Gwt wrapper

vtm-gdx-html/src/org/oscim/gdx/client/GwtBitmap.java

@@ -1,8 +1,10 @@
 package org.oscim.gdx.client;
 
+import org.oscim.backend.Log;
 import org.oscim.backend.canvas.Bitmap;
 
 import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.files.FileHandle;
 import com.badlogic.gdx.graphics.GL10;
 import com.badlogic.gdx.graphics.Pixmap;
 import com.google.gwt.dom.client.ImageElement;
@@ -10,28 +12,39 @@ import com.google.gwt.user.client.ui.Image;
 import com.google.gwt.user.client.ui.RootPanel;
 
 public class GwtBitmap implements Bitmap {
-	Pixmap bitmap;
+	Pixmap pixmap;
 	Image image;
-
+	boolean disposable;
 	public GwtBitmap(Image data) {
 		ImageElement imageElement = ImageElement.as(data.getElement());
-		bitmap = new Pixmap(imageElement);
+		pixmap = new Pixmap(imageElement);
 		image = data;
 	}
 
+	/** always argb8888 */
+	public GwtBitmap(int width, int height, int format) {
+		pixmap = new Pixmap(width, height, null);
+	}
+
+	public GwtBitmap(String fileName) {
+		FileHandle handle = Gdx.files.internal(fileName);
+		pixmap = new Pixmap(handle);
+		disposable = true;
+	}
+
 	@Override
 	public int getWidth() {
-		return bitmap.getWidth();
+		return pixmap.getWidth();
 	}
 
 	@Override
 	public int getHeight() {
-		return bitmap.getHeight();
+		return pixmap.getHeight();
 	}
 
 	@Override
 	public void recycle() {
-		bitmap.dispose();
+		pixmap.dispose();
 	}
 
 	@Override
@@ -46,14 +59,18 @@ public class GwtBitmap implements Bitmap {
 	@Override
 	public int uploadToTexture(boolean replace) {
 
-		Gdx.gl.glTexImage2D(GL10.GL_TEXTURE_2D, 0, bitmap.getGLInternalFormat(), bitmap.getWidth(),
+		Gdx.gl.glTexImage2D(GL10.GL_TEXTURE_2D, 0, pixmap.getGLInternalFormat(), pixmap.getWidth(),
-		                    bitmap.getHeight(), 0,
+				pixmap.getHeight(), 0,
-		                    bitmap.getGLFormat(), bitmap.getGLType(), bitmap.getPixels());
+				pixmap.getGLFormat(), pixmap.getGLType(), pixmap.getPixels());
 
-		bitmap.dispose();
+
+		if (disposable || image != null){
+			Log.d("", "dispose pixmap " +getWidth() +"/" + getHeight());
+			pixmap.dispose();
 
 			if (image != null)
 				RootPanel.get().remove(image);
+		}
 
 		return 1;
 	}

vtm-gdx-html/src/org/oscim/gdx/client/GwtCanvas.java

@@ -0,0 +1,49 @@
+package org.oscim.gdx.client;
+
+import org.oscim.backend.Log;
+import org.oscim.backend.canvas.Bitmap;
+import org.oscim.backend.canvas.Paint;
+
+import com.google.gwt.canvas.dom.client.Context2d;
+
+public class GwtCanvas implements org.oscim.backend.canvas.Canvas {
+	GwtBitmap bitmap;
+	public GwtCanvas() {
+		// canvas comes with gdx pixmap
+	}
+
+	@Override
+	public void setBitmap(Bitmap bitmap) {
+		this.bitmap = (GwtBitmap) bitmap;
+		this.bitmap.pixmap.setColor(0);
+		this.bitmap.pixmap.getContext().clearRect(0, 0, this.bitmap.getWidth(), this.bitmap.getHeight());
+	}
+
+	@Override
+	public void drawText(String string, float x, float y, Paint paint) {
+		if (bitmap == null){
+			Log.d("", "no bitmap set on canvas");
+		}
+
+		GwtPaint p = (GwtPaint) paint;
+		Context2d ctx = bitmap.pixmap.getContext();
+		ctx.setFont(p.font);
+
+		if (p.stroke){
+			Log.d("", "stroke " + p.stroke + " " + p.color + " " + p.font + " "+ string);
+			ctx.setStrokeStyle(p.color);
+			ctx.strokeText(string, x, y);
+		} else{
+			Log.d("", "fill " + p.stroke + " " + p.color + " " + p.font + " "+ string);
+			ctx.setFillStyle(p.color);
+			ctx.fillText(string, x, y);
+		}
+	}
+
+	@Override
+	public void drawBitmap(Bitmap bitmap, float x, float y) {
+		// TODO Auto-generated method stub
+
+	}
+
+}

vtm-gdx-html/src/org/oscim/gdx/client/GwtCanvasAdapter.java

@@ -4,17 +4,40 @@ import java.io.InputStream;
 
 import org.oscim.backend.CanvasAdapter;
 import org.oscim.backend.canvas.Bitmap;
-import org.oscim.backend.canvas.Canvas;
 import org.oscim.backend.canvas.Paint;
 
+import com.google.gwt.canvas.client.Canvas;
+import com.google.gwt.canvas.dom.client.Context2d;
+import com.google.gwt.canvas.dom.client.TextMetrics;
+
 public class GwtCanvasAdapter extends CanvasAdapter {
 
+	public static final GwtCanvasAdapter INSTANCE = new GwtCanvasAdapter();
+	static final Context2d ctx;
+	static {
+		Canvas canvas = Canvas.createIfSupported();
+		canvas.setCoordinateSpaceWidth(1);
+		canvas.setCoordinateSpaceHeight(1);
+		ctx = canvas.getContext2d();
+	}
+
+	static synchronized float getTextWidth(String text, String font) {
+		ctx.setFont(font);
+		TextMetrics tm = ctx.measureText(text);
+		return (float)tm.getWidth();
+	}
+
 	@Override
 	public Bitmap decodeBitmap(InputStream in) {
-
+		//ImageData data = new ImageData();
 		return null;
 	}
 
+	@Override
+	public Bitmap loadBitmapAsset(String fileName) {
+		return new GwtBitmap(fileName);
+	}
+
 	@Override
 	public int getColor(Color color) {
 		// TODO Auto-generated method stub
@@ -23,8 +46,7 @@ public class GwtCanvasAdapter extends CanvasAdapter {
 
 	@Override
 	public Paint getPaint() {
-		// TODO Auto-generated method stub
+		return new GwtPaint();
-		return null;
 	}
 
 	@Override
@@ -35,14 +57,12 @@ public class GwtCanvasAdapter extends CanvasAdapter {
 
 	@Override
 	public Bitmap getBitmap(int width, int height, int format) {
-		// TODO Auto-generated method stub
+		return new GwtBitmap(width, height, format);
-		return null;
 	}
 
 	@Override
-	public Canvas getCanvas() {
+	public org.oscim.backend.canvas.Canvas getCanvas() {
-		// TODO Auto-generated method stub
+		return new GwtCanvas();
-		return null;
 	}
 
 }

vtm-gdx-html/src/org/oscim/gdx/client/GwtPaint.java

@@ -0,0 +1,100 @@
+package org.oscim.gdx.client;
+
+import org.oscim.backend.canvas.Bitmap;
+import org.oscim.backend.canvas.Paint;
+
+import com.badlogic.gdx.graphics.Pixmap;
+
+public class GwtPaint implements Paint {
+
+	String color;
+	boolean stroke;
+
+	float strokeWidth;
+	float fontSize;
+	Align mAlign;
+
+	String font = "15px sans-serif";
+
+	//private int cap;
+
+	@Override
+	public int getColor() {
+		return 0;
+	}
+
+	@Override
+	public int getTextHeight(String text) {
+		return 0;
+	}
+
+	@Override
+	public int getTextWidth(String text) {
+		return 0;
+	}
+
+	@Override
+	public void setBitmapShader(Bitmap bitmap) {
+	}
+
+	@Override
+	public void setColor(int color) {
+		float a = ((color >>> 24) & 0xff) / 255f;
+		int r = (color >>> 16) & 0xff;
+		int g = (color >>> 8) & 0xff;
+		int b = (color & 0xff) ;
+
+		this.color = Pixmap.make(r, g, b, a);
+	}
+
+	@Override
+	public void setDashPathEffect(float[] strokeDasharray) {
+	}
+
+	@Override
+	public void setStrokeCap(Cap cap) {
+		stroke = true;
+		// TODO
+	}
+
+	@Override
+	public void setStrokeWidth(float width) {
+		stroke = true;
+		strokeWidth = width;
+	}
+
+	@Override
+	public void setStyle(Style style) {
+	}
+
+	@Override
+	public void setTextAlign(Align align) {
+		mAlign = align;
+	}
+
+	@Override
+	public void setTextSize(float size) {
+		fontSize = size;
+	}
+
+	@Override
+	public void setTypeface(FontFamily fontFamily, FontStyle fontStyle) {
+
+	}
+
+	@Override
+	public float measureText(String text) {
+		return GwtCanvasAdapter.getTextWidth(text, font);
+	}
+
+	@Override
+	public float getFontHeight() {
+		return 16;
+	}
+
+	@Override
+	public float getFontDescent() {
+		return 4;
+	}
+
+}