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MultiLineCellRenderer.java
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MultiLineCellRenderer.java
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package net.seesharpsoft.intellij.plugins.csv.editor.table.swing;
import com.intellij.openapi.editor.colors.EditorColorsManager;
import com.intellij.openapi.editor.colors.EditorFontType;
import com.intellij.openapi.editor.impl.FontFallbackIterator;
import com.intellij.openapi.editor.markup.TextAttributes;
import com.intellij.openapi.util.UserDataHolder;
import com.intellij.ui.components.JBScrollPane;
import com.intellij.util.ui.UIUtil;
import net.seesharpsoft.intellij.plugins.csv.editor.CsvEditorSettingsExternalizable;
import net.seesharpsoft.intellij.plugins.csv.settings.CsvColorSettings;
import org.jetbrains.annotations.NotNull;
import javax.swing.*;
import javax.swing.border.EmptyBorder;
import javax.swing.event.CellEditorListener;
import javax.swing.event.ChangeEvent;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
import javax.swing.text.BadLocationException;
import java.awt.*;
import java.awt.event.FocusEvent;
import java.util.EventObject;
import java.util.Iterator;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
public class MultiLineCellRenderer extends JBScrollPane implements TableCellRenderer, TableCellEditor {
private Set<CellEditorListener> cellEditorListenerSet = new CopyOnWriteArraySet<>();
private final UserDataHolder myUserDataHolder;
private JTextArea myTextArea;
public MultiLineCellRenderer(CsvTableEditorKeyListener keyListener, UserDataHolder userDataHolderParam) {
this.myUserDataHolder = userDataHolderParam;
myTextArea = new JTextArea();
myTextArea.setLineWrap(true);
myTextArea.setWrapStyleWord(true);
myTextArea.setOpaque(true);
myTextArea.setRequestFocusEnabled(true);
myTextArea.addKeyListener(keyListener);
this.setOpaque(true);
this.setBorder(null);
this.setViewportView(myTextArea);
}
private TextAttributes getColumnTextAttributes(int column) {
if (CsvEditorSettingsExternalizable.getInstance().isTableColumnHighlightingEnabled()) {
return CsvColorSettings.getTextAttributesOfColumn(column, myUserDataHolder);
}
return null;
}
private Color getColumnForegroundColor(int column, Color fallback) {
TextAttributes textAttributes = getColumnTextAttributes(column);
return textAttributes == null || textAttributes.getForegroundColor() == null ? fallback : textAttributes.getForegroundColor();
}
private Color getColumnBackgroundColor(int column, Color fallback) {
TextAttributes textAttributes = getColumnTextAttributes(column);
return textAttributes == null || textAttributes.getBackgroundColor() == null ? fallback : textAttributes.getBackgroundColor();
}
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
if (isSelected) {
myTextArea.setForeground(table.getSelectionForeground());
myTextArea.setBackground(table.getSelectionBackground());
} else {
myTextArea.setForeground(getColumnForegroundColor(column, table.getForeground()));
myTextArea.setBackground(getColumnBackgroundColor(column, table.getBackground()));
}
if (hasFocus) {
myTextArea.setBorder(UIManager.getBorder("Table.focusCellHighlightBorder"));
if (table.isCellEditable(row, column)) {
myTextArea.setForeground(UIManager.getColor("Table.focusCellForeground"));
myTextArea.setBackground(UIManager.getColor("Table.focusCellBackground"));
}
} else {
myTextArea.setBorder(new EmptyBorder(1, 2, 1, 2));
}
this.setText(value == null ? "" : value.toString());
final int columnWidth = table.getColumnModel().getColumn(column).getWidth();
final int rowHeight = table.getRowHeight(row);
this.setSize(columnWidth, rowHeight);
this.validate();
myTextArea.setSize(columnWidth, rowHeight);
myTextArea.validate();
return this;
}
@Override
public Dimension getPreferredSize() {
try {
final Rectangle rectangle = myTextArea.modelToView(myTextArea.getDocument().getLength());
if (rectangle != null) {
return new Dimension(this.getWidth(),
this.getInsets().top + rectangle.y + rectangle.height + this.getInsets().bottom);
}
} catch (BadLocationException e) {
e.printStackTrace();
}
return super.getPreferredSize();
}
@Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
return getTableCellRendererComponent(table, value, isSelected, true, row, column);
}
@Override
public Object getCellEditorValue() {
return myTextArea.getText();
}
protected void setText(@NotNull String text) {
Font font = determineFont(text);
this.setFont(font);
myTextArea.setFont(font);
myTextArea.setText(text);
}
protected Font determineFont(@NotNull String text) {
Font finalFont = UIUtil.getFontWithFallback(EditorColorsManager.getInstance().getGlobalScheme().getFont(EditorFontType.PLAIN));
if (CsvEditorSettingsExternalizable.getInstance().isAdvancedFontHandling()) {
FontFallbackIterator it = new FontFallbackIterator();
it.setPreferredFont(finalFont.getFamily(), finalFont.getSize());
it.setFontStyle(finalFont.getStyle());
it.start(text, 0, text.length());
for (; !it.atEnd(); it.advance()) {
Font font = it.getFont();
if (!font.getFamily().equals(finalFont.getFamily())) {
finalFont = font;
break;
}
}
}
return finalFont;
}
@Override
public boolean isCellEditable(EventObject anEvent) {
return true;
}
@Override
public boolean shouldSelectCell(EventObject anEvent) {
return true;
}
@Override
public boolean stopCellEditing() {
fireStopCellEditing();
return true;
}
@Override
public void cancelCellEditing() {
fireCancelCellEditing();
}
protected void fireStopCellEditing() {
ChangeEvent changeEvent = new ChangeEvent(this);
synchronized (cellEditorListenerSet) {
Iterator<CellEditorListener> it = cellEditorListenerSet.iterator();
while (it.hasNext()) {
it.next().editingStopped(changeEvent);
}
}
}
protected void fireCancelCellEditing() {
ChangeEvent changeEvent = new ChangeEvent(this);
synchronized (cellEditorListenerSet) {
Iterator<CellEditorListener> it = cellEditorListenerSet.iterator();
while (it.hasNext()) {
it.next().editingCanceled(changeEvent);
}
}
}
@Override
public void addCellEditorListener(CellEditorListener cellEditorListener) {
synchronized (cellEditorListenerSet) {
cellEditorListenerSet.add(cellEditorListener);
}
}
@Override
public void removeCellEditorListener(CellEditorListener cellEditorListener) {
synchronized (cellEditorListenerSet) {
cellEditorListenerSet.remove(cellEditorListener);
}
}
@Override
protected void processFocusEvent(FocusEvent focusEvent) {
super.processFocusEvent(focusEvent);
myTextArea.grabFocus();
}
}