public static void GetBeginAndEndCharacterIndices(
this SingleLineTextRange range,
ProjectBlockCollection blocks,
out int blockIndex,
out int sourceBegin,
out int sourceEnd,
out string text)
{
using (blocks.AcquireLock(RequestLock.Read))
{
// Start by getting the block based on the index.
Block block;
blockIndex = range.LinePosition.GetLineIndex(blocks.Count);
using (
blocks.AcquireBlockLock(
RequestLock.Read, RequestLock.Read, blockIndex, out block))
{
// Get the text and calculate the character indicies.
text = block.Text;
range.GetBeginAndEndCharacterIndices(text, out sourceBegin, out sourceEnd);
}
}
}
/// <summary>
/// Writes out the project file to a given directory.
/// </summary>
/// <param name="directory">The directory to save the file.</param>
public void Save(DirectoryInfo directory)
{
// Set up the project macros we'll be expanding.
ProjectMacros macros = SetupMacros(directory);
// Validate the state.
string projectFilename = macros.ExpandMacros("{ProjectFilename}");
if (string.IsNullOrWhiteSpace(projectFilename))
{
throw new InvalidOperationException(
"Project filename is not defined in Settings property.");
}
// We need a write lock on the blocks to avoid changes. This also prevents
// any background tasks from modifying the blocks during the save process.
ProjectBlockCollection blocks = Project.Blocks;
using (blocks.AcquireLock(RequestLock.Write))
{
// Create a new project writer and write out the results.
var projectWriter = new FilesystemPersistenceProjectWriter(
Project, Settings, macros);
var projectFile = new FileInfo(projectFilename);
projectWriter.Write(projectFile);
}
}
public void Undo(BlockCommandContext context)
{
// Since we're making chanegs to the list, we need a write lock.
ProjectBlockCollection blocks = context.Blocks;
using (blocks.AcquireLock(RequestLock.Write))
{
// Go through all the blocks in the project.
foreach (Block block in blocks)
{
if (Changes.ContainsKey(block.BlockKey))
{
// Revert the type of this block.
BlockType blockType = previousBlockTypes[block.BlockKey];
block.SetBlockType(blockType);
}
}
}
}
public void Do(BlockCommandContext context)
{
// Since we're making chanegs to the list, we need a write lock.
ProjectBlockCollection blocks = context.Blocks;
using (blocks.AcquireLock(RequestLock.Write))
{
// Clear out the undo list since we'll be rebuilding it.
previousBlockTypes.Clear();
// Go through all the blocks in the project.
foreach (Block block in blocks)
{
if (Changes.ContainsKey(block.BlockKey))
{
BlockType blockType = Changes[block.BlockKey];
BlockType existingType = block.BlockType;
previousBlockTypes[block.BlockKey] = existingType;
block.SetBlockType(blockType);
}
}
}
}
