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_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 #if defined(__WXGTK24__)        // since GTK > 2.4, there is GtkColorButton
  73     #include "wx/gtk/clrpicker.h"
  74     #define wxColourPickerWidget      wxColourButton
  75 #else
  76     #include "wx/generic/clrpickerg.h"
  77     #define wxColourPickerWidget      wxGenericColourButton
  78 #endif
  79
  80
  81 // ----------------------------------------------------------------------------
  82 // wxColourPickerCtrl: platform-independent class which embeds a
  83 // platform-dependent wxColourPickerWidget and, if wxCLRP_USE_TEXTCTRL style is
  84 // used, a textctrl next to it.
  85 // ----------------------------------------------------------------------------
  86
  87 #define wxCLRP_USE_TEXTCTRL       (wxPB_USE_TEXTCTRL)
  88 #define wxCLRP_DEFAULT_STYLE      0
  89
  90 class WXDLLIMPEXP_CORE wxColourPickerCtrl : public wxPickerBase
  91 {
  92 public:
  93     wxColourPickerCtrl() : m_bIgnoreNextTextCtrlUpdate(false) {}
  94     virtual ~wxColourPickerCtrl() {}
  95
  96
  97     wxColourPickerCtrl(wxWindow *parent, wxWindowID id,
  98         const wxColour& col = *wxBLACK, const wxPoint& pos = wxDefaultPosition,
  99         const wxSize& size = wxDefaultSize, long style = wxCLRP_DEFAULT_STYLE,
 100         const wxValidator& validator = wxDefaultValidator,
 101         const wxString& name = wxColourPickerCtrlNameStr)
 102         : m_bIgnoreNextTextCtrlUpdate(false)
 103         { Create(parent, id, col, pos, size, style, validator, name); }
 104
 105     bool Create(wxWindow *parent, wxWindowID id,
 106            const wxColour& col = *wxBLACK,
 107            const wxPoint& pos = wxDefaultPosition,
 108            const wxSize& size = wxDefaultSize,
 109            long style = wxCLRP_DEFAULT_STYLE,
 110            const wxValidator& validator = wxDefaultValidator,
 111            const wxString& name = wxColourPickerCtrlNameStr);
 112
 113
 114 public:         // public API
 115
 116     // get the colour chosen
 117     wxColour GetColour() const
 118         { return ((wxColourPickerWidget *)m_picker)->GetColour(); }
 119
 120     // set currently displayed color
 121     void SetColour(const wxColour& col);
 122
 123     // set colour using RGB(r,g,b) syntax or considering given text as a colour name;
 124     // returns true if the given text was successfully recognized.
 125     bool SetColour(const wxString& text);
 126
 127
 128 public:        // internal functions
 129
 130     // update the button colour to match the text control contents
 131     void UpdatePickerFromTextCtrl();
 132
 133     // update the text control to match the button's colour
 134     void UpdateTextCtrlFromPicker();
 135
 136     // event handler for our picker
 137     void OnColourChange(wxColourPickerEvent &);
 138
 139 protected:
 140     virtual long GetPickerStyle(long style) const
 141         { return (style & wxCLRP_SHOW_LABEL); }
 142
 143     // true if the next UpdateTextCtrl() call is to ignore
 144     bool m_bIgnoreNextTextCtrlUpdate;
 145
 146 private:
 147     DECLARE_DYNAMIC_CLASS(wxColourPickerCtrl)
 148 };
 149
 150
 151 // ----------------------------------------------------------------------------
 152 // wxColourPickerEvent: used by wxColourPickerCtrl only
 153 // ----------------------------------------------------------------------------
 154
 155 BEGIN_DECLARE_EVENT_TYPES()
 156     DECLARE_EXPORTED_EVENT_TYPE(WXDLLIMPEXP_CORE, wxEVT_COMMAND_COLOURPICKER_CHANGED, 1102)
 157 END_DECLARE_EVENT_TYPES()
 158
 159 class WXDLLIMPEXP_CORE wxColourPickerEvent : public wxCommandEvent
 160 {
 161 public:
 162     wxColourPickerEvent() {}
 163     wxColourPickerEvent(wxObject *generator, int id, const wxColour &col)
 164         : wxCommandEvent(wxEVT_COMMAND_COLOURPICKER_CHANGED, id),
 165           m_colour(col)
 166     {
 167         SetEventObject(generator);
 168     }
 169
 170     wxColour GetColour() const { return m_colour; }
 171     void SetColour(const wxColour &c) { m_colour = c; }
 172
 173
 174     // default copy ctor, assignment operator and dtor are ok
 175     virtual wxEvent *Clone() const { return new wxColourPickerEvent(*this); }
 176
 177 private:
 178     wxColour m_colour;
 179
 180     DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxColourPickerEvent)
 181 };
 182
 183 // ----------------------------------------------------------------------------
 184 // event types and macros
 185 // ----------------------------------------------------------------------------
 186
 187 typedef void (wxEvtHandler::*wxColourPickerEventFunction)(wxColourPickerEvent&);
 188
 189 #define wxColourPickerEventHandler(func) \
 190     (wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxColourPickerEventFunction, &func)
 191
 192 #define EVT_COLOURPICKER_CHANGED(id, fn) \
 193     wx__DECLARE_EVT1(wxEVT_COMMAND_COLOURPICKER_CHANGED, id, wxColourPickerEventHandler(fn))
 194
 195 #ifdef _WX_DEFINE_DATE_EVENTS_
 196     DEFINE_EVENT_TYPE(wxEVT_COMMAND_COLOURPICKER_CHANGED)
 197
 198     IMPLEMENT_DYNAMIC_CLASS(wxColourPickerEvent, wxCommandEvent)
 199 #endif
 200
 201
 202
 203 #endif // wxUSE_COLOURPICKERCTRL
 204
 205 #endif // _WX_CLRPICKER_H_BASE_
 206