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{
/***************************************************************************
Splash.pp
---------
***************************************************************************/
***************************************************************************
* *
* 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1335, USA. *
* *
***************************************************************************
}
unit Splash;
{$mode objfpc}{$H+}
interface
uses
Buttons,
Classes,
Controls,
ExtCtrls,
Forms,
Graphics,
LResources,
SysUtils,
LazConf;
type
{ TSplashForm }
TSplashForm = class(TForm)
Image: TImage;
procedure ApplicationOnIdle(Sender: TObject; var {%H-}Done: boolean);
procedure ImagePaint(Sender: TObject);
private
procedure LoadSplash;
protected
procedure DoFirstShow; override;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
procedure Show;
end;
var
SplashForm: TSplashForm;
implementation
uses
GraphUtil;
{$R *.lfm}
{$R ../images/splash_logo.res}
const
VersionStyle: TTextStyle =
(
Alignment : taCenter;
Layout : tlCenter;
SingleLine : True;
Clipping : True;
ExpandTabs : False;
ShowPrefix : False;
Wordbreak : False;
Opaque : False;
SystemFont : False;
RightToLeft: False;
EndEllipsis: False;
);
VersionFontStyle: TFontStyles = [fsBold];
VersionFontColor: TColor = clBlue;
constructor TSplashForm.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
Application.AddOnIdleHandler(@ApplicationOnIdle);
end;
destructor TSplashForm.Destroy;
begin
Application.RemoveOnIdleHandler(@ApplicationOnIdle);
inherited Destroy;
SplashForm := nil;
end;
procedure TSplashForm.Show;
begin
end;
procedure TSplashForm.ApplicationOnIdle(Sender: TObject; var Done: boolean);
begin
Hide;
end;
procedure TSplashForm.ImagePaint(Sender: TObject);
var
ATextRect: TRect;
begin
ATextRect := Rect(
Image.Left,
Image.Height - Image.Canvas.TextHeight('Hg')*5 div 4,
Image.Width,
Image.Height);
Image.Canvas.Font.Style := VersionFontStyle;
Image.Canvas.Font.Color := VersionFontColor;
Image.Canvas.TextRect(ATextRect, ATextRect.Left, ATextRect.Top, LazarusVersionStr, VersionStyle);
end;
procedure TSplashForm.LoadSplash;
begin
Image.Picture.LoadFromResourceName(hInstance, 'splash_logo', TPortableNetworkGraphic);
end;
procedure TSplashForm.DoFirstShow;
var
W, H: Integer;
ScaleFactor: Double;
begin
inherited DoFirstShow;
LoadSplash;
ScaleFactor := GetCanvasScaleFactor; // Usually 1.0, but on macOS = 2.0
W := round(Image.Width * ScaleFactor);
H := round(Image.Height * ScaleFactor);
ScaleImg(Image.Picture.Bitmap, W, H);
end;
end.
|
