屏幕自动适应问题

Question

主要是窗体控件一旦很多的时候，自适应就比较差了。
如果有像windows一样任何屏幕，任何分辨率都能很好适应的代码就好了。

Answer 1

unit uMyClassHelpers;
{实现窗体自适应调整尺寸以适应不同屏幕分辩率的显示问题。
        陈小斌，2012年3月5日
}interface
Uses
  SysUtils,Windows,Classes,Graphics, Controls,Forms,Dialogs, Math,
  uMySysUtils;Const   //记录设计时的屏幕分辨率
  OriWidth=1366;
  OriHeight=768;Type  TfmForm=Class(TForm)   //实现窗体屏幕分辨率的自动调整
  Private
    fScrResolutionRateW: Double;
    fScrResolutionRateH: Double;
    fIsFitDeviceDone: Boolean;
    procedure FitDeviceResolution;
  Protected
    Property IsFitDeviceDone:Boolean Read fIsFitDeviceDone;
    Property ScrResolutionRateH:Double Read fScrResolutionRateH;
    Property ScrResolutionRateW:Double Read fScrResolutionRateW;
  Public
    Constructor Create(AOwner: TComponent); Override;
  End;  TfdForm=Class(TfmForm)   //增加对话框窗体的修改确认
  Protected
    fIsDlgChange:Boolean;
  Public
  Constructor Create(AOwner: TComponent); Override;
  Property IsDlgChange:Boolean Read fIsDlgChange default false;
 End;implementationconstructor TfmForm.Create(AOwner: TComponent);
begin
 Inherited Create(AOwner);
  fScrResolutionRateH:=1;
  fScrResolutionRateW:=1;
  Try
    if Not fIsFitDeviceDone then
    Begin
      FitDeviceResolution;
   fIsFitDeviceDone:=True;
    End;
  Except
  fIsFitDeviceDone:=False;
  End;
end;procedure TfmForm.FitDeviceResolution;
Var
  LocList:TList;
  LocFontRate:Double;
  LocFontSize:Integer;
  LocFont:TFont;
  locK:Integer;{计算尺度调整的基本参数}
  Procedure CalBasicScalePars;
  Begin
    try
      Self.Scaled:=False;
      fScrResolutionRateH:=screen.height/OriHeight;
      fScrResolutionRateW:=screen.Width/OriWidth;
      LocFontRate:=Min(fScrResolutionRateH,fScrResolutionRateW);
    except
      Raise;
    end;
  End;{保存原有坐标位置：利用递归法遍历各级容器里的控件，直到最后一级}
  Procedure ControlsPostoList(vCtl:TControl;vList:TList);
  Var
    locPRect:^TRect;
    i:Integer;
    locCtl:TControl;
  Begin
    try
      New(locPRect);
      locPRect^:=vCtl.BoundsRect;
      vList.Add(locPRect);
      If vCtl Is TWinControl Then
        For i:=0 to TWinControl(vCtl).ControlCount-1 Do
        begin
          locCtl:=TWinControl(vCtl).Controls[i];
          ControlsPosToList(locCtl,vList);
        end;
    except
      Raise;
    end;
  End;{计算新的坐标位置：利用递归法遍历各级容器里的控件，直到最后一层。
 计算坐标时先计算顶级容器级的，然后逐级递进}
  Procedure AdjustControlsScale(vCtl:TControl;vList:TList;Var vK:Integer);
  Var
    locOriRect,LocNewRect:TRect;
    i:Integer;
    locCtl:TControl;
  Begin
    try
      If vCtl.Align<>alClient Then
      Begin
        locOriRect:=TRect(vList.Items[vK]^);
        With locNewRect Do
        begin
           Left:=Round(locOriRect.Left*fScrResolutionRateW);
           Right:=Round(locOriRect.Right*fScrResolutionRateW);
           Top:=Round(locOriRect.Top*fScrResolutionRateH);
           Bottom:=Round(locOriRect.Bottom*fScrResolutionRateH);
           vCtl.SetBounds(Left,Top,Right-Left,Bottom-Top);
        end;
      End;
      Inc(vK);
      If vCtl Is TWinControl Then
        For i:=0 to TwinControl(vCtl).ControlCount-1 Do
        begin
          locCtl:=TWinControl(vCtl).Controls[i];
          AdjustControlsScale(locCtl,vList,vK);
        end;
    except
      Raise;
    end;
  End;{按照新的比例设计窗体中各组件的字体}
  Procedure AdjustComponentFont(vCmp:TComponent);
  Var
    i:Integer;
    locCmp:TComponent;
  Begin
    try
      For i:=vCmp.ComponentCount-1 Downto 0 Do
      Begin
        locCmp:=vCmp.Components[i];
        If PropertyExists(LocCmp,'FONT') Then
        Begin
          LocFont:=TFont(GetObjectProperty(LocCmp,'FONT'));
          LocFontSize := Round(LocFontRate*LocFont.Size);
          LocFont.Size:=LocFontSize;
        End;
      End;
    except
      Raise;
    end;
  End;{释放坐标位置指针和列表对象}
  Procedure FreeListItem(vList:TList);
  Var
    i:Integer;
  Begin
    For i:=0 to vList.Count-1 Do
      Dispose(vList.Items[i]);
    vList.Free;
  End;begin
  LocList:=TList.Create;
  Try
  Try
      if (Screen.width<>OriWidth)OR(Screen.Height<>OriHeight) then
      begin
        CalBasicScalePars;
        AdjustComponentFont(Self);
        ControlsPostoList(Self,locList);
        locK:=0;
        AdjustControlsScale(Self,locList,locK);   End;
  Except on E:Exception Do
      Raise Exception.Create('进行屏幕分辨率自适应调整时出现错误'+E.Message);
  End;
  Finally
    FreeListItem(locList);
  End;
end;
{ TfdForm }constructor TfdForm.Create(AOwner: TComponent);
begin
  inherited;
  fIsDlgChange:=False;
end;end.
怎么使用？？？

Answer 2

unit uMyClassHelpers;
//实现窗体自适应调整尺寸以适应不同屏幕分辩率的显示问题。interfaceUses
  SysUtils,Windows,Classes,Graphics, Controls,Forms,Dialogs, Math,typinfo;
//  uMySysUtils;Const   //记录设计时的屏幕分辨率
   OriWidth=1024;
   OriHeight=768;var
   OriWidth,OriHeight:Integer;Type
  TfmForm=Class(TForm)   //实现窗体屏幕分辨率的自动调整
  Private
    fScrResolutionRateW: Double;
    fScrResolutionRateH: Double;
    fIsFitDeviceDone: Boolean;
    procedure FitDeviceResolution;
  Protected
    Property IsFitDeviceDone:Boolean Read fIsFitDeviceDone;
    Property ScrResolutionRateH:Double Read fScrResolutionRateH;
    Property ScrResolutionRateW:Double Read fScrResolutionRateW;
  Public
    Constructor Create(AOwner: TComponent); Override;
  End;  TfdForm=Class(TfmForm)   //增加对话框窗体的修改确认
  Protected
    fIsDlgChange:Boolean;
  Public
    Constructor Create(AOwner: TComponent); Override;
    Property IsDlgChange:Boolean Read fIsDlgChange default false;
  End;implementationuses UMain;constructor TfmForm.Create(AOwner: TComponent);
begin
  Inherited Create(AOwner);
  fScrResolutionRateH:=1;
  fScrResolutionRateW:=1;
  Try
    if Not fIsFitDeviceDone then
    Begin
      FitDeviceResolution;
      fIsFitDeviceDone:=True;
    End;
  Except
    fIsFitDeviceDone:=False;
  End;
end;procedure TfmForm.FitDeviceResolution;
Var
  LocList:TList;
  LocFontRate:Double;
  LocFontSize:Integer;
  LocFont:TFont;
  locK:Integer;//计算尺度调整的基本参数
  Procedure CalBasicScalePars;
  Begin
    try
      Self.Scaled:=False;
      fScrResolutionRateH:=screen.height/OriHeight;
      fScrResolutionRateW:=screen.Width/OriWidth;
      LocFontRate:=Min(fScrResolutionRateH,fScrResolutionRateW);
    except
      Raise;
    end;
  End;
  
  function PropertyExists(const AObject: TObject;const APropName:String):Boolean;
  //判断一个属性是否存在
  var
   PropInfo:PPropInfo;
  begin
   PropInfo:=GetPropInfo(AObject.ClassInfo,APropName);
   Result:=Assigned(PropInfo);
  end;  function GetObjectProperty(
     const AObject   : TObject;
     const APropName : string
     ):TObject;
  var
   PropInfo:PPropInfo;
  begin
   Result  :=  nil;
   PropInfo:=GetPropInfo(AObject.ClassInfo,APropName);
   if Assigned(PropInfo) and
       (PropInfo^.PropType^.Kind = tkClass) then
     Result  :=  GetObjectProp(AObject,PropInfo);
  end;//保存原有坐标位置：利用递归法遍历各级容器里的控件，直到最后一级
  Procedure ControlsPostoList(vCtl:TControl;vList:TList);
  Var
    locPRect:^TRect;
    i:Integer;
    locCtl:TControl;
    locFontp:^Integer;
  Begin
    try
      New(locPRect);
      locPRect^:=vCtl.BoundsRect;
      vList.Add(locPRect);
      If PropertyExists(vCtl,'FONT') Then
      Begin
        LocFont:=TFont(GetObjectProperty(vCtl,'FONT'));
        New(locFontp);
        locFontP^:=LocFont.Size;
        vList.Add(locFontP);
//        ShowMessage(vCtl.Name+'Ori:='+InttoStr(LocFont.Size));
      End;
      If vCtl Is TWinControl Then
        For i:=0 to TWinControl(vCtl).ControlCount-1 Do
        begin
          locCtl:=TWinControl(vCtl).Controls[i];
          ControlsPosToList(locCtl,vList);
        end;
    except
      Raise;
    end;
  End;//计算新的坐标位置：利用递归法遍历各级容器里的控件，直到最后一层。
// 计算坐标时先计算顶级容器级的，然后逐级递进
  Procedure AdjustControlsScale(vCtl:TControl;vList:TList;Var vK:Integer);
  Var
    locOriRect,LocNewRect:TRect;
    i:Integer;
    locCtl:TControl;
  Begin
    try
      If vCtl.Align<>alClient Then
      Begin
        locOriRect:=TRect(vList.Items[vK]^);
        With locNewRect Do
        begin
          Left:=Round(locOriRect.Left*fScrResolutionRateW);
          Right:=Round(locOriRect.Right*fScrResolutionRateW);
          Top:=Round(locOriRect.Top*fScrResolutionRateH);
          Bottom:=Round(locOriRect.Bottom*fScrResolutionRateH);
          vCtl.SetBounds(Left,Top,Right-Left,Bottom-Top);
        end;
      End;
      If PropertyExists(vCtl,'FONT') Then
      Begin
        Inc(vK);
        LocFont:=TFont(GetObjectProperty(vCtl,'FONT'));
        locFontSize:=Integer(vList.Items[vK]^);
        LocFont.Size := Round(LocFontRate*locFontSize);
//        ShowMessage(vCtl.Name+'New:='+InttoStr(LocFont.Size));
      End;
      Inc(vK);
      If vCtl Is TWinControl Then
        For i:=0 to TwinControl(vCtl).ControlCount-1 Do
        begin
          locCtl:=TWinControl(vCtl).Controls[i];
          AdjustControlsScale(locCtl,vList,vK);
        end;
    except
      Raise;
    end;
  End;//释放坐标位置指针和列表对象
  Procedure FreeListItem(vList:TList);
  Var
    i:Integer;
  Begin
    For i:=0 to vList.Count-1 Do
      Dispose(vList.Items[i]);
    vList.Free;
  End;begin
  LocList:=TList.Create;
  Try
    Try
      if (Screen.width<>OriWidth)OR(Screen.Height<>OriHeight) then
      begin
        CalBasicScalePars;
//        AdjustComponentFont(Self);
        ControlsPostoList(Self,locList);
        locK:=0;
        AdjustControlsScale(Self,locList,locK);      End;
    Except on E:Exception Do
      Raise Exception.Create('进行屏幕分辨率自适应调整时出现错误'+E.Message);
    End;
  Finally
    FreeListItem(locList);
  End;
end;
{ TfdForm }constructor TfdForm.Create(AOwner: TComponent);
begin
  inherited;
  fIsDlgChange:=False;
end;end. 
解决了。