Java Code Examples for org.eclipse.swt.widgets.ScrollBar#setSelection()
The following examples show how to use
org.eclipse.swt.widgets.ScrollBar#setSelection() .
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Example 1
| Source File: MethodsViewer.java From Eclipse-Postfix-Code-Completion with Eclipse Public License 1.0 | 6 votes |
|
/**
* Restores the state of the filter actions
* @param memento the memento
*/
public void restoreState(IMemento memento) {
fMemberFilterActionGroup.restoreState(memento);
getControl().setRedraw(false);
refresh();
getControl().setRedraw(true);
boolean showInherited= Boolean.valueOf(memento.getString(TAG_SHOWINHERITED)).booleanValue();
showInheritedMethods(showInherited);
boolean showDefiningTypes= Boolean.valueOf(memento.getString(TAG_SORTBYDEFININGTYPE)).booleanValue();
sortByDefiningType(showDefiningTypes);
ScrollBar bar= getTable().getVerticalBar();
if (bar != null) {
Integer vScroll= memento.getInteger(TAG_VERTICAL_SCROLL);
if (vScroll != null) {
bar.setSelection(vScroll.intValue());
}
}
}
Example 2
| Source File: ContextDialog.java From hop with Apache License 2.0 | 5 votes |
|
private void selectItem( Item item ) {
if ( this.selectedItem == item ) {
return;
}
this.selectedItem = item;
int nrColumns = calculateNrColumns();
int index = filteredItems.indexOf( item );
if ( item == null ) {
wlTooltip.setText( "" );
} else {
wlTooltip.setText( Const.NVL( item.getAction().getTooltip(), "" ) );
ScrollBar bar = wCanvas.getVerticalBar();
int row = Math.floorDiv( index, nrColumns );
// if ( row >= bar.getSelection()+bar.getPageIncrement() ) {
// // We scrolled down and need to scroll the scrollbar
// //
// bar.setSelection( Math.min(row, bar.getMaximum() ) );
// }
if ( row < bar.getSelection() ) {
// We scrolled up and need to scroll the scrollbar up
//
bar.setSelection( Math.max( row, bar.getMinimum() ) );
}
}
wCanvas.redraw();
}
Example 3
| Source File: Gallery.java From nebula with Eclipse Public License 2.0 | 5 votes |
|
/**
* Move the scrollbar to reflect the current visible items position.
*
* @param bar
* - the scroll bar to move
* @param clientSize
* - Client (visible) area size
* @param totalSize
* - Total Size
*/
private void updateScrollBarProperties(ScrollBar bar, int clientSize,
int totalSize) {
if (bar == null)
return;
bar.setMinimum(0);
bar.setPageIncrement(clientSize);
bar.setMaximum(totalSize);
bar.setThumb(clientSize);
// Let the group renderer use a custom increment value.
if (groupRenderer != null)
bar.setIncrement(groupRenderer.getScrollBarIncrement());
if (totalSize > clientSize) {
if (DEBUG)
System.out.println("Enabling scrollbar"); //$NON-NLS-1$
bar.setEnabled(true);
bar.setVisible(true);
bar.setSelection(translate);
// Ensure that translate has a valid value.
validateTranslation();
} else {
if (DEBUG)
System.out.println("Disabling scrollbar"); //$NON-NLS-1$
bar.setEnabled(false);
bar.setVisible(false);
bar.setSelection(0);
translate = 0;
}
}
Example 4
| Source File: CustomPreviewTable.java From birt with Eclipse Public License 1.0 | 5 votes |
|
private void scrollTable( ScrollBar widget, KeyEvent event )
{
int newSelectionValue = widget.getSelection( );
if ( event.keyCode == SWT.ARROW_LEFT )
{
newSelectionValue -= TableCanvas.SCROLL_HORIZONTAL_STEP;
}
else if ( event.keyCode == SWT.ARROW_RIGHT )
{
newSelectionValue += TableCanvas.SCROLL_HORIZONTAL_STEP;
}
else if ( event.keyCode == SWT.PAGE_UP
|| event.keyCode == SWT.ARROW_UP )
{
newSelectionValue -= 1;
}
else if ( event.keyCode == SWT.PAGE_DOWN
|| event.keyCode == SWT.ARROW_DOWN )
{
newSelectionValue += 1;
}
if ( newSelectionValue < widget.getMinimum( ) )
{
newSelectionValue = widget.getMinimum( );
}
else if ( newSelectionValue > widget.getMaximum( ) )
{
newSelectionValue = widget.getMaximum( );
}
widget.setSelection( newSelectionValue );
Event newEvent = new Event( );
newEvent.widget = widget;
newEvent.type = SWT.Selection;
newEvent.data = event.data;
widget.notifyListeners( SWT.Selection, newEvent );
}
Example 5
| Source File: ScrollView.java From tracecompass with Eclipse Public License 2.0 | 4 votes |
|
/**
* Setup scroll bar using contents, visible and scroll bar mode properties.
*/
protected void updateScrollBarsValues() {
/* update vertical scrollbar */
ScrollBar b = getVerticalBar();
if (b != null) {
b.setMinimum(0);
b.setMaximum(getContentsHeight());
b.setThumb(getVisibleHeight());
b.setPageIncrement(getVisibleHeight());
b.setIncrement(fVertScrollbarIncrement);
b.setSelection(getContentsY());
}
// update "hidden" vertical bar too
b = fViewControl.getVerticalBar();
if (b != null) {
b.setMinimum(0);
b.setMaximum(getContentsHeight());
b.setThumb(getVisibleHeight());
b.setPageIncrement(getVisibleHeight());
b.setIncrement(fVertScrollbarIncrement);
b.setSelection(getContentsY());
}
/* update horizontal scrollbar */
b = getHorizontalBar();
if (b != null) {
b.setMinimum(0);
b.setMaximum(getContentsWidth());
b.setThumb(getVisibleWidth());
b.setSelection(getContentsX());
b.setPageIncrement(getVisibleWidth());
b.setIncrement(fHorScrollbarIncrement);
}
// update "hidden" horizontal bar too
b = fViewControl.getHorizontalBar();
if (b != null) {
b.setMinimum(0);
b.setMaximum(getContentsWidth());
b.setThumb(getVisibleWidth());
b.setSelection(getContentsX());
b.setPageIncrement(getVisibleWidth());
b.setIncrement(fHorScrollbarIncrement);
}
}
Example 6
| Source File: TypeHierarchyViewPart.java From Eclipse-Postfix-Code-Completion with Eclipse Public License 1.0 | 4 votes |
|
/**
* Restores the state of the type hierarchy view from the memento.
*
* @param memento the memento
* @param input the input java elements
* @since 3.7
*/
final void doRestoreState(IMemento memento, IJavaElement[] input) {
synchronized (this) {
if (fRestoreStateJob == null) {
return;
}
fRestoreStateJob= null;
}
fWorkingSetActionGroup.restoreState(memento);
setKeepShowingEmptyViewers(false);
setInputElements(input);
Integer viewerIndex= memento.getInteger(TAG_VIEW);
if (viewerIndex != null) {
setHierarchyMode(viewerIndex.intValue());
}
Integer layout= memento.getInteger(TAG_LAYOUT);
if (layout != null) {
setViewLayout(layout.intValue());
}
Integer val= memento.getInteger(TAG_EDITOR_LINKING);
if (val != null) {
setLinkingEnabled(val.intValue() != 0);
}
Integer showQualified= memento.getInteger(TAG_QUALIFIED_NAMES);
if (showQualified != null) {
showQualifiedTypeNames(showQualified.intValue() != 0);
}
updateCheckedState();
Integer ratio= memento.getInteger(TAG_RATIO);
if (ratio != null) {
fTypeMethodsSplitter.setWeights(new int[] { ratio.intValue(), 1000 - ratio.intValue() });
}
ScrollBar bar= getCurrentViewer().getTree().getVerticalBar();
if (bar != null) {
Integer vScroll= memento.getInteger(TAG_VERTICAL_SCROLL);
if (vScroll != null) {
bar.setSelection(vScroll.intValue());
}
}
fMethodsViewer.restoreState(memento);
}
Example 7
| Source File: IconCanvas.java From birt with Eclipse Public License 1.0 | 4 votes |
|
/**
* SYNC the scroll-bars with the image.
*/
public void syncScrollBars( )
{
if ( sourceImage == null )
{
redraw( );
return;
}
AffineTransform af = transform;
double sx = af.getScaleX( ), sy = af.getScaleY( );
double tx = af.getTranslateX( ), ty = af.getTranslateY( );
if ( tx > 0 )
tx = 0;
if ( ty > 0 )
ty = 0;
Rectangle imageBound = sourceImage.getBounds( );
int cw = getClientArea( ).width, ch = getClientArea( ).height;
ScrollBar horizontal = getHorizontalBar( );
if ( horizontal != null )
{
horizontal.setIncrement( ( getClientArea( ).width / 100 ) );
horizontal.setPageIncrement( getClientArea( ).width );
if ( imageBound.width * sx > cw )
{
horizontal.setMaximum( (int) ( imageBound.width * sx ) );
horizontal.setEnabled( true );
if ( ( (int) -tx ) > horizontal.getMaximum( ) - cw )
tx = -horizontal.getMaximum( ) + cw;
}
else
{
horizontal.setEnabled( false );
tx = ( cw - imageBound.width * sx ) / 2;
}
horizontal.setSelection( (int) ( -tx ) );
horizontal.setThumb( ( getClientArea( ).width ) );
}
ScrollBar vertical = getVerticalBar( );
if ( vertical != null )
{
vertical.setIncrement( ( getClientArea( ).height / 100 ) );
vertical.setPageIncrement( ( getClientArea( ).height ) );
if ( imageBound.height * sy > ch )
{
vertical.setMaximum( (int) ( imageBound.height * sy ) );
vertical.setEnabled( true );
if ( ( (int) -ty ) > vertical.getMaximum( ) - ch )
ty = -vertical.getMaximum( ) + ch;
}
else
{
vertical.setEnabled( false );
ty = ( ch - imageBound.height * sy ) / 2;
}
vertical.setSelection( (int) ( -ty ) );
vertical.setThumb( ( getClientArea( ).height ) );
}
af = AffineTransform.getScaleInstance( sx, sy );
af.preConcatenate( AffineTransform.getTranslateInstance( tx, ty ) );
transform = af;
redraw( );
}
Example 8
| Source File: ImageCanvas.java From birt with Eclipse Public License 1.0 | 4 votes |
|
/**
* SYNC the scroll-bars with the image.
*/
public void syncScrollBars( )
{
if ( sourceImage == null )
{
redraw( );
return;
}
AffineTransform af = transform;
double sx = af.getScaleX( ), sy = af.getScaleY( );
double tx = af.getTranslateX( ), ty = af.getTranslateY( );
if ( tx > 0 )
tx = 0;
if ( ty > 0 )
ty = 0;
Rectangle imageBound = sourceImage.getBounds( );
int cw = getClientArea( ).width, ch = getClientArea( ).height;
ScrollBar horizontal = getHorizontalBar( );
if ( horizontal != null )
{
horizontal.setIncrement( (int) ( getClientArea( ).width / 100 ) );
horizontal.setPageIncrement( getClientArea( ).width );
if ( imageBound.width * sx > cw )
{
horizontal.setMaximum( (int) ( imageBound.width * sx ) );
horizontal.setEnabled( true );
if ( ( (int) -tx ) > horizontal.getMaximum( ) - cw )
tx = -horizontal.getMaximum( ) + cw;
}
else
{
horizontal.setEnabled( false );
tx = ( cw - imageBound.width * sx ) / 2;
}
horizontal.setSelection( (int) ( -tx ) );
horizontal.setThumb( (int) ( getClientArea( ).width ) );
}
ScrollBar vertical = getVerticalBar( );
if ( vertical != null )
{
vertical.setIncrement( (int) ( getClientArea( ).height / 100 ) );
vertical.setPageIncrement( (int) ( getClientArea( ).height ) );
if ( imageBound.height * sy > ch )
{
vertical.setMaximum( (int) ( imageBound.height * sy ) );
vertical.setEnabled( true );
if ( ( (int) -ty ) > vertical.getMaximum( ) - ch )
ty = -vertical.getMaximum( ) + ch;
}
else
{
vertical.setEnabled( false );
ty = ( ch - imageBound.height * sy ) / 2;
}
vertical.setSelection( (int) ( -ty ) );
vertical.setThumb( (int) ( getClientArea( ).height ) );
}
af = AffineTransform.getScaleInstance( sx, sy );
af.preConcatenate( AffineTransform.getTranslateInstance( tx, ty ) );
transform = af;
redraw( );
}
Example 9
| Source File: BaseOutlinePage.java From Pydev with Eclipse Public License 1.0 | 4 votes |
|
/**
* called when model has structural changes, refreshes all items underneath
* @param items: items to refresh, or null for the whole tree
* tries to preserve the scrolling
*/
public void refreshItems(Object[] items) {
try {
unlinkAll();
TreeViewer viewer = getTreeViewer();
if (viewer != null) {
Tree treeWidget = viewer.getTree();
if (isDisconnectedFromTree()) {
return;
}
ScrollBar bar = treeWidget.getVerticalBar();
int barPosition = 0;
if (bar != null) {
barPosition = bar.getSelection();
}
if (items == null) {
if (isDisconnectedFromTree()) {
return;
}
viewer.refresh();
} else {
if (isDisconnectedFromTree()) {
return;
}
for (int i = 0; i < items.length; i++) {
viewer.refresh(items[i]);
}
}
if (barPosition != 0) {
bar.setSelection(Math.min(bar.getMaximum(), barPosition));
}
}
} catch (Throwable e) {
//things may be disposed...
Log.log(e);
} finally {
relinkAll();
}
}
