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Fixed the remaining issues in the ContainerListView control; minor documentation improvements

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git-svn-id: file:///srv/devel/repo-conversion/nuwi@28 d2e56fa2-650e-0410-a79f-9358c0239efd
This commit is contained in:
Markus Ewald 2009-11-03 19:41:14 +00:00
parent 985f2622aa
commit 9a5252f461
6 changed files with 290 additions and 65 deletions
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12
Nuclex.Windows.Forms.csproj
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@ -1,4 +1,4 @@
<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="3.5">
<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="3.5">
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
@ -53,6 +53,10 @@
<DocumentationFile>Documents\Nuclex.Windows.Forms.xml</DocumentationFile>
</PropertyGroup>
<ItemGroup>
<Reference Include="nunit.framework, Version=2.5.0.9122, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
<SpecificVersion>False</SpecificVersion>
<HintPath>..\References\nunit\net-2.0\framework\nunit.framework.dll</HintPath>
</Reference>
<Reference Include="System" />
<Reference Include="System.Data" />
<Reference Include="System.Deployment" />
@ -72,12 +76,18 @@
<Compile Include="Source\AsyncProgressBar\AsyncProgressBar.Designer.cs">
<DependentUpon>AsyncProgressBar.cs</DependentUpon>
</Compile>
<Compile Include="Source\AsyncProgressBar\AsyncProgressBar.Test.cs">
<DependentUpon>AsyncProgressBar.cs</DependentUpon>
</Compile>
<Compile Include="Source\ContainerListView\ContainerListView.cs">
<SubType>Component</SubType>
</Compile>
<Compile Include="Source\ContainerListView\ContainerListView.Designer.cs">
<DependentUpon>ContainerListView.cs</DependentUpon>
</Compile>
<Compile Include="Source\ContainerListView\ContainerListView.Test.cs">
<DependentUpon>ContainerListView.cs</DependentUpon>
</Compile>
<Compile Include="Source\ContainerListView\ListViewEmbeddedControl.cs" />
<Compile Include="Source\EmbeddedControlCollection.cs" />
<Compile Include="Source\ProgressReporter\ProgressReporterForm.cs">

71
Source/AsyncProgressBar/AsyncProgressBar.Test.cs Normal file
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@ -0,0 +1,71 @@
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
#if UNITTEST
using System;
using System.IO;
using System.Windows.Forms;
using NUnit.Framework;
using Nuclex.Support;
namespace Nuclex.Windows.Forms {
/// <summary>Unit Test for the asynchronously updating progress bar</summary>
[TestFixture]
public class AsyncProgressBarTest {
/// <summary>
/// Verifies that asynchronous progress assignment is working
/// </summary>
[Test]
public void TestProgressAssignment() {
using(AsyncProgressBar progressBar = new AsyncProgressBar()) {
// Let the control create its window handle
progressBar.CreateControl();
progressBar.Minimum = 0;
progressBar.Maximum = 100;
Assert.AreEqual(0, progressBar.Value);
// Assign the new value. This will be done asynchronously, so we call
// Application.DoEvents() to execute the message pump once, guaranteeing
// that the call will have been executed after Application.DoEvents() returns.
progressBar.AsyncSetValue(0.33f);
Application.DoEvents();
Assert.AreEqual(33, progressBar.Value);
progressBar.AsyncSetValue(0.66f);
Application.DoEvents();
Assert.AreEqual(66, progressBar.Value);
}
}
}
} // namespace Nuclex.Windows.Forms
#endif // UNITTEST

6
Source/AsyncProgressBar/AsyncProgressBar.cs
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@ -45,9 +45,9 @@ namespace Nuclex.Windows.Forms {
private void progressBarDisposed(object sender, EventArgs arguments) {
// CHECK: This method is only called on an explicit Dispose() of the control.
// Microsoft officially states that it's allowed to call Control.BeginInvoke()
// without calling Control.EndInvoke(), so this code is quite correct,
// but is it also clean? :>
// It is legal to call Control.BeginInvoke() without calling Control.EndInvoke(),
// so the code is quite correct even if no Dispose() occurs, but is it also clean?
// http://www.interact-sw.co.uk/iangblog/2005/05/16/endinvokerequired
// Since this has to occur in the UI thread, there's no way that updateProgress()
// could be executing just now. But the final call to updateProgress() will not

83
Source/ContainerListView/ContainerListView.Test.cs Normal file
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@ -0,0 +1,83 @@
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2009 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
#if UNITTEST
using System;
using System.IO;
using System.Windows.Forms;
using NUnit.Framework;
using Nuclex.Support;
namespace Nuclex.Windows.Forms {
/// <summary>Unit Test for the control container list view</summary>
[TestFixture]
public class ContainerListViewTest {
/// <summary>
/// Verifies that the asynchronous progress bar's constructor is working
/// </summary>
[Test]
public void TestConstructor() {
using(ContainerListView listView = new ContainerListView()) {
// Let the control create its window handle
listView.CreateControl();
listView.Columns.Add("Numeric");
listView.Columns.Add("Spelled");
listView.Columns.Add("Nonsense");
addRow(listView, "1", "One");
addRow(listView, "2", "Two");
addRow(listView, "3", "Three");
using(CheckBox checkBox = new CheckBox()) {
listView.EmbeddedControls.Add(new ListViewEmbeddedControl(checkBox, 2, 0));
listView.EmbeddedControls.Clear();
listView.Refresh();
ListViewEmbeddedControl embeddedControl = new ListViewEmbeddedControl(
checkBox, 2, 0
);
listView.EmbeddedControls.Add(embeddedControl);
listView.EmbeddedControls.Remove(embeddedControl);
listView.Refresh();
}
}
}
/// <summary>Adds a row to a control container list view</summary>
/// <param name="listView">List view control the row will be added to</param>
/// <param name="columns">Values that will appear in the individual columns</param>
private void addRow(ContainerListView listView, params string[] columns) {
listView.Items.Add(new ListViewItem(columns));
}
}
} // namespace Nuclex.Windows.Forms
#endif // UNITTEST

153
Source/ContainerListView/ContainerListView.cs
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@ -33,15 +33,29 @@ namespace Nuclex.Windows.Forms {
/// <summary>ListView allowing for other controls to be embedded in its cells</summary>
/// <remarks>
/// There basically were two possible design choices: Provide a specialized
/// ListViewSubItem that carries a Control instead of a string or manage the
/// embedded controls seperate of the ListView's items. The first option
/// would require a complete rewrite of the ListViewItem class and its related
/// support classes, all of which are surprisingly large and complex. Thus,
/// I chose the less clean but more doable latter option.
/// <para>
/// There basically were two possible design choices: Provide a specialized
/// ListViewSubItem that carries a Control instead of a string or manage the
/// embedded controls seperate of the ListView's items.
/// </para>
/// <para>
/// The first option requires a complete rewrite of the ListViewItem class
/// and its related support classes, all of which are surprisingly large and
/// complex. Thus, I chose the less clean but more doable latter option.
/// </para>
/// <para>
/// This control is useful for simple item lists where you want to provide
/// a combobox, checkbox or other control to the user for a certain column.
/// It will not perform well for lists with hundreds of items since it
/// requires a control to be created per row and management of the embedded
/// controls is designed for limited usage.
/// </para>
/// </remarks>
public partial class ContainerListView : System.Windows.Forms.ListView {
/// <summary>Message sent to a control to let it paint itself</summary>
private const int WM_PAINT = 0x000F;
/// <summary>Initializes a new ContainerListView</summary>
public ContainerListView() {
this.embeddedControlClickedDelegate = new EventHandler(embeddedControlClicked);
@ -57,7 +71,86 @@ namespace Nuclex.Windows.Forms {
InitializeComponent();
base.View = View.Details;
base.AllowColumnReorder = false;
this.columnHeaderHeight = Font.Height;
}
/// <summary>Controls being embedded in the ListView</summary>
public ICollection<ListViewEmbeddedControl> EmbeddedControls {
get { return this.embeddedControls; }
}
/// <summary>Updates the controls embeded into the list view</summary>
public void UpdateEmbeddedControls() {
if(View != View.Details) {
for(int index = 0; index < this.embeddedControls.Count; ++index) {
this.embeddedControls[index].Control.Visible = false;
}
} else {
for(int index = 0; index < this.embeddedControls.Count; ++index) {
ListViewEmbeddedControl embeddedControl = this.embeddedControls[index];
Rectangle cellBounds = this.GetSubItemBounds(
Items[embeddedControl.Row], embeddedControl.Column
);
bool intersectsColumnHeader =
(base.HeaderStyle != ColumnHeaderStyle.None) &&
(cellBounds.Top < base.Font.Height);
embeddedControl.Control.Visible = !intersectsColumnHeader;
embeddedControl.Control.Bounds = cellBounds;
}
}
}
/// <summary>Calculates the boundaries of a cell in the list view</summary>
/// <param name="item">Item in the list view from which to calculate the cell</param>
/// <param name="subItem">Index der cell whose boundaries to calculate</param>
/// <returns>The boundaries of the specified list view cell</returns>
/// <exception cref="IndexOutOfRangeException">
/// When the specified sub item index is not in the range of valid sub items
/// </exception>
protected Rectangle GetSubItemBounds(ListViewItem item, int subItem) {
int[] order = GetColumnOrder();
if(order == null) // No Columns
return Rectangle.Empty;
if(subItem >= order.Length)
throw new IndexOutOfRangeException("SubItem " + subItem + " out of range");
// Determine the border of the entire ListViewItem, including all sub items
Rectangle itemBounds = item.GetBounds(ItemBoundsPortion.Entire);
int subItemX = itemBounds.Left;
// Find the horizontal position of the sub item. Because the column order can vary,
// we need to use Columns[order[i]] instead of simply doing Columns[i] here!
ColumnHeader columnHeader;
int i;
for(i = 0; i < order.Length; ++i) {
columnHeader = this.Columns[order[i]];
if(columnHeader.Index == subItem)
break;
subItemX += columnHeader.Width;
}
return new Rectangle(
subItemX, itemBounds.Top, this.Columns[order[i]].Width, itemBounds.Height
);
}
/// <summary>Responds to window messages sent by the operating system</summary>
/// <param name="message">Window message that will be processed</param>
protected override void WndProc(ref Message message) {
switch(message.Msg) {
case WM_PAINT: {
UpdateEmbeddedControls();
break;
}
}
base.WndProc(ref message);
}
/// <summary>Called when the list of embedded controls has been cleared</summary>
@ -82,8 +175,7 @@ namespace Nuclex.Windows.Forms {
/// Event arguments providing a reference to the removed control
/// </param>
private void embeddedControlAdded(
object sender,
ItemEventArgs<ListViewEmbeddedControl> arguments
object sender, ItemEventArgs<ListViewEmbeddedControl> arguments
) {
arguments.Item.Control.Click += this.embeddedControlClickedDelegate;
this.Controls.Add(arguments.Item.Control);
@ -95,8 +187,7 @@ namespace Nuclex.Windows.Forms {
/// Event arguments providing a reference to the added control
/// </param>
private void embeddedControlRemoved(
object sender,
ItemEventArgs<ListViewEmbeddedControl> arguments
object sender, ItemEventArgs<ListViewEmbeddedControl> arguments
) {
if(this.Controls.Contains(arguments.Item.Control)) {
arguments.Item.Control.Click -= this.embeddedControlClickedDelegate;
@ -125,44 +216,6 @@ namespace Nuclex.Windows.Forms {
}
}
/// <summary>Calculates the boundaries of a cell in the list view</summary>
/// <param name="item">Item in the list view from which to calculate the cell</param>
/// <param name="subItem">Index der cell whose boundaries to calculate</param>
/// <returns>The boundaries of the specified list view cell</returns>
/// <exception cref="IndexOutOfRangeException">
/// When the specified sub item index is not in the range of valid sub items
/// </exception>
protected Rectangle GetSubItemBounds(ListViewItem item, int subItem) {
int[] order = GetColumnOrder();
if(order == null) // No Columns
return Rectangle.Empty;
if(subItem >= order.Length)
throw new IndexOutOfRangeException("SubItem " + subItem + " out of range");
// Determine the border of the entire ListViewItem, including all sub items
Rectangle itemBounds = item.GetBounds(ItemBoundsPortion.Entire);
int subItemX = itemBounds.Left;
// Find the horizontal position of the sub item. Because the column order can vary,
// we need to use Columns[order[i]] instead of simply doing Columns[i] here!
ColumnHeader columnHeader;
int i;
for(i = 0; i < order.Length; ++i) {
columnHeader = this.Columns[order[i]];
if(columnHeader.Index == subItem)
break;
subItemX += columnHeader.Width;
}
return new Rectangle(
subItemX, itemBounds.Top, this.Columns[order[i]].Width, itemBounds.Height
);
}
/// <summary>Obtains the current column order of the list</summary>
/// <returns>An array indicating the order of the list's columns</returns>
private int[] GetColumnOrder() {
@ -174,6 +227,8 @@ namespace Nuclex.Windows.Forms {
return order;
}
/// <summary>Height of the list view's column header</summary>
private int columnHeaderHeight;
/// <summary>Event handler for when embedded controls are clicked on</summary>
private EventHandler embeddedControlClickedDelegate;
/// <summary>Controls being embedded in this ListView</summary>

28
Source/ProgressReporter/ProgressReporterForm.cs
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@ -17,18 +17,24 @@ namespace Nuclex.Windows.Forms {
/// window during a modal asynchronous processes.
/// </summary>
/// <example>
/// class Test : Nuclex.Support.Scheduling.ThreadOperation {
/// static void Main() {
/// Test myTest = new Test();
/// myTest.Begin();
/// Nuclex.Windows.Forms.ProgressReporterForm.Track(myTest);
/// myTest.End();
/// <code>
/// class Test : Nuclex.Support.Scheduling.ThreadOperation {
///
/// static void Main() {
/// Test myTest = new Test();
/// myTest.Begin();
/// Nuclex.Windows.Forms.ProgressReporterForm.Track(myTest);
/// myTest.End();
/// }
///
/// protected override void Execute() {
/// for(int i = 0; i &lt; 10000000; ++i) {
/// OnAsyncProgressUpdated((float)i / 10000000.0f);
/// }
/// }
///
/// }
/// protected override void Execute() {
/// for(int i = 0; i &lt; 10000000; ++i)
/// OnAsyncProgressUpdated((float)i / 10000000.0f);
/// }
/// }
/// </code>
/// </example>
public partial class ProgressReporterForm : Form {