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:
1. My Viewer and Editor , . : 1) ; 2) , ; 3) (Save as) .
2. , .
: Windows . , .
ճ :
, 1-
1. : Memo1, Button1, BitBtn1 ( Additional), OpenDialog1 ( Dialogs). Kind BitBtn1 bkClose. .
OpenDialog1 - , . ( OpenDialog1->Execute) Windows . Memo1 , . , Memo1, Lines.
2. Memo1 : ReadOnly True ( Memo1 ), ScrollBars ssBoth ( Memo1 : ). Lines Memo1. Caption Button1 Form1 , :
3. OnClick Button1. Load File , . FileName OpenDialog1. Button1Click :
void __fastcall TForm1::Button1Click(TObject *Sender)
{
if (OpenDialog1->Execute() && FileExists(OpenDialog1->FileName))
{
s=OpenDialog1->FileName;
Form1->Caption=s;
Memo1->Lines->LoadFromFile(s);
}
}
FileExists , OpenDialog1->FileName .
private TForm1 s:
class TForm1: public TForm
{
__published: // IDE-managed Components
TMemo *Memo1;
TButton *Button1;
TBitBtn *BitBtn1;
TOpenDialog *OpenDialog1;
void __fastcall Button1Click(TObject *Sender);
private:
// User declarations
AnsiString s;
public: // User declarations
__fastcall TForm1(TComponent* Owner);
};
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Form1->Caption=s;
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LoadFromFile Memo1.Lines s Memo1.Lines ( ). Memo1 .
4. . .
5. ϳ . , Filter OpenDialog1. ³ Filter Editor Filter ( ) :
.
, (, D:\students) InitialDir OpenDialog1.
6. . .
7. . OnResize :
void __fastcall TForm1::FormResize(TObject *Sender)
{
Memo1->Height=Form1->ClientHeight;
Memo1->Width=Form1->ClientWidth-20-Button1->Width;
Button1->Left=Form1->ClientWidth-10-Button1->Width;
Button1->Top=Form1->ClientHeight-4*Button1->Height;
BitBtn1->Left=Form1->ClientWidth-10-Button1->Width;
BitBtn1->Top=Form1->ClientHeight-2*Button1->Height;
}
8. Form1->ClientHeight Form1->ClientWidth 볺 ( ). Height Width , Left Top 볺 . , , Memo1 25 ( Height), Memo1 10 , .
TForm1->FormResize. TForm1->FormResize , Memo1 볺 , , 10 . , , .
9. Memo1 .
1- , 2-
1. File/Save as File/Save Project as Unit1.cpp Project1.bpr - . , .
2. , Memo1 ReadOnly Memo1 False. SaveDialog ( Dialogs) Button2. Caption Button2 Save File.
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3. TForm1->.FormResize , Memo1 :
void __fastcall TForm1::FormResize(TObject *Sender)
{
Memo1->Height=Form1->ClientHeight;
Memo1->Width=Form1->ClientWidth-20-Button1->Width;
Button1->Left=Form1->ClientWidth-10-Button1->Width;
Button1->Top=Form1->ClientHeight-6*Button1->Height;
Button2->Left=Form1->ClientWidth-10-Button1->Width;
Button2->Top=Form1->ClientHeight-4*Button1->Height;
BitBtn1->Left=Form1->ClientWidth-10-Button1->Width;
BitBtn1->Top=Form1->ClientHeight-2*Button1->Height;
}
4. , FormResize .
5. , Memo1 , private TForm FileIsOpen :
private:
// User declarations
AnsiString s;
Boolean FileIsOpen;
6. Unit1.cpp ProgramName, :
const char *ProgramName="My Viewer and Editor";
7. Form1 Form1Create 䳿 OnCreate ( ):
void __fastcall TForm1::FormCreate(TObject *Sender)
{
FileIsOpen=False; //
Caption=ProgramName;
}
Caption=ProgramName;
.
8. 䳿 OnClick Button1 Load File , , :
void __fastcall TForm1::Button1Click(TObject *Sender)
{
if (FileIsOpen)
if (Application->MessageBox("×è çàïèñàòè çì³íè ó ôàéë?",
"Çðîá³òü ï³äòâåðäæåííÿ",MB_YESNO)==IDYES)
Memo1->Lines->SaveToFile(s);
if (OpenDialog1->Execute() && FileExists(OpenDialog1->FileName))
{ FileIsOpen=True;
s=OpenDialog1->FileName;
Form1->Caption=s;
Memo1->Lines->LoadFromFile(s);}
else
FileIsOpen=False;
}
, , Application.MessageBox, :
Application->MessageBox , , . , MB_YESNO , . IDYES , . MessageBox (, F1).
9. OnClick Button2 Save File , , , , , , , SaveDialog1 ( , New).
void __fastcall TForm1::Button2Click(TObject *Sender)
{
if (FileExists(s))
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{ if (Application->MessageBox("×è çàïèñàòè çì³íè ó ôàéë?",
"Çðîá³òü ï³äòâåðäæåííÿ",MB_YESNO)==IDYES)
Memo1->Lines->SaveToFile(s);
}
else
if (SaveDialog1->Execute())
{ s=SaveDialog1->FileName;
Form1->Caption=s;
Memo1->Lines->SaveToFile(s);
}
}
SaveToFile Memo1->Lines s Memo1.
10. Load File Save File. : 1) Memo1 ; 2) , Memo1 ( ) .
1- , 3-
1. ³ . File/Save as File/Save Project as Unit1.cpp Project1.bpr 3- .
2. Button3 Button4 Save as New . : New, Load File, Save File, Save as, Close.
3. TForm1.FormResize:
void __fastcall TForm1::FormResize(TObject *Sender)
{
Memo1->Height=Form1->ClientHeight;
Memo1->Width=Form1->ClientWidth-20-Button1->Width;
Button4->Left=Form1->ClientWidth-10-Button1->Width;
Button4->Top=Form1->ClientHeight-10*Button1->Height;
Button1->Left=Form1->ClientWidth-10-Button1->Width;
Button1->Top=Form1->ClientHeight-8*Button1->Height;
Button2->Left=Form1->ClientWidth-10-Button1->Width;
Button2->Top=Form1->ClientHeight-6*Button1->Height;
Button3->Left=Form1->ClientWidth-10-Button1->Width;
Button3->Top=Form1->ClientHeight-4*Button1->Height;
BitBtn1->Left=Form1->ClientWidth-10-Button1->Width;
BitBtn1->Top=Form1->ClientHeight-2*Button1->Height;
}
4. , OnResize .
5. OnClick Button4 ( New):
void __fastcall TForm1::Button4Click(TObject *Sender)
{
if (FileIsOpen)
{ if (Application->MessageBox("×è çàïèñàòè çì³íè ó ôàéë?",
"Çðîá³òü ï³äòâåðäæåííÿ",MB_YESNO)==IDYES)
Memo1->Lines->SaveToFile(s);
}
Memo1->Lines->Clear();
FileIsOpen=False;
s="";
Caption=ProgramName;
}
, Memo1 New . , , , , .
Clear Memo1->Lines , , Memo1.
Caption=ProgramName;
, , .
6. OnClick Button3 ( Save as):
void __fastcall TForm1::Button3Click(TObject *Sender)
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{
if (SaveDialog1->Execute())
{ s=SaveDialog1->FileName;
Form1->Caption=s;
Memo1->Lines->SaveToFile(s);
}
}
Memo1 .
7. . exe- Widows.
:
1. SaveDialog1, 1, ( Filter SaveDialog1). , , OpenDialog1.
2. ϳ 1- , ( ProgramName), , . ϳ ( New) , New file.
2-
1. : Memo1 , 볺 ( Align alClient, ScrollBars ssBoth), OpenDialog1 SaveDialog1, MainMenu1.
, .
2. . Items MainMenu1. . , () (), ᒺ Caption . .
Unit1.h :
class TForm1: public TForm
{
__published: // IDE-managed Components
TMemo *Memo1;
TOpenDialog *OpenDialog1;
TSaveDialog *SaveDialog1;
TMainMenu *MainMenu1;
TMenuItem *File1;
TMenuItem *About1;
TMenuItem *New1;
TMenuItem *LoadFile1;
TMenuItem *SaveFile1;
TMenuItem *Saveas1;
TMenuItem *Quit1;
private: // User declarations
public: // User declarations
__fastcall TForm1(TComponent* Owner);
};
TForm1 ᒺ TMenuItem, . , , OnClick. . .
3. About :
void __fastcall TForm1::About1Click(TObject *Sender)
{
ShowMessage("Copyright by ,"
"student of TDTU, Ukraine, 2006");
}
ShowMessage Ok.
4. ϳ Quit :
void __fastcall TForm1::Quit1Click(TObject *Sender)
{
Close();
}
5. .
