Coverage Report - palmed.edit.selection.NewLineInsertion

Classes in this Package	Line Coverage	Branch Coverage	Complexity
NewLineInsertion	96%	100%	1.8;1,8

1		/**
2		* Redistribution and use in source and binary forms, with or without
3		* modification, are permitted provided that the following conditions are
4		* met :
5		*
6		* . Redistributions of source code must retain the above copyright
7		* notice, this list of conditions and the following disclaimer.
8		*
9		* . Redistributions in binary form must reproduce the above copyright
10		* notice, this list of conditions and the following disclaimer in the
11		* documentation and/or other materials provided with the distribution.
12		*
13		* . The name of the author may not be used to endorse or promote products
14		* derived from this software without specific prior written permission.
15		*
16		* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17		* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18		* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19		* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20		* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21		* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22		* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23		* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24		* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25		* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26		* POSSIBILITY OF SUCH DAMAGE.
27		*
28		* $Id$
29		*/
30
31		package palmed.edit.selection;
32
33		import palmed.edit.text.IText;
34		import palmed.edit.util.Coordinate;
35
36		/**
37		* This class implements an action to replace the selection (if any) with a new line.
38		*
39		* @author Mathieu Champlon
40		* @version $Revision$ $Date$
41		*/
42		public final class NewLineInsertion extends AbstractAction
43		{
44		/**
45		* The selection.
46		*/
47		private final ISelection selection_;
48		/**
49		* The text.
50		*/
51		private final IText text_;
52		/**
53		* The insertion position.
54		*/
55		private final Coordinate insertion_;
56		/**
57		* The total number of inserted characters.
58		*/
59		private int count_;
60
61		/**
62		* Create an enter action.
63		*
64		* @param selection the selection
65		* @param text the text
66		* @param insertion the insertion position
67		*/
68		public NewLineInsertion( final ISelection selection, final IText text, final Coordinate insertion )
69		{
70	60	super( selection );
71	60	selection_ = selection;
72	60	text_ = text;
73	60	insertion_ = insertion;
74	60	count_ = 1;
75	60	}
76
77		/**
78		* {@inheritDoc}
79		*/
80		protected void onPerform()
81		{
82	60	backupData();
83	60	selection_.delete();
84	60	text_.insertNewLine( insertion_ );
85	60	selection_.forward();
86	60	selection_.clear();
87	60	}
88
89		/**
90		* {@inheritDoc}
91		*/
92		protected boolean onUndo()
93		{
94	80	for( int i = 0; i < count_; ++i )
95	50	selection_.backward();
96	30	restoreData();
97	30	return true;
98		}
99
100		/**
101		* {@inheritDoc}
102		*/
103		protected boolean onRedo()
104		{
105	15	selection_.delete();
106	40	for( int i = 0; i < count_; ++i )
107		{
108	25	text_.insertNewLine( insertion_ );
109	25	selection_.forward();
110		}
111	15	return false;
112		}
113
114		/**
115		* {@inheritDoc}
116		*/
117		public boolean merge( final IAction action )
118		{
119	20	if( !(action instanceof NewLineInsertion) )
120	0	return false;
121	20	overwriteFinalState( (NewLineInsertion)action );
122	20	++count_;
123	20	return true;
124		}
125		}