📄 imageobserver.html
字号:
A container class which implements automatic horizontal and/or vertical scrolling for a single child component.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> class</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../java/awt/TextArea.html">TextArea</A></B></CODE><BR> A <code>TextArea</code> object is a multi-line region that displays text.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> class</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../java/awt/TextComponent.html">TextComponent</A></B></CODE><BR> The <code>TextComponent</code> class is the superclass of any component that allows the editing of some text.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> class</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../java/awt/TextField.html">TextField</A></B></CODE><BR> A <code>TextField</code> object is a text component that allows for the editing of a single line of text.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> class</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../java/awt/Window.html">Window</A></B></CODE><BR> A <code>Window</code> object is a top-level window with no borders and no menubar.</TD></TR></TABLE> <P><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"><TD COLSPAN=2>Methods in <A HREF="../../../../java/awt/package-summary.html">java.awt</A> with parameters of type <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B>Component.</B><B><A HREF="../../../../java/awt/Component.html#prepareImage(java.awt.Image, java.awt.image.ImageObserver)">prepareImage</A></B>(<A HREF="../../../../java/awt/Image.html">Image</A> image, <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Prepares an image for rendering on this component.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B>Component.</B><B><A HREF="../../../../java/awt/Component.html#prepareImage(java.awt.Image, int, int, java.awt.image.ImageObserver)">prepareImage</A></B>(<A HREF="../../../../java/awt/Image.html">Image</A> image, int width, int height, <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Prepares an image for rendering on this component at the specified width and height.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B>Component.</B><B><A HREF="../../../../java/awt/Component.html#checkImage(java.awt.Image, java.awt.image.ImageObserver)">checkImage</A></B>(<A HREF="../../../../java/awt/Image.html">Image</A> image, <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Returns the status of the construction of a screen representation of the specified image.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B>Component.</B><B><A HREF="../../../../java/awt/Component.html#checkImage(java.awt.Image, int, int, java.awt.image.ImageObserver)">checkImage</A></B>(<A HREF="../../../../java/awt/Image.html">Image</A> image, int width, int height, <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Returns the status of the construction of a screen representation of the specified image.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract boolean</CODE></FONT></TD><TD><CODE><B>Graphics.</B><B><A HREF="../../../../java/awt/Graphics.html#drawImage(java.awt.Image, int, int, java.awt.image.ImageObserver)">drawImage</A></B>(<A HREF="../../../../java/awt/Image.html">Image</A> img, int x, int y, <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Draws as much of the specified image as is currently available.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract boolean</CODE></FONT></TD><TD><CODE><B>Graphics.</B><B><A HREF="../../../../java/awt/Graphics.html#drawImage(java.awt.Image, int, int, int, int, java.awt.image.ImageObserver)">drawImage</A></B>(<A HREF="../../../../java/awt/Image.html">Image</A> img, int x, int y, int width, int height, <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Draws as much of the specified image as has already been scaled to fit inside the specified rectangle.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract boolean</CODE></FONT></TD><TD><CODE><B>Graphics.</B><B><A HREF="../../../../java/awt/Graphics.html#drawImage(java.awt.Image, int, int, java.awt.Color, java.awt.image.ImageObserver)">drawImage</A></B>(<A HREF="../../../../java/awt/Image.html">Image</A> img, int x, int y, <A HREF="../../../../java/awt/Color.html">Color</A> bgcolor, <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Draws as much of the specified image as is currently available.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract boolean</CODE></FONT></TD><TD><CODE><B>Graphics.</B><B><A HREF="../../../../java/awt/Graphics.html#drawImage(java.awt.Image, int, int, int, int, java.awt.Color, java.awt.image.ImageObserver)">drawImage</A></B>(<A HREF="../../../../java/awt/Image.html">Image</A> img, int x, int y, int width, int height, <A HREF="../../../../java/awt/Color.html">Color</A> bgcolor, <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Draws as much of the specified image as has already been scaled to fit inside the specified rectangle.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract boolean</CODE></FONT></TD><TD><CODE><B>Graphics.</B><B><A HREF="../../../../java/awt/Graphics.html#drawImage(java.awt.Image, int, int, int, int, int, int, int, int, java.awt.image.ImageObserver)">drawImage</A></B>(<A HREF="../../../../java/awt/Image.html">Image</A> img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Draws as much of the specified area of the specified image as is currently available, scaling it on the fly to fit inside the specified area of the destination drawable surface.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract boolean</CODE></FONT></TD><TD><CODE><B>Graphics.</B><B><A HREF="../../../../java/awt/Graphics.html#drawImage(java.awt.Image, int, int, int, int, int, int, int, int, java.awt.Color, java.awt.image.ImageObserver)">drawImage</A></B>(<A HREF="../../../../java/awt/Image.html">Image</A> img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, <A HREF="../../../../java/awt/Color.html">Color</A> bgcolor, <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Draws as much of the specified area of the specified image as is currently available, scaling it on the fly to fit inside the specified area of the destination drawable surface.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract boolean</CODE></FONT></TD><TD><CODE><B>Graphics2D.</B><B><A HREF="../../../../java/awt/Graphics2D.html#drawImage(java.awt.Image, java.awt.geom.AffineTransform, java.awt.image.ImageObserver)">drawImage</A></B>(<A HREF="../../../../java/awt/Image.html">Image</A> img, <A HREF="../../../../java/awt/geom/AffineTransform.html">AffineTransform</A> xform, <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> obs)</CODE><BR> Renders an image, applying a transform from image space into user space before drawing.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract boolean</CODE></FONT></TD><TD><CODE><B>Toolkit.</B><B><A HREF="../../../../java/awt/Toolkit.html#prepareImage(java.awt.Image, int, int, java.awt.image.ImageObserver)">prepareImage</A></B>(<A HREF="../../../../java/awt/Image.html">Image</A> image, int width, int height, <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Prepares an image for rendering.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract int</CODE></FONT></TD><TD><CODE><B>Toolkit.</B><B><A HREF="../../../../java/awt/Toolkit.html#checkImage(java.awt.Image, int, int, java.awt.image.ImageObserver)">checkImage</A></B>(<A HREF="../../../../java/awt/Image.html">Image</A> image, int width, int height, <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Indicates the construction status of a specified image that is being prepared for display.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract int</CODE></FONT></TD><TD><CODE><B>Image.</B><B><A HREF="../../../../java/awt/Image.html#getWidth(java.awt.image.ImageObserver)">getWidth</A></B>(<A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Determines the width of the image.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract int</CODE></FONT></TD><TD><CODE><B>Image.</B><B><A HREF="../../../../java/awt/Image.html#getHeight(java.awt.image.ImageObserver)">getHeight</A></B>(<A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Determines the height of the image.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract <A HREF="../../../../java/lang/Object.html">Object</A></CODE></FONT></TD><TD><CODE><B>Image.</B><B><A HREF="../../../../java/awt/Image.html#getProperty(java.lang.String, java.awt.image.ImageObserver)">getProperty</A></B>(<A HREF="../../../../java/lang/String.html">String</A> name, <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Gets a property of this image by name.</TD></TR></TABLE> <P><A NAME="java.awt.image"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2">Uses of <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> in <A HREF="../../../../java/awt/image/package-summary.html">java.awt.image</A></FONT></TD></TR></TABLE> <P><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"><TD COLSPAN=2>Methods in <A HREF="../../../../java/awt/image/package-summary.html">java.awt.image</A> with parameters of type <A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B>BufferedImage.</B><B><A HREF="../../../../java/awt/image/BufferedImage.html#getWidth(java.awt.image.ImageObserver)">getWidth</A></B>(<A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Returns the actual width of the image.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B>BufferedImage.</B><B><A HREF="../../../../java/awt/image/BufferedImage.html#getHeight(java.awt.image.ImageObserver)">getHeight</A></B>(<A HREF="../../../../java/awt/image/ImageObserver.html">ImageObserver</A> observer)</CODE><BR> Returns the actual height of the image.</TD>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -