327 lines
11 KiB
C
327 lines
11 KiB
C
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/////////////////////////////////////////////////////////////////////////////
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// Name: wx/msgdlg.h
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// Purpose: common header and base class for wxMessageDialog
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// Author: Julian Smart
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// Modified by:
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// Created:
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_MSGDLG_H_BASE_
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#define _WX_MSGDLG_H_BASE_
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#include "wx/defs.h"
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#if wxUSE_MSGDLG
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#include "wx/dialog.h"
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#include "wx/stockitem.h"
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extern WXDLLIMPEXP_DATA_CORE(const char) wxMessageBoxCaptionStr[];
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// ----------------------------------------------------------------------------
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// wxMessageDialogBase: base class defining wxMessageDialog interface
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxMessageDialogBase : public wxDialog
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{
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public:
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// helper class for SetXXXLabels() methods: it makes it possible to pass
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// either a stock id (wxID_CLOSE) or a string ("&Close") to them
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class ButtonLabel
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{
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public:
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// ctors are not explicit, objects of this class can be implicitly
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// constructed from either stock ids or strings
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ButtonLabel(int stockId)
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: m_stockId(stockId)
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{
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wxASSERT_MSG( wxIsStockID(stockId), "invalid stock id" );
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}
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ButtonLabel(const wxString& label)
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: m_label(label), m_stockId(wxID_NONE)
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{
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}
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ButtonLabel(const char *label)
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: m_label(label), m_stockId(wxID_NONE)
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{
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}
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ButtonLabel(const wchar_t *label)
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: m_label(label), m_stockId(wxID_NONE)
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{
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}
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ButtonLabel(const wxCStrData& label)
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: m_label(label), m_stockId(wxID_NONE)
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{
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}
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// default copy ctor and dtor are ok
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// get the string label, whether it was originally specified directly
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// or as a stock id -- this is only useful for platforms without native
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// stock items id support
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wxString GetAsString() const
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{
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return m_stockId == wxID_NONE
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? m_label
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: wxGetStockLabel(m_stockId, wxSTOCK_FOR_BUTTON);
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}
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// return the stock id or wxID_NONE if this is not a stock label
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int GetStockId() const { return m_stockId; }
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private:
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// the label if explicitly given or empty if this is a stock item
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const wxString m_label;
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// the stock item id or wxID_NONE if m_label should be used
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const int m_stockId;
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};
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// ctors
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wxMessageDialogBase() { m_dialogStyle = 0; }
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wxMessageDialogBase(wxWindow *parent,
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const wxString& message,
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const wxString& caption,
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long style)
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: m_message(message),
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m_caption(caption)
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{
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m_parent = parent;
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SetMessageDialogStyle(style);
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}
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// virtual dtor for the base class
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virtual ~wxMessageDialogBase() { }
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wxString GetCaption() const { return m_caption; }
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// Title and caption are the same thing, GetCaption() mostly exists just
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// for compatibility.
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virtual void SetTitle(const wxString& title) { m_caption = title; }
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virtual wxString GetTitle() const { return m_caption; }
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virtual void SetMessage(const wxString& message)
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{
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m_message = message;
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}
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wxString GetMessage() const { return m_message; }
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void SetExtendedMessage(const wxString& extendedMessage)
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{
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m_extendedMessage = extendedMessage;
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}
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wxString GetExtendedMessage() const { return m_extendedMessage; }
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// change the dialog style flag
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void SetMessageDialogStyle(long style)
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{
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wxASSERT_MSG( ((style & wxYES_NO) == wxYES_NO) || !(style & wxYES_NO),
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"wxYES and wxNO may only be used together" );
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wxASSERT_MSG( !(style & wxYES) || !(style & wxOK),
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"wxOK and wxYES/wxNO can't be used together" );
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// It is common to specify just the icon, without wxOK, in the existing
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// code, especially one written by Windows programmers as MB_OK is 0
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// and so they're used to omitting wxOK. Don't complain about it but
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// just add wxOK implicitly for compatibility.
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if ( !(style & wxYES) && !(style & wxOK) )
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style |= wxOK;
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wxASSERT_MSG( (style & wxID_OK) != wxID_OK,
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"wxMessageBox: Did you mean wxOK (and not wxID_OK)?" );
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wxASSERT_MSG( !(style & wxNO_DEFAULT) || (style & wxNO),
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"wxNO_DEFAULT is invalid without wxNO" );
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wxASSERT_MSG( !(style & wxCANCEL_DEFAULT) || (style & wxCANCEL),
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"wxCANCEL_DEFAULT is invalid without wxCANCEL" );
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wxASSERT_MSG( !(style & wxCANCEL_DEFAULT) || !(style & wxNO_DEFAULT),
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"only one default button can be specified" );
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m_dialogStyle = style;
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}
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long GetMessageDialogStyle() const { return m_dialogStyle; }
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// customization of the message box buttons
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virtual bool SetYesNoLabels(const ButtonLabel& yes,const ButtonLabel& no)
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{
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DoSetCustomLabel(m_yes, yes);
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DoSetCustomLabel(m_no, no);
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return true;
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}
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virtual bool SetYesNoCancelLabels(const ButtonLabel& yes,
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const ButtonLabel& no,
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const ButtonLabel& cancel)
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{
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DoSetCustomLabel(m_yes, yes);
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DoSetCustomLabel(m_no, no);
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DoSetCustomLabel(m_cancel, cancel);
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return true;
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}
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virtual bool SetOKLabel(const ButtonLabel& ok)
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{
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DoSetCustomLabel(m_ok, ok);
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return true;
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}
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virtual bool SetOKCancelLabels(const ButtonLabel& ok,
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const ButtonLabel& cancel)
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{
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DoSetCustomLabel(m_ok, ok);
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DoSetCustomLabel(m_cancel, cancel);
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return true;
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}
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virtual bool SetHelpLabel(const ButtonLabel& help)
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{
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DoSetCustomLabel(m_help, help);
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return true;
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}
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// test if any custom labels were set
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bool HasCustomLabels() const
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{
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return !(m_ok.empty() && m_cancel.empty() && m_help.empty() &&
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m_yes.empty() && m_no.empty());
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}
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// these functions return the label to be used for the button which is
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// either a custom label explicitly set by the user or the default label,
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// i.e. they always return a valid string
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wxString GetYesLabel() const
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{ return m_yes.empty() ? GetDefaultYesLabel() : m_yes; }
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wxString GetNoLabel() const
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{ return m_no.empty() ? GetDefaultNoLabel() : m_no; }
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wxString GetOKLabel() const
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{ return m_ok.empty() ? GetDefaultOKLabel() : m_ok; }
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wxString GetCancelLabel() const
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{ return m_cancel.empty() ? GetDefaultCancelLabel() : m_cancel; }
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wxString GetHelpLabel() const
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{ return m_help.empty() ? GetDefaultHelpLabel() : m_help; }
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// based on message dialog style, returns exactly one of: wxICON_NONE,
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// wxICON_ERROR, wxICON_WARNING, wxICON_QUESTION, wxICON_INFORMATION,
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// wxICON_AUTH_NEEDED
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virtual long GetEffectiveIcon() const
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{
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if ( m_dialogStyle & wxICON_NONE )
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return wxICON_NONE;
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else if ( m_dialogStyle & wxICON_ERROR )
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return wxICON_ERROR;
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else if ( m_dialogStyle & wxICON_WARNING )
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return wxICON_WARNING;
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else if ( m_dialogStyle & wxICON_QUESTION )
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return wxICON_QUESTION;
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else if ( m_dialogStyle & wxICON_INFORMATION )
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return wxICON_INFORMATION;
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else if ( m_dialogStyle & wxYES )
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return wxICON_QUESTION;
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else
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return wxICON_INFORMATION;
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}
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protected:
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// for the platforms not supporting separate main and extended messages
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// this function should be used to combine both of them in a single string
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wxString GetFullMessage() const
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{
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wxString msg = m_message;
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if ( !m_extendedMessage.empty() )
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msg << "\n\n" << m_extendedMessage;
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return msg;
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}
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wxString m_message,
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m_extendedMessage,
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m_caption;
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long m_dialogStyle;
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// this function is called by our public SetXXXLabels() and should assign
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// the value to var with possibly some transformation (e.g. Cocoa version
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// currently uses this to remove any accelerators from the button strings
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// while GTK+ one handles stock items specifically here)
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virtual void DoSetCustomLabel(wxString& var, const ButtonLabel& label)
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{
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var = label.GetAsString();
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}
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// these functions return the custom label or empty string and should be
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// used only in specific circumstances such as creating the buttons with
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// these labels (in which case it makes sense to only use a custom label if
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// it was really given and fall back on stock label otherwise), use the
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// Get{Yes,No,OK,Cancel}Label() methods above otherwise
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const wxString& GetCustomYesLabel() const { return m_yes; }
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const wxString& GetCustomNoLabel() const { return m_no; }
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const wxString& GetCustomOKLabel() const { return m_ok; }
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const wxString& GetCustomHelpLabel() const { return m_help; }
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const wxString& GetCustomCancelLabel() const { return m_cancel; }
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private:
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// these functions may be overridden to provide different defaults for the
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// default button labels (this is used by wxGTK)
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virtual wxString GetDefaultYesLabel() const { return wxGetTranslation("Yes"); }
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virtual wxString GetDefaultNoLabel() const { return wxGetTranslation("No"); }
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virtual wxString GetDefaultOKLabel() const { return wxGetTranslation("OK"); }
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virtual wxString GetDefaultCancelLabel() const { return wxGetTranslation("Cancel"); }
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virtual wxString GetDefaultHelpLabel() const { return wxGetTranslation("Help"); }
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// labels for the buttons, initially empty meaning that the defaults should
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// be used, use GetYes/No/OK/CancelLabel() to access them
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wxString m_yes,
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m_no,
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m_ok,
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m_cancel,
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m_help;
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wxDECLARE_NO_COPY_CLASS(wxMessageDialogBase);
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};
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#include "wx/generic/msgdlgg.h"
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#if defined(__WX_COMPILING_MSGDLGG_CPP__) || \
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defined(__WXUNIVERSAL__) || defined(__WXGPE__) || \
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(defined(__WXGTK__) && !defined(__WXGTK20__))
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#define wxMessageDialog wxGenericMessageDialog
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#elif defined(__WXCOCOA__)
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#include "wx/cocoa/msgdlg.h"
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#elif defined(__WXMSW__)
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#include "wx/msw/msgdlg.h"
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#elif defined(__WXMOTIF__)
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#include "wx/motif/msgdlg.h"
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#elif defined(__WXGTK20__)
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#include "wx/gtk/msgdlg.h"
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#elif defined(__WXMAC__)
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#include "wx/osx/msgdlg.h"
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#elif defined(__WXPM__)
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#include "wx/os2/msgdlg.h"
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#endif
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// ----------------------------------------------------------------------------
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// wxMessageBox: the simplest way to use wxMessageDialog
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// ----------------------------------------------------------------------------
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int WXDLLIMPEXP_CORE wxMessageBox(const wxString& message,
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const wxString& caption = wxMessageBoxCaptionStr,
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long style = wxOK | wxCENTRE,
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wxWindow *parent = NULL,
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int x = wxDefaultCoord, int y = wxDefaultCoord);
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#endif // wxUSE_MSGDLG
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#endif // _WX_MSGDLG_H_BASE_
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