awt

问题 I'm currently trying to make a game with a menu. Menu looks like this. http://puu.sh/xGoC Ideally, when I push a button, it will bring me to the game. The game looks like this. http://puu.sh/xGoV I currently initialize a JFrame() in my main class which runs either the menu class or the game class (Both of which are JPanels). How would I go about using CardLayout to make it so that I can initialize the game menu and when I click a button, change the panel to the game panel? 回答1: I've got some

问题 I have written a Java code to draw a polygon on an image. When I put my cursor inside the polygon it prints "Inside" otherwise "Outside". So the detection of the points inside the polygon is working fine. But I want to implement the effect of setToolTipText inside the polygon i.e. at the time of mouse hover inside the polygon, it will show the floating text "Inside". Similar to the effect in this image: http://www.java2s.com/Code/Java/Swing-JFC/WorkingwithTooltipText.htm What are the minimal

问题 I want to stream desktop screen captures using sockets. I don't know the exact way to do this, so I went with AWT's robot :) Robot robot = new Robot(); BufferedImage image = robot.createScreenCapture(screenRectangle); The problem is that images coming from the robot are too large to make a stream. A 1440x900 capture is about 0.3MB and I can't transfer it fast enough to create a smooth 24fps stream. Currently I'm using a TCP socket, because I had problems cutting down the image into multiple

问题 In a JFrame, when I click on 'login', I pop up another Jframe which is the login window. How do I make my main Jframe wait for my login Jframe to exit, before doing anything else? 回答1: Just use a modal dialog in stead of a frame, that way you cannot do anything else until it'is closed see http://mindprod.com/jgloss/modal.html for explanation and see http://www.java2s.com/Tutorial/Java/0240__Swing/ASimpleModalDialog.htm for code example If you insist on using a JFrame, you could use a

问题 The Code private MainApp() /* Extends JFrame */{ DisplayMode displayMode = new DisplayMode(800, 600, 16, 75); ScreenManager.setFullScreenWindow(displayMode, this); } The Problem Whenever I call: JOptionPane.showMessageDialog(MainApp.getInstance(), "Test Message Box"); The Window minimizes for some reason, then I have to re-activate it. The Message Box shows after I re-activate the Window. The Question Is there any way to stop the Fullscreen Window from minimizing when I call the Message Box?

问题 Yesterday I ask a question about how to draw a bounding box to hold a shape inside and how to drag and drop that selected shape . The first question is solved. But I'm having some trouble to move the shape. Is there any especific transformations to move a shape around the jPanel? I have this code: public boolean drag(MouseEvent e) { if(points.isEmpty()) //if point's vector is empty return false; if(!selected) return false; int x = e.getX(), y = e.getX(); if (!dragging) lastMovePoint

问题 I am attempting to create a java.awt.Font instance from a TTF file on my system, but only some fonts are able to load without error. The code below is some test code I found online. When run on my system, it is able to load 285 fonts successfully (ex. Arial.ttf), but fails on 83 fonts, (ex. AmericanTypewriter.ttf). All errors are of the form FontFormatException: Font name not found with no embedded cause. Are there known issues with java.awt.Font and format compatibility? I can't find

问题 I want to switch between JPanels by clicking buttons on the JPanels. For example: I have a JPanel sim with a JButton simknop and a JPanel help with JButton helpknop I want to switch between these 2 JPanels by clicking the buttons. When I click JButton simknop JPanel help should appear and when I click JButton help JPanel sim should appear. Below you can find the different classes: main.java public class main extends JFrame { JPanel cards; sim sim; help help; public main() { this.setSize(1024

问题 The attempt is to enable drawing of figures(a line for now) with mouse on the awt canvas . Iam trying out java graphics for the first time . So not sure how to go about it . This is my first attempt : package def.grafi; import java.awt.Canvas; import java.awt.Frame; import java.awt.Graphics; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO; public class Dra {

问题 What is the simplest way to create AffineTransform which maps coordinates from one rectangle to another (float/double rectangles are given)? UPDATE 1 Rectangles can be absolutely different. For example [(0,0)-(1,1)] and [(150,-14)-(-1000,-14.1)]. And transformation should transform uniformly. For example, rectangle corners should be transformed one to one. For example coordinates (0,0) should turn to (150,-14). UPDATE 2 I need AffineTransform object, not just calculation. Because I want to