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// ***** BEGIN LICENSE BLOCK *****
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// * Version: MPL 1.1
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// *
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// * The contents of this file are subject to the Mozilla Public License Version
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// * 1.1 (the "License"); you may not use this file except in compliance with
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// * the License. You may obtain a copy of the License at
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// * http://www.mozilla.org/MPL/
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// *
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// * Software distributed under the License is distributed on an "AS IS" basis,
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// * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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// * for the specific language governing rights and limitations under the
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// * License.
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// *
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// * The Original Code is TurboPower SysTools
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// *
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// * The Initial Developer of the Original Code is
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// * TurboPower Software
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// *
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// * Portions created by the Initial Developer are Copyright (C) 1996-2002
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// * the Initial Developer. All Rights Reserved.
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// *
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// * Contributor(s):
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// *
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// * ***** END LICENSE BLOCK *****
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//---------------------------------------------------------------------------
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#include <vcl\vcl.h>
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#pragma hdrstop
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#include <stdlib.h>
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#include "ExCollU.h"
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//---------------------------------------------------------------------------
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#pragma package(smart_init)
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#pragma link "StColl"
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#pragma resource "*.dfm"
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TForm1 *Form1;
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//---------------------------------------------------------------------------
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__fastcall TForm1::TForm1(TComponent* Owner)
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: TForm(Owner)
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{
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}
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//---------------------------------------------------------------------------
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void __fastcall MyDelNodeData(void * Data)
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{
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delete (ARecord*)Data;
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}
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//---------------------------------------------------------------------------
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bool __fastcall MatchCollString(TStContainer* Container, void * Data, void * OtherData)
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{
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ARecord R1 = *(ARecord*) Data;
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ARecord R2 = *(ARecord*) OtherData;
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return
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(R1.First != R2.First) || (R1.Last != R2.Last);
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}
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//---------------------------------------------------------------------------
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bool __fastcall CollWalker(TStContainer* Container, void * Data, void * OtherData)
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//this function makes no comparison and always returns true
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//so it will visit all nodes in the collection
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{
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ARecord R1 = *(ARecord*) Data;
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Form1->LB1->Items->Add(R1.First + ' ' + R1.Last + ', ' + IntToStr(R1.Age));
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return true;
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}
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//---------------------------------------------------------------------------
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void __fastcall MyStoreData(Classes::TWriter* Writer, void * Data)
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{
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ARecord R1 = *(ARecord*) Data;
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Writer->WriteString(R1.First);
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Writer->WriteString(R1.Last);
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Writer->WriteInteger(R1.Age);
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}
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//---------------------------------------------------------------------------
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void * __fastcall MyLoadData(Classes::TReader* Reader)
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{
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ARecord* Res = new ARecord;
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Res->First = Reader->ReadString();
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Res->Last = Reader->ReadString();
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Res->Age = Reader->ReadInteger();
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return Res;
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}
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//---------------------------------------------------------------------------
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void TForm1::UpdateButtons(bool COK)
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{
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ClearBtn->Enabled = COK;
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PackBtn->Enabled = COK;
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AtBtn->Enabled = COK;
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AtInsBtn->Enabled = COK;
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AtPutBtn->Enabled = COK;
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DelBtn->Enabled = COK;
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AtDelBtn->Enabled = COK;
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InsBtn->Enabled = COK;
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EffBtn->Enabled = COK;
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SaveBtn->Enabled = COK;
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}
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//---------------------------------------------------------------------------
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void TForm1::SetBusy(bool B)
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{
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if (B)
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Screen->Cursor = crHourGlass;
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else
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Screen->Cursor = crDefault;
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}
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//---------------------------------------------------------------------------
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Boolean TForm1::CheckControls(ARecord &AR)
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{
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if ((Edit3->Text == "") || (Edit4->Text == "") || (Edit5->Text == ""))
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return false;
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AR.First = Edit3->Text;
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AR.Last = Edit4->Text;
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AR.Age = StrToInt(Edit5->Text);
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return true;
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}
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//---------------------------------------------------------------------------
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void TForm1::FillControls(ARecord AR)
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{
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Edit3->Text = AR.First;
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Edit4->Text = AR.Last;
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Edit5->Text = IntToStr(AR.Age);
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}
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//---------------------------------------------------------------------------
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void TForm1::FillListBox(void)
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{
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LB1->Clear();
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LB1->Perform(WM_SETREDRAW,0,0);
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SetBusy(true);
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MyCollection->Iterate(CollWalker, true, 0);
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LB1->Perform(WM_SETREDRAW,1,0);
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LB1->Update();
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LB1->ItemIndex = 0;
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Edit2->Text = "0";
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SetBusy(false);
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::FormCreate(TObject *Sender)
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{
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RegisterClassAlias(__classid(TStCollection), "TStCollection");
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UpdateButtons(false);
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FirstA[0] = "Fred";
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FirstA[1] = "Robert";
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FirstA[2] = "Barney";
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FirstA[3] = "Horatio";
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FirstA[4] = "Kent";
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FirstA[5] = "Arthur";
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FirstA[6] = "Lee";
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FirstA[7] = "John Q. ";
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LastA[0] = "Flintstone";
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LastA[1] = "Java";
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LastA[2] = "Rubble";
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LastA[3] = "Hornblower";
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LastA[4] = "C++Builder";
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LastA[5] = "Miller";
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LastA[6] = "Delphi";
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LastA[7] = "Public";
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::FormClose(TObject *Sender, TCloseAction &Action)
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{
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delete MyCollection;
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::CreateBtnClick(TObject *Sender)
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{
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int I;
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ARecord* AR;
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if (MyCollection)
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delete MyCollection;
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UpdateButtons(false);
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MyCollection = new TStCollection(100);
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MyCollection->DisposeData = MyDelNodeData;
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MyCollection->LoadData = MyLoadData;
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MyCollection->StoreData = MyStoreData;
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randomize;
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LB1->Clear();
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LB1->Perform(WM_SETREDRAW,0,0);
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SetBusy(true);
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for (I = 0; I < MaxElem; I++) {
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AR = new ARecord;
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AR->First = FirstA[random(8)];
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AR->Last = LastA[random(8)];
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AR->Age = random(100);
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MyCollection->Insert(AR);
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LB1->Items->Add(AR->First + " " + AR->Last + ", " + IntToStr(AR->Age));
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}
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LB1->Perform(WM_SETREDRAW,1,0);
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LB1->Update();
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MyCollection->Pack();
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Edit1->Text = IntToStr(MyCollection->Efficiency);
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UpdateButtons(true);
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SetBusy(false);
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::ClearBtnClick(TObject *Sender)
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{
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MyCollection->Clear();
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LB1->Clear();
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Edit1->Text = IntToStr(MyCollection->Efficiency);
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::PackBtnClick(TObject *Sender)
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{
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MyCollection->Pack();
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Edit1->Text = IntToStr(MyCollection->Efficiency);
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::AtBtnClick(TObject *Sender)
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{
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void * Data;
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long E;
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if (Edit2->Text == "")
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Edit2->Text = "0";
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E = StrToInt(Edit2->Text);
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if ((E > MyCollection->Count-1) || (E < 0)) {
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ShowMessage("Element value out of range (0.." + IntToStr(MyCollection->Count) + ")");
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Edit2->Text = "0";
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return;
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}
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Data = MyCollection->At(E);
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ARecord R1 = *(ARecord*) Data;
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FillControls(R1);;
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::AtInsBtnClick(TObject *Sender)
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{
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long E;
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ARecord* PAR;
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PAR = new ARecord;
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if (!CheckControls(*PAR)) {
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ShowMessage("One or more data controls invalid");
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delete PAR;
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return;
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}
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if (Edit2->Text == "")
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Edit2->Text = "0";
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E = StrToInt(Edit2->Text);
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if ((E > MyCollection->Count-1) || (E < 0)) {
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ShowMessage("Element value out of range (0.." + IntToStr(MyCollection->Count) + ")");
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Edit2->Text = "0";
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return;
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}
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MyCollection->AtInsert(E, PAR);
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FillListBox();
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::AtPutBtnClick(TObject *Sender)
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{
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long E;
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void * Data;
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ARecord AR;
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if (!CheckControls(AR)) {
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ShowMessage("One or more data controls invalid");
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return;
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}
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if (Edit2->Text == "")
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Edit2->Text = "0";
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E = StrToInt(Edit2->Text);
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if ((E > MyCollection->Count-1) || (E < 0)) {
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ShowMessage("Element value out of range (0.." + IntToStr(MyCollection->Count) + ")");
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Edit2->Text = "0";
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return;
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}
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Data = MyCollection->At(E);
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if (Data) {
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*(ARecord*) Data = AR;
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MyCollection->AtPut(E, Data);
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FillListBox();
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}
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::DelBtnClick(TObject *Sender)
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{
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ARecord AR;
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void * PN;
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if (!CheckControls(AR)) {
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ShowMessage("One or more data entry fields invalid");
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return;
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}
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PN = MyCollection->Iterate(MatchCollString, true, &AR);
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if (!PN) {
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MyCollection->Delete(PN);
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FillListBox();
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} else
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ShowMessage("Data not found");
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::AtDelBtnClick(TObject *Sender)
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{
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long E;
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if (Edit2->Text == "")
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E = 0;
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else
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E = StrToInt(Edit2->Text);
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if ((E > MyCollection->Count-1) || (E < 0)) {
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ShowMessage("Element value out of range (0.." + IntToStr(MyCollection->Count) + ")");
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Edit2->Text = "0";
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return;
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}
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MyCollection->AtDelete(E);
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FillListBox();
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::InsBtnClick(TObject *Sender)
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{
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int E;
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ARecord* AR;
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if (Edit2->Text == "")
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E = 0;
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else
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E = StrToInt(Edit2->Text);
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if ((E > MyCollection->Count-1) || (E < 0)) {
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ShowMessage("Element value out of range (0.." + IntToStr(MyCollection->Count) + ")");
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Edit2->Text = "0";
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return;
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}
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AR = new ARecord;
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if (!CheckControls(*AR)) {
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ShowMessage("One or more data entry fields invalid");
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delete AR;
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return;
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}
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MyCollection->Insert(AR);
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FillListBox();
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::EffBtnClick(TObject *Sender)
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{
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Edit1->Text = IntToStr(MyCollection->Efficiency);
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::LoadBtnClick(TObject *Sender)
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{
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if (OD1->Execute()) {
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if (!MyCollection) {
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UpdateButtons(false);
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MyCollection = new TStCollection(100);
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MyCollection->DisposeData = MyDelNodeData;
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MyCollection->LoadData = MyLoadData;
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MyCollection->StoreData = MyStoreData;
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}
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LB1->Clear();
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MyCollection->Clear();
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SetBusy(true);
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MyCollection->LoadFromFile(OD1->FileName);
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MyCollection->Pack();
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SetBusy(false);
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FillListBox();
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UpdateButtons(true);
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}
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::SaveBtnClick(TObject *Sender)
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{
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if (SD1->Execute()) {
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SetBusy(true);
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MyCollection->StoreToFile(SD1->FileName);
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SetBusy(false);
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}
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::LB1Click(TObject *Sender)
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{
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Edit2->Text = IntToStr(LB1->ItemIndex);
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::LB1DblClick(TObject *Sender)
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{
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MyCollection->AtDelete(LB1->ItemIndex);
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FillListBox();
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Edit2->Text = '0';
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}
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//--------------------------------------------------------------------------- |