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     {
  46         GtkWindow* gtk_parent = GTK_WINDOW( gtk_widget_get_toplevel(parent->m_widget) );
  47         gtk_window_set_transient_for(GTK_WINDOW(m_widget),
  48                                      gtk_parent);
  49     }
  50
  51     GtkColorSelection *sel =
  52         GTK_COLOR_SELECTION(GTK_COLOR_SELECTION_DIALOG(m_widget)->colorsel);
  53     gtk_color_selection_set_has_palette(sel, true);
  54
  55     return true;
  56 }
  57
  58 int wxColourDialog::ShowModal()
  59 {
  60     ColourDataToDialog();
  61
  62     gint result = gtk_dialog_run(GTK_DIALOG(m_widget));
  63     gtk_widget_hide(m_widget);
  64
  65     switch (result)
  66     {
  67         default:
  68             wxFAIL_MSG(_T("unexpected GtkColorSelectionDialog return code"));
  69             // fall through
  70
  71         case GTK_RESPONSE_CANCEL:
  72         case GTK_RESPONSE_DELETE_EVENT:
  73         case GTK_RESPONSE_CLOSE:
  74             return wxID_CANCEL;
  75
  76         case GTK_RESPONSE_OK:
  77             DialogToColourData();
  78             return wxID_OK;
  79     }
  80 }
  81
  82 void wxColourDialog::ColourDataToDialog()
  83 {
  84     GtkColorSelection *sel =
  85         GTK_COLOR_SELECTION(GTK_COLOR_SELECTION_DIALOG(m_widget)->colorsel);
  86
  87     if (m_data.GetColour().Ok())
  88     {
  89         gtk_color_selection_set_current_color(sel,
  90                                               m_data.GetColour().GetColor());
  91     }
  92
  93     // setup the palette:
  94
  95     GdkColor colors[16];
  96     gint n_colors = 0;
  97     for (unsigned i = 0; i < 16; i++)
  98     {
  99         wxColour c = m_data.GetCustomColour(i);
 100         if (c.Ok())
 101         {
 102             colors[n_colors] = *c.GetColor();
 103             n_colors++;
 104         }
 105     }
 106
 107     wxGtkString pal(gtk_color_selection_palette_to_string(colors, n_colors));
 108
 109     GtkSettings *settings = gtk_widget_get_settings(GTK_WIDGET(sel));
 110     g_object_set(settings, "gtk-color-palette", pal.c_str(), NULL);
 111 }
 112
 113 void wxColourDialog::DialogToColourData()
 114 {
 115     GtkColorSelection *sel =
 116         GTK_COLOR_SELECTION(GTK_COLOR_SELECTION_DIALOG(m_widget)->colorsel);
 117
 118     GdkColor clr;
 119     gtk_color_selection_get_current_color(sel, &clr);
 120     m_data.SetColour(wxColour(clr.red >> 8, clr.green >> 8, clr.blue >> 8));
 121
 122     // Extract custom palette:
 123
 124     GtkSettings *settings = gtk_widget_get_settings(GTK_WIDGET(sel));
 125     gchar *pal;
 126     g_object_get(settings, "gtk-color-palette", &pal, NULL);
 127
 128     GdkColor *colors;
 129     gint n_colors;
 130     if (gtk_color_selection_palette_from_string(pal, &colors, &n_colors))
 131     {
 132         for (int i = 0; i < wxMin(n_colors, 16); i++)
 133         {
 134             m_data.SetCustomColour(i, wxColour(colors[i].red >> 8,
 135                                                colors[i].green >> 8,
 136                                                colors[i].blue >> 8));
 137         }
 138         g_free(colors);
 139     }
 140
 141     g_free(pal);
 142 }
 143
 144 #endif // wxUSE_COLOURDLG && defined(__WXGTK20__)
 145