src/gtk/artgtk.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        artstd.cpp
// Purpose:     stock wxArtProvider instance with native GTK+ stock icons
// Author:      Vaclav Slavik
// Modified by:
// Created:     2004-08-22
// RCS-ID:      $Id$
// Copyright:   (c) Vaclav Slavik, 2004
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ---------------------------------------------------------------------------
// headers
// ---------------------------------------------------------------------------

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

#if defined(__BORLANDC__)
    #pragma hdrstop
#endif

#if defined(__WXGTK20__) && !defined(__WXUNIVERSAL__)

#include "wx/artprov.h"

#include <gtk/gtk.h>

// compatibility with older GTK+ versions:
#ifndef GTK_STOCK_FILE
    #define GTK_STOCK_FILE "gtk-file"
#endif
#ifndef GTK_STOCK_DIRECTORY
    #define GTK_STOCK_DIRECTORY "gtk-directory"
#endif


// ----------------------------------------------------------------------------
// wxGTK2ArtProvider
// ----------------------------------------------------------------------------

class wxGTK2ArtProvider : public wxArtProvider
{
protected:
    virtual wxBitmap CreateBitmap(const wxArtID& id, const wxArtClient& client,
                                  const wxSize& size);
};

/*static*/ void wxArtProvider::InitNativeProvider()
{
    wxArtProvider::PushProvider(new wxGTK2ArtProvider);
}

// ----------------------------------------------------------------------------
// CreateBitmap routine
// ----------------------------------------------------------------------------

static const char *wxArtIDToStock(const wxArtID& id)
{
    #define ART(wxid, gtkid) \
           if (id == wxid) return gtkid;

    ART(wxART_ERROR,                               GTK_STOCK_DIALOG_ERROR)
    ART(wxART_INFORMATION,                         GTK_STOCK_DIALOG_INFO)
    ART(wxART_WARNING,                             GTK_STOCK_DIALOG_WARNING)
    ART(wxART_QUESTION,                            GTK_STOCK_DIALOG_QUESTION)

    //ART(wxART_HELP_SIDE_PANEL,                     )
    ART(wxART_HELP_SETTINGS,                       GTK_STOCK_SELECT_FONT)
    //ART(wxART_HELP_BOOK,                           )
    ART(wxART_HELP_FOLDER,                         GTK_STOCK_DIRECTORY)
    ART(wxART_HELP_PAGE,                           GTK_STOCK_FILE)
    ART(wxART_MISSING_IMAGE,                       GTK_STOCK_MISSING_IMAGE)
    ART(wxART_ADD_BOOKMARK,                        GTK_STOCK_ADD)
    ART(wxART_DEL_BOOKMARK,                        GTK_STOCK_REMOVE)
    ART(wxART_GO_BACK,                             GTK_STOCK_GO_BACK)
    ART(wxART_GO_FORWARD,                          GTK_STOCK_GO_FORWARD)
    ART(wxART_GO_UP,                               GTK_STOCK_GO_UP)
    ART(wxART_GO_DOWN,                             GTK_STOCK_GO_DOWN)
    ART(wxART_GO_TO_PARENT,                        GTK_STOCK_GO_UP)
    ART(wxART_GO_HOME,                             GTK_STOCK_HOME)
    ART(wxART_FILE_OPEN,                           GTK_STOCK_OPEN)
    ART(wxART_PRINT,                               GTK_STOCK_PRINT)
    ART(wxART_HELP,                                GTK_STOCK_HELP)
    ART(wxART_TIP,                                 GTK_STOCK_DIALOG_INFO)
    //ART(wxART_REPORT_VIEW,                         )
    //ART(wxART_LIST_VIEW,                           )
    //ART(wxART_NEW_DIR,                             )
    ART(wxART_FOLDER,                              GTK_STOCK_DIRECTORY)
    //ART(wxART_GO_DIR_UP,                           )
    ART(wxART_EXECUTABLE_FILE,                     GTK_STOCK_EXECUTE)
    ART(wxART_NORMAL_FILE,                         GTK_STOCK_FILE)
    ART(wxART_TICK_MARK,                           GTK_STOCK_APPLY)
    ART(wxART_CROSS_MARK,                          GTK_STOCK_CANCEL)

    return NULL;

    #undef ART
}

static GtkIconSize wxArtClientToIconSize(const wxArtClient& client)
{
    if (client == wxART_TOOLBAR)
        return GTK_ICON_SIZE_LARGE_TOOLBAR;
    else if (client == wxART_MENU)
        return GTK_ICON_SIZE_MENU;
    else if (client == wxART_CMN_DIALOG || client == wxART_MESSAGE_BOX)
        return GTK_ICON_SIZE_DIALOG;
    else if (client == wxART_BUTTON)
        return GTK_ICON_SIZE_BUTTON;
    else
        return GTK_ICON_SIZE_BUTTON; // this is arbitrary
}

static GtkIconSize FindClosestIconSize(const wxSize& size)
{
    #define NUM_SIZES 6
    static struct
    {
        GtkIconSize icon;
        gint x, y;
    } s_sizes[NUM_SIZES];
    static bool s_sizesInitialized = false;

    if (!s_sizesInitialized)
    {
        s_sizes[0].icon = GTK_ICON_SIZE_MENU;
        s_sizes[1].icon = GTK_ICON_SIZE_SMALL_TOOLBAR;
        s_sizes[2].icon = GTK_ICON_SIZE_LARGE_TOOLBAR;
        s_sizes[3].icon = GTK_ICON_SIZE_BUTTON;
        s_sizes[4].icon = GTK_ICON_SIZE_DND;
        s_sizes[5].icon = GTK_ICON_SIZE_DIALOG;
        for (size_t i = 0; i < NUM_SIZES; i++)
        {
            gtk_icon_size_lookup(s_sizes[i].icon,
                                 &s_sizes[i].x, &s_sizes[i].y);
        }
        s_sizesInitialized = true;
    }

    GtkIconSize best = GTK_ICON_SIZE_DIALOG; // presumably largest
    unsigned distance = INT_MAX;
    for (size_t i = 0; i < NUM_SIZES; i++)
    {
        // only use larger bitmaps, scaling down looks better than scaling up:
        if (size.x > s_sizes[i].x || size.y > s_sizes[i].y)
            continue;

        unsigned dist = (size.x - s_sizes[i].x) * (size.x - s_sizes[i].x) +
                        (size.y - s_sizes[i].y) * (size.y - s_sizes[i].y);
        if (dist == 0)
            return s_sizes[i].icon;
        else if (dist < distance)
        {
            distance = dist;
            best = s_sizes[i].icon;
        }
    }
    return best;
}

static GdkPixbuf *CreateStockIcon(const char *stockid, GtkIconSize size)
{
    // FIXME: This code is not 100% correct, because stock pixmap are
    //        context-dependent and may be affected by theme engine, the
    //        correct value can only be obtained for given GtkWidget object.
    //
    //        Fool-proof implementation of stock bitmaps would extend wxBitmap
    //        with "stock-id" representation (in addition to pixmap and pixbuf
    //        ones) and would convert it to pixbuf when rendered.

    GtkStyle *style = gtk_widget_get_default_style();
    GtkIconSet *iconset = gtk_style_lookup_icon_set(style, stockid);

    if (!iconset)
        return NULL;

    return gtk_icon_set_render_icon(iconset, style,
                                    gtk_widget_get_default_direction(),
                                    GTK_STATE_NORMAL, size, NULL, NULL);
}

#if GTK_CHECK_VERSION(2,4,0)
static GdkPixbuf *CreateThemeIcon(const char *iconname,
                                  GtkIconSize iconsize, const wxSize& sz)
{
    wxSize size(sz);
    if (size == wxDefaultSize)
    {
        gtk_icon_size_lookup(iconsize, &size.x, &size.y);
    }

    return gtk_icon_theme_load_icon(
                    gtk_icon_theme_get_default(),
                    iconname,
                    size.x,
                    (GtkIconLookupFlags)0, NULL);
}
#endif // GTK+ >= 2.4.0

wxBitmap wxGTK2ArtProvider::CreateBitmap(const wxArtID& id,
                                         const wxArtClient& client,
                                         const wxSize& size)
{
    wxCharBuffer stockid = wxArtIDToStock(id);
    GtkIconSize stocksize = (size == wxDefaultSize) ?
                                wxArtClientToIconSize(client) :
                                FindClosestIconSize(size);

    // allow passing GTK+ stock IDs to wxArtProvider:
    if (!stockid)
        stockid = id.ToAscii();

    GdkPixbuf *pixbuf = CreateStockIcon(stockid, stocksize);

#if GTK_CHECK_VERSION(2,4,0)
    if (!pixbuf)
        pixbuf = CreateThemeIcon(stockid, stocksize, size);
#endif

    if (pixbuf && size != wxDefaultSize &&
        (size.x != gdk_pixbuf_get_width(pixbuf) ||
         size.y != gdk_pixbuf_get_height(pixbuf)))
    {
        GdkPixbuf *p2 = gdk_pixbuf_scale_simple(pixbuf, size.x, size.y,
                                                GDK_INTERP_BILINEAR);
        if (p2)
        {
            gdk_pixbuf_unref(pixbuf);
            pixbuf = p2;
        }
    }

    if (!pixbuf)
        return wxNullBitmap;

    wxBitmap bmp;
    bmp.SetWidth(gdk_pixbuf_get_width(pixbuf));
    bmp.SetHeight(gdk_pixbuf_get_height(pixbuf));
    bmp.SetPixbuf(pixbuf);

    return bmp;
}

#endif // defined(__WXGTK20__) && !defined(__WXUNIVERSAL__)
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: artstd.cpp
	3	// Purpose: stock wxArtProvider instance with native GTK+ stock icons
	4	// Author: Vaclav Slavik
	5	// Modified by:
	6	// Created: 2004-08-22
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Vaclav Slavik, 2004
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	// ---------------------------------------------------------------------------
	13	// headers
	14	// ---------------------------------------------------------------------------
	15
	16	// For compilers that support precompilation, includes "wx.h".
	17	#include "wx/wxprec.h"
	18
	19	#if defined(__BORLANDC__)
	20	#pragma hdrstop
	21	#endif
	22
	23	#if defined(__WXGTK20__) && !defined(__WXUNIVERSAL__)
	24
	25	#include "wx/artprov.h"
	26
	27	#include <gtk/gtk.h>
	28
	29	// compatibility with older GTK+ versions:
	30	#ifndef GTK_STOCK_FILE
	31	#define GTK_STOCK_FILE "gtk-file"
	32	#endif
	33	#ifndef GTK_STOCK_DIRECTORY
	34	#define GTK_STOCK_DIRECTORY "gtk-directory"
	35	#endif
	36
	37
	38	// ----------------------------------------------------------------------------
	39	// wxGTK2ArtProvider
	40	// ----------------------------------------------------------------------------
	41
	42	class wxGTK2ArtProvider : public wxArtProvider
	43	{
	44	protected:
	45	virtual wxBitmap CreateBitmap(const wxArtID& id, const wxArtClient& client,
	46	const wxSize& size);
	47	};
	48
	49	/static/ void wxArtProvider::InitNativeProvider()
	50	{
	51	wxArtProvider::PushProvider(new wxGTK2ArtProvider);
	52	}
	53
	54	// ----------------------------------------------------------------------------
	55	// CreateBitmap routine
	56	// ----------------------------------------------------------------------------
	57
	58	static const char *wxArtIDToStock(const wxArtID& id)
	59	{
	60	#define ART(wxid, gtkid) \
	61	if (id == wxid) return gtkid;
	62
	63	ART(wxART_ERROR, GTK_STOCK_DIALOG_ERROR)
	64	ART(wxART_INFORMATION, GTK_STOCK_DIALOG_INFO)
	65	ART(wxART_WARNING, GTK_STOCK_DIALOG_WARNING)
	66	ART(wxART_QUESTION, GTK_STOCK_DIALOG_QUESTION)
	67
	68	//ART(wxART_HELP_SIDE_PANEL, )
	69	ART(wxART_HELP_SETTINGS, GTK_STOCK_SELECT_FONT)
	70	//ART(wxART_HELP_BOOK, )
	71	ART(wxART_HELP_FOLDER, GTK_STOCK_DIRECTORY)
	72	ART(wxART_HELP_PAGE, GTK_STOCK_FILE)
	73	ART(wxART_MISSING_IMAGE, GTK_STOCK_MISSING_IMAGE)
	74	ART(wxART_ADD_BOOKMARK, GTK_STOCK_ADD)
	75	ART(wxART_DEL_BOOKMARK, GTK_STOCK_REMOVE)
	76	ART(wxART_GO_BACK, GTK_STOCK_GO_BACK)
	77	ART(wxART_GO_FORWARD, GTK_STOCK_GO_FORWARD)
	78	ART(wxART_GO_UP, GTK_STOCK_GO_UP)
	79	ART(wxART_GO_DOWN, GTK_STOCK_GO_DOWN)
	80	ART(wxART_GO_TO_PARENT, GTK_STOCK_GO_UP)
	81	ART(wxART_GO_HOME, GTK_STOCK_HOME)
	82	ART(wxART_FILE_OPEN, GTK_STOCK_OPEN)
	83	ART(wxART_PRINT, GTK_STOCK_PRINT)
	84	ART(wxART_HELP, GTK_STOCK_HELP)
	85	ART(wxART_TIP, GTK_STOCK_DIALOG_INFO)
	86	//ART(wxART_REPORT_VIEW, )
	87	//ART(wxART_LIST_VIEW, )
	88	//ART(wxART_NEW_DIR, )
	89	ART(wxART_FOLDER, GTK_STOCK_DIRECTORY)
	90	//ART(wxART_GO_DIR_UP, )
	91	ART(wxART_EXECUTABLE_FILE, GTK_STOCK_EXECUTE)
	92	ART(wxART_NORMAL_FILE, GTK_STOCK_FILE)
	93	ART(wxART_TICK_MARK, GTK_STOCK_APPLY)
	94	ART(wxART_CROSS_MARK, GTK_STOCK_CANCEL)
	95
	96	return NULL;
	97
	98	#undef ART
	99	}
	100
	101	static GtkIconSize wxArtClientToIconSize(const wxArtClient& client)
	102	{
	103	if (client == wxART_TOOLBAR)
	104	return GTK_ICON_SIZE_LARGE_TOOLBAR;
	105	else if (client == wxART_MENU)
	106	return GTK_ICON_SIZE_MENU;
	107	else if (client == wxART_CMN_DIALOG \|\| client == wxART_MESSAGE_BOX)
	108	return GTK_ICON_SIZE_DIALOG;
	109	else if (client == wxART_BUTTON)
	110	return GTK_ICON_SIZE_BUTTON;
	111	else
	112	return GTK_ICON_SIZE_BUTTON; // this is arbitrary
	113	}
	114
	115	static GtkIconSize FindClosestIconSize(const wxSize& size)
	116	{
	117	#define NUM_SIZES 6
	118	static struct
	119	{
	120	GtkIconSize icon;
	121	gint x, y;
	122	} s_sizes[NUM_SIZES];
	123	static bool s_sizesInitialized = false;
	124
	125	if (!s_sizesInitialized)
	126	{
	127	s_sizes[0].icon = GTK_ICON_SIZE_MENU;
	128	s_sizes[1].icon = GTK_ICON_SIZE_SMALL_TOOLBAR;
	129	s_sizes[2].icon = GTK_ICON_SIZE_LARGE_TOOLBAR;
	130	s_sizes[3].icon = GTK_ICON_SIZE_BUTTON;
	131	s_sizes[4].icon = GTK_ICON_SIZE_DND;
	132	s_sizes[5].icon = GTK_ICON_SIZE_DIALOG;
	133	for (size_t i = 0; i < NUM_SIZES; i++)
	134	{
	135	gtk_icon_size_lookup(s_sizes[i].icon,
	136	&s_sizes[i].x, &s_sizes[i].y);
	137	}
	138	s_sizesInitialized = true;
	139	}
	140
	141	GtkIconSize best = GTK_ICON_SIZE_DIALOG; // presumably largest
	142	unsigned distance = INT_MAX;
	143	for (size_t i = 0; i < NUM_SIZES; i++)
	144	{
	145	// only use larger bitmaps, scaling down looks better than scaling up:
	146	if (size.x > s_sizes[i].x \|\| size.y > s_sizes[i].y)
	147	continue;
	148
	149	unsigned dist = (size.x - s_sizes[i].x) * (size.x - s_sizes[i].x) +
	150	(size.y - s_sizes[i].y) * (size.y - s_sizes[i].y);
	151	if (dist == 0)
	152	return s_sizes[i].icon;
	153	else if (dist < distance)
	154	{
	155	distance = dist;
	156	best = s_sizes[i].icon;
	157	}
	158	}
	159	return best;
	160	}
	161
	162	static GdkPixbuf CreateStockIcon(const char stockid, GtkIconSize size)
	163	{
	164	// FIXME: This code is not 100% correct, because stock pixmap are
	165	// context-dependent and may be affected by theme engine, the
	166	// correct value can only be obtained for given GtkWidget object.
	167	//
	168	// Fool-proof implementation of stock bitmaps would extend wxBitmap
	169	// with "stock-id" representation (in addition to pixmap and pixbuf
	170	// ones) and would convert it to pixbuf when rendered.
	171
	172	GtkStyle *style = gtk_widget_get_default_style();
	173	GtkIconSet *iconset = gtk_style_lookup_icon_set(style, stockid);
	174
	175	if (!iconset)
	176	return NULL;
	177
	178	return gtk_icon_set_render_icon(iconset, style,
	179	gtk_widget_get_default_direction(),
	180	GTK_STATE_NORMAL, size, NULL, NULL);
	181	}
	182
	183	#if GTK_CHECK_VERSION(2,4,0)
	184	static GdkPixbuf CreateThemeIcon(const char iconname,
	185	GtkIconSize iconsize, const wxSize& sz)
	186	{
	187	wxSize size(sz);
	188	if (size == wxDefaultSize)
	189	{
	190	gtk_icon_size_lookup(iconsize, &size.x, &size.y);
	191	}
	192
	193	return gtk_icon_theme_load_icon(
	194	gtk_icon_theme_get_default(),
	195	iconname,
	196	size.x,
	197	(GtkIconLookupFlags)0, NULL);
	198	}
	199	#endif // GTK+ >= 2.4.0
	200
	201	wxBitmap wxGTK2ArtProvider::CreateBitmap(const wxArtID& id,
	202	const wxArtClient& client,
	203	const wxSize& size)
	204	{
	205	wxCharBuffer stockid = wxArtIDToStock(id);
	206	GtkIconSize stocksize = (size == wxDefaultSize) ?
	207	wxArtClientToIconSize(client) :
	208	FindClosestIconSize(size);
	209
	210	// allow passing GTK+ stock IDs to wxArtProvider:
	211	if (!stockid)
	212	stockid = id.ToAscii();
	213
	214	GdkPixbuf *pixbuf = CreateStockIcon(stockid, stocksize);
	215
	216	#if GTK_CHECK_VERSION(2,4,0)
	217	if (!pixbuf)
	218	pixbuf = CreateThemeIcon(stockid, stocksize, size);
	219	#endif
	220
	221	if (pixbuf && size != wxDefaultSize &&
	222	(size.x != gdk_pixbuf_get_width(pixbuf) \|\|
	223	size.y != gdk_pixbuf_get_height(pixbuf)))
	224	{
	225	GdkPixbuf *p2 = gdk_pixbuf_scale_simple(pixbuf, size.x, size.y,
	226	GDK_INTERP_BILINEAR);
	227	if (p2)
	228	{
	229	gdk_pixbuf_unref(pixbuf);
	230	pixbuf = p2;
	231	}
	232	}
	233
	234	if (!pixbuf)
	235	return wxNullBitmap;
	236
	237	wxBitmap bmp;
	238	bmp.SetWidth(gdk_pixbuf_get_width(pixbuf));
	239	bmp.SetHeight(gdk_pixbuf_get_height(pixbuf));
	240	bmp.SetPixbuf(pixbuf);
	241
	242	return bmp;
	243	}
	244
	245	#endif // defined(__WXGTK20__) && !defined(__WXUNIVERSAL__)