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