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Handle cases where one or the other direction does not scroll for lack of need.

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git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3335 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
Michael Bayne
2005-02-07 03:53:54 +00:00
parent ff4f9d4a9c
commit 53c3435854
1 changed files with 22 additions and 13 deletions
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src/java/com/threerings/media/VirtualRangeModel.java
+22 -13
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@@ -48,8 +48,8 @@ public class VirtualRangeModel
_panel = panel; _panel = panel;
// listen to our range models and scroll our badself // listen to our range models and scroll our badself
_horizRange.addChangeListener(this); _hrange.addChangeListener(this);
_vertRange.addChangeListener(this); _vrange.addChangeListener(this);
} }
/** /**
@@ -58,12 +58,21 @@ public class VirtualRangeModel
*/ */
public void setScrollableArea (int x, int y, int width, int height) public void setScrollableArea (int x, int y, int width, int height)
{ {
Rectangle vbounds = _panel.getViewBounds(); Rectangle vb = _panel.getViewBounds();
int hmax = x + width, vmax = y + height, value = int hmax = x + width, vmax = y + height, value;
MathUtil.bound(x, _horizRange.getValue(), hmax - vbounds.width);
_horizRange.setRangeProperties(value, vbounds.width, x, hmax, false); if (width > vb.width) {
value = MathUtil.bound(y, _vertRange.getValue(), vmax - vbounds.height); value = MathUtil.bound(x, _hrange.getValue(), hmax - vb.width);
_vertRange.setRangeProperties(value, vbounds.height, y, vmax, false); _hrange.setRangeProperties(value, vb.width, x, hmax, false);
} else {
_hrange.setRangeProperties(0, vb.width, 0, vb.width, false);
}
if (height > vb.height) {
value = MathUtil.bound(y, _vrange.getValue(), vmax - vb.height);
_vrange.setRangeProperties(value, vb.height, y, vmax, false);
} else {
_vrange.setRangeProperties(0, vb.height, 0, vb.height, false);
}
} }
/** /**
@@ -72,7 +81,7 @@ public class VirtualRangeModel
*/ */
public BoundedRangeModel getHorizModel () public BoundedRangeModel getHorizModel ()
{ {
return _horizRange; return _hrange;
} }
/** /**
@@ -81,16 +90,16 @@ public class VirtualRangeModel
*/ */
public BoundedRangeModel getVertModel () public BoundedRangeModel getVertModel ()
{ {
return _vertRange; return _vrange;
} }
// documentation inherited from interface ChangeListener // documentation inherited from interface ChangeListener
public void stateChanged (ChangeEvent e) public void stateChanged (ChangeEvent e)
{ {
_panel.setViewLocation(_horizRange.getValue(), _vertRange.getValue()); _panel.setViewLocation(_hrange.getValue(), _vrange.getValue());
} }
protected VirtualMediaPanel _panel; protected VirtualMediaPanel _panel;
protected BoundedRangeModel _horizRange = new DefaultBoundedRangeModel(); protected BoundedRangeModel _hrange = new DefaultBoundedRangeModel();
protected BoundedRangeModel _vertRange = new DefaultBoundedRangeModel(); protected BoundedRangeModel _vrange = new DefaultBoundedRangeModel();
} }