unit USWLMSelectDa;
{$S-,W-,R-}
{$C PRELOAD}
interface
uses
Windows,Messages,SysUtils, Types, Classes, Graphics, Controls,StdCtrls,Forms,
StrUtils,Math,ADODB,TFlatButtonUnit,USWLMStyleEdit;
type
TEditDataType = (sdString, sdInteger,sdFloat,sdMoney);
TVAlignment = (tvaTopJustify, tvaCenter, tvaBottomJustify);
TDataStyle = (dsBm, dsZj, dsMc);
type
TSelectDa = class(TCustomControl)
private
FPen: TPen;
FBrush:TBrush;
FFont:TFont;
FCaption:string;
FBmText:string;
FZjText:string;
FMcText:string;
FDataType: TEditDataType;
FPrecision: Integer;
FReadOnly:Boolean;
FEditFont:TFont;
FHAlignment : TAlignment;
FVAlignment : TVAlignment;
FEdit:TStyleEdit;
FButton:TFlatButton;
FTitleName:string;
FTableName:string;
FDataStyle:TDataStyle;
FBmField:string;
FZjField:string;
FMcField:string;
FOnClick: TNotifyEvent;
FOnEnter: TNotifyEvent;
FOnExit: TNotifyEvent;
FOnKeyPress: TKeyPressEvent;
procedure SetPen(const Value:TPen);
procedure SetBrush(const Value:TBrush);
procedure SetFont(const Value:TFont);
procedure SetCaption(const Value:string);
procedure SetBmText(const Value:string);
procedure SetZjText(const Value:string);
procedure SetMcText(const Value:string);
procedure SetDataType(const Value: TEditDataType);
procedure SetPrecision(const Value: Integer);
procedure SetReadOnly(const Value:Boolean);
procedure SetEditFont(const Value:TFont);
procedure SetHAlignment(const Value:TAlignment);
procedure SetVAlignment(const Value:TVAlignment);
procedure SetTitleName(const Value:string);
procedure SetTableName(const Value:string);
procedure SetDataStyle(const Value:TDataStyle);
procedure SetBmField(const Value:string);
procedure SetZjField(const Value:string);
procedure SetMcField(const Value:string);
function GetAsFloat(): string;
function GetAsMoney(): string;
function GetAsInteger(): string;
function GetAsText(): string;
procedure SetAsFloat(const Value: string);
procedure SetAsMoney(const Value: string);
procedure SetAsInteger(const Value: string);
procedure SetAsText(const Value: string);
procedure StyleChanged(Sender: TObject);
procedure SetBackColor(const Value : TColor);
procedure SetColorOnEnter(const Value : TColor);
procedure DoClick(Sender: TObject);
procedure DoEnter(Sender: TObject);
procedure DoExit(Sender: TObject);
procedure DoKeyPress(Sender: TObject; var Key: Char);
protected
procedure Paint; override;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
published
property Pen: TPen read FPen write SetPen;
property Brush: TBrush read FBrush write SetBrush;
property Font: TFont read FFont write SetFont;
property Caption:string read FCaption write SetCaption;
property Bm:string read FBmText write SetBmText ;
property Zjf:string read FZjText write SetZjText ;
property Mc:string read FMcText write SetMcText ;
property Text:string read FMcText write SetMcText;
property DataType: TEditDataType read FDataType write SetDataType default SdString;
property Precision: Integer read Fprecision write SetPrecision default 2;
property ReadOnly: Boolean read FReadOnly write SetReadOnly default False;
property EditFont: TFont read FEditFont write SetEditFont;
property HAlignment:TAlignment read FHAlignment write SetHAlignment default taLeftJustify;
property VAlignment:TVAlignment read FVAlignment write SetVAlignment default tvaBottomJustify;
property TitleName:string read FTitleName write SetTitleName ;
property TableName:string read FTableName write SetTableName ;
property DataStyle:TDataStyle read FDataStyle write SetDataStyle default dsBm;
property BmField:string read FBmField write SetBmField ;
property ZjField:string read FZjField write SetZjField ;
property McField:string read FMcField write SetMcField ;
property AsFloat:string read GetAsFloat {write SetAsFloat};
property AsMoney:string read GetAsMoney {write SetAsMoney};
property AsInt: string read GetAsInteger {write SetAsInteger};
property AsStr: string read GetAsText write SetAsText;
property OnClick: TNotifyEvent read FOnClick write FOnClick;
property OnKeyPress: TKeyPressEvent read FOnKeyPress write FOnKeyPress;
property OnEnter: TNotifyEvent read FOnEnter write FOnEnter;
property OnExit: TNotifyEvent read FOnExit write FOnExit;
property BackColor : TColor write SetBackColor;
property ColorOnEnter : TColor write SetColorOnEnter;
property AlignDisabled;
property VisibleDockClientCount;
property ControlCount;
property ParentWindow;
property Showing;
property TabOrder;
property TabStop;
end;
procedure Register;
implementation
uses Consts;
procedure TSelectDa.SetPen(const Value: TPen);
begin
FPen.Assign(Value);
Invalidate;
end;
procedure TSelectDa.SetBrush(const Value:TBrush);
begin
FBrush.Assign(Value);
Invalidate;
end;
procedure TSelectDa.SetFont(const Value:TFont);
begin
FFont.Assign(Value);
Invalidate;
end;
procedure TSelectDa.SetCaption(const Value:string);
begin
if FCaption <> Value then
begin
FCaption:=Value;
Invalidate;
end;
end;
procedure TSelectDa.SetBmText(const Value:string);
begin
if FBmText <> Value then
begin
FBmText:=Value;
Invalidate;
end;
end;
procedure TSelectDa.SetZjText(const Value:string);
begin
if FZjText <> Value then
begin
FZjText:=Value;
end;
end;
procedure TSelectDa.SetMcText(const Value:string);
begin
if FMcText <> Value then
begin
FMcText:=Value;
Invalidate;
end;
end;
procedure TSelectDa.SetReadOnly(const Value:Boolean);
begin
if FReadOnly<>Value then
begin
FReadOnly:=Value;
Invalidate;
end;
end;
procedure TSelectDa.SetEditFont(const Value:TFont);
begin
FEditFont.Assign(Value);
Invalidate;
end;
procedure TSelectDa.SetPrecision(const Value: Integer);
begin
if Fprecision<>Value then
begin
case Value of
1..6:FPrecision:=Value;
else FPrecision:=2;
end;
Invalidate;
end;
end;
procedure TSelectDa.SetDataType(const Value: TEditDataType);
begin
if FDataType <> Value then
begin
FDataType:=Value;
case FDataType of
SdString:FEdit.InputStyle:=IsString;
SdInteger:FEdit.InputStyle:=IsInteger;
SdFloat:FEdit.InputStyle:=IsFloat;
SdMoney:FEdit.InputStyle:=IsMoney;
else FEdit.InputStyle:=IsString;
end;
Invalidate;
end;
end;
procedure TSelectDa.SetHAlignment(const Value:TAlignment);
begin
if FHAlignment <> Value then
begin
FHAlignment:=Value;
Invalidate;
end;
end;
procedure TSelectDa.SetVAlignment(const Value:TVAlignment);
begin
if FVAlignment <> Value then
begin
FVAlignment:=Value;
Invalidate;
end;
end;
procedure TSelectDa.SetTitleName(const Value:string);
begin
if FTitleName<>Value then FTitleName:=Value;
end;
procedure TSelectDa.SetTableName(const Value:string);
begin
if FTableName<>Value then
begin
FTableName:=Value;
Invalidate;
end;
end;
procedure TSelectDa.SetDataStyle(const Value:TDataStyle);
begin
if FDataStyle<>Value then FDataStyle:=Value;
end;
procedure TSelectDa.SetBmField(const Value:string);
begin
if FBmField<>Value then
begin
FBmField:=Value;
Invalidate;
end;
end;
procedure TSelectDa.SetZjField(const Value:string);
begin
if FZjField<>Value then FZjField:=Value;
end;
procedure TSelectDa.SetMcField(const Value:string);
begin
if FMcField<>Value then
begin
FMcField:=Value;
Invalidate;
end;
end;
function TSelectDa.GetAsFloat: string;
function StrToDouble(S:string):Double;
begin
if not trystrToFloat(s,Result) then Result:=0;
end;
begin
case FPrecision of
1..6: Result:=FormatFloat('###0.'+DupeString('0',FPrecision),StrToDouble(FMcText));
else Result:=FormatFloat('###0.00',StrToDouble(FMcText));
end;
end;
function TSelectDa.GetAsMoney: string;
function StrToDouble(S:string):Double;
begin
if not trystrToFloat(s,Result) then Result:=0;
end;
begin
Result:=FormatFloat('###0.00',StrToDouble(FMcText));
end;
function TSelectDa.GetAsInteger: string;
Function StrToInteger(S:string):integer;
begin
if not trystrToInt(s,Result) then Result:=0;
end;
begin
Result:=IntToStr(StrToInteger(FMcText));
end;
function TSelectDa.GetAsText: string;
begin
Result:=FMcText;
end;
procedure TSelectDa.SetAsFloat(const Value: string);
function StrToDouble(S:string):Double;
begin
if not trystrToFloat(s,Result) then Result:=0;
end;
var
f:Double;
begin
f:=StrToDouble(Value);
case FPrecision of
1..6:
begin
f:=RoundTo(f,-FPrecision);
SetMcText(FormatFloat('###0.'+DupeString('0',FPrecision),f));
end
else
begin
f:=RoundTo(f,-2);
SetMcText(FormatFloat('###0.00',f));
end;
end;
end;
procedure TSelectDa.SetAsMoney(const Value: string);
function StrToDouble(S:string):Double;
begin
if not trystrToFloat(s,Result) then Result:=0;
end;
var
f:Double;
begin
f:=StrToDouble(Value);
f:=RoundTo(f,-2);
SetMcText(FormatFloat('###0.00',f));
end;
procedure TSelectDa.SetAsInteger(const Value: string);
Function StrToInteger(S:string):integer;
begin
if not trystrToInt(s,Result) then Result:=0;
end;
var
i:Integer;
begin
i:=StrToInteger(Value);
SetMcText(IntToStr(i));
end;
procedure TSelectDa.SetAsText(const Value: string);
begin
SetMcText(Value);
end;
procedure TSelectDa.StyleChanged(Sender: TObject);
begin
Invalidate;
end;
procedure TSelectDa.SetBackColor(const Value : TColor);
begin
FEdit.BackColor:=Value;
end;
procedure TSelectDa.SetColorOnEnter(const Value : TColor);
begin
FEdit.ColorOnEnter:=Value;
end;
constructor TSelectDa.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
Width:=188;
Height:=20;
FCaption:='未命名';
FBmText:='';
FZjText:='';
FMcText:='';
FReadOnly:=False;
FHAlignment:=taLeftJustify;
FVAlignment:=tvaBottomJustify;
FDataType:=SdString;
FPrecision:=2;
FTitleName:='';
FTableName:='';
FDataStyle:=dsBm;
FBmField:='';
FZjField:='';
FMcField:='';
FPen := TPen.Create;
FPen.OnChange:=StyleChanged;
FBrush := TBrush.Create;
FBrush.OnChange:=StyleChanged;
FFont := TFont.Create;
FFont.OnChange:=StyleChanged;
FFont.Charset:=GB2312_CHARSET;
FFont.Name:='宋体';
FFont.Size:=9;
FEditFont := TFont.Create;
FEditFont.OnChange:=StyleChanged;
FEditFont.Charset:=GB2312_CHARSET;
FEditFont.Name:='宋体';
FEditFont.Size:=9;
FEdit:=TStyleEdit.Create(Self);
FEdit.Parent:=Self;
FEdit.BorderStyle:=bsNone;
FEdit.InputStyle:=isString;
FEdit.OnKeyPress:=DoKeyPress;
FEdit.OnEnter:=DoEnter;
FEdit.OnExit:=DoExit;
FButton:=TFlatButton.Create(Self);
FButton.Parent:=Self;
FButton.Font:=FFont;
FButton.ColorBorder:=FBrush.Color;
FButton.Color:=FBrush.Color;
FButton.ColorDown:=FBrush.Color;
FButton.ColorShadow:=FBrush.Color;
FButton.ColorFocused:=FBrush.Color;
FButton.Width:=19;
FButton.Caption:='…';
FButton.OnClick:=DoClick;
end;
procedure TSelectDa.Paint;
var
aText:Pchar;
aRect:TRect;
Flag:DWord;
begin
with Canvas do
begin
Font:=FFont;
Pen:=FPen;
Brush:=FBrush;
FillRect(ClientRect);
if FBmText<>'' then aText:=Pchar(FCaption+'['+FBmText+']') else aText:=Pchar(FCaption);
aRect:=Rect(ClientRect.Left+FPen.Width, ClientRect.Top+FPen.Width, ClientRect.Right-FPen.Width, ClientRect.Bottom-FPen.Width);
DrawText(Handle, aText, StrLen(aText), aRect, (DT_SINGLELINE or DT_VCENTER) or DT_LEFT);
Inc(aRect.Left,TextWidth(aText));
Dec(aRect.Right,FButton.Width);
MoveTo(aRect.Left,aRect.Bottom);
LineTo(aRect.Right,aRect.Bottom);
Inc(aRect.Left,FPen.Width);
if FReadOnly then
begin
FEdit.Visible:=False;
FButton.Visible:=False;
Flag:=DT_SINGLELINE;
case FHAlignment of
taLeftJustify:Flag:=Flag or DT_LEFT;
taRightJustify:Flag:=Flag or DT_RIGHT;
taCenter:Flag:=Flag or DT_CENTER;
else Flag:=Flag or DT_LEFT;
end;
case FVAlignment of
tvaTopJustify:Flag:=Flag or DT_TOP;
tvaCenter:Flag:=Flag or DT_VCENTER;
tvaBottomJustify:Flag:=Flag or DT_BOTTOM;
else Flag:=Flag or DT_BOTTOM;
end;
Font:=FEditFont;
case FDataType of
SdString:DrawText(Handle, PChar(AsStr), StrLen(PChar(AsStr)), aRect, Flag);
SdInteger:DrawText(Handle, PChar(AsInt), StrLen(PChar(AsInt)), aRect, Flag);
SdFloat:DrawText(Handle, PChar(AsFloat), StrLen(PChar(AsFloat)), aRect, Flag);
SdMoney:DrawText(Handle, PChar(AsMoney), StrLen(PChar(AsMoney)), aRect, Flag);
end;
end
else
begin
FEdit.Alignment:=FHAlignment;
FEdit.Font:=FEditFont;
FEdit.Text:=FMcText;
FEdit.Width:=aRect.Right-aRect.Left;
FEdit.Height:=Min(Max(TextHeight(FMcText),TextHeight(FCaption)),aRect.Bottom-aRect.Top);
FEdit.Left:=aRect.Left;
case FVAlignment of
tvaTopJustify:FEdit.Top:=aRect.Top;
tvaCenter:FEdit.Top:=aRect.Top+(aRect.Bottom-aRect.Top-FEdit.Height)div 2;
tvaBottomJustify:FEdit.Top:=aRect.Top+(aRect.Bottom-aRect.Top-FEdit.Height);
else FEdit.Top:=aRect.Top;
end;
FButton.Left:=aRect.Right;
FButton.Top:=aRect.Top;
FButton.Height:=aRect.Bottom-aRect.Top;
if (FDataType=SdString) and (FBmField<>'') and (FMcField<>'') and (FTableName<>'') then FButton.Visible:=True
else FButton.Visible:=False;
end;
end;
end;
destructor TSelectDa.Destroy;
begin
FPen.Free;
FBrush.Free;
FFont.Free;
FEditFont.Free;
if Assigned(FEdit) then FreeAndNil(FEdit);
if Assigned(FButton) then FreeAndNil(FButton);
inherited Destroy;
end;
procedure TSelectDa.DoClick(Sender: TObject);
begin
if Assigned(FOnClick) then FOnClick(Self);
end;
procedure TSelectDa.DoEnter(Sender: TObject);
begin
if Assigned(FOnEnter) then FOnEnter(Self);
end;
procedure TSelectDa.DoExit(Sender: TObject);
begin
if Assigned(FOnExit) then FOnExit(Self);
end;
procedure TSelectDa.DoKeyPress(Sender: TObject; var Key: Char);
begin
if Assigned(FOnKeyPress) then FOnKeyPress(Self,Key);
end;
procedure Register;
begin
RegisterComponents('swlmsoft', [TSelectDa]);
end;
end.