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 #include "wx/containr.h"
  18
  19 class WXDLLIMPEXP_FWD_CORE wxTextCtrl;
  20 class WXDLLIMPEXP_FWD_CORE wxToolTip;
  21
  22 extern WXDLLIMPEXP_DATA_CORE(const char) wxButtonNameStr[];
  23
  24 // ----------------------------------------------------------------------------
  25 // wxPickerBase is the base class for the picker controls which support
  26 // a wxPB_USE_TEXTCTRL style; i.e. for those pickers which can use an auxiliary
  27 // text control next to the 'real' picker.
  28 //
  29 // The wxTextPickerHelper class manages enabled/disabled state of the text control,
  30 // its sizing and positioning.
  31 // ----------------------------------------------------------------------------
  32
  33 #define wxPB_USE_TEXTCTRL           0x0002
  34
  35 class WXDLLIMPEXP_CORE wxPickerBase : public wxControl
  36 {
  37 public:
  38     // ctor: text is the associated text control
  39     wxPickerBase() : m_text(NULL), m_picker(NULL), m_sizer(NULL)
  40         { WX_INIT_CONTROL_CONTAINER(); }
  41     virtual ~wxPickerBase() {}
  42
  43
  44     // if present, intercepts wxPB_USE_TEXTCTRL style and creates the text control
  45     // The 3rd argument is the initial wxString to display in the text control
  46     bool CreateBase(wxWindow *parent,
  47                     wxWindowID id,
  48                     const wxString& text = wxEmptyString,
  49                     const wxPoint& pos = wxDefaultPosition,
  50                     const wxSize& size = wxDefaultSize,
  51                     long style = 0,
  52                     const wxValidator& validator = wxDefaultValidator,
  53                     const wxString& name = wxButtonNameStr);
  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     // methods that derived class must/may override
 109     virtual void UpdatePickerFromTextCtrl() = 0;
 110     virtual void UpdateTextCtrlFromPicker() = 0;
 111
 112 protected:
 113     // overridden base class methods
 114 #if wxUSE_TOOLTIPS
 115     virtual void DoSetToolTip(wxToolTip *tip);
 116 #endif // wxUSE_TOOLTIPS
 117
 118
 119     // event handlers
 120     void OnTextCtrlDelete(wxWindowDestroyEvent &);
 121     void OnTextCtrlUpdate(wxCommandEvent &);
 122     void OnTextCtrlKillFocus(wxFocusEvent &);
 123
 124     void OnSize(wxSizeEvent &);
 125
 126     // returns the set of styles for the attached wxTextCtrl
 127     // from given wxPickerBase's styles
 128     virtual long GetTextCtrlStyle(long style) const
 129         { return (style & wxWINDOW_STYLE_MASK); }
 130
 131     // returns the set of styles for the m_picker
 132     virtual long GetPickerStyle(long style) const
 133         { return (style & wxWINDOW_STYLE_MASK); }
 134
 135
 136     wxSizerItem *GetPickerCtrlItem() const
 137     {
 138         if (this->HasTextCtrl())
 139             return m_sizer->GetItem((size_t)1);
 140         return m_sizer->GetItem((size_t)0);
 141     }
 142
 143     wxSizerItem *GetTextCtrlItem() const
 144     {
 145         wxASSERT(this->HasTextCtrl());
 146         return m_sizer->GetItem((size_t)0);
 147     }
 148
 149     int GetDefaultPickerCtrlFlag() const
 150     {
 151         // on macintosh, without additional borders
 152         // there's not enough space for focus rect
 153         return wxALIGN_CENTER_VERTICAL|wxGROW
 154 #ifdef __WXMAC__
 155             | wxTOP | wxRIGHT | wxBOTTOM
 156 #endif
 157             ;
 158     }
 159
 160     int GetDefaultTextCtrlFlag() const
 161     {
 162         // on macintosh, without wxALL there's not enough space for focus rect
 163         return wxALIGN_CENTER_VERTICAL
 164 #ifdef __WXMAC__
 165             | wxALL
 166 #else
 167             | wxRIGHT
 168 #endif
 169             ;
 170     }
 171
 172     void PostCreation();
 173
 174 protected:
 175     wxTextCtrl *m_text;     // can be NULL
 176     wxControl *m_picker;
 177     wxBoxSizer *m_sizer;
 178
 179 private:
 180     DECLARE_ABSTRACT_CLASS(wxPickerBase)
 181     DECLARE_EVENT_TABLE()
 182
 183     // This class must be something just like a panel...
 184     WX_DECLARE_CONTROL_CONTAINER();
 185 };
 186
 187
 188 #endif
 189     // _WX_PICKERBASE_H_BASE_