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 // Copyright:   (c) Vadim Zeitlin, Francesco Montorsi
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 // For compilers that support precompilation, includes "wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #if wxUSE_COLOURPICKERCTRL
  27
  28 #include "wx/clrpicker.h"
  29
  30 #ifndef WX_PRECOMP
  31     #include "wx/textctrl.h"
  32 #endif
  33
  34 const char wxColourPickerCtrlNameStr[] = "colourpicker";
  35 const char wxColourPickerWidgetNameStr[] = "colourpickerwidget";
  36
  37 // ============================================================================
  38 // implementation
  39 // ============================================================================
  40
  41 wxDEFINE_EVENT(wxEVT_COLOURPICKER_CHANGED, wxColourPickerEvent);
  42 IMPLEMENT_DYNAMIC_CLASS(wxColourPickerCtrl, wxPickerBase)
  43 IMPLEMENT_DYNAMIC_CLASS(wxColourPickerEvent, wxEvent)
  44
  45 // ----------------------------------------------------------------------------
  46 // wxColourPickerCtrl
  47 // ----------------------------------------------------------------------------
  48
  49 #define M_PICKER     ((wxColourPickerWidget*)m_picker)
  50
  51 bool wxColourPickerCtrl::Create( wxWindow *parent, wxWindowID id,
  52                         const wxColour &col,
  53                         const wxPoint &pos, const wxSize &size,
  54                         long style, const wxValidator& validator,
  55                         const wxString &name )
  56 {
  57     if (!wxPickerBase::CreateBase(parent, id, col.GetAsString(), pos, size,
  58                                   style, validator, name))
  59         return false;
  60
  61     // we are not interested to the ID of our picker as we connect
  62     // to its "changed" event dynamically...
  63     m_picker = new wxColourPickerWidget(this, wxID_ANY, col,
  64                                         wxDefaultPosition, wxDefaultSize,
  65                                         GetPickerStyle(style));
  66
  67     // complete sizer creation
  68     wxPickerBase::PostCreation();
  69
  70     m_picker->Connect(wxEVT_COLOURPICKER_CHANGED,
  71             wxColourPickerEventHandler(wxColourPickerCtrl::OnColourChange),
  72             NULL, this);
  73
  74     return true;
  75 }
  76
  77 void wxColourPickerCtrl::SetColour(const wxColour &col)
  78 {
  79     M_PICKER->SetColour(col);
  80     UpdateTextCtrlFromPicker();
  81 }
  82
  83 bool wxColourPickerCtrl::SetColour(const wxString &text)
  84 {
  85     wxColour col(text);     // smart wxString->wxColour conversion
  86     if ( !col.IsOk() )
  87         return false;
  88     M_PICKER->SetColour(col);
  89     UpdateTextCtrlFromPicker();
  90
  91     return true;
  92 }
  93
  94 void wxColourPickerCtrl::UpdatePickerFromTextCtrl()
  95 {
  96     wxASSERT(m_text);
  97
  98     // wxString -> wxColour conversion
  99     wxColour col(m_text->GetValue());
 100     if ( !col.IsOk() )
 101         return;     // invalid user input
 102
 103     if (M_PICKER->GetColour() != col)
 104     {
 105         M_PICKER->SetColour(col);
 106
 107         // fire an event
 108         wxColourPickerEvent event(this, GetId(), col);
 109         GetEventHandler()->ProcessEvent(event);
 110     }
 111 }
 112
 113 void wxColourPickerCtrl::UpdateTextCtrlFromPicker()
 114 {
 115     if (!m_text)
 116         return;     // no textctrl to update
 117
 118     // Take care to use ChangeValue() here and not SetValue() to avoid
 119     // infinite recursion.
 120     m_text->ChangeValue(M_PICKER->GetColour().GetAsString());
 121 }
 122
 123
 124
 125 // ----------------------------------------------------------------------------
 126 // wxColourPickerCtrl - event handlers
 127 // ----------------------------------------------------------------------------
 128
 129 void wxColourPickerCtrl::OnColourChange(wxColourPickerEvent &ev)
 130 {
 131     UpdateTextCtrlFromPicker();
 132
 133     // the wxColourPickerWidget sent us a colour-change notification.
 134     // forward this event to our parent
 135     wxColourPickerEvent event(this, GetId(), ev.GetColour());
 136     GetEventHandler()->ProcessEvent(event);
 137 }
 138
 139 #endif  // wxUSE_COLOURPICKERCTRL