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| { Unit lzcsound
Copyright (C) 2009 Lazarus-fr Team
This source is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your option)
any later version.
This code is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details.
A copy of the GNU General Public License is available on the World Wide Web
at <http://www.gnu.org/copyleft/gpl.html>. You can also obtain it by writing
to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA.
Author: Serge Girard
Abstract:
Two components to play wav files
Requirements: FPC 2.2.4
}
unit lzcsound;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils,PropEdits, Dialogs, FileUtil, LResources,LZCBase;
type
TSoundFileNamePropertyEditor = class(TFileNamePropertyEditor)
public
function GetDialogTitle : string; override;
function GetFilter: string; override;
function GetInitialDirectory: string; override;
procedure Edit; override;
end;
TLZCWave = class(TLZCustomComponent)
protected
FSoundFile : String;
FOnPlay : TNotifyEvent;
private
procedure SetSoundFile(const AValue: string);
public
procedure Play;
published
property OnPlay : TNotifyEvent read FOnPlay write FOnPlay;
property SoundFile : String read FSoundFile write SetSoundFile;
end;
TLZClrsWave = class(TLZCustomComponent)
protected
FLrsSoundName : String;
FVolatile : Boolean;
FOnPlay : TNotifyEvent;
public
procedure Play;
published
property OnPlay : TNotifyEvent read FOnPlay write FOnPlay;
property LrsSoundName : String read FLrsSoundName write FLrsSoundName;
property Volatile : Boolean read FVolatile write FVolatile;
end;
{$IFDEF WINDOWS}
SoundFlags =(
SND_SYNC = $0000, // play synchronously (default) */
SND_ASYNC = $0001, // play asynchronously */
SND_NODEFAULT = $0002, // silence (!default) if sound not found */
SND_MEMORY = $0004, // pszSound points to a memory file */
SND_LOOP = $0008, // loop the sound until next sndPlaySound */
SND_NOSTOP = $0010, // don't stop any currently playing sound */
SND_NOWAIT = $00002000, // don't wait if the driver is busy */
SND_ALIAS = $00010000, // name is a registry alias */
SND_ALIAS_ID = $00110000, // alias is a predefined ID */
SND_FILENAME = $00020000, // name is file name */
SND_RESOURCE = $00040004 // name is resource name or atom */
);
{$ENDIF}
{$IFDEF WINCE}
function WinCEPlaySound(x1: PWideChar; x2: HMODULE; x3: DWORD): longbool;stdcall; external 'coredll.dll' name 'PlaySoundW';
{$ENDIF}
{$IFDEF MSWINDOWS}
function WindowsPlaySound(pszSound: PChar; hmod: HMODULE; fdwSound: DWORD): BOOLean; stdcall; external 'winmm.DLL' name 'PlaySound';
{$ENDIF}
procedure Register;
resourcestring
rsDialogTitle = 'A la recherche du Son Perdu';
rsDialogFilter = 'Fichiers WAV|*.wav';
implementation
uses LazIDEIntf;
procedure Register;
begin
RegisterComponents('LZSound',[TLZCWave,TLZClrsWave]);
RegisterPropertyEditor(TypeInfo(string), TLZCWave, 'SoundFile',TSoundFileNamePropertyEditor);
end;
{TLZCWave}
procedure TLZCWave.Play;
begin
if Assigned(FOnPlay) then OnPlay(self);
{$IFDEF WINDOWS}
{$IFDEF WINCE}
WinCEPlaysound(FSoundFile,0,0);
{$ELSE}
WindowsPlaysound(@FSoundFile[1],0, LongWord(SND_FILENAME));
{$ENDIF}
{$ENDIF}
{$IFDEF LINUX}
SysUtils.ExecuteProcess(FindDefaultExecutablePath('paplay'),FSoundFile);
{$ENDIF}
end;
procedure TLZCWave.SetSoundFile(const AValue: string);
var
fn: string;
begin
if (FSoundFile = AValue) then
exit;
FSoundFile := AValue;
if (FSoundFile = '') then
exit;
if (csDesigning in ComponentState) then
begin
fn := ExtractFileName(AValue);
FSoundFile := ExtractFilePath(AValue);
FSoundFile := FSoundFile + fn;
end
else
begin
FSoundFile := AValue;
end;
end;
{TLZClrsWave}
procedure TLZClrsWave.Play;
var FileName : String;
Stream: TFileStream;
begin
FileName:=SysUtils.GetTempDir(False)+FLrsSoundName+'.wav';
Stream := TFileStream.Create(FileName, fmCreate);
with LazarusResources.Find(FLrsSoundName) do
Stream.Write(PChar(Value)^, Length(Value));
Stream.Free;
if Assigned(FOnPlay) then OnPlay(self);
{$IFDEF WINDOWS}
{$IFDEF WINCE}
WinCEPlaysound(FileName,0,0);
{$ELSE}
WindowsPlaysound(@FileName[1],0, $00020000);
{$ENDIF}
{$ENDIF}
{$IFDEF LINUX}
SysUtils.ExecuteProcess(FindDefaultExecutablePath('paplay'),FileName);
{$ENDIF}
if FVolatile then DeleteFile(FileName);
end;
{ TSoundFileNamePropertyEditor }
function TSoundFileNamePropertyEditor.GetFilter: string;
begin
Result := rsDialogFilter;
end;
function TSoundFileNamePropertyEditor.GetDialogTitle: string;
begin
Result := rsDialogTitle;
end;
function TSoundFileNamePropertyEditor.GetInitialDirectory: string;
begin
Result := ExtractFilePath(LazarusIDE.ActiveProject.ProjectInfoFile);
end;
procedure TSoundFileNamePropertyEditor.Edit;
begin
With CreateFileDialog do
Try
Filter:=rsDialogFilter;
Options:=GetDialogOptions;
FileName:=GetStrValue;
InitialDir:=GetInitialDirectory;
Title:=GetDialogTitle;
If Execute then
SetFilename(Filename);
Finally
Free;
end;
end;
end. |
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