Show History for File / Selection dialog

Use this dialog to explore changes to a file, or selection. There are two views in this dialog:

• History view in the left-hand part

• Differences view in the right-hand part

History view

This view shows the list of revisions (states) of a file, with the date and time when the revision was stored. Some of the revisions are supplied with tags and labels.

Revisions are tagged automatically, for example, on opening a project, committing changes, or performing test. You can also set your own labels.

Item	Description
	Click this button to revert the selected action.
	Click this button to create a patch based on the selected local version.
	Click this button to open the corresponding help topic.

Differences view

The Differences view is a powerful editor that supports basic search and replace, undo/redo actions, and code completion.

If a revision is selected in the History view, the left-hand pane of the Differences view shows this read-only revision, with the differences against the current revision which is displayed in the right-hand pane. The current revision can be edited.

Item	Shortcut	Description
	Ctrl+C	Click this button to copy the current line or the selected fragment to the clipboard.
or	F7 or Shift+F7	Use these buttons to move to the next or previous difference.
Ignore whitespace		Use this drop-down list to define how the differences viewer should treat white spaces in the text. Do not ignore - when this option is selected, white spaces are considered unimportant and the differences are highlighted. Leading and Trailing - select this option to have differences in the end and in the beginning of a line ignored. All - when this option is selected, white spaces are considered unimportant regardless of their location in the source code.
,  or		Use these buttons to apply differences.
Legend		This area shows summary information about the encountered differences: the number of differences found and the color map.