gtk_i.c

linux上播放midi音乐,但是要一些设置.可网上查找. 软件名称: TiMidity++-2.13.0.tar

    gtk_box_pack_start(GTK_BOX(hbox), handlebox, FALSE, FALSE, 0);

    table = gtk_table_new(7, 2, TRUE);
    gtk_container_add(GTK_CONTAINER(handlebox), table);

    button = create_button_with_pixmap(window, playpaus_xpm, GTK_PAUSE,
				       "Play/Pause");
    gtk_table_attach_defaults(GTK_TABLE(table), button,
			      0, 2, 0, 1);

    button = create_button_with_pixmap(window, prevtrk_xpm, GTK_PREV,
				       "Previous file");
    gtk_table_attach_defaults(GTK_TABLE(table), button,
			      0, 1, 1, 2);

    button = create_button_with_pixmap(window, nexttrk_xpm, GTK_NEXT,
				       "Next file");
    gtk_table_attach_defaults(GTK_TABLE(table), button,
			      1, 2, 1, 2);

    button = create_button_with_pixmap(window, rew_xpm, GTK_RWD,
				       "Rewind");
    gtk_table_attach_defaults(GTK_TABLE(table), button,
			      0, 1, 2, 3);

    button = create_button_with_pixmap(window, ff_xpm, GTK_FWD,
				       "Fast forward");
    gtk_table_attach_defaults(GTK_TABLE(table), button,
			      1, 2, 2, 3);

    button = create_button_with_pixmap(window, keydown_xpm, GTK_KEYDOWN,
				       "Lower pitch");
    gtk_table_attach_defaults(GTK_TABLE(table), button,
			      0, 1, 3, 4);

    button = create_button_with_pixmap(window, keyup_xpm, GTK_KEYUP,
				       "Raise pitch");
    gtk_table_attach_defaults(GTK_TABLE(table), button,
			      1, 2, 3, 4);

    button = create_button_with_pixmap(window, slow_xpm, GTK_SLOWER,
				       "Decrease tempo");
    gtk_table_attach_defaults(GTK_TABLE(table), button,
			      0, 1, 4, 5);

    button = create_button_with_pixmap(window, fast_xpm, GTK_FASTER,
				       "Increase tempo");
    gtk_table_attach_defaults(GTK_TABLE(table), button,
			      1, 2, 4, 5);

    button = create_button_with_pixmap(window, restart_xpm, GTK_RESTART,
				       "Restart");
    gtk_table_attach_defaults(GTK_TABLE(table), button,
			      0, 1, 5, 6);

    button = create_button_with_pixmap(window, open_xpm, 0,
				       "Open");
    gtk_signal_disconnect_by_func(GTK_OBJECT(button), generic_cb, 0);
    gtk_signal_connect(GTK_OBJECT(button), "clicked",
			      GTK_SIGNAL_FUNC(open_file_cb), 0);
    gtk_table_attach_defaults(GTK_TABLE(table), button,
			      1, 2, 5, 6);

    button = create_button_with_pixmap(window, quit_xpm, GTK_QUIT,
				       "Quit");
    gtk_table_attach_defaults(GTK_TABLE(table), button,
			      0, 2, 6, 7);

    gtk_widget_show(hbox);
    gtk_widget_show(vbox);
    gtk_widget_show(table);
    gtk_widget_show(handlebox);
    gtk_widget_show(window);

    gdk_input_add(pipe_number, GDK_INPUT_READ, handle_input, NULL);

    gtk_main();
}

static GtkWidget *
create_button_with_pixmap(GtkWidget *window, gchar **bits, gint data, gchar *thelp)
{
    GtkWidget	*pw, *button;
    GdkPixmap	*pixmap;
    GdkBitmap	*mask;
    GtkStyle	*style;

    style = gtk_widget_get_style(window);
    pixmap = gdk_pixmap_create_from_xpm_d(window->window,
					  &mask,
					  &style->bg[GTK_STATE_NORMAL],
					  bits);
    pw = gtk_pixmap_new(pixmap, mask);
    gtk_widget_show(pw);

    button = gtk_button_new();
    gtk_container_add(GTK_CONTAINER(button), pw);
    gtk_signal_connect(GTK_OBJECT(button), "clicked",
			      GTK_SIGNAL_FUNC(generic_cb),
			      (gpointer)data);
    gtk_widget_show(button);
    gtk_tooltips_set_tip(ttip, button, thelp, NULL);

    return button;
}

static GtkWidget *
create_pixmap_label(GtkWidget *window, gchar **bits)
{
    GtkWidget	*pw;
    GdkPixmap	*pixmap;
    GdkBitmap	*mask;
    GtkStyle	*style;

    style = gtk_widget_get_style(window);
    pixmap = gdk_pixmap_create_from_xpm_d(window->window,
					  &mask,
					  &style->bg[GTK_STATE_NORMAL],
					  bits);
    pw = gtk_pixmap_new(pixmap, mask);
    gtk_widget_show(pw);

    return pw;
}

static void
set_icon_pixmap(GtkWidget *window, gchar **bits)
{
    GdkPixmap	*pixmap;
    GdkBitmap	*mask;
    GtkStyle	*style;

    style = gtk_widget_get_style(window);
    pixmap = gdk_pixmap_create_from_xpm_d(window->window,
					  &mask,
					  &style->bg[GTK_STATE_NORMAL],
					  bits);
    gdk_window_set_icon(window->window, NULL, pixmap, mask);
    gdk_window_set_icon_name(window->window, "TiMidity");
}

static GtkWidget *
create_menubar(void)
{
    GtkItemFactory	*ifactory;
    GtkAccelGroup	*ag;

    ag = gtk_accel_group_get_default();
    ifactory = gtk_item_factory_new(GTK_TYPE_MENU_BAR, "<Main>", ag);
    gtk_item_factory_create_items(ifactory,
				  sizeof(ife) / sizeof(GtkItemFactoryEntry),
				  ife, NULL);
    gtk_widget_show(ifactory->widget);

    auto_next = gtk_item_factory_get_widget(ifactory, "/Options/Auto next");
    gtk_check_menu_item_set_state(GTK_CHECK_MENU_ITEM(auto_next), TRUE);
    ttshow = gtk_item_factory_get_widget(ifactory, "/Options/Show tooltips");
    gtk_check_menu_item_set_state(GTK_CHECK_MENU_ITEM(ttshow), TRUE);

    return ifactory->widget;
}

/* Following function curtesy of the gtk mailing list. */

static GtkTooltips *
create_yellow_tooltips()
{
    GdkColor	*t_back;
    GtkTooltips	*tip;

    t_back = (GdkColor*)g_malloc( sizeof(GdkColor));

    /* First create a default Tooltip */
    tip = gtk_tooltips_new();

    /* Try to get the colors */
    if ( gdk_color_parse("linen", t_back)){
	if(gdk_colormap_alloc_color(gdk_colormap_get_system(),
				    t_back,
				    FALSE, TRUE)) {
	    gtk_tooltips_set_colors(tip, t_back, NULL);
	}
    }

    return tip;
}

/* Receive DATA sent by the application on the pipe     */

static void
handle_input(gpointer client_data, gint source, GdkInputCondition ic)
{
    int message;

    gtk_pipe_int_read(&message);

    switch (message) {
    case REFRESH_MESSAGE:
	g_warning("REFRESH MESSAGE IS OBSOLETE !!!");
	break;

    case TOTALTIME_MESSAGE:
	{
	    int cseconds;
	    int minutes,seconds;
	    char local_string[20];
	    GtkObject *adj;

	    gtk_pipe_int_read(&cseconds);

	    seconds=cseconds/100;
	    minutes=seconds/60;
	    seconds-=minutes*60;
	    sprintf(local_string,"/ %i:%02i",minutes,seconds);
	    gtk_label_set(GTK_LABEL(tot_lbl), local_string);

	    /* Readjust the time scale */
	    max_sec=cseconds/100;
	    adj = gtk_adjustment_new(0., 0., (gfloat)max_sec,
				     1., 10., 0.);
	    gtk_signal_connect(GTK_OBJECT(adj), "value_changed",
			       GTK_SIGNAL_FUNC(generic_scale_cb),
			       (gpointer)GTK_CHANGE_LOCATOR);
	    gtk_range_set_adjustment(GTK_RANGE(locator),
				     GTK_ADJUSTMENT(adj));
	}
	break;

    case MASTERVOL_MESSAGE:
	{
	    int volume;
	    GtkAdjustment *adj;

	    gtk_pipe_int_read(&volume);
	    adj = gtk_range_get_adjustment(GTK_RANGE(vol_scale));
	    my_adjustment_set_value(adj, MAX_AMPLIFICATION - volume);
	}
	break;

    case FILENAME_MESSAGE:
	{
	    char filename[255], title[255];
	    char *pc;

	    gtk_pipe_string_read(filename);

	    /* Extract basename of the file */
	    pc = strrchr(filename, '/');
	    if (pc == NULL)
		pc = filename;
	    else
		pc++;

	    sprintf(title, "Timidity %s - %s", timidity_version, pc);
	    gtk_window_set_title(GTK_WINDOW(window), title);

	    /* Clear the text area. */
	    gtk_text_freeze(GTK_TEXT(text));
	    gtk_text_set_point(GTK_TEXT(text), 0);
	    gtk_text_forward_delete(GTK_TEXT(text),
				    gtk_text_get_length(GTK_TEXT(text)));
	    gtk_text_thaw(GTK_TEXT(text));
	}
	break;

    case FILE_LIST_MESSAGE:
	{
	    gchar filename[255], *fnames[2];
	    gint i, number_of_files, row;

	    /* reset the playing list : play from the start */
	    file_number_to_play = -1;

	    gtk_pipe_int_read(&number_of_files);
	    for (i = 0; i < number_of_files; i++)
	    {
		gtk_pipe_string_read(filename);
		fnames[0] = filename;
		fnames[1] = NULL;
		row = gtk_clist_append(GTK_CLIST(clist), fnames);
	    }
	    gtk_clist_columns_autosize(GTK_CLIST(clist));
	}
	break;

    case NEXT_FILE_MESSAGE:
    case PREV_FILE_MESSAGE:
    case TUNE_END_MESSAGE:
	{
	    int nbfile;

	    /* When a file ends, launch next if auto_next toggle */
	    if ( (message==TUNE_END_MESSAGE) &&
		 !GTK_CHECK_MENU_ITEM(auto_next)->active )
		return;

	    /* Total number of file to play in the list */
	    nbfile = GTK_CLIST(clist)->rows;

	    if (message == PREV_FILE_MESSAGE)
		file_number_to_play--;
	    else
		file_number_to_play++;

	    /* Do nothing if requested file is before first one */
	    if (file_number_to_play < 0) {
		file_number_to_play = 0;
		return;
	    }

	    /* Stop after playing the last file */
	    if (file_number_to_play >= nbfile) {
		file_number_to_play = nbfile - 1;
		return;
	    }

	    if(gtk_clist_row_is_visible(GTK_CLIST(clist),
					file_number_to_play) !=
	       GTK_VISIBILITY_FULL) {
		gtk_clist_moveto(GTK_CLIST(clist), file_number_to_play,
				 -1, 1.0, 0.0);
	    }
	    gtk_clist_select_row(GTK_CLIST(clist), file_number_to_play, 0);
	}
	break;

    case CURTIME_MESSAGE:
	{
	    int		seconds, minutes;
	    int		nbvoice;
	    char	local_string[20];

	    gtk_pipe_int_read(&seconds);
	    gtk_pipe_int_read(&nbvoice);

	    if( is_quitting )
		return;

	    minutes=seconds/60;

	    sprintf(local_string,"%2d:%02d", minutes, (int)(seconds % 60));

	    gtk_label_set(GTK_LABEL(cnt_lbl), local_string);

	    /* Readjust the time scale if not dragging the scale */
	    if( !locating && (seconds <= max_sec)) {
		GtkAdjustment *adj;

		adj = gtk_range_get_adjustment(GTK_RANGE(locator));
		my_adjustment_set_value(adj, (gfloat)seconds);
	    }
	}
	break;

    case NOTE_MESSAGE:
	{
	    int channel;
	    int note;

	    gtk_pipe_int_read(&channel);
	    gtk_pipe_int_read(&note);
	    g_warning("NOTE chn%i %i", channel, note);
	}
	break;

    case PROGRAM_MESSAGE:
	{
	    int channel;
	    int pgm;

	    gtk_pipe_int_read(&channel);
	    gtk_pipe_int_read(&pgm);
	    g_warning("NOTE chn%i %i", channel, pgm);
	}
	break;

    case VOLUME_MESSAGE:
	{
	    int channel;
	    int volume;

	    gtk_pipe_int_read(&channel);
	    gtk_pipe_int_read(&volume);
	    g_warning("VOLUME= chn%i %i", channel, volume);
	}
	break;


    case EXPRESSION_MESSAGE:
	{
	    int channel;
	    int express;

	    gtk_pipe_int_read(&channel);
	    gtk_pipe_int_read(&express);
	    g_warning("EXPRESSION= chn%i %i", channel, express);
	}
	break;

    case PANNING_MESSAGE:
	{
	    int channel;
	    int pan;

	    gtk_pipe_int_read(&channel);
	    gtk_pipe_int_read(&pan);
	    g_warning("PANNING= chn%i %i", channel, pan);
	}
	break;

    case SUSTAIN_MESSAGE:
	{
	    int channel;
	    int sust;

	    gtk_pipe_int_read(&channel);
	    gtk_pipe_int_read(&sust);
	    g_warning("SUSTAIN= chn%i %i", channel, sust);
	}
	break;

    case PITCH_MESSAGE:
	{
	    int channel;
	    int bend;

	    gtk_pipe_int_read(&channel);
	    gtk_pipe_int_read(&bend);
	    g_warning("PITCH BEND= chn%i %i", channel, bend);
	}
	break;

    case RESET_MESSAGE:
	g_warning("RESET_MESSAGE");
	break;

    case CLOSE_MESSAGE:
	gtk_exit(0);
	break;

    case CMSG_MESSAGE:
	{
	    int type;
	    char message[1000];

	    gtk_pipe_int_read(&type);
	    gtk_pipe_string_read(message);
	    gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL,
			    message, -1);
	    gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL,
			    "\n", 1);
	}
	break;
    case LYRIC_MESSAGE:
	{
	    char message[1000];

	    gtk_pipe_string_read(message);

	    gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL,
			    message, -1);
	}
	break;
    default:
	g_warning("UNKNOWN Gtk+ MESSAGE %i", message);
    }
}