X-Git-Url: http://secure.phpeclipse.com diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/TypingRun.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/TypingRun.java new file mode 100644 index 0000000..6a2cd02 --- /dev/null +++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/TypingRun.java @@ -0,0 +1,109 @@ +/******************************************************************************* + * Copyright (c) 2000, 2003 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Common Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/cpl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +package net.sourceforge.phpdt.internal.ui.text; + +/** + * Describes a run of similar typing changes. + *
+ * XXX to be extended with further information, e.g. offset, length, and content + * of the run. + *
+ * + * @since 3.0 + */ +public final class TypingRun { + /** + * A change of typeDELETE
deletes one single character
+ * (through delete or backspace or empty paste).
+ */
+ public static final ChangeType DELETE = new ChangeType(true, "DELETE"); //$NON-NLS-1$
+
+ /**
+ * A change of type INSERT
inserts one single character
+ * (normal typing).
+ */
+ public static final ChangeType INSERT = new ChangeType(true, "INSERT"); //$NON-NLS-1$
+
+ /**
+ * A change of type NO_CHANGE
does not change anything.
+ */
+ public static final ChangeType NO_CHANGE = new ChangeType(false,
+ "NO_CHANGE"); //$NON-NLS-1$
+
+ /**
+ * A change of type OVERTYPE
replaces one single character
+ * (overwrite mode, pasting a single character).
+ */
+ public static final ChangeType OVERTYPE = new ChangeType(true, "OVERTYPE"); //$NON-NLS-1$
+
+ /**
+ * A change of type SELECTION
does not change text, but
+ * changes the focus, or selection. Such a change ends all typing runs.
+ */
+ public static final ChangeType SELECTION = new ChangeType(false,
+ "SELECTION"); //$NON-NLS-1$
+
+ /**
+ * A change of type UNKNOWN
modifies text in an unspecified
+ * way. An example is pasting more than one character, or deleting an entire
+ * selection, or reverting a file. Such a change ends all typing runs and
+ * cannot form a typing run with any other change, including a change of
+ * type UNKNOWN
.
+ */
+ public static final ChangeType UNKNOWN = new ChangeType(true, "UNKNOWN"); //$NON-NLS-1$
+
+ /**
+ * Enumeration of change types.
+ *
+ * @since 3.0
+ */
+ public static final class ChangeType {
+ private final boolean fIsModification;
+
+ private final String fName;
+
+ /** Private ctor for type safe enumeration. */
+ private ChangeType(boolean isRunPart, String name) {
+ fIsModification = isRunPart;
+ fName = name;
+ }
+
+ /**
+ * Returns true
if changes of this type modify text.
+ *
+ * @return true
if changes of this type modify text,
+ * false
otherwise
+ */
+ boolean isModification() {
+ return fIsModification;
+ }
+
+ /*
+ * @see java.lang.Object#toString()
+ */
+ public String toString() {
+ return fName;
+ }
+ }
+
+ /**
+ * Creates a new run.
+ *
+ * @param type
+ * the type of the run
+ */
+ TypingRun(ChangeType type) {
+ this.type = type;
+ }
+
+ /** The change type of this run. */
+ public final ChangeType type;
+}
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