include/root/TGColorSelect.h

0001 // @(#)root/gui:$Id$
0002 // Author: Bertrand Bellenot + Fons Rademakers   22/08/02
0003
0004 /*************************************************************************
0005  * Copyright (C) 1995-2021, Rene Brun and Fons Rademakers.               *
0006  * All rights reserved.                                                  *
0007  *                                                                       *
0008  * For the licensing terms see $ROOTSYS/LICENSE.                         *
0009  * For the list of contributors see $ROOTSYS/README/CREDITS.             *
0010  *************************************************************************/
0011
0012 #ifndef ROOT_TGColorSelect
0013 #define ROOT_TGColorSelect
0014
0015
0016 #include "TGFrame.h"
0017 #include "TGButton.h"
0018
0019
0020 //----------------------------------------------------------------------
0021
0022 class TGColorFrame : public TGFrame {
0023
0024 protected:
0025    const TGWindow *fMsgWindow;   ///< window handling container messages
0026    Pixel_t         fPixel;       ///< color value of this cell
0027    Bool_t          fActive;      ///< kTRUE if this color cell is active
0028    GContext_t      fGrayGC;      ///< Shadow GC
0029    Pixel_t         fColor;       ///< returned color value
0030
0031 private:
0032    TGColorFrame(const TGColorFrame&) = delete;
0033    TGColorFrame& operator=(const TGColorFrame&) = delete;
0034
0035 public:
0036    TGColorFrame(const TGWindow *p = nullptr, Pixel_t c = 0, Int_t n = 1);
0037    ~TGColorFrame() override { }
0038
0039    Bool_t   HandleButton(Event_t *event) override;
0040    void     DrawBorder() override;
0041
0042    void     SetActive(Bool_t in) { fActive = in; gClient->NeedRedraw(this); }
0043    Pixel_t  GetColor() const { return fColor; }
0044
0045    ClassDefOverride(TGColorFrame,0)  // Frame for color cell
0046 };
0047
0048 //----------------------------------------------------------------------
0049
0050 class TG16ColorSelector : public TGCompositeFrame {
0051
0052 protected:
0053    Int_t            fActive;     ///< index of active color cell
0054    const TGWindow  *fMsgWindow;  ///< window handling container messages
0055    TGColorFrame    *fCe[16];     ///< matrix of color cells
0056
0057 private:
0058    TG16ColorSelector(const TG16ColorSelector&) = delete;
0059    TG16ColorSelector& operator=(const TG16ColorSelector&) = delete;
0060
0061 public:
0062    TG16ColorSelector(const TGWindow *p = nullptr);
0063    ~TG16ColorSelector() override;
0064
0065    Bool_t ProcessMessage(Longptr_t msg, Longptr_t parm1, Longptr_t parm2) override;
0066
0067    void    SetActive(Int_t newat);
0068    Int_t   GetActive() { return fActive; }
0069
0070    ClassDefOverride(TG16ColorSelector,0)  // 16 color cells
0071 };
0072
0073 //----------------------------------------------------------------------
0074
0075 class TGColorPopup : public TGCompositeFrame {
0076
0077 protected:
0078    Int_t            fActive;        ///< active color index
0079    Int_t            fLaunchDialog;  ///< flag used for launching color dialog
0080    const TGWindow  *fMsgWindow;     ///< window handling container messages
0081    Pixel_t          fCurrentColor;  ///< currently selected color value
0082
0083 private:
0084    TGColorPopup(const TGColorPopup&) = delete;
0085    TGColorPopup& operator=(const TGColorPopup&) = delete;
0086
0087 public:
0088    TGColorPopup(const TGWindow *p = nullptr, const TGWindow *m = nullptr, Pixel_t color = 0);
0089    ~TGColorPopup() override;
0090
0091    Bool_t  HandleButton(Event_t *event) override;
0092    Bool_t  ProcessMessage(Longptr_t msg, Longptr_t parm1, Longptr_t parm2) override;
0093
0094    void    PlacePopup(Int_t x, Int_t y, UInt_t w, UInt_t h);
0095    void    EndPopup();
0096    void    PreviewColor(Pixel_t color);
0097    void    PreviewAlphaColor(ULongptr_t color);
0098
0099    ClassDefOverride(TGColorPopup,0)  // Color selector popup
0100 };
0101
0102 //----------------------------------------------------------------------
0103
0104 class TGColorSelect : public TGCheckButton {
0105
0106 protected:
0107    Pixel_t       fColor;         ///< color value of the button
0108    TGGC          fDrawGC;        ///< drawing GC
0109    TGColorPopup *fColorPopup;    ///< color popup associated
0110    TGPosition    fPressPos;      ///< position of frame on button press event
0111
0112    void DoRedraw() override;
0113
0114    void DrawTriangle(GContext_t gc, Int_t x, Int_t y);
0115
0116 private:
0117    TGColorSelect(const TGColorSelect&) = delete;
0118    TGColorSelect& operator=(const TGColorSelect&) = delete;
0119
0120 public:
0121    TGColorSelect(const TGWindow *p = nullptr, Pixel_t color = 0,
0122                  Int_t id = -1);
0123    ~TGColorSelect() override;
0124
0125    Bool_t  HandleButton(Event_t *event) override;
0126    Bool_t  ProcessMessage(Longptr_t msg, Longptr_t parm1, Longptr_t parm2) override;
0127
0128    void    SetColor(Pixel_t color, Bool_t emit = kTRUE);
0129    void    SetAlphaColor(ULong_t color, Bool_t emit = kTRUE);
0130    Pixel_t GetColor() const { return fColor; }
0131    void    Enable(Bool_t on = kTRUE);  //*TOGGLE* *GETTER=IsEnabled
0132    void    Disable();
0133
0134    // dummy methods just to remove from context menu
0135    void SetDown(Bool_t on = kTRUE, Bool_t emit = kFALSE) override { TGButton::SetDown(on, emit); }
0136    void Rename(const char *title)  { TGTextButton::SetTitle(title); }
0137    void SetEnabled(Bool_t e = kTRUE) override { TGButton::SetEnabled(e); }
0138
0139    TGDimension GetDefaultSize() const override { return TGDimension(43, 21); }
0140    void SavePrimitive(std::ostream &out, Option_t * = "") override;
0141
0142    virtual void ColorSelected(Pixel_t color = 0)
0143             { Emit("ColorSelected(Pixel_t)", color ? color : GetColor()); }  //*SIGNAL*
0144    virtual void AlphaColorSelected(ULong_t colptr = 0)
0145             { Emit("AlphaColorSelected(ULong_t)", colptr); }  //*SIGNAL*
0146
0147    ClassDefOverride(TGColorSelect,0)  // Color selection checkbutton
0148 };
0149
0150 #endif