button.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#ifndef INCLUDED_VCL_BUTTON_HXX
#define INCLUDED_VCL_BUTTON_HXX

#include <tools/solar.h>
#include <vcl/dllapi.h>
#include <vcl/image.hxx>
#include <vcl/ctrl.hxx>
#include <vcl/vclenum.hxx>
#include <memory>
#include <vector>

namespace com::sun::star::frame { struct FeatureStateEvent; }
template <class T> class VclPtr;

class Color;
class ImplCommonButtonData;
enum class DrawButtonFlags;

class VCL_DLLPUBLIC Button : public Control
{
private:
    std::unique_ptr<ImplCommonButtonData> mpButtonData;
    Link<Button*,void> maClickHdl;

    OUString maCommand;

                                    Button (const Button &) = delete;
                                    Button & operator= (const Button &) = delete;
public:
    SAL_DLLPRIVATE DrawTextFlags    ImplGetTextStyle( WinBits nWinStyle, DrawFlags nDrawFlags );
    SAL_DLLPRIVATE void             ImplDrawAlignedImage(OutputDevice* pDev, Point& rPos, Size& rSize,
                                              sal_uLong nImageSep,
                                              DrawTextFlags nTextStyle, tools::Rectangle *pSymbolRect=nullptr, bool bAddImageSep = false );
    SAL_DLLPRIVATE void             ImplSetFocusRect( const tools::Rectangle &rFocusRect );
    SAL_DLLPRIVATE const tools::Rectangle& ImplGetFocusRect() const;
    SAL_DLLPRIVATE void             ImplSetSymbolAlign( SymbolAlign eAlign );
    SAL_DLLPRIVATE tools::Long             ImplGetSeparatorX() const;
    SAL_DLLPRIVATE void             ImplSetSeparatorX( tools::Long nX );

protected:
    explicit            Button( WindowType nType );

public:
    virtual            ~Button() override;
    virtual void        dispose() override;

    virtual void        Click();

    void                SetClickHdl( const Link<Button*,void>& rLink ) { maClickHdl = rLink; }
    const Link<Button*,void>& GetClickHdl() const { return maClickHdl; }

    void                SetCommandHandler(const OUString& aCommand);
    OUString const &    GetCommand() const { return maCommand; }

    void                SetModeImage( const Image& rImage );
    Image const &       GetModeImage( ) const;
    bool                HasImage() const;
    void                SetImageAlign( ImageAlign eAlign );
    ImageAlign          GetImageAlign() const;
    DrawButtonFlags     GetButtonState() const;
    DrawButtonFlags&    GetButtonState();


    bool                IsSmallSymbol() const;
    void                SetSmallSymbol();
    virtual bool        set_property(const OString &rKey, const OUString &rValue) override;

    virtual void        statusChanged(const css::frame::FeatureStateEvent& rEvent);

    virtual FactoryFunction GetUITestFactory() const override;

    virtual void DumpAsPropertyTree(tools::JsonWriter&) override;

protected:

    DECL_STATIC_LINK(Button, dispatchCommandHandler, Button*, void);
};

enum class PushButtonDropdownStyle
{
    NONE            = 0x0000,
    MenuButton      = 0x0002, //visual down arrow
    SplitMenuButton = 0x0003, //visual down arrow and separator line
};

class VCL_DLLPUBLIC PushButton : public Button
{
public:
    SAL_DLLPRIVATE void            ImplSetDefButton( bool bSet );
    SAL_DLLPRIVATE void            ImplDrawPushButtonFrame(vcl::RenderContext& rRenderContext, tools::Rectangle& rRect, DrawButtonFlags nStyle);
    SAL_DLLPRIVATE static bool     ImplHitTestPushButton(vcl::Window const * pDev, const Point& rPos);
    SAL_DLLPRIVATE bool            ImplIsDefButton() const;

    explicit        PushButton( vcl::Window* pParent, WinBits nStyle = 0 );

    virtual void    MouseButtonDown( const MouseEvent& rMEvt ) override;
    virtual void    Tracking( const TrackingEvent& rTEvt ) override;
    virtual void    KeyInput( const KeyEvent& rKEvt ) override;
    virtual void    KeyUp( const KeyEvent& rKEvt ) override;
    virtual void    Paint( vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect ) override;
    virtual void    Draw( OutputDevice* pDev, const Point& rPos, DrawFlags nFlags ) override;
    virtual void    Resize() override;
    virtual void    GetFocus() override;
    virtual void    LoseFocus() override;
    virtual void    StateChanged( StateChangedType nType ) override;
    virtual void    DataChanged( const DataChangedEvent& rDCEvt ) override;
    virtual bool    PreNotify( NotifyEvent& rNEvt ) override;

    void            Toggle();

    void            SetSymbol( SymbolType eSymbol );
    SymbolType      GetSymbol() const { return meSymbol; }
    void            SetSymbolAlign( SymbolAlign eAlign );

    void            SetDropDown( PushButtonDropdownStyle nStyle );

    void            SetState( TriState eState );
    TriState        GetState() const { return meState; }
    virtual void    statusChanged(const css::frame::FeatureStateEvent& rEvent) override;

    void            Check( bool bCheck = true );
    bool            IsChecked() const;

    void            SetPressed( bool bPressed );
    bool            IsPressed() const { return mbPressed; }

    void            EndSelection();

    Size            CalcMinimumSize() const;
    virtual Size    GetOptimalSize() const override;

    virtual bool    set_property(const OString &rKey, const OUString &rValue) override;
    virtual void    ShowFocus(const tools::Rectangle& rRect) override;

    void setAction(bool bIsAction)
    {
        mbIsAction = bIsAction;
    }

    bool isAction() const
    {
        return mbIsAction;
    }

protected:
    PushButtonDropdownStyle mnDDStyle;
    bool            mbIsActive;

    SAL_DLLPRIVATE void            ImplInitPushButtonData();
    SAL_DLLPRIVATE static WinBits  ImplInitStyle( const vcl::Window* pPrevWindow, WinBits nStyle );
    SAL_DLLPRIVATE void            ImplInitSettings( bool bBackground );
    SAL_DLLPRIVATE void            ImplDrawPushButtonContent(OutputDevice* pDev, DrawFlags nDrawFlags,
                                                             const tools::Rectangle& rRect, bool bMenuBtnSep,
                                                             DrawButtonFlags nButtonFlags);
    SAL_DLLPRIVATE void            ImplDrawPushButton(vcl::RenderContext& rRenderContext);
    using Button::ImplGetTextStyle;
    SAL_DLLPRIVATE DrawTextFlags   ImplGetTextStyle( DrawFlags nDrawFlags ) const;
    SAL_DLLPRIVATE bool            IsSymbol() const { return ( (meSymbol != SymbolType::DONTKNOW) && (meSymbol != SymbolType::IMAGE) ); }

                                   PushButton( const PushButton & ) = delete;
                                   PushButton& operator=( const PushButton & )
                                       = delete;

    SAL_DLLPRIVATE void            ImplInit( vcl::Window* pParent, WinBits nStyle );

    using Control::ImplInitSettings;
    using Window::ImplInit;

    explicit        PushButton( WindowType nType );

    virtual void    FillLayoutData() const override;
    virtual const vcl::Font&
                    GetCanonicalFont( const StyleSettings& _rStyle ) const override;
    virtual const Color&
                    GetCanonicalTextColor( const StyleSettings& _rStyle ) const override;

private:
    SymbolType      meSymbol;
    TriState        meState;
    bool            mbPressed;
    bool            mbIsAction;
};

inline void PushButton::Check( bool bCheck )
{
    SetState( bCheck ? TRISTATE_TRUE : TRISTATE_FALSE );
}

inline bool PushButton::IsChecked() const
{
    return (GetState() == TRISTATE_TRUE);
}

#endif // INCLUDED_VCL_BUTTON_HXX

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