| 1 |
function tableToCanvas (table, parent) { |
| 2 |
var canvas = document.createElement ('canvas'); |
| 3 |
parent.appendChild (canvas); |
| 4 |
if (window.G_vmlCanvasManager) { |
| 5 |
canvas = G_vmlCanvasManager.initElement (canvas); |
| 6 |
} |
| 7 |
var c2d = canvas.getContext ('2d'); |
| 8 |
|
| 9 |
var param = { |
| 10 |
columnLeft: 20, |
| 11 |
columnWidth: 20, |
| 12 |
columnSpacing: 5, |
| 13 |
columnGroupTop: 10, |
| 14 |
columnTop: 15, |
| 15 |
rowTop: 20, |
| 16 |
rowHeight: 20, |
| 17 |
rowSpacing: 5, |
| 18 |
rowGroupLeft: 10, |
| 19 |
rowLeft: 15, |
| 20 |
cellTop: 20, |
| 21 |
cellLeft: 20, |
| 22 |
cellBottom: 20, |
| 23 |
cellRight: 20, |
| 24 |
explicitColumnGroupStrokeStyle: 'black', |
| 25 |
explicitColumnStrokeStyle: 'black', |
| 26 |
impliedColumnStrokeStyle: '#C0C0C0', |
| 27 |
explicitHeaderRowGroupStrokeStyle: 'black', |
| 28 |
explicitHeaderRowGroupFillStyle: 'rgba(220, 220, 220, 0.3)', |
| 29 |
explicitBodyRowGroupStrokeStyle: 'black', |
| 30 |
explicitBodyRowGroupFillStyle: 'rgba(0, 0, 0, 0)', |
| 31 |
explicitFooterRowGroupStrokeStyle: 'black', |
| 32 |
explicitFooterRowGroupFillStyle: 'rgba(220, 220, 220, 0.3)', |
| 33 |
explicitRowStrokeStyle: 'black', |
| 34 |
impliedRowStrokeStyle: '#C0C0C0', |
| 35 |
headerCellFillStyle: 'rgba(192, 192, 192, 0.5)', |
| 36 |
headerCellStrokeStyle: 'black', |
| 37 |
dataCellFillStyle: 'rgba(0, 0, 0, 0)', |
| 38 |
dataCellStrokeStyle: 'black', |
| 39 |
overlappingCellFillStyle: 'red', |
| 40 |
overlappingCellStrokeStyle: 'rgba(0, 0, 0, 0)' |
| 41 |
}; |
| 42 |
|
| 43 |
var columnNumber = table.column.length; |
| 44 |
if (columnNumber < table.cell.length) columnNumber = table.cell.length; |
| 45 |
var rowNumber = 0; |
| 46 |
for (var i = 1; i < table.cell.length; i++) { |
| 47 |
if (table.cell[i] && rowNumber < table.cell[i].length) { |
| 48 |
rowNumber = table.cell[i].length; |
| 49 |
} |
| 50 |
} |
| 51 |
|
| 52 |
canvas.style.width = 'auto'; // NOTE: Opera9 has default style="" |
| 53 |
canvas.style.height = 'auto'; |
| 54 |
// NOTE: Set style="" before width/height="" for ExplorerCanvas compatibility |
| 55 |
canvas.width = param.cellLeft |
| 56 |
+ (param.columnWidth + param.columnSpacing) * columnNumber |
| 57 |
+ param.cellRight; |
| 58 |
canvas.height = param.cellTop |
| 59 |
+ (param.rowHeight + param.rowSpacing) * rowNumber |
| 60 |
+ param.cellBottom; |
| 61 |
|
| 62 |
var y = param.rowTop; |
| 63 |
for (var i = 1; i < table.row_group.length; i++) { |
| 64 |
var rg = table.row_group[i]; |
| 65 |
c2d.beginPath (); |
| 66 |
if (rg.type == 'thead') { |
| 67 |
c2d.strokeStyle = param.explicitHeaderRowGroupStrokeStyle; |
| 68 |
c2d.fillStyle = param.explicitHeaderRowGroupFillStyle; |
| 69 |
} else if (rg.type == 'tfoot') { |
| 70 |
c2d.strokeStyle = param.explicitFooterRowGroupStrokeStyle; |
| 71 |
c2d.fillStyle = param.explicitFooterRowGroupFillStyle; |
| 72 |
} else { |
| 73 |
c2d.strokeStyle = param.explicitBodyRowGroupStrokeStyle; |
| 74 |
c2d.fillStyle = param.explicitBodyRowGroupFillStyle; |
| 75 |
} |
| 76 |
var dy = (param.rowHeight + param.rowSpacing) * rg.height; |
| 77 |
c2d.moveTo (param.rowGroupLeft, y); |
| 78 |
c2d.lineTo (param.rowGroupLeft, y + dy - param.rowSpacing); |
| 79 |
c2d.stroke (); |
| 80 |
c2d.closePath (); |
| 81 |
c2d.beginPath (); |
| 82 |
c2d.rect (param.rowGroupLeft, |
| 83 |
y, |
| 84 |
(param.columnWidth + param.columnSpacing) * columnNumber - param.columnSpacing, |
| 85 |
dy - param.rowSpacing); |
| 86 |
c2d.fill (); |
| 87 |
c2d.closePath (); |
| 88 |
y += dy; |
| 89 |
i += rg.height - 1; |
| 90 |
} |
| 91 |
|
| 92 |
c2d.beginPath (); |
| 93 |
c2d.strokeStyle = param.explicitColumnGroupStrokeStyle; |
| 94 |
var x = param.columnLeft; |
| 95 |
for (var i = 1; i < table.column_group.length; i++) { |
| 96 |
var cg = table.column_group[i]; |
| 97 |
c2d.moveTo (x, param.columnGroupTop); |
| 98 |
x += (param.columnWidth + param.columnSpacing) * cg.width; |
| 99 |
c2d.lineTo (x - param.columnSpacing, param.columnGroupTop); |
| 100 |
i += cg.width - 1; |
| 101 |
} |
| 102 |
c2d.stroke (); |
| 103 |
c2d.closePath (); |
| 104 |
|
| 105 |
var x = param.columnLeft; |
| 106 |
for (var i = 1; i < columnNumber; i++) { |
| 107 |
var c = table.column[i]; |
| 108 |
c2d.beginPath (); |
| 109 |
c2d.moveTo (x, param.columnTop); |
| 110 |
x += param.columnWidth + param.columnSpacing; |
| 111 |
c2d.lineTo (x - param.columnSpacing, param.columnTop); |
| 112 |
if (c) { |
| 113 |
c2d.strokeStyle = param.explicitColumnStrokeStyle; |
| 114 |
} else { |
| 115 |
c2d.strokeStyle = param.impliedColumnStrokeStyle; |
| 116 |
} |
| 117 |
c2d.stroke (); |
| 118 |
c2d.closePath (); |
| 119 |
} |
| 120 |
|
| 121 |
var map = document.createElement ('map'); |
| 122 |
var x = param.cellLeft; |
| 123 |
for (var i = 1; i < table.cell.length; i++) { |
| 124 |
var y = param.cellTop; |
| 125 |
if (!table.cell[i]) continue; |
| 126 |
for (var j = 1; j < table.cell[i].length; j++) { |
| 127 |
var c = table.cell[i][j]; |
| 128 |
if (c && ((c[0].x == i && c[0].y == j) || c.length > 1)) { |
| 129 |
c2d.beginPath (); |
| 130 |
var width = (param.columnWidth + param.columnSpacing) * c[0].width |
| 131 |
- param.columnSpacing; |
| 132 |
var height = (param.rowHeight + param.rowSpacing) * c[0].height |
| 133 |
- param.rowSpacing; |
| 134 |
if (c.length == 1) { |
| 135 |
c2d.rect (x, y, width, height); |
| 136 |
c2d.fillStyle = c[0].is_header |
| 137 |
? param.headerCellFillStyle : param.dataCellFillStyle; |
| 138 |
c2d.strokeStyle = c[0].is_header |
| 139 |
? param.headerCellStrokeStyle : param.dataCellStrokeStyle; |
| 140 |
if (c[0].id) { |
| 141 |
var area = document.createElement ('area'); |
| 142 |
area.shape = 'rect'; |
| 143 |
area.coords = [x, y, x + width, y + height].join (','); |
| 144 |
area.alt = 'Cell (' + c[0].x + ', ' + c[0].y + ')'; |
| 145 |
area.href = '#node-' + c[0].id; |
| 146 |
area.id = 'cell-' + c[0].id; |
| 147 |
map.appendChild (area); |
| 148 |
} |
| 149 |
} else { |
| 150 |
c2d.rect (x, y, param.columnWidth, param.rowHeight); |
| 151 |
c2d.fillStyle = param.overlappingCellFillStyle; |
| 152 |
c2d.strokeStyle = param.overlappingCellStrokeStyle; |
| 153 |
} |
| 154 |
c2d.fill (); |
| 155 |
c2d.stroke (); |
| 156 |
c2d.closePath (); |
| 157 |
} |
| 158 |
y += param.rowHeight + param.rowSpacing; |
| 159 |
} |
| 160 |
x += param.columnWidth + param.columnSpacing; |
| 161 |
} |
| 162 |
|
| 163 |
var y = param.rowTop; |
| 164 |
for (var i = 1; i < rowNumber; i++) { |
| 165 |
c2d.beginPath (); |
| 166 |
c2d.moveTo (param.rowLeft, y); |
| 167 |
y += param.rowHeight + param.rowSpacing; |
| 168 |
c2d.lineTo (param.rowLeft, y - param.rowSpacing); |
| 169 |
//if (true) { |
| 170 |
c2d.strokeStyle = param.explicitRowStrokeStyle; |
| 171 |
//} else { |
| 172 |
// c2d.strokeStyle = param.impliedRowStrokeStyle; |
| 173 |
//} |
| 174 |
c2d.stroke (); |
| 175 |
c2d.closePath (); |
| 176 |
} |
| 177 |
|
| 178 |
if (map.hasChildNodes ()) { |
| 179 |
var mapid = 'table-map-' + ++document.TableMapId; |
| 180 |
map.name = mapid; |
| 181 |
parent.appendChild (map); |
| 182 |
var img = document.createElement ('img'); |
| 183 |
img.src = canvas.toDataURL (); |
| 184 |
img.useMap = '#' + mapid; |
| 185 |
parent.appendChild (img); |
| 186 |
canvas.style.display = 'none'; |
| 187 |
} |
| 188 |
} // tableToCanvas |
| 189 |
|
| 190 |
if (!document.TableMapId) document.TableMapId = 0; |
| 191 |
|
| 192 |
/* |
| 193 |
|
| 194 |
Copyright 2007 Wakaba <w@suika.fam.cx> |
| 195 |
|
| 196 |
This library is free software; you can redistribute it |
| 197 |
and/or modify it under the same terms as Perl itself. |
| 198 |
|
| 199 |
*/ |
| 200 |
/* $Date: 2007/05/27 10:00:48 $ */ |
Parent Directory
| 
Revision Log