com.teamdev.jxbrowser.chromium

Class ZoomService

java.lang.Object

com.teamdev.jxbrowser.chromium.ZoomService

public final class ZoomService
extends java.lang.Object

Provides access to zoom configuration.

提供对缩放配置的访问。

Method Summary

Modifier and Type	Method and Description
void	addZoomListener(ZoomListener listener) Adds the specified zoom listener to receive browser zoom change events from this browser instance. 添加指定的缩放侦听器以从此浏览器实例接收浏览器缩放更改事件。
double	getDefaultZoomLevel() Returns the default zoom level for pages that don't override it. 返回不覆盖它的页面的默认缩放级别。
java.util.List<ZoomListener>	getZoomListeners() Returns a list of all the browser zoom listeners registered on this browser. 返回在此浏览器上注册的所有浏览器缩放侦听器的列表。
void	removeZoomListener(ZoomListener listener) Removes the specified zoom listener so that it no longer receives browser zoom change events from this browser instance. 删除指定的缩放侦听器，使其不再从该浏览器实例接收浏览器缩放更改事件。
void	setDefaultZoomLevel(double level) Sets the default zoom level for pages that don't override it. 为不覆盖它的页面设置默认缩放级别。

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getDefaultZoomLevel

public double getDefaultZoomLevel()

Returns the default zoom level for pages that don't override it.

返回不覆盖它的页面的默认缩放级别。

setDefaultZoomLevel

public void setDefaultZoomLevel(double level)

Sets the default zoom level for pages that don't override it. This method is executed synchronously, so it blocks current thread execution until zoom level is set successfully.

To zoom in use the positive zoom level. For example, 2.0, 1.5.
To zoom out use the negative zoom level. For example, -1.0, -2.5.

Zoom level isn't a percentage value and 1.0 isn't equal to 100%. Zoom level is a Chromium level. To understand percentages for each zoom levels please see the following table:

25% : "default_zoom_level": -7.6035680338478615,
33% : "default_zoom_level": -6.0311726618503405,
50% : "default_zoom_level": -3.8017840169239308,
67% : "default_zoom_level": -2.2293886449264093,
75% : "default_zoom_level": -1.5778829311823859,
90% : "default_zoom_level": -0.5778829311823857,
100% : "default_zoom_level": 0.0,
110% : "default_zoom_level": 0.5227586988632231,
125% : "default_zoom_level": 1.2239010857415449,
150% : "default_zoom_level": 2.223901085741545,
175% : "default_zoom_level": 3.069389038663465,
200% : "default_zoom_level": 3.8017840169239308,
250% : "default_zoom_level": 5.025685102665476,
300% : "default_zoom_level": 6.025685102665476,
400% : "default_zoom_level": 7.6035680338478615,
500% : "default_zoom_level": 8.827469119589406

为不覆盖它的页面设置默认缩放级别。此方法是同步执行的，因此它将阻止当前线程执行，直到成功设置缩放级别为止。要放大，请使用正变焦等级。例如，2.0、1.5。要缩小，请使用负缩放级别。例如，-1.0，-2.5。缩放级别不是百分比值，并且1.0不等于100％。缩放级别是铬级别。要了解每个缩放级别的百分比，请参见下表：25％：“ default_zoom_level”：-7.6035680338478615，33％：“ default_zoom_level”：-6.0311726618503405405，50％：“ default_zoom_level”：-3.8017840169239308，67％：“ default_zoom_level”： -2.2293886449264093，75％：“ default_zoom_level”：-1.5778829311823859，90％：“ default_zoom_level”：-0.5778829311823857，100％：“ default_zoom_level”：0.0，110％：“ default_zoom_level”：0.5227586988632231，125％：“ default_zoom_level”：1.2239010857415 150％：“ default_zoom_level”：2.223901085741545，175％：“ default_zoom_level”：3.069389038663465，200％：“ default_zoom_level”：3.8017840169239308，250％：“ default_zoom_level”：5.025685102665476，300％：“ default_zoom_level”：6.025685102665476，400 “：7.6035680338478615，500％：” default_zoom_level“：8.827469119589406

addZoomListener

public void addZoomListener(ZoomListener listener)

Adds the specified zoom listener to receive browser zoom change events from this browser instance.

If listener listener is null, no exception is thrown and no action is performed.

添加指定的缩放侦听器以从此浏览器实例接收浏览器缩放更改事件。如果listener listener为null，则不会引发任何异常并且不执行任何操作。

Parameters:

listener - the browser zoom listener. -浏览器缩放侦听器。

removeZoomListener

public void removeZoomListener(ZoomListener listener)

Removes the specified zoom listener so that it no longer receives browser zoom change events from this browser instance.

删除指定的缩放侦听器，使其不再从该浏览器实例接收浏览器缩放更改事件。

Parameters:

listener - the browser zoom listener. -浏览器缩放侦听器。

getZoomListeners

public java.util.List<ZoomListener> getZoomListeners()

Returns a list of all the browser zoom listeners registered on this browser.

返回在此浏览器上注册的所有浏览器缩放侦听器的列表。

Returns:

all of this browser's ZoomListeners or an empty list if no browser zoom listeners are currently registered. 此浏览器的所有s或一个空列表（如果当前未注册任何浏览器缩放侦听器）。