gseisviewtool.c

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}

void g_seis_view_tool_key_event (GSeisViewTool *tool, GtkWidget *seis_view_gl, GdkEventKey *event,
                                 GSeisViewDataVisibility *data_visibility) {
    GSeisViewToolPrivate *private = G_SEIS_VIEW_TOOL_GET_PRIVATE (tool);

    if (GDK_KEY_PRESS == event->type) {
        if (tool->show_cross && private->current_tool == tool) {
            if ((GDK_Control_L == event->keyval || GDK_Control_R == event->keyval) &&
                private->alt_tool1) {
                g_seis_view_tool_detach_notify (private->current_tool, seis_view_gl);
                private->current_tool = private->alt_tool1;
                g_seis_view_tool_attach_notify (private->current_tool, seis_view_gl);
            } else if ((GDK_Shift_L == event->keyval || GDK_Shift_R == event->keyval) &&
                private->alt_tool2) {
                g_seis_view_tool_detach_notify (private->current_tool, seis_view_gl);
                private->current_tool = private->alt_tool2;
                g_seis_view_tool_attach_notify (private->current_tool, seis_view_gl);
            } else if ((GDK_Alt_L == event->keyval || GDK_Alt_R == event->keyval) &&
                private->alt_tool3) {
                g_seis_view_tool_detach_notify (private->current_tool, seis_view_gl);
                private->current_tool = private->alt_tool3;
                g_seis_view_tool_attach_notify (private->current_tool, seis_view_gl);
            }
        }
    } else if (GDK_KEY_RELEASE == event->type) {
        if (private->current_tool != tool &&
            (GDK_Control_L == event->keyval || GDK_Control_R == event->keyval ||
             GDK_Shift_L == event->keyval || GDK_Shift_R == event->keyval ||
             GDK_Alt_L == event->keyval || GDK_Alt_R == event->keyval)) {
            g_seis_view_tool_detach_notify (private->current_tool, seis_view_gl);
            private->current_tool = tool;
            g_seis_view_tool_attach_notify (private->current_tool, seis_view_gl);
        }
    }

    if (0 == (private->current_tool->event_mask & G_SEIS_VIEW_TOOL_KEY_EVENT))
        return;

    G_SEIS_VIEW_TOOL_GET_CLASS (G_OBJECT (private->current_tool))->view_key_event (private->current_tool, seis_view_gl,
                                                                                   event, data_visibility);

    if (private->current_tool != tool)
        tool->show_cross = private->current_tool->show_cross;
}

void g_seis_view_tool_redraw_event (GSeisViewTool *tool, GtkWidget *seis_view_gl,
                                    GSeisViewDataVisibility *data_visibility) {
    GSeisViewToolPrivate *private = G_SEIS_VIEW_TOOL_GET_PRIVATE (tool);

    if (0 == (private->current_tool->event_mask & G_SEIS_VIEW_TOOL_REDRAW_EVENT))
        return;

    G_SEIS_VIEW_TOOL_GET_CLASS (G_OBJECT (private->current_tool))->view_redraw_event (private->current_tool, seis_view_gl,
                                                                                      data_visibility);

    if (private->current_tool != tool)
        tool->show_cross = private->current_tool->show_cross;
}

void g_seis_view_tool_resize_event (GSeisViewTool *tool, GtkWidget *seis_view_gl,
                                    GSeisViewDataVisibility *data_visibility) {
    GSeisViewToolPrivate *private = G_SEIS_VIEW_TOOL_GET_PRIVATE (tool);

    if (0 == (private->current_tool->event_mask & G_SEIS_VIEW_TOOL_RESIZE_EVENT))
        return;

    G_SEIS_VIEW_TOOL_GET_CLASS (G_OBJECT (private->current_tool))->view_resize_event (private->current_tool, seis_view_gl,
                                                                                      data_visibility);

    if (private->current_tool != tool)
        tool->show_cross = private->current_tool->show_cross;
}

static void g_seis_view_tool_init (GSeisViewTool *self) {
    GSeisViewToolPrivate *private = G_SEIS_VIEW_TOOL_GET_PRIVATE (self);

    self->event_mask = 0;

    private->current_tool = self;
    private->alt_tool1 = NULL;
    private->alt_tool2 = NULL;
    private->alt_tool3 = NULL;

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

static void g_seis_view_tool_finalize (GObject *object) {
    GSeisViewTool *self = G_SEIS_VIEW_TOOL (object);
    GSeisViewToolPrivate *private = G_SEIS_VIEW_TOOL_GET_PRIVATE (self);

    if (private->alt_tool1)
        g_object_unref (G_OBJECT (private->alt_tool1));

    if (private->alt_tool2)
        g_object_unref (G_OBJECT (private->alt_tool2));

    if (private->alt_tool3)
        g_object_unref (G_OBJECT (private->alt_tool3));

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

enum {
    PROP_0,
    PROP_EVENT_MASK,
    PROP_SHOW_CROSS,
    PROP_NUM
};

static void g_seis_view_tool_set_property (GObject *object, guint prop_id,
                                           const GValue *value, GParamSpec *pspec) {
    switch (prop_id) {
        case PROP_EVENT_MASK:
        case PROP_SHOW_CROSS:
        default:
            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
            break;
    }
}

static void g_seis_view_tool_get_property (GObject *object, guint prop_id,
                                           GValue *value, GParamSpec *pspec) {
    GSeisViewTool *self = G_SEIS_VIEW_TOOL (object);

    switch (prop_id) {
        case PROP_EVENT_MASK:
            g_value_set_uint (value, self->event_mask);
            break;
        case PROP_SHOW_CROSS:
            g_value_set_boolean (value, self->event_mask);
            break;
        default:
            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
            break;
    }
}

static void g_seis_view_tool_class_init (GSeisViewToolClass *klass) {
    GObjectClass *gobject_class = G_OBJECT_CLASS (klass);

    gobject_class->finalize = g_seis_view_tool_finalize;

    g_type_class_add_private (klass, sizeof (GSeisViewToolPrivate));

    klass->view_attach_notify = g_seis_view_tool_attach_notify_base;
    klass->view_detach_notify = g_seis_view_tool_detach_notify_base;

    klass->view_button_event = g_seis_view_tool_button_event_base;
    klass->view_scroll_event = g_seis_view_tool_scroll_event_base;
    klass->view_enter_event = g_seis_view_tool_enter_event_base;
    klass->view_leave_event = g_seis_view_tool_leave_event_base;
    klass->view_motion_event = g_seis_view_tool_motion_event_base;
    klass->view_key_event = g_seis_view_tool_key_event_base;

    klass->view_redraw_event = g_seis_view_tool_redraw_event_base;
    klass->view_resize_event = g_seis_view_tool_resize_event_base;

    gobject_class->set_property = g_seis_view_tool_set_property;
    gobject_class->get_property = g_seis_view_tool_get_property;

    g_object_class_install_property (gobject_class,
                                     PROP_EVENT_MASK,
                                     g_param_spec_uint ("event_mask",
                                     "Event Mask",
                                     "Events the tool is intrested in",
                                     0, G_SEIS_VIEW_TOOL_ALL_EVENTS,
                                     G_SEIS_VIEW_TOOL_ALL_EVENTS,
                                     G_PARAM_READABLE));

    g_object_class_install_property (gobject_class,
                                     PROP_SHOW_CROSS,
                                     g_param_spec_boolean ("show_cross",
                                     "ShowCross",
                                     "Show cross in cursor's location",
                                     FALSE,
                                     G_PARAM_READABLE));

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