1
#ifndef __SP_EVENT_CONTEXT_H__
2
#define __SP_EVENT_CONTEXT_H__
5
* SPEventContext: base class for event processors
7
* This is per desktop object, which (its derivatives) implements
8
* different actions bound to mouse events.
11
* Lauris Kaplinski <lauris@kaplinski.com>
12
* Frank Felfe <innerspace@iname.com>
14
* Copyright (C) 1999-2002 authors
15
* Copyright (C) 2001-2002 Ximian, Inc.
17
* Released under GNU GPL, read the file 'COPYING' for more information
20
#include <glib-object.h>
21
#include <gdk/gdktypes.h>
22
#include <gdk/gdkevents.h>
25
#include "2geom/forward.h"
26
#include "preferences.h"
32
struct SPEventContext;
42
gboolean sp_event_context_snap_watchdog_callback(gpointer data);
43
void sp_event_context_snap_window_open(SPEventContext *ec, bool show_debug_warnings = true);
44
void sp_event_context_snap_window_closed(SPEventContext *ec, bool show_debug_warnings = true);
46
class DelayedSnapEvent
49
enum DelayedSnapEventOrigin {
50
UNDEFINED_HANDLER = 0,
51
EVENTCONTEXT_ROOT_HANDLER,
52
EVENTCONTEXT_ITEM_HANDLER,
56
DelayedSnapEvent(SPEventContext *event_context, SPItem* const item, SPKnot* knot, GdkEventMotion const *event, DelayedSnapEvent::DelayedSnapEventOrigin const origin)
57
: _timer_id(0), _event(NULL), _item(item), _knot(knot), _origin(origin), _event_context(event_context)
59
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
60
double value = prefs->getDoubleLimited("/options/snapdelay/value", 0, 0, 1000);
61
_timer_id = g_timeout_add(value, &sp_event_context_snap_watchdog_callback, this);
62
_event = gdk_event_copy((GdkEvent*) event);
63
((GdkEventMotion *)_event)->time = GDK_CURRENT_TIME;
67
if (_timer_id > 0) g_source_remove(_timer_id); // Kill the watchdog
68
if (_event != NULL) gdk_event_free(_event); // Remove the copy of the original event
71
SPEventContext* getEventContext() {return _event_context;}
72
DelayedSnapEventOrigin getOrigin() {return _origin;}
73
GdkEvent* getEvent() {return _event;}
74
SPItem* getItem() {return _item;}
75
SPKnot* getKnot() {return _knot;}
82
DelayedSnapEventOrigin _origin;
83
SPEventContext* _event_context;
86
void sp_event_context_snap_delay_handler(SPEventContext *ec, SPItem* const item, SPKnot* const knot, GdkEventMotion *event, DelayedSnapEvent::DelayedSnapEventOrigin origin);
89
* Base class for Event processors.
91
struct SPEventContext : public GObject {
92
void enableSelectionCue (bool enable=true);
93
void enableGrDrag (bool enable=true);
95
/// Desktop eventcontext stack
99
Inkscape::Preferences::Observer *pref_observer;
100
gchar const *const *cursor_shape;
101
gint hot_x, hot_y; ///< indicates the cursor's hot spot
104
gint xp, yp; ///< where drag started
106
bool within_tolerance; ///< are we still within tolerance of origin
108
SPItem *item_to_select; ///< the item where mouse_press occurred, to
109
///< be selected if this is a click not drag
111
Inkscape::MessageContext *defaultMessageContext() {
112
return _message_context;
115
Inkscape::MessageContext *_message_context;
117
Inkscape::SelCue *_selcue;
120
GrDrag *get_drag () {return _grdrag;}
122
ShapeEditor* shape_editor;
126
bool _snap_window_open;
127
DelayedSnapEvent *_delayed_snap_event;
131
* The SPEvent vtable.
133
struct SPEventContextClass : public GObjectClass {
134
void (* setup)(SPEventContext *ec);
135
void (* finish)(SPEventContext *ec);
136
void (* set)(SPEventContext *ec, Inkscape::Preferences::Entry *val);
137
void (* activate)(SPEventContext *ec);
138
void (* deactivate)(SPEventContext *ec);
139
gint (* root_handler)(SPEventContext *ec, GdkEvent *event);
140
gint (* item_handler)(SPEventContext *ec, SPItem *item, GdkEvent *event);
143
#define SP_EVENT_CONTEXT_DESKTOP(e) (SP_EVENT_CONTEXT(e)->desktop)
144
#define SP_EVENT_CONTEXT_DOCUMENT(e) ((SP_EVENT_CONTEXT_DESKTOP(e))->doc())
146
#define SP_EVENT_CONTEXT_STATIC 0
148
SPEventContext *sp_event_context_new(GType type, SPDesktop *desktop, gchar const *pref_path, unsigned key);
149
void sp_event_context_finish(SPEventContext *ec);
150
void sp_event_context_read(SPEventContext *ec, gchar const *key);
151
void sp_event_context_activate(SPEventContext *ec);
152
void sp_event_context_deactivate(SPEventContext *ec);
154
gint sp_event_context_root_handler(SPEventContext *ec, GdkEvent *event);
155
gint sp_event_context_virtual_root_handler(SPEventContext *ec, GdkEvent *event);
156
gint sp_event_context_item_handler(SPEventContext *ec, SPItem *item, GdkEvent *event);
157
gint sp_event_context_virtual_item_handler(SPEventContext *ec, SPItem *item, GdkEvent *event);
159
void sp_event_root_menu_popup(SPDesktop *desktop, SPItem *item, GdkEvent *event);
161
gint gobble_key_events(guint keyval, gint mask);
162
gint gobble_motion_events(gint mask);
164
void sp_event_context_update_cursor(SPEventContext *ec);
166
void sp_event_show_modifier_tip(Inkscape::MessageContext *message_context, GdkEvent *event,
167
gchar const *ctrl_tip, gchar const *shift_tip, gchar const *alt_tip);
169
guint get_group0_keyval(GdkEventKey *event);
171
SPItem *sp_event_context_find_item (SPDesktop *desktop, Geom::Point const &p, bool select_under, bool into_groups);
172
SPItem *sp_event_context_over_item (SPDesktop *desktop, SPItem *item, Geom::Point const &p);
174
ShapeEditor *sp_event_context_get_shape_editor (SPEventContext *ec);
176
void ec_shape_event_attr_changed(Inkscape::XML::Node *shape_repr,
177
gchar const *name, gchar const *old_value, gchar const *new_value,
178
bool const is_interactive, gpointer const data);
180
void event_context_print_event_info(GdkEvent *event, bool print_return = true);
188
c-file-style:"stroustrup"
189
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
194
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :