[wxWidgets.git] / samples / widgets / slider.cpp

/////////////////////////////////////////////////////////////////////////////
// Program:     wxWindows Widgets Sample
// Name:        slider.cpp
// Purpose:     Part of the widgets sample showing wxSlider
// Author:      Vadim Zeitlin
// Created:     16.04.01
// Id:          $Id$
// Copyright:   (c) 2001 Vadim Zeitlin
// License:     wxWindows license
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

// for compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

// for all others, include the necessary headers
#ifndef WX_PRECOMP
    #include "wx/log.h"

    #include "wx/bitmap.h"
    #include "wx/button.h"
    #include "wx/checkbox.h"
    #include "wx/radiobox.h"
    #include "wx/slider.h"
    #include "wx/statbox.h"
    #include "wx/textctrl.h"
#endif

#if wxUSE_TOOLTIPS
    #include "wx/tooltip.h"
#endif

#include "wx/sizer.h"

#include "widgets.h"
#include "icons/slider.xpm"

// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------

// control ids
enum
{
    SliderPage_Reset = wxID_HIGHEST,
    SliderPage_Clear,
    SliderPage_SetValue,
    SliderPage_SetMinAndMax,
    SliderPage_SetTickFreq,
    SliderPage_SetThumbLen,
    SliderPage_CurValueText,
    SliderPage_ValueText,
    SliderPage_MinText,
    SliderPage_MaxText,
    SliderPage_TickFreqText,
    SliderPage_ThumbLenText,
    SliderPage_RadioSides,
    SliderPage_BothSides,
    SliderPage_Slider
};

// sides radiobox values
enum
{
    StaticSides_Top,
    StaticSides_Bottom,
    StaticSides_Left,
    StaticSides_Right
};

// ----------------------------------------------------------------------------
// SliderWidgetsPage
// ----------------------------------------------------------------------------

class SliderWidgetsPage : public WidgetsPage
{
public:
    SliderWidgetsPage(wxNotebook *notebook, wxImageList *imaglist);
    virtual ~SliderWidgetsPage();

protected:
    // event handlers
    void OnButtonReset(wxCommandEvent& event);
    void OnButtonClear(wxCommandEvent& event);
    void OnButtonSetValue(wxCommandEvent& event);
    void OnButtonSetMinAndMax(wxCommandEvent& event);
    void OnButtonSetTickFreq(wxCommandEvent& event);
    void OnButtonSetThumbLen(wxCommandEvent& event);

    void OnCheckOrRadioBox(wxCommandEvent& event);

    void OnSlider(wxScrollEvent& event);

    void OnUpdateUIValueButton(wxUpdateUIEvent& event);
    void OnUpdateUIMinMaxButton(wxUpdateUIEvent& event);
    void OnUpdateUITickFreq(wxUpdateUIEvent& event);
    void OnUpdateUIThumbLen(wxUpdateUIEvent& event);
    void OnUpdateUIRadioSides(wxUpdateUIEvent& event);
    void OnUpdateUIBothSides(wxUpdateUIEvent& event);

    void OnUpdateUIResetButton(wxUpdateUIEvent& event);

    void OnUpdateUICurValueText(wxUpdateUIEvent& event);

    // reset the slider parameters
    void Reset();

    // (re)create the slider
    void CreateSlider();

    // set the tick frequency from the text field value
    void DoSetTickFreq();

    // set the thumb len from the text field value
    void DoSetThumbLen();

    // is this slider value in range?
    bool IsValidValue(int val) const
        { return (val >= m_min) && (val <= m_max); }

    // the slider range
    int m_min, m_max;

    // the controls
    // ------------

    // the check/radio boxes for styles
    wxCheckBox *m_chkLabels,
               *m_chkVert,
               *m_chkTicks,
               *m_chkBothSides;

    wxRadioBox *m_radioSides;

    // the slider itself and the sizer it is in
    wxSlider *m_slider;
    wxSizer *m_sizerSlider;

    // the text entries for set value/range
    wxTextCtrl *m_textValue,
               *m_textMin,
               *m_textMax,
               *m_textTickFreq,
               *m_textThumbLen;

private:
    DECLARE_EVENT_TABLE()
    DECLARE_WIDGETS_PAGE(SliderWidgetsPage)
};

// ----------------------------------------------------------------------------
// event tables
// ----------------------------------------------------------------------------

BEGIN_EVENT_TABLE(SliderWidgetsPage, WidgetsPage)
    EVT_BUTTON(SliderPage_Reset, SliderWidgetsPage::OnButtonReset)
    EVT_BUTTON(SliderPage_SetValue, SliderWidgetsPage::OnButtonSetValue)
    EVT_BUTTON(SliderPage_SetMinAndMax, SliderWidgetsPage::OnButtonSetMinAndMax)
    EVT_BUTTON(SliderPage_SetTickFreq, SliderWidgetsPage::OnButtonSetTickFreq)
    EVT_BUTTON(SliderPage_SetThumbLen, SliderWidgetsPage::OnButtonSetThumbLen)

    EVT_UPDATE_UI(SliderPage_SetValue, SliderWidgetsPage::OnUpdateUIValueButton)
    EVT_UPDATE_UI(SliderPage_SetMinAndMax, SliderWidgetsPage::OnUpdateUIMinMaxButton)
    EVT_UPDATE_UI(SliderPage_SetTickFreq, SliderWidgetsPage::OnUpdateUITickFreq)
    EVT_UPDATE_UI(SliderPage_SetThumbLen, SliderWidgetsPage::OnUpdateUIThumbLen)
    EVT_UPDATE_UI(SliderPage_TickFreqText, SliderWidgetsPage::OnUpdateUITickFreq)
    EVT_UPDATE_UI(SliderPage_RadioSides, SliderWidgetsPage::OnUpdateUIRadioSides)
    EVT_UPDATE_UI(SliderPage_BothSides, SliderWidgetsPage::OnUpdateUIBothSides)

    EVT_UPDATE_UI(SliderPage_Reset, SliderWidgetsPage::OnUpdateUIResetButton)

    EVT_UPDATE_UI(SliderPage_CurValueText, SliderWidgetsPage::OnUpdateUICurValueText)

    EVT_COMMAND_SCROLL(SliderPage_Slider, SliderWidgetsPage::OnSlider)

    EVT_CHECKBOX(-1, SliderWidgetsPage::OnCheckOrRadioBox)
    EVT_RADIOBOX(-1, SliderWidgetsPage::OnCheckOrRadioBox)
END_EVENT_TABLE()

// ============================================================================
// implementation
// ============================================================================

IMPLEMENT_WIDGETS_PAGE(SliderWidgetsPage, _T("Slider"));

SliderWidgetsPage::SliderWidgetsPage(wxNotebook *notebook,
                                       wxImageList *imaglist)
                  : WidgetsPage(notebook)
{
    imaglist->Add(wxBitmap(slider_xpm));

    // init everything
    m_min = 0;
    m_max = 100;

    m_chkVert =
    m_chkTicks =
    m_chkLabels =
    m_chkBothSides = (wxCheckBox *)NULL;

    m_radioSides = (wxRadioBox *)NULL;

    m_slider = (wxSlider *)NULL;
    m_sizerSlider = (wxSizer *)NULL;

    wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);

    // left pane
    wxStaticBox *box = new wxStaticBox(this, -1, _T("&Set style"));
    wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);

    m_chkVert = CreateCheckBoxAndAddToSizer(sizerLeft, _T("&Vertical"));
    m_chkTicks = CreateCheckBoxAndAddToSizer(sizerLeft, _T("Show &ticks"));
    m_chkLabels = CreateCheckBoxAndAddToSizer(sizerLeft, _T("Show &labels"));
    static const wxString sides[] =
    {
        _T("top"),
        _T("bottom"),
        _T("left"),
        _T("right"),
    };
    m_radioSides = new wxRadioBox(this, SliderPage_RadioSides, _T("&Ticks/Labels"),
                                 wxDefaultPosition, wxDefaultSize,
                                 WXSIZEOF(sides), sides,
                                 1, wxRA_SPECIFY_COLS);
    sizerLeft->Add(m_radioSides, 0, wxGROW | wxALL, 5);
    m_chkBothSides = CreateCheckBoxAndAddToSizer
                     (sizerLeft, _T("&Both sides"), SliderPage_BothSides);
#if wxUSE_TOOLTIPS
    m_chkBothSides->SetToolTip( _T("\"Both sides\" is only supported \nin Win95 and Universal") );
#endif // wxUSE_TOOLTIPS

    sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer

    wxButton *btn = new wxButton(this, SliderPage_Reset, _T("&Reset"));
    sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);

    // middle pane
    wxStaticBox *box2 = new wxStaticBox(this, -1, _T("&Change slider value"));
    wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);

    wxTextCtrl *text;
    wxSizer *sizerRow = CreateSizerWithTextAndLabel(_T("Current value"),
                                                    SliderPage_CurValueText,
                                                    &text);
    text->SetEditable(FALSE);

    sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);

    sizerRow = CreateSizerWithTextAndButton(SliderPage_SetValue,
                                            _T("Set &value"),
                                            SliderPage_ValueText,
                                            &m_textValue);
    sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);

    sizerRow = CreateSizerWithTextAndButton(SliderPage_SetMinAndMax,
                                            _T("&Min and max"),
                                            SliderPage_MinText,
                                            &m_textMin);

    m_textMax = new wxTextCtrl(this, SliderPage_MaxText, _T(""));
    sizerRow->Add(m_textMax, 1, wxLEFT | wxALIGN_CENTRE_VERTICAL, 5);

    m_textMin->SetValue( wxString::Format(_T("%d"), m_min) );
    m_textMax->SetValue( wxString::Format(_T("%d"), m_max) );

    sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);

    sizerRow = CreateSizerWithTextAndButton(SliderPage_SetTickFreq,
                                            _T("Tick &frequency"),
                                            SliderPage_TickFreqText,
                                            &m_textTickFreq);

    m_textTickFreq->SetValue(_T("10"));

    sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);

    sizerRow = CreateSizerWithTextAndButton(SliderPage_SetThumbLen,
                                            _T("Thumb &lenght"),
                                            SliderPage_ThumbLenText,
                                            &m_textThumbLen);

    sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);

    // right pane
    wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
    sizerRight->SetMinSize(150, 40);
    m_sizerSlider = sizerRight; // save it to modify it later

    Reset();
    CreateSlider();

    // the 3 panes panes compose the window
    sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
    sizerTop->Add(sizerMiddle, 0, wxGROW | wxALL, 10);
    sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10);

    // final initializations
    SetAutoLayout(TRUE);
    SetSizer(sizerTop);

    sizerTop->Fit(this);
}

SliderWidgetsPage::~SliderWidgetsPage()
{
}

// ----------------------------------------------------------------------------
// operations
// ----------------------------------------------------------------------------

void SliderWidgetsPage::Reset()
{
    m_chkVert->SetValue(FALSE);
    m_chkTicks->SetValue(TRUE);
    m_chkLabels->SetValue(TRUE);
    m_chkBothSides->SetValue(FALSE);

    m_radioSides->SetSelection(StaticSides_Top);
}

void SliderWidgetsPage::CreateSlider()
{
    int flags = 0;

    bool isVert = m_chkVert->GetValue();
    if ( isVert )
        flags |= wxSL_VERTICAL;
    else
        flags |= wxSL_HORIZONTAL;

    if ( m_chkLabels->GetValue() )
    {
        flags |= wxSL_LABELS;
    }

    if ( m_chkTicks->GetValue() )
    {
        flags |= wxSL_AUTOTICKS;
    }

    switch ( m_radioSides->GetSelection() )
    {
        case StaticSides_Top:
            flags |= wxSL_TOP;
            break;
        case StaticSides_Left:
            flags |= wxSL_LEFT;
            break;
        case StaticSides_Bottom:
            flags |= wxSL_BOTTOM;
            break;
        case StaticSides_Right:
            flags |= wxSL_RIGHT;
            break;
        default:
            wxFAIL_MSG(_T("unexpected radiobox selection"));
            // fall through
    }

    if ( m_chkBothSides->GetValue() )
    {
        flags |= wxSL_BOTH;
    }

    int val = m_min;
    if ( m_slider )
    {
        int valOld = m_slider->GetValue();
        if ( !IsValidValue(valOld) )
        {
            val = valOld;
        }

        m_sizerSlider->Detach( m_slider );

        if ( m_sizerSlider->GetChildren().GetCount() )
        {
            // we have 2 spacers, remove them too
            m_sizerSlider->Remove( 0 );
            m_sizerSlider->Remove( 0 );
        }

        delete m_slider;
    }

    m_slider = new wxSlider(this, SliderPage_Slider,
                            val, m_min, m_max,
                            wxDefaultPosition, wxDefaultSize,
                            flags);

    if ( isVert )
    {
        m_sizerSlider->Add(0, 0, 1);
        m_sizerSlider->Add(m_slider, 0, wxGROW | wxALL, 5);
        m_sizerSlider->Add(0, 0, 1);
    }
    else
    {
        m_sizerSlider->Add(m_slider, 1, wxCENTRE | wxALL, 5);
    }

    if ( m_chkTicks->GetValue() )
    {
        DoSetTickFreq();
    }

    m_sizerSlider->Layout();
}

void SliderWidgetsPage::DoSetTickFreq()
{
    long freq;
    if ( !m_textTickFreq->GetValue().ToLong(&freq) )
    {
        wxLogWarning(_T("Invalid slider tick frequency"));

        return;
    }

    m_slider->SetTickFreq(freq, 0 /* unused */);
}

void SliderWidgetsPage::DoSetThumbLen()
{
    long len;
    if ( !m_textThumbLen->GetValue().ToLong(&len) )
    {
        wxLogWarning(_T("Invalid slider thumb lenght"));

        return;
    }

    m_slider->SetThumbLength(len);
}

// ----------------------------------------------------------------------------
// event handlers
// ----------------------------------------------------------------------------

void SliderWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
{
    Reset();

    CreateSlider();
}

void SliderWidgetsPage::OnButtonSetTickFreq(wxCommandEvent& WXUNUSED(event))
{
    DoSetTickFreq();
}

void SliderWidgetsPage::OnButtonSetThumbLen(wxCommandEvent& WXUNUSED(event))
{
    DoSetThumbLen();
}

void SliderWidgetsPage::OnButtonSetMinAndMax(wxCommandEvent& WXUNUSED(event))
{
    long minNew,
         maxNew = 0; // init to suppress compiler warning
    if ( !m_textMin->GetValue().ToLong(&minNew) ||
         !m_textMax->GetValue().ToLong(&maxNew) ||
         minNew >= maxNew )
    {
        wxLogWarning(_T("Invalid min/max values for the slider."));

        return;
    }

    m_min = minNew;
    m_max = maxNew;

    m_slider->SetRange(minNew, maxNew);
}

void SliderWidgetsPage::OnButtonSetValue(wxCommandEvent& WXUNUSED(event))
{
    long val;
    if ( !m_textValue->GetValue().ToLong(&val) || !IsValidValue(val) )
    {
        wxLogWarning(_T("Invalid slider value."));

        return;
    }

    m_slider->SetValue(val);
}

void SliderWidgetsPage::OnUpdateUIValueButton(wxUpdateUIEvent& event)
{
    long val;
    event.Enable( m_textValue->GetValue().ToLong(&val) && IsValidValue(val) );
}

void SliderWidgetsPage::OnUpdateUITickFreq(wxUpdateUIEvent& event)
{
    long freq;
    event.Enable( m_chkTicks->GetValue() &&
                  m_textTickFreq->GetValue().ToLong(&freq) &&
                  (freq > 0) && (freq <= m_max - m_min) );
}

void SliderWidgetsPage::OnUpdateUIThumbLen(wxUpdateUIEvent& event)
{
    long val;
    event.Enable( m_textThumbLen->GetValue().ToLong(&val));
}

void SliderWidgetsPage::OnUpdateUIMinMaxButton(wxUpdateUIEvent& event)
{
    long mn, mx;
    event.Enable( m_textMin->GetValue().ToLong(&mn) &&
                  m_textMax->GetValue().ToLong(&mx) &&
                  mn < mx);
}

void SliderWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
{
    event.Enable( m_chkVert->GetValue() ||
                  !m_chkTicks->GetValue() ||
                  !m_chkLabels->GetValue() ||
                  m_chkBothSides->GetValue() );
}

void SliderWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& event)
{
    CreateSlider();
}

void SliderWidgetsPage::OnUpdateUICurValueText(wxUpdateUIEvent& event)
{
    event.SetText( wxString::Format(_T("%d"), m_slider->GetValue()) );
}

void SliderWidgetsPage::OnUpdateUIRadioSides(wxUpdateUIEvent& event)
{
    event.Enable( m_chkLabels->GetValue() || m_chkTicks->GetValue() );
}

void SliderWidgetsPage::OnUpdateUIBothSides(wxUpdateUIEvent& event)
{
#if defined(__WIN95__) || defined(__WXUNIVERSAL__)
    event.Enable( m_chkTicks->GetValue() );
#else
    event.Enable( FALSE );
#endif // defined(__WIN95__) || defined(__WXUNIVERSAL__)
}

void SliderWidgetsPage::OnSlider(wxScrollEvent& event)
{
    wxASSERT_MSG( event.GetInt() == m_slider->GetValue(),
                  wxT("slider value should be the same") );

    wxEventType eventType = event.GetEventType();

    /*
        This array takes the EXACT order of the declarations in
        include/wx/event.h
        (section "wxScrollBar and wxSlider event identifiers")
    */
    static const wxChar *eventNames[] =
    {
        wxT("wxEVT_SCROLL_TOP"),
        wxT("wxEVT_SCROLL_BOTTOM"),
        wxT("wxEVT_SCROLL_LINEUP"),
        wxT("wxEVT_SCROLL_LINEDOWN"),
        wxT("wxEVT_SCROLL_PAGEUP"),
        wxT("wxEVT_SCROLL_PAGEDOWN"),
        wxT("wxEVT_SCROLL_THUMBTRACK"),
        wxT("wxEVT_SCROLL_THUMBRELEASE"),
        wxT("wxEVT_SCROLL_ENDSCROLL")
    };

    int index = eventType - wxEVT_SCROLL_TOP;

    /*
        If this assert is triggered, there is an unknown slider event which
        should be added to the above eventNames array.
    */
    wxASSERT_MSG(index >= 0 && (size_t)index < WXSIZEOF(eventNames),
                 wxT("Unknown slider event") );


    static int s_numSliderEvents = 0;

    wxLogMessage(wxT("Slider event #%d: %s (pos = %d)"),
                 s_numSliderEvents++,
                 eventNames[index],
                 event.GetPosition());
}
Commit	Line	Data
32b8ec41 VZ	1	/////////////////////////////////////////////////////////////////////////////
	2	// Program: wxWindows Widgets Sample
	3	// Name: slider.cpp
	4	// Purpose: Part of the widgets sample showing wxSlider
	5	// Author: Vadim Zeitlin
	6	// Created: 16.04.01
	7	// Id: $Id$
	8	// Copyright: (c) 2001 Vadim Zeitlin
	9	// License: wxWindows license
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
	20	// for compilers that support precompilation, includes "wx/wx.h".
	21	#include "wx/wxprec.h"
	22
	23	#ifdef __BORLANDC__
	24	#pragma hdrstop
	25	#endif
	26
	27	// for all others, include the necessary headers
	28	#ifndef WX_PRECOMP
	29	#include "wx/log.h"
	30
3bb70c40	31	#include "wx/bitmap.h"
32b8ec41 VZ	32	#include "wx/button.h"
	33	#include "wx/checkbox.h"
	34	#include "wx/radiobox.h"
	35	#include "wx/slider.h"
	36	#include "wx/statbox.h"
	37	#include "wx/textctrl.h"
	38	#endif
	39
53b98211 JS	40	#if wxUSE_TOOLTIPS
	41	#include "wx/tooltip.h"
	42	#endif
	43
32b8ec41 VZ	44	#include "wx/sizer.h"
	45
	46	#include "widgets.h"
32b8ec41 VZ	47	#include "icons/slider.xpm"
	48
	49	// ----------------------------------------------------------------------------
	50	// constants
	51	// ----------------------------------------------------------------------------
	52
	53	// control ids
	54	enum
	55	{
d79b005a	56	SliderPage_Reset = wxID_HIGHEST,
32b8ec41 VZ	57	SliderPage_Clear,
	58	SliderPage_SetValue,
	59	SliderPage_SetMinAndMax,
	60	SliderPage_SetTickFreq,
53b98211	61	SliderPage_SetThumbLen,
32b8ec41 VZ	62	SliderPage_CurValueText,
	63	SliderPage_ValueText,
	64	SliderPage_MinText,
	65	SliderPage_MaxText,
	66	SliderPage_TickFreqText,
53b98211 JS	67	SliderPage_ThumbLenText,
	68	SliderPage_RadioSides,
	69	SliderPage_BothSides,
32b8ec41 VZ	70	SliderPage_Slider
	71	};
	72
53b98211 JS	73	// sides radiobox values
	74	enum
	75	{
	76	StaticSides_Top,
	77	StaticSides_Bottom,
	78	StaticSides_Left,
	79	StaticSides_Right
	80	};
	81
32b8ec41 VZ	82	// ----------------------------------------------------------------------------
	83	// SliderWidgetsPage
	84	// ----------------------------------------------------------------------------
	85
	86	class SliderWidgetsPage : public WidgetsPage
	87	{
	88	public:
	89	SliderWidgetsPage(wxNotebook notebook, wxImageList imaglist);
	90	virtual ~SliderWidgetsPage();
	91
	92	protected:
	93	// event handlers
	94	void OnButtonReset(wxCommandEvent& event);
	95	void OnButtonClear(wxCommandEvent& event);
	96	void OnButtonSetValue(wxCommandEvent& event);
	97	void OnButtonSetMinAndMax(wxCommandEvent& event);
	98	void OnButtonSetTickFreq(wxCommandEvent& event);
53b98211	99	void OnButtonSetThumbLen(wxCommandEvent& event);
32b8ec41 VZ	100
	101	void OnCheckOrRadioBox(wxCommandEvent& event);
	102
d79b005a	103	void OnSlider(wxScrollEvent& event);
32b8ec41	104
32b8ec41 VZ	105	void OnUpdateUIValueButton(wxUpdateUIEvent& event);
	106	void OnUpdateUIMinMaxButton(wxUpdateUIEvent& event);
	107	void OnUpdateUITickFreq(wxUpdateUIEvent& event);
53b98211 JS	108	void OnUpdateUIThumbLen(wxUpdateUIEvent& event);
	109	void OnUpdateUIRadioSides(wxUpdateUIEvent& event);
	110	void OnUpdateUIBothSides(wxUpdateUIEvent& event);
32b8ec41 VZ	111
	112	void OnUpdateUIResetButton(wxUpdateUIEvent& event);
	113
	114	void OnUpdateUICurValueText(wxUpdateUIEvent& event);
	115
	116	// reset the slider parameters
	117	void Reset();
	118
	119	// (re)create the slider
	120	void CreateSlider();
	121
	122	// set the tick frequency from the text field value
	123	void DoSetTickFreq();
	124
53b98211 JS	125	// set the thumb len from the text field value
	126	void DoSetThumbLen();
	127
32b8ec41 VZ	128	// is this slider value in range?
	129	bool IsValidValue(int val) const
	130	{ return (val >= m_min) && (val <= m_max); }
	131
	132	// the slider range
	133	int m_min, m_max;
	134
	135	// the controls
	136	// ------------
	137
	138	// the check/radio boxes for styles
	139	wxCheckBox *m_chkLabels,
32b8ec41	140	*m_chkVert,
53b98211 JS	141	*m_chkTicks,
	142	*m_chkBothSides;
	143
	144	wxRadioBox *m_radioSides;
32b8ec41 VZ	145
	146	// the slider itself and the sizer it is in
	147	wxSlider *m_slider;
	148	wxSizer *m_sizerSlider;
	149
	150	// the text entries for set value/range
	151	wxTextCtrl *m_textValue,
	152	*m_textMin,
	153	*m_textMax,
53b98211 JS	154	*m_textTickFreq,
53b98211 JS	155	*m_textThumbLen;
32b8ec41 VZ	156
32b8ec41 VZ	157	private:
5e173f35 GD	158	DECLARE_EVENT_TABLE()
5e173f35 GD	159	DECLARE_WIDGETS_PAGE(SliderWidgetsPage)
32b8ec41 VZ	160	};
	161
	162	// ----------------------------------------------------------------------------
	163	// event tables
	164	// ----------------------------------------------------------------------------
	165
	166	BEGIN_EVENT_TABLE(SliderWidgetsPage, WidgetsPage)
	167	EVT_BUTTON(SliderPage_Reset, SliderWidgetsPage::OnButtonReset)
	168	EVT_BUTTON(SliderPage_SetValue, SliderWidgetsPage::OnButtonSetValue)
	169	EVT_BUTTON(SliderPage_SetMinAndMax, SliderWidgetsPage::OnButtonSetMinAndMax)
	170	EVT_BUTTON(SliderPage_SetTickFreq, SliderWidgetsPage::OnButtonSetTickFreq)
53b98211	171	EVT_BUTTON(SliderPage_SetThumbLen, SliderWidgetsPage::OnButtonSetThumbLen)
32b8ec41 VZ	172
	173	EVT_UPDATE_UI(SliderPage_SetValue, SliderWidgetsPage::OnUpdateUIValueButton)
	174	EVT_UPDATE_UI(SliderPage_SetMinAndMax, SliderWidgetsPage::OnUpdateUIMinMaxButton)
	175	EVT_UPDATE_UI(SliderPage_SetTickFreq, SliderWidgetsPage::OnUpdateUITickFreq)
53b98211	176	EVT_UPDATE_UI(SliderPage_SetThumbLen, SliderWidgetsPage::OnUpdateUIThumbLen)
32b8ec41	177	EVT_UPDATE_UI(SliderPage_TickFreqText, SliderWidgetsPage::OnUpdateUITickFreq)
53b98211 JS	178	EVT_UPDATE_UI(SliderPage_RadioSides, SliderWidgetsPage::OnUpdateUIRadioSides)
53b98211 JS	179	EVT_UPDATE_UI(SliderPage_BothSides, SliderWidgetsPage::OnUpdateUIBothSides)
32b8ec41 VZ	180
	181	EVT_UPDATE_UI(SliderPage_Reset, SliderWidgetsPage::OnUpdateUIResetButton)
	182
	183	EVT_UPDATE_UI(SliderPage_CurValueText, SliderWidgetsPage::OnUpdateUICurValueText)
	184
d79b005a	185	EVT_COMMAND_SCROLL(SliderPage_Slider, SliderWidgetsPage::OnSlider)
32b8ec41 VZ	186
	187	EVT_CHECKBOX(-1, SliderWidgetsPage::OnCheckOrRadioBox)
	188	EVT_RADIOBOX(-1, SliderWidgetsPage::OnCheckOrRadioBox)
	189	END_EVENT_TABLE()
	190
	191	// ============================================================================
	192	// implementation
	193	// ============================================================================
	194
	195	IMPLEMENT_WIDGETS_PAGE(SliderWidgetsPage, _T("Slider"));
	196
	197	SliderWidgetsPage::SliderWidgetsPage(wxNotebook *notebook,
	198	wxImageList *imaglist)
	199	: WidgetsPage(notebook)
	200	{
	201	imaglist->Add(wxBitmap(slider_xpm));
	202
	203	// init everything
	204	m_min = 0;
	205	m_max = 100;
	206
	207	m_chkVert =
	208	m_chkTicks =
	209	m_chkLabels =
53b98211 JS	210	m_chkBothSides = (wxCheckBox *)NULL;
	211
	212	m_radioSides = (wxRadioBox *)NULL;
32b8ec41 VZ	213
	214	m_slider = (wxSlider *)NULL;
	215	m_sizerSlider = (wxSizer *)NULL;
	216
	217	wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
	218
	219	// left pane
	220	wxStaticBox *box = new wxStaticBox(this, -1, _T("&Set style"));
	221	wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
	222
	223	m_chkVert = CreateCheckBoxAndAddToSizer(sizerLeft, _T("&Vertical"));
	224	m_chkTicks = CreateCheckBoxAndAddToSizer(sizerLeft, _T("Show &ticks"));
	225	m_chkLabels = CreateCheckBoxAndAddToSizer(sizerLeft, _T("Show &labels"));
53b98211 JS	226	static const wxString sides[] =
	227	{
	228	_T("top"),
	229	_T("bottom"),
	230	_T("left"),
	231	_T("right"),
	232	};
	233	m_radioSides = new wxRadioBox(this, SliderPage_RadioSides, _T("&Ticks/Labels"),
	234	wxDefaultPosition, wxDefaultSize,
	235	WXSIZEOF(sides), sides,
	236	1, wxRA_SPECIFY_COLS);
	237	sizerLeft->Add(m_radioSides, 0, wxGROW \| wxALL, 5);
	238	m_chkBothSides = CreateCheckBoxAndAddToSizer
	239	(sizerLeft, _T("&Both sides"), SliderPage_BothSides);
	240	#if wxUSE_TOOLTIPS
	241	m_chkBothSides->SetToolTip( _T("\"Both sides\" is only supported \nin Win95 and Universal") );
	242	#endif // wxUSE_TOOLTIPS
32b8ec41 VZ	243
	244	sizerLeft->Add(5, 5, 0, wxGROW \| wxALL, 5); // spacer
	245
	246	wxButton *btn = new wxButton(this, SliderPage_Reset, _T("&Reset"));
	247	sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL \| wxALL, 15);
	248
	249	// middle pane
	250	wxStaticBox *box2 = new wxStaticBox(this, -1, _T("&Change slider value"));
	251	wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
	252
	253	wxTextCtrl *text;
	254	wxSizer *sizerRow = CreateSizerWithTextAndLabel(_T("Current value"),
	255	SliderPage_CurValueText,
	256	&text);
	257	text->SetEditable(FALSE);
	258
	259	sizerMiddle->Add(sizerRow, 0, wxALL \| wxGROW, 5);
	260
	261	sizerRow = CreateSizerWithTextAndButton(SliderPage_SetValue,
	262	_T("Set &value"),
	263	SliderPage_ValueText,
	264	&m_textValue);
	265	sizerMiddle->Add(sizerRow, 0, wxALL \| wxGROW, 5);
	266
	267	sizerRow = CreateSizerWithTextAndButton(SliderPage_SetMinAndMax,
	268	_T("&Min and max"),
	269	SliderPage_MinText,
	270	&m_textMin);
	271
	272	m_textMax = new wxTextCtrl(this, SliderPage_MaxText, _T(""));
	273	sizerRow->Add(m_textMax, 1, wxLEFT \| wxALIGN_CENTRE_VERTICAL, 5);
	274
aec18ff7 MB	275	m_textMin->SetValue( wxString::Format(_T("%d"), m_min) );
aec18ff7 MB	276	m_textMax->SetValue( wxString::Format(_T("%d"), m_max) );
32b8ec41 VZ	277
	278	sizerMiddle->Add(sizerRow, 0, wxALL \| wxGROW, 5);
	279
	280	sizerRow = CreateSizerWithTextAndButton(SliderPage_SetTickFreq,
	281	_T("Tick &frequency"),
	282	SliderPage_TickFreqText,
	283	&m_textTickFreq);
	284
	285	m_textTickFreq->SetValue(_T("10"));
	286
	287	sizerMiddle->Add(sizerRow, 0, wxALL \| wxGROW, 5);
	288
53b98211 JS	289	sizerRow = CreateSizerWithTextAndButton(SliderPage_SetThumbLen,
	290	_T("Thumb &lenght"),
	291	SliderPage_ThumbLenText,
	292	&m_textThumbLen);
	293
	294	sizerMiddle->Add(sizerRow, 0, wxALL \| wxGROW, 5);
	295
32b8ec41 VZ	296	// right pane
32b8ec41 VZ	297	wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
53b98211	298	sizerRight->SetMinSize(150, 40);
32b8ec41 VZ	299	m_sizerSlider = sizerRight; // save it to modify it later
	300
	301	Reset();
	302	CreateSlider();
	303
	304	// the 3 panes panes compose the window
	305	sizerTop->Add(sizerLeft, 0, wxGROW \| (wxALL & ~wxLEFT), 10);
7b127900	306	sizerTop->Add(sizerMiddle, 0, wxGROW \| wxALL, 10);
32b8ec41 VZ	307	sizerTop->Add(sizerRight, 1, wxGROW \| (wxALL & ~wxRIGHT), 10);
	308
	309	// final initializations
	310	SetAutoLayout(TRUE);
	311	SetSizer(sizerTop);
	312
	313	sizerTop->Fit(this);
	314	}
	315
	316	SliderWidgetsPage::~SliderWidgetsPage()
	317	{
	318	}
	319
	320	// ----------------------------------------------------------------------------
	321	// operations
	322	// ----------------------------------------------------------------------------
	323
	324	void SliderWidgetsPage::Reset()
	325	{
32b8ec41	326	m_chkVert->SetValue(FALSE);
53b98211 JS	327	m_chkTicks->SetValue(TRUE);
	328	m_chkLabels->SetValue(TRUE);
	329	m_chkBothSides->SetValue(FALSE);
	330
	331	m_radioSides->SetSelection(StaticSides_Top);
32b8ec41 VZ	332	}
	333
	334	void SliderWidgetsPage::CreateSlider()
	335	{
	336	int flags = 0;
	337
	338	bool isVert = m_chkVert->GetValue();
	339	if ( isVert )
	340	flags \|= wxSL_VERTICAL;
	341	else
	342	flags \|= wxSL_HORIZONTAL;
	343
	344	if ( m_chkLabels->GetValue() )
	345	{
	346	flags \|= wxSL_LABELS;
32b8ec41 VZ	347	}
	348
	349	if ( m_chkTicks->GetValue() )
	350	{
	351	flags \|= wxSL_AUTOTICKS;
	352	}
	353
53b98211 JS	354	switch ( m_radioSides->GetSelection() )
	355	{
	356	case StaticSides_Top:
	357	flags \|= wxSL_TOP;
	358	break;
	359	case StaticSides_Left:
	360	flags \|= wxSL_LEFT;
	361	break;
	362	case StaticSides_Bottom:
	363	flags \|= wxSL_BOTTOM;
	364	break;
	365	case StaticSides_Right:
	366	flags \|= wxSL_RIGHT;
	367	break;
	368	default:
	369	wxFAIL_MSG(_T("unexpected radiobox selection"));
	370	// fall through
	371	}
	372
	373	if ( m_chkBothSides->GetValue() )
	374	{
	375	flags \|= wxSL_BOTH;
	376	}
	377
32b8ec41 VZ	378	int val = m_min;
	379	if ( m_slider )
	380	{
	381	int valOld = m_slider->GetValue();
	382	if ( !IsValidValue(valOld) )
	383	{
	384	val = valOld;
	385	}
	386
12a3f227	387	m_sizerSlider->Detach( m_slider );
32b8ec41 VZ	388
	389	if ( m_sizerSlider->GetChildren().GetCount() )
	390	{
	391	// we have 2 spacers, remove them too
9dd96c0f VZ	392	m_sizerSlider->Remove( 0 );
9dd96c0f VZ	393	m_sizerSlider->Remove( 0 );
32b8ec41 VZ	394	}
	395
	396	delete m_slider;
	397	}
	398
	399	m_slider = new wxSlider(this, SliderPage_Slider,
	400	val, m_min, m_max,
	401	wxDefaultPosition, wxDefaultSize,
	402	flags);
	403
	404	if ( isVert )
	405	{
	406	m_sizerSlider->Add(0, 0, 1);
	407	m_sizerSlider->Add(m_slider, 0, wxGROW \| wxALL, 5);
	408	m_sizerSlider->Add(0, 0, 1);
	409	}
	410	else
	411	{
	412	m_sizerSlider->Add(m_slider, 1, wxCENTRE \| wxALL, 5);
	413	}
	414
	415	if ( m_chkTicks->GetValue() )
	416	{
	417	DoSetTickFreq();
	418	}
	419
	420	m_sizerSlider->Layout();
	421	}
	422
	423	void SliderWidgetsPage::DoSetTickFreq()
	424	{
	425	long freq;
	426	if ( !m_textTickFreq->GetValue().ToLong(&freq) )
	427	{
	428	wxLogWarning(_T("Invalid slider tick frequency"));
	429
	430	return;
	431	}
	432
	433	m_slider->SetTickFreq(freq, 0 /* unused */);
	434	}
	435
53b98211 JS	436	void SliderWidgetsPage::DoSetThumbLen()
	437	{
	438	long len;
	439	if ( !m_textThumbLen->GetValue().ToLong(&len) )
	440	{
	441	wxLogWarning(_T("Invalid slider thumb lenght"));
	442
	443	return;
	444	}
	445
	446	m_slider->SetThumbLength(len);
	447	}
	448
32b8ec41 VZ	449	// ----------------------------------------------------------------------------
	450	// event handlers
	451	// ----------------------------------------------------------------------------
	452
	453	void SliderWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
	454	{
	455	Reset();
	456
	457	CreateSlider();
	458	}
	459
	460	void SliderWidgetsPage::OnButtonSetTickFreq(wxCommandEvent& WXUNUSED(event))
	461	{
	462	DoSetTickFreq();
	463	}
	464
53b98211 JS	465	void SliderWidgetsPage::OnButtonSetThumbLen(wxCommandEvent& WXUNUSED(event))
	466	{
	467	DoSetThumbLen();
	468	}
	469
32b8ec41 VZ	470	void SliderWidgetsPage::OnButtonSetMinAndMax(wxCommandEvent& WXUNUSED(event))
	471	{
	472	long minNew,
	473	maxNew = 0; // init to suppress compiler warning
	474	if ( !m_textMin->GetValue().ToLong(&minNew) \|\|
	475	!m_textMax->GetValue().ToLong(&maxNew) \|\|
	476	minNew >= maxNew )
	477	{
	478	wxLogWarning(_T("Invalid min/max values for the slider."));
	479
	480	return;
	481	}
	482
	483	m_min = minNew;
	484	m_max = maxNew;
	485
	486	m_slider->SetRange(minNew, maxNew);
	487	}
	488
	489	void SliderWidgetsPage::OnButtonSetValue(wxCommandEvent& WXUNUSED(event))
	490	{
	491	long val;
	492	if ( !m_textValue->GetValue().ToLong(&val) \|\| !IsValidValue(val) )
	493	{
	494	wxLogWarning(_T("Invalid slider value."));
	495
	496	return;
	497	}
	498
	499	m_slider->SetValue(val);
	500	}
	501
	502	void SliderWidgetsPage::OnUpdateUIValueButton(wxUpdateUIEvent& event)
	503	{
	504	long val;
	505	event.Enable( m_textValue->GetValue().ToLong(&val) && IsValidValue(val) );
	506	}
	507
	508	void SliderWidgetsPage::OnUpdateUITickFreq(wxUpdateUIEvent& event)
	509	{
	510	long freq;
	511	event.Enable( m_chkTicks->GetValue() &&
	512	m_textTickFreq->GetValue().ToLong(&freq) &&
	513	(freq > 0) && (freq <= m_max - m_min) );
	514	}
	515
53b98211 JS	516	void SliderWidgetsPage::OnUpdateUIThumbLen(wxUpdateUIEvent& event)
	517	{
	518	long val;
	519	event.Enable( m_textThumbLen->GetValue().ToLong(&val));
	520	}
	521
32b8ec41 VZ	522	void SliderWidgetsPage::OnUpdateUIMinMaxButton(wxUpdateUIEvent& event)
	523	{
	524	long mn, mx;
	525	event.Enable( m_textMin->GetValue().ToLong(&mn) &&
	526	m_textMax->GetValue().ToLong(&mx) &&
	527	mn < mx);
	528	}
	529
	530	void SliderWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
	531	{
	532	event.Enable( m_chkVert->GetValue() \|\|
53b98211	533	!m_chkTicks->GetValue() \|\|
32b8ec41	534	!m_chkLabels->GetValue() \|\|
53b98211	535	m_chkBothSides->GetValue() );
32b8ec41 VZ	536	}
	537
	538	void SliderWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& event)
	539	{
	540	CreateSlider();
	541	}
	542
	543	void SliderWidgetsPage::OnUpdateUICurValueText(wxUpdateUIEvent& event)
	544	{
aec18ff7	545	event.SetText( wxString::Format(_T("%d"), m_slider->GetValue()) );
32b8ec41 VZ	546	}
32b8ec41 VZ	547
53b98211 JS	548	void SliderWidgetsPage::OnUpdateUIRadioSides(wxUpdateUIEvent& event)
	549	{
	550	event.Enable( m_chkLabels->GetValue() \|\| m_chkTicks->GetValue() );
	551	}
	552
	553	void SliderWidgetsPage::OnUpdateUIBothSides(wxUpdateUIEvent& event)
32b8ec41	554	{
53b98211 JS	555	#if defined(__WIN95__) \|\| defined(__WXUNIVERSAL__)
	556	event.Enable( m_chkTicks->GetValue() );
	557	#else
	558	event.Enable( FALSE );
	559	#endif // defined(__WIN95__) \|\| defined(__WXUNIVERSAL__)
32b8ec41 VZ	560	}
32b8ec41 VZ	561
d79b005a	562	void SliderWidgetsPage::OnSlider(wxScrollEvent& event)
32b8ec41	563	{
2b5f62a0 VZ	564	wxASSERT_MSG( event.GetInt() == m_slider->GetValue(),
2b5f62a0 VZ	565	wxT("slider value should be the same") );
32b8ec41	566
d79b005a VZ	567	wxEventType eventType = event.GetEventType();
	568
	569	/*
	570	This array takes the EXACT order of the declarations in
	571	include/wx/event.h
	572	(section "wxScrollBar and wxSlider event identifiers")
	573	*/
	574	static const wxChar *eventNames[] =
	575	{
	576	wxT("wxEVT_SCROLL_TOP"),
	577	wxT("wxEVT_SCROLL_BOTTOM"),
	578	wxT("wxEVT_SCROLL_LINEUP"),
	579	wxT("wxEVT_SCROLL_LINEDOWN"),
	580	wxT("wxEVT_SCROLL_PAGEUP"),
	581	wxT("wxEVT_SCROLL_PAGEDOWN"),
	582	wxT("wxEVT_SCROLL_THUMBTRACK"),
	583	wxT("wxEVT_SCROLL_THUMBRELEASE"),
	584	wxT("wxEVT_SCROLL_ENDSCROLL")
	585	};
	586
	587	int index = eventType - wxEVT_SCROLL_TOP;
	588
	589	/*
	590	If this assert is triggered, there is an unknown slider event which
	591	should be added to the above eventNames array.
	592	*/
8b1d8f36	593	wxASSERT_MSG(index >= 0 && (size_t)index < WXSIZEOF(eventNames),
d79b005a VZ	594	wxT("Unknown slider event") );
	595
	596
	597	static int s_numSliderEvents = 0;
	598
	599	wxLogMessage(wxT("Slider event #%d: %s (pos = %d)"),
580d78b3	600	s_numSliderEvents++,
d79b005a VZ	601	eventNames[index],
d79b005a VZ	602	event.GetPosition());
32b8ec41 VZ	603	}
32b8ec41 VZ	604