src/gtk/settings.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/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"

#ifndef WX_PRECOMP
    #include "wx/cmndata.h"
    #include "wx/toplevel.h"
#endif

#include "wx/fontutil.h"

#include <gtk/gtkversion.h>
#if GTK_CHECK_VERSION(2, 9, 0)
    // gtk_object_sink
    #undef GTK_DISABLE_DEPRECATED
#endif
#include <gtk/gtk.h>
#include <gdk/gdkx.h>

#include <X11/Xatom.h>

// ----------------------------------------------------------------------------
// 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
static bool GetColourFromGTKWidget(GdkColor& gdkColor,
                                   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_tree_view_new_with_model(
                (GtkTreeModel*)gtk_list_store_new(1, G_TYPE_INT));
            break;

        case wxGTK_MENUITEM:
            widget = gtk_menu_item_new();
    }

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

    const bool ok = def != NULL;
    if (ok)
    {
        switch ( colour )
        {
            default:
                wxFAIL_MSG( _T("unexpected GTK colour type") );
                // fall through

            case wxGTK_FG:
                gdkColor = def->fg[state];
                break;

            case wxGTK_BG:
                gdkColor = def->bg[state];
                break;

            case wxGTK_BASE:
                gdkColor = def->base[state];
                break;
        }
    }

    gtk_object_sink((GtkObject*)widget);

    return ok;
}

static void GetTooltipColors()
{
    GtkWidget* widget = gtk_window_new(GTK_WINDOW_POPUP);
    const char* name = "gtk-tooltip";
    if (gtk_check_version(2, 11, 0))
        name = "gtk-tooltips";
    gtk_widget_set_name(widget, name);
    gtk_widget_ensure_style(widget);

    GdkColor c = widget->style->bg[GTK_STATE_NORMAL];
    gs_objects.m_colTooltip = wxColor(c);
    c = widget->style->fg[GTK_STATE_NORMAL];
    gs_objects.m_colTooltipText = wxColor(c);

    gtk_widget_destroy(widget);
}

wxColour wxSystemSettingsNative::GetColour( wxSystemColour index )
{
    wxColor color;
    GdkColor gdkColor;
    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())
            {
                gdkColor.red =
                gdkColor.green = 0;
                gdkColor.blue = 0x9c40;
                GetColourFromGTKWidget(gdkColor);
                gs_objects.m_colBtnFace = wxColor(gdkColor);
            }
            color = gs_objects.m_colBtnFace;
            break;

        case wxSYS_COLOUR_WINDOW:
            color = *wxWHITE;
            break;

        case wxSYS_COLOUR_3DDKSHADOW:
            color = *wxBLACK;
            break;

        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() * 2 / 3),
                            (unsigned char) (faceColour.Green() * 2 / 3),
                            (unsigned char) (faceColour.Blue() * 2 / 3));
            }
            color = gs_objects.m_colBtnShadow;
            break;

        case wxSYS_COLOUR_3DHIGHLIGHT:
        //case wxSYS_COLOUR_BTNHIGHLIGHT:
            color = *wxWHITE;
            break;

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

        case wxSYS_COLOUR_LISTBOX:
            if (!gs_objects.m_colListBox.Ok())
            {
                if ( GetColourFromGTKWidget(gdkColor,
                                            wxGTK_LIST,
                                            GTK_STATE_NORMAL,
                                            wxGTK_BASE) )
                {
                    gs_objects.m_colListBox = wxColour(gdkColor);
                }
                else
                {
                    gs_objects.m_colListBox = *wxWHITE;
                }
            }
            color = gs_objects.m_colListBox;
            break;

        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())
            {
                gdkColor.red =
                gdkColor.green =
                gdkColor.blue = 0;
                GetColourFromGTKWidget(
                    gdkColor, wxGTK_BUTTON, GTK_STATE_NORMAL, wxGTK_FG);
                gs_objects.m_colBtnText = wxColour(gdkColor);
            }
            color = gs_objects.m_colBtnText;
            break;

        case wxSYS_COLOUR_INFOBK:
            if (!gs_objects.m_colTooltip.Ok()) {
                GetTooltipColors();
            }
            color = gs_objects.m_colTooltip;
            break;

        case wxSYS_COLOUR_INFOTEXT:
            if (!gs_objects.m_colTooltipText.Ok()) {
                GetTooltipColors();
            }
            color = gs_objects.m_colTooltipText;
            break;

        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 = *wxBLACK;
                else
                    gs_objects.m_colHighlightText = *wxWHITE;
            }
            color = gs_objects.m_colHighlightText;
            break;

        case wxSYS_COLOUR_APPWORKSPACE:
            color = *wxWHITE;    // ?
            break;

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

        case wxSYS_COLOUR_HOTLIGHT:
        case wxSYS_COLOUR_GRADIENTACTIVECAPTION:
        case wxSYS_COLOUR_GRADIENTINACTIVECAPTION:
            // TODO
            color = *wxBLACK;
            break;

        case wxSYS_COLOUR_MAX:
        default:
            wxFAIL_MSG( _T("unknown system colour index") );
            color = *wxWHITE;
            break;
    }

    return color;
}

wxFont wxSystemSettingsNative::GetFont( wxSystemFont index )
{
    wxFont font;
    switch (index)
    {
        case wxSYS_OEM_FIXED_FONT:
        case wxSYS_ANSI_FIXED_FONT:
        case wxSYS_SYSTEM_FIXED_FONT:
            font = *wxNORMAL_FONT;
            break;

        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_object_sink((GtkObject*)widget);
            }
            font = gs_objects.m_fontSystem;
            break;

        default:
            break;
    }
    return font;
}

static bool GetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
{
    bool success = false;
    Atom property = 0;
#if GTK_CHECK_VERSION(2, 2, 0)
    if (gtk_check_version(2, 2, 0) == NULL)
    {
        if (gdk_x11_screen_supports_net_wm_hint(
                gdk_drawable_get_screen(window),
                gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
        {
            success = true;
            property = gdk_x11_get_xatom_by_name_for_display(
                gdk_drawable_get_display(window),
                "_NET_FRAME_EXTENTS");
        }
    }
    else
#endif
    {
        if (gdk_net_wm_supports(gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
        {
            success = true;
            property = gdk_x11_get_xatom_by_name("_NET_FRAME_EXTENTS");
        }
    }
    if (success)
    {
        Atom type;
        int format;
        gulong nitems, bytes_after;
        long* data = NULL;
        success = XGetWindowProperty(
            gdk_x11_drawable_get_xdisplay(window),
            gdk_x11_drawable_get_xid(window),
            property,
            0, 4,
            false,
            XA_CARDINAL,
            &type, &format, &nitems, &bytes_after, (guchar**)&data
            ) == Success;
        if (success)
        {
            success = data && nitems == 4;
            if (success)
            {
                if (left)   *left   = int(data[0]);
                if (right)  *right  = int(data[1]);
                if (top)    *top    = int(data[2]);
                if (bottom) *bottom = int(data[3]);
            }
            if (data)
                XFree(data);
        }
    }
    return success;
}

int wxSystemSettingsNative::GetMetric( wxSystemMetric index, wxWindow* win )
{
    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
                {
                    // 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.
                    int right, bottom;
                    if (GetFrameExtents(window, NULL, &right, NULL, &bottom))
                    {
                        switch (index)
                        {
                            case wxSYS_BORDER_X:
                            case wxSYS_EDGE_X:
                            case wxSYS_FRAMESIZE_X:
                                return right; // width of right extent
                            default:
                                return bottom; // height of bottom extent
                        }
                    }
                }
            }

            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);
            }

            // The correct thing here would be to double the value
            // since that is what the API wants. But the values
            // are much bigger under GNOME than under Windows and
            // just seem to much in many cases to be useful.
            // drag_threshold *= 2;

            return drag_threshold;

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

        case wxSYS_SCREEN_X:
#if 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 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;

            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.
            {
                int top;
                if (GetFrameExtents(window, NULL, NULL, &top, NULL))
                {
                    return top; // top frame extent
                }
            }

            // 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: src/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
	16	#ifndef WX_PRECOMP
	17	#include "wx/cmndata.h"
	18	#include "wx/toplevel.h"
	19	#endif
	20
	21	#include "wx/fontutil.h"
	22
	23	#include <gtk/gtkversion.h>
	24	#if GTK_CHECK_VERSION(2, 9, 0)
	25	// gtk_object_sink
	26	#undef GTK_DISABLE_DEPRECATED
	27	#endif
	28	#include <gtk/gtk.h>
	29	#include <gdk/gdkx.h>
	30
	31	#include <X11/Xatom.h>
	32
	33	// ----------------------------------------------------------------------------
	34	// wxSystemObjects
	35	// ----------------------------------------------------------------------------
	36
	37	struct wxSystemObjects
	38	{
	39	wxColour m_colBtnFace,
	40	m_colBtnShadow,
	41	m_colBtnHighlight,
	42	m_colHighlight,
	43	m_colHighlightText,
	44	m_colListBox,
	45	m_colBtnText,
	46	m_colMenuItemHighlight,
	47	m_colTooltip,
	48	m_colTooltipText;
	49
	50	wxFont m_fontSystem;
	51	};
	52
	53	static wxSystemObjects gs_objects;
	54
	55	// ----------------------------------------------------------------------------
	56	// wxSystemSettings implementation
	57	// ----------------------------------------------------------------------------
	58
	59	// kind of widget to use in GetColourFromGTKWidget
	60	enum wxGtkWidgetType
	61	{
	62	wxGTK_BUTTON,
	63	wxGTK_LIST,
	64	wxGTK_MENUITEM
	65	};
	66
	67	// the colour we need
	68	enum wxGtkColourType
	69	{
	70	wxGTK_FG,
	71	wxGTK_BG,
	72	wxGTK_BASE
	73	};
	74
	75	// wxSystemSettings::GetColour() helper: get the colours from a GTK+
	76	// widget style, return true if we did get them
	77	static bool GetColourFromGTKWidget(GdkColor& gdkColor,
	78	wxGtkWidgetType type = wxGTK_BUTTON,
	79	GtkStateType state = GTK_STATE_NORMAL,
	80	wxGtkColourType colour = wxGTK_BG)
	81	{
	82	GtkWidget *widget;
	83	switch ( type )
	84	{
	85	default:
	86	wxFAIL_MSG( _T("unexpected GTK widget type") );
	87	// fall through
	88
	89	case wxGTK_BUTTON:
	90	widget = gtk_button_new();
	91	break;
	92
	93	case wxGTK_LIST:
	94	widget = gtk_tree_view_new_with_model(
	95	(GtkTreeModel*)gtk_list_store_new(1, G_TYPE_INT));
	96	break;
	97
	98	case wxGTK_MENUITEM:
	99	widget = gtk_menu_item_new();
	100	}
	101
	102	GtkStyle *def = gtk_rc_get_style( widget );
	103	if ( !def )
	104	def = gtk_widget_get_default_style();
	105
	106	const bool ok = def != NULL;
	107	if (ok)
	108	{
	109	switch ( colour )
	110	{
	111	default:
	112	wxFAIL_MSG( _T("unexpected GTK colour type") );
	113	// fall through
	114
	115	case wxGTK_FG:
	116	gdkColor = def->fg[state];
	117	break;
	118
	119	case wxGTK_BG:
	120	gdkColor = def->bg[state];
	121	break;
	122
	123	case wxGTK_BASE:
	124	gdkColor = def->base[state];
	125	break;
	126	}
	127	}
	128
	129	gtk_object_sink((GtkObject*)widget);
	130
	131	return ok;
	132	}
	133
	134	static void GetTooltipColors()
	135	{
	136	GtkWidget* widget = gtk_window_new(GTK_WINDOW_POPUP);
	137	const char* name = "gtk-tooltip";
	138	if (gtk_check_version(2, 11, 0))
	139	name = "gtk-tooltips";
	140	gtk_widget_set_name(widget, name);
	141	gtk_widget_ensure_style(widget);
	142
	143	GdkColor c = widget->style->bg[GTK_STATE_NORMAL];
	144	gs_objects.m_colTooltip = wxColor(c);
	145	c = widget->style->fg[GTK_STATE_NORMAL];
	146	gs_objects.m_colTooltipText = wxColor(c);
	147
	148	gtk_widget_destroy(widget);
	149	}
	150
	151	wxColour wxSystemSettingsNative::GetColour( wxSystemColour index )
	152	{
	153	wxColor color;
	154	GdkColor gdkColor;
	155	switch (index)
	156	{
	157	case wxSYS_COLOUR_SCROLLBAR:
	158	case wxSYS_COLOUR_BACKGROUND:
	159	case wxSYS_COLOUR_INACTIVECAPTION:
	160	case wxSYS_COLOUR_MENU:
	161	case wxSYS_COLOUR_WINDOWFRAME:
	162	case wxSYS_COLOUR_ACTIVEBORDER:
	163	case wxSYS_COLOUR_INACTIVEBORDER:
	164	case wxSYS_COLOUR_BTNFACE:
	165	case wxSYS_COLOUR_MENUBAR:
	166	case wxSYS_COLOUR_3DLIGHT:
	167	if (!gs_objects.m_colBtnFace.Ok())
	168	{
	169	gdkColor.red =
	170	gdkColor.green = 0;
	171	gdkColor.blue = 0x9c40;
	172	GetColourFromGTKWidget(gdkColor);
	173	gs_objects.m_colBtnFace = wxColor(gdkColor);
	174	}
	175	color = gs_objects.m_colBtnFace;
	176	break;
	177
	178	case wxSYS_COLOUR_WINDOW:
	179	color = *wxWHITE;
	180	break;
	181
	182	case wxSYS_COLOUR_3DDKSHADOW:
	183	color = *wxBLACK;
	184	break;
	185
	186	case wxSYS_COLOUR_GRAYTEXT:
	187	case wxSYS_COLOUR_BTNSHADOW:
	188	//case wxSYS_COLOUR_3DSHADOW:
	189	if (!gs_objects.m_colBtnShadow.Ok())
	190	{
	191	wxColour faceColour(GetColour(wxSYS_COLOUR_3DFACE));
	192	gs_objects.m_colBtnShadow =
	193	wxColour((unsigned char) (faceColour.Red() * 2 / 3),
	194	(unsigned char) (faceColour.Green() * 2 / 3),
	195	(unsigned char) (faceColour.Blue() * 2 / 3));
	196	}
	197	color = gs_objects.m_colBtnShadow;
	198	break;
	199
	200	case wxSYS_COLOUR_3DHIGHLIGHT:
	201	//case wxSYS_COLOUR_BTNHIGHLIGHT:
	202	color = *wxWHITE;
	203	break;
	204
	205	case wxSYS_COLOUR_HIGHLIGHT:
	206	if (!gs_objects.m_colHighlight.Ok())
	207	{
	208	gdkColor.red =
	209	gdkColor.green = 0;
	210	gdkColor.blue = 0x9c40;
	211	GetColourFromGTKWidget(
	212	gdkColor, wxGTK_BUTTON, GTK_STATE_SELECTED);
	213	gs_objects.m_colHighlight = wxColour(gdkColor);
	214	}
	215	color = gs_objects.m_colHighlight;
	216	break;
	217
	218	case wxSYS_COLOUR_LISTBOX:
	219	if (!gs_objects.m_colListBox.Ok())
	220	{
	221	if ( GetColourFromGTKWidget(gdkColor,
	222	wxGTK_LIST,
	223	GTK_STATE_NORMAL,
	224	wxGTK_BASE) )
	225	{
	226	gs_objects.m_colListBox = wxColour(gdkColor);
	227	}
	228	else
	229	{
	230	gs_objects.m_colListBox = *wxWHITE;
	231	}
	232	}
	233	color = gs_objects.m_colListBox;
	234	break;
	235
	236	case wxSYS_COLOUR_MENUTEXT:
	237	case wxSYS_COLOUR_WINDOWTEXT:
	238	case wxSYS_COLOUR_CAPTIONTEXT:
	239	case wxSYS_COLOUR_INACTIVECAPTIONTEXT:
	240	case wxSYS_COLOUR_BTNTEXT:
	241	if (!gs_objects.m_colBtnText.Ok())
	242	{
	243	gdkColor.red =
	244	gdkColor.green =
	245	gdkColor.blue = 0;
	246	GetColourFromGTKWidget(
	247	gdkColor, wxGTK_BUTTON, GTK_STATE_NORMAL, wxGTK_FG);
	248	gs_objects.m_colBtnText = wxColour(gdkColor);
	249	}
	250	color = gs_objects.m_colBtnText;
	251	break;
	252
	253	case wxSYS_COLOUR_INFOBK:
	254	if (!gs_objects.m_colTooltip.Ok()) {
	255	GetTooltipColors();
	256	}
	257	color = gs_objects.m_colTooltip;
	258	break;
	259
	260	case wxSYS_COLOUR_INFOTEXT:
	261	if (!gs_objects.m_colTooltipText.Ok()) {
	262	GetTooltipColors();
	263	}
	264	color = gs_objects.m_colTooltipText;
	265	break;
	266
	267	case wxSYS_COLOUR_HIGHLIGHTTEXT:
	268	if (!gs_objects.m_colHighlightText.Ok())
	269	{
	270	wxColour hclr = GetColour(wxSYS_COLOUR_HIGHLIGHT);
	271	if (hclr.Red() > 200 && hclr.Green() > 200 && hclr.Blue() > 200)
	272	gs_objects.m_colHighlightText = *wxBLACK;
	273	else
	274	gs_objects.m_colHighlightText = *wxWHITE;
	275	}
	276	color = gs_objects.m_colHighlightText;
	277	break;
	278
	279	case wxSYS_COLOUR_APPWORKSPACE:
	280	color = *wxWHITE; // ?
	281	break;
	282
	283	case wxSYS_COLOUR_ACTIVECAPTION:
	284	case wxSYS_COLOUR_MENUHILIGHT:
	285	if (!gs_objects.m_colMenuItemHighlight.Ok())
	286	{
	287	gdkColor.red =
	288	gdkColor.green =
	289	gdkColor.blue = 0;
	290	GetColourFromGTKWidget(
	291	gdkColor, wxGTK_MENUITEM, GTK_STATE_SELECTED, wxGTK_BG);
	292	gs_objects.m_colMenuItemHighlight = wxColour(gdkColor);
	293	}
	294	color = gs_objects.m_colMenuItemHighlight;
	295	break;
	296
	297	case wxSYS_COLOUR_HOTLIGHT:
	298	case wxSYS_COLOUR_GRADIENTACTIVECAPTION:
	299	case wxSYS_COLOUR_GRADIENTINACTIVECAPTION:
	300	// TODO
	301	color = *wxBLACK;
	302	break;
	303
	304	case wxSYS_COLOUR_MAX:
	305	default:
	306	wxFAIL_MSG( _T("unknown system colour index") );
	307	color = *wxWHITE;
	308	break;
	309	}
	310
	311	return color;
	312	}
	313
	314	wxFont wxSystemSettingsNative::GetFont( wxSystemFont index )
	315	{
	316	wxFont font;
	317	switch (index)
	318	{
	319	case wxSYS_OEM_FIXED_FONT:
	320	case wxSYS_ANSI_FIXED_FONT:
	321	case wxSYS_SYSTEM_FIXED_FONT:
	322	font = *wxNORMAL_FONT;
	323	break;
	324
	325	case wxSYS_ANSI_VAR_FONT:
	326	case wxSYS_SYSTEM_FONT:
	327	case wxSYS_DEVICE_DEFAULT_FONT:
	328	case wxSYS_DEFAULT_GUI_FONT:
	329	if (!gs_objects.m_fontSystem.Ok())
	330	{
	331	GtkWidget *widget = gtk_button_new();
	332	GtkStyle *def = gtk_rc_get_style( widget );
	333	if ( !def \|\| !def->font_desc )
	334	def = gtk_widget_get_default_style();
	335	if ( def && def->font_desc )
	336	{
	337	wxNativeFontInfo info;
	338	info.description =
	339	pango_font_description_copy(def->font_desc);
	340	gs_objects.m_fontSystem = wxFont(info);
	341	}
	342	else
	343	{
	344	GtkSettings *settings = gtk_settings_get_default();
	345	gchar *font_name = NULL;
	346	g_object_get ( settings,
	347	"gtk-font-name",
	348	&font_name,
	349	NULL);
	350	if (!font_name)
	351	gs_objects.m_fontSystem = wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
	352	else
	353	gs_objects.m_fontSystem = wxFont(wxString::FromAscii(font_name));
	354	g_free (font_name);
	355	}
	356	gtk_object_sink((GtkObject*)widget);
	357	}
	358	font = gs_objects.m_fontSystem;
	359	break;
	360
	361	default:
	362	break;
	363	}
	364	return font;
	365	}
	366
	367	static bool GetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
	368	{
	369	bool success = false;
	370	Atom property = 0;
	371	#if GTK_CHECK_VERSION(2, 2, 0)
	372	if (gtk_check_version(2, 2, 0) == NULL)
	373	{
	374	if (gdk_x11_screen_supports_net_wm_hint(
	375	gdk_drawable_get_screen(window),
	376	gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
	377	{
	378	success = true;
	379	property = gdk_x11_get_xatom_by_name_for_display(
	380	gdk_drawable_get_display(window),
	381	"_NET_FRAME_EXTENTS");
	382	}
	383	}
	384	else
	385	#endif
	386	{
	387	if (gdk_net_wm_supports(gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
	388	{
	389	success = true;
	390	property = gdk_x11_get_xatom_by_name("_NET_FRAME_EXTENTS");
	391	}
	392	}
	393	if (success)
	394	{
	395	Atom type;
	396	int format;
	397	gulong nitems, bytes_after;
	398	long* data = NULL;
	399	success = XGetWindowProperty(
	400	gdk_x11_drawable_get_xdisplay(window),
	401	gdk_x11_drawable_get_xid(window),
	402	property,
	403	0, 4,
	404	false,
	405	XA_CARDINAL,
	406	&type, &format, &nitems, &bytes_after, (guchar**)&data
	407	) == Success;
	408	if (success)
	409	{
	410	success = data && nitems == 4;
	411	if (success)
	412	{
	413	if (left) *left = int(data[0]);
	414	if (right) *right = int(data[1]);
	415	if (top) *top = int(data[2]);
	416	if (bottom) *bottom = int(data[3]);
	417	}
	418	if (data)
	419	XFree(data);
	420	}
	421	}
	422	return success;
	423	}
	424
	425	int wxSystemSettingsNative::GetMetric( wxSystemMetric index, wxWindow* win )
	426	{
	427	GdkWindow *window = NULL;
	428	if(win && GTK_WIDGET_REALIZED(win->GetHandle()))
	429	window = win->GetHandle()->window;
	430
	431	switch (index)
	432	{
	433	case wxSYS_BORDER_X:
	434	case wxSYS_BORDER_Y:
	435	case wxSYS_EDGE_X:
	436	case wxSYS_EDGE_Y:
	437	case wxSYS_FRAMESIZE_X:
	438	case wxSYS_FRAMESIZE_Y:
	439	// If a window is specified/realized, and it is a toplevel window, we can query from wm.
	440	// The returned border thickness is outside the client area in that case.
	441	if (window)
	442	{
	443	wxTopLevelWindow *tlw = wxDynamicCast(win, wxTopLevelWindow);
	444	if (!tlw)
	445	return -1; // not a tlw, not sure how to approach
	446	else
	447	{
	448	// Get the frame extents from the windowmanager.
	449	// In most cases the top extent is the titlebar, so we use the bottom extent
	450	// for the heights.
	451	int right, bottom;
	452	if (GetFrameExtents(window, NULL, &right, NULL, &bottom))
	453	{
	454	switch (index)
	455	{
	456	case wxSYS_BORDER_X:
	457	case wxSYS_EDGE_X:
	458	case wxSYS_FRAMESIZE_X:
	459	return right; // width of right extent
	460	default:
	461	return bottom; // height of bottom extent
	462	}
	463	}
	464	}
	465	}
	466
	467	return -1; // no window specified
	468
	469	case wxSYS_CURSOR_X:
	470	case wxSYS_CURSOR_Y:
	471	#ifdef __WXGTK24__
	472	if (!gtk_check_version(2,4,0))
	473	{
	474	if (window)
	475	return gdk_display_get_default_cursor_size(gdk_drawable_get_display(window));
	476	else
	477	return gdk_display_get_default_cursor_size(gdk_display_get_default());
	478	}
	479	else
	480	#endif
	481	return 16;
	482
	483	case wxSYS_DCLICK_X:
	484	case wxSYS_DCLICK_Y:
	485	gint dclick_distance;
	486	#if GTK_CHECK_VERSION(2,2,0)
	487	if (window && !gtk_check_version(2,2,0))
	488	g_object_get(gtk_settings_get_for_screen(gdk_drawable_get_screen(window)),
	489	"gtk-double-click-distance", &dclick_distance, NULL);
	490	else
	491	#endif
	492	g_object_get(gtk_settings_get_default(),
	493	"gtk-double-click-distance", &dclick_distance, NULL);
	494
	495	return dclick_distance * 2;
	496
	497	case wxSYS_DRAG_X:
	498	case wxSYS_DRAG_Y:
	499	gint drag_threshold;
	500	#if GTK_CHECK_VERSION(2,2,0)
	501	if (window && !gtk_check_version(2,2,0))
	502	{
	503	g_object_get(
	504	gtk_settings_get_for_screen(gdk_drawable_get_screen(window)),
	505	"gtk-dnd-drag-threshold",
	506	&drag_threshold, NULL);
	507	}
	508	else
	509	#endif
	510	{
	511	g_object_get(gtk_settings_get_default(),
	512	"gtk-dnd-drag-threshold", &drag_threshold, NULL);
	513	}
	514
	515	// The correct thing here would be to double the value
	516	// since that is what the API wants. But the values
	517	// are much bigger under GNOME than under Windows and
	518	// just seem to much in many cases to be useful.
	519	// drag_threshold *= 2;
	520
	521	return drag_threshold;
	522
	523	// MBN: ditto for icons
	524	case wxSYS_ICON_X: return 32;
	525	case wxSYS_ICON_Y: return 32;
	526
	527	case wxSYS_SCREEN_X:
	528	#if GTK_CHECK_VERSION(2,2,0)
	529	if (window && !gtk_check_version(2,2,0))
	530	return gdk_screen_get_width(gdk_drawable_get_screen(window));
	531	else
	532	#endif
	533	return gdk_screen_width();
	534
	535	case wxSYS_SCREEN_Y:
	536	#if GTK_CHECK_VERSION(2,2,0)
	537	if (window && !gtk_check_version(2,2,0))
	538	return gdk_screen_get_height(gdk_drawable_get_screen(window));
	539	else
	540	#endif
	541	return gdk_screen_height();
	542
	543	case wxSYS_HSCROLL_Y: return 15;
	544	case wxSYS_VSCROLL_X: return 15;
	545
	546	case wxSYS_CAPTION_Y:
	547	if (!window)
	548	// No realized window specified, and no implementation for that case yet.
	549	return -1;
	550
	551	wxASSERT_MSG( wxDynamicCast(win, wxTopLevelWindow),
	552	wxT("Asking for caption height of a non toplevel window") );
	553
	554	// Get the height of the top windowmanager border.
	555	// This is the titlebar in most cases. The titlebar might be elsewhere, and
	556	// we could check which is the thickest wm border to decide on which side the
	557	// titlebar is, but this might lead to interesting behaviours in used code.
	558	// Reconsider when we have a way to report to the user on which side it is.
	559	{
	560	int top;
	561	if (GetFrameExtents(window, NULL, NULL, &top, NULL))
	562	{
	563	return top; // top frame extent
	564	}
	565	}
	566
	567	// Try a default approach without a window pointer, if possible
	568	// ...
	569
	570	return -1;
	571
	572	case wxSYS_PENWINDOWS_PRESENT:
	573	// No MS Windows for Pen computing extension available in X11 based gtk+.
	574	return 0;
	575
	576	default:
	577	return -1; // metric is unknown
	578	}
	579	}
	580
	581	bool wxSystemSettingsNative::HasFeature(wxSystemFeature index)
	582	{
	583	switch (index)
	584	{
	585	case wxSYS_CAN_ICONIZE_FRAME:
	586	return false;
	587
	588	case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
	589	return true;
	590
	591	default:
	592	return false;
	593	}
	594	}