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bcbasectrls.pas
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bcbasectrls.pas
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// SPDX-License-Identifier: LGPL-3.0-linking-exception
{ Base framework classes
originally written in 2012 by Krzysztof Dibowski dibowski at interia.pl
}
{******************************* CONTRIBUTOR(S) ******************************
- Edivando S. Santos Brasil | mailedivando@gmail.com
(Compatibility with delphi VCL 11/2018)
***************************** END CONTRIBUTOR(S) *****************************}
unit BCBaseCtrls;
{$I bgracontrols.inc}
interface
uses
Classes, SysUtils, Controls, ExtCtrls, Graphics,
{$IFNDEF FPC}Windows, Messages, BGRAGraphics, GraphType, FPImage, {$ELSE} LCLType,{$ENDIF}
BGRABitmap, BGRABitmapTypes;
type
{$IFNDEF FPC}
TSpacingSize = Integer;
TControlCellAlign = (
ccaFill,
ccaLeftTop,
ccaRightBottom,
ccaCenter
);
TControlCellAligns = set of TControlCellAlign;
TControlBorderSpacingDefault = record
Left: TSpacingSize;
Top: TSpacingSize;
Right: TSpacingSize;
Bottom: TSpacingSize;
Around: TSpacingSize;
end;
PControlBorderSpacingDefault = ^TControlBorderSpacingDefault;
TBGRAGraphicCtrl = class;
TBGRACustomCtrl = class;
TControlBorderSpacing = class;
ILCLControl = interface
['{97A3D274-C4BD-4095-9B23-8E50D6E0EA24}']
procedure DoOnResize;
procedure CalculatePreferredSize(var PreferredWidth, PreferredHeight: integer;{%H-}WithThemeSpace: boolean);
procedure MouseEnter;
procedure MouseLeave;
procedure TextChanged;
procedure FontChanged(Sender: TObject);
procedure RealSetText(const Value: TCaption);
procedure Resize;
procedure SetColor(Value: TColor);
function GetColor : TColor;
function ColorIsStored: boolean;
function RealGetText: TCaption;
function CreateControlBorderSpacing: TControlBorderSpacing;
procedure SetBorderSpacing(const AValue: TControlBorderSpacing);
procedure SetInitialBounds(aLeft, aTop, aWidth, aHeight: integer);
procedure InvalidatePreferredSize;
procedure EnableAutoSizing;
procedure DoBorderSpacingChange(Sender: TObject; InnerSpaceChanged: Boolean);
function GetInstance : TObject;
function IsInnerBorderStored: boolean;
end;
TControlBorderSpacing = class(TPersistent)
private
FAround: TSpacingSize;
FBottom: TSpacingSize;
FCellAlignHorizontal: TControlCellAlign;
FCellAlignVertical: TControlCellAlign;
FControl: ILCLControl;
FInnerBorder: Integer;
FLeft: TSpacingSize;
FOnChange: TNotifyEvent;
FRight: TSpacingSize;
FTop: TSpacingSize;
FDefault: PControlBorderSpacingDefault;
function GetAroundBottom: Integer;
function GetAroundLeft: Integer;
function GetAroundRight: Integer;
function GetAroundTop: Integer;
function GetControlBottom: Integer;
function GetControlHeight: Integer;
function GetControlLeft: Integer;
function GetControlRight: Integer;
function GetControlTop: Integer;
function GetControlWidth: Integer;
function IsAroundStored: boolean;
function IsBottomStored: boolean;
function IsInnerBorderStored: boolean;
function IsLeftStored: boolean;
function IsRightStored: boolean;
function IsTopStored: boolean;
procedure SetAround(const AValue: TSpacingSize);
procedure SetBottom(const AValue: TSpacingSize);
procedure SetCellAlignHorizontal(const AValue: TControlCellAlign);
procedure SetCellAlignVertical(const AValue: TControlCellAlign);
procedure SetInnerBorder(const AValue: Integer);
procedure SetLeft(const AValue: TSpacingSize);
procedure SetRight(const AValue: TSpacingSize);
procedure SetSpace(Kind: TAnchorKind; const AValue: integer);
procedure SetTop(const AValue: TSpacingSize);
protected
procedure Change(InnerSpaceChanged: Boolean); virtual;
public
constructor Create(OwnerControl: ILCLControl; ADefault: PControlBorderSpacingDefault = nil);
procedure Assign(Source: TPersistent); override;
procedure AssignTo(Dest: TPersistent); override;
function IsEqual(Spacing: TControlBorderSpacing): boolean;
procedure GetSpaceAround(var SpaceAround: TRect); virtual;
function GetSideSpace(Kind: TAnchorKind): Integer; // Around+GetSpace
function GetSpace(Kind: TAnchorKind): Integer; virtual;
procedure AutoAdjustLayout(const AXProportion, AYProportion: Double);
public
property Control: ILCLControl read FControl;
property Space[Kind: TAnchorKind]: integer read GetSpace write SetSpace;
property AroundLeft: Integer read GetAroundLeft;
property AroundTop: Integer read GetAroundTop;
property AroundRight: Integer read GetAroundRight;
property AroundBottom: Integer read GetAroundBottom;
property ControlLeft: Integer read GetControlLeft;
property ControlTop: Integer read GetControlTop;
property ControlWidth: Integer read GetControlWidth;
property ControlHeight: Integer read GetControlHeight;
property ControlRight: Integer read GetControlRight;
property ControlBottom: Integer read GetControlBottom;
published
property OnChange: TNotifyEvent read FOnChange write FOnChange;
property Left: TSpacingSize read FLeft write SetLeft stored IsLeftStored;
property Top: TSpacingSize read FTop write SetTop stored IsTopStored;
property Right: TSpacingSize read FRight write SetRight stored IsRightStored;
property Bottom: TSpacingSize read FBottom write SetBottom stored IsBottomStored;
property Around: TSpacingSize read FAround write SetAround stored IsAroundStored;
property InnerBorder: Integer read FInnerBorder write SetInnerBorder stored IsInnerBorderStored default 0;
property CellAlignHorizontal: TControlCellAlign read FCellAlignHorizontal write SetCellAlignHorizontal default ccaFill;
property CellAlignVertical: TControlCellAlign read FCellAlignVertical write SetCellAlignVertical default ccaFill;
end;
TChildControlResizeStyle = (
crsAnchorAligning, // (like Delphi)
crsScaleChilds, // scale children equally, keep space between children fixed
crsHomogenousChildResize, // enlarge children equally (i.e. by the same amount of pixel)
crsHomogenousSpaceResize // enlarge space between children equally
{$IFDEF EnablecrsSameSize}
,crsSameSize // each child gets the same size (maybe one pixel difference)
{$ENDIF}
);
TControlChildrenLayout = (
cclNone,
cclLeftToRightThenTopToBottom, // if BiDiMode <> bdLeftToRight then it becomes RightToLeft
cclTopToBottomThenLeftToRight
);
TControlChildSizing = class(TPersistent)
private
FControl: ILCLControl;
FControlsPerLine: integer;
FEnlargeHorizontal: TChildControlResizeStyle;
FEnlargeVertical: TChildControlResizeStyle;
FHorizontalSpacing: integer;
FLayout: TControlChildrenLayout;
FLeftRightSpacing: integer;
FOnChange: TNotifyEvent;
FShrinkHorizontal: TChildControlResizeStyle;
FShrinkVertical: TChildControlResizeStyle;
FTopBottomSpacing: integer;
FVerticalSpacing: integer;
procedure SetControlsPerLine(const AValue: integer);
procedure SetEnlargeHorizontal(const AValue: TChildControlResizeStyle);
procedure SetEnlargeVertical(const AValue: TChildControlResizeStyle);
procedure SetHorizontalSpacing(const AValue: integer);
procedure SetLayout(const AValue: TControlChildrenLayout);
procedure SetLeftRightSpacing(const AValue: integer);
procedure SetShrinkHorizontal(const AValue: TChildControlResizeStyle);
procedure SetShrinkVertical(const AValue: TChildControlResizeStyle);
procedure SetTopBottomSpacing(const AValue: integer);
procedure SetVerticalSpacing(const AValue: integer);
protected
procedure Change; virtual;
public
constructor Create(OwnerControl: ILCLControl);
procedure Assign(Source: TPersistent); override;
procedure AssignTo(Dest: TPersistent); override;
function IsEqual(Sizing: TControlChildSizing): boolean;
procedure SetGridSpacing(Spacing: integer);
public
property Control: ILCLControl read FControl;
property OnChange: TNotifyEvent read FOnChange write FOnChange;
published
property LeftRightSpacing: integer read FLeftRightSpacing write SetLeftRightSpacing default 0;
property TopBottomSpacing: integer read FTopBottomSpacing write SetTopBottomSpacing default 0;
property HorizontalSpacing: integer read FHorizontalSpacing write SetHorizontalSpacing default 0;
property VerticalSpacing: integer read FVerticalSpacing write SetVerticalSpacing default 0;
property EnlargeHorizontal: TChildControlResizeStyle read FEnlargeHorizontal
write SetEnlargeHorizontal default crsAnchorAligning;
property EnlargeVertical: TChildControlResizeStyle read FEnlargeVertical
write SetEnlargeVertical default crsAnchorAligning;
property ShrinkHorizontal: TChildControlResizeStyle read FShrinkHorizontal
write SetShrinkHorizontal default crsAnchorAligning;
property ShrinkVertical: TChildControlResizeStyle read FShrinkVertical
write SetShrinkVertical default crsAnchorAligning;
property Layout: TControlChildrenLayout read FLayout write SetLayout default cclNone;
property ControlsPerLine: integer read FControlsPerLine write SetControlsPerLine default 0;
end;
{$ENDIF}
{$IFDEF FPC}
TBGRAGraphicCtrl = class(TGraphicControl)
{$ELSE}
TBGRAGraphicCtrl = class(TGraphicControl, ILCLControl)
protected
FBorderSpacing: TControlBorderSpacing;
FOnChange: TNotifyEvent;
FMouseInClient: boolean;
procedure DoOnResize; virtual;
procedure CalculatePreferredSize(var PreferredWidth, PreferredHeight: integer;{%H-}WithThemeSpace: boolean); virtual;
procedure MouseEnter; virtual;
procedure MouseLeave; virtual;
procedure TextChanged; virtual;
procedure FontChanged(Sender: TObject); virtual;
procedure RealSetText(const Value: TCaption); virtual;
procedure Resize; override;
class function GetControlClassDefaultSize: TSize; virtual;
procedure SetColor(Value: TColor); virtual;
function GetColor : TColor;
procedure CMMouseEnter(var Message :TMessage); message CM_MOUSEENTER;
procedure CMMouseLeave(var Message :TMessage); message CM_MOUSELEAVE;
procedure CMTextChanged(var Message: TMessage); message CM_TEXTCHANGED;
function ColorIsStored: boolean; virtual;
function RealGetText: TCaption; virtual;
function CreateControlBorderSpacing: TControlBorderSpacing; virtual;
procedure SetBorderSpacing(const AValue: TControlBorderSpacing);
procedure DoBorderSpacingChange(Sender: TObject; InnerSpaceChanged: Boolean); virtual;
function GetInstance : TObject;
function IsInnerBorderStored: boolean;
public
constructor Create(TheOwner: TComponent);override;
destructor Destroy;override;
procedure SetInitialBounds(aLeft, aTop, aWidth, aHeight: integer); virtual;
procedure InvalidatePreferredSize; virtual;
procedure EnableAutoSizing;
property Color: TColor read GetColor write SetColor stored ColorIsStored default clWindow;
property BorderSpacing: TControlBorderSpacing read FBorderSpacing write SetBorderSpacing;
property Caption;
property Canvas;
{$ENDIF}
end;
{$IFDEF FPC}
TBGRACustomCtrl = class(TCustomControl)
{$ELSE}
TBGRACustomCtrl = class(TCustomControl, ILCLControl)
protected
FBorderSpacing: TControlBorderSpacing;
FChildSizing: TControlChildSizing;
FOnChange: TNotifyEvent;
FMouseInClient: boolean;
procedure CalculatePreferredSize(var PreferredWidth, PreferredHeight: integer;{%H-}WithThemeSpace: boolean); {$IFDEF FPC}override;{$ELSE}virtual;{$ENDIF}
procedure DoOnResize; virtual;
procedure MouseEnter; virtual;
procedure MouseLeave; virtual;
procedure TextChanged; virtual;
procedure FontChanged(Sender: TObject); virtual;
function GetDefaultDockCaption: String; virtual;
procedure RealSetText(const Value: TCaption); virtual;
procedure EnabledChanged; virtual;
procedure Resize; override;
class function GetControlClassDefaultSize: TSize; virtual;
procedure SetColor(Value: TColor); virtual;
function GetColor : TColor;
procedure UTF8KeyPress(var UTF8Key: {$IFDEF FPC}TUTF8Char{$ELSE}String{$ENDIF}); virtual;
procedure CMMouseEnter(var Message :TMessage); message CM_MOUSEENTER;
procedure CMMouseLeave(var Message :TMessage); message CM_MOUSELEAVE;
procedure CMTextChanged(var Message: TMessage); message CM_TEXTCHANGED;
function ColorIsStored: boolean; virtual;
function RealGetText: TCaption; virtual;
function CreateControlBorderSpacing: TControlBorderSpacing; virtual;
procedure SetBorderSpacing(const AValue: TControlBorderSpacing);
procedure DoBorderSpacingChange(Sender: TObject; InnerSpaceChanged: Boolean); virtual;
function GetInstance : TObject;
function IsInnerBorderStored: boolean;
procedure SetChildSizing(const AValue: TControlChildSizing);
procedure DoChildSizingChange(Sender: TObject); virtual;
public
constructor Create(TheOwner: TComponent);override;
destructor Destroy;override;
procedure SetInitialBounds(aLeft, aTop, aWidth, aHeight: integer); virtual;
procedure InvalidatePreferredSize; virtual;
procedure EnableAutoSizing;
property Color: TColor read GetColor write SetColor stored ColorIsStored default clWindow;
property BorderSpacing: TControlBorderSpacing read FBorderSpacing write SetBorderSpacing;
property ChildSizing: TControlChildSizing read FChildSizing write SetChildSizing;
property Caption;
property Canvas;
{$ENDIF}
end;
{$IFDEF FPC}
TBGRACustomPanel = class(TCustomPanel)
{$ELSE}
TBGRACustomPanel = class(TCustomPanel, ILCLControl)
protected
FBorderSpacing: TControlBorderSpacing;
FChildSizing: TControlChildSizing;
FOnChange: TNotifyEvent;
FMouseInClient: boolean;
procedure CalculatePreferredSize(var PreferredWidth, PreferredHeight: integer;{%H-}WithThemeSpace: boolean); {$IFDEF FPC}override;{$ELSE}virtual;{$ENDIF}
procedure DoOnResize; virtual;
procedure MouseEnter; virtual;
procedure MouseLeave; virtual;
procedure TextChanged; virtual;
procedure FontChanged(Sender: TObject); virtual;
function GetDefaultDockCaption: String; virtual;
procedure RealSetText(const Value: TCaption); virtual;
procedure EnabledChanged; virtual;
procedure Resize; override;
class function GetControlClassDefaultSize: TSize; virtual;
procedure SetColor(Value: TColor); virtual;
function GetColor : TColor;
procedure UTF8KeyPress(var UTF8Key: {$IFDEF FPC}TUTF8Char{$ELSE}String{$ENDIF}); virtual;
procedure CMMouseEnter(var Message :TMessage); message CM_MOUSEENTER;
procedure CMMouseLeave(var Message :TMessage); message CM_MOUSELEAVE;
procedure CMTextChanged(var Message: TMessage); message CM_TEXTCHANGED;
function ColorIsStored: boolean; virtual;
function RealGetText: TCaption; virtual;
function CreateControlBorderSpacing: TControlBorderSpacing; virtual;
procedure SetBorderSpacing(const AValue: TControlBorderSpacing);
procedure DoBorderSpacingChange(Sender: TObject; InnerSpaceChanged: Boolean); virtual;
function GetInstance : TObject;
function IsInnerBorderStored: boolean;
procedure SetChildSizing(const AValue: TControlChildSizing);
procedure DoChildSizingChange(Sender: TObject); virtual;
public
constructor Create(TheOwner: TComponent);override;
destructor Destroy;override;
procedure SetInitialBounds(aLeft, aTop, aWidth, aHeight: integer); virtual;
procedure InvalidatePreferredSize; virtual;
procedure EnableAutoSizing;
property Color: TColor read GetColor write SetColor stored ColorIsStored default clWindow;
property BorderSpacing: TControlBorderSpacing read FBorderSpacing write SetBorderSpacing;
property ChildSizing: TControlChildSizing read FChildSizing write SetChildSizing;
property Canvas;
{$ENDIF}
end;
TOnBCPropertyChange = procedure(ASender: TObject; AData: PtrInt) of object;
{ TBCProperty
Base BC Property with OnChange event support
}
TBCProperty = class(TPersistent)
private
FOnChange: TOnBCPropertyChange;
protected
FControl: TControl;
procedure Change(AData: PtrInt = 0); virtual;
public
constructor Create(AControl: TControl); virtual;
public
property Control: TControl read FControl;
property OnChange: TOnBCPropertyChange read FOnChange write FOnChange;
end;
{ TBGRABitmapEx
Some BGRABitmap descendant which can store custom data and has NeedRender flag
}
TBGRABitmapEx = class(TBGRABitmap)
private
FCustomData: PtrInt;
FNeedRender: Boolean;
protected
procedure Init; override;
public
property NeedRender: Boolean read FNeedRender write FNeedRender;
property CustomData: PtrInt read FCustomData write FCustomData;
procedure Discard;
end;
{ TBCGraphicControl
BC graphic control with some basic functionality like begin/end update and
debug functions
}
TBCGraphicControl = class(TBGRAGraphicCtrl)
private
{$IFDEF INDEBUG}
FPaintCount: Integer;
{$ENDIF}
FUpdateCount: Integer;
protected
procedure DoOnResize; override;
protected
{$IFDEF INDEBUG}
function GetDebugText: String; virtual;
{$ENDIF}
procedure Paint; override; // do not override in descendants!
// All descendants should use DrawControl method instead of Paint.
// DrawControl is not called between BeginUpdate and EndUpdate
procedure DrawControl; virtual;
// This method is called when control should be rendered (when some
// general action occur which change "body" e.g. resize)
procedure RenderControl; virtual;
public
{$IFDEF FPC}
{ Save all published settings to file }
procedure SaveToFile(AFileName: string); virtual; abstract;
{ Load and assign all published settings from file }
procedure LoadFromFile(AFileName: string); virtual; abstract;
{ Assign the properties from AFileName to this instance }
procedure AssignFromFile(AFileName: string); virtual; abstract;
{ Used by SaveToFile/LoadFromFile }
{$ENDIF}
constructor Create(AOwner: TComponent); override;
// This disable DrawControl method
procedure BeginUpdate; virtual;
// This enable DrawControl method
procedure EndUpdate; virtual;
// Called on EndUpdate if FUpdateCount is 0
procedure UpdateControl; virtual;
// Check if BeginUpdate was called
function IsUpdating: Boolean;
end;
{ TBCStyleDummyProperty
This is only dummy property type for access to style editor from
object inspector
}
TBCStyleDummyProperty = class(TBCProperty)
end;
{ TBCStyleGraphicControl
All descendants of this class have support for saving and loading styles and
access to style editor from object inspector or component context menu
}
TBCStyleGraphicControl = class(TBCGraphicControl)
private
FAssignStyle: TBCStyleDummyProperty;
protected
function GetStyleExtension: String; virtual; abstract;
// Dummy property for access to style editor dialog
property AssignStyle: TBCStyleDummyProperty read FAssignStyle;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
property StyleExtension: String read GetStyleExtension;
end;
{ TBCCustomControl
BC custom control with some basic functionality like begin/end update and
debug functions
}
TBCCustomControl = class(TBGRACustomCtrl)
private
{$IFDEF INDEBUG}
FPaintCount: Integer;
{$ENDIF}
FUpdateCount: Integer;
protected
procedure DoOnResize; override;
protected
{$IFDEF INDEBUG}
function GetDebugText: String; virtual;
{$ENDIF}
procedure Paint; override; // do not override in descendants!
// All descendants should use DrawControl method instead of Paint.
// DrawControl is not called between BeginUpdate and EndUpdate
procedure DrawControl; virtual;
// This method is called when control should be rendered (when some
// general action occur which change "body" e.g. resize)
procedure RenderControl; virtual;
public
constructor Create(AOwner: TComponent); override;
// This disable DrawControl method
procedure BeginUpdate; virtual;
// This enable DrawControl method
procedure EndUpdate; virtual;
// Called on EndUpdate if FUpdateCount is 0
procedure UpdateControl; virtual;
// Check if BeginUpdate was called
function IsUpdating: Boolean;
end;
{ TBCStyleCustomControl
All descendants of this class have support for saving and loading styles and
access to style editor from object inspector or component context menu
}
TBCStyleCustomControl = class(TBCCustomControl)
private
FAssignStyle: TBCStyleDummyProperty;
protected
function GetStyleExtension: String; virtual; abstract;
// Dummy property for access to style editor dialog
property AssignStyle: TBCStyleDummyProperty read FAssignStyle;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
property StyleExtension: String read GetStyleExtension;
end;
{$IFDEF FPC}procedure Register;{$ENDIF}
implementation
//{$IFDEF INDEBUG} uses Graphics; {$ENDIF}
{$IFDEF FPC}
procedure Register;
begin
RegisterNoIcon([TBCCustomControl]);
end;
{$ENDIF}
{ TBCStyleCustomControl }
constructor TBCStyleCustomControl.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
FAssignStyle := TBCStyleDummyProperty.Create(Self);
end;
destructor TBCStyleCustomControl.Destroy;
begin
FAssignStyle.Free;
inherited Destroy;
end;
{ TBCStyleGraphicControl }
constructor TBCStyleGraphicControl.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
FAssignStyle := TBCStyleDummyProperty.Create(Self);
end;
destructor TBCStyleGraphicControl.Destroy;
begin
FAssignStyle.Free;
inherited Destroy;
end;
{ TBCCustomControl }
procedure TBCCustomControl.DoOnResize;
begin
inherited DoOnResize;
RenderControl;
end;
{$IFDEF INDEBUG}
function TBCCustomControl.GetDebugText: String;
begin
Result := EmptyStr;
end;
{$ENDIF}
procedure TBCCustomControl.Paint;
begin
if (csCreating in ControlState) or IsUpdating then
Exit;
DrawControl;
{$IFDEF INDEBUG}
FPaintCount := FPaintCount +1;
Canvas.Brush.Style := bsSolid;
Canvas.Brush.Color := clBlack;
Canvas.Font.Color := clWhite;
Canvas.TextOut(1,1,'P: '+IntToStr(FPaintCount)+' '+GetDebugText);
{$ENDIF}
inherited Paint;
end;
procedure TBCCustomControl.DrawControl;
begin
end;
procedure TBCCustomControl.RenderControl;
begin
end;
constructor TBCCustomControl.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
{$IFDEF INDEBUG}
FPaintCount := 0;
{$ENDIF}
end;
procedure TBCCustomControl.BeginUpdate;
begin
FUpdateCount := FUpdateCount +1;
end;
procedure TBCCustomControl.EndUpdate;
begin
if FUpdateCount > 0 then
begin
FUpdateCount := FUpdateCount -1;
if FUpdateCount=0 then
UpdateControl;
end;
end;
procedure TBCCustomControl.UpdateControl;
begin
Self.Invalidate;
end;
function TBCCustomControl.IsUpdating: Boolean;
begin
Result := FUpdateCount>0;
end;
{ TBCProperty }
procedure TBCProperty.Change(AData: PtrInt);
begin
if Assigned(FOnChange) then
FOnChange(Self,AData);
end;
constructor TBCProperty.Create(AControl: TControl);
begin
FControl := AControl;
inherited Create;
end;
{ TBCGraphicControl }
procedure TBCGraphicControl.DoOnResize;
begin
inherited DoOnResize;
RenderControl;
end;
{$IFDEF INDEBUG}
function TBCGraphicControl.GetDebugText: String;
begin
Result := EmptyStr;
end;
{$ENDIF}
procedure TBCGraphicControl.Paint;
begin
//inherited Paint;
if (csCreating in ControlState) or IsUpdating then
Exit;
DrawControl;
{$IFDEF INDEBUG}
FPaintCount := FPaintCount +1;
Canvas.Brush.Style := bsSolid;
Canvas.Brush.Color := clBlack;
Canvas.Font.Color := clWhite;
Canvas.TextOut(1,1,'P: '+IntToStr(FPaintCount)+' '+GetDebugText);
{$ENDIF}
end;
procedure TBCGraphicControl.DrawControl;
begin
end;
procedure TBCGraphicControl.RenderControl;
begin
end;
constructor TBCGraphicControl.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
{$IFDEF INDEBUG}
FPaintCount := 0;
{$ENDIF}
end;
procedure TBCGraphicControl.BeginUpdate;
begin
FUpdateCount := FUpdateCount +1;
end;
procedure TBCGraphicControl.EndUpdate;
begin
if FUpdateCount > 0 then
begin
FUpdateCount := FUpdateCount -1;
if FUpdateCount=0 then
UpdateControl;
end;
end;
procedure TBCGraphicControl.UpdateControl;
begin
Invalidate;
end;
function TBCGraphicControl.IsUpdating: Boolean;
begin
Result := FUpdateCount>0;
end;
{ TBGRABitmapEx }
procedure TBGRABitmapEx.Init;
begin
inherited Init;
FNeedRender := True;
FCustomData := 0;
end;
procedure TBGRABitmapEx.Discard;
begin
FNeedRender := true;
SetSize(0,0);
end;
{$IFNDEF FPC}
constructor TBGRAGraphicCtrl.Create(TheOwner: TComponent);
begin
inherited Create(TheOwner);
FBorderSpacing := CreateControlBorderSpacing;
FOnChange := Font.OnChange;
Font.OnChange := FontChanged;
end;
function TBGRAGraphicCtrl.CreateControlBorderSpacing: TControlBorderSpacing;
begin
Result := TControlBorderSpacing.Create(Self);
end;
destructor TBGRAGraphicCtrl.Destroy;
begin
FreeAndNil(FBorderSpacing);
inherited;
end;
procedure TBGRAGraphicCtrl.DoBorderSpacingChange(Sender: TObject; InnerSpaceChanged: Boolean);
var
IParent : ILCLControl;
begin
if Parent <> nil then
if Supports(Parent, ILCLControl, IParent) then
IParent.InvalidatePreferredSize;
AdjustSize;
end;
procedure TBGRAGraphicCtrl.DoOnResize;
begin
if Assigned(OnResize) then
OnResize(Self);
end;
procedure TBGRAGraphicCtrl.SetBorderSpacing(const AValue: TControlBorderSpacing);
begin
if FBorderSpacing=AValue then exit;
FBorderSpacing.Assign(AValue);
end;
procedure TBGRAGraphicCtrl.SetColor(Value: TColor);
begin
if inherited Color <> Value then
begin
inherited Color := Value;
ParentColor := False;
Perform(CM_COLORCHANGED, 0, 0);
Invalidate;
end;
end;
function TBGRAGraphicCtrl.GetColor: TColor;
begin
Result := inherited Color;
end;
procedure TBGRAGraphicCtrl.EnableAutoSizing;
begin
end;
class function TBGRAGraphicCtrl.GetControlClassDefaultSize: TSize;
begin
Result.CX := 75;
Result.CY := 50;
end;
function TBGRAGraphicCtrl.GetInstance: TObject;
begin
result := Self;
end;
procedure TBGRAGraphicCtrl.CalculatePreferredSize(var PreferredWidth, PreferredHeight: integer;{%H-}WithThemeSpace: boolean);
begin
PreferredWidth:=0;
PreferredHeight:=0;
end;
procedure TBGRAGraphicCtrl.MouseEnter;
begin
if Assigned(OnMouseEnter) then
OnMouseEnter(Self);
end;
procedure TBGRAGraphicCtrl.MouseLeave;
begin
if Assigned(OnMouseLeave) then
OnMouseLeave(Self);
end;
procedure TBGRAGraphicCtrl.TextChanged;
begin
// overrided;
end;
procedure TBGRAGraphicCtrl.FontChanged(Sender: TObject);
begin
ParentFont := False;
DesktopFont := False;
Invalidate;
Perform(CM_FONTCHANGED, 0, 0);
if AutoSize then
begin
InvalidatePreferredSize;
AdjustSize;
end;
if Assigned(FOnChange) then
FOnChange(Self);
end;
function TBGRAGraphicCtrl.RealGetText: TCaption;
begin
Result := Caption;
end;
procedure TBGRAGraphicCtrl.RealSetText(const Value: TCaption);
begin
if RealGetText = Value then Exit;
Caption := Value;
Perform(CM_TEXTCHANGED, 0, 0);
end;
procedure TBGRAGraphicCtrl.InvalidatePreferredSize;
begin
// Invalidate;
end;
function TBGRAGraphicCtrl.IsInnerBorderStored: boolean;
begin
Result:=BorderSpacing.InnerBorder<>0;
end;
procedure TBGRAGraphicCtrl.Resize;
begin
inherited;
Invalidate;
DoOnResize;
end;
function TBGRAGraphicCtrl.ColorIsStored: boolean;
begin
Result := not ParentColor;
end;
procedure TBGRAGraphicCtrl.SetInitialBounds(aLeft, aTop, aWidth, aHeight: integer);
begin
{if (csLoading in ComponentState)
or ((Owner<>nil) and (csLoading in Owner.ComponentState)) then
exit;}
SetBounds(aLeft,aTop,aWidth,aHeight);
// DoOnResize;
end;
procedure TBGRAGraphicCtrl.CMTextChanged(var Message: TMessage);
begin
inherited;
TextChanged;
end;
procedure TBGRAGraphicCtrl.CMMouseEnter(var Message: TMessage);
begin
if FMouseInClient then
Exit;
FMouseInClient := True;
// broadcast to parents first
if Assigned(Parent) then
Parent.Perform(CM_MOUSEENTER, 0, LParam(Self));
// if it is not a child message then perform an event
if (Message.LParam = 0) then
MouseEnter;
end;
procedure TBGRAGraphicCtrl.CMMouseLeave(var Message: TMessage);
begin
if not FMouseInClient then
Exit;
FMouseInClient := False;
// broadcast to parents first
if Assigned(Parent) then
Parent.Perform(CM_MOUSELEAVE, 0, LParam(Self));
// if it is not a child message then perform an event
if (Message.LParam = 0) then
MouseLeave;
end;
{TBGRACustomCtrl}
constructor TBGRACustomCtrl.Create(TheOwner: TComponent);
begin
inherited Create(TheOwner);
FBorderSpacing := CreateControlBorderSpacing;
FChildSizing:=TControlChildSizing.Create(Self);
FChildSizing.OnChange := DoChildSizingChange;
FOnChange := Font.OnChange;
Font.OnChange := FontChanged;
end;
function TBGRACustomCtrl.CreateControlBorderSpacing: TControlBorderSpacing;
begin
Result := TControlBorderSpacing.Create(Self);
end;
destructor TBGRACustomCtrl.Destroy;
begin
FreeAndNil(FBorderSpacing);
FreeAndNil(FChildSizing);
inherited;
end;
procedure TBGRACustomCtrl.DoBorderSpacingChange(Sender: TObject; InnerSpaceChanged: Boolean);
var
IParent : ILCLControl;
begin
if Parent <> nil then
if Supports(Parent, ILCLControl, IParent) then
IParent.InvalidatePreferredSize;
AdjustSize;
end;
procedure TBGRACustomCtrl.DoChildSizingChange(Sender: TObject);
begin
//debugln('TWinControl.DoChildSizingChange ',DbgSName(Self));
if ControlCount=0 then exit;
InvalidatePreferredSize;
ReAlign;
end;
procedure TBGRACustomCtrl.DoOnResize;
begin
if Assigned(OnResize) then
OnResize(Self);
end;
procedure TBGRACustomCtrl.CalculatePreferredSize(var PreferredWidth, PreferredHeight: integer;{%H-}WithThemeSpace: boolean);
begin
PreferredWidth:=0;
PreferredHeight:=0;
end;
procedure TBGRACustomCtrl.MouseEnter;
begin
if Assigned(OnMouseEnter) then
OnMouseEnter(Self);
end;
procedure TBGRACustomCtrl.MouseLeave;
begin
if Assigned(OnMouseLeave) then
OnMouseLeave(Self);
end;
procedure TBGRACustomCtrl.TextChanged;
begin
// overrided;
end;
procedure TBGRACustomCtrl.FontChanged(Sender: TObject);