1*b1cdbd2cSJim Jagielski /**************************************************************
2*b1cdbd2cSJim Jagielski *
3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one
4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file
5*b1cdbd2cSJim Jagielski * distributed with this work for additional information
6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file
7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the
8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance
9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at
10*b1cdbd2cSJim Jagielski *
11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0
12*b1cdbd2cSJim Jagielski *
13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing,
14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an
15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the
17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations
18*b1cdbd2cSJim Jagielski * under the License.
19*b1cdbd2cSJim Jagielski *
20*b1cdbd2cSJim Jagielski *************************************************************/
21*b1cdbd2cSJim Jagielski
22*b1cdbd2cSJim Jagielski
23*b1cdbd2cSJim Jagielski
24*b1cdbd2cSJim Jagielski #include "timer.hxx"
25*b1cdbd2cSJim Jagielski
26*b1cdbd2cSJim Jagielski #include <vector>
27*b1cdbd2cSJim Jagielski #include <list>
28*b1cdbd2cSJim Jagielski #include <vcl/timer.hxx>
29*b1cdbd2cSJim Jagielski #include <com/sun/star/awt/XLayoutContainer.hpp>
30*b1cdbd2cSJim Jagielski
31*b1cdbd2cSJim Jagielski namespace layoutimpl
32*b1cdbd2cSJim Jagielski {
33*b1cdbd2cSJim Jagielski using namespace ::com::sun::star;
34*b1cdbd2cSJim Jagielski
35*b1cdbd2cSJim Jagielski class AllocateTimer : public Timer
36*b1cdbd2cSJim Jagielski {
37*b1cdbd2cSJim Jagielski typedef std::list< uno::Reference< awt::XLayoutContainer > > ContainerList;
38*b1cdbd2cSJim Jagielski ContainerList mxContainers;
39*b1cdbd2cSJim Jagielski uno::Reference< awt::XLayoutContainer > mxLastAdded;
40*b1cdbd2cSJim Jagielski
41*b1cdbd2cSJim Jagielski public:
AllocateTimer()42*b1cdbd2cSJim Jagielski AllocateTimer()
43*b1cdbd2cSJim Jagielski {
44*b1cdbd2cSJim Jagielski // timer set to 0 -- just process it as soon as it gets idle
45*b1cdbd2cSJim Jagielski SetTimeout( 0 );
46*b1cdbd2cSJim Jagielski }
47*b1cdbd2cSJim Jagielski
isParentOf(uno::Reference<awt::XLayoutContainer> xParent,uno::Reference<awt::XLayoutContainer> xWidget)48*b1cdbd2cSJim Jagielski static inline bool isParentOf( uno::Reference< awt::XLayoutContainer > xParent,
49*b1cdbd2cSJim Jagielski uno::Reference< awt::XLayoutContainer > xWidget )
50*b1cdbd2cSJim Jagielski {
51*b1cdbd2cSJim Jagielski while ( xWidget.is() )
52*b1cdbd2cSJim Jagielski {
53*b1cdbd2cSJim Jagielski if ( xWidget == xParent )
54*b1cdbd2cSJim Jagielski return true;
55*b1cdbd2cSJim Jagielski xWidget = uno::Reference< awt::XLayoutContainer >( xWidget->getParent(), uno::UNO_QUERY );
56*b1cdbd2cSJim Jagielski }
57*b1cdbd2cSJim Jagielski return false;
58*b1cdbd2cSJim Jagielski }
59*b1cdbd2cSJim Jagielski
eraseChildren(ContainerList::iterator & it,ContainerList & list)60*b1cdbd2cSJim Jagielski static inline void eraseChildren( ContainerList::iterator &it, ContainerList &list )
61*b1cdbd2cSJim Jagielski {
62*b1cdbd2cSJim Jagielski ContainerList::iterator jt = list.begin();
63*b1cdbd2cSJim Jagielski while ( jt != list.end() )
64*b1cdbd2cSJim Jagielski {
65*b1cdbd2cSJim Jagielski if ( it != jt && isParentOf( *it, *jt ) )
66*b1cdbd2cSJim Jagielski jt = list.erase( jt );
67*b1cdbd2cSJim Jagielski else
68*b1cdbd2cSJim Jagielski jt++;
69*b1cdbd2cSJim Jagielski }
70*b1cdbd2cSJim Jagielski }
71*b1cdbd2cSJim Jagielski
isContainerDamaged(uno::Reference<awt::XLayoutContainer> xContainer)72*b1cdbd2cSJim Jagielski static inline bool isContainerDamaged( uno::Reference< awt::XLayoutContainer > xContainer )
73*b1cdbd2cSJim Jagielski {
74*b1cdbd2cSJim Jagielski uno::Reference< awt::XLayoutConstrains > xConstrains( xContainer, uno::UNO_QUERY );
75*b1cdbd2cSJim Jagielski awt::Size lastReq( xContainer->getRequestedSize() );
76*b1cdbd2cSJim Jagielski awt::Size curReq( xConstrains->getMinimumSize() );
77*b1cdbd2cSJim Jagielski return lastReq.Width != curReq.Width || lastReq.Height != curReq.Height;
78*b1cdbd2cSJim Jagielski }
79*b1cdbd2cSJim Jagielski
add(const uno::Reference<awt::XLayoutContainer> & xContainer)80*b1cdbd2cSJim Jagielski void add( const uno::Reference< awt::XLayoutContainer > &xContainer )
81*b1cdbd2cSJim Jagielski {
82*b1cdbd2cSJim Jagielski // small optimization
83*b1cdbd2cSJim Jagielski if ( mxLastAdded == xContainer )
84*b1cdbd2cSJim Jagielski return;
85*b1cdbd2cSJim Jagielski mxLastAdded = xContainer;
86*b1cdbd2cSJim Jagielski
87*b1cdbd2cSJim Jagielski mxContainers.push_back( xContainer );
88*b1cdbd2cSJim Jagielski }
89*b1cdbd2cSJim Jagielski
Timeout()90*b1cdbd2cSJim Jagielski virtual void Timeout()
91*b1cdbd2cSJim Jagielski {
92*b1cdbd2cSJim Jagielski mxLastAdded = uno::Reference< awt::XLayoutContainer >();
93*b1cdbd2cSJim Jagielski
94*b1cdbd2cSJim Jagielski // 1. remove duplications and children
95*b1cdbd2cSJim Jagielski for ( ContainerList::iterator it = mxContainers.begin();
96*b1cdbd2cSJim Jagielski it != mxContainers.end(); it++ )
97*b1cdbd2cSJim Jagielski eraseChildren( it, mxContainers );
98*b1cdbd2cSJim Jagielski
99*b1cdbd2cSJim Jagielski // 2. check damage extent
100*b1cdbd2cSJim Jagielski for ( ContainerList::iterator it = mxContainers.begin();
101*b1cdbd2cSJim Jagielski it != mxContainers.end(); it++ )
102*b1cdbd2cSJim Jagielski {
103*b1cdbd2cSJim Jagielski uno::Reference< awt::XLayoutContainer > xContainer = *it;
104*b1cdbd2cSJim Jagielski while ( xContainer->getParent().is() && isContainerDamaged( xContainer ) )
105*b1cdbd2cSJim Jagielski {
106*b1cdbd2cSJim Jagielski xContainer = uno::Reference< awt::XLayoutContainer >(
107*b1cdbd2cSJim Jagielski xContainer->getParent(), uno::UNO_QUERY );
108*b1cdbd2cSJim Jagielski }
109*b1cdbd2cSJim Jagielski
110*b1cdbd2cSJim Jagielski if ( *it != xContainer )
111*b1cdbd2cSJim Jagielski {
112*b1cdbd2cSJim Jagielski // 2.2 replace it with parent
113*b1cdbd2cSJim Jagielski *it = xContainer;
114*b1cdbd2cSJim Jagielski
115*b1cdbd2cSJim Jagielski // 2.3 remove children of new parent
116*b1cdbd2cSJim Jagielski eraseChildren( it, mxContainers );
117*b1cdbd2cSJim Jagielski }
118*b1cdbd2cSJim Jagielski }
119*b1cdbd2cSJim Jagielski
120*b1cdbd2cSJim Jagielski // 3. force re-calculations
121*b1cdbd2cSJim Jagielski for ( ContainerList::iterator it = mxContainers.begin();
122*b1cdbd2cSJim Jagielski it != mxContainers.end(); it++ )
123*b1cdbd2cSJim Jagielski (*it)->allocateArea( (*it)->getAllocatedArea() );
124*b1cdbd2cSJim Jagielski }
125*b1cdbd2cSJim Jagielski };
126*b1cdbd2cSJim Jagielski
AddResizeTimeout(const uno::Reference<awt::XLayoutContainer> & xCont)127*b1cdbd2cSJim Jagielski static void AddResizeTimeout( const uno::Reference< awt::XLayoutContainer > &xCont )
128*b1cdbd2cSJim Jagielski {
129*b1cdbd2cSJim Jagielski static AllocateTimer timer;
130*b1cdbd2cSJim Jagielski timer.add( xCont );
131*b1cdbd2cSJim Jagielski timer.Start();
132*b1cdbd2cSJim Jagielski }
133*b1cdbd2cSJim Jagielski
LayoutUnit()134*b1cdbd2cSJim Jagielski LayoutUnit::LayoutUnit() : LayoutUnit_Base()
135*b1cdbd2cSJim Jagielski {
136*b1cdbd2cSJim Jagielski }
137*b1cdbd2cSJim Jagielski
queueResize(const uno::Reference<awt::XLayoutContainer> & xContainer)138*b1cdbd2cSJim Jagielski void SAL_CALL LayoutUnit::queueResize( const uno::Reference< awt::XLayoutContainer > &xContainer )
139*b1cdbd2cSJim Jagielski throw( uno::RuntimeException )
140*b1cdbd2cSJim Jagielski {
141*b1cdbd2cSJim Jagielski AddResizeTimeout( xContainer );
142*b1cdbd2cSJim Jagielski }
143*b1cdbd2cSJim Jagielski
144*b1cdbd2cSJim Jagielski }
145