SizeF(10,10);//never gets here...
		}

 public VisibleSurface(Graphics graphics, int wdth, int hght)
     : base(wdth, hght)
 {
     base.DC = graphics;
     base.Buffer = new Backbuffer(this);
     this.RedrawDirtyRectangleOnly = true;
 }

 /// <summary>
 /// Paints the wrapped IOGraph onto the specified viewport. Does nothing if no 
 /// IOGraph has been provided.
 /// </summary>
 public void Paint(Graphics g, Rectangle viewportArea, float zoomFactor)
 {
     if(null != _graph) {
         _layoutManager.Layout(_graph, viewportArea.Size);
         _graphPainter.PaintNetwork(_graph, g, viewportArea, zoomFactor);
     }
 }

        void PaintVoxel(Graphics graphics, int i, int j)
        {
            Brush brushVoxel_True = new SolidBrush(Color.FromArgb(181, 230, 29));
            Brush brushVoxel_False = new SolidBrush(Color.FromArgb(240, 240, 240));

            graphics.FillRectangle(VoxelsData[i, j] ? brushVoxel_True : brushVoxel_False, VoxelSize * i + 1, VoxelSize * j + 1, VoxelSize - 1, VoxelSize - 1);
        }

		internal override void Draw(Graphics g)
		{
			IsInvalidated = false;

			Rectangle r = BaseElement.GetUnsignedRectangle(new Rectangle(location, size));

			Point[] points = new Point[5];
			points[0] = new Point(r.X + 0, r.Y + 0);
			points[1] = new Point(r.X + 0, r.Y + r.Height);
			points[2] = new Point(r.X + r.Width, r.Y + r.Height);

			//Fold
			points[3] = new Point(r.X + r.Width, r.Y + foldSize.Height);
			points[4] = new Point(r.X + r.Width - foldSize.Width, r.Y + 0);

			//foreach(Point p in points) p.Offset(location.X, location.Y);

			g.FillPolygon(GetBrush(r), points, FillMode.Alternate);
			g.DrawPolygon(new Pen(borderColor, borderWidth), points);

			g.DrawLine(new Pen(borderColor, borderWidth),
			           new Point(r.X + r.Width - foldSize.Width, r.Y + foldSize.Height),
			           new Point(r.X + r.Width, r.Y + foldSize.Height));

			g.DrawLine(new Pen(borderColor, borderWidth),
			           new Point(r.X + r.Width - foldSize.Width, r.Y + 0),
			           new Point(r.X + r.Width - foldSize.Width, r.Y + 0 + foldSize.Height));
		}