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Merge pull request #128 from bgrabitmap/dev-bgracontrols
Dev bgracontrols
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Original file line number | Diff line number | Diff line change |
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unit BCMaterialProgressBarMarquee; | ||
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{$mode delphi} | ||
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interface | ||
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uses | ||
Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, BGRAGraphicControl, | ||
ExtCtrls, BGRABitmap, BGRABitmapTypes; | ||
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type | ||
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{ TBCMaterialProgressBarMarquee } | ||
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TBCMaterialProgressBarMarquee = class(TBGRAGraphicControl) | ||
private | ||
FBarColor: TColor; | ||
progressbasr_cx, progressbar_cw: integer; | ||
progressbar_x, progressbar_w: integer; | ||
progressbar_increase: boolean; | ||
FTimer: TTimer; | ||
procedure SetBarColor(AValue: TColor); | ||
procedure TimerOnTimer(Sender: TObject); | ||
protected | ||
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public | ||
procedure DiscardBitmap; | ||
procedure RedrawBitmapContent; override; | ||
constructor Create(AOwner: TComponent); override; | ||
published | ||
property BarColor: TColor read FBarColor write SetBarColor; | ||
property Visible; | ||
end; | ||
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procedure Register; | ||
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implementation | ||
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procedure Register; | ||
begin | ||
RegisterComponents('BGRA Controls', [TBCMaterialProgressBarMarquee]); | ||
end; | ||
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{ TBCMaterialProgressBarMarquee } | ||
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procedure TBCMaterialProgressBarMarquee.TimerOnTimer(Sender: TObject); | ||
begin | ||
if progressbar_increase then | ||
begin | ||
progressbar_w := progressbar_w + progressbar_cw; | ||
if (progressbar_w >= Width - 5) then | ||
begin | ||
progressbar_increase := False; | ||
end; | ||
end | ||
else | ||
begin | ||
progressbar_w := progressbar_w - progressbar_cw; | ||
if (progressbar_w <= progressbar_cw) then | ||
begin | ||
progressbar_increase := True; | ||
end; | ||
end; | ||
progressbar_x := progressbar_x + progressbasr_cx; | ||
if (progressbar_x >= Width) then | ||
progressbar_x := -progressbar_w; | ||
DiscardBitmap; | ||
end; | ||
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procedure TBCMaterialProgressBarMarquee.SetBarColor(AValue: TColor); | ||
begin | ||
if FBarColor = AValue then | ||
Exit; | ||
FBarColor := AValue; | ||
DiscardBitmap; | ||
end; | ||
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procedure TBCMaterialProgressBarMarquee.DiscardBitmap; | ||
begin | ||
inherited DiscardBitmap; | ||
progressbar_cw := Width div 50; | ||
progressbasr_cx := progressbar_cw * 2; | ||
end; | ||
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procedure TBCMaterialProgressBarMarquee.RedrawBitmapContent; | ||
begin | ||
Bitmap.Fill(Color); | ||
Bitmap.Rectangle(Rect(progressbar_x, 0, progressbar_x + progressbar_w, Bitmap.Height), | ||
BarColor, BarColor); | ||
end; | ||
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constructor TBCMaterialProgressBarMarquee.Create(AOwner: TComponent); | ||
begin | ||
inherited Create(AOwner); | ||
progressbar_w := Width; | ||
progressbar_x := -progressbar_w; | ||
progressbar_increase := False; | ||
FTimer := TTimer.Create(Self); | ||
FTimer.Interval := 15; | ||
FTimer.OnTimer := TimerOnTimer; | ||
FTimer.Enabled := True; | ||
Color := clWhite; | ||
BarColor := $00E2A366; | ||
end; | ||
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end. |
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