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