I cannot figure out how to correctly set the height of my row composite. I would like the following code snippet to display only one row of data. Any additional rows would be seen by using the scrollbar. I have tried using rowContainer.setSize() but to no avail. Any help would be appreciated.
Please note that the scrolled composite is not directly linked to the rowContainer composite and contains other composites as well.
private void doStuff(final Composite parentContainer) {
final ScrolledComposite scrolledComposite = new ScrolledComposite(
parentContainer, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
scrolledComposite.setExpandHorizontal(true);
scrolledComposite.setExpandVertical(true);
scrolledComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL,
true, true));
final Composite borderComposite = new Composite(scrolledComposite,
SWT.BORDER);
borderComposite.setLayout(new GridLayout(1, false));
borderComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true,
true));
scrolledComposite.setContent(borderComposite);
scrolledComposite.setSize(borderComposite.computeSize(SWT.DEFAULT,
SWT.DEFAULT));
// Create a container for a label and button
final Composite labelAndAddButtonContainer = new Composite(
borderComposite, SWT.NONE);
labelAndAddButtonContainer.setLayout(new GridLayout(2, false));
labelAndAddButtonContainer.setLayoutData(new GridData(SWT.LEFT,
SWT.TOP, false, false));
// Create a container to hold all dynamic rows
final Composite rowContainer = new Composite(borderComposite, SWT.NONE);
rowContainer.setLayout(new GridLayout(1, false));
rowContainer.setLayoutData(new GridData(SWT.FILL, SWT.NONE, true, false));
// Create at least one row.
final Collection<String> rowData = getRowData();
if (rowData.isEmpty()) {
createRow(scrolledComposite, rowContainer, "");
} else {
for (final String text : rowData) {
createRow(scrolledComposite, rowContainer, text);
}
// How do I adjust for the height so that only 1 row shows,
// and scrollbars appear if there is more than one row?
}
// Create a button
final Button addButton = new Button(labelAndAddButtonContainer,
SWT.PUSH);
addButton.setImage(someImage);
final Label label = new Label(labelAndAddButtonContainer, SWT.NONE);
label.setText("SOME_LABEL");
}
Related
I read all old questions related to this issue but I didn't solve it.
Could someone helps me with this because I'm already run out of ideas.
Here is my code:
ScrolledComposite panelHolder = new ScrolledComposite(composite, SWT.H_SCROLL | SWT.V_SCROLL);
panelHolder.setLayout(new FillLayout());
panelHolder.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
FormToolkit toolkit = UIConstants.getToolkit();
toolkit.setBorderStyle(SWT.NONE);
tableViewer = new TableViewer(toolkit.createTable(panelHolder, border ? SWT.BORDER : SWT.NONE));
tableViewer.setContentProvider(new TableContentProvider());
ColumnViewerToolTipSupport.enableFor(tableViewer);
TableViewerColumn viewerColumn = new TableViewerColumn(tableViewer, SWT.NONE);
viewerColumn.setLabelProvider(labelProvider);
Table table = tableViewer.getTable();
table.setLinesVisible(false);
addControlListener(viewerColumn);
panelHolder.setContent(table);
panelHolder.setExpandHorizontal(true);
panelHolder.setExpandVertical(true);
panelHolder.setMinSize(table.computeSize(SWT.DEFAULT, SWT.DEFAULT));
panelHolder.layout();
I'm developing a plugin for eclipse and I'm struggling to use ScrolledComposite as well as making it take up the remaining space.
The parent layout is a 2-column Grid:
#Override
public void createPartControl(Composite parent) {
parent.setLayout(new GridLayout(2, false));
// other views etc
}
The ScrolledComposite is created like so (slightly abbreviated):
private void fillScroll() {
if (scroll != null) {
scroll.dispose();
}
scroll = new ScrolledComposite(parent, SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER);
GridData gd = new GridData();
gd.horizontalSpan = 2;
scroll.setLayoutData(gd);
Composite innerContainer = new Composite(scroll, 0);
innerContainer.setLayout(new GridLayout(1, false));
// for loop that adds widgets to innerContainer
scroll.setExpandHorizontal(true);
scroll.setExpandVertical(true);
scroll.setContent(innerContainer);
scroll.setSize(innerContainer.computeSize(SWT.DEFAULT, SWT.DEFAULT));
parent.layout(true);
}
The list of questions are the widgets added in the for loop and are contained by innerContainer.
Expectation: Since innerContainer is too large to fit in the parent, there should be scroll bars.
What actually happens: There are no scroll bars.
How do I fix this problem?
The GridData on the ScrolledComposite needs to have grabExcessVerticalSpace set to true. I suggest you to use the extended constructor in order to clearly define how it should be displayed, for example:
GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1);
Option A: change scroll.setSize to scroll.setMinSize:
scroll.setMinSize(innerContainer.computeSize(SWT.DEFAULT, SWT.DEFAULT));
or, Option B: remove scroll.setExpandHorizontal and scroll.setExpandVertical and change scroll.setSize to innerContainer.setSize:
innerContainer.setSize(innerContainer.computeSize(SWT.DEFAULT, SWT.DEFAULT));
I have a wizard with table and button components. When I click to the add button I choose from dialog window what items should be added to the table. I confirm items, and then this ones appears in the table with scrollbar. But if I resize the wizard, the table size is changed. How to fix it?
Table before resize:
Table after wizard resize
Composite compositeArea = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout();
layout.numColumns = 3;
compositeArea.setLayout(layout);
Table table = new Table(compositeArea, SWT.BORDER | SWT.V_SCROLL);
new TableColumn(someList, SWT.NULL);
table.setLayoutData(new GridData(HORIZONTAL_ALIGN_FILL | GRAB_HORIZONTAL));
** Please note that the use of HORIZONTAL_ALIGN_FILL and GRAB_HORIZONTAL is discouraged. Instead, you should be using the public GridData(int, int, boolean, boolean) constructor. **
To slighly simplify your code snippet (only one column on the composite, and only one default table column - see full code below):
// ...
final Composite compositeArea = new Composite(parent, SWT.NONE);
compositeArea.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
compositeArea.setLayout(new GridLayout());
final Table table = new Table(compositeArea, SWT.BORDER | SWT.V_SCROLL);
table.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL));
// ...
...and we see that the Table isn't fitting in the available space or showing the scrollbar as expected, and the same occurs when the Shell is resized.
In answer to your question, this is because the layout data of the Table doesn't know how to layout vertically - you've only specified two horizontal style attributes.
If we instead use the suggested constructor:
table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
...the Table takes the available space correct, shows the scrollbar, and updates correctly when the Shell is resized. Using the layout data, we've told the Table to fill the available horizontal space, and the Table will display the scrollbar if necessary.
Full example:
public class TableResizeTest {
private final Display display;
private final Shell shell;
public TableResizeTest() {
display = new Display();
shell = new Shell(display);
shell.setLayout(new FillLayout());
shell.setMaximized(true);
final Composite parent = new Composite(shell, SWT.NONE);
parent.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
parent.setLayout(new GridLayout());
// -- snippet --
final Composite compositeArea = new Composite(parent, SWT.NONE);
compositeArea.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
compositeArea.setLayout(new GridLayout());
final Table table = new Table(compositeArea, SWT.BORDER | SWT.V_SCROLL);
// table.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL));
table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
// -------------
for (int i = 0; i < 20; ++i) {
new TableItem(table, SWT.NONE).setText(String.valueOf(i));
}
}
public void run() {
shell.setSize(300, 300);
shell.open();
while (!shell.isDisposed()) {
if (display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
public static void main(final String... args) {
new TableResizeTest().run();
}
}
I'm trying to wrap this text automatically, but it doesn't wrap. I'm trying with the code below, not sure what's wrong with the code. This is
protected Control createContents(Composite parent){
Composite composite = new Composite(parent, SWT.WRAP);
composite.setLayout(new GridLayout());
composite.setLayoutData(new GridData(SWT.HORIZONTAL, SWT.TOP, false, false));
Group group = new Group(composite, SWT.NONE);
group.setText("my group");
group.setLayout(new GridLayout(2, false));
group.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));
Button button = new Button(group2,SWT.CHECK);
GridData data = new GridData(SWT.HORIZONTAL, SWT.TOP, false, true, 1, 1);
button.setLayoutData(data);
Label label= new Label(group, SWT.WRAP);
data = new GridData(GridData.FILL_HORIZONTAL);
label.setLayoutData(data);
label.setText("my long text is very long, I need to wrap this very long text lalalalalalalalalalalalalala");
}
The composite's layoutdata also needs to have grabExcessHorizontal space set to true, i.e.:
composite.setLayoutData(new GridData(SWT.NONE, SWT.TOP, true, false));
I think the wrapping label and all of its parent composites need to have that.
By the way, the style-bit SWT.WRAP doesn't make sense for class Composite.
I have a JFace dialog which contains a Label , Text and Button side by side respectively.
I have set the initial size of the dialog and in my machine i have the dialog in the way i wanted.
But on another machine i only partially see the button.
This is how i have overriden the createDialogArea method.
#Override
protected Control createDialogArea(Composite parent)
{
Composite container = (Composite) super.createDialogArea(parent);
GridLayout gridLayout = (GridLayout) container.getLayout();
gridLayout.numColumns = 3;
new Label(container, SWT.NONE);
new Label(container, SWT.NONE);
new Label(container, SWT.NONE);
Label fileLabel = new Label(container, SWT.NONE);
fileLabel.setText("File Name :");
fileText = new Text(container, SWT.BORDER);
GridData fileTextGD = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1);
fileTextGD.widthHint = 319;
fileText.setLayoutData(fileTextGD);
fileText.setEnabled(false);
browseButton = new Button(container, SWT.NONE);
GridData browseButtonGD = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
browseButtonGD.widthHint = 28;
browseButton.setLayoutData(browseButtonGD);
browseButton.setText("...");
return container;
}
What would be the problem?
Please suggest
The widthHint values you are using are probably too small for the font used on the second machine. Do not use widthHint, let the GridLayout work out the sizes for you.