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Diffstat (limited to 'tools/layoutlib/bridge/src/android/graphics/Canvas_Delegate.java')
| -rw-r--r-- | tools/layoutlib/bridge/src/android/graphics/Canvas_Delegate.java | 1334 |
1 files changed, 1334 insertions, 0 deletions
diff --git a/tools/layoutlib/bridge/src/android/graphics/Canvas_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/Canvas_Delegate.java new file mode 100644 index 0000000..4decd1a --- /dev/null +++ b/tools/layoutlib/bridge/src/android/graphics/Canvas_Delegate.java @@ -0,0 +1,1334 @@ +/* + * Copyright (C) 2010 The Android Open Source Project + * + * Licensed 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 android.graphics; + +import com.android.ide.common.rendering.api.LayoutLog; +import com.android.layoutlib.bridge.Bridge; +import com.android.layoutlib.bridge.impl.DelegateManager; +import com.android.layoutlib.bridge.impl.GcSnapshot; +import com.android.tools.layoutlib.annotations.LayoutlibDelegate; + +import android.graphics.Bitmap.Config; +import android.graphics.Paint_Delegate.FontInfo; +import android.text.TextUtils; + +import java.awt.Color; +import java.awt.Composite; +import java.awt.Graphics2D; +import java.awt.Rectangle; +import java.awt.RenderingHints; +import java.awt.Shape; +import java.awt.geom.AffineTransform; +import java.awt.image.BufferedImage; +import java.util.List; + + +/** + * Delegate implementing the native methods of android.graphics.Canvas + * + * Through the layoutlib_create tool, the original native methods of Canvas have been replaced + * by calls to methods of the same name in this delegate class. + * + * This class behaves like the original native implementation, but in Java, keeping previously + * native data into its own objects and mapping them to int that are sent back and forth between + * it and the original Canvas class. + * + * @see DelegateManager + * + */ +public final class Canvas_Delegate { + + // ---- delegate manager ---- + private static final DelegateManager<Canvas_Delegate> sManager = + new DelegateManager<Canvas_Delegate>(Canvas_Delegate.class); + + // ---- delegate helper data ---- + + private final static boolean[] sBoolOut = new boolean[1]; + + // ---- delegate data ---- + private Bitmap_Delegate mBitmap; + private GcSnapshot mSnapshot; + + private DrawFilter_Delegate mDrawFilter = null; + + // ---- Public Helper methods ---- + + /** + * Returns the native delegate associated to a given {@link Canvas} object. + */ + public static Canvas_Delegate getDelegate(Canvas canvas) { + return sManager.getDelegate(canvas.mNativeCanvas); + } + + /** + * Returns the native delegate associated to a given an int referencing a {@link Canvas} object. + */ + public static Canvas_Delegate getDelegate(int native_canvas) { + return sManager.getDelegate(native_canvas); + } + + /** + * Returns the current {@link Graphics2D} used to draw. + */ + public GcSnapshot getSnapshot() { + return mSnapshot; + } + + /** + * Returns the {@link DrawFilter} delegate or null if none have been set. + * + * @return the delegate or null. + */ + public DrawFilter_Delegate getDrawFilter() { + return mDrawFilter; + } + + // ---- native methods ---- + + @LayoutlibDelegate + /*package*/ static boolean isOpaque(Canvas thisCanvas) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(thisCanvas.mNativeCanvas); + if (canvasDelegate == null) { + return false; + } + + return canvasDelegate.mBitmap.getConfig() == Config.RGB_565; + } + + @LayoutlibDelegate + /*package*/ static int getWidth(Canvas thisCanvas) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(thisCanvas.mNativeCanvas); + if (canvasDelegate == null) { + return 0; + } + + return canvasDelegate.mBitmap.getImage().getWidth(); + } + + @LayoutlibDelegate + /*package*/ static int getHeight(Canvas thisCanvas) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(thisCanvas.mNativeCanvas); + if (canvasDelegate == null) { + return 0; + } + + return canvasDelegate.mBitmap.getImage().getHeight(); + } + + @LayoutlibDelegate + /*package*/ static void translate(Canvas thisCanvas, float dx, float dy) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(thisCanvas.mNativeCanvas); + if (canvasDelegate == null) { + return; + } + + canvasDelegate.getSnapshot().translate(dx, dy); + } + + @LayoutlibDelegate + /*package*/ static void rotate(Canvas thisCanvas, float degrees) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(thisCanvas.mNativeCanvas); + if (canvasDelegate == null) { + return; + } + + canvasDelegate.getSnapshot().rotate(Math.toRadians(degrees)); + } + + @LayoutlibDelegate + /*package*/ static void scale(Canvas thisCanvas, float sx, float sy) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(thisCanvas.mNativeCanvas); + if (canvasDelegate == null) { + return; + } + + canvasDelegate.getSnapshot().scale(sx, sy); + } + + @LayoutlibDelegate + /*package*/ static void skew(Canvas thisCanvas, float kx, float ky) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(thisCanvas.mNativeCanvas); + if (canvasDelegate == null) { + return; + } + + // get the current top graphics2D object. + GcSnapshot g = canvasDelegate.getSnapshot(); + + // get its current matrix + AffineTransform currentTx = g.getTransform(); + // get the AffineTransform for the given skew. + float[] mtx = Matrix_Delegate.getSkew(kx, ky); + AffineTransform matrixTx = Matrix_Delegate.getAffineTransform(mtx); + + // combine them so that the given matrix is applied after. + currentTx.preConcatenate(matrixTx); + + // give it to the graphics2D as a new matrix replacing all previous transform + g.setTransform(currentTx); + } + + @LayoutlibDelegate + /*package*/ static boolean clipRect(Canvas thisCanvas, RectF rect) { + return clipRect(thisCanvas, rect.left, rect.top, rect.right, rect.bottom); + } + + @LayoutlibDelegate + /*package*/ static boolean clipRect(Canvas thisCanvas, Rect rect) { + return clipRect(thisCanvas, (float) rect.left, (float) rect.top, + (float) rect.right, (float) rect.bottom); + } + + @LayoutlibDelegate + /*package*/ static boolean clipRect(Canvas thisCanvas, float left, float top, float right, + float bottom) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(thisCanvas.mNativeCanvas); + if (canvasDelegate == null) { + return false; + } + + return canvasDelegate.clipRect(left, top, right, bottom, Region.Op.INTERSECT.nativeInt); + } + + @LayoutlibDelegate + /*package*/ static boolean clipRect(Canvas thisCanvas, int left, int top, int right, + int bottom) { + + return clipRect(thisCanvas, (float) left, (float) top, (float) right, (float) bottom); + } + + @LayoutlibDelegate + /*package*/ static int save(Canvas thisCanvas) { + return save(thisCanvas, Canvas.MATRIX_SAVE_FLAG | Canvas.CLIP_SAVE_FLAG); + } + + @LayoutlibDelegate + /*package*/ static int save(Canvas thisCanvas, int saveFlags) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(thisCanvas.mNativeCanvas); + if (canvasDelegate == null) { + return 0; + } + + return canvasDelegate.save(saveFlags); + } + + @LayoutlibDelegate + /*package*/ static void restore(Canvas thisCanvas) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(thisCanvas.mNativeCanvas); + if (canvasDelegate == null) { + return; + } + + canvasDelegate.restore(); + } + + @LayoutlibDelegate + /*package*/ static int getSaveCount(Canvas thisCanvas) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(thisCanvas.mNativeCanvas); + if (canvasDelegate == null) { + return 0; + } + + return canvasDelegate.getSnapshot().size(); + } + + @LayoutlibDelegate + /*package*/ static void restoreToCount(Canvas thisCanvas, int saveCount) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(thisCanvas.mNativeCanvas); + if (canvasDelegate == null) { + return; + } + + canvasDelegate.restoreTo(saveCount); + } + + @LayoutlibDelegate + /*package*/ static void drawPoints(Canvas thisCanvas, float[] pts, int offset, int count, + Paint paint) { + // FIXME + Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED, + "Canvas.drawPoint is not supported.", null, null /*data*/); + } + + @LayoutlibDelegate + /*package*/ static void drawPoint(Canvas thisCanvas, float x, float y, Paint paint) { + // FIXME + Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED, + "Canvas.drawPoint is not supported.", null, null /*data*/); + } + + @LayoutlibDelegate + /*package*/ static void drawLines(Canvas thisCanvas, + final float[] pts, final int offset, final int count, + Paint paint) { + draw(thisCanvas.mNativeCanvas, paint.mNativePaint, false /*compositeOnly*/, + false /*forceSrcMode*/, new GcSnapshot.Drawable() { + public void draw(Graphics2D graphics, Paint_Delegate paint) { + for (int i = 0 ; i < count ; i += 4) { + graphics.drawLine((int)pts[i + offset], (int)pts[i + offset + 1], + (int)pts[i + offset + 2], (int)pts[i + offset + 3]); + } + } + }); + } + + @LayoutlibDelegate + /*package*/ static void freeCaches() { + // nothing to be done here. + } + + @LayoutlibDelegate + /*package*/ static int initRaster(int nativeBitmapOrZero) { + if (nativeBitmapOrZero > 0) { + // get the Bitmap from the int + Bitmap_Delegate bitmapDelegate = Bitmap_Delegate.getDelegate(nativeBitmapOrZero); + + // create a new Canvas_Delegate with the given bitmap and return its new native int. + Canvas_Delegate newDelegate = new Canvas_Delegate(bitmapDelegate); + + return sManager.addNewDelegate(newDelegate); + } else { + // create a new Canvas_Delegate and return its new native int. + Canvas_Delegate newDelegate = new Canvas_Delegate(); + + return sManager.addNewDelegate(newDelegate); + } + } + + @LayoutlibDelegate + /*package*/ static void native_setBitmap(int nativeCanvas, int bitmap) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nativeCanvas); + if (canvasDelegate == null) { + return; + } + + // get the delegate from the native int. + Bitmap_Delegate bitmapDelegate = Bitmap_Delegate.getDelegate(bitmap); + if (bitmapDelegate == null) { + return; + } + + canvasDelegate.setBitmap(bitmapDelegate); + } + + @LayoutlibDelegate + /*package*/ static int native_saveLayer(int nativeCanvas, RectF bounds, + int paint, int layerFlags) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nativeCanvas); + if (canvasDelegate == null) { + return 0; + } + + Paint_Delegate paintDelegate = Paint_Delegate.getDelegate(paint); + if (paintDelegate == null) { + return 0; + } + + return canvasDelegate.saveLayer(bounds, paintDelegate, layerFlags); + } + + @LayoutlibDelegate + /*package*/ static int native_saveLayer(int nativeCanvas, float l, + float t, float r, float b, + int paint, int layerFlags) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nativeCanvas); + if (canvasDelegate == null) { + return 0; + } + + Paint_Delegate paintDelegate = Paint_Delegate.getDelegate(paint); + if (paintDelegate == null) { + return 0; + } + + return canvasDelegate.saveLayer(new RectF(l, t, r, b), + paintDelegate, layerFlags); + } + + @LayoutlibDelegate + /*package*/ static int native_saveLayerAlpha(int nativeCanvas, + RectF bounds, int alpha, + int layerFlags) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nativeCanvas); + if (canvasDelegate == null) { + return 0; + } + + return canvasDelegate.saveLayerAlpha(bounds, alpha, layerFlags); + } + + @LayoutlibDelegate + /*package*/ static int native_saveLayerAlpha(int nativeCanvas, float l, + float t, float r, float b, + int alpha, int layerFlags) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nativeCanvas); + if (canvasDelegate == null) { + return 0; + } + + return canvasDelegate.saveLayerAlpha(new RectF(l, t, r, b), alpha, layerFlags); + } + + + @LayoutlibDelegate + /*package*/ static void native_concat(int nCanvas, int nMatrix) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nCanvas); + if (canvasDelegate == null) { + return; + } + + Matrix_Delegate matrixDelegate = Matrix_Delegate.getDelegate(nMatrix); + if (matrixDelegate == null) { + return; + } + + // get the current top graphics2D object. + GcSnapshot snapshot = canvasDelegate.getSnapshot(); + + // get its current matrix + AffineTransform currentTx = snapshot.getTransform(); + // get the AffineTransform of the given matrix + AffineTransform matrixTx = matrixDelegate.getAffineTransform(); + + // combine them so that the given matrix is applied after. + currentTx.preConcatenate(matrixTx); + + // give it to the graphics2D as a new matrix replacing all previous transform + snapshot.setTransform(currentTx); + } + + @LayoutlibDelegate + /*package*/ static void native_setMatrix(int nCanvas, int nMatrix) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nCanvas); + if (canvasDelegate == null) { + return; + } + + Matrix_Delegate matrixDelegate = Matrix_Delegate.getDelegate(nMatrix); + if (matrixDelegate == null) { + return; + } + + // get the current top graphics2D object. + GcSnapshot snapshot = canvasDelegate.getSnapshot(); + + // get the AffineTransform of the given matrix + AffineTransform matrixTx = matrixDelegate.getAffineTransform(); + + // give it to the graphics2D as a new matrix replacing all previous transform + snapshot.setTransform(matrixTx); + + if (matrixDelegate.hasPerspective()) { + assert false; + Bridge.getLog().fidelityWarning(LayoutLog.TAG_MATRIX_AFFINE, + "android.graphics.Canvas#setMatrix(android.graphics.Matrix) only " + + "supports affine transformations.", null, null /*data*/); + } + } + + @LayoutlibDelegate + /*package*/ static boolean native_clipRect(int nCanvas, + float left, float top, + float right, float bottom, + int regionOp) { + + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nCanvas); + if (canvasDelegate == null) { + return false; + } + + return canvasDelegate.clipRect(left, top, right, bottom, regionOp); + } + + @LayoutlibDelegate + /*package*/ static boolean native_clipPath(int nativeCanvas, + int nativePath, + int regionOp) { + Canvas_Delegate canvasDelegate = sManager.getDelegate(nativeCanvas); + if (canvasDelegate == null) { + return true; + } + + Path_Delegate pathDelegate = Path_Delegate.getDelegate(nativePath); + if (pathDelegate == null) { + return true; + } + + return canvasDelegate.mSnapshot.clip(pathDelegate.getJavaShape(), regionOp); + } + + @LayoutlibDelegate + /*package*/ static boolean native_clipRegion(int nativeCanvas, + int nativeRegion, + int regionOp) { + Canvas_Delegate canvasDelegate = sManager.getDelegate(nativeCanvas); + if (canvasDelegate == null) { + return true; + } + + Region_Delegate region = Region_Delegate.getDelegate(nativeRegion); + if (region == null) { + return true; + } + + return canvasDelegate.mSnapshot.clip(region.getJavaArea(), regionOp); + } + + @LayoutlibDelegate + /*package*/ static void nativeSetDrawFilter(int nativeCanvas, int nativeFilter) { + Canvas_Delegate canvasDelegate = sManager.getDelegate(nativeCanvas); + if (canvasDelegate == null) { + return; + } + + canvasDelegate.mDrawFilter = DrawFilter_Delegate.getDelegate(nativeFilter); + + if (canvasDelegate.mDrawFilter != null && + canvasDelegate.mDrawFilter.isSupported() == false) { + Bridge.getLog().fidelityWarning(LayoutLog.TAG_DRAWFILTER, + canvasDelegate.mDrawFilter.getSupportMessage(), null, null /*data*/); + } + } + + @LayoutlibDelegate + /*package*/ static boolean native_getClipBounds(int nativeCanvas, + Rect bounds) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nativeCanvas); + if (canvasDelegate == null) { + return false; + } + + Rectangle rect = canvasDelegate.getSnapshot().getClip().getBounds(); + if (rect != null && rect.isEmpty() == false) { + bounds.left = rect.x; + bounds.top = rect.y; + bounds.right = rect.x + rect.width; + bounds.bottom = rect.y + rect.height; + return true; + } + + return false; + } + + @LayoutlibDelegate + /*package*/ static void native_getCTM(int canvas, int matrix) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(canvas); + if (canvasDelegate == null) { + return; + } + + Matrix_Delegate matrixDelegate = Matrix_Delegate.getDelegate(matrix); + if (matrixDelegate == null) { + return; + } + + AffineTransform transform = canvasDelegate.getSnapshot().getTransform(); + matrixDelegate.set(Matrix_Delegate.makeValues(transform)); + } + + @LayoutlibDelegate + /*package*/ static boolean native_quickReject(int nativeCanvas, + RectF rect, + int native_edgeType) { + // FIXME properly implement quickReject + return false; + } + + @LayoutlibDelegate + /*package*/ static boolean native_quickReject(int nativeCanvas, + int path, + int native_edgeType) { + // FIXME properly implement quickReject + return false; + } + + @LayoutlibDelegate + /*package*/ static boolean native_quickReject(int nativeCanvas, + float left, float top, + float right, float bottom, + int native_edgeType) { + // FIXME properly implement quickReject + return false; + } + + @LayoutlibDelegate + /*package*/ static void native_drawRGB(int nativeCanvas, int r, int g, int b) { + native_drawColor(nativeCanvas, 0xFF000000 | r << 16 | (g&0xFF) << 8 | (b&0xFF), + PorterDuff.Mode.SRC_OVER.nativeInt); + + } + + @LayoutlibDelegate + /*package*/ static void native_drawARGB(int nativeCanvas, int a, int r, int g, int b) { + native_drawColor(nativeCanvas, a << 24 | (r&0xFF) << 16 | (g&0xFF) << 8 | (b&0xFF), + PorterDuff.Mode.SRC_OVER.nativeInt); + } + + @LayoutlibDelegate + /*package*/ static void native_drawColor(int nativeCanvas, int color) { + native_drawColor(nativeCanvas, color, PorterDuff.Mode.SRC_OVER.nativeInt); + } + + @LayoutlibDelegate + /*package*/ static void native_drawColor(int nativeCanvas, final int color, final int mode) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nativeCanvas); + if (canvasDelegate == null) { + return; + } + + final int w = canvasDelegate.mBitmap.getImage().getWidth(); + final int h = canvasDelegate.mBitmap.getImage().getHeight(); + draw(nativeCanvas, new GcSnapshot.Drawable() { + + public void draw(Graphics2D graphics, Paint_Delegate paint) { + // reset its transform just in case + graphics.setTransform(new AffineTransform()); + + // set the color + graphics.setColor(new Color(color, true /*alpha*/)); + + Composite composite = PorterDuffXfermode_Delegate.getComposite( + PorterDuffXfermode_Delegate.getPorterDuffMode(mode), 0xFF); + if (composite != null) { + graphics.setComposite(composite); + } + + graphics.fillRect(0, 0, w, h); + } + }); + } + + @LayoutlibDelegate + /*package*/ static void native_drawPaint(int nativeCanvas, int paint) { + // FIXME + Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED, + "Canvas.drawPaint is not supported.", null, null /*data*/); + } + + @LayoutlibDelegate + /*package*/ static void native_drawLine(int nativeCanvas, + final float startX, final float startY, final float stopX, final float stopY, + int paint) { + + draw(nativeCanvas, paint, false /*compositeOnly*/, false /*forceSrcMode*/, + new GcSnapshot.Drawable() { + public void draw(Graphics2D graphics, Paint_Delegate paint) { + graphics.drawLine((int)startX, (int)startY, (int)stopX, (int)stopY); + } + }); + } + + @LayoutlibDelegate + /*package*/ static void native_drawRect(int nativeCanvas, RectF rect, + int paint) { + native_drawRect(nativeCanvas, rect.left, rect.top, rect.right, rect.bottom, paint); + } + + @LayoutlibDelegate + /*package*/ static void native_drawRect(int nativeCanvas, + final float left, final float top, final float right, final float bottom, int paint) { + + draw(nativeCanvas, paint, false /*compositeOnly*/, false /*forceSrcMode*/, + new GcSnapshot.Drawable() { + public void draw(Graphics2D graphics, Paint_Delegate paint) { + int style = paint.getStyle(); + + // draw + if (style == Paint.Style.FILL.nativeInt || + style == Paint.Style.FILL_AND_STROKE.nativeInt) { + graphics.fillRect((int)left, (int)top, + (int)(right-left), (int)(bottom-top)); + } + + if (style == Paint.Style.STROKE.nativeInt || + style == Paint.Style.FILL_AND_STROKE.nativeInt) { + graphics.drawRect((int)left, (int)top, + (int)(right-left), (int)(bottom-top)); + } + } + }); + } + + @LayoutlibDelegate + /*package*/ static void native_drawOval(int nativeCanvas, final RectF oval, int paint) { + if (oval.right > oval.left && oval.bottom > oval.top) { + draw(nativeCanvas, paint, false /*compositeOnly*/, false /*forceSrcMode*/, + new GcSnapshot.Drawable() { + public void draw(Graphics2D graphics, Paint_Delegate paint) { + int style = paint.getStyle(); + + // draw + if (style == Paint.Style.FILL.nativeInt || + style == Paint.Style.FILL_AND_STROKE.nativeInt) { + graphics.fillOval((int)oval.left, (int)oval.top, + (int)oval.width(), (int)oval.height()); + } + + if (style == Paint.Style.STROKE.nativeInt || + style == Paint.Style.FILL_AND_STROKE.nativeInt) { + graphics.drawOval((int)oval.left, (int)oval.top, + (int)oval.width(), (int)oval.height()); + } + } + }); + } + } + + @LayoutlibDelegate + /*package*/ static void native_drawCircle(int nativeCanvas, + float cx, float cy, float radius, int paint) { + native_drawOval(nativeCanvas, + new RectF(cx - radius, cy - radius, radius*2, radius*2), + paint); + } + + @LayoutlibDelegate + /*package*/ static void native_drawArc(int nativeCanvas, + RectF oval, float startAngle, float sweep, boolean useCenter, int paint) { + // FIXME + Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED, + "Canvas.drawArc is not supported.", null, null /*data*/); + } + + @LayoutlibDelegate + /*package*/ static void native_drawRoundRect(int nativeCanvas, + final RectF rect, final float rx, final float ry, int paint) { + + draw(nativeCanvas, paint, false /*compositeOnly*/, false /*forceSrcMode*/, + new GcSnapshot.Drawable() { + public void draw(Graphics2D graphics, Paint_Delegate paint) { + int style = paint.getStyle(); + + // draw + if (style == Paint.Style.FILL.nativeInt || + style == Paint.Style.FILL_AND_STROKE.nativeInt) { + graphics.fillRoundRect( + (int)rect.left, (int)rect.top, + (int)rect.width(), (int)rect.height(), + (int)rx, (int)ry); + } + + if (style == Paint.Style.STROKE.nativeInt || + style == Paint.Style.FILL_AND_STROKE.nativeInt) { + graphics.drawRoundRect( + (int)rect.left, (int)rect.top, + (int)rect.width(), (int)rect.height(), + (int)rx, (int)ry); + } + } + }); + } + + @LayoutlibDelegate + /*package*/ static void native_drawPath(int nativeCanvas, int path, int paint) { + final Path_Delegate pathDelegate = Path_Delegate.getDelegate(path); + if (pathDelegate == null) { + return; + } + + draw(nativeCanvas, paint, false /*compositeOnly*/, false /*forceSrcMode*/, + new GcSnapshot.Drawable() { + public void draw(Graphics2D graphics, Paint_Delegate paint) { + Shape shape = pathDelegate.getJavaShape(); + int style = paint.getStyle(); + + if (style == Paint.Style.FILL.nativeInt || + style == Paint.Style.FILL_AND_STROKE.nativeInt) { + graphics.fill(shape); + } + + if (style == Paint.Style.STROKE.nativeInt || + style == Paint.Style.FILL_AND_STROKE.nativeInt) { + graphics.draw(shape); + } + } + }); + } + + @LayoutlibDelegate + /*package*/ static void native_drawBitmap(Canvas thisCanvas, int nativeCanvas, int bitmap, + float left, float top, + int nativePaintOrZero, + int canvasDensity, + int screenDensity, + int bitmapDensity) { + // get the delegate from the native int. + Bitmap_Delegate bitmapDelegate = Bitmap_Delegate.getDelegate(bitmap); + if (bitmapDelegate == null) { + return; + } + + BufferedImage image = bitmapDelegate.getImage(); + float right = left + image.getWidth(); + float bottom = top + image.getHeight(); + + drawBitmap(nativeCanvas, bitmapDelegate, nativePaintOrZero, + 0, 0, image.getWidth(), image.getHeight(), + (int)left, (int)top, (int)right, (int)bottom); + } + + @LayoutlibDelegate + /*package*/ static void native_drawBitmap(Canvas thisCanvas, int nativeCanvas, int bitmap, + Rect src, RectF dst, + int nativePaintOrZero, + int screenDensity, + int bitmapDensity) { + // get the delegate from the native int. + Bitmap_Delegate bitmapDelegate = Bitmap_Delegate.getDelegate(bitmap); + if (bitmapDelegate == null) { + return; + } + + BufferedImage image = bitmapDelegate.getImage(); + + if (src == null) { + drawBitmap(nativeCanvas, bitmapDelegate, nativePaintOrZero, + 0, 0, image.getWidth(), image.getHeight(), + (int)dst.left, (int)dst.top, (int)dst.right, (int)dst.bottom); + } else { + drawBitmap(nativeCanvas, bitmapDelegate, nativePaintOrZero, + src.left, src.top, src.width(), src.height(), + (int)dst.left, (int)dst.top, (int)dst.right, (int)dst.bottom); + } + } + + @LayoutlibDelegate + /*package*/ static void native_drawBitmap(int nativeCanvas, int bitmap, + Rect src, Rect dst, + int nativePaintOrZero, + int screenDensity, + int bitmapDensity) { + // get the delegate from the native int. + Bitmap_Delegate bitmapDelegate = Bitmap_Delegate.getDelegate(bitmap); + if (bitmapDelegate == null) { + return; + } + + BufferedImage image = bitmapDelegate.getImage(); + + if (src == null) { + drawBitmap(nativeCanvas, bitmapDelegate, nativePaintOrZero, + 0, 0, image.getWidth(), image.getHeight(), + dst.left, dst.top, dst.right, dst.bottom); + } else { + drawBitmap(nativeCanvas, bitmapDelegate, nativePaintOrZero, + src.left, src.top, src.width(), src.height(), + dst.left, dst.top, dst.right, dst.bottom); + } + } + + @LayoutlibDelegate + /*package*/ static void native_drawBitmap(int nativeCanvas, int[] colors, + int offset, int stride, final float x, + final float y, int width, int height, + boolean hasAlpha, + int nativePaintOrZero) { + + // create a temp BufferedImage containing the content. + final BufferedImage image = new BufferedImage(width, height, + hasAlpha ? BufferedImage.TYPE_INT_ARGB : BufferedImage.TYPE_INT_RGB); + image.setRGB(0, 0, width, height, colors, offset, stride); + + draw(nativeCanvas, nativePaintOrZero, true /*compositeOnly*/, false /*forceSrcMode*/, + new GcSnapshot.Drawable() { + public void draw(Graphics2D graphics, Paint_Delegate paint) { + if (paint != null && paint.isFilterBitmap()) { + graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION, + RenderingHints.VALUE_INTERPOLATION_BILINEAR); + } + + graphics.drawImage(image, (int) x, (int) y, null); + } + }); + } + + @LayoutlibDelegate + /*package*/ static void nativeDrawBitmapMatrix(int nCanvas, int nBitmap, + int nMatrix, int nPaint) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nCanvas); + if (canvasDelegate == null) { + return; + } + + // get the delegate from the native int, which can be null + Paint_Delegate paintDelegate = Paint_Delegate.getDelegate(nPaint); + + // get the delegate from the native int. + Bitmap_Delegate bitmapDelegate = Bitmap_Delegate.getDelegate(nBitmap); + if (bitmapDelegate == null) { + return; + } + + final BufferedImage image = getImageToDraw(bitmapDelegate, paintDelegate, sBoolOut); + + Matrix_Delegate matrixDelegate = Matrix_Delegate.getDelegate(nMatrix); + if (matrixDelegate == null) { + return; + } + + final AffineTransform mtx = matrixDelegate.getAffineTransform(); + + canvasDelegate.getSnapshot().draw(new GcSnapshot.Drawable() { + public void draw(Graphics2D graphics, Paint_Delegate paint) { + if (paint != null && paint.isFilterBitmap()) { + graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION, + RenderingHints.VALUE_INTERPOLATION_BILINEAR); + } + + //FIXME add support for canvas, screen and bitmap densities. + graphics.drawImage(image, mtx, null); + } + }, paintDelegate, true /*compositeOnly*/, false /*forceSrcMode*/); + } + + @LayoutlibDelegate + /*package*/ static void nativeDrawBitmapMesh(int nCanvas, int nBitmap, + int meshWidth, int meshHeight, float[] verts, int vertOffset, int[] colors, + int colorOffset, int nPaint) { + // FIXME + Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED, + "Canvas.drawBitmapMesh is not supported.", null, null /*data*/); + } + + @LayoutlibDelegate + /*package*/ static void nativeDrawVertices(int nCanvas, int mode, int n, + float[] verts, int vertOffset, + float[] texs, int texOffset, + int[] colors, int colorOffset, + short[] indices, int indexOffset, + int indexCount, int nPaint) { + // FIXME + Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED, + "Canvas.drawVertices is not supported.", null, null /*data*/); + } + + @LayoutlibDelegate + /*package*/ static void native_drawText(int nativeCanvas, + final char[] text, final int index, final int count, + final float startX, final float startY, int flags, int paint) { + draw(nativeCanvas, paint, false /*compositeOnly*/, false /*forceSrcMode*/, + new GcSnapshot.Drawable() { + public void draw(Graphics2D graphics, Paint_Delegate paint) { + // WARNING: the logic in this method is similar to Paint_Delegate.measureText. + // Any change to this method should be reflected in Paint.measureText + // Paint.TextAlign indicates how the text is positioned relative to X. + // LEFT is the default and there's nothing to do. + float x = startX; + float y = startY; + if (paint.getTextAlign() != Paint.Align.LEFT.nativeInt) { + float m = paint.measureText(text, index, count); + if (paint.getTextAlign() == Paint.Align.CENTER.nativeInt) { + x -= m / 2; + } else if (paint.getTextAlign() == Paint.Align.RIGHT.nativeInt) { + x -= m; + } + } + + List<FontInfo> fonts = paint.getFonts(); + + if (fonts.size() > 0) { + FontInfo mainFont = fonts.get(0); + int i = index; + int lastIndex = index + count; + while (i < lastIndex) { + // always start with the main font. + int upTo = mainFont.mFont.canDisplayUpTo(text, i, lastIndex); + if (upTo == -1) { + // draw all the rest and exit. + graphics.setFont(mainFont.mFont); + graphics.drawChars(text, i, lastIndex - i, (int)x, (int)y); + return; + } else if (upTo > 0) { + // draw what's possible + graphics.setFont(mainFont.mFont); + graphics.drawChars(text, i, upTo - i, (int)x, (int)y); + + // compute the width that was drawn to increase x + x += mainFont.mMetrics.charsWidth(text, i, upTo - i); + + // move index to the first non displayed char. + i = upTo; + + // don't call continue at this point. Since it is certain the main font + // cannot display the font a index upTo (now ==i), we move on to the + // fallback fonts directly. + } + + // no char supported, attempt to read the next char(s) with the + // fallback font. In this case we only test the first character + // and then go back to test with the main font. + // Special test for 2-char characters. + boolean foundFont = false; + for (int f = 1 ; f < fonts.size() ; f++) { + FontInfo fontInfo = fonts.get(f); + + // need to check that the font can display the character. We test + // differently if the char is a high surrogate. + int charCount = Character.isHighSurrogate(text[i]) ? 2 : 1; + upTo = fontInfo.mFont.canDisplayUpTo(text, i, i + charCount); + if (upTo == -1) { + // draw that char + graphics.setFont(fontInfo.mFont); + graphics.drawChars(text, i, charCount, (int)x, (int)y); + + // update x + x += fontInfo.mMetrics.charsWidth(text, i, charCount); + + // update the index in the text, and move on + i += charCount; + foundFont = true; + break; + + } + } + + // in case no font can display the char, display it with the main font. + // (it'll put a square probably) + if (foundFont == false) { + int charCount = Character.isHighSurrogate(text[i]) ? 2 : 1; + + graphics.setFont(mainFont.mFont); + graphics.drawChars(text, i, charCount, (int)x, (int)y); + + // measure it to advance x + x += mainFont.mMetrics.charsWidth(text, i, charCount); + + // and move to the next chars. + i += charCount; + } + } + } + } + }); + } + + @LayoutlibDelegate + /*package*/ static void native_drawText(int nativeCanvas, String text, + int start, int end, float x, + float y, int flags, int paint) { + int count = end - start; + char[] buffer = TemporaryBuffer.obtain(count); + TextUtils.getChars(text, start, end, buffer, 0); + + native_drawText(nativeCanvas, buffer, 0, count, x, y, flags, paint); + } + + @LayoutlibDelegate + /*package*/ static void native_drawTextRun(int nativeCanvas, String text, + int start, int end, int contextStart, int contextEnd, + float x, float y, int flags, int paint) { + int count = end - start; + char[] buffer = TemporaryBuffer.obtain(count); + TextUtils.getChars(text, start, end, buffer, 0); + + native_drawText(nativeCanvas, buffer, start, end, x, y, flags, paint); + } + + @LayoutlibDelegate + /*package*/ static void native_drawTextRun(int nativeCanvas, char[] text, + int start, int count, int contextStart, int contextCount, + float x, float y, int flags, int paint) { + native_drawText(nativeCanvas, text, start, count, x, y, flags, paint); + } + + @LayoutlibDelegate + /*package*/ static void native_drawPosText(int nativeCanvas, + char[] text, int index, + int count, float[] pos, + int paint) { + // FIXME + Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED, + "Canvas.drawPosText is not supported.", null, null /*data*/); + } + + @LayoutlibDelegate + /*package*/ static void native_drawPosText(int nativeCanvas, + String text, float[] pos, + int paint) { + // FIXME + Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED, + "Canvas.drawPosText is not supported.", null, null /*data*/); + } + + @LayoutlibDelegate + /*package*/ static void native_drawTextOnPath(int nativeCanvas, + char[] text, int index, + int count, int path, + float hOffset, + float vOffset, int bidiFlags, + int paint) { + // FIXME + Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED, + "Canvas.drawTextOnPath is not supported.", null, null /*data*/); + } + + @LayoutlibDelegate + /*package*/ static void native_drawTextOnPath(int nativeCanvas, + String text, int path, + float hOffset, + float vOffset, + int flags, int paint) { + // FIXME + Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED, + "Canvas.drawTextOnPath is not supported.", null, null /*data*/); + } + + @LayoutlibDelegate + /*package*/ static void native_drawPicture(int nativeCanvas, + int nativePicture) { + // FIXME + Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED, + "Canvas.drawPicture is not supported.", null, null /*data*/); + } + + @LayoutlibDelegate + /*package*/ static void finalizer(int nativeCanvas) { + // get the delegate from the native int so that it can be disposed. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nativeCanvas); + if (canvasDelegate == null) { + return; + } + + canvasDelegate.dispose(); + + // remove it from the manager. + sManager.removeJavaReferenceFor(nativeCanvas); + } + + // ---- Private delegate/helper methods ---- + + /** + * Executes a {@link GcSnapshot.Drawable} with a given canvas and paint. + * <p>Note that the drawable may actually be executed several times if there are + * layers involved (see {@link #saveLayer(RectF, int, int)}. + */ + private static void draw(int nCanvas, int nPaint, boolean compositeOnly, boolean forceSrcMode, + GcSnapshot.Drawable drawable) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nCanvas); + if (canvasDelegate == null) { + return; + } + + // get the paint which can be null if nPaint is 0; + Paint_Delegate paintDelegate = Paint_Delegate.getDelegate(nPaint); + + canvasDelegate.getSnapshot().draw(drawable, paintDelegate, compositeOnly, forceSrcMode); + } + + /** + * Executes a {@link GcSnapshot.Drawable} with a given canvas. No paint object will be provided + * to {@link GcSnapshot.Drawable#draw(Graphics2D, Paint_Delegate)}. + * <p>Note that the drawable may actually be executed several times if there are + * layers involved (see {@link #saveLayer(RectF, int, int)}. + */ + private static void draw(int nCanvas, GcSnapshot.Drawable drawable) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nCanvas); + if (canvasDelegate == null) { + return; + } + + canvasDelegate.mSnapshot.draw(drawable); + } + + private Canvas_Delegate(Bitmap_Delegate bitmap) { + mSnapshot = GcSnapshot.createDefaultSnapshot(mBitmap = bitmap); + } + + private Canvas_Delegate() { + mSnapshot = GcSnapshot.createDefaultSnapshot(null /*image*/); + } + + /** + * Disposes of the {@link Graphics2D} stack. + */ + private void dispose() { + mSnapshot.dispose(); + } + + private int save(int saveFlags) { + // get the current save count + int count = mSnapshot.size(); + + mSnapshot = mSnapshot.save(saveFlags); + + // return the old save count + return count; + } + + private int saveLayerAlpha(RectF rect, int alpha, int saveFlags) { + Paint_Delegate paint = new Paint_Delegate(); + paint.setAlpha(alpha); + return saveLayer(rect, paint, saveFlags); + } + + private int saveLayer(RectF rect, Paint_Delegate paint, int saveFlags) { + // get the current save count + int count = mSnapshot.size(); + + mSnapshot = mSnapshot.saveLayer(rect, paint, saveFlags); + + // return the old save count + return count; + } + + /** + * Restores the {@link GcSnapshot} to <var>saveCount</var> + * @param saveCount the saveCount + */ + private void restoreTo(int saveCount) { + mSnapshot = mSnapshot.restoreTo(saveCount); + } + + /** + * Restores the {@link GcSnapshot} to <var>saveCount</var> + * @param saveCount the saveCount + */ + private void restore() { + mSnapshot = mSnapshot.restore(); + } + + private boolean clipRect(float left, float top, float right, float bottom, int regionOp) { + return mSnapshot.clipRect(left, top, right, bottom, regionOp); + } + + private void setBitmap(Bitmap_Delegate bitmap) { + mBitmap = bitmap; + assert mSnapshot.size() == 1; + mSnapshot.setBitmap(mBitmap); + } + + private static void drawBitmap( + int nativeCanvas, + Bitmap_Delegate bitmap, + int nativePaintOrZero, + final int sleft, final int stop, final int sright, final int sbottom, + final int dleft, final int dtop, final int dright, final int dbottom) { + // get the delegate from the native int. + Canvas_Delegate canvasDelegate = sManager.getDelegate(nativeCanvas); + if (canvasDelegate == null) { + return; + } + + // get the paint, which could be null if the int is 0 + Paint_Delegate paintDelegate = Paint_Delegate.getDelegate(nativePaintOrZero); + + final BufferedImage image = getImageToDraw(bitmap, paintDelegate, sBoolOut); + + draw(nativeCanvas, nativePaintOrZero, true /*compositeOnly*/, sBoolOut[0], + new GcSnapshot.Drawable() { + public void draw(Graphics2D graphics, Paint_Delegate paint) { + if (paint != null && paint.isFilterBitmap()) { + graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION, + RenderingHints.VALUE_INTERPOLATION_BILINEAR); + } + + //FIXME add support for canvas, screen and bitmap densities. + graphics.drawImage(image, dleft, dtop, dright, dbottom, + sleft, stop, sright, sbottom, null); + } + }); + } + + + /** + * Returns a BufferedImage ready for drawing, based on the bitmap and paint delegate. + * The image returns, through a 1-size boolean array, whether the drawing code should + * use a SRC composite no matter what the paint says. + * + * @param bitmap the bitmap + * @param paint the paint that will be used to draw + * @param forceSrcMode whether the composite will have to be SRC + * @return the image to draw + */ + private static BufferedImage getImageToDraw(Bitmap_Delegate bitmap, Paint_Delegate paint, + boolean[] forceSrcMode) { + BufferedImage image = bitmap.getImage(); + forceSrcMode[0] = false; + + // if the bitmap config is alpha_8, then we erase all color value from it + // before drawing it. + if (bitmap.getConfig() == Bitmap.Config.ALPHA_8) { + fixAlpha8Bitmap(image); + } else if (bitmap.hasAlpha() == false) { + // hasAlpha is merely a rendering hint. There can in fact be alpha values + // in the bitmap but it should be ignored at drawing time. + // There is two ways to do this: + // - override the composite to be SRC. This can only be used if the composite + // was going to be SRC or SRC_OVER in the first place + // - Create a different bitmap to draw in which all the alpha channel values is set + // to 0xFF. + if (paint != null) { + Xfermode_Delegate xfermodeDelegate = paint.getXfermode(); + if (xfermodeDelegate instanceof PorterDuffXfermode_Delegate) { + PorterDuff.Mode mode = + ((PorterDuffXfermode_Delegate)xfermodeDelegate).getMode(); + + forceSrcMode[0] = mode == PorterDuff.Mode.SRC_OVER || + mode == PorterDuff.Mode.SRC; + } + } + + // if we can't force SRC mode, then create a temp bitmap of TYPE_RGB + if (forceSrcMode[0] == false) { + image = Bitmap_Delegate.createCopy(image, BufferedImage.TYPE_INT_RGB, 0xFF); + } + } + + return image; + } + + private static void fixAlpha8Bitmap(final BufferedImage image) { + int w = image.getWidth(); + int h = image.getHeight(); + int[] argb = new int[w * h]; + image.getRGB(0, 0, image.getWidth(), image.getHeight(), argb, 0, image.getWidth()); + + final int length = argb.length; + for (int i = 0 ; i < length; i++) { + argb[i] &= 0xFF000000; + } + image.setRGB(0, 0, w, h, argb, 0, w); + } +} + |