| 1 | package be.nikiroo.fanfix.reader.tui; |
| 2 | |
| 3 | import jexer.TApplication; |
| 4 | import jexer.THScroller; |
| 5 | import jexer.TPanel; |
| 6 | import jexer.TScrollableWindow; |
| 7 | import jexer.TVScroller; |
| 8 | import jexer.TWidget; |
| 9 | import jexer.event.TResizeEvent; |
| 10 | |
| 11 | public class TSimpleScrollableWindow extends TScrollableWindow { |
| 12 | protected TPanel mainPane; |
| 13 | private int prevHorizontal = -1; |
| 14 | private int prevVertical = -1; |
| 15 | |
| 16 | public TSimpleScrollableWindow(TApplication application, String title, |
| 17 | int width, int height) { |
| 18 | this(application, title, width, height, 0, 0, 0); |
| 19 | } |
| 20 | |
| 21 | public TSimpleScrollableWindow(TApplication application, String title, |
| 22 | int width, int height, int flags) { |
| 23 | this(application, title, width, height, flags, 0, 0); |
| 24 | } |
| 25 | |
| 26 | // 0 = none (so, no scrollbar) |
| 27 | public TSimpleScrollableWindow(TApplication application, String title, |
| 28 | int width, int height, int flags, int realWidth, int realHeight) { |
| 29 | super(application, title, width, height, flags); |
| 30 | |
| 31 | mainPane = new TPanel(this, 0, 0, 1, 1) { |
| 32 | @Override |
| 33 | public void draw() { |
| 34 | for (TWidget children : mainPane.getChildren()) { |
| 35 | int y = children.getY() + children.getHeight(); |
| 36 | int x = children.getX() + children.getWidth(); |
| 37 | boolean visible = (y > getVerticalValue()) |
| 38 | && (x > getHorizontalValue()); |
| 39 | children.setVisible(visible); |
| 40 | } |
| 41 | super.draw(); |
| 42 | } |
| 43 | }; |
| 44 | |
| 45 | mainPane.setWidth(getWidth()); |
| 46 | mainPane.setHeight(getHeight()); |
| 47 | |
| 48 | setRealWidth(realWidth); |
| 49 | setRealHeight(realHeight); |
| 50 | placeScrollbars(); |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * The main pane on which you can add other widgets for this scrollable |
| 55 | * window. |
| 56 | * |
| 57 | * @return the main pane |
| 58 | */ |
| 59 | public TPanel getMainPane() { |
| 60 | return mainPane; |
| 61 | } |
| 62 | |
| 63 | public void setRealWidth(int realWidth) { |
| 64 | if (realWidth <= 0) { |
| 65 | if (hScroller != null) { |
| 66 | hScroller.remove(); |
| 67 | } |
| 68 | } else { |
| 69 | if (hScroller == null) { |
| 70 | // size/position will be fixed by placeScrollbars() |
| 71 | hScroller = new THScroller(this, 0, 0, 10); |
| 72 | } |
| 73 | hScroller.setRightValue(realWidth); |
| 74 | } |
| 75 | |
| 76 | reflowData(); |
| 77 | } |
| 78 | |
| 79 | public void setRealHeight(int realHeight) { |
| 80 | if (realHeight <= 0) { |
| 81 | if (vScroller != null) { |
| 82 | vScroller.remove(); |
| 83 | } |
| 84 | } else { |
| 85 | if (vScroller == null) { |
| 86 | // size/position will be fixed by placeScrollbars() |
| 87 | vScroller = new TVScroller(this, 0, 0, 10); |
| 88 | } |
| 89 | vScroller.setBottomValue(realHeight); |
| 90 | } |
| 91 | |
| 92 | reflowData(); |
| 93 | } |
| 94 | |
| 95 | @Override |
| 96 | public void onResize(TResizeEvent event) { |
| 97 | super.onResize(event); |
| 98 | mainPane.setWidth(getWidth()); |
| 99 | mainPane.setHeight(getHeight()); |
| 100 | mainPane.onResize(event); |
| 101 | } |
| 102 | |
| 103 | @Override |
| 104 | public void reflowData() { |
| 105 | super.reflowData(); |
| 106 | reflowData(getHorizontalValue(), getVerticalValue()); |
| 107 | } |
| 108 | |
| 109 | protected void reflowData(int totalX, int totalY) { |
| 110 | super.reflowData(); |
| 111 | mainPane.setX(-totalX); |
| 112 | mainPane.setY(-totalY); |
| 113 | } |
| 114 | |
| 115 | @Override |
| 116 | public void draw() { |
| 117 | if (prevHorizontal != getHorizontalValue() |
| 118 | || prevVertical != getVerticalValue()) { |
| 119 | prevHorizontal = getHorizontalValue(); |
| 120 | prevVertical = getVerticalValue(); |
| 121 | reflowData(); |
| 122 | } |
| 123 | |
| 124 | super.draw(); |
| 125 | } |
| 126 | } |