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* Copyright (C) 2013 Canonical, Ltd.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 3.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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import Ubuntu.Components 0.1
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Essentially a GridView where you can specify the maximum number of columns it can have.
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property int minimumHorizontalSpacing: units.gu(0.5)
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// property int minimumNumberOfColumns: 2 // FIXME: not implemented
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property int maximumNumberOfColumns: 6
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readonly property int columns: gridView.columns
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property alias verticalSpacing: gridView.verticalSpacing
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property int delegateWidth
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property int delegateHeight
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property alias model: gridView.model
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property alias delegate: gridView.delegate
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readonly property int cellWidth: gridView.cellWidth
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readonly property int cellHeight: gridView.cellHeight
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readonly property int totalContentHeight: Math.ceil(gridView.model.count / columns) * cellHeight + verticalSpacing
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property alias interactive: gridView.interactive
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readonly property alias flicking: gridView.flicking
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readonly property alias moving: gridView.moving
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readonly property alias pressDelay: gridView.pressDelay
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objectName: "responsiveGridViewGrid"
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topMargin: verticalSpacing
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clip: parent.height != totalContentHeight
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function pixelToGU(value) {
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return Math.floor(value / units.gu(1));
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function spacingForColumns(columns) {
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// spacing between columns as an integer number of GU, the remainder goes in the margins
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var spacingGU = pixelToGU(allocatableHorizontalSpace / columns);
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return units.gu(spacingGU);
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function columnsForSpacing(spacing) {
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// minimum margin is half of the spacing
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return Math.floor((parent.width - spacing/2) / (delegateWidth + spacing));
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property real allocatableHorizontalSpace: parent.width - columns * delegateWidth
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property int columns: Math.min(columnsForSpacing(minimumHorizontalSpacing), maximumNumberOfColumns)
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property real horizontalSpacing: spacingForColumns(columns)
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property real verticalSpacing: horizontalSpacing
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property int margin: allocatableHorizontalSpace - columns * horizontalSpacing
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cellWidth: delegateWidth + horizontalSpacing
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cellHeight: delegateHeight + verticalSpacing