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Viewing changes to external/xwt/Xwt.Gtk/Xwt.GtkBackend/FrameBackend.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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external/xwt/Xwt.Gtk/Xwt.GtkBackend/FrameBackend.cs
 
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// 
 
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// FrameBackend.cs
 
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//  
 
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// Author:
 
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//       Lluis Sanchez <lluis@xamarin.com>
 
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// 
 
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// Copyright (c) 2011 Xamarin Inc
 
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// 
 
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// Permission is hereby granted, free of charge, to any person obtaining a copy
 
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// of this software and associated documentation files (the "Software"), to deal
 
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// in the Software without restriction, including without limitation the rights
 
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 
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// copies of the Software, and to permit persons to whom the Software is
 
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// 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 in
 
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// 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 THE
 
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// 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 FROM,
 
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 
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// THE SOFTWARE.
 
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using System;
 
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using Xwt.Backends;
 
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using Xwt.Drawing;
 
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namespace Xwt.GtkBackend
 
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{
 
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        public class FrameBackend:  WidgetBackend, IFrameBackend
 
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        {
 
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                Gtk.Alignment paddingAlign;
 
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                string label;
 
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                Color? borderColor;
 
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                public FrameBackend ()
 
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                {
 
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                        Widget = new Gtk.Frame ();
 
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                        Widget.Show ();
 
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                }
 
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                protected new Gtk.Bin Widget {
 
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                        get { return (Gtk.Bin)base.Widget; }
 
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                        set { base.Widget = value; }
 
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                }
 
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                protected new IFrameEventSink EventSink {
 
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                        get { return (IFrameEventSink)base.EventSink; }
 
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                }
 
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                #region IFrameBackend implementation
 
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                public void SetContent (IWidgetBackend child)
 
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                {
 
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                        Gtk.Bin parent = paddingAlign != null ? paddingAlign : Widget;
 
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                        if (child != null) {
 
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                                var w = GetWidget (child);
 
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                                if (parent.Child != null)
 
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                                        parent.Remove (parent.Child);
 
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                                parent.Child = w;
 
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                        } else {
 
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                                parent.Child = null;
 
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                        }
 
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                }
 
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                public void SetFrameType (FrameType type)
 
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                {
 
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                        Frame f = (Frame) Frontend;
 
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                        switch (type) {
 
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                        case FrameType.Custom:
 
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                                if (!(Widget is HeaderBox)) {
 
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                                        HeaderBox box = new HeaderBox ();
 
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                                        box.Show ();
 
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                                        box.DrawBackground = UsingCustomBackgroundColor;
 
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                                        box.SetMargins ((int)f.Margin.Top, (int)f.Margin.Bottom, (int)f.Margin.Left, (int)f.Margin.Right);
 
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                                        box.SetPadding ((int)f.Padding.Top, (int)f.Padding.Bottom, (int)f.Padding.Left, (int)f.Padding.Right);
 
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                                        if (borderColor != null)
 
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                                                box.SetBorderColor (borderColor.Value);
 
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                                        var c = paddingAlign != null ? paddingAlign.Child : Widget.Child;
 
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                                        if (c != null) {
 
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                                                ((Gtk.Container)c.Parent).Remove (c);
 
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                                                box.Add (c);
 
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                                        }
 
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                                        Widget = box;
 
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                                        if (paddingAlign != null) {
 
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                                                paddingAlign.Destroy ();
 
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                                                paddingAlign = null;
 
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                                        }
 
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                                }
 
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                                break;
 
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                        case FrameType.WidgetBox:
 
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                                if (!(Widget is Gtk.Frame)) {
 
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                                        var c = Widget.Child;
 
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                                        if (c != null)
 
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                                                Widget.Remove (c);
 
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                                        Gtk.Frame gf = new Gtk.Frame ();
 
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                                        if (!string.IsNullOrEmpty (label))
 
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                                                gf.Label = label;
 
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                                        if (f.Padding.HorizontalSpacing != 0 || f.Padding.VerticalSpacing != 0) {
 
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                                                paddingAlign = new Gtk.Alignment (0, 0, 1, 1);
 
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                                                paddingAlign.Show ();
 
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                                                UreatePaddingAlign (f.Padding.Top, f.Padding.Bottom, f.Padding.Left, f.Padding.Right);
 
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                                                if (c != null)
 
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                                                        paddingAlign.Add (c);
 
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                                                gf.Add (paddingAlign);
 
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                                        } else {
 
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                                                if (c != null)
 
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                                                        gf.Add (c);
 
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                                        }
 
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                                        gf.Show ();
 
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                                        Widget = gf;
 
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                                }
 
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                                break;
 
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                        }
 
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                }
 
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                void UreatePaddingAlign (double top, double bottom, double left, double right)
 
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                {
 
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                        paddingAlign.TopPadding = (uint) top;
 
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                        paddingAlign.BottomPadding = (uint) bottom;
 
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                        paddingAlign.LeftPadding = (uint) left;
 
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                        paddingAlign.RightPadding = (uint) right;
 
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                }
 
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                public void SetBorderSize (double left, double right, double top, double bottom)
 
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                {
 
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                        HeaderBox hb = Widget as HeaderBox;
 
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                        if (hb != null) {
 
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                                hb.SetMargins ((int)top, (int)bottom, (int)left, (int)right);
 
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                        }
 
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                }
 
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                public void SetPadding (double left, double right, double top, double bottom)
 
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                {
 
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                        if (Widget is HeaderBox) {
 
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                                HeaderBox hb = (HeaderBox) Widget;
 
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                                hb.SetPadding ((int)top, (int)bottom, (int)left, (int)right);
 
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                                return;
 
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                        }
 
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                        if (left == 0 && right == 0 && top == 0 && bottom == 0 && paddingAlign == null)
 
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                                return;
 
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                        if (paddingAlign == null) {
 
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                                paddingAlign = new Gtk.Alignment (0, 0, 1, 1);
 
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                                paddingAlign.Show ();
 
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                                var c = Widget.Child;
 
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                                if (c != null) {
 
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                                        Widget.Remove (c);
 
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                                        paddingAlign.Add (c);
 
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                                }
 
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                                Widget.Add (paddingAlign);
 
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                        }
 
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                        UreatePaddingAlign (top, bottom, left, right);
 
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                }
 
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                public Color BorderColor {
 
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                        get {
 
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                                if (borderColor == null)
 
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                                        return Util.ToXwtColor (Widget.Style.Dark (Gtk.StateType.Normal));
 
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                                else
 
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                                        return borderColor.Value;
 
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                        }
 
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                        set {
 
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                                borderColor = value;
 
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                                HeaderBox hb = Widget as HeaderBox;
 
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                                if (hb != null)
 
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                                        hb.SetBorderColor (value);
 
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                        }
 
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                }
 
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                public override Color BackgroundColor {
 
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                        get {
 
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                                return base.BackgroundColor;
 
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                        }
 
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                        set {
 
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                                base.BackgroundColor = value;
 
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                                if (Widget is HeaderBox)
 
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                                        ((HeaderBox)Widget).DrawBackground = true;
 
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                        }
 
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                }
 
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                public string Label {
 
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                        get {
 
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                                return label;
 
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                        }
 
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                        set {
 
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                                label = value;
 
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                                if (Widget is Gtk.Frame)
 
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                                        ((Gtk.Frame)Widget).Label = value;
 
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                        }
 
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                }
 
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                #endregion
 
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        }
 
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}
 
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