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Fix minimum height request, handle 0 allocation better

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First, fix a problem where though we intended to request a minimum
height of 0 for the docs content, we were actually requesting
spacing for all items.

On low resolution screens, we were still attempting to allocate
an item even when we were given 0 height.

https://bugzilla.gnome.org/show_bug.cgi?id=596984
This commit is contained in:
Colin Walters 2009-10-01 09:18:05 -04:00
parent 8fd00ac6cc
commit 17c8173640
1 changed files with 12 additions and 6 deletions
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18
js/ui/docDisplay.js
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@ -354,16 +354,14 @@ DashDocDisplay.prototype = {
// Two columns, where we go vertically down first. So just take
// the height of half of the children as our preferred height.
let firstColumnChildren = children.length / 2;
let firstColumnChildren = Math.ceil(children.length / 2);
alloc.min_size = 0;
for (let i = 0; i < firstColumnChildren; i++) {
let child = children[i];
let [minSize, naturalSize] = child.get_preferred_height(forWidth);
alloc.natural_size += naturalSize;
if (i > 0 && i < children.length - 1) {
alloc.min_size += DEFAULT_SPACING;
alloc.natural_size += DEFAULT_SPACING;
}
}
@ -384,14 +382,16 @@ DashDocDisplay.prototype = {
// Loop over the children, going vertically down first. When we run
// out of vertical space (our y variable is bigger than box.y2), switch
// to the second column.
for (; i < children.length; i++) {
while (i < children.length) {
let child = children[i];
let [minSize, naturalSize] = child.get_preferred_height(-1);
if (y + naturalSize > box.y2) {
// Is this the second column? Ok, break.
if (columnIndex == 1) {
// Is this the second column, or we're in
// the first column and can't even fit one
// item? In that case, break.
if (columnIndex == 1 || i == 0) {
break;
}
// Set x to the halfway point.
@ -399,6 +399,10 @@ DashDocDisplay.prototype = {
x = x + itemWidth + DEFAULT_SPACING;
// And y is back to the top.
y = box.y1;
// Retry this same item, now that we're in the second column.
// By looping back to the top here, we re-test the size
// again for the second column.
continue;
}
let childBox = new Clutter.ActorBox();
@ -411,6 +415,8 @@ DashDocDisplay.prototype = {
child.show();
child.allocate(childBox, flags);
i++;
}
// Everything else didn't fit, just hide it.