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: colordlg.cpp 38245 2006-03-21 13:33:08Z VZ $
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
29IMPLEMENT_DYNAMIC_CLASS(wxColourDialog, wxDialog)
30
31wxColourDialog::wxColourDialog(wxWindow *parent, wxColourData *data)
32{
33    Create(parent, data);
34}
35
36bool 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
58int 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
82void 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
113void 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
146