Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / MIT / System / Web / UI / MobileControls / Design / Adapters / DesignerTextBoxAdapter.cs / 1305376 / DesignerTextBoxAdapter.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System.Globalization; using System.IO; using System.Web.Mobile; using System.Web.UI.MobileControls; using System.Web.UI.MobileControls.Adapters; namespace System.Web.UI.Design.MobileControls.Adapters { [ System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode) ] [Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")] internal class DesignerTextBoxAdapter : HtmlTextBoxAdapter { // required width may differ a little bit from actual exact pixel value private const int SAFETY_MARGIN = 12; // size after which we simply assume the control is too large to fit // into its container. private const int LARGESIZE_THRESHOLD = 100; public override MobileCapabilities Device { get { return DesignerCapabilities.Instance; } } public override void Render(HtmlMobileTextWriter writer) { // Invalid text writers are not supported in this Adapter. if (!(writer is DesignerTextWriter)) { return; } byte templateStatus; bool pwd = Control.Password; int size = Control.Size; int fittingSize; int maxWidth = DesignerAdapterUtil.GetMaxWidthToFit(Control, out templateStatus); if (maxWidth == 0) { if (templateStatus == DesignerAdapterUtil.CONTROL_IN_TEMPLATE_NONEDIT) { maxWidth = DesignerAdapterUtil.CONTROL_MAX_WIDTH_IN_TEMPLATE; } else if (DesignerAdapterUtil.InMobileUserControl(Control)) { maxWidth = Constants.ControlMaxsizeAtToplevel; } } if (maxWidth == 0) { return; } bool restoreEmptyFontName = false; if (String.IsNullOrEmpty((String) Style[Style.FontNameKey, true])) { // MSHTMLHostUtil is using another font by default. // Setting the font name to the one that is actually // used by default for the desig-time rendering // assures that the requiredWidth returned by // MSHTMLHostUtil.GetHtmlFragmentWidth is accurate. Style[Style.FontNameKey] = "Arial"; restoreEmptyFontName = true; } int requiredWidth = 0; DesignerTextWriter tw; tw = new DesignerTextWriter(false); tw.EnterLayout(Style); String enterLayout = tw.ToString(); tw = new DesignerTextWriter(false); tw.ExitLayout(Style); String exitLayout = tw.ToString(); tw = new DesignerTextWriter(false); tw.WriteBeginTag("input"); tw.WriteStyleAttribute(Style, null); if (size > 0) { tw.WriteAttribute("size", "{0}"); } tw.Write("/>"); String htmlFragment = tw.ToString(); MSHTMLHostUtil.ApplyStyle(enterLayout, exitLayout, null); if (size < LARGESIZE_THRESHOLD) { requiredWidth = MSHTMLHostUtil.GetHtmlFragmentWidth(size > 0 ? String.Format(CultureInfo.InvariantCulture, htmlFragment, size) : htmlFragment); } if (requiredWidth + SAFETY_MARGIN > maxWidth || size >= LARGESIZE_THRESHOLD) { if (size == 0) { tw = new DesignerTextWriter(false); tw.WriteBeginTag("input"); tw.WriteStyleAttribute(Style, null); tw.WriteAttribute("size", "{0}"); tw.Write("/>"); htmlFragment = tw.ToString(); } fittingSize = 0; do { fittingSize++; requiredWidth = MSHTMLHostUtil.GetHtmlFragmentWidth(String.Format(CultureInfo.InvariantCulture, htmlFragment, fittingSize)); } while (requiredWidth + SAFETY_MARGIN <= maxWidth); if (fittingSize > 1) { fittingSize--; } } else { fittingSize = size; } if (restoreEmptyFontName) { Style[Style.FontNameKey] = String.Empty; } Alignment alignment = (Alignment) Style[Style.AlignmentKey, true]; String width = DesignerAdapterUtil.GetWidth(Control); writer.Write(""); ((DesignerTextWriter)writer).EnterZeroFontSizeTag(); writer.EnterLayout(Style); writer.WriteBeginTag("input"); ((DesignerTextWriter)writer).WriteStyleAttribute(Style, null); if (!String.IsNullOrEmpty(Control.Text)) { writer.Write(" value=\""); writer.WriteText(Control.Text, true); writer.Write("\" "); } if (fittingSize > 0) { writer.WriteAttribute("size", fittingSize.ToString(CultureInfo.InvariantCulture)); } if (pwd) { writer.WriteAttribute("type", "password"); } writer.Write("/>"); writer.ExitLayout(Style); ((DesignerTextWriter)writer).ExitZeroFontSizeTag(); writer.Write(""); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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