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Renamed subPixelRounding to subPixelRoundingForTransparency, changed fallback to '*', introduced SUBPIXEL_ROUNDING_OCCURRENCES numbers, added support for simple mode

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Sebastien ROBERT 2021-12-21 11:38:52 +09:00
parent e5b608d86a
commit 2aebdbd066
3 changed files with 75 additions and 59 deletions
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40
src/openseadragon.js
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@ -209,12 +209,16 @@
* You can pass a CSS color value like "#FF8800".
* When passing a function the tiledImage and canvas context are available as argument which is useful when you draw a gradient or pattern.
*
* @property {Object} [subPixelRounding=null]
* Determines when subpixel rounding should be applied for tiles rendering.
* This property is a subpixel rounding enum values dictionary [number] --> string.
* The key is a $.BROWSERS value, and the value is one of 'ALWAYS', 'ONLY_AT_REST' or 'NEVER',
* @property {Object} [subPixelRoundingForTransparency=null]
* Determines when subpixel rounding should be applied for tiles when rendering images that support transparency.
* This property is a subpixel rounding enum values dictionary [{@link BROWSERS}] --> {@link SUBPIXEL_ROUNDING_OCCURRENCES}.
* The key is a {@link BROWSERS} value, and the value is one of {@link SUBPIXEL_ROUNDING_OCCURRENCES},
* indicating, for a given browser, when to apply subpixel rounding.
* Key '' is the fallback value for any browser not specified in the dictionary.
* Key '*' is the fallback value for any browser not specified in the dictionary.
* This property has a simple mode, and one can set it directly to
* {@link SUBPIXEL_ROUNDING_OCCURRENCES.NEVER}, {@link SUBPIXEL_ROUNDING_OCCURRENCES.ONLY_AT_REST} or {@link SUBPIXEL_ROUNDING_OCCURRENCES.ALWAYS}
* in order to apply this rule for all browser. The values {@link SUBPIXEL_ROUNDING_OCCURRENCES.ALWAYS} would be equivalent to { '*', SUBPIXEL_ROUNDING_OCCURRENCES.ALWAYS }.
* The default is {@link SUBPIXEL_ROUNDING_OCCURRENCES.NEVER} for all browsers, for backward compatibility reason.
*
* @property {Number} [degrees=0]
* Initial rotation.
@ -1265,12 +1269,12 @@ function OpenSeadragon( options ){
flipped: false,
// APPEARANCE
opacity: 1,
preload: false,
compositeOperation: null,
imageSmoothingEnabled: true,
placeholderFillStyle: null,
subPixelRounding: null,
opacity: 1,
preload: false,
compositeOperation: null,
imageSmoothingEnabled: true,
placeholderFillStyle: null,
subPixelRoundingForTransparency: null,
//REFERENCE STRIP SETTINGS
showReferenceStrip: false,
@ -1411,6 +1415,20 @@ function OpenSeadragon( options ){
CHROMEEDGE: 7
},
/**
* An enumeration of Browser vendors.
* @static
* @type {Object}
* @property {Number} NEVER Never apply subpixel rounding for transparency.
* @property {Number} ONLY_AT_REST Do not apply subpixel rounding for transparency during animation (panning, zoom, rotation) and apply it once animation is over.
* @property {Number} ALWAYS Apply subpixel rounding for transparency during animation and when animation is over.
*/
SUBPIXEL_ROUNDING_OCCURRENCES: {
NEVER: 0,
ONLY_AT_REST: 1,
ALWAYS: 2
},
/**
* Keep track of which {@link Viewer}s have been created.
* - Key: {@link Element} to which a Viewer is attached.

92
src/tiledimage.js
View File

@ -160,25 +160,25 @@ $.TiledImage = function( options ) {
_hasOpaqueTile: false, // Do we have even one fully opaque tile?
_tilesLoading: 0, // The number of pending tile requests.
//configurable settings
springStiffness: $.DEFAULT_SETTINGS.springStiffness,
animationTime: $.DEFAULT_SETTINGS.animationTime,
minZoomImageRatio: $.DEFAULT_SETTINGS.minZoomImageRatio,
wrapHorizontal: $.DEFAULT_SETTINGS.wrapHorizontal,
wrapVertical: $.DEFAULT_SETTINGS.wrapVertical,
immediateRender: $.DEFAULT_SETTINGS.immediateRender,
blendTime: $.DEFAULT_SETTINGS.blendTime,
alwaysBlend: $.DEFAULT_SETTINGS.alwaysBlend,
minPixelRatio: $.DEFAULT_SETTINGS.minPixelRatio,
smoothTileEdgesMinZoom: $.DEFAULT_SETTINGS.smoothTileEdgesMinZoom,
iOSDevice: $.DEFAULT_SETTINGS.iOSDevice,
debugMode: $.DEFAULT_SETTINGS.debugMode,
crossOriginPolicy: $.DEFAULT_SETTINGS.crossOriginPolicy,
ajaxWithCredentials: $.DEFAULT_SETTINGS.ajaxWithCredentials,
placeholderFillStyle: $.DEFAULT_SETTINGS.placeholderFillStyle,
opacity: $.DEFAULT_SETTINGS.opacity,
preload: $.DEFAULT_SETTINGS.preload,
compositeOperation: $.DEFAULT_SETTINGS.compositeOperation,
subPixelRounding: $.DEFAULT_SETTINGS.subPixelRounding
springStiffness: $.DEFAULT_SETTINGS.springStiffness,
animationTime: $.DEFAULT_SETTINGS.animationTime,
minZoomImageRatio: $.DEFAULT_SETTINGS.minZoomImageRatio,
wrapHorizontal: $.DEFAULT_SETTINGS.wrapHorizontal,
wrapVertical: $.DEFAULT_SETTINGS.wrapVertical,
immediateRender: $.DEFAULT_SETTINGS.immediateRender,
blendTime: $.DEFAULT_SETTINGS.blendTime,
alwaysBlend: $.DEFAULT_SETTINGS.alwaysBlend,
minPixelRatio: $.DEFAULT_SETTINGS.minPixelRatio,
smoothTileEdgesMinZoom: $.DEFAULT_SETTINGS.smoothTileEdgesMinZoom,
iOSDevice: $.DEFAULT_SETTINGS.iOSDevice,
debugMode: $.DEFAULT_SETTINGS.debugMode,
crossOriginPolicy: $.DEFAULT_SETTINGS.crossOriginPolicy,
ajaxWithCredentials: $.DEFAULT_SETTINGS.ajaxWithCredentials,
placeholderFillStyle: $.DEFAULT_SETTINGS.placeholderFillStyle,
opacity: $.DEFAULT_SETTINGS.opacity,
preload: $.DEFAULT_SETTINGS.preload,
compositeOperation: $.DEFAULT_SETTINGS.compositeOperation,
subPixelRoundingForTransparency: $.DEFAULT_SETTINGS.subPixelRoundingForTransparency
}, options );
this._preload = this.preload;
@ -1958,39 +1958,39 @@ function compareTiles( previousBest, tile ) {
* Defines the value for subpixel rounding to fallback to in case of missing or
* invalid value.
*/
var DEFAULT_SUBPIXEL_ROUNDING_RULE = 'NEVER';
var DEFAULT_SUBPIXEL_ROUNDING_RULE = $.SUBPIXEL_ROUNDING_OCCURRENCES.NEVER;
/**
* @private
* @inner
* Determines whether the subpixel rounding enum value is 'ALWAYS' or not.
* Determines whether the subpixel rounding enum value is {@link SUBPIXEL_ROUNDING_OCCURRENCES.ALWAYS} or not.
*
* @param {string} value - The subpixel rounding enum value to check, case sensitive.
* @returns {Boolean} True if input value is 'ALWAYS', false otherwise.
* @param {SUBPIXEL_ROUNDING_OCCURRENCES} value - The subpixel rounding enum value to check.
* @returns {Boolean} True if input value is {@link SUBPIXEL_ROUNDING_OCCURRENCES.ALWAYS}, false otherwise.
*/
function isSubPixelRoundingRuleAlways(value) {
return value === 'ALWAYS';
return value === $.SUBPIXEL_ROUNDING_OCCURRENCES.ALWAYS;
}
/**
* @private
* @inner
* Determines whether the subpixel rounding enum value is 'ONLY_AT_REST' or not.
* Determines whether the subpixel rounding enum value is {@link SUBPIXEL_ROUNDING_OCCURRENCES.ONLY_AT_REST} or not.
*
* @param {string} value - The subpixel rounding enum value to check, case sensitive.
* @returns {Boolean} True if input value is 'ONLY_AT_REST', false otherwise.
* @param {SUBPIXEL_ROUNDING_OCCURRENCES} value - The subpixel rounding enum value to check.
* @returns {Boolean} True if input value is {@link SUBPIXEL_ROUNDING_OCCURRENCES.ONLY_AT_REST}, false otherwise.
*/
function isSubPixelRoundingRuleOnlyAtRest(value) {
return value === 'ONLY_AT_REST';
return value === $.SUBPIXEL_ROUNDING_OCCURRENCES.ONLY_AT_REST;
}
/**
* @private
* @inner
* Determines whether the subpixel rounding enum value is 'NEVER' or not.
* Determines whether the subpixel rounding enum value is {@link SUBPIXEL_ROUNDING_OCCURRENCES.NEVER} or not.
*
* @param {string} value - The subpixel rounding enum value to check, case sensitive.
* @returns {Boolean} True if input value is 'NEVER', false otherwise.
* @param {SUBPIXEL_ROUNDING_OCCURRENCES} value - The subpixel rounding enum value to check.
* @returns {Boolean} True if input value is {@link SUBPIXEL_ROUNDING_OCCURRENCES.NEVER}, false otherwise.
*/
function isSubPixelRoundingRuleNever(value) {
return value === DEFAULT_SUBPIXEL_ROUNDING_RULE;
@ -2001,12 +2001,9 @@ function isSubPixelRoundingRuleAlways(value) {
* @inner
* Checks whether the input value is an invalid subpixel rounding enum value.
*
* @param {string} value - The subpixel rounding enum value to check, case sensitive.
* @param {SUBPIXEL_ROUNDING_OCCURRENCES} value - The subpixel rounding enum value to check.
* @returns {Boolean} Returns true if the input value is none of the expected
* 'ALWAYS', 'ONLY_AT_REST' or 'NEVER' value.
* Note that if passed a valid value but with the incorrect casing, the return
* value will be true. If input is 'always', then true is returned, indicating
* it is an unknown value.
* {@link SUBPIXEL_ROUNDING_OCCURRENCES.ALWAYS}, {@link SUBPIXEL_ROUNDING_OCCURRENCES.ONLY_AT_REST} or {@link SUBPIXEL_ROUNDING_OCCURRENCES.NEVER} value.
*/
function isSubPixelRoundingRuleUnknown(value) {
return !isSubPixelRoundingRuleAlways(value) &&
@ -2018,13 +2015,10 @@ function isSubPixelRoundingRuleAlways(value) {
* @private
* @inner
* Ensures the returned value is always a valid subpixel rounding enum value,
* defaulting to 'NEVER' if input is missing or invalid.
* defaulting to {@link SUBPIXEL_ROUNDING_OCCURRENCES.NEVER} if input is missing or invalid.
*
* @param {string} value - The subpixel rounding enum value to normalize, case sensitive.
* @returns {string} Returns a valid subpixel rounding enum value.
* Note that if passed a valid value but with the incorrect casing, the return
* value will be the default 'NEVER'. If input is 'always', then 'NEVER' is
* returned.
* @param {SUBPIXEL_ROUNDING_OCCURRENCES} value - The subpixel rounding enum value to normalize.
* @returns {SUBPIXEL_ROUNDING_OCCURRENCES} Returns a valid subpixel rounding enum value.
*/
function normalizeSubPixelRoundingRule(value) {
if (isSubPixelRoundingRuleUnknown(value)) {
@ -2039,19 +2033,23 @@ function isSubPixelRoundingRuleAlways(value) {
* Ensures the returned value is always a valid subpixel rounding enum value,
* defaulting to 'NEVER' if input is missing or invalid.
*
* @param {Object} subPixelRoundingRules - A subpixel rounding enum values dictionary [number] --> string.
* @returns {string} Returns the determined subpixel rounding enum value for the
* @param {Object} subPixelRoundingRules - A subpixel rounding enum values dictionary [{@link BROWSERS}] --> {@link SUBPIXEL_ROUNDING_OCCURRENCES}.
* @returns {SUBPIXEL_ROUNDING_OCCURRENCES} Returns the determined subpixel rounding enum value for the
* current browser.
*/
function determineSubPixelRoundingRule(subPixelRoundingRules) {
if (typeof subPixelRoundingRules === 'number') {
return normalizeSubPixelRoundingRule(subPixelRoundingRules);
}
if (!subPixelRoundingRules || !$.Browser) {
return DEFAULT_SUBPIXEL_ROUNDING_RULE;
}
var subPixelRoundingRule = subPixelRoundingRules[$.Browser.vendor];
if (!subPixelRoundingRule || isSubPixelRoundingRuleUnknown(subPixelRoundingRule)) {
subPixelRoundingRule = subPixelRoundingRules[''];
if (isSubPixelRoundingRuleUnknown(subPixelRoundingRule)) {
subPixelRoundingRule = subPixelRoundingRules['*'];
}
return normalizeSubPixelRoundingRule(subPixelRoundingRule);
@ -2205,7 +2203,7 @@ function drawTiles( tiledImage, lastDrawn ) {
tiledImage._drawer.drawRectangle(placeholderRect, fillStyle, useSketch);
}
var subPixelRoundingRule = determineSubPixelRoundingRule(tiledImage.subPixelRounding);
var subPixelRoundingRule = determineSubPixelRoundingRule(tiledImage.subPixelRoundingForTransparency);
var shouldRoundPositionAndSize = false;

2
src/viewer.js
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@ -1495,7 +1495,7 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
loadTilesWithAjax: queueItem.options.loadTilesWithAjax,
ajaxHeaders: queueItem.options.ajaxHeaders,
debugMode: _this.debugMode,
subPixelRounding: _this.subPixelRounding
subPixelRoundingForTransparency: _this.subPixelRoundingForTransparency
});
if (_this.collectionMode) {