Шустрый
Профиль
Группа: Участник
Сообщений: 107
Регистрация: 13.1.2006
Репутация: нет
Всего: нет
|
Здравствуйте эксперты. У меня такая проблема: установил я два вида кнопки, одна (типа ТБаттон) имеет свойства, которые отлавливает перемещение мыши над кнопкой; а вторая (типа ТСпидБаттон) имеет своиства закрашивать саму кнопку разными цветами. Я попробовал совместить их в один компонент, но что-то не получается, если кто знает плиз хелп. Вот исходник первой кнопки: | Код |
unit BtnNew;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls;
type
TBtnNew = class(TButton)
private
{ Private declarations }
FOnMouseLeave: TNotifyEvent;
FOnMouseEnter: TNotifyEvent;
procedure CMMouseEnter(var Message: TMessage); message CM_MOUSEENTER;
procedure CMMouseLeave(var Message: TMessage); message CM_MOUSELEAVE;
protected
{ Protected declarations }
public
{ Public declarations }
published
{ Published declarations }
property OnMouseLeave: TNotifyEvent read FOnMouseLeave write FOnMouseLeave;
property OnMouseEnter: TNotifyEvent read FOnMouseEnter write FOnMouseEnter;
end;
procedure Register;
implementation
procedure Register;
begin
RegisterComponents('Standard', [TBtnNew]);
end;
{ TBS_Label }
procedure TBtnNew.CMMouseEnter(var Message: TMessage);
begin
if Assigned(FOnMouseEnter) then
FOnMouseEnter(Self);
end;
procedure TBtnNew.CMMouseLeave(var Message: TMessage);
begin
if Assigned(FOnMouseLeave) then
FOnMouseLeave(Self);
end;
end.
|
Вот исходник второй кнопки: | Код |
unit ColorBtn;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, Buttons;
type
TColorBtn = class(TButton)
private
FCanvas: TCanvas;
IsFocused: Boolean;
F3DFrame: boolean;
FButtonColor: TColor;
procedure Set3DFrame(Value: boolean);
procedure SetButtonColor(Value: TColor);
procedure CNDrawItem(var Message: TWMDrawItem); message CN_DRAWITEM;
procedure WMLButtonDblClk(var Message: TWMLButtonDblClk); message
WM_LBUTTONDBLCLK;
procedure DrawButtonText(const Caption: string; TRC: TRect; State:
TButtonState; BiDiFlags: Longint);
procedure CalcuateTextPosition(const Caption: string; var TRC: TRect;
BiDiFlags: Longint);
protected
procedure CreateParams(var Params: TCreateParams); override;
procedure SetButtonStyle(ADefault: Boolean); override;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
published
property ButtonColor: TColor read FButtonColor write SetButtonColor default
clBtnFace;
property Frame3D: boolean read F3DFrame write Set3DFrame default False;
end;
procedure Register;
implementation
{ TColorBtn }
constructor TColorBtn.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
Height := 21;
FCanvas := TCanvas.Create;
FButtonColor := clBtnFace;
F3DFrame := False;
end;
destructor TColorBtn.Destroy;
begin
FCanvas.Free;
inherited Destroy;
end;
procedure TColorBtn.CreateParams(var Params: TCreateParams);
begin
inherited CreateParams(Params);
with Params do
Style := Style or BS_OWNERDRAW;
end;
procedure TColorBtn.Set3DFrame(Value: boolean);
begin
if F3DFrame <> Value then
F3DFrame := Value;
end;
procedure TColorBtn.SetButtonColor(Value: TColor);
begin
if FButtonColor <> Value then
begin
FButtonColor := Value;
Invalidate;
end;
end;
procedure TColorBtn.WMLButtonDblClk(var Message: TWMLButtonDblClk);
begin
Perform(WM_LBUTTONDOWN, Message.Keys, Longint(Message.Pos));
end;
procedure TColorBtn.SetButtonStyle(ADefault: Boolean);
begin
if IsFocused <> ADefault then
IsFocused := ADefault;
end;
procedure TColorBtn.CNDrawItem(var Message: TWMDrawItem);
var
RC: TRect;
Flags: Longint;
State: TButtonState;
IsDown, IsDefault: Boolean;
DrawItemStruct: TDrawItemStruct;
begin
DrawItemStruct := Message.DrawItemStruct^;
FCanvas.Handle := DrawItemStruct.HDC;
RC := ClientRect;
with DrawItemStruct do
begin
IsDown := ItemState and ODS_SELECTED <> 0;
IsDefault := ItemState and ODS_FOCUS <> 0;
if not Enabled then
State := bsDisabled
else if IsDown then
State := bsDown
else
State := bsUp;
end;
Flags := DFCS_BUTTONPUSH or DFCS_ADJUSTRECT;
if IsDown then
Flags := Flags or DFCS_PUSHED;
if DrawItemStruct.ItemState and ODS_DISABLED <> 0 then
Flags := Flags or DFCS_INACTIVE;
if IsFocused or IsDefault then
begin
FCanvas.Pen.Color := clWindowFrame;
FCanvas.Pen.Width := 1;
FCanvas.Brush.Style := bsClear;
FCanvas.Rectangle(RC.Left, RC.Top, RC.Right, RC.Bottom);
InflateRect(RC, -1, -1);
end;
if IsDown then
begin
FCanvas.Pen.Color := clBtnShadow;
FCanvas.Pen.Width := 1;
FCanvas.Rectangle(RC.Left, RC.Top, RC.Right, RC.Bottom);
InflateRect(RC, -1, -1);
if F3DFrame then
begin
FCanvas.Pen.Color := FButtonColor;
FCanvas.Pen.Width := 1;
DrawFrameControl(DrawItemStruct.HDC, RC, DFC_BUTTON, Flags);
end;
end
else
DrawFrameControl(DrawItemStruct.HDC, RC, DFC_BUTTON, Flags);
FCanvas.Brush.Color := FButtonColor;
FCanvas.FillRect(RC);
InflateRect(RC, 1, 1);
if IsFocused then
begin
RC := ClientRect;
InflateRect(RC, -1, -1);
end;
FCanvas.Font := Self.Font;
if IsDown then
OffsetRect(RC, 1, 1);
DrawButtonText(Caption, RC, State, 0);
if IsFocused and IsDefault then
begin
RC := ClientRect;
InflateRect(RC, -4, -4);
FCanvas.Pen.Color := clWindowFrame;
Windows.DrawFocusRect(FCanvas.Handle, RC);
end;
FCanvas.Handle := 0;
end;
procedure TColorBtn.CalcuateTextPosition(const Caption: string; var TRC: TRect;
BiDiFlags: Integer);
var
TB: TRect;
TS, TP: TPoint;
begin
with FCanvas do
begin
TB := Rect(0, 0, TRC.Right + TRC.Left, TRC.Top + TRC.Bottom);
DrawText(Handle, PChar(Caption), Length(Caption), TB, DT_CALCRECT or
BiDiFlags);
TS := Point(TB.Right - TB.Left, TB.Bottom - TB.Top);
TP.X := ((TRC.Right - TRC.Left) - TS.X + 1) div 2;
TP.Y := ((TRC.Bottom - TRC.Top) - TS.Y + 1) div 2;
OffsetRect(TB, TP.X + TRC.Left, TP.Y + TRC.Top);
TRC := TB;
end;
end;
procedure TColorBtn.DrawButtonText(const Caption: string; TRC: TRect; State:
TButtonState; BiDiFlags: Integer);
begin
with FCanvas do
begin
CalcuateTextPosition(Caption, TRC, BiDiFlags);
Brush.Style := bsClear;
if State = bsDisabled then
begin
OffsetRect(TRC, 1, 1);
Font.Color := clBtnHighlight;
DrawText(Handle, PChar(Caption), Length(Caption), TRC,
DT_CENTER or DT_VCENTER or BiDiFlags);
OffsetRect(TRC, -1, -1);
Font.Color := clBtnShadow;
DrawText(Handle, PChar(Caption), Length(Caption), TRC,
DT_CENTER or DT_VCENTER or BiDiFlags);
end
else
DrawText(Handle, PChar(Caption), Length(Caption), TRC,
DT_CENTER or DT_VCENTER or BiDiFlags);
end;
end;
procedure Register;
begin
RegisterComponents('Controls', [TColorBtn]);
end;
end.
|
А вот так я извращался: | Код |
unit ColorBtn;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, Buttons;
type
TColorBtn = class(TButton)
private
FOnMouseLeave: TNotifyEvent;
FOnMouseEnter: TNotifyEvent;
procedure CMMouseEnter(var Message: TMessage); message CM_MOUSEENTER;
procedure CMMouseLeave(var Message: TMessage); message CM_MOUSELEAVE;
FCanvas: TCanvas;
IsFocused: Boolean;
F3DFrame: boolean;
FButtonColor: TColor;
procedure Set3DFrame(Value: boolean);
procedure SetButtonColor(Value: TColor);
procedure CNDrawItem(var Message: TWMDrawItem); message CN_DRAWITEM;
procedure WMLButtonDblClk(var Message: TWMLButtonDblClk); message WM_LBUTTONDBLCLK;
procedure DrawButtonText(const Caption: string; TRC: TRect; State:
TButtonState; BiDiFlags: Longint);
procedure CalcuateTextPosition(const Caption: string; var TRC: TRect;
BiDiFlags: Longint);
protected
procedure CreateParams(var Params: TCreateParams); override;
procedure SetButtonStyle(ADefault: Boolean); override;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
published
property OnMouseLeave: TNotifyEvent read FOnMouseLeave write FOnMouseLeave;
property OnMouseEnter: TNotifyEvent read FOnMouseEnter write FOnMouseEnter;
property ButtonColor: TColor read FButtonColor write SetButtonColor default
clBtnFace;
property Frame3D: boolean read F3DFrame write Set3DFrame default False;
end;
procedure Register;
implementation
{ TColorBtn }
constructor TColorBtn.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
Height := 21;
FCanvas := TCanvas.Create;
FButtonColor := clBtnFace;
F3DFrame := False;
end;
destructor TColorBtn.Destroy;
begin
FCanvas.Free;
inherited Destroy;
end;
procedure TColorBtn.CMMouseEnter(var Message: TMessage);
begin
if Assigned(FOnMouseEnter) then
FOnMouseEnter(Self);
end;
procedure TColorBtn.CMMouseLeave(var Message: TMessage);
begin
if Assigned(FOnMouseLeave) then
FOnMouseLeave(Self);
end;
procedure TColorBtn.CreateParams(var Params: TCreateParams);
begin
inherited CreateParams(Params);
with Params do
Style := Style or BS_OWNERDRAW;
end;
procedure TColorBtn.Set3DFrame(Value: boolean);
begin
if F3DFrame <> Value then
F3DFrame := Value;
end;
procedure TColorBtn.SetButtonColor(Value: TColor);
begin
if FButtonColor <> Value then
begin
FButtonColor := Value;
Invalidate;
end;
end;
procedure TColorBtn.WMLButtonDblClk(var Message: TWMLButtonDblClk);
begin
Perform(WM_LBUTTONDOWN, Message.Keys, Longint(Message.Pos));
end;
procedure TColorBtn.SetButtonStyle(ADefault: Boolean);
begin
if IsFocused <> ADefault then
IsFocused := ADefault;
end;
procedure TColorBtn.CNDrawItem(var Message: TWMDrawItem);
var
RC: TRect;
Flags: Longint;
State: TButtonState;
IsDown, IsDefault: Boolean;
DrawItemStruct: TDrawItemStruct;
begin
DrawItemStruct := Message.DrawItemStruct^;
FCanvas.Handle := DrawItemStruct.HDC;
RC := ClientRect;
with DrawItemStruct do
begin
IsDown := ItemState and ODS_SELECTED <> 0;
IsDefault := ItemState and ODS_FOCUS <> 0;
if not Enabled then
State := bsDisabled
else if IsDown then
State := bsDown
else
State := bsUp;
end;
Flags := DFCS_BUTTONPUSH or DFCS_ADJUSTRECT;
if IsDown then
Flags := Flags or DFCS_PUSHED;
if DrawItemStruct.ItemState and ODS_DISABLED <> 0 then
Flags := Flags or DFCS_INACTIVE;
if IsFocused or IsDefault then
begin
FCanvas.Pen.Color := clWindowFrame;
FCanvas.Pen.Width := 1;
FCanvas.Brush.Style := bsClear;
FCanvas.Rectangle(RC.Left, RC.Top, RC.Right, RC.Bottom);
InflateRect(RC, -1, -1);
end;
if IsDown then
begin
FCanvas.Pen.Color := clBtnShadow;
FCanvas.Pen.Width := 1;
FCanvas.Rectangle(RC.Left, RC.Top, RC.Right, RC.Bottom);
InflateRect(RC, -1, -1);
if F3DFrame then
begin
FCanvas.Pen.Color := FButtonColor;
FCanvas.Pen.Width := 1;
DrawFrameControl(DrawItemStruct.HDC, RC, DFC_BUTTON, Flags);
end;
end
else
DrawFrameControl(DrawItemStruct.HDC, RC, DFC_BUTTON, Flags);
FCanvas.Brush.Color := FButtonColor;
FCanvas.FillRect(RC);
InflateRect(RC, 1, 1);
if IsFocused then
begin
RC := ClientRect;
InflateRect(RC, -1, -1);
end;
FCanvas.Font := Self.Font;
if IsDown then
OffsetRect(RC, 1, 1);
DrawButtonText(Caption, RC, State, 0);
if IsFocused and IsDefault then
begin
RC := ClientRect;
InflateRect(RC, -4, -4);
FCanvas.Pen.Color := clWindowFrame;
Windows.DrawFocusRect(FCanvas.Handle, RC);
end;
FCanvas.Handle := 0;
end;
procedure TColorBtn.CalcuateTextPosition(const Caption: string; var TRC: TRect;
BiDiFlags: Integer);
var
TB: TRect;
TS, TP: TPoint;
begin
with FCanvas do
begin
TB := Rect(0, 0, TRC.Right + TRC.Left, TRC.Top + TRC.Bottom);
DrawText(Handle, PChar(Caption), Length(Caption), TB, DT_CALCRECT or
BiDiFlags);
TS := Point(TB.Right - TB.Left, TB.Bottom - TB.Top);
TP.X := ((TRC.Right - TRC.Left) - TS.X + 1) div 2;
TP.Y := ((TRC.Bottom - TRC.Top) - TS.Y + 1) div 2;
OffsetRect(TB, TP.X + TRC.Left, TP.Y + TRC.Top);
TRC := TB;
end;
end;
procedure TColorBtn.DrawButtonText(const Caption: string; TRC: TRect; State:
TButtonState; BiDiFlags: Integer);
begin
with FCanvas do
begin
CalcuateTextPosition(Caption, TRC, BiDiFlags);
Brush.Style := bsClear;
if State = bsDisabled then
begin
OffsetRect(TRC, 1, 1);
Font.Color := clBtnHighlight;
DrawText(Handle, PChar(Caption), Length(Caption), TRC,
DT_CENTER or DT_VCENTER or BiDiFlags);
OffsetRect(TRC, -1, -1);
Font.Color := clBtnShadow;
DrawText(Handle, PChar(Caption), Length(Caption), TRC,
DT_CENTER or DT_VCENTER or BiDiFlags);
end
else
DrawText(Handle, PChar(Caption), Length(Caption), TRC,
DT_CENTER or DT_VCENTER or BiDiFlags);
end;
end;
procedure Register;
begin
RegisterComponents('Controls', [TColorBtn]);
end;
end.
|
Ошибка выходит вроде этого: [Error] ColorBtn.pas(18): Field definition not allowed after methods or properties |
Как добавить несколько свойств к новому компоненту, на что ругается так и не понял 
Загрузка ...
*щёлк*
