在Delphi7中,使窗体可调整大小的最佳免费方式是什么?
我需要在Delphi中调整表单的大小,所有组件和控件都应该按比例拉伸,以及字体大小等。现在为了调整组件的大小,我在“OnResize”事件中编写了一个代码,并手动计算所有组件的大小和字体。我希望有更简单的解决方案,我可以应用于不同的应用程序,而无需为每个表单重写此代码。我在网上找到了一些组件,但它们是共享软件。您可以提出一些建议吗?您可以在每个控件上使用Anchor属性。这允许您将控件的侧面“锚定”到窗体的特定侧面在Delphi7中,使窗体可调整大小的最佳免费方式是什么?,delphi,controls,resize,components,stretch,Delphi,Controls,Resize,Components,Stretch,我需要在Delphi中调整表单的大小,所有组件和控件都应该按比例拉伸,以及字体大小等。现在为了调整组件的大小,我在“OnResize”事件中编写了一个代码,并手动计算所有组件的大小和字体。我希望有更简单的解决方案,我可以应用于不同的应用程序,而无需为每个表单重写此代码。我在网上找到了一些组件,但它们是共享软件。您可以提出一些建议吗?您可以在每个控件上使用Anchor属性。这允许您将控件的侧面“锚定”到窗体的特定侧面 例如,如果希望TMemo在调整表单大小时填充表单的中间部分,请将锚定属性设置为[
例如,如果希望TMemo在调整表单大小时填充表单的中间部分,请将
锚定
属性设置为[akLeft、akTop、akRight、akBottom]
。或者,如果您希望在调整表单大小时在表单底部显示一个按钮,请将锚定属性设置为[akLeft,akBottom]
如果您对OnResize事件中使用的代码感到满意,则创建包含此代码的自定义组件可能是值得的。这将简化这些组件的未来使用。您可以使用我的“TArtPercentageWireGrid”组件。我已经用了很多年了。将其放到窗体上,将任何组件放置在您喜欢的位置,然后在更改窗体大小时,组件的轮廓将按比例调整大小。
布莱恩
unit-id;
接口
使用
窗户,
信息,
SysUtils,
班级,
绘图,
控制,
形式,
对话;
类型
浮动=双倍;
TFloatPoint=记录X,Y:浮点结束;
TFloatRect=记录
大小写整数
0:(左、上、右、下:浮动);
1:(左上、右下:TFloatPoint);
结束;
TARTSimpleWireGrid=类(TGraphic控件)
私有的
{私有声明}
FGridSpacing:整数;
FPen:TPen;
FBrush:TBrush;
过程SetGridSpacing(AValue:integer);
程序挫折(AValue:TBrush);
程序设置笔(AValue:TPen);
受保护的
{受保护的声明}
程序漆;推翻
公众的
{公开声明}
构造函数创建(AOwner:TComponent);推翻
毁灭者毁灭;推翻
出版
{已发布声明}
属性对齐;
属性刷:TBrush读FBrush写SBRUSH;
属性笔:TPen read FPen write SetPen;
属性GridSpacing:整数读取FGridSpacing写入SetGridSpacing;
程序样式已更改(发送方:ToObject);
有形财产;
结束;
TGridStyle=(gsline,gsPoints);
TARTPercentageWireGrid=class(TGraphic控件)
私有的
{私有声明}
投掷:双倍;
FPen:TPen;
FBrush:TBrush;
FGridVisible:布尔;
FGridStyle:TGridStyle;
程序设置行间距(AValue:double);
程序挫折(AValue:TBrush);
程序设置笔(AValue:TPen);
函数GetLineSpacingPixelX:integer;
函数GetLineSpacingPixelY:整数;
过程SetGridVisible(AState:布尔值);
程序SetGridStyle(AValue:TGridStyle);
函数RoundToGrid(AValue:float):float;
受保护的
{受保护的声明}
程序漆;推翻
公众的
{公开声明}
构造函数创建(AOwner:TComponent);推翻
毁灭者毁灭;推翻
程序绘图点画布(ACanvas:TCanvas);
函数GridXToPixel(const AGridX:float):整数;
函数GridYToPixel(const AGridY:float):整数;
函数GridPointToPixel(const APoint:TFloatPoint):TPoint;
函数GridRectToPixel(const-ARect:TFloatRect):TRect;
函数PixelXToGrid(AValue:integer):float;
函数像素网格(AValue:integer):浮点;
函数PixelPointToGrid(const APoint:TPoint):TFloatPoint;
功能像素网格(const-ARect:TRect):TFloatRect;
函数GridAlignPixelX(AValue:integer):整数;
函数GridAlignPixelY(AValue:integer):整数;
函数GridAlignPixelPoint(常量点:TPoint):TPoint;
函数GridAlignPixelRect(const-ARect:TRect):TRect;
函数MoveGridRect(const-ARect:TFloatRect;
const ADeltaX,ADeltaY:float):TFloatRect;
函数ScaleGridRect(常量:TFloatRect;
常量AScale:float):TFloatRect;
函数GridLineXToPixel(AValue:integer):整数;
函数GridLineYToPixel(AValue:integer):整数;
函数GridLinePointToPixel(const APoint:TPoint):TPoint;
函数GridLineRectToPixel(const-ARect:TRect):TRect;
函数PixelXToGridLine(AValue:integer):整数;
函数像素网格线(AValue:integer):整数;
函数PixelPointToGridLine(const APoint:TPoint):TPoint;
功能像素直射线(const-ARect:TRect):TRect;
出版
{已发布声明}
属性对齐;
属性刷:TBrush读FBrush写SBRUSH;
属性笔:TPen read FPen write SetPen;
属性行间距:双读flinspacing写setlinespace;
属性LineSpacingPixelX:整数读取GetLineSpacingPixelX;
属性LineSpacingPixelY:整数读取GetLineSpacingPixelY;
程序样式已更改(发送方:ToObject);
有形财产;
属性GridVisible:boolean read FGridVisible write SetGridVisible;
属性GridStyle:TGridStyle读取FGridStyle写入SetGridSTyle;
结束;
实施
{tartsimplewireglid}
{ ---------------------------------------------------------------------------- }
构造函数TARTSimpleWireGrid.Create(AOwner:TComponent);
开始
继承的创建(AOOwner);
FPen:=TPen.Create;
FPen.OnChange:=stylechange;
拉什
unit UArtWireGrids;
interface
uses
Windows,
Messages,
SysUtils,
Classes,
Graphics,
Controls,
Forms,
Dialogs;
type
float = double;
TFloatPoint = record X, Y : float end;
TFloatRect = record
case Integer of
0: (Left, Top, Right, Bottom: float);
1: (TopLeft, BottomRight: TFloatPoint);
end;
TARTSimpleWireGrid = class(TGraphicControl)
private
{ Private declarations }
FGridSpacing : integer;
FPen : TPen;
FBrush : TBrush;
procedure SetGridSpacing( AValue : integer );
procedure SetBrush( AValue : TBrush );
procedure SetPen( AValue : TPen );
protected
{ Protected declarations }
procedure Paint; override;
public
{ Public declarations }
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
published
{ Published declarations }
property Align;
property Brush : TBrush read FBrush write SetBrush;
property Pen : TPen read FPen write SetPen;
property GridSpacing : integer read FGridSpacing write SetGridSpacing;
procedure StyleChanged(Sender : TObject);
property Visible;
end;
TGridStyle = ( gsLines, gsPoints );
TARTPercentageWireGrid = class(TGraphicControl)
private
{ Private declarations }
FLineSpacing : double;
FPen : TPen;
FBrush : TBrush;
FGridVisible : boolean;
FGridStyle : TGridStyle;
procedure SetLineSpacing( AValue : double );
procedure SetBrush( AValue : TBrush );
procedure SetPen( AValue : TPen );
function GetLineSpacingPixelX : integer;
function GetLineSpacingPixelY : integer;
procedure SetGridVisible( AState : boolean );
procedure SetGridStyle( AValue : TGridStyle );
function RoundToGrid( AValue : float ) : float;
protected
{ Protected declarations }
procedure Paint; override;
public
{ Public declarations }
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
procedure DrawPointsOnCanvas( ACanvas : TCanvas );
function GridXToPixel( const AGridX : float ) : integer;
function GridYToPixel( const AGridY : float ) : integer;
function GridPointToPixel( const APoint : TFloatPoint ) : TPoint;
function GridRectToPixel( const ARect : TFloatRect ) : TRect;
function PixelXToGrid( AValue : integer ) : float;
function PixelYToGrid( AValue : integer ) : float;
function PixelPointToGrid( const APoint : TPoint ) : TFloatPoint;
function PixelRectToGrid( const ARect : TRect ) : TFloatRect;
function GridAlignPixelX( AValue : integer ) : integer;
function GridAlignPixelY( AValue : integer ) : integer;
function GridAlignPixelPoint( const APoint : TPoint ) : TPoint;
function GridAlignPixelRect( const ARect : TRect ) : TRect;
function MoveGridRect( const ARect : TFloatRect;
const ADeltaX, ADeltaY : float ) : TFloatRect;
function ScaleGridRect( const ARect : TFloatRect;
const AScale : float ) : TFloatRect;
function GridLineXToPixel( AValue : integer ) : integer;
function GridLineYToPixel( AValue : integer ) : integer;
function GridLinePointToPixel( const APoint : TPoint ) : TPoint;
function GridLineRectToPixel( const ARect : TRect ) : TRect;
function PixelXToGridLine( AValue : integer ) : integer;
function PixelYToGridLine( AValue : integer ) : integer;
function PixelPointToGridLine( const APoint : TPoint ) : TPoint;
function PixelRectToGridLine( const ARect : TRect ) : TRect;
published
{ Published declarations }
property Align;
property Brush : TBrush read FBrush write SetBrush;
property Pen : TPen read FPen write SetPen;
property LineSpacing : double read FLineSpacing write SetLineSpacing;
property LineSpacingPixelX : integer read GetLineSpacingPixelX;
property LineSpacingPixelY : integer read GetLineSpacingPixelY;
procedure StyleChanged(Sender : TObject);
property Visible;
property GridVisible : boolean read FGridVisible write SetGridVisible;
property GridStyle : TGridStyle read FGridStyle write SetGridSTyle;
end;
implementation
{TARTSimpleWireGrid}
{ ---------------------------------------------------------------------------- }
constructor TARTSimpleWireGrid.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
FPen := TPen.Create;
FPen.OnChange := StyleChanged;
FBrush := TBrush.Create;
FBrush.OnChange := StyleChanged;
GridSpacing := 20;
Height := 100;
Width := 100;
end;
destructor TARTSimpleWireGrid.Destroy;
begin
FPen.Free;
FBrush.Free;
Inherited Destroy;
end;
procedure TARTSimplewireGrid.SetGridSpacing( AValue : integer );
begin
If AValue <> FGridSpacing then
begin
FGridSpacing := AValue;
Invalidate;
end;
end;
procedure TARTsimpleWireGrid.Paint;
var
I : integer;
begin
Inherited Paint;
If FGridspacing < 20 then
GridSpacing := 20;
Canvas.Brush.Assign( FBrush );
Canvas.Pen.Assign( FPen );
// Vertical bars
I := 0;
While I < ClientWidth do
begin
Canvas.MoveTo( I,0 );
Canvas.LineTo( I,ClientHeight);
Inc(I,FGridSpacing);
end;
// Horiz bars
I := 0;
While I < ClientHeight do
begin
Canvas.MoveTo( 0,I );
Canvas.LineTo( ClientWidth,I);
Inc(I,FGridSpacing);
end;
end;
procedure TARTSimplewireGrid.SetBrush( AValue : TBrush );
begin
FBrush.Assign( AValue );
end;
procedure TARTSimplewireGrid.SetPen( AValue : TPen );
begin
FPen.Assign( AValue );
end;
procedure TARTSimplewireGrid.StyleChanged(Sender : TObject);
begin
Invalidate;
end;
//End TARTSimpleWireGrid
end.
{TARTPercentageWireGrid}
{ ---------------------------------------------------------------------------- }
constructor TARTPercentageWireGrid.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
If AOwner is TForm then
begin
OnMouseDown := Tform(AOwner).OnMouseDown;
OnMouseUp := Tform(AOwner).OnMouseUp;
OnMouseMove := Tform(AOwner).OnMouseMove;
end;
FPen := TPen.Create;
FPen.OnChange := StyleChanged;
FBrush := TBrush.Create;
FBrush.OnChange := StyleChanged;
FGridVisible := True;
LineSpacing := 10;
Height := 100;
Width := 100;
end;
destructor TARTPercentageWireGrid.Destroy;
begin
FPen.Free;
FBrush.Free;
Inherited Destroy;
end;
procedure TARTPercentagewireGrid.SetLineSpacing( AValue : double );
begin
If AValue <> FLineSpacing then
begin
FLineSpacing := AValue;
If FLineSpacing < 1.0 then
FLineSpacing := 1.0;
Invalidate;
end;
end;
procedure TARTPercentagewireGrid.DrawPointsOnCanvas( ACanvas : TCanvas );
var
X, Y : integer;
FX, FY : float;
begin
FY := 0.0;
Repeat
FY := FY + FLineSpacing;
FX := 0.0;
Y := GridYToPixel(FY);
Repeat
FX := FX + FLineSpacing;
X := GridXToPixel(FX);
ACanvas.Pixels[ X, Y ] := clBlack;
until FX >= 100;
until FY >= 100;
end;
procedure TARTPercentageWireGrid.Paint;
procedure DrawLines;
procedure LinesVert;
var
X : integer;
F : double;
begin
F := 0.0;
Repeat
F := F + FLineSpacing;
X := GridXToPixel(F);
Canvas.MoveTo( X, 0 );
Canvas.LineTo( X, Height );
until X >= ClientWidth;
end;
procedure LinesHorz;
var
F : double;
Y : integer;
begin
F := 0.0;
Repeat
F := F + FLineSpacing;
Y := GridYToPixel(F);
Canvas.MoveTo( 0, Y );
Canvas.LineTo( Width, Y );
until Y >= ClientHeight;
end;
begin
LinesVert;
LinesHorz;
end;
begin
Inherited Paint;
If FGridVisible then
begin
Canvas.Brush.Assign( FBrush );
Canvas.Pen.Assign( FPen );
Case FGridStyle of
gsLines : DrawLines;
gsPoints : DrawPointsOnCanvas( Canvas );
end;
end;
end;
procedure TARTPercentagewireGrid.SetBrush( AValue : TBrush );
begin
FBrush.Assign( AValue );
end;
procedure TARTPercentagewireGrid.SetPen( AValue : TPen );
begin
FPen.Assign( AValue );
end;
procedure TARTPercentagewireGrid.StyleChanged(Sender : TObject);
begin
Invalidate;
end;
function TARTPercentageWireGrid.GridXToPixel( const AGridX : float ) : integer;
begin
Result := Round(AGridX * Width / 100);
end;
function TARTPercentageWireGrid.GridYToPixel( const AGridY : float ) : integer;
begin
Result := Round(AGridY * Height / 100);
end;
function TARTPercentageWireGrid.GetLineSpacingPixelX : integer;
begin
Result := GridXToPixel( FLineSpacing );
end;
function TARTPercentageWireGrid.GetLineSpacingPixelY : integer;
begin
Result := GridYToPixel( FLineSpacing );
end;
function TARTPercentageWireGrid.GridPointToPixel( const APoint : TFloatPoint ) : TPoint;
begin
Result.X := GridXToPixel( APoint.X );
Result.Y := GridYToPixel( APoint.Y );
end;
function TARTPercentageWireGrid.GridRectToPixel( const ARect : TFloatRect ) : TRect;
begin
Result.TopLeft := GridPointToPixel( ARect.TopLeft );
Result.BottomRight := GridPointToPixel( ARect.BottomRight );
end;
function TARTPercentageWireGrid.PixelXToGrid( AValue : integer ) : float;
begin
Result := (Trunc(AValue) * 100) / Width;
end;
function TARTPercentageWireGrid.PixelYToGrid( AValue : integer ) : float;
begin
Result := (Trunc(AValue) * 100) / Height;
end;
function TARTPercentageWireGrid.PixelPointToGrid( const APoint : TPoint ) : TFloatPoint;
begin
Result.X := PixelXToGrid( APoint.X );
Result.Y := PixelYToGrid( APoint.Y );
end;
function TARTPercentageWireGrid.PixelRectToGrid( const ARect : TRect ) : TFloatRect;
begin
Result.TopLeft := PixelPointToGrid( ARect.TopLeft );
Result.BottomRight := PixelPointToGrid( ARect.BottomRight );
end;
function TARTPercentageWireGrid.RoundToGrid( AValue : float ) : float;
begin
Result := LineSpacing * Round( AValue / LineSpacing );
end;
function TARTPercentageWireGrid.GridAlignPixelX( AValue : integer ) : integer;
begin
Result := GridXToPixel( RoundToGrid( PixelXToGrid( AValue )));
end;
function TARTPercentageWireGrid.GridAlignPixelY( AValue : integer ) : integer;
begin
Result := GridYToPixel( RoundToGrid( PixelYToGrid( AValue )));
end;
function TARTPercentageWireGrid.GridAlignPixelPoint( const APoint : TPoint ) : TPoint;
begin
Result.X := GridAlignPixelX( APoint.X );
Result.Y := GridAlignPixelY( APoint.Y );
end;
function TARTPercentageWireGrid.GridAlignPixelRect( const ARect : TRect ) : TRect;
begin
Result.TopLeft := GridAlignPixelPoint( ARect.TopLeft );
Result.BottomRight := GridAlignPixelPoint( ARect.BottomRight );
// Its possible that aligning may have collapsed a width or height to
// zero. If so, make it at least 1 unit in size
If Result.Top = Result.Bottom then
Result.Bottom := Result.Top + LineSpacingPixelY;
If Result.Left = Result.Right then
Result.Right := Result.Left + LineSpacingPixelX;
end;
procedure TARTPercentageWireGrid.SetGridVisible( AState : boolean );
begin
If AState <> FGridVisible then
begin
FGridVisible := AState;
Invalidate;
end;
end;
function TARTPercentageWireGrid.MoveGridRect( const ARect : TFloatRect;
const ADeltaX, ADeltaY : float ) : TFloatRect;
begin
Result.Left := ARect.Left + ADeltaX;
Result.right := ARect.Right + ADeltaX;
Result.Top := ARect.Top + ADeltaY;
Result.Bottom := ARect.Bottom + ADeltaY;
end;
function TARTPercentageWireGrid.ScaleGridRect( const ARect : TFloatRect;
const AScale : float ) : TFloatRect;
begin
Result.Left := ARect.Left * AScale;
Result.right := ARect.Right * Ascale;
Result.Top := ARect.Top * AScale;
Result.Bottom := ARect.Bottom * AScale;
end;
procedure TARTPercentageWireGrid.SetGridStyle( AValue : TGridStyle );
begin
If AValue <> FGridStyle then
begin
FGridStyle := AValue;
Invalidate;
end;
end;
function TARTPercentageWireGrid.GridLineXToPixel( AValue : integer ) : integer;
begin
Result := GridXToPixel(Trunc(AValue) * LineSpacing);
end;
function TARTPercentageWireGrid.GridLineYToPixel( AValue : integer ) : integer;
begin
Result := GridYToPixel(Trunc(AValue) * LineSpacing);
end;
function TARTPercentageWireGrid.GridLinePointToPixel( const APoint : TPoint ) : TPoint;
begin
Result.X := GridLineXToPixel( APoint.X );
Result.Y := GridLineYToPixel( APoint.Y );
end;
function TARTPercentageWireGrid.GridLineRectToPixel( const ARect : TRect ) : TRect;
begin
Result.TopLeft := GridLinePointToPixel( ARect.TopLeft );
Result.BottomRight := GridLinePointToPixel( ARect.BottomRight );
end;
function TARTPercentageWireGrid.PixelXToGridLine( AValue : integer ) : integer;
begin
Result := Round(PixelXToGrid( AValue ) / FLineSpacing);
end;
function TARTPercentageWireGrid.PixelYToGridLine( AValue : integer ) : integer;
begin
Result := Round(PixelYToGrid( AValue ) / FLineSpacing);
end;
function TARTPercentageWireGrid.PixelPointToGridLine( const APoint : TPoint ) : TPoint;
begin
Result.X := PixelXToGridLine( APoint.X );
Result.Y := PixelYToGridLine( APoint.Y );
end;
function TARTPercentageWireGrid.PixelRectToGridLine( const ARect : TRect ) : TRect;
begin
Result.TopLeft := PixelPointToGridLine( ARect.TopLeft );
Result.BottomRight := PixelPointToGridLine( ARect.BottomRight );
end;
{End TARTPercentageWireGrid}
{ ---------------------------------------------------------------------------- }
procedure TForm1.FormResize(Sender: TObject);
var
I : integer;
begin
//Button1.BoundsRect := ARTPercentageWireGrid1.GridRectToPixel( FBounds[0] );
For I := 0 to ComponentCount-1 do
If Components[I] is TControl then
With Components[I] as TControl do
If Align <> alClient then
BoundsRect := ARTPercentageWireGrid1.GridRectToPixel( FBounds[I] );
end;
procedure TForm1.FormCreate(Sender: TObject);
var
I : integer;
begin
//SetLength( FBounds, 1 );
//FBounds[0] := ARTPercentageWireGrid1.PixelRectToGrid( Button1.BoundsRect );
SetLength( FBounds, ComponentCount );
For I := 0 to ComponentCount-1 do
If Components[I] is TControl then
With Components[I] as TControl do
If Align <> alClient then
FBounds[I] := ARTPercentageWireGrid1.PixelRectToGrid( BoundsRect );
end;
procedure Register;
implementation
procedure Register;
begin
RegisterComponents('ComponentName', [TARTPercentageWireGrid]);
end;