move labeling to separate package
This commit is contained in:
Hannes Janetzek
parent
dae42f0c97
commit
9d82cfdd64
75
src/org/oscim/layers/labeling/Debug.java
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75
src/org/oscim/layers/labeling/Debug.java
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@ -0,0 +1,75 @@
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/*
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* Copyright 2013
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*
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* This program is free software: you can redistribute it and/or modify it under the
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* terms of the GNU Lesser General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.oscim.layers.labeling;
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import org.oscim.graphics.Color;
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import org.oscim.renderer.sublayers.Layers;
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import org.oscim.renderer.sublayers.LineLayer;
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import org.oscim.renderer.sublayers.TextItem;
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import org.oscim.theme.renderinstruction.Line;
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public class Debug {
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private final static float[] mDebugPoints = new float[4];
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static void addDebugBox(Layers dbg, Label l, TextItem ti, int overlaps, boolean prev,
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float scale) {
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LineLayer ll;
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if (prev) {
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if (overlaps == 1)
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ll = dbg.getLineLayer(4);
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else
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ll = dbg.getLineLayer(5);
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} else {
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if (ti.width > ti.length * scale) {
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ll = dbg.getLineLayer(1);
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overlaps = 3;
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}
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else if (overlaps == 1)
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ll = dbg.getLineLayer(0);
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else if (overlaps == 2)
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ll = dbg.getLineLayer(3);
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else
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ll = dbg.getLineLayer(2);
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}
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float[] points = mDebugPoints;
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float width = (ti.x2 - ti.x1) / 2f;
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float height = (ti.y2 - ti.y1) / 2f;
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points[0] = (l.x - width * scale);
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points[1] = (l.y - height * scale);
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points[2] = (l.x + width * scale);
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points[3] = (l.y + height * scale);
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ll.addLine(points, null, false);
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if (l.bbox != null && overlaps != 3) {
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ll.addLine(l.bbox.corner, null, true);
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}
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}
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static void addDebugLayers(Layers dbg) {
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int alpha = 0xaaffffff;
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dbg.clear();
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dbg.addLineLayer(0, new Line((Color.BLUE & alpha), 2));
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dbg.addLineLayer(1, new Line((Color.RED & alpha), 2));
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dbg.addLineLayer(3, new Line((Color.YELLOW & alpha), 2));
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dbg.addLineLayer(2, new Line((Color.GREEN & alpha), 2));
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dbg.addLineLayer(4, new Line((Color.CYAN & alpha), 2));
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dbg.addLineLayer(5, new Line((Color.MAGENTA & alpha), 2));
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}
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}
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60
src/org/oscim/layers/labeling/Label.java
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60
src/org/oscim/layers/labeling/Label.java
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@ -0,0 +1,60 @@
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/*
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* Copyright 2013 Hannes Janetzek
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*
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* This program is free software: you can redistribute it and/or modify it under the
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* terms of the GNU Lesser General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.oscim.layers.labeling;
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import org.oscim.layers.tile.MapTile;
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import org.oscim.renderer.sublayers.TextItem;
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import org.oscim.utils.OBB2D;
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class Label extends TextItem {
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TextItem item;
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//Link blocking;
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//Link blockedBy;
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// shared list of all label for a tile
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//Link siblings;
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MapTile tile;
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//public byte origin;
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public int active;
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public OBB2D bbox;
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public TextItem move(TextItem ti, float dx, float dy, float scale) {
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this.x = (dx + ti.x) * scale;
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this.y = (dy + ti.y) * scale;
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return this;
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}
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public void clone(TextItem ti) {
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this.string = ti.string;
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this.text = ti.text;
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this.width = ti.width;
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this.length = ti.length;
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}
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public void setAxisAlignedBBox() {
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this.x1 = x - width / 2;
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this.y1 = y - text.fontHeight / 2;
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this.x2 = x + width / 2;
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this.y2 = y + text.fontHeight / 2;
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}
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static int comparePriority(Label l1, Label l2){
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return 0;
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}
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}
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@ -12,25 +12,24 @@
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* You should have received a copy of the GNU Lesser General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.oscim.layers.overlay;
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package org.oscim.layers.labeling;
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import org.oscim.core.MapPosition;
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import org.oscim.layers.InputLayer;
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import org.oscim.layers.tile.TileRenderLayer;
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import org.oscim.renderer.layers.TextRenderLayer;
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import org.oscim.view.MapView;
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import android.util.Log;
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import android.view.MotionEvent;
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/**
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* @author Hannes Janetzek
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*/
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public class LabelingOverlay extends Overlay {
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private final static String TAG = LabelingOverlay.class.getName();
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public class LabelLayer extends InputLayer {
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private final static String TAG = LabelLayer.class.getName();
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final TextRenderLayer mTextLayer;
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public LabelingOverlay(MapView mapView, TileRenderLayer tileRenderLayer) {
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public LabelLayer(MapView mapView, TileRenderLayer tileRenderLayer) {
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super(mapView);
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//mTextLayer = new org.oscim.renderer.layers.TextRenderLayer(mapView, tileRenderLayer);
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mTextLayer = new TextRenderLayer(mapView, tileRenderLayer);
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mLayer = mTextLayer;
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}
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698
src/org/oscim/layers/labeling/TextRenderLayer.java
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698
src/org/oscim/layers/labeling/TextRenderLayer.java
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@ -0,0 +1,698 @@
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/*
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* Copyright 2012 Hannes Janetzek
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*
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* This program is free software: you can redistribute it and/or modify it under the
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* terms of the GNU Lesser General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.oscim.layers.labeling;
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// TODO
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// 1. rewrite :)
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// 1.1 test if label is actually visible
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// 2. compare previous to current state
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// 2.1 test for new labels to be placed
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// 2.2 handle collisions
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// 2.3 try to place labels along a way
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// 2.4 use 4 point labeling
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// 3 join segments that belong to one feature
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// 4 handle zoom-level changes
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// 5 R-Tree might be handy
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//
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import org.oscim.core.MapPosition;
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import org.oscim.core.Tile;
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import org.oscim.layers.tile.MapTile;
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import org.oscim.layers.tile.TileRenderLayer;
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import org.oscim.layers.tile.TileSet;
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import org.oscim.renderer.GLRenderer.Matrices;
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import org.oscim.renderer.GLState;
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import org.oscim.renderer.layers.BasicRenderLayer;
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import org.oscim.renderer.sublayers.Layer;
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import org.oscim.renderer.sublayers.Layers;
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import org.oscim.renderer.sublayers.LineRenderer;
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import org.oscim.renderer.sublayers.PolygonRenderer;
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import org.oscim.renderer.sublayers.TextItem;
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import org.oscim.renderer.sublayers.TextLayer;
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import org.oscim.renderer.sublayers.TextureRenderer;
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import org.oscim.utils.FastMath;
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import org.oscim.utils.OBB2D;
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import org.oscim.utils.pool.LList;
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import org.oscim.utils.pool.Pool;
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import org.oscim.view.MapView;
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import org.oscim.view.MapViewPosition;
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import android.opengl.GLES20;
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import android.os.AsyncTask;
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import android.os.Handler;
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import android.os.Looper;
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public class TextRenderLayer extends BasicRenderLayer {
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private final static String TAG = TextRenderLayer.class.getName();
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private final static float MIN_CAPTION_DIST = 5;
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private final static float MIN_WAY_DIST = 3;
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private final static long MAX_RELABEL_DELAY = 200;
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private final MapViewPosition mMapViewPosition;
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private final TileSet mTileSet;
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private MapPosition mTmpPos;
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// TextLayer that is updating
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private TextLayer mTmpLayer;
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// TextLayer that is ready to be added to 'layers'
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private TextLayer mNextLayer;
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// thread local pool
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class LabelPool extends Pool<TextItem> {
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Label releaseAndGetNext(Label l) {
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if (l.item != null)
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TextItem.pool.release(l.item);
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// drop references
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l.item = null;
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l.tile = null;
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l.string = null;
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Label ret = (Label) l.next;
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super.release(l);
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return ret;
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}
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@Override
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protected TextItem createItem() {
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return new Label();
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}
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}
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private final LabelPool mPool = new LabelPool();
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// list of previous labels
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private Label mPrevLabels;
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// list of current labels
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private Label mLabels;
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//private final float[] mTmpCoords = new float[8];
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//private final HashMap<MapTile, LabelTile> mActiveTiles;
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class LabelTile {
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Tile tile;
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LList<Label> labels;
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}
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// class ActiveTile {
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// MapTile tile;
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// int activeLabels;
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// Label labels;
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// }
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private float mSquareRadius;
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private int mRelabelCnt;
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private final TileRenderLayer mTileLayer;
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public TextRenderLayer(MapView mapView, TileRenderLayer baseLayer) {
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super(mapView);
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mMapViewPosition = mapView.getMapViewPosition();
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mTileLayer = baseLayer;
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mTileSet = new TileSet();
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layers.textureLayers = new TextLayer();
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mTmpLayer = new TextLayer();
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//mActiveTiles = new HashMap<MapTile, LabelTile>();
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mTmpPos = new MapPosition();
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mRelabelCnt = 0;
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}
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// remove Label l from mLabels and return l.next
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private Label removeLabel(Label l) {
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Label ret = (Label) l.next;
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mLabels = (Label) mPool.release(mLabels, l);
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return ret;
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}
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public void addLabel(Label l) {
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TextItem ll = mLabels;
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for (; ll != null; ll = ll.next) {
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// find other label with same text style
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if (l.text == ll.text) {
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while (ll.next != null
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// break if next item uses different text style
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&& l.text == ll.next.text
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// check same string instance
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&& l.string != ll.string
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// check same string
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&& !l.string.equals(ll.string))
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ll = ll.next;
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// Note: this is required for 'packing test' in prepare to work!
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TextItem.shareText(l, ll);
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// insert after text of same type and/or before same string
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l.next = ll.next;
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ll.next = l;
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return;
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}
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}
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l.next = mLabels;
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mLabels = l;
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}
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private byte checkOverlap(Label l) {
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for (Label ll = mLabels; ll != null;) {
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// check bounding box
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if (!TextItem.bboxOverlaps(l, ll, 150)) {
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ll = (Label) ll.next;
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continue;
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}
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if (TextItem.shareText(l, ll)) {
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// keep the label that was active earlier
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if (ll.active <= l.active)
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return 1;
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// keep the label with longer segment
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if (ll.length < l.length) {
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ll = removeLabel(ll);
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continue;
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}
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return 2;
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}
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boolean intersect = l.bbox.overlaps(ll.bbox);
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if (intersect) {
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if (ll.active <= l.active)
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return 1;
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//Log.d(TAG, "intersection " + lp.string + " <> " + ti.string
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// + " at " + ti.x + ":" + ti.y);
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if (!ll.text.caption
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&& (ll.text.priority > l.text.priority || ll.length < l.length)) {
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ll = removeLabel(ll);
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continue;
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}
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return 1;
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}
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ll = (Label) ll.next;
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}
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return 0;
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}
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private boolean nodeIsVisible(TextItem ti) {
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// rough filter
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float dist = ti.x * ti.x + ti.y * ti.y;
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if (dist > mSquareRadius)
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return false;
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return true;
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}
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private boolean wayIsVisible(TextItem ti) {
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// rough filter
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float dist = ti.x * ti.x + ti.y * ti.y;
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if (dist < mSquareRadius)
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return true;
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dist = ti.x1 * ti.x1 + ti.y1 * ti.y1;
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if (dist < mSquareRadius)
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return true;
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dist = ti.x2 * ti.x2 + ti.y2 * ti.y2;
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if (dist < mSquareRadius)
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return true;
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return false;
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}
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private Layers mDebugLayer;
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private Label getLabel() {
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Label l = (Label) mPool.get();
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l.active = Integer.MAX_VALUE;
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return l;
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}
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private static float flipLongitude(float dx, int max) {
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// flip around date-line
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if (dx > max)
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dx = dx - max * 2;
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else if (dx < -max)
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dx = dx + max * 2;
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return dx;
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}
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boolean updateLabels() {
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// nextLayer is not loaded yet
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if (mTmpLayer == null)
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return false;
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// get current tiles
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boolean changedTiles = mTileLayer.getVisibleTiles(mTileSet);
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boolean changedPos;
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if (mTileSet.cnt == 0) {
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//Log.d(TAG, "no tiles "+ mTileSet.getSerial());
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return false;
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}
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MapPosition pos = mTmpPos;
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synchronized (mMapViewPosition) {
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changedPos = mMapViewPosition.getMapPosition(pos);
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//mMapViewPosition.getMapViewProjection(coords);
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}
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if (!changedTiles && !changedPos) {
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//Log.d(TAG, "not changed " + changedTiles + " " + changedPos);
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return false;
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}
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Layers dbg = null;
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if (mMapView.getDebugSettings().debugLabels)
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dbg = new Layers();
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int mw = (mMapView.getWidth() + Tile.SIZE) / 2;
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int mh = (mMapView.getHeight() + Tile.SIZE) / 2;
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mSquareRadius = mw * mw + mh * mh;
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MapTile[] tiles = mTileSet.tiles;
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int zoom = tiles[0].zoomLevel;
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// scale of tiles zoom-level relative to current position
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double scale = pos.scale / (1 << zoom);
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double angle = Math.toRadians(pos.angle);
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float cos = (float) Math.cos(angle);
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float sin = (float) Math.sin(angle);
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int maxx = Tile.SIZE << (zoom - 1);
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if (dbg != null)
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Debug.addDebugLayers(dbg);
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mRelabelCnt++;
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double tileX = (pos.x * (Tile.SIZE << zoom));
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double tileY = (pos.y * (Tile.SIZE << zoom));
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for (Label l = mPrevLabels; l != null;) {
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if (l.text.caption) {
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l = mPool.releaseAndGetNext(l);
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continue;
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}
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int diff = l.tile.zoomLevel - zoom;
|
||||
if (diff > 1 || diff < -1) {
|
||||
l = mPool.releaseAndGetNext(l);
|
||||
continue;
|
||||
}
|
||||
|
||||
float div = FastMath.pow(diff);
|
||||
float sscale = (float) (pos.scale / (1 << l.tile.zoomLevel));
|
||||
|
||||
if (l.width > l.length * sscale) {
|
||||
l = mPool.releaseAndGetNext(l);
|
||||
continue;
|
||||
}
|
||||
|
||||
float dx = (float) (l.tile.tileX * Tile.SIZE - tileX * div);
|
||||
float dy = (float) (l.tile.tileY * Tile.SIZE - tileY * div);
|
||||
|
||||
dx = flipLongitude(dx, maxx);
|
||||
|
||||
l.move(l.item, dx, dy, sscale);
|
||||
|
||||
// set line endpoints relative to view to be able to
|
||||
// check intersections with label from other tiles
|
||||
float w = (l.item.x2 - l.item.x1) / 2f;
|
||||
float h = (l.item.y2 - l.item.y1) / 2f;
|
||||
l.x1 = l.x - w;
|
||||
l.y1 = l.y - h;
|
||||
l.x2 = l.x + w;
|
||||
l.y2 = l.y + h;
|
||||
|
||||
if (!wayIsVisible(l)) {
|
||||
l = mPool.releaseAndGetNext(l);
|
||||
continue;
|
||||
}
|
||||
|
||||
l.bbox.set(l.x, l.y, l.x1, l.y1,
|
||||
l.width + MIN_WAY_DIST,
|
||||
l.text.fontHeight + MIN_WAY_DIST);
|
||||
|
||||
byte overlaps = checkOverlap(l);
|
||||
|
||||
if (dbg != null)
|
||||
Debug.addDebugBox(dbg, l, l.item, overlaps, true, sscale);
|
||||
|
||||
if (overlaps == 0) {
|
||||
Label ll = l;
|
||||
l = (Label) l.next;
|
||||
|
||||
ll.next = null;
|
||||
addLabel(ll);
|
||||
continue;
|
||||
}
|
||||
l = mPool.releaseAndGetNext(l);
|
||||
}
|
||||
|
||||
Label l = null;
|
||||
|
||||
/* add way labels */
|
||||
for (int i = 0, n = mTileSet.cnt; i < n; i++) {
|
||||
MapTile t = tiles[i];
|
||||
if (t.state != MapTile.STATE_READY)
|
||||
continue;
|
||||
|
||||
float dx = (float) (t.tileX * Tile.SIZE - tileX);
|
||||
float dy = (float) (t.tileY * Tile.SIZE - tileY);
|
||||
dx = flipLongitude(dx, maxx);
|
||||
|
||||
for (TextItem ti = t.labels; ti != null; ti = ti.next) {
|
||||
|
||||
if (ti.text.caption)
|
||||
continue;
|
||||
|
||||
// acquire a TextItem to add to TextLayer
|
||||
if (l == null)
|
||||
l = getLabel();
|
||||
|
||||
// check if path at current scale is long enough for text
|
||||
if (dbg == null && ti.width > ti.length * scale)
|
||||
continue;
|
||||
|
||||
l.clone(ti);
|
||||
l.move(ti, dx, dy, (float) scale);
|
||||
|
||||
// set line endpoints relative to view to be able to
|
||||
// check intersections with label from other tiles
|
||||
float w = (ti.x2 - ti.x1) / 2f;
|
||||
float h = (ti.y2 - ti.y1) / 2f;
|
||||
l.bbox = null;
|
||||
l.x1 = l.x - w;
|
||||
l.y1 = l.y - h;
|
||||
l.x2 = l.x + w;
|
||||
l.y2 = l.y + h;
|
||||
|
||||
if (!wayIsVisible(l))
|
||||
continue;
|
||||
|
||||
byte overlaps = -1;
|
||||
|
||||
if (l.bbox == null)
|
||||
l.bbox = new OBB2D(l.x, l.y, l.x1, l.y1,
|
||||
l.width + MIN_WAY_DIST,
|
||||
l.text.fontHeight + MIN_WAY_DIST);
|
||||
else
|
||||
l.bbox.set(l.x, l.y, l.x1, l.y1,
|
||||
l.width + MIN_WAY_DIST,
|
||||
l.text.fontHeight + MIN_WAY_DIST);
|
||||
|
||||
if (dbg == null || ti.width < ti.length * scale)
|
||||
overlaps = checkOverlap(l);
|
||||
|
||||
if (dbg != null)
|
||||
Debug.addDebugBox(dbg, l, ti, overlaps, false, (float) scale);
|
||||
|
||||
if (overlaps == 0) {
|
||||
addLabel(l);
|
||||
l.item = TextItem.copy(ti);
|
||||
l.tile = t;
|
||||
l.active = mRelabelCnt;
|
||||
l = null;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* add caption */
|
||||
for (int i = 0, n = mTileSet.cnt; i < n; i++) {
|
||||
MapTile t = tiles[i];
|
||||
if (t.state != MapTile.STATE_READY)
|
||||
continue;
|
||||
|
||||
float dx = (float) (t.tileX * Tile.SIZE - tileX);
|
||||
float dy = (float) (t.tileY * Tile.SIZE - tileY);
|
||||
dx = flipLongitude(dx, maxx);
|
||||
|
||||
for (TextItem ti = t.labels; ti != null; ti = ti.next) {
|
||||
if (!ti.text.caption)
|
||||
continue;
|
||||
|
||||
// acquire a TextItem to add to TextLayer
|
||||
if (l == null)
|
||||
l = getLabel();
|
||||
|
||||
l.clone(ti);
|
||||
l.move(ti, dx, dy, (float) scale);
|
||||
if (!nodeIsVisible(l))
|
||||
continue;
|
||||
|
||||
//l.setAxisAlignedBBox();
|
||||
|
||||
if (l.bbox == null)
|
||||
l.bbox = new OBB2D();
|
||||
|
||||
l.bbox.setNormalized(l.x, l.y, cos, -sin,
|
||||
l.width + MIN_CAPTION_DIST,
|
||||
l.text.fontHeight + MIN_CAPTION_DIST);
|
||||
|
||||
boolean overlaps = false;
|
||||
|
||||
for (Label lp = mLabels; lp != null;) {
|
||||
if (l.bbox.overlaps(lp.bbox)) {
|
||||
if (l.text.priority < lp.text.priority) {
|
||||
lp = removeLabel(lp);
|
||||
continue;
|
||||
}
|
||||
|
||||
overlaps = true;
|
||||
break;
|
||||
}
|
||||
lp = (Label) lp.next;
|
||||
}
|
||||
if (!overlaps) {
|
||||
addLabel(l);
|
||||
l.item = TextItem.copy(ti);
|
||||
l.tile = t;
|
||||
l.active = mRelabelCnt;
|
||||
l = null;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (Label ti = mLabels; ti != null; ti = (Label) ti.next) {
|
||||
if (ti.text.caption)
|
||||
continue;
|
||||
|
||||
// flip label upside-down
|
||||
if (cos * (ti.x2 - ti.x1) - sin * (ti.y2 - ti.y1) < 0) {
|
||||
float tmp = ti.x1;
|
||||
ti.x1 = ti.x2;
|
||||
ti.x2 = tmp;
|
||||
|
||||
tmp = ti.y1;
|
||||
ti.y1 = ti.y2;
|
||||
ti.y2 = tmp;
|
||||
}
|
||||
}
|
||||
|
||||
// temporarily used Label
|
||||
mPool.release(l);
|
||||
|
||||
//reuse text layer
|
||||
TextLayer tl = mTmpLayer;
|
||||
mTmpLayer = null;
|
||||
|
||||
tl.labels = mLabels;
|
||||
// draw text to bitmaps and create vertices
|
||||
tl.prepare();
|
||||
|
||||
// after 'prepare' TextLayer does not need TextItems
|
||||
mPrevLabels = mLabels;
|
||||
mLabels = null;
|
||||
tl.labels = null;
|
||||
|
||||
// remove tile locks
|
||||
mTileLayer.releaseTiles(mTileSet);
|
||||
|
||||
// pass new labels for rendering
|
||||
//synchronized (this) {
|
||||
mNextLayer = tl;
|
||||
mDebugLayer = dbg;
|
||||
//}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
@Override
|
||||
public synchronized void update(MapPosition pos, boolean changed,
|
||||
Matrices matrices) {
|
||||
|
||||
if (mNextLayer != null) {
|
||||
// keep text layer, not recrating its canvas each time
|
||||
mTmpLayer = (TextLayer) layers.textureLayers;
|
||||
|
||||
// clear textures and text items from previous layer
|
||||
layers.clear();
|
||||
|
||||
if (mDebugLayer != null) {
|
||||
layers.baseLayers = mDebugLayer.baseLayers;
|
||||
mDebugLayer = null;
|
||||
}
|
||||
|
||||
// set new TextLayer to be uploaded and rendered
|
||||
layers.textureLayers = mNextLayer;
|
||||
mNextLayer = null;
|
||||
|
||||
// make the 'labeled' MapPosition current
|
||||
MapPosition tmp = mMapPosition;
|
||||
mMapPosition = mTmpPos;
|
||||
mTmpPos = tmp;
|
||||
|
||||
this.newData = true;
|
||||
}
|
||||
|
||||
if (!mHolding)
|
||||
postLabelTask((mLastRun + MAX_RELABEL_DELAY) - System.currentTimeMillis());
|
||||
}
|
||||
|
||||
/* private */LabelTask mLabelTask;
|
||||
/* private */long mLastRun;
|
||||
|
||||
class LabelTask extends AsyncTask<Void, Void, Integer> {
|
||||
|
||||
@Override
|
||||
protected Integer doInBackground(Void... unused) {
|
||||
boolean labelsChanged = false;
|
||||
|
||||
if (!isCancelled())
|
||||
labelsChanged = updateLabels();
|
||||
|
||||
if (!isCancelled() && labelsChanged)
|
||||
mMapView.render();
|
||||
|
||||
//Log.d(TAG, "relabel " + labelsChanged);
|
||||
|
||||
mLastRun = System.currentTimeMillis();
|
||||
mLabelTask = null;
|
||||
return null;
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void onCancelled() {
|
||||
cleanup();
|
||||
}
|
||||
}
|
||||
|
||||
/*private */void cleanup() {
|
||||
mPool.releaseAll(mPrevLabels);
|
||||
mPrevLabels = null;
|
||||
mTileSet.clear();
|
||||
mLabelTask = null;
|
||||
}
|
||||
|
||||
private final Runnable mLabelUpdate = new Runnable() {
|
||||
@Override
|
||||
public void run() {
|
||||
|
||||
if (mLabelTask == null) {
|
||||
mLabelTask = new LabelTask();
|
||||
mLabelTask.execute();
|
||||
} else {
|
||||
postLabelTask(50);
|
||||
//Log.d(TAG, "repost");
|
||||
}
|
||||
}
|
||||
};
|
||||
private Handler mLabelHandler;
|
||||
|
||||
/* private */void postLabelTask(long delay) {
|
||||
if (mLabelHandler == null) {
|
||||
mLabelHandler = new Handler(Looper.getMainLooper());
|
||||
}
|
||||
|
||||
mLabelHandler.removeCallbacks(mLabelUpdate);
|
||||
|
||||
if (delay > 0)
|
||||
mLabelHandler.postDelayed(mLabelUpdate, delay);
|
||||
else
|
||||
mLabelHandler.post(mLabelUpdate);
|
||||
}
|
||||
|
||||
@Override
|
||||
public synchronized void render(MapPosition pos, Matrices m) {
|
||||
|
||||
GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, layers.vbo.id);
|
||||
GLState.test(false, false);
|
||||
|
||||
float scale = (float) (mMapPosition.scale / pos.scale);
|
||||
|
||||
if (layers.baseLayers != null) {
|
||||
setMatrix(pos, m, true);
|
||||
|
||||
for (Layer l = layers.baseLayers; l != null;) {
|
||||
if (l.type == Layer.POLYGON) {
|
||||
l = PolygonRenderer.draw(pos, l, m, true, false);
|
||||
} else {
|
||||
float div = scale * (float) (pos.scale / (1 << pos.zoomLevel));
|
||||
l = LineRenderer.draw(layers, l, pos, m, div, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
setMatrix(pos, m, false);
|
||||
|
||||
for (Layer l = layers.textureLayers; l != null;)
|
||||
l = TextureRenderer.draw(l, scale, m);
|
||||
}
|
||||
|
||||
private boolean mHolding;
|
||||
|
||||
/**
|
||||
* @param enable layer updates
|
||||
*/
|
||||
public synchronized void hold(boolean enable) {
|
||||
// mHolding = enable;
|
||||
// if (!enable)
|
||||
// runLabelTask();
|
||||
}
|
||||
|
||||
public synchronized void clearLabels() {
|
||||
if (mLabelHandler != null)
|
||||
mLabelHandler.removeCallbacks(mLabelUpdate);
|
||||
|
||||
if (mLabelTask == null) {
|
||||
cleanup();
|
||||
} else {
|
||||
mLabelTask.cancel(false);
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user