comparison: src/main/java/de/uapcore/sudoku/SudokuTextField.java
src/main/java/de/uapcore/sudoku/SudokuTextField.java
- changeset 10
- 369903afbb29
- parent 9
- 576e7a2861ae
- child 12
- 1c62c6009161
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| 9:576e7a2861ae | 10:369903afbb29 |
|---|---|
| 32 import java.awt.event.FocusEvent; | 32 import java.awt.event.FocusEvent; |
| 33 import java.awt.event.KeyAdapter; | 33 import java.awt.event.KeyAdapter; |
| 34 import java.awt.event.KeyEvent; | 34 import java.awt.event.KeyEvent; |
| 35 | 35 |
| 36 /** | 36 /** |
| 37 * | 37 * A custom text field specifically for Sudoku number fields. |
| 38 * @author mike | |
| 39 */ | 38 */ |
| 40 public final class SudokuTextField extends JTextField { | 39 public final class SudokuTextField extends JTextField { |
| 41 | 40 |
| 42 private boolean modified; | 41 private boolean modified; |
| 43 | 42 |
| 103 public void focusLost(FocusEvent e) { | 102 public void focusLost(FocusEvent e) { |
| 104 select(0, 0); | 103 select(0, 0); |
| 105 } | 104 } |
| 106 }); | 105 }); |
| 107 } | 106 } |
| 108 | 107 |
| 108 /** | |
| 109 * Returns the current value in the field or zero if the field is empty. | |
| 110 * | |
| 111 * @return the number from 1 to 9 or zero if empty | |
| 112 */ | |
| 109 public int getValue() { | 113 public int getValue() { |
| 110 if (getText().length() > 0) { | 114 if (getText().isEmpty()) { |
| 115 return 0; | |
| 116 } else { | |
| 111 return Integer.valueOf(getText()); | 117 return Integer.valueOf(getText()); |
| 112 } else { | |
| 113 return 0; | |
| 114 } | 118 } |
| 115 } | 119 } |
| 116 | 120 |
| 121 /** | |
| 122 * Sets the field's value. | |
| 123 * | |
| 124 * @param v the number from 1 to 9 or zero to clear the field | |
| 125 */ | |
| 117 public void setValue(int v) { | 126 public void setValue(int v) { |
| 118 if (v == 0) { | 127 if (v == 0) { |
| 119 setText(""); | 128 setText(""); |
| 120 } else if (v < 10) { | 129 } else if (v < 10) { |
| 121 setText(String.valueOf(v)); | 130 setText(String.valueOf(v)); |
| 122 } else { | 131 } else { |
| 123 throw new IllegalArgumentException( | 132 throw new IllegalArgumentException( |
| 124 "Sudoku numbers must be in range 0-9 (0 means 'not set')"); | 133 "Sudoku numbers must be in range 0-9 (0 means 'not set')"); |
| 125 } | 134 } |
| 126 } | 135 } |
| 127 | 136 |
| 137 /** | |
| 138 * Sets the modified state of this field. | |
| 139 * | |
| 140 * Modified fields are displayed in blue color. | |
| 141 * | |
| 142 * @param modified a flag indicating whether this field is modified | |
| 143 */ | |
| 128 public void setModified(boolean modified) { | 144 public void setModified(boolean modified) { |
| 129 this.modified = modified; | 145 this.modified = modified; |
| 130 setForeground(modified?Color.BLUE:Color.BLACK); | 146 setForeground(modified?Color.BLUE:Color.BLACK); |
| 131 } | 147 } |
| 132 | 148 |
| 149 /** | |
| 150 * Checks whether this field is in modified state. | |
| 151 * | |
| 152 * @return true if this field is modified | |
| 153 */ | |
| 133 public boolean isModified() { | 154 public boolean isModified() { |
| 134 return modified; | 155 return modified; |
| 135 } | 156 } |
| 136 } | 157 } |
