Add filecopy example
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filecopy/filecopy.ico
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BIN
filecopy/filecopy.ico
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After Width: | Height: | Size: 134 KiB |
76
filecopy/filecopy.lpi
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76
filecopy/filecopy.lpi
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<?xml version="1.0" encoding="UTF-8"?>
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<CONFIG>
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<ProjectOptions>
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<Version Value="11"/>
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<General>
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<SessionStorage Value="InProjectDir"/>
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<MainUnit Value="0"/>
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<Title Value="filecopy"/>
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<Scaled Value="True"/>
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<ResourceType Value="res"/>
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<UseXPManifest Value="True"/>
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<XPManifest>
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<DpiAware Value="True"/>
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</XPManifest>
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<Icon Value="0"/>
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</General>
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<BuildModes Count="1">
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<Item1 Name="Default" Default="True"/>
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</BuildModes>
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<PublishOptions>
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<Version Value="2"/>
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<UseFileFilters Value="True"/>
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</PublishOptions>
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<RunParams>
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<FormatVersion Value="2"/>
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<Modes Count="0"/>
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</RunParams>
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<RequiredPackages Count="1">
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<Item1>
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<PackageName Value="LCL"/>
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</Item1>
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</RequiredPackages>
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<Units Count="2">
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<Unit0>
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<Filename Value="filecopy.lpr"/>
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<IsPartOfProject Value="True"/>
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</Unit0>
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<Unit1>
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<Filename Value="maincopy.pas"/>
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<IsPartOfProject Value="True"/>
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<ComponentName Value="Form1"/>
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<ResourceBaseClass Value="Form"/>
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</Unit1>
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</Units>
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</ProjectOptions>
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<CompilerOptions>
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<Version Value="11"/>
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<Target>
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<Filename Value="filecopy"/>
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</Target>
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<SearchPaths>
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<IncludeFiles Value="$(ProjOutDir)"/>
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<UnitOutputDirectory Value="lib/$(TargetCPU)-$(TargetOS)"/>
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</SearchPaths>
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<Linking>
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<Options>
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<Win32>
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<GraphicApplication Value="True"/>
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</Win32>
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</Options>
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</Linking>
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</CompilerOptions>
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<Debugging>
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<Exceptions Count="3">
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<Item1>
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<Name Value="EAbort"/>
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</Item1>
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<Item2>
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<Name Value="ECodetoolError"/>
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</Item2>
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<Item3>
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<Name Value="EFOpenError"/>
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</Item3>
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</Exceptions>
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</Debugging>
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</CONFIG>
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22
filecopy/filecopy.lpr
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22
filecopy/filecopy.lpr
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program filecopy;
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{$mode objfpc}{$H+}
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uses
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{$IFDEF UNIX}{$IFDEF UseCThreads}
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cthreads,
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{$ENDIF}{$ENDIF}
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Interfaces, // this includes the LCL widgetset
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Forms, maincopy
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{ you can add units after this };
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{$R *.res}
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begin
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RequireDerivedFormResource:=True;
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Application.Scaled:=True;
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Application.Initialize;
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Application.CreateForm(TForm1, Form1);
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Application.Run;
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end.
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57
filecopy/maincopy.lfm
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57
filecopy/maincopy.lfm
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object Form1: TForm1
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Left = 353
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Height = 240
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Top = 214
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Width = 680
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ClientHeight = 240
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ClientWidth = 680
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LCLVersion = '2.0.0.4'
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object lblCopyFrom: TLabel
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Left = 20
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Height = 19
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Top = 20
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Width = 118
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Caption = 'Copy from file:'
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ParentColor = False
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end
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object edtCopyFrom: TFileNameEdit
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Left = 20
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Height = 31
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Top = 48
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Width = 515
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FileName = 'edtCopyFrom'
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OnAcceptFileName = edtCopyFromAcceptFileName
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FilterIndex = 0
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HideDirectories = False
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ButtonWidth = 23
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NumGlyphs = 1
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MaxLength = 0
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TabOrder = 0
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Text = 'edtCopyFrom'
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end
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object lblCopyToFile: TLabel
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Left = 20
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Height = 19
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Top = 96
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Width = 164
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Caption = 'File will be copied to:'
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ParentColor = False
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end
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object cbDate: TCheckBox
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Left = 20
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Height = 21
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Top = 128
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Width = 270
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Caption = 'Copy original file''s date stamp.'
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TabOrder = 1
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end
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object btnCopy: TButton
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Left = 20
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Height = 25
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Top = 176
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Width = 75
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Caption = 'Copy file'
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OnClick = btnCopyClick
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TabOrder = 2
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end
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end
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120
filecopy/maincopy.pas
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120
filecopy/maincopy.pas
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unit maincopy;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils, Forms, Controls, Graphics, Dialogs, StdCtrls, EditBtn,
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FileUtil, LazUTF8, LazFileUtils;
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type
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{ TForm1 }
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TForm1 = class(TForm)
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btnCopy: TButton;
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cbDate: TCheckBox;
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edtCopyFrom: TFileNameEdit;
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lblCopyToFile: TLabel;
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lblCopyFrom: TLabel;
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procedure btnCopyClick(Sender: TObject);
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procedure edtCopyFromAcceptFileName(Sender: TObject; var Value: String);
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private
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SourceFileName: string;
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CopiedFileName: string;
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procedure CopyFile(sourceName, destinationName: string; copyDateToo: boolean);
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end;
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var
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Form1: TForm1;
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implementation
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{$R *.lfm}
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{ TForm1 }
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procedure TForm1.btnCopyClick(Sender: TObject);
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var append: string;
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begin
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CopyFile(SourceFileName, CopiedFileName, cbDate.Checked);
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btnCopy.Enabled := False;
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edtCopyFrom.Text := EmptyStr;
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case cbDate.Checked of
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False: append := ' created with current date';
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True: append := ' created with original date';
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end;
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lblCopyToFile.Caption := CopiedFileName + append;
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end;
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procedure TForm1.edtCopyFromAcceptFileName(Sender: TObject; var Value: String);
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var path, fName: string;
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begin
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if (Value = EmptyStr) then Exit;
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path := ExtractFilePath(Value);
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fName := ExtractFileName(Value);
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CopiedFileName := path + 'Copy of ' + fName;
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case FileExistsUTF8(CopiedFileName) of
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False: begin
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lblCopyToFile.Caption := 'File will be copied to: '
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+ CopiedFileName;
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btnCopy.Enabled := True;
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SourceFileName := Value;
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end;
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True: case QuestionDlg(
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'Warning', CopiedFileName + ' already exists' + sLineBreak +
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'Overwrite existing file?',
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mtWarning,
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[mrYes, 'Overwrite file', mrNo, 'Cancel file copy'],
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0
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) of
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mrYes: begin
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lblCopyToFile.Caption := 'File will be copied to: '
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+ CopiedFileName;
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btnCopy.Enabled := True;
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SourceFileName := Value;
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end;
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else begin
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Value := EmptyStr;
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btnCopy.Enabled := False;
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SourceFileName := EmptyStr;
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CopiedFileName := EmptyStr;
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end;
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end;
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end;
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end;
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procedure TForm1.CopyFile(sourceName, destinationName: string; copyDateToo: boolean);
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var
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src: TFileStream = nil;
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dest: TFileStream = nil;
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begin
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if SameText(sourceName, destinationName) then Exit;
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src := TFileStream.Create(UTF8ToSys(sourceName), fmOpenRead);
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try
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dest := TFileStream.Create(UTF8ToSys(destinationName), fmOpenWrite or fmCreate);
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try
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dest.CopyFrom(src, src.Size);
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if CopyDateToo
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then FileSetDate(dest.Handle, FileGetDate(src.Handle));
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finally
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dest.Free;
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end;
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finally
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src.Free;
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end;
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end;
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end.
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