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Changed preserveImageSizeOnResize to require autoResize=true.

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Refactored resizing code to share more code.
Removed preserveImageSizeOnResize parameter from viewer.
This commit is contained in:
Grant Echols 2015-06-24 10:48:00 -06:00
parent fb21dabd76
commit df878f6f82
2 changed files with 21 additions and 27 deletions
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2
src/openseadragon.js
View File

@ -253,7 +253,7 @@
* Set to false to prevent polling for viewer size changes. Useful for providing custom resize behavior.
*
* @property {Boolean} [preserveImageSizeOnResize=false]
* Set to true to have the image size preserved when the viewer is resized. This requires autoResize=false.
* Set to true to have the image size preserved when the viewer is resized. This requires autoResize=true (default).
*
* @property {Number} [pixelsPerWheelLine=40]
* For pixel-resolution scrolling devices, the number of pixels equal to one scroll line.

46
src/viewer.js
View File

@ -408,7 +408,6 @@ $.Viewer = function( options ) {
width: this.navigatorWidth,
height: this.navigatorHeight,
autoResize: this.navigatorAutoResize,
preserveImageSizeOnResize: this.preserveImageSizeOnResize,
prefixUrl: this.prefixUrl,
viewer: this,
navigatorRotate: this.navigatorRotate,
@ -2829,32 +2828,27 @@ function updateOnce( viewer ) {
if ( viewer.autoResize ) {
containerSize = _getSafeElemSize( viewer.container );
if ( !containerSize.equals( THIS[ viewer.hash ].prevContainerSize ) ) {
// maintain image position
var oldBounds = viewer.viewport.getBounds();
var oldCenter = viewer.viewport.getCenter();
resizeViewportAndRecenter(viewer, containerSize, oldBounds, oldCenter);
THIS[ viewer.hash ].prevContainerSize = containerSize;
THIS[ viewer.hash ].forceRedraw = true;
}
}
else if ( viewer.preserveImageSizeOnResize ) {
containerSize = _getSafeElemSize( viewer.container );
if ( !containerSize.equals( THIS[ viewer.hash ].prevContainerSize ) ) {
var prevContainerSize = THIS[ viewer.hash ].prevContainerSize;
var bounds = viewer.viewport.getBounds(true);
var deltaX = (containerSize.x - prevContainerSize.x);
var deltaY = (containerSize.y - prevContainerSize.y);
var viewportDiff = viewer.viewport.deltaPointsFromPixels(new OpenSeadragon.Point(deltaX, deltaY), true);
viewer.viewport.resize(new OpenSeadragon.Point(containerSize.x, containerSize.y), false);
// Keep the center of the image in the center and just adjust the amount of image shown
bounds.width += viewportDiff.x;
bounds.height += viewportDiff.y;
bounds.x -= (viewportDiff.x / 2);
bounds.y -= (viewportDiff.y / 2);
viewer.viewport.fitBoundsWithConstraints(bounds, true);
viewer.forceRedraw();
if ( viewer.preserveImageSizeOnResize ) {
var prevContainerSize = THIS[ viewer.hash ].prevContainerSize;
var bounds = viewer.viewport.getBounds(true);
var deltaX = (containerSize.x - prevContainerSize.x);
var deltaY = (containerSize.y - prevContainerSize.y);
var viewportDiff = viewer.viewport.deltaPointsFromPixels(new OpenSeadragon.Point(deltaX, deltaY), true);
viewer.viewport.resize(new OpenSeadragon.Point(containerSize.x, containerSize.y), false);
// Keep the center of the image in the center and just adjust the amount of image shown
bounds.width += viewportDiff.x;
bounds.height += viewportDiff.y;
bounds.x -= (viewportDiff.x / 2);
bounds.y -= (viewportDiff.y / 2);
viewer.viewport.fitBoundsWithConstraints(bounds, true);
}
else {
// maintain image position
var oldBounds = viewer.viewport.getBounds();
var oldCenter = viewer.viewport.getCenter();
resizeViewportAndRecenter(viewer, containerSize, oldBounds, oldCenter);
}
THIS[ viewer.hash ].prevContainerSize = containerSize;
THIS[ viewer.hash ].forceRedraw = true;
}