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///////////////////////////////////////////////////////////////////////////////
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// Name: src/common/pickerbase.cpp
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// Purpose: wxPickerBase class implementation
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// Author: Francesco Montorsi
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// RCS-ID: $Id: pickerbase.cpp 71366 2012-05-05 14:09:59Z VZ $
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// Copyright: (c) Francesco Montorsi
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// ============================================================================
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// ----------------------------------------------------------------------------
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// ----------------------------------------------------------------------------
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#if wxUSE_COLOURPICKERCTRL || \
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wxUSE_DIRPICKERCTRL || \
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wxUSE_FILEPICKERCTRL || \
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#include "wx/pickerbase.h"
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#include "wx/tooltip.h"
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#include "wx/textctrl.h"
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// ============================================================================
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// ============================================================================
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IMPLEMENT_ABSTRACT_CLASS(wxPickerBase, wxControl)
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// ----------------------------------------------------------------------------
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// ----------------------------------------------------------------------------
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bool wxPickerBase::CreateBase(wxWindow *parent,
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const wxValidator& validator,
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// remove any border style from our style as wxPickerBase's window must be
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// invisible (user styles must be set on the textctrl or the platform-dependent picker)
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style &= ~wxBORDER_MASK;
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if (!wxControl::Create(parent, id, pos, size, style | wxNO_BORDER | wxTAB_TRAVERSAL,
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m_sizer = new wxBoxSizer(wxHORIZONTAL);
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if (HasFlag(wxPB_USE_TEXTCTRL))
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// NOTE: the style of this class (wxPickerBase) and the style of the
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// attached text control are different: GetTextCtrlStyle() extracts
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// the styles related to the textctrl from the styles passed here
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m_text = new wxTextCtrl(this, wxID_ANY, wxEmptyString,
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wxDefaultPosition, wxDefaultSize,
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GetTextCtrlStyle(style));
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wxFAIL_MSG( wxT("wxPickerBase's textctrl creation failed") );
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// set the maximum length allowed for this textctrl.
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// This is very important since any change to it will trigger an update in
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// the m_picker; for very long strings, this real-time synchronization could
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// become a CPU-blocker and thus should be avoided.
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// 32 characters will be more than enough for all common uses.
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m_text->SetMaxLength(32);
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// set the initial contents of the textctrl
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m_text->SetValue(text);
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m_text->Connect(m_text->GetId(), wxEVT_COMMAND_TEXT_UPDATED,
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wxCommandEventHandler(wxPickerBase::OnTextCtrlUpdate),
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m_text->Connect(m_text->GetId(), wxEVT_KILL_FOCUS,
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wxFocusEventHandler(wxPickerBase::OnTextCtrlKillFocus),
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m_text->Connect(m_text->GetId(), wxEVT_DESTROY,
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wxWindowDestroyEventHandler(wxPickerBase::OnTextCtrlDelete),
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// the text control's proportion values defaults to 2
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m_sizer->Add(m_text, 2, GetDefaultTextCtrlFlag(), 5);
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void wxPickerBase::PostCreation()
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// the picker's proportion value defaults to 1 when there's no text control
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// associated with it - in that case it defaults to 0
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m_sizer->Add(m_picker, HasTextCtrl() ? 0 : 1, GetDefaultPickerCtrlFlag(), 5);
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// For aesthetic reasons, make sure the picker is at least as high as the
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// associated text control and is always at least square, unless we are
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// explicitly using wxPB_SMALL style to force it to take as little space as
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if ( !HasFlag(wxPB_SMALL) )
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const wxSize pickerBestSize(m_picker->GetBestSize());
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const wxSize textBestSize( HasTextCtrl() ? m_text->GetBestSize() : wxSize());
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wxSize pickerMinSize;
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pickerMinSize.y = wxMax(pickerBestSize.y, textBestSize.y);
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pickerMinSize.x = wxMax(pickerBestSize.x, pickerMinSize.y);
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if ( pickerMinSize != pickerBestSize )
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m_picker->SetMinSize(pickerMinSize);
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SetInitialSize( GetMinSize() );
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void wxPickerBase::DoSetToolTip(wxToolTip *tip)
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// don't set the tooltip on us but rather on our two child windows
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// as otherwise it would appear only when the cursor is placed on the
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// small area around the child windows which belong to wxPickerBase
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m_picker->SetToolTip(tip);
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// do a copy as wxWindow will own the pointer we pass
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m_text->SetToolTip(tip ? new wxToolTip(tip->GetTip()) : NULL);
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#endif // wxUSE_TOOLTIPS
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// ----------------------------------------------------------------------------
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// wxPickerBase - event handlers
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// ----------------------------------------------------------------------------
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void wxPickerBase::OnTextCtrlKillFocus(wxFocusEvent& event)
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// don't leave the textctrl empty
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if (m_text && m_text->GetValue().empty())
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UpdateTextCtrlFromPicker();
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void wxPickerBase::OnTextCtrlDelete(wxWindowDestroyEvent &)
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// the textctrl has been deleted; our pointer is invalid!
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void wxPickerBase::OnTextCtrlUpdate(wxCommandEvent &)
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// for each text-change, update the picker
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UpdatePickerFromTextCtrl();
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#endif // Any picker in use