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