這是“使用 C＃ 開(kāi)發(fā)智能手機(jī)軟件：推箱子” 系列文章的第二十三篇。在這篇文章中，介紹 Window/MainForm.Common.cs 源程序文件。這個(gè)源程序文件是 MainForm 類(lèi)的一部分，該類(lèi)繼承自 System.Windows.Forms.Form 類(lèi)，表示推箱子的主窗體。而本篇文章講述的是 MainForm 類(lèi)的一些公用方法。下面就是 MainForm.Common.cs 的源程序代碼：

??1?using?System;
??2?using?System.Drawing;
??3?using?System.Threading;
??4?using?System.Collections.Generic;
??5?using?System.Windows.Forms;
??6?using?Skyiv.Ben.PushBox.Common;
??7?
??8?namespace?Skyiv.Ben.PushBox.Window
??9?{
?10???partial?class?MainForm
?11???{
?12?????///?<summary>
?13?????///?裝入當(dāng)前關(guān)數(shù)據(jù)
?14?????///?</summary>
?15?????///?<param?name="isReSizeClient">是否根據(jù)當(dāng)前關(guān)尺寸改變主窗體客戶(hù)區(qū)尺寸</param>
?16?????void?LoadLevel(bool?isReSizeClient)
?17?????{
?18???????env.LoadLevel();
?19???????if?(isReSizeClient?&&?Environment.OSVersion.Platform?!=?PlatformID.WinCE)
?20?????????ClientSize?=?env.GetClientSize(sbrMain.Visible???sbrMain.Height?:?0);
?21???????ClientSizeChanged();
?22???????UpdateStatus();
?23?????}
?24?
?25?????///?<summary>
?26?????///?主窗體客戶(hù)區(qū)尺寸改變時(shí)要采取的動(dòng)作
?27?????///?</summary>
?28?????void?ClientSizeChanged()
?29?????{
?30???????env.ClientSize?=?new?Size(ClientSize.Width,?ClientSize.Height?+
?31?????????Pub.OverY?-?(sbrMain.Visible???sbrMain.Height?:?0));
?32???????env.SetBoxInfo();
?33???????Invalidate();
?34?????}
?35?
?36?????///?<summary>
?37?????///?恢復(fù)上次退出時(shí)保存的走法
?38?????///?</summary>
?39?????///?<param?name="steps">走法</param>
?40?????void?Restore(string?steps)
?41?????{
?42???????Rectangle?invalid;
?43???????foreach?(char?c?in?steps)
?44???????{
?45?????????Step?step?=?c;
?46?????????if?(!env.StepIt(step.Direct,?step.IsStop,?out?invalid))?break;
?47???????}
?48???????Invalidate();
?49???????UpdateStatus();
?50?????}
?51?
?52?????///?<summary>
?53?????///?工人往指定方向前進(jìn)一步(可能推著箱子)
?54?????///?</summary>
?55?????///?<param?name="dir">前進(jìn)的方向</param>
?56?????///?<param?name="isStop">“撤銷(xiāo)”時(shí)是否停留</param>
?57?????void?StepIt(Direction?dir,?bool?isStop)
?58?????{
?59???????Rectangle?invalid;
?60???????if?(!env.StepIt(dir,?isStop,?out?invalid))?return;
?61???????Invalidate(invalid);
?62???????UpdateStatus();
?63?????}
?64?
?65?????///?<summary>
?66?????///?工人后退一步(可能連帶箱子一起后退)
?67?????///?</summary>
?68?????///?<returns>是否完成“撤消”</returns>
?69?????bool?Back()
?70?????{
?71???????Rectangle?invalid;
?72???????bool?isStop?=?env.Back(out?invalid);
?73???????Invalidate(invalid);
?74???????UpdateStatus();
?75???????return?isStop;
?76?????}
?77?
?78?????///?<summary>
?79?????///?嘗試將工人移動(dòng)到鼠標(biāo)點(diǎn)擊的位置
?80?????///?</summary>
?81?????///?<returns>是否成功</returns>
?82?????bool?TryMove()
?83?????{
?84???????Queue<Direction>?moveQueue?=?env.GetMoveInfo();
?85???????if?(moveQueue?==?null)?return?false;
?86???????if?(moveQueue.Count?<=?0)?return?false;
?87???????int?count?=?moveQueue.Count;
?88???????while?(moveQueue.Count?>?0)
?89???????{
?90?????????bool?isStop?=?(count?==?moveQueue.Count);
?91?????????if?(!isStop?&&?env.StepDelay?>?0)?Thread.Sleep(env.StepDelay);
?92?????????StepIt(moveQueue.Dequeue(),?isStop);
?93???????}
?94???????return?true;
?95?????}
?96?
?97?????///?<summary>
?98?????///?嘗試將箱子推動(dòng)到鼠標(biāo)點(diǎn)擊的位置
?99?????///?</summary>
100?????///?<returns>是否成功</returns>
101?????bool?TryPush()
102?????{
103???????Direction?dir;
104???????int?steps?=?env.GetPushInfo(out?dir);
105???????if?(steps?<=?0)?return?false;
106???????for?(int?i?=?0;?i?<?steps;?i++)
107???????{
108?????????bool?isStop?=?(i?==?0);
109?????????if?(!isStop?&&?env.StepDelay?>?0)?Thread.Sleep(env.StepDelay);
110?????????StepIt(dir,?isStop);
111???????}
112???????return?true;
113?????}
114?
115?????///?<summary>
116?????///?更新?tīng)顟B(tài)欄信息和菜單項(xiàng)
117?????///?</summary>
118?????void?UpdateStatus()
119?????{
120???????sbrMain.Text?=?env.StatusMessage;
121???????miExit.Enabled?=?!env.IsReplay?&&?!env.IsDesign;
122???????miSystem.Enabled?=?!env.IsReplay;
123???????miOption.Enabled?=?!env.HasError?&&?!env.IsReplay;
124???????miSelectLevel.Enabled?=?!env.IsDesign?&&?!env.HasError?&&?!env.IsReplay?&&?(!env.CanUndo?||?env.IsFinish);
125???????miSelectGroup.Enabled?=?!env.IsDesign?&&?miSelectLevel.Enabled?&&?env.Groups.Length?>?1;
126???????miLastLevel.Enabled?=?miNextLevel.Enabled?=?miSelectLevel.Enabled?&&?env.Level?<?env.MaxLevel?-?1;
127???????miFirstLevel.Enabled?=?miPrevLevel.Enabled?=?miSelectLevel.Enabled?&&?env.Level?>?0;
128???????miLastGroup.Enabled?=?miNextGroup.Enabled?=?miSelectGroup.Enabled?&&?env.Group?<?env.Groups.Length?-?1;
129???????miFirstGroup.Enabled?=?miPrevGroup.Enabled?=?miSelectGroup.Enabled?&&?env.Group?>?0;
130???????miConfig.Enabled?=?miTran.Enabled?=?!env.IsDesign?&&?!env.IsReplay?&&?(!env.CanUndo?||?env.IsFinish);
131???????miDesign.Enabled?=?miSelectLevel.Enabled?&&?!env.CanUndo;
132???????miRestartOrStopOrSave.Enabled?=?!env.HasError?&&?(env.IsDesign???(!env.IsReplay?&&?env.HasWorker)?:?(env.IsReplay?||?env.CanUndo));
133???????miUndoOrCancel.Enabled?=?miBackOrManOrBox.Enabled?=?!env.HasError?&&?!env.IsReplay?&&?(env.IsDesign?||?env.CanUndo);
134???????miPrevLevel2OrSlot.Enabled?=?!env.HasError?&&?!env.IsReplay?&&?(env.IsDesign?||?(miSelectLevel.Enabled?&&?env.Level?>?0));
135???????miNextLevel2OrWall.Enabled?=?!env.HasError?&&?!env.IsReplay?&&?(env.IsDesign?||?(miSelectLevel.Enabled?&&?env.Level?<?env.MaxLevel?-?1));
136???????miRecordOrBrick.Enabled?=?!env.HasError?&&?!env.IsReplay?&&?(env.IsDesign?||?env.IsFinish);
137???????miReplayOrLand.Enabled?=?!env.HasError?&&?!env.IsReplay?&&?(env.IsDesign?||?env.CanReplay);
138???????miRestartOrStopOrSave.Text?=?!env.IsDesign???(!env.IsReplay???"〓"?:?"■")?:?"保存";
139???????miUndoOrCancel.Text?=?!env.IsDesign???"↖"?:?"放棄";
140???????miBackOrManOrBox.Text?=?!env.IsDesign???"←"?:?env.HasWorker???"箱"?:?"人";
141???????miPrevLevel2OrSlot.Text?=?!env.IsDesign???"▲"?:?"槽";
142???????miNextLevel2OrWall.Text?=?!env.IsDesign???"▼"?:?"墻";
143???????miRecordOrBrick.Text?=?!env.IsDesign???"●"?:?"磚";
144???????miReplayOrLand.Text?=?!env.IsDesign???"回放"?:?"地";
145???????Update();
146?????}
147???}
148?}
149?

該類(lèi)的 UpdateStatus 方法用于更新?tīng)顟B(tài)欄信息和菜單項(xiàng)，我們來(lái)看看 MainForm.Designer.cs 源程序文件(該文件是由 Visual Studio 2005 IDE 自動(dòng)生成的)中和“狀態(tài)欄”相關(guān)的部分：

namespace?Skyiv.Ben.PushBox.Window
{
??partial?class?MainForm
??{
??????//?注意：省略了很多代碼，僅保留和?sbrMain?相關(guān)的部分。
????private?void?InitializeComponent()
????{
??????this.sbrMain?=?new?System.Windows.Forms.StatusBar();
??????this.sbrMain.Location?=?new?System.Drawing.Point(0,?246);
??????this.sbrMain.Name?=?"sbrMain";
??????this.sbrMain.Size?=?new?System.Drawing.Size(240,?22);
??????this.Controls.Add(this.sbrMain);
????}
????private?System.Windows.Forms.StatusBar?sbrMain;
??}
}

一般來(lái)說(shuō)，狀態(tài)欄要分為多個(gè)狀態(tài)欄面板(StatusBarPanel 類(lèi))，如下圖(這是推箱子的 1.15 版本，只能運(yùn)行在計(jì)算機(jī)上，不能運(yùn)行在智能手機(jī)上)所示：

但是 Microsoft .NET Compact Framework 不支持 StatusBarPanel 類(lèi)，所以狀態(tài)欄信息只好直接顯示在狀態(tài)欄上。

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