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[wxWidgets.git] / src / common / pickerbase.cpp
1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: src/common/pickerbase.cpp
3 // Purpose: wxPickerBase class implementation
4 // Author: Francesco Montorsi
5 // Modified by:
6 // Created: 15/04/2006
7 // RCS-ID: $Id$
8 // Copyright: (c) Francesco Montorsi
9 // Licence: wxWindows licence
10 ///////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #if wxUSE_COLOURPICKERCTRL || \
28 wxUSE_DIRPICKERCTRL || \
29 wxUSE_FILEPICKERCTRL || \
30 wxUSE_FONTPICKERCTRL
31
32 #include "wx/pickerbase.h"
33
34 #ifndef WX_PRECOMP
35 #include "wx/textctrl.h"
36 #endif
37
38 // ============================================================================
39 // implementation
40 // ============================================================================
41
42 IMPLEMENT_ABSTRACT_CLASS(wxPickerBase, wxWindow)
43
44 BEGIN_EVENT_TABLE(wxPickerBase, wxControl)
45 EVT_SIZE(wxPickerBase::OnSize)
46 WX_EVENT_TABLE_CONTROL_CONTAINER(wxPickerBase)
47 END_EVENT_TABLE()
48 WX_DELEGATE_TO_CONTROL_CONTAINER(wxPickerBase)
49
50
51 // ----------------------------------------------------------------------------
52 // wxPickerBase
53 // ----------------------------------------------------------------------------
54
55 bool wxPickerBase::CreateBase(wxWindow *parent,
56 wxWindowID id,
57 const wxString &text,
58 const wxPoint& pos,
59 const wxSize& size,
60 long style,
61 const wxValidator& validator,
62 const wxString& name)
63 {
64 // remove any border style from our style as wxPickerBase's window must be
65 // invisible (user styles must be set on the textctrl or the platform-dependent picker)
66 style &= ~wxBORDER_MASK;
67 if (!wxControl::Create(parent, id, pos, size, style | wxNO_BORDER | wxTAB_TRAVERSAL,
68 validator, name))
69 return false;
70
71 m_sizer = new wxBoxSizer(wxHORIZONTAL);
72
73 if (HasFlag(wxPB_USE_TEXTCTRL))
74 {
75 // NOTE: the style of this class (wxPickerBase) and the style of the
76 // attached text control are different: GetTextCtrlStyle() extracts
77 // the styles related to the textctrl from the styles passed here
78 m_text = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition,
79 wxDefaultSize, GetTextCtrlStyle(style));
80 if (!m_text)
81 {
82 wxFAIL_MSG( wxT("wxPickerBase's textctrl creation failed") );
83 return false;
84 }
85
86 // set the maximum lenght allowed for this textctrl.
87 // This is very important since any change to it will trigger an update in
88 // the m_picker; for very long strings, this real-time synchronization could
89 // become a CPU-blocker and thus should be avoided.
90 // 32 characters will be more than enough for all common uses.
91 m_text->SetMaxLength(32);
92
93 // set the initial contents of the textctrl
94 m_text->SetValue(text);
95
96 m_text->Connect(wxEVT_COMMAND_TEXT_UPDATED,
97 wxCommandEventHandler(wxPickerBase::OnTextCtrlUpdate),
98 NULL, this);
99 m_text->Connect(wxEVT_KILL_FOCUS,
100 wxFocusEventHandler(wxPickerBase::OnTextCtrlKillFocus),
101 NULL, this);
102
103 m_text->Connect(wxEVT_DESTROY,
104 wxWindowDestroyEventHandler(wxPickerBase::OnTextCtrlDelete),
105 NULL, this);
106
107 m_sizer->Add(m_text, 2, GetDefaultTextCtrlFlag(), 5);
108 }
109
110 return true;
111 }
112
113 void wxPickerBase::PostCreation()
114 {
115 // the picker's proportion value is fixed
116 m_sizer->Add(m_picker, 1, GetDefaultPickerCtrlFlag(), 5);
117
118 SetSizer(m_sizer);
119 m_sizer->SetSizeHints(this);
120 }
121
122 void wxPickerBase::OnTextCtrlKillFocus(wxFocusEvent &)
123 {
124 wxASSERT(m_text);
125
126 // don't leave the textctrl empty
127 if (m_text->GetValue().empty())
128 UpdateTextCtrlFromPicker();
129 }
130
131 void wxPickerBase::OnTextCtrlDelete(wxWindowDestroyEvent &)
132 {
133 // the textctrl has been deleted; our pointer is invalid!
134 m_text = NULL;
135 }
136
137 void wxPickerBase::OnTextCtrlUpdate(wxCommandEvent &)
138 {
139 // for each text-change, update the picker
140 UpdatePickerFromTextCtrl();
141 }
142
143 void wxPickerBase::OnSize(wxSizeEvent &event)
144 {
145 if (GetAutoLayout())
146 Layout();
147 event.Skip();
148 }
149
150 #endif // Any picker in use