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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 "ExDictU.h"
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//---------------------------------------------------------------------------
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#pragma package(smart_init)
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#pragma link "StDict"
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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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bool __fastcall DDWalker(TStContainer* Container, TStNode* Node, void * OtherData)
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{
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TStDictNode* N = (TStDictNode*) Node;
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ShortString *S = (ShortString*) N->Data;
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Form1->LB1->Items->Add(((TStDictNode*)Node)->Name + " = " + *S);
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return true;
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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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ShortString * S;
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S = new ShortString;
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*S = Reader->ReadString();
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return (void *) S;
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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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ShortString *S = (ShortString*) Data;
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Writer->WriteString(*S);
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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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MyDD->Iterate(DDWalker, 0);
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LB1->Perform(WM_SETREDRAW, 1, 0);
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LB1->Update();
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}
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//---------------------------------------------------------------------------
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void TForm1::UpdateButtons(bool DOK)
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{
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ClearBtn->Enabled = DOK;
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AddBtn->Enabled = DOK;
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UpdateBtn->Enabled = DOK;
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ExistsBtn->Enabled = DOK;
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DelBtn->Enabled = DOK;
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SaveBtn->Enabled = DOK;
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LB1->Enabled = DOK;
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}
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//---------------------------------------------------------------------------
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String TForm1::RandomData(void)
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{
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int Len = random(100)+1;
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String S = "";
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for (int I = 1; I <= Len; I++)
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S = S + (char)(random(26) + 'A');
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return S;
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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(TStDictionary), "TStDictionary");
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RegisterClassAlias(__classid(TStDictNode), "TStDictNode");
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UpdateButtons(false);
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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 MyDD;
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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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String S1, S2;
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int P, Len;
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S1 = LB1->Items->Strings[LB1->ItemIndex];
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S2 = S1;
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Len = S1.Length();
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P = S1.Pos("=");
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S1.Delete(P-1, Len-P+2);
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Edit1->Text = S1;
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S2.Delete(1, P+1);
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Edit2->Text = S2;
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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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void * P;
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if (MyDD->Exists(Edit1->Text, P)) {
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MyDD->Delete(Edit1->Text);
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FillListBox();
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}
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LB1->ItemIndex = 0;
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LB1Click(LB1);
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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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ShortString *S;
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randomize;
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if (MyDD)
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delete MyDD;
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UpdateButtons(false);
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MyDD = new TStDictionary(127);
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MyDD->LoadData = MyLoadData;
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MyDD->StoreData = MyStoreData;
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MyDD->Hash = AnsiELFHashText;
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for (int I = 1; I <= 100; I++) {
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S = new ShortString;
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*S = RandomData();
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MyDD->Add("Item" + IntToStr(I), S);
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}
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FillListBox();
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UpdateButtons(true);
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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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LB1->Clear();
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MyDD->Clear();
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Edit1->Clear();
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Edit2->Clear();
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::AddBtnClick(TObject *Sender)
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{
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ShortString Name;
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ShortString *PS;
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if ((Edit1->Text == "") || (Edit2->Text == "")) {
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ShowMessage("Name and/or data missing");
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return;
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}
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PS = new ShortString;
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*PS = Edit2->Text;
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Name = Edit1->Text;
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MyDD->Add(Name, PS);
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FillListBox();
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::UpdateBtnClick(TObject *Sender)
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{
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void * P;
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if ((Edit1->Text == "") || (Edit2->Text == "")) {
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ShowMessage("Name and/or data missing");
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return;
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}
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if (MyDD->Exists(Edit1->Text, P)) {
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*((ShortString*)P) = Edit2->Text;
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MyDD->Update(Edit1->Text, P);
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} else {
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ShowMessage(Edit1->Text + " not found");
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return;
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}
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FillListBox();
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}
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//---------------------------------------------------------------------------
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void __fastcall TForm1::ExistsBtnClick(TObject *Sender)
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{
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void *S;
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if (Edit1->Text == "") {
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ShowMessage("No name entry");
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return;
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}
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if (MyDD->Exists(Edit1->Text, S)) {
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Edit2->Clear();
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Edit2->Text = *((ShortString*)S);
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Edit2->Update();
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} else
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ShowMessage("No matching entry found");
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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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void * P;
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if (Edit1->Text == "") {
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ShowMessage("No name entered");
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return;
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}
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if (MyDD->Exists(Edit1->Text, P)) {
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MyDD->Delete(Edit1->Text);
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FillListBox();
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} else
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ShowMessage("Entry not found");
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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 (!MyDD) {
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UpdateButtons(false);
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MyDD = new TStDictionary(127);
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MyDD->LoadData = MyLoadData;
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MyDD->StoreData = MyStoreData;
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}
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MyDD->Clear();
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MyDD->LoadFromFile(OD1->FileName);
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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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MyDD->StoreToFile(SD1->FileName);
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}
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//--------------------------------------------------------------------------- |