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 WXDLLIMPEXP_DATA_CORE(const char) wxColourPickerWidgetNameStr[];
  26 extern WXDLLIMPEXP_DATA_CORE(const char) wxColourPickerCtrlNameStr[];
  27
  28 // show the colour in HTML form (#AABBCC) as colour button label
  29 #define wxCLRBTN_SHOW_LABEL     100
  30
  31 // the default style
  32 #define wxCLRBTN_DEFAULT_STYLE  (wxCLRBTN_SHOW_LABEL)
  33
  34
  35
  36 // ----------------------------------------------------------------------------
  37 // wxColourPickerWidgetBase: a generic abstract interface which must be
  38 //                           implemented by controls used by wxColourPickerCtrl
  39 // ----------------------------------------------------------------------------
  40
  41 class WXDLLIMPEXP_CORE wxColourPickerWidgetBase
  42 {
  43 public:
  44     wxColourPickerWidgetBase() { m_colour = *wxBLACK; }
  45     virtual ~wxColourPickerWidgetBase() {}
  46
  47     wxColour GetColour() const
  48         { return m_colour; }
  49     virtual void SetColour(const wxColour &col)
  50         { m_colour = col; UpdateColour(); }
  51     virtual void SetColour(const wxString &col)
  52         { m_colour.Set(col); UpdateColour(); }
  53
  54 protected:
  55
  56     virtual void UpdateColour() = 0;
  57
  58     // the current colour (may be invalid if none)
  59     wxColour m_colour;
  60 };
  61
  62
  63 // Styles which must be supported by all controls implementing wxColourPickerWidgetBase
  64 // NB: these styles must be defined to carefully-chosen values to
  65 //     avoid conflicts with wxButton's styles
  66
  67 // show the colour in HTML form (#AABBCC) as colour button label
  68 // (instead of no label at all)
  69 // NOTE: this style is supported just by wxColourButtonGeneric and
  70 //       thus is not exposed in wxColourPickerCtrl
  71 #define wxCLRP_SHOW_LABEL             0x0008
  72
  73 // map platform-dependent controls which implement the wxColourPickerWidgetBase
  74 // under the name "wxColourPickerWidget".
  75 // NOTE: wxColourPickerCtrl allocates a wxColourPickerWidget and relies on the
  76 //       fact that all classes being mapped as wxColourPickerWidget have the
  77 //       same prototype for their contructor (and also explains why we use
  78 //       define instead of a typedef)
  79 // since GTK > 2.4, there is GtkColorButton
  80 #if defined(__WXGTK20__) && !defined(__WXUNIVERSAL__)
  81     #include "wx/gtk/clrpicker.h"
  82     #define wxColourPickerWidget      wxColourButton
  83 #else
  84     #include "wx/generic/clrpickerg.h"
  85     #define wxColourPickerWidget      wxGenericColourButton
  86 #endif
  87
  88
  89 // ----------------------------------------------------------------------------
  90 // wxColourPickerCtrl: platform-independent class which embeds a
  91 // platform-dependent wxColourPickerWidget and, if wxCLRP_USE_TEXTCTRL style is
  92 // used, a textctrl next to it.
  93 // ----------------------------------------------------------------------------
  94
  95 #define wxCLRP_USE_TEXTCTRL       (wxPB_USE_TEXTCTRL)
  96 #define wxCLRP_DEFAULT_STYLE      0
  97
  98 class WXDLLIMPEXP_CORE wxColourPickerCtrl : public wxPickerBase
  99 {
 100 public:
 101     wxColourPickerCtrl() : m_bIgnoreNextTextCtrlUpdate(false) {}
 102     virtual ~wxColourPickerCtrl() {}
 103
 104
 105     wxColourPickerCtrl(wxWindow *parent, wxWindowID id,
 106         const wxColour& col = *wxBLACK, const wxPoint& pos = wxDefaultPosition,
 107         const wxSize& size = wxDefaultSize, long style = wxCLRP_DEFAULT_STYLE,
 108         const wxValidator& validator = wxDefaultValidator,
 109         const wxString& name = wxColourPickerCtrlNameStr)
 110         : m_bIgnoreNextTextCtrlUpdate(false)
 111         { Create(parent, id, col, pos, size, style, validator, name); }
 112
 113     bool Create(wxWindow *parent, wxWindowID id,
 114            const wxColour& col = *wxBLACK,
 115            const wxPoint& pos = wxDefaultPosition,
 116            const wxSize& size = wxDefaultSize,
 117            long style = wxCLRP_DEFAULT_STYLE,
 118            const wxValidator& validator = wxDefaultValidator,
 119            const wxString& name = wxColourPickerCtrlNameStr);
 120
 121
 122 public:         // public API
 123
 124     // get the colour chosen
 125     wxColour GetColour() const
 126         { return ((wxColourPickerWidget *)m_picker)->GetColour(); }
 127
 128     // set currently displayed color
 129     void SetColour(const wxColour& col);
 130
 131     // set colour using RGB(r,g,b) syntax or considering given text as a colour name;
 132     // returns true if the given text was successfully recognized.
 133     bool SetColour(const wxString& text);
 134
 135
 136 public:        // internal functions
 137
 138     // update the button colour to match the text control contents
 139     void UpdatePickerFromTextCtrl();
 140
 141     // update the text control to match the button's colour
 142     void UpdateTextCtrlFromPicker();
 143
 144     // event handler for our picker
 145     void OnColourChange(wxColourPickerEvent &);
 146
 147 protected:
 148     virtual long GetPickerStyle(long style) const
 149         { return (style & wxCLRP_SHOW_LABEL); }
 150
 151     // true if the next UpdateTextCtrl() call is to ignore
 152     bool m_bIgnoreNextTextCtrlUpdate;
 153
 154 private:
 155     DECLARE_DYNAMIC_CLASS(wxColourPickerCtrl)
 156 };
 157
 158
 159 // ----------------------------------------------------------------------------
 160 // wxColourPickerEvent: used by wxColourPickerCtrl only
 161 // ----------------------------------------------------------------------------
 162
 163 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_CORE, wxEVT_COMMAND_COLOURPICKER_CHANGED, wxColourPickerEvent )
 164
 165 class WXDLLIMPEXP_CORE wxColourPickerEvent : public wxCommandEvent
 166 {
 167 public:
 168     wxColourPickerEvent() {}
 169     wxColourPickerEvent(wxObject *generator, int id, const wxColour &col)
 170         : wxCommandEvent(wxEVT_COMMAND_COLOURPICKER_CHANGED, id),
 171           m_colour(col)
 172     {
 173         SetEventObject(generator);
 174     }
 175
 176     wxColour GetColour() const { return m_colour; }
 177     void SetColour(const wxColour &c) { m_colour = c; }
 178
 179
 180     // default copy ctor, assignment operator and dtor are ok
 181     virtual wxEvent *Clone() const { return new wxColourPickerEvent(*this); }
 182
 183 private:
 184     wxColour m_colour;
 185
 186     DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxColourPickerEvent)
 187 };
 188
 189 // ----------------------------------------------------------------------------
 190 // event types and macros
 191 // ----------------------------------------------------------------------------
 192
 193 typedef void (wxEvtHandler::*wxColourPickerEventFunction)(wxColourPickerEvent&);
 194
 195 #define wxColourPickerEventHandler(func) \
 196     wxEVENT_HANDLER_CAST(wxColourPickerEventFunction, func)
 197
 198 #define EVT_COLOURPICKER_CHANGED(id, fn) \
 199     wx__DECLARE_EVT1(wxEVT_COMMAND_COLOURPICKER_CHANGED, id, wxColourPickerEventHandler(fn))
 200
 201
 202 #endif // wxUSE_COLOURPICKERCTRL
 203
 204 #endif // _WX_CLRPICKER_H_BASE_
 205