include/wx/clrpicker.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/clrpicker.h
   3 // Purpose:     wxColourPickerCtrl base header
   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_CLRPICKER_H_BASE_
  13 #define _WX_CLRPICKER_H_BASE_
  14
  15 #include "wx/defs.h"
  16
  17
  18 #if wxUSE_COLOURPICKERCTRL
  19
  20 #include "wx/pickerbase.h"
  21
  22
  23 class WXDLLIMPEXP_FWD_CORE wxColourPickerEvent;
  24
  25 extern WXDLLEXPORT_DATA(const wxChar) wxColourPickerWidgetNameStr[];
  26 extern WXDLLEXPORT_DATA(const wxChar) wxColourPickerCtrlNameStr[];
  27
  28
  29 // ----------------------------------------------------------------------------
  30 // wxColourPickerWidgetBase: a generic abstract interface which must be
  31 //                           implemented by controls used by wxColourPickerCtrl
  32 // ----------------------------------------------------------------------------
  33
  34 class WXDLLIMPEXP_CORE wxColourPickerWidgetBase
  35 {
  36 public:
  37     wxColourPickerWidgetBase() { m_colour = *wxBLACK; }
  38     virtual ~wxColourPickerWidgetBase() {}
  39
  40     wxColour GetColour() const
  41         { return m_colour; }
  42     virtual void SetColour(const wxColour &col)
  43         { m_colour = col; UpdateColour(); }
  44     virtual void SetColour(const wxString &col)
  45         { m_colour.Set(col); UpdateColour(); }
  46
  47 protected:
  48
  49     virtual void UpdateColour() = 0;
  50
  51     // the current colour (may be invalid if none)
  52     wxColour m_colour;
  53 };
  54
  55
  56 // Styles which must be supported by all controls implementing wxColourPickerWidgetBase
  57 // NB: these styles must be defined to carefully-chosen values to
  58 //     avoid conflicts with wxButton's styles
  59
  60 // show the colour in HTML form (#AABBCC) as colour button label
  61 // (instead of no label at all)
  62 // NOTE: this style is supported just by wxColourButtonGeneric and
  63 //       thus is not exposed in wxColourPickerCtrl
  64 #define wxCLRP_SHOW_LABEL             0x0008
  65
  66 // map platform-dependent controls which implement the wxColourPickerWidgetBase
  67 // under the name "wxColourPickerWidget".
  68 // NOTE: wxColourPickerCtrl allocates a wxColourPickerWidget and relies on the
  69 //       fact that all classes being mapped as wxColourPickerWidget have the
  70 //       same prototype for their contructor (and also explains why we use
  71 //       define instead of a typedef)
  72 // since GTK > 2.4, there is GtkColorButton
  73 #if defined(__WXGTK24__) && !defined(__WXUNIVERSAL__)
  74     #include "wx/gtk/clrpicker.h"
  75     #define wxColourPickerWidget      wxColourButton
  76 #else
  77     #include "wx/generic/clrpickerg.h"
  78     #define wxColourPickerWidget      wxGenericColourButton
  79 #endif
  80
  81
  82 // ----------------------------------------------------------------------------
  83 // wxColourPickerCtrl: platform-independent class which embeds a
  84 // platform-dependent wxColourPickerWidget and, if wxCLRP_USE_TEXTCTRL style is
  85 // used, a textctrl next to it.
  86 // ----------------------------------------------------------------------------
  87
  88 #define wxCLRP_USE_TEXTCTRL       (wxPB_USE_TEXTCTRL)
  89 #define wxCLRP_DEFAULT_STYLE      0
  90
  91 class WXDLLIMPEXP_CORE wxColourPickerCtrl : public wxPickerBase
  92 {
  93 public:
  94     wxColourPickerCtrl() : m_bIgnoreNextTextCtrlUpdate(false) {}
  95     virtual ~wxColourPickerCtrl() {}
  96
  97
  98     wxColourPickerCtrl(wxWindow *parent, wxWindowID id,
  99         const wxColour& col = *wxBLACK, const wxPoint& pos = wxDefaultPosition,
 100         const wxSize& size = wxDefaultSize, long style = wxCLRP_DEFAULT_STYLE,
 101         const wxValidator& validator = wxDefaultValidator,
 102         const wxString& name = wxColourPickerCtrlNameStr)
 103         : m_bIgnoreNextTextCtrlUpdate(false)
 104         { Create(parent, id, col, pos, size, style, validator, name); }
 105
 106     bool Create(wxWindow *parent, wxWindowID id,
 107            const wxColour& col = *wxBLACK,
 108            const wxPoint& pos = wxDefaultPosition,
 109            const wxSize& size = wxDefaultSize,
 110            long style = wxCLRP_DEFAULT_STYLE,
 111            const wxValidator& validator = wxDefaultValidator,
 112            const wxString& name = wxColourPickerCtrlNameStr);
 113
 114
 115 public:         // public API
 116
 117     // get the colour chosen
 118     wxColour GetColour() const
 119         { return ((wxColourPickerWidget *)m_picker)->GetColour(); }
 120
 121     // set currently displayed color
 122     void SetColour(const wxColour& col);
 123
 124     // set colour using RGB(r,g,b) syntax or considering given text as a colour name;
 125     // returns true if the given text was successfully recognized.
 126     bool SetColour(const wxString& text);
 127
 128
 129 public:        // internal functions
 130
 131     // update the button colour to match the text control contents
 132     void UpdatePickerFromTextCtrl();
 133
 134     // update the text control to match the button's colour
 135     void UpdateTextCtrlFromPicker();
 136
 137     // event handler for our picker
 138     void OnColourChange(wxColourPickerEvent &);
 139
 140 protected:
 141     virtual long GetPickerStyle(long style) const
 142         { return (style & wxCLRP_SHOW_LABEL); }
 143
 144     // true if the next UpdateTextCtrl() call is to ignore
 145     bool m_bIgnoreNextTextCtrlUpdate;
 146
 147 private:
 148     DECLARE_DYNAMIC_CLASS(wxColourPickerCtrl)
 149 };
 150
 151
 152 // ----------------------------------------------------------------------------
 153 // wxColourPickerEvent: used by wxColourPickerCtrl only
 154 // ----------------------------------------------------------------------------
 155
 156 BEGIN_DECLARE_EVENT_TYPES()
 157     DECLARE_EXPORTED_EVENT_TYPE(WXDLLIMPEXP_CORE, wxEVT_COMMAND_COLOURPICKER_CHANGED, 1102)
 158 END_DECLARE_EVENT_TYPES()
 159
 160 class WXDLLIMPEXP_CORE wxColourPickerEvent : public wxCommandEvent
 161 {
 162 public:
 163     wxColourPickerEvent() {}
 164     wxColourPickerEvent(wxObject *generator, int id, const wxColour &col)
 165         : wxCommandEvent(wxEVT_COMMAND_COLOURPICKER_CHANGED, id),
 166           m_colour(col)
 167     {
 168         SetEventObject(generator);
 169     }
 170
 171     wxColour GetColour() const { return m_colour; }
 172     void SetColour(const wxColour &c) { m_colour = c; }
 173
 174
 175     // default copy ctor, assignment operator and dtor are ok
 176     virtual wxEvent *Clone() const { return new wxColourPickerEvent(*this); }
 177
 178 private:
 179     wxColour m_colour;
 180
 181     DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxColourPickerEvent)
 182 };
 183
 184 // ----------------------------------------------------------------------------
 185 // event types and macros
 186 // ----------------------------------------------------------------------------
 187
 188 typedef void (wxEvtHandler::*wxColourPickerEventFunction)(wxColourPickerEvent&);
 189
 190 #define wxColourPickerEventHandler(func) \
 191     (wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxColourPickerEventFunction, &func)
 192
 193 #define EVT_COLOURPICKER_CHANGED(id, fn) \
 194     wx__DECLARE_EVT1(wxEVT_COMMAND_COLOURPICKER_CHANGED, id, wxColourPickerEventHandler(fn))
 195
 196
 197 #endif // wxUSE_COLOURPICKERCTRL
 198
 199 #endif // _WX_CLRPICKER_H_BASE_
 200