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Rework tooltip size calculations to get rid of delayed update.

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This commit is contained in:
Thomas Geymayer 2013-03-11 19:25:30 +01:00
parent 5b84e09572
commit 0980f6302a
1 changed files with 34 additions and 33 deletions
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67
Nasal/canvas/tooltip.nas
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@ -13,7 +13,8 @@ var Tooltip = {
_height: 0,
_tipId: nil,
_slice: 17,
_measureText: nil
_measureText: nil,
_measureBB: nil
};
m.setInt("size[0]", size[0]);
m.setInt("size[1]", size[1]);
@ -84,7 +85,6 @@ var Tooltip = {
{
me._label = msg;
me._updateText();
me._updateBounds();
},
setProperty: func(prop)
@ -94,21 +94,18 @@ var Tooltip = {
me._property = prop;
if (me._property != nil)
me._listener = setlistener(me._property, func { me._propertyChanged(); });
me._listener = setlistener(me._property, func { me._updateText(); });
me._updateText();
},
# specify a string used to compute the width of the tooltip
setWidthText: func(txt)
{
me._measureText = txt;
me._updateBounds();
},
_propertyChanged: func
{
me._updateText();
me._measureBB = me._text.setText(txt)
.update()
.getBoundingBox();
me._updateBounds();
},
_updateText: func
@ -120,28 +117,32 @@ var Tooltip = {
}
me._text.setText(msg);
me._updateBounds();
},
_updateBounds: func
{
var width = me.get("size[0]");
me._text.setMaxWidth(width);
if (me._measureText == nil)
me._updateText();
else
me._text.setText(me._measureText);
me._text.update(); # compute the bounds
var bounds = me._text.getBoundingBox();
me._updateText(); # restore real text after measurement
if ((bounds[2] == me._width) and (bounds[3] == me._height))
return;
var max_width = me.get("size[0]") - 2 * me._slice;
me._text.setMaxWidth(max_width);
me._width = bounds[2] + 2 * me._slice;
me._height = bounds[3] + 2 * me._slice;
me._frame.setSize(me._width, me._height);
# compute the bounds
var text_bb = me._text.update().getBoundingBox();
var width = text_bb[2];
var height = text_bb[3];
if( me._measureBB != nil )
{
width = math.max(width, me._measureBB[2]);
height = math.max(height, me._measureBB[3]);
}
if( width > max_width )
width = max_width;
me._width = width + 2 * me._slice;
me._height = height + 2 * me._slice;
me._frame.setSize(me._width, me._height)
.update();
},
_remapValue: func(val)
@ -177,7 +178,7 @@ var Tooltip = {
{
return me['_canvas'];
},
setPosition: func(x, y)
{
me.setInt("x", x + 10);
@ -239,7 +240,7 @@ var setTooltip = func(node)
} else {
tooltip.setWidthText(nil);
}
var nodePath = cmdarg().getNode('property');
if (nodePath != nil) {
var n = props.globals.getNode(nodePath.getValue());
@ -272,13 +273,13 @@ var showTooltip = func(node)
var updateHover = func(node)
{
tooltip.setTooltipId(nil);
# if not shown, nothing to do here
if (!tooltip.isVisible()) return;
# reset cursor to standard
tooltip.fadeOut();
}
addcommand("update-hover", updateHover);