This is an automated email from the ASF dual-hosted git repository.
jsorel pushed a commit to branch geoapi-4.0
in repository https://gitbox.apache.org/repos/asf/sis.git
The following commit(s) were added to refs/heads/geoapi-4.0 by this push:
new f11bfb49ed feat(Map): add a first template of Map portrayer
f11bfb49ed is described below
commit f11bfb49ed2b0757eec07db73f4d35d2919ad00d
Author: jsorel <[email protected]>
AuthorDate: Thu Jan 25 17:13:44 2024 +0100
feat(Map): add a first template of Map portrayer
---
.../sis/map/service/LineSymbolizerPainter.java | 39 ++++++
.../org/apache/sis/map/service/MapPortrayer.java | 148 +++++++++++++++++++++
.../sis/map/service/PointSymbolizerPainter.java | 39 ++++++
.../sis/map/service/PolygonSymbolizerPainter.java | 39 ++++++
.../apache/sis/map/service/PortrayalException.java | 25 ++++
.../sis/map/service/RasterSymbolizerPainter.java | 39 ++++++
.../main/org/apache/sis/map/service/SEPainter.java | 113 ++++++++++++++++
.../org/apache/sis/map/service/StylePainter.java | 35 +++++
.../apache/sis/map/service/SymbolizerPainter.java | 38 ++++++
.../map/service/SymbolizerPainterDescription.java | 43 ++++++
.../sis/map/service/TextSymbolizerPainter.java | 39 ++++++
11 files changed, 597 insertions(+)
diff --git
a/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/LineSymbolizerPainter.java
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/LineSymbolizerPainter.java
new file mode 100644
index 0000000000..d5aa93c596
--- /dev/null
+++
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/LineSymbolizerPainter.java
@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sis.map.service;
+
+import java.awt.Graphics2D;
+import org.apache.sis.coverage.grid.GridGeometry;
+import org.apache.sis.map.MapLayer;
+import org.apache.sis.style.se1.Symbolizer;
+
+/**
+ *
+ * @author Johann Sorel (Geomatys)
+ */
+final class LineSymbolizerPainter extends SymbolizerPainter {
+
+ public LineSymbolizerPainter(Symbolizer<?> symbolizer) {
+ super(symbolizer);
+ }
+
+ @Override
+ public void paint(Graphics2D g, GridGeometry gridGeometry, MapLayer layer)
{
+ throw new UnsupportedOperationException("Not supported yet.");
+ }
+
+}
diff --git
a/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/MapPortrayer.java
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/MapPortrayer.java
new file mode 100644
index 0000000000..9555b133e4
--- /dev/null
+++
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/MapPortrayer.java
@@ -0,0 +1,148 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sis.map.service;
+
+import java.awt.Graphics2D;
+import java.awt.RenderingHints;
+import java.awt.image.BufferedImage;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.ServiceLoader;
+import org.apache.sis.coverage.grid.GridExtent;
+import org.apache.sis.coverage.grid.GridGeometry;
+import org.apache.sis.coverage.grid.GridOrientation;
+import org.apache.sis.map.MapItem;
+import org.apache.sis.map.MapLayer;
+import org.apache.sis.map.MapLayers;
+import org.apache.sis.referencing.CRS;
+import org.apache.sis.referencing.CommonCRS;
+import org.apache.sis.style.Style;
+import org.apache.sis.util.ArgumentChecks;
+
+/**
+ * Draft.
+ * Class used to render a map using Java2D API.
+ *
+ * @author Johann Sorel (Geomatys)
+ */
+public final class MapPortrayer {
+
+ /**
+ * Reference all painters.
+ */
+ private static final Map<Class<? extends Style>,StylePainter> PAINTERS =
new HashMap<>();
+
+ private GridGeometry grid = new GridGeometry(new GridExtent(360, 180),
CRS.getDomainOfValidity(CommonCRS.WGS84.normalizedGeographic()),
GridOrientation.REFLECTION_Y);
+ private BufferedImage image = new
BufferedImage((int)grid.getExtent().getSize(0),
(int)grid.getExtent().getSize(0), BufferedImage.TYPE_INT_ARGB);
+ private Graphics2D graphics = image.createGraphics();
+ private boolean valid = false;
+
+ static {
+ final ServiceLoader<StylePainter> loader =
ServiceLoader.load(StylePainter.class, StylePainter.class.getClassLoader());
+ for (StylePainter painter : loader) {
+ PAINTERS.put(painter.getStyleClass(), painter);
+ }
+ }
+
+ public MapPortrayer() {
+ }
+
+ /**
+ * Update canvas.
+ *
+ * @param image image to write into, if null the graphics must be defined
+ * @param graphics graphics to paint into, if null the image must be
defined
+ */
+ public synchronized void setCanvas(BufferedImage image, Graphics2D
graphics) {
+ this.image = image;
+ if (graphics == null) {
+ graphics = image.createGraphics();
+ graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
+ }
+ this.graphics = graphics;
+ valid = false;
+ }
+
+ /**
+ * Update canvas area.
+ *
+ * @param grid GridGeometry of the rendered area
+ */
+ public synchronized void setGridGeometry(GridGeometry grid) {
+ ArgumentChecks.ensureNonNull("grid", grid);
+ this.grid = grid;
+ valid = false;
+ }
+
+ /**
+ * @return currently used Graphics2D, can be null
+ */
+ public synchronized Graphics2D getGraphics() {
+ return graphics;
+ }
+
+ /**
+ * @return currently used Image, can be null
+ */
+ public BufferedImage getImage() {
+ return image;
+ }
+
+ /**
+ * Paint given map.
+ *
+ * An image is created if not defined.
+ *
+ * @param map to paint, not null
+ * @throws PortrayalException
+ * @throws IllegalArgumentException if canvas is not property configured
+ */
+ public synchronized void portray(MapItem map) throws PortrayalException {
+
+ if (!valid) {
+ //check canvas configuration
+ if (grid == null) {
+ throw new IllegalArgumentException("Grid geometry has not been
initialize");
+ }
+ if (graphics == null) {
+
+ }
+ valid = true;
+ }
+
+ //render given map
+ if (map == null || !map.isVisible()) return;
+ if (map instanceof MapLayer) {
+ portray((MapLayer) map);
+ } else if (map instanceof MapLayers) {
+ final MapLayers layers = (MapLayers) map;
+ for (MapItem item : layers.getComponents()) {
+ portray(item);
+ }
+ }
+ }
+
+ private void portray(MapLayer layer) throws PortrayalException {
+ final Style style = layer.getStyle();
+ if (style == null) return;
+ final StylePainter painter = PAINTERS.get(style.getClass());
+ if (painter == null) return;
+ painter.paint(graphics, image, grid, layer);
+ }
+
+
+}
diff --git
a/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/PointSymbolizerPainter.java
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/PointSymbolizerPainter.java
new file mode 100644
index 0000000000..081913a433
--- /dev/null
+++
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/PointSymbolizerPainter.java
@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sis.map.service;
+
+import java.awt.Graphics2D;
+import org.apache.sis.coverage.grid.GridGeometry;
+import org.apache.sis.map.MapLayer;
+import org.apache.sis.style.se1.Symbolizer;
+
+/**
+ *
+ * @author Johann Sorel (Geomatys)
+ */
+final class PointSymbolizerPainter extends SymbolizerPainter {
+
+ public PointSymbolizerPainter(Symbolizer<?> symbolizer) {
+ super(symbolizer);
+ }
+
+ @Override
+ public void paint(Graphics2D g, GridGeometry gridGeometry, MapLayer layer)
{
+ throw new UnsupportedOperationException("Not supported yet.");
+ }
+
+}
diff --git
a/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/PolygonSymbolizerPainter.java
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/PolygonSymbolizerPainter.java
new file mode 100644
index 0000000000..4e22be7cba
--- /dev/null
+++
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/PolygonSymbolizerPainter.java
@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sis.map.service;
+
+import java.awt.Graphics2D;
+import org.apache.sis.coverage.grid.GridGeometry;
+import org.apache.sis.map.MapLayer;
+import org.apache.sis.style.se1.Symbolizer;
+
+/**
+ *
+ * @author Johann Sorel (Geomatys)
+ */
+final class PolygonSymbolizerPainter extends SymbolizerPainter {
+
+ public PolygonSymbolizerPainter(Symbolizer<?> symbolizer) {
+ super(symbolizer);
+ }
+
+ @Override
+ public void paint(Graphics2D g, GridGeometry gridGeometry, MapLayer layer)
{
+ throw new UnsupportedOperationException("Not supported yet.");
+ }
+
+}
diff --git
a/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/PortrayalException.java
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/PortrayalException.java
new file mode 100644
index 0000000000..ca6ecd581b
--- /dev/null
+++
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/PortrayalException.java
@@ -0,0 +1,25 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sis.map.service;
+
+/**
+ *
+ * @author Johann Sorel (Geomatys)
+ */
+public class PortrayalException extends Exception {
+
+}
diff --git
a/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/RasterSymbolizerPainter.java
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/RasterSymbolizerPainter.java
new file mode 100644
index 0000000000..28778a405c
--- /dev/null
+++
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/RasterSymbolizerPainter.java
@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sis.map.service;
+
+import java.awt.Graphics2D;
+import org.apache.sis.coverage.grid.GridGeometry;
+import org.apache.sis.map.MapLayer;
+import org.apache.sis.style.se1.Symbolizer;
+
+/**
+ *
+ * @author Johann Sorel (Geomatys)
+ */
+final class RasterSymbolizerPainter extends SymbolizerPainter {
+
+ public RasterSymbolizerPainter(Symbolizer<?> symbolizer) {
+ super(symbolizer);
+ }
+
+ @Override
+ public void paint(Graphics2D g, GridGeometry gridGeometry, MapLayer layer)
{
+ throw new UnsupportedOperationException("Not supported yet.");
+ }
+
+}
diff --git
a/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/SEPainter.java
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/SEPainter.java
new file mode 100644
index 0000000000..f93f9e23a0
--- /dev/null
+++
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/SEPainter.java
@@ -0,0 +1,113 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sis.map.service;
+
+import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.ServiceLoader;
+import java.util.stream.Stream;
+import org.apache.sis.coverage.grid.GridGeometry;
+import org.apache.sis.map.ExceptionPresentation;
+import org.apache.sis.map.MapLayer;
+import org.apache.sis.map.Presentation;
+import org.apache.sis.map.SEPortrayer;
+import org.apache.sis.map.SEPresentation;
+import org.apache.sis.style.Style;
+import org.apache.sis.style.se1.Symbolizer;
+import org.apache.sis.style.se1.Symbology;
+
+/**
+ *
+ * @author Johann Sorel (Geomatys)
+ */
+public final class SEPainter implements StylePainter {
+
+ /**
+ * Reference all painters.
+ */
+ private static final List<SymbolizerPainterDescription<?>> PAINTERS = new
ArrayList<>();
+
+ static {
+ final ServiceLoader<SymbolizerPainterDescription> loader =
ServiceLoader.load(SymbolizerPainterDescription.class,
SymbolizerPainterDescription.class.getClassLoader());
+ for (SymbolizerPainterDescription painter : loader) {
+ PAINTERS.add(painter);
+ }
+ }
+
+ private static final SymbolizerPainter NONE = new SymbolizerPainter(null) {
+ @Override
+ public void paint(Graphics2D g, GridGeometry gridGeometry, MapLayer
layer) {
+ }
+ };
+
+ @Override
+ public Class<? extends Style> getStyleClass() {
+ return Symbology.class;
+ }
+
+ @Override
+ public void paint(Graphics2D g, BufferedImage image, GridGeometry
gridGeometry, MapLayer layer) {
+
+ final Map<Symbolizer, SymbolizerPainter> subPainters = new HashMap<>();
+
+ final SEPortrayer p = new SEPortrayer();
+ try (Stream<Presentation> presentations = p.present(gridGeometry,
layer)) {
+
+ //process presentations in order
+ final Iterator<Presentation> ite = presentations.iterator();
+ while (ite.hasNext()) {
+ final Presentation presentation = ite.next();
+ if (presentation instanceof SEPresentation) {
+ final SEPresentation sepre = (SEPresentation) presentation;
+ final Symbolizer<?> symbolizer = sepre.getSymbolizer();
+ SymbolizerPainter subPainter = subPainters.get(symbolizer);
+
+ creation:
+ if (subPainter == null) {
+ subPainter = NONE;
+ for (SymbolizerPainterDescription s : PAINTERS) {
+ if (s.getSymbolizerClass().isInstance(symbolizer))
{
+ subPainter = s.createRenderer(symbolizer);
+ break;
+ }
+ }
+ subPainters.put(symbolizer, subPainter);
+ }
+
+ if (subPainter == NONE) {
+ continue;
+ }
+
+ subPainter.paint(g, gridGeometry, layer);
+
+ } else if (presentation instanceof ExceptionPresentation) {
+ //todo
+ } else {
+ //todo
+ }
+ }
+
+ }
+
+ }
+
+}
diff --git
a/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/StylePainter.java
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/StylePainter.java
new file mode 100644
index 0000000000..699a110d85
--- /dev/null
+++
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/StylePainter.java
@@ -0,0 +1,35 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sis.map.service;
+
+import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
+import org.apache.sis.coverage.grid.GridGeometry;
+import org.apache.sis.map.MapLayer;
+import org.apache.sis.style.Style;
+
+/**
+ *
+ * @author Johann Sorel (Geomatys)
+ */
+public interface StylePainter {
+
+ Class<? extends Style> getStyleClass();
+
+ void paint(Graphics2D g, BufferedImage image, GridGeometry gridGeometry,
MapLayer layer);
+
+}
diff --git
a/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/SymbolizerPainter.java
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/SymbolizerPainter.java
new file mode 100644
index 0000000000..c954bca315
--- /dev/null
+++
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/SymbolizerPainter.java
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sis.map.service;
+
+import java.awt.Graphics2D;
+import org.apache.sis.coverage.grid.GridGeometry;
+import org.apache.sis.map.MapLayer;
+import org.apache.sis.style.se1.Symbolizer;
+
+/**
+ *
+ * @author Johann Sorel (Geomatys)
+ */
+public abstract class SymbolizerPainter {
+
+ protected final Symbolizer<?> symbolizer;
+
+ public SymbolizerPainter(Symbolizer<?> symbolizer) {
+ this.symbolizer = symbolizer;
+ }
+
+ public abstract void paint(Graphics2D g, GridGeometry gridGeometry,
MapLayer layer);
+
+}
diff --git
a/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/SymbolizerPainterDescription.java
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/SymbolizerPainterDescription.java
new file mode 100644
index 0000000000..3022c94347
--- /dev/null
+++
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/SymbolizerPainterDescription.java
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sis.map.service;
+
+import org.apache.sis.style.se1.Symbolizer;
+
+/**
+ *
+ * @author Johann Sorel (Geomatys)
+ */
+public interface SymbolizerPainterDescription<T extends Symbolizer> {
+
+ /**
+ * @return The symbolizer class handle by this renderer.
+ */
+ Class<T> getSymbolizerClass();
+
+ /**
+ * Create a renderer fixed for a symbol and a context.
+ *
+ * @param symbol : cached symbolizer
+ * @param context : rendering context
+ * @return SymbolizerRenderer or null if symbol is never visible.
+ */
+ SymbolizerPainter createRenderer(T symbol);
+
+ //TODO Glyph methods for legend
+
+}
diff --git
a/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/TextSymbolizerPainter.java
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/TextSymbolizerPainter.java
new file mode 100644
index 0000000000..f6aff9a3cd
--- /dev/null
+++
b/incubator/src/org.apache.sis.portrayal.map/main/org/apache/sis/map/service/TextSymbolizerPainter.java
@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sis.map.service;
+
+import java.awt.Graphics2D;
+import org.apache.sis.coverage.grid.GridGeometry;
+import org.apache.sis.map.MapLayer;
+import org.apache.sis.style.se1.Symbolizer;
+
+/**
+ *
+ * @author Johann Sorel (Geomatys)
+ */
+final class TextSymbolizerPainter extends SymbolizerPainter {
+
+ public TextSymbolizerPainter(Symbolizer<?> symbolizer) {
+ super(symbolizer);
+ }
+
+ @Override
+ public void paint(Graphics2D g, GridGeometry gridGeometry, MapLayer layer)
{
+ throw new UnsupportedOperationException("Not supported yet.");
+ }
+
+}
