/**
* Method used to draw a line on map.
*
* @param advancedStyle
* @param currentZoomLevel the current zoom level of the map view
*/
public void drawLines(AdvancedStyle advancedStyle, byte currentZoomLevel) {
Paint stroke = StyleManager.getStrokePaint4Style(advancedStyle);
Paint textStroke = StyleManager.getTextStrokePaint4Style(advancedStyle);
ShapeWriter wr = new ShapeWriter(pointTransformer);
wr.setRemoveDuplicatePoints(true);
wr.setDecimation(style4Table.decimationFactor);
if (stroke == null && textStroke == null) {
// Can't draw
return;
}
while (geometryIterator.hasNext()) {
Geometry geom = geometryIterator.next();
DrawableShape shape = wr.toShape(geom);
if (stroke != null) {
shape.draw(canvas, stroke);
}
// draw labels if zoom level fits and data is available
if (currentZoomLevel >= advancedStyle.label_minZoom
&& textStroke != null
&& shape instanceof PathShape
&& geom.getUserData() != null) {
Object userData = geom.getUserData();
canvas.drawTextOnPath(
userData.toString(),
((PathShape) shape).getPath(),
LABEL_H_OFFSET,
LABEL_V_OFFSET,
textStroke);
}
}
}
/**
* method used to draw a polygon on map
*
* @param advancedStyle
*/
public void drawPolygons(AdvancedStyle advancedStyle) {
Paint stroke = StyleManager.getStrokePaint4Style(advancedStyle);
Paint fill = StyleManager.getFillPaint4Style(advancedStyle);
if (stroke == null && fill == null) {
// Can't draw
return;
}
ShapeWriter wr = new ShapeWriter(pointTransformer);
wr.setRemoveDuplicatePoints(true);
wr.setDecimation(style4Table.decimationFactor);
while (geometryIterator.hasNext()) {
Geometry geom = geometryIterator.next();
if (geom != null) {
DrawableShape shape = wr.toShape(geom);
if (fill != null) {
shape.fill(canvas, fill);
}
if (stroke != null) {
shape.draw(canvas, stroke);
}
}
}
}
@Override
protected AdvancedStyle getStyle() {
if (style != null) {
return style;
}
Bundle extras = getIntent().getExtras();
String tableName = extras.getString(SpatialiteLibraryConstants.PREFS_KEY_TEXT);
try {
spatialTable = SpatialDataSourceManager.getInstance().getVectorTableByName(tableName);
} catch (Exception e) {
Log.e("STYLE", "unable to retrive table" + tableName);
}
style = StyleManager.getInstance().getStyle(spatialTable.getName());
return style;
}
/**
* Initializes the database
*
* @return true if the initialization was successful
*/
private boolean initDb() {
// init styleManager
StyleManager.getInstance().init(this, MAP_DIR);
// init Db
SpatialDataSourceManager dbManager = SpatialDataSourceManager.getInstance();
try {
// Only if not already loaded some tables
if (dbManager.getSpatialVectorTables(false).size() <= 0) {
dbManager.init(MAP_DIR);
}
} catch (Exception e) {
return false;
}
return true;
}