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Accept custom isLoaded method in findLoadedTiles method

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This commit is contained in:
Tim Schaub
2013-02-19 12:13:58 -07:00
parent 1b984ac06c
commit 80dc7b5bf7
5 changed files with 33 additions and 19 deletions
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10
src/ol/source/tilesource.js
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@@ -8,7 +8,6 @@ goog.require('ol.Projection');
goog.require('ol.Tile');
goog.require('ol.TileCoord');
goog.require('ol.TileRange');
goog.require('ol.TileState');
goog.require('ol.source.Source');
goog.require('ol.tilegrid.TileGrid');
@@ -66,16 +65,17 @@ ol.source.TileSource.prototype.expireCache = goog.abstractMethod;
*
* @param {Object.<number, Object.<string, ol.Tile>>} loadedTilesByZ A lookup of
* loaded tiles by zoom level.
* @param {function(ol.Tile): boolean} isLoaded A function to determine if a
* tile is fully loaded.
* @param {number} z Zoom level.
* @param {ol.TileRange} tileRange Tile range.
* @return {boolean} The tile range is fully covered with loaded tiles.
*/
ol.source.TileSource.prototype.findLoadedTiles = function(loadedTilesByZ, z,
tileRange) {
ol.source.TileSource.prototype.findLoadedTiles = function(loadedTilesByZ,
isLoaded, z, tileRange) {
// FIXME this could be more efficient about filling partial holes
var fullyCovered = true;
var tile, tileCoord, tileCoordKey, x, y;
// TODO: tile range is misunderstood (inclusive or not?)
for (x = tileRange.minX; x <= tileRange.maxX; ++x) {
for (y = tileRange.minY; y <= tileRange.maxY; ++y) {
tileCoord = new ol.TileCoord(z, x, y);
@@ -84,7 +84,7 @@ ol.source.TileSource.prototype.findLoadedTiles = function(loadedTilesByZ, z,
continue;
}
tile = this.getTile(tileCoord);
if (!goog.isNull(tile) && tile.getState() == ol.TileState.LOADED) {
if (isLoaded(tile)) {
if (!loadedTilesByZ[z]) {
loadedTilesByZ[z] = {};
}