new: TSizeConstraint

diff --git a/src/be/nikiroo/fanfix/reader/tui/TSizeConstraint.java b/src/be/nikiroo/fanfix/reader/tui/TSizeConstraint.java
new file mode 100644 (file)
index 0000000..3baf125
--- /dev/null
+++ b/src/be/nikiroo/fanfix/reader/tui/TSizeConstraint.java
@@ -0,0 +1,90 @@
+package be.nikiroo.fanfix.reader.tui;
+
+import java.util.List;
+
+import jexer.TScrollableWidget;
+import jexer.TWidget;
+import jexer.event.TResizeEvent;
+import jexer.event.TResizeEvent.Type;
+
+public class TSizeConstraint {
+       private TWidget widget;
+       private Integer x1;
+       private Integer y1;
+       private Integer x2;
+       private Integer y2;
+
+       // TODO: include in the window classes I use?
+
+       public TSizeConstraint(TWidget widget, Integer x1, Integer y1, Integer x2,
+                       Integer y2) {
+               this.widget = widget;
+               this.x1 = x1;
+               this.y1 = y1;
+               this.x2 = x2;
+               this.y2 = y2;
+       }
+
+       public TWidget getWidget() {
+               return widget;
+       }
+
+       public Integer getX1() {
+               if (x1 != null && x1 < 0)
+                       return widget.getParent().getWidth() + x1;
+               return x1;
+       }
+
+       public Integer getY1() {
+               if (y1 != null && y1 < 0)
+                       return widget.getParent().getHeight() + y1;
+               return y1;
+       }
+
+       public Integer getX2() {
+               if (x2 != null && x2 <= 0)
+                       return widget.getParent().getWidth() - 2 + x2;
+               return x2;
+       }
+
+       public Integer getY2() {
+               if (y2 != null && y2 <= 0)
+                       return widget.getParent().getHeight() - 2 + y2;
+               return y2;
+       }
+
+       // coordinates < 0 = from the other side, x2 or y2 = 0 = max size
+       static void setSize(List<TSizeConstraint> list, TWidget child, Integer x1,
+                       Integer y1, Integer x2, Integer y2) {
+               list.add(new TSizeConstraint(child, x1, y1, x2, y2));
+       }
+
+       static void resize(List<TSizeConstraint> sizeConstraints) {
+               for (TSizeConstraint sizeConstraint : sizeConstraints) {
+                       TWidget widget = sizeConstraint.getWidget();
+                       Integer x1 = sizeConstraint.getX1();
+                       Integer y1 = sizeConstraint.getY1();
+                       Integer x2 = sizeConstraint.getX2();
+                       Integer y2 = sizeConstraint.getY2();
+
+                       if (x1 != null)
+                               widget.setX(x1);
+                       if (y1 != null)
+                               widget.setY(y1);
+
+                       if (x2 != null)
+                               widget.setWidth(x2 - widget.getX());
+                       if (y2 != null)
+                               widget.setHeight(y2 - widget.getY());
+
+                       // Resize the text field
+                       // TODO: why setW/setH/reflow not enough for the scrollbars?
+                       widget.onResize(new TResizeEvent(Type.WIDGET, widget.getWidth(),
+                                       widget.getHeight()));
+
+                       if (widget instanceof TScrollableWidget) {
+                               ((TScrollableWidget) widget).reflowData();
+                       }
+               }
+       }
+}