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