| /* |
| * Copyright (C) 2008 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.layoutlib.api.ILayoutLog; |
| |
| import android.graphics.DrawFilter; |
| import android.graphics.Picture; |
| import android.graphics.PorterDuff; |
| import android.graphics.Rect; |
| import android.graphics.RectF; |
| import android.graphics.Region; |
| import android.graphics.Xfermode; |
| import android.graphics.Paint.Align; |
| import android.graphics.Paint.FontInfo; |
| import android.graphics.Paint.Style; |
| import android.graphics.Region.Op; |
| |
| import java.awt.AlphaComposite; |
| import java.awt.BasicStroke; |
| import java.awt.Color; |
| import java.awt.Composite; |
| import java.awt.Graphics2D; |
| import java.awt.Rectangle; |
| import java.awt.RenderingHints; |
| import java.awt.geom.AffineTransform; |
| import java.awt.image.BufferedImage; |
| import java.util.List; |
| import java.util.Stack; |
| |
| import javax.microedition.khronos.opengles.GL; |
| |
| /** |
| * Re-implementation of the Canvas, 100% in java on top of a BufferedImage. |
| */ |
| public class Canvas extends _Original_Canvas { |
| |
| private BufferedImage mBufferedImage; |
| private final Stack<Graphics2D> mGraphicsStack = new Stack<Graphics2D>(); |
| private final ILayoutLog mLogger; |
| |
| public Canvas() { |
| mLogger = null; |
| // the mBufferedImage will be taken from a bitmap in #setBitmap() |
| } |
| |
| public Canvas(Bitmap bitmap) { |
| mLogger = null; |
| mBufferedImage = bitmap.getImage(); |
| mGraphicsStack.push(mBufferedImage.createGraphics()); |
| } |
| |
| public Canvas(int nativeCanvas) { |
| mLogger = null; |
| throw new UnsupportedOperationException("Can't create Canvas(int)"); |
| } |
| |
| // custom constructors for our use. |
| public Canvas(int width, int height, ILayoutLog logger) { |
| mLogger = logger; |
| mBufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); |
| mGraphicsStack.push(mBufferedImage.createGraphics()); |
| } |
| |
| public Canvas(int width, int height) { |
| this(width, height, null /* logger*/); |
| } |
| |
| // custom mehtods |
| public BufferedImage getImage() { |
| return mBufferedImage; |
| } |
| |
| public Graphics2D getGraphics2d() { |
| return mGraphicsStack.peek(); |
| } |
| |
| public void dispose() { |
| while (mGraphicsStack.size() > 0) { |
| mGraphicsStack.pop().dispose(); |
| } |
| } |
| |
| /** |
| * Creates a new {@link Graphics2D} based on the {@link Paint} parameters. |
| * <p/>The object must be disposed ({@link Graphics2D#dispose()}) after being used. |
| */ |
| private Graphics2D getCustomGraphics(Paint paint) { |
| // make new one |
| Graphics2D g = getGraphics2d(); |
| g = (Graphics2D)g.create(); |
| |
| // configure it |
| g.setColor(new Color(paint.getColor())); |
| int alpha = paint.getAlpha(); |
| float falpha = alpha / 255.f; |
| |
| Style style = paint.getStyle(); |
| if (style == Style.STROKE || style == Style.FILL_AND_STROKE) { |
| PathEffect e = paint.getPathEffect(); |
| if (e instanceof DashPathEffect) { |
| DashPathEffect dpe = (DashPathEffect)e; |
| g.setStroke(new BasicStroke( |
| paint.getStrokeWidth(), |
| paint.getStrokeCap().getJavaCap(), |
| paint.getStrokeJoin().getJavaJoin(), |
| paint.getStrokeMiter(), |
| dpe.getIntervals(), |
| dpe.getPhase())); |
| } else { |
| g.setStroke(new BasicStroke( |
| paint.getStrokeWidth(), |
| paint.getStrokeCap().getJavaCap(), |
| paint.getStrokeJoin().getJavaJoin(), |
| paint.getStrokeMiter())); |
| } |
| } |
| |
| Xfermode xfermode = paint.getXfermode(); |
| if (xfermode instanceof PorterDuffXfermode) { |
| PorterDuff.Mode mode = ((PorterDuffXfermode)xfermode).getMode(); |
| |
| setModeInGraphics(mode, g, falpha); |
| } else { |
| if (mLogger != null && xfermode != null) { |
| mLogger.warning(String.format( |
| "Xfermode '%1$s' is not supported in the Layout Editor.", |
| xfermode.getClass().getCanonicalName())); |
| } |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, falpha)); |
| } |
| |
| Shader shader = paint.getShader(); |
| if (shader != null) { |
| java.awt.Paint shaderPaint = shader.getJavaPaint(); |
| if (shaderPaint != null) { |
| g.setPaint(shaderPaint); |
| } else { |
| if (mLogger != null) { |
| mLogger.warning(String.format( |
| "Shader '%1$s' is not supported in the Layout Editor.", |
| shader.getClass().getCanonicalName())); |
| } |
| } |
| } |
| |
| return g; |
| } |
| |
| private void setModeInGraphics(PorterDuff.Mode mode, Graphics2D g, float falpha) { |
| switch (mode) { |
| case CLEAR: |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.CLEAR, falpha)); |
| break; |
| case DARKEN: |
| break; |
| case DST: |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.DST, falpha)); |
| break; |
| case DST_ATOP: |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.DST_ATOP, falpha)); |
| break; |
| case DST_IN: |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.DST_IN, falpha)); |
| break; |
| case DST_OUT: |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.DST_OUT, falpha)); |
| break; |
| case DST_OVER: |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.DST_OVER, falpha)); |
| break; |
| case LIGHTEN: |
| break; |
| case MULTIPLY: |
| break; |
| case SCREEN: |
| break; |
| case SRC: |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC, falpha)); |
| break; |
| case SRC_ATOP: |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, falpha)); |
| break; |
| case SRC_IN: |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_IN, falpha)); |
| break; |
| case SRC_OUT: |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OUT, falpha)); |
| break; |
| case SRC_OVER: |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, falpha)); |
| break; |
| case XOR: |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.XOR, falpha)); |
| break; |
| } |
| } |
| |
| |
| // -------------------- |
| // OVERRIDEN ENUMS |
| // This is needed since we rename Canvas into _Original_Canvas |
| // -------------------- |
| |
| public enum EdgeType { |
| BW(0), //!< treat edges by just rounding to nearest pixel boundary |
| AA(1); //!< treat edges by rounding-out, since they may be antialiased |
| |
| EdgeType(int nativeInt) { |
| this.nativeInt = nativeInt; |
| } |
| final int nativeInt; |
| } |
| |
| |
| // -------------------- |
| // OVERRIDEN METHODS |
| // -------------------- |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#setBitmap(android.graphics.Bitmap) |
| */ |
| @Override |
| public void setBitmap(Bitmap bitmap) { |
| mBufferedImage = bitmap.getImage(); |
| mGraphicsStack.push(mBufferedImage.createGraphics()); |
| } |
| |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#translate(float, float) |
| */ |
| @Override |
| public void translate(float dx, float dy) { |
| getGraphics2d().translate(dx, dy); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#save() |
| */ |
| @Override |
| public int save() { |
| // get the current save count |
| int count = mGraphicsStack.size(); |
| |
| // create a new graphics and add it to the stack |
| Graphics2D g = (Graphics2D)getGraphics2d().create(); |
| mGraphicsStack.push(g); |
| |
| // return the old save count |
| return count; |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#save(int) |
| */ |
| @Override |
| public int save(int saveFlags) { |
| // For now we ignore saveFlags |
| return save(); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#restore() |
| */ |
| @Override |
| public void restore() { |
| mGraphicsStack.pop(); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#restoreToCount(int) |
| */ |
| @Override |
| public void restoreToCount(int saveCount) { |
| while (mGraphicsStack.size() > saveCount) { |
| mGraphicsStack.pop(); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#getSaveCount() |
| */ |
| @Override |
| public int getSaveCount() { |
| return mGraphicsStack.size(); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#clipRect(float, float, float, float, android.graphics.Region.Op) |
| */ |
| @Override |
| public boolean clipRect(float left, float top, float right, float bottom, Op op) { |
| return clipRect(left, top, right, bottom); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#clipRect(float, float, float, float) |
| */ |
| @Override |
| public boolean clipRect(float left, float top, float right, float bottom) { |
| getGraphics2d().clipRect((int)left, (int)top, (int)(right-left), (int)(bottom-top)); |
| return true; |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#clipRect(int, int, int, int) |
| */ |
| @Override |
| public boolean clipRect(int left, int top, int right, int bottom) { |
| getGraphics2d().clipRect(left, top, right-left, bottom-top); |
| return true; |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#clipRect(android.graphics.Rect, android.graphics.Region.Op) |
| */ |
| @Override |
| public boolean clipRect(Rect rect, Op op) { |
| return clipRect(rect.left, rect.top, rect.right, rect.bottom); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#clipRect(android.graphics.Rect) |
| */ |
| @Override |
| public boolean clipRect(Rect rect) { |
| return clipRect(rect.left, rect.top, rect.right, rect.bottom); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#clipRect(android.graphics.RectF, android.graphics.Region.Op) |
| */ |
| @Override |
| public boolean clipRect(RectF rect, Op op) { |
| return clipRect(rect.left, rect.top, rect.right, rect.bottom); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#clipRect(android.graphics.RectF) |
| */ |
| @Override |
| public boolean clipRect(RectF rect) { |
| return clipRect(rect.left, rect.top, rect.right, rect.bottom); |
| } |
| |
| public boolean quickReject(RectF rect, EdgeType type) { |
| return false; |
| } |
| |
| @Override |
| public boolean quickReject(RectF rect, _Original_Canvas.EdgeType type) { |
| throw new UnsupportedOperationException("CALL TO PARENT FORBIDDEN"); |
| } |
| |
| public boolean quickReject(Path path, EdgeType type) { |
| return false; |
| } |
| |
| @Override |
| public boolean quickReject(Path path, _Original_Canvas.EdgeType type) { |
| throw new UnsupportedOperationException("CALL TO PARENT FORBIDDEN"); |
| } |
| |
| public boolean quickReject(float left, float top, float right, float bottom, |
| EdgeType type) { |
| return false; |
| } |
| |
| @Override |
| public boolean quickReject(float left, float top, float right, float bottom, |
| _Original_Canvas.EdgeType type) { |
| throw new UnsupportedOperationException("CALL TO PARENT FORBIDDEN"); |
| } |
| |
| /** |
| * Retrieve the clip bounds, returning true if they are non-empty. |
| * |
| * @param bounds Return the clip bounds here. If it is null, ignore it but |
| * still return true if the current clip is non-empty. |
| * @return true if the current clip is non-empty. |
| */ |
| @Override |
| public boolean getClipBounds(Rect bounds) { |
| Rectangle rect = getGraphics2d().getClipBounds(); |
| if (rect != null) { |
| bounds.left = rect.x; |
| bounds.top = rect.y; |
| bounds.right = rect.x + rect.width; |
| bounds.bottom = rect.y + rect.height; |
| return true; |
| } |
| return false; |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawColor(int, android.graphics.PorterDuff.Mode) |
| */ |
| @Override |
| public void drawColor(int color, PorterDuff.Mode mode) { |
| Graphics2D g = getGraphics2d(); |
| |
| // save old color |
| Color c = g.getColor(); |
| |
| Composite composite = g.getComposite(); |
| |
| // get the alpha from the color |
| int alpha = color >>> 24; |
| float falpha = alpha / 255.f; |
| |
| setModeInGraphics(mode, g, falpha); |
| |
| g.setColor(new Color(color)); |
| |
| g.fillRect(0, 0, getWidth(), getHeight()); |
| |
| g.setComposite(composite); |
| |
| // restore color |
| g.setColor(c); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawColor(int) |
| */ |
| @Override |
| public void drawColor(int color) { |
| drawColor(color, PorterDuff.Mode.SRC_OVER); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawARGB(int, int, int, int) |
| */ |
| @Override |
| public void drawARGB(int a, int r, int g, int b) { |
| drawColor(a << 24 | r << 16 | g << 8 | b, PorterDuff.Mode.SRC_OVER); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawRGB(int, int, int) |
| */ |
| @Override |
| public void drawRGB(int r, int g, int b) { |
| drawColor(0xFF << 24 | r << 16 | g << 8 | b, PorterDuff.Mode.SRC_OVER); |
| } |
| |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#getWidth() |
| */ |
| @Override |
| public int getWidth() { |
| return mBufferedImage.getWidth(); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#getHeight() |
| */ |
| @Override |
| public int getHeight() { |
| return mBufferedImage.getHeight(); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawPaint(android.graphics.Paint) |
| */ |
| @Override |
| public void drawPaint(Paint paint) { |
| drawColor(paint.getColor()); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawBitmap(android.graphics.Bitmap, float, float, android.graphics.Paint) |
| */ |
| @Override |
| public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { |
| drawBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), |
| (int)left, (int)top, |
| (int)left+bitmap.getWidth(), (int)top+bitmap.getHeight(), paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawBitmap(android.graphics.Bitmap, android.graphics.Matrix, android.graphics.Paint) |
| */ |
| @Override |
| public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { |
| boolean needsRestore = false; |
| if (matrix.isIdentity() == false) { |
| // create a new graphics and apply the matrix to it |
| save(); // this creates a new Graphics2D, and stores it for children call to use |
| needsRestore = true; |
| Graphics2D g = getGraphics2d(); // get the newly create Graphics2D |
| |
| // get the Graphics2D current matrix |
| AffineTransform currentTx = g.getTransform(); |
| // get the AffineTransform from the matrix |
| AffineTransform matrixTx = matrix.getTransform(); |
| |
| // combine them so that the matrix is applied after. |
| currentTx.preConcatenate(matrixTx); |
| |
| // give it to the graphics as a new matrix replacing all previous transform |
| g.setTransform(currentTx); |
| } |
| |
| // draw the bitmap |
| drawBitmap(bitmap, 0, 0, paint); |
| |
| if (needsRestore) { |
| // remove the new graphics |
| restore(); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawBitmap(android.graphics.Bitmap, android.graphics.Rect, android.graphics.Rect, android.graphics.Paint) |
| */ |
| @Override |
| public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { |
| if (src == null) { |
| drawBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), |
| dst.left, dst.top, dst.right, dst.bottom, paint); |
| } else { |
| drawBitmap(bitmap, src.left, src.top, src.width(), src.height(), |
| dst.left, dst.top, dst.right, dst.bottom, paint); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawBitmap(android.graphics.Bitmap, android.graphics.Rect, android.graphics.RectF, android.graphics.Paint) |
| */ |
| @Override |
| public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { |
| if (src == null) { |
| drawBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), |
| (int)dst.left, (int)dst.top, (int)dst.right, (int)dst.bottom, paint); |
| } else { |
| drawBitmap(bitmap, src.left, src.top, src.width(), src.height(), |
| (int)dst.left, (int)dst.top, (int)dst.right, (int)dst.bottom, paint); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawBitmap(int[], int, int, int, int, int, int, boolean, android.graphics.Paint) |
| */ |
| @Override |
| public void drawBitmap(int[] colors, int offset, int stride, int x, int y, int width, |
| int height, boolean hasAlpha, Paint paint) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| private void drawBitmap(Bitmap bitmap, int sleft, int stop, int sright, int sbottom, int dleft, |
| int dtop, int dright, int dbottom, Paint paint) { |
| BufferedImage image = bitmap.getImage(); |
| |
| Graphics2D g = getGraphics2d(); |
| |
| Composite c = null; |
| |
| if (paint != null) { |
| if (paint.isFilterBitmap()) { |
| g = (Graphics2D)g.create(); |
| g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, |
| RenderingHints.VALUE_INTERPOLATION_BILINEAR); |
| } |
| |
| if (paint.getAlpha() != 0xFF) { |
| c = g.getComposite(); |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, |
| paint.getAlpha()/255.f)); |
| } |
| } |
| |
| g.drawImage(image, dleft, dtop, dright, dbottom, |
| sleft, stop, sright, sbottom, null); |
| |
| if (paint != null) { |
| if (paint.isFilterBitmap()) { |
| g.dispose(); |
| } |
| if (c != null) { |
| g.setComposite(c); |
| } |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#rotate(float, float, float) |
| */ |
| @Override |
| public void rotate(float degrees, float px, float py) { |
| if (degrees != 0) { |
| Graphics2D g = getGraphics2d(); |
| g.translate(px, py); |
| g.rotate(Math.toRadians(degrees)); |
| g.translate(-px, -py); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#rotate(float) |
| */ |
| @Override |
| public void rotate(float degrees) { |
| getGraphics2d().rotate(Math.toRadians(degrees)); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#scale(float, float, float, float) |
| */ |
| @Override |
| public void scale(float sx, float sy, float px, float py) { |
| Graphics2D g = getGraphics2d(); |
| g.translate(px, py); |
| g.scale(sx, sy); |
| g.translate(-px, -py); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#scale(float, float) |
| */ |
| @Override |
| public void scale(float sx, float sy) { |
| getGraphics2d().scale(sx, sy); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawText(char[], int, int, float, float, android.graphics.Paint) |
| */ |
| @Override |
| public void drawText(char[] text, int index, int count, float x, float y, Paint paint) { |
| // WARNING: the logic in this method is similar to Paint.measureText. |
| // Any change to this method should be reflected in Paint.measureText |
| Graphics2D g = getGraphics2d(); |
| |
| g = (Graphics2D)g.create(); |
| g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); |
| |
| // set the color. because this only handles RGB, the alpha channel is handled |
| // as a composite. |
| g.setColor(new Color(paint.getColor())); |
| int alpha = paint.getAlpha(); |
| float falpha = alpha / 255.f; |
| g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, falpha)); |
| |
| |
| // Paint.TextAlign indicates how the text is positioned relative to X. |
| // LEFT is the default and there's nothing to do. |
| if (paint.getTextAlign() != Align.LEFT) { |
| float m = paint.measureText(text, index, count); |
| if (paint.getTextAlign() == Align.CENTER) { |
| x -= m / 2; |
| } else if (paint.getTextAlign() == Align.RIGHT) { |
| x -= m; |
| } |
| } |
| |
| List<FontInfo> fonts = paint.getFonts(); |
| try { |
| 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. |
| g.setFont(mainFont.mFont); |
| g.drawChars(text, i, lastIndex - i, (int)x, (int)y); |
| return; |
| } else if (upTo > 0) { |
| // draw what's possible |
| g.setFont(mainFont.mFont); |
| g.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 |
| g.setFont(fontInfo.mFont); |
| g.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; |
| |
| g.setFont(mainFont.mFont); |
| g.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; |
| } |
| } |
| } |
| } finally { |
| g.dispose(); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawText(java.lang.CharSequence, int, int, float, float, android.graphics.Paint) |
| */ |
| @Override |
| public void drawText(CharSequence text, int start, int end, float x, float y, Paint paint) { |
| drawText(text.toString().toCharArray(), start, end - start, x, y, paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawText(java.lang.String, float, float, android.graphics.Paint) |
| */ |
| @Override |
| public void drawText(String text, float x, float y, Paint paint) { |
| drawText(text.toCharArray(), 0, text.length(), x, y, paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawText(java.lang.String, int, int, float, float, android.graphics.Paint) |
| */ |
| @Override |
| public void drawText(String text, int start, int end, float x, float y, Paint paint) { |
| drawText(text.toCharArray(), start, end - start, x, y, paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawRect(android.graphics.RectF, android.graphics.Paint) |
| */ |
| @Override |
| public void drawRect(RectF rect, Paint paint) { |
| doDrawRect((int)rect.left, (int)rect.top, (int)rect.width(), (int)rect.height(), paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawRect(float, float, float, float, android.graphics.Paint) |
| */ |
| @Override |
| public void drawRect(float left, float top, float right, float bottom, Paint paint) { |
| doDrawRect((int)left, (int)top, (int)(right-left), (int)(bottom-top), paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawRect(android.graphics.Rect, android.graphics.Paint) |
| */ |
| @Override |
| public void drawRect(Rect r, Paint paint) { |
| doDrawRect(r.left, r.top, r.width(), r.height(), paint); |
| } |
| |
| private final void doDrawRect(int left, int top, int width, int height, Paint paint) { |
| if (width > 0 && height > 0) { |
| // get a Graphics2D object configured with the drawing parameters. |
| Graphics2D g = getCustomGraphics(paint); |
| |
| Style style = paint.getStyle(); |
| |
| // draw |
| if (style == Style.FILL || style == Style.FILL_AND_STROKE) { |
| g.fillRect(left, top, width, height); |
| } |
| |
| if (style == Style.STROKE || style == Style.FILL_AND_STROKE) { |
| g.drawRect(left, top, width, height); |
| } |
| |
| // dispose Graphics2D object |
| g.dispose(); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawRoundRect(android.graphics.RectF, float, float, android.graphics.Paint) |
| */ |
| @Override |
| public void drawRoundRect(RectF rect, float rx, float ry, Paint paint) { |
| if (rect.width() > 0 && rect.height() > 0) { |
| // get a Graphics2D object configured with the drawing parameters. |
| Graphics2D g = getCustomGraphics(paint); |
| |
| Style style = paint.getStyle(); |
| |
| // draw |
| |
| int arcWidth = (int)(rx * 2); |
| int arcHeight = (int)(ry * 2); |
| |
| if (style == Style.FILL || style == Style.FILL_AND_STROKE) { |
| g.fillRoundRect((int)rect.left, (int)rect.top, (int)rect.width(), (int)rect.height(), |
| arcWidth, arcHeight); |
| } |
| |
| if (style == Style.STROKE || style == Style.FILL_AND_STROKE) { |
| g.drawRoundRect((int)rect.left, (int)rect.top, (int)rect.width(), (int)rect.height(), |
| arcWidth, arcHeight); |
| } |
| |
| // dispose Graphics2D object |
| g.dispose(); |
| } |
| } |
| |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawLine(float, float, float, float, android.graphics.Paint) |
| */ |
| @Override |
| public void drawLine(float startX, float startY, float stopX, float stopY, Paint paint) { |
| // get a Graphics2D object configured with the drawing parameters. |
| Graphics2D g = getCustomGraphics(paint); |
| |
| g.drawLine((int)startX, (int)startY, (int)stopX, (int)stopY); |
| |
| // dispose Graphics2D object |
| g.dispose(); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawLines(float[], int, int, android.graphics.Paint) |
| */ |
| @Override |
| public void drawLines(float[] pts, int offset, int count, Paint paint) { |
| // get a Graphics2D object configured with the drawing parameters. |
| Graphics2D g = getCustomGraphics(paint); |
| |
| for (int i = 0 ; i < count ; i += 4) { |
| g.drawLine((int)pts[i + offset], (int)pts[i + offset + 1], |
| (int)pts[i + offset + 2], (int)pts[i + offset + 3]); |
| } |
| |
| // dispose Graphics2D object |
| g.dispose(); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawLines(float[], android.graphics.Paint) |
| */ |
| @Override |
| public void drawLines(float[] pts, Paint paint) { |
| drawLines(pts, 0, pts.length, paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawCircle(float, float, float, android.graphics.Paint) |
| */ |
| @Override |
| public void drawCircle(float cx, float cy, float radius, Paint paint) { |
| // get a Graphics2D object configured with the drawing parameters. |
| Graphics2D g = getCustomGraphics(paint); |
| |
| Style style = paint.getStyle(); |
| |
| int size = (int)(radius * 2); |
| |
| // draw |
| if (style == Style.FILL || style == Style.FILL_AND_STROKE) { |
| g.fillOval((int)(cx - radius), (int)(cy - radius), size, size); |
| } |
| |
| if (style == Style.STROKE || style == Style.FILL_AND_STROKE) { |
| g.drawOval((int)(cx - radius), (int)(cy - radius), size, size); |
| } |
| |
| // dispose Graphics2D object |
| g.dispose(); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawOval(android.graphics.RectF, android.graphics.Paint) |
| */ |
| @Override |
| public void drawOval(RectF oval, Paint paint) { |
| // get a Graphics2D object configured with the drawing parameters. |
| Graphics2D g = getCustomGraphics(paint); |
| |
| Style style = paint.getStyle(); |
| |
| // draw |
| if (style == Style.FILL || style == Style.FILL_AND_STROKE) { |
| g.fillOval((int)oval.left, (int)oval.top, (int)oval.width(), (int)oval.height()); |
| } |
| |
| if (style == Style.STROKE || style == Style.FILL_AND_STROKE) { |
| g.drawOval((int)oval.left, (int)oval.top, (int)oval.width(), (int)oval.height()); |
| } |
| |
| // dispose Graphics2D object |
| g.dispose(); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawPath(android.graphics.Path, android.graphics.Paint) |
| */ |
| @Override |
| public void drawPath(Path path, Paint paint) { |
| // get a Graphics2D object configured with the drawing parameters. |
| Graphics2D g = getCustomGraphics(paint); |
| |
| Style style = paint.getStyle(); |
| |
| // draw |
| if (style == Style.FILL || style == Style.FILL_AND_STROKE) { |
| g.fill(path.getAwtShape()); |
| } |
| |
| if (style == Style.STROKE || style == Style.FILL_AND_STROKE) { |
| g.draw(path.getAwtShape()); |
| } |
| |
| // dispose Graphics2D object |
| g.dispose(); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#setMatrix(android.graphics.Matrix) |
| */ |
| @Override |
| public void setMatrix(Matrix matrix) { |
| // get the new current graphics |
| Graphics2D g = getGraphics2d(); |
| |
| // and apply the matrix |
| g.setTransform(matrix.getTransform()); |
| |
| if (mLogger != null && matrix.hasPerspective()) { |
| mLogger.warning("android.graphics.Canvas#setMatrix(android.graphics.Matrix) only supports affine transformations in the Layout Editor."); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#concat(android.graphics.Matrix) |
| */ |
| @Override |
| public void concat(Matrix matrix) { |
| // get the current top graphics2D object. |
| Graphics2D g = getGraphics2d(); |
| |
| // get its current matrix |
| AffineTransform currentTx = g.getTransform(); |
| // get the AffineTransform of the given matrix |
| AffineTransform matrixTx = matrix.getTransform(); |
| |
| // 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); |
| } |
| |
| |
| // -------------------- |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#clipPath(android.graphics.Path, android.graphics.Region.Op) |
| */ |
| @Override |
| public boolean clipPath(Path path, Op op) { |
| // TODO Auto-generated method stub |
| return super.clipPath(path, op); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#clipPath(android.graphics.Path) |
| */ |
| @Override |
| public boolean clipPath(Path path) { |
| // TODO Auto-generated method stub |
| return super.clipPath(path); |
| } |
| |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#clipRegion(android.graphics.Region, android.graphics.Region.Op) |
| */ |
| @Override |
| public boolean clipRegion(Region region, Op op) { |
| // TODO Auto-generated method stub |
| return super.clipRegion(region, op); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#clipRegion(android.graphics.Region) |
| */ |
| @Override |
| public boolean clipRegion(Region region) { |
| // TODO Auto-generated method stub |
| return super.clipRegion(region); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawArc(android.graphics.RectF, float, float, boolean, android.graphics.Paint) |
| */ |
| @Override |
| public void drawArc(RectF oval, float startAngle, float sweepAngle, boolean useCenter, |
| Paint paint) { |
| // TODO Auto-generated method stub |
| super.drawArc(oval, startAngle, sweepAngle, useCenter, paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawBitmapMesh(android.graphics.Bitmap, int, int, float[], int, int[], int, android.graphics.Paint) |
| */ |
| @Override |
| public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, float[] verts, |
| int vertOffset, int[] colors, int colorOffset, Paint paint) { |
| // TODO Auto-generated method stub |
| super.drawBitmapMesh(bitmap, meshWidth, meshHeight, verts, vertOffset, colors, colorOffset, paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawPicture(android.graphics.Picture, android.graphics.Rect) |
| */ |
| @Override |
| public void drawPicture(Picture picture, Rect dst) { |
| // TODO Auto-generated method stub |
| super.drawPicture(picture, dst); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawPicture(android.graphics.Picture, android.graphics.RectF) |
| */ |
| @Override |
| public void drawPicture(Picture picture, RectF dst) { |
| // TODO Auto-generated method stub |
| super.drawPicture(picture, dst); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawPicture(android.graphics.Picture) |
| */ |
| @Override |
| public void drawPicture(Picture picture) { |
| // TODO Auto-generated method stub |
| super.drawPicture(picture); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawPoint(float, float, android.graphics.Paint) |
| */ |
| @Override |
| public void drawPoint(float x, float y, Paint paint) { |
| // TODO Auto-generated method stub |
| super.drawPoint(x, y, paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawPoints(float[], int, int, android.graphics.Paint) |
| */ |
| @Override |
| public void drawPoints(float[] pts, int offset, int count, Paint paint) { |
| // TODO Auto-generated method stub |
| super.drawPoints(pts, offset, count, paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawPoints(float[], android.graphics.Paint) |
| */ |
| @Override |
| public void drawPoints(float[] pts, Paint paint) { |
| // TODO Auto-generated method stub |
| super.drawPoints(pts, paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawPosText(char[], int, int, float[], android.graphics.Paint) |
| */ |
| @Override |
| public void drawPosText(char[] text, int index, int count, float[] pos, Paint paint) { |
| // TODO Auto-generated method stub |
| super.drawPosText(text, index, count, pos, paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawPosText(java.lang.String, float[], android.graphics.Paint) |
| */ |
| @Override |
| public void drawPosText(String text, float[] pos, Paint paint) { |
| // TODO Auto-generated method stub |
| super.drawPosText(text, pos, paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawTextOnPath(char[], int, int, android.graphics.Path, float, float, android.graphics.Paint) |
| */ |
| @Override |
| public void drawTextOnPath(char[] text, int index, int count, Path path, float offset, |
| float offset2, Paint paint) { |
| // TODO Auto-generated method stub |
| super.drawTextOnPath(text, index, count, path, offset, offset2, paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawTextOnPath(java.lang.String, android.graphics.Path, float, float, android.graphics.Paint) |
| */ |
| @Override |
| public void drawTextOnPath(String text, Path path, float offset, float offset2, Paint paint) { |
| // TODO Auto-generated method stub |
| super.drawTextOnPath(text, path, offset, offset2, paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#drawVertices(android.graphics.Canvas.VertexMode, int, float[], int, float[], int, int[], int, short[], int, int, android.graphics.Paint) |
| */ |
| @Override |
| public void drawVertices(VertexMode mode, int vertexCount, float[] verts, int vertOffset, |
| float[] texs, int texOffset, int[] colors, int colorOffset, short[] indices, |
| int indexOffset, int indexCount, Paint paint) { |
| // TODO Auto-generated method stub |
| super.drawVertices(mode, vertexCount, verts, vertOffset, texs, texOffset, colors, colorOffset, |
| indices, indexOffset, indexCount, paint); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#getDrawFilter() |
| */ |
| @Override |
| public DrawFilter getDrawFilter() { |
| // TODO Auto-generated method stub |
| return super.getDrawFilter(); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#getMatrix() |
| */ |
| @Override |
| public Matrix getMatrix() { |
| // TODO Auto-generated method stub |
| return super.getMatrix(); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#getMatrix(android.graphics.Matrix) |
| */ |
| @Override |
| public void getMatrix(Matrix ctm) { |
| // TODO Auto-generated method stub |
| super.getMatrix(ctm); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#isOpaque() |
| */ |
| @Override |
| public boolean isOpaque() { |
| // TODO Auto-generated method stub |
| return super.isOpaque(); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#saveLayer(float, float, float, float, android.graphics.Paint, int) |
| */ |
| @Override |
| public int saveLayer(float left, float top, float right, float bottom, Paint paint, |
| int saveFlags) { |
| // TODO Auto-generated method stub |
| return super.saveLayer(left, top, right, bottom, paint, saveFlags); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#saveLayer(android.graphics.RectF, android.graphics.Paint, int) |
| */ |
| @Override |
| public int saveLayer(RectF bounds, Paint paint, int saveFlags) { |
| // TODO Auto-generated method stub |
| return super.saveLayer(bounds, paint, saveFlags); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#saveLayerAlpha(float, float, float, float, int, int) |
| */ |
| @Override |
| public int saveLayerAlpha(float left, float top, float right, float bottom, int alpha, |
| int saveFlags) { |
| // TODO Auto-generated method stub |
| return super.saveLayerAlpha(left, top, right, bottom, alpha, saveFlags); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#saveLayerAlpha(android.graphics.RectF, int, int) |
| */ |
| @Override |
| public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { |
| // TODO Auto-generated method stub |
| return super.saveLayerAlpha(bounds, alpha, saveFlags); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#setDrawFilter(android.graphics.DrawFilter) |
| */ |
| @Override |
| public void setDrawFilter(DrawFilter filter) { |
| // TODO Auto-generated method stub |
| super.setDrawFilter(filter); |
| } |
| |
| /* (non-Javadoc) |
| * @see android.graphics.Canvas#skew(float, float) |
| */ |
| @Override |
| public void skew(float sx, float sy) { |
| // TODO Auto-generated method stub |
| super.skew(sx, sy); |
| } |
| |
| |
| |
| } |