/**
* GridLayout.js
*
* Released under LGPL License.
* Copyright (c) 1999-2017 Ephox Corp. All rights reserved
*
* License: http://www.tinymce.com/license
* Contributing: http://www.tinymce.com/contributing
*/
/**
* This layout manager places controls in a grid.
*
* @setting {Number} spacing Spacing between controls.
* @setting {Number} spacingH Horizontal spacing between controls.
* @setting {Number} spacingV Vertical spacing between controls.
* @setting {Number} columns Number of columns to use.
* @setting {String/Array} alignH start|end|center|stretch or array of values for each column.
* @setting {String/Array} alignV start|end|center|stretch or array of values for each column.
* @setting {String} pack start|end
*
* @class tinymce.ui.GridLayout
* @extends tinymce.ui.AbsoluteLayout
*/
define(
'tinymce.ui.GridLayout',
[
"tinymce.ui.AbsoluteLayout"
],
function (AbsoluteLayout) {
"use strict";
return AbsoluteLayout.extend({
/**
* Recalculates the positions of the controls in the specified container.
*
* @method recalc
* @param {tinymce.ui.Container} container Container instance to recalc.
*/
recalc: function (container) {
var settings, rows, cols, items, contLayoutRect, width, height, rect,
ctrlLayoutRect, ctrl, x, y, posX, posY, ctrlSettings, contPaddingBox, align, spacingH, spacingV, alignH, alignV, maxX, maxY,
colWidths = [], rowHeights = [], ctrlMinWidth, ctrlMinHeight, availableWidth, availableHeight, reverseRows, idx;
// Get layout settings
settings = container.settings;
items = container.items().filter(':visible');
contLayoutRect = container.layoutRect();
cols = settings.columns || Math.ceil(Math.sqrt(items.length));
rows = Math.ceil(items.length / cols);
spacingH = settings.spacingH || settings.spacing || 0;
spacingV = settings.spacingV || settings.spacing || 0;
alignH = settings.alignH || settings.align;
alignV = settings.alignV || settings.align;
contPaddingBox = container.paddingBox;
reverseRows = 'reverseRows' in settings ? settings.reverseRows : container.isRtl();
if (alignH && typeof alignH == "string") {
alignH = [alignH];
}
if (alignV && typeof alignV == "string") {
alignV = [alignV];
}
// Zero padd columnWidths
for (x = 0; x < cols; x++) {
colWidths.push(0);
}
// Zero padd rowHeights
for (y = 0; y < rows; y++) {
rowHeights.push(0);
}
// Calculate columnWidths and rowHeights
for (y = 0; y < rows; y++) {
for (x = 0; x < cols; x++) {
ctrl = items[y * cols + x];
// Out of bounds
if (!ctrl) {
break;
}
ctrlLayoutRect = ctrl.layoutRect();
ctrlMinWidth = ctrlLayoutRect.minW;
ctrlMinHeight = ctrlLayoutRect.minH;
colWidths[x] = ctrlMinWidth > colWidths[x] ? ctrlMinWidth : colWidths[x];
rowHeights[y] = ctrlMinHeight > rowHeights[y] ? ctrlMinHeight : rowHeights[y];
}
}
// Calculate maxX
availableWidth = contLayoutRect.innerW - contPaddingBox.left - contPaddingBox.right;
for (maxX = 0, x = 0; x < cols; x++) {
maxX += colWidths[x] + (x > 0 ? spacingH : 0);
availableWidth -= (x > 0 ? spacingH : 0) + colWidths[x];
}
// Calculate maxY
availableHeight = contLayoutRect.innerH - contPaddingBox.top - contPaddingBox.bottom;
for (maxY = 0, y = 0; y < rows; y++) {
maxY += rowHeights[y] + (y > 0 ? spacingV : 0);
availableHeight -= (y > 0 ? spacingV : 0) + rowHeights[y];
}
maxX += contPaddingBox.left + contPaddingBox.right;
maxY += contPaddingBox.top + contPaddingBox.bottom;
// Calculate minW/minH
rect = {};
rect.minW = maxX + (contLayoutRect.w - contLayoutRect.innerW);
rect.minH = maxY + (contLayoutRect.h - contLayoutRect.innerH);
rect.contentW = rect.minW - contLayoutRect.deltaW;
rect.contentH = rect.minH - contLayoutRect.deltaH;
rect.minW = Math.min(rect.minW, contLayoutRect.maxW);
rect.minH = Math.min(rect.minH, contLayoutRect.maxH);
rect.minW = Math.max(rect.minW, contLayoutRect.startMinWidth);
rect.minH = Math.max(rect.minH, contLayoutRect.startMinHeight);
// Resize container container if minSize was changed
if (contLayoutRect.autoResize && (rect.minW != contLayoutRect.minW || rect.minH != contLayoutRect.minH)) {
rect.w = rect.minW;
rect.h = rect.minH;
container.layoutRect(rect);
this.recalc(container);
// Forced recalc for example if items are hidden/shown
if (container._lastRect === null) {
var parentCtrl = container.parent();
if (parentCtrl) {
parentCtrl._lastRect = null;
parentCtrl.recalc();
}
}
return;
}
// Update contentW/contentH so absEnd moves correctly
if (contLayoutRect.autoResize) {
rect = container.layoutRect(rect);
rect.contentW = rect.minW - contLayoutRect.deltaW;
rect.contentH = rect.minH - contLayoutRect.deltaH;
}
var flexV;
if (settings.packV == 'start') {
flexV = 0;
} else {
flexV = availableHeight > 0 ? Math.floor(availableHeight / rows) : 0;
}
// Calculate totalFlex
var totalFlex = 0;
var flexWidths = settings.flexWidths;
if (flexWidths) {
for (x = 0; x < flexWidths.length; x++) {
totalFlex += flexWidths[x];
}
} else {
totalFlex = cols;
}
// Calculate new column widths based on flex values
var ratio = availableWidth / totalFlex;
for (x = 0; x < cols; x++) {
colWidths[x] += flexWidths ? flexWidths[x] * ratio : ratio;
}
// Move/resize controls
posY = contPaddingBox.top;
for (y = 0; y < rows; y++) {
posX = contPaddingBox.left;
height = rowHeights[y] + flexV;
for (x = 0; x < cols; x++) {
if (reverseRows) {
idx = y * cols + cols - 1 - x;
} else {
idx = y * cols + x;
}
ctrl = items[idx];
// No more controls to render then break
if (!ctrl) {
break;
}
// Get control settings and calculate x, y
ctrlSettings = ctrl.settings;
ctrlLayoutRect = ctrl.layoutRect();
width = Math.max(colWidths[x], ctrlLayoutRect.startMinWidth);
ctrlLayoutRect.x = posX;
ctrlLayoutRect.y = posY;
// Align control horizontal
align = ctrlSettings.alignH || (alignH ? (alignH[x] || alignH[0]) : null);
if (align == "center") {
ctrlLayoutRect.x = posX + (width / 2) - (ctrlLayoutRect.w / 2);
} else if (align == "right") {
ctrlLayoutRect.x = posX + width - ctrlLayoutRect.w;
} else if (align == "stretch") {
ctrlLayoutRect.w = width;
}
// Align control vertical
align = ctrlSettings.alignV || (alignV ? (alignV[x] || alignV[0]) : null);
if (align == "center") {
ctrlLayoutRect.y = posY + (height / 2) - (ctrlLayoutRect.h / 2);
} else if (align == "bottom") {
ctrlLayoutRect.y = posY + height - ctrlLayoutRect.h;
} else if (align == "stretch") {
ctrlLayoutRect.h = height;
}
ctrl.layoutRect(ctrlLayoutRect);
posX += width + spacingH;
if (ctrl.recalc) {
ctrl.recalc();
}
}
posY += height + spacingV;
}
}
});
}
);
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