src/common/clrpickercmn.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/clrpickercmn.cpp
   3 // Purpose:     wxColourPickerCtrl class implementation
   4 // Author:      Francesco Montorsi (readapted code written by Vadim Zeitlin)
   5 // Modified by:
   6 // Created:     15/04/2006
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vadim Zeitlin, Francesco Montorsi
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_COLOURPICKERCTRL
  28
  29 #include "wx/clrpicker.h"
  30
  31 #include "wx/textctrl.h"
  32
  33
  34 // ============================================================================
  35 // implementation
  36 // ============================================================================
  37
  38 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COLOURPICKER_CHANGED)
  39 IMPLEMENT_DYNAMIC_CLASS(wxColourPickerCtrl, wxPickerBase)
  40 IMPLEMENT_DYNAMIC_CLASS(wxColourPickerEvent, wxEvent)
  41
  42 // ----------------------------------------------------------------------------
  43 // wxColourPickerCtrl
  44 // ----------------------------------------------------------------------------
  45
  46 #define M_PICKER     ((wxColourPickerWidget*)m_picker)
  47
  48 bool wxColourPickerCtrl::Create( wxWindow *parent, wxWindowID id,
  49                         const wxColour &col,
  50                         const wxPoint &pos, const wxSize &size,
  51                         long style, const wxValidator& validator,
  52                         const wxString &name )
  53 {
  54     if (!wxPickerBase::CreateBase(parent, id, col.GetAsString(), pos, size,
  55                                   style, validator, name))
  56         return false;
  57
  58     // we are not interested to the ID of our picker as we connect
  59     // to its "changed" event dynamically...
  60     m_picker = new wxColourPickerWidget(this, wxID_ANY, col, wxPoint(40,0), wxSize(30,-1),
  61                                         GetPickerStyle(style));
  62     m_picker->Connect(wxEVT_COMMAND_COLOURPICKER_CHANGED,
  63             wxColourPickerEventHandler(wxColourPickerCtrl::OnColourChange),
  64             NULL, this);
  65
  66     return true;
  67 }
  68
  69 void wxColourPickerCtrl::SetColour(const wxColour &col)
  70 {
  71     M_PICKER->SetColour(col);
  72     UpdateTextCtrlFromPicker();
  73 }
  74
  75 bool wxColourPickerCtrl::SetColour(const wxString &text)
  76 {
  77     wxColour col(text);     // smart wxString->wxColour conversion
  78     if ( !col.Ok() )
  79         return false;
  80     M_PICKER->SetColour(col);
  81     UpdateTextCtrlFromPicker();
  82
  83     return true;
  84 }
  85
  86 void wxColourPickerCtrl::UpdatePickerFromTextCtrl()
  87 {
  88     wxASSERT(m_text);
  89
  90     if (m_bIgnoreNextTextCtrlUpdate)
  91     {
  92         // ignore this update
  93         m_bIgnoreNextTextCtrlUpdate = false;
  94         return;
  95     }
  96
  97     // wxString -> wxColour conversion
  98     wxColour col(m_text->GetValue());
  99     if ( !col.Ok() )
 100         return;     // invalid user input
 101
 102     if (M_PICKER->GetColour() != col)
 103     {
 104         M_PICKER->SetColour(col);
 105
 106         // fire an event
 107         wxColourPickerEvent event(this, GetId(), col);
 108         GetEventHandler()->ProcessEvent(event);
 109     }
 110 }
 111
 112 void wxColourPickerCtrl::UpdateTextCtrlFromPicker()
 113 {
 114     if (!m_text)
 115         return;     // no textctrl to update
 116
 117     // NOTE: this SetValue() will generate an unwanted wxEVT_COMMAND_TEXT_UPDATED
 118     //       which will trigger a unneeded UpdateFromTextCtrl(); thus before using
 119     //       SetValue() we set the m_bIgnoreNextTextCtrlUpdate flag...
 120     m_bIgnoreNextTextCtrlUpdate = true;
 121     m_text->SetValue(M_PICKER->GetColour().GetAsString());
 122 }
 123
 124
 125
 126 // ----------------------------------------------------------------------------
 127 // wxColourPickerCtrl - event handlers
 128 // ----------------------------------------------------------------------------
 129
 130 void wxColourPickerCtrl::OnColourChange(wxColourPickerEvent &ev)
 131 {
 132     UpdateTextCtrlFromPicker();
 133
 134     // the wxColourPickerWidget sent us a colour-change notification.
 135     // forward this event to our parent
 136     wxColourPickerEvent event(this, GetId(), ev.GetColour());
 137     GetEventHandler()->ProcessEvent(event);
 138 }
 139
 140 #endif  // wxUSE_COLOURPICKERCTRL