01: /*
02: * Copyright (c) 2004 JETA Software, Inc. All rights reserved.
03: *
04: * Redistribution and use in source and binary forms, with or without modification,
05: * are permitted provided that the following conditions are met:
06: *
07: * o Redistributions of source code must retain the above copyright notice,
08: * this list of conditions and the following disclaimer.
09: *
10: * o Redistributions in binary form must reproduce the above copyright notice,
11: * this list of conditions and the following disclaimer in the documentation
12: * and/or other materials provided with the distribution.
13: *
14: * o Neither the name of JETA Software nor the names of its contributors may
15: * be used to endorse or promote products derived from this software without
16: * specific prior written permission.
17: *
18: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21: * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
22: * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23: * INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
25: * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26: * INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28: */
29:
30: package com.jeta.forms.gui.components;
31:
32: import java.awt.Component;
33:
34: import com.jeta.forms.gui.common.FormException;
35: import com.jeta.forms.gui.form.GridComponent;
36: import com.jeta.forms.gui.form.GridView;
37:
38: /**
39: * Class that creates an 'Empty' component in the grid in design mode. This is
40: * for grid cells that don't have a component. We provide a empty JETABean
41: * instead of no component in that cell because if we did not the grid lines
42: * would be on top of one another if a row or column is completely empty.
43: *
44: * @author Jeff Tassin
45: */
46: public class EmptyComponentFactory extends StandardComponentFactory {
47:
48: /**
49: * Creates an <code>EmptyComponentFactory</code> instance.
50: */
51: public EmptyComponentFactory(ComponentSource compsrc) {
52: super (compsrc);
53: }
54:
55: /**
56: * ComponentFactory implementation. Creates a GridComponent with an null
57: * child.
58: *
59: * @param compName
60: * the name of the component.
61: * @param view
62: * the parent view for the new grid component. This value is
63: * needed mainly for installing event listeners to the
64: * GridComponent in design mode.
65: */
66: public GridComponent createComponent(String compName, GridView view)
67: throws FormException {
68: return super .createComponent((Component) null, view);
69: }
70: }
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