Problèmes evenements et propriété

**Basile le disciple** · 26/04/2013, 10h40

J'ai essayé de faire un objet graphique et j'essaie de gérer des evenements. Sauf que ça ne marche pas(sauf le OnPaint).Pourquoi? et comment y remédier? De plus, ma propriété PopupMenu ne marche pas.

code ci-joint :

Code :

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unit UPaintbox32;
 
interface
 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls, StdCtrls, Menus, ComCtrls;
 
               ///////////////////
               //* TPaintbox32 *//
               ///////////////////
 
type
  TMouseEvent = procedure(sender : TObject;shift : TShiftState;x,y : integer) of object;
  TKeyPressEvent = procedure(Sender: TObject; var Key: Char) of object;
  TMouseWheelEvent =procedure(Sender: TObject; Shift: TShiftState;WheelDelta: Integer; MousePos: TPoint; var Handled: Boolean) of object;
  TPaintbox32 = class(TWINCONTROL)
  private
      //f
    fwidth,fheight,ftop,fleft,fTag : integer;
    fClientRect : TRect;
    fHelpKeyWord,fhint : string;
    fHelpType : THelpType;
    fDragKind : TDragKind;
    fDragCursor,fCursor : TCursor;
    fDragMode : TDragMode;
    fAlign : TAlign;
    fHelpContext : THelpContext;
    fPopupMenu : TPopupMenu;
    fClientOrigin : TPoint;
    fShowHint,fVisible : boolean;
    fAnchors : TAnchors;
    fConstraints : TSizeConstraints;
      //evenements
    fPaint,fClick,fdblclick : TNotifyEvent;
    fMouseMove : TMouseEvent;
    fKeyPress : TKeyPressEvent;
    fMouseWheel : TMouseWheelEvent;
      //objets
    Paintbox1 : TPaintbox;
    bmp : TBitmap;
    Button : TButton;
    SCrollBox : TScrollBox;
      //procedure
    procedure Paint(sender : TObject);
    procedure clic(sender : TObject);
    procedure dblclic(sender : TObject);
    procedure setleft(x : integer);
    procedure settop(x : integer);
    procedure setwidth(x : integer);
    procedure setheight(x : integer);
    procedure setCanvas(x : TCanvas);
    procedure setCursor(x : TCursor);
    procedure setAlign(x : TAlign);
    procedure setAnchors(x : TAnchors);
    procedure setConstraints(x : TSizeConstraints);
    procedure setDragCursor(x : TCursor);
    procedure setDragKind(x : TDragKind);
    procedure setDragMode(x : TDragMode);
    procedure setHelpContext(x : THelpContext);
    procedure setHelpKeyWord(x : string);
    procedure setHelpType(x : THelpType);
    procedure setPopupMenu(x : TPopupMenu);
    procedure setTag(x : integer);
    procedure setHint(x : string);
    procedure setShowHint(x : boolean);
    procedure setVisible(x : boolean);
    procedure move(Sender: TObject; Shift: TShiftState; X,Y: Integer);
    procedure KeyPress(Sender: TObject; var Key: Char);
    procedure MouseWheel(Sender: TObject; Shift: TShiftState;WheelDelta: Integer; MousePos: TPoint; var Handled: Boolean);
      // function
   function getCanvas : TCanvas;
  public
      //constructor
    constructor create (aowner : TWINCONTROL);
      //canvas
    property Canvas : TCanvas read getcanvas write setcanvas;
      //procedure
    procedure BringToFront;
    procedure SendToBack;
  published
      //property
    property Left : integer read fleft write setleft;
    property Top : integer read ftop write settop;
    property Width : integer read fwidth write setwidth;
    property Height : integer read fheight write setheight;
    property ClientRect : TRect read fClientRect;
    property Constraints : TSizeConstraints read fConstraints write setConstraints;
    property Cursor : TCursor read fCursor write setCursor;
    property ClientOrigin : TPoint read fClientOrigin;
    property Align : TAlign read fAlign write setAlign;
    property Anchors : TAnchors read fAnchors write setAnchors;
    property DragCursor : TCursor read fDragCursor write setDragCursor;
    property DragKind : TDragKind read fDragKind write setDragKind;
    property DragMode : TDragMode read fDragMode write setDragMode;
    property HelpContext : THelpContext read fHelpContext write setHelpContext;
    property HelpKeyWord : string read fHelpKeyWord write setHelpKeyWord;
    property HelpType : THelpType read fHelpType write setHelpType;
    property PopupMenu : TPopupMenu read fPopupMenu write setPopupMenu;
    property Tag : integer read fTag write setTag;
    property Hint : string read fHint write setHint;
    property ShowHint : boolean read fShowHint write setShowHint;
    property Visible : boolean read fVisible write setVisible;
      //TNotifyEvent
    property OnPaint : TNotifyEvent read fPaint write fPaint;
    property OnClick : TNotifyEvent read fClick write fClick;
    property OndblClick : TNotifyEvent read fdblclick write fdblclick;
    property OnMouseMove : TMouseEvent read fMouseMove write fMouseMove;
    property OnKeyPress : TKeyPressEvent read fKeyPress write fKeyPress;
    property OnMouseWheel : TMouseWheelEvent read fMouseWheel write fMouseWheel;
  end;
 
 
implementation
 
constructor TPaintbox32.create(aowner : TWINCONTROL);
begin
  inherited create(aowner);
  fWidth:=100;
  fHeight:=100;
  fVisible:=true;
    //create
  paintbox1:=TPaintbox.Create(aowner);
  ScrollBox:=TScrollBox.Create(aowner);
  Button:=TButton.Create(aowner);
  bmp:=TBitmap.Create;
    //with object do
  With Paintbox1 do
  begin
    parent:=aowner;
    Width:=fWidth;
    Top:=fTop;
    Left:=fLeft;
    Enabled:=false;
    Height:=fHeight;
    OnPaint:=Paint;
    OnClick:=clic;
    OndblClick:=dblClic;
    OnMouseMove:=move;
  end;
  With bmp do
  begin
    Width:=fWidth;
    Height:=fHeight;
  end;
  With Button do
  begin
    parent:=self;
    Visible:=true;
    BringToFront;
    Width:=fWidth;
    Height:=fHeight;
    OnKeyPress:=KeyPress;
  end;
  With ScrollBox do
  begin
    parent:=self;
    Width:=fWidth;
    Height:=fHeight;
    OnMouseWheel:=MouseWheel;
  end;
  fclientrect:=rect(0,0,fWidth,fHeight);
end;
 
procedure TPaintbox32.setleft(x : integer);
begin
  fLeft:=x;
  Paintbox1.Left:=fLeft;
end;
 
procedure TPaintbox32.settop(x : integer);
begin
  fTop:=x;
  Paintbox1.Top:=ftop;
end;
 
procedure TPaintbox32.setwidth(x : integer);
begin
  fWidth:=x;
  Paintbox1.Width:=fWidth;
  bmp.Width:=fWidth;
  Button.Width:=fWidth;
  ScrollBox.Width:=fWidth;
  fClientRect:=rect(0,0,fwidth,fheight);
end;
 
procedure TPaintbox32.setheight(x : integer);
begin
  fHeight:=x;
  Paintbox1.Height:=fHeight;
  bmp.Height:=fHeight;
  Button.Height:=fHeight;
  ScrollBox.Height:=fHeight;
  fClientRect:=rect(0,0,fwidth,fheight);
end;
 
procedure TPaintbox32.Paint(sender : TObject);
begin
  if assigned(fPaint) then fPaint(self);
end;
 
procedure TPaintbox32.setCanvas(x : TCanvas);
begin
  bmp.Assign(x);
end;
 
function TPaintbox32.getCanvas : TCanvas;
begin
  result:=bmp.Canvas;
  if fVisible then Paintbox1.Canvas.Draw(0,0,bmp) else Paintbox1.Canvas.Draw(fWidth,fHeight,bmp);
end;
 
procedure TPaintbox32.setCursor(x : TCursor);
begin
  Paintbox1.Cursor:=x;
  fCursor:=Paintbox1.Cursor;
end;
 
procedure TPaintbox32.move(Sender: TObject; Shift: TShiftState; X,
  Y: Integer);
begin
  fClientOrigin.X:=x;
  fClientOrigin.Y:=y;
  if assigned(fMouseMove) then fMouseMove(self,shift,x,y);
end;
 
procedure TPaintbox32.clic(sender : TObject);
begin
  if assigned(fclick) then fclick(self);
end;
 
procedure TPaintbox32.dblclic(sender : TObject);
begin
  if assigned(fdblclick) then fdblclick(self);
end;
 
procedure TPaintbox32.setAlign(x : TAlign);
begin
  Paintbox1.Align:=x;
  fAlign:=Paintbox1.Align;
  fWidth:=Paintbox1.Width;
  fHeight:=Paintbox1.Height;
  With ScrollBox do
  begin
    Align:=fAlign;
  end;
    Button.Align:=fAlign;
    bmp.Width:=fWidth;
    bmp.Height:=fHeight;
    fclientrect:=rect(0,0,fWidth,fHeight);
end;
 
procedure TPaintbox32.setAnchors(x : TAnchors);
begin
  Paintbox1.Anchors:=x;
  fAnchors:=Paintbox1.Anchors;
end;
 
procedure TPaintbox32.setConstraints(x : TSizeConstraints);
begin
  Paintbox1.Constraints:=x;
  fConstraints:=Paintbox1.Constraints;
end;
 
procedure TPaintbox32.setDragCursor(x : TCursor);
begin
  Paintbox1.DragCursor:=x;
  fDragCursor:=Paintbox1.DragCursor;
end;
 
procedure TPaintbox32.setDragKind(x : TDragKind);
begin
  Paintbox1.DragKind:=x;
  fDragKind:=Paintbox1.DragKind;
end;
 
procedure TPaintbox32.setDragMode(x : TDragMode);
begin
  Paintbox1.DragMode:=x;
  fDragMode:=Paintbox1.DragMode;
end;
procedure TPaintbox32.setHelpContext(x : THelpContext);
begin
  Paintbox1.HelpContext:=x;
  fHelpContext:=Paintbox1.HelpContext;
end;
 
procedure TPaintbox32.setHelpKeyWord(x : string);
begin
  Paintbox1.HelpKeyword:=x;
  fHelpKeyWord:=Paintbox1.HelpKeyword;
end;
 
procedure TPaintbox32.setHelpType(x : THelpType);
begin
  Paintbox1.HelpType:=x;
  fHelpType:=Paintbox1.HelpType;
end;
 
procedure TPaintbox32.setPopupMenu(x : TPopupMenu);
begin
  Paintbox1.PopupMenu:=x;
  fPopupMenu:=Paintbox1.PopupMenu;
end;
 
procedure TPaintbox32.setTag(x : integer);
begin
  Paintbox1.Tag:=x;
  fTag:=Paintbox1.Tag;
end;
 
procedure TPaintbox32.BringToFront;
begin
  Paintbox1.BringToFront;
end;
 
procedure TPaintbox32.SendToBack;
begin
  Paintbox1.SendToBack;
end;
 
procedure TPaintbox32.setHint(x : string);
begin
  Paintbox1.Hint:=x;
  fHint:=Paintbox1.Hint;
end;
 
procedure TPaintbox32.setShowHint(x : boolean);
begin
  Paintbox1.ShowHint:=x;
  fShowHint:=Paintbox1.ShowHint;
end;
 
procedure TPaintbox32.setVisible(x : boolean);
begin
  Paintbox1.Visible:=x;
  fVisible:=Paintbox1.Visible;
end;
 
procedure TPaintbox32.KeyPress(Sender: TObject; var Key: Char);
begin
  key:=upCase(Key);
  if assigned(fKeyPress) then fKeyPress(self,key);
end;
 
procedure TPaintbox32.MouseWheel(Sender: TObject; Shift: TShiftState;WheelDelta: Integer; MousePos: TPoint; var Handled: Boolean);
begin
  if assigned(fMouseWheel) then fMouseWheel(self,shift,WheelDelta,MousePos,Handled);
end;
 
 
end.

Code :

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unit Unit1;
 
interface
 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls,UPaintbox32, StdCtrls, Menus, ComCtrls;
 
type
  TForm1 = class(TForm)
    PaintBox1: TPaintBox;
    Timer1: TTimer;
    PopupMenu1: TPopupMenu;
    fgn1: TMenuItem;
    the1: TMenuItem;
    thyn1: TMenuItem;
    n1: TMenuItem;
    hyn1: TMenuItem;
    y1: TMenuItem;
    procedure FormCreate(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
  private
    { Déclarations privées }
    p : integer;
    Paintbox32 : TPaintbox32;
    procedure KeyPress2(sender : TObject;var Key : Char);
    procedure Paint2(sender : TObject);
    procedure dblclic(sender : TObject);
    procedure clic(sender : TObject);
    procedure Mouse(sender : TObject;shift : TShiftState;x,y : integer);
    procedure MouseWheel(Sender: TObject; Shift: TShiftState;WheelDelta: Integer; MousePos: TPoint; var Handled: Boolean);
  public
    { Déclarations publiques }
  end;
 
var
  Form1: TForm1;
 
implementation
 
{$R *.dfm}
 
procedure TForm1.FormCreate(Sender: TObject);
begin
  Paintbox32:=TPaintbox32.create(self);
  With Paintbox32 do
  begin
    Top:=100;
    Left:=100;
    Width:=200;
    Height:=200;
    Cursor:=crHandPoint;
    OnPaint:=Paint2;
    OnMouseMove:=Mouse;
    OnClick:=clic;
    OndblClick:=dblclic;
    OnKeyPress:=KeyPress2;
    OnMouseWheel:=mouseWheel;
    ShowHint:=true;
    Hint:='Hint';
  end;
end;
 
procedure TForm1.Paint2(sender : TObject);
begin
  With Paintbox32.Canvas do
  begin
    Brush.Color:=clwhite;
    rectangle(Paintbox32.ClientRect);
    Brush.Color:=clred;
    Rectangle(p,90,p+20,110);
  end;
end;
 
procedure TForm1.Timer1Timer(Sender: TObject);
begin
  inc(p);
  Paint2(self);
end;
 
procedure TForm1.dblclic(sender : TObject);
begin
  Caption:='OnDblClick';
end;
 
procedure TForm1.Mouse(sender : TObject;shift : TShiftState;x,y : integer);
begin
  Caption:='OnMouseMove';
end;
 
procedure TForm1.clic(sender : TObject);
begin
  Caption:='OnClick';
end;
 
procedure TForm1.KeyPress2(sender : TObject;var key : Char);
begin
  Caption:='OnKeyPress';
end;
 
procedure TForm1.MouseWheel(Sender: TObject; Shift: TShiftState;WheelDelta: Integer; MousePos: TPoint; var Handled: Boolean);
begin
  Caption:='OnMouseWheel';
end;
 
end.

Meci de répondre.

**Andnotor** · 26/04/2013, 11h23

Parce que l'héritage n'est pas respecté. Pour que ton composant récupère les clicks, il faut redéfinir la méthode Click :

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protected
  procedure Click; override;

Idem pour le reste.

**Basile le disciple** · 26/04/2013, 11h37

citation :

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protected
  procedure Click; override;

D'accord mais qu'est-ce que je mets dans la procedure click?
Et comment je fais pour ma propriété PopupMenu?

Sinon c'est sympa de m'avoir répondu aussi vite

Problèmes evenements et propriété

Delphi

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