121 lines
4.4 KiB
C#
121 lines
4.4 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 MigraDoc.DocumentObjectModel.Tables;
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using PdfSharp.Drawing;
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using MigraDoc.DocumentObjectModel;
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namespace MigraDoc.Rendering
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{
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/// <summary>
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/// Renders a Shading to an XGraphics object.
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/// </summary>
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public class ShadingRenderer
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{
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public ShadingRenderer(XGraphics gfx, Shading shading)
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{
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_gfx = gfx;
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_shading = shading;
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RealizeBrush();
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}
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public void Render(XUnit x, XUnit y, XUnit width, XUnit height)
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{
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if (_shading == null || _brush == null)
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return;
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_gfx.DrawRectangle(_brush, x.Point, y.Point, width.Point, height.Point);
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}
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public void Render(XUnit x, XUnit y, XUnit width, XUnit height, RoundedCorner roundedCorner)
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{
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// If there is no rounded corner, we can use the usual Render method.
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if (roundedCorner == RoundedCorner.None)
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{
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Render(x, y, width, height);
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return;
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}
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if (_shading == null || _brush == null)
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return;
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XGraphicsPath path = new XGraphicsPath();
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switch (roundedCorner)
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{
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case RoundedCorner.TopLeft:
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path.AddArc(new XRect(x, y, width * 2, height * 2), 180, 90); // Error in CORE: _corePath.AddArc().
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path.AddLine(new XPoint(x + width, y), new XPoint(x + width, y + height));
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break;
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case RoundedCorner.TopRight:
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path.AddArc(new XRect(x - width, y, width * 2, height * 2), 270, 90); // Error in CORE: _corePath.AddArc().
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path.AddLine(new XPoint(x + width, y + height), new XPoint(x, y + height));
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break;
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case RoundedCorner.BottomRight:
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path.AddArc(new XRect(x - width, y - height, width * 2, height * 2), 0, 90); // Error in CORE: _corePath.AddArc().
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path.AddLine(new XPoint(x, y + height), new XPoint(x, y));
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break;
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case RoundedCorner.BottomLeft:
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path.AddArc(new XRect(x, y - height, width * 2, height * 2), 90, 90); // Error in CORE: _corePath.AddArc().
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path.AddLine(new XPoint(x, y), new XPoint(x + width, y));
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break;
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}
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path.CloseFigure();
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_gfx.DrawPath(_brush, path);
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}
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private bool IsVisible()
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{
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if (!_shading._visible.IsNull)
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return _shading.Visible;
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else
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return !_shading._color.IsNull;
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}
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private void RealizeBrush()
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{
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if (_shading == null)
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return;
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if (IsVisible())
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{
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#if noCMYK
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this.brush = new XSolidBrush(XColor.FromArgb((int)this.shading.Color.Argb));
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#else
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_brush = new XSolidBrush(ColorHelper.ToXColor(_shading.Color, _shading.Document.UseCmykColor));
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#endif
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}
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}
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readonly Shading _shading;
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XBrush _brush;
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readonly XGraphics _gfx;
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}
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}
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