本文整理汇总了Java中javax.swing.JViewport类的典型用法代码示例。如果您正苦于以下问题:Java JViewport类的具体用法?Java JViewport怎么用?Java JViewport使用的例子?那么, 这里精选的类代码示例或许可以为您提供帮助。
JViewport类属于javax.swing包,在下文中一共展示了JViewport类的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: focusGained
import javax.swing.JViewport; //导入依赖的package包/类
@Override
public void focusGained(FocusEvent e) {
if (e.isTemporary()) {
return;
}
Component cmp = e.getComponent();
if(cmp instanceof JComponent) {
JViewport vp = getViewport(container);
if(vp == null) {
return;
}
Rectangle vr = vp.getViewRect();
Point p = SwingUtilities.convertPoint(cmp.getParent(), cmp.getLocation(), container);
final Rectangle r = new Rectangle(p, cmp.getSize());
if(vr.intersects(r)) {
return;
}
container.scrollRectToVisible(r);
}
}
示例2: getExtentBounds
import javax.swing.JViewport; //导入依赖的package包/类
/** Get position of the component extent. The (x, y) are set to (0, 0) if there's
* no viewport or (-x, -y) if there's one.
*/
public Rectangle getExtentBounds(Rectangle r) {
if (r == null) {
r = new Rectangle();
}
if (component != null) {
JViewport port = getParentViewport();
if (port != null) {
Point p = port.getViewPosition();
r.width = port.getWidth();
r.height = port.getHeight();
r.x = p.x;
r.y = p.y;
} else { // no viewport
r.setBounds(component.getVisibleRect());
}
}
return r;
}
示例3: changed
import javax.swing.JViewport; //导入依赖的package包/类
private void changed() {
JViewport viewport = sp.getViewport();
Point viewPosition = viewport.getViewPosition();
if (viewPosition.x > 0) {
try {
Rectangle textRect = editorPane.getUI().modelToView(editorPane, editorPane.getDocument().getLength());
int textLength = textRect.x + textRect.width;
int viewLength = viewport.getExtentSize().width;
//System.out.println("Utilities.createSingleLineEditor(): spLength = "+sp.getSize().width+", viewLength = "+viewLength+", textLength = "+textLength+", viewPosition = "+viewPosition);
if (textLength < (viewPosition.x + viewLength)) {
viewPosition.x = Math.max(textLength - viewLength, 0);
viewport.setViewPosition(viewPosition);
//System.out.println("Utilities.createSingleLineEditor(): setting new view position = "+viewPosition);
}
} catch (BadLocationException blex) {
Exceptions.printStackTrace(blex);
}
}
}
示例4: computeVisibleSpan
import javax.swing.JViewport; //导入依赖的package包/类
private int[] computeVisibleSpan() {
Component parent = pane.getParent();
if (parent instanceof JLayeredPane) {
parent = parent.getParent();
}
if (parent instanceof JViewport) {
JViewport vp = (JViewport) parent;
Point start = vp.getViewPosition();
Dimension size = vp.getExtentSize();
Point end = new Point((int) (start.getX() + size.getWidth()), (int) (start.getY() + size.getHeight()));
int startPosition = pane.viewToModel(start);
int endPosition = pane.viewToModel(end);
if (parentWithListener != vp) {
vp.addChangeListener(WeakListeners.change(this, vp));
parentWithListener = vp;
}
return new int[] {startPosition, endPosition};
}
return new int[] {0, pane.getDocument().getLength()};
}
示例5: getVisibleRowCount
import javax.swing.JViewport; //导入依赖的package包/类
protected int getVisibleRowCount() {
int rowCount = getRowCount();
int rowHeight = getRowHeight();
if ((rowCount == 0) || (rowHeight == 0)) {
return 0;
}
if (getParent() instanceof JViewport) {
JViewport jvp = (JViewport) getParent();
// +1 to return also half-displayed rows (issue 53660)
int result = Math.min(rowCount, (jvp.getExtentSize().height / rowHeight) + 1);
return result;
} else {
return Math.min(rowCount, getHeight() / rowHeight);
}
}
示例6: hideSearchField
import javax.swing.JViewport; //导入依赖的package包/类
private void hideSearchField() {
if (searchField == null) {
return;
}
searchpanel.setVisible(false);
if (getParent() instanceof JViewport && null != viewportListener ) {
JViewport jvp = (JViewport) getParent();
jvp.removeChangeListener( viewportListener );
viewportListener = null;
}
getParent().removeComponentListener(searchField);
if (searchpanel.getParent() != null) {
searchpanel.getParent().remove(searchpanel);
}
paintSelectionRow();
}
示例7: displaySearchField
import javax.swing.JViewport; //导入依赖的package包/类
/**
* Adds the search field to the tree.
*/
private void displaySearchField(char initialChar) {
if( null != searchpanel )
return;
JViewport vp = scrollPane.getViewport();
originalScrollMode = vp.getScrollMode();
vp.setScrollMode(JViewport.SIMPLE_SCROLL_MODE);
searchTextField.setFont(getFont());
searchTextField.setText(String.valueOf(initialChar));
prepareSearchPanel();
scrollPane.add(searchpanel);
invalidate();
revalidate();
repaint();
searchTextField.requestFocus();
}
示例8: updateColumnSelectionMouseListener
import javax.swing.JViewport; //导入依赖的package包/类
/**
* This method update mouse listener on the scrollPane if it is needed.
* It also recomputes the model of searchCombo. Both actions are needed after
* the set of visible columns is changed.
*/
void updateColumnSelectionMouseListener() {
Container p = getParent();
if (p instanceof JViewport) {
Container gp = p.getParent();
if (gp instanceof JScrollPane) {
JScrollPane scrollPane = (JScrollPane)gp;
// Make certain we are the viewPort's view and not, for
// example, the rowHeaderView of the scrollPane -
// an implementor of fixed columns might do this.
JViewport viewport = scrollPane.getViewport();
if (viewport == null || viewport.getView() != this) {
return;
}
scrollPane.removeMouseListener(columnSelectionMouseListener);
if (getColumnModel().getColumnCount() == 0) {
scrollPane.addMouseListener(columnSelectionMouseListener);
}
}
}
if (searchCombo != null) {
searchCombo.setModel(getSearchComboModel());
}
}
示例9: recalculateCellSize
import javax.swing.JViewport; //导入依赖的package包/类
/**
* Calculate the cell size to use given the current viewable region and the
* the number of rows and columns in the grid. We use the largest
* cellSize that will fit in the viewable region, bounded to be at least the
* parameter minSize.
*/
private void recalculateCellSize(int minSize) {
if (numRows == 0 || numCols == 0) {
cellSize = 0;
} else {
JViewport vp = getEnclosingViewport();
Dimension viewableSize = (vp != null) ? vp.getSize() : getSize();
int desiredCellSize = Math.min(
(viewableSize.height - extraHeight()) / numRows,
(viewableSize.width - extraWidth()) / numCols) - 1;
// now we want to approximate this with
// DEFAULT_CELL_SIZE * Math.pow(2, k)
cellSize = DEFAULT_CELL_SIZE;
if (cellSize <= desiredCellSize)
while (2 * cellSize <= desiredCellSize)
cellSize *= 2;
else
while (cellSize / 2 >= Math.max(desiredCellSize, MIN_CELL_SIZE))
cellSize /= 2;
}
revalidate();
}
示例10: validateThird
import javax.swing.JViewport; //导入依赖的package包/类
public void validateThird() {
JViewport viewport = this.pane.getViewport();
JScrollBar scroller = this.pane.getHorizontalScrollBar();
if (!scroller.getComponentOrientation().equals(ComponentOrientation.RIGHT_TO_LEFT)) {
throw new Error("unexpected component orientation");
}
int value = scroller.getValue();
if (value != 0) {
throw new Error("unexpected scroll value");
}
int extent = viewport.getExtentSize().width;
if (extent != scroller.getVisibleAmount()) {
throw new Error("unexpected visible amount");
}
int size = viewport.getViewSize().width;
if (size != scroller.getMaximum()) {
throw new Error("unexpected maximum");
}
int pos = size - extent - value;
if (pos != viewport.getViewPosition().x) {
throw new Error("unexpected position");
}
}
示例11: autoscroll
import javax.swing.JViewport; //导入依赖的package包/类
/** notify the Component to autoscroll */
public void autoscroll(Point cursorLoc) {
JViewport viewport = getViewport();
Point viewPos = viewport.getViewPosition();
int viewHeight = viewport.getExtentSize().height;
if ((cursorLoc.y - viewPos.y) <= realInsets.top) {
// scroll up
viewport.setViewPosition(new Point(viewPos.x, Math.max(viewPos.y - realInsets.top, 0)));
} else if (((viewPos.y + viewHeight) - cursorLoc.y) <= realInsets.bottom) {
// scroll down
viewport.setViewPosition(
new Point(viewPos.x, Math.min(viewPos.y + realInsets.bottom, this.getHeight() - viewHeight))
);
}
}
示例12: showPopup
import javax.swing.JViewport; //导入依赖的package包/类
private void showPopup(Set<AppearancePort> portObjects) {
dragStart = null;
CircuitState circuitState = canvas.getCircuitState();
if (circuitState == null)
return;
ArrayList<Instance> ports = new ArrayList<Instance>(portObjects.size());
for (AppearancePort portObject : portObjects) {
ports.add(portObject.getPin());
}
hideCurrentPopup();
LayoutThumbnail layout = new LayoutThumbnail();
layout.setCircuit(circuitState, ports);
JViewport owner = canvasPane.getViewport();
Point ownerLoc = owner.getLocationOnScreen();
Dimension ownerDim = owner.getSize();
Dimension layoutDim = layout.getPreferredSize();
int x = ownerLoc.x + Math.max(0, ownerDim.width - layoutDim.width - 5);
int y = ownerLoc.y + Math.max(0, ownerDim.height - layoutDim.height - 5);
PopupFactory factory = PopupFactory.getSharedInstance();
Popup popup = factory.getPopup(canvasPane.getViewport(), layout, x, y);
popup.show();
curPopup = popup;
curPopupTime = System.currentTimeMillis();
}
示例13: createComponent
import javax.swing.JViewport; //导入依赖的package包/类
private static JComponent createComponent() {
createStyles();
for (int i = 0; i < data.length; i++) {
Paragraph p = data[i];
addParagraph(p);
}
JTextPane textPane = new JTextPane(doc);
JScrollPane scroller = new JScrollPane();
JViewport port = scroller.getViewport();
port.setScrollMode(JViewport.BACKINGSTORE_SCROLL_MODE);
port.add(textPane);
return scroller;
}
示例14: getColumnLocation
import javax.swing.JViewport; //导入依赖的package包/类
/**
*
*/
public int getColumnLocation(mxCellState edge, mxCellState terminal, int column) {
Component[] c = components.get(terminal.getCell());
int y = 0;
if (c != null) {
for (int i = 0; i < c.length; i++) {
if (c[i] instanceof JTableRenderer) {
JTableRenderer vertex = (JTableRenderer) c[i];
JTable table = vertex.table;
JViewport viewport = (JViewport) table.getParent();
double dy = -viewport.getViewPosition().getY();
y = (int) Math.max(terminal.getY() + 22,
terminal.getY() + Math.min(terminal.getHeight() - 20, 30 + dy + column * 16));
}
}
}
return y;
}
示例15: Limpar_Campos_Tela
import javax.swing.JViewport; //导入依赖的package包/类
public static void Limpar_Campos_Tela(JPanel tela, Boolean bloquear_Componentes){
for (Component componente : tela.getComponents()) {
if (componente instanceof JPanel) {
Limpar_Campos_Tela((JPanel) componente,bloquear_Componentes);
}
if(componente instanceof JScrollPane){
JViewport viewport = ((JScrollPane)componente).getViewport();
JTable table = (JTable)viewport.getView();
DefaultTableModel model = (DefaultTableModel) table.getModel();
model.getDataVector().removeAllElements();
model.fireTableDataChanged();
table.setEnabled(!bloquear_Componentes);
}
if (componente instanceof JTextField) {
((JTextField) componente).setText("");
((JTextField) componente).setEnabled(!bloquear_Componentes);
}
if (componente instanceof JFormattedTextField) {
((JFormattedTextField) componente).setText("");
((JFormattedTextField) componente).setEnabled(!bloquear_Componentes);
}
if(componente instanceof JButton){
((JButton) componente).setEnabled(!bloquear_Componentes);
}
}
}