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| unit ThreadAlertMsg;
interface
uses
Classes {$IFDEF MSWINDOWS} , Windows {$ENDIF}, Dialogs, SyncObjs, fmAlertMsg,
Controls, SysUtils, MMSystem, Graphics;
type
TAlert = class
private
FTitle,
FText,
FSound: String;
FOnTextClick: TNotifyEvent;
FIcone,
FSleep: Integer;
public
constructor Create(ATitle, AText, ASound: String; AOnTextClick: TNotifyEvent; AIcone, ASleep: Integer);
property Title: String read FTitle write FTitle;
property Text: String read FText write FText;
property Sound: String read FSound write FSound;
property OnTextClick: TNotifyEvent read FOnTextClick write FOnTextClick;
property Icone: Integer read FIcone write FIcone;
property Sleep: Integer read FSleep write FSleep;
end;
TAlertList = class(TList)
private
function GetItem(AIndex: integer): TAlert;
public
constructor Create;
destructor Destroy; override;
function Add(AAlert: TAlert): Integer;
function AddAlert(ATitle, AText, ASound: String; AOnTextClick: TNotifyEvent; AIcone, ASleep: Integer): Integer;
function IndexOf(AAlert: TAlert): Integer;
procedure Clear;
procedure Insert(AIndex: Integer; AAlert: TAlert);
procedure Delete(AIndex: Integer);
procedure Remove(AAlert: TAlert);
property Items[AIndex: Integer]: TAlert read GetItem;
end;
TThreadAlertMsg = class(TThread)
private
FAlertList: TAlertList;
GLock : TCriticalSection;
ActualAlert: TAlert;
procedure SetName;
procedure CheckArrayAlert;
procedure SyncSetAlertData;
procedure ThreadSleep(Time: Integer);
procedure DownFormAlert;
procedure UpFormAlert;
procedure SyncDownFormAlert;
procedure SyncUpFormAlert;
procedure SyncCloseFormAlert;
public
debugtxt:string;
procedure AddAlert(ATitle, AText: String; AIcone: String = ''; ASound: String = ''; AOnTextClick: TNotifyEvent = nil; ASleep: Integer = 5000);
constructor Create;
destructor Destroy;
procedure debug;
procedure showdbg(txt: String);
protected
procedure Execute; override;
end;
implementation
{$R sounds.RES}
{$IFDEF MSWINDOWS}
type
TThreadNameInfo = record
FType: LongWord; // doit être 0x1000
FName: PChar; // pointeur sur le nom (dans l'espace d'adresse de l'utilisateur)
FThreadID: LongWord; // ID de thread (-1=thread de l'appelant)
FFlags: LongWord; // réservé pour une future utilisation, doit être zéro
end;
{$ENDIF}
constructor TAlert.Create(ATitle, AText, ASound: String; AOnTextClick: TNotifyEvent; AIcone, ASleep: Integer);
begin
FTitle := ATitle;
FText := AText;
FSound := ASound;
FOnTextClick := AOnTextClick;
FIcone := AIcone;
FSleep := ASleep;
end;
constructor TAlertList.Create;
begin
inherited Create;
end;
destructor TAlertList.Destroy;
begin
try
Clear;
finally
inherited Destroy;
end;
end;
function TAlertList.Add(AAlert: TAlert): Integer;
begin
result := inherited Add(AAlert);
end;
function TAlertList.AddAlert(ATitle, AText, ASound: String; AOnTextClick: TNotifyEvent; AIcone, ASleep: Integer): Integer;
var
AAlert: TAlert;
begin
AAlert := TAlert.Create(ATitle, AText, ASound, AOnTextClick, AIcone, ASleep);
result := Add(AAlert);
end;
function TAlertList.IndexOf(AAlert: TAlert): Integer;
begin
result := inherited IndexOf(AAlert);
end;
procedure TAlertList.Insert(AIndex: Integer; AAlert: TAlert);
begin
inherited Insert(AIndex, AAlert);
end;
procedure TAlertList.Delete(AIndex: integer);
begin
Items[AIndex].Free;
inherited Delete(AIndex);
end;
procedure TAlertList.Remove(AAlert: TAlert);
begin
Items[IndexOf(AAlert)].Free;
inherited Remove(AAlert);
end;
function TAlertList.GetItem(AIndex: Integer): TAlert;
begin
result := TAlert(inherited Items[AIndex]);
end;
procedure TAlertList.Clear;
begin
while inherited Count > 0 do
Delete(0);
end;
{ TThreadAlertMsg }
procedure TThreadAlertMsg.SetName;
{$IFDEF MSWINDOWS}
var
ThreadNameInfo: TThreadNameInfo;
{$ENDIF}
begin
{$IFDEF MSWINDOWS}
ThreadNameInfo.FType := $1000;
ThreadNameInfo.FName := 'ThreadAlertMsg';
ThreadNameInfo.FThreadID := $FFFFFFFF;
ThreadNameInfo.FFlags := 0;
try
RaiseException( $406D1388, 0, sizeof(ThreadNameInfo) div sizeof(LongWord), @ThreadNameInfo );
except
end;
{$ENDIF}
end;
constructor TThreadAlertMsg.Create;
begin
inherited Create(False);
FreeOnTerminate := true;
FAlertList := TAlertList.Create;
GLock := TCriticalSection.Create;
end;
destructor TThreadAlertMsg.Destroy;
begin
inherited Destroy;
FAlertList.Clear;
FAlertList.Free;
GLock.Free;
end;
procedure TThreadAlertMsg.Execute;
begin
SetName;
CheckArrayAlert;
end;
procedure TThreadAlertMsg.CheckArrayAlert;
var
Time: Integer;
begin
repeat
ActualAlert := nil;
//Code ne devant être exécuté que par un thread à la fois
GLock.Acquire;
try
if FAlertList.Count > 0 then
begin
ActualAlert := TAlert.Create(FAlertList.Items[0].Title, FAlertList.Items[0].Text, FAlertList.Items[0].Sound, FAlertList.Items[0].OnTextClick, FAlertList.Items[0].Icone, FAlertList.Items[0].Sleep);
FAlertList.Delete(0);
end;
finally
GLock.Leave;
end;
//si alert il y a montrons la
if ActualAlert <> nil then
begin
// mettons les details a afficher en synchronizant car on modif une form
Synchronize(SyncSetAlertData);
UpFormAlert;
ThreadSleep(ActualAlert.Sleep);
DownFormAlert;
Synchronize(SyncCloseFormAlert);
ActualAlert.Free;
end;
// attendons 1 sec avant de regarder si nouvelle alert il y a
Time := 1000;
while (not Terminated) and (Time > 1) do
begin
Dec(Time, 100);
Sleep(100);
end;
until Terminated;
end;
procedure TThreadAlertMsg.UpFormAlert;
begin
// tant que le programme est ok on fait monter la popup jusqu'a sa position normal
while (not Terminated) and (AlertMsg.Top > AlertMsg.MaxTop) and (AlertMsg.Visible = True) do
begin
Synchronize(SyncUpFormAlert);
Sleep(15);
end;
end;
procedure TThreadAlertMsg.SyncUpFormAlert;
begin
// on fait monter la form nommé alertmsg par pas
AlertMsg.Top := AlertMsg.Top - 3;
AlertMsg.Height := AlertMsg.Height + 3;
end;
procedure TThreadAlertMsg.DownFormAlert;
var
MinTop: Integer;
begin
// calcul de la position ou a popup est réduite au max
MinTop := AlertMsg.MaxTop + AlertMsg.MaxHeight;
// tans que le programme tourne on reduit par pas jusqu'a la taille mini
while (not Terminated) and (AlertMsg.Top < MinTop) and (AlertMsg.Visible = True) do
begin
Synchronize(SyncDownFormAlert);
Sleep(15);
end;
end;
procedure TThreadAlertMsg.SyncDownFormAlert;
begin
AlertMsg.Top := AlertMsg.Top + 3;
AlertMsg.Height := AlertMsg.Height - 3;
end;
procedure TThreadAlertMsg.ThreadSleep(Time: Integer);
begin
while (not Terminated) and (Time > 1) and (AlertMsg.Visible = True) do
begin
Dec(Time, 100);
Sleep(100);
end;
end;
procedure TThreadAlertMsg.SyncCloseFormAlert;
begin
AlertMsg.Visible := false;
end;
procedure TThreadAlertMsg.SyncSetAlertData;
var
p: Pointer;
h: THandle;
begin
with AlertMsg do
begin
Caption := ActualAlert.Title;
TextLbl.Caption := ActualAlert.Text;
if ActualAlert.Icone <> 0 then
begin
IconsList.GetIcon(ActualAlert.Icone - 1, Icon); // Pour afficher la nouvelle
end
else
begin
Icon := nil;
end;
// CONFIGURATION DE LA PROCEDURE APPELEE LORS D'UN CLIC EVENTUEL SUR LE MESSAGE
if Assigned(ActualAlert.OnTextClick) then // Si une procédure est désignée...
begin
TextLbl.Cursor := crHandPoint; // On change le curseur
TextLbl.OnClick := ActualAlert.OnTextClick; // On assigne la procédure à l'événement du clic
end
else
begin // Sinon...
TextLbl.Cursor := crDefault; // On rétablit le curseur
TextLbl.OnClick := nil; // On ne donne pas suite à l'événement de clic
end;
Height := 0;
Top := AlertMsg.MaxTop + AlertMsg.MaxHeight;
Visible := true;
end;
// si il y a un son
if ActualAlert.Sound <> '' then
begin
// si c'est beep on beep
if AnsiLowerCase(ActualAlert.Sound) = 'beep' then
Beep // Beep si demandé
// si pas d'extension et pas beep c'est un nom de ressource .wav
else if AnsiPos('.wav', ActualAlert.Sound) = 0 then
begin
Try
H := LoadResource(0, FindResource(0, PChar(ActualAlert.Sound), 'WAV'));
P := LockResource(H);
sndPlaySound(p, SND_ASYNC or SND_MEMORY);
Finally
UnLockResource(H);
// FreeResource(H);
End;
end
else // pas beep et a .wav donc si le fichiers exists on le joue
if FileExists(ActualAlert.Sound) then
sndPlaySound(PChar(ActualAlert.Sound), SND_ASYNC);
end;
end;
procedure TThreadAlertMsg.debug;
begin
showmessage(debugtxt);
end;
procedure TThreadAlertMsg.showdbg(txt: String);
begin
debugtxt := txt;
synchronize(debug);
end;
procedure TThreadAlertMsg.AddAlert(ATitle, AText: String; AIcone: String = ''; ASound: String = ''; AOnTextClick: TNotifyEvent = nil; ASleep: Integer = 5000);
var
Icone: Integer;
begin
AIcone := AnsiLowerCase(AIcone);
if AIcone = '' then Icone := 0
else if AIcone = 'info' then Icone := 1
else if AIcone = 'question1' then Icone := 2
else if AIcone = 'question2' then Icone := 3
else if AIcone = 'warning1' then Icone := 4
else if AIcone = 'warning2' then Icone := 5
else if AIcone = 'quit' then Icone := 6
else if AIcone = 'stop' then Icone := 7
else if AIcone = 'go' then Icone := 8
else if AIcone = 'secure' then Icone := 9
else if AIcone = 'validate' then Icone := 10
else if AIcone = 'search' then Icone := 11
else if AIcone = 'sendmail' then Icone := 12
else if AIcone = 'newmail' then Icone := 13
else if AIcone = 'user' then Icone := 14
else Icone := 0;
//Code ne devant être exécuté que par un thread à la fois
GLock.Acquire;
try
FAlertList.AddAlert(ATitle, AText, ASound, AOnTextClick, Icone, ASleep);
finally
GLock.Leave;
end;
end;
end. |
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