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 #ifndef WX_PRECOMP
  32     #include "wx/textctrl.h"
  33 #endif
  34
  35
  36 // ============================================================================
  37 // implementation
  38 // ============================================================================
  39
  40 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COLOURPICKER_CHANGED)
  41 IMPLEMENT_DYNAMIC_CLASS(wxColourPickerCtrl, wxPickerBase)
  42 IMPLEMENT_DYNAMIC_CLASS(wxColourPickerEvent, wxEvent)
  43
  44 // ----------------------------------------------------------------------------
  45 // wxColourPickerCtrl
  46 // ----------------------------------------------------------------------------
  47
  48 #define M_PICKER     ((wxColourPickerWidget*)m_picker)
  49
  50 bool wxColourPickerCtrl::Create( wxWindow *parent, wxWindowID id,
  51                         const wxColour &col,
  52                         const wxPoint &pos, const wxSize &size,
  53                         long style, const wxValidator& validator,
  54                         const wxString &name )
  55 {
  56     if (!wxPickerBase::CreateBase(parent, id, col.GetAsString(), pos, size,
  57                                   style, validator, name))
  58         return false;
  59
  60     // we are not interested to the ID of our picker as we connect
  61     // to its "changed" event dynamically...
  62     m_picker = new wxColourPickerWidget(this, wxID_ANY, col, wxPoint(40,0), wxSize(30,-1),
  63                                         GetPickerStyle(style));
  64     m_picker->Connect(wxEVT_COMMAND_COLOURPICKER_CHANGED,
  65             wxColourPickerEventHandler(wxColourPickerCtrl::OnColourChange),
  66             NULL, this);
  67
  68     return true;
  69 }
  70
  71 void wxColourPickerCtrl::SetColour(const wxColour &col)
  72 {
  73     M_PICKER->SetColour(col);
  74     UpdateTextCtrlFromPicker();
  75 }
  76
  77 bool wxColourPickerCtrl::SetColour(const wxString &text)
  78 {
  79     wxColour col(text);     // smart wxString->wxColour conversion
  80     if ( !col.Ok() )
  81         return false;
  82     M_PICKER->SetColour(col);
  83     UpdateTextCtrlFromPicker();
  84
  85     return true;
  86 }
  87
  88 void wxColourPickerCtrl::UpdatePickerFromTextCtrl()
  89 {
  90     wxASSERT(m_text);
  91
  92     if (m_bIgnoreNextTextCtrlUpdate)
  93     {
  94         // ignore this update
  95         m_bIgnoreNextTextCtrlUpdate = false;
  96         return;
  97     }
  98
  99     // wxString -> wxColour conversion
 100     wxColour col(m_text->GetValue());
 101     if ( !col.Ok() )
 102         return;     // invalid user input
 103
 104     if (M_PICKER->GetColour() != col)
 105     {
 106         M_PICKER->SetColour(col);
 107
 108         // fire an event
 109         wxColourPickerEvent event(this, GetId(), col);
 110         GetEventHandler()->ProcessEvent(event);
 111     }
 112 }
 113
 114 void wxColourPickerCtrl::UpdateTextCtrlFromPicker()
 115 {
 116     if (!m_text)
 117         return;     // no textctrl to update
 118
 119     // NOTE: this SetValue() will generate an unwanted wxEVT_COMMAND_TEXT_UPDATED
 120     //       which will trigger a unneeded UpdateFromTextCtrl(); thus before using
 121     //       SetValue() we set the m_bIgnoreNextTextCtrlUpdate flag...
 122     m_bIgnoreNextTextCtrlUpdate = true;
 123     m_text->SetValue(M_PICKER->GetColour().GetAsString());
 124 }
 125
 126
 127
 128 // ----------------------------------------------------------------------------
 129 // wxColourPickerCtrl - event handlers
 130 // ----------------------------------------------------------------------------
 131
 132 void wxColourPickerCtrl::OnColourChange(wxColourPickerEvent &ev)
 133 {
 134     UpdateTextCtrlFromPicker();
 135
 136     // the wxColourPickerWidget sent us a colour-change notification.
 137     // forward this event to our parent
 138     wxColourPickerEvent event(this, GetId(), ev.GetColour());
 139     GetEventHandler()->ProcessEvent(event);
 140 }
 141
 142 #endif  // wxUSE_COLOURPICKERCTRL