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 const wxChar wxColourPickerCtrlNameStr[] = wxT("colourpicker");
  36 const wxChar wxColourPickerWidgetNameStr[] = wxT("colourpickerwidget");
  37
  38 // ============================================================================
  39 // implementation
  40 // ============================================================================
  41
  42 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COLOURPICKER_CHANGED)
  43 IMPLEMENT_DYNAMIC_CLASS(wxColourPickerCtrl, wxPickerBase)
  44 IMPLEMENT_DYNAMIC_CLASS(wxColourPickerEvent, wxEvent)
  45
  46 // ----------------------------------------------------------------------------
  47 // wxColourPickerCtrl
  48 // ----------------------------------------------------------------------------
  49
  50 #define M_PICKER     ((wxColourPickerWidget*)m_picker)
  51
  52 bool wxColourPickerCtrl::Create( wxWindow *parent, wxWindowID id,
  53                         const wxColour &col,
  54                         const wxPoint &pos, const wxSize &size,
  55                         long style, const wxValidator& validator,
  56                         const wxString &name )
  57 {
  58     if (!wxPickerBase::CreateBase(parent, id, col.GetAsString(), pos, size,
  59                                   style, validator, name))
  60         return false;
  61
  62     // we are not interested to the ID of our picker as we connect
  63     // to its "changed" event dynamically...
  64     m_picker = new wxColourPickerWidget(this, wxID_ANY, col,
  65                                         wxDefaultPosition, wxDefaultSize,
  66                                         GetPickerStyle(style));
  67
  68     // complete sizer creation
  69     wxPickerBase::PostCreation();
  70
  71     m_picker->Connect(wxEVT_COMMAND_COLOURPICKER_CHANGED,
  72             wxColourPickerEventHandler(wxColourPickerCtrl::OnColourChange),
  73             NULL, this);
  74
  75     return true;
  76 }
  77
  78 void wxColourPickerCtrl::SetColour(const wxColour &col)
  79 {
  80     M_PICKER->SetColour(col);
  81     UpdateTextCtrlFromPicker();
  82 }
  83
  84 bool wxColourPickerCtrl::SetColour(const wxString &text)
  85 {
  86     wxColour col(text);     // smart wxString->wxColour conversion
  87     if ( !col.Ok() )
  88         return false;
  89     M_PICKER->SetColour(col);
  90     UpdateTextCtrlFromPicker();
  91
  92     return true;
  93 }
  94
  95 void wxColourPickerCtrl::UpdatePickerFromTextCtrl()
  96 {
  97     wxASSERT(m_text);
  98
  99     if (m_bIgnoreNextTextCtrlUpdate)
 100     {
 101         // ignore this update
 102         m_bIgnoreNextTextCtrlUpdate = false;
 103         return;
 104     }
 105
 106     // wxString -> wxColour conversion
 107     wxColour col(m_text->GetValue());
 108     if ( !col.Ok() )
 109         return;     // invalid user input
 110
 111     if (M_PICKER->GetColour() != col)
 112     {
 113         M_PICKER->SetColour(col);
 114
 115         // fire an event
 116         wxColourPickerEvent event(this, GetId(), col);
 117         GetEventHandler()->ProcessEvent(event);
 118     }
 119 }
 120
 121 void wxColourPickerCtrl::UpdateTextCtrlFromPicker()
 122 {
 123     if (!m_text)
 124         return;     // no textctrl to update
 125
 126     // NOTE: this SetValue() will generate an unwanted wxEVT_COMMAND_TEXT_UPDATED
 127     //       which will trigger a unneeded UpdateFromTextCtrl(); thus before using
 128     //       SetValue() we set the m_bIgnoreNextTextCtrlUpdate flag...
 129     m_bIgnoreNextTextCtrlUpdate = true;
 130     m_text->SetValue(M_PICKER->GetColour().GetAsString());
 131 }
 132
 133
 134
 135 // ----------------------------------------------------------------------------
 136 // wxColourPickerCtrl - event handlers
 137 // ----------------------------------------------------------------------------
 138
 139 void wxColourPickerCtrl::OnColourChange(wxColourPickerEvent &ev)
 140 {
 141     UpdateTextCtrlFromPicker();
 142
 143     // the wxColourPickerWidget sent us a colour-change notification.
 144     // forward this event to our parent
 145     wxColourPickerEvent event(this, GetId(), ev.GetColour());
 146     GetEventHandler()->ProcessEvent(event);
 147 }
 148
 149 #endif  // wxUSE_COLOURPICKERCTRL