forked from tidev/titanium-sdk
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
timob-10080: Added methods to manipulate images in TiBlob class for p…
…arity with iOS.Reset image when width or height is changed in TiUIImageView class.
- Loading branch information
1 parent
06d905c
commit 44d71ff
Showing
4 changed files
with
326 additions
and
13 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
125 changes: 125 additions & 0 deletions
125
android/titanium/src/java/org/appcelerator/titanium/util/TiImageHelper.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| /** | ||
| * Appcelerator Titanium Mobile | ||
| * Copyright (c) 2009-2012 by Appcelerator, Inc. All Rights Reserved. | ||
| * Licensed under the terms of the Apache Public License | ||
| * Please see the LICENSE included with this distribution for details. | ||
| */ | ||
|
|
||
| package org.appcelerator.titanium.util; | ||
|
|
||
| import java.util.Arrays; | ||
|
|
||
| import org.appcelerator.kroll.common.Log; | ||
|
|
||
| import android.graphics.Bitmap; | ||
| import android.graphics.Canvas; | ||
| import android.graphics.Path; | ||
| import android.graphics.Path.Direction; | ||
| import android.graphics.RectF; | ||
|
|
||
| /** | ||
| * Utility class for image manipulations. | ||
| */ | ||
| public class TiImageHelper | ||
| { | ||
| private static final String TAG = "TiImageHelper"; | ||
|
|
||
| /** | ||
| * Add an alpha channel to the given image if it does not already have one. | ||
| * | ||
| * @param image | ||
| * the image to add an alpha channel to. | ||
| * @return a copy of the given image with an alpha channel. | ||
| */ | ||
| public static Bitmap imageWithAlpha(Bitmap image) | ||
| { | ||
| if (image == null) { | ||
| return null; | ||
| } | ||
| if (image.hasAlpha()) { | ||
| return image; | ||
| } | ||
| return image.copy(Bitmap.Config.ARGB_8888, true); | ||
| } | ||
|
|
||
| /** | ||
| * Create a copy of the given image with rounded corners and a transparent border around its edges. | ||
| * | ||
| * @param image | ||
| * the image to add rounded corners to. | ||
| * @param cornerRadius | ||
| * the radius of the rounded corners. | ||
| * @param borderSize | ||
| * the size of the border to be added. | ||
| * @return a copy of the given image with rounded corners and a transparent border. | ||
| */ | ||
| public static Bitmap imageWithRoundedCorner(Bitmap image, float cornerRadius, float borderSize) | ||
| { | ||
| if (image == null) { | ||
| return null; | ||
| } | ||
| if (cornerRadius < 0 || borderSize < 0) { | ||
| Log.e(TAG, "Invalid corner radius or border size for imageWithRoundedCorner"); | ||
| return image; | ||
| } | ||
|
|
||
| if (cornerRadius == 0) { | ||
| return imageWithTransparentBorder(image, (int) borderSize); | ||
| } | ||
|
|
||
| int width = image.getWidth(); | ||
| int height = image.getHeight(); | ||
| Bitmap imageRoundedCorner = Bitmap.createBitmap(width + (int) (borderSize * 2), height + (int) (borderSize * 2), | ||
| Bitmap.Config.ARGB_8888); | ||
| Canvas canvas = new Canvas(imageRoundedCorner); | ||
|
|
||
| Path clipPath = new Path(); | ||
| RectF imgRect = new RectF(borderSize, borderSize, width + borderSize, height + borderSize); | ||
|
|
||
| float radii[] = new float[8]; | ||
| Arrays.fill(radii, cornerRadius); | ||
| clipPath.addRoundRect(imgRect, radii, Direction.CW); | ||
|
|
||
| // This still happens sometimes when hw accelerated so, catch and warn | ||
| try { | ||
| canvas.clipPath(clipPath); | ||
| } catch (Exception e) { | ||
| Log.e(TAG, "Unable to create the image with rounded corners. clipPath failed on canvas: " + e.getMessage()); | ||
| canvas.clipRect(imgRect); | ||
| } | ||
|
|
||
| canvas.drawBitmap(imageWithAlpha(image), borderSize, borderSize, null); | ||
| return imageRoundedCorner; | ||
| } | ||
|
|
||
| /** | ||
| * Add a transparent border to the given image around its edges. | ||
| * | ||
| * @param image | ||
| * the image to add a transparent border to. | ||
| * @param borderSize | ||
| * the size of the border to be added. | ||
| * @return a copy of the given image with a transparent border. | ||
| */ | ||
| public static Bitmap imageWithTransparentBorder(Bitmap image, int borderSize) | ||
| { | ||
| if (image == null) { | ||
| return null; | ||
| } | ||
| if (borderSize < 0) { | ||
| Log.e(TAG, "Invalid border size for imageWithTransparentBorder"); | ||
| return image; | ||
| } | ||
|
|
||
| if (borderSize == 0) { | ||
| return image; | ||
| } | ||
|
|
||
| int width = image.getWidth(); | ||
| int height = image.getHeight(); | ||
| Bitmap imageBorder = Bitmap.createBitmap(width + borderSize * 2, height + borderSize * 2, Bitmap.Config.ARGB_8888); | ||
| Canvas canvas = new Canvas(imageBorder); | ||
| canvas.drawBitmap(imageWithAlpha(image), borderSize, borderSize, null); | ||
| return imageBorder; | ||
| } | ||
| } |
Oops, something went wrong.