src/gtk/colordlg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        gtk/colordlg.cpp
   3 // Purpose:     Native wxColourDialog for GTK+
   4 // Author:      Vaclav Slavik
   5 // Modified by:
   6 // Created:     2004/06/04
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vaclav Slavik, 2004
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #if wxUSE_COLOURDLG && defined(__WXGTK20__)
  20
  21 #include "wx/colordlg.h"
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/intl.h"
  25 #endif
  26
  27 #include "wx/gtk/private.h"
  28
  29 IMPLEMENT_DYNAMIC_CLASS(wxColourDialog, wxDialog)
  30
  31 wxColourDialog::wxColourDialog(wxWindow *parent, wxColourData *data)
  32 {
  33     Create(parent, data);
  34 }
  35
  36 bool wxColourDialog::Create(wxWindow *parent, wxColourData *data)
  37 {
  38     if (data)
  39         m_data = *data;
  40
  41     wxString title(_("Choose colour"));
  42     m_widget = gtk_color_selection_dialog_new(wxGTK_CONV(title));
  43
  44     if (parent)
  45         gtk_window_set_transient_for(GTK_WINDOW(m_widget),
  46                                      GTK_WINDOW(parent->m_widget));
  47
  48     GtkColorSelection *sel =
  49         GTK_COLOR_SELECTION(GTK_COLOR_SELECTION_DIALOG(m_widget)->colorsel);
  50     gtk_color_selection_set_has_palette(sel, true);
  51
  52     return true;
  53 }
  54
  55 int wxColourDialog::ShowModal()
  56 {
  57     ColourDataToDialog();
  58
  59     gint result = gtk_dialog_run(GTK_DIALOG(m_widget));
  60     gtk_widget_hide(m_widget);
  61
  62     switch (result)
  63     {
  64         default:
  65             wxFAIL_MSG(_T("unexpected GtkColorSelectionDialog return code"));
  66             // fall through
  67
  68         case GTK_RESPONSE_CANCEL:
  69         case GTK_RESPONSE_DELETE_EVENT:
  70         case GTK_RESPONSE_CLOSE:
  71             return wxID_CANCEL;
  72
  73         case GTK_RESPONSE_OK:
  74             DialogToColourData();
  75             return wxID_OK;
  76     }
  77 }
  78
  79 void wxColourDialog::ColourDataToDialog()
  80 {
  81     GtkColorSelection *sel =
  82         GTK_COLOR_SELECTION(GTK_COLOR_SELECTION_DIALOG(m_widget)->colorsel);
  83
  84     if (m_data.GetColour().Ok())
  85     {
  86         gtk_color_selection_set_current_color(sel,
  87                                               m_data.GetColour().GetColor());
  88     }
  89
  90     // setup the palette:
  91
  92     GdkColor colors[16];
  93     gint n_colors = 0;
  94     for (unsigned i = 0; i < 16; i++)
  95     {
  96         wxColour c = m_data.GetCustomColour(i);
  97         if (c.Ok())
  98         {
  99             colors[n_colors] = *c.GetColor();
 100             n_colors++;
 101         }
 102     }
 103
 104     gchar *pal = gtk_color_selection_palette_to_string(colors, n_colors);
 105
 106     GtkSettings *settings = gtk_widget_get_settings(GTK_WIDGET(sel));
 107     g_object_set(settings, "gtk-color-palette", pal, NULL);
 108
 109     g_free(pal);
 110 }
 111
 112 void wxColourDialog::DialogToColourData()
 113 {
 114     GtkColorSelection *sel =
 115         GTK_COLOR_SELECTION(GTK_COLOR_SELECTION_DIALOG(m_widget)->colorsel);
 116
 117     GdkColor clr;
 118     gtk_color_selection_get_current_color(sel, &clr);
 119     m_data.SetColour(wxColour(clr.red >> 8, clr.green >> 8, clr.blue >> 8));
 120
 121     // Extract custom palette:
 122
 123     GtkSettings *settings = gtk_widget_get_settings(GTK_WIDGET(sel));
 124     gchar *pal;
 125     g_object_get(settings, "gtk-color-palette", &pal, NULL);
 126
 127     GdkColor *colors;
 128     gint n_colors;
 129     if (gtk_color_selection_palette_from_string(pal, &colors, &n_colors))
 130     {
 131         for (int i = 0; i < wxMin(n_colors, 16); i++)
 132         {
 133             m_data.SetCustomColour(i, wxColour(colors[i].red >> 8,
 134                                                colors[i].green >> 8,
 135                                                colors[i].blue >> 8));
 136         }
 137         g_free(colors);
 138     }
 139
 140     g_free(pal);
 141 }
 142
 143 #endif // wxUSE_COLOURDLG && defined(__WXGTK20__)
 144