dcfb179bc7
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12565 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
361 lines
12 KiB
C++
361 lines
12 KiB
C++
///////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/univ/combobox.h
|
|
// Purpose: the universal combobox
|
|
// Author: Vadim Zeitlin
|
|
// Modified by:
|
|
// Created: 30.08.00
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
|
|
// Licence: wxWindows licence
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
/*
|
|
A few words about all the classes defined in this file are probably in
|
|
order: why do we need extra wxComboControl and wxComboPopup classes?
|
|
|
|
This is because a traditional combobox is a combination of a text control
|
|
(with a button allowing to open the pop down list) with a listbox and
|
|
wxComboBox class is exactly such control, however we want to also have other
|
|
combinations - in fact, we want to allow anything at all to be used as pop
|
|
down list, not just a wxListBox.
|
|
|
|
So we define a base wxComboControl which can use any control as pop down
|
|
list and wxComboBox deriving from it which implements the standard wxWindows
|
|
combobox API. wxComboControl needs to be told somehow which control to use
|
|
and this is done by SetPopupControl(). However, we need something more than
|
|
just a wxControl in this method as, for example, we need to call
|
|
SetSelection("initial text value") and wxControl doesn't have such method.
|
|
So we also need a wxComboPopup which is just a very simple interface which
|
|
must be implemented by a control to be usable as a popup.
|
|
|
|
We couldn't derive wxComboPopup from wxControl as this would make it
|
|
impossible to have a class deriving from both wxListBx and from it, so
|
|
instead it is just a mix-in.
|
|
*/
|
|
|
|
#ifndef _WX_UNIV_COMBOBOX_H_
|
|
#define _WX_UNIV_COMBOBOX_H_
|
|
|
|
#ifdef __GNUG__
|
|
#pragma interface "univcombobox.h"
|
|
#endif
|
|
|
|
class WXDLLEXPORT wxComboControl;
|
|
class WXDLLEXPORT wxListBox;
|
|
class WXDLLEXPORT wxPopupComboWindow;
|
|
class WXDLLEXPORT wxTextCtrl;
|
|
class WXDLLEXPORT wxButton;
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// the actions supported by this control
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// all actions of single line text controls are supported
|
|
|
|
// popup/dismiss the choice window
|
|
#define wxACTION_COMBOBOX_POPUP _T("popup")
|
|
#define wxACTION_COMBOBOX_DISMISS _T("dismiss")
|
|
|
|
// choose the next/prev/specified (by numArg) item
|
|
#define wxACTION_COMBOBOX_SELECT_NEXT _T("next")
|
|
#define wxACTION_COMBOBOX_SELECT_PREV _T("prev")
|
|
#define wxACTION_COMBOBOX_SELECT _T("select")
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxComboPopup is the interface which must be implemented by a control to be
|
|
// used as a popup by wxComboControl
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT wxComboPopup
|
|
{
|
|
public:
|
|
wxComboPopup(wxComboControl *combo) { m_combo = combo; }
|
|
|
|
// we must have an associated control which is subclassed by the combobox
|
|
virtual wxControl *GetControl() = 0;
|
|
|
|
// called before showing the control to set the initial selection - notice
|
|
// that the text passed to this method might not correspond to any valid
|
|
// item (if the user edited it directly), in which case the method should
|
|
// just return FALSE but not emit any errors
|
|
virtual bool SetSelection(const wxString& value) = 0;
|
|
|
|
// called immediately after the control is shown
|
|
virtual void OnShow() = 0;
|
|
|
|
protected:
|
|
wxComboControl *m_combo;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxComboControl: a combination of a (single line) text control with a button
|
|
// opening a popup window which contains the control from which the user can
|
|
// choose the value directly.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT wxComboControl : public wxControl
|
|
{
|
|
public:
|
|
// construction
|
|
wxComboControl()
|
|
{
|
|
Init();
|
|
}
|
|
|
|
wxComboControl(wxWindow *parent,
|
|
wxWindowID id,
|
|
const wxString& value = wxEmptyString,
|
|
const wxPoint& pos = wxDefaultPosition,
|
|
const wxSize& size = wxDefaultSize,
|
|
long style = 0,
|
|
const wxValidator& validator = wxDefaultValidator,
|
|
const wxString& name = wxComboBoxNameStr)
|
|
{
|
|
Init();
|
|
|
|
(void)Create(parent, id, value, pos, size, style, validator, name);
|
|
}
|
|
|
|
bool Create(wxWindow *parent,
|
|
wxWindowID id,
|
|
const wxString& value = wxEmptyString,
|
|
const wxPoint& pos = wxDefaultPosition,
|
|
const wxSize& size = wxDefaultSize,
|
|
long style = 0,
|
|
const wxValidator& validator = wxDefaultValidator,
|
|
const wxString& name = wxComboBoxNameStr);
|
|
|
|
virtual ~wxComboControl();
|
|
|
|
// a combo control needs a control for popup window it displays
|
|
void SetPopupControl(wxComboPopup *popup);
|
|
wxComboPopup *GetPopupControl() const { return m_popup; }
|
|
|
|
// show/hide popup window
|
|
void ShowPopup();
|
|
void HidePopup();
|
|
|
|
// return TRUE if the popup is currently shown
|
|
bool IsPopupShown() const { return m_isPopupShown; }
|
|
|
|
// get the popup window containing the popup control
|
|
wxPopupComboWindow *GetPopupWindow() const { return m_winPopup; }
|
|
|
|
// get the text control which is part of the combobox
|
|
wxTextCtrl *GetText() const { return m_text; }
|
|
|
|
// implementation only from now on
|
|
// -------------------------------
|
|
|
|
// notifications from wxComboPopup (shouldn't be called by anybody else)
|
|
|
|
// called when the user selects something in the popup: this normally hides
|
|
// the popup and sets the text to the new value
|
|
virtual void OnSelect(const wxString& value);
|
|
|
|
// called when the user dismisses the popup
|
|
virtual void OnDismiss();
|
|
|
|
// forward these functions to all subcontrols
|
|
virtual bool Enable(bool enable = TRUE);
|
|
virtual bool Show(bool show = TRUE);
|
|
|
|
protected:
|
|
// override the base class virtuals involved into geometry calculations
|
|
virtual wxSize DoGetBestClientSize() const;
|
|
virtual void DoMoveWindow(int x, int y, int width, int height);
|
|
virtual void DoSetSize(int x, int y,
|
|
int width, int height,
|
|
int sizeFlags = wxSIZE_AUTO);
|
|
|
|
// we have our own input handler and our own actions
|
|
virtual bool PerformAction(const wxControlAction& action,
|
|
long numArg = 0l,
|
|
const wxString& strArg = wxEmptyString);
|
|
|
|
// event handlers
|
|
void OnKey(wxKeyEvent& event);
|
|
|
|
// common part of all ctors
|
|
void Init();
|
|
|
|
private:
|
|
// the text control and button we show all the time
|
|
wxTextCtrl *m_text;
|
|
wxButton *m_btn;
|
|
|
|
// the popup control
|
|
wxComboPopup *m_popup;
|
|
|
|
// and the popup window containing it
|
|
wxPopupComboWindow *m_winPopup;
|
|
|
|
// the height of the combobox popup as calculated in Create()
|
|
wxCoord m_heightPopup;
|
|
|
|
// is the popup window currenty shown?
|
|
bool m_isPopupShown;
|
|
|
|
DECLARE_EVENT_TABLE()
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxComboBox: a combination of text control and a listbox
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT wxComboBox : public wxComboControl, public wxComboBoxBase
|
|
{
|
|
public:
|
|
// ctors and such
|
|
wxComboBox() { Init(); }
|
|
|
|
wxComboBox(wxWindow *parent,
|
|
wxWindowID id,
|
|
const wxString& value = wxEmptyString,
|
|
const wxPoint& pos = wxDefaultPosition,
|
|
const wxSize& size = wxDefaultSize,
|
|
int n = 0,
|
|
const wxString *choices = (const wxString *) NULL,
|
|
long style = 0,
|
|
const wxValidator& validator = wxDefaultValidator,
|
|
const wxString& name = wxComboBoxNameStr)
|
|
{
|
|
Init();
|
|
|
|
(void)Create(parent, id, value, pos, size, n, choices,
|
|
style, validator, name);
|
|
}
|
|
|
|
bool Create(wxWindow *parent,
|
|
wxWindowID id,
|
|
const wxString& value = wxEmptyString,
|
|
const wxPoint& pos = wxDefaultPosition,
|
|
const wxSize& size = wxDefaultSize,
|
|
int n = 0,
|
|
const wxString choices[] = (const wxString *) NULL,
|
|
long style = 0,
|
|
const wxValidator& validator = wxDefaultValidator,
|
|
const wxString& name = wxComboBoxNameStr);
|
|
|
|
|
|
virtual ~wxComboBox();
|
|
|
|
// the wxUniversal-specific methods
|
|
// --------------------------------
|
|
|
|
// implement the combobox interface
|
|
|
|
// wxTextCtrl methods
|
|
virtual wxString GetValue() const;
|
|
virtual void SetValue(const wxString& value);
|
|
virtual void Copy();
|
|
virtual void Cut();
|
|
virtual void Paste();
|
|
virtual void SetInsertionPoint(long pos);
|
|
virtual void SetInsertionPointEnd();
|
|
virtual long GetInsertionPoint() const;
|
|
virtual long GetLastPosition() const;
|
|
virtual void Replace(long from, long to, const wxString& value);
|
|
virtual void Remove(long from, long to);
|
|
virtual void SetSelection(long from, long to);
|
|
virtual void SetEditable(bool editable);
|
|
|
|
// wxControlWithItems methods
|
|
virtual void Clear();
|
|
virtual void Delete(int n);
|
|
virtual int GetCount() const;
|
|
virtual wxString GetString(int n) const;
|
|
virtual void SetString(int n, const wxString& s);
|
|
virtual int FindString(const wxString& s) const;
|
|
virtual void Select(int n);
|
|
virtual int GetSelection() const;
|
|
void SetSelection(int n) { Select(n); }
|
|
|
|
void SetStringSelection(const wxString& s) { }
|
|
|
|
// we have to redefine these functions here to avoid ambiguities in classes
|
|
// deriving from us which would arise otherwise because we inherit these
|
|
// methods (with different signatures) from both wxItemContainer via
|
|
// wxComboBoxBase (with "int n" parameter) and from wxEvtHandler via
|
|
// wxControl and wxComboControl (without)
|
|
//
|
|
// hopefully, a smart compiler can optimize away these simple inline
|
|
// wrappers so we don't suffer much from this
|
|
|
|
void SetClientData(void *data)
|
|
{
|
|
wxControl::SetClientData(data);
|
|
}
|
|
|
|
void *GetClientData() const
|
|
{
|
|
return wxControl::GetClientData();
|
|
}
|
|
|
|
void SetClientObject(wxClientData *data)
|
|
{
|
|
wxControl::SetClientObject(data);
|
|
}
|
|
|
|
wxClientData *GetClientObject() const
|
|
{
|
|
return wxControl::GetClientObject();
|
|
}
|
|
|
|
void SetClientData(int n, void* clientData)
|
|
{
|
|
wxItemContainer::SetClientData(n, clientData);
|
|
}
|
|
|
|
void* GetClientData(int n) const
|
|
{
|
|
return wxItemContainer::GetClientData(n);
|
|
}
|
|
|
|
void SetClientObject(int n, wxClientData* clientData)
|
|
{
|
|
wxItemContainer::SetClientObject(n, clientData);
|
|
}
|
|
|
|
wxClientData* GetClientObject(int n) const
|
|
{
|
|
return wxItemContainer::GetClientObject(n);
|
|
}
|
|
|
|
protected:
|
|
virtual int DoAppend(const wxString& item);
|
|
virtual void DoSetItemClientData(int n, void* clientData);
|
|
virtual void* DoGetItemClientData(int n) const;
|
|
virtual void DoSetItemClientObject(int n, wxClientData* clientData);
|
|
virtual wxClientData* DoGetItemClientObject(int n) const;
|
|
|
|
// common part of all ctors
|
|
void Init();
|
|
|
|
// get the associated listbox
|
|
wxListBox *GetLBox() const { return m_lbox; }
|
|
|
|
private:
|
|
// the popup listbox
|
|
wxListBox *m_lbox;
|
|
|
|
//DECLARE_EVENT_TABLE()
|
|
DECLARE_DYNAMIC_CLASS(wxComboBox)
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxStdComboBoxInputHandler: allows the user to open/close the combo from kbd
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT wxStdComboBoxInputHandler : public wxStdInputHandler
|
|
{
|
|
public:
|
|
wxStdComboBoxInputHandler(wxInputHandler *inphand);
|
|
|
|
virtual bool HandleKey(wxInputConsumer *consumer,
|
|
const wxKeyEvent& event,
|
|
bool pressed);
|
|
};
|
|
|
|
#endif // _WX_UNIV_COMBOBOX_H_
|