src/be/nikiroo/jexer/TSizeConstraint.java

   1 package be.nikiroo.jexer;
   2
   3 import java.util.List;
   4
   5 import jexer.TScrollableWidget;
   6 import jexer.TWidget;
   7 import jexer.event.TResizeEvent;
   8 import jexer.event.TResizeEvent.Type;
   9
  10 public class TSizeConstraint {
  11         private TWidget widget;
  12         private Integer x1;
  13         private Integer y1;
  14         private Integer x2;
  15         private Integer y2;
  16
  17         // TODO: include in the window classes I use?
  18
  19         public TSizeConstraint(TWidget widget, Integer x1, Integer y1, Integer x2,
  20                         Integer y2) {
  21                 this.widget = widget;
  22                 this.x1 = x1;
  23                 this.y1 = y1;
  24                 this.x2 = x2;
  25                 this.y2 = y2;
  26         }
  27
  28         public TWidget getWidget() {
  29                 return widget;
  30         }
  31
  32         public Integer getX1() {
  33                 if (x1 != null && x1 < 0)
  34                         return widget.getParent().getWidth() + x1;
  35                 return x1;
  36         }
  37
  38         public Integer getY1() {
  39                 if (y1 != null && y1 < 0)
  40                         return widget.getParent().getHeight() + y1;
  41                 return y1;
  42         }
  43
  44         public Integer getX2() {
  45                 if (x2 != null && x2 <= 0)
  46                         return widget.getParent().getWidth() - 2 + x2;
  47                 return x2;
  48         }
  49
  50         public Integer getY2() {
  51                 if (y2 != null && y2 <= 0)
  52                         return widget.getParent().getHeight() - 2 + y2;
  53                 return y2;
  54         }
  55
  56         // coordinates < 0 = from the other side
  57         //              x2 or y2 = 0 = max size
  58         //              coordinate NULL = do not work on that side at all
  59         static public void setSize(List<TSizeConstraint> sizeConstraints, TWidget child,
  60                         Integer x1, Integer y1, Integer x2, Integer y2) {
  61                 sizeConstraints.add(new TSizeConstraint(child, x1, y1, x2, y2));
  62         }
  63
  64         static public void resize(List<TSizeConstraint> sizeConstraints) {
  65                 for (TSizeConstraint sizeConstraint : sizeConstraints) {
  66                         TWidget widget = sizeConstraint.getWidget();
  67                         Integer x1 = sizeConstraint.getX1();
  68                         Integer y1 = sizeConstraint.getY1();
  69                         Integer x2 = sizeConstraint.getX2();
  70                         Integer y2 = sizeConstraint.getY2();
  71
  72                         if (x1 != null)
  73                                 widget.setX(x1);
  74                         if (y1 != null)
  75                                 widget.setY(y1);
  76
  77                         if (x2 != null)
  78                                 widget.setWidth(x2 - widget.getX());
  79                         if (y2 != null)
  80                                 widget.setHeight(y2 - widget.getY());
  81
  82                         // Resize the text field
  83                         // TODO: why setW/setH/reflow not enough for the scrollbars?
  84                         widget.onResize(new TResizeEvent(Type.WIDGET, widget.getWidth(),
  85                                         widget.getHeight()));
  86
  87                         if (widget instanceof TScrollableWidget) {
  88                                 ((TScrollableWidget) widget).reflowData();
  89                         }
  90                 }
  91         }
  92 }