renderer | 易学教程

convert html to image in byte array java

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How can i easily convert html to image and then to byte array without create it thanks If you do not have any complex html you can render it using a normal JLabel . The code below will produce this image: <html> <h1>:)</h1> Hello World!<br> <img src="http://img0.gmodules.com/ig/images/igoogle_logo_sm.png"> </html> public static void main(String... args) throws IOException { String html = "<html>" + "<h1>:)</h1>" + "Hello World!<br>" + "<img src=\"http://img0.gmodules.com/ig/images/igoogle_logo_sm.png\">" + "</html>"; JLabel label = new JLabel(html); label.setSize(200, 120); BufferedImage image

Show BarChar In JTable Column In Java

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I have JTable in that I need to Show Chart but i have tired several Code but not able to achieve waht i wanted to make. here what i have tried so far http://www.jroller.com/Thierry/entry/swing_barchart_rendering_in_a and i want to achieve according to this image but how ever i dont get any Render-er for same. Please Any suggestion will be welcomed. Okay, here's an idea... Instead of using a JTable , you could create a layout manager which would calculate the offsets and allow for elements to overlap "columns" Prototype example - !! DO NOT USE IN PRODUCTION !! This is an EXAMPLE only and should

Difficulties understanding the renderers mechanism of swing's JTable and JTree

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Often, when using JTable or JTree user writes and assign it is own specific cell renderer. It is very common to inherit user's component from DefaultTableCellRenderer , and implements the renderer method getTableCellRendererComponent . It turns out that DefaultTableCellRenderer in fact inherits from JLabel, thus returns himself (this) when called to super (at the render method) and thus user's renderer can similarly returns himself (this) as well. And it all works well. My question is how can it be? Each time this method is called by the table, it is given different parameters, and the output

Custom TableCellRenderer/TreeTableCellRenderer doesn't render Table cells

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问题 I made this CustomCellRenderer class intended to be used in JXTreeTable and JXTable objects since I have many of these in my project. So this class implements TreeCellRenderer and TableCellRenderer interfaces: public class CustomCellRenderer extends JLabel implements TreeCellRenderer, TableCellRenderer { @Override public Component getTreeCellRendererComponent(JTree tree, Object value, boolean selected, boolean expanded, boolean leaf, int row, boolean hasFocus) { setBackground(selected ? new

How can I find the maximum texture size for different phones?

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问题 I'm trying to find out the maximum texture size for the original Motorola Droid. I believe the G1 has a maximum texture size of 512, but it would be nice if there was a more official way I could find out so I can build a proper tile system. 回答1: You can request the max texture size using glGetIntegerv: int[] maxTextureSize = new int[1]; gl.glGetIntegerv(GL10.GL_MAX_TEXTURE_SIZE, maxTextureSize, 0); Log.i("glinfo", "Max texture size = " + maxTextureSize[0]); 回答2: Also check out http://www

What is the relationship between component family, component type and renderer type?

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When I am learning custom component development in JSF, I got confused with the relationship between component family, component type and renderer type. For example, I registered a renderer and a custom component as shown below. faces-config.xml : <component> <component-type>study.faces.Div</component-type> <component-class>javax.faces.component.UIPanel</component-class> </component> <render-kit> <render-kit-id>HTML_BASIC</render-kit-id> <renderer> <component-family>javax.faces.Panel</component-family> <renderer-type>study.faces.DivRenderer</renderer-type> <renderer-class>com.study.ui

PDF Library for Android - PDFBox? [closed]

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Wich libraries exists to use to draw PDF files on Android? I found PDFBox, that is a JSE Library, and want to know if somehow it can be used to draw the PDFs on Android. I know Android converts Standard bytecodes into Dalvik Bytecodes, but how it will convert classes like BufferedImage that the framework can convert PDF Files into? Any suggestion is helpfully, even for paid libraries. 2bard PDF read/writing is a big problem for Android. A quick search on Stackoverflow will reveal many developers looking for solutions. So far, the most popular solution is to use a webview and use the google

Show BarChar In JTable Column In Java

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问题 I have JTable in that I need to Show Chart but i have tired several Code but not able to achieve waht i wanted to make. here what i have tried so far http://www.jroller.com/Thierry/entry/swing_barchart_rendering_in_a and i want to achieve according to this image but how ever i dont get any Render-er for same. Please Any suggestion will be welcomed. 回答1: Okay, here's an idea... Instead of using a JTable , you could create a layout manager which would calculate the offsets and allow for

Put JTable in the JTree

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in connection with thread Jtable as a Jtree Node I put JTable to JTree, but JTree View isn't rendered correctly on start_up, how can I setPreferredSize for JTable , because PreferredScrollableViewportSize shrinked JTable with rendering TableHeader + one Row , one Row remain hidden, but after expanding Node(s) TreeRenderer change and repaint the setPreferredSize to the expected Dimension import java.awt.*; import javax.swing.*; import javax.swing.table.DefaultTableModel; import javax.swing.tree.*; public class TreeWithTableRenderer extends JFrame { private static final long serialVersionUID =

Difficulties understanding the renderers mechanism of swing's JTable and JTree

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问题 Often, when using JTable or JTree user writes and assign it is own specific cell renderer. It is very common to inherit user's component from DefaultTableCellRenderer , and implements the renderer method getTableCellRendererComponent . It turns out that DefaultTableCellRenderer in fact inherits from JLabel, thus returns himself (this) when called to super (at the render method) and thus user's renderer can similarly returns himself (this) as well. And it all works well. My question is how can