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//
// HeaderBox.cs
//
// Author:
// Lluis Sanchez Gual <lluis@novell.com>
//
// Copyright (c) 2011 Novell, Inc (http://www.novell.com)
//
// 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.
using System;
using Gtk;
namespace Mono.Addins.Gui
{
class HeaderBox: Bin
{
Gtk.Widget child;
int topMargin;
int bottomMargin;
int leftMargin;
int rightMargin;
int topPadding;
int bottomPadding;
int leftPadding;
int rightPadding;
bool useCustomColor;
Gdk.Color customColor;
public HeaderBox ()
{
}
public HeaderBox (int topMargin, int bottomMargin, int leftMargin, int rightMargin)
{
SetMargins (topMargin, bottomMargin, leftMargin, rightMargin);
}
public void Replace (Gtk.Bin parent)
{
Gtk.Widget c = parent.Child;
parent.Remove (c);
Add (c);
parent.Add (this);
}
public void SetMargins (int topMargin, int bottomMargin, int leftMargin, int rightMargin)
{
this.topMargin = topMargin;
this.bottomMargin = bottomMargin;
this.leftMargin = leftMargin;
this.rightMargin = rightMargin;
}
public void SetPadding (int topPadding, int bottomPadding, int leftPadding, int rightPadding)
{
this.topPadding = topPadding;
this.bottomPadding = bottomPadding;
this.leftPadding = leftPadding;
this.rightPadding = rightPadding;
}
public bool GradientBackround { get; set; }
public Gdk.Color BackgroundColor {
get { return customColor; }
set { customColor = value; useCustomColor = true; }
}
public void ResetBackgroundColor ()
{
useCustomColor = false;
}
protected override void OnAdded (Widget widget)
{
base.OnAdded (widget);
child = widget;
}
protected override void OnSizeRequested (ref Requisition requisition)
{
if (child != null) {
requisition = child.SizeRequest ();
requisition.Width += leftMargin + rightMargin + leftPadding + rightPadding;
requisition.Height += topMargin + bottomMargin + topPadding + bottomPadding;
} else {
requisition.Width = 0;
requisition.Height = 0;
}
}
protected override void OnSizeAllocated (Gdk.Rectangle allocation)
{
base.OnSizeAllocated (allocation);
if (allocation.Width > leftMargin + rightMargin + leftPadding + rightPadding) {
allocation.X += leftMargin + leftPadding;
allocation.Width -= leftMargin + rightMargin + leftPadding + rightPadding;
}
if (allocation.Height > topMargin + bottomMargin + topPadding + bottomPadding) {
allocation.Y += topMargin + topPadding;
allocation.Height -= topMargin + bottomMargin + topPadding + bottomPadding;
}
if (child != null)
child.SizeAllocate (allocation);
}
protected override bool OnExposeEvent (Gdk.EventExpose evnt)
{
Gdk.Rectangle rect;
if (GradientBackround) {
rect = new Gdk.Rectangle (Allocation.X, Allocation.Y, Allocation.Width, Allocation.Height);
HslColor gcol = useCustomColor ? customColor : Parent.Style.Background (Gtk.StateType.Normal);
using (Cairo.Context cr = Gdk.CairoHelper.Create (GdkWindow)) {
cr.NewPath ();
cr.MoveTo (rect.X, rect.Y);
cr.RelLineTo (rect.Width, 0);
cr.RelLineTo (0, rect.Height);
cr.RelLineTo (-rect.Width, 0);
cr.RelLineTo (0, -rect.Height);
cr.ClosePath ();
Cairo.Gradient pat = new Cairo.LinearGradient (rect.X, rect.Y, rect.X, rect.Y + rect.Height - 1);
Cairo.Color color1 = gcol;
pat.AddColorStop (0, color1);
gcol.L -= 0.1;
if (gcol.L < 0) gcol.L = 0;
pat.AddColorStop (1, gcol);
cr.Pattern = pat;
cr.FillPreserve ();
}
}
bool res = base.OnExposeEvent (evnt);
Gdk.GC borderColor = Parent.Style.DarkGC (Gtk.StateType.Normal);
rect = Allocation;
for (int n=0; n<topMargin; n++)
GdkWindow.DrawLine (borderColor, rect.X, rect.Y + n, rect.Left + rect.Width - 1, rect.Y + n);
for (int n=0; n<bottomMargin; n++)
GdkWindow.DrawLine (borderColor, rect.X, rect.Top + rect.Height - 1 - n, rect.Left + rect.Width - 1, rect.Top + rect.Height - 1 - n);
for (int n=0; n<leftMargin; n++)
GdkWindow.DrawLine (borderColor, rect.X + n, rect.Y, rect.X + n, rect.Top + rect.Height - 1);
for (int n=0; n<rightMargin; n++)
GdkWindow.DrawLine (borderColor, rect.Left + rect.Width - 1 - n, rect.Y, rect.Left + rect.Width - 1 - n, rect.Top + rect.Height - 1);
return res;
}
}
}
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