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Code Issues Projects Releases Packages Wiki Activity Actions

Fix gestures on vertical readers

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This commit is contained in:
inorichi 2016-01-30 16:40:41 +01:00
parent bcefc176c1
commit e53b05feba
6 changed files with 61 additions and 51 deletions
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70
libs/SubsamplingScaleImageView/src/com/davemorrissey/labs/subscaleview/SubsamplingScaleImageView.java
View file

@ -201,8 +201,12 @@ public class SubsamplingScaleImageView extends View {
private int sOrientation;
private Rect sRegion;
private Rect pRegion;
private int cWidth;
private int cHeight;
// Max bitmap dimensions the device can display
private int maxBitmapDimensions;
// Vertical pagers/scrollers should enable this
private boolean isVerticalScroll;
// Is two-finger zooming in progress
private boolean isZooming;
@ -754,16 +758,32 @@ public class SubsamplingScaleImageView extends View {
float lastX = vTranslate.x;
float lastY = vTranslate.y;
fitToBounds(true);
boolean atXEdge = lastX != vTranslate.x;
boolean edgeXSwipe = atXEdge && dx > dy && !isPanning;
boolean yPan = lastY == vTranslate.y && dy > 15;
if (!edgeXSwipe && (!atXEdge || yPan || isPanning)) {
isPanning = true;
} else if (dx > 5) {
// Haven't panned the image, and we're at the left or right edge. Switch to page swipe.
maxTouchCount = 0;
handler.removeMessages(MESSAGE_LONG_CLICK);
getParent().requestDisallowInterceptTouchEvent(false);
if (!isVerticalScroll) {
boolean atXEdge = lastX != vTranslate.x;
boolean edgeXSwipe = atXEdge && dx > dy && !isPanning;
boolean yPan = lastY == vTranslate.y && dy > 15;
if (!edgeXSwipe && (!atXEdge || yPan || isPanning)) {
isPanning = true;
} else if (dx > 5) {
// Haven't panned the image, and we're at the left or right edge. Switch to page swipe.
maxTouchCount = 0;
handler.removeMessages(MESSAGE_LONG_CLICK);
getParent().requestDisallowInterceptTouchEvent(false);
}
} else {
boolean atYEdge = lastY != vTranslate.y;
boolean edgeYSwipe = atYEdge && dy > dx && !isPanning;
boolean xPan = lastX == vTranslate.x && dx > 15;
if (!edgeYSwipe && (!atYEdge || xPan || isPanning)) {
isPanning = true;
} else if (dy > 5) {
// Haven't panned the image, and we're at the left or right edge. Switch to page swipe.
maxTouchCount = 0;
handler.removeMessages(MESSAGE_LONG_CLICK);
getParent().requestDisallowInterceptTouchEvent(false);
}
}
if (!panEnabled) {
@ -870,7 +890,7 @@ public class SubsamplingScaleImageView extends View {
}
// When using tiles, on first render with no tile map ready, initialise it and kick off async base image loading.
if (tileMap == null && decoder != null && cWidth == 0 && cHeight == 0) {
if (tileMap == null && decoder != null && maxBitmapDimensions == 0) {
initialiseBaseLayer(getMaxBitmapDimensions(canvas));
}
@ -1390,11 +1410,6 @@ public class SubsamplingScaleImageView extends View {
}
}
public void setMaxDimensions(int width, int height) {
cWidth = width;
cHeight = height;
}
/**
* Async task used to get image details without blocking the UI thread.
*/
@ -1473,8 +1488,8 @@ public class SubsamplingScaleImageView extends View {
this.sHeight = sHeight;
this.sOrientation = sOrientation;
checkReady();
if (!checkImageLoaded() && cWidth != 0 && cHeight != 0) {
initialiseBaseLayer(new Point(cWidth, cHeight));
if (!checkImageLoaded() && maxBitmapDimensions > 0) {
initialiseBaseLayer(new Point(maxBitmapDimensions, maxBitmapDimensions));
}
invalidate();
requestLayout();
@ -2476,6 +2491,21 @@ public class SubsamplingScaleImageView extends View {
this.parallelLoadingEnabled = parallelLoadingEnabled;
}
/**
* Set max bitmap dimensions the device can display
*/
public void setMaxBitmapDimensions(int maxBitmapDimensions) {
this.maxBitmapDimensions = maxBitmapDimensions;
}
/**
* Set vertical scroll mode to fix gestures
*/
public void setVerticalScroll(boolean isVerticalScroll) {
this.isVerticalScroll = isVerticalScroll;
}
/**
* Enables visual debugging, showing tile boundaries and sizes.
*/