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package com.github.lgooddatepicker.tableeditors;
import com.github.lgooddatepicker.components.TimePicker;
import com.github.lgooddatepicker.components.TimePickerSettings;
import com.github.lgooddatepicker.zinternaltools.InternalUtilities;
import java.awt.Component;
import java.awt.event.MouseEvent;
import java.time.LocalTime;
import java.util.EventObject;
import javax.swing.AbstractCellEditor;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.border.Border;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
/**
* TimeTableEditor, This class is used to add a TimePicker to cells (or entire columns) of a Swing
* JTable or a SwingX JXTable component. This class can be used as a table cell "Editor", or as a
* "Renderer", or as both editor and renderer. Separate class instances should be used for the
* editor and the renderer.
*
*
* // Usage example:
* // Create a table.
* JTable table = new JTable();
* //Set up a renderer and editor for the LocalTime type.
* table.setDefaultRenderer(LocalTime.class, new TimeTableEditor());
* table.setDefaultEditor(LocalTime.class, new TimeTableEditor());
*
*
* The TimePicker and TimePickerSettings: The time picker and picker settings can be accessed with
* the supplied getter functions. Note that most of the settings for the time picker are left at
* their default values, but a few (mostly cosmetic) settings are changed in the TimeTableEditor
* constructor. See the TimeTableEditor constructor implementation to learn which default settings
* were changed.
*
* Auto adjust row height: By default, this class will automatically adjust the minimum height of
* all table rows. This occurs during the first time that any cell with an editor or render is
* displayed. The row height is only adjusted if the current table row height value is below the
* minimum value that is needed to display the time picker component. This auto adjust behavior can
* be turned off from the TimeTableEditor constructor.
*
*/
public class TimeTableEditor extends AbstractCellEditor
implements TableCellEditor, TableCellRenderer {
/**
* autoAdjustMinimumTableRowHeight, This indicates whether the minimum table row height (for all
* rows) should be modified when an editor or render is displayed. The row height is only
* adjusted if it is below the minimum value needed to display the time picker component.
*/
private boolean autoAdjustMinimumTableRowHeight = true;
/**
* clickCountToEdit, An integer specifying the number of clicks needed to start editing. Even if
* clickCountToEdit is defined as zero, it will not initiate until a click occurs.
*/
public int clickCountToEdit = 1;
/**
* matchTableBackgroundColor, This indicates whether this table editor should set the picker
* text area background color to match the background color of the table. The default value is
* true.
*/
private boolean matchTableBackgroundColor = true;
/**
* matchTableSelectionBackgroundColor, This indicates whether this table editor should set the
* picker text area background color to match the background color of the table selection (when
* selected). The default value is true.
*/
private boolean matchTableSelectionBackgroundColor = true;
/**
* borderFocusedCell, This holds the border that is used when a cell has focus.
*/
private Border borderFocusedCell;
/**
* borderUnfocusedCell, This holds the border that is used when a cell does not have focus.
*/
private Border borderUnfocusedCell;
/**
* timepicker, This holds the time picker instance.
*/
private TimePicker timePicker;
/**
* minimumRowHeight, This holds the minimum row height needed to display the time picker.
*/
private int minimumRowHeightInPixels;
/**
* Constructor, default.
*/
public TimeTableEditor() {
this(true, true, true);
}
/**
* Constructor, with options.
*
* @param autoAdjustMinimumTableRowHeight Set this to true to have this class automatically
* adjust the the minimum row height of all rows in the table, the first time that a
* TimeTableEditor is displayed. Set this to false to turn off any row height adjustments. The
* default value is true.
*/
public TimeTableEditor(boolean autoAdjustMinimumTableRowHeight,
boolean matchTableBackgroundColor, boolean matchTableSelectionBackgroundColor) {
// Save the constructor parameters.
this.autoAdjustMinimumTableRowHeight = autoAdjustMinimumTableRowHeight;
this.matchTableBackgroundColor = matchTableBackgroundColor;
this.matchTableSelectionBackgroundColor = matchTableSelectionBackgroundColor;
// Create the borders that should be used for focused and unfocused cells.
JLabel exampleDefaultRenderer = (JLabel) new DefaultTableCellRenderer().
getTableCellRendererComponent(new JTable(), "", true, true, 0, 0);
borderFocusedCell = exampleDefaultRenderer.getBorder();
borderUnfocusedCell = new EmptyBorder(1, 1, 1, 1);
// Create and set up the time picker.
timePicker = new TimePicker();
timePicker.setEnableArrowKeys(false);
timePicker.setBorder(borderUnfocusedCell);
timePicker.getComponentTimeTextField().setBorder(null);
// Adjust any needed time picker settings.
TimePickerSettings settings = timePicker.getSettings();
settings.setGapBeforeButtonPixels(0);
settings.setSizeTextFieldMinimumWidthDefaultOverride(false);
settings.setSizeTextFieldMinimumWidth(20);
// Calculate and store the minimum row height needed to display the time picker.
minimumRowHeightInPixels = (timePicker.getPreferredSize().height + 1);
}
/**
* getCellEditorValue, This returns the value contained in the editor. This is required by the
* CellEditor interface.
*/
@Override
public Object getCellEditorValue() {
return timePicker.getTime();
}
/**
* getTimePicker, Returns the TimePicker which is used by this class.
*/
public TimePicker getTimePicker() {
return timePicker;
}
/**
* getTimePickerSettings, Returns the TimePickerSettings for the TimePicker being used by this
* class. These settings can be adjusted as desired by the programmer.
*/
public TimePickerSettings getTimePickerSettings() {
return timePicker.getSettings();
}
/**
* getTableCellEditorComponent, this returns the editor that is used for editing the cell. This
* is required by the TableCellEditor interface.
*
* For additional details, see the Javadocs for the function:
* TableCellEditor.getTableCellEditorComponent().
*/
@Override
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row, int column) {
// Save the supplied value to the time picker.
setCellEditorValue(value);
// If needed, adjust the minimum row height for the table.
zAdjustTableRowHeightIfNeeded(table);
// This fixes a bug where the time text could "move around" during a table resize event.
timePicker.getComponentTimeTextField().setScrollOffset(0);
// Return the time picker component.
return timePicker;
}
/**
* getTableCellRendererComponent, Returns the renderer that is used for drawing the cell. This
* is required by the TableCellRenderer interface.
*
* For additional details, see the Javadocs for the function:
* TableCellRenderer.getTableCellRendererComponent().
*/
@Override
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
// Save the supplied value to the time picker.
setCellEditorValue(value);
// Draw the appropriate background colors to indicate a selected or unselected state.
if (isSelected) {
if (matchTableSelectionBackgroundColor) {
timePicker.getComponentTimeTextField().setBackground(table.getSelectionBackground());
timePicker.setBackground(table.getSelectionBackground());
} else {
timePicker.zDrawTextFieldIndicators();
}
}
if (!isSelected) {
if (matchTableBackgroundColor) {
timePicker.getComponentTimeTextField().setBackground(table.getBackground());
timePicker.setBackground(table.getBackground());
} else {
timePicker.zDrawTextFieldIndicators();
}
}
// Draw the appropriate borders to indicate a focused or unfocused state.
if (hasFocus) {
timePicker.setBorder(borderFocusedCell);
} else {
timePicker.setBorder(borderUnfocusedCell);
}
// If needed, adjust the minimum row height for the table.
zAdjustTableRowHeightIfNeeded(table);
// This fixes a bug where the time text could "move around" during a table resize event.
timePicker.getComponentTimeTextField().setScrollOffset(0);
// Return the time picker component.
return timePicker;
}
/**
* isCellEditable, Returns true if anEvent is not a MouseEvent. Otherwise, it returns true if
* the necessary number of clicks have occurred, and returns false otherwise.
*/
@Override
public boolean isCellEditable(EventObject anEvent) {
if (anEvent instanceof MouseEvent) {
return ((MouseEvent) anEvent).getClickCount() >= clickCountToEdit;
}
return true;
}
/**
* setCellEditorValue, This sets the picker to an appropriate value for the supplied object. If
* the value is null, then picker will be cleared. If the value is a LocalTime instance, then
* the picker will be set to that value. All other types (including strings) will be read or
* converted to a string with a maximum length of the first 100 characters. The picker text will
* be set with the resulting string.
*/
public void setCellEditorValue(Object value) {
timePicker.clear();
if (value == null) {
return;
}
if (value instanceof LocalTime) {
LocalTime nativeValue = (LocalTime) value;
timePicker.setTime(nativeValue);
} else {
String text = value.toString();
String shorterText = InternalUtilities.safeSubstring(text, 0, 100);
timePicker.setText(shorterText);
}
}
/**
* zAdjustTableRowHeightIfNeeded, If needed, this will adjust the row height for all rows in the
* supplied table to fit the minimum row height that is needed to display the time picker
* component.
*
* If autoAdjustMinimumTableRowHeight is false, this will do nothing. If the row height of the
* table is already greater than or equal to "minimumRowHeightInPixels", then this will do
* nothing.
*/
private void zAdjustTableRowHeightIfNeeded(JTable table) {
if (!autoAdjustMinimumTableRowHeight) {
return;
}
if ((table.getRowHeight() < minimumRowHeightInPixels)) {
table.setRowHeight(minimumRowHeightInPixels);
}
}
}
