340 lines
12 KiB
C#
340 lines
12 KiB
C#
using System;
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using System.Diagnostics;
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using System.Drawing;
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using System.Drawing.Text;
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using System.Reflection;
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using System.Windows.Forms;
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using Examples.Properties;
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namespace Examples
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{
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public partial class ExampleBrowser : Form
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{
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#region Fields
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//PrivateFontCollection font_collection = new PrivateFontCollection();
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bool show_warning = true;
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#endregion
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#region Constructors
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public ExampleBrowser()
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{
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Font = SystemFonts.DialogFont;
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InitializeComponent();
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// Windows 6 (Vista) and higher come with Consolas, a high-quality monospace font. Use that or fallback to
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// the generic monospace font on other systems.
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if (System.Environment.OSVersion.Platform == PlatformID.Win32NT &&
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System.Environment.OSVersion.Version.Major >= 6)
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{
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textBoxOutput.Font = richTextBoxSource.Font = new Font("Consolas", 10.0f, FontStyle.Regular);
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}
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else
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{
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textBoxOutput.Font = richTextBoxSource.Font =
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new Font(FontFamily.GenericMonospace, 10.0f, FontStyle.Regular);
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}
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}
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#endregion
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#region Protected Members
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protected override void OnLoad(EventArgs e)
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{
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base.OnLoad(e);
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Debug.Listeners.Add(new TextBoxTraceListener(textBoxOutput));
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treeViewSamples.TreeViewNodeSorter = new SamplesTreeViewSorter();
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LoadSamplesFromAssembly(Assembly.GetExecutingAssembly());
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}
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protected override void OnShown(EventArgs e)
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{
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if (show_warning)
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{
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MessageBox.Show("The new Sample Browser is not complete. Please report any issues at http://www.opentk.com/project/issues.",
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"Work in Progress", MessageBoxButtons.OK, MessageBoxIcon.Information);
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show_warning = false;
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}
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}
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#endregion
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#region Private Members
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#region Events
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#region TreeView
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private void treeViewSamples_AfterSelect(object sender, TreeViewEventArgs e)
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{
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const string no_docs = "Documentation has not been entered.";
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const string no_source = "Source code has not been entered.";
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if (e.Node.Tag != null && !String.IsNullOrEmpty(((ExampleInfo)e.Node.Tag).Attribute.Documentation))
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{
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string docs = (string)Resources.ResourceManager.GetObject(((ExampleInfo)e.Node.Tag).Attribute.Documentation + "Doc");
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string source = (string)Resources.ResourceManager.GetObject(((ExampleInfo)e.Node.Tag).Attribute.Documentation);
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if (String.IsNullOrEmpty(docs))
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richTextBoxDescription.Text = no_docs;
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else
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richTextBoxDescription.Rtf = docs;
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if (String.IsNullOrEmpty(source))
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richTextBoxSource.Text = no_source;
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else
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richTextBoxSource.Text = source;
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}
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else
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{
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richTextBoxDescription.Text = no_docs;
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richTextBoxSource.Text = no_source;
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}
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}
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private void treeViewSamples_NodeMouseDoubleClick(object sender, TreeNodeMouseClickEventArgs e)
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{
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if (e.Node.Tag != null)
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{
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ActivateNode(e.Node);
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}
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}
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private void treeViewSamples_KeyDown(object sender, KeyEventArgs e)
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{
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// The enter key activates a node (either expands/collapses or executes its sample).
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switch (e.KeyCode)
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{
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case Keys.Enter:
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ActivateNode(treeViewSamples.SelectedNode);
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e.Handled = true;
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e.SuppressKeyPress = true;
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break;
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}
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}
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private void treeViewSamples_MouseDown(object sender, MouseEventArgs e)
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{
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// Make sure that right-clicking a new node will select that node before displaying
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// the context menu. Without this, right-clicking a node does not select it, which
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// is completely disorienting.
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// As a bonus, make any mouse button select the underlying node,
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TreeNode node = treeViewSamples.HitTest(e.Location).Node;
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if (node != null)
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treeViewSamples.SelectedNode = node;
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// Middle click selects and activates a node (either expands/collapses or executes its sample).
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// Right button displays the context menu.
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// All other mouse buttons simply select the underlying node.
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switch (e.Button)
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{
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case MouseButtons.Middle:
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ActivateNode(node);
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break;
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case MouseButtons.Right:
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treeViewSamples.ContextMenuStrip.Show(sender as Control, e.Location);
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break;
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}
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}
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private void treeViewSamples_AfterExpand(object sender, TreeViewEventArgs e)
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{
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foreach (TreeNode child in e.Node.Nodes)
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child.EnsureVisible();
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}
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private void contextMenuStripSamples_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
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{
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switch (e.ClickedItem.Text)
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{
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case "&Run Sample": RunSample(this, (ExampleInfo)treeViewSamples.SelectedNode.Tag); break;
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case "View Description": tabControlSample.SelectedTab = tabDescription; break;
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case "View Source Code": tabControlSample.SelectedTab = tabSource; break;
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}
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}
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#endregion
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#region Description
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private void richTextBoxDescription_MouseDown(object sender, MouseEventArgs e)
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{
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if (e.Button == MouseButtons.Right)
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{
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richTextBoxDescription.ContextMenuStrip.Show(sender as Control, e.X, e.Y);
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}
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}
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private void contextMenuStripDescription_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
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{
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if (e.ClickedItem.Text == "&Copy")
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{
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Clipboard.SetText(richTextBoxDescription.SelectedRtf, TextDataFormat.Rtf);
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}
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}
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#endregion
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#region Source Code
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private void richTextBoxSource_MouseDown(object sender, MouseEventArgs e)
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{
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if (e.Button == MouseButtons.Right)
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{
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richTextBoxSource.ContextMenuStrip.Show(sender as Control, e.X, e.Y);
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}
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}
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private void contextMenuStripSource_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
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{
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if (e.ClickedItem.Text == "&Copy")
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{
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Clipboard.SetText(richTextBoxSource.SelectedText, TextDataFormat.Text);
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}
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}
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#endregion
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#endregion
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#region Actions
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void LoadSamplesFromAssembly(Assembly assembly)
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{
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if (assembly == null)
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throw new ArgumentNullException("assembly");
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Type[] types = assembly.GetTypes();
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foreach (Type type in types)
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{
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object[] attributes = type.GetCustomAttributes(false);
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ExampleAttribute example = null;
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foreach (object attr in attributes)
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{
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if (attr is ExampleAttribute)
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{
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example = (ExampleAttribute)attr;
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if (example.Visible)
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{
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// Add this example to the sample TreeView.
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// First check whether the ExampleCategory exists in the tree (and add it if it doesn't).
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// Then add the example as a child node on this category.
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if (!treeViewSamples.Nodes.ContainsKey(example.Category.ToString()))
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{
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int category_index = GetImageIndexForSample(imageListSampleCategories, example.Category.ToString(), String.Empty);
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treeViewSamples.Nodes.Add(example.Category.ToString(), String.Format("{0} samples", example.Category),
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category_index, category_index);
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}
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int image_index = GetImageIndexForSample(imageListSampleCategories, example.Category.ToString(), example.Subcategory);
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TreeNode node = new TreeNode(example.Title, image_index, image_index);
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node.Name = example.Title;
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node.Tag = new ExampleInfo(type, example);
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treeViewSamples.Nodes[example.Category.ToString()].Nodes.Add(node);
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}
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}
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}
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}
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treeViewSamples.Sort();
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}
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void ActivateNode(TreeNode node)
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{
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if (node == null)
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return;
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if (node.Tag == null)
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{
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if (node.IsExpanded)
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node.Collapse();
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else
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node.Expand();
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}
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else
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{
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tabControlSample.SelectedTab = tabPageOutput;
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textBoxOutput.Clear();
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RunSample(node.TreeView.TopLevelControl, (ExampleInfo)node.Tag);
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}
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}
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static int GetImageIndexForSample(ImageList list, string category, string subcategory)
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{
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if (list == null)
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throw new ArgumentNullException("list");
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if (list.Images.ContainsKey(subcategory.ToString() + ".jpg"))
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return list.Images.IndexOfKey(subcategory.ToString() + ".jpg");
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if (list.Images.ContainsKey(category.ToString() + ".jpg"))
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return list.Images.IndexOfKey(category.ToString() + ".jpg");
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return 0;
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}
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static void RunSample(Control parent, ExampleInfo e)
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{
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if (e == null)
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return;
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MethodInfo main =
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e.Example.GetMethod("Main", BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic) ??
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e.Example.GetMethod("Main", BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic, null, new Type[] { typeof(object), typeof(object) }, null);
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if (main != null)
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{
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try
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{
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if (parent != null)
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{
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parent.Visible = false;
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Application.DoEvents();
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}
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Trace.WriteLine(String.Format("Launching sample: \"{0}\"", e.Attribute.Title));
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Trace.WriteLine(String.Empty);
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main.Invoke(null, null);
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}
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catch (TargetInvocationException expt)
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{
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string ex_info;
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if (expt.InnerException != null)
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ex_info = expt.InnerException.ToString();
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else
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ex_info = expt.ToString();
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MessageBox.Show(ex_info, "An OpenTK example encountered an error.", MessageBoxButtons.OK, MessageBoxIcon.Warning);
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Debug.Print(expt.ToString());
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}
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catch (NullReferenceException expt)
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{
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MessageBox.Show(expt.ToString(), "The Example launcher failed to load the example.", MessageBoxButtons.OK, MessageBoxIcon.Warning);
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}
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finally
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{
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if (parent != null)
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{
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parent.Visible = true;
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Application.DoEvents();
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}
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}
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}
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else
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{
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MessageBox.Show("The selected example does not define a Main method", "Entry point not found", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
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}
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}
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#endregion
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#endregion
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}
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}
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