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2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
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5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
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11  *   http://www.apache.org/licenses/LICENSE-2.0
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13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
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20  *************************************************************/
21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_dbaccess.hxx"
26 
27 #ifndef DBAUI_SCROLLHELPER_HXX
28 #include "ScrollHelper.hxx"
29 #endif
30 #ifndef _TOOLS_DEBUG_HXX
31 #include <tools/debug.hxx>
32 #endif
33 
34 #define LISTBOX_SCROLLING_AREA	12
35 namespace dbaui
36 {
37 DBG_NAME(OScrollHelper)
38 
39 // -----------------------------------------------------------------------------
40 
41 
42     OScrollHelper::OScrollHelper()
43 	{
44         DBG_CTOR(OScrollHelper,NULL);
45 	}
46 	// -----------------------------------------------------------------------------
47 	OScrollHelper::~OScrollHelper()
48 	{
49 
50         DBG_DTOR(OScrollHelper,NULL);
51     }
52 	// -----------------------------------------------------------------------------
53 	void OScrollHelper::scroll(const Point& _rPoint, const Size& _rOutputSize)
54 	{
55 		// Scrolling Areas
56 		Rectangle aScrollArea( Point(0, _rOutputSize.Height() - LISTBOX_SCROLLING_AREA),
57 									 Size(_rOutputSize.Width(), LISTBOX_SCROLLING_AREA) );
58 
59 		Link aToCall;
60 		// if pointer in bottom area begin scroll
61 		if( aScrollArea.IsInside(_rPoint) )
62 			aToCall = m_aUpScroll;
63 		else
64 		{
65 			aScrollArea.SetPos(Point(0,0));
66 			// if pointer in top area begin scroll
67 			if( aScrollArea.IsInside(_rPoint) )
68 				aToCall = m_aDownScroll;
69 		}
70 		if ( aToCall.IsSet() )
71 			aToCall.Call( NULL );
72 	}
73 	// -----------------------------------------------------------------------------
74 }
75 // -----------------------------------------------------------------------------
76 
77 
78