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CPF/CPF.Windows/GDIPlus/GDIPlusDrawingContext.cs

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允许net5以上可选gdi
2024-06-07 09:58:49 +08:00
//#if Net4
初始化
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using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using System.Linq;
using System.IO;
using System.Drawing.Imaging;
using CPF.Drawing;
namespace CPF.GDIPlus
{
public class GDIPlusDrawingContext : DrawingContext
{
Graphics g;
public Graphics Graphics
{
get { return g; }
}
IntPtr hdc = IntPtr.Zero;
StringFormat GenericTypographic = (StringFormat)StringFormat.GenericTypographic.Clone();
StringFormat CenterFormat = new StringFormat() { Alignment = StringAlignment.Center, FormatFlags = StringFormatFlags.NoClip | StringFormatFlags.FitBlackBox | StringFormatFlags.LineLimit };
StringFormat RightFormat = new StringFormat { Alignment = StringAlignment.Far, FormatFlags = StringFormatFlags.NoClip | StringFormatFlags.FitBlackBox | StringFormatFlags.LineLimit };
Pen pen;
public GDIPlusDrawingContext(Graphics g)
{
this.g = g;
//g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
GenericTypographic.Trimming = StringTrimming.Character;
CenterFormat.Trimming = StringTrimming.Character;
RightFormat.Trimming = StringTrimming.Character;
g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.Half;
}
public GDIPlusDrawingContext(IntPtr hdc, Rect rect)
{
this.hdc = hdc;
g = Graphics.FromHdc(hdc);
g.SetClip(new RectangleF((float)rect.X, (float)rect.Y, (float)rect.Width, (float)rect.Height));
//g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
GenericTypographic.Trimming = StringTrimming.Character;
CenterFormat.Trimming = StringTrimming.Character;
RightFormat.Trimming = StringTrimming.Character;
g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.Half;
}
public GDIPlusDrawingContext(IntPtr hwnd)
{
this.g = Graphics.FromHwnd(hwnd);
GenericTypographic.Trimming = StringTrimming.Character;
CenterFormat.Trimming = StringTrimming.Character;
RightFormat.Trimming = StringTrimming.Character;
g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.Half;
}
public override AntialiasMode AntialiasMode
{
get
{
if (g.SmoothingMode == System.Drawing.Drawing2D.SmoothingMode.Default || g.SmoothingMode == System.Drawing.Drawing2D.SmoothingMode.None)
{
return AntialiasMode.Default;
}
return AntialiasMode.AntiAlias;
}
set
{
if (value == AntialiasMode.Default)
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.Default;
if (drawingFactory.ClearType)
{
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
}
else
{
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SystemDefault;
}
}
else
{
if (drawingFactory.ClearType)
{
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
}
else
{
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
}
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
}
}
}
private void SetPen(Stroke stroke, System.Drawing.Brush strokeBrush)
{
if (pen == null)
{
pen = new Pen(strokeBrush);
}
pen.Width = stroke.Width;
pen.DashStyle = stroke.DashStyle.ToGdiDashStyle();
if (stroke.DashStyle != DashStyles.Solid)
{
pen.DashOffset = stroke.DashOffset;
pen.DashPattern = stroke.GetDashPattern();
pen.DashStyle = System.Drawing.Drawing2D.DashStyle.Custom;
}
pen.StartCap = stroke.StrokeCap.ToLineCap();
pen.EndCap = pen.StartCap;
pen.Brush = strokeBrush;
}
private Pen CreatePen(Stroke stroke, System.Drawing.Brush strokeBrush)
{
var pen = new Pen(strokeBrush);
pen.Width = stroke.Width;
pen.DashStyle = stroke.DashStyle.ToGdiDashStyle();
if (stroke.DashStyle != DashStyles.Solid)
{
pen.DashOffset = stroke.DashOffset;
pen.DashPattern = stroke.GetDashPattern();
pen.DashStyle = System.Drawing.Drawing2D.DashStyle.Custom;
}
pen.StartCap = stroke.StrokeCap.ToLineCap();
pen.EndCap = pen.StartCap;
pen.Brush = strokeBrush;
return pen;
}
public override void DrawLine(in Stroke stroke, CPF.Drawing.Brush strokeBrush, in CPF.Drawing.Point point1, in CPF.Drawing.Point point2)
{
InitializeBrush(strokeBrush);
SetPen(stroke, (System.Drawing.Brush)strokeBrush.AdapterBrush);
g.DrawLine(pen, point1.ToGdiPoint(), point2.ToGdiPoint());
}
public override void DrawRectangle(CPF.Drawing.Brush strokeBrush, in CPF.Drawing.Stroke stroke, in CPF.Drawing.Rect rect)
{
InitializeBrush(strokeBrush);
SetPen(stroke, (System.Drawing.Brush)strokeBrush.AdapterBrush);
g.DrawRectangle(pen, (float)rect.X, (float)rect.Y, (float)rect.Width, (float)rect.Height);
}
public override void FillRectangle(CPF.Drawing.Brush fillBrush, Rect rect)
{
InitializeBrush(fillBrush);
g.FillRectangle((System.Drawing.Brush)fillBrush.AdapterBrush, rect.X, (float)rect.Y, (float)rect.Width, (float)rect.Height);
}
//public override void DrawRoundedRectangle(Brush strokeBrush, Stroke stroke, Brush fillBrush, Rect rectangle, double radiusX, double radiusY)
//{
// throw new NotImplementedException();
//}
public override void DrawEllipse(CPF.Drawing.Brush strokeBrush, in Stroke stroke, in CPF.Drawing.Point center, in float radiusX, in float radiusY)
{
InitializeBrush(strokeBrush);
SetPen(stroke, (System.Drawing.Brush)strokeBrush.AdapterBrush);
var x = Math.Abs(radiusX);
var y = Math.Abs(radiusY);
g.DrawEllipse(pen, center.X - x, center.Y - y, x * 2, y * 2);
}
public override void FillEllipse(CPF.Drawing.Brush fillBrush, in CPF.Drawing.Point center, in float radiusX, in float radiusY)
{
InitializeBrush(fillBrush);
var x = Math.Abs(radiusX);
var y = Math.Abs(radiusY);
g.FillEllipse((System.Drawing.Brush)fillBrush.AdapterBrush, center.X - x, center.Y - y, x * 2, y * 2);
}
public override void FillGeometry(CPF.Drawing.Brush fillBrush, Geometry geometry)
{
InitializeBrush(fillBrush);
g.FillRegion((System.Drawing.Brush)fillBrush.AdapterBrush, (geometry.GeometryImpl as GDIPlusPathGeometry).Region);
}
public override void DrawImage(CPF.Drawing.Image image, in Rect destRect, in Rect srcRect, in float opacity = 1)
{
GDIPlusImage i = image.ImageImpl as GDIPlusImage;
if (i != null)
{
if (opacity != 1)
{
ImageAttributes imageAttributes = new ImageAttributes();
ChangeOpacity(opacity, imageAttributes);
g.DrawImage(i.Image,
new Rectangle((int)destRect.X, (int)destRect.Y, (int)destRect.Width, (int)destRect.Height),
srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height, GraphicsUnit.Pixel, imageAttributes);
}
else
{
g.DrawImage(i.Image,
new RectangleF(destRect.X, destRect.Y, destRect.Width, destRect.Height),
new RectangleF(srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height), GraphicsUnit.Pixel);
}
}
}
public static void ChangeOpacity(float opacity, ImageAttributes imageAttributes)
{
float[][] nArray ={
new float[] {1, 0, 0, 0, 0},
new float[] {0, 1, 0, 0, 0},
new float[] {0, 0, 1, 0, 0},
new float[] {0, 0, 0, opacity, 0},
new float[] {0, 0, 0, 0, 1}
};
ColorMatrix matrix = new ColorMatrix(nArray);
imageAttributes.SetColorMatrix(matrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
}
public override void DrawString(in CPF.Drawing.Point location, CPF.Drawing.Brush fillBrush, string text, in CPF.Drawing.Font font, in TextAlignment textAlignment = TextAlignment.Left, in float maxWidth = float.MaxValue, in TextDecoration decoration = default,
in float maxHeight = float.MaxValue,
in TextTrimming textTrimming = TextTrimming.None,
in Stroke stroke = default,
CPF.Drawing.Brush strokeBrush = null)
{
bool ellipsis = false;
DrawString(out ellipsis, location, fillBrush, text, font, textAlignment, maxWidth, decoration, maxHeight, textTrimming, stroke, strokeBrush);
}
public override void DrawString(out bool ellipsis, in CPF.Drawing.Point location, CPF.Drawing.Brush fillBrush, string text, in CPF.Drawing.Font font, in TextAlignment textAlignment = TextAlignment.Left, in float maxWidth = float.MaxValue, in TextDecoration decoration = default,
in float maxHeight = float.MaxValue,
in TextTrimming textTrimming = TextTrimming.None,
in Stroke stroke = default,
CPF.Drawing.Brush strokeBrush = null)
{
InitializeBrush(fillBrush);
ellipsis = false;
Pen strokePen = null;
if (strokeBrush != null && stroke.Width > 0)
{
InitializeBrush(strokeBrush);
strokePen = CreatePen(stroke, strokeBrush.AdapterBrush as System.Drawing.Brush);
}
StringFormat stringFormat = GenericTypographic;
var mw = maxWidth;
switch (textAlignment)
{
case TextAlignment.Right:
stringFormat = RightFormat;
break;
case TextAlignment.Center:
stringFormat = CenterFormat;
break;
}
var f = (FontStruct)font.AdapterFont;
if (textAlignment != TextAlignment.Left && maxWidth == float.MaxValue)
{
mw = drawingFactory.g.MeasureString(text, f.Font).Width;
}
if (mw != float.MaxValue)
{
mw = (float)Math.Ceiling(mw);
}
var mH = maxHeight;
if (mH != float.MaxValue)
{
mH = (float)Math.Ceiling(mH);
}
float y = location.Y;
float x = location.X;
var lines = text.Split('\n');
var drawLine = false;
if (decoration.Brush != null && decoration.Stroke.Width > 0)
{
drawLine = true;
InitializeBrush(decoration.Brush);
SetPen(decoration.Stroke, (System.Drawing.Brush)decoration.Brush.AdapterBrush);
}
var fHeight = f.Height;
var h = 0f;
var br = false;
//bool ellipsis = false;
for (int i = 0; i < lines.Length; i++)
{
var line = lines[i].Trim('\r');
if (i == lines.Length - 1 && line == "")
{
break;
}
//Console.WriteLine(line + "," + cf + "," + ls);
var index = 0;
var count = 0;
var len = line.Length;
while (index < len)
{
h += fHeight;
if (h > mH && y != location.Y)
{
br = true;
break;
}
var s = drawingFactory.g.MeasureString(line, f.Font, new SizeF(mw, fHeight), stringFormat, out count, out var ls);
string sub = line.Substring(0, count);
if (!string.IsNullOrWhiteSpace(sub))
{
var txt = sub;
if (textTrimming == TextTrimming.CharacterEllipsis && (sub.Length < line.Length || i < lines.Length - 1))
{
if (h + fHeight > mH)
{
if (s.Width < mw - fHeight)
{
txt = txt + "...";
}
else
{
txt = txt.Substring(0, txt.Length - 1) + "...";
}
ellipsis = true;
}
}
if (textTrimming == TextTrimming.CharacterCenterEllipsis && (sub.Length < line.Length || i < lines.Length - 1))
{
ellipsis = true;
DrawCenterString(location, fillBrush, text, font, textAlignment, maxWidth, decoration, maxHeight, stroke, strokeBrush);
return;
}
if (strokeBrush != null && stroke.Width > 0)
{
using (var path = new System.Drawing.Drawing2D.GraphicsPath())
{
path.AddString(txt, f.Font.FontFamily, (int)f.Font.Style, f.Font.Size, new RectangleF(x - 0.5f, y - 0.5f, mw, fHeight), stringFormat);
g.DrawPath(strokePen, path);
g.FillPath((System.Drawing.Brush)fillBrush.AdapterBrush, path);
}
}
else
{
g.DrawString(txt, f.Font, (System.Drawing.Brush)fillBrush.AdapterBrush, new RectangleF(x, y, mw, fHeight), stringFormat);
}
}
if (drawLine)
{
增加ResponsivePanel 调整绘图API
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var lw = drawingFactory.g.MeasureString(sub, f.Font).Width;
if (decoration.Location.HasFlag(TextDecorationLocation.Underline))
初始化
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{
增加ResponsivePanel 调整绘图API
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var ly = y;
ly = y + fHeight;
初始化
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增加ResponsivePanel 调整绘图API
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var lx = x;
switch (textAlignment)
{
case TextAlignment.Right:
lx = x + mw - lw;
break;
case TextAlignment.Center:
lx = x + (mw - lw) / 2;
break;
}
g.DrawLine(pen, lx, ly, lx + lw, ly);
}
if (decoration.Location.HasFlag(TextDecorationLocation.OverLine))
初始化
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{
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var ly = y;
var lx = x;
switch (textAlignment)
{
case TextAlignment.Right:
lx = x + mw - lw;
break;
case TextAlignment.Center:
lx = x + (mw - lw) / 2;
break;
}
g.DrawLine(pen, lx, ly, lx + lw, ly);
初始化
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}
增加ResponsivePanel 调整绘图API
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if (decoration.Location.HasFlag(TextDecorationLocation.Strikethrough))
{
var ly = y;
ly = y + fHeight / 2;
var lx = x;
switch (textAlignment)
{
case TextAlignment.Right:
lx = x + mw - lw;
break;
case TextAlignment.Center:
lx = x + (mw - lw) / 2;
break;
}
g.DrawLine(pen, lx, ly, lx + lw, ly);
}
初始化
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}
y += fHeight;
index += count;
if (index >= len)
{
break;
}
line = line.Substring(count);
}
if (br)
{
break;
}
}
strokePen?.Dispose();
}
public void DrawCenterString(in CPF.Drawing.Point location, CPF.Drawing.Brush fillBrush, string text, in CPF.Drawing.Font font, in TextAlignment textAlignment = TextAlignment.Left, in float maxWidth = float.MaxValue, in TextDecoration decoration = default,
in float maxHeight = float.MaxValue,
in Stroke stroke = default,
CPF.Drawing.Brush strokeBrush = null)
{
InitializeBrush(fillBrush);
Pen strokePen = null;
if (strokeBrush != null && stroke.Width > 0)
{
InitializeBrush(strokeBrush);
strokePen = CreatePen(stroke, strokeBrush.AdapterBrush as System.Drawing.Brush);
}
StringFormat stringFormat = GenericTypographic;
var mw = maxWidth;
switch (textAlignment)
{
case TextAlignment.Right:
stringFormat = RightFormat;
break;
case TextAlignment.Center:
stringFormat = CenterFormat;
break;
}
var f = (FontStruct)font.AdapterFont;
if (textAlignment != TextAlignment.Left && maxWidth == float.MaxValue)
{
mw = drawingFactory.g.MeasureString(text, f.Font).Width;
}
if (mw != float.MaxValue)
{
mw = (float)Math.Ceiling(mw);
}
var mH = maxHeight;
if (mH != float.MaxValue)
{
mH = (float)Math.Ceiling(mH);
}
float y = location.Y;
float x = location.X;
var drawLine = false;
if (decoration.Brush != null && decoration.Stroke.Width > 0)
{
drawLine = true;
InitializeBrush(decoration.Brush);
SetPen(decoration.Stroke, (System.Drawing.Brush)decoration.Brush.AdapterBrush);
}
var fHeight = f.Height;
var h = 0f;
var br = false;
//bool ellipsis = false;
string newText = text;
var lines = text.Split('\n');
if (lines.Length > 1)
{
newText = lines[0].Trim('\r') + "..." + lines[lines.Length - 1].Trim('\r');
}
else
{
newText = text.Trim('\r');
}
var index = 0;
var count = 0;
var len = newText.Length;
while (index < len)
{
h += fHeight;
if (h > mH && y != location.Y)
{
br = true;
break;
}
var s = drawingFactory.g.MeasureString(newText, f.Font, new SizeF(mw, fHeight), stringFormat, out count, out var ls);
string sub = newText.Substring(0, count);
if (!string.IsNullOrWhiteSpace(sub) && sub == newText)
{
var txt = sub;
if (strokeBrush != null && stroke.Width > 0)
{
using (var path = new System.Drawing.Drawing2D.GraphicsPath())
{
path.AddString(txt, f.Font.FontFamily, (int)f.Font.Style, f.Font.Size, new RectangleF(x - 0.5f, y - 0.5f, mw, fHeight), stringFormat);
g.DrawPath(strokePen, path);
g.FillPath((System.Drawing.Brush)fillBrush.AdapterBrush, path);
}
}
else
{
g.DrawString(txt, f.Font, (System.Drawing.Brush)fillBrush.AdapterBrush, new RectangleF(x, y, mw, fHeight), stringFormat);
}
}
else if (!string.IsNullOrWhiteSpace(sub) && sub != newText)
{
var txt = sub;
int countStart = 0;
int countEnd = 0;
var sStart = drawingFactory.g.MeasureString(newText, f.Font, new SizeF(mw / 2, fHeight), stringFormat, out countStart, out var lsStart);
List<char> wsEnds = new List<char>();
for (int i = newText.Length - 1; i >= 0; i--)
{
wsEnds.Add(newText[i]);
}
StringBuilder wsEnd = new StringBuilder();
wsEnds.ForEach(p =>
{
wsEnd.Append(p);
});
var sEnd = drawingFactory.g.MeasureString(wsEnd.ToString(), f.Font, new SizeF(mw / 2, fHeight), stringFormat, out countEnd, out var lsEnd);
string strStart = "";
if (countStart > 0)
strStart = newText.Substring(0, countStart - 1);
string strEnd = "";
if (countEnd > 0)
strEnd = newText.Substring(newText.Length - countEnd + 1, countEnd - 1);
newText = strStart + "..." + strEnd;
txt = newText;
if (strokeBrush != null && stroke.Width > 0)
{
using (var path = new System.Drawing.Drawing2D.GraphicsPath())
{
path.AddString(txt, f.Font.FontFamily, (int)f.Font.Style, f.Font.Size, new RectangleF(x - 0.5f, y - 0.5f, mw, fHeight), stringFormat);
g.DrawPath(strokePen, path);
g.FillPath((System.Drawing.Brush)fillBrush.AdapterBrush, path);
}
}
else
{
g.DrawString(txt, f.Font, (System.Drawing.Brush)fillBrush.AdapterBrush, new RectangleF(x, y, mw, fHeight), stringFormat);
}
}
if (drawLine)
{
增加ResponsivePanel 调整绘图API
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var lw = drawingFactory.g.MeasureString(sub, f.Font).Width;
if (decoration.Location.HasFlag(TextDecorationLocation.Underline))
初始化
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{
增加ResponsivePanel 调整绘图API
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var ly = y;
ly = y + fHeight;
初始化
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增加ResponsivePanel 调整绘图API
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var lx = x;
switch (textAlignment)
{
case TextAlignment.Right:
lx = x + mw - lw;
break;
case TextAlignment.Center:
lx = x + (mw - lw) / 2;
break;
}
g.DrawLine(pen, lx, ly, lx + lw, ly);
}
if (decoration.Location.HasFlag(TextDecorationLocation.OverLine))
{
var ly = y;
var lx = x;
switch (textAlignment)
{
case TextAlignment.Right:
lx = x + mw - lw;
break;
case TextAlignment.Center:
lx = x + (mw - lw) / 2;
break;
}
g.DrawLine(pen, lx, ly, lx + lw, ly);
}
if (decoration.Location.HasFlag(TextDecorationLocation.Strikethrough))
初始化
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{
增加ResponsivePanel 调整绘图API
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var ly = y;
ly = y + fHeight / 2;
var lx = x;
switch (textAlignment)
{
case TextAlignment.Right:
lx = x + mw - lw;
break;
case TextAlignment.Center:
lx = x + (mw - lw) / 2;
break;
}
g.DrawLine(pen, lx, ly, lx + lw, ly);
初始化
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}
增加ResponsivePanel 调整绘图API
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初始化
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}
y += fHeight;
index += count;
if (index >= len)
{
break;
}
}
strokePen?.Dispose();
}
List<Region> oldRegions = new List<Region>();
public override void PushClip(Rect rect)
{
oldRegions.Add(g.Clip);
g.SetClip(rect.ToRectangle(), System.Drawing.Drawing2D.CombineMode.Intersect);
}
public override void PopClip()
{
if (oldRegions.Count > 1)
{
g.SetClip(oldRegions[oldRegions.Count - 1], System.Drawing.Drawing2D.CombineMode.Replace);
oldRegions.RemoveAt(oldRegions.Count - 1);
}
else
{
g.ResetClip();
}
}
public override Matrix Transform
{
get
{
return g.Transform.ToMatrix();
}
set
{
//System.Drawing.Drawing2D.Matrix m = new System.Drawing.Drawing2D.Matrix((float)matrix.M11, (float)matrix.M12, (float)matrix.M21, (float)matrix.M22, (float)matrix.OffsetX, (float)matrix.OffsetY);
g.Transform = value.ToMatrix();
}
}
GDIPlusDrawingFactory _drawingFactory;
internal GDIPlusDrawingFactory drawingFactory
{
get { return _drawingFactory; }
set
{
_drawingFactory = value;
this.AntialiasMode = this.AntialiasMode;
}
}
public override DrawingFactory DrawingFactory
{
get { return drawingFactory; }
}
protected override IDisposable CreateSolidBrush(CPF.Drawing.Color color)
{
return new SolidBrush(color.ToGdiColor());
}
protected override IDisposable CreateLinearGradientBrush(GradientStop[] bcs, in CPF.Drawing.Point start, in CPF.Drawing.Point end, in Matrix matrix)
{
bcs[0].Position = 0;
System.Drawing.Drawing2D.ColorBlend cb = new System.Drawing.Drawing2D.ColorBlend();
cb.Colors = bcs.Select(a => a.Color.ToGdiColor()).ToArray();
cb.Positions = bcs.Select(a => a.Position).ToArray();
System.Drawing.Drawing2D.LinearGradientBrush l = new System.Drawing.Drawing2D.LinearGradientBrush(start.ToGdiPoint(), end.ToGdiPoint(), bcs[0].Color.ToGdiColor(), bcs[1].Color.ToGdiColor());
l.InterpolationColors = cb;
l.MultiplyTransform(matrix.ToMatrix());
//l.Transform = matrix.ToMatrix();
//l.RotateTransform(40);
//var m = l.Transform;
//m.Multiply(matrix.ToMatrix());
//l.Transform = m;
return l;
}
public override void Dispose()
{
if (hdc != IntPtr.Zero)
{
g.Dispose();
hdc = IntPtr.Zero;
}
if (pen != null)
{
pen.Dispose();
pen = null;
}
if (GenericTypographic != null)
{
GenericTypographic.Dispose();
GenericTypographic = null;
}
foreach (var item in oldRegions)
{
item.Dispose();
}
}
public override void Clear(CPF.Drawing.Color color)
{
g.Clear(color.ToGdiColor());
}
protected override IDisposable CreateTextureBrush(CPF.Drawing.Image image, in WrapMode wrapMode, in Matrix matrix)
{
GDIPlusImage i = image.ImageImpl as GDIPlusImage;
//try
//{
var wrap = wrapMode == WrapMode.Clamp ? System.Drawing.Drawing2D.WrapMode.Clamp : System.Drawing.Drawing2D.WrapMode.Tile;
System.Drawing.TextureBrush hb;
//if (i.Image.RawFormat.Guid == System.Drawing.Imaging.ImageFormat.Png.Guid)
//{
//using (var bitmap = new System.Drawing.Bitmap(i.Width, i.Height))
//{//某些格式的图片会出现异常，只能重新创建过图片了
// using (Graphics g = Graphics.FromImage(bitmap))
// {
// g.DrawImage(i.Image, new Rectangle(0, 0, i.Width, i.Height), new Rectangle(0, 0, i.Width, i.Height), GraphicsUnit.Pixel);
// }
// hb = new System.Drawing.TextureBrush(bitmap, wrap, new RectangleF(0, 0, i.Width, i.Height));
//}
//}
//else
//{
// try
// {
hb = new System.Drawing.TextureBrush(i.Image, wrap, new RectangleF(0, 0, i.Width, i.Height));
// }
// catch (Exception e)
// {
// throw new Exception("可能是GDI+图片兼容性问题，换个图片试试", e);
// }
//}
//hb.ScaleTransform(96 / g.DpiX, 96 / g.DpiY);
//hb.Transform = matrix.ToMatrix();
hb.MultiplyTransform(matrix.ToMatrix());
return hb;
//}
//catch (Exception e)
//{
// //Console.WriteLine(i.Image + ":" + i.Image.Size + i.Image.PixelFormat + (i.Image.RawFormat == System.Drawing.Imaging.ImageFormat.Png));
// throw e;
//}
}
public override void DrawPath(CPF.Drawing.Brush strokeBrush, in Stroke stroke, PathGeometry path)
{
InitializeBrush(strokeBrush);
SetPen(stroke, (System.Drawing.Brush)strokeBrush.AdapterBrush);
g.DrawPath(pen, (path.PathIml as GDIPlusPath).Path);
}
public override void FillPath(CPF.Drawing.Brush fillBrush, PathGeometry path)
{
InitializeBrush(fillBrush);
g.FillPath((System.Drawing.Brush)fillBrush.AdapterBrush, (path.PathIml as GDIPlusPath).Path);
}
protected override IDisposable CreateRadialGradientBrush(in CPF.Drawing.Point center, in float radius, GradientStop[] blendColors, in Matrix matrix)
{
System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();
path.AddEllipse(new RectangleF(center.X - radius, center.Y - radius, radius * 2, radius * 2));
System.Drawing.Drawing2D.PathGradientBrush p = new System.Drawing.Drawing2D.PathGradientBrush(path);
p.CenterPoint = new PointF(center.X, center.Y);
blendColors[0].Position = 0;
System.Drawing.Drawing2D.ColorBlend cb = new System.Drawing.Drawing2D.ColorBlend();
cb.Colors = blendColors.Select(a => a.Color.ToGdiColor()).Reverse().ToArray();
cb.Positions = blendColors.Select(a => 1 - a.Position).Reverse().ToArray();
p.InterpolationColors = cb;
//p.Transform = matrix.ToMatrix();
p.MultiplyTransform(matrix.ToMatrix());
return p;
}
//public override void DrawGeometry(CPF.Drawing.Brush strokeBrush, in Stroke stroke, Geometry geometry)
//{
// //InitializeBrush(strokeBrush);
// //g.FillRegion((System.Drawing.Brush)fillBrush.AdapterBrush, (geometry.GeometryImpl as GDIPlusPathGeometry).Region);
// throw new Exception("未实现DrawGeometry");
//}
//public override IDisposable CreateGeometry(Path path)
//{
// return new Region((System.Drawing.Drawing2D.GraphicsPath)path.AdapterPath);
//}
}
}
允许net5以上可选gdi
2024-06-07 09:58:49 +08:00
//#endif
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