public ChangeBlockTypeCommand(
BlockKey blockKey,
BlockType blockType)
: base(blockKey)
{
BlockType = blockType;
}
/// <summary>
/// Initializes a new instance of the <see cref="Block" /> class.
/// </summary>
/// <param name="blocks">The ownerCollection.</param>
/// <param name="initialBlockType">Initial type of the block.</param>
/// <param name="text">The text.</param>
public Block(
ProjectBlockCollection blocks,
BlockType initialBlockType,
string text = "")
{
BlockKey = BlockKey.GetNext();
Blocks = blocks;
blockType = initialBlockType;
this.text = text;
Properties = new PropertiesDictionary();
TextSpans = new TextSpanCollection();
accessLock = new ReaderWriterLockSlim(LockRecursionPolicy.NoRecursion);
previouslyAnalyzedPlugins = new HashSet<IBlockAnalyzerProjectPlugin>();
}
protected override void Do(
BlockCommandContext context,
Block block)
{
// We need to keep track of the previous block type so we can change
// it back with Undo.
previousBlockType = block.BlockType;
// Set the block type.
block.SetBlockType(BlockType);
// Save the position from this command.
if (UpdateTextPosition.HasFlag(DoTypes.Do))
{
context.Position = new BlockPosition(BlockKey, 0);
}
}
/// <summary>
/// Sets the type of the block and fires the events to update the internal
/// structure. If the block type is identical, no events are fired.
/// </summary>
/// <param name="newBlockType">New type of the block.</param>
public void SetBlockType(BlockType newBlockType)
{
// Make sure we have a sane state.
if (newBlockType == null)
{
throw new ArgumentNullException("newBlockType");
}
if (Blocks.Project != newBlockType.Supervisor.Project)
{
throw new InvalidOperationException(
"Cannot assign a block type with a different Project than the block's Project.");
}
// We only do things if we are changing the block type.
bool changed = blockType != newBlockType;
if (changed)
{
// Assign the new block type.
BlockType oldBlockType = blockType;
blockType = newBlockType;
// Raise an event that the block type had changed. This is done
// before the plugins are called because they may make additional
// changes and we want to avoid recursion.
Project.Blocks.RaiseBlockTypeChanged(this, oldBlockType);
}
}
public void ChangeBlockType(
Block block,
BlockType oldBlockType)
{
// We need a write lock on the blocks while we make this change.
using (block.AcquireBlockLock(RequestLock.Write))
{
// Report what we're doing if we have logging on.
Log("ChangeBlockType: {0}: Old Type {1}", block, oldBlockType);
//// Figure out the deltas for this block.
//var deltas = new Dictionary<HierarchicalPath, int>();
//deltas[WordCounterPathUtility.GetPath(oldBlockType)] = -1;
//deltas[WordCounterPathUtility.GetPath(block.BlockType)] = 1;
//// Update the parent types.
//UpdateDeltas(block, deltas);
//UpdateDeltas(block.Project, deltas);
}
}
/// <summary>
/// Raises an event that a block's type had changed.
/// </summary>
/// <param name="block"></param>
/// <param name="oldBlockType"></param>
public void RaiseBlockTypeChanged(
Block block,
BlockType oldBlockType)
{
EventHandler<BlockEventArgs> listeners = BlockTypeChanged;
if (listeners != null)
{
var args = new BlockEventArgs(block);
listeners(this, args);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="BlockTypeSupervisor"/> class.
/// </summary>
/// <param name="project">The project.</param>
public BlockTypeSupervisor(Project project)
{
// Save the project so we can associated the Supervisor with its project.
Project = project;
// Create the standard project block types.
var paragraph = new BlockType(this)
{
Name = ParagraphName,
IsSystem = true,
IsStructural = false,
};
var story = new BlockType(this)
{
Name = StoryName,
IsSystem = true,
IsStructural = true,
};
var book = new BlockType(this)
{
Name = BookName,
IsSystem = true,
IsStructural = true,
};
var chapter = new BlockType(this)
{
Name = ChapterName,
IsSystem = true,
IsStructural = true,
};
var scene = new BlockType(this)
{
Name = SceneName,
IsSystem = true,
IsStructural = true,
};
var epigraph = new BlockType(this)
{
Name = EpigraphName,
IsSystem = true,
IsStructural = true,
};
var attribution = new BlockType(this)
{
Name = EpigraphAttributionName,
IsSystem = true,
IsStructural = true,
};
// Initialize the collection of block types.
BlockTypes = new Dictionary<string, BlockType>();
BlockTypes[ParagraphName] = paragraph;
BlockTypes[StoryName] = story;
BlockTypes[BookName] = book;
BlockTypes[ChapterName] = chapter;
BlockTypes[SceneName] = scene;
BlockTypes[EpigraphName] = epigraph;
BlockTypes[EpigraphAttributionName] = attribution;
}
/// <summary>
/// Adds the specified block type to the collection.
/// </summary>
/// <param name="blockTypeName">Name of the block type.</param>
/// <param name="isStructural">if set to <c>true</c> [is structural].</param>
/// <param name="isSystem">if set to <c>true</c> [is system].</param>
public void Add(
string blockTypeName,
bool isStructural,
bool isSystem = false)
{
var blockType = new BlockType(this)
{
Name = blockTypeName,
IsStructural = isStructural,
IsSystem = isSystem
};
BlockTypes.Add(blockTypeName, blockType);
}
/// <summary>
/// Gets the child structure associated with a given block type.
/// </summary>
/// <param name="blockType">Type of the block.</param>
/// <returns>A child structure of the given type.</returns>
/// <exception cref="System.IndexOutOfRangeException">Cannot find child block type: + blockType</exception>
public BlockStructure GetChildStructure(BlockType blockType)
{
foreach (BlockStructure childStructure in
ChildStructures.Where(
childStructure => childStructure.BlockType == blockType))
{
return childStructure;
}
throw new IndexOutOfRangeException(
"Cannot find child block type: " + blockType);
}
/// <summary>
/// Determines whether this instance contains a child structure of the given block type.
/// </summary>
/// <param name="blockType">Type of the block.</param>
/// <returns>
/// <c>true</c> if [contains child structure] [the specified block type]; otherwise, <c>false</c>.
/// </returns>
public bool ContainsChildStructure(BlockType blockType)
{
return
ChildStructures.Any(childStructure => childStructure.BlockType == blockType);
}
