1 //ListBox.cpp  2   3 /*  4 Copyright 2000-2004 The VCF Project.  5 Please see License.txt in the top level directory  6 where you installed the VCF.  7 */  8   9  10 #include "vcf/ApplicationKit/ApplicationKit.h" 11 #include "vcf/ApplicationKit/ControlsKit.h" 12  13  14 using namespace VCF; 15  16  17 /** 18 *This example demonstrates how the different selection styles of a  19 *ListBoxControl function. The three styles include single selection, 20 *when only 1 item can be selected at a time, multiselection, when  21 *more than 1 item can be selected at a time, and extended selection. 22 *Extended selection is similar to multiselection, but can handle Ctrl+MouseDown 23 *and Shift+MouseDown selection. Experiment.  24 */ 25  26 class ListBoxWindow : public Window { 27 public: 28     ListBoxWindow() { 29         setCaption( "ListBox" ); 30  31         this->setUseColorForBackground( true ); 32      33         this->setWidth(600); 34         this->setHeight(600); 35          36         double labelHeight = 40.0; 37         double listboxWidth = 160.0; 38         double listboxHeight = 300.0; 39         double horizSpace = 20.0; 40         double vertSpace = 10.0; 41      42         // construct labels 43         Label* label1 = new Label(); 44         label1->setBounds(horizSpace, 10, listboxWidth, labelHeight); 45         label1->setWordWrap( true ); 46         label1->setCaption( L"allowsMultiSelect_ = false" ); 47         label1->getFont()->setBold(false);     48      49         Label* label2 = new Label(); 50         label2->setBounds(listboxWidth + 2*horizSpace, 10, listboxWidth, labelHeight); 51         label2->setWordWrap( true ); 52         label2->setCaption( L"allowsMultiSelect_ = true\nallowsExtendedSelect_ = false" );     53         label2->getFont()->setBold(false);     54      55         Label* label3 = new Label(); 56         label3->setBounds(2*listboxWidth + 3*horizSpace, 10, listboxWidth, labelHeight); 57         label3->setWordWrap( true ); 58         label3->setCaption( L"allowsMultiSelect_ = true\nallowsExtendedSelect_ = true" ); 59         label3->getFont()->setBold(false);     60  61      62         //build ListBoxes with a border 63         ListBoxControl* listBoxSingle = new ListBoxControl(); 64         listBoxSingle->setName( L"listBoxSingle" ); 65         listBoxSingle->setUseColorForBackground( true ); 66  67         /** 68         This sets the selection style to single selection (allowsMultiSelect_ = false). 69         */ 70         listBoxSingle->setAllowsMultiSelect( false ); 71  72         ImageList* imgList = new ImageList(this); 73         GraphicsResourceBundle* bundle = Application::getRunningInstance()->getResourceBundle(); 74         imgList->setImageHeight( 16 ); 75         imgList->setImageWidth( 16 ); 76         imgList->setTransparentColor( &Color(0.0f, 1.0f, 0.0f) ); 77         Image* img = bundle->getImage("plain.bmp"); 78         imgList->addImage( img ); 79         delete img; 80  81         img = bundle->getImage("ie.bmp"); 82         imgList->addImage( img ); 83         delete img; 84  85         img = bundle->getImage("access.bmp"); 86         imgList->addImage( img ); 87         delete img; 88  89         img = bundle->getImage("excel.bmp"); 90         imgList->addImage( img ); 91         delete img; 92  93         img = bundle->getImage("fp.bmp"); 94         imgList->addImage( img ); 95         delete img; 96  97         img = bundle->getImage("powerpt.bmp"); 98         imgList->addImage( img ); 99         delete img;100 101         img = bundle->getImage("word.bmp");102         imgList->addImage( img );103         delete img;104 105         /**106         This sets the selection style to single selection. We really107         don‘t need to set this now, because if allowsMultiSelect_ is false,108         the setting for allowsExtendedSelect_ has no effect.109         */110         listBoxSingle->setAllowsExtendedSelect( false );111 112         listBoxSingle->setSmallImageList( imgList );113 114         ListBoxControl* listBoxMulti = new ListBoxControl();115         listBoxMulti->setName( L"listBoxMulti" );116         listBoxMulti->setUseColorForBackground( true );117 118         /**119         This sets the selection style to multi selection (allowsMultiSelect_ = true).120         */121         listBoxMulti->setAllowsMultiSelect( true );122 123         /**124         This sets the selection style to not allow extended selection. It is 125         important to make this call if you DO NOT want extended selection AND126         allowsMultiSelect_ = true, because the default setting for allowsExtendedSelect_ is true.127         This may change in the future.128         */129         listBoxMulti->setAllowsExtendedSelect( false );130 131 132         ListBoxControl* listBoxExtended = new ListBoxControl();133         listBoxExtended->setName( L"listBoxExtended" );134         listBoxExtended->setUseColorForBackground( true );135         listBoxExtended->setAllowsMultiSelect( true );136 137         /**138         This sets the selection style to allow extended selection.139         Technically we do not have to set this here if 140         allowsMultiSelect_ is true, because the default setting for141         allowsExtendedSelect_ is true (this might change in the future, as142         it is a little counter-intuitive).143         */144         listBoxExtended->setAllowsExtendedSelect( true );145 146         listBoxSingle->setBounds(horizSpace, labelHeight + vertSpace, listboxWidth, listboxHeight);147         listBoxMulti->setBounds(listboxWidth + 2*horizSpace, labelHeight + vertSpace, listboxWidth, listboxHeight);148         listBoxExtended->setBounds(2*listboxWidth + 3*horizSpace, labelHeight + vertSpace, listboxWidth, listboxHeight);149     150         //add borders to list boxes151         Basic3DBorder* listBoxSingleBrdr = new Basic3DBorder();152         listBoxSingleBrdr->setInverted( true );153         listBoxSingle->setBorder(listBoxSingleBrdr);154 155         Basic3DBorder* listBoxMultiBrdr = new Basic3DBorder();156         listBoxMultiBrdr->setInverted( true );157         listBoxMulti->setBorder(listBoxMultiBrdr);158 159         Basic3DBorder* listBoxExtendedBrdr = new Basic3DBorder();160         listBoxExtendedBrdr->setInverted( true );161         listBoxExtended->setBorder(listBoxExtendedBrdr);162 163         //add scrollbars to list boxes164         ScrollbarManager* scrollbarManagerSingle = new ScrollbarManager();165         addComponent( scrollbarManagerSingle );166         scrollbarManagerSingle->setHasVerticalScrollbar( true );167         scrollbarManagerSingle->setHasHorizontalScrollbar( true );        168         scrollbarManagerSingle->setTarget( listBoxSingle );169 170         ScrollbarManager* scrollbarManagerMulti = new ScrollbarManager();171         addComponent( scrollbarManagerMulti );172         scrollbarManagerMulti->setHasVerticalScrollbar( true );173         scrollbarManagerMulti->setHasHorizontalScrollbar( true );174         scrollbarManagerMulti->setTarget( listBoxMulti );175 176         ScrollbarManager* scrollbarManagerExtended = new ScrollbarManager();177         addComponent( scrollbarManagerExtended );178         scrollbarManagerExtended->setHasVerticalScrollbar( true );179         scrollbarManagerExtended->setHasHorizontalScrollbar( true );180         scrollbarManagerExtended->setTarget( listBoxExtended );181 182         //add TextControl to display # of selected items183         TextControl* textCtrlSingle = new TextControl();184         textCtrlSingle->setName( L"textCtrlSingle" );185         TextControl* textCtrlMulti = new TextControl();186         textCtrlMulti->setName( L"textCtrlMulti" );187         TextControl* textCtrlExtended = new TextControl();188         textCtrlExtended->setName( L"textCtrlExtended" );189 190         textCtrlSingle->setBounds(horizSpace, labelHeight + 2*vertSpace + listboxHeight, listboxWidth, 20.0);191         textCtrlMulti->setBounds(2*horizSpace + listboxWidth, labelHeight + 2*vertSpace + listboxHeight, listboxWidth, 20.0);192         textCtrlExtended->setBounds(3*horizSpace + 2*listboxWidth, labelHeight + 2*vertSpace + listboxHeight, listboxWidth, 20.0);193 194         // Populate list boxes with some dummy list items.195         ListModel* singleModel = listBoxSingle->getListModel();196         ListModel* multiModel = listBoxMulti->getListModel();197         ListModel* extendedModel = listBoxExtended->getListModel();198 199         for(int j=0; j<60; j++){200             String indx = StringUtils::toString(j);201             String capt = L"DefaultListItem " + indx;202         203             multiModel->add( capt ); 204             extendedModel->add( capt );205 206             //singleModel->add( capt );207             ListItem* item = listBoxSingle->addItem( capt, j / 9 );            208             if ( j%9 == 0 ) {209                 item->setDisplayState( idsChecked );210             }211         }212 213         //add buttons for deselecting all selected items214         CommandButton* btnSingle = new CommandButton();215         CommandButton* btnMulti = new CommandButton();216         CommandButton* btnExtended = new CommandButton();217     218         btnSingle->setBounds( horizSpace, labelHeight + 3*vertSpace + listboxHeight + 20, listboxWidth, 25.0 );219         btnMulti->setBounds( 2*horizSpace + listboxWidth, labelHeight + 3*vertSpace + listboxHeight + 20, listboxWidth, 25.0 );220         btnExtended->setBounds( 3*horizSpace + 2*listboxWidth, labelHeight + 3*vertSpace + listboxHeight + 20, listboxWidth, 25.0 );        221     222         btnSingle->setCaption( "Deselect All" );223         btnMulti->setCaption( "Deselect All" );224         btnExtended->setCaption( "Deselect All" );225     226 227         //add Controls to MainWindow228         this->setWidth(3*listboxWidth+4*horizSpace + 8);229         230         this->add(label1);231         this->add(label2);232         this->add(label3);233 234         this->add(listBoxSingle);235         this->add(listBoxMulti);236         listBoxExtended->setAnchor( AnchorLeft | AnchorRight );237         this->add(listBoxExtended);238 239         this->add(textCtrlSingle);240         this->add(textCtrlMulti);241         textCtrlExtended->setAnchor( AnchorLeft | AnchorRight );242         this->add(textCtrlExtended);243 244         this->add(btnSingle);245         this->add(btnMulti);246         btnExtended->setAnchor( AnchorLeft | AnchorRight );247         this->add(btnExtended);248     249         //add SelectionChanged handlers for each listbox.250         listBoxSingle->ItemSelectionChanged.add( new ClassProcedure1<ItemEvent*,ListBoxWindow>(this, &ListBoxWindow::getListBoxSingleInfo, "ListBoxWindow::getListBoxSingleInfo"));251         listBoxMulti->ItemSelectionChanged.add( new ClassProcedure1<ItemEvent*,ListBoxWindow>(this, &ListBoxWindow::getListBoxMultiInfo, "ListBoxWindow::getListBoxMultiInfo"));252         listBoxExtended->ItemSelectionChanged.add( new ClassProcedure1<ItemEvent*,ListBoxWindow>(this, &ListBoxWindow::getListBoxExtendedInfo, "ListBoxWindow::getListBoxExtendedInfo"));253     254         //add ButtonClicked handlers for each command button.    255         btnSingle->ButtonClicked.add( new ClassProcedure1<ButtonEvent*,ListBoxWindow>( this, &ListBoxWindow::onbtnSingleClicked, "ListBoxWindow::onbtnSingleClicked" ) );256         btnMulti->ButtonClicked.add( new ClassProcedure1<ButtonEvent*,ListBoxWindow>( this, &ListBoxWindow::onbtnMultiClicked, "ListBoxWindow::onbtnMultiClicked" ) );257         btnExtended->ButtonClicked.add( new ClassProcedure1<ButtonEvent*,ListBoxWindow>( this, &ListBoxWindow::onbtnExtendedClicked, "ListBoxWindow::onbtnExtendedClicked" ) );258 259     }260 261     virtual ~ListBoxWindow(){};262 263 264     void getListBoxSingleInfo( VCF::ItemEvent* );265     void getListBoxMultiInfo( VCF::ItemEvent* );266     void getListBoxExtendedInfo( VCF::ItemEvent* );267 268     void getListBoxInfo(VCF::ListBoxControl* LBC, VCF::TextControl* txtCtrl);269 270     void onbtnSingleClicked( VCF::ButtonEvent* );271     void onbtnMultiClicked( VCF::ButtonEvent* );272     void onbtnExtendedClicked( VCF::ButtonEvent* );273 274 275 };276 277 /** This is our main function that calculates the # of selected items in 278 a list box and displays the # in a corresponding text control. This is called279 by each of the list box control and button handlers that we added. Those handlers280 find the correct MyListBox and CommandButton instances and pass pointers to them to281 this function.282 */283 void ListBoxWindow::getListBoxInfo(ListBoxControl* LBC, TextControl* txtCtrl){284     Enumerator<ListItem*>* myvec = LBC->getSelectedItems();    285     286     int sz = 0;    287     while( myvec->hasMoreElements() ){288         sz += 1;289         ListItem* li = myvec->nextElement();290     }291     String text = StringUtils::toString( sz ) + " items selected";    292     txtCtrl->getTextModel()->setText( text );293 294 }295 296 void ListBoxWindow::onbtnSingleClicked( ButtonEvent*  ){    297     ListBoxControl* LBC = (ListBoxControl*)this->findComponent( "listBoxSingle" );298     TextControl* txtCtrl = (TextControl*)this->findComponent( "textCtrlSingle" );299     LBC->deselectAllItems();    300     getListBoxInfo(LBC, txtCtrl);301 }302 303 void ListBoxWindow::onbtnMultiClicked( ButtonEvent*  ){    304     ListBoxControl* LBC = (ListBoxControl*)this->findComponent( "listBoxMulti" );305     TextControl* txtCtrl = (TextControl*)this->findComponent( "textCtrlMulti" );306     LBC->deselectAllItems();    307     getListBoxInfo(LBC, txtCtrl);    308 }309 310 void ListBoxWindow::onbtnExtendedClicked( ButtonEvent*  ){    311     ListBoxControl* LBC = (ListBoxControl*)this->findComponent( "listBoxExtended" );312     TextControl* txtCtrl = (TextControl*)this->findComponent( "textCtrlExtended" );313     LBC->deselectAllItems();    314     getListBoxInfo(LBC, txtCtrl);315 }316 317 void ListBoxWindow::getListBoxSingleInfo( ItemEvent* )318 {319     ListBoxControl* LBC = (ListBoxControl*)this->findComponent( "listBoxSingle" );    320     TextControl* txtCtrl = (TextControl*)this->findComponent( "textCtrlSingle" );321     getListBoxInfo(LBC, txtCtrl);    322 }323 324 void ListBoxWindow::getListBoxMultiInfo( ItemEvent* )325 {326     ListBoxControl* LBC = (ListBoxControl*)this->findComponent( "listBoxMulti" );    327     TextControl* txtCtrl = (TextControl*)this->findComponent( "textCtrlMulti" );328     getListBoxInfo(LBC, txtCtrl);    329 }330 331 void ListBoxWindow::getListBoxExtendedInfo( ItemEvent* )332 {333     ListBoxControl* LBC = (ListBoxControl*)this->findComponent( "listBoxExtended" );    334     TextControl* txtCtrl = (TextControl*)this->findComponent( "textCtrlExtended" );335     getListBoxInfo(LBC, txtCtrl);336 }337 338 339 340 341 342 class ListBoxApplication : public Application {343 public:344 345     ListBoxApplication( int argc, char** argv ) : Application(argc, argv) {346 347     }348 349     virtual bool initRunningApplication(){350         bool result = Application::initRunningApplication();351         352         Window* mainWindow = new ListBoxWindow();353         setMainWindow(mainWindow);354         mainWindow->setBounds( &Rect( 50.0, 50.0, 650.0, 500.0 ) );355         mainWindow->show();356         357         return result;358     }359 360 };361 362 363 int main(int argc, char *argv[])364 {365     Application* app = new ListBoxApplication( argc, argv );366 367     Application::main();368     369     return 0;370 }