libyui-qt
2.43.5
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00001 /* 00002 Copyright (C) 2000-2012 Novell, Inc 00003 This library is free software; you can redistribute it and/or modify 00004 it under the terms of the GNU Lesser General Public License as 00005 published by the Free Software Foundation; either version 2.1 of the 00006 License, or (at your option) version 3.0 of the License. This library 00007 is distributed in the hope that it will be useful, but WITHOUT ANY 00008 WARRANTY; without even the implied warranty of MERCHANTABILITY or 00009 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 00010 License for more details. You should have received a copy of the GNU 00011 Lesser General Public License along with this library; if not, write 00012 to the Free Software Foundation, Inc., 51 Franklin Street, Fifth 00013 Floor, Boston, MA 02110-1301 USA 00014 */ 00015 00016 00017 /*-/ 00018 00019 File: YQMenuButton.cc 00020 00021 Author: Stefan Hundhammer <sh@suse.de> 00022 00023 /-*/ 00024 00025 00026 #include <qpushbutton.h> 00027 #include <QMenu> 00028 #include <qsize.h> 00029 #include <qtimer.h> 00030 #define YUILogComponent "qt-ui" 00031 #include <yui/YUILog.h> 00032 00033 #include "utf8.h" 00034 #include "YQUI.h" 00035 #include "YQMenuButton.h" 00036 #include <yui/YEvent.h> 00037 00038 00039 00040 YQMenuButton::YQMenuButton( YWidget * parent, 00041 const std::string & label ) 00042 : QWidget( (QWidget *) parent->widgetRep() ) 00043 , YMenuButton( parent, label ) 00044 , _selectedItem( 0 ) 00045 { 00046 setWidgetRep( this ); 00047 _qt_button = new QPushButton( fromUTF8( label ), this ); 00048 // _qt_button->setMinimumSize( 2,2 ); 00049 _qt_button->move( YQButtonBorder, YQButtonBorder ); 00050 setMinimumSize( _qt_button->minimumSize() 00051 + 2 * QSize( YQButtonBorder, YQButtonBorder ) ); 00052 } 00053 00054 00055 YQMenuButton::~YQMenuButton() 00056 { 00057 // NOP 00058 } 00059 00060 00061 void 00062 YQMenuButton::setLabel( const std::string & label ) 00063 { 00064 _qt_button->setText( fromUTF8( label ) ); 00065 YMenuButton::setLabel( label ); 00066 } 00067 00068 00069 void 00070 YQMenuButton::rebuildMenuTree() 00071 { 00072 // 00073 // Delete any previous menu 00074 // (in case the menu items got replaced) 00075 // 00076 00077 if ( _qt_button->menu() ) 00078 delete _qt_button->menu(); 00079 00080 // 00081 // Create toplevel menu 00082 // 00083 00084 QMenu * menu = new QMenu( _qt_button ); 00085 YUI_CHECK_NEW( menu ); 00086 _qt_button->setMenu( menu ); 00087 menu->setProperty( "class", "ymenubutton QMenu" ); 00088 00089 connect( menu, SIGNAL( triggered ( QAction * ) ), 00090 this, SLOT ( menuEntryActivated( QAction * ) ) ); 00091 00092 // 00093 // Recursively add Qt menu items from the YMenuItems 00094 // 00095 00096 rebuildMenuTree( menu, itemsBegin(), itemsEnd() ); 00097 } 00098 00099 00100 void 00101 YQMenuButton::rebuildMenuTree( QMenu * parentMenu, YItemIterator begin, YItemIterator end ) 00102 { 00103 for ( YItemIterator it = begin; it != end; ++it ) 00104 { 00105 YItem * item = *it; 00106 QPixmap icon; 00107 00108 if ( item->hasIconName() ) 00109 { 00110 std::string iconName = iconFullPath( item ); 00111 icon = QPixmap( iconName.c_str() ); 00112 00113 if ( icon.isNull() ) 00114 yuiWarning() << "Can't load icon " << iconName << std::endl; 00115 } 00116 00117 if ( item->hasChildren() ) 00118 { 00119 QMenu * subMenu; 00120 00121 if ( icon.isNull() ) 00122 subMenu = parentMenu->addMenu( fromUTF8( item->label() )); 00123 else 00124 subMenu = parentMenu->addMenu( QIcon( icon ), fromUTF8( item->label() )); 00125 00126 connect( subMenu, SIGNAL( triggered ( QAction * ) ), 00127 this, SLOT ( menuEntryActivated( QAction * ) ) ); 00128 00129 rebuildMenuTree( subMenu, item->childrenBegin(), item->childrenEnd() ); 00130 } 00131 else // No children - leaf entry 00132 { 00133 // item->index() is guaranteed to be unique within this YMenuButton's items, 00134 // so it can easily be used as unique ID in all Q3PopupMenus that belong 00135 // to this YQMenuButton. 00136 00137 QAction *act; 00138 00139 if ( icon.isNull() ) 00140 act = parentMenu->addAction( fromUTF8( item->label() ) ); 00141 else 00142 act = parentMenu->addAction( QIcon( icon ), fromUTF8( item->label() ) ); 00143 00144 _serials[act] = item->index(); 00145 } 00146 } 00147 } 00148 00149 00150 void 00151 YQMenuButton::menuEntryActivated( QAction* action ) 00152 { 00153 int serialNo = -1; 00154 if ( _serials.contains( action ) ) 00155 serialNo = _serials[action]; 00156 00157 // yuiDebug() << "Selected menu entry #" << menu_item_index << std::endl; 00158 _selectedItem = findMenuItem( serialNo ); 00159 00160 if ( _selectedItem ) 00161 { 00162 /* 00163 * Defer the real returnNow() until all popup related events have been 00164 * processed. This took me some hours to figure out; obviously 00165 * exit_loop() doesn't have any effect as long as there are still 00166 * popups open. So be it - use a zero timer to perform the real 00167 * returnNow() later. 00168 */ 00169 00170 /* 00171 * the 100 delay is a ugly dirty workaround 00172 */ 00173 QTimer::singleShot( 100, this, SLOT( returnNow() ) ); 00174 } 00175 else 00176 { 00177 yuiError() << "No menu item with serial no. " << serialNo << std::endl; 00178 } 00179 } 00180 00181 00182 void 00183 YQMenuButton::returnNow() 00184 { 00185 if ( _selectedItem ) 00186 { 00187 YQUI::ui()->sendEvent( new YMenuEvent( _selectedItem ) ); 00188 _selectedItem = 0; 00189 } 00190 } 00191 00192 00193 00194 void 00195 YQMenuButton::setEnabled( bool enabled ) 00196 { 00197 _qt_button->setEnabled( enabled ); 00198 YWidget::setEnabled( enabled ); 00199 } 00200 00201 00202 int YQMenuButton::preferredWidth() 00203 { 00204 return 2*YQButtonBorder + _qt_button->sizeHint().width(); 00205 } 00206 00207 00208 int YQMenuButton::preferredHeight() 00209 { 00210 return 2*YQButtonBorder + _qt_button->sizeHint().height(); 00211 } 00212 00213 00214 void 00215 YQMenuButton::setSize( int newWidth, int newHeight ) 00216 { 00217 _qt_button->resize( newWidth - 2 * YQButtonBorder, 00218 newHeight - 2 * YQButtonBorder ); 00219 resize( newWidth, newHeight ); 00220 } 00221 00222 00223 bool 00224 YQMenuButton::setKeyboardFocus() 00225 { 00226 _qt_button->setFocus(); 00227 00228 return true; 00229 } 00230 00231 00232 #include "YQMenuButton.moc"