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3 * Licensed to the Apache Software Foundation (ASF) under one
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21
22
23
24 #include "box.hxx"
25
26 #include <tools/debug.hxx>
27 #include <sal/macros.h>
28
29 #include <com/sun/star/awt/XWindow2.hpp>
30
31 // fixed point precision for distributing error
32 #define FIXED_PT 16
33
34 namespace layoutimpl
35 {
36
37 using namespace css;
38
ChildData(uno::Reference<awt::XLayoutConstrains> const & xChild)39 Box_Base::ChildData::ChildData( uno::Reference< awt::XLayoutConstrains > const& xChild )
40 : mxChild( xChild )
41 , mxProps()
42 , maRequisition()
43 {
44 }
45
isVisible(uno::Reference<awt::XLayoutConstrains> xWidget)46 static bool isVisible( uno::Reference< awt::XLayoutConstrains > xWidget )
47 {
48 if ( !xWidget.is() )
49 {
50 DBG_ERROR( "FIXME: invalid child !" );
51 return true;
52 }
53
54 uno::Reference< awt::XWindow2 > xWindow( xWidget, uno::UNO_QUERY );
55 if ( xWindow.is() && !xWindow->isVisible() )
56 return false;
57
58 uno::Reference< awt::XLayoutContainer > xContainer( xWidget, uno::UNO_QUERY );
59 if ( xContainer.is() )
60 {
61 uno::Sequence< uno::Reference< awt::XLayoutConstrains > > aChildren
62 = xContainer->getChildren();
63
64 if (!aChildren.getLength ())
65 if (Container *c = dynamic_cast <Container*> (xWidget.get ()))
66 return c->emptyVisible ();
67
68 for ( int i = 0; i < aChildren.getLength(); i++ )
69 if ( isVisible( aChildren[i] ) )
70 return true;
71 return false; // this would kill flow without workaround above
72 }
73
74 return true;
75 }
76
isVisible()77 bool Box_Base::ChildData::isVisible()
78 {
79 // FIXME: call the 'isVisible' method on it ?
80 return layoutimpl::isVisible( mxChild );
81 }
82
83 void
AddChild(uno::Reference<awt::XLayoutConstrains> const & xChild)84 Box_Base::AddChild (uno::Reference <awt::XLayoutConstrains> const& xChild)
85 {
86 ChildData *pData = createChild (xChild);
87 maChildren.push_back (pData);
88 queueResize ();
89 }
90
91 void SAL_CALL
addChild(uno::Reference<awt::XLayoutConstrains> const & xChild)92 Box_Base::addChild (uno::Reference <awt::XLayoutConstrains> const& xChild)
93 throw (uno::RuntimeException, awt::MaxChildrenException)
94 {
95 if (xChild.is ())
96 {
97 AddChild (xChild);
98 setChildParent (xChild);
99 }
100 }
101
102 Box_Base::ChildData*
removeChildData(std::list<ChildData * > & lst,css::uno::Reference<css::awt::XLayoutConstrains> const & xChild)103 Box_Base::removeChildData( std::list< ChildData* >& lst, css::uno::Reference< css::awt::XLayoutConstrains > const& xChild )
104 {
105 for ( std::list< ChildData* >::iterator it = lst.begin();
106 it != lst.end(); it++ )
107 {
108 if ( (*it)->mxChild == xChild )
109 {
110 ChildData* pRet = *it;
111 lst.erase( it );
112 return pRet;
113 }
114 }
115 return 0;
116 }
117
118 void SAL_CALL
removeChild(const uno::Reference<awt::XLayoutConstrains> & xChild)119 Box_Base::removeChild( const uno::Reference< awt::XLayoutConstrains >& xChild )
120 throw (uno::RuntimeException)
121 {
122 if ( ChildData* p = removeChildData( maChildren, xChild ) )
123 {
124 delete p;
125 unsetChildParent( xChild );
126 queueResize();
127 }
128 else
129 {
130 DBG_ERROR( "Box_Base: removeChild: no such child" );
131 }
132 }
133
134 uno::Sequence< uno::Reference < awt::XLayoutConstrains > > SAL_CALL
getChildren()135 Box_Base::getChildren()
136 throw (uno::RuntimeException)
137 {
138 uno::Sequence< uno::Reference< awt::XLayoutConstrains > > children( maChildren.size() );
139 unsigned int index = 0;
140 for ( std::list< ChildData* >::iterator it = maChildren.begin();
141 it != maChildren.end(); it++, index++ )
142 children[index] = ( *it )->mxChild;
143
144 return children;
145 }
146
147 uno::Reference< beans::XPropertySet > SAL_CALL
getChildProperties(const uno::Reference<awt::XLayoutConstrains> & xChild)148 Box_Base::getChildProperties( const uno::Reference< awt::XLayoutConstrains >& xChild )
149 throw (uno::RuntimeException)
150 {
151
152 for ( std::list< ChildData * >::iterator it = maChildren.begin();
153 it != maChildren.end(); it++)
154 {
155 if ( ( *it )->mxChild == xChild )
156 {
157 if ( !( *it )->mxProps.is() )
158 {
159 PropHelper *pProps = createChildProps( *it );
160 pProps->setChangeListener( this );
161 ( *it )->mxProps = pProps;
162 }
163 return (*it)->mxProps;
164 }
165 }
166 return uno::Reference< beans::XPropertySet >();
167 }
168
169 } // namespace layoutimpl
170