test/html-whatpm/table-script.js

function tableToCanvas (table, parent, idPrefix) {
  var canvas = document.createElement ('canvas');
  parent.appendChild (canvas);
  if (window.G_vmlCanvasManager) {
    canvas = G_vmlCanvasManager.initElement (canvas);
  }
  var c2d = canvas.getContext ('2d');

  var param = {
    columnLeft: 20,
    columnWidth: 20,
    columnSpacing: 5,
    columnGroupTop: 10,
    columnTop: 15,
    rowTop: 20,
    rowHeight: 20,
    rowSpacing: 5,
    rowGroupLeft: 10,
    rowGroupFillLeft: 20, /* Must be same as columnLeft */
    rowLeft: 15,
    cellTop: 20,
    cellLeft: 20, /* Must be same as columnLeft */
    cellBottom: 20,
    cellRight: 20,
    explicitColumnGroupStrokeStyle: 'black',
    explicitColumnStrokeStyle: 'black',
    impliedColumnStrokeStyle: '#C0C0C0',
    explicitHeaderRowGroupStrokeStyle: 'black',
    explicitHeaderRowGroupFillStyle: 'rgba(220, 220, 220, 0.3)',
    explicitBodyRowGroupStrokeStyle: 'black',
    explicitBodyRowGroupFillStyle: 'rgba(0, 0, 0, 0)',
    explicitFooterRowGroupStrokeStyle: 'black',
    explicitFooterRowGroupFillStyle: 'rgba(220, 220, 220, 0.3)',
    explicitRowStrokeStyle: 'black',
    impliedRowStrokeStyle: '#C0C0C0',
    headerCellFillStyle: 'rgba(192, 192, 192, 0.5)',
    headerCellStrokeStyle: 'black',
    dataCellFillStyle: 'rgba(0, 0, 0, 0)',
    dataCellStrokeStyle: 'black',
    overlappingCellFillStyle: 'red',
    overlappingCellStrokeStyle: 'rgba(0, 0, 0, 0)',
    highlightCellFillStyle: 'yellow'
  };

  canvas.drawTable = function () {

var columnNumber = table.column.length;
if (columnNumber < table.cell.length) columnNumber = table.cell.length;
var rowNumber = 0;
for (var i = 0; i < table.cell.length; i++) {
  if (table.cell[i] && rowNumber < table.cell[i].length) {
    rowNumber = table.cell[i].length;
  }
}

canvas.style.width = 'auto'; // NOTE: Opera9 has default style=""
canvas.style.height = 'auto';
// NOTE: Set style="" before width/height="" for ExplorerCanvas compatibility
canvas.width = param.cellLeft
    + (param.columnWidth + param.columnSpacing) * columnNumber
    + param.cellRight;
canvas.height = param.cellTop
    + (param.rowHeight + param.rowSpacing) * rowNumber
    + param.cellBottom;

var y = param.rowTop;
for (var i = 0; i < table.row_group.length; i++) {
  var rg = table.row_group[i];
  c2d.beginPath ();
  if (rg.type == 'thead') {
    c2d.strokeStyle = param.explicitHeaderRowGroupStrokeStyle;
    c2d.fillStyle = param.explicitHeaderRowGroupFillStyle;
  } else if (rg.type == 'tfoot') {
    c2d.strokeStyle = param.explicitFooterRowGroupStrokeStyle;
    c2d.fillStyle = param.explicitFooterRowGroupFillStyle;
  } else {
    c2d.strokeStyle = param.explicitBodyRowGroupStrokeStyle;
    c2d.fillStyle = param.explicitBodyRowGroupFillStyle;
  }
  var dy = (param.rowHeight + param.rowSpacing) * rg.height;
  c2d.moveTo (param.rowGroupLeft, y);
  c2d.lineTo (param.rowGroupLeft, y + dy - param.rowSpacing);
  c2d.stroke ();
  c2d.closePath ();
  c2d.beginPath ();
  c2d.rect (param.rowGroupFillLeft,
            y,
            (param.columnWidth + param.columnSpacing) * columnNumber - param.columnSpacing,
            dy - param.rowSpacing);
  c2d.fill ();
  c2d.closePath ();
  y += dy;
  i += rg.height - 1;
}

c2d.beginPath ();
c2d.strokeStyle = param.explicitColumnGroupStrokeStyle;
var x = param.columnLeft;
for (var i = 0; i < table.column_group.length; i++) {
  var cg = table.column_group[i];
  c2d.moveTo (x, param.columnGroupTop);
  x += (param.columnWidth + param.columnSpacing) * cg.width;
  c2d.lineTo (x - param.columnSpacing, param.columnGroupTop);
  i += cg.width - 1;
}
c2d.stroke ();
c2d.closePath ();

var x = param.columnLeft;
for (var i = 0; i < columnNumber; i++) {
  var c = table.column[i];
  c2d.beginPath ();
  c2d.moveTo (x, param.columnTop);
  x += param.columnWidth + param.columnSpacing;
  c2d.lineTo (x - param.columnSpacing, param.columnTop);
  if (c) {
    c2d.strokeStyle = param.explicitColumnStrokeStyle;
  } else {
    c2d.strokeStyle = param.impliedColumnStrokeStyle;
  }
  c2d.stroke ();
  c2d.closePath ();
}

var map = document.createElement ('map');
var x = param.cellLeft;
for (var i = 0; i < table.cell.length; i++) {
  var y = param.cellTop;
  if (!table.cell[i]) continue;
  for (var j = 0; j < table.cell[i].length; j++) {
    var c = table.cell[i][j];
    if (c && ((c[0].x == i && c[0].y == j) || c.length > 1)) {
      c2d.beginPath ();
      var width = (param.columnWidth + param.columnSpacing) * c[0].width
          - param.columnSpacing;
      var height = (param.rowHeight + param.rowSpacing) * c[0].height
          - param.rowSpacing;
      if (c.length == 1) {
        c2d.rect (x, y, width, height);
        c2d.fillStyle = c[0].is_header
            ? param.headerCellFillStyle : param.dataCellFillStyle;
        c2d.strokeStyle = c[0].is_header
            ? param.headerCellStrokeStyle : param.dataCellStrokeStyle;
        if (c[0].id) {
          var area = document.createElement ('area');
          area.shape = 'rect';
          area.coords = [x, y, x + width, y + height].join (',');
          area.alt = 'Cell (' + c[0].x + ', ' + c[0].y + ')';
          area.href = '#' + idPrefix + 'node-' + c[0].id;
          area.id = idPrefix + 'cell-' + c[0].id;
          area.onmouseover = (function (v) {
            return function () {
              canvas.highlightCells (v);
            };
          }) (c[0].header);
          map.appendChild (area);
        }
      } else {
        c2d.rect (x, y, param.columnWidth, param.rowHeight);
        c2d.fillStyle = param.overlappingCellFillStyle;
        c2d.strokeStyle = param.overlappingCellStrokeStyle;
      }
      c2d.fill ();
      c2d.stroke ();
      c2d.closePath ();
    }
    y += param.rowHeight + param.rowSpacing;
  }
  x += param.columnWidth + param.columnSpacing;
}

var y = param.rowTop;
for (var i = 0; i < rowNumber; i++) {
  c2d.beginPath ();
  c2d.moveTo (param.rowLeft, y);
  y += param.rowHeight + param.rowSpacing;
  c2d.lineTo (param.rowLeft, y - param.rowSpacing);
  //if (true) {
    c2d.strokeStyle = param.explicitRowStrokeStyle;
  //} else {
  //  c2d.strokeStyle = param.impliedRowStrokeStyle;
  //}
  c2d.stroke ();
  c2d.closePath ();
}

    return map;
  }; // canvas.drawTable

  canvas.highlightCells = function (cells) {
    var c2d = this.getContext ('2d');

    for (var x in cells) {
      for (var y in cells[x]) {
        if (cells[x][y]) {
          var cell = table.cell[x][y][0];
          c2d.beginPath ();
          c2d.rect
              (param.cellLeft + (param.columnWidth + param.columnSpacing) * x,
               param.cellTop + (param.rowHeight + param.rowSpacing) * y,
               (param.columnWidth + param.columnSpacing) * cell.width - param.columnSpacing,
               (param.rowHeight + param.rowSpacing) * cell.height - param.rowSpacing);
          c2d.fillStyle = param.highlightCellFillStyle;
          c2d.fill ();
          c2d.stroke ();
          c2d.closePath ();
        }
      }
    }
    this.updateImgElement ();
  } // canvas.highlightCells

  var map = canvas.drawTable ();
  if (map.hasChildNodes ()) {
    var mapid = /* idPrefix + */ 'table-map-' + ++document.TableMapId;
    map.name = mapid;
    parent.appendChild (map);
    var img = document.createElement ('img');
    img.useMap = '#' + mapid;
    canvas.updateImgElement = function () {
      img.src = this.toDataURL ();
    };
    img.onmouseover = function (e) {
      if (e.target == e.currentTarget) {
        canvas.drawTable ();
        canvas.updateImgElement ();
      }
    };
    canvas.updateImgElement ();
    parent.appendChild (img);
    canvas.style.display = 'none';
  } else {
    canvas.updateImgElement = function () {};
  }
} // tableToCanvas

if (!document.TableMapId) document.TableMapId = 0;

/*

Copyright 2007-2008 Wakaba <w@suika.fam.cx>

This library is free software; you can redistribute it
and/or modify it under the same terms as Perl itself.

*/
/* $Date: 2008/05/05 06:56:01 $ */
1	wakaba	1.4	function tableToCanvas (table, parent, idPrefix) {
2	wakaba	1.1	var canvas = document.createElement ('canvas');
3	wakaba	1.3	parent.appendChild (canvas);
4	wakaba	1.2	if (window.G_vmlCanvasManager) {
5			canvas = G_vmlCanvasManager.initElement (canvas);
6			}
7	wakaba	1.1	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	wakaba	1.6	rowGroupFillLeft: 20, /* Must be same as columnLeft */
20	wakaba	1.1	rowLeft: 15,
21			cellTop: 20,
22	wakaba	1.6	cellLeft: 20, /* Must be same as columnLeft */
23	wakaba	1.1	cellBottom: 20,
24			cellRight: 20,
25			explicitColumnGroupStrokeStyle: 'black',
26			explicitColumnStrokeStyle: 'black',
27			impliedColumnStrokeStyle: '#C0C0C0',
28			explicitHeaderRowGroupStrokeStyle: 'black',
29			explicitHeaderRowGroupFillStyle: 'rgba(220, 220, 220, 0.3)',
30			explicitBodyRowGroupStrokeStyle: 'black',
31			explicitBodyRowGroupFillStyle: 'rgba(0, 0, 0, 0)',
32			explicitFooterRowGroupStrokeStyle: 'black',
33			explicitFooterRowGroupFillStyle: 'rgba(220, 220, 220, 0.3)',
34			explicitRowStrokeStyle: 'black',
35			impliedRowStrokeStyle: '#C0C0C0',
36			headerCellFillStyle: 'rgba(192, 192, 192, 0.5)',
37			headerCellStrokeStyle: 'black',
38			dataCellFillStyle: 'rgba(0, 0, 0, 0)',
39			dataCellStrokeStyle: 'black',
40			overlappingCellFillStyle: 'red',
41	wakaba	1.7	overlappingCellStrokeStyle: 'rgba(0, 0, 0, 0)',
42			highlightCellFillStyle: 'yellow'
43	wakaba	1.1	};
44
45	wakaba	1.7	canvas.drawTable = function () {
46
47	wakaba	1.1	var columnNumber = table.column.length;
48			if (columnNumber < table.cell.length) columnNumber = table.cell.length;
49			var rowNumber = 0;
50	wakaba	1.5	for (var i = 0; i < table.cell.length; i++) {
51	wakaba	1.1	if (table.cell[i] && rowNumber < table.cell[i].length) {
52			rowNumber = table.cell[i].length;
53			}
54			}
55
56	wakaba	1.2	canvas.style.width = 'auto'; // NOTE: Opera9 has default style=""
57			canvas.style.height = 'auto';
58			// NOTE: Set style="" before width/height="" for ExplorerCanvas compatibility
59	wakaba	1.1	canvas.width = param.cellLeft
60			+ (param.columnWidth + param.columnSpacing) * columnNumber
61			+ param.cellRight;
62			canvas.height = param.cellTop
63			+ (param.rowHeight + param.rowSpacing) * rowNumber
64			+ param.cellBottom;
65
66			var y = param.rowTop;
67	wakaba	1.5	for (var i = 0; i < table.row_group.length; i++) {
68	wakaba	1.1	var rg = table.row_group[i];
69			c2d.beginPath ();
70			if (rg.type == 'thead') {
71			c2d.strokeStyle = param.explicitHeaderRowGroupStrokeStyle;
72			c2d.fillStyle = param.explicitHeaderRowGroupFillStyle;
73			} else if (rg.type == 'tfoot') {
74			c2d.strokeStyle = param.explicitFooterRowGroupStrokeStyle;
75			c2d.fillStyle = param.explicitFooterRowGroupFillStyle;
76			} else {
77			c2d.strokeStyle = param.explicitBodyRowGroupStrokeStyle;
78			c2d.fillStyle = param.explicitBodyRowGroupFillStyle;
79			}
80			var dy = (param.rowHeight + param.rowSpacing) * rg.height;
81			c2d.moveTo (param.rowGroupLeft, y);
82			c2d.lineTo (param.rowGroupLeft, y + dy - param.rowSpacing);
83			c2d.stroke ();
84			c2d.closePath ();
85			c2d.beginPath ();
86	wakaba	1.6	c2d.rect (param.rowGroupFillLeft,
87	wakaba	1.1	y,
88			(param.columnWidth + param.columnSpacing) * columnNumber - param.columnSpacing,
89			dy - param.rowSpacing);
90			c2d.fill ();
91			c2d.closePath ();
92			y += dy;
93			i += rg.height - 1;
94			}
95
96			c2d.beginPath ();
97			c2d.strokeStyle = param.explicitColumnGroupStrokeStyle;
98			var x = param.columnLeft;
99	wakaba	1.5	for (var i = 0; i < table.column_group.length; i++) {
100	wakaba	1.1	var cg = table.column_group[i];
101			c2d.moveTo (x, param.columnGroupTop);
102			x += (param.columnWidth + param.columnSpacing) * cg.width;
103			c2d.lineTo (x - param.columnSpacing, param.columnGroupTop);
104			i += cg.width - 1;
105			}
106			c2d.stroke ();
107			c2d.closePath ();
108
109			var x = param.columnLeft;
110	wakaba	1.5	for (var i = 0; i < columnNumber; i++) {
111	wakaba	1.1	var c = table.column[i];
112			c2d.beginPath ();
113			c2d.moveTo (x, param.columnTop);
114			x += param.columnWidth + param.columnSpacing;
115			c2d.lineTo (x - param.columnSpacing, param.columnTop);
116			if (c) {
117			c2d.strokeStyle = param.explicitColumnStrokeStyle;
118			} else {
119			c2d.strokeStyle = param.impliedColumnStrokeStyle;
120			}
121			c2d.stroke ();
122			c2d.closePath ();
123			}
124
125	wakaba	1.3	var map = document.createElement ('map');
126	wakaba	1.1	var x = param.cellLeft;
127	wakaba	1.5	for (var i = 0; i < table.cell.length; i++) {
128	wakaba	1.1	var y = param.cellTop;
129			if (!table.cell[i]) continue;
130	wakaba	1.5	for (var j = 0; j < table.cell[i].length; j++) {
131	wakaba	1.1	var c = table.cell[i][j];
132			if (c && ((c[0].x == i && c[0].y == j) \|\| c.length > 1)) {
133			c2d.beginPath ();
134			var width = (param.columnWidth + param.columnSpacing) * c[0].width
135			- param.columnSpacing;
136			var height = (param.rowHeight + param.rowSpacing) * c[0].height
137			- param.rowSpacing;
138			if (c.length == 1) {
139			c2d.rect (x, y, width, height);
140			c2d.fillStyle = c[0].is_header
141			? param.headerCellFillStyle : param.dataCellFillStyle;
142			c2d.strokeStyle = c[0].is_header
143			? param.headerCellStrokeStyle : param.dataCellStrokeStyle;
144	wakaba	1.3	if (c[0].id) {
145			var area = document.createElement ('area');
146			area.shape = 'rect';
147			area.coords = [x, y, x + width, y + height].join (',');
148			area.alt = 'Cell (' + c[0].x + ', ' + c[0].y + ')';
149	wakaba	1.4	area.href = '#' + idPrefix + 'node-' + c[0].id;
150			area.id = idPrefix + 'cell-' + c[0].id;
151	wakaba	1.7	area.onmouseover = (function (v) {
152			return function () {
153			canvas.highlightCells (v);
154			};
155			}) (c[0].header);
156	wakaba	1.3	map.appendChild (area);
157			}
158	wakaba	1.1	} else {
159			c2d.rect (x, y, param.columnWidth, param.rowHeight);
160			c2d.fillStyle = param.overlappingCellFillStyle;
161			c2d.strokeStyle = param.overlappingCellStrokeStyle;
162			}
163			c2d.fill ();
164			c2d.stroke ();
165			c2d.closePath ();
166			}
167			y += param.rowHeight + param.rowSpacing;
168			}
169			x += param.columnWidth + param.columnSpacing;
170			}
171
172			var y = param.rowTop;
173	wakaba	1.5	for (var i = 0; i < rowNumber; i++) {
174	wakaba	1.1	c2d.beginPath ();
175			c2d.moveTo (param.rowLeft, y);
176			y += param.rowHeight + param.rowSpacing;
177			c2d.lineTo (param.rowLeft, y - param.rowSpacing);
178			//if (true) {
179			c2d.strokeStyle = param.explicitRowStrokeStyle;
180			//} else {
181			// c2d.strokeStyle = param.impliedRowStrokeStyle;
182			//}
183			c2d.stroke ();
184			c2d.closePath ();
185			}
186	wakaba	1.3
187	wakaba	1.7	return map;
188			}; // canvas.drawTable
189
190			canvas.highlightCells = function (cells) {
191			var c2d = this.getContext ('2d');
192
193			for (var x in cells) {
194			for (var y in cells[x]) {
195			if (cells[x][y]) {
196			var cell = table.cell[x][y][0];
197			c2d.beginPath ();
198			c2d.rect
199			(param.cellLeft + (param.columnWidth + param.columnSpacing) * x,
200			param.cellTop + (param.rowHeight + param.rowSpacing) * y,
201			(param.columnWidth + param.columnSpacing) * cell.width - param.columnSpacing,
202			(param.rowHeight + param.rowSpacing) * cell.height - param.rowSpacing);
203			c2d.fillStyle = param.highlightCellFillStyle;
204			c2d.fill ();
205			c2d.stroke ();
206			c2d.closePath ();
207			}
208			}
209			}
210			this.updateImgElement ();
211			} // canvas.highlightCells
212
213			var map = canvas.drawTable ();
214	wakaba	1.3	if (map.hasChildNodes ()) {
215	wakaba	1.4	var mapid = /* idPrefix + */ 'table-map-' + ++document.TableMapId;
216	wakaba	1.3	map.name = mapid;
217			parent.appendChild (map);
218			var img = document.createElement ('img');
219			img.useMap = '#' + mapid;
220	wakaba	1.7	canvas.updateImgElement = function () {
221			img.src = this.toDataURL ();
222			};
223			img.onmouseover = function (e) {
224			if (e.target == e.currentTarget) {
225			canvas.drawTable ();
226			canvas.updateImgElement ();
227			}
228			};
229			canvas.updateImgElement ();
230	wakaba	1.3	parent.appendChild (img);
231			canvas.style.display = 'none';
232	wakaba	1.7	} else {
233			canvas.updateImgElement = function () {};
234	wakaba	1.3	}
235	wakaba	1.1	} // tableToCanvas
236
237	wakaba	1.3	if (!document.TableMapId) document.TableMapId = 0;
238
239	wakaba	1.1	/*
240
241	wakaba	1.4	Copyright 2007-2008 Wakaba <w@suika.fam.cx>
242	wakaba	1.1
243			This library is free software; you can redistribute it
244			and/or modify it under the same terms as Perl itself.
245
246			*/
247	wakaba	1.7	/* $Date: 2008/05/05 06:56:01 $ */