List of usage examples for android.graphics Canvas setBitmap
public void setBitmap(@Nullable Bitmap bitmap)
From source file:Main.java
public static byte[] makeFontBitmap(String font, String code, int size, float[] arrayOfPos) { Log.v(TAG, String.format("makeFontBitmap called(Java): font=%s code=%s", font, code)); Canvas c = new Canvas(); Paint p = new Paint(); // Log.v(TAG, "get density"); float density = context.getResources().getDisplayMetrics().density; Log.v(TAG, String.format("makeFontBitmap density: %f", density)); p.setTextSize((float) size * density); p.setAntiAlias(true);//from www. jav a 2 s. c o m Rect textBounds = new Rect(); p.getTextBounds(code, 0, code.length(), textBounds); Log.v(TAG, String.format("makeFontBitmap textBounds: %d,%d,%d,%d", textBounds.left, textBounds.top, textBounds.right, textBounds.bottom)); Rect textBoundsAxA = new Rect(); String axa = String.format("A%sA", code); p.getTextBounds(axa, 0, axa.length(), textBoundsAxA); Rect textBoundsAA = new Rect(); String aa = "AA"; p.getTextBounds(aa, 0, aa.length(), textBoundsAA); // cache.distDelta = Vec2(0, 0); arrayOfPos[0] = textBounds.left; arrayOfPos[1] = textBounds.top; // cache.srcWidth = Vec2(16, 16); arrayOfPos[2] = textBounds.width(); arrayOfPos[3] = textBounds.height(); // cache.step = 16; // arrayOfPos[4] = textBounds.width() + 1; arrayOfPos[4] = textBoundsAxA.width() - textBoundsAA.width(); if (textBounds.width() == 0 || textBounds.height() == 0) { Log.v(TAG, "makeFontBitmap: empty"); return null; } Bitmap b = Bitmap.createBitmap(textBounds.width(), textBounds.height(), Bitmap.Config.ARGB_8888); c.setBitmap(b); Rect r = new Rect(0, 0, textBounds.width(), textBounds.height()); // p.setColor(Color.RED); p.setARGB(0, 0, 0, 0); c.drawRect(r, p); p.setARGB(255, 255, 255, 255); // Log.v(TAG, "makeFontBitmap: drawText"); c.drawText(code, -textBounds.left, -textBounds.top, p); Log.v(TAG, String.format("makeFontBitmap: w=%.2f h=%.2f", arrayOfPos[2], arrayOfPos[3])); ByteBuffer buf = ByteBuffer.allocate(textBounds.width() * textBounds.height() * 4); // ByteBuffer buf = ByteBuffer.allocate(b.getRowBytes()); Log.v(TAG, String.format("makeFontBitmap: b.getRowBytes() %d", b.getRowBytes())); buf.position(0); b.copyPixelsToBuffer(buf); Log.v(TAG, String.format("makeFontBitmap results: capacity=%d", buf.capacity())); // byte bytes[] = buf.array(); // for (int i = 0; i < size * size * 2; i++) // bytes[i] = (byte)(Math.random() * 255); return buf.array(); }
From source file:com.android.leanlauncher.IconCache.java
private Bitmap makeDefaultIcon(UserHandleCompat user) { Drawable unbadged = getFullResDefaultActivityIcon(); Drawable d = mUserManager.getBadgedDrawableForUser(unbadged, user); Bitmap b = Bitmap.createBitmap(Math.max(d.getIntrinsicWidth(), 1), Math.max(d.getIntrinsicHeight(), 1), Bitmap.Config.ARGB_8888);//from w w w . j a v a 2 s .c om Canvas c = new Canvas(b); d.setBounds(0, 0, b.getWidth(), b.getHeight()); d.draw(c); c.setBitmap(null); return b; }
From source file:com.android.leanlauncher.WidgetPreviewLoader.java
public Bitmap getPreview(final Object o) { final String name = getObjectName(o); final String packageName = getObjectPackage(o); // check if the package is valid synchronized (sInvalidPackages) { boolean packageValid = !sInvalidPackages.contains(packageName); if (!packageValid) { return null; }/*from w ww. j av a 2 s . c om*/ } synchronized (mLoadedPreviews) { // check if it exists in our existing cache if (mLoadedPreviews.containsKey(name)) { WeakReference<Bitmap> bitmapReference = mLoadedPreviews.get(name); Bitmap bitmap = bitmapReference.get(); if (bitmap != null) { return bitmap; } } } Bitmap unusedBitmap = null; synchronized (mUnusedBitmaps) { // not in cache; we need to load it from the db while (unusedBitmap == null && mUnusedBitmaps.size() > 0) { Bitmap candidate = mUnusedBitmaps.remove(0).get(); if (candidate != null && candidate.isMutable() && candidate.getWidth() == mPreviewBitmapWidth && candidate.getHeight() == mPreviewBitmapHeight) { unusedBitmap = candidate; } } if (unusedBitmap != null) { final Canvas c = mCachedAppWidgetPreviewCanvas.get(); c.setBitmap(unusedBitmap); c.drawColor(0, PorterDuff.Mode.CLEAR); c.setBitmap(null); } } if (unusedBitmap == null) { unusedBitmap = Bitmap.createBitmap(mPreviewBitmapWidth, mPreviewBitmapHeight, Bitmap.Config.ARGB_8888); } Bitmap preview = readFromDb(name, unusedBitmap); if (preview != null) { synchronized (mLoadedPreviews) { mLoadedPreviews.put(name, new WeakReference<Bitmap>(preview)); } return preview; } else { // it's not in the db... we need to generate it final Bitmap generatedPreview = generatePreview(o, unusedBitmap); preview = generatedPreview; if (preview != unusedBitmap) { throw new RuntimeException("generatePreview is not recycling the bitmap " + o); } synchronized (mLoadedPreviews) { mLoadedPreviews.put(name, new WeakReference<Bitmap>(preview)); } // write to db on a thread pool... this can be done lazily and improves the performance // of the first time widget previews are loaded new AsyncTask<Void, Void, Void>() { public Void doInBackground(Void... args) { writeToDb(o, generatedPreview); return null; } }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); return preview; } }
From source file:cz.maresmar.sfm.view.user.UserDetailFragment.java
/** * Transform any Drawable to bitmap/*from w w w .j a va2 s.c o m*/ * <p> * taken from https://stackoverflow.com/a/35574775/1392034 * * @param drawable Input Drawable * @return Transformed Bitmap */ private Bitmap getBitmap(@NonNull Drawable drawable) { Canvas canvas = new Canvas(); int imageSize = getResources().getDimensionPixelSize(R.dimen.user_image_size); Bitmap bitmap = Bitmap.createBitmap(imageSize, imageSize, Bitmap.Config.ARGB_8888); canvas.setBitmap(bitmap); drawable.setBounds(0, 0, imageSize, imageSize); drawable.draw(canvas); return bitmap; }
From source file:com.android.leanlauncher.WidgetPreviewLoader.java
public Bitmap generateWidgetPreview(AppWidgetProviderInfo info, int cellHSpan, int cellVSpan, int maxPreviewWidth, int maxPreviewHeight, Bitmap preview, int[] preScaledWidthOut) { // Load the preview image if possible if (maxPreviewWidth < 0) maxPreviewWidth = Integer.MAX_VALUE; Drawable drawable = null;//www. ja v a 2 s . co m if (info.previewImage != 0) { drawable = mManager.loadPreview(info); if (drawable != null) { drawable = mutateOnMainThread(drawable); } else { Log.w(TAG, "Can't load widget preview drawable 0x" + Integer.toHexString(info.previewImage) + " for provider: " + info.provider); } } int previewWidth; int previewHeight; Bitmap defaultPreview = null; boolean widgetPreviewExists = (drawable != null); if (widgetPreviewExists) { previewWidth = drawable.getIntrinsicWidth(); previewHeight = drawable.getIntrinsicHeight(); } else { // Generate a preview image if we couldn't load one if (cellHSpan < 1) cellHSpan = 1; if (cellVSpan < 1) cellVSpan = 1; // This Drawable is not directly drawn, so there's no need to mutate it. BitmapDrawable previewDrawable = (BitmapDrawable) mContext.getResources() .getDrawable(R.drawable.widget_tile); final int previewDrawableWidth = previewDrawable.getIntrinsicWidth(); final int previewDrawableHeight = previewDrawable.getIntrinsicHeight(); previewWidth = previewDrawableWidth * cellHSpan; previewHeight = previewDrawableHeight * cellVSpan; defaultPreview = Bitmap.createBitmap(previewWidth, previewHeight, Config.ARGB_8888); final Canvas c = mCachedAppWidgetPreviewCanvas.get(); c.setBitmap(defaultPreview); Paint p = mDefaultAppWidgetPreviewPaint.get(); if (p == null) { p = new Paint(); p.setShader(new BitmapShader(previewDrawable.getBitmap(), Shader.TileMode.REPEAT, Shader.TileMode.REPEAT)); mDefaultAppWidgetPreviewPaint.set(p); } final Rect dest = mCachedAppWidgetPreviewDestRect.get(); dest.set(0, 0, previewWidth, previewHeight); c.drawRect(dest, p); c.setBitmap(null); // Draw the icon in the top left corner int minOffset = (int) (mAppIconSize * WIDGET_PREVIEW_ICON_PADDING_PERCENTAGE); int smallestSide = Math.min(previewWidth, previewHeight); float iconScale = Math.min((float) smallestSide / (mAppIconSize + 2 * minOffset), 1f); try { Bitmap icon = mIconCache.getIconForComponent(info.configure, UserHandleCompat.myUserHandle()); if (icon != null) { int hoffset = (int) ((previewDrawableWidth - mAppIconSize * iconScale) / 2); int yoffset = (int) ((previewDrawableHeight - mAppIconSize * iconScale) / 2); renderBitmapIconOnPreview(icon, defaultPreview, hoffset, yoffset, (int) (mAppIconSize * iconScale), (int) (mAppIconSize * iconScale)); } } catch (Resources.NotFoundException ignored) { } } // Scale to fit width only - let the widget preview be clipped in the // vertical dimension float scale = 1f; if (preScaledWidthOut != null) { preScaledWidthOut[0] = previewWidth; } if (previewWidth > maxPreviewWidth) { scale = maxPreviewWidth / (float) previewWidth; } if (scale != 1f) { previewWidth = (int) (scale * previewWidth); previewHeight = (int) (scale * previewHeight); } // If a bitmap is passed in, we use it; otherwise, we create a bitmap of the right size if (preview == null) { preview = Bitmap.createBitmap(previewWidth, previewHeight, Config.ARGB_8888); } // Draw the scaled preview into the final bitmap int x = (preview.getWidth() - previewWidth) / 2; if (widgetPreviewExists) { renderDrawableToBitmap(drawable, preview, x, 0, previewWidth, previewHeight); } else { final Canvas c = mCachedAppWidgetPreviewCanvas.get(); final Rect src = mCachedAppWidgetPreviewSrcRect.get(); final Rect dest = mCachedAppWidgetPreviewDestRect.get(); c.setBitmap(preview); src.set(0, 0, defaultPreview.getWidth(), defaultPreview.getHeight()); dest.set(x, 0, x + previewWidth, previewHeight); Paint p = mCachedAppWidgetPreviewPaint.get(); if (p == null) { p = new Paint(); p.setFilterBitmap(true); mCachedAppWidgetPreviewPaint.set(p); } c.drawBitmap(defaultPreview, src, dest, p); c.setBitmap(null); } return preview; }
From source file:com.mappn.gfan.ui.HomeTabActivity.java
private Bitmap drawBitmap(DisplayMetrics dm, Bitmap background, Bitmap corner) { Canvas canvas = new Canvas(); final int height = background.getScaledHeight(dm); final int width = background.getScaledWidth(dm); Bitmap smallBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); canvas.setBitmap(smallBitmap); Paint textPainter = new Paint(Paint.ANTI_ALIAS_FLAG); canvas.drawBitmap(background, 0, 0, textPainter); textPainter.setXfermode(new PorterDuffXfermode(Mode.SRC_OVER)); canvas.drawBitmap(corner, width - corner.getScaledWidth(dm), 0, textPainter); canvas.save();//www .ja v a2s . c om return smallBitmap; }
From source file:com.android.contacts.common.list.ShortcutIntentBuilder.java
private Bitmap generateQuickContactIcon(Drawable photo) { // Setup the drawing classes Bitmap bitmap = Bitmap.createBitmap(mIconSize, mIconSize, Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(bitmap); // Copy in the photo Rect dst = new Rect(0, 0, mIconSize, mIconSize); photo.setBounds(dst);/*from w ww .j a v a2 s. c o m*/ photo.draw(canvas); // Draw the icon with a rounded border RoundedBitmapDrawable roundedDrawable = RoundedBitmapDrawableFactory.create(mResources, bitmap); roundedDrawable.setAntiAlias(true); roundedDrawable.setCornerRadius(mIconSize / 2); Bitmap roundedBitmap = Bitmap.createBitmap(mIconSize, mIconSize, Bitmap.Config.ARGB_8888); canvas.setBitmap(roundedBitmap); roundedDrawable.setBounds(dst); roundedDrawable.draw(canvas); canvas.setBitmap(null); return roundedBitmap; }
From source file:com.android.contacts.ShortcutIntentBuilder.java
private Bitmap generateQuickContactIcon(Drawable photo) { // Setup the drawing classes Bitmap bitmap = Bitmap.createBitmap(mIconSize, mIconSize, Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(bitmap); // Copy in the photo Rect dst = new Rect(0, 0, mIconSize, mIconSize); photo.setBounds(dst);//w w w .j ava 2 s.com photo.draw(canvas); // Don't put a rounded border on an icon for O if (BuildCompat.isAtLeastO()) { return bitmap; } // Draw the icon with a rounded border RoundedBitmapDrawable roundedDrawable = RoundedBitmapDrawableFactory.create(mResources, bitmap); roundedDrawable.setAntiAlias(true); roundedDrawable.setCornerRadius(mIconSize / 2); Bitmap roundedBitmap = Bitmap.createBitmap(mIconSize, mIconSize, Bitmap.Config.ARGB_8888); canvas.setBitmap(roundedBitmap); roundedDrawable.setBounds(dst); roundedDrawable.draw(canvas); canvas.setBitmap(null); return roundedBitmap; }
From source file:com.android.launcher3.Utilities.java
/** * @param scale the scale to apply before drawing {@param icon} on the canvas *//*ww w .j a v a 2 s.co m*/ public static Bitmap createIconBitmap(Drawable icon, Context context, float scale) { synchronized (sCanvas) { final int iconBitmapSize = getIconBitmapSize(); int width = iconBitmapSize; int height = iconBitmapSize; if (icon instanceof PaintDrawable) { PaintDrawable painter = (PaintDrawable) icon; painter.setIntrinsicWidth(width); painter.setIntrinsicHeight(height); } else if (icon instanceof BitmapDrawable) { // Ensure the bitmap has a density. BitmapDrawable bitmapDrawable = (BitmapDrawable) icon; Bitmap bitmap = bitmapDrawable.getBitmap(); if (bitmap != null && bitmap.getDensity() == Bitmap.DENSITY_NONE) { bitmapDrawable.setTargetDensity(context.getResources().getDisplayMetrics()); } } int sourceWidth = icon.getIntrinsicWidth(); int sourceHeight = icon.getIntrinsicHeight(); if (sourceWidth > 0 && sourceHeight > 0) { // Scale the icon proportionally to the icon dimensions final float ratio = (float) sourceWidth / sourceHeight; if (sourceWidth > sourceHeight) { height = (int) (width / ratio); } else if (sourceHeight > sourceWidth) { width = (int) (height * ratio); } } // no intrinsic size --> use default size int textureWidth = iconBitmapSize; int textureHeight = iconBitmapSize; final Bitmap bitmap = Bitmap.createBitmap(textureWidth, textureHeight, Bitmap.Config.ARGB_8888); final Canvas canvas = sCanvas; canvas.setBitmap(bitmap); final int left = (textureWidth - width) / 2; final int top = (textureHeight - height) / 2; @SuppressWarnings("all") // suppress dead code warning final boolean debug = false; if (debug) { // draw a big box for the icon for debugging canvas.drawColor(sColors[sColorIndex]); if (++sColorIndex >= sColors.length) sColorIndex = 0; Paint debugPaint = new Paint(); debugPaint.setColor(0xffcccc00); canvas.drawRect(left, top, left + width, top + height, debugPaint); } sOldBounds.set(icon.getBounds()); icon.setBounds(left, top, left + width, top + height); canvas.save(Canvas.MATRIX_SAVE_FLAG); canvas.scale(scale, scale, textureWidth / 2, textureHeight / 2); icon.draw(canvas); canvas.restore(); icon.setBounds(sOldBounds); canvas.setBitmap(null); return bitmap; } }
From source file:kr.wdream.storyshop.AndroidUtilities.java
private static Intent createShortcutIntent(long did, boolean forDelete) { Intent shortcutIntent = new Intent(ApplicationLoader.applicationContext, OpenChatReceiver.class); int lower_id = (int) did; int high_id = (int) (did >> 32); TLRPC.User user = null;/*from w w w . ja va 2 s .c o m*/ TLRPC.Chat chat = null; if (lower_id == 0) { shortcutIntent.putExtra("encId", high_id); TLRPC.EncryptedChat encryptedChat = MessagesController.getInstance().getEncryptedChat(high_id); if (encryptedChat == null) { return null; } user = MessagesController.getInstance().getUser(encryptedChat.user_id); } else if (lower_id > 0) { shortcutIntent.putExtra("userId", lower_id); user = MessagesController.getInstance().getUser(lower_id); } else if (lower_id < 0) { chat = MessagesController.getInstance().getChat(-lower_id); shortcutIntent.putExtra("chatId", -lower_id); } else { return null; } if (user == null && chat == null) { return null; } String name; TLRPC.FileLocation photo = null; if (user != null) { name = ContactsController.formatName(user.first_name, user.last_name); if (user.photo != null) { photo = user.photo.photo_small; } } else { name = chat.title; if (chat.photo != null) { photo = chat.photo.photo_small; } } shortcutIntent.setAction("com.tmessages.openchat" + did); shortcutIntent.addFlags(0x4000000); Intent addIntent = new Intent(); addIntent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent); addIntent.putExtra(Intent.EXTRA_SHORTCUT_NAME, name); addIntent.putExtra("duplicate", false); if (!forDelete) { Bitmap bitmap = null; if (photo != null) { try { File path = FileLoader.getPathToAttach(photo, true); bitmap = BitmapFactory.decodeFile(path.toString()); if (bitmap != null) { int size = AndroidUtilities.dp(58); Bitmap result = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888); result.eraseColor(Color.TRANSPARENT); Canvas canvas = new Canvas(result); BitmapShader shader = new BitmapShader(bitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP); if (roundPaint == null) { roundPaint = new Paint(Paint.ANTI_ALIAS_FLAG); bitmapRect = new RectF(); } float scale = size / (float) bitmap.getWidth(); canvas.save(); canvas.scale(scale, scale); roundPaint.setShader(shader); bitmapRect.set(0, 0, bitmap.getWidth(), bitmap.getHeight()); canvas.drawRoundRect(bitmapRect, bitmap.getWidth(), bitmap.getHeight(), roundPaint); canvas.restore(); Drawable drawable = ApplicationLoader.applicationContext.getResources() .getDrawable(R.drawable.book_logo); int w = AndroidUtilities.dp(15); int left = size - w - AndroidUtilities.dp(2); int top = size - w - AndroidUtilities.dp(2); drawable.setBounds(left, top, left + w, top + w); drawable.draw(canvas); try { canvas.setBitmap(null); } catch (Exception e) { //don't promt, this will crash on 2.x } bitmap = result; } } catch (Throwable e) { FileLog.e("tmessages", e); } } if (bitmap != null) { addIntent.putExtra(Intent.EXTRA_SHORTCUT_ICON, bitmap); } else { if (user != null) { if (user.bot) { addIntent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, Intent.ShortcutIconResource .fromContext(ApplicationLoader.applicationContext, R.drawable.book_bot)); } else { addIntent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, Intent.ShortcutIconResource .fromContext(ApplicationLoader.applicationContext, R.drawable.book_user)); } } else if (chat != null) { if (ChatObject.isChannel(chat) && !chat.megagroup) { addIntent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, Intent.ShortcutIconResource .fromContext(ApplicationLoader.applicationContext, R.drawable.book_channel)); } else { addIntent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, Intent.ShortcutIconResource .fromContext(ApplicationLoader.applicationContext, R.drawable.book_group)); } } } } return addIntent; }