src/gtk/settings.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        gtk/settings.cpp
// Purpose:
// Author:      Robert Roebling
// Modified by: Mart Raudsepp (GetMetric)
// Id:          $Id$
// Copyright:   (c) 1998 Robert Roebling
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#include "wx/settings.h"
#include "wx/debug.h"
#include "wx/cmndata.h"
#include "wx/fontutil.h"
#include "wx/toplevel.h"

// Using gtk_list_new, which is deprecated since GTK2
// Using gtk_object_sink, which is deprecated since GTK+-2.9.0
#ifdef GTK_DISABLE_DEPRECATED
#undef GTK_DISABLE_DEPRECATED
#endif

#include <gdk/gdk.h>
#include <gdk/gdkx.h>
#include <gdk/gdkprivate.h>
#include <gtk/gtk.h>

#include <X11/Xatom.h>

#define SHIFT (8*(sizeof(short int)-sizeof(char)))

// ----------------------------------------------------------------------------
// wxSystemObjects
// ----------------------------------------------------------------------------

struct wxSystemObjects
{
    wxColour m_colBtnFace,
             m_colBtnShadow,
             m_colBtnHighlight,
             m_colHighlight,
             m_colHighlightText,
             m_colListBox,
             m_colBtnText,
             m_colMenuItemHighlight,
             m_colTooltip,
             m_colTooltipText;

    wxFont m_fontSystem;
};

static wxSystemObjects gs_objects;

// ----------------------------------------------------------------------------
// wxSystemSettings implementation
// ----------------------------------------------------------------------------

// kind of widget to use in GetColourFromGTKWidget
enum wxGtkWidgetType
{
    wxGTK_BUTTON,
    wxGTK_LIST,
    wxGTK_MENUITEM
};

// the colour we need
enum wxGtkColourType
{
    wxGTK_FG,
    wxGTK_BG,
    wxGTK_BASE
};

// wxSystemSettings::GetColour() helper: get the colours from a GTK+
// widget style, return true if we did get them, false to use defaults
static bool GetColourFromGTKWidget(int& red, int& green, int& blue,
                                   wxGtkWidgetType type = wxGTK_BUTTON,
                                   GtkStateType state = GTK_STATE_NORMAL,
                                   wxGtkColourType colour = wxGTK_BG)
{
    GtkWidget *widget;
    switch ( type )
    {
        default:
            wxFAIL_MSG( _T("unexpected GTK widget type") );
            // fall through

        case wxGTK_BUTTON:
            widget = gtk_button_new();
            break;

        case wxGTK_LIST:
            widget = gtk_list_new();
            break;

        case wxGTK_MENUITEM:
            widget = gtk_menu_item_new();
    }

    GtkStyle *def = gtk_rc_get_style( widget );
    if ( !def )
        def = gtk_widget_get_default_style();

    bool ok;
    if ( def )
    {
        GdkColor *col;
        switch ( colour )
        {
            default:
                wxFAIL_MSG( _T("unexpected GTK colour type") );
                // fall through

            case wxGTK_FG:
                col = def->fg;
                break;

            case wxGTK_BG:
                col = def->bg;
                break;

            case wxGTK_BASE:
                col = def->base;
                break;
        }

        red = col[state].red;
        green = col[state].green;
        blue = col[state].blue;

        ok = TRUE;
    }
    else
    {
        ok = FALSE;
    }

    gtk_widget_destroy( widget );

    return ok;
}

static void GetTooltipColors()
{
    GtkTooltips* tooltips = gtk_tooltips_new();
    gtk_tooltips_force_window(tooltips);
    gtk_widget_ensure_style(tooltips->tip_window);
    GdkColor c = tooltips->tip_window->style->bg[GTK_STATE_NORMAL];
    gs_objects.m_colTooltip = wxColor(c.red >> SHIFT, c.green >> SHIFT, c.blue >> SHIFT);
    c = tooltips->tip_window->style->fg[GTK_STATE_NORMAL];
    gs_objects.m_colTooltipText = wxColor(c.red >> SHIFT, c.green >> SHIFT, c.blue >> SHIFT);
    gtk_object_sink(wx_reinterpret_cast(GtkObject*, tooltips));
}

wxColour wxSystemSettingsNative::GetColour( wxSystemColour index )
{
    switch (index)
    {
        case wxSYS_COLOUR_SCROLLBAR:
        case wxSYS_COLOUR_BACKGROUND:
        case wxSYS_COLOUR_INACTIVECAPTION:
        case wxSYS_COLOUR_MENU:
        case wxSYS_COLOUR_WINDOWFRAME:
        case wxSYS_COLOUR_ACTIVEBORDER:
        case wxSYS_COLOUR_INACTIVEBORDER:
        case wxSYS_COLOUR_BTNFACE:
        case wxSYS_COLOUR_MENUBAR:
        case wxSYS_COLOUR_3DLIGHT:
            if (!gs_objects.m_colBtnFace.Ok())
            {
                int red, green, blue;
                if ( !GetColourFromGTKWidget(red, green, blue) )
                {
                    red =
                    green = 0;
                    blue = 0x9c40;
                }

                gs_objects.m_colBtnFace = wxColour( red   >> SHIFT,
                                                   green >> SHIFT,
                                                   blue  >> SHIFT );
            }
            return gs_objects.m_colBtnFace;

        case wxSYS_COLOUR_WINDOW:
            return *wxWHITE;

        case wxSYS_COLOUR_3DDKSHADOW:
            return *wxBLACK;

        case wxSYS_COLOUR_GRAYTEXT:
        case wxSYS_COLOUR_BTNSHADOW:
        //case wxSYS_COLOUR_3DSHADOW:
            if (!gs_objects.m_colBtnShadow.Ok())
            {
                wxColour faceColour(GetColour(wxSYS_COLOUR_3DFACE));
                gs_objects.m_colBtnShadow =
                   wxColour((unsigned char) (faceColour.Red() * 0.666),
                            (unsigned char) (faceColour.Green() * 0.666),
                            (unsigned char) (faceColour.Blue() * 0.666));
            }

            return gs_objects.m_colBtnShadow;

        case wxSYS_COLOUR_3DHIGHLIGHT:
        //case wxSYS_COLOUR_BTNHIGHLIGHT:
            return * wxWHITE;

        case wxSYS_COLOUR_HIGHLIGHT:
            if (!gs_objects.m_colHighlight.Ok())
            {
                int red, green, blue;
                if ( !GetColourFromGTKWidget(red, green, blue,
                                             wxGTK_BUTTON,
                                             GTK_STATE_SELECTED) )
                {
                    red =
                    green = 0;
                    blue = 0x9c40;
                }

                gs_objects.m_colHighlight = wxColour( red   >> SHIFT,
                                                        green >> SHIFT,
                                                        blue  >> SHIFT );
            }
            return gs_objects.m_colHighlight;

        case wxSYS_COLOUR_LISTBOX:
            if (!gs_objects.m_colListBox.Ok())
            {
                int red, green, blue;
                if ( GetColourFromGTKWidget(red, green, blue,
                                            wxGTK_LIST,
                                            GTK_STATE_NORMAL,
                                            wxGTK_BASE) )
                {
                    gs_objects.m_colListBox = wxColour( red   >> SHIFT,
                                                          green >> SHIFT,
                                                          blue  >> SHIFT );
                }
                else
                {
                    gs_objects.m_colListBox = wxColour(*wxWHITE);
                }
            }
            return gs_objects.m_colListBox;

        case wxSYS_COLOUR_MENUTEXT:
        case wxSYS_COLOUR_WINDOWTEXT:
        case wxSYS_COLOUR_CAPTIONTEXT:
        case wxSYS_COLOUR_INACTIVECAPTIONTEXT:
        case wxSYS_COLOUR_BTNTEXT:
            if (!gs_objects.m_colBtnText.Ok())
            {
                int red, green, blue;
                if ( !GetColourFromGTKWidget(red, green, blue,
                                             wxGTK_BUTTON,
                                             GTK_STATE_NORMAL,
                                             wxGTK_FG) )
                {
                    red =
                    green =
                    blue = 0;
                }

                gs_objects.m_colBtnText = wxColour( red   >> SHIFT,
                                                      green >> SHIFT,
                                                      blue  >> SHIFT );
            }
            return gs_objects.m_colBtnText;

        case wxSYS_COLOUR_INFOBK:
            if (!gs_objects.m_colTooltip.Ok()) {
                GetTooltipColors();
            }
            return gs_objects.m_colTooltip;

        case wxSYS_COLOUR_INFOTEXT:
            if (!gs_objects.m_colTooltipText.Ok()) {
                GetTooltipColors();
            }
            return gs_objects.m_colTooltipText;

        case wxSYS_COLOUR_HIGHLIGHTTEXT:
            if (!gs_objects.m_colHighlightText.Ok())
            {
                wxColour hclr = GetColour(wxSYS_COLOUR_HIGHLIGHT);
                if (hclr.Red() > 200 && hclr.Green() > 200 && hclr.Blue() > 200)
                    gs_objects.m_colHighlightText = wxColour(*wxBLACK);
                else
                    gs_objects.m_colHighlightText = wxColour(*wxWHITE);
            }
            return gs_objects.m_colHighlightText;

        case wxSYS_COLOUR_APPWORKSPACE:
            return *wxWHITE;    // ?

        case wxSYS_COLOUR_ACTIVECAPTION:
        case wxSYS_COLOUR_MENUHILIGHT:
            if (!gs_objects.m_colMenuItemHighlight.Ok())
            {
                int red, green, blue;
                if ( !GetColourFromGTKWidget(red, green, blue,
                                             wxGTK_MENUITEM,
                                             GTK_STATE_SELECTED,
                                             wxGTK_BG) )
                {
                    red =
                    green =
                    blue = 0;
                }

                gs_objects.m_colMenuItemHighlight = wxColour( red  >> SHIFT,
                                                              green >> SHIFT,
                                                              blue  >> SHIFT );
            }
            return gs_objects.m_colMenuItemHighlight;

        case wxSYS_COLOUR_HOTLIGHT:
        case wxSYS_COLOUR_GRADIENTACTIVECAPTION:
        case wxSYS_COLOUR_GRADIENTINACTIVECAPTION:
            // TODO
            return *wxBLACK;

        case wxSYS_COLOUR_MAX:
        default:
            wxFAIL_MSG( _T("unknown system colour index") );
    }

    return *wxWHITE;
}

wxFont wxSystemSettingsNative::GetFont( wxSystemFont index )
{
    switch (index)
    {
        case wxSYS_OEM_FIXED_FONT:
        case wxSYS_ANSI_FIXED_FONT:
        case wxSYS_SYSTEM_FIXED_FONT:
        {
            return *wxNORMAL_FONT;
        }
        case wxSYS_ANSI_VAR_FONT:
        case wxSYS_SYSTEM_FONT:
        case wxSYS_DEVICE_DEFAULT_FONT:
        case wxSYS_DEFAULT_GUI_FONT:
        {
            if (!gs_objects.m_fontSystem.Ok())
            {
                GtkWidget *widget = gtk_button_new();
                GtkStyle *def = gtk_rc_get_style( widget );
                if ( !def || !def->font_desc )
                    def = gtk_widget_get_default_style();
                if ( def && def->font_desc )
                {
                    wxNativeFontInfo info;
                    info.description =
                        pango_font_description_copy(def->font_desc);
                    gs_objects.m_fontSystem = wxFont(info);
                }
                else
                {
                    GtkSettings *settings = gtk_settings_get_default();
                    gchar *font_name = NULL;
                    g_object_get ( settings,
                                   "gtk-font-name",
                                   &font_name,
                                   NULL);
                    if (!font_name)
                        gs_objects.m_fontSystem = wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
                    else
                        gs_objects.m_fontSystem = wxFont(wxString::FromAscii(font_name));
                    g_free (font_name);
                }
                gtk_widget_destroy( widget );
            }
            return gs_objects.m_fontSystem;
        }

        default:
            return wxNullFont;
    }
}

int wxSystemSettingsNative::GetMetric( wxSystemMetric index, wxWindow* win )
{
    bool success = false;

    guchar *data = NULL;
    GdkWindow *window = NULL;
    if(win && GTK_WIDGET_REALIZED(win->GetHandle()))
        window = win->GetHandle()->window;

    switch (index)
    {
        case wxSYS_BORDER_X:
        case wxSYS_BORDER_Y:
        case wxSYS_EDGE_X:
        case wxSYS_EDGE_Y:
        case wxSYS_FRAMESIZE_X:
        case wxSYS_FRAMESIZE_Y:
            // If a window is specified/realized, and it is a toplevel window, we can query from wm.
            // The returned border thickness is outside the client area in that case.
            if (window)
            {
                wxTopLevelWindow *tlw = wxDynamicCast(win, wxTopLevelWindow);
                if (!tlw)
                    return -1; // not a tlw, not sure how to approach
                else
                {
                    // Check if wm supports frame extents - we can't know
                    // the border widths if it does not.
#if GTK_CHECK_VERSION(2,2,0)
                    if (!gtk_check_version(2,2,0))
                    {
                        if (!gdk_x11_screen_supports_net_wm_hint(
                                gdk_drawable_get_screen(window),
                                gdk_atom_intern("_NET_FRAME_EXTENTS", false) ) )
                            return -1;
                    }
                    else
#endif
                    {
                        if (!gdk_net_wm_supports(gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
                            return -1;
                    }

                    // Get the frame extents from the windowmanager.
                    // In most cases the top extent is the titlebar, so we use the bottom extent
                    // for the heights.

                    Atom type;
                    gint format;
                    gulong nitems;

#if GTK_CHECK_VERSION(2,2,0)
                    if (!gtk_check_version(2,2,0))
                    {
                        gulong bytes_after;
                        success = (XGetWindowProperty (GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(window)),
                                            GDK_WINDOW_XWINDOW(window),
                                            gdk_x11_get_xatom_by_name_for_display (
                                                    gdk_drawable_get_display(window),
                                                    "_NET_FRAME_EXTENTS" ),
                                            0, // left, right, top, bottom, CARDINAL[4]/32
                                            G_MAXLONG, // size of long
                                            false, // do not delete property
                                            XA_CARDINAL, // 32 bit
                                            &type, &format, &nitems, &bytes_after, &data
                                           ) == Success);
                    }
#endif
                    if (success)
                    {
                        int border_return = -1;

                        if ((type == XA_CARDINAL) && (format == 32) && (nitems >= 4) && (data))
                        {
                            long *borders;
                            borders = (long*)data;
                            switch(index)
                            {
                                case wxSYS_BORDER_X:
                                case wxSYS_EDGE_X:
                                case wxSYS_FRAMESIZE_X:
                                    border_return = borders[1]; // width of right extent
                                    break;
                                default:
                                    border_return = borders[3]; // height of bottom extent
                                    break;
                            }
                        }

                        if (data)
                            XFree(data);

                        return border_return;
                    }
                }
            }

            return -1; // no window specified

        case wxSYS_CURSOR_X:
        case wxSYS_CURSOR_Y:
#ifdef __WXGTK24__
            if (!gtk_check_version(2,4,0))
            {
                if (window)
                    return gdk_display_get_default_cursor_size(gdk_drawable_get_display(window));
                else
                    return gdk_display_get_default_cursor_size(gdk_display_get_default());
            }
            else
#endif
                return 16;

        case wxSYS_DCLICK_X:
        case wxSYS_DCLICK_Y:
            gint dclick_distance;
#if GTK_CHECK_VERSION(2,2,0)
            if (window && !gtk_check_version(2,2,0))
                g_object_get(gtk_settings_get_for_screen(gdk_drawable_get_screen(window)),
                                "gtk-double-click-distance", &dclick_distance, NULL);
            else
#endif
                g_object_get(gtk_settings_get_default(),
                                "gtk-double-click-distance", &dclick_distance, NULL);

            return dclick_distance * 2;

        case wxSYS_DRAG_X:
        case wxSYS_DRAG_Y:
            gint drag_threshold;
#if GTK_CHECK_VERSION(2,2,0)
            if (window && !gtk_check_version(2,2,0))
            {
                g_object_get(
                        gtk_settings_get_for_screen(gdk_drawable_get_screen(window)),
                        "gtk-dnd-drag-threshold",
                        &drag_threshold, NULL);
            }
            else
#endif
            {
                g_object_get(gtk_settings_get_default(),
                             "gtk-dnd-drag-threshold", &drag_threshold, NULL);
            }

            return drag_threshold * 2;

        // MBN: ditto for icons
        case wxSYS_ICON_X:     return 32;
        case wxSYS_ICON_Y:     return 32;

        case wxSYS_SCREEN_X:
#if defined(__WXGTK20__) && GTK_CHECK_VERSION(2,2,0)
            if (window && !gtk_check_version(2,2,0))
                return gdk_screen_get_width(gdk_drawable_get_screen(window));
            else
#endif
                return gdk_screen_width();

        case wxSYS_SCREEN_Y:
#if defined(__WXGTK20__) && GTK_CHECK_VERSION(2,2,0)
            if (window && !gtk_check_version(2,2,0))
                return gdk_screen_get_height(gdk_drawable_get_screen(window));
            else
#endif
                return gdk_screen_height();

        case wxSYS_HSCROLL_Y:  return 15;
        case wxSYS_VSCROLL_X:  return 15;

        case wxSYS_CAPTION_Y:
            if (!window)
                // No realized window specified, and no implementation for that case yet.
                return -1;

            // Check if wm supports frame extents - we can't know the caption height if it does not.
#if GTK_CHECK_VERSION(2,2,0)
            if (!gtk_check_version(2,2,0))
            {
                if (!gdk_x11_screen_supports_net_wm_hint(
                        gdk_drawable_get_screen(window),
                        gdk_atom_intern("_NET_FRAME_EXTENTS", false) ) )
                    return -1;
            }
            else
#endif
            {
                if (!gdk_net_wm_supports(gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
                    return -1;
            }

            wxASSERT_MSG( wxDynamicCast(win, wxTopLevelWindow),
                          wxT("Asking for caption height of a non toplevel window") );

            // Get the height of the top windowmanager border.
            // This is the titlebar in most cases. The titlebar might be elsewhere, and
            // we could check which is the thickest wm border to decide on which side the
            // titlebar is, but this might lead to interesting behaviours in used code.
            // Reconsider when we have a way to report to the user on which side it is.

            Atom type;
            gint format;
            gulong nitems;

#if GTK_CHECK_VERSION(2,2,0)
            if (!gtk_check_version(2,2,0))
            {
                gulong bytes_after;
                success = (XGetWindowProperty (GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(window)),
                                    GDK_WINDOW_XWINDOW(window),
                                    gdk_x11_get_xatom_by_name_for_display (
                                            gdk_drawable_get_display(window),
                                            "_NET_FRAME_EXTENTS" ),
                                    0, // left, right, top, bottom, CARDINAL[4]/32
                                    G_MAXLONG, // size of long
                                    false, // do not delete property
                                    XA_CARDINAL, // 32 bit
                                    &type, &format, &nitems, &bytes_after, &data
                                   ) == Success);
            }
#endif
            if (success)
            {
                int caption_height = -1;

                if ((type == XA_CARDINAL) && (format == 32) && (nitems >= 3) && (data))
                {
                    long *borders;
                    borders = (long*)data;
                    caption_height = borders[2]; // top frame extent
                }

                if (data)
                    XFree(data);

                return caption_height;
            }

            // Try a default approach without a window pointer, if possible
            // ...

            return -1;

        case wxSYS_PENWINDOWS_PRESENT:
            // No MS Windows for Pen computing extension available in X11 based gtk+.
            return 0;

        default:
            return -1;   // metric is unknown
    }
}

bool wxSystemSettingsNative::HasFeature(wxSystemFeature index)
{
    switch (index)
    {
        case wxSYS_CAN_ICONIZE_FRAME:
            return FALSE;

        case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
            return TRUE;

        default:
            return FALSE;
    }
}
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: gtk/settings.cpp
	3	// Purpose:
	4	// Author: Robert Roebling
	5	// Modified by: Mart Raudsepp (GetMetric)
	6	// Id: $Id$
	7	// Copyright: (c) 1998 Robert Roebling
	8	// Licence: wxWindows licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11	// For compilers that support precompilation, includes "wx.h".
	12	#include "wx/wxprec.h"
	13
	14	#include "wx/settings.h"
	15	#include "wx/debug.h"
	16	#include "wx/cmndata.h"
	17	#include "wx/fontutil.h"
	18	#include "wx/toplevel.h"
	19
	20	// Using gtk_list_new, which is deprecated since GTK2
	21	// Using gtk_object_sink, which is deprecated since GTK+-2.9.0
	22	#ifdef GTK_DISABLE_DEPRECATED
	23	#undef GTK_DISABLE_DEPRECATED
	24	#endif
	25
	26	#include <gdk/gdk.h>
	27	#include <gdk/gdkx.h>
	28	#include <gdk/gdkprivate.h>
	29	#include <gtk/gtk.h>
	30
	31	#include <X11/Xatom.h>
	32
	33	#define SHIFT (8*(sizeof(short int)-sizeof(char)))
	34
	35	// ----------------------------------------------------------------------------
	36	// wxSystemObjects
	37	// ----------------------------------------------------------------------------
	38
	39	struct wxSystemObjects
	40	{
	41	wxColour m_colBtnFace,
	42	m_colBtnShadow,
	43	m_colBtnHighlight,
	44	m_colHighlight,
	45	m_colHighlightText,
	46	m_colListBox,
	47	m_colBtnText,
	48	m_colMenuItemHighlight,
	49	m_colTooltip,
	50	m_colTooltipText;
	51
	52	wxFont m_fontSystem;
	53	};
	54
	55	static wxSystemObjects gs_objects;
	56
	57	// ----------------------------------------------------------------------------
	58	// wxSystemSettings implementation
	59	// ----------------------------------------------------------------------------
	60
	61	// kind of widget to use in GetColourFromGTKWidget
	62	enum wxGtkWidgetType
	63	{
	64	wxGTK_BUTTON,
	65	wxGTK_LIST,
	66	wxGTK_MENUITEM
	67	};
	68
	69	// the colour we need
	70	enum wxGtkColourType
	71	{
	72	wxGTK_FG,
	73	wxGTK_BG,
	74	wxGTK_BASE
	75	};
	76
	77	// wxSystemSettings::GetColour() helper: get the colours from a GTK+
	78	// widget style, return true if we did get them, false to use defaults
	79	static bool GetColourFromGTKWidget(int& red, int& green, int& blue,
	80	wxGtkWidgetType type = wxGTK_BUTTON,
	81	GtkStateType state = GTK_STATE_NORMAL,
	82	wxGtkColourType colour = wxGTK_BG)
	83	{
	84	GtkWidget *widget;
	85	switch ( type )
	86	{
	87	default:
	88	wxFAIL_MSG( _T("unexpected GTK widget type") );
	89	// fall through
	90
	91	case wxGTK_BUTTON:
	92	widget = gtk_button_new();
	93	break;
	94
	95	case wxGTK_LIST:
	96	widget = gtk_list_new();
	97	break;
	98
	99	case wxGTK_MENUITEM:
	100	widget = gtk_menu_item_new();
	101	}
	102
	103	GtkStyle *def = gtk_rc_get_style( widget );
	104	if ( !def )
	105	def = gtk_widget_get_default_style();
	106
	107	bool ok;
	108	if ( def )
	109	{
	110	GdkColor *col;
	111	switch ( colour )
	112	{
	113	default:
	114	wxFAIL_MSG( _T("unexpected GTK colour type") );
	115	// fall through
	116
	117	case wxGTK_FG:
	118	col = def->fg;
	119	break;
	120
	121	case wxGTK_BG:
	122	col = def->bg;
	123	break;
	124
	125	case wxGTK_BASE:
	126	col = def->base;
	127	break;
	128	}
	129
	130	red = col[state].red;
	131	green = col[state].green;
	132	blue = col[state].blue;
	133
	134	ok = TRUE;
	135	}
	136	else
	137	{
	138	ok = FALSE;
	139	}
	140
	141	gtk_widget_destroy( widget );
	142
	143	return ok;
	144	}
	145
	146	static void GetTooltipColors()
	147	{
	148	GtkTooltips* tooltips = gtk_tooltips_new();
	149	gtk_tooltips_force_window(tooltips);
	150	gtk_widget_ensure_style(tooltips->tip_window);
	151	GdkColor c = tooltips->tip_window->style->bg[GTK_STATE_NORMAL];
	152	gs_objects.m_colTooltip = wxColor(c.red >> SHIFT, c.green >> SHIFT, c.blue >> SHIFT);
	153	c = tooltips->tip_window->style->fg[GTK_STATE_NORMAL];
	154	gs_objects.m_colTooltipText = wxColor(c.red >> SHIFT, c.green >> SHIFT, c.blue >> SHIFT);
	155	gtk_object_sink(wx_reinterpret_cast(GtkObject*, tooltips));
	156	}
	157
	158	wxColour wxSystemSettingsNative::GetColour( wxSystemColour index )
	159	{
	160	switch (index)
	161	{
	162	case wxSYS_COLOUR_SCROLLBAR:
	163	case wxSYS_COLOUR_BACKGROUND:
	164	case wxSYS_COLOUR_INACTIVECAPTION:
	165	case wxSYS_COLOUR_MENU:
	166	case wxSYS_COLOUR_WINDOWFRAME:
	167	case wxSYS_COLOUR_ACTIVEBORDER:
	168	case wxSYS_COLOUR_INACTIVEBORDER:
	169	case wxSYS_COLOUR_BTNFACE:
	170	case wxSYS_COLOUR_MENUBAR:
	171	case wxSYS_COLOUR_3DLIGHT:
	172	if (!gs_objects.m_colBtnFace.Ok())
	173	{
	174	int red, green, blue;
	175	if ( !GetColourFromGTKWidget(red, green, blue) )
	176	{
	177	red =
	178	green = 0;
	179	blue = 0x9c40;
	180	}
	181
	182	gs_objects.m_colBtnFace = wxColour( red >> SHIFT,
	183	green >> SHIFT,
	184	blue >> SHIFT );
	185	}
	186	return gs_objects.m_colBtnFace;
	187
	188	case wxSYS_COLOUR_WINDOW:
	189	return *wxWHITE;
	190
	191	case wxSYS_COLOUR_3DDKSHADOW:
	192	return *wxBLACK;
	193
	194	case wxSYS_COLOUR_GRAYTEXT:
	195	case wxSYS_COLOUR_BTNSHADOW:
	196	//case wxSYS_COLOUR_3DSHADOW:
	197	if (!gs_objects.m_colBtnShadow.Ok())
	198	{
	199	wxColour faceColour(GetColour(wxSYS_COLOUR_3DFACE));
	200	gs_objects.m_colBtnShadow =
	201	wxColour((unsigned char) (faceColour.Red() * 0.666),
	202	(unsigned char) (faceColour.Green() * 0.666),
	203	(unsigned char) (faceColour.Blue() * 0.666));
	204	}
	205
	206	return gs_objects.m_colBtnShadow;
	207
	208	case wxSYS_COLOUR_3DHIGHLIGHT:
	209	//case wxSYS_COLOUR_BTNHIGHLIGHT:
	210	return * wxWHITE;
	211
	212	case wxSYS_COLOUR_HIGHLIGHT:
	213	if (!gs_objects.m_colHighlight.Ok())
	214	{
	215	int red, green, blue;
	216	if ( !GetColourFromGTKWidget(red, green, blue,
	217	wxGTK_BUTTON,
	218	GTK_STATE_SELECTED) )
	219	{
	220	red =
	221	green = 0;
	222	blue = 0x9c40;
	223	}
	224
	225	gs_objects.m_colHighlight = wxColour( red >> SHIFT,
	226	green >> SHIFT,
	227	blue >> SHIFT );
	228	}
	229	return gs_objects.m_colHighlight;
	230
	231	case wxSYS_COLOUR_LISTBOX:
	232	if (!gs_objects.m_colListBox.Ok())
	233	{
	234	int red, green, blue;
	235	if ( GetColourFromGTKWidget(red, green, blue,
	236	wxGTK_LIST,
	237	GTK_STATE_NORMAL,
	238	wxGTK_BASE) )
	239	{
	240	gs_objects.m_colListBox = wxColour( red >> SHIFT,
	241	green >> SHIFT,
	242	blue >> SHIFT );
	243	}
	244	else
	245	{
	246	gs_objects.m_colListBox = wxColour(*wxWHITE);
	247	}
	248	}
	249	return gs_objects.m_colListBox;
	250
	251	case wxSYS_COLOUR_MENUTEXT:
	252	case wxSYS_COLOUR_WINDOWTEXT:
	253	case wxSYS_COLOUR_CAPTIONTEXT:
	254	case wxSYS_COLOUR_INACTIVECAPTIONTEXT:
	255	case wxSYS_COLOUR_BTNTEXT:
	256	if (!gs_objects.m_colBtnText.Ok())
	257	{
	258	int red, green, blue;
	259	if ( !GetColourFromGTKWidget(red, green, blue,
	260	wxGTK_BUTTON,
	261	GTK_STATE_NORMAL,
	262	wxGTK_FG) )
	263	{
	264	red =
	265	green =
	266	blue = 0;
	267	}
	268
	269	gs_objects.m_colBtnText = wxColour( red >> SHIFT,
	270	green >> SHIFT,
	271	blue >> SHIFT );
	272	}
	273	return gs_objects.m_colBtnText;
	274
	275	case wxSYS_COLOUR_INFOBK:
	276	if (!gs_objects.m_colTooltip.Ok()) {
	277	GetTooltipColors();
	278	}
	279	return gs_objects.m_colTooltip;
	280
	281	case wxSYS_COLOUR_INFOTEXT:
	282	if (!gs_objects.m_colTooltipText.Ok()) {
	283	GetTooltipColors();
	284	}
	285	return gs_objects.m_colTooltipText;
	286
	287	case wxSYS_COLOUR_HIGHLIGHTTEXT:
	288	if (!gs_objects.m_colHighlightText.Ok())
	289	{
	290	wxColour hclr = GetColour(wxSYS_COLOUR_HIGHLIGHT);
	291	if (hclr.Red() > 200 && hclr.Green() > 200 && hclr.Blue() > 200)
	292	gs_objects.m_colHighlightText = wxColour(*wxBLACK);
	293	else
	294	gs_objects.m_colHighlightText = wxColour(*wxWHITE);
	295	}
	296	return gs_objects.m_colHighlightText;
	297
	298	case wxSYS_COLOUR_APPWORKSPACE:
	299	return *wxWHITE; // ?
	300
	301	case wxSYS_COLOUR_ACTIVECAPTION:
	302	case wxSYS_COLOUR_MENUHILIGHT:
	303	if (!gs_objects.m_colMenuItemHighlight.Ok())
	304	{
	305	int red, green, blue;
	306	if ( !GetColourFromGTKWidget(red, green, blue,
	307	wxGTK_MENUITEM,
	308	GTK_STATE_SELECTED,
	309	wxGTK_BG) )
	310	{
	311	red =
	312	green =
	313	blue = 0;
	314	}
	315
	316	gs_objects.m_colMenuItemHighlight = wxColour( red >> SHIFT,
	317	green >> SHIFT,
	318	blue >> SHIFT );
	319	}
	320	return gs_objects.m_colMenuItemHighlight;
	321
	322	case wxSYS_COLOUR_HOTLIGHT:
	323	case wxSYS_COLOUR_GRADIENTACTIVECAPTION:
	324	case wxSYS_COLOUR_GRADIENTINACTIVECAPTION:
	325	// TODO
	326	return *wxBLACK;
	327
	328	case wxSYS_COLOUR_MAX:
	329	default:
	330	wxFAIL_MSG( _T("unknown system colour index") );
	331	}
	332
	333	return *wxWHITE;
	334	}
	335
	336	wxFont wxSystemSettingsNative::GetFont( wxSystemFont index )
	337	{
	338	switch (index)
	339	{
	340	case wxSYS_OEM_FIXED_FONT:
	341	case wxSYS_ANSI_FIXED_FONT:
	342	case wxSYS_SYSTEM_FIXED_FONT:
	343	{
	344	return *wxNORMAL_FONT;
	345	}
	346	case wxSYS_ANSI_VAR_FONT:
	347	case wxSYS_SYSTEM_FONT:
	348	case wxSYS_DEVICE_DEFAULT_FONT:
	349	case wxSYS_DEFAULT_GUI_FONT:
	350	{
	351	if (!gs_objects.m_fontSystem.Ok())
	352	{
	353	GtkWidget *widget = gtk_button_new();
	354	GtkStyle *def = gtk_rc_get_style( widget );
	355	if ( !def \|\| !def->font_desc )
	356	def = gtk_widget_get_default_style();
	357	if ( def && def->font_desc )
	358	{
	359	wxNativeFontInfo info;
	360	info.description =
	361	pango_font_description_copy(def->font_desc);
	362	gs_objects.m_fontSystem = wxFont(info);
	363	}
	364	else
	365	{
	366	GtkSettings *settings = gtk_settings_get_default();
	367	gchar *font_name = NULL;
	368	g_object_get ( settings,
	369	"gtk-font-name",
	370	&font_name,
	371	NULL);
	372	if (!font_name)
	373	gs_objects.m_fontSystem = wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
	374	else
	375	gs_objects.m_fontSystem = wxFont(wxString::FromAscii(font_name));
	376	g_free (font_name);
	377	}
	378	gtk_widget_destroy( widget );
	379	}
	380	return gs_objects.m_fontSystem;
	381	}
	382
	383	default:
	384	return wxNullFont;
	385	}
	386	}
	387
	388	int wxSystemSettingsNative::GetMetric( wxSystemMetric index, wxWindow* win )
	389	{
	390	bool success = false;
	391
	392	guchar *data = NULL;
	393	GdkWindow *window = NULL;
	394	if(win && GTK_WIDGET_REALIZED(win->GetHandle()))
	395	window = win->GetHandle()->window;
	396
	397	switch (index)
	398	{
	399	case wxSYS_BORDER_X:
	400	case wxSYS_BORDER_Y:
	401	case wxSYS_EDGE_X:
	402	case wxSYS_EDGE_Y:
	403	case wxSYS_FRAMESIZE_X:
	404	case wxSYS_FRAMESIZE_Y:
	405	// If a window is specified/realized, and it is a toplevel window, we can query from wm.
	406	// The returned border thickness is outside the client area in that case.
	407	if (window)
	408	{
	409	wxTopLevelWindow *tlw = wxDynamicCast(win, wxTopLevelWindow);
	410	if (!tlw)
	411	return -1; // not a tlw, not sure how to approach
	412	else
	413	{
	414	// Check if wm supports frame extents - we can't know
	415	// the border widths if it does not.
	416	#if GTK_CHECK_VERSION(2,2,0)
	417	if (!gtk_check_version(2,2,0))
	418	{
	419	if (!gdk_x11_screen_supports_net_wm_hint(
	420	gdk_drawable_get_screen(window),
	421	gdk_atom_intern("_NET_FRAME_EXTENTS", false) ) )
	422	return -1;
	423	}
	424	else
	425	#endif
	426	{
	427	if (!gdk_net_wm_supports(gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
	428	return -1;
	429	}
	430
	431	// Get the frame extents from the windowmanager.
	432	// In most cases the top extent is the titlebar, so we use the bottom extent
	433	// for the heights.
	434
	435	Atom type;
	436	gint format;
	437	gulong nitems;
	438
	439	#if GTK_CHECK_VERSION(2,2,0)
	440	if (!gtk_check_version(2,2,0))
	441	{
	442	gulong bytes_after;
	443	success = (XGetWindowProperty (GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(window)),
	444	GDK_WINDOW_XWINDOW(window),
	445	gdk_x11_get_xatom_by_name_for_display (
	446	gdk_drawable_get_display(window),
	447	"_NET_FRAME_EXTENTS" ),
	448	0, // left, right, top, bottom, CARDINAL[4]/32
	449	G_MAXLONG, // size of long
	450	false, // do not delete property
	451	XA_CARDINAL, // 32 bit
	452	&type, &format, &nitems, &bytes_after, &data
	453	) == Success);
	454	}
	455	#endif
	456	if (success)
	457	{
	458	int border_return = -1;
	459
	460	if ((type == XA_CARDINAL) && (format == 32) && (nitems >= 4) && (data))
	461	{
	462	long *borders;
	463	borders = (long*)data;
	464	switch(index)
	465	{
	466	case wxSYS_BORDER_X:
	467	case wxSYS_EDGE_X:
	468	case wxSYS_FRAMESIZE_X:
	469	border_return = borders[1]; // width of right extent
	470	break;
	471	default:
	472	border_return = borders[3]; // height of bottom extent
	473	break;
	474	}
	475	}
	476
	477	if (data)
	478	XFree(data);
	479
	480	return border_return;
	481	}
	482	}
	483	}
	484
	485	return -1; // no window specified
	486
	487	case wxSYS_CURSOR_X:
	488	case wxSYS_CURSOR_Y:
	489	#ifdef __WXGTK24__
	490	if (!gtk_check_version(2,4,0))
	491	{
	492	if (window)
	493	return gdk_display_get_default_cursor_size(gdk_drawable_get_display(window));
	494	else
	495	return gdk_display_get_default_cursor_size(gdk_display_get_default());
	496	}
	497	else
	498	#endif
	499	return 16;
	500
	501	case wxSYS_DCLICK_X:
	502	case wxSYS_DCLICK_Y:
	503	gint dclick_distance;
	504	#if GTK_CHECK_VERSION(2,2,0)
	505	if (window && !gtk_check_version(2,2,0))
	506	g_object_get(gtk_settings_get_for_screen(gdk_drawable_get_screen(window)),
	507	"gtk-double-click-distance", &dclick_distance, NULL);
	508	else
	509	#endif
	510	g_object_get(gtk_settings_get_default(),
	511	"gtk-double-click-distance", &dclick_distance, NULL);
	512
	513	return dclick_distance * 2;
	514
	515	case wxSYS_DRAG_X:
	516	case wxSYS_DRAG_Y:
	517	gint drag_threshold;
	518	#if GTK_CHECK_VERSION(2,2,0)
	519	if (window && !gtk_check_version(2,2,0))
	520	{
	521	g_object_get(
	522	gtk_settings_get_for_screen(gdk_drawable_get_screen(window)),
	523	"gtk-dnd-drag-threshold",
	524	&drag_threshold, NULL);
	525	}
	526	else
	527	#endif
	528	{
	529	g_object_get(gtk_settings_get_default(),
	530	"gtk-dnd-drag-threshold", &drag_threshold, NULL);
	531	}
	532
	533	return drag_threshold * 2;
	534
	535	// MBN: ditto for icons
	536	case wxSYS_ICON_X: return 32;
	537	case wxSYS_ICON_Y: return 32;
	538
	539	case wxSYS_SCREEN_X:
	540	#if defined(__WXGTK20__) && GTK_CHECK_VERSION(2,2,0)
	541	if (window && !gtk_check_version(2,2,0))
	542	return gdk_screen_get_width(gdk_drawable_get_screen(window));
	543	else
	544	#endif
	545	return gdk_screen_width();
	546
	547	case wxSYS_SCREEN_Y:
	548	#if defined(__WXGTK20__) && GTK_CHECK_VERSION(2,2,0)
	549	if (window && !gtk_check_version(2,2,0))
	550	return gdk_screen_get_height(gdk_drawable_get_screen(window));
	551	else
	552	#endif
	553	return gdk_screen_height();
	554
	555	case wxSYS_HSCROLL_Y: return 15;
	556	case wxSYS_VSCROLL_X: return 15;
	557
	558	case wxSYS_CAPTION_Y:
	559	if (!window)
	560	// No realized window specified, and no implementation for that case yet.
	561	return -1;
	562
	563	// Check if wm supports frame extents - we can't know the caption height if it does not.
	564	#if GTK_CHECK_VERSION(2,2,0)
	565	if (!gtk_check_version(2,2,0))
	566	{
	567	if (!gdk_x11_screen_supports_net_wm_hint(
	568	gdk_drawable_get_screen(window),
	569	gdk_atom_intern("_NET_FRAME_EXTENTS", false) ) )
	570	return -1;
	571	}
	572	else
	573	#endif
	574	{
	575	if (!gdk_net_wm_supports(gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
	576	return -1;
	577	}
	578
	579	wxASSERT_MSG( wxDynamicCast(win, wxTopLevelWindow),
	580	wxT("Asking for caption height of a non toplevel window") );
	581
	582	// Get the height of the top windowmanager border.
	583	// This is the titlebar in most cases. The titlebar might be elsewhere, and
	584	// we could check which is the thickest wm border to decide on which side the
	585	// titlebar is, but this might lead to interesting behaviours in used code.
	586	// Reconsider when we have a way to report to the user on which side it is.
	587
	588	Atom type;
	589	gint format;
	590	gulong nitems;
	591
	592	#if GTK_CHECK_VERSION(2,2,0)
	593	if (!gtk_check_version(2,2,0))
	594	{
	595	gulong bytes_after;
	596	success = (XGetWindowProperty (GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(window)),
	597	GDK_WINDOW_XWINDOW(window),
	598	gdk_x11_get_xatom_by_name_for_display (
	599	gdk_drawable_get_display(window),
	600	"_NET_FRAME_EXTENTS" ),
	601	0, // left, right, top, bottom, CARDINAL[4]/32
	602	G_MAXLONG, // size of long
	603	false, // do not delete property
	604	XA_CARDINAL, // 32 bit
	605	&type, &format, &nitems, &bytes_after, &data
	606	) == Success);
	607	}
	608	#endif
	609	if (success)
	610	{
	611	int caption_height = -1;
	612
	613	if ((type == XA_CARDINAL) && (format == 32) && (nitems >= 3) && (data))
	614	{
	615	long *borders;
	616	borders = (long*)data;
	617	caption_height = borders[2]; // top frame extent
	618	}
	619
	620	if (data)
	621	XFree(data);
	622
	623	return caption_height;
	624	}
	625
	626	// Try a default approach without a window pointer, if possible
	627	// ...
	628
	629	return -1;
	630
	631	case wxSYS_PENWINDOWS_PRESENT:
	632	// No MS Windows for Pen computing extension available in X11 based gtk+.
	633	return 0;
	634
	635	default:
	636	return -1; // metric is unknown
	637	}
	638	}
	639
	640	bool wxSystemSettingsNative::HasFeature(wxSystemFeature index)
	641	{
	642	switch (index)
	643	{
	644	case wxSYS_CAN_ICONIZE_FRAME:
	645	return FALSE;
	646
	647	case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
	648	return TRUE;
	649
	650	default:
	651	return FALSE;
	652	}
	653	}