| 1 | package be.nikiroo.jvcard.tui.panes; |
| 2 | |
| 3 | import be.nikiroo.jvcard.tui.UiColors; |
| 4 | |
| 5 | import com.googlecode.lanterna.gui2.ActionListBox; |
| 6 | import com.googlecode.lanterna.gui2.Direction; |
| 7 | import com.googlecode.lanterna.gui2.LinearLayout; |
| 8 | import com.googlecode.lanterna.gui2.TextGUIGraphics; |
| 9 | import com.googlecode.lanterna.gui2.AbstractListBox.ListItemRenderer; |
| 10 | |
| 11 | abstract public class MainContentList extends MainContent implements Runnable { |
| 12 | private ActionListBox lines; |
| 13 | |
| 14 | public MainContentList(final UiColors.Element normalStyle, |
| 15 | final UiColors.Element selectedStyle) { |
| 16 | super(Direction.VERTICAL); |
| 17 | |
| 18 | lines = new ActionListBox(); |
| 19 | |
| 20 | lines |
| 21 | .setListItemRenderer(new ListItemRenderer<Runnable, ActionListBox>() { |
| 22 | /** |
| 23 | * This is the main drawing method for a single list box |
| 24 | * item, it applies the current theme to setup the colors |
| 25 | * and then calls {@code getLabel(..)} and draws the result |
| 26 | * using the supplied {@code TextGUIGraphics}. The graphics |
| 27 | * object is created just for this item and is restricted so |
| 28 | * that it can only draw on the area this item is occupying. |
| 29 | * The top-left corner (0x0) should be the starting point |
| 30 | * when drawing the item. |
| 31 | * |
| 32 | * @param graphics |
| 33 | * Graphics object to draw with |
| 34 | * @param listBox |
| 35 | * List box we are drawing an item from |
| 36 | * @param index |
| 37 | * Index of the item we are drawing |
| 38 | * @param item |
| 39 | * The item we are drawing |
| 40 | * @param selected |
| 41 | * Will be set to {@code true} if the item is |
| 42 | * currently selected, otherwise {@code false}, |
| 43 | * but please notice what context 'selected' |
| 44 | * refers to here (see {@code setSelectedIndex}) |
| 45 | * @param focused |
| 46 | * Will be set to {@code true} if the list box |
| 47 | * currently has input focus, otherwise {@code |
| 48 | * false} |
| 49 | */ |
| 50 | public void drawItem(TextGUIGraphics graphics, |
| 51 | ActionListBox listBox, int index, Runnable item, |
| 52 | boolean selected, boolean focused) { |
| 53 | |
| 54 | if (selected && focused) { |
| 55 | graphics.setForegroundColor(selectedStyle |
| 56 | .getForegroundColor()); |
| 57 | graphics.setBackgroundColor(selectedStyle |
| 58 | .getBackgroundColor()); |
| 59 | } else { |
| 60 | graphics.setForegroundColor(normalStyle |
| 61 | .getForegroundColor()); |
| 62 | graphics.setBackgroundColor(normalStyle |
| 63 | .getBackgroundColor()); |
| 64 | } |
| 65 | |
| 66 | // original impl: |
| 67 | // String label = getLabel(listBox, index, item); |
| 68 | // label = TerminalTextUtils.fitString(label, |
| 69 | // graphics.getSize().getColumns()); |
| 70 | |
| 71 | // TODO: why +5 ?? padding problem? |
| 72 | String label = MainContentList.this.getLabel(index, |
| 73 | lines.getSize().getColumns() + 5); |
| 74 | graphics.putString(0, 0, label); |
| 75 | } |
| 76 | }); |
| 77 | |
| 78 | addComponent(lines, LinearLayout |
| 79 | .createLayoutData(LinearLayout.Alignment.Fill)); |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * Add an item to this {@link MainContentList}. |
| 84 | * |
| 85 | * @param line |
| 86 | * the item to add |
| 87 | */ |
| 88 | public void addItem(String line) { |
| 89 | lines.addItem(line, this); |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Clear all the items in this {@link MainContentList} |
| 94 | */ |
| 95 | public void clearItems() { |
| 96 | lines.clearItems(); |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * Get the index of the currently selected line. |
| 101 | * |
| 102 | * @return the index |
| 103 | */ |
| 104 | public int getSelectedIndex() { |
| 105 | return lines.getSelectedIndex(); |
| 106 | } |
| 107 | |
| 108 | /** |
| 109 | * Change the index of the currently selected line. |
| 110 | * |
| 111 | * @param index |
| 112 | * the new index |
| 113 | */ |
| 114 | public void setSelectedIndex(int index) { |
| 115 | lines.setSelectedIndex(index); |
| 116 | } |
| 117 | |
| 118 | @Override |
| 119 | public void run() { |
| 120 | // item selected. |
| 121 | // ignore. |
| 122 | } |
| 123 | |
| 124 | @Override |
| 125 | public String move(int x, int y) { |
| 126 | setSelectedIndex(getSelectedIndex() + x); |
| 127 | // TODO: y? |
| 128 | return null; |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * Return the text representation of the selected line. |
| 133 | * |
| 134 | * @param index |
| 135 | * the line index |
| 136 | * @param width |
| 137 | * the max width of the line |
| 138 | * |
| 139 | * @return the text representation |
| 140 | */ |
| 141 | protected String getLabel(int index, int width) { |
| 142 | return "" + lines.getItems().get(index); |
| 143 | } |
| 144 | } |