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| unit Unit1;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, StdCtrls,
LResources, ExtCtrls;
type
TColoredProgressBar = class(TPaintBox)
private
{ Private declarations }
FCouleur1: TColor;
FCouleur2: TColor;
FCouleur3: TColor;
FCouleur4: TColor;
FProgressif: boolean;
FMax: integer;
FMin: integer;
FPosition: integer;
FTexte:string;
FBitmap: TBitmap;
procedure SetCouleur1(New: TColor);
procedure SetCouleur2(New: TColor);
procedure SetCouleur3(New: TColor);
procedure SetCouleur4(New: TColor);
procedure SetProgressif(New: boolean);
procedure SetMax(New: integer);
procedure SetMin(New: integer);
procedure SetPosition(New: integer);
procedure SetCaption(New: String);
protected
{ Protected declarations }
procedure Paint; override;
public
{ Public declarations }
constructor Create(AOwner : TComponent); override;
destructor Destroy; override;
published
{ Published declarations }
property Color1: TColor read FCouleur1 write SetCouleur1 default clRed;
property Color2: TColor read FCouleur2 write SetCouleur2 default clYellow;
property Color3: TColor read FCouleur3 write SetCouleur3 default clLime;
property Color4: TColor read FCouleur4 write SetCouleur4 default clBlue;
property Progressive: boolean read FProgressif write SetProgressif default True;
property Maximum: integer read FMax write SetMax default 100;
property Minimum: integer read FMin write SetMin default 0;
property Pos: integer read FPosition write SetPosition;
property Caption: String read FTexte write SetCaption;
end;
type
{ TForm1 }
TForm1 = class(TForm)
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ private declarations }
public
{ public declarations } // C:\lazarus\lcl\interfacebase.pp
end;
var
Form1: TForm1;
implementation
{ TForm1 }
procedure TForm1.Button1Click(Sender: TObject);
var
MyColoredProgressBar: TColoredProgressBar;
i: integer;
begin
MyColoredProgressBar:=TColoredProgressBar.Create(self);
MyColoredProgressBar.Top:=27;
MyColoredProgressBar.Left:=27;
MyColoredProgressBar.Height:=54;
MyColoredProgressBar.Width:=162;
MyColoredProgressBar.Maximum:=100;
MyColoredProgressBar.Minimum:=0;
MyColoredProgressBar.Show;
// ShowMessage(IntToStr(MyColoredProgressBar.Canvas.Width));
MyColoredProgressBar.Progressive:=True;
MyColoredProgressBar.Parent:=self;
MyColoredProgressBar.Pos:=0;
for i:=0 to 10
do begin
MyColoredProgressBar.Pos:=10*i;
MyColoredProgressBar.Invalidate;
Application.ProcessMessages;
Sleep(300);
// ShowMessage(IntToStr(i));
end;
MyColoredProgressBar.Free;
end;
{$R *.lfm}
constructor TColoredProgressBar.Create(AOwner : TComponent);
begin
inherited;
Width:=100;
Height:=20;
FCouleur1:=clRed;
FCouleur2:=clYellow;
FCouleur3:=clLime;
FCouleur4:=clBlue;
FMax:=100;
FMin:=0;
FPosition:=0;
end;
destructor TColoredProgressBar.Destroy;
begin
inherited;
end;
procedure TColoredProgressBar.SetCouleur1(New: TColor);
begin
FCouleur1 := New;
end;
procedure TColoredProgressBar.SetCouleur2(New: TColor);
begin
FCouleur2 := New;
end;
procedure TColoredProgressBar.SetCouleur3(New: TColor);
begin
FCouleur3 := New;
end;
procedure TColoredProgressBar.SetCouleur4(New: TColor);
begin
FCouleur4 := New;
end;
procedure TColoredProgressBar.SetProgressif(New: boolean);
begin
FProgressif := New;
end;
procedure TColoredProgressBar.SetMax(New: integer);
begin
FMax := New;
end;
procedure TColoredProgressBar.SetMin(New: integer);
begin
FMin := New;
end;
procedure TColoredProgressBar.SetPosition(New: integer);
begin
FPosition := New;
end;
procedure TColoredProgressBar.SetCaption(New: String);
begin
FTexte:=New;
end;
procedure TColoredProgressBar.Paint;
var
Seuil,Plage,xt, yt: integer;
Rect: TRect;
Lcol,Hcol:TColor;
R,G,B,rh,gh,bh,rl,gl,bl:byte;
X:integer;
S:String;
begin
if (FMax-FMin)>0
then X:=round((100*(FPosition-FMin))/(FMax-FMin))
else X:=0;
S:=FTexte+Format(' %3d%%', [X]);
xt := (Width - Canvas.GetTextWidth(S)) div 2;
yt:=(Height - Canvas.GetTextHeight(S)) div 2;
Canvas.Brush.Color := clWhite;
Canvas.Brush.Style := bsSolid;
Canvas.FillRect(0, 0, Canvas.Width, Canvas.Height);
Canvas.Font.Color := clBlack;
// [EDIT]
// Canvas.TextOut(xt, yt, S); exit;
// [/EDIT]
if (X >= 66) then
begin
rl:=Red(FCouleur3);
rh:=Red(FCouleur4);
gl:=Green(FCouleur3);
gh:=Green(FCouleur4);
bl:=Blue(FCouleur3);
bh:=Blue(FCouleur4);
Seuil:=66;
Plage:=100-66;
end;
if (X >= 33) and (X < 66) then
begin
rl:=Red(FCouleur2);
rh:=Red(FCouleur3);
gl:=Green(FCouleur2);
gh:=Green(FCouleur3);
bl:=Blue(FCouleur2);
bh:=Blue(FCouleur3);
Seuil:=33;
Plage:=66-33;
end;
if (X < 33) then
begin
rl:=Red(FCouleur1);
rh:=Red(FCouleur2);
gl:=Green(FCouleur1);
gh:=Green(FCouleur2);
bl:=Blue(FCouleur1);
bh:=Blue(FCouleur2);
Seuil:=0;
Plage:=33-0;
end;
if fProgressif then
begin
R:=round((rh-rl)*(X-Seuil)/Plage+rl) ;
G:=round((gh-gl)*(X-Seuil)/Plage+gl) ;
B:=round((bh-bl)*(X-Seuil)/Plage+bl) ;
Canvas.Brush.Color := RGBToColor(R, G, B);
end
else
begin
if X>=100
then begin
X:=100;
Canvas.Brush.Color := FCouleur4;
end
else Canvas.Brush.Color := RGBToColor(rl, gl, bl);
end;
xt:=(X * Width) div 100;
Canvas.FillRect(0, 0, xt, Canvas.Height);
Canvas.Brush.Color := clWhite;
Canvas.FillRect(xt, 0,Canvas.Width, Canvas.Height);
// [EDIT]
Canvas.TextOut(xt, yt, S); exit;
// [/EDIT]
Rect.Left := 0;
Rect.Top := 0;
Rect.Right := Width;
Rect.Bottom := Height;
// Canvas.CopyMode := cmSrcAnd;
// Canvas.CopyRect(Rect, MaBmp.Canvas, Rect);
// MaBmp.Free;
// inherited;
end;
end. |
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