src/common/colourdata.cpp

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