gseisviewaxisz.c

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        G_SEIS_VIEW_AXIS (axis)->size_pixels = private->text_width_screen * 1.2625 +
                                               private->text_height_screen * 0.4;
    }

    private->redisplay = TRUE;

    if (private->rendering_mutex)
        g_mutex_unlock (private->rendering_mutex);
}

enum {
    PROP_0,
    PROP_MIN,
    PROP_STEP,
    PROP_NUM,
    PROP_FORMAT,
    PROP_PRECISION,
    PROP_FONT,
    PROP_FG_COLOR,
    PROP_BG_COLOR   
};

static void g_seis_view_axis_z_set_property (GObject *object, guint prop_id,
                                             const GValue *value, GParamSpec *pspec) {
    GSeisViewAxisZ *self = G_SEIS_VIEW_AXIS_Z (object);
    GSeisViewAxisZPrivate *private = G_SEIS_VIEW_AXIS_Z_GET_PRIVATE (self);

    switch (prop_id) {
        case PROP_MIN:
            g_seis_view_axis_z_set_min_max (self, g_value_get_double (value), private->values_step, private->values_num);
            break;
        case PROP_STEP:
            g_seis_view_axis_z_set_min_max (self, private->min_value, g_value_get_double (value), private->values_num);
            break;
        case PROP_NUM:
            g_seis_view_axis_z_set_min_max (self, private->min_value, private->values_step, g_value_get_uint (value));
            break;
        case PROP_FORMAT:
            g_seis_view_axis_z_set_format (self, g_value_get_enum (value));
            break;
        case PROP_PRECISION:
            g_seis_view_axis_z_set_precision (self, g_value_get_uchar (value));
            break;
        case PROP_FONT:
            g_seis_view_axis_z_set_font (self, g_value_get_string (value));
            break;
        case PROP_FG_COLOR:
            g_seis_view_axis_z_set_fg_color (self, (GSeisColor*)g_value_get_boxed (value));
            break;
        case PROP_BG_COLOR:
            g_seis_view_axis_z_set_bg_color (self, (GSeisColor*)g_value_get_boxed (value));
            break;
        default:
            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
            break;
    }
}

static void g_seis_view_axis_z_get_property (GObject *object, guint prop_id,
                                             GValue *value, GParamSpec *pspec) {
    GSeisViewAxisZ *self = G_SEIS_VIEW_AXIS_Z (object);
    GSeisViewAxisZPrivate *private = G_SEIS_VIEW_AXIS_Z_GET_PRIVATE (self);

    switch (prop_id) {
        case PROP_MIN:
            g_value_set_double (value, private->min_value);
            break;
        case PROP_STEP:
            g_value_set_double (value, private->values_step);
            break;
        case PROP_NUM:
            g_value_set_uint (value, private->values_num);
            break;
        case PROP_FORMAT:
            g_value_set_enum (value, private->format);
            break;
        case PROP_PRECISION:
            g_value_set_uchar (value, private->precision);
            break;
        case PROP_FONT:
            g_value_set_string (value, private->font_name);
            break;
        case PROP_FG_COLOR:
            g_value_set_boxed (value, &private->fg_color);
            break;
        case PROP_BG_COLOR:
            g_value_set_boxed (value, &private->bg_color);
            break;
        default:
            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
            break;
    }
}

static GType g_seis_view_axis_z_format_get_type (void) {
    static GType etype = 0;
    if (etype == 0) {
        static const GEnumValue values[] = {
           { G_SEIS_VIEW_AXIS_Z_INTEGER, "G_SEIS_VIEW_AXIS_Z_INTEGER", "integer" },
           { G_SEIS_VIEW_AXIS_Z_FLOAT, "G_SEIS_VIEW_AXIS_Z_FLOAT", "float" },
           { 0, NULL, NULL }
        };
        etype = g_enum_register_static ("GSeisViewAxisZFormat", values);
    }
    return etype;
}

static void g_seis_view_axis_z_init (GSeisViewAxisZ *self) {
    GSeisViewAxisZPrivate *private = G_SEIS_VIEW_AXIS_Z_GET_PRIVATE (self);

    private->format = G_SEIS_VIEW_AXIS_Z_FLOAT;
    private->label_max_strlen = 0;
    private->precision = 2;
    private->min_value = 0;
    private->max_value = 1.0;
    private->values_num = 2;
    private->values_step = 1;

    private->fg_color.red = G_MAXUINT16;
    private->fg_color.green = G_MAXUINT16;
    private->fg_color.blue = G_MAXUINT16;
    private->bg_color.red = 0;
    private->bg_color.green = 0;
    private->bg_color.blue = 0;

    private->font_name = NULL;
    private->font_list_base = 0;
    private->font_list_start = 32;
    private->font_list_end = 96;
    private->display_list_base = 0;

    private->font_desc = NULL;
    private->text_width_screen = 0;
    private->text_height_screen = 0;

    private->rebuild_font = TRUE;
    private->redisplay = TRUE;

    (G_SEIS_VIEW_AXIS (self))->type = G_SEIS_VIEW_AXIS_LEFT;
    (G_SEIS_VIEW_AXIS (self))->size_pixels = 35;

    private->is_threaded = FALSE;
    private->rendering_mutex = NULL;

#ifdef DEBUG
    g_print ("<GSeisViewAxisZ is inited>\n");
#endif
}

static void g_seis_view_axis_z_finalize (GObject *object) {
    GSeisViewAxisZPrivate *private = G_SEIS_VIEW_AXIS_Z_GET_PRIVATE (G_SEIS_VIEW_AXIS_Z (object));

    if (private->font_name)
        g_free (private->font_name);

    if (private->font_desc)
        pango_font_description_free (private->font_desc);

    if (private->rendering_mutex)
        g_mutex_free (private->rendering_mutex);

#ifdef DEBUG
    g_print ("<GSeisViewAxisZ is finalized>\n");
#endif
    if (G_OBJECT_CLASS (g_seis_view_axis_z_parent_class)->finalize)
        G_OBJECT_CLASS (g_seis_view_axis_z_parent_class)->finalize (object);
}

static void g_seis_view_axis_z_class_init (GSeisViewAxisZClass *klass) {
    GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
    GSeisViewAxisClass *axis_class = G_SEIS_VIEW_AXIS_CLASS (klass);

    gobject_class->finalize = g_seis_view_axis_z_finalize;

    gobject_class->set_property = g_seis_view_axis_z_set_property;
    gobject_class->get_property = g_seis_view_axis_z_get_property;

    g_type_class_add_private (klass, sizeof (GSeisViewAxisZPrivate));

    axis_class->view_attach_notify = g_seis_view_axis_z_attach_notify;
    axis_class->view_detach_notify = g_seis_view_axis_z_detach_notify;

    axis_class->view_data_viewport_change = g_seis_view_axis_z_data_viewport_change;

    axis_class->view_redraw_event = g_seis_view_axis_z_redraw_event;
    axis_class->view_resize_event = g_seis_view_axis_z_resize_event;

    axis_class->axis_reshape = g_seis_view_axis_z_reshape;

    g_object_class_install_property (gobject_class,
                                     PROP_MIN,
                                     g_param_spec_double ("min", "Min",
                                     "Axis minimum value",
                                     -G_MAXDOUBLE,
                                     G_MAXDOUBLE,
                                     0,
                                     G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class,
                                     PROP_STEP,
                                     g_param_spec_double ("step", "Step",
                                     "Interval between ticks",
                                     -G_MAXDOUBLE,
                                     G_MAXDOUBLE,
                                     1.0,
                                     G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class,
                                     PROP_NUM,
                                     g_param_spec_uint ("num", "Num",
                                     "Number of ticks",
                                     0,
                                     G_MAXUINT,
                                     2,
                                     G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class,
                                     PROP_FORMAT,
                                     g_param_spec_enum ("format", "Format",
                                     "Tick labels format",
                                     g_seis_view_axis_z_format_get_type (),
                                     G_SEIS_VIEW_AXIS_Z_FLOAT,
                                     G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class,
                                     PROP_PRECISION,
                                     g_param_spec_uchar ("precision", "Precision",
                                     "Tick labels precision (number of digits in fractinal part)",
                                     0,
                                     6,
                                     2,
                                     G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class,
                                     PROP_FONT,
                                     g_param_spec_string ("font", "Font",
                                     "Font to use in labels",
#ifdef WIN32
                                     "Tahoma 10",
#else
                                     "Helvetica 10",
#endif
                                     G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class,
                                     PROP_FG_COLOR,
                                     g_param_spec_boxed ("fg_color", "ForegroundColor",
                                     "Foreground color of the axis",
                                     G_TYPE_SEIS_COLOR,
                                     G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class,
                                     PROP_BG_COLOR,
                                     g_param_spec_boxed ("bg_color", "BackgroundColor",
                                     "Background color of the axis",
                                     G_TYPE_SEIS_COLOR,
                                     G_PARAM_READWRITE));

#ifdef DEBUG
    g_print ("<GSeisViewAxisZ class is inited>\n");
#endif
}

GSeisViewAxisZ* g_seis_view_axis_z_new (void) {
    return g_object_new (G_SEIS_TYPE_VIEW_AXIS_Z, NULL);
}