src/common/colourdata.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/colourdata.cpp
   3 // Author:      Julian Smart
   4 // RCS-ID:      $Id$
   5 // Copyright:   (c) Julian Smart
   6 // Licence:     wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 #include "wx/wxprec.h"
  10
  11 #ifdef __BORLANDC__
  12     #pragma hdrstop
  13 #endif
  14
  15 #if wxUSE_COLOURDLG || wxUSE_COLOURPICKERCTRL
  16
  17 #include "wx/colourdata.h"
  18 #include "wx/tokenzr.h"
  19
  20 // ----------------------------------------------------------------------------
  21 // wxColourData
  22 // ----------------------------------------------------------------------------
  23
  24 IMPLEMENT_DYNAMIC_CLASS(wxColourData, wxObject)
  25
  26 wxColourData::wxColourData()
  27 {
  28     m_chooseFull = false;
  29     m_dataColour.Set(0,0,0);
  30     // m_custColours are wxNullColours initially
  31 }
  32
  33 wxColourData::wxColourData(const wxColourData& data)
  34             : wxObject()
  35 {
  36     (*this) = data;
  37 }
  38
  39 wxColourData::~wxColourData()
  40 {
  41 }
  42
  43 void wxColourData::SetCustomColour(int i, const wxColour& colour)
  44 {
  45     wxCHECK_RET( i >= 0 && i < NUM_CUSTOM, wxT("custom colour index out of range") );
  46
  47     m_custColours[i] = colour;
  48 }
  49
  50 wxColour wxColourData::GetCustomColour(int i) const
  51 {
  52     wxCHECK_MSG( i >= 0 && i < NUM_CUSTOM, wxColour(0,0,0),
  53                  wxT("custom colour index out of range") );
  54
  55     return m_custColours[i];
  56 }
  57
  58 wxColourData& wxColourData::operator=(const wxColourData& data)
  59 {
  60     for ( int i = 0; i < NUM_CUSTOM; i++)
  61         m_custColours[i] = data.m_custColours[i];
  62
  63     m_dataColour = data.m_dataColour;
  64     m_chooseFull = data.m_chooseFull;
  65
  66     return *this;
  67 }
  68
  69 // ----------------------------------------------------------------------------
  70 // [de]serialization
  71 // ----------------------------------------------------------------------------
  72
  73 // separator used between different fields
  74 static const char wxCOL_DATA_SEP = ',';
  75
  76 wxString wxColourData::ToString() const
  77 {
  78     wxString str(m_chooseFull ? '1' : '0');
  79
  80     for ( int i = 0; i < NUM_CUSTOM; i++ )
  81     {
  82         str += wxCOL_DATA_SEP;
  83
  84         const wxColour& clr = m_custColours[i];
  85         if ( clr.IsOk() )
  86             str += clr.GetAsString(wxC2S_HTML_SYNTAX);
  87     }
  88
  89     return str;
  90 }
  91
  92 bool wxColourData::FromString(const wxString& str)
  93 {
  94     wxStringTokenizer tokenizer(str, wxCOL_DATA_SEP);
  95     wxString token = tokenizer.GetNextToken();
  96     m_chooseFull = token == '1';
  97     bool success = m_chooseFull || token == '0';
  98     for (int i = 0; success && i < NUM_CUSTOM; i++)
  99     {
 100         token = tokenizer.GetNextToken();
 101         if (token.empty())
 102             m_custColours[i] = wxColour();
 103         else
 104             success = m_custColours[i].Set(token);
 105     }
 106     return success;
 107 }
 108
 109 #if wxUSE_COLOURDLG
 110
 111 #include "wx/colordlg.h"
 112
 113 wxColour wxGetColourFromUser(wxWindow *parent,
 114                              const wxColour& colInit,
 115                              const wxString& caption,
 116                              wxColourData *ptrData)
 117 {
 118     // contains serialized representation of wxColourData used the last time
 119     // the dialog was shown: we want to reuse it the next time in order to show
 120     // the same custom colours to the user (and we can't just have static
 121     // wxColourData itself because it's a GUI object and so should be destroyed
 122     // before GUI shutdown and doing it during static cleanup is too late)
 123     static wxString s_strColourData;
 124
 125     wxColourData data;
 126     if ( !ptrData )
 127     {
 128         ptrData = &data;
 129         if ( !s_strColourData.empty() )
 130         {
 131             if ( !data.FromString(s_strColourData) )
 132             {
 133                 wxFAIL_MSG( "bug in wxColourData::FromString()?" );
 134             }
 135
 136 #ifdef __WXMSW__
 137             // we don't get back the "choose full" flag value from the native
 138             // dialog and so we can't preserve it between runs, so we decide to
 139             // always use it as it seems better than not using it (user can
 140             // just ignore the extra controls in the dialog but having to click
 141             // a button each time to show them would be very annoying
 142             data.SetChooseFull(true);
 143 #endif // __WXMSW__
 144         }
 145     }
 146
 147     if ( colInit.IsOk() )
 148     {
 149         ptrData->SetColour(colInit);
 150     }
 151
 152     wxColour colRet;
 153     wxColourDialog dialog(parent, ptrData);
 154     if (!caption.empty())
 155         dialog.SetTitle(caption);
 156     if ( dialog.ShowModal() == wxID_OK )
 157     {
 158         *ptrData = dialog.GetColourData();
 159         colRet = ptrData->GetColour();
 160         s_strColourData = ptrData->ToString();
 161     }
 162     //else: leave colRet invalid
 163
 164     return colRet;
 165 }
 166
 167 #endif // wxUSE_COLOURDLG
 168 #endif // wxUSE_COLOURDLG || wxUSE_COLOURPICKERCTRL