src/gtk/spinctrl.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/gtk/spinctrl.cpp
// Purpose:     wxSpinCtrl
// Author:      Robert
// Modified by:
// RCS-ID:      $Id$
// Copyright:   (c) Robert Roebling
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

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

#if wxUSE_SPINCTRL

#include "wx/spinctrl.h"

#ifndef WX_PRECOMP
    #include "wx/textctrl.h"    // for wxEVT_TEXT
    #include "wx/utils.h"
    #include "wx/wxcrtvararg.h"
#endif

#include <gtk/gtk.h>
#include "wx/gtk/private.h"
#include "wx/gtk/private/gtk2-compat.h"

//-----------------------------------------------------------------------------
// data
//-----------------------------------------------------------------------------

extern bool   g_blockEventsOnDrag;

//-----------------------------------------------------------------------------
// "value_changed"
//-----------------------------------------------------------------------------

extern "C" {
static void
gtk_value_changed(GtkSpinButton* spinbutton, wxSpinCtrlGTKBase* win)
{
    if (g_blockEventsOnDrag)
        return;

    if (wxIsKindOf(win, wxSpinCtrl))
    {
        wxSpinEvent event(wxEVT_SPINCTRL, win->GetId());
        event.SetEventObject( win );
        event.SetPosition(static_cast<wxSpinCtrl*>(win)->GetValue());
        event.SetString(gtk_entry_get_text(GTK_ENTRY(spinbutton)));
        win->HandleWindowEvent( event );
    }
    else // wxIsKindOf(win, wxSpinCtrlDouble)
    {
        wxSpinDoubleEvent event( wxEVT_SPINCTRLDOUBLE, win->GetId());
        event.SetEventObject( win );
        event.SetValue(static_cast<wxSpinCtrlDouble*>(win)->GetValue());
        event.SetString(gtk_entry_get_text(GTK_ENTRY(spinbutton)));
        win->HandleWindowEvent( event );
    }
}
}

//-----------------------------------------------------------------------------
//  "changed"
//-----------------------------------------------------------------------------

extern "C" {
static void
gtk_changed(GtkSpinButton* spinbutton, wxSpinCtrl* win)
{
    wxCommandEvent event( wxEVT_TEXT, win->GetId() );
    event.SetEventObject( win );
    event.SetString(gtk_entry_get_text(GTK_ENTRY(spinbutton)));
    event.SetInt(win->GetValue());
    win->HandleWindowEvent( event );
}
}

//-----------------------------------------------------------------------------
// wxSpinCtrlGTKBase
//-----------------------------------------------------------------------------

BEGIN_EVENT_TABLE(wxSpinCtrlGTKBase, wxSpinCtrlBase)
    EVT_CHAR(wxSpinCtrlGTKBase::OnChar)
END_EVENT_TABLE()

bool wxSpinCtrlGTKBase::Create(wxWindow *parent, wxWindowID id,
                        const wxString& value,
                        const wxPoint& pos,  const wxSize& size,
                        long style,
                        double min, double max, double initial, double inc,
                        const wxString& name)
{
    if (!PreCreation( parent, pos, size ) ||
        !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
    {
        wxFAIL_MSG( wxT("wxSpinCtrlGTKBase creation failed") );
        return false;
    }

    m_widget = gtk_spin_button_new_with_range(min, max, inc);
    g_object_ref(m_widget);

    gtk_spin_button_set_value( GTK_SPIN_BUTTON(m_widget), initial);

    gfloat align;
    if ( HasFlag(wxALIGN_RIGHT) )
        align = 1.0;
    else if ( HasFlag(wxALIGN_CENTRE) )
        align = 0.5;
    else
        align = 0.0;

    gtk_entry_set_alignment(GTK_ENTRY(m_widget), align);

    gtk_spin_button_set_wrap( GTK_SPIN_BUTTON(m_widget),
                              (int)(m_windowStyle & wxSP_WRAP) );

    g_signal_connect_after(m_widget, "value_changed", G_CALLBACK(gtk_value_changed), this);
    g_signal_connect_after(m_widget, "changed", G_CALLBACK(gtk_changed), this);

    m_parent->DoAddChild( this );

    PostCreation(size);

    if (!value.empty())
    {
        SetValue(value);
    }

    return true;
}

double wxSpinCtrlGTKBase::DoGetValue() const
{
    wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );

    // Get value directly from current control text, just as
    // gtk_spin_button_update() would do. Calling gtk_spin_button_update() causes
    // a redraw, which causes an idle event, so if GetValue() is called from
    // a UI update handler, you get a never ending sequence of idle events. It
    // also forces the text into valid range, which wxMSW GetValue() does not do.
    static unsigned sig_id;
    if (sig_id == 0)
        sig_id = g_signal_lookup("input", GTK_TYPE_SPIN_BUTTON);
    double value;
    int handled = 0;
    g_signal_emit(m_widget, sig_id, 0, &value, &handled);
    if (!handled)
        value = g_strtod(gtk_entry_get_text(GTK_ENTRY(m_widget)), NULL);
    GtkAdjustment* adj =
        gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON(m_widget));
    const double lower = gtk_adjustment_get_lower(adj);
    const double upper = gtk_adjustment_get_upper(adj);
    if (value < lower)
        value = lower;
    else if (value > upper)
        value = upper;

    return value;
}

double wxSpinCtrlGTKBase::DoGetMin() const
{
    wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );

    double min = 0;
    gtk_spin_button_get_range( GTK_SPIN_BUTTON(m_widget), &min, NULL);
    return min;
}

double wxSpinCtrlGTKBase::DoGetMax() const
{
    wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );

    double max = 0;
    gtk_spin_button_get_range( GTK_SPIN_BUTTON(m_widget), NULL, &max);
    return max;
}

double wxSpinCtrlGTKBase::DoGetIncrement() const
{
    wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );

    double inc = 0;
    gtk_spin_button_get_increments( GTK_SPIN_BUTTON(m_widget), &inc, NULL);
    return inc;
}

bool wxSpinCtrlGTKBase::GetSnapToTicks() const
{
    wxCHECK_MSG(m_widget, false, "invalid spin button");

    return gtk_spin_button_get_snap_to_ticks( GTK_SPIN_BUTTON(m_widget) ) != 0;
}

void wxSpinCtrlGTKBase::SetValue( const wxString& value )
{
    wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );

    double n;
    if ( wxSscanf(value, "%lg", &n) == 1 )
    {
        // a number - set it, let DoSetValue round for int value
        DoSetValue(n);
        return;
    }

    // invalid number - set text as is (wxMSW compatible)
    GtkDisableEvents();
    gtk_entry_set_text( GTK_ENTRY(m_widget), wxGTK_CONV( value ) );
    GtkEnableEvents();
}

void wxSpinCtrlGTKBase::DoSetValue( double value )
{
    wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );

    GtkDisableEvents();
    gtk_spin_button_set_value( GTK_SPIN_BUTTON(m_widget), value);
    GtkEnableEvents();
}

void wxSpinCtrlGTKBase::SetSnapToTicks(bool snap_to_ticks)
{
    wxCHECK_RET( (m_widget != NULL), "invalid spin button" );

    gtk_spin_button_set_snap_to_ticks( GTK_SPIN_BUTTON(m_widget), snap_to_ticks);
}

void wxSpinCtrlGTKBase::SetSelection(long from, long to)
{
    // translate from wxWidgets conventions to GTK+ ones: (-1, -1) means the
    // entire range
    if ( from == -1 && to == -1 )
    {
        from = 0;
        to = INT_MAX;
    }

    gtk_editable_select_region( GTK_EDITABLE(m_widget), (gint)from, (gint)to );
}

void wxSpinCtrlGTKBase::DoSetRange(double minVal, double maxVal)
{
    wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );

    GtkDisableEvents();
    gtk_spin_button_set_range( GTK_SPIN_BUTTON(m_widget), minVal, maxVal);
    GtkEnableEvents();
}

void wxSpinCtrlGTKBase::DoSetIncrement(double inc)
{
    wxCHECK_RET( m_widget, "invalid spin button" );

    GtkDisableEvents();

    // Preserve the old page value when changing just the increment.
    double page = 10*inc;
    gtk_spin_button_get_increments( GTK_SPIN_BUTTON(m_widget), NULL, &page);

    gtk_spin_button_set_increments( GTK_SPIN_BUTTON(m_widget), inc, page);
    GtkEnableEvents();
}

void wxSpinCtrlGTKBase::GtkDisableEvents() const
{
    g_signal_handlers_block_by_func( m_widget,
        (gpointer)gtk_value_changed, (void*) this);

    g_signal_handlers_block_by_func(m_widget,
        (gpointer)gtk_changed, (void*) this);
}

void wxSpinCtrlGTKBase::GtkEnableEvents() const
{
    g_signal_handlers_unblock_by_func(m_widget,
        (gpointer)gtk_value_changed, (void*) this);

    g_signal_handlers_unblock_by_func(m_widget,
        (gpointer)gtk_changed, (void*) this);
}

void wxSpinCtrlGTKBase::OnChar( wxKeyEvent &event )
{
    wxCHECK_RET( m_widget != NULL, wxT("invalid spin ctrl") );

    if (event.GetKeyCode() == WXK_RETURN)
    {
        wxWindow *top_frame = wxGetTopLevelParent(m_parent);

        if ( GTK_IS_WINDOW(top_frame->m_widget) )
        {
            GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
            if ( window )
            {
                GtkWidget* widgetDef = gtk_window_get_default_widget(window);

                if ( widgetDef )
                {
                    gtk_widget_activate(widgetDef);
                    return;
                }
            }
        }
    }

    if ((event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxTE_PROCESS_ENTER))
    {
        wxCommandEvent evt( wxEVT_TEXT_ENTER, m_windowId );
        evt.SetEventObject(this);
        GtkSpinButton *gsb = GTK_SPIN_BUTTON(m_widget);
        wxString val = wxGTK_CONV_BACK( gtk_entry_get_text( &gsb->entry ) );
        evt.SetString( val );
        if (HandleWindowEvent(evt)) return;
    }

    event.Skip();
}

GdkWindow *wxSpinCtrlGTKBase::GTKGetWindow(wxArrayGdkWindows& windows) const
{
#ifdef __WXGTK3__
    // no access to internal GdkWindows
    wxUnusedVar(windows);
#else
    GtkSpinButton* spinbutton = GTK_SPIN_BUTTON(m_widget);

    windows.push_back(spinbutton->entry.text_area);
    windows.push_back(spinbutton->panel);
#endif

    return NULL;
}

wxSize wxSpinCtrlGTKBase::DoGetBestSize() const
{
    return DoGetSizeFromTextSize(95); // TODO: 95 is completely arbitrary
}

wxSize wxSpinCtrlGTKBase::DoGetSizeFromTextSize(int xlen, int ylen) const
{
    wxASSERT_MSG( m_widget, wxS("GetSizeFromTextSize called before creation") );

    // Set an as small as possible size for the control, so preferred sizes
    // return "natural" sizes, not taking into account the previous ones (which
    // seems to be GTK+3 behaviour)
    gtk_widget_set_size_request(m_widget, 0, 0);

    // Both Gtk+2 and Gtk+3 use current value/range to measure control's width.
    // So, we can't ask Gtk+ for its width. Instead, we used hardcoded values.

    // Returned height is OK
    wxSize totalS = GTKGetPreferredSize(m_widget);

#if GTK_CHECK_VERSION(3,4,0)
    // two buttons in horizontal
    totalS.x = 46 + 15; // margins included
#else
    // two small buttons in vertical
    totalS.x = GetFont().GetPixelSize().y + 13; // margins included
#endif

    wxSize tsize(xlen + totalS.x, totalS.y);

    // Check if the user requested a non-standard height.
    if ( ylen > 0 )
        tsize.IncBy(0, ylen - GetCharHeight());

    return tsize;
}

// static
wxVisualAttributes
wxSpinCtrlGTKBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
{
    return GetDefaultAttributesFromGTKWidget(gtk_spin_button_new_with_range(0, 100, 1), true);
}

//-----------------------------------------------------------------------------
// wxSpinCtrl
//-----------------------------------------------------------------------------

extern "C"
{

static gboolean
wx_gtk_spin_input(GtkSpinButton* spin, gdouble* val, wxSpinCtrl* win)
{
    // We might use g_ascii_strtoll() here but it's 2.12+ only, so use our own
    // wxString function even if this requires an extra conversion.
    const wxString
        text(wxString::FromUTF8(gtk_entry_get_text(GTK_ENTRY(spin))));

    long lval;
    if ( !text.ToLong(&lval, win->GetBase()) )
        return FALSE;

    *val = lval;

    return TRUE;
}

static gint
wx_gtk_spin_output(GtkSpinButton* spin, wxSpinCtrl* win)
{
    const gint val = gtk_spin_button_get_value_as_int(spin);

    gtk_entry_set_text
    (
        GTK_ENTRY(spin),
        wxPrivate::wxSpinCtrlFormatAsHex(val, win->GetMax()).utf8_str()
    );

    return TRUE;
}

} // extern "C"

bool wxSpinCtrl::SetBase(int base)
{
    // Currently we only support base 10 and 16. We could add support for base
    // 8 quite easily but wxMSW doesn't support it natively so don't bother
    // with doing something wxGTK-specific here.
    if ( base != 10 && base != 16 )
        return false;

    if ( base == m_base )
        return true;

    m_base = base;

    // We need to be able to enter letters for any base greater than 10.
    gtk_spin_button_set_numeric( GTK_SPIN_BUTTON(m_widget), m_base <= 10 );

    if ( m_base != 10 )
    {
        g_signal_connect( m_widget, "input",
                              G_CALLBACK(wx_gtk_spin_input), this);
        g_signal_connect( m_widget, "output",
                              G_CALLBACK(wx_gtk_spin_output), this);
    }
    else
    {
        g_signal_handlers_disconnect_by_func(m_widget,
                                             (gpointer)wx_gtk_spin_input,
                                             this);
        g_signal_handlers_disconnect_by_func(m_widget,
                                             (gpointer)wx_gtk_spin_output,
                                             this);
    }

    return true;
}

//-----------------------------------------------------------------------------
// wxSpinCtrlDouble
//-----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrlDouble, wxSpinCtrlGTKBase)

unsigned wxSpinCtrlDouble::GetDigits() const
{
    wxCHECK_MSG( m_widget, 0, "invalid spin button" );

    return gtk_spin_button_get_digits( GTK_SPIN_BUTTON(m_widget) );
}

void wxSpinCtrlDouble::SetDigits(unsigned digits)
{
    wxCHECK_RET( m_widget, "invalid spin button" );

    gtk_spin_button_set_digits( GTK_SPIN_BUTTON(m_widget), digits);
}

#endif // wxUSE_SPINCTRL
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: src/gtk/spinctrl.cpp
	3	// Purpose: wxSpinCtrl
	4	// Author: Robert
	5	// Modified by:
	6	// RCS-ID: $Id$
	7	// Copyright: (c) Robert Roebling
	8	// Licence: wxWindows licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11	// For compilers that support precompilation, includes "wx.h".
	12	#include "wx/wxprec.h"
	13
	14	#if wxUSE_SPINCTRL
	15
	16	#include "wx/spinctrl.h"
	17
	18	#ifndef WX_PRECOMP
	19	#include "wx/textctrl.h" // for wxEVT_TEXT
	20	#include "wx/utils.h"
	21	#include "wx/wxcrtvararg.h"
	22	#endif
	23
	24	#include <gtk/gtk.h>
	25	#include "wx/gtk/private.h"
	26	#include "wx/gtk/private/gtk2-compat.h"
	27
	28	//-----------------------------------------------------------------------------
	29	// data
	30	//-----------------------------------------------------------------------------
	31
	32	extern bool g_blockEventsOnDrag;
	33
	34	//-----------------------------------------------------------------------------
	35	// "value_changed"
	36	//-----------------------------------------------------------------------------
	37
	38	extern "C" {
	39	static void
	40	gtk_value_changed(GtkSpinButton* spinbutton, wxSpinCtrlGTKBase* win)
	41	{
	42	if (g_blockEventsOnDrag)
	43	return;
	44
	45	if (wxIsKindOf(win, wxSpinCtrl))
	46	{
	47	wxSpinEvent event(wxEVT_SPINCTRL, win->GetId());
	48	event.SetEventObject( win );
	49	event.SetPosition(static_cast<wxSpinCtrl*>(win)->GetValue());
	50	event.SetString(gtk_entry_get_text(GTK_ENTRY(spinbutton)));
	51	win->HandleWindowEvent( event );
	52	}
	53	else // wxIsKindOf(win, wxSpinCtrlDouble)
	54	{
	55	wxSpinDoubleEvent event( wxEVT_SPINCTRLDOUBLE, win->GetId());
	56	event.SetEventObject( win );
	57	event.SetValue(static_cast<wxSpinCtrlDouble*>(win)->GetValue());
	58	event.SetString(gtk_entry_get_text(GTK_ENTRY(spinbutton)));
	59	win->HandleWindowEvent( event );
	60	}
	61	}
	62	}
	63
	64	//-----------------------------------------------------------------------------
	65	// "changed"
	66	//-----------------------------------------------------------------------------
	67
	68	extern "C" {
	69	static void
	70	gtk_changed(GtkSpinButton* spinbutton, wxSpinCtrl* win)
	71	{
	72	wxCommandEvent event( wxEVT_TEXT, win->GetId() );
	73	event.SetEventObject( win );
	74	event.SetString(gtk_entry_get_text(GTK_ENTRY(spinbutton)));
	75	event.SetInt(win->GetValue());
	76	win->HandleWindowEvent( event );
	77	}
	78	}
	79
	80	//-----------------------------------------------------------------------------
	81	// wxSpinCtrlGTKBase
	82	//-----------------------------------------------------------------------------
	83
	84	BEGIN_EVENT_TABLE(wxSpinCtrlGTKBase, wxSpinCtrlBase)
	85	EVT_CHAR(wxSpinCtrlGTKBase::OnChar)
	86	END_EVENT_TABLE()
	87
	88	bool wxSpinCtrlGTKBase::Create(wxWindow *parent, wxWindowID id,
	89	const wxString& value,
	90	const wxPoint& pos, const wxSize& size,
	91	long style,
	92	double min, double max, double initial, double inc,
	93	const wxString& name)
	94	{
	95	if (!PreCreation( parent, pos, size ) \|\|
	96	!CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
	97	{
	98	wxFAIL_MSG( wxT("wxSpinCtrlGTKBase creation failed") );
	99	return false;
	100	}
	101
	102	m_widget = gtk_spin_button_new_with_range(min, max, inc);
	103	g_object_ref(m_widget);
	104
	105	gtk_spin_button_set_value( GTK_SPIN_BUTTON(m_widget), initial);
	106
	107	gfloat align;
	108	if ( HasFlag(wxALIGN_RIGHT) )
	109	align = 1.0;
	110	else if ( HasFlag(wxALIGN_CENTRE) )
	111	align = 0.5;
	112	else
	113	align = 0.0;
	114
	115	gtk_entry_set_alignment(GTK_ENTRY(m_widget), align);
	116
	117	gtk_spin_button_set_wrap( GTK_SPIN_BUTTON(m_widget),
	118	(int)(m_windowStyle & wxSP_WRAP) );
	119
	120	g_signal_connect_after(m_widget, "value_changed", G_CALLBACK(gtk_value_changed), this);
	121	g_signal_connect_after(m_widget, "changed", G_CALLBACK(gtk_changed), this);
	122
	123	m_parent->DoAddChild( this );
	124
	125	PostCreation(size);
	126
	127	if (!value.empty())
	128	{
	129	SetValue(value);
	130	}
	131
	132	return true;
	133	}
	134
	135	double wxSpinCtrlGTKBase::DoGetValue() const
	136	{
	137	wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
	138
	139	// Get value directly from current control text, just as
	140	// gtk_spin_button_update() would do. Calling gtk_spin_button_update() causes
	141	// a redraw, which causes an idle event, so if GetValue() is called from
	142	// a UI update handler, you get a never ending sequence of idle events. It
	143	// also forces the text into valid range, which wxMSW GetValue() does not do.
	144	static unsigned sig_id;
	145	if (sig_id == 0)
	146	sig_id = g_signal_lookup("input", GTK_TYPE_SPIN_BUTTON);
	147	double value;
	148	int handled = 0;
	149	g_signal_emit(m_widget, sig_id, 0, &value, &handled);
	150	if (!handled)
	151	value = g_strtod(gtk_entry_get_text(GTK_ENTRY(m_widget)), NULL);
	152	GtkAdjustment* adj =
	153	gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON(m_widget));
	154	const double lower = gtk_adjustment_get_lower(adj);
	155	const double upper = gtk_adjustment_get_upper(adj);
	156	if (value < lower)
	157	value = lower;
	158	else if (value > upper)
	159	value = upper;
	160
	161	return value;
	162	}
	163
	164	double wxSpinCtrlGTKBase::DoGetMin() const
	165	{
	166	wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
	167
	168	double min = 0;
	169	gtk_spin_button_get_range( GTK_SPIN_BUTTON(m_widget), &min, NULL);
	170	return min;
	171	}
	172
	173	double wxSpinCtrlGTKBase::DoGetMax() const
	174	{
	175	wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
	176
	177	double max = 0;
	178	gtk_spin_button_get_range( GTK_SPIN_BUTTON(m_widget), NULL, &max);
	179	return max;
	180	}
	181
	182	double wxSpinCtrlGTKBase::DoGetIncrement() const
	183	{
	184	wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
	185
	186	double inc = 0;
	187	gtk_spin_button_get_increments( GTK_SPIN_BUTTON(m_widget), &inc, NULL);
	188	return inc;
	189	}
	190
	191	bool wxSpinCtrlGTKBase::GetSnapToTicks() const
	192	{
	193	wxCHECK_MSG(m_widget, false, "invalid spin button");
	194
	195	return gtk_spin_button_get_snap_to_ticks( GTK_SPIN_BUTTON(m_widget) ) != 0;
	196	}
	197
	198	void wxSpinCtrlGTKBase::SetValue( const wxString& value )
	199	{
	200	wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
	201
	202	double n;
	203	if ( wxSscanf(value, "%lg", &n) == 1 )
	204	{
	205	// a number - set it, let DoSetValue round for int value
	206	DoSetValue(n);
	207	return;
	208	}
	209
	210	// invalid number - set text as is (wxMSW compatible)
	211	GtkDisableEvents();
	212	gtk_entry_set_text( GTK_ENTRY(m_widget), wxGTK_CONV( value ) );
	213	GtkEnableEvents();
	214	}
	215
	216	void wxSpinCtrlGTKBase::DoSetValue( double value )
	217	{
	218	wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
	219
	220	GtkDisableEvents();
	221	gtk_spin_button_set_value( GTK_SPIN_BUTTON(m_widget), value);
	222	GtkEnableEvents();
	223	}
	224
	225	void wxSpinCtrlGTKBase::SetSnapToTicks(bool snap_to_ticks)
	226	{
	227	wxCHECK_RET( (m_widget != NULL), "invalid spin button" );
	228
	229	gtk_spin_button_set_snap_to_ticks( GTK_SPIN_BUTTON(m_widget), snap_to_ticks);
	230	}
	231
	232	void wxSpinCtrlGTKBase::SetSelection(long from, long to)
	233	{
	234	// translate from wxWidgets conventions to GTK+ ones: (-1, -1) means the
	235	// entire range
	236	if ( from == -1 && to == -1 )
	237	{
	238	from = 0;
	239	to = INT_MAX;
	240	}
	241
	242	gtk_editable_select_region( GTK_EDITABLE(m_widget), (gint)from, (gint)to );
	243	}
	244
	245	void wxSpinCtrlGTKBase::DoSetRange(double minVal, double maxVal)
	246	{
	247	wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
	248
	249	GtkDisableEvents();
	250	gtk_spin_button_set_range( GTK_SPIN_BUTTON(m_widget), minVal, maxVal);
	251	GtkEnableEvents();
	252	}
	253
	254	void wxSpinCtrlGTKBase::DoSetIncrement(double inc)
	255	{
	256	wxCHECK_RET( m_widget, "invalid spin button" );
	257
	258	GtkDisableEvents();
	259
	260	// Preserve the old page value when changing just the increment.
	261	double page = 10*inc;
	262	gtk_spin_button_get_increments( GTK_SPIN_BUTTON(m_widget), NULL, &page);
	263
	264	gtk_spin_button_set_increments( GTK_SPIN_BUTTON(m_widget), inc, page);
	265	GtkEnableEvents();
	266	}
	267
	268	void wxSpinCtrlGTKBase::GtkDisableEvents() const
	269	{
	270	g_signal_handlers_block_by_func( m_widget,
	271	(gpointer)gtk_value_changed, (void*) this);
	272
	273	g_signal_handlers_block_by_func(m_widget,
	274	(gpointer)gtk_changed, (void*) this);
	275	}
	276
	277	void wxSpinCtrlGTKBase::GtkEnableEvents() const
	278	{
	279	g_signal_handlers_unblock_by_func(m_widget,
	280	(gpointer)gtk_value_changed, (void*) this);
	281
	282	g_signal_handlers_unblock_by_func(m_widget,
	283	(gpointer)gtk_changed, (void*) this);
	284	}
	285
	286	void wxSpinCtrlGTKBase::OnChar( wxKeyEvent &event )
	287	{
	288	wxCHECK_RET( m_widget != NULL, wxT("invalid spin ctrl") );
	289
	290	if (event.GetKeyCode() == WXK_RETURN)
	291	{
	292	wxWindow *top_frame = wxGetTopLevelParent(m_parent);
	293
	294	if ( GTK_IS_WINDOW(top_frame->m_widget) )
	295	{
	296	GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
	297	if ( window )
	298	{
	299	GtkWidget* widgetDef = gtk_window_get_default_widget(window);
	300
	301	if ( widgetDef )
	302	{
	303	gtk_widget_activate(widgetDef);
	304	return;
	305	}
	306	}
	307	}
	308	}
	309
	310	if ((event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxTE_PROCESS_ENTER))
	311	{
	312	wxCommandEvent evt( wxEVT_TEXT_ENTER, m_windowId );
	313	evt.SetEventObject(this);
	314	GtkSpinButton *gsb = GTK_SPIN_BUTTON(m_widget);
	315	wxString val = wxGTK_CONV_BACK( gtk_entry_get_text( &gsb->entry ) );
	316	evt.SetString( val );
	317	if (HandleWindowEvent(evt)) return;
	318	}
	319
	320	event.Skip();
	321	}
	322
	323	GdkWindow *wxSpinCtrlGTKBase::GTKGetWindow(wxArrayGdkWindows& windows) const
	324	{
	325	#ifdef __WXGTK3__
	326	// no access to internal GdkWindows
	327	wxUnusedVar(windows);
	328	#else
	329	GtkSpinButton* spinbutton = GTK_SPIN_BUTTON(m_widget);
	330
	331	windows.push_back(spinbutton->entry.text_area);
	332	windows.push_back(spinbutton->panel);
	333	#endif
	334
	335	return NULL;
	336	}
	337
	338	wxSize wxSpinCtrlGTKBase::DoGetBestSize() const
	339	{
	340	return DoGetSizeFromTextSize(95); // TODO: 95 is completely arbitrary
	341	}
	342
	343	wxSize wxSpinCtrlGTKBase::DoGetSizeFromTextSize(int xlen, int ylen) const
	344	{
	345	wxASSERT_MSG( m_widget, wxS("GetSizeFromTextSize called before creation") );
	346
	347	// Set an as small as possible size for the control, so preferred sizes
	348	// return "natural" sizes, not taking into account the previous ones (which
	349	// seems to be GTK+3 behaviour)
	350	gtk_widget_set_size_request(m_widget, 0, 0);
	351
	352	// Both Gtk+2 and Gtk+3 use current value/range to measure control's width.
	353	// So, we can't ask Gtk+ for its width. Instead, we used hardcoded values.
	354
	355	// Returned height is OK
	356	wxSize totalS = GTKGetPreferredSize(m_widget);
	357
	358	#if GTK_CHECK_VERSION(3,4,0)
	359	// two buttons in horizontal
	360	totalS.x = 46 + 15; // margins included
	361	#else
	362	// two small buttons in vertical
	363	totalS.x = GetFont().GetPixelSize().y + 13; // margins included
	364	#endif
	365
	366	wxSize tsize(xlen + totalS.x, totalS.y);
	367
	368	// Check if the user requested a non-standard height.
	369	if ( ylen > 0 )
	370	tsize.IncBy(0, ylen - GetCharHeight());
	371
	372	return tsize;
	373	}
	374
	375	// static
	376	wxVisualAttributes
	377	wxSpinCtrlGTKBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
	378	{
	379	return GetDefaultAttributesFromGTKWidget(gtk_spin_button_new_with_range(0, 100, 1), true);
	380	}
	381
	382	//-----------------------------------------------------------------------------
	383	// wxSpinCtrl
	384	//-----------------------------------------------------------------------------
	385
	386	extern "C"
	387	{
	388
	389	static gboolean
	390	wx_gtk_spin_input(GtkSpinButton* spin, gdouble* val, wxSpinCtrl* win)
	391	{
	392	// We might use g_ascii_strtoll() here but it's 2.12+ only, so use our own
	393	// wxString function even if this requires an extra conversion.
	394	const wxString
	395	text(wxString::FromUTF8(gtk_entry_get_text(GTK_ENTRY(spin))));
	396
	397	long lval;
	398	if ( !text.ToLong(&lval, win->GetBase()) )
	399	return FALSE;
	400
	401	*val = lval;
	402
	403	return TRUE;
	404	}
	405
	406	static gint
	407	wx_gtk_spin_output(GtkSpinButton* spin, wxSpinCtrl* win)
	408	{
	409	const gint val = gtk_spin_button_get_value_as_int(spin);
	410
	411	gtk_entry_set_text
	412	(
	413	GTK_ENTRY(spin),
	414	wxPrivate::wxSpinCtrlFormatAsHex(val, win->GetMax()).utf8_str()
	415	);
	416
	417	return TRUE;
	418	}
	419
	420	} // extern "C"
	421
	422	bool wxSpinCtrl::SetBase(int base)
	423	{
	424	// Currently we only support base 10 and 16. We could add support for base
	425	// 8 quite easily but wxMSW doesn't support it natively so don't bother
	426	// with doing something wxGTK-specific here.
	427	if ( base != 10 && base != 16 )
	428	return false;
	429
	430	if ( base == m_base )
	431	return true;
	432
	433	m_base = base;
	434
	435	// We need to be able to enter letters for any base greater than 10.
	436	gtk_spin_button_set_numeric( GTK_SPIN_BUTTON(m_widget), m_base <= 10 );
	437
	438	if ( m_base != 10 )
	439	{
	440	g_signal_connect( m_widget, "input",
	441	G_CALLBACK(wx_gtk_spin_input), this);
	442	g_signal_connect( m_widget, "output",
	443	G_CALLBACK(wx_gtk_spin_output), this);
	444	}
	445	else
	446	{
	447	g_signal_handlers_disconnect_by_func(m_widget,
	448	(gpointer)wx_gtk_spin_input,
	449	this);
	450	g_signal_handlers_disconnect_by_func(m_widget,
	451	(gpointer)wx_gtk_spin_output,
	452	this);
	453	}
	454
	455	return true;
	456	}
	457
	458	//-----------------------------------------------------------------------------
	459	// wxSpinCtrlDouble
	460	//-----------------------------------------------------------------------------
	461
	462	IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrlDouble, wxSpinCtrlGTKBase)
	463
	464	unsigned wxSpinCtrlDouble::GetDigits() const
	465	{
	466	wxCHECK_MSG( m_widget, 0, "invalid spin button" );
	467
	468	return gtk_spin_button_get_digits( GTK_SPIN_BUTTON(m_widget) );
	469	}
	470
	471	void wxSpinCtrlDouble::SetDigits(unsigned digits)
	472	{
	473	wxCHECK_RET( m_widget, "invalid spin button" );
	474
	475	gtk_spin_button_set_digits( GTK_SPIN_BUTTON(m_widget), digits);
	476	}
	477
	478	#endif // wxUSE_SPINCTRL