src/gtk1/settings.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/gtk1/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 <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(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:
        case wxSYS_COLOUR_LISTBOXTEXT:
            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())
            {
                gs_objects.m_fontSystem = wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
            }
            return gs_objects.m_fontSystem;
        }

        default:
            return wxNullFont;
    }
}

int
wxSystemSettingsNative::GetMetric(wxSystemMetric index, wxWindow* WXUNUSED(win))
{
    switch (index)
    {
        case wxSYS_CURSOR_X:
        case wxSYS_CURSOR_Y:
            return 16;

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

        case wxSYS_SCREEN_X:
            return gdk_screen_width();

        case wxSYS_SCREEN_Y:
            return gdk_screen_height();

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

// a gtk1 implementation should be possible too if gtk2 efficiency/convenience functions aren't used
#if 0
        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;
#endif // gtk2

        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/gtk1/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 <gdk/gdk.h>
	24	#include <gdk/gdkx.h>
	25	#include <gdk/gdkprivate.h>
	26	#include <gtk/gtk.h>
	27
	28	#include <X11/Xatom.h>
	29
	30	#define SHIFT (8*(sizeof(short int)-sizeof(char)))
	31
	32	// ----------------------------------------------------------------------------
	33	// wxSystemObjects
	34	// ----------------------------------------------------------------------------
	35
	36	struct wxSystemObjects
	37	{
	38	wxColour m_colBtnFace,
	39	m_colBtnShadow,
	40	m_colBtnHighlight,
	41	m_colHighlight,
	42	m_colHighlightText,
	43	m_colListBox,
	44	m_colBtnText,
	45	m_colMenuItemHighlight,
	46	m_colTooltip,
	47	m_colTooltipText;
	48
	49	wxFont m_fontSystem;
	50	};
	51
	52	static wxSystemObjects gs_objects;
	53
	54	// ----------------------------------------------------------------------------
	55	// wxSystemSettings implementation
	56	// ----------------------------------------------------------------------------
	57
	58	// kind of widget to use in GetColourFromGTKWidget
	59	enum wxGtkWidgetType
	60	{
	61	wxGTK_BUTTON,
	62	wxGTK_LIST,
	63	wxGTK_MENUITEM
	64	};
	65
	66	// the colour we need
	67	enum wxGtkColourType
	68	{
	69	wxGTK_FG,
	70	wxGTK_BG,
	71	wxGTK_BASE
	72	};
	73
	74	// wxSystemSettings::GetColour() helper: get the colours from a GTK+
	75	// widget style, return true if we did get them, false to use defaults
	76	static bool GetColourFromGTKWidget(int& red, int& green, int& blue,
	77	wxGtkWidgetType type = wxGTK_BUTTON,
	78	GtkStateType state = GTK_STATE_NORMAL,
	79	wxGtkColourType colour = wxGTK_BG)
	80	{
	81	GtkWidget *widget;
	82	switch ( type )
	83	{
	84	default:
	85	wxFAIL_MSG( _T("unexpected GTK widget type") );
	86	// fall through
	87
	88	case wxGTK_BUTTON:
	89	widget = gtk_button_new();
	90	break;
	91
	92	case wxGTK_LIST:
	93	widget = gtk_list_new();
	94	break;
	95
	96	case wxGTK_MENUITEM:
	97	widget = gtk_menu_item_new();
	98	}
	99
	100	GtkStyle *def = gtk_rc_get_style( widget );
	101	if ( !def )
	102	def = gtk_widget_get_default_style();
	103
	104	bool ok;
	105	if ( def )
	106	{
	107	GdkColor *col;
	108	switch ( colour )
	109	{
	110	default:
	111	wxFAIL_MSG( _T("unexpected GTK colour type") );
	112	// fall through
	113
	114	case wxGTK_FG:
	115	col = def->fg;
	116	break;
	117
	118	case wxGTK_BG:
	119	col = def->bg;
	120	break;
	121
	122	case wxGTK_BASE:
	123	col = def->base;
	124	break;
	125	}
	126
	127	red = col[state].red;
	128	green = col[state].green;
	129	blue = col[state].blue;
	130
	131	ok = true;
	132	}
	133	else
	134	{
	135	ok = false;
	136	}
	137
	138	gtk_widget_destroy( widget );
	139
	140	return ok;
	141	}
	142
	143	static void GetTooltipColors()
	144	{
	145	GtkTooltips* tooltips = gtk_tooltips_new();
	146	gtk_tooltips_force_window(tooltips);
	147	gtk_widget_ensure_style(tooltips->tip_window);
	148	GdkColor c = tooltips->tip_window->style->bg[GTK_STATE_NORMAL];
	149	gs_objects.m_colTooltip = wxColor(c.red >> SHIFT, c.green >> SHIFT, c.blue >> SHIFT);
	150	c = tooltips->tip_window->style->fg[GTK_STATE_NORMAL];
	151	gs_objects.m_colTooltipText = wxColor(c.red >> SHIFT, c.green >> SHIFT, c.blue >> SHIFT);
	152	gtk_object_sink(reinterpret_cast<GtkObject*>(tooltips));
	153	}
	154
	155	wxColour wxSystemSettingsNative::GetColour( wxSystemColour index )
	156	{
	157	switch (index)
	158	{
	159	case wxSYS_COLOUR_SCROLLBAR:
	160	case wxSYS_COLOUR_BACKGROUND:
	161	case wxSYS_COLOUR_INACTIVECAPTION:
	162	case wxSYS_COLOUR_MENU:
	163	case wxSYS_COLOUR_WINDOWFRAME:
	164	case wxSYS_COLOUR_ACTIVEBORDER:
	165	case wxSYS_COLOUR_INACTIVEBORDER:
	166	case wxSYS_COLOUR_BTNFACE:
	167	case wxSYS_COLOUR_MENUBAR:
	168	case wxSYS_COLOUR_3DLIGHT:
	169	if (!gs_objects.m_colBtnFace.Ok())
	170	{
	171	int red, green, blue;
	172	if ( !GetColourFromGTKWidget(red, green, blue) )
	173	{
	174	red =
	175	green = 0;
	176	blue = 0x9c40;
	177	}
	178
	179	gs_objects.m_colBtnFace = wxColour( red >> SHIFT,
	180	green >> SHIFT,
	181	blue >> SHIFT );
	182	}
	183	return gs_objects.m_colBtnFace;
	184
	185	case wxSYS_COLOUR_WINDOW:
	186	return *wxWHITE;
	187
	188	case wxSYS_COLOUR_3DDKSHADOW:
	189	return *wxBLACK;
	190
	191	case wxSYS_COLOUR_GRAYTEXT:
	192	case wxSYS_COLOUR_BTNSHADOW:
	193	//case wxSYS_COLOUR_3DSHADOW:
	194	if (!gs_objects.m_colBtnShadow.Ok())
	195	{
	196	wxColour faceColour(GetColour(wxSYS_COLOUR_3DFACE));
	197	gs_objects.m_colBtnShadow =
	198	wxColour((unsigned char) (faceColour.Red() * 0.666),
	199	(unsigned char) (faceColour.Green() * 0.666),
	200	(unsigned char) (faceColour.Blue() * 0.666));
	201	}
	202
	203	return gs_objects.m_colBtnShadow;
	204
	205	case wxSYS_COLOUR_3DHIGHLIGHT:
	206	//case wxSYS_COLOUR_BTNHIGHLIGHT:
	207	return * wxWHITE;
	208
	209	case wxSYS_COLOUR_HIGHLIGHT:
	210	if (!gs_objects.m_colHighlight.Ok())
	211	{
	212	int red, green, blue;
	213	if ( !GetColourFromGTKWidget(red, green, blue,
	214	wxGTK_BUTTON,
	215	GTK_STATE_SELECTED) )
	216	{
	217	red =
	218	green = 0;
	219	blue = 0x9c40;
	220	}
	221
	222	gs_objects.m_colHighlight = wxColour( red >> SHIFT,
	223	green >> SHIFT,
	224	blue >> SHIFT );
	225	}
	226	return gs_objects.m_colHighlight;
	227
	228	case wxSYS_COLOUR_LISTBOX:
	229	if (!gs_objects.m_colListBox.Ok())
	230	{
	231	int red, green, blue;
	232	if ( GetColourFromGTKWidget(red, green, blue,
	233	wxGTK_LIST,
	234	GTK_STATE_NORMAL,
	235	wxGTK_BASE) )
	236	{
	237	gs_objects.m_colListBox = wxColour( red >> SHIFT,
	238	green >> SHIFT,
	239	blue >> SHIFT );
	240	}
	241	else
	242	{
	243	gs_objects.m_colListBox = wxColour(*wxWHITE);
	244	}
	245	}
	246	return gs_objects.m_colListBox;
	247
	248	case wxSYS_COLOUR_MENUTEXT:
	249	case wxSYS_COLOUR_WINDOWTEXT:
	250	case wxSYS_COLOUR_CAPTIONTEXT:
	251	case wxSYS_COLOUR_INACTIVECAPTIONTEXT:
	252	case wxSYS_COLOUR_BTNTEXT:
	253	case wxSYS_COLOUR_LISTBOXTEXT:
	254	if (!gs_objects.m_colBtnText.Ok())
	255	{
	256	int red, green, blue;
	257	if ( !GetColourFromGTKWidget(red, green, blue,
	258	wxGTK_BUTTON,
	259	GTK_STATE_NORMAL,
	260	wxGTK_FG) )
	261	{
	262	red =
	263	green =
	264	blue = 0;
	265	}
	266
	267	gs_objects.m_colBtnText = wxColour( red >> SHIFT,
	268	green >> SHIFT,
	269	blue >> SHIFT );
	270	}
	271	return gs_objects.m_colBtnText;
	272
	273	case wxSYS_COLOUR_INFOBK:
	274	if (!gs_objects.m_colTooltip.Ok()) {
	275	GetTooltipColors();
	276	}
	277	return gs_objects.m_colTooltip;
	278
	279	case wxSYS_COLOUR_INFOTEXT:
	280	if (!gs_objects.m_colTooltipText.Ok()) {
	281	GetTooltipColors();
	282	}
	283	return gs_objects.m_colTooltipText;
	284
	285	case wxSYS_COLOUR_HIGHLIGHTTEXT:
	286	if (!gs_objects.m_colHighlightText.Ok())
	287	{
	288	wxColour hclr = GetColour(wxSYS_COLOUR_HIGHLIGHT);
	289	if (hclr.Red() > 200 && hclr.Green() > 200 && hclr.Blue() > 200)
	290	gs_objects.m_colHighlightText = wxColour(*wxBLACK);
	291	else
	292	gs_objects.m_colHighlightText = wxColour(*wxWHITE);
	293	}
	294	return gs_objects.m_colHighlightText;
	295
	296	case wxSYS_COLOUR_APPWORKSPACE:
	297	return *wxWHITE; // ?
	298
	299	case wxSYS_COLOUR_ACTIVECAPTION:
	300	case wxSYS_COLOUR_MENUHILIGHT:
	301	if (!gs_objects.m_colMenuItemHighlight.Ok())
	302	{
	303	int red, green, blue;
	304	if ( !GetColourFromGTKWidget(red, green, blue,
	305	wxGTK_MENUITEM,
	306	GTK_STATE_SELECTED,
	307	wxGTK_BG) )
	308	{
	309	red =
	310	green =
	311	blue = 0;
	312	}
	313
	314	gs_objects.m_colMenuItemHighlight = wxColour( red >> SHIFT,
	315	green >> SHIFT,
	316	blue >> SHIFT );
	317	}
	318	return gs_objects.m_colMenuItemHighlight;
	319
	320	case wxSYS_COLOUR_HOTLIGHT:
	321	case wxSYS_COLOUR_GRADIENTACTIVECAPTION:
	322	case wxSYS_COLOUR_GRADIENTINACTIVECAPTION:
	323	// TODO
	324	return *wxBLACK;
	325
	326	case wxSYS_COLOUR_MAX:
	327	default:
	328	wxFAIL_MSG( _T("unknown system colour index") );
	329	}
	330
	331	return *wxWHITE;
	332	}
	333
	334	wxFont wxSystemSettingsNative::GetFont( wxSystemFont index )
	335	{
	336	switch (index)
	337	{
	338	case wxSYS_OEM_FIXED_FONT:
	339	case wxSYS_ANSI_FIXED_FONT:
	340	case wxSYS_SYSTEM_FIXED_FONT:
	341	{
	342	return *wxNORMAL_FONT;
	343	}
	344	case wxSYS_ANSI_VAR_FONT:
	345	case wxSYS_SYSTEM_FONT:
	346	case wxSYS_DEVICE_DEFAULT_FONT:
	347	case wxSYS_DEFAULT_GUI_FONT:
	348	{
	349	if (!gs_objects.m_fontSystem.Ok())
	350	{
	351	gs_objects.m_fontSystem = wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
	352	}
	353	return gs_objects.m_fontSystem;
	354	}
	355
	356	default:
	357	return wxNullFont;
	358	}
	359	}
	360
	361	int
	362	wxSystemSettingsNative::GetMetric(wxSystemMetric index, wxWindow* WXUNUSED(win))
	363	{
	364	switch (index)
	365	{
	366	case wxSYS_CURSOR_X:
	367	case wxSYS_CURSOR_Y:
	368	return 16;
	369
	370	// MBN: ditto for icons
	371	case wxSYS_ICON_X: return 32;
	372	case wxSYS_ICON_Y: return 32;
	373
	374	case wxSYS_SCREEN_X:
	375	return gdk_screen_width();
	376
	377	case wxSYS_SCREEN_Y:
	378	return gdk_screen_height();
	379
	380	case wxSYS_HSCROLL_Y: return 15;
	381	case wxSYS_VSCROLL_X: return 15;
	382
	383	// a gtk1 implementation should be possible too if gtk2 efficiency/convenience functions aren't used
	384	#if 0
	385	case wxSYS_CAPTION_Y:
	386	if (!window)
	387	// No realized window specified, and no implementation for that case yet.
	388	return -1;
	389
	390	// Check if wm supports frame extents - we can't know the caption height if it does not.
	391	#if GTK_CHECK_VERSION(2,2,0)
	392	if (!gtk_check_version(2,2,0))
	393	{
	394	if (!gdk_x11_screen_supports_net_wm_hint(
	395	gdk_drawable_get_screen(window),
	396	gdk_atom_intern("_NET_FRAME_EXTENTS", false) ) )
	397	return -1;
	398	}
	399	else
	400	#endif
	401	{
	402	if (!gdk_net_wm_supports(gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
	403	return -1;
	404	}
	405
	406	wxASSERT_MSG( wxDynamicCast(win, wxTopLevelWindow),
	407	wxT("Asking for caption height of a non toplevel window") );
	408
	409	// Get the height of the top windowmanager border.
	410	// This is the titlebar in most cases. The titlebar might be elsewhere, and
	411	// we could check which is the thickest wm border to decide on which side the
	412	// titlebar is, but this might lead to interesting behaviours in used code.
	413	// Reconsider when we have a way to report to the user on which side it is.
	414
	415	Atom type;
	416	gint format;
	417	gulong nitems;
	418
	419	#if GTK_CHECK_VERSION(2,2,0)
	420	if (!gtk_check_version(2,2,0))
	421	{
	422	gulong bytes_after;
	423	success = (XGetWindowProperty (GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(window)),
	424	GDK_WINDOW_XWINDOW(window),
	425	gdk_x11_get_xatom_by_name_for_display (
	426	gdk_drawable_get_display(window),
	427	"_NET_FRAME_EXTENTS" ),
	428	0, // left, right, top, bottom, CARDINAL[4]/32
	429	G_MAXLONG, // size of long
	430	false, // do not delete property
	431	XA_CARDINAL, // 32 bit
	432	&type, &format, &nitems, &bytes_after, &data
	433	) == Success);
	434	}
	435	#endif
	436	if (success)
	437	{
	438	int caption_height = -1;
	439
	440	if ((type == XA_CARDINAL) && (format == 32) && (nitems >= 3) && (data))
	441	{
	442	long *borders;
	443	borders = (long*)data;
	444	caption_height = borders[2]; // top frame extent
	445	}
	446
	447	if (data)
	448	XFree(data);
	449
	450	return caption_height;
	451	}
	452
	453	// Try a default approach without a window pointer, if possible
	454	// ...
	455
	456	return -1;
	457	#endif // gtk2
	458
	459	case wxSYS_PENWINDOWS_PRESENT:
	460	// No MS Windows for Pen computing extension available in X11 based gtk+.
	461	return 0;
	462
	463	default:
	464	return -1; // metric is unknown
	465	}
	466	}
	467
	468	bool wxSystemSettingsNative::HasFeature(wxSystemFeature index)
	469	{
	470	switch (index)
	471	{
	472	case wxSYS_CAN_ICONIZE_FRAME:
	473	return false;
	474
	475	case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
	476	return true;
	477
	478	default:
	479	return false;
	480	}
	481	}