public PasteCommand( ITextEditingCommandController <TContext> controller, TextPosition position, string text) : base(true, false) { // Split the clipboard text into different lines. string[] lines = text.Split('\n'); // If we have only one line, then we just insert the command. if (lines.Length == 1) { IInsertTextCommand <TContext> singleCommand = controller.CreateInsertTextCommand(position, text); singleCommand.UpdateTextPosition = DoTypes.All; Commands.Add(singleCommand); return; } // Start by splitting the first paragraph at that position. var splitCommand = new SplitParagraphCommand <TContext>(controller, position); Commands.Add(splitCommand); // The first line is inserted into at the position. IInsertTextCommand <TContext> firstCommand = controller.CreateInsertTextCommand(position, lines[0]); firstCommand.UpdateTextPosition = DoTypes.All; Commands.Add(firstCommand); // Loop through and add all the blank lines we'll need for the paste // operation. for (int i = 2; i < lines.Length; i++) { IInsertLineCommand <TContext> lineCommand = controller.CreateInsertLineCommand((int)position.LinePosition + 1); Commands.Add(lineCommand); } // For every other line, we add the line and paste it. for (int i = 1; i < lines.Length; i++) { IInsertTextCommand <TContext> textCommand = controller.CreateInsertTextCommand( new TextPosition((int)position.LinePosition + i, CharacterPosition.Begin), lines[i]); textCommand.UpdateTextPosition = DoTypes.DoAndRedo; Commands.Add(textCommand); } }
public SplitParagraphCommand( ITextEditingCommandController <TContext> controller, TextPosition position) : base(true, false) { // The split paragraph consists of inserting a new line, pasting the // text to the right of the position into that one, and then removing // the text from the current line. var line = (int)position.LinePosition; // Start by inserting the new line. IInsertLineCommand <TContext> insertLineCommand = controller.CreateInsertLineCommand((int)position.LinePosition + 1); insertLineCommand.UpdateTextPosition = DoTypes.All; // Insert the text from the line into the nmew line. IInsertTextFromTextRangeCommand <TContext> insertTextCommand = controller.CreateInsertTextFromTextRangeCommand( new TextPosition((line + 1), CharacterPosition.Begin), new SingleLineTextRange( position.LinePosition, position.CharacterPosition, CharacterPosition.End)); // Delete the text from the current line. IDeleteTextCommand <TContext> deleteTextCommand = controller.CreateDeleteTextCommand( new SingleLineTextRange( line, position.CharacterPosition, CharacterPosition.End)); // Add the commands into the composite and indicate that the whitespace // command controls where the text position will end up. Commands.Add(insertLineCommand); Commands.Add(insertTextCommand); Commands.Add(deleteTextCommand); }