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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "colordlg.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20     #pragma hdrstop
  21 #endif
  22
  23 #if wxUSE_COLOURDLG && defined(__WXGTK20__)
  24
  25 #include "wx/colordlg.h"
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/intl.h"
  29 #endif
  30
  31 #include "wx/gtk/private.h"
  32
  33 IMPLEMENT_DYNAMIC_CLASS(wxColourDialog, wxDialog)
  34
  35 wxColourDialog::wxColourDialog(wxWindow *parent, wxColourData *data)
  36 {
  37     Create(parent, data);
  38 }
  39
  40 bool wxColourDialog::Create(wxWindow *parent, wxColourData *data)
  41 {
  42     if (data)
  43         m_data = *data;
  44
  45     wxString title(_("Choose colour"));
  46     m_widget = gtk_color_selection_dialog_new(wxGTK_CONV(title));
  47
  48     if (parent)
  49         gtk_window_set_transient_for(GTK_WINDOW(m_widget),
  50                                      GTK_WINDOW(parent->m_widget));
  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     gchar *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, NULL);
 112
 113     g_free(pal);
 114 }
 115
 116 void wxColourDialog::DialogToColourData()
 117 {
 118     GtkColorSelection *sel =
 119         GTK_COLOR_SELECTION(GTK_COLOR_SELECTION_DIALOG(m_widget)->colorsel);
 120
 121     GdkColor clr;
 122     gtk_color_selection_get_current_color(sel, &clr);
 123     m_data.SetColour(wxColour(clr.red >> 8, clr.green >> 8, clr.blue >> 8));
 124
 125     // Extract custom palette:
 126
 127     GtkSettings *settings = gtk_widget_get_settings(GTK_WIDGET(sel));
 128     gchar *pal;
 129     g_object_get(settings, "gtk-color-palette", &pal, NULL);
 130
 131     GdkColor *colors;
 132     gint n_colors;
 133     if (gtk_color_selection_palette_from_string(pal, &colors, &n_colors))
 134     {
 135         for (int i = 0; i < wxMin(n_colors, 16); i++)
 136         {
 137             m_data.SetCustomColour(i, wxColour(colors[i].red >> 8,
 138                                                colors[i].green >> 8,
 139                                                colors[i].blue >> 8));
 140         }
 141         g_free(colors);
 142     }
 143
 144     g_free(pal);
 145 }
 146
 147 #endif // wxUSE_COLOURDLG && defined(__WXGTK20__)
 148