0a3cb295769138d99112eba3a52f891570c20c60
1 #define __KNOT_HOLDER_C__
3 /*
4 * Container for SPKnot visual handles
5 *
6 * Authors:
7 * Mitsuru Oka <oka326@parkcity.ne.jp>
8 * bulia byak <buliabyak@users.sf.net>
9 * Maximilian Albert <maximilian.albert@gmail.com>
10 *
11 * Copyright (C) 2001-2008 authors
12 *
13 * Released under GNU GPL, read the file 'COPYING' for more information
14 */
16 #include "document.h"
17 #include "sp-shape.h"
18 #include "knot.h"
19 #include "knotholder.h"
20 #include "rect-context.h"
21 #include "sp-rect.h"
22 #include "arc-context.h"
23 #include "sp-ellipse.h"
24 #include "star-context.h"
25 #include "sp-star.h"
26 #include "spiral-context.h"
27 #include "sp-spiral.h"
28 #include "sp-offset.h"
29 #include "box3d.h"
30 #include "sp-pattern.h"
31 #include "style.h"
33 #include "xml/repr.h" // for debugging only
35 #include <libnr/nr-matrix-div.h>
36 #include <glibmm/i18n.h>
38 class SPDesktop;
40 KnotHolder::KnotHolder(SPDesktop *desktop, SPItem *item, SPKnotHolderReleasedFunc relhandler)
41 {
42 Inkscape::XML::Node *repr = SP_OBJECT(item)->repr;
44 if (!desktop || !item || !SP_IS_ITEM(item)) {
45 g_print ("Error! Throw an exception, please!\n");
46 }
48 this->desktop = desktop;
49 this->item = item;
50 g_object_ref(G_OBJECT(item)); // TODO: is this still needed after C++-ification?
52 this->released = relhandler;
54 this->repr = repr;
55 this->local_change = FALSE;
56 }
58 KnotHolder::~KnotHolder() {
59 g_object_unref(G_OBJECT(item));
60 for(std::list<KnotHolderEntity *>::iterator i = entity.begin(); i != entity.end(); ++i) {
61 delete *i;
62 }
63 entity.clear(); // this shouldn't be necessary, though
64 }
66 /**
67 * \param p In desktop coordinates.
68 */
70 void
71 KnotHolder::update_knots()
72 {
73 NR::Matrix const i2d(sp_item_i2d_affine(item));
75 for(std::list<KnotHolderEntity *>::iterator i = entity.begin(); i != entity.end(); ++i) {
76 KnotHolderEntity *e = *i;
77 e->update_knot();
78 }
79 }
81 void
82 KnotHolder::knot_clicked_handler(SPKnot *knot, guint state)
83 {
84 KnotHolder *knot_holder = this;
86 for(std::list<KnotHolderEntity *>::iterator i = knot_holder->entity.begin(); i != knot_holder->entity.end(); ++i) {
87 KnotHolderEntity *e = *i;
88 if (e->knot == knot) {
89 // no need to test whether knot_click exists since it's virtual now
90 e->knot_click(state);
91 break;
92 }
93 }
95 if (SP_IS_SHAPE(item)) {
96 sp_shape_set_shape(SP_SHAPE(item));
97 }
99 knot_holder->update_knots();
101 unsigned int object_verb = SP_VERB_NONE;
103 if (SP_IS_RECT(item))
104 object_verb = SP_VERB_CONTEXT_RECT;
105 else if (SP_IS_BOX3D(item))
106 object_verb = SP_VERB_CONTEXT_3DBOX;
107 else if (SP_IS_GENERICELLIPSE(item))
108 object_verb = SP_VERB_CONTEXT_ARC;
109 else if (SP_IS_STAR(item))
110 object_verb = SP_VERB_CONTEXT_STAR;
111 else if (SP_IS_SPIRAL(item))
112 object_verb = SP_VERB_CONTEXT_SPIRAL;
113 else if (SP_IS_OFFSET(item)) {
114 if (SP_OFFSET(item)->sourceHref)
115 object_verb = SP_VERB_SELECTION_LINKED_OFFSET;
116 else
117 object_verb = SP_VERB_SELECTION_DYNAMIC_OFFSET;
118 }
120 // for drag, this is done by ungrabbed_handler, but for click we must do it here
121 sp_document_done(SP_OBJECT_DOCUMENT(item), object_verb,
122 _("Change handle"));
123 }
125 void
126 KnotHolder::knot_moved_handler(SPKnot *knot, NR::Point const *p, guint state)
127 {
128 // this was a local change and the knotholder does not need to be recreated:
129 this->local_change = TRUE;
131 for(std::list<KnotHolderEntity *>::iterator i = this->entity.begin(); i != this->entity.end(); ++i) {
132 KnotHolderEntity *e = *i;
133 if (e->knot == knot) {
134 NR::Point const q = *p / sp_item_i2d_affine(item);
135 e->knot_set(q, e->knot->drag_origin / sp_item_i2d_affine(item), state);
136 break;
137 }
138 }
140 if (SP_IS_SHAPE (item)) {
141 sp_shape_set_shape(SP_SHAPE (item));
142 }
144 this->update_knots();
145 }
147 void
148 KnotHolder::knot_ungrabbed_handler()
149 {
150 if (this->released) {
151 this->released(this->item);
152 } else {
153 SPObject *object = (SPObject *) this->item;
154 object->updateRepr(object->repr, SP_OBJECT_WRITE_EXT);
156 unsigned int object_verb = SP_VERB_NONE;
158 if (SP_IS_RECT(object))
159 object_verb = SP_VERB_CONTEXT_RECT;
160 else if (SP_IS_BOX3D(object))
161 object_verb = SP_VERB_CONTEXT_3DBOX;
162 else if (SP_IS_GENERICELLIPSE(object))
163 object_verb = SP_VERB_CONTEXT_ARC;
164 else if (SP_IS_STAR(object))
165 object_verb = SP_VERB_CONTEXT_STAR;
166 else if (SP_IS_SPIRAL(object))
167 object_verb = SP_VERB_CONTEXT_SPIRAL;
168 else if (SP_IS_OFFSET(object)) {
169 if (SP_OFFSET(object)->sourceHref)
170 object_verb = SP_VERB_SELECTION_LINKED_OFFSET;
171 else
172 object_verb = SP_VERB_SELECTION_DYNAMIC_OFFSET;
173 }
175 sp_document_done(SP_OBJECT_DOCUMENT (object), object_verb,
176 _("Move handle"));
177 }
178 }
180 void
181 KnotHolder::add_pattern_knotholder()
182 {
183 if ((SP_OBJECT(item)->style->fill.isPaintserver())
184 && SP_IS_PATTERN(SP_STYLE_FILL_SERVER(SP_OBJECT(item)->style)))
185 {
186 PatternKnotHolderEntityXY *entity_xy = new PatternKnotHolderEntityXY();
187 PatternKnotHolderEntityAngle *entity_angle = new PatternKnotHolderEntityAngle();
188 PatternKnotHolderEntityScale *entity_scale = new PatternKnotHolderEntityScale();
189 entity_xy->create(desktop, item, this,
190 // TRANSLATORS: This refers to the pattern that's inside the object
191 _("<b>Move</b> the pattern fill inside the object"),
192 SP_KNOT_SHAPE_CROSS);
193 entity_angle->create(desktop, item, this,
194 _("<b>Scale</b> the pattern fill uniformly"),
195 SP_KNOT_SHAPE_SQUARE, SP_KNOT_MODE_XOR);
196 entity_scale->create(desktop, item, this,
197 _("<b>Rotate</b> the pattern fill; with <b>Ctrl</b> to snap angle"),
198 SP_KNOT_SHAPE_CIRCLE, SP_KNOT_MODE_XOR);
199 entity.push_back(entity_xy);
200 entity.push_back(entity_angle);
201 entity.push_back(entity_scale);
202 }
203 }
205 /*
206 Local Variables:
207 mode:c++
208 c-file-style:"stroustrup"
209 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
210 indent-tabs-mode:nil
211 fill-column:99
212 End:
213 */
214 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :