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iconGrid: Dynamically adjust spacing based on columnLimit

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Adjust the spacing based on the available width when a columnLimit
is set to evenly place the icons.

https://bugzilla.gnome.org/show_bug.cgi?id=694215
This commit is contained in:
Adel Gadllah 2013-02-20 00:38:11 +01:00
parent b75fc2bde3
commit b922035d4f
2 changed files with 18 additions and 6 deletions
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3
js/ui/appDisplay.js
View File

@ -63,6 +63,9 @@ const AlphabeticalView = new Lang.Class({
this._grid = new IconGrid.IconGrid({ xAlign: St.Align.MIDDLE,
columnLimit: MAX_COLUMNS });
// Standard hack for ClutterBinLayout
this._grid.actor.x_expand = true;
this._items = {};
this._allItems = [];
},

21
js/ui/iconGrid.js
View File

@ -241,7 +241,7 @@ const IconGrid = new Lang.Class({
let availWidth = box.x2 - box.x1;
let availHeight = box.y2 - box.y1;
let [nColumns, usedWidth] = this._computeLayout(availWidth);
let [nColumns, usedWidth, spacing] = this._computeLayout(availWidth);
let leftPadding;
switch(this._xAlign) {
@ -294,10 +294,10 @@ const IconGrid = new Lang.Class({
}
if (columnIndex == 0) {
y += this._vItemSize + this._spacing;
y += this._vItemSize + spacing;
x = box.x1 + leftPadding;
} else {
x += this._hItemSize + this._spacing;
x += this._hItemSize + spacing;
}
}
},
@ -313,16 +313,25 @@ const IconGrid = new Lang.Class({
_computeLayout: function (forWidth) {
let nColumns = 0;
let usedWidth = 0;
let spacing = this._spacing;
if (this._colLimit) {
let itemWidth = this._hItemSize * this._colLimit;
let emptyArea = forWidth - itemWidth;
spacing = Math.max(this._spacing, emptyArea / (2 * this._colLimit));
spacing = Math.round(spacing);
}
while ((this._colLimit == null || nColumns < this._colLimit) &&
(usedWidth + this._hItemSize <= forWidth)) {
usedWidth += this._hItemSize + this._spacing;
usedWidth += this._hItemSize + spacing;
nColumns += 1;
}
if (nColumns > 0)
usedWidth -= this._spacing;
usedWidth -= spacing;
return [nColumns, usedWidth];
return [nColumns, usedWidth, spacing];
},
_onStyleChanged: function() {