1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
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
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
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.
19 *
20 *************************************************************/
21
22
23
24 #include "bin.hxx"
25
26 #include <sal/macros.h>
27
28 namespace layoutimpl
29 {
30
31 using namespace css;
32
33 /* Bin */
34
Bin()35 Bin::Bin() : Container()
36 {
37 }
38
39 void SAL_CALL
addChild(const uno::Reference<awt::XLayoutConstrains> & xChild)40 Bin::addChild( const uno::Reference< awt::XLayoutConstrains >& xChild )
41 {
42 if ( mxChild.is() )
43 throw awt::MaxChildrenException();
44 if ( xChild.is() )
45 {
46 mxChild = xChild;
47 setChildParent( xChild );
48 queueResize();
49 }
50 }
51
52 void SAL_CALL
removeChild(const uno::Reference<awt::XLayoutConstrains> & xChild)53 Bin::removeChild( const uno::Reference< awt::XLayoutConstrains >& xChild )
54 {
55 if ( xChild == mxChild )
56 {
57 mxChild = uno::Reference< awt::XLayoutConstrains >();
58 unsetChildParent( xChild );
59 queueResize();
60 }
61 }
62
63 uno::Sequence< uno::Reference< awt::XLayoutConstrains > > SAL_CALL
getChildren()64 Bin::getChildren()
65 {
66 return getSingleChild (mxChild);
67 }
68
69 void SAL_CALL
allocateArea(const awt::Rectangle & rArea)70 Bin::allocateArea( const awt::Rectangle &rArea )
71 {
72 maAllocation = rArea;
73 if ( mxChild.is() )
74 allocateChildAt( mxChild, rArea );
75 }
76
77 awt::Size SAL_CALL
getMinimumSize()78 Bin::getMinimumSize()
79 {
80 if ( mxChild.is() )
81 return maRequisition = maChildRequisition = mxChild->getMinimumSize();
82 return maRequisition = awt::Size( 0, 0 );
83 }
84
85 uno::Reference< beans::XPropertySet > SAL_CALL
getChildProperties(const uno::Reference<awt::XLayoutConstrains> &)86 Bin::getChildProperties( const uno::Reference< awt::XLayoutConstrains >& )
87 {
88 return uno::Reference< beans::XPropertySet >();
89 }
90
91 sal_Bool SAL_CALL
hasHeightForWidth()92 Bin::hasHeightForWidth()
93 {
94 uno::Reference< awt::XLayoutContainer > xChildCont( mxChild, uno::UNO_QUERY );
95 if ( xChildCont.is() )
96 return xChildCont->hasHeightForWidth();
97 return false;
98 }
99
100 sal_Int32 SAL_CALL
getHeightForWidth(sal_Int32 nWidth)101 Bin::getHeightForWidth( sal_Int32 nWidth )
102 {
103 uno::Reference< awt::XLayoutContainer > xChildCont( mxChild, uno::UNO_QUERY );
104 if ( xChildCont.is() )
105 return xChildCont->getHeightForWidth( nWidth );
106 return maRequisition.Height;
107 }
108
109 /* Align */
110
Align()111 Align::Align() : Bin()
112 {
113 addProp( RTL_CONSTASCII_USTRINGPARAM( "Halign" ),
114 ::getCppuType( static_cast< const float* >( NULL ) ),
115 &fHorAlign );
116 addProp( RTL_CONSTASCII_USTRINGPARAM( "Valign" ),
117 ::getCppuType( static_cast< const float* >( NULL ) ),
118 &fVerAlign );
119 addProp( RTL_CONSTASCII_USTRINGPARAM( "Hfill" ),
120 ::getCppuType( static_cast< const float* >( NULL ) ),
121 &fHorFill );
122 addProp( RTL_CONSTASCII_USTRINGPARAM( "Vfill" ),
123 ::getCppuType( static_cast< const float* >( NULL ) ),
124 &fVerFill );
125
126 fHorAlign = fVerAlign = 0.5;
127 fHorFill = fVerFill = 0;
128 }
129
130 void SAL_CALL
allocateArea(const awt::Rectangle & rArea)131 Align::allocateArea( const awt::Rectangle &rArea )
132 {
133 maAllocation = rArea;
134 if ( !mxChild.is() )
135 return;
136
137 awt::Rectangle aChildArea;
138 aChildArea.Width = SAL_MIN( rArea.Width, maChildRequisition.Width );
139 aChildArea.Width += (sal_Int32) SAL_MAX(
140 0, (rArea.Width - maChildRequisition.Width) * fHorFill );
141 aChildArea.Height = SAL_MIN( rArea.Height, maChildRequisition.Height );
142 aChildArea.Height += (sal_Int32) SAL_MAX(
143 0, (rArea.Height - maChildRequisition.Height) * fVerFill );
144
145 aChildArea.X = rArea.X + (sal_Int32)( (rArea.Width - aChildArea.Width) * fHorAlign );
146 aChildArea.Y = rArea.Y + (sal_Int32)( (rArea.Height - aChildArea.Height) * fVerAlign );
147
148 allocateChildAt( mxChild, aChildArea );
149 }
150
151 bool
emptyVisible()152 Align::emptyVisible ()
153 {
154 return true;
155 }
156
157 /* MinSize */
158
MinSize()159 MinSize::MinSize() : Bin()
160 {
161 mnMinWidth = mnMinHeight = 0;
162 addProp( RTL_CONSTASCII_USTRINGPARAM( "MinWidth" ),
163 ::getCppuType( static_cast< const long* >( NULL ) ),
164 &mnMinWidth );
165 addProp( RTL_CONSTASCII_USTRINGPARAM( "MinHeight" ),
166 ::getCppuType( static_cast< const long* >( NULL ) ),
167 &mnMinHeight );
168 }
169
170 bool
emptyVisible()171 MinSize::emptyVisible ()
172 {
173 return true;
174 }
175
getMinimumSize()176 awt::Size SAL_CALL MinSize::getMinimumSize()
177 {
178 Bin::getMinimumSize();
179 maRequisition.Width = SAL_MAX( maRequisition.Width, mnMinWidth );
180 maRequisition.Height = SAL_MAX( maRequisition.Height, mnMinHeight );
181 return maRequisition;
182 }
183
184 } // namespace layoutimpl
185