PHP+GTK2 初体验，简单计算器客户端

　　最近工作中要用php重做一个之前用.net实现的工具客户端。准备用php+gtk做，于是查阅资料先做个小的demo熟悉下。

　　gtk这个东西资料太少了，这里先附上几个链接：

　　1.gtk的文档（吐槽下很简陋）：http://gtk.php.net/manual/en/html/gtk/gtk.gtkwindow.html

　　2.gtk布局 ：http://www.laruence.com/2009/05/26/871.html

　　3.鸟哥的demo：http://www.laruence.com/2009/05/26/871.html

　　好了，附上自己的代码

　　

<?php
 
class Calculator extends GtkWindow {
     private $chalkboard;       //结果显示占位
     private $param = false;    //输入参数
     private $operater;         //运算规则
     private $tmpres = false;   //临时结果
 
     function __construct() {
          parent::__construct();
          $this->draw();
          $this->show();
     }

     //UI布局
     public function draw() {
          $this->set_default_size(300, 400);
          $this->set_title("this is my calculator"); 
 
          //加元素
          $mesg   = new GtkLabel('');
          $this->chalkboard = new GtkLabel();
 
          $btn_1       = new GtkButton('1');
          $btn_2       = new GtkButton('2');
          $btn_3       = new GtkButton('3');
          $btn_4       = new GtkButton('4');
          $btn_5       = new GtkButton('5');
          $btn_6       = new GtkButton('6');
          $btn_7       = new GtkButton('7');
          $btn_8       = new GtkButton('8');
          $btn_9       = new GtkButton('9');
          $btn_0       = new GtkButton('0');
          $btn_minus   = new GtkButton('\-');
          $btnPlus     = new GtkButton('+');
          $btnReduce   = new GtkButton('-');
          $btnRide     = new GtkButton('*');
          $btnDivide   = new GtkButton('/');
          $btnGet      = new GtkButton('=');
          $btnDle   = new GtkButton('<-');
          $btnAllclear   = new GtkButton('Clean');
          $btnNowclear   = new GtkButton('Clear');
          $btnPoint   = new GtkButton('.');


          //table布局UI
          $tbl = new GtkTable(4, 5);
          $tbl->attach($btnAllclear, 0, 1, 0, 1);
          $tbl->attach($btnNowclear, 1, 2, 0, 1);
          $tbl->attach($btnDle, 2, 3, 0, 1);
          $tbl->attach($btnDivide, 3, 4, 0, 1);
          $tbl->attach($btn_7, 0, 1, 1, 2);
          $tbl->attach($btn_8, 1, 2, 1, 2);
          $tbl->attach($btn_9, 2, 3, 1, 2);
          $tbl->attach($btnRide, 3, 4, 1, 2);
          $tbl->attach($btn_4, 0, 1, 2, 3);
          $tbl->attach($btn_5, 1, 2, 2, 3);
          $tbl->attach($btn_6, 2, 3, 2, 3);
          $tbl->attach($btnReduce, 3, 4, 2, 3);
          $tbl->attach($btn_1, 0, 1, 3, 4);
          $tbl->attach($btn_2, 1, 2, 3, 4);
          $tbl->attach($btn_3, 2, 3, 3, 4);
          $tbl->attach($btnPlus, 3, 4, 3, 4);
          $tbl->attach($btn_minus, 0, 1, 4, 5);
          $tbl->attach($btn_0, 1, 2, 4, 5);
          $tbl->attach($btnPoint, 2, 3, 4, 5);
          $tbl->attach($btnGet, 3, 4, 4, 5);


          //放入组件
          $vBox = new GtkVBox(false, true);
          $vBox->pack_start($mesg);
          $vBox->pack_start($this->chalkboard);
          $vBox->pack_start($tbl);


          //给按键绑定触发事件
          $btnGet->connect("clicked", array($this, "calculate"));
          $btnPlus->connect("clicked", array($this, "plus"));
          $btnReduce->connect("clicked", array($this, "reduce"));
          $btnRide->connect("clicked", array($this, "ride"));
          $btnDivide->connect("clicked", array($this, "divide"));
          $btn_1->connect("clicked", array($this, "change1"));
          $btn_2->connect("clicked", array($this, "change2"));
          $btn_3->connect("clicked", array($this, "change3"));
          $btn_4->connect("clicked", array($this, "change4"));
          $btn_5->connect("clicked", array($this, "change5"));
          $btn_6->connect("clicked", array($this, "change6"));
          $btn_7->connect("clicked", array($this, "change7"));
          $btn_8->connect("clicked", array($this, "change8"));
          $btn_9->connect("clicked", array($this, "change9"));
          $btn_0->connect("clicked", array($this, "change0"));
          $btn_minus->connect("clicked", array($this, "changeMinus"));
          $btnPoint->connect("clicked", array($this, "changePoint"));
          $btnDle->connect("clicked", array($this, "paramDle"));
          $btnAllclear->connect("clicked", array($this, "allClear"));
          $btnNowclear->connect("clicked", array($this, "nowClear"));
 
          $this->add($vBox);
     }
     //组件显示
     public function show() {
          $this->show_all();
     }


     //加减乘除
     public function plus(){
          $this->operate('1');
     }
     public function reduce(){
          $this->operate('2');
     }
     public function ride(){
          $this->operate('3');
     }
     public function divide(){
          $this->operate('4');
     }
     public function operate($operate) {
          $this->operater = $operate;
          if ($this->param) {
               $this->tmpres = $this->param;
               $this->param = false;
          }
     }


     //数字录入
     public function change0(){
          $this->changeParam('0');
     }
     public function change1(){
          $this->changeParam('1');
     }
     public function change2(){
          $this->changeParam('2');
     }
     public function change3(){
          $this->changeParam('3');
     }
     public function change4(){
          $this->changeParam('4');
     }
     public function change5(){
          $this->changeParam('5');
     }
     public function change6(){
          $this->changeParam('6');
     }
     public function change7(){
          $this->changeParam('7');
     }
     public function change8(){
          $this->changeParam('8');
     }
     public function change9(){
          $this->changeParam('9');
     }
     public function changePoint(){
          $this->changeParam('.');
     }
     public function changeMinus(){
          $this->changeParam('-');
     }
     public function changeParam($param){
          if ($this->param === false) {
               $this->param = '';
          }
          $this->param.= $param;
          $this->param = $this->fotmat($this->param);
          $this->notice($this->param);
     }



     public function paramDle(){
          $this->param = substr($this->param, 0, strlen($this->param)-1);
          $this->notice($this->param);
     }


     //清存
     public function allClear(){
          $this->param = false;
          $this->operater = false;
          $this->tmpres = false;
          $this->notice('0');
     }

     //清屏
     public function nowClear(){
          $this->param = false;
          $this->notice('0');
     }

     //显示结果
     private function notice($mesg) {
          $this->chalkboard->set_text($mesg);
     }

     //计算
     public function calculate() {
          $res = $this->getRes($this->tmpres, $this->param, $this->operater);
          $this->operater = false;
          $this->param = false;
          $this->notice($res);
          return;
     }

     //运算函数
     public function getRes($tmpres, $param, $operater) {
          if ($tmpres!== false || !$operater) {
               if ($param !== false) {
                    $this->tmpres = $param;
               }
               return $this->tmpres;
          }
          if ((!$tmpres || $tmpres === false) && $param!== false && $operater) {
               $this->param = false;
               if ($operater === '1') {
                    $this->tmpres = $tmpres + $param;
                    return $this->tmpres;
               }
               if ($operater === '2') {
                    $this->tmpres = $tmpres - $param;
                    return $this->tmpres;
               }
               if ($operater === '3') {
                    $this->tmpres = $tmpres * $param;
                    return $this->tmpres;
               }
               if ($operater === '4') {
                    if (abs($param) > 0) {
                         $this->tmpres = $tmpres / $param;
                         return $this->tmpres;
                    } else {
                        $this->param = false;
                         $this->operater = false;
                         $this->tmpres = false;
                         return "The divisor cannot be 0"; 
                    }
               }
          }
     }



     //数字处理函数
     public function fotmat($shownum){
          $flag = false;
          $flag2 = false;
          $tmpRight = '';
          if (strstr($shownum, '-')) {
               $shownum = str_replace('-', '', $shownum);
               $flag2 = true;
          }
          if (strstr($shownum, '.')) {
               $tmpArr = explode('.', $shownum);
               $shownum = $tmpArr[0];
               $tmpRight = $tmpArr[1];
               $flag = true;
          }
          if (preg_match_all('/([0]{1,})([1-9]*)/', $shownum, $out)) {
               if ($out[2][0] === '') {
                    $shownum = '0';
               } else {
                    $shownum = $out[2][0]; 
               }
          }
          if ($flag) {
               $shownum = $shownum.'.'.$tmpRight;
          }
          if ($flag2) {
               $shownum = '-'.$shownum;
          }
          return $shownum;
     }
     function __destruct() {
          Gtk::main_quit();
     }
}
 
new Calculator();
Gtk::main();

　　弄好之后起来的效果：

　　

　　先这样，以后有时间重写