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mbColorLib: Initial commit (still some issues)
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@5452 8e941d3f-bd1b-0410-a28a-d453659cc2b4
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wp_xxyyzz
399
components/mbColorLib/HSLColorPicker.pas
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399
components/mbColorLib/HSLColorPicker.pas
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unit HSLColorPicker;
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{$IFDEF FPC}
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{$MODE DELPHI}
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{$ENDIF}
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interface
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{$I mxs.inc}
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uses
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{$IFDEF FPC}
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LCLIntf, LCLType, LMessages,
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{$ELSE}
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Windows, Messages,
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{$ENDIF}
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SysUtils, Classes, Controls, Graphics, Forms, Menus,
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{$IFDEF DELPHI_7_UP} Themes, {$ENDIF}
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RGBHSLUtils, HSColorPicker, LColorPicker, HTMLColors;
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type
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THSLColorPicker = class(TCustomControl)
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private
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FOnChange: TNotifyEvent;
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FHSPicker: THSColorPicker;
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FLPicker: TLColorPicker;
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FSelectedColor: TColor;
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FHValue, FSValue, FLValue: integer;
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FRValue, FGValue, FBValue: integer;
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FHSHint, FLHint: string;
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FLMenu, FHSMenu: TPopupMenu;
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FLumIncrement: integer;
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FHSCursor, FLCursor: TCursor;
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PBack: TBitmap;
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function GetManual: boolean;
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procedure SetLumIncrement(i: integer);
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procedure SelectColor(c: TColor);
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procedure SetH(v: integer);
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procedure SetS(v: integer);
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procedure SetL(v: integer);
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procedure SetR(v: integer);
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procedure SetG(v: integer);
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procedure SetB(v: integer);
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procedure SetHSHint(h: string);
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procedure SetLHint(h: string);
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procedure SetLMenu(m: TPopupMenu);
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procedure SetHSMenu(m: TPopupMenu);
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procedure SetHSCursor(c: TCursor);
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procedure SetLCursor(c: TCursor);
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procedure PaintParentBack;
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procedure SetSelectedColor(Value: TColor);
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protected
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procedure CreateWnd; override;
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procedure Resize; override;
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procedure Paint; override;
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procedure WMEraseBkgnd(var Message: {$IFDEF FPC}TLMEraseBkgnd{$ELSE}TWMEraseBkgnd{$ENDIF});
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message {$IFDEF FPC}LM_ERASEBKGND{$ELSE}WM_ERASEBKGND{$ENDIF};
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procedure WMSetFocus(var Message: {$IFDEF FPC}TLMSetFocus{$ELSE}TWMSetFocus{$ENDIF});
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message {$IFDEF FPC}LM_SETFOCUS{$ELSE}WM_SETFOCUS{$ENDIF};
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procedure DoMouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
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procedure HSPickerChange(Sender: TObject);
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procedure LPickerChange(Sender: TObject);
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procedure DoChange;
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public
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constructor Create(AOwner: TComponent); override;
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destructor Destroy; override;
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function GetColorUnderCursor: TColor;
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function GetHexColorUnderCursor: string;
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function GetSelectedHexColor: string;
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property ColorUnderCursor: TColor read GetColorUnderCursor;
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property HValue: integer read FHValue write SetH default 0;
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property SValue: integer read FSValue write SetS default 240;
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property LValue: integer read FLValue write SetL default 120;
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property RValue: integer read FRValue write SetR default 255;
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property GValue: integer read FGValue write SetG default 0;
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property BValue: integer read FBValue write SetB default 0;
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property Manual: boolean read GetManual;
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published
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property LuminanceIncrement: integer read FLumIncrement write SetLumIncrement default 1;
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property SelectedColor: TColor read FSelectedColor write SetSelectedColor default clRed;
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property HSPickerPopupMenu: TPopupMenu read FHSMenu write SetHSMenu;
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property LPickerPopupMenu: TPopupMenu read FLMenu write SetLMenu;
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property HSPickerHintFormat: string read FHSHint write SetHSHint;
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property LPickerHintFormat: string read FLHint write SetLHint;
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property HSPickerCursor: TCursor read FHSCursor write SetHSCursor default crDefault;
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property LPickerCursor: TCursor read FLCursor write SetLCursor default crDefault;
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property TabStop default true;
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property ShowHint;
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property ParentShowHint;
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property Anchors;
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property Align;
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property Visible;
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property Enabled;
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property TabOrder;
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property Color;
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property ParentColor default true;
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{$IFDEF DELPHI_7_UP}{$IFDEF DELPHI}
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property ParentBackground default true;
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{$ENDIF}{$ENDIF}
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property OnChange: TNotifyEvent read FOnChange write FOnChange;
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property OnMouseMove;
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end;
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procedure Register;
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implementation
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{$IFDEF FPC}
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{$R HSLColorPicker.dcr}
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{$ENDIF}
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procedure Register;
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begin
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RegisterComponents('mbColor Lib', [THSLColorPicker]);
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end;
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{THSLColorPicker}
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constructor THSLColorPicker.Create(AOwner: TComponent);
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begin
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inherited;
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ControlStyle := ControlStyle - [csAcceptsControls] + [csOpaque];
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DoubleBuffered := true;
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ParentColor := true;
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PBack := TBitmap.Create;
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PBack.PixelFormat := pf32bit;
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{$IFDEF DELPHI_7_UP} {$IFDEF DELPHI}
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ParentBackground := true;
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{$ENDIF} {$ENDIF}
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Width := 206;
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Height := 146;
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TabStop := true;
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FSelectedColor := clRed;
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FHSPicker := THSColorPicker.Create(Self);
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InsertControl(FHSPicker);
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FLumIncrement := 1;
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FHSCursor := crDefault;
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FLCursor := crDefault;
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with FHSPicker do
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begin
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Height := 134;
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Width := 174;
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Top := 6;
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Left := 0;
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Anchors := [akLeft, akTop, akRight, akBottom];
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Visible := true;
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OnChange := HSPickerChange;
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OnMouseMove := DoMouseMove;
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end;
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FLPicker := TLColorPicker.Create(Self);
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InsertControl(FLPicker);
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with FLPicker do
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begin
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Height := 146;
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Top := 0;
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Left := 184;
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Anchors := [akRight, akTop, akBottom];
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Visible := true;
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OnChange := LPickerChange;
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OnMouseMove := DoMouseMove;
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end;
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FHValue := 0;
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FSValue := 240;
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FLValue := 120;
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FRValue := 255;
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FGValue := 0;
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FBValue := 0;
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FHSHint := 'H: %h S: %hslS'#13'Hex: %hex';
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FLHint := 'Luminance: %l';
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end;
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destructor THSLColorPicker.Destroy;
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begin
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PBack.Free;
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FHSPicker.Free;
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FLPicker.Free;
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inherited Destroy;
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end;
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procedure THSLColorPicker.HSPickerChange(Sender: TObject);
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begin
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FLPicker.Hue := FHSPicker.HueValue;
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FLPicker.Saturation := FHSPicker.SaturationValue;
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DoChange;
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end;
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procedure THSLColorPicker.LPickerChange(Sender: TObject);
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begin
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FHSPicker.Lum := FLPicker.Luminance;
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FSelectedColor := FLPicker.SelectedColor;
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DoChange;
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end;
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procedure THSLColorPicker.DoChange;
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begin
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FHValue := FLPicker.Hue;
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FSValue := FLPicker.Saturation;
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FLValue := FLPicker.Luminance;
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FRValue := GetRValue(FLPicker.SelectedColor);
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FGValue := GetGValue(FLPicker.SelectedColor);
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FBValue := GetBValue(FLPicker.SelectedColor);
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if Assigned(FOnChange) then
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FOnChange(Self);
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end;
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procedure THSLColorPicker.SelectColor(c: TColor);
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begin
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FSelectedColor := c;
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FHSPicker.SelectedColor := c;
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FLPicker.SelectedColor := c;
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end;
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procedure THSLColorPicker.SetH(v: integer);
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begin
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FHValue := v;
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FHSPicker.HueValue := v;
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FLPicker.Hue := v;
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end;
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procedure THSLColorPicker.SetS(v: integer);
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begin
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FSValue := v;
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FHSPicker.SaturationValue := v;
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FLPicker.Saturation := v;
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end;
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procedure THSLColorPicker.SetL(v: integer);
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begin
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FLValue := v;
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FLPicker.Luminance := v;
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end;
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procedure THSLColorPicker.SetR(v: integer);
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begin
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FRValue := v;
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SetSelectedColor(RGB(FRValue, FGValue, FBValue));
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end;
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procedure THSLColorPicker.SetG(v: integer);
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begin
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FGValue := v;
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SetSelectedColor(RGB(FRValue, FGValue, FBValue));
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end;
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procedure THSLColorPicker.SetB(v: integer);
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begin
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FBValue := v;
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SetSelectedColor(RGB(FRValue, FGValue, FBValue));
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end;
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function THSLColorPicker.GetSelectedHexColor: string;
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begin
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Result := ColorToHex(FSelectedColor);
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end;
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procedure THSLColorPicker.SetHSHint(h: string);
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begin
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FHSHint := h;
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FHSPicker.HintFormat := h;
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end;
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procedure THSLColorPicker.SetLHint(h: string);
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begin
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FLHint := h;
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FLPicker.HintFormat := h;
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end;
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procedure THSLColorPicker.SetLMenu(m: TPopupMenu);
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begin
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FLMenu := m;
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FLPicker.PopupMenu := m;
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end;
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procedure THSLColorPicker.SetHSMenu(m: TPopupMenu);
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begin
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FHSMenu := m;
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FHSPicker.PopupMenu := m;
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end;
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procedure THSLColorPicker.SetLumIncrement(i: integer);
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begin
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FLumIncrement := i;
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FLPicker.Increment := i;
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end;
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procedure THSLColorPicker.DoMouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
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begin
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if Assigned(OnMouseMove) then
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OnMouseMove(Self, Shift, x, y);
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inherited;
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end;
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function THSLColorPicker.GetColorUnderCursor: TColor;
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begin
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Result := FHSPicker.GetColorUnderCursor;
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end;
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function THSLColorPicker.GetHexColorUnderCursor: string;
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begin
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Result := FHSPicker.GetHexColorUnderCursor;
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end;
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procedure THSLColorPicker.SetHSCursor(c: TCursor);
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begin
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FHSCursor := c;
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FHSPicker.Cursor := c;
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end;
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procedure THSLColorPicker.SetLCursor(c: TCursor);
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begin
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FLCursor := c;
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FLPicker.Cursor := c;
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end;
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procedure THSLColorPicker.WMSetFocus(
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var Message: {$IFDEF FPC}TLMSetFocus{$ELSE}TWMSetFocus{$ENDIF} );
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begin
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FHSPicker.SetFocus;
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Message.Result := 1;
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end;
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function THSLColorPicker.GetManual:boolean;
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begin
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Result := FHSPicker.Manual or FLPicker.Manual;
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end;
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procedure THSLColorPicker.PaintParentBack;
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{$IFDEF DELPHI_7_UP} {$IFDEF DELPHI}
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var
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MemDC: HDC;
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OldBMP: HBITMAP;
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{$ENDIF} {$ENDIF}
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begin
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if PBack = nil then
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begin
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PBack := TBitmap.Create;
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PBack.PixelFormat := pf32bit;
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end;
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PBack.Width := Width;
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PBack.Height := Height;
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{$IFDEF FPC}
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if Color = clDefault then
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PBack.Canvas.Brush.Color := clForm
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else
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{$ENDIF}
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PBack.Canvas.Brush.Color := Color;
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PBack.Canvas.FillRect(PBack.Canvas.ClipRect);
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{$IFDEF DELPHI_7_UP} {$IFDEF DELPHI}
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if ParentBackground then
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with ThemeServices do
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if ThemesEnabled then
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begin
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MemDC := CreateCompatibleDC(0);
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OldBMP := SelectObject(MemDC, PBack.Handle);
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DrawParentBackground(Handle, MemDC, nil, False);
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if OldBMP <> 0 then SelectObject(MemDC, OldBMP);
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if MemDC <> 0 then DeleteDC(MemDC);
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end;
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{$ENDIF} {$ENDIF}
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end;
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procedure THSLColorPicker.Resize;
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begin
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inherited;
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PaintParentBack;
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end;
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procedure THSLColorPicker.CreateWnd;
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begin
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inherited;
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PaintParentBack;
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end;
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procedure THSLColorPicker.Paint;
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begin
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PaintParentBack;
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Canvas.Draw(0, 0, PBack);
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end;
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procedure THSLColorPicker.WMEraseBkgnd(
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var Message: {$IFDEF FPC}TLMEraseBkgnd{$ELSE}TWMEraseBkgnd{$ENDIF} );
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begin
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Message.Result := 1;
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end;
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procedure THSLColorPicker.SetSelectedColor(Value: TColor);
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begin
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if FSelectedColor <> Value then
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begin
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SelectColor(Value);
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//FLPicker.Hue := FHSPicker.HueValue;
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//FLPicker.Saturation := FHSPicker.SaturationValue;
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end;
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end;
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end.
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