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boxpointer: add setPosition method

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split out this function from popupMenu
https://bugzilla.gnome.org/show_bug.cgi?id=624900
This commit is contained in:
Maxim Ermilov
2010-10-19 23:10:48 +04:00
parent 4d18d54d9d
commit 3efc7bf7f1
2 changed files with 87 additions and 62 deletions
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86
js/ui/boxpointer.js
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@ -264,6 +264,92 @@ BoxPointer.prototype = {
cr.stroke();
},
setPosition: function(sourceActor, gap, alignment) {
let primary = global.get_primary_monitor();
// We need to show it now to force an allocation,
// so that we can query the correct size.
this.actor.show();
// Position correctly relative to the sourceActor
let [sourceX, sourceY] = sourceActor.get_transformed_position();
let [sourceWidth, sourceHeight] = sourceActor.get_transformed_size();
let [minWidth, minHeight, natWidth, natHeight] = this.actor.get_preferred_size();
let resX, resY;
switch (this._arrowSide) {
case St.Side.TOP:
resY = sourceY + sourceHeight + gap;
break;
case St.Side.BOTTOM:
resY = sourceY - natHeight - gap;
break;
case St.Side.LEFT:
resX = sourceX + sourceWidth + gap;
break;
case St.Side.RIGHT:
resX = sourceX - natWidth - gap;
break;
}
// Now align and position the pointing axis, making sure
// it fits on screen
switch (this._arrowSide) {
case St.Side.TOP:
case St.Side.BOTTOM:
switch (alignment) {
case St.Align.START:
resX = sourceX;
break;
case St.Align.MIDDLE:
resX = sourceX - Math.floor((natWidth - sourceWidth) / 2);
break;
case St.Align.END:
resX = sourceX - (natWidth - sourceWidth);
break;
}
resX = Math.min(resX, primary.x + primary.width - natWidth);
resX = Math.max(resX, primary.x);
this.setArrowOrigin((sourceX - resX) + Math.floor(sourceWidth / 2));
break;
case St.Side.LEFT:
case St.Side.RIGHT:
switch (alignment) {
case St.Align.START:
resY = sourceY;
break;
case St.Align.MIDDLE:
resY = sourceY - Math.floor((natHeight - sourceHeight) / 2);
break;
case St.Align.END:
resY = sourceY - (natHeight - sourceHeight);
break;
}
resY = Math.min(resY, primary.y + primary.height - natHeight);
resY = Math.max(resY, primary.y);
this.setArrowOrigin((sourceY - resY) + Math.floor(sourceHeight / 2));
break;
}
let parent = this.actor.get_parent();
let success, x, y;
while (!success) {
[success, x, y] = parent.transform_stage_point(resX, resY);
parent = parent.get_parent();
}
// Actually set the position
this.actor.x = Math.floor(x);
this.actor.y = Math.floor(y);
},
// @origin: Coordinate specifying middle of the arrow, along
// the Y axis for St.Side.LEFT, St.Side.RIGHT from the top and X axis from
// the left for St.Side.TOP and St.Side.BOTTOM.