2022年JAVA创建自定义的渐变颜色按钮 .pdf

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1、小弟接触 JAVA 不久，最近在写一个JAVA 的 GUI 程序，总感觉按钮太难看，于是自己研究了下做了个好看一点的按钮下面是按钮的外观，左边是鼠标没指到按钮上的样子，右边是鼠标指向按钮时的样子：下面是部分代码，如果觉得小弟写的不好，请指教。package pakageeee;import java.awt.AlphaComposite;import java.awt.Color;/import java.awt.Font;import java.awt.Graphics;import java.awt.Graphics2D;import java.awt.event.MouseEvent;p

2、ublicclass MyButton extends MenuToolbarButton /*/privatestaticfinallongserialVersionUID=-7885203960578862455L;/边框privateintframeType=0;publicstaticintFRAME_RIGHT =1;publicstaticintFRAME_AROUND=4;publicstaticintFRAME_ZUO=5;privateintmbStatus=0;/鼠标事件状态 0:鼠标弹起,1:鼠标按下privatebooleanclicked=false;/按下priva

3、tefloatalpha=1f;/不透明/按钮构造函数public MyButton(String name)setName(name);setOpaque(false);publicvoid mouseEntered(MouseEvent e)名师资料总结-精品资料欢迎下载-名师精心整理-第 1 页，共 4 页 -if(clicked)return;new Thread()publicvoid run()float a=0f;while(a=1f)alpha=a;MyButton.this.repaint();try Thread.sleep(50);catch(InterruptedExc

4、eption e)a+=0.1;.start();publicvoid mouseExited(MouseEvent e)/this.updateUI();publicint getFrameType()returnframeType;publicvoid setFrameType(int frameType)this.frameType=frameType;publicvoid paintComponent(Graphics g)Graphics2D g2=(Graphics2D)g;AlphaComposite composite=AlphaComposite.getInstance(Al

5、phaComposite.SRC_OVER,alpha);g2.setComposite(composite);/绘制边框if(this.isMouseEntered)Util.drawButtonBackground(g2,this,new Color(253,236,219),new Color(253,223,187),new Color(255,206,105),new Color(255,255,222);/按钮被按下的效果名师资料总结-精品资料欢迎下载-名师精心整理-第 2 页，共 4 页 -if(clicked)Util.drawButtonBackground(g2,this,

6、newColor(255,199,99),new Color(253,236,219),new Color(253,236,219),new Color(255,199,99);composite=AlphaComposite.getInstance(AlphaComposite.SRC_OVER,1f);g2.setComposite(composite);if(frameType=FRAME_AROUND)g.setColor(Config.COLOR_TOOLBAR_FRAME);g.drawRoundRect(1,1,getWidth()-4,getHeight()-2,3,3);el

7、seif(frameType=FRAME_RIGHT)g.setColor(Config.COLOR_TOOLBAR_FRAME);g.drawLine(getWidth()-1,1,getWidth()-1,getHeight()-2);/消除锯齿Util.setFractionalmetricsOn(g2);/文字风格g.setColor(Config.COLOR_UI_TEXT);g.setFont(Config.FONT_UI_TEXT);if(frameType=FRAME_ZUO)g.setColor(Color.BLACK);/g.setFont(new Font(微软细黑,Fo

8、nt.BOLD,14);/绘制图标if(getImage()!=null&!(frameType=FRAME_ZUO)g.drawImage(getImage(),(getWidth()-getImage().getWidth(this)/2,5+mbStatus,this);g.drawString(getName(),(getWidth()-getName().length()*Config.FONT_UI_TEXT.getSize()/2,getImage().getHeight(this)+30+mbStatus);elseif(frameType=FRAME_ZUO)g.drawIm

9、age(getImage(),5,getHeight()/2-getImage().getHeight(this)/2+mbStatus,this);g.drawString(getName(),37,名师资料总结-精品资料欢迎下载-名师精心整理-第 3 页，共 4 页 -getHeight()/2+Config.FONT_UI_TEXT.getSize()/2+mbStatus-2);else g.drawString(getName(),(getWidth()-getName().length()*Config.FONT_UI_TEXT.getSize()/2,getHeight()/2+5+mbStatus);/按钮的按下publicvoid pushButton(boolean x)clicked=x;/鼠标事件publicvoid mousePressed(MouseEvent e)mbStatus=2;publicvoid mouseReleased(MouseEvent e)mbStatus=0;名师资料总结-精品资料欢迎下载-名师精心整理-第 4 页，共 4 页 -