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 #ifndef LAYOUT_CORE_FLOW_HXX 25 #define LAYOUT_CORE_FLOW_HXX 26 27 #include <layout/core/container.hxx> 28 29 #include <list> 30 31 namespace layoutimpl 32 { 33 34 class Flow : public Container 35 { 36 protected: 37 // Box properties (i.e. affect all children) 38 sal_Int32 mnSpacing; 39 sal_Bool mbHomogeneous; 40 41 public: 42 // Children properties 43 struct ChildData 44 { 45 css::awt::Size aRequisition; 46 css::uno::Reference< css::awt::XLayoutConstrains > xChild; 47 css::uno::Reference< css::beans::XPropertySet > xProps; 48 bool isVisible(); 49 }; 50 51 protected: 52 std::list< ChildData * > maChildren; 53 long mnEachWidth; // on homogeneous, the width of every child 54 55 public: 56 Flow(); 57 58 bool emptyVisible (); 59 60 // css::awt::XLayoutContainer 61 virtual void SAL_CALL addChild( const css::uno::Reference< css::awt::XLayoutConstrains >& Child ); 62 virtual void SAL_CALL removeChild( const css::uno::Reference< css::awt::XLayoutConstrains >& Child ); 63 64 virtual css::uno::Sequence< css::uno::Reference 65 < css::awt::XLayoutConstrains > > SAL_CALL getChildren(); 66 67 virtual css::uno::Reference< css::beans::XPropertySet > SAL_CALL getChildProperties( 68 const css::uno::Reference< css::awt::XLayoutConstrains >& Child ); 69 70 virtual void SAL_CALL allocateArea( const css::awt::Rectangle &rArea ); 71 72 virtual css::awt::Size SAL_CALL getMinimumSize(); 73 virtual sal_Bool SAL_CALL hasHeightForWidth(); 74 virtual sal_Int32 SAL_CALL getHeightForWidth( sal_Int32 nWidth ); 75 76 private: 77 // shared between getMinimumSize() and getHeightForWidth() 78 css::awt::Size calculateSize( long nMaxWidth ); 79 }; 80 81 } // namespace layoutimpl 82 83 #endif /* LAYOUT_FLOW_CORE_HXX */ 84