renderer

问题 I am having a JTable table1 with 5 rows and 5 columns, and I would like to change the background color of 3rd column/cell of 2nd row, when I call a function like changeBgColor(row,col); Is this possible? 回答1: Override prepareRenderer method for doing that. Example: public Component prepareRenderer (TableCellRenderer renderer, int rowIndex, int columnIndex){ Component componenet = super.prepareRenderer(renderer, rowIndex, columnIndex); if(rowIndex % 2 == 0) { componenet.setBackground(Color.RED

问题 I am using Mobylette with Devise on my Rails 4 app. When I try to sign up, sign in, or reset my password on my mobile device I get this error: ActionController::MissingRenderer (No renderer defined for format: mobile) Has anyone else had this issue? I've tried setting up a fallback chain mobylette_config do |config| config[:fallback_chains] = { mobile: [:mobile, :html] } end and adding this to the devise initializer config.navigational_formats = ['*/*', :html, :mobile] But continue to get the

问题 I'm trying to add a i guess you would call it a sub list to each item on a list. I've built a custom renderer that gives the below output. As you can see something isn't right here an i've had no luck tracking down an answer to my problem. I'm guessing i need to change something in the layout of the panel to get the correct result but no idea what. http://i.stack.imgur.com/jCKjJ.jpg import java.awt.BorderLayout; import java.awt.Component; import java.awt.Container; import java.awt.GridLayout;

问题 In my Electron application, I am seeing weird behavior. In Windows, sometimes the renderer process executes before the initialization of Electron finishes, which is causing the issue in a startup. For eg: I set up a sequelize database and register IPC channels in the constructor of Main.ts file, so as per my knowledge, app.on('ready') event should be fired once the constructor finishes execution but sometimes in Windows OS only, ready events fires even before the database setup, and my

问题 I have a problem while cleaning up my WebGl-Scenes. I'm using Three.js with a WebGlRenderer. In my application I have to change the views quite often and therefore need to render new scenes all the time. Uptil now I destroy and reinitialize the entire Threejs scene. After switching the scenes about 15 - 20 times I get following warning: WARNING: Too many active WebGL contexts. Oldest context will be lost. After switching a couple of times more the context is lost completly and the application

问题 I have a problem while cleaning up my WebGl-Scenes. I'm using Three.js with a WebGlRenderer. In my application I have to change the views quite often and therefore need to render new scenes all the time. Uptil now I destroy and reinitialize the entire Threejs scene. After switching the scenes about 15 - 20 times I get following warning: WARNING: Too many active WebGL contexts. Oldest context will be lost. After switching a couple of times more the context is lost completly and the application

问题 Hi i am using electron+vuejs and trying to receive data from electron's main process .That is some data is sent from main process to renderer process.And inside the renderer process i have ipcRenderer.on() in created() or mounted().But the data is not received there.And the text is not updated on the screen.My code is like shown below:Note even if i use mounted() it is not working .What am i doing wrong?How can i resolve this ? <div>{{logText}}</div> data(){ return { logText:'' } }, created()

来源： https://stackoverflow.com/questions/49822754/either-i-am-using-angular-renerer2-wrong-or-it-is-broken-can-anyone-figure-thi

问题 Is there a method for a combobox in Java that will center the items in the combobox? I tried this but it didn't work: myCombobox.setAlignmentY(CENTER_ALIGNMENT); Thanks! 回答1: Try this link: How to Use Combo Boxes (The Java™ Tutorials > Creating a GUI With JFC/Swing > Using Swing Components) class ComboBoxRenderer extends JLabel implements ListCellRenderer { public ComboBoxRenderer() { setOpaque(true); setHorizontalAlignment(CENTER); setVerticalAlignment(CENTER); } //. . . or ((JLabel)comboBox

问题 I would like to show an Open Dialog box from within a rendered script. I am getting conflicting information from different sources, but, as far as I can tell, the documentation at https://electronjs.org/docs/api/dialog suggests I should be able to use: const dialog = require('electron').remote.dialog; dialog.showOpenDialog({ title: '…', defaultPath: '…' }) .then(data=>console.log(data)); The error message I get is: TypeError: dialog.showOpenDialog(...).then is not a function That suggests