Examples of CanvasItem

com.smartgwt.client.widgets.form.fields.CanvasItem
Form item which renders a Canvas inline in a DynamicForm instance.
CanvasItem is {@link com.smartgwt.client.widgets.form.fields.FormItem#getShouldSaveValue shouldSaveValue}:false by default, meaning that no value from the CanvasItem will be present in values and no value will be saved when {@link com.smartgwt.client.widgets.form.DynamicForm#saveData DynamicForm.saveData} is called.
The simplest way tohave a CanvasItem contribute a value to the data that a form saves is retrieve a value directly from the managed Canvas and then call {@link com.smartgwt.client.widgets.form.DynamicForm#setValue DynamicForm.setValue} immediatelybefore calling {@link com.smartgwt.client.widgets.form.DynamicForm#saveData saveData()}.
For example if you were to embed a {@link com.smartgwt.client.widgets.Slider} widget into a form via a CanvasItem, your code to save might be:
```
   formId.setValue("canvasItemFieldName", sliderId.getValue());
   formId.saveData();
 
```
Note that there is a pre-existing {@link com.smartgwt.client.widgets.form.fields.SliderItem} so this approach is not necessary for embedding a Slider into aDynamicForm, just use SliderItem.

Examples of com.smartgwt.client.widgets.form.fields.CanvasItem

        StaticTextItem bundleName = new StaticTextItem("bundle");
        bundleName.setTitle(MSG.common_title_bundle());
        bundleName.setValue("<a href=\"" + LinkManager.getBundleLink(bundle.getId()) + "\">"
            + StringUtility.escapeHtml(bundle.getName()) + "</a>");


        CanvasItem actionItem = new CanvasItem("actions");
        actionItem.setColSpan(1);
        actionItem.setRowSpan(4);
        actionItem.setShowTitle(false);
        actionItem.setCanvas(getActionLayout());


        StaticTextItem bundleVersionName = new StaticTextItem("bundleVersion");
        bundleVersionName.setTitle(MSG.view_bundle_bundleVersion());
        bundleVersionName.setValue("<a href=\""
            + LinkManager.getBundleVersionLink(bundle.getId(), deployment.getBundleVersion().getId()) + "\">"

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Examples of com.smartgwt.client.widgets.form.fields.CanvasItem

        VLayout layout = new VLayout();
        DynamicForm form = new DynamicForm();
        form.setWidth100();
        form.setHeight100();


        CanvasItem canvasItem = new CanvasItem();
        canvasItem.setColSpan(2);
        canvasItem.setShowTitle(false);
        canvasItem.setWidth("*");
        canvasItem.setHeight("*");


        Canvas canvas = new Canvas();
        canvas.setContents(contents);
        canvasItem.setCanvas(canvas);


        form.setItems(canvasItem);
        layout.addMember(form);


        PopupWindow window = new PopupWindow(layout);

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Examples of com.smartgwt.client.widgets.form.fields.CanvasItem

        case SERVER:
            kindItem.setValue(MSG.view_admin_plugins_server());
            break;
        }


        CanvasItem enabledItem = new CanvasItem("enabled", MSG.common_title_enabled());
        Img img = new Img(ImageManager.getAvailabilityIcon(plugin.isEnabled()), 16, 16);
        enabledItem.setCanvas(img);


        form.setItems(displayNameItem, nameItem, versionItem, ampsItem, md5Item, kindItem, descItem, pathItem,
            mtimeItem, enabledItem);


        SectionStackSection section = new SectionStackSection(MSG.common_title_details());

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Examples of com.smartgwt.client.widgets.form.fields.CanvasItem

            setShouldSaveValue(true);
            
            addShowValueHandler(new ShowValueHandler() {
                @Override
                public void onShowValue(ShowValueEvent event) {
                    CanvasItem item = (CanvasItem) event.getSource();
                    
                    ListGrid grid = (ListGrid)item.getCanvas();
                    if (grid==null) return;
                    
                    grid.deselectAllRecords();
                    String value = (String) event.getDisplayValue();
                    if (value==null) return;
                    
                    RecordList recordList = grid.getDataAsRecordList();
                    int index = recordList.findIndex(item.getFieldName(), value);
                    grid.selectRecord(index);
                }
            });
            
            setInitHandler(new FormItemInitHandler () {
                @Override
                public void onInit(FormItem item) {
                    ListGrid grid = new ListGrid();
                    grid.setWidth("*");
                    grid.setHeight("*");
                    grid.setLeaveScrollbarGap(false);
                    grid.setFields(((ListGridItem) item).getGridFields());
                    grid.setData(((ListGridItem)item).getGridData());
                    grid.setAutoFetchData(true);
                    
                    grid.addDrawHandler(new DrawHandler() {
                        @Override
                        public void onDraw(DrawEvent event) {
                            ListGrid grid = (ListGrid)event.getSource();
                            RecordList data = grid.getDataAsRecordList();
                            CanvasItem item = grid.getCanvasItem();
                            String value = (String)item.getValue();
                            String fieldName = item.getFieldName();
                            if (value != null) grid.selectRecord(data.find(fieldName, value));                            
                        }
                    });
                    
                    grid.addSelectionUpdatedHandler(new SelectionUpdatedHandler() {
                        @Override
                        public void onSelectionUpdated(SelectionUpdatedEvent event) {
                            ListGrid grid = (ListGrid) event.getSource();
                            CanvasItem item = grid.getCanvasItem();
                            ListGridRecord record = grid.getSelectedRecord();
                            if (record != null) {
                                item.storeValue(record.getAttribute(item.getFieldName()));
                            } else {
                                item.storeValue((com.smartgwt.client.data.Record)null);
                            }
                        }
                    });
                    
                    ((CanvasItem) item).setCanvas(grid);

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