Render themes: allow caption symbols without texture atlas, #64

vtm/src/org/oscim/layers/tile/vector/labeling/LabelPlacement.java

@@ -426,8 +426,11 @@ public class LabelPlacement {
         for (Label ti = mLabels; ti != null; ti = (Label) ti.next) {
             /* add caption symbols */
             if (ti.text.caption) {
-                if (ti.text.texture != null) {
+                if (ti.text.bitmap != null || ti.text.texture != null) {
                     SymbolItem s = SymbolItem.pool.get();
+                    if (ti.text.bitmap != null)
+                        s.bitmap = ti.text.bitmap;
+                    else
                         s.texRegion = ti.text.texture;
                     s.x = ti.x;
                     s.y = ti.y;

vtm/src/org/oscim/theme/XmlThemeBuilder.java

@@ -763,9 +763,17 @@ public class XmlThemeBuilder extends DefaultHandler {
                 // NB: minus..
                 b.dy = -Float.parseFloat(value) * CanvasAdapter.dpi / 160;
 
-            else if ("symbol".equals(name))
+            else if ("symbol".equals(name)) {
+                String lowValue = value.toLowerCase(Locale.ENGLISH);
+                if (lowValue.endsWith(".png") || lowValue.endsWith(".svg")) {
+                    try {
+                        b.bitmap = CanvasAdapter.getBitmapAsset(mRelativePathPrefix, value);
+                    } catch (Exception e) {
+                        log.debug(e.getMessage());
+                    }
+                } else
                     b.texture = getAtlasRegion(value);
-            else if ("use".equals(name))
+            } else if ("use".equals(name))
                 ;/* ignore */
             else
                 logUnknownAttribute(elementName, name, value, i);

vtm/src/org/oscim/theme/styles/TextStyle.java

@@ -1,5 +1,6 @@
 /*
  * Copyright 2013 Hannes Janetzek
+ * Copyright 2016 devemux86
  *
  * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
  *
@@ -17,6 +18,7 @@
 package org.oscim.theme.styles;
 
 import org.oscim.backend.CanvasAdapter;
+import org.oscim.backend.canvas.Bitmap;
 import org.oscim.backend.canvas.Color;
 import org.oscim.backend.canvas.Paint;
 import org.oscim.backend.canvas.Paint.Align;
@@ -34,6 +36,7 @@ public final class TextStyle extends RenderStyle {
         public boolean caption;
         public float dy;
         public int priority;
+        public Bitmap bitmap;
         public TextureRegion texture;
         public FontFamily fontFamily;
         public FontStyle fontStyle;
@@ -46,6 +49,7 @@ public final class TextStyle extends RenderStyle {
             fontSize = 0;
             caption = false;
             priority = Integer.MAX_VALUE;
+            bitmap = null;
             texture = null;
             fillColor = Color.BLACK;
             strokeColor = Color.BLACK;
@@ -94,6 +98,11 @@ public final class TextStyle extends RenderStyle {
             return self();
         }
 
+        public T bitmap(Bitmap bitmap) {
+            this.bitmap = bitmap;
+            return self();
+        }
+
         public T texture(TextureRegion texture) {
             this.texture = texture;
             return self();
@@ -117,6 +126,7 @@ public final class TextStyle extends RenderStyle {
             fontSize = other.fontSize;
             caption = other.caption;
             priority = other.priority;
+            bitmap = other.bitmap;
             texture = other.texture;
             fillColor = other.fillColor;
             strokeColor = other.strokeColor;
@@ -131,6 +141,7 @@ public final class TextStyle extends RenderStyle {
             this.caption = style.caption;
             this.dy = style.dy;
             this.priority = style.priority;
+            this.bitmap = style.bitmap;
             this.texture = style.texture;
             this.fillColor = style.paint.getColor();
             this.fontFamily = FontFamily.DEFAULT;
@@ -148,6 +159,7 @@ public final class TextStyle extends RenderStyle {
         this.caption = tb.caption;
         this.dy = tb.dy;
         this.priority = tb.priority;
+        this.bitmap = tb.bitmap;
         this.texture = tb.texture;
 
         paint = CanvasAdapter.newPaint();
@@ -185,8 +197,15 @@ public final class TextStyle extends RenderStyle {
     public float fontHeight;
     public float fontDescent;
 
+    public final Bitmap bitmap;
     public final TextureRegion texture;
 
+    @Override
+    public void dispose() {
+        if (bitmap != null)
+            bitmap.recycle();
+    }
+
     @Override
     public void renderNode(Callback cb) {
         cb.renderText(this);