#ifndef __SP_EVENT_CONTEXT_H__ #define __SP_EVENT_CONTEXT_H__ /** \file * SPEventContext: base class for event processors * * This is per desktop object, which (its derivatives) implements * different actions bound to mouse events. * * Authors: * Lauris Kaplinski <lauris@kaplinski.com> * Frank Felfe <innerspace@iname.com> * * Copyright (C) 1999-2002 authors * Copyright (C) 2001-2002 Ximian, Inc. * * Released under GNU GPL, read the file 'COPYING' for more information */ #include <glib-object.h> #include <gdk/gdktypes.h> #include <gdk/gdkevents.h> struct GrDrag; struct SPDesktop; struct SPItem; struct SPKnotHolder; namespace NR { class Point; } namespace Inkscape { class MessageContext; class SelCue; namespace XML { class Node; } } /** * Base class for Event processors. */ 00044 struct SPEventContext : public GObject { void enableSelectionCue (bool enable=true); void enableGrDrag (bool enable=true); /// Desktop eventcontext stack 00049 SPEventContext *next; unsigned key; SPDesktop *desktop; Inkscape::XML::Node *prefs_repr; gchar const *const *cursor_shape; gint hot_x, hot_y; GdkCursor *cursor; 00057 gint xp, yp; ///< where drag started gint tolerance; 00059 bool within_tolerance; ///< are we still within tolerance of origin 00061 SPItem *item_to_select; ///< the item where mouse_press occurred, to ///< be selected if this is a click not drag Inkscape::MessageContext *defaultMessageContext() { return _message_context; } Inkscape::MessageContext *_message_context; Inkscape::SelCue *_selcue; GrDrag *_grdrag; GrDrag *get_drag () {return _grdrag;} SPKnotHolder *shape_knot_holder; Inkscape::XML::Node *shape_repr; bool space_panning; }; /** * The SPEvent vtable. */ 00084 struct SPEventContextClass : public GObjectClass { void (* setup)(SPEventContext *ec); void (* finish)(SPEventContext *ec); void (* set)(SPEventContext *ec, gchar const *key, gchar const *val); void (* activate)(SPEventContext *ec); void (* deactivate)(SPEventContext *ec); gint (* root_handler)(SPEventContext *ec, GdkEvent *event); gint (* item_handler)(SPEventContext *ec, SPItem *item, GdkEvent *event); }; #define SP_EVENT_CONTEXT_DESKTOP(e) (SP_EVENT_CONTEXT(e)->desktop) #define SP_EVENT_CONTEXT_DOCUMENT(e) ((SP_EVENT_CONTEXT_DESKTOP(e))->doc()) #define SP_EVENT_CONTEXT_STATIC 0 SPEventContext *sp_event_context_new(GType type, SPDesktop *desktop, Inkscape::XML::Node *prefs_repr, unsigned key); void sp_event_context_finish(SPEventContext *ec); void sp_event_context_read(SPEventContext *ec, gchar const *key); void sp_event_context_activate(SPEventContext *ec); void sp_event_context_deactivate(SPEventContext *ec); gint sp_event_context_root_handler(SPEventContext *ec, GdkEvent *event); gint sp_event_context_item_handler(SPEventContext *ec, SPItem *item, GdkEvent *event); void sp_event_root_menu_popup(SPDesktop *desktop, SPItem *item, GdkEvent *event); gint gobble_key_events(guint keyval, gint mask); gint gobble_motion_events(gint mask); void sp_event_context_update_cursor(SPEventContext *ec); void sp_event_show_modifier_tip(Inkscape::MessageContext *message_context, GdkEvent *event, gchar const *ctrl_tip, gchar const *shift_tip, gchar const *alt_tip); guint get_group0_keyval(GdkEventKey *event); SPItem *sp_event_context_find_item (SPDesktop *desktop, NR::Point const p, bool select_under, bool into_groups); SPItem *sp_event_context_over_item (SPDesktop *desktop, SPItem *item, NR::Point const p); void ec_shape_event_attr_changed(Inkscape::XML::Node *shape_repr, gchar const *name, gchar const *old_value, gchar const *new_value, bool const is_interactive, gpointer const data); #endif /* Local Variables: mode:c++ c-file-style:"stroustrup" c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) indent-tabs-mode:nil fill-column:99 End: */ // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :