Files
Sudoku/src/gui/CellGUI.java
T

328 lines
9.0 KiB
Java

package gui;
// GUI imports
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.border.LineBorder;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridLayout;
// Processing & backend imports
import gui.backend.Cell;
import gui.backend.Settings;
import gui.backend.Theme;
/**
* GUI representation of a single cell in the Sudoku grid.
*/
class CellGUI extends JPanel {
// GUI fields
private GridLayout noteLayout = new GridLayout(3, 3);
private GridLayout valueLayout = new GridLayout(0, 1);
private JPanel internalPanel = new JPanel(valueLayout);
private JLabel valueLabel;
private Label[] notesLabels = new Label[9];
// GUI data fields read from a Settings object.
private Dimension size;
private Theme theme;
private Font font;
// Data fields
Cell cell;
private boolean noteMode; // true to display notes, or display value
private boolean selected = false; // true if the cell is selected
private boolean incorrect = false; // true if the cell has an invalid value
/**
* Create a new CellGUI object with the given single cell.
*
* Start blank cells in notes mode if startInNotesOrValueMode is true.
*
* @param cell
* @param startInNotesOrValueMode
*/
public CellGUI(Cell cell, Settings s) {
super();
this.cell = cell;
// Set the initial state of the cell based off the settings.
noteMode = s.getCellGUIStartMode();
theme = s.getTheme();
font = s.getFont();
selected = false;
size = s.getCellDimensions();
// Set the layout and size of the cell.
setFocusable(true);
setLayout(valueLayout);
valueLabel = new Label("", theme, font);
setSize(size);
internalPanel.setSize(size);
defaultStyle();
// Populate the cell with the appropriate value or notes.
if(cell.getValue() == 0) {
internalPanel.setLayout(noteLayout);
generateNotes(s.getAutoFillNotes());
} else {
internalPanel.setLayout(valueLayout);
valueLabel.setText(Integer.toString(cell.getValue()));
internalPanel.add(valueLabel);
}
add(internalPanel);
}
/**
* Get the value of the underlying Cell object.
*
* @return int
*/
public int getValue() {
return cell.getValue();
}
/**
* Set the value of the underlying Cell object.
*
* @param value
*/
public void setValue(int value) {
if(!selected) return;
cell.setValue(value);
// Update the GUI with the actual Cell value (unchanged if invalid)
valueLabel.setText(Integer.toString(cell.getValue()));
refresh();
}
/**
* Set the value of the underlying Cell object.
*
* This implementation allows for incorrect values to be highlighted.
*
* @param value
*/
public void setValue(int value, int expected) {
if(!selected) return;
cell.setValue(value);
valueLabel.setText(Integer.toString(cell.getValue()));
if(value != expected) {
incorrect = true;
errorStyle();
} else refresh();
}
/**
* Remove the value of the underlying Cell object.
*/
public void removeValue() {
if(!selected) return;
cell.setValue(0);
if(!cell.isInitValue())
valueLabel.setText("");
incorrect = false;
highlightedStyle();
}
/**
* Add a possible value to the cell.
*
* @param value
*/
public void addPossibleValue(int value) {
if(!selected) return;
cell.addPossibleValue(value);
internalPanel.removeAll();
internalPanel.setLayout(noteLayout);
noteMode = true;
generateNotes(true);
highlightedStyle();
}
/**
* Remove a possible value from the cell.
*
* @return
*/
public void removePossibleValue(int value) {
cell.removePossibleValue(value);
}
/**
* Get the status of the cell in notes mode.
*
* @return
*/
public boolean isInNotesMode() {
return noteMode;
}
/**
* Toggle the mode of the cell between value and note, including the
* layout of the cell.
*
* If the current mode is value, switch to note mode, and vice versa.
*/
public void setNoteMode() {
if(cell.isInitValue()) return;
internalPanel.removeAll();
if(noteMode) {
internalPanel.setLayout(valueLayout);
internalPanel.add(valueLabel);
} else {
internalPanel.setLayout(noteLayout);
noteMode = true;
generateNotes(true);
}
refresh();
noteMode = !noteMode;
}
/**
* Select the cell, and style it for error, highlight, or default.
*/
public void select() {
selected = !selected;
if(incorrect) {
errorStyle();
return;
}
if(!selected)
defaultStyle();
else highlightedStyle();
}
/**
* Style the CellGUI with the primary colors from the Theme.
*
* @see Theme.java
*/
private void defaultStyle() {
setBackground(theme.getPrimaryBackground());
setForeground(theme.getPrimaryText());
internalPanel.setBackground(theme.getPrimaryBackground());
internalPanel.setForeground(theme.getPrimaryText());
valueLabel.setForeground(theme.getPrimaryText());
setBorder(new LineBorder(theme.getPrimaryBorder(), 2));
for(int i = 0; i < 9; i++) {
if(notesLabels[i] != null) {
notesLabels[i].setBackground(theme.getPrimaryBackground());
notesLabels[i].setForeground(theme.getPrimaryText());
}
}
refresh();
}
/**
* Style the CellGUI with the secondary colors from the Theme.
*
* @see Theme.java
*/
private void highlightedStyle() {
setBackground(theme.getSecondaryBackground());
setForeground(theme.getSecondaryText());
internalPanel.setBackground(theme.getSecondaryBackground());
internalPanel.setForeground(theme.getSecondaryText());
valueLabel.setForeground(theme.getSecondaryText());
setBorder(new LineBorder(theme.getSecondaryBorder(), 2));
for(int i = 0; i < 9; i++) {
if(notesLabels[i] != null) {
notesLabels[i].setBackground(theme.getSecondaryBackground());
notesLabels[i].setForeground(theme.getSecondaryText());
}
}
refresh();
}
/**
* Style the CellGUI with the error colors from the Theme.
*
* @see Theme.java
*/
private void errorStyle() {
setBackground(theme.getErrorBackground());
setForeground(theme.getErrorText());
internalPanel.setBackground(theme.getErrorBackground());
internalPanel.setForeground(theme.getErrorText());
valueLabel.setForeground(theme.getErrorText());
setBorder(new LineBorder(theme.getErrorBorder(), 2));
for(int i = 0; i < 9; i++) {
if(notesLabels[i] != null) {
notesLabels[i].setBackground(theme.getErrorBackground());
notesLabels[i].setForeground(theme.getErrorText());
}
}
refresh();
}
/**
* Helper method to repaint and revalidate the internal panel and CellGUI.
*/
private void refresh() {
internalPanel.repaint();
internalPanel.revalidate();
repaint();
revalidate();
}
/**
* Create the GUI components for the cell's notes.
*
* If autoFill is true, then the CellGUI will automatically switch to
* noteMode.
*
* @param autoFill
*/
private void generateNotes(boolean autoFill) {
int[] possibleValues = cell.getPossibleValues();
// Prepare the internalPanel for noteMode.
if(autoFill) {
internalPanel.removeAll();
noteMode = true;
}
// Handle cases where there are no possible values stored.
if(possibleValues.length == 0) {
for(int i = 0; i < 9; i++) {
notesLabels[i] = new Label("", theme, font);
if(autoFill) internalPanel.add(notesLabels[i]);
}
return;
}
int index = 0;
// Add the noted possible values to the cell.
for(int i = 1; i <= 9 && index < possibleValues.length; i++) {
// Add the possible value if it exists.
if(possibleValues[index] == i) {
notesLabels[i - 1] = new Label(Integer.toString(i), theme, font);
index++;
// Otherwise, add a blank value.
} else
notesLabels[i - 1] = new Label("", theme, font);
if(autoFill) internalPanel.add(notesLabels[i - 1]);
}
}
}