delphi - 模拟网页反馈按钮

Question

我喜欢在模拟网页中的可能主（MDIParent）表单上放置一个反馈按钮。

当鼠标经过它时喜欢它生长。就像网络一样。带有问题的表格和数据的发送，我真的不需要它，只是视觉的东西。

有没有这样的组件？我不认为这很难做到，但如果它已经存在，它会和我一样一段时间。

谢谢

Answer 1

要制作动画幻灯片面板，您可以使用如下代码：

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ExtCtrls;

type
  TForm1 = class(TForm)
    procedure FormCreate(Sender: TObject);
  private
    FFeedbackBtn: TPanel;
    FFeedbackPanel: TPanel;
    procedure OnFeedbackBtnMouseEnter(Sender: TObject);
    procedure OnFeedbackPanelMouseLeave(Sender: TObject);
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
  FFeedbackBtn := TPanel.Create(Self);
  FFeedbackBtn.Parent := Self;
  FFeedbackBtn.Anchors := [akLeft, akTop, akBottom];
  FFeedbackBtn.Caption := '';
  FFeedbackBtn.SetBounds(0, 0, 40, ClientHeight);
  FFeedbackBtn.OnMouseEnter := OnFeedbackBtnMouseEnter;

  FFeedbackPanel := TPanel.Create(Self);
  FFeedbackPanel.Parent := Self;
  FFeedbackPanel.Anchors := [akLeft, akTop, akBottom];
  FFeedbackPanel.Caption := 'Feedback panel';
  FFeedbackPanel.Visible := False;
  FFeedbackPanel.SetBounds(0, 0, 250, ClientHeight);
  FFeedbackPanel.OnMouseLeave := OnFeedbackPanelMouseLeave;
end;

procedure TForm1.OnFeedbackBtnMouseEnter(Sender: TObject);
begin
  AnimateWindow(FFeedbackPanel.Handle, 150, AW_ACTIVATE or AW_SLIDE or
    AW_HOR_POSITIVE);
end;

procedure TForm1.OnFeedbackPanelMouseLeave(Sender: TObject);
begin
  AnimateWindow(FFeedbackPanel.Handle, 150, AW_HIDE or AW_SLIDE or
    AW_HOR_NEGATIVE);
end;

end.

更新：

这是上面的另一个版本，现在像典型的反馈按钮一样具有垂直文本，呈现在按钮面板上拉伸的油漆框上：

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ExtCtrls;

type
  TForm1 = class(TForm)
    procedure FormCreate(Sender: TObject);
  private
    FFeedbackBtn: TPanel;
    FFeedbackBtnOverlay: TPaintBox;
    FFeedbackPanel: TPanel;
    procedure OnFeedbackBtnMouseEnter(Sender: TObject);
    procedure OnFeedbackPanelMouseLeave(Sender: TObject);
    procedure OnFeedbackBtnOverlayPaint(Sender: TObject);
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
  FFeedbackBtn := TPanel.Create(Self);
  FFeedbackBtn.Parent := Self;
  FFeedbackBtn.Anchors := [akLeft, akTop, akBottom];
  FFeedbackBtn.Caption := '';
  FFeedbackBtn.Color := $0000B3FF;
  FFeedbackBtn.ParentBackground := False;
  FFeedbackBtn.SetBounds(0, 0, 40, ClientHeight);

  FFeedbackBtnOverlay := TPaintBox.Create(Self);
  FFeedbackBtnOverlay.Parent := FFeedbackBtn;
  FFeedbackBtnOverlay.Align := alClient;
  FFeedbackBtnOverlay.OnPaint := OnFeedbackBtnOverlayPaint;
  FFeedbackBtnOverlay.OnMouseEnter := OnFeedbackBtnMouseEnter;

  FFeedbackPanel := TPanel.Create(Self);
  FFeedbackPanel.Parent := Self;
  FFeedbackPanel.Anchors := [akLeft, akTop, akBottom];
  FFeedbackPanel.Caption := 'Feedback panel';
  FFeedbackPanel.Color := $0000F9FF;
  FFeedbackPanel.ParentBackground := False;
  FFeedbackPanel.Visible := False;
  FFeedbackPanel.SetBounds(0, 0, 250, ClientHeight);
  FFeedbackPanel.OnMouseLeave := OnFeedbackPanelMouseLeave;
end;

procedure TForm1.OnFeedbackBtnMouseEnter(Sender: TObject);
begin
  AnimateWindow(FFeedbackPanel.Handle, 150, AW_ACTIVATE or AW_SLIDE or
    AW_HOR_POSITIVE);
end;

procedure TForm1.OnFeedbackPanelMouseLeave(Sender: TObject);
begin
  AnimateWindow(FFeedbackPanel.Handle, 150, AW_HIDE or AW_SLIDE or
    AW_HOR_NEGATIVE);
end;

procedure TForm1.OnFeedbackBtnOverlayPaint(Sender: TObject);
var
  S: string;
  X, Y: Integer;
begin
  S := 'Feedback...';
  with FFeedbackBtnOverlay do
  begin
    Canvas.Brush.Color := $0000B3FF;
    Canvas.FillRect(ClientRect);
    Canvas.Font.Orientation := 900;
    X := (ClientWidth - Canvas.TextHeight(S)) div 2;
    Y := ClientHeight - (ClientHeight - Canvas.TextWidth(S)) div 2;
    Canvas.TextOut(X, Y, S);
  end;
end;

end.

结果：

您还应该实现一些逻辑以防止用户在实际填写字段时隐藏反馈面板，但这是此类反馈表单的自然弱点。