I'm using a standard swt table which, as you may know, by default when an item is selected is colored blue (windows standard). When the selection is inactive, it turns light gray. I would like to override both colors... I've searched all over the web but could only find some very old code which no longer seems to work with the table widget.
Below is some sample code I was trying to overwrite the default color but it doesn't seem to be working (please excuse the dirty code, was just trying to get something to work):
table.addSelectionListener(new SelectionListener() {
#Override
public void widgetSelected(SelectionEvent event) {
Color rowSelectionColor =
new Color(Display.getCurrent(),new RGB(235, 200, 211));
TableItem item =(TableItem)event.item;
item.setBackground(0,rowSelectionColor);
item.setBackground(1,rowSelectionColor);
item.setBackground(2,rowSelectionColor);
}
#Override
public void widgetDefaultSelected(SelectionEvent event) {
Color rowSelectionColor =
new Color(Display.getCurrent(),new RGB(235, 200, 211));
TableItem item =(TableItem)event.item;
item.setBackground(0,rowSelectionColor);
item.setBackground(1,rowSelectionColor);
item.setBackground(2,rowSelectionColor);
}
});
Any ideas would be greaaatly massively appreciated :D
If you want to go with a TableViewer to manage your table, you can use a StyledCellLabelProvider to determine the colors/fonts/etc for individual cells. The TableViewer will take care of the "owner draw" aspects for you. The biggest hassle is setting up the ContentProvider, LabelProvider, and input classes that go with the TableViewer.
Related
I have a requirement wherein on a single click in the cell, normal editing must be possible and on double clicking in the cell a dialog should open for editing the cell. The two are possible individually. I see a method "boolean supportMultiEdit(IConfigRegistry configRegistry, List configLabels)" but there is no example to show the working. Has anyone used it or can show it's configuration.
Multi edit means it is possible to edit multiple cells at once. This is of course done in an editor, as it makes no sense to perform multi edit inline. You should rather have a look at openInline(IConfigRegistry, List<String>) or even better the EditConfigAttributes#OPEN_IN_DIALOG to solve what you are looking for.
But you are actually seeking for a way to handle opening an editor differently on different UI interactions. So you need to register the corresponding UI bindings. This is already discussed in the NatTable Forum.
And the EditorExample shows quite a lot of possible configuration options available for editing. And almost every editable example shows multi editing capabilities. You simply need to select multiple cells you want to edit and then start typing or pressing F2.
The following code would do the trick with a configuration based on a label that is added in the UI binding action:
public class OpenEditorConfiguration extends AbstractRegistryConfiguration {
#Override
public void configureRegistry(IConfigRegistry configRegistry) {
configRegistry.registerConfigAttribute(
EditConfigAttributes.OPEN_IN_DIALOG,
Boolean.TRUE,
DisplayMode.EDIT,
"open_in_dialog");
}
#Override
public void configureUiBindings(UiBindingRegistry uiBindingRegistry) {
uiBindingRegistry.registerDoubleClickBinding(
new CellEditorMouseEventMatcher(GridRegion.BODY),
new IMouseAction() {
#Override
public void run(NatTable natTable, MouseEvent event) {
int columnPosition = natTable.getColumnPositionByX(event.x);
int rowPosition = natTable.getRowPositionByY(event.y);
ILayerCell cell = natTable.getCellByPosition(columnPosition, rowPosition);
cell.getConfigLabels().add("open_in_dialog");
natTable.doCommand(new EditCellCommand(
natTable,
natTable.getConfigRegistry(),
cell));
}
});
}
}
I am using wicket 1.4.17.I went through quite a few posts on this but couldn't understand it clearly. How can I make an accordion in wicket?
Basically what I am looking for is kind of a table with 1 column and multiple rows where each row can be expanded or collapsed, and each row on expansion shows another table of data.
The following code example should help you get started.
Feel free to ask questions if something seems unclear. Of course you could go even deeper in your DetailPanel (that's why I would suggest that approach)
AbstractRepeater exampleView = new ListView<Object>("exampleView", myList) {
#Override
protected void populateItem(ListItem<Object> item) {
//you can use a own panel, fragment, etc to illustrate your detail view here
//you could also use one WebMarkupContainer for visibility - but I'd assume this will get very messy, very soon
final DetailPanel detailPanel = new DetailPanel("detailPanel", item.getModel());
detailPanel.setVisible(false);
detailPanel.setOutputMarkupPlaceholderTag(true);
item.add(detailPanel);
//add AjaxLink to switch between the visibilty of the detailView
AjaxLink<Void> detailLink = new AjaxLink<Void>("detailLink") {
#Override
public void onClick(AjaxRequestTarget target) {
detailPanel.setVisible(!detailPanel.isVisible());
target.addComponent(detailPanel);
}
};
item.add(detailLink);
}
};
add(exampleView);
We have a requirement of accessibility in our next application and we will need customized themes for this.
The first goal to achieve is to be able to increase and decrease the font size in the application. For this we will have two buttons, one to increase, the other to decrease the size of text in all components. You can use Enterprise Blue as a reference theme. You can see an example of this at the URL: http://emag.governoeletronico.gov.br/emag/#. You can click on "Aumentar Fonte " and "Diminuir Fonte".
Any idea how can i acheive this in GWT/SmartGWT
thanks
Short answer is RootPanel.getBodyElement().
The most Convenient way is to apply classes on body element.
There are multiple ways to do it.
RootPanel.get("body").setStyleName("newbodyclass"); //Not recommended.
Efficient way
RootPanel.getBodyElement().setClassName("newbodyclass"); //Recommended
Few new ways:
Document.get().getBody().setClassName("newbodyclass");
Finally best for you problem:
Document.get().getBody().getStyle().setFontSize(value, unit);
static Label lblNewLabel = new Label("New label");
Button btnNewButton = new Button("New button");
private int fontSize=10;
btnNewButton.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
fontSize += 5;
lblNewLabel.getElement().getStyle().setFontSize(fontSize , Unit.PX);
}
});
When I select a row in a CellTable which contains several columns, the whole row gets colored in yellow. It does not depend on which area of the row I click (which column of the row).
What I try to do is to keep the selected row colored in yellow as long as no other row of this very table is selected. At the moment, as soon as I click somewhere else in the browser, the row gets back its original color.
I tried to use a selection model, but this changed nothing. Do you have any advise or is this simply not possible, since the focus is managed by the browser? The behavior is the same in the Google showcase for the CellTable...
The selection model actually does what you want to do: it paints a row blue and the row does not change color if you click elsewhere in the page. (Only when another row is selected)
There are 2 selection models:
One that lets you select only one row, and another one that lets you select multiple rows.
MultiSelectionModel<Row> selectionModel = new MultiSelectionModel<Row>();
table.setSelectionModel(selectionModel);
SingleSelectionModel<Row> selectionModel = new SingleSelectionModel<Row>();
table.setSelectionModel(selectionModel);
The solution of user905374 did actually work. I mentioned in my first post that I already tried the solution with a selectionModel and that it did not work. This was partially true. It does work, but only if the table does NOT contain a CheckboxCell.
Following a working and the not working example. I think this might be a bug, but I am not sure if I miss something.
final CellTable<LicenceDto> licenseTable = new CellTable<LicenceDto>();
final SingleSelectionModel<LicenceDto> selectionModel = new SingleSelectionModel<LicenceDto>();
licenseTable.setSelectionModel(selectionModel);
//--- If I add this column, the selection does work.
Column<LicenceDto, String> workingColumn = new Column<LicenceDto, String>(new TextCell()) {
#Override
public String getValue(LicenceDto object) {
return "Works";
}
};
workingColumn.setFieldUpdater(new FieldUpdater<LicenceDto, String>() {
#Override
public void update(int index, LicenceDto object, String value) {
;
}
});
licenseTable.addColumn(workingColumn);
//--- If I add this column, the selection does NOT work anymore.
Column<LicenceDto, Boolean> notWorkingColumn = new Column<LicenceDto, Boolean>(new CheckboxCell(true, true)) {
#Override
public Boolean getValue(LicenceDto object) {
return object.getEnabled();
}
};
notWorkingColumn.setFieldUpdater(new FieldUpdater<LicenceDto, Boolean>() {
#Override
public void update(int index, LicenceDto object, Boolean value) {
presenter.enableLicense(object, value);
}
});
licenseTable.addColumn(notWorkingColumn);
You can even combine multiple cells and add them to the table (e.g. LinkActionCell etc). As long as there is no CheckboxCell, the blue selection with the SingleSelectionModel does work like a charm. Does anyone see what I do wrong with this CheckboxCell or is there a bug?
UPDATE
It was simply a usage error of me. The problem was that I set handlesSelection to true (second parameter of the CheckboxCell constructor) even thought I don't handle anything. Setting it to false solves the problem.
Bottomline: Use a selection model (e.g. SingleSelectionModel) and do not set the handlesSelection parameter to true of the CheckboxCell constructor to true, if you don't handle the selection by yourself.
You should observe the Showcase demo again. This time use the checkbox on the left most column i.e the first column. On selection the row turns blue indicating the row selection is made. This is when you have SelectionModel set up. Click on the page anywhere outside the CellTable/DataGrid the selection is not changed.
Now, instead of choosing the row via checkbox from first column, you click on a row in any other column. The row turns yellow. Click on the page anywhere outside the CellTable/DataGrid the focus/yellow is lost.
"colored in yellow" indicates row is under focus and being edited and not selected.
Note - you can force row selection by using click events per cell.
Try something like this:
CellTable table;
YourDataObject object = new YourDataObject(...);
SingleSelectionModel<YourDataObject> selectionModel =
new SingleSelectionModel<YourDataObject>();
table.setSelectionModel(selectionModel);
...
table.setSelected(object, true);
Use MultiSelectionModel if you wish more than one line to be highlighted.
Store the selected row's index. When user selects row, change row's style to some "selected-style" appropriate for your case (defined in your css file) and remove selected style from the previously selected row. Also don't forget to update selected row's index.
If you provide some code from the original version I help you out with some code with pleasure.
I want to click on an image and therefore want to register (e.g.) a ClickHandler. The image I get from a ClientResource. This works so far to set the image into a table cell:
MyResources.INSTANCE.css().ensureInjected();
Image colorImage = new Image( MyResources.INSTANCE.colorImage() );
Element colorImageElement = colorImage.getElement();
colorImage.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
System.out.println( event );
}
} );
TableElement table = Document.get().createTableElement();
TableRowElement headRow = table.insertRow(-1);
headRow.insertCell(-1).appendChild( colorImageElement );
RootPanel.get().getElement().appendChild( table );
How can I add a listener to the icon? I tried ClickHandler and to put the image on a PushButton and get the Element from this PushButton but all don't work.
But mind, if I add the widget (Image is a Widget) to a panel it works!
RootPanel.get().add( colorImage );
But I am not working with widgets here but with the Element. So the handler disappears and that's the point I don't get how to preserve this added handler information.
In the end I would like to build a table with different rows where I can click on the icon I get a popup menu and thereby change the colour of the row.
You should be able to just add a ClickHandler (or a MouseDownHandler if that fits your needs better).
Like this:
colorImage.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
// Do something....
}
});
Don't unwrap your widget and append only the DOM elements. The Widget class allows your code to refer to both elements and events at the same time, and deals with possible memory leaks, as well as grouping your code in logical ways.
This might make sense for other frameworks, but in GWT you almost always want to work with the Widgets directly, adding them together, then appending them to the RootPanel.
If you really want to use a html table to build this up, look at the com.google.gwt.user.client.ui.HTMLTable subclasses, com.google.gwt.user.client.ui.Grid and com.google.gwt.user.client.ui.FlexTable. This probably should never be necessary, unless you are adding multiple items to the table - when trying to specify layouts, use actual layout classes.
did you tried to add image.sinkEvents( Event.ONCLICK | Event.MOUSEEVENTS )?
The image has to be inside a focus widget. I don't know why that is, but somewhere the events don't get propagated right and the DOM events don't fire.