diff options
Diffstat (limited to 'src/org/fox/ttrss/util/EnlargingImageView.java')
| -rw-r--r-- | src/org/fox/ttrss/util/EnlargingImageView.java | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/src/org/fox/ttrss/util/EnlargingImageView.java b/src/org/fox/ttrss/util/EnlargingImageView.java deleted file mode 100644 index b6f9bce9..00000000 --- a/src/org/fox/ttrss/util/EnlargingImageView.java +++ /dev/null @@ -1,252 +0,0 @@ -package org.fox.ttrss.util;
-
-/*
- * Copyright (C) 2013 Tomáš Procházka
- *
- * 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.
- */
-
-import java.lang.reflect.Field;
-
-import android.content.Context;
-import android.util.AttributeSet;
-import android.view.View;
-
-/**
- * Special version of ImageView which allow enlarge width of image if android:adjustViewBounds is true.
- *
- * <p>It simulate HTML behaviour <img src="" widh="100" /></p>
- * <p><a href="http://stackoverflow.com/questions/6202000/imageview-one-dimension-to-fit-free-space-and-second-evaluate-to-keep-aspect-rati">Stackoverflow question link</a></p>
- *
- * <p>It also allow set related view which will be used as reference for size measure.</p>
- *
- * @author Tomáš Procházka <<a href="mailto:tomas.prochazka@inmite.eu">tomas.prochazka@gmail.com</a>>
- * @version $Revision: 0$ ($Date: 6.6.2011 18:16:52$)
- */
-public class EnlargingImageView extends android.widget.ImageView {
-
- private int mDrawableWidth;
- private int mDrawableHeight;
- private boolean mAdjustViewBoundsL;
- private int mMaxWidthL = Integer.MAX_VALUE;
- private int mMaxHeightL = Integer.MAX_VALUE;
- private View relatedView;
-
- public EnlargingImageView(Context context, AttributeSet attrs, int defStyle) {
- super(context, attrs, defStyle);
-
- // hack for acces some private field of parent :-(
- Field f;
- try {
- f = android.widget.ImageView.class.getDeclaredField("mAdjustViewBounds");
- f.setAccessible(true);
- setAdjustViewBounds((Boolean) f.get(this));
-
- f = android.widget.ImageView.class.getDeclaredField("mMaxWidth");
- f.setAccessible(true);
- setMaxWidth((Integer) f.get(this));
-
- f = android.widget.ImageView.class.getDeclaredField("mMaxHeight");
- f.setAccessible(true);
- setMaxHeight((Integer) f.get(this));
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
-
- public EnlargingImageView(Context context, AttributeSet attrs) {
- this(context, attrs, 0);
- }
-
- public EnlargingImageView(Context context) {
- super(context);
- }
-
- public void setAdjustViewBounds(boolean adjustViewBounds) {
- super.setAdjustViewBounds(adjustViewBounds);
- mAdjustViewBoundsL = adjustViewBounds;
- }
-
- public void setMaxWidth(int maxWidth) {
- super.setMaxWidth(maxWidth);
- mMaxWidthL = maxWidth;
- }
-
- public void setMaxHeight(int maxHeight) {
- super.setMaxHeight(maxHeight);
- mMaxHeightL = maxHeight;
- }
-
- @Override
- protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
- super.onMeasure(widthMeasureSpec, heightMeasureSpec);
-
- if (getDrawable() == null) {
- setMeasuredDimension(0, 0);
- return;
- }
-
- mDrawableWidth = getDrawable().getIntrinsicWidth();
- mDrawableHeight = getDrawable().getIntrinsicHeight();
-
- int w = 0;
- int h = 0;
-
- // Desired aspect ratio of the view's contents (not including padding)
- float desiredAspect = 0.0f;
-
- // We are allowed to change the view's width
- boolean resizeWidth = false;
-
- // We are allowed to change the view's height
- boolean resizeHeight = false;
-
- if (mDrawableWidth > 0) {
- w = mDrawableWidth;
- h = mDrawableHeight;
- if (w <= 0) w = 1;
- if (h <= 0) h = 1;
-
- // We are supposed to adjust view bounds to match the aspect
- // ratio of our drawable. See if that is possible.
- if (mAdjustViewBoundsL) {
-
- int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec);
- int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec);
-
- resizeWidth = widthSpecMode != MeasureSpec.EXACTLY;
- resizeHeight = heightSpecMode != MeasureSpec.EXACTLY;
-
- desiredAspect = (float) w / (float) h;
- }
- }
-
- int pleft = getPaddingLeft();
- int pright = getPaddingRight();
- int ptop = getPaddingTop();
- int pbottom = getPaddingBottom();
-
- int widthSize;
- int heightSize;
-
- if (resizeWidth || resizeHeight) {
- /* If we get here, it means we want to resize to match the
- drawables aspect ratio, and we have the freedom to change at
- least one dimension.
- */
-
- // Get the max possible width given our constraints
- widthSize = resolveAdjustedSize(w + pleft + pright,
- mMaxWidthL, widthMeasureSpec);
-
- // Get the max possible height given our constraints
- heightSize = resolveAdjustedSize(h + ptop + pbottom,
- mMaxHeightL, heightMeasureSpec);
-
- if (desiredAspect != 0.0f) {
- // See what our actual aspect ratio is
- float actualAspect = (float) (widthSize - pleft - pright) /
- (heightSize - ptop - pbottom);
-
- if (Math.abs(actualAspect - desiredAspect) > 0.0000001) {
-
- // Try adjusting width to be proportional to height
- if (resizeWidth) {
- int newWidth = (int) (desiredAspect * (heightSize - ptop - pbottom)) + pleft + pright;
- if (/*newWidth <= widthSize &&*/newWidth > 0) {
- widthSize = Math.min(newWidth, mMaxWidthL);
- heightSize = (int) ((widthSize - pleft - pright) / desiredAspect) + ptop + pbottom;
- }
- }
-
- // Try adjusting height to be proportional to width
- if (resizeHeight) {
- int newHeight = (int) ((widthSize - pleft - pright) / desiredAspect) + ptop + pbottom;
- if (/*newHeight <= heightSize && */newHeight > 0) {
- heightSize = Math.min(newHeight, mMaxHeightL);
- widthSize = (int) (desiredAspect * (heightSize - ptop - pbottom)) + pleft + pright;
- }
- }
- }
- }
- } else {
- /* We are either don't want to preserve the drawables aspect ratio,
- or we are not allowed to change view dimensions. Just measure in
- the normal way.
- */
- w += pleft + pright;
- h += ptop + pbottom;
-
- w = Math.max(w, getSuggestedMinimumWidth());
- h = Math.max(h, getSuggestedMinimumHeight());
-
- widthSize = resolveSize(w, widthMeasureSpec);
- heightSize = resolveSize(h, heightMeasureSpec);
- }
-
- //Log.d(Constants.LOGTAG, mDrawableWidth + ":" + mDrawableHeight + " to " + widthSize + ":" + heightSize);
-
- setMeasuredDimension(widthSize, heightSize);
-
- if (relatedView != null) {
- //Log.i(Constants.LOGTAG, getTag() + " onMeasure:" + widthSize + ", " + heightSize + " update size of related view!");
- relatedView.getLayoutParams().width = widthSize;
- relatedView.getLayoutParams().height = heightSize;
- }
-
- }
-
- @Override
- protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
- super.onLayout(changed, left, top, right, bottom);
- //Log.d(Constants.LOGTAG, getTag() + " onLayout:" + left + ", " + top + ", " + right + ", " + bottom);
- }
-
- /**
- * Experimental. This view will be set to the same size as this image.
- */
- public void setRelatedView(View view) {
- relatedView = view;
- }
-
- @Override
- protected void onSizeChanged(int w, int h, int oldw, int oldh) {
- super.onSizeChanged(w, h, oldw, oldh);
- //Log.d(Constants.LOGTAG, getTag() + " onSizeChanged:" + w + ", " + h + ", " + oldw + ", " + oldh);
- }
-
- private int resolveAdjustedSize(int desiredSize, int maxSize, int measureSpec) {
- int result = desiredSize;
- int specMode = MeasureSpec.getMode(measureSpec);
- int specSize = MeasureSpec.getSize(measureSpec);
- switch (specMode) {
- case MeasureSpec.UNSPECIFIED:
- /* Parent says we can be as big as we want. Just don't be larger
- than max size imposed on ourselves.
- */
- result = Math.min(desiredSize, maxSize);
- break;
- case MeasureSpec.AT_MOST:
- // Parent says we can be as big as we want, up to specSize.
- // Don't be larger than specSize, and don't be larger than
- // the max size imposed on ourselves.
- result = Math.min(Math.min(desiredSize, specSize), maxSize);
- break;
- case MeasureSpec.EXACTLY:
- // No choice. Do what we are told.
- result = specSize;
- break;
- }
- return result;
- }
-}
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