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| public class ArrayPanel extends JPanel {
private static final long serialVersionUID = 1L;
private static final Insets INSETS_VER = new Insets(10, 0, 10, 0);
private static final Insets INSETS_HOR= new Insets(0, 10, 0, 10);
private static final Insets INSETS= new Insets(1, 1, 0, 0);
private int rowCount;
private int columnCount;
private Color lineColor;
private boolean grid;
public ArrayPanel() {
super(new GridBagLayout());
lineColor=Color.WHITE;
}
public void setLineColor(Color color) {
if ( color==null ) {
color=Color.WHITE;
}
this.lineColor=color;
repaint();
}
@Override
public void setForeground(Color fg) {
super.setForeground(fg);
for(int row=0; row<rowCount; row++) {
JLabel jlabel = (JLabel)getComponent(0, row+1);
jlabel.setForeground(fg);
}
for(int column=0; column<columnCount; column++) {
JLabel jlabel = (JLabel)getComponent(column+1,0);
jlabel.setForeground(fg);
}
}
@Override
public void setFont(Font font) {
super.setFont(font);
for(int row=0; row<rowCount; row++) {
JLabel jlabel = (JLabel)getComponent(0, row+1);
jlabel.setFont(font);
}
for(int column=0; column<columnCount; column++) {
JLabel jlabel = (JLabel)getComponent(column+1,0);
jlabel.setFont(font);
}
}
public void setGridVisible(boolean grid) {
this.grid=grid;
repaint();
}
public boolean isGridVisible() {
return grid;
}
@Override
public void paint(Graphics g) {
super.paint(g);
g.setColor(lineColor);
if ( columnCount>0 ) {
int headerWidth=0;
if (!grid && rowCount>0) {
JLabel jlabel = (JLabel)getComponent(0,1);
headerWidth=jlabel.getWidth();
}
for(int i=0; i<=rowCount; i++) {
Component component = getComponent(1,i);
if( component==null) continue;
if ( grid || i==0 ) {
if ( i==0 ) g.drawLine(0, component.getY(), getWidth(), component.getY());
g.drawLine(0, component.getY()+component.getHeight(), getWidth(), component.getY()+component.getHeight());
}
else {
if ( i==0 ) g.drawLine(0, component.getY(), headerWidth, component.getY());
g.drawLine(0, component.getY()+component.getHeight(), headerWidth, component.getY()+component.getHeight());
}
}
}
if ( rowCount>0 ) {
int headerHeight=0;
if (!grid && columnCount>0) {
JLabel jlabel = (JLabel)getComponent(1,0);
headerHeight=jlabel.getHeight();
}
for(int i=0; i<=columnCount; i++) {
Component component = getComponent(i, 1);
if( component==null) continue;
if ( grid || i==0 ) {
if ( i==0 ) g.drawLine(component.getX(), 0, component.getX(), getHeight());
g.drawLine(component.getX()+component.getWidth(), 0, component.getX()+component.getWidth(), getHeight());
}
else {
if ( i==0 ) g.drawLine(component.getX(), 0, component.getX(), headerHeight);
g.drawLine(component.getX()+component.getWidth(), 0, component.getX()+component.getWidth(), headerHeight);
}
}
}
}
public void addRow(String label) {
if ( label==null ) {
label="";
}
int newRow = ++rowCount;
createRow(label, newRow);
}
protected JLabel createRow(String label, int newRow) {
JLabel jlabel = createJLabel(label);
jlabel.setUI(new VerticalLabelUI(false));
add(jlabel, new GridBagConstraints(0, newRow, 1, 1, 0, 0, GridBagConstraints.CENTER, GridBagConstraints.CENTER, INSETS_VER, 0, 0));
fillRow(newRow);
revalidate();
repaint();
return jlabel;
}
public void addRow(String label, int row) {
if ( row<0 || row>rowCount ) {
throw new IndexOutOfBoundsException();
}
else if ( row==rowCount ) {
addRow(label);
}
else {
if ( label==null ) {
label="";
}
GridBagLayout layout = (GridBagLayout) getLayout();
for(int i=columnCount; i>=0; i--) {
for(int j=rowCount; j>=row; j--) {
Component component = getComponent(i,j);
GridBagConstraints gbc = layout.getConstraints(component);
gbc.gridy++;
layout.setConstraints(component, gbc);
}
}
rowCount++;
createRow(label, row);
}
}
protected JLabel createJLabel(String label) {
JLabel jlabel = new JLabel(label, JLabel.CENTER);
jlabel.setForeground(getForeground());
jlabel.setFont(getFont());
return jlabel;
}
private void fillRow(int newRow) {
for(int i=1; i<=columnCount; i++) {
add( new JPanel(), new GridBagConstraints(i, newRow, 1, 1, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.BOTH, INSETS, 0, 0));
}
}
public void addColumn(String label) {
if ( label==null ) {
label="";
}
int newColumn = ++columnCount;
createColumn(label, newColumn);
}
protected JLabel createColumn(String label, int newColumn) {
JLabel jlabel = createJLabel(label);
add(jlabel, new GridBagConstraints(newColumn, 0, 1, 1, 0, 0, GridBagConstraints.CENTER, GridBagConstraints.CENTER, INSETS_HOR, 0, 0));
fillColumn(newColumn);
revalidate();
repaint();
return jlabel;
}
private void fillColumn(int newColumn) {
for(int i=1; i<=rowCount; i++) {
add( new JPanel(), new GridBagConstraints(newColumn, i, 1, 1, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.BOTH, INSETS, 0, 0));
}
}
public void addColumn(String label, int column) {
if ( column<0 || column>columnCount ) {
throw new IndexOutOfBoundsException();
}
else if ( column==columnCount ) {
addColumn(label);
}
else {
if ( label==null ) {
label="";
}
GridBagLayout layout = (GridBagLayout) getLayout();
for(int i=rowCount; i>=0; i--) {
for(int j=columnCount; j>=column; j--) {
Component component = getComponent(j,i);
GridBagConstraints gbc = layout.getConstraints(component);
gbc.gridx++;
layout.setConstraints(component, gbc);
}
}
columnCount++;
createColumn(label, column);
}
}
public void swapRow(int row1, int row2) {
if ( row1<0 || row1>=rowCount || row2<0 || row2>=rowCount ) throw new IndexOutOfBoundsException();
if ( row1==row2 ) return;
if ( row1<row2 ) {
swapRow(row2, row1);
return;
}
GridBagLayout layout = (GridBagLayout) getLayout();
for(int i=columnCount; i>=0; i--) {
Component component1 = getComponent(i,row1+1);
GridBagConstraints gbc1 = layout.getConstraints(component1);
gbc1.gridy=row2+1;
layout.setConstraints(component1, gbc1);
Component component2 = getComponent(i,row2+1);
GridBagConstraints gbc2 = layout.getConstraints(component2);
gbc2.gridy=row1+1;
layout.setConstraints(component2, gbc2);
}
revalidate();
repaint();
}
public void swapColumn(int column1, int column2) {
if ( column1<0 || column1>=columnCount || column2<0 || column2>=columnCount ) throw new IndexOutOfBoundsException();
if ( column1==column2 ) return;
if ( column1<column2) {
swapColumn(column2, column1);
return;
}
GridBagLayout layout = (GridBagLayout) getLayout();
for(int i=rowCount; i>=0; i--) {
Component component1 = getComponent(column1+1,i);
GridBagConstraints gbc1 = layout.getConstraints(component1);
gbc1.gridx=column2+1;
layout.setConstraints(component1, gbc1);
Component component2 = getComponent(column2+1,i);
GridBagConstraints gbc2 = layout.getConstraints(component2);
gbc2.gridx=column1+1;
layout.setConstraints(component2, gbc2);
}
revalidate();
repaint();
}
public void setRowLabel(String label, int row) {
if ( row<0 || row>=rowCount ) throw new IndexOutOfBoundsException();
if ( label==null ) {
label="";
}
JLabel jlabel = (JLabel)getComponent(0, row+1);
jlabel.setText(label);
revalidate();
repaint();
}
public void setColumnLabel(String label, int column) {
if ( column<0 || column>=columnCount ) throw new IndexOutOfBoundsException();
if ( label==null ) {
label="";
}
JLabel jlabel = (JLabel)getComponent(column+1, 0);
jlabel.setText(label);
revalidate();
repaint();
}
public void removeRow(int row) {
if ( row<0 || row>=rowCount ) throw new IndexOutOfBoundsException();
for(int i=columnCount; i>=0; i--) {
Component component = getComponent(i,row+1);
remove(component);
}
GridBagLayout layout = (GridBagLayout) getLayout();
for(int i=columnCount; i>=0; i--) {
for(int j=row+2; j<=rowCount; j++) {
Component component = getComponent(i,j);
GridBagConstraints gbc = layout.getConstraints(component);
gbc.gridy--;
layout.setConstraints(component, gbc);
}
}
rowCount--;
revalidate();
repaint();
}
public void removeColumn(int column) {
if ( column<0 || column>=columnCount ) throw new IndexOutOfBoundsException();
for(int i=rowCount; i>=0; i--) {
Component component = getComponent(column+1, i);
remove(component);
}
GridBagLayout layout = (GridBagLayout) getLayout();
for(int i=rowCount; i>=0; i--) {
for(int j=column+2; j<=columnCount; j++) {
Component component = getComponent(j,i);
GridBagConstraints gbc = layout.getConstraints(component);
gbc.gridx--;
layout.setConstraints(component, gbc);
}
}
columnCount--;
revalidate();
repaint();
}
public int getRowCount() {
return rowCount;
}
public int getColumnCount() {
return columnCount;
}
public void setPanel(JPanel panel, int row, int column) {
if ( row<0 || row>=rowCount || column<0 || column>=columnCount ) throw new IndexOutOfBoundsException();
removeComponentAt(column+1, row+1);
add(panel, new GridBagConstraints(column+1, row+1, 1, 1, 1, 1, GridBagConstraints.CENTER, GridBagConstraints.BOTH, INSETS, 0, 0));
revalidate();
repaint();
}
private void removeComponentAt(int column, int row) {
Component component = getComponent(row, column);
if ( component!=null ) {
remove(component);
}
}
private Component getComponent(int column, int row) {
for(Component component : getComponents()) {
GridBagConstraints gbc = ((GridBagLayout)getLayout()).getConstraints(component);
if ( gbc.gridx==column && gbc.gridy==row ) {
return component;
}
}
return null;
}
} |
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