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分享屏幕自动适应问题
看了很多的屏幕自动适应的处理，感觉都不是很理想。不能适应各种分辨率，也不适应某些宽屏。有没有像WINDOWS那种，随便什么分辨率，屏幕都能适应的代码处理。
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xiaoyulier 2013-12-27
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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。
interface
Uses
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;
implementation
uses 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。
xiaoyulier 2013-12-26
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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;
implementation
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;
{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？？？
lhy 2013-12-26
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自己研发一个。主要是看要求什么样了。
「已注销」 2013-12-26
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控件自适应窗体变化，而大小变化，不是有个控件吗？可以去看看，我一直没下载到
xiaoyulier 2013-12-26
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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。
hhhfff2010 2013-12-05
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没有好的工具或方法实现自动适应 。。。
鐵蛋 2013-12-05
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屏幕自动适应似乎没有一个很完美的解决方案
haitao 2013-12-04
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要求不高的话，对齐、锚位 使用好也差不多了
