mirror of
https://github.com/openseadragon/openseadragon.git
synced 2024-11-28 16:16:08 +03:00
Merge pull request #365 from avandecreme/optimization
Overlays performance optimization. See #359
This commit is contained in:
iangilman
commit
693b9e2e89
@ -78,7 +78,11 @@
|
||||
* @param {OpenSeadragon.OverlayPlacement} [options.placement=OpenSeadragon.OverlayPlacement.TOP_LEFT]
|
||||
* Relative position to the viewport.
|
||||
* Only used if location is a {@link OpenSeadragon.Point}.
|
||||
* @param {OpenSeadragon.Overlay.OnDrawCallback} options.onDraw
|
||||
* @param {OpenSeadragon.Overlay.OnDrawCallback} [options.onDraw]
|
||||
* @param {Boolean} [options.checkResize=true] Set to false to avoid to
|
||||
* check the size of the overlay everytime it is drawn when using a
|
||||
* {@link OpenSeadragon.Point} as options.location. It will improve
|
||||
* performances but will cause a misalignment if the overlay size changes.
|
||||
*/
|
||||
$.Overlay = function( element, location, placement ) {
|
||||
|
||||
@ -125,6 +129,8 @@
|
||||
options.placement :
|
||||
$.OverlayPlacement.TOP_LEFT;
|
||||
this.onDraw = options.onDraw;
|
||||
this.checkResize = options.checkResize === undefined ?
|
||||
true : options.checkResize;
|
||||
};
|
||||
|
||||
$.Overlay.prototype = /** @lends OpenSeadragon.Overlay.prototype */{
|
||||
@ -212,19 +218,12 @@
|
||||
var element = this.element,
|
||||
style = this.style,
|
||||
scales = this.scales,
|
||||
drawerCenter = new $.Point(
|
||||
viewport.viewer.drawer.canvas.width / 2,
|
||||
viewport.viewer.drawer.canvas.height / 2
|
||||
),
|
||||
degrees = viewport.degrees,
|
||||
position = viewport.pixelFromPoint(
|
||||
this.bounds.getTopLeft(),
|
||||
true
|
||||
),
|
||||
size = viewport.deltaPixelsFromPoints(
|
||||
this.bounds.getSize(),
|
||||
true
|
||||
),
|
||||
size,
|
||||
overlayCenter;
|
||||
|
||||
if ( element.parentNode != container ) {
|
||||
@ -232,10 +231,18 @@
|
||||
element.prevElementParent = element.parentNode;
|
||||
element.prevNextSibling = element.nextSibling;
|
||||
container.appendChild( element );
|
||||
this.size = $.getElementSize( element );
|
||||
}
|
||||
|
||||
if ( !scales ) {
|
||||
this.size = $.getElementSize( element );
|
||||
if ( scales ) {
|
||||
size = viewport.deltaPixelsFromPoints(
|
||||
this.bounds.getSize(),
|
||||
true
|
||||
);
|
||||
} else if ( this.checkResize ) {
|
||||
size = $.getElementSize( element );
|
||||
} else {
|
||||
size = this.size;
|
||||
}
|
||||
|
||||
this.position = position;
|
||||
@ -254,6 +261,10 @@
|
||||
if( degrees !== 0 && this.scales ) {
|
||||
overlayCenter = new $.Point( size.x / 2, size.y / 2 );
|
||||
|
||||
var drawerCenter = new $.Point(
|
||||
viewport.viewer.drawer.canvas.width / 2,
|
||||
viewport.viewer.drawer.canvas.height / 2
|
||||
);
|
||||
position = position.plus( overlayCenter ).rotate(
|
||||
degrees,
|
||||
drawerCenter
|
||||
@ -263,7 +274,7 @@
|
||||
size = new $.Point( Math.abs( size.x ), Math.abs( size.y ) );
|
||||
}
|
||||
|
||||
// call the onDraw callback if there is one to allow, this allows someone to overwrite
|
||||
// call the onDraw callback if it exists to allow one to overwrite
|
||||
// the drawing/positioning/sizing of the overlay
|
||||
if ( this.onDraw ) {
|
||||
this.onDraw( position, size, element );
|
||||
|
||||
@ -2045,22 +2045,31 @@ function getOverlayObject( viewer, overlay ) {
|
||||
|
||||
var location = overlay.location;
|
||||
if ( !location ) {
|
||||
var rect = ( overlay.height && overlay.width ) ? new $.Rect(
|
||||
overlay.x || overlay.px,
|
||||
overlay.y || overlay.py,
|
||||
if ( overlay.width && overlay.height ) {
|
||||
location = overlay.px !== undefined ?
|
||||
viewer.viewport.imageToViewportRectangle( new $.Rect(
|
||||
overlay.px,
|
||||
overlay.py,
|
||||
overlay.width,
|
||||
overlay.height
|
||||
) ) :
|
||||
new $.Rect(
|
||||
overlay.x,
|
||||
overlay.y,
|
||||
overlay.width,
|
||||
overlay.height
|
||||
) : new $.Point(
|
||||
overlay.x || overlay.px,
|
||||
overlay.y || overlay.py
|
||||
);
|
||||
if( overlay.px !== undefined ) {
|
||||
//if they specified 'px' so it's in pixel coordinates so
|
||||
//we need to translate to viewport coordinates
|
||||
rect = viewer.viewport.imageToViewportRectangle( rect );
|
||||
} else {
|
||||
location = overlay.px !== undefined ?
|
||||
viewer.viewport.imageToViewportCoordinates( new $.Point(
|
||||
overlay.px,
|
||||
overlay.py
|
||||
) ) :
|
||||
new $.Point(
|
||||
overlay.x,
|
||||
overlay.y
|
||||
);
|
||||
}
|
||||
location = overlay.placement ? viewer.viewport.pointFromPixel( rect ) :
|
||||
rect;
|
||||
}
|
||||
|
||||
var placement = overlay.placement;
|
||||
@ -2072,7 +2081,8 @@ function getOverlayObject( viewer, overlay ) {
|
||||
element: element,
|
||||
location: location,
|
||||
placement: placement,
|
||||
onDraw: overlay.onDraw
|
||||
onDraw: overlay.onDraw,
|
||||
checkResize: overlay.checkResize
|
||||
});
|
||||
}
|
||||
|
||||
|
||||
199
test/overlays.js
199
test/overlays.js
@ -221,7 +221,7 @@
|
||||
viewer = OpenSeadragon( {
|
||||
id: 'example-overlays',
|
||||
prefixUrl: '/build/openseadragon/images/',
|
||||
tileSources: [ '/test/data/testpattern.dzi', '/test/data/testpattern.dzi' ],
|
||||
tileSources: '/test/data/testpattern.dzi',
|
||||
springStiffness: 100, // Faster animation = faster tests
|
||||
overlays: [ {
|
||||
px: 13,
|
||||
@ -232,7 +232,8 @@
|
||||
}, {
|
||||
px: 400,
|
||||
py: 500,
|
||||
id: "fixed-overlay"
|
||||
id: "fixed-overlay",
|
||||
placement: "TOP_LEFT"
|
||||
} ]
|
||||
} );
|
||||
|
||||
@ -284,7 +285,7 @@
|
||||
viewer = OpenSeadragon( {
|
||||
id: 'example-overlays',
|
||||
prefixUrl: '/build/openseadragon/images/',
|
||||
tileSources: [ '/test/data/testpattern.dzi', '/test/data/testpattern.dzi' ],
|
||||
tileSources: '/test/data/testpattern.dzi',
|
||||
springStiffness: 100, // Faster animation = faster tests
|
||||
overlays: [ {
|
||||
x: 0.2,
|
||||
@ -295,7 +296,8 @@
|
||||
}, {
|
||||
x: 0.5,
|
||||
y: 0.6,
|
||||
id: "fixed-overlay"
|
||||
id: "fixed-overlay",
|
||||
placement: "TOP_LEFT"
|
||||
} ]
|
||||
} );
|
||||
|
||||
@ -341,4 +343,193 @@
|
||||
} );
|
||||
} );
|
||||
|
||||
asyncTest( 'Overlays placement', function() {
|
||||
|
||||
var scalableOverlayLocation = new OpenSeadragon.Rect( 0.2, 0.1, 0.5, 0.1 );
|
||||
var fixedOverlayLocation = new OpenSeadragon.Point( 0.5, 0.6 );
|
||||
|
||||
viewer = OpenSeadragon( {
|
||||
id: 'example-overlays',
|
||||
prefixUrl: '/build/openseadragon/images/',
|
||||
tileSources: '/test/data/testpattern.dzi',
|
||||
springStiffness: 100, // Faster animation = faster tests
|
||||
overlays: [ {
|
||||
x: scalableOverlayLocation.x,
|
||||
y: scalableOverlayLocation.y,
|
||||
width: scalableOverlayLocation.width,
|
||||
height: scalableOverlayLocation.height,
|
||||
id: "overlay",
|
||||
placement: "TOP_LEFT"
|
||||
}, {
|
||||
x: fixedOverlayLocation.x,
|
||||
y: fixedOverlayLocation.y,
|
||||
id: "fixed-overlay",
|
||||
placement: "TOP_LEFT"
|
||||
} ]
|
||||
} );
|
||||
|
||||
// Scalable overlays are always TOP_LEFT
|
||||
function checkScalableOverlayPosition( contextMessage ) {
|
||||
var viewport = viewer.viewport;
|
||||
|
||||
var expPosition = viewport.viewportToViewerElementCoordinates(
|
||||
new OpenSeadragon.Point( 0.2, 0.1 ) ).apply( Math.floor );
|
||||
var actPosition = $( "#overlay" ).position();
|
||||
equal( actPosition.left, expPosition.x, "X position mismatch " + contextMessage );
|
||||
equal( actPosition.top, expPosition.y, "Y position mismatch " + contextMessage );
|
||||
}
|
||||
|
||||
function checkFixedOverlayPosition( expectedOffset, contextMessage ) {
|
||||
var viewport = viewer.viewport;
|
||||
|
||||
var expPosition = viewport.viewportToViewerElementCoordinates(
|
||||
new OpenSeadragon.Point( 0.5, 0.6 ) )
|
||||
.apply( Math.floor )
|
||||
.plus( expectedOffset );
|
||||
var actPosition = $( "#fixed-overlay" ).position();
|
||||
equal( actPosition.left, expPosition.x, "Fixed overlay X position mismatch " + contextMessage );
|
||||
equal( actPosition.top, expPosition.y, "Fixed overlay Y position mismatch " + contextMessage );
|
||||
}
|
||||
|
||||
waitForViewer( function() {
|
||||
|
||||
checkScalableOverlayPosition( "with TOP_LEFT placement." );
|
||||
checkFixedOverlayPosition( new OpenSeadragon.Point( 0, 0 ),
|
||||
"with TOP_LEFT placement." );
|
||||
|
||||
viewer.updateOverlay( "overlay", scalableOverlayLocation,
|
||||
OpenSeadragon.OverlayPlacement.CENTER );
|
||||
viewer.updateOverlay( "fixed-overlay", fixedOverlayLocation,
|
||||
OpenSeadragon.OverlayPlacement.CENTER );
|
||||
|
||||
setTimeout( function() {
|
||||
checkScalableOverlayPosition( "with CENTER placement." );
|
||||
checkFixedOverlayPosition( new OpenSeadragon.Point( -35, -30 ),
|
||||
"with CENTER placement." );
|
||||
|
||||
viewer.updateOverlay( "overlay", scalableOverlayLocation,
|
||||
OpenSeadragon.OverlayPlacement.BOTTOM_RIGHT );
|
||||
viewer.updateOverlay( "fixed-overlay", fixedOverlayLocation,
|
||||
OpenSeadragon.OverlayPlacement.BOTTOM_RIGHT );
|
||||
setTimeout( function() {
|
||||
checkScalableOverlayPosition( "with BOTTOM_RIGHT placement." );
|
||||
checkFixedOverlayPosition( new OpenSeadragon.Point( -70, -60 ),
|
||||
"with BOTTOM_RIGHT placement." );
|
||||
|
||||
start();
|
||||
}, 100 );
|
||||
|
||||
}, 100 );
|
||||
|
||||
} );
|
||||
} );
|
||||
|
||||
asyncTest( 'Overlays placement and resizing check', function() {
|
||||
|
||||
var fixedOverlayLocation = new OpenSeadragon.Point( 0.5, 0.6 );
|
||||
|
||||
viewer = OpenSeadragon( {
|
||||
id: 'example-overlays',
|
||||
prefixUrl: '/build/openseadragon/images/',
|
||||
tileSources: '/test/data/testpattern.dzi',
|
||||
springStiffness: 100, // Faster animation = faster tests
|
||||
overlays: [ {
|
||||
x: fixedOverlayLocation.x,
|
||||
y: fixedOverlayLocation.y,
|
||||
id: "fixed-overlay",
|
||||
placement: "CENTER",
|
||||
checkResize: true
|
||||
} ]
|
||||
} );
|
||||
|
||||
function checkFixedOverlayPosition( expectedOffset, contextMessage ) {
|
||||
var viewport = viewer.viewport;
|
||||
|
||||
var expPosition = viewport.viewportToViewerElementCoordinates(
|
||||
new OpenSeadragon.Point( 0.5, 0.6 ) )
|
||||
.apply( Math.floor )
|
||||
.plus( expectedOffset );
|
||||
var actPosition = $( "#fixed-overlay" ).position();
|
||||
equal( actPosition.left, expPosition.x, "Fixed overlay X position mismatch " + contextMessage );
|
||||
equal( actPosition.top, expPosition.y, "Fixed overlay Y position mismatch " + contextMessage );
|
||||
}
|
||||
|
||||
waitForViewer( function() {
|
||||
checkFixedOverlayPosition( new OpenSeadragon.Point( -35, -30 ),
|
||||
"with overlay of size 70,60." );
|
||||
|
||||
$( "#fixed-overlay" ).width( 50 );
|
||||
$( "#fixed-overlay" ).height( 40 );
|
||||
|
||||
// The resizing of the overlays is not detected by the viewer's loop.
|
||||
viewer.forceRedraw();
|
||||
|
||||
setTimeout( function() {
|
||||
checkFixedOverlayPosition( new OpenSeadragon.Point( -25, -20 ),
|
||||
"with overlay of size 50,40." );
|
||||
|
||||
// Restore original size
|
||||
$( "#fixed-overlay" ).width( 70 );
|
||||
$( "#fixed-overlay" ).height( 60 );
|
||||
|
||||
start();
|
||||
}, 100 );
|
||||
} );
|
||||
|
||||
} );
|
||||
|
||||
asyncTest( 'Overlays placement and no resizing check', function() {
|
||||
|
||||
var fixedOverlayLocation = new OpenSeadragon.Point( 0.5, 0.6 );
|
||||
|
||||
viewer = OpenSeadragon( {
|
||||
id: 'example-overlays',
|
||||
prefixUrl: '/build/openseadragon/images/',
|
||||
tileSources: '/test/data/testpattern.dzi',
|
||||
springStiffness: 100, // Faster animation = faster tests
|
||||
overlays: [ {
|
||||
x: fixedOverlayLocation.x,
|
||||
y: fixedOverlayLocation.y,
|
||||
id: "fixed-overlay",
|
||||
placement: "CENTER",
|
||||
checkResize: false
|
||||
} ]
|
||||
} );
|
||||
|
||||
function checkFixedOverlayPosition( expectedOffset, contextMessage ) {
|
||||
var viewport = viewer.viewport;
|
||||
|
||||
var expPosition = viewport.viewportToViewerElementCoordinates(
|
||||
new OpenSeadragon.Point( 0.5, 0.6 ) )
|
||||
.apply( Math.floor )
|
||||
.plus( expectedOffset );
|
||||
var actPosition = $( "#fixed-overlay" ).position();
|
||||
equal( actPosition.left, expPosition.x, "Fixed overlay X position mismatch " + contextMessage );
|
||||
equal( actPosition.top, expPosition.y, "Fixed overlay Y position mismatch " + contextMessage );
|
||||
}
|
||||
|
||||
waitForViewer( function() {
|
||||
checkFixedOverlayPosition( new OpenSeadragon.Point( -35, -30 ),
|
||||
"with overlay of size 70,60." );
|
||||
|
||||
$( "#fixed-overlay" ).width( 50 );
|
||||
$( "#fixed-overlay" ).height( 40 );
|
||||
|
||||
// The resizing of the overlays is not detected by the viewer's loop.
|
||||
viewer.forceRedraw();
|
||||
|
||||
setTimeout( function() {
|
||||
checkFixedOverlayPosition( new OpenSeadragon.Point( -35, -30 ),
|
||||
"with overlay of size 50,40." );
|
||||
|
||||
// Restore original size
|
||||
$( "#fixed-overlay" ).width( 70 );
|
||||
$( "#fixed-overlay" ).height( 60 );
|
||||
|
||||
start();
|
||||
}, 100 );
|
||||
} );
|
||||
|
||||
} );
|
||||
|
||||
} )( );
|
||||
|
||||
Loading…
Reference in New Issue
Block a user