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,
  63                                         wxDefaultPosition, wxDefaultSize,
  64                                         GetPickerStyle(style));
  65
  66     // complete sizer creation
  67     wxPickerBase::PostCreation();
  68
  69     m_picker->Connect(wxEVT_COMMAND_COLOURPICKER_CHANGED,
  70             wxColourPickerEventHandler(wxColourPickerCtrl::OnColourChange),
  71             NULL, this);
  72
  73     return true;
  74 }
  75
  76 void wxColourPickerCtrl::SetColour(const wxColour &col)
  77 {
  78     M_PICKER->SetColour(col);
  79     UpdateTextCtrlFromPicker();
  80 }
  81
  82 bool wxColourPickerCtrl::SetColour(const wxString &text)
  83 {
  84     wxColour col(text);     // smart wxString->wxColour conversion
  85     if ( !col.Ok() )
  86         return false;
  87     M_PICKER->SetColour(col);
  88     UpdateTextCtrlFromPicker();
  89
  90     return true;
  91 }
  92
  93 void wxColourPickerCtrl::UpdatePickerFromTextCtrl()
  94 {
  95     wxASSERT(m_text);
  96
  97     if (m_bIgnoreNextTextCtrlUpdate)
  98     {
  99         // ignore this update
 100         m_bIgnoreNextTextCtrlUpdate = false;
 101         return;
 102     }
 103
 104     // wxString -> wxColour conversion
 105     wxColour col(m_text->GetValue());
 106     if ( !col.Ok() )
 107         return;     // invalid user input
 108
 109     if (M_PICKER->GetColour() != col)
 110     {
 111         M_PICKER->SetColour(col);
 112
 113         // fire an event
 114         wxColourPickerEvent event(this, GetId(), col);
 115         GetEventHandler()->ProcessEvent(event);
 116     }
 117 }
 118
 119 void wxColourPickerCtrl::UpdateTextCtrlFromPicker()
 120 {
 121     if (!m_text)
 122         return;     // no textctrl to update
 123
 124     // NOTE: this SetValue() will generate an unwanted wxEVT_COMMAND_TEXT_UPDATED
 125     //       which will trigger a unneeded UpdateFromTextCtrl(); thus before using
 126     //       SetValue() we set the m_bIgnoreNextTextCtrlUpdate flag...
 127     m_bIgnoreNextTextCtrlUpdate = true;
 128     m_text->SetValue(M_PICKER->GetColour().GetAsString());
 129 }
 130
 131
 132
 133 // ----------------------------------------------------------------------------
 134 // wxColourPickerCtrl - event handlers
 135 // ----------------------------------------------------------------------------
 136
 137 void wxColourPickerCtrl::OnColourChange(wxColourPickerEvent &ev)
 138 {
 139     UpdateTextCtrlFromPicker();
 140
 141     // the wxColourPickerWidget sent us a colour-change notification.
 142     // forward this event to our parent
 143     wxColourPickerEvent event(this, GetId(), ev.GetColour());
 144     GetEventHandler()->ProcessEvent(event);
 145 }
 146
 147 #endif  // wxUSE_COLOURPICKERCTRL