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Viewing changes to external/xwt/Xwt.Gtk/Xwt.GtkBackend/HeaderBox.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/HeaderBox.cs
 
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// 
 
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// HeaderBox.cs
 
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//  
 
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// Author:
 
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//       Lluis Sanchez Gual <lluis@novell.com>
 
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// 
 
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// Copyright (c) 2011 Novell, Inc (http://www.novell.com)
 
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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 Gtk;
 
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using Xwt.Drawing;
 
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using Xwt.CairoBackend;
 
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namespace Xwt.GtkBackend
 
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{
 
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        class HeaderBox: Bin
 
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        {
 
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                Gtk.Widget child;
 
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                int topMargin;
 
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                int bottomMargin;
 
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                int leftMargin;
 
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                int rightMargin;
 
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                int topPadding;
 
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                int bottomPadding;
 
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                int leftPadding;
 
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                int rightPadding;
 
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                Color? color;
 
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                public HeaderBox ()
 
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                {
 
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                }
 
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                public HeaderBox (IntPtr p): base (p)
 
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                {
 
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                }
 
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                public HeaderBox (int topMargin, int bottomMargin, int leftMargin, int rightMargin)
 
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                {
 
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                        SetMargins (topMargin, bottomMargin, leftMargin, rightMargin);
 
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                }
 
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                public void SetBorderColor (Color color)
 
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                {
 
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                        this.color = color;
 
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                        QueueDraw ();
 
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                }
 
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                public void SetMargins (int topMargin, int bottomMargin, int leftMargin, int rightMargin)
 
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                {
 
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                        this.topMargin = topMargin;
 
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                        this.bottomMargin = bottomMargin;
 
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                        this.leftMargin = leftMargin;
 
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                        this.rightMargin = rightMargin;
 
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                }
 
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                public void SetPadding (int topPadding, int bottomPadding, int leftPadding, int rightPadding)
 
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                {
 
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                        this.topPadding = topPadding;
 
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                        this.bottomPadding = bottomPadding;
 
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                        this.leftPadding = leftPadding;
 
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                        this.rightPadding = rightPadding;
 
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                }
 
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                public bool GradientBackround { get; set; }
 
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                public bool DrawBackground { get; set; }
 
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                protected override void OnAdded (Gtk.Widget widget)
 
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                {
 
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                        base.OnAdded (widget);
 
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                        child = widget;
 
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                }
 
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                protected override void OnSizeRequested (ref Requisition requisition)
 
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                {
 
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                        if (child != null) {
 
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                                requisition = child.SizeRequest ();
 
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                                requisition.Width += leftMargin + rightMargin + leftPadding + rightPadding;
 
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                                requisition.Height += topMargin + bottomMargin + topPadding + bottomPadding;
 
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                        } else {
 
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                                requisition.Width = 0;
 
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                                requisition.Height = 0;
 
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                        }
 
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                }
 
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                protected override void OnSizeAllocated (Gdk.Rectangle allocation)
 
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                {
 
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                        base.OnSizeAllocated (allocation);
 
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                        if (allocation.Width > leftMargin + rightMargin + leftPadding + rightPadding) {
 
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                                allocation.X += leftMargin + leftPadding;
 
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                                allocation.Width -= leftMargin + rightMargin + leftPadding + rightPadding;
 
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                        }
 
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                        if (allocation.Height > topMargin + bottomMargin + topPadding + bottomPadding) {
 
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                                allocation.Y += topMargin + topPadding;
 
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                                allocation.Height -= topMargin + bottomMargin + topPadding + bottomPadding;
 
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                        }
 
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                        if (child != null)
 
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                                child.SizeAllocate (allocation);
 
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                }
 
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                protected override bool OnExposeEvent (Gdk.EventExpose evnt)
 
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                {
 
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                        Gdk.Rectangle rect;
 
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                        if (DrawBackground) {
 
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                                GdkWindow.DrawRectangle (Style.BackgroundGC (Gtk.StateType.Normal), true, Allocation.X, Allocation.Y, Allocation.Width - 1, Allocation.Height - 1);
 
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                        }
 
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                        if (GradientBackround) {
 
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                                rect = new Gdk.Rectangle (Allocation.X, Allocation.Y, Allocation.Width, Allocation.Height);
 
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                                Color gcol = Util.ToXwtColor (Style.Background (Gtk.StateType.Normal));
 
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                                using (Cairo.Context cr = Gdk.CairoHelper.Create (GdkWindow)) {
 
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                                        cr.NewPath ();
 
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                                        cr.MoveTo (rect.X, rect.Y);
 
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                                        cr.RelLineTo (rect.Width, 0);
 
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                                        cr.RelLineTo (0, rect.Height);
 
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                                        cr.RelLineTo (-rect.Width, 0);
 
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                                        cr.RelLineTo (0, -rect.Height);
 
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                                        cr.ClosePath ();
 
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                                        Cairo.Gradient pat = new Cairo.LinearGradient (rect.X, rect.Y, rect.X, rect.Bottom);
 
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                                        Cairo.Color color1 = gcol.ToCairoColor ();
 
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                                        pat.AddColorStop (0, color1);
 
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                                        gcol.Light -= 0.1;
 
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                                        pat.AddColorStop (1, gcol.ToCairoColor ());
 
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                                        cr.Pattern = pat;
 
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                                        cr.FillPreserve ();
 
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                                }
 
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                        }
 
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                        bool res = base.OnExposeEvent (evnt);
 
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                        Gdk.GC borderColor;
 
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                        if (color != null) {
 
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                                borderColor = new Gdk.GC (GdkWindow);
 
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                                borderColor.RgbFgColor = Util.ToGdkColor (color.Value);
 
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                        }
 
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                        else
 
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                                borderColor = Style.DarkGC (Gtk.StateType.Normal);
 
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                        rect = Allocation;
 
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                        for (int n=0; n<topMargin; n++)
 
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                                GdkWindow.DrawLine (borderColor, rect.X, rect.Y + n, rect.Right, rect.Y + n);
 
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                        for (int n=0; n<bottomMargin; n++)
 
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                                GdkWindow.DrawLine (borderColor, rect.X, rect.Bottom - n, rect.Right, rect.Bottom - n);
 
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                        for (int n=0; n<leftMargin; n++)
 
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                                GdkWindow.DrawLine (borderColor, rect.X + n, rect.Y, rect.X + n, rect.Bottom);
 
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                        for (int n=0; n<rightMargin; n++)
 
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                                GdkWindow.DrawLine (borderColor, rect.Right - n, rect.Y, rect.Right - n, rect.Bottom);
 
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                        if (color != null)
 
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                                borderColor.Dispose ();
 
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                        return res;
 
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                }
 
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        }
 
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}
 
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