include/wx/pickerbase.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/pickerbase.h
   3 // Purpose:     wxPickerBase definition
   4 // Author:      Francesco Montorsi (based on Vadim Zeitlin's code)
   5 // Modified by:
   6 // Created:     14/4/2006
   7 // Copyright:   (c) Vadim Zeitlin, Francesco Montorsi
   8 // RCS-ID:      $Id$
   9 // Licence:     wxWindows Licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_PICKERBASE_H_BASE_
  13 #define _WX_PICKERBASE_H_BASE_
  14
  15 #include "wx/control.h"
  16 #include "wx/sizer.h"
  17
  18 class WXDLLIMPEXP_CORE wxTextCtrl;
  19
  20 extern WXDLLEXPORT_DATA(const wxChar) wxButtonNameStr[];
  21
  22 // ----------------------------------------------------------------------------
  23 // wxPickerBase is the base class for the picker controls which support
  24 // a wxPB_USE_TEXTCTRL style; i.e. for those pickers which can use an auxiliary
  25 // text control next to the 'real' picker.
  26 //
  27 // The wxTextPickerHelper class manages enabled/disabled state of the text control,
  28 // its sizing and positioning.
  29 // ----------------------------------------------------------------------------
  30
  31 #define wxPB_USE_TEXTCTRL           0x0002
  32
  33 class WXDLLIMPEXP_CORE wxPickerBase : public wxControl
  34 {
  35 public:
  36     // ctor: text is the associated text control
  37     wxPickerBase() : m_text(NULL), m_picker(NULL), m_sizer(NULL)
  38         { m_container.SetContainerWindow(this); }
  39     virtual ~wxPickerBase() {}
  40
  41
  42     // if present, intercepts wxPB_USE_TEXTCTRL style and creates the text control
  43     // The 3rd argument is the initial wxString to display in the text control
  44     bool CreateBase(wxWindow *parent,
  45                     wxWindowID id,
  46                     const wxString& text = wxEmptyString,
  47                     const wxPoint& pos = wxDefaultPosition,
  48                     const wxSize& size = wxDefaultSize,
  49                     long style = 0,
  50                     const wxValidator& validator = wxDefaultValidator,
  51                     const wxString& name = wxButtonNameStr,
  52                     long textstyle = 0);
  53
  54
  55 public:     // public API
  56
  57     // margin between the text control and the picker
  58     void SetInternalMargin(int newmargin)
  59         { GetTextCtrlItem()->SetBorder(newmargin); m_sizer->Layout(); }
  60     int GetInternalMargin() const
  61         { return GetTextCtrlItem()->GetBorder(); }
  62
  63     // proportion of the text control
  64     void SetTextCtrlProportion(int prop)
  65         { GetTextCtrlItem()->SetProportion(prop); m_sizer->Layout(); }
  66     int GetTextCtrlProportion() const
  67         { return GetTextCtrlItem()->GetProportion(); }
  68
  69     // proportion of the picker control
  70     void SetPickerCtrlProportion(int prop)
  71         { GetPickerCtrlItem()->SetProportion(prop); m_sizer->Layout(); }
  72     int GetPickerCtrlProportion() const
  73         { return GetPickerCtrlItem()->GetProportion(); }
  74
  75     bool IsTextCtrlGrowable() const
  76         { return (GetTextCtrlItem()->GetFlag() & wxGROW) != 0; }
  77     void SetTextCtrlGrowable(bool grow = true)
  78     {
  79         int f = GetDefaultTextCtrlFlag();
  80         if ( grow )
  81             f |= wxGROW;
  82         else
  83             f &= ~wxGROW;
  84
  85         GetTextCtrlItem()->SetFlag(f);
  86     }
  87
  88     bool IsPickerCtrlGrowable() const
  89         { return (GetPickerCtrlItem()->GetFlag() & wxGROW) != 0; }
  90     void SetPickerCtrlGrowable(bool grow = true)
  91     {
  92         int f = GetDefaultPickerCtrlFlag();
  93         if ( grow )
  94             f |= wxGROW;
  95         else
  96             f &= ~wxGROW;
  97
  98         GetPickerCtrlItem()->SetFlag(f);
  99     }
 100
 101     bool HasTextCtrl() const
 102         { return m_text != NULL; }
 103     wxTextCtrl *GetTextCtrl()
 104         { return m_text; }
 105     wxControl *GetPickerCtrl()
 106         { return m_picker; }
 107
 108 public:     // methods that derived class must/may override
 109
 110     virtual void UpdatePickerFromTextCtrl() = 0;
 111     virtual void UpdateTextCtrlFromPicker() = 0;
 112
 113 protected:        // utility functions
 114
 115     // event handlers
 116     void OnTextCtrlDelete(wxWindowDestroyEvent &);
 117     void OnTextCtrlUpdate(wxCommandEvent &);
 118     void OnTextCtrlKillFocus(wxFocusEvent &);
 119
 120     void OnSize(wxSizeEvent &);
 121
 122     // returns the set of styles for the attached wxTextCtrl
 123     // from given wxPickerBase's styles
 124     virtual long GetTextCtrlStyle(long style) const
 125         { return (style & wxWINDOW_STYLE_MASK); }
 126
 127     // returns the set of styles for the m_picker
 128     virtual long GetPickerStyle(long style) const
 129         { return (style & wxWINDOW_STYLE_MASK); }
 130
 131
 132     wxSizerItem *GetPickerCtrlItem() const
 133     {
 134         if (this->HasTextCtrl())
 135             return m_sizer->GetItem((size_t)1);
 136         return m_sizer->GetItem((size_t)0);
 137     }
 138
 139     wxSizerItem *GetTextCtrlItem() const
 140     {
 141         wxASSERT(this->HasTextCtrl());
 142         return m_sizer->GetItem((size_t)0);
 143     }
 144
 145     int GetDefaultPickerCtrlFlag() const
 146     {
 147         // on macintosh, without additional borders
 148         // there's not enough space for focus rect
 149         return wxALIGN_CENTER_VERTICAL|wxGROW
 150 #ifdef __WXMAC__
 151             | wxTOP | wxRIGHT | wxBOTTOM
 152 #endif
 153             ;
 154     }
 155
 156     int GetDefaultTextCtrlFlag() const
 157     {
 158         // on macintosh, without wxALL there's not enough space for focus rect
 159         return wxALIGN_CENTER_VERTICAL
 160 #ifdef __WXMAC__
 161             | wxALL
 162 #else
 163             | wxRIGHT
 164 #endif
 165             ;
 166     }
 167
 168     void PostCreation();
 169
 170 protected:
 171     wxTextCtrl *m_text;     // can be NULL
 172     wxControl *m_picker;
 173     wxBoxSizer *m_sizer;
 174
 175 private:
 176     DECLARE_ABSTRACT_CLASS(wxPickerBase)
 177     DECLARE_EVENT_TABLE()
 178
 179     // This class must be something just like a panel...
 180     WX_DECLARE_CONTROL_CONTAINER();
 181 };
 182
 183
 184 #endif
 185     // _WX_PICKERBASE_H_BASE_