{
* This Source Code Form is subject to the terms of the Mozilla Public License,
* v. 2.0. If a copy of the MPL was not distributed with this file, You can
* obtain one at http://mozilla.org/MPL/2.0/
*
* Copyright (C) 2005-2012, Peter Johnson (www.delphidabbler.com).
*
* $Rev$
* $Date$
*
* Class that provides information about the application.
}
unit UAppInfo;
interface
uses
// Project
UBaseObjects;
type
{
TAppInfo:
Static class that provides information about the application.
}
TAppInfo = class(TNoConstructObject)
strict private
class function GenerateKey: string;
{Generates unique program key for application in deterministic way.
@return Required key.
}
class function RegistrationCode: string;
{Reads program's registration code from persistent storage.
@return Registration code or '' if not registered.
}
public
const CompanyName = 'DelphiDabbler';
{Name of "company" that owns this program}
const ProgramName = 'CodeSnip';
{Name of program}
const ProgramCaption = ProgramName + ' 4';
{Name of program displayed in main window and task bar caption}
const FullProgramName = CompanyName + ' ' + ProgramName;
{Full name of program, including company name}
const ProgramID = 'codesnip';
{Machine readable identifier of program}
class function UserAppDir: string;
{Gets the CodeSnip data directory stored within the user's application
data directory.
@return Full path to per-user application data directory.
}
class function CommonAppDir: string;
{Gets the CodeSnip data directory stored within the common application
data directory.
@return Full path to common application data directory.
}
class function AppDataDir: string;
{Returns the directory where CodeSnip stores the "database" files.
@return Full path to database sub directory.
}
class function UserDataDir: string;
{Returns the directory where CodeSnip stores the user's "database" files.
@return Full path to database sub directory.
}
class function AppExeFilePath: string;
{Returns fully specified name of program's executable file.
@return Name of file.
}
class function AppExeDir: string;
{Returns the directory of CodeSnip's executable files.
@return Full path to executable files directory.
}
class function HelpFileName: string;
{Returns fully specified name of CodeSnip's help file.
@return Name of help file.
}
class function ProgramReleaseInfo: string;
{Gets information about the current program release. Includes any special
build information if present in version information.
@return Release information.
}
class function ProgramReleaseVersion: string;
{Gets current version number of current release of program.
@return Version number as dotted quad.
}
class function ProgramFileVersion: string;
{Gets version number of program's executable file.
@return Version number as dotted quad.
}
class function ProgramCopyright: string;
{Gets program's copyright information.
@return Copyright details.
}
class function ProgramKey: string;
{Gets program's unique identifying key. This key should be different on
each installation. If key does not exist it is created.
@return 32 digit key.
}
class procedure RegisterProgram(const Code, Name: string);
{Registers program by storing registration code and user name in
persistent storage.
@param Code [in] Registration code.
@param Name [in] Registered user name.
}
class function IsRegistered: Boolean;
{Checks if program is registered.
@return True if program registered.
}
class function RegisteredUser: string;
{Reads name of registered user from persistent storage.
@return User name or '' if not registered.
}
end;
implementation
uses
// Delphi
SysUtils,
// DelphiDabbler library
PJMD5,
// Project
USettings, UStrUtils, USystemID, USystemInfo, UVersionInfo;
{ TAppInfo }
class function TAppInfo.AppDataDir: string;
{Returns the directory where CodeSnip stores the "database" files.
@return Full path to database sub directory.
}
begin
Result := CommonAppDir + '\Database';
end;
class function TAppInfo.AppExeDir: string;
{Returns the directory of CodeSnip's executable files.
@return Full path to executable files directory.
}
begin
Result := ExtractFileDir(AppExeFilePath);
end;
class function TAppInfo.AppExeFilePath: string;
{Returns fully specified name of program's executable file.
@return Name of file.
}
begin
Result := ParamStr(0);
end;
class function TAppInfo.CommonAppDir: string;
{Gets the CodeSnip data directory stored within the common application data
directory.
@return Full path to common application data directory.
}
begin
Result := TSystemFolders.CommonAppData + '\DelphiDabbler\CodeSnip.4';
end;
class function TAppInfo.GenerateKey: string;
{Generates unique program key for application in deterministic way.
@return Required key.
}
begin
Result := StrToUpper(
TPJMD5.Calculate(
USystemID.SystemIDStr, TEncoding.ASCII
)
);
end;
class function TAppInfo.HelpFileName: string;
{Returns fully specified name of CodeSnip's help file.
@return Name of help file.
}
begin
Result := AppExeDir + '\CodeSnip.chm';
end;
class function TAppInfo.IsRegistered: Boolean;
{Checks if program is registered.
@return True if program registered.
}
begin
Result := RegistrationCode <> '';
end;
class function TAppInfo.ProgramCopyright: string;
{Gets program's copyright information.
@return Copyright details.
}
begin
Result := TVersionInfo.LegalCopyrightStr;
end;
class function TAppInfo.ProgramFileVersion: string;
{Gets version number of program's executable file.
@return Version number as dotted quad.
}
begin
Result := TVersionInfo.FileVersionNumberStr;
end;
class function TAppInfo.ProgramKey: string;
{Gets program's unique identifying key. This key should be different on each
installation. If key does not exist it is created.
@return 32 digit key.
}
var
Section: ISettingsSection; // persistent storage where key is recorded
begin
// Try to get key from storage
Section := Settings.ReadSection(ssApplication);
Result := Section.ItemValues['Key'];
if Result = '' then
begin
// Key not present: create and store it
Result := GenerateKey;
Section.ItemValues['Key'] := Result;
Section.Save;
end;
end;
class function TAppInfo.ProgramReleaseInfo: string;
{Gets information about the current program release. Includes any special
build information if present in version information.
@return Release information.
}
begin
Result := StrTrim(TVersionInfo.ProductVersionStr);
if StrTrim(TVersionInfo.SpecialBuildStr) <> '' then
Result := Result + '-' + StrTrim(TVersionInfo.SpecialBuildStr);
end;
class function TAppInfo.ProgramReleaseVersion: string;
{Gets current version number of current release of program.
@return Version number as dotted quad.
}
begin
Result := TVersionInfo.ProductVersionNumberStr;
end;
class function TAppInfo.RegisteredUser: string;
{Reads name of registered user from persistent storage.
@return User name or '' if not registered.
}
var
Section: ISettingsSection; // persistent storage where name is recorded
begin
Section := Settings.ReadSection(ssApplication);
Result := Section.ItemValues['RegName'];
end;
class procedure TAppInfo.RegisterProgram(const Code, Name: string);
{Registers program by storing registration code and user name in persistent
storage.
@param Code [in] Registration code.
@param Name [in] Registered user name.
}
var
Section: ISettingsSection; // persistent storage where code is to be recorded
begin
Section := Settings.ReadSection(ssApplication);
Section.ItemValues['RegCode'] := Code;
Section.ItemValues['RegName'] := Name;
Section.Save;
end;
class function TAppInfo.RegistrationCode: string;
{Reads program's registration code from persistent storage.
@return Registration code or '' if not registered.
}
var
Section: ISettingsSection; // persistent storage where code is recorded
begin
Section := Settings.ReadSection(ssApplication);
Result := Section.ItemValues['RegCode'];
end;
class function TAppInfo.UserAppDir: string;
{Gets the CodeSnip data directory stored within the user's application data
directory.
@return Full path to per-user application data directory.
}
begin
Result := TSystemFolders.PerUserAppData + '\DelphiDabbler\CodeSnip.4';
end;
class function TAppInfo.UserDataDir: string;
{Returns the directory where CodeSnip stores the user's "database" files.
@return Full path to database sub directory.
}
begin
Result := UserAppDir + '\UserDatabase';
end;
end.
