Unit1.pas
上传用户:daoqigc
上传日期:2021-04-20
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文件大小:3k
- unit Unit1;
- {==============================================================================}
- { This demo shows how to add pictures and horizontal lines into RichView. }
- { }
- { This demo also shows how to use background image. }
- { RichView1.BackgroundBitmap is assigned to some image, and }
- { RichView1.BackgroundStyle is set to bsTiled }
- {==============================================================================}
- interface
- uses
- Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
- RVScroll, RichView, RVStyle, ExtCtrls, StdCtrls;
- type
- TForm1 = class(TForm)
- RVStyle1: TRVStyle;
- RichView1: TRichView;
- Image1: TImage;
- Label1: TLabel;
- Label2: TLabel;
- procedure FormCreate(Sender: TObject);
- private
- { Private declarations }
- public
- { Public declarations }
- end;
- var
- Form1: TForm1;
- implementation
- {$R *.DFM}
- procedure TForm1.FormCreate(Sender: TObject);
- var ico: TIcon;
- bmp: TBitmap;
- begin
- RichView1.Clear;
- RichView1.AddNL('Example of adding images', 1, 1);
- // Adding "break" - horizontal line
- RichView1.AddBreak;
- RichView1.AddNL('Adding icon:', 0, 0);
- // RichView frees inserted graphics when needed.
- // So RichView1.AddPictureEx('', Image1.Picture.Graphic, -1, rvvaBaseline)
- // will cause error. So we need to create copy of graphics.
- ico := TIcon.Create;
- ico.Assign(Image1.Picture.Graphic);
- RichView1.AddPictureEx('', ico, -1, rvvaBaseline);
- RichView1.AddNL('Adding bitmap:', 0, 0);
- // Adding bitmap from file:
- bmp := TBitmap.Create;
- bmp.LoadFromFile(ExtractFilePath(Application.ExeName)+'bars.bmp');
- RichView1.AddPictureEx('', bmp, -1, rvvaMiddle);
- RichView1.AddBreak;
- RichView1.Format;
- // About AddPictureEx:
- // 1st parameter: name of picture. Allows to store additional text information
- // together with image. There is no predefined meaning of this
- // parameter. May be in future this string will be shown as a hint.
- // 2nd parameter: image. TBitmap, TIcon, TMetafile, etc.
- // 3rd parameter: index of paragraph style (-1 to continue paragraph)
- // 4th parameter: vertical align of image.
- // In current version RichView understands two options:
- // - rvvaBaseline: align bottom of image to base line of text;
- // - rvvaMiddle: align middle of image to base line of text;
- end;
- end.