97 lines
1.9 KiB
ObjectPascal
97 lines
1.9 KiB
ObjectPascal
unit Frame.MapPreview;
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interface
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uses
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System.Classes,
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Vcl.Controls,
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Vcl.Dialogs,
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Vcl.ExtCtrls,
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Vcl.Forms,
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Vcl.Imaging.jpeg,
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X2CLGraphicList;
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type
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TMapPreviewFrame = class(TFrame)
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shpBorder: TShape;
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imgMapPreview: TImage;
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gcMapPreview: TX2GraphicContainer;
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gcMapPreviewUnknownMap: TX2GraphicContainerItem;
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public
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constructor Create(AOwner: TComponent); override;
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procedure Clear;
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procedure Load(const APreviewName: string);
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end;
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implementation
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uses
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System.SysUtils,
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Vcl.Graphics,
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Resources;
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{$R *.dfm}
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{ TMapPreviewFrame }
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constructor TMapPreviewFrame.Create(AOwner: TComponent);
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begin
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inherited Create(AOwner);
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{ Having the components not aligned at design-time makes it easier to drag the frame around }
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shpBorder.Align := alClient;
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imgMapPreview.Align := alClient;
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Clear;
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end;
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procedure TMapPreviewFrame.Clear;
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begin
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imgMapPreview.Picture.Assign(gcMapPreviewUnknownMap.Picture);
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end;
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procedure TMapPreviewFrame.Load(const APreviewName: string);
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var
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preview: TPicture;
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fileName: string;
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previewItem: TX2GraphicContainerItem;
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begin
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preview := nil;
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if Length(APreviewName) > 0 then
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begin
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preview := gcMapPreview.PictureByName(APreviewName);
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if not Assigned(preview) then
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begin
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previewItem := TX2GraphicContainerItem.Create(Self);
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previewItem.Container := gcMapPreview;
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previewItem.PictureName := APreviewName;
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preview := previewItem.Picture;
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fileName := GetAssetPath(AssetMapPreviewPath + APreviewName + AssetMapPreviewExtension);
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if FileExists(fileName) then
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begin
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try
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preview.LoadFromFile(fileName);
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except
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preview.Assign(nil);
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end;
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end;
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end;
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end;
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if Assigned(preview) and Assigned(preview.Graphic) then
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imgMapPreview.Picture.Assign(preview)
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else
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Clear;
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end;
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end.
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