#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; using System.Collections.Generic; using MigraDoc.DocumentObjectModel; using MigraDoc.DocumentObjectModel.Shapes.Charts; using PdfSharp.Drawing; namespace MigraDoc.Rendering { /// /// Represents a formatted text area. /// public class FormattedTextArea : IAreaProvider { public FormattedTextArea(DocumentRenderer documentRenderer, TextArea textArea, FieldInfos fieldInfos) { TextArea = textArea; _fieldInfos = fieldInfos; _documentRenderer = documentRenderer; } public void Format(XGraphics gfx) { _gfx = gfx; _isFirstArea = true; _formatter = new TopDownFormatter(this, _documentRenderer, TextArea.Elements); _formatter.FormatOnAreas(gfx, false); } public XUnit InnerWidth { set { _innerWidth = value; } get { if (double.IsNaN(_innerWidth)) { if (!TextArea._width.IsNull) _innerWidth = TextArea.Width.Point; else _innerWidth = CalcInherentWidth(); } return _innerWidth; } } XUnit _innerWidth = double.NaN; public XUnit InnerHeight { get { if (TextArea._height.IsNull) return ContentHeight + TextArea.TopPadding + TextArea.BottomPadding; return TextArea.Height.Point; } } XUnit CalcInherentWidth() { XUnit inherentWidth = 0; foreach (DocumentObject obj in TextArea.Elements) { Renderer renderer = Renderer.Create(_gfx, _documentRenderer, obj, _fieldInfos); if (renderer != null) { renderer.Format(new Rectangle(0, 0, double.MaxValue, double.MaxValue), null); inherentWidth = Math.Max(renderer.RenderInfo.LayoutInfo.MinWidth, inherentWidth); } } inherentWidth += TextArea.LeftPadding; inherentWidth += TextArea.RightPadding; return inherentWidth; } Area IAreaProvider.GetNextArea() { if (_isFirstArea) return CalcContentRect(); return null; } Area IAreaProvider.ProbeNextArea() { return null; } FieldInfos IAreaProvider.AreaFieldInfos { get { return _fieldInfos; } } void IAreaProvider.StoreRenderInfos(List renderInfos) { _renderInfos = renderInfos; } bool IAreaProvider.IsAreaBreakBefore(LayoutInfo layoutInfo) { return false; } public RenderInfo[] GetRenderInfos() { if (_renderInfos != null) return _renderInfos.ToArray(); return null; } public XUnit ContentHeight { get { return RenderInfo.GetTotalHeight(GetRenderInfos()); } } Rectangle CalcContentRect() { XUnit width = InnerWidth - TextArea.LeftPadding - TextArea.RightPadding; XUnit height = double.MaxValue; return new Rectangle(0, 0, width, height); } bool IAreaProvider.PositionVertically(LayoutInfo layoutInfo) { return false; } bool IAreaProvider.PositionHorizontally(LayoutInfo layoutInfo) { return false; } public readonly TextArea TextArea; readonly FieldInfos _fieldInfos; TopDownFormatter _formatter; List _renderInfos; XGraphics _gfx; bool _isFirstArea; readonly DocumentRenderer _documentRenderer; } }