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>

bool wxGetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom);

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

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

    wxFont m_fontSystem;
};

static wxSystemObjects gs_objects;

void wxClearGtkSystemObjects()
{
    gs_objects.m_colBtnFace = wxColour();
    gs_objects.m_colBtnShadow = wxColour();
    gs_objects.m_colBtnHighlight = wxColour();
    gs_objects.m_colHighlightText = wxColour();
    gs_objects.m_colListBox = wxColour();
    gs_objects.m_colWindow = wxColour();
    gs_objects.m_colWindowText = wxColour();
    gs_objects.m_colBtnText = wxColour();
    gs_objects.m_colMenuItemHighlight = wxColour();
    gs_objects.m_colTooltip = wxColour();
    gs_objects.m_colTooltipText = wxColour();
    gs_objects.m_colMenubarBg = wxColour();
    gs_objects.m_fontSystem = wxNullFont;
}

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

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

// 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_TEXTCTRL:
            widget = gtk_text_view_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();
            break;

        case wxGTK_MENUBAR:
            widget = gtk_menu_bar_new();
            break;
    }

    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_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:
            if (!gs_objects.m_colWindow.Ok())
            {
                gdkColor.red =
                gdkColor.green =
                gdkColor.blue = 0xFFFF;
                GetColourFromGTKWidget(gdkColor, wxGTK_TEXTCTRL, GTK_STATE_NORMAL, wxGTK_BASE);
                gs_objects.m_colWindow = wxColor(gdkColor);
            }
            color = gs_objects.m_colWindow;
            break;


        case wxSYS_COLOUR_MENUBAR:
            if (!gs_objects.m_colMenubarBg.Ok())
            {
                gdkColor.red =
                gdkColor.green = 0;
                gdkColor.blue = 0x9c40;
                GetColourFromGTKWidget(gdkColor,wxGTK_MENUBAR);
                gs_objects.m_colMenubarBg = wxColor(gdkColor);
            }
            color = gs_objects.m_colMenubarBg;
            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;
}

// helper: return the GtkSettings either for the screen the current window is
// on or for the default screen if window is NULL
static GtkSettings *GetSettingsForWindowScreen(GdkWindow *window)
{
    return window ? gtk_settings_get_for_screen(gdk_drawable_get_screen(window))
                  : gtk_settings_get_default();
}

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 (wxGetFrameExtents(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:
                return gdk_display_get_default_cursor_size(
                            window ? gdk_drawable_get_display(window)
                                   : gdk_display_get_default());

        case wxSYS_DCLICK_X:
        case wxSYS_DCLICK_Y:
            gint dclick_distance;
            g_object_get(GetSettingsForWindowScreen(window),
                            "gtk-double-click-distance", &dclick_distance, NULL);

            return dclick_distance * 2;

        case wxSYS_DCLICK_MSEC:
            gint dclick;
            g_object_get(GetSettingsForWindowScreen(window),
                            "gtk-double-click-time", &dclick, NULL);
            return dclick;

        case wxSYS_DRAG_X:
        case wxSYS_DRAG_Y:
            gint drag_threshold;
            g_object_get(GetSettingsForWindowScreen(window),
                            "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;

        case wxSYS_ICON_X:
        case wxSYS_ICON_Y:
            return 32;

        case wxSYS_SCREEN_X:
            if (window)
                return gdk_screen_get_width(gdk_drawable_get_screen(window));
            else
                return gdk_screen_width();

        case wxSYS_SCREEN_Y:
            if (window)
                return gdk_screen_get_height(gdk_drawable_get_screen(window));
            else
                return gdk_screen_height();

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