/
draw.js
909 lines (909 loc) · 45.7 KB
/
draw.js
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/*jslint browser: true, unparam: true, todo: true*/
/*globals XMLSerializer: false, define: true, Blob: false, MutationObserver: false, requestAnimationFrame: false, performance: false, btoa: false*/
define([], function () {
'use strict';
return function (self) {
var perfCounters = [],
drawCount = 0,
perfWindowSize = 20;
self.htmlImageCache = {};
function drawOnAllImagesLoaded() {
var loaded = true;
Object.keys(self.htmlImageCache).forEach(function (html) {
if (!self.htmlImageCache[html].complete) {
loaded = false;
}
});
if (loaded) {
self.draw();
}
}
function drawHtml(cell) {
var img,
v = cell.innerHTML || cell.formattedValue,
x = cell.x + self.canvasOffsetLeft,
y = cell.y + self.canvasOffsetTop;
if (self.htmlImageCache[v]) {
img = self.htmlImageCache[v];
if (img.height !== cell.height || img.width !== cell.width) {
// height and width of the cell has changed, invalidate cache
self.htmlImageCache[v] = undefined;
} else {
if (!img.complete) {
return;
}
return self.ctx.drawImage(img, x, y);
}
}
img = new Image(cell.width, cell.height);
self.htmlImageCache[v] = img;
img.onload = function () {
self.ctx.drawImage(img, x, y);
drawOnAllImagesLoaded();
};
img.src = 'data:image/svg+xml;base64,' + btoa(
'<svg xmlns="http://www.w3.org/2000/svg" width="' + cell.width + '" height="' + cell.height + '">\n' +
'<foreignObject class="node" x="0" y="0" width="100%" height="100%">\n' +
'<body xmlns="http://www.w3.org/1999/xhtml" style="margin:0;padding:0;">\n' +
v + '\n' +
'</body>' +
'</foreignObject>\n' +
'</svg>\n'
);
}
function drawOrderByArrow(x, y) {
x += self.canvasOffsetLeft;
y += self.canvasOffsetTop;
self.ctx.fillStyle = self.style.columnHeaderOrderByArrowColor;
self.ctx.strokeStyle = self.style.columnHeaderOrderByArrowBorderColor;
self.ctx.beginPath();
x = x + self.style.columnHeaderOrderByArrowMarginLeft;
y = y + self.style.columnHeaderOrderByArrowMarginTop;
if (self.orderDirection === 'asc') {
self.ctx.moveTo(x, y);
self.ctx.lineTo(x + self.style.columnHeaderOrderByArrowWidth, y);
self.ctx.lineTo(x + (self.style.columnHeaderOrderByArrowWidth * 0.5), y + self.style.columnHeaderOrderByArrowHeight);
self.ctx.moveTo(x, y);
} else {
self.ctx.lineTo(x, y + self.style.columnHeaderOrderByArrowHeight);
self.ctx.lineTo(x + self.style.columnHeaderOrderByArrowWidth, y + self.style.columnHeaderOrderByArrowHeight);
self.ctx.lineTo(x + (self.style.columnHeaderOrderByArrowWidth * 0.5), y);
self.ctx.lineTo(x, y + self.style.columnHeaderOrderByArrowHeight);
}
self.ctx.stroke();
self.ctx.fill();
return self.style.columnHeaderOrderByArrowMarginLeft
+ self.style.columnHeaderOrderByArrowWidth
+ self.style.columnHeaderOrderByArrowMarginRight;
}
function drawTreeArrow(cell, x, y) {
x += self.canvasOffsetLeft;
y += self.canvasOffsetTop;
self.ctx.fillStyle = self.style.treeArrowColor;
self.ctx.strokeStyle = self.style.treeArrowBorderColor;
self.ctx.beginPath();
x = x + self.style.treeArrowMarginLeft;
y = y + self.style.treeArrowMarginTop;
if (self.openChildren[cell.data[self.uniqueId]]) {
self.ctx.moveTo(x, y);
self.ctx.lineTo(x + self.style.treeArrowWidth, y);
self.ctx.lineTo(x + (self.style.treeArrowWidth * 0.5), y + self.style.treeArrowHeight);
self.ctx.moveTo(x, y);
} else {
self.ctx.lineTo(x, y);
self.ctx.lineTo(x + self.style.treeArrowHeight, y + (self.style.treeArrowWidth * 0.5));
self.ctx.lineTo(x, y + self.style.treeArrowWidth);
self.ctx.lineTo(x, y);
}
self.ctx.stroke();
self.ctx.fill();
return self.style.treeArrowMarginLeft
+ self.style.treeArrowWidth
+ self.style.treeArrowMarginRight;
}
function radiusRect(x, y, w, h, radius) {
x += self.canvasOffsetLeft;
y += self.canvasOffsetTop;
var r = x + w, b = y + h;
self.ctx.beginPath();
self.ctx.moveTo(x + radius, y);
self.ctx.lineTo(r - radius, y);
self.ctx.quadraticCurveTo(r, y, r, y + radius);
self.ctx.lineTo(r, y + h - radius);
self.ctx.quadraticCurveTo(r, b, r - radius, b);
self.ctx.lineTo(x + radius, b);
self.ctx.quadraticCurveTo(x, b, x, b - radius);
self.ctx.lineTo(x, y + radius);
self.ctx.quadraticCurveTo(x, y, x + radius, y);
}
function fillRect(x, y, w, h) {
x += self.canvasOffsetLeft;
y += self.canvasOffsetTop;
self.ctx.fillRect(x, y, w, h);
}
function strokeRect(x, y, w, h) {
x += self.canvasOffsetLeft;
y += self.canvasOffsetTop;
self.ctx.strokeRect(x, y, w, h);
}
function fillText(text, x, y) {
x += self.canvasOffsetLeft;
y += self.canvasOffsetTop;
self.ctx.fillText(text, x, y);
}
function addBorderLine(c, pos) {
self.ctx.beginPath();
var p = {
t: function () {
self.ctx.moveTo(c.x + self.canvasOffsetLeft, c.y + self.canvasOffsetTop);
self.ctx.lineTo(c.x + self.canvasOffsetLeft + c.width, c.y + self.canvasOffsetTop);
},
r: function () {
self.ctx.moveTo(c.x + self.canvasOffsetLeft + c.width, c.y + self.canvasOffsetTop);
self.ctx.lineTo(c.x + self.canvasOffsetLeft + c.width, c.y + self.canvasOffsetTop + c.height);
},
b: function () {
self.ctx.moveTo(c.x + self.canvasOffsetLeft, c.y + self.canvasOffsetTop + c.height);
self.ctx.lineTo(c.x + self.canvasOffsetLeft + c.width, c.y + self.canvasOffsetTop + c.height);
},
l: function () {
self.ctx.moveTo(c.x + self.canvasOffsetLeft, c.y + self.canvasOffsetTop);
self.ctx.lineTo(c.x + self.canvasOffsetLeft, c.y + self.canvasOffsetTop + c.height);
}
};
p[pos]();
self.ctx.stroke();
}
function addEllipsis(text, width) {
var c, w = 0;
if (self.ellipsisCache[text] && self.ellipsisCache[text][width]) {
return self.ellipsisCache[text][width];
}
//TODO Add ellipsis back when there is a fast way to do it
w = self.ctx.measureText(text).width;
self.ellipsisCache[text] = self.ellipsisCache[text] || {};
c = {value: text, width: w};
self.ellipsisCache[text][width] = c;
return c;
}
function drawText(cell) {
var paddingLeft = self.style[cell.style + 'PaddingLeft'],
paddingTop = self.style[cell.style + 'PaddingTop'],
paddingRight = self.style[cell.style + 'PaddingRight'],
paddingBottom = self.style[cell.style + 'PaddingBottom'],
vPos = paddingTop + cell.height - (cell.height * 0.5),
hPos = paddingLeft + cell.treeArrowWidth + cell.orderByArrowWidth;
cell.text = addEllipsis(cell.formattedValue, cell.width - paddingRight - paddingLeft);
cell.text.height = cell.fontHeight;
if (cell.horizontalAlignment === 'right') {
hPos = cell.width - cell.text.width - paddingRight;
} else if (cell.horizontalAlignment === 'center') {
hPos = (cell.width / 2) - (cell.text.width / 2);
}
if (cell.verticalAlignment === 'top') {
vPos = paddingTop + cell.text.height;
} else if (cell.verticalAlignment === 'bottom') {
vPos = cell.height - paddingBottom - cell.text.height;
}
cell.text.x = cell.x + hPos;
cell.text.y = cell.y + vPos;
fillText(cell.text.value, cell.text.x, cell.text.y);
}
/**
* Redraws the grid. No matter what the change, this is the only method required to refresh everything.
* @memberof canvasDataGrid
* @name draw
* @method
*/
self.draw = function (internal) {
if (self.dispatchEvent('beforedraw', {})) { return; }
if (!self.isChildGrid && (!self.height || !self.width)) {
return;
}
if (self.isChildGrid && internal) {
requestAnimationFrame(self.parentGrid.draw);
return;
}
if (self.intf.visible === false) {
return;
}
// initial values
var checkScrollHeight, rowHeaderCell, p, cx, cy, treeGrid, rowOpen,
rowHeight, cornerCell, y, x, c, h, w, s, r, rd, aCell,
selectionBorders = [],
rowHeaders = [],
l = self.data.length,
u = self.currentCell || {},
rowHeaderCellHeight = self.getRowHeaderCellHeight(),
columnHeaderCellWidth = self.getColumnHeaderCellWidth(),
cellHeight = self.style.cellHeight;
drawCount += 1;
p = performance.now();
// if data length has changed, there is no way to know
if (self.data.length > self.orders.rows.length) {
self.createRowOrders();
}
function drawScrollBars() {
var v = {
x: 0,
y: 0,
height: 0,
width: 0,
style: 'vertical-scroll-bar'
},
n = {
x: 0,
y: 0,
height: 0,
width: 0,
style: 'horizontal-scroll-bar'
},
vb = {
x: 0,
y: 0,
height: 0,
width: 0,
style: 'vertical-scroll-box'
},
nb = {
x: 0,
y: 0,
height: 0,
width: 0,
style: 'horizontal-scroll-box'
},
co = {
x: 0,
y: 0,
height: 0,
width: 0,
isCorner: true,
isScrollBoxCorner: true,
style: 'scroll-box-corner'
},
m = (self.style.scrollBarBoxMargin * 2),
d = self.style.scrollBarBoxMargin * 0.5;
self.ctx.strokeStyle = self.style.scrollBarBorderColor;
self.ctx.lineWidth = self.style.scrollBarBorderWidth;
// vertical
v.x += w - self.style.scrollBarWidth - self.style.scrollBarBorderWidth - d;
v.y += rowHeaderCellHeight;
v.width = self.style.scrollBarWidth + self.style.scrollBarBorderWidth + d;
v.height = h - rowHeaderCellHeight - self.style.scrollBarWidth - d - m;
self.ctx.fillStyle = self.style.scrollBarBackgroundColor;
fillRect(v.x, v.y, v.width, v.height + m);
strokeRect(v.x, v.y, v.width, v.height + m);
// vertical box
vb.x = v.x + self.style.scrollBarBoxMargin;
vb.y = rowHeaderCellHeight + self.style.scrollBarBoxMargin
+ ((v.height - self.scrollBox.scrollBoxHeight)
* (self.scrollBox.scrollTop / self.scrollBox.scrollHeight));
vb.width = self.style.scrollBarBoxWidth;
vb.height = self.scrollBox.scrollBoxHeight;
self.ctx.fillStyle = self.style.scrollBarBoxColor;
if (/vertical/.test(u.context)) {
self.ctx.fillStyle = self.style.scrollBarActiveColor;
}
if (vb.height < v.height) {
radiusRect(vb.x, vb.y, vb.width, vb.height, self.style.scrollBarBoxBorderRadius);
self.ctx.stroke();
self.ctx.fill();
}
// horizontal
n.x += columnHeaderCellWidth;
n.y += h - self.style.scrollBarWidth - d;
n.width = w - self.style.scrollBarWidth - columnHeaderCellWidth - d - m;
n.height = self.style.scrollBarWidth + self.style.scrollBarBorderWidth + d;
self.ctx.fillStyle = self.style.scrollBarBackgroundColor;
fillRect(n.x, n.y, n.width + m, n.height);
strokeRect(n.x, n.y, n.width + m, n.height);
// horizontal box
nb.y = n.y + self.style.scrollBarBoxMargin;
nb.x = columnHeaderCellWidth + self.style.scrollBarBoxMargin
+ ((n.width - self.scrollBox.scrollBoxWidth)
* (self.scrollBox.scrollLeft / self.scrollBox.scrollWidth));
nb.width = self.scrollBox.scrollBoxWidth;
nb.height = self.style.scrollBarBoxWidth;
self.ctx.fillStyle = self.style.scrollBarBoxColor;
if (/horizontal/.test(u.context)) {
self.ctx.fillStyle = self.style.scrollBarActiveColor;
}
if (nb.width < n.width) {
radiusRect(nb.x, nb.y, nb.width, nb.height, self.style.scrollBarBoxBorderRadius);
self.ctx.stroke();
self.ctx.fill();
}
//corner
self.ctx.strokeStyle = self.style.scrollBarCornerBorderColor;
self.ctx.fillStyle = self.style.scrollBarCornerBackgroundColor;
co.x = n.x + n.width + m;
co.y = v.y + v.height + m;
co.width = self.style.scrollBarWidth + self.style.scrollBarBorderWidth;
co.height = self.style.scrollBarWidth + self.style.scrollBarBorderWidth;
radiusRect(co.x, co.y, co.width, co.height, 0);
self.ctx.stroke();
self.ctx.fill();
self.visibleCells.unshift(v);
self.visibleCells.unshift(vb);
self.visibleCells.unshift(n);
self.visibleCells.unshift(nb);
self.visibleCells.unshift(co);
self.scrollBox.bar = {
v: v,
h: n
};
self.scrollBox.box = {
v: vb,
h: nb
};
}
function drawCell(d, rowIndex, rowOrderIndex) {
return function drawEach(header, headerIndex, columnOrderIndex) {
var cellStyle = header.style || 'cell',
cellGridAttributes,
cell,
isHeader = /HeaderCell/.test(cellStyle),
isCorner = /cornerCell/.test(cellStyle),
isRowHeader = 'rowHeaderCell' === cellStyle,
isColumnHeader = 'columnHeaderCell' === cellStyle,
selected = self.selections[rowOrderIndex] && self.selections[rowOrderIndex].indexOf(columnOrderIndex) !== -1,
hovered = self.hovers[d[self.uniqueId]] && self.hovers[d[self.uniqueId]].indexOf(columnOrderIndex) !== -1,
active = self.activeCell.rowIndex === rowOrderIndex && self.activeCell.columnIndex === columnOrderIndex,
isGrid = typeof d[header.name] === 'object' && d[header.name] !== null && d[header.name] !== undefined,
activeHeader = (self.orders.rows[self.activeCell.rowIndex] === rowOrderIndex
|| self.orders.columns[self.activeCell.columnIndex] === columnOrderIndex)
&& (columnOrderIndex === -1 || rowOrderIndex === -1)
? (isRowHeader ? 'activeRowHeaderCell' : 'activeColumnHeaderCell') : false,
val,
f = self.formatters[header.type || 'string'],
orderByArrowSize = 0,
treeArrowSize = 0,
cellWidth = self.sizes.columns[isRowHeader ? 'cornerCell' : header[self.uniqueId]] || header.width,
ev = {
value: d[header.name],
row: d,
header: header
};
if (cellStyle === 'headerCellCap') {
cellWidth = w - x;
}
// if no data or schema are defined, a width is provided to the stub column
if (cellWidth === undefined) {
cellWidth = self.style.columnWidth;
}
if (x + cellWidth + self.style.cellBorderWidth < 0) {
x += cellWidth + self.style.cellBorderWidth;
}
if (active) {
cellStyle = 'activeCell';
}
if (self.visibleRows.indexOf(rowIndex) === -1 && !isHeader) {
self.visibleRows.push(rowIndex);
}
val = self.dispatchEvent('formatcellvalue', ev);
cx = x;
cy = y;
if (cellStyle === 'cornerCell') {
cx = 0;
cy = 0;
} else if (isRowHeader) {
cx = 0;
} else if (isHeader) {
cy = 0;
}
cell = {
type: isGrid ? 'canvas-datagrid-cell' : header.type,
style: cellStyle,
nodeType: 'canvas-datagrid-cell',
x: cx,
y: cy,
horizontalAlignment: self.style[cellStyle + 'HorizontalAlignment'],
verticalAlignment: self.style[cellStyle + 'VerticalAlignment'],
offsetTop: self.canvasOffsetTop + cy,
offsetLeft: self.canvasOffsetLeft + cx,
scrollTop: self.scrollBox.scrollTop,
scrollLeft: self.scrollBox.scrollLeft,
active: active || activeHeader,
hovered: hovered,
selected: selected,
width: cellWidth,
height: cellHeight,
offsetWidth: cellWidth,
offsetHeight: cellHeight,
parentNode: self.intf.parentNode,
offsetParent: self.intf.parentNode,
data: d,
isCorner: isCorner,
isHeader: isHeader,
isColumnHeader: isColumnHeader,
isHeaderCellCap: !!header.isHeaderCellCap,
isRowHeader: isRowHeader,
rowOpen: rowOpen,
header: header,
columnIndex: columnOrderIndex,
rowIndex: rowOrderIndex,
sortColumnIndex: headerIndex,
sortRowIndex: rowIndex,
isGrid: isGrid,
gridId: (self.attributes.name || '') + d[self.uniqueId] + ':' + header[self.uniqueId],
parentGrid: self.intf,
innerHTML: '',
activeHeader: activeHeader,
value: isHeader && !isRowHeader ? (header.title || header.name) : d[header.name]
};
ev.cell = cell;
cell.userHeight = cell.isHeader ? self.sizes.rows[-1] : rowHeight;
cell.userWidth = cell.isHeader ? self.sizes.columns.cornerCell : self.sizes.columns[header[self.uniqueId]];
cell[self.uniqueId] = d[self.uniqueId];
self.visibleCells.unshift(cell);
if (self.dispatchEvent('beforerendercell', ev)) { return; }
self.ctx.fillStyle = self.style[cellStyle + 'BackgroundColor'];
self.ctx.strokeStyle = self.style[cellStyle + 'BorderColor'];
self.ctx.lineWidth = self.style[cellStyle + 'BorderWidth'];
if (hovered) {
self.ctx.fillStyle = self.style[cellStyle + 'HoverBackgroundColor'];
self.ctx.strokeStyle = self.style[cellStyle + 'HoverBorderColor'];
}
if (selected) {
self.ctx.fillStyle = self.style[cellStyle + 'SelectedBackgroundColor'];
self.ctx.strokeStyle = self.style[cellStyle + 'SelectedBorderColor'];
}
if (activeHeader) {
self.ctx.fillStyle = self.style[activeHeader + 'BackgroundColor'];
}
self.dispatchEvent('rendercell', ev);
if (cell.isGrid) {
if (cell.height !== rowHeight) {
cell.height = rowHeight || self.style.cellHeightWithChildGrid;
checkScrollHeight = true;
}
cell.width = self.sizes.columns[header[self.uniqueId]] || self.style.cellWidthWithChildGrid;
}
if (rowOpen && !cell.isRowHeader) {
cell.height = self.sizes.rows[rd[self.uniqueId]] || self.style.cellHeight;
}
if (!cell.isGrid) {
fillRect(cx, cy, cell.width, cell.height);
strokeRect(cx, cy, cell.width, cell.height);
}
self.ctx.save();
radiusRect(cell.x, cell.y, cell.width, cell.height, 0);
self.ctx.clip();
self.dispatchEvent('afterrendercell', ev);
if (cell.height !== cellHeight && !(rowOpen && !cell.isRowHeader)) {
self.sizes.rows[isHeader ? -1 : d[self.uniqueId]] = cell.height;
checkScrollHeight = true;
}
if (cell.width !== cellWidth) {
self.sizes.columns[header[self.uniqueId]] = cell.width;
checkScrollHeight = true;
}
if (isRowHeader && self.attributes.tree) {
if (!self.dispatchEvent('rendertreearrow', ev)) {
treeArrowSize = drawTreeArrow(cell, self.style[cellStyle + 'PaddingLeft'], cy, 0);
}
}
if ((self.attributes.showRowNumbers && isRowHeader)
|| !isRowHeader) {
if (cell.isGrid && !self.dispatchEvent('beforerendercellgrid', ev)) {
if (!self.childGrids[cell.gridId]) {
cellGridAttributes = self.args.cellGridAttributes || self.args;
cellGridAttributes.name = self.attributes.saveAppearance ? cell.gridId : undefined;
cellGridAttributes.parentNode = cell;
cellGridAttributes.data = d[header.name];
ev.cellGridAttributes = cellGridAttributes;
if (self.dispatchEvent('beforecreatecellgrid', ev)) { return; }
self.childGrids[cell.gridId] = self.createGrid(cellGridAttributes);
self.sizes.rows[rd[self.uniqueId]]
= self.sizes.rows[rd[self.uniqueId]] || self.style.cellGridHeight;
checkScrollHeight = true;
}
cell.grid = self.childGrids[cell.gridId];
cell.grid.parentNode = cell;
cell.grid.visible = true;
cell.grid.draw();
self.dispatchEvent('rendercellgrid', ev);
} else if (!cell.isGrid) {
if (self.childGrids[cell.gridId]) {
self.childGrids[cell.gridId].parentNode.offsetHeight = 0;
}
if (isHeader && self.orderBy === header.name) {
if (!self.dispatchEvent('renderorderbyarrow', ev)) {
orderByArrowSize = drawOrderByArrow(cx + self.style[cellStyle + 'PaddingLeft'], 0);
}
}
self.ctx.fillStyle = self.style[cellStyle + 'Color'];
if (hovered) {
self.ctx.fillStyle = self.style[cellStyle + 'HoverColor'];
}
if (selected) {
self.ctx.fillStyle = self.style[cellStyle + 'SelectedColor'];
}
if (activeHeader) {
self.ctx.fillStyle = self.style[activeHeader + 'Color'];
}
self.ctx.font = self.style[cellStyle + 'Font'];
cell.fontHeight = self.style[cellStyle + 'FontHeight'];
cell.treeArrowWidth = treeArrowSize;
cell.orderByArrowWidth = orderByArrowSize;
val = val !== undefined ? val : f
? f(ev) : '';
if (val === undefined && !f) {
val = '';
console.warn('canvas-datagrid: Unknown format '
+ header.type + ' add a cellFormater');
}
cell.formattedValue = ((val !== undefined && val !== null) ? val : '').toString();
if (self.columnFilters && self.columnFilters[val] !== undefined && isHeader) {
cell.formattedValue = self.attributes.filterTextPrefix + val;
}
if (!self.dispatchEvent('rendertext', ev)) {
if (cell.innerHTML || header.type === 'html') {
drawHtml(cell);
} else {
drawText(cell);
}
}
}
}
if (active) {
aCell = cell;
}
if (selected && !isRowHeader) {
if ((!self.selections[cell.rowIndex - 1]
|| self.selections[cell.rowIndex - 1].indexOf(cell.columnIndex) === -1
|| cell.rowIndex === 0)
&& !cell.isHeader) {
selectionBorders.push([cell, 't']);
}
if (!self.selections[cell.rowIndex + 1]
|| self.selections[cell.rowIndex + 1].indexOf(cell.columnIndex) === -1) {
selectionBorders.push([cell, 'b']);
}
if (!self.selections[cell.rowIndex] || cell.columnIndex === 0
|| self.selections[cell.rowIndex].indexOf(cell.columnIndex - 1) === -1) {
selectionBorders.push([cell, 'l']);
}
if (!self.selections[cell.rowIndex] || cell.columnIndex === s.length
|| self.selections[cell.rowIndex].indexOf(cell.columnIndex + 1) === -1) {
selectionBorders.push([cell, 'r']);
}
}
self.ctx.restore();
x += cell.width + self.style.cellBorderWidth;
return cell.width;
};
}
function drawRowHeader(rowData, index, rowOrderIndex) {
var a;
if (self.attributes.showRowHeaders) {
x = 0;
rowHeaderCell = {'rowHeaderCell': index + 1 };
rowHeaderCell[self.uniqueId] = rowData[self.uniqueId];
a = {
name: 'rowHeaderCell',
width: self.style.rowHeaderCellWidth,
style: 'rowHeaderCell',
type: 'string',
data: rowData[self.uniqueId],
index: -1
};
a[self.uniqueId] = rowData[self.uniqueId];
rowOpen = self.openChildren[rowData[self.uniqueId]];
drawCell(rowHeaderCell, index, rowOrderIndex)(a, -1, -1);
}
}
function drawHeaders() {
var d, g = s.length, i, o, columnHeaderCell, header;
rowHeaders.forEach(function (rArgs) {
y = rArgs[3];
cellHeight = rArgs[4];
drawRowHeader(rArgs[0], rArgs[1], rArgs[2]);
});
if (self.attributes.showColumnHeaders) {
x = (self.scrollBox.scrollLeft * -1) + self.scrollPixelLeft;
if (self.attributes.showRowHeaders) {
x += columnHeaderCellWidth;
}
y = 0;
// cell height might have changed during drawing
cellHeight = self.getRowHeaderCellHeight();
for (o = self.scrollIndexLeft; o < g; o += 1) {
i = self.orders.columns[o];
header = s[i];
d = {
title: header.title,
name: header.name,
width: header.width,
style: 'columnHeaderCell',
type: 'string',
index: o,
order: i
};
columnHeaderCell = {'columnHeaderCell': header.title || header.name};
columnHeaderCell[self.uniqueId] = 'h' + header[self.uniqueId];
d[self.uniqueId] = header[self.uniqueId];
x += drawCell(columnHeaderCell, -1, -1)(d, o, i);
if (x > self.width + self.scrollBox.scrollLeft) {
break;
}
}
// fill in the space right of the headers
if (x < w) {
c = {
name: '',
width: self.style.scrollBarWidth,
style: 'headerCellCap',
isHeaderCell: true,
isHeaderCellCap: true,
type: 'string',
index: s.length
};
c[self.uniqueId] = 'columnHeaderCell';
drawCell({endCap: ''}, -1, -1)(c, -1, -1);
}
// fill in the space right of the headers
if (self.attributes.showRowHeaders) {
cornerCell = {'cornerCell': '' };
cornerCell[self.uniqueId] = 'cornerCell';
x = 0;
c = {
name: 'cornerCell',
width: self.style.rowHeaderCellWidth,
style: 'cornerCell',
type: 'string',
index: -1
};
c[self.uniqueId] = 'cornerCell';
drawCell(cornerCell, -1, -1)(c, -1, -1);
}
}
}
function drawRow(r, d) {
var i, treeHeight, rowSansTreeHeight, o, g = s.length;
if (y - (cellHeight * 2) > h) {
return false;
}
rd = self.data[r];
rowOpen = self.openChildren[rd[self.uniqueId]];
rowSansTreeHeight = self.sizes.rows[rd[self.uniqueId]] || self.style.cellHeight;
treeHeight = (rowOpen ? self.sizes.trees[rd[self.uniqueId]] : 0);
rowHeight = rowSansTreeHeight + treeHeight;
if (y < rowHeight * -1) {
return false;
}
if (self.attributes.showRowHeaders) {
x += columnHeaderCellWidth;
}
cellHeight = rowHeight;
for (o = self.scrollIndexLeft; o < g; o += 1) {
i = self.orders.columns[o];
x += drawCell(rd, r, d)(s[i], i, o);
if (x > self.width) {
self.scrollIndexRight = o;
self.scrollPixelRight = x;
break;
}
}
// cell height might have changed during drawing
cellHeight = rowHeight;
x = (self.scrollBox.scrollLeft * -1) + self.scrollPixelLeft + self.style.cellBorderWidth;
// don't draw a tree for the new row
treeGrid = self.childGrids[rd[self.uniqueId]];
if (r !== self.data.length && rowOpen) {
treeGrid.visible = true;
treeGrid.parentNode = {
offsetTop: y + rowSansTreeHeight + self.canvasOffsetTop,
offsetLeft: columnHeaderCellWidth - 1 + self.canvasOffsetLeft,
offsetHeight: treeHeight,
offsetWidth: self.width - columnHeaderCellWidth - self.style.scrollBarWidth - 1,
offsetParent: self.intf.parentNode,
parentNode: self.intf.parentNode,
style: self.style,
nodeType: 'canvas-datagrid-tree',
scrollTop: self.scrollBox.scrollTop,
scrollLeft: self.scrollBox.scrollLeft,
rowIndex: r
};
self.visibleCells.unshift({
rowIndex: x,
columnIndex: 0,
y: treeGrid.parentNode.offsetTop,
x: treeGrid.parentNode.offsetLeft,
height: treeGrid.parentNode.offsetHeight,
width: treeGrid.parentNode.offsetWidth,
style: 'tree-grid',
type: treeGrid.parentNode.nodeType
});
treeGrid.draw();
} else if (treeGrid) {
treeGrid.parentNode.offsetHeight = 0;
delete self.sizes.trees[rd[self.uniqueId]];
}
rowHeaders.push([rd, r, d, y, rowHeight]);
y += cellHeight + self.style.cellBorderWidth;
return true;
}
function initDraw() {
self.visibleRows = [];
s = self.getVisibleSchema();
self.visibleCells = [];
self.canvasOffsetTop = self.isChildGrid ? self.parentNode.offsetTop : 0;
self.canvasOffsetLeft = self.isChildGrid ? self.parentNode.offsetLeft : 0;
h = self.height;
w = self.width;
if (!self.isChildGrid) {
self.ctx.scale(window.devicePixelRatio, window.devicePixelRatio);
}
}
function drawBackground() {
radiusRect(0, 0, w, h, 0);
self.ctx.clip();
self.ctx.fillStyle = self.style.backgroundColor;
fillRect(0, 0, w, h);
}
function drawRows() {
var o, n, i, g = s.length;
x = (self.scrollBox.scrollLeft * -1) + self.scrollPixelLeft + self.style.cellBorderWidth;
y = (self.scrollBox.scrollTop * -1) + rowHeaderCellHeight + self.scrollPixelTop + self.style.cellBorderWidth;
for (r = self.scrollIndexTop; r < l; r += 1) {
n = self.orders.rows[r];
if (!drawRow(n, r)) {
self.scrollIndexBottom = r;
self.scrollPixelBottom = y;
break;
}
}
if (self.attributes.showNewRow) {
if (self.attributes.showRowHeaders) {
x += columnHeaderCellWidth;
}
rowHeight = cellHeight = self.style.cellHeight;
rowOpen = false;
for (o = self.scrollIndexLeft; o < g; o += 1) {
i = self.orders.columns[o];
x += drawCell(self.newRow, self.data.length, self.data.length)(s[i], i, o);
if (x > self.width + self.scrollBox.scrollLeft) {
break;
}
}
rowHeaders.push([self.newRow, self.data.length, self.data.length, y, rowHeight]);
}
}
function drawReorderMarkers() {
if (!self.reorderObject) { return; }
var b = {
height: self.reorderObject.height,
width: self.reorderObject.width,
x: self.reorderObject.x + self.reorderObject.dragOffset.x,
y: self.reorderObject.y + self.reorderObject.dragOffset.y
},
m = {
width: w,
heigth: h,
x: 0,
y: 0
};
self.ctx.fillStyle = self.style.reorderMarkerBackgroundColor;
self.ctx.lineWidth = self.style.reorderMarkerBorderWidth;
self.ctx.strokeStyle = self.style.reorderMarkerBorderColor;
if (self.dragMode === 'row-reorder') {
b.width = w;
b.x = 0;
m.width = w;
m.y = self.currentCell.y;
fillRect(b.x, b.y, b.width, b.height);
strokeRect(b.x, b.y, b.width, b.height);
self.ctx.lineWidth = self.style.reorderMarkerIndexBorderWidth;
self.ctx.strokeStyle = self.style.reorderMarkerIndexBorderColor;
if (self.currentCell.rowIndex !== self.reorderObject.rowIndex
&& self.currentCell.rowIndex - 1 !== self.reorderObject.rowIndex) {
addBorderLine(m, 't');
}
} else if (self.dragMode === 'column-reorder' && self.reorderObject) {
b.height = h;
b.y = 0;
m.height = h;
m.x = self.currentCell.x;
fillRect(b.x, b.y, b.width, b.height);
strokeRect(b.x, b.y, b.width, b.height);
self.ctx.lineWidth = self.style.reorderMarkerIndexBorderWidth;
self.ctx.strokeStyle = self.style.reorderMarkerIndexBorderColor;
if (self.currentCell.columnIndex !== self.reorderObject.columnIndex
&& self.currentCell.columnIndex - 1 !== self.reorderObject.columnIndex) {
addBorderLine(m, 'l');
}
}
}
function drawBorder() {
self.ctx.lineWidth = self.style.gridBorderWidth;
self.ctx.strokeStyle = self.style.gridBorderColor;
strokeRect(0, 0, self.width, self.height);
}
function drawSelectionBorders() {
self.ctx.lineWidth = self.style.selectionOverlayBorderWidth;
self.ctx.strokeStyle = self.style.selectionOverlayBorderColor;
selectionBorders.forEach(function (c) {
addBorderLine(c[0], c[1]);
});
}
function drawActiveCell() {
if (!aCell) { return; }
if (self.attributes.selectionMode === 'row') {
if (self.activeCell && self.activeCell.rowIndex === aCell.rowIndex) {
self.ctx.lineWidth = self.style.activeCellOverlayBorderWidth;
self.ctx.strokeStyle = self.style.activeCellOverlayBorderColor;
strokeRect(0, aCell.y, self.getHeaderWidth() + columnHeaderCellWidth, rowHeight);
}
} else {
self.ctx.lineWidth = self.style.activeCellOverlayBorderWidth;
self.ctx.strokeStyle = self.style.activeCellOverlayBorderColor;
strokeRect(aCell.x, aCell.y, aCell.width, aCell.height);
}
}
function drawDebug() {
perfCounters[drawCount % perfWindowSize] = performance.now() - p;
var d;
if (self.attributes.debug) {
self.ctx.font = '11px sans-serif';
d = {};
d.perf = (perfCounters.reduce(function (a, b) {
return a + b;
}, 0) / perfCounters.length).toFixed(1)
+ 'ms (' +
perfCounters.map(function (a) { return a.toFixed(1); }).join(', ') + ')';
d.htmlImages = Object.keys(self.htmlImageCache).length;
d.scrollBox = self.scrollBox.toString();
d.scrollIndex = '{"top": ' + self.scrollIndexTop + ', "left": ' + self.scrollIndexLeft + '}';
d.scrollPixel = '{"top": ' + self.scrollPixelTop + ', "left": ' + self.scrollPixelLeft + '}';
d.canvasOffset = '{"top": ' + self.canvasOffsetTop + ', "left": ' + self.canvasOffsetLeft + '}';
d.pointerLockPosition = self.pointerLockPosition ?
self.pointerLockPosition.x + ', ' + self.pointerLockPosition.y : '';
d.size = '{"width": ' + self.width + ', "height": ' + self.height + '}';
d.mouse = '{"x": ' + self.mouse.x + ', "y": ' + self.mouse.y + '}';
d.touch = !self.touchStart
? '' : '{"x": ' + self.touchStart.x + ', "y": ' + self.touchStart.y + "}";
d.entities = self.visibleCells.length;
d.hasFocus = self.hasFocus;
d.dragMode = self.dragMode;
if (self.currentCell) {
d.columnIndex = self.currentCell.columnIndex;
d.rowIndex = self.currentCell.rowIndex;
d.sortColumnIndex = self.currentCell.sortColumnIndex;
d.sortRowIndex = self.currentCell.sortRowIndex;
d.context = self.currentCell.context;
d.dragContext = self.currentCell.dragContext;
d.style = self.currentCell.style;
d.type = self.currentCell.type;
}
self.ctx.save();
Object.keys(d).forEach(function (key, index) {
var m = key + ': ' + d[key],
lh = 14;
self.ctx.fillStyle = 'rgba(255, 255, 255, 0.8)';
fillRect(columnHeaderCellWidth, lh + (index * lh), 800, lh);
self.ctx.fillStyle = 'rgba(0, 0, 0, 1)';
fillText(m, columnHeaderCellWidth + 1, rowHeaderCellHeight + (index * lh));
});
self.ctx.restore();
}
}
self.ctx.save();
initDraw();
drawBackground();
drawRows();
drawSelectionBorders();
drawActiveCell();
drawHeaders();
drawReorderMarkers();
drawScrollBars();
if (checkScrollHeight) {
self.resize(true);
}
drawBorder();
drawDebug();
if (self.dispatchEvent('afterdraw', {})) { return; }
self.ctx.restore();
};
};
});