00001 /************************************************************************ 00002 filename: CEGUICheckbox.cpp 00003 created: 13/4/2004 00004 author: Paul D Turner 00005 00006 purpose: Implementation of Checkbox base class 00007 *************************************************************************/ 00008 /************************************************************************* 00009 Crazy Eddie's GUI System (http://www.cegui.org.uk) 00010 Copyright (C)2004 - 2005 Paul D Turner (paul@cegui.org.uk) 00011 00012 This library is free software; you can redistribute it and/or 00013 modify it under the terms of the GNU Lesser General Public 00014 License as published by the Free Software Foundation; either 00015 version 2.1 of the License, or (at your option) any later version. 00016 00017 This library is distributed in the hope that it will be useful, 00018 but WITHOUT ANY WARRANTY; without even the implied warranty of 00019 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00020 Lesser General Public License for more details. 00021 00022 You should have received a copy of the GNU Lesser General Public 00023 License along with this library; if not, write to the Free Software 00024 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00025 *************************************************************************/ 00026 #include "elements/CEGUICheckbox.h" 00027 00028 // Start of CEGUI namespace section 00029 namespace CEGUI 00030 { 00031 const String Checkbox::EventNamespace("Checkbox"); 00032 00033 /************************************************************************* 00034 Definitions for Properties 00035 *************************************************************************/ 00036 CheckboxProperties::Selected Checkbox::d_selectedProperty; 00037 00038 00039 /************************************************************************* 00040 Event name constants 00041 *************************************************************************/ 00042 // generated internally by Window 00043 const String Checkbox::EventCheckStateChanged( (utf8*)"CheckStateChanged" ); 00044 00045 00046 /************************************************************************* 00047 Constructor 00048 *************************************************************************/ 00049 Checkbox::Checkbox(const String& type, const String& name) : 00050 ButtonBase(type, name), 00051 d_selected(false) 00052 { 00053 // add events for this widget 00054 addCheckboxEvents(); 00055 00056 addCheckboxProperties(); 00057 } 00058 00059 00060 /************************************************************************* 00061 Destructor 00062 *************************************************************************/ 00063 Checkbox::~Checkbox(void) 00064 { 00065 } 00066 00067 00068 /************************************************************************* 00069 set whether the check-box is selected or not 00070 *************************************************************************/ 00071 void Checkbox::setSelected(bool select) 00072 { 00073 if (select != d_selected) 00074 { 00075 d_selected = select; 00076 requestRedraw(); 00077 00078 WindowEventArgs args(this); 00079 onSelectStateChange(args); 00080 } 00081 00082 } 00083 00084 00085 /************************************************************************* 00086 event triggered internally when state of check-box changes 00087 *************************************************************************/ 00088 void Checkbox::onSelectStateChange(WindowEventArgs& e) 00089 { 00090 fireEvent(EventCheckStateChanged, e, EventNamespace); 00091 } 00092 00093 00094 /************************************************************************* 00095 Handler for mouse button up events 00096 *************************************************************************/ 00097 void Checkbox::onMouseButtonUp(MouseEventArgs& e) 00098 { 00099 if ((e.button == LeftButton) && isPushed()) 00100 { 00101 Window* sheet = System::getSingleton().getGUISheet(); 00102 00103 if (sheet != NULL) 00104 { 00105 // if mouse was released over this widget 00106 if (this == sheet->getChildAtPosition(e.position)) 00107 { 00108 // toggle selected state 00109 setSelected(d_selected ^ true); 00110 } 00111 00112 } 00113 00114 e.handled = true; 00115 } 00116 00117 // default handling 00118 ButtonBase::onMouseButtonUp(e); 00119 } 00120 00121 00122 /************************************************************************* 00123 Add check-box specific events 00124 *************************************************************************/ 00125 void Checkbox::addCheckboxEvents(void) 00126 { 00127 addEvent(EventCheckStateChanged); 00128 } 00129 00130 /************************************************************************* 00131 Add properties 00132 *************************************************************************/ 00133 void Checkbox::addCheckboxProperties(void) 00134 { 00135 addProperty(&d_selectedProperty); 00136 } 00137 00138 00139 00140 } // End of CEGUI namespace section