wxWidgets/include/wx/generic/spinctlg.h
Vadim Zeitlin a44bb13a0c Make DetermineDigits() reusable in other ports
Move this function, and the associated constant, to common code.

This required moving wxSpinCtrlDouble::Create() implementation to the
source file, but there are no real changes.
2021-04-25 20:14:46 +01:00

436 lines
14 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: wx/generic/spinctlg.h
// Purpose: generic wxSpinCtrl class
// Author: Vadim Zeitlin
// Modified by:
// Created: 28.10.99
// Copyright: (c) Vadim Zeitlin
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_GENERIC_SPINCTRL_H_
#define _WX_GENERIC_SPINCTRL_H_
// ----------------------------------------------------------------------------
// wxSpinCtrl is a combination of wxSpinButton and wxTextCtrl, so if
// wxSpinButton is available, this is what we do - but if it isn't, we still
// define wxSpinCtrl class which then has the same appearance as wxTextCtrl but
// the different interface. This allows to write programs using wxSpinCtrl
// without tons of #ifdefs.
// ----------------------------------------------------------------------------
#if wxUSE_SPINBTN
#include "wx/compositewin.h"
class WXDLLIMPEXP_FWD_CORE wxSpinButton;
class WXDLLIMPEXP_FWD_CORE wxTextCtrl;
class wxSpinCtrlTextGeneric; // wxTextCtrl used for the wxSpinCtrlGenericBase
// The !wxUSE_SPINBTN version's GetValue() function conflicts with the
// wxTextCtrl's GetValue() and so you have to input a dummy int value.
#define wxSPINCTRL_GETVALUE_FIX
// ----------------------------------------------------------------------------
// wxSpinCtrlGeneric is a combination of wxTextCtrl and wxSpinButton
//
// This class manages a double valued generic spinctrl through the DoGet/SetXXX
// functions that are made public as Get/SetXXX functions for int or double
// for the wxSpinCtrl and wxSpinCtrlDouble classes respectively to avoid
// function ambiguity.
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxSpinCtrlGenericBase
: public wxNavigationEnabled<wxCompositeWindow<wxSpinCtrlBase> >
{
public:
wxSpinCtrlGenericBase() { Init(); }
bool Create(wxWindow *parent,
wxWindowID id = wxID_ANY,
const wxString& value = wxEmptyString,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxSP_ARROW_KEYS,
double min = 0, double max = 100, double initial = 0,
double inc = 1,
const wxString& name = wxT("wxSpinCtrl"));
virtual ~wxSpinCtrlGenericBase();
// accessors
virtual wxString GetTextValue() const wxOVERRIDE;
// T GetValue() const
// T GetMin() const
// T GetMax() const
// T GetIncrement() const
virtual bool GetSnapToTicks() const wxOVERRIDE { return m_snap_to_ticks; }
// unsigned GetDigits() const - wxSpinCtrlDouble only
// operations
virtual void SetValue(const wxString& text) wxOVERRIDE;
// void SetValue(T val)
// void SetRange(T minVal, T maxVal)
// void SetIncrement(T inc)
virtual void SetSnapToTicks(bool snap_to_ticks) wxOVERRIDE;
// void SetDigits(unsigned digits) - wxSpinCtrlDouble only
// Select text in the textctrl
void SetSelection(long from, long to) wxOVERRIDE;
// implementation from now on
// forward these functions to all subcontrols
virtual bool Enable(bool enable = true) wxOVERRIDE;
virtual bool Show(bool show = true) wxOVERRIDE;
virtual bool SetBackgroundColour(const wxColour& colour) wxOVERRIDE;
// get the subcontrols
wxTextCtrl *GetText() const { return m_textCtrl; }
wxSpinButton *GetSpinButton() const { return m_spinButton; }
// forwarded events from children windows
void OnSpinButton(wxSpinEvent& event);
void OnTextLostFocus(wxFocusEvent& event);
void OnTextChar(wxKeyEvent& event);
// this window itself is used only as a container for its sub windows so it
// shouldn't accept the focus at all and any attempts to explicitly set
// focus to it should give focus to its text constol part
virtual bool AcceptsFocus() const wxOVERRIDE { return false; }
virtual void SetFocus() wxOVERRIDE;
friend class wxSpinCtrlTextGeneric;
protected:
// override the base class virtuals involved into geometry calculations
virtual wxSize DoGetBestSize() const wxOVERRIDE;
virtual wxSize DoGetSizeFromTextSize(int xlen, int ylen = -1) const wxOVERRIDE;
virtual void DoMoveWindow(int x, int y, int width, int height) wxOVERRIDE;
#ifdef __WXMSW__
// and, for MSW, enabling this window itself
virtual void DoEnable(bool enable) wxOVERRIDE;
#endif // __WXMSW__
enum SendEvent
{
SendEvent_None,
SendEvent_Text
};
// generic double valued functions
double DoGetValue() const { return m_value; }
bool DoSetValue(double val, SendEvent sendEvent);
void DoSetRange(double min_val, double max_val);
void DoSetIncrement(double inc);
// update our value to reflect the text control contents (if it has been
// modified by user, do nothing otherwise)
//
// can also change the text control if its value is invalid
//
// return true if our value has changed
bool SyncSpinToText(SendEvent sendEvent);
// Send the correct event type
virtual void DoSendEvent() = 0;
// Convert the text to/from the corresponding value.
virtual bool DoTextToValue(const wxString& text, double *val) = 0;
virtual wxString DoValueToText(double val) = 0;
// check if the value is in range
bool InRange(double n) const { return (n >= m_min) && (n <= m_max); }
// ensure that the value is in range wrapping it round if necessary
double AdjustToFitInRange(double value) const;
// Assign validator with current parameters
virtual void ResetTextValidator() = 0;
double m_value;
double m_min;
double m_max;
double m_increment;
bool m_snap_to_ticks;
int m_spin_value;
// the subcontrols
wxTextCtrl *m_textCtrl;
wxSpinButton *m_spinButton;
private:
// common part of all ctors
void Init();
// Implement pure virtual function inherited from wxCompositeWindow.
virtual wxWindowList GetCompositeWindowParts() const wxOVERRIDE;
wxDECLARE_EVENT_TABLE();
};
#else // !wxUSE_SPINBTN
#define wxSPINCTRL_GETVALUE_FIX int = 1
// ----------------------------------------------------------------------------
// wxSpinCtrl is just a text control
// ----------------------------------------------------------------------------
#include "wx/textctrl.h"
class WXDLLIMPEXP_CORE wxSpinCtrlGenericBase : public wxTextCtrl
{
public:
wxSpinCtrlGenericBase() : m_value(0), m_min(0), m_max(100),
m_increment(1), m_snap_to_ticks(false),
m_format(wxT("%g")) { }
bool Create(wxWindow *parent,
wxWindowID id = wxID_ANY,
const wxString& value = wxEmptyString,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxSP_ARROW_KEYS,
double min = 0, double max = 100, double initial = 0,
double inc = 1,
const wxString& name = wxT("wxSpinCtrl"))
{
m_min = min;
m_max = max;
m_value = initial;
m_increment = inc;
bool ok = wxTextCtrl::Create(parent, id, value, pos, size, style,
wxDefaultValidator, name);
DoSetValue(initial, SendEvent_None);
return ok;
}
// accessors
// T GetValue() const
// T GetMin() const
// T GetMax() const
// T GetIncrement() const
virtual bool GetSnapToTicks() const { return m_snap_to_ticks; }
// unsigned GetDigits() const - wxSpinCtrlDouble only
// operations
virtual void SetValue(const wxString& text) { wxTextCtrl::SetValue(text); }
// void SetValue(T val)
// void SetRange(T minVal, T maxVal)
// void SetIncrement(T inc)
virtual void SetSnapToTicks(bool snap_to_ticks)
{ m_snap_to_ticks = snap_to_ticks; }
// void SetDigits(unsigned digits) - wxSpinCtrlDouble only
// Select text in the textctrl
//void SetSelection(long from, long to);
protected:
// generic double valued
double DoGetValue() const
{
double n;
if ( (wxSscanf(wxTextCtrl::GetValue(), wxT("%lf"), &n) != 1) )
n = INT_MIN;
return n;
}
bool DoSetValue(double val, SendEvent sendEvent)
{
wxString str(wxString::Format(m_format, val));
switch ( sendEvent )
{
case SendEvent_None:
wxTextCtrl::ChangeValue(str);
break;
case SendEvent_Text:
wxTextCtrl::SetValue(str);
break;
}
return true;
}
void DoSetRange(double min_val, double max_val)
{
m_min = min_val;
m_max = max_val;
}
void DoSetIncrement(double inc) { m_increment = inc; } // Note: unused
double m_value;
double m_min;
double m_max;
double m_increment;
bool m_snap_to_ticks;
wxString m_format;
};
#endif // wxUSE_SPINBTN/!wxUSE_SPINBTN
#if !defined(wxHAS_NATIVE_SPINCTRL)
//-----------------------------------------------------------------------------
// wxSpinCtrl
//-----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxSpinCtrl : public wxSpinCtrlGenericBase
{
public:
wxSpinCtrl() { Init(); }
wxSpinCtrl(wxWindow *parent,
wxWindowID id = wxID_ANY,
const wxString& value = wxEmptyString,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxSP_ARROW_KEYS,
int min = 0, int max = 100, int initial = 0,
const wxString& name = wxT("wxSpinCtrl"))
{
Init();
Create(parent, id, value, pos, size, style, min, max, initial, name);
}
bool Create(wxWindow *parent,
wxWindowID id = wxID_ANY,
const wxString& value = wxEmptyString,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxSP_ARROW_KEYS,
int min = 0, int max = 100, int initial = 0,
const wxString& name = wxT("wxSpinCtrl"))
{
return wxSpinCtrlGenericBase::Create(parent, id, value, pos, size,
style, min, max, initial, 1, name);
}
// accessors
int GetValue(wxSPINCTRL_GETVALUE_FIX) const { return int(DoGetValue()); }
int GetMin() const { return int(m_min); }
int GetMax() const { return int(m_max); }
int GetIncrement() const { return int(m_increment); }
// operations
virtual void SetValue(const wxString& value) wxOVERRIDE
{ wxSpinCtrlGenericBase::SetValue(value); }
void SetValue( int value ) { DoSetValue(value, SendEvent_None); }
void SetRange( int minVal, int maxVal ) { DoSetRange(minVal, maxVal); }
void SetIncrement(int inc) { DoSetIncrement(inc); }
virtual int GetBase() const wxOVERRIDE { return m_base; }
virtual bool SetBase(int base) wxOVERRIDE;
protected:
virtual void DoSendEvent() wxOVERRIDE;
virtual bool DoTextToValue(const wxString& text, double *val) wxOVERRIDE;
virtual wxString DoValueToText(double val) wxOVERRIDE;
virtual void ResetTextValidator() wxOVERRIDE;
private:
// Common part of all ctors.
void Init()
{
m_base = 10;
}
int m_base;
wxDECLARE_DYNAMIC_CLASS(wxSpinCtrl);
};
#endif // wxHAS_NATIVE_SPINCTRL
//-----------------------------------------------------------------------------
// wxSpinCtrlDouble
//-----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxSpinCtrlDouble : public wxSpinCtrlGenericBase
{
public:
wxSpinCtrlDouble() { Init(); }
wxSpinCtrlDouble(wxWindow *parent,
wxWindowID id = wxID_ANY,
const wxString& value = wxEmptyString,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxSP_ARROW_KEYS,
double min = 0, double max = 100, double initial = 0,
double inc = 1,
const wxString& name = wxT("wxSpinCtrlDouble"))
{
Init();
Create(parent, id, value, pos, size, style,
min, max, initial, inc, name);
}
bool Create(wxWindow *parent,
wxWindowID id = wxID_ANY,
const wxString& value = wxEmptyString,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxSP_ARROW_KEYS,
double min = 0, double max = 100, double initial = 0,
double inc = 1,
const wxString& name = wxT("wxSpinCtrlDouble"));
// accessors
double GetValue(wxSPINCTRL_GETVALUE_FIX) const { return DoGetValue(); }
double GetMin() const { return m_min; }
double GetMax() const { return m_max; }
double GetIncrement() const { return m_increment; }
unsigned GetDigits() const { return m_digits; }
// operations
void SetValue(const wxString& value) wxOVERRIDE
{ wxSpinCtrlGenericBase::SetValue(value); }
void SetValue(double value) { DoSetValue(value, SendEvent_None); }
void SetRange(double minVal, double maxVal) { DoSetRange(minVal, maxVal); }
void SetIncrement(double inc);
void SetDigits(unsigned digits);
// We don't implement bases support for floating point numbers, this is not
// very useful in practice.
virtual int GetBase() const wxOVERRIDE { return 10; }
virtual bool SetBase(int WXUNUSED(base)) wxOVERRIDE { return false; }
protected:
virtual void DoSendEvent() wxOVERRIDE;
virtual bool DoTextToValue(const wxString& text, double *val) wxOVERRIDE;
virtual wxString DoValueToText(double val) wxOVERRIDE;
virtual void ResetTextValidator() wxOVERRIDE;
unsigned m_digits;
private:
// Common part of all ctors.
void Init()
{
DoSetDigits(0);
}
// Just set the number of digits and the format unconditionally.
void DoSetDigits(unsigned digits);
// Call DoSetDigits() and update the appearance.
void DoSetDigitsAndUpdate(unsigned digits);
wxString m_format;
wxDECLARE_DYNAMIC_CLASS(wxSpinCtrlDouble);
};
#endif // _WX_GENERIC_SPINCTRL_H_