{----------------------------------------------------------------------------- The contents of this file are subject to the Mozilla Public License Version 1.1 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.mozilla.org/MPL/MPL-1.1.html Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either expressed or implied. See the License for the specific language governing rights and limitations under the License. The Original Code is: JvPanel.pas, released on 2001-02-28. The Initial Developer of the Original Code is Sébastien Buysse [sbuysse att buypin dott com] Portions created by Sébastien Buysse are Copyright (C) 2001 Sébastien Buysse. All Rights Reserved. Contributor(s): Michael Beck [mbeck att bigfoot dott com]. pongtawat Peter Thornqvist [peter3 at sourceforge dot net] Jens Fudickar [jens dott fudickar att oratool dott de] dejoy den [dejoy att ynl dott gov dott cn] Changes: >> dejoy --2005-04-28 - Change TJvArrangeSettings to inherited from TJvPersistentProperty. - TJvCustomArrangePanel implemented interface of IJvHotTrack. - Renamed HotColor property to HotTrackOptions.Color. You may retrieve the latest version of this file at the Project JEDI's JVCL home page, located at http://jvcl.delphi-jedi.org Known Issues: -----------------------------------------------------------------------------} // $Id$ unit JvPanel; {$I jvcl.inc} interface uses {$IFDEF UNITVERSIONING} JclUnitVersioning, {$ENDIF UNITVERSIONING} Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, ExtCtrls, JvTypes, JvThemes, JvComponent, JvExtComponent, JvExControls, JvHotTrackPersistent; type TJvPanelResizeParentEvent = procedure(Sender: TObject; nLeft, nTop, nWidth, nHeight: Integer) of object; TJvPanelChangedSizeEvent = procedure(Sender: TObject; ChangedSize: Integer) of object; TJvAutoSizePanel = (asNone, asWidth, asHeight, asBoth); TJvArrangeSettingsVAlignment = (asTop, asVCenter, asBottom); TJvArrangeSettingsHAlignment = (asLeft, asCenter, asRight); TJvArrangeSettings = class(TJvPersistentProperty) private FAutoArrange: Boolean; FAutoSize: TJvAutoSizePanel; FWrapControls: Boolean; FBorderLeft: Integer; FBorderTop: Integer; FDistanceVertical: Integer; FDistanceHorizontal: Integer; FShowNotVisibleAtDesignTime: Boolean; FMaxWidth: Integer; FVerticalAlignment: TJvArrangeSettingsVAlignment; FHorizontalAlignment: TJvArrangeSettingsHAlignment; FMaxControlsPerLine: Integer; FHorizontalAlignLines: Boolean; procedure SetWrapControls(Value: Boolean); procedure SetAutoArrange(Value: Boolean); procedure SetAutoSize(Value: TJvAutoSizePanel); procedure SetBorderLeft(Value: Integer); procedure SetBorderTop(Value: Integer); procedure SetDistanceVertical(Value: Integer); procedure SetDistanceHorizontal(Value: Integer); procedure SetMaxWidth(Value: Integer); procedure SetHorizontalAlignment(const Value: TJvArrangeSettingsHAlignment); procedure SetVerticalAlignment(const Value: TJvArrangeSettingsVAlignment); procedure SetMaxControlsPerLine(const Value: Integer); procedure SetHorizontalAlignLines(const Value: Boolean); public constructor Create(AOwner: TPersistent); override; destructor Destroy; override; procedure Assign(Source: TPersistent); override; published property WrapControls: Boolean read FWrapControls write SetWrapControls default True; property BorderLeft: Integer read FBorderLeft write SetBorderLeft default 0; property BorderTop: Integer read FBorderTop write SetBorderTop default 0; property DistanceVertical: Integer read FDistanceVertical write SetDistanceVertical default 0; property DistanceHorizontal: Integer read FDistanceHorizontal write SetDistanceHorizontal default 0; property ShowNotVisibleAtDesignTime: Boolean read FShowNotVisibleAtDesignTime write FShowNotVisibleAtDesignTime default True; property AutoSize: TJvAutoSizePanel read FAutoSize write SetAutoSize default asNone; property AutoArrange: Boolean read FAutoArrange write SetAutoArrange default False; property MaxWidth: Integer read FMaxWidth write SetMaxWidth default 0; { MaxControlsPerLine specifies the max. number of controls that fit into a line. The following controls are moved to the next line. A value of zero means no limit. WrapControls is still considered. } property MaxControlsPerLine: Integer read FMaxControlsPerLine write SetMaxControlsPerLine default 0; { VerticalAlignment aligns the arranged control-block. in the panel unless AutoSize is asBoth or asHeight. } property VerticalAlignment: TJvArrangeSettingsVAlignment read FVerticalAlignment write SetVerticalAlignment default asTop; { HorizontalAlignment aligns the arranged control-block in the panel unless AutoSize is asBoth or asWidth. } property HorizontalAlignment: TJvArrangeSettingsHAlignment read FHorizontalAlignment write SetHorizontalAlignment default asLeft; { HorizontalAlignLines aligns the control-lines. This only works if WrapControls or MaxControlsPerLine is enabled } property HorizontalAlignLines: Boolean read FHorizontalAlignLines write SetHorizontalAlignLines default False; end; IJvArrangePanel = interface ['{8EE63749-CDDC-4436-9067-4EF0434B43C2}'] procedure ArrangeControls; procedure DisableArrange; procedure EnableArrange; function GetArrangeSettings: TJvArrangeSettings; procedure SetArrangeSettings(const Value: TJvArrangeSettings); property ArrangeSettings: TJvArrangeSettings read GetArrangeSettings write SetArrangeSettings; end; TJvPanelHotTrackOptions = class(TJvHotTrackOptions) public constructor Create(AOwner: TPersistent); override; published property Color default clBtnFace; end; TJvPanelMoveEvent = procedure(Sender: TObject; X, Y: Integer; var Allow: Boolean) of object; TJvCustomArrangePanel = class(TJvCustomPanel, IJvDenySubClassing, IJvHotTrack, IJvArrangePanel) private FTransparent: Boolean; FFlatBorder: Boolean; FFlatBorderColor: TColor; FMultiLine: Boolean; FSizeable: Boolean; FDragging: Boolean; FLastPos: TPoint; FEnableArrangeCount: Integer; FArrangeControlActive: Boolean; FArrangeWidth: Integer; FArrangeHeight: Integer; FArrangeSettings: TJvArrangeSettings; FOnResizeParent: TJvPanelResizeParentEvent; FOnChangedWidth: TJvPanelChangedSizeEvent; FOnChangedHeight: TJvPanelChangedSizeEvent; FOnPaint: TNotifyEvent; FMovable: Boolean; FWasMoved: Boolean; FOnAfterMove: TNotifyEvent; FOnBeforeMove: TJvPanelMoveEvent; FHotTrack: Boolean; FHotTrackFont: TFont; FHotTrackFontOptions: TJvTrackFontOptions; FHotTrackOptions: TJvHotTrackOptions; FLastScreenCursor: TCursor; function GetArrangeSettings: TJvArrangeSettings; function GetHeight: Integer; procedure SetHeight(Value: Integer); function GetWidth: Integer; procedure SetWidth(Value: Integer); procedure SetArrangeSettings(const Value: TJvArrangeSettings); procedure SetTransparent(const Value: Boolean); procedure SetFlatBorder(const Value: Boolean); procedure SetFlatBorderColor(const Value: TColor); procedure SetMultiLine(const Value: Boolean); procedure SetSizeable(const Value: Boolean); {IJvHotTrack} //added by dejoy 2005-04-28 function GetHotTrack: Boolean; function GetHotTrackFont: TFont; function GetHotTrackFontOptions: TJvTrackFontOptions; function GetHotTrackOptions: TJvHotTrackOptions; procedure SetHotTrack(Value: Boolean); procedure SetHotTrackFont(Value: TFont); procedure SetHotTrackFontOptions(Value: TJvTrackFontOptions); procedure SetHotTrackOptions(Value: TJvHotTrackOptions); procedure IJvHotTrack_Assign(Source: IJvHotTrack); procedure IJvHotTrack.Assign = IJvHotTrack_Assign; protected procedure DrawCaption; dynamic; procedure DrawCaptionTo(ACanvas: TCanvas ); dynamic; procedure DrawBorders; dynamic; procedure MouseDown(Button: TMouseButton; Shift: TShiftState; X, Y: Integer); override; procedure MouseMove(Shift: TShiftState; X, Y: Integer); override; procedure MouseUp(Button: TMouseButton; Shift: TShiftState; X, Y: Integer); override; procedure MouseEnter(Control: TControl); override; procedure MouseLeave(Control: TControl); override; procedure ParentColorChanged; override; procedure TextChanged; override; procedure Paint; override; function DoEraseBackground(Canvas: TCanvas; Param: Integer): Boolean; override; procedure CreateParams(var Params: TCreateParams); override; procedure WMNCHitTest(var Msg: TWMNCHitTest); message WM_NCHITTEST; procedure WMExitSizeMove(var Msg: TMessage); message WM_EXITSIZEMOVE; function DoBeforeMove(X, Y: Integer): Boolean; dynamic; procedure DoAfterMove; dynamic; procedure Loaded; override; procedure Resize; override; procedure Rearrange; procedure DoArrangeSettingsPropertyChanged(Sender: TObject; const PropName: string); virtual; procedure AlignControls(AControl: TControl; var Rect: TRect); override; function GetNextControlByTabOrder(ATabOrder: Integer): TWinControl; procedure SetSizeableCursor; procedure RestoreSizeableCursor; public constructor Create(AOwner: TComponent); override; destructor Destroy; override; procedure SetBounds(ALeft, ATop, AWidth, AHeight: Integer); override; procedure ArrangeControls; procedure EnableArrange; procedure DisableArrange; function ArrangeEnabled: Boolean; property ArrangeWidth: Integer read FArrangeWidth; property ArrangeHeight: Integer read FArrangeHeight; property DockManager; property Canvas; property HotTrack: Boolean read GetHotTrack write SetHotTrack default False; property HotTrackFont: TFont read GetHotTrackFont write SetHotTrackFont; property HotTrackFontOptions: TJvTrackFontOptions read GetHotTrackFontOptions write SetHotTrackFontOptions default DefaultTrackFontOptions; property HotTrackOptions: TJvHotTrackOptions read GetHotTrackOptions write SetHotTrackOptions; property Movable: Boolean read FMovable write FMovable default False; property Sizeable: Boolean read FSizeable write SetSizeable default False; property Transparent: Boolean read FTransparent write SetTransparent default False; property MultiLine: Boolean read FMultiLine write SetMultiLine default False; //FlatBorder used the BorderWidth to draw the border property FlatBorder: Boolean read FFlatBorder write SetFlatBorder default False; property FlatBorderColor: TColor read FFlatBorderColor write SetFlatBorderColor default clBtnShadow; property OnBeforeMove: TJvPanelMoveEvent read FOnBeforeMove write FOnBeforeMove; property OnAfterMove: TNotifyEvent Read FOnAfterMove write FOnAfterMove; property OnPaint: TNotifyEvent read FOnPaint write FOnPaint; property ArrangeSettings: TJvArrangeSettings read GetArrangeSettings write SetArrangeSettings; property Width: Integer read GetWidth write SetWidth; property Height: Integer read GetHeight write SetHeight; property OnResizeParent: TJvPanelResizeParentEvent read FOnResizeParent write FOnResizeParent; property OnChangedWidth: TJvPanelChangedSizeEvent read FOnChangedWidth write FOnChangedWidth; property OnChangedHeight: TJvPanelChangedSizeEvent read FOnChangedHeight write FOnChangedHeight; end; TJvPanel = class(TJvCustomArrangePanel) private FFilerTag: string; procedure ReadData(Reader: TReader); protected procedure DefineProperties(Filer: TFiler); override; published property HotTrack; property HotTrackFont; property HotTrackFontOptions; property HotTrackOptions; property Movable; property Sizeable; property HintColor; property Transparent; property MultiLine; property FlatBorder; property FlatBorderColor; property OnMouseEnter; property OnMouseLeave; property OnBeforeMove; property OnAfterMove; property OnParentColorChange; property OnPaint; property ArrangeSettings; property Width; property Height; property OnResizeParent; property OnChangedWidth; property OnChangedHeight; property Align; property Alignment; property Anchors; property AutoSize; property BiDiMode; property UseDockManager default True; property DockSite; property DragCursor; property DragKind; property FullRepaint; property Locked; property ParentBiDiMode; property OnCanResize; property OnDockDrop; property OnDockOver; property OnEndDock; property OnGetSiteInfo; property OnStartDock; property OnUnDock; property BevelEdges; property BevelInner; property BevelOuter; property BevelWidth; property BorderWidth; property BorderStyle; property Caption; property Color; property Constraints; {$IFDEF DELPHI2009_UP} property DoubleBuffered; {$ENDIF DELPHI2009_UP} property DragMode; property Enabled; property Font; {$IFDEF DELPHI2006_UP} property Padding; {$ENDIF DELPHI2006_UP} {$IFDEF JVCLThemesEnabled} property ParentBackground default True; {$ENDIF JVCLThemesEnabled} property ParentColor; property ParentFont; property ParentShowHint; property PopupMenu; property ShowHint; property TabOrder; property TabStop; {$IFDEF DELPHI2010_UP} property Touch; {$ENDIF DELPHI2010_UP} property Visible; property OnClick; property OnConstrainedResize; property OnContextPopup; property OnDblClick; property OnDragDrop; property OnDragOver; property OnEndDrag; property OnEnter; property OnExit; property OnMouseDown; property OnMouseMove; property OnMouseUp; property OnResize; property OnStartDrag; end; {$IFDEF UNITVERSIONING} const UnitVersioning: TUnitVersionInfo = ( RCSfile: '$URL$'; Revision: '$Revision$'; Date: '$Date$'; LogPath: 'JVCL\run' ); {$ENDIF UNITVERSIONING} implementation uses Types, {$IFDEF COMPILER7_UP}Themes,{$ENDIF} JvJCLUtils, JvJVCLUtils, JvResources; const BkModeTransparent = TRANSPARENT; //=== { TJvArrangeSettings } ================================================= constructor TJvArrangeSettings.Create(AOwner: TPersistent); begin inherited Create(AOwner); FMaxWidth := 0; FBorderLeft := 0; FBorderTop := 0; FDistanceVertical := 0; FDistanceHorizontal := 0; FMaxControlsPerLine := 0; FWrapControls := True; FShowNotVisibleAtDesignTime := True; FAutoSize := asNone; AutoArrange := False; end; destructor TJvArrangeSettings.Destroy; begin if (Owner is TJvPanel) and not (csDestroying in TJvPanel(Owner).ComponentState) then begin // User code tried to destroy the TJvPanel.ArrangeSettings // objects leaving the panel in a broken state. Please fix your code by adding // // if not ((Components[I] is TJvArrangeSettings) or // (Components[I] is TJvPanelHotTrackOptions)) then // // or by using the Controls[] array property if possible. raise EJVCLException.CreateRes(@RsDestroyingArrangeSettingsNotAllowed); end; inherited Destroy; end; procedure TJvArrangeSettings.SetWrapControls(Value: Boolean); begin if Value <> FWrapControls then begin Changing; ChangingProperty('WrapControls'); FWrapControls := Value; ChangedProperty('WrapControls'); Changed; end; end; procedure TJvArrangeSettings.SetAutoArrange(Value: Boolean); begin if Value <> FAutoArrange then begin Changing; ChangingProperty('AutoArrange'); FAutoArrange := Value; ChangedProperty('AutoArrange'); Changed; end; end; procedure TJvArrangeSettings.SetAutoSize(Value: TJvAutoSizePanel); begin if Value <> FAutoSize then begin Changing; ChangingProperty('AutoSize'); FAutoSize := Value; ChangedProperty('AutoSize'); Changed; end; end; procedure TJvArrangeSettings.SetBorderLeft(Value: Integer); begin if Value <> FBorderLeft then begin Changing; ChangingProperty('BorderLeft'); FBorderLeft := Value; ChangedProperty('BorderLeft'); Changed; end; end; procedure TJvArrangeSettings.SetBorderTop(Value: Integer); begin if Value <> FBorderTop then begin Changing; ChangingProperty('BorderTop'); FBorderTop := Value; ChangedProperty('BorderTop'); Changed; end; end; procedure TJvArrangeSettings.SetMaxControlsPerLine(const Value: Integer); begin if Value <> FMaxControlsPerLine then begin Changing; ChangingProperty('MaxControlsPerLine'); FMaxControlsPerLine := Value; ChangedProperty('MaxControlsPerLine'); Changed; end; end; procedure TJvArrangeSettings.SetDistanceVertical(Value: Integer); begin if Value <> FDistanceVertical then begin Changing; ChangingProperty('DistanceVertical'); FDistanceVertical := Value; ChangedProperty('DistanceVertical'); Changed; end; end; procedure TJvArrangeSettings.SetHorizontalAlignment(const Value: TJvArrangeSettingsHAlignment); begin if Value <> FHorizontalAlignment then begin Changing; ChangingProperty('HorizontalAlignment'); FHorizontalAlignment := Value; ChangedProperty('HorizontalAlignment'); Changed; end; end; procedure TJvArrangeSettings.SetDistanceHorizontal(Value: Integer); begin if Value <> FDistanceHorizontal then begin Changing; ChangingProperty('DistanceHorizontal'); FDistanceHorizontal := Value; ChangedProperty('DistanceHorizontal'); Changed; end; end; procedure TJvArrangeSettings.SetMaxWidth(Value: Integer); begin if Value <> FMaxWidth then begin Changing; ChangingProperty('MaxWidth'); FMaxWidth := Value; ChangedProperty('MaxWidth'); Changed; end; end; procedure TJvArrangeSettings.SetHorizontalAlignLines(const Value: Boolean); begin if Value <> FHorizontalAlignLines then begin Changing; ChangingProperty('HorizontalAlignLines'); FHorizontalAlignLines := Value; ChangedProperty('HorizontalAlignLines'); Changed; end; end; procedure TJvArrangeSettings.SetVerticalAlignment(const Value: TJvArrangeSettingsVAlignment); begin if Value <> FVerticalAlignment then begin Changing; ChangingProperty('VerticalAlignment'); FVerticalAlignment := Value; ChangedProperty('VerticalAlignment'); Changed; end; end; procedure TJvArrangeSettings.Assign(Source: TPersistent); var A: TJvArrangeSettings; begin if Source is TJvArrangeSettings then begin BeginUpdate; try A := TJvArrangeSettings(Source); AutoArrange := A.AutoArrange; AutoSize := A.AutoSize; WrapControls := A.WrapControls; BorderLeft := A.BorderLeft; BorderTop := A.BorderTop; DistanceVertical := A.DistanceVertical; DistanceHorizontal := A.DistanceHorizontal; ShowNotVisibleAtDesignTime := A.ShowNotVisibleAtDesignTime; MaxWidth := A.MaxWidth; MaxControlsPerLine := A.MaxControlsPerLine; VerticalAlignment := A.VerticalAlignment; HorizontalAlignment := A.HorizontalAlignment; HorizontalAlignLines := A.HorizontalAlignLines; finally EndUpdate; end; end else inherited Assign(Source); end; //=== { TJvPanelHotTrackOptions } ============================================ constructor TJvPanelHotTrackOptions.Create(AOwner: TPersistent); begin inherited; Color := clBtnFace; end; //=== { TJvCustomArrangePanel } ============================================== constructor TJvCustomArrangePanel.Create(AOwner: TComponent); begin inherited Create(AOwner); IncludeThemeStyle(Self, [csNeedsBorderPaint, csParentBackground]); FMultiLine := False; FTransparent := False; FFlatBorder := False; FFlatBorderColor := clBtnShadow; FHotTrack := False; FHotTrackFont := TFont.Create; FHotTrackFontOptions := DefaultTrackFontOptions; FHotTrackOptions := TJvPanelHotTrackOptions.Create(Self); FArrangeSettings := TJvArrangeSettings.Create(Self); // "Self" is a must, otherwise the ObjectInspector has problems FArrangeSettings.OnChangedProperty := DoArrangeSettingsPropertyChanged; end; destructor TJvCustomArrangePanel.Destroy; begin inherited Destroy; FreeAndNil(FHotTrackFont); end; procedure TJvCustomArrangePanel.CreateParams(var Params: TCreateParams); begin inherited CreateParams(Params); if Transparent then begin Params.ExStyle := Params.ExStyle or WS_EX_TRANSPARENT; ControlStyle := ControlStyle - [csOpaque]; end else begin Params.ExStyle := Params.ExStyle and not WS_EX_TRANSPARENT; ControlStyle := ControlStyle + [csOpaque]; end; end; procedure TJvCustomArrangePanel.WMNCHitTest(var Msg: TWMNCHitTest); var P: TPoint; begin inherited; if not (csDesigning in ComponentState) and Movable then begin P := ScreenToClient(SmallPointToPoint(Msg.Pos)); if (P.X > 5) and (P.Y > 5) and (P.X < Width - 5) and (P.Y < Height - 5) and DoBeforeMove(P.X,P.Y) then begin Msg.Result := HTCAPTION; FWasMoved := True; end; end; end; procedure TJvCustomArrangePanel.WMExitSizeMove(var Msg: TMessage); begin inherited; if not (csDesigning in ComponentState) then begin if FWasMoved then DoAfterMove; FWasMoved := False; end; end; function TJvCustomArrangePanel.DoBeforeMove(X,Y: Integer): Boolean; begin Result := True; if Assigned(FOnBeforeMove) then FOnBeforeMove(Self, X, Y, Result); end; procedure TJvCustomArrangePanel.DoAfterMove; begin if Assigned(FOnAfterMove) then FOnAfterMove(Self); end; procedure TJvCustomArrangePanel.Paint; var X, Y: Integer; R: TRect; OldPenColor:TColor; OldPenWidth: Integer; begin if Assigned(FOnPaint) then begin FOnPaint(Self); Exit; end; if MouseOver and HotTrack then begin Canvas.Font := Self.HotTrackFont; if HotTrackOptions.Enabled then begin Canvas.Brush.Color := HotTrackOptions.Color; if HotTrackOptions.FrameVisible then begin Canvas.Brush.Style := bsSolid; OldPenColor := Canvas.Pen.Color; Canvas.Pen.Color := HotTrackOptions.FrameColor; Canvas.Rectangle(0, 0, Width, Height); Canvas.Pen.Color := OldPenColor; end else begin R := ClientRect; InflateRect(R, -BevelWidth, -BevelWidth); Canvas.FillRect(R); end; end; end else begin Canvas.Font := Self.Font; Canvas.Brush.Color := Color; if Transparent then Canvas.Brush.Style := bsClear else begin DrawThemedBackground(Self, Canvas, ClientRect); if FFlatBorder then begin if BorderWidth > 0 then begin OldPenWidth:= Canvas.Pen.Width; OldPenColor := Canvas.Pen.Color; Canvas.Pen.Width := BorderWidth; Canvas.Pen.Color := FFlatBorderColor; Canvas.Brush.Style := bsClear; R := ClientRect; X := (BorderWidth div 2); if Odd(BorderWidth) then Y := X else Y := X -1; Inc(R.Left,X); Inc(R.Top,X); Dec(R.Bottom,Y); Dec(R.Right,Y); Canvas.Rectangle(R); Canvas.Pen.Width := OldPenWidth; Canvas.Pen.Color := OldPenColor; end; end else DrawBorders; end end; DrawCaption; if Sizeable then begin {$IFDEF JVCLThemesEnabled} if ThemeServices.ThemesEnabled then ThemeServices.DrawElement(Canvas.Handle, ThemeServices.GetElementDetails(tsGripper), Rect(ClientWidth - GetSystemMetrics(SM_CXVSCROLL) - BevelWidth - 2, ClientHeight - GetSystemMetrics(SM_CYHSCROLL) - BevelWidth - 2, ClientWidth - BevelWidth - 2, ClientHeight - BevelWidth - 2)) else {$ENDIF JVCLThemesEnabled} begin Canvas.Font.Name := 'Marlett'; Canvas.Font.Charset := DEFAULT_CHARSET; Canvas.Font.Size := 12; Canvas.Font.Style := []; Canvas.Brush.Style := bsClear; X := ClientWidth - GetSystemMetrics(SM_CXVSCROLL) - BevelWidth - 2; Y := ClientHeight - GetSystemMetrics(SM_CYHSCROLL) - BevelWidth - 2; // (rom) bsClear takes care of that already //if Transparent then // SetBkMode(Handle, BkModeTransparent); Canvas.Font.Color := clBtnHighlight; Canvas.TextOut(X, Y, 'o'); Canvas.Font.Color := clBtnShadow; Canvas.TextOut(X, Y, 'p'); end; end; end; procedure TJvCustomArrangePanel.DrawBorders; var Rect: TRect; TopColor, BottomColor: TColor; procedure AdjustColors(Bevel: TPanelBevel); begin TopColor := clBtnHighlight; if Bevel = bvLowered then TopColor := clBtnShadow; BottomColor := clBtnShadow; if Bevel = bvLowered then BottomColor := clBtnHighlight; end; begin Rect := ClientRect; if BevelOuter <> bvNone then begin AdjustColors(BevelOuter); Frame3D(Canvas, Rect, TopColor, BottomColor, BevelWidth); end; Frame3D(Canvas, Rect, Color, Color, BorderWidth); if BevelInner <> bvNone then begin AdjustColors(BevelInner); Frame3D(Canvas, Rect, TopColor, BottomColor, BevelWidth); end; end; procedure TJvCustomArrangePanel.DrawCaption; begin DrawCaptionTo(Self.Canvas); end; procedure TJvCustomArrangePanel.DrawCaptionTo(ACanvas: TCanvas ); const Alignments: array [TAlignment] of Longint = (DT_LEFT, DT_RIGHT, DT_CENTER); WordWrap: array [Boolean] of Longint = (DT_SINGLELINE, DT_WORDBREAK); var ATextRect: TRect; BevelSize: Integer; Flags: Longint; begin with ACanvas do begin if Caption <> '' then begin if (MouseOver or FDragging) and HotTrack then ACanvas.Font := Self.HotTrackFont else ACanvas.Font := Self.Font; SetBkMode(Handle, BkModeTransparent); Font := Self.Font; ATextRect := GetClientRect; InflateRect(ATextRect, -BorderWidth, -BorderWidth); BevelSize := 0; if BevelOuter <> bvNone then Inc(BevelSize, BevelWidth); if BevelInner <> bvNone then Inc(BevelSize, BevelWidth); InflateRect(ATextRect, -BevelSize, -BevelSize); Flags := DT_EXPANDTABS or WordWrap[MultiLine] or Alignments[Alignment]; Flags := DrawTextBiDiModeFlags(Flags); //calculate required rectangle size DrawText(ACanvas.Handle, Caption, -1, ATextRect, Flags or DT_CALCRECT); // adjust the rectangle placement OffsetRect(ATextRect, 0, -ATextRect.Top + (Height - (ATextRect.Bottom - ATextRect.Top)) div 2); case Alignment of taRightJustify: OffsetRect(ATextRect, -ATextRect.Left + (Width - (ATextRect.Right - ATextRect.Left) - BorderWidth - BevelSize), 0); taCenter: OffsetRect(ATextRect, -ATextRect.Left + (Width - (ATextRect.Right - ATextRect.Left)) div 2, 0); end; if not Enabled then Font.Color := clGrayText; //draw text if Transparent then SetBkMode(ACanvas.Handle, BkModeTransparent); DrawText(ACanvas.Handle, Caption, -1, ATextRect, Flags); end; end; end; procedure TJvCustomArrangePanel.ParentColorChanged; begin Invalidate; inherited ParentColorChanged; end; procedure TJvCustomArrangePanel.MouseEnter(Control: TControl); var NeedRepaint: Boolean; OtherDragging:Boolean; begin if csDesigning in ComponentState then Exit; if not MouseOver and Enabled and (Control = nil) then begin OtherDragging := Mouse.IsDragging; NeedRepaint := not Transparent and ((FHotTrack and Enabled and not FDragging and not OtherDragging)); inherited MouseEnter(Control); // set MouseOver if NeedRepaint then Repaint; end else inherited MouseEnter(Control); end; procedure TJvCustomArrangePanel.MouseLeave(Control: TControl); var NeedRepaint: Boolean; OtherDragging:Boolean; begin if csDesigning in ComponentState then Exit; OtherDragging := Mouse.IsDragging; if MouseOver and Enabled and (Control = nil) then begin NeedRepaint := not Transparent and ((FHotTrack and (FDragging or (Enabled and not OtherDragging)))); inherited MouseLeave(Control); // set MouseOver if Sizeable then RestoreSizeableCursor;; if NeedRepaint then Repaint; end else inherited MouseLeave(Control); end; procedure TJvCustomArrangePanel.SetSizeableCursor; begin if Screen.Cursor <> crSizeNWSE then begin FLastScreenCursor := Screen.Cursor; Screen.Cursor := crSizeNWSE; end; end; procedure TJvCustomArrangePanel.RestoreSizeableCursor; begin if Screen.Cursor = crSizeNWSE then Screen.Cursor := FLastScreenCursor; end; procedure TJvCustomArrangePanel.SetTransparent(const Value: Boolean); begin if Value <> FTransparent then begin FTransparent := Value; RecreateWnd; end; end; procedure TJvCustomArrangePanel.SetFlatBorder(const Value: Boolean); begin if Value <> FFlatBorder then begin FFlatBorder := Value; Invalidate; end; end; procedure TJvCustomArrangePanel.SetFlatBorderColor(const Value: TColor); begin if Value <> FFlatBorderColor then begin FFlatBorderColor := Value; Invalidate; end; end; function TJvCustomArrangePanel.DoEraseBackground(Canvas: TCanvas; Param: Integer): Boolean; begin // Mantis 3624: Draw our parent's image first if we are transparent. // This might not seem useful at first as we have removed the csOpaque // from our style and the API is doing the drawing just fine. But this // is required for other transparent controls placed on us. This way, // they call us with their own canvas into which we draw what we are // placed on. This way, there is an automatic chain of transparency up // to the controls at the bottom that are not transparent. if Transparent then begin CopyParentImage(Self, Canvas); Result := True; end else Result := inherited DoEraseBackground(Canvas, Param); end; procedure TJvCustomArrangePanel.SetMultiLine(const Value: Boolean); begin if FMultiLine <> Value then begin FMultiLine := Value; Invalidate; end; end; procedure TJvCustomArrangePanel.TextChanged; begin inherited TextChanged; Invalidate; end; procedure TJvCustomArrangePanel.SetSizeable(const Value: Boolean); begin if FSizeable <> Value then begin FSizeable := Value; Invalidate; end; end; procedure TJvCustomArrangePanel.MouseDown(Button: TMouseButton; Shift: TShiftState; X, Y: Integer); begin if Sizeable and (Button = mbLeft) and ((Width - X) < 12) and ((Height - Y) < 12) then begin FDragging := True; FLastPos := Point(X, Y); MouseCapture := True; SetSizeableCursor; end else inherited MouseDown(Button, Shift, X, Y); end; procedure TJvCustomArrangePanel.MouseMove(Shift: TShiftState; X, Y: Integer); var R: TRect; X1, Y1: Integer; Changed : Boolean; begin if FDragging and Sizeable then begin R := BoundsRect; X1 := R.Right - R.Left + X - FLastPos.X; Y1 := R.Bottom - R.Top + Y - FLastPos.Y; if (X1 > 1) and (Y1 > 1) then begin if (Constraints.MinWidth > 0) and (X1 < Constraints.MinWidth) then X1 := Constraints.MinWidth; if (Constraints.MinHeight > 0) and (Y1 < Constraints.MinHeight) then Y1 := Constraints.MinHeight; if (Constraints.MaxWidth > 0) and (X1 > Constraints.MaxWidth) then X1 := Constraints.MaxWidth; if (Constraints.MaxHeight > 0) and (Y1 > Constraints.MaxHeight) then Y1 := Constraints.MaxHeight; Changed := False; if (X1 >= 0) and (X1 <> Width) then begin FLastPos.X := X; Changed:= True; end; if (Y1 >= 0) and (Y1 <> Height) then begin FLastPos.Y := Y; Changed := True; end; if Changed then begin SetBounds(Left, Top, X1, Y1); Refresh; end; end; end else inherited MouseMove(Shift, X, Y); if Sizeable then begin if ((Width - X) < 12) and ((Height - Y) < 12) then SetSizeableCursor else RestoreSizeableCursor; end; end; procedure TJvCustomArrangePanel.MouseUp(Button: TMouseButton; Shift: TShiftState; X, Y: Integer); begin if FDragging and Sizeable then begin FDragging := False; MouseCapture := False; RestoreSizeableCursor; Refresh; end else inherited MouseUp(Button, Shift, X, Y); end; procedure TJvCustomArrangePanel.SetBounds(ALeft, ATop, AWidth, AHeight: Integer); begin inherited SetBounds(ALeft, ATop, AWidth, AHeight); if Transparent then Invalidate; end; procedure TJvCustomArrangePanel.Resize; begin if Assigned(FArrangeSettings) then // (asn) if FArrangeSettings.AutoArrange then ArrangeControls; inherited Resize; end; procedure TJvCustomArrangePanel.EnableArrange; begin EnableAlign; if FEnableArrangeCount > 0 then Dec(FEnableArrangeCount); end; procedure TJvCustomArrangePanel.DisableArrange; begin Inc(FEnableArrangeCount); DisableAlign; end; function TJvCustomArrangePanel.ArrangeEnabled: Boolean; begin Result := FEnableArrangeCount <= 0; end; procedure TJvCustomArrangePanel.Loaded; begin inherited Loaded; if FArrangeSettings.AutoArrange then ArrangeControls; end; procedure TJvCustomArrangePanel.AlignControls(AControl: TControl; var Rect: TRect); begin inherited AlignControls(AControl, Rect); if FArrangeSettings.AutoArrange then ArrangeControls; end; function TJvCustomArrangePanel.GetNextControlByTabOrder(ATabOrder: Integer): TWinControl; var I: Integer; begin Result := nil; for I := 0 to ControlCount - 1 do if Controls[I] is TWinControl then if TWinControl(Controls[I]).TabOrder = ATabOrder then begin Result := TWinControl(Controls[I]); Break; end; end; procedure TJvCustomArrangePanel.ArrangeControls; type TControlRect = record Control: TControl; BoundsRect: TRect; LineBreak: Boolean; end; var AktX, AktY, NewX, NewY, MaxY, NewMaxX: Integer; ControlMaxX, ControlMaxY: Integer; TmpWidth, TmpHeight: Integer; LastTabOrder: Integer; CurrControl: TWinControl; I: Integer; OldHeight, OldWidth: Integer; OffsetX, OffsetY: Integer; NumControlsPerLine: Integer; ControlRects: array of TControlRect; LineOffsets: array of Integer; LineCount, Len: Integer; ArrS: TJvArrangeSettings; begin if not ArrangeEnabled or FArrangeControlActive or (ControlCount = 0) or ([csLoading, csReading] * ComponentState <> []) then Exit; FArrangeWidth := 0; FArrangeHeight := 0; FArrangeControlActive := True; ArrS := FArrangeSettings; try OldHeight := Height; OldWidth := Width; TmpHeight := Height; TmpWidth := Width; AktY := ArrS.BorderTop; AktX := ArrS.BorderLeft; LastTabOrder := -1; MaxY := -1; if (ArrS.AutoSize in [asWidth, asBoth]) then ControlMaxX := TmpWidth - 2 * ArrS.BorderLeft else ControlMaxX := -1; if (ArrS.AutoSize in [asHeight, asBoth]) then ControlMaxY := TmpHeight - 2 * ArrS.BorderTop else ControlMaxY := -1; SetLength(ControlRects, ControlCount); for I := 0 to ControlCount - 1 do if Controls[I] is TWinControl then begin if Controls[I] is TJvCustomArrangePanel then TJvCustomArrangePanel(Controls[I]).Rearrange; if (Controls[I].Width + 2 * ArrS.BorderLeft > TmpWidth) then TmpWidth := Controls[I].Width + 2 * ArrS.BorderLeft; end; if (TmpWidth > ArrS.MaxWidth) and (ArrS.MaxWidth > 0) then TmpWidth := ArrS.MaxWidth; CurrControl := GetNextControlByTabOrder(LastTabOrder + 1); I := 0; NumControlsPerLine := 0; LineCount := 0; while Assigned(CurrControl) do begin LastTabOrder := CurrControl.TabOrder; ControlRects[I].Control := nil; ControlRects[I].LineBreak := False; if CurrControl.Visible or ((csDesigning in ComponentState) and ArrS.ShowNotVisibleAtDesignTime) then begin NewMaxX := AktX + CurrControl.Width + ArrS.DistanceHorizontal + ArrS.BorderLeft; if ((ArrS.MaxControlsPerLine > 0) and (NumControlsPerLine >= ArrS.MaxControlsPerLine)) or ((((NewMaxX > TmpWidth) and not (ArrS.AutoSize in [asWidth, asBoth])) or ((NewMaxX > ArrS.MaxWidth) and (ArrS.MaxWidth > 0))) and (AktX > ArrS.BorderLeft) and // Only Valid if there is one control in the current line ArrS.WrapControls) then begin AktX := ArrS.BorderLeft; AktY := AktY + MaxY + ArrS.DistanceVertical; MaxY := -1; NewX := AktX; NewY := AktY; NumControlsPerLine := 1; ControlRects[I].LineBreak := True; Inc(LineCount); end else begin NewX := AktX; NewY := AktY; Inc(NumControlsPerLine); end; AktX := AktX + CurrControl.Width; if AktX > ControlMaxX then ControlMaxX := AktX; AktX := AktX + ArrS.DistanceHorizontal; ControlRects[I].Control := CurrControl; ControlRects[I].BoundsRect := Rect(NewX, NewY, NewX + CurrControl.Width, NewY + CurrControl.Height); if CurrControl.Height > MaxY then MaxY := CurrControl.Height; ControlMaxY := AktY + MaxY; end; CurrControl := GetNextControlByTabOrder(LastTabOrder + 1); Inc(I); end; if (Length(ControlRects) > 0) and not ControlRects[High(ControlRects)].LineBreak then Inc(LineCount); { Vertical/Horizontal alignment } OffsetX := 0; OffsetY := 0; if not (ArrS.AutoSize in [asBoth, asHeight]) then case ArrS.VerticalAlignment of asVCenter: OffsetY := (ClientHeight - ControlMaxY) div 2; asBottom: OffsetY := ClientHeight - ControlMaxY; end; if not (ArrS.AutoSize in [asBoth, asWidth]) then case ArrS.HorizontalAlignment of asCenter: OffsetX := (ClientWidth - ControlMaxX) div 2; asRight: OffsetX := ClientWidth - ControlMaxX; end; { Calculate the horizontal line alignment } if Arrs.HorizontalAlignLines then begin SetLength(LineOffsets, LineCount); Len := Length(ControlRects); I := 0; LineCount := 0; while I < Len do begin { Skip unused slots } while (I < Len) and (ControlRects[I].Control = nil) do Inc(I); if I < Len then begin LineOffsets[LineCount] := ControlRects[I].BoundsRect.Left; { Find last control in the line } while (I + 1 < Len) and not ControlRects[I + 1].LineBreak do Inc(I); LineOffsets[LineCount] := (ControlMaxX - (ControlRects[I].BoundsRect.Right - LineOffsets[LineCount])) div 2; Inc(LineCount); end; Inc(I); end; end; { Apply the new BoundRects to the controls } LineCount := 0; for I := 0 to High(ControlRects) do begin if ControlRects[I].Control <> nil then begin OffsetRect(ControlRects[I].BoundsRect, OffsetX, OffsetY); if ArrS.HorizontalAlignLines then begin if ControlRects[I].LineBreak then Inc(LineCount); OffsetRect(ControlRects[I].BoundsRect, LineOffsets[LineCount], 0); end; ControlRects[I].Control.BoundsRect := ControlRects[I].BoundsRect; end; end; { Adjust panel bounds } if not (csLoading in ComponentState) then begin if ArrS.AutoSize in [asWidth, asBoth] then if ControlMaxX >= 0 then if (ArrS.MaxWidth > 0) and (ControlMaxX >= ArrS.MaxWidth) then TmpWidth := ArrS.MaxWidth else TmpWidth := ControlMaxX + ArrS.BorderLeft else TmpWidth := 0; if ArrS.AutoSize in [asHeight, asBoth] then if ControlMaxY >= 0 then TmpHeight := ControlMaxY + ArrS.BorderTop else TmpHeight := 0; Width := TmpWidth; Height := TmpHeight; end; FArrangeWidth := ControlMaxX + 2 * ArrS.BorderLeft; FArrangeHeight := ControlMaxY + 2 * ArrS.BorderTop; if (OldWidth <> TmpWidth) or (OldHeight <> Height) then UpdateWindow(GetFocus); //SendMessage(GetFocus, WM_PAINT, 0, 0); finally FArrangeControlActive := False; end; end; procedure TJvCustomArrangePanel.SetWidth(Value: Integer); var Changed: Boolean; begin Changed := inherited Width <> Value; inherited Width := Value; if Changed then begin if Assigned(FOnChangedWidth) then FOnChangedWidth (Self, Value); if Assigned(FOnResizeParent) then FOnResizeParent(Self, Left, Top, Value, Height) else if Parent is TJvCustomArrangePanel then TJvCustomArrangePanel(Parent).Rearrange; end; end; function TJvCustomArrangePanel.GetWidth: Integer; begin Result := inherited Width; end; procedure TJvCustomArrangePanel.SetHeight(Value: Integer); var Changed: Boolean; begin Changed := inherited Height <> Value; inherited Height := Value; if Changed then begin if Assigned(FOnChangedHeight) then FOnChangedHeight (Self, Value); if Assigned(FOnResizeParent) then FOnResizeParent(Self, Left, Top, Width, Value) else if Parent is TJvCustomArrangePanel then TJvCustomArrangePanel(Parent).Rearrange; end; end; function TJvCustomArrangePanel.GetHeight: Integer; begin Result := inherited Height; end; procedure TJvCustomArrangePanel.SetArrangeSettings(const Value: TJvArrangeSettings); begin if (Value <> nil) and (Value <> FArrangeSettings) then FArrangeSettings.Assign(Value); end; function TJvCustomArrangePanel.GetHotTrack: Boolean; begin Result := FHotTrack; end; function TJvCustomArrangePanel.GetHotTrackFont: TFont; begin Result := FHotTrackFont; end; function TJvCustomArrangePanel.GetHotTrackFontOptions: TJvTrackFontOptions; begin Result := FHotTrackFontOptions; end; function TJvCustomArrangePanel.GetHotTrackOptions: TJvHotTrackOptions; begin Result := FHotTrackOptions; end; procedure TJvCustomArrangePanel.SetHotTrack(Value: Boolean); begin FHotTrack := Value; end; procedure TJvCustomArrangePanel.SetHotTrackFont(Value: TFont); begin if (FHotTrackFont<>Value) and (Value <> nil) then FHotTrackFont.Assign(Value); end; procedure TJvCustomArrangePanel.SetHotTrackFontOptions(Value: TJvTrackFontOptions); begin if FHotTrackFontOptions <> Value then begin FHotTrackFontOptions := Value; UpdateTrackFont(HotTrackFont, Font, FHotTrackFontOptions); end; end; procedure TJvCustomArrangePanel.SetHotTrackOptions(Value: TJvHotTrackOptions); begin if (FHotTrackOptions <> Value) and (Value <> nil) then FHotTrackOptions.Assign(Value); end; procedure TJvCustomArrangePanel.IJvHotTrack_Assign( Source: IJvHotTrack); begin if (Source <> nil) and (IJvHotTrack(Self) <> Source) then begin HotTrack := Source.HotTrack; HotTrackFont :=Source.HotTrackFont; HotTrackFontOptions := Source.HotTrackFontOptions; HotTrackOptions := Source.HotTrackOptions; end; end; procedure TJvCustomArrangePanel.Rearrange; begin if FArrangeSettings.AutoArrange and not (csLoading in ComponentState) then ArrangeControls; end; procedure TJvCustomArrangePanel.DoArrangeSettingsPropertyChanged(Sender: TObject; const PropName: string); begin if SameText(PropName, 'AutoArrange') then begin if ArrangeSettings.AutoArrange then Rearrange; end else if SameText(PropName, 'AutoSize') then begin if ArrangeSettings.AutoSize <> asNone then Rearrange; end else //otherwise call Rearrange Rearrange; end; function TJvCustomArrangePanel.GetArrangeSettings: TJvArrangeSettings; begin Result := fArrangeSettings; end; { TJvPanel } procedure TJvPanel.DefineProperties(Filer: TFiler); begin inherited DefineProperties(Filer); { For backward compatibility } FFilerTag := 'HotColor'; Filer.DefineProperty(FFilerTag, ReadData, nil, False); end; procedure TJvPanel.ReadData(Reader: TReader); var C: Integer; begin if SameText(FFilerTag, 'HotColor') then begin if Reader.NextValue = vaIdent then begin if IdentToColor(Reader.ReadIdent, C) then HotTrackOptions.Color := C; end else HotTrackOptions.Color := Reader.ReadInteger; end; end; {$IFDEF UNITVERSIONING} initialization RegisterUnitVersion(HInstance, UnitVersioning); finalization UnregisterUnitVersion(HInstance); {$ENDIF UNITVERSIONING} end.