List of usage examples for org.eclipse.swt.custom ScrolledComposite setOrigin
public void setOrigin(int left, int top)
From source file:org.eclipse.swt.snippets.Snippet167.java
public static void main(String[] args) { Display display = new Display(); Shell shell = new Shell(display); shell.setText("Snippet 167"); shell.setLayout(new FillLayout()); final ScrolledComposite sc1 = new ScrolledComposite(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL); Button button1 = new Button(sc1, SWT.PUSH); button1.setText("Button 1"); button1.setSize(400, 300);// w w w . ja va 2 s. com sc1.setContent(button1); final ScrolledComposite sc2 = new ScrolledComposite(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL); Button button2 = new Button(sc2, SWT.PUSH); button2.setText("Button 2"); button2.setSize(300, 400); sc2.setContent(button2); final ScrollBar vBar1 = sc1.getVerticalBar(); final ScrollBar vBar2 = sc2.getVerticalBar(); final ScrollBar hBar1 = sc1.getHorizontalBar(); final ScrollBar hBar2 = sc2.getHorizontalBar(); SelectionListener listener1 = widgetSelectedAdapter(e -> { int x = hBar1.getSelection() * (hBar2.getMaximum() - hBar2.getThumb()) / Math.max(1, hBar1.getMaximum() - hBar1.getThumb()); int y = vBar1.getSelection() * (vBar2.getMaximum() - vBar2.getThumb()) / Math.max(1, vBar1.getMaximum() - vBar1.getThumb()); sc2.setOrigin(x, y); }); SelectionListener listener2 = widgetSelectedAdapter(e -> { int x = hBar2.getSelection() * (hBar1.getMaximum() - hBar1.getThumb()) / Math.max(1, hBar2.getMaximum() - hBar2.getThumb()); int y = vBar2.getSelection() * (vBar1.getMaximum() - vBar1.getThumb()) / Math.max(1, vBar2.getMaximum() - vBar2.getThumb()); sc1.setOrigin(x, y); }); vBar1.addSelectionListener(listener1); hBar1.addSelectionListener(listener1); vBar2.addSelectionListener(listener2); hBar2.addSelectionListener(listener2); shell.setSize(400, 300); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); }
From source file:ScrollBarSelectionListener.java
public static void main(String[] args) { Display display = new Display(); Shell shell = new Shell(display); shell.setLayout(new FillLayout()); final ScrolledComposite sc1 = new ScrolledComposite(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL); Button button1 = new Button(sc1, SWT.PUSH); button1.setText("Button 1"); button1.setSize(400, 300);/*from w w w .jav a 2 s. com*/ sc1.setContent(button1); final ScrolledComposite sc2 = new ScrolledComposite(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL); Button button2 = new Button(sc2, SWT.PUSH); button2.setText("Button 2"); button2.setSize(300, 400); sc2.setContent(button2); final ScrollBar vBar1 = sc1.getVerticalBar(); final ScrollBar vBar2 = sc2.getVerticalBar(); final ScrollBar hBar1 = sc1.getHorizontalBar(); final ScrollBar hBar2 = sc2.getHorizontalBar(); SelectionListener listener1 = new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { int x = hBar1.getSelection() * (hBar2.getMaximum() - hBar2.getThumb()) / Math.max(1, hBar1.getMaximum() - hBar1.getThumb()); int y = vBar1.getSelection() * (vBar2.getMaximum() - vBar2.getThumb()) / Math.max(1, vBar1.getMaximum() - vBar1.getThumb()); sc2.setOrigin(x, y); } }; SelectionListener listener2 = new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { int x = hBar2.getSelection() * (hBar1.getMaximum() - hBar1.getThumb()) / Math.max(1, hBar2.getMaximum() - hBar2.getThumb()); int y = vBar2.getSelection() * (vBar1.getMaximum() - vBar1.getThumb()) / Math.max(1, vBar2.getMaximum() - vBar2.getThumb()); sc1.setOrigin(x, y); } }; vBar1.addSelectionListener(listener1); hBar1.addSelectionListener(listener1); vBar2.addSelectionListener(listener2); hBar2.addSelectionListener(listener2); shell.setSize(400, 300); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); }
From source file:org.eclipse.swt.snippets.Snippet296.java
public static void main(String[] args) { final Display display = new Display(); Shell shell = new Shell(display); shell.setText("Snippet 296"); shell.setBounds(10, 10, 300, 300);/* w w w . ja va 2 s. c o m*/ final ScrolledComposite sc = new ScrolledComposite(shell, SWT.VERTICAL); sc.setBounds(10, 10, 280, 200); final int clientWidth = sc.getClientArea().width; final Tree tree = new Tree(sc, SWT.NONE); for (int i = 0; i < 99; i++) { TreeItem item = new TreeItem(tree, SWT.NONE); item.setText("item " + i); new TreeItem(item, SWT.NONE).setText("child"); } sc.setContent(tree); int prefHeight = tree.computeSize(SWT.DEFAULT, SWT.DEFAULT).y; tree.setSize(clientWidth, prefHeight); /* * The following listener ensures that the Tree is always large * enough to not need to show its own vertical scrollbar. */ tree.addTreeListener(new TreeListener() { @Override public void treeExpanded(TreeEvent e) { int prefHeight = tree.computeSize(SWT.DEFAULT, SWT.DEFAULT).y; tree.setSize(clientWidth, prefHeight); } @Override public void treeCollapsed(TreeEvent e) { int prefHeight = tree.computeSize(SWT.DEFAULT, SWT.DEFAULT).y; tree.setSize(clientWidth, prefHeight); } }); /* * The following listener ensures that a newly-selected item * in the Tree is always visible. */ tree.addSelectionListener(widgetSelectedAdapter(e -> { TreeItem[] selectedItems = tree.getSelection(); if (selectedItems.length > 0) { Rectangle itemRect = selectedItems[0].getBounds(); Rectangle area = sc.getClientArea(); Point origin = sc.getOrigin(); if (itemRect.x < origin.x || itemRect.y < origin.y || itemRect.x + itemRect.width > origin.x + area.width || itemRect.y + itemRect.height > origin.y + area.height) { sc.setOrigin(itemRect.x, itemRect.y); } } })); /* * The following listener scrolls the Tree one item at a time * in response to MouseWheel events. */ tree.addListener(SWT.MouseWheel, event -> { Point origin = sc.getOrigin(); if (event.count < 0) { origin.y = Math.min(origin.y + tree.getItemHeight(), tree.getSize().y); } else { origin.y = Math.max(origin.y - tree.getItemHeight(), 0); } sc.setOrigin(origin); }); Button downButton = new Button(shell, SWT.PUSH); downButton.setBounds(10, 220, 120, 30); downButton.setText("Down 10px"); downButton.addListener(SWT.Selection, event -> sc.setOrigin(0, sc.getOrigin().y + 10)); Button upButton = new Button(shell, SWT.PUSH); upButton.setBounds(140, 220, 120, 30); upButton.setText("Up 10px"); upButton.addListener(SWT.Selection, event -> sc.setOrigin(0, sc.getOrigin().y - 10)); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); }
From source file:org.eclipse.swt.snippets.Snippet322.java
public static void main(String[] args) { final Display display = new Display(); Shell shell = new Shell(display); shell.setText("Snippet 322"); shell.setBounds(10, 10, 300, 300);// ww w . j a va 2s. com final ScrolledComposite sc = new ScrolledComposite(shell, SWT.VERTICAL); sc.setBounds(10, 10, 280, 200); final int clientWidth = sc.getClientArea().width; final Tree tree = new Tree(sc, SWT.NONE); for (int i = 0; i < 99; i++) { TreeItem item = new TreeItem(tree, SWT.NONE); item.setText("item " + i); new TreeItem(item, SWT.NONE).setText("child"); } sc.setContent(tree); int prefHeight = tree.computeSize(SWT.DEFAULT, SWT.DEFAULT).y; tree.setSize(clientWidth, prefHeight); /* * The following listener ensures that the Tree is always large * enough to not need to show its own vertical scrollbar. */ tree.addTreeListener(new TreeListener() { @Override public void treeExpanded(TreeEvent e) { int prefHeight = tree.computeSize(SWT.DEFAULT, SWT.DEFAULT).y; tree.setSize(clientWidth, prefHeight); } @Override public void treeCollapsed(TreeEvent e) { int prefHeight = tree.computeSize(SWT.DEFAULT, SWT.DEFAULT).y; tree.setSize(clientWidth, prefHeight); } }); /* * The following listener ensures that a newly-selected item * in the Tree is always visible. */ tree.addSelectionListener(widgetSelectedAdapter(e -> { TreeItem[] selectedItems = tree.getSelection(); if (selectedItems.length > 0) { Rectangle itemRect = selectedItems[0].getBounds(); Rectangle area = sc.getClientArea(); Point origin = sc.getOrigin(); if (itemRect.x < origin.x || itemRect.y < origin.y || itemRect.x + itemRect.width > origin.x + area.width || itemRect.y + itemRect.height > origin.y + area.height) { sc.setOrigin(itemRect.x, itemRect.y); } } })); /* * The following listener scrolls the Tree one item at a time * in response to MouseWheel events. */ tree.addListener(SWT.MouseWheel, event -> { Point origin = sc.getOrigin(); if (event.count < 0) { origin.y = Math.min(origin.y + tree.getItemHeight(), tree.getSize().y); } else { origin.y = Math.max(origin.y - tree.getItemHeight(), 0); } sc.setOrigin(origin); }); Button disableButton = new Button(shell, SWT.PUSH); disableButton.setBounds(10, 220, 120, 30); disableButton.setText("Disable"); disableButton.addListener(SWT.Selection, event -> tree.setEnabled(false)); Button enableButton = new Button(shell, SWT.PUSH); enableButton.setBounds(140, 220, 120, 30); enableButton.setText("Enable"); enableButton.addListener(SWT.Selection, event -> tree.setEnabled(true)); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); }