unit TRM_ImageLabel;
(*
TRM_ImageLabel erstellt von Mathias Fiege 2024
www.nogad.de
Open Source License
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software component and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation the
rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
Thanks and greetings to www.delphipraxis.net
*)
interface
uses
System.SysUtils, System.Classes, System.Types,
Vcl.Controls,
Vcl.ExtCtrls,
Vcl.Forms,
Vcl.StdCtrls,
Vcl.Imaging.GIFConsts,
Vcl.Imaging.GIFImg,
Vcl.Imaging.JConsts,
Vcl.Imaging.jpeg,
Vcl.Imaging.pngimage,
Vcl.Imaging.pnglang,
Vcl.Graphics;
const
_version = '
2024.05.16.0913';
type
TSubPosition = (lpNone, lpTop, lpBottom, lpLeft, lpRight, lpClient, lpCustom);
TTRM_ImageLabel =
class(TCustomPanel)
private
FSubImage: TImage;
FImagePosition: TSubPosition;
FImagePicture: TPicture;
FSubLabel: TLabel;
FLabelCaption:
String;
FLabelPosition: TSubPosition;
FVersion:
String;
procedure SetImagePosition(
const Value: TSubPosition);
procedure PictureChanged(Sender: TObject);
procedure SetPicture(Value: TPicture);
procedure SetLabelCaption(
const Value:
String);
procedure SetLabelPosition(
const Value: TSubPosition);
procedure ImageClick(Sender: TObject);
procedure ImageDblClick(Sender: TObject);
procedure ImageMouseEnter(Sender: TObject);
procedure ImageMouseLeave(Sender: TObject);
procedure LabelClick(Sender: TObject);
procedure LabelDblClick(Sender: TObject);
procedure LabelMouseEnter(Sender: TObject);
procedure LabelMouseLeave(Sender: TObject);
protected
public
constructor Create(AOwner: TComponent);
override;
destructor Destroy;
override;
procedure Resize;
override;
published
property SubImage: TImage
read FSubImage;
property SubLabel: TLabel
read FSubLabel;
property Align;
property Anchors;
property BevelInner;
property BevelKind;
property BevelOuter;
property BevelWidth;
property BorderStyle;
property BorderWidth;
property Caption;
property Ctl3D;
property Cursor;
property ParentBackground;
property PopupMenu;
property OnClick;
property OnDblClick;
property OnMouseEnter;
property OnMouseLeave;
property ImagePosition: TSubPosition
read FImagePosition
write SetImagePosition;
property ImagePicture: TPicture
read FImagePicture
write SetPicture;
property LabelCaption:
String read FLabelCaption
write SetLabelCaption;
property LabelPosition: TSubPosition
read FLabelPosition
write SetLabelPosition;
property Version:
String read FVersion;
end;
procedure Register;
implementation
procedure Register;
begin
RegisterComponents('
TRM', [TTRM_ImageLabel]);
end;
{ TTRM_ImageLabel }
constructor TTRM_ImageLabel.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
Self.Parent := TWinControl(AOwner);
FSubImage := TImage.Create(Self);
FSubImage.SetSubComponent(True);
FSubImage.Parent := Self;
FSubImage.Align := alClient;
FSubImage.Center := True;
FSubImage.OnClick := ImageClick;
FSubImage.OnDblClick := ImageDblClick;
FSubImage.OnMouseEnter := ImageMouseEnter;
FSubImage.OnMouseLeave := ImageMouseLeave;
FSubLabel := TLabel.Create(Self);
FSubLabel.SetSubComponent(True);
FSubLabel.Parent := Self;
FSubLabel.Align := alBottom;
FSubLabel.AutoSize := True;
FSubLabel.Height := 25;
FSubLabel.AlignWithMargins := False;
FSubLabel.Margins.Left := 0;
FSubLabel.Margins.Right := 0;
FSubLabel.Margins.Top := 8;
FSubLabel.Margins.Bottom := 0;
FSubLabel.Caption := '
...';
FSubLabel.Font.Size := 14;
FSubLabel.OnClick := LabelClick;
FSubLabel.OnDblClick := LabelDblClick;
FSubLabel.OnMouseEnter := LabelMouseEnter;
FSubLabel.OnMouseLeave := LabelMouseLeave;
FImagePicture := TPicture.Create;
FImagePicture.OnChange := PictureChanged;
Self.Width := 64;
Self.Height := 89;
Self.AlignWithMargins := True;
Self.Margins.Top := 0;
Self.Margins.Left := 8;
Self.Margins.Right := 8;
Self.Margins.Bottom := 0;
Self.BevelInner := bvNone;
Self.BevelKind := bkNone;
Self.BevelOuter := bvNone;
Self.BevelWidth := 1;
Self.BorderStyle := bsNone;
Self.BorderWidth := 0;
Self.Caption := '
';
Self.Ctl3D := False;
Self.Cursor := crHandPoint;
Self.ParentBackground := True;
FVersion := _version;
FImagePosition := lpClient;
FLabelPosition := lpBottom;
Update;
Resize;
end;
procedure TTRM_ImageLabel.Resize;
begin
(* lpNone, lpTop, lpBottom, lpLeft, lpRight, lpClient, lpCustom *)
inherited;
case FLabelPosition
of
lpNone:
begin
FSubLabel.Align := alNone;
end;
lpTop:
begin
FSubLabel.Align := alTop;
end;
lpBottom:
begin
FSubLabel.Align := alBottom;
end;
lpLeft:
begin
FSubLabel.Align := alLeft;
end;
lpRight:
begin
FSubLabel.Align := alRight;
end;
lpClient:
begin
FSubLabel.Align := alClient;
end;
lpCustom:
begin
FSubLabel.Align := alCustom;
end;
end;
case FImagePosition
of
lpNone:
begin
FSubImage.Align := alNone;
end;
lpTop:
begin
FSubImage.Align := alTop;
end;
lpBottom:
begin
FSubImage.Align := alBottom;
end;
lpLeft:
begin
FSubImage.Align := alLeft;
end;
lpRight:
begin
FSubImage.Align := alRight;
end;
lpClient:
begin
FSubImage.Align := alClient;
end;
lpCustom:
begin
FSubImage.Align := alCustom;
end;
end;
FSubLabel.Caption := FLabelCaption;
Update;
end;
procedure TTRM_ImageLabel.SetImagePosition(
const Value: TSubPosition);
begin
if FImagePosition <> Value
then
begin
FImagePosition := Value;
Resize;
end;
end;
procedure TTRM_ImageLabel.SetPicture(Value: TPicture);
begin
FImagePicture.Assign(Value);
FSubImage.Picture.Assign(FImagePicture);
end;
procedure TTRM_ImageLabel.PictureChanged(Sender: TObject);
begin
Repaint;
end;
procedure TTRM_ImageLabel.SetLabelCaption(
const Value:
string);
begin
if FLabelCaption <> Value
then
begin
FLabelCaption := Value;
Resize;
end;
end;
procedure TTRM_ImageLabel.SetLabelPosition(
const Value: TSubPosition);
begin
if FLabelPosition <> Value
then
begin
FLabelPosition := Value;
Resize;
end;
end;
procedure TTRM_ImageLabel.ImageClick(Sender: TObject);
begin
if Assigned(OnClick)
then
OnClick(Self);
end;
procedure TTRM_ImageLabel.ImageDblClick(Sender: TObject);
begin
if Assigned(OnDblClick)
then
OnDblClick(Self);
end;
procedure TTRM_ImageLabel.ImageMouseEnter(Sender: TObject);
begin
if Assigned(OnMouseEnter)
then
OnMouseEnter(Self);
end;
procedure TTRM_ImageLabel.ImageMouseLeave(Sender: TObject);
begin
if Assigned(OnMouseLeave)
then
OnMouseLeave(Self);
end;
procedure TTRM_ImageLabel.LabelClick(Sender: TObject);
begin
if Assigned(OnClick)
then
OnClick(Self);
end;
procedure TTRM_ImageLabel.LabelDblClick(Sender: TObject);
begin
if Assigned(OnDblClick)
then
OnDblClick(Self);
end;
procedure TTRM_ImageLabel.LabelMouseEnter(Sender: TObject);
begin
if Assigned(OnMouseEnter)
then
OnMouseEnter(Self);
end;
procedure TTRM_ImageLabel.LabelMouseLeave(Sender: TObject);
begin
if Assigned(OnMouseLeave)
then
OnMouseLeave(Self);
end;
destructor TTRM_ImageLabel.Destroy;
begin
FSubImage.Free;
FSubLabel.Free;
FImagePicture.Free;
inherited Destroy;
end;
end.