ASCU_ALL/PrintPDF/MigraDoc.Rendering/Rendering/BordersRenderer.cs
2021-05-25 17:00:45 +05:00

306 lines
11 KiB
C#

#region MigraDoc - Creating Documents on the Fly
//
// Authors:
// Klaus Potzesny
//
// Copyright (c) 2001-2017 empira Software GmbH, Cologne Area (Germany)
//
// http://www.pdfsharp.com
// http://www.migradoc.com
// http://sourceforge.net/projects/pdfsharp
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
#endregion
using System.Diagnostics;
using MigraDoc.DocumentObjectModel;
using MigraDoc.DocumentObjectModel.Tables;
using PdfSharp.Drawing;
namespace MigraDoc.Rendering
{
/// <summary>
/// Renders a single Border.
/// </summary>
public class BordersRenderer
{
public BordersRenderer(Borders borders, XGraphics gfx)
{
Debug.Assert(borders.Document != null);
_gfx = gfx;
_borders = borders;
}
private Border GetBorder(BorderType type)
{
return _borders.GetBorderReadOnly(type);
}
private XColor GetColor(BorderType type)
{
Color clr = Colors.Black;
Border border = GetBorder(type);
if (border != null && !border.Color.IsEmpty)
clr = border.Color;
else if (!_borders.Color.IsEmpty)
clr = _borders.Color;
#if noCMYK
return XColor.FromArgb((int)clr.Argb);
#else
// bool cmyk = false; // BUG CMYK
// if (_borders.Document != null)
// cmyk = _borders.Document.UseCmykColor;
//#if DEBUG
// else
// GetT ype();
//#endif
return ColorHelper.ToXColor(clr, _borders.Document.UseCmykColor);
#endif
}
private BorderStyle GetStyle(BorderType type)
{
BorderStyle style = BorderStyle.Single;
Border border = GetBorder(type);
if (border != null && !border._style.IsNull)
style = border.Style;
else if (!_borders._style.IsNull)
style = _borders.Style;
return style;
}
public XUnit GetWidth(BorderType type)
{
if (_borders == null)
return 0;
Border border = GetBorder(type);
if (border != null)
{
if (!border._visible.IsNull && !border.Visible)
return 0;
if (!border._width.IsNull)
return border.Width.Point;
if (!border._color.IsNull || !border._style.IsNull || border.Visible)
{
if (!_borders._width.IsNull)
return _borders.Width.Point;
return 0.5;
}
}
else if (!(type == BorderType.DiagonalDown || type == BorderType.DiagonalUp))
{
if (!_borders._visible.IsNull && !_borders.Visible)
return 0;
if (!_borders._width.IsNull)
return _borders.Width.Point;
if (!_borders._color.IsNull || !_borders._style.IsNull || _borders.Visible)
return 0.5;
}
return 0;
}
/// <summary>
/// Renders the border top down.
/// </summary>
/// <param name="type">The type of the border.</param>
/// <param name="left">The left position of the border.</param>
/// <param name="top">The top position of the border.</param>
/// <param name="height">The height on which to render the border.</param>
public void RenderVertically(BorderType type, XUnit left, XUnit top, XUnit height)
{
XUnit borderWidth = GetWidth(type);
if (borderWidth == 0)
return;
left += borderWidth / 2;
_gfx.DrawLine(GetPen(type), left, top + height, left, top);
}
/// <summary>
/// Renders the border top down.
/// </summary>
/// <param name="type">The type of the border.</param>
/// <param name="left">The left position of the border.</param>
/// <param name="top">The top position of the border.</param>
/// <param name="width">The width on which to render the border.</param>
public void RenderHorizontally(BorderType type, XUnit left, XUnit top, XUnit width)
{
XUnit borderWidth = GetWidth(type);
if (borderWidth == 0)
return;
top += borderWidth / 2;
_gfx.DrawLine(GetPen(type), left + width, top, left, top);
}
public void RenderDiagonally(BorderType type, XUnit left, XUnit top, XUnit width, XUnit height)
{
XUnit borderWidth = GetWidth(type);
if (borderWidth == 0)
return;
XGraphicsState state = _gfx.Save();
_gfx.IntersectClip(new XRect(left, top, width, height));
if (type == BorderType.DiagonalDown)
_gfx.DrawLine(GetPen(type), left, top, left + width, top + height);
else if (type == BorderType.DiagonalUp)
_gfx.DrawLine(GetPen(type), left, top + height, left + width, top);
_gfx.Restore(state);
}
public void RenderRounded(RoundedCorner roundedCorner, XUnit x, XUnit y, XUnit width, XUnit height)
{
if (roundedCorner == RoundedCorner.None)
return;
// As source we use the vertical borders.
// If not set originally, they have been set to the horizontal border values in TableRenderer.EqualizeRoundedCornerBorders().
BorderType borderType = BorderType.Top;
if (roundedCorner == RoundedCorner.TopLeft || roundedCorner == RoundedCorner.BottomLeft)
borderType = BorderType.Left;
if (roundedCorner == RoundedCorner.TopRight || roundedCorner == RoundedCorner.BottomRight)
borderType = BorderType.Right;
XUnit borderWidth = GetWidth(borderType);
XPen borderPen = GetPen(borderType);
if (borderWidth == 0)
return;
x -= borderWidth / 2;
y -= borderWidth / 2;
XUnit ellipseWidth = width * 2 + borderWidth;
XUnit ellipseHeight = height * 2 + borderWidth;
switch (roundedCorner)
{
case RoundedCorner.TopLeft:
_gfx.DrawArc(borderPen, new XRect(x, y, ellipseWidth, ellipseHeight), 180, 90);
break;
case RoundedCorner.TopRight:
_gfx.DrawArc(borderPen, new XRect(x - width, y, ellipseWidth, ellipseHeight), 270, 90);
break;
case RoundedCorner.BottomRight:
_gfx.DrawArc(borderPen, new XRect(x - width, y - height, ellipseWidth, ellipseHeight), 0, 90);
break;
case RoundedCorner.BottomLeft:
_gfx.DrawArc(borderPen, new XRect(x, y - height, ellipseWidth, ellipseHeight), 90, 90);
break;
}
}
private XPen GetPen(BorderType type)
{
XUnit borderWidth = GetWidth(type);
if (borderWidth == 0)
return null;
XPen pen = new XPen(GetColor(type), borderWidth);
BorderStyle style = GetStyle(type);
switch (style)
{
case BorderStyle.DashDot:
pen.DashStyle = XDashStyle.DashDot;
break;
case BorderStyle.DashDotDot:
pen.DashStyle = XDashStyle.DashDotDot;
break;
case BorderStyle.DashLargeGap:
pen.DashPattern = new double[] { 3, 3 };
break;
case BorderStyle.DashSmallGap:
pen.DashPattern = new double[] { 5, 1 };
break;
case BorderStyle.Dot:
pen.DashStyle = XDashStyle.Dot;
break;
case BorderStyle.Single:
default:
pen.DashStyle = XDashStyle.Solid;
break;
}
return pen;
}
public bool IsRendered(BorderType borderType)
{
if (_borders == null)
return false;
switch (borderType)
{
case BorderType.Left:
if (_borders._left == null || _borders._left.IsNull())
return false;
return GetWidth(borderType) > 0;
case BorderType.Right:
if (_borders._right == null || _borders._right.IsNull())
return false;
return GetWidth(borderType) > 0;
case BorderType.Top:
if (_borders._top == null || _borders._top.IsNull())
return false;
return GetWidth(borderType) > 0;
case BorderType.Bottom:
if (_borders._bottom == null || _borders._bottom.IsNull())
return false;
return GetWidth(borderType) > 0;
case BorderType.DiagonalDown:
if (_borders._diagonalDown == null || _borders._diagonalDown.IsNull())
return false;
return GetWidth(borderType) > 0;
case BorderType.DiagonalUp:
if (_borders._diagonalUp == null || _borders._diagonalUp.IsNull())
return false;
return GetWidth(borderType) > 0;
}
return false;
}
readonly XGraphics _gfx;
readonly Borders _borders;
}
}