1 #define __SP_VIEW_C__
3 /** \file
4 * View implementation
5 *
6 * Authors:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 * Ralf Stephan <ralf@ark.in-berlin.de>
9 *
10 * Copyright (C) 2001-2002 Lauris Kaplinski
11 * Copyright (C) 2001 Ximian, Inc.
12 *
13 * Released under GNU GPL, read the file 'COPYING' for more information
14 */
16 #ifdef HAVE_CONFIG_H
17 # include "config.h"
18 #endif
20 #include "libnr/nr-point.h"
21 #include "document.h"
22 #include "view.h"
23 #include "message-stack.h"
24 #include "message-context.h"
25 #include "verbs.h"
26 #include "inkscape-private.h"
28 namespace Inkscape {
29 namespace UI {
30 namespace View {
32 static void
33 _onPositionSet (double x, double y, View* v)
34 {
35 v->onPositionSet (x,y);
36 }
38 static void
39 _onResized (double x, double y, View* v)
40 {
41 v->onResized (x,y);
42 }
44 static void
45 _onRedrawRequested (View* v)
46 {
47 v->onRedrawRequested();
48 }
50 static void
51 _onStatusMessage (Inkscape::MessageType type, gchar const *message, View* v)
52 {
53 v->onStatusMessage (type, message);
54 }
56 static void
57 _onDocumentURISet (gchar const* uri, View* v)
58 {
59 v->onDocumentURISet (uri);
60 }
62 static void
63 _onDocumentResized (double x, double y, View* v)
64 {
65 v->onDocumentResized (x,y);
66 }
68 //--------------------------------------------------------------------
69 View::View()
70 : _doc(0)
71 {
72 _message_stack = GC::release(new Inkscape::MessageStack());
73 _tips_message_context = new Inkscape::MessageContext(_message_stack);
75 _position_set_connection = _position_set_signal.connect (sigc::bind (sigc::ptr_fun (&_onPositionSet), this));
76 _resized_connection = _resized_signal.connect (sigc::bind (sigc::ptr_fun (&_onResized), this));
77 _redraw_requested_connection = _redraw_requested_signal.connect (sigc::bind (sigc::ptr_fun (&_onRedrawRequested), this));
79 _message_changed_connection = _message_stack->connectChanged (sigc::bind (sigc::ptr_fun (&_onStatusMessage), this));
80 }
82 /**
83 * Deletes and nulls all View message stacks and disconnects it from signals.
84 */
85 View::~View()
86 {
87 _close();
88 }
90 void View::_close() {
91 _message_changed_connection.disconnect();
93 delete _tips_message_context;
94 _tips_message_context = 0;
96 _message_stack = 0;
98 if (_doc) {
99 _document_uri_set_connection.disconnect();
100 _document_resized_connection.disconnect();
101 if (inkscape_remove_document(_doc)) {
102 // this was the last view of this document, so delete it
103 delete _doc;
104 }
105 _doc = NULL;
106 }
108 Inkscape::Verb::delete_all_view (this);
109 }
111 void View::setPosition (double x, double y)
112 {
113 _position_set_signal.emit (x,y);
114 }
116 void View::setPosition(Geom::Point const &p)
117 {
118 setPosition (double(p[Geom::X]), double(p[Geom::Y]));
119 }
121 void View::emitResized (double width, double height)
122 {
123 _resized_signal.emit (width, height);
124 }
126 void View::requestRedraw()
127 {
128 _redraw_requested_signal.emit();
129 }
131 /**
132 * Disconnects the view from the document signals, connects the view
133 * to a new one, and emits the _document_set_signal on the view.
134 *
135 * This is code comon to all subclasses and called from their
136 * setDocument() methods after they are done.
137 *
138 * \param doc The new document to connect the view to.
139 */
140 void View::setDocument(SPDocument *doc) {
141 g_return_if_fail(doc != NULL);
143 if (_doc) {
144 _document_uri_set_connection.disconnect();
145 _document_resized_connection.disconnect();
146 if (inkscape_remove_document(_doc)) {
147 // this was the last view of this document, so delete it
148 delete _doc;
149 }
150 }
152 inkscape_add_document(doc);
154 _doc = doc;
155 _document_uri_set_connection =
156 _doc->connectURISet(sigc::bind(sigc::ptr_fun(&_onDocumentURISet), this));
157 _document_resized_connection =
158 _doc->connectResized(sigc::bind(sigc::ptr_fun(&_onDocumentResized), this));
159 _document_uri_set_signal.emit (SP_DOCUMENT_URI(_doc));
160 }
162 }}}
164 /*
165 Local Variables:
166 mode:c++
167 c-file-style:"stroustrup"
168 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
169 indent-tabs-mode:nil
170 fill-column:99
171 End:
172 */
173 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :