本文整理汇总了C#中Graphics.Save方法的典型用法代码示例。如果您正苦于以下问题：C# Graphics.Save方法的具体用法？C# Graphics.Save怎么用？C# Graphics.Save使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Graphics的用法示例。
在下文中一共展示了Graphics.Save方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: PaintTransparentBackground
protected void PaintTransparentBackground(Graphics g, Rectangle clipRect)
{
if (this.Parent != null)
{
clipRect.Offset(this.Location);
PaintEventArgs e = new PaintEventArgs(g, clipRect);
GraphicsState state = g.Save();
g.SmoothingMode = SmoothingMode.HighSpeed;
try
{
g.TranslateTransform(System.Convert.ToSingle(- this.Location.X), System.Convert.ToSingle(- this.Location.Y));
this.InvokePaintBackground(this.Parent, e);
this.InvokePaint(this.Parent, e);
}
finally
{
g.Restore(state);
clipRect.Offset(- this.Location.X, - this.Location.Y);
}
}
else
{
System.Drawing.Drawing2D.LinearGradientBrush backBrush = new System.Drawing.Drawing2D.LinearGradientBrush(this.Bounds, SystemColors.ControlLightLight, SystemColors.ControlLight, System.Drawing.Drawing2D.LinearGradientMode.Vertical);
g.FillRectangle(backBrush, this.Bounds);
backBrush.Dispose();
}
}示例2: DrawMeasure
private void DrawMeasure(Graphics graphics, IGeometry geometry)
{
string measureUnits = AppSettings.MeasureUnits;
bool inFeet = measureUnits == "feet" || measureUnits == "both";
bool inMeters = measureUnits == "meters" || measureUnits == "both";
System.Drawing.Font font = AppSettings.MeasureFont;
font = new System.Drawing.Font(font.FontFamily, Convert.ToSingle(font.Size * _resolution), font.Style, font.Unit);
SolidBrush brush = new SolidBrush(Color.FromArgb(64, 64, 64));
SolidBrush glowBrush = new SolidBrush(Color.White);
StringFormat format = new StringFormat();
format.Alignment = StringAlignment.Center;
format.LineAlignment = StringAlignment.Center;
double convert = 1 / (AppSettings.MapUnits == "feet" ? 1 : Constants.MetersPerFoot);
StringCollection text = new StringCollection();
switch (geometry.OgcGeometryType)
{
case OgcGeometryType.LineString:
ILineString lineString = (ILineString)geometry;
double d = lineString.Length * convert;
if (inFeet)
{
text.Add(d < 5280 ? d.ToString("0") + " ft" : (d / 5280).ToString("0.0") + " mi");
}
if (inMeters)
{
d *= Constants.MetersPerFoot;
text.Add(d < 1000 ? d.ToString("0") + " m" : (d / 1000).ToString("0.0") + " km");
}
IPoint p;
double angle;
GetMidpoint(lineString, out p, out angle);
angle = -(angle * 180 / Math.PI);
angle = angle < -90 || 90 < angle ? angle + 180 : angle < 0 ? angle + 360 : angle;
p = _transform.ReverseTransform(p);
float x = Convert.ToSingle(p.Coordinate.X * _resolution);
float y = Convert.ToSingle(p.Coordinate.Y * _resolution);
format.LineAlignment = StringAlignment.Far;
int[] pos = new int[] { 0, 1, 2, 3, 5, 6, 7, 8, 4 };
for (int i = 0; i < 9; ++i)
{
float offsetX = (pos[i] % 3) - 1;
float offsetY = Convert.ToSingle(Math.Floor(pos[i] / 3.0)) - 1;
System.Drawing.Drawing2D.GraphicsState state = graphics.Save();
graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
graphics.TranslateTransform(x, y);
graphics.RotateTransform(Convert.ToSingle(angle));
graphics.DrawString(text.Join("\n"), font, i < 8 ? glowBrush : brush, Convert.ToSingle(offsetX * _resolution), Convert.ToSingle(offsetY - 3 * _resolution), format);
graphics.Restore(state);
}
break;
case OgcGeometryType.Polygon:
IPolygon polygon = (IPolygon)geometry;
IPoint c = polygon.Centroid;
if (c != null)
{
double a = polygon.Area * convert * convert;
double acres = a / Constants.SquareFeetPerAcre;
if (inFeet)
{
double squareMile = Constants.FeetPerMile * Constants.FeetPerMile;
text.Add(a <= squareMile ? a.ToString("0") + " sq ft" : (a / squareMile).ToString("0.00") + " sq mi");
}
if (inMeters)
{
a *= Constants.MetersPerFoot * Constants.MetersPerFoot;
text.Add(a <= 100000 ? a.ToString("0") + " sq m" : (a / 1000000).ToString("0.00") + " sq km");
}
if (inFeet)
{
text.Add(acres.ToString("0.00") + " acres");
}
DrawText(graphics, c, text.Join("\n"), font, brush, glowBrush, 0, 0, format);
}
break;
}
}