1 #define __SELCUE_C__
3 /*
4 * Helper object for showing selected items
5 *
6 * Authors:
7 * bulia byak <bulia@users.sf.net>
8 * Carl Hetherington <inkscape@carlh.net>
9 *
10 * Copyright (C) 2004 Authors
11 *
12 * Released under GNU GPL, read the file 'COPYING' for more information
13 */
15 #include <string.h>
17 #include "desktop-handles.h"
18 #include "selection.h"
19 #include "display/sp-canvas-util.h"
20 #include "display/sodipodi-ctrl.h"
21 #include "display/sodipodi-ctrlrect.h"
22 #include "libnrtype/Layout-TNG.h"
23 #include "text-editing.h"
24 #include "sp-text.h"
25 #include "sp-flowtext.h"
26 #include "prefs-utils.h"
27 #include "selcue.h"
29 Inkscape::SelCue::SelCue(SPDesktop *desktop)
30 : _desktop(desktop)
31 {
32 _selection = sp_desktop_selection(_desktop);
34 _sel_changed_connection = _selection->connectChanged(
35 sigc::hide(sigc::mem_fun(*this, &Inkscape::SelCue::_updateItemBboxes))
36 );
38 _sel_modified_connection = _selection->connectModified(
39 sigc::hide(sigc::hide(sigc::mem_fun(*this, &Inkscape::SelCue::_updateItemBboxes)))
40 );
42 _updateItemBboxes();
43 }
45 Inkscape::SelCue::~SelCue()
46 {
47 _sel_changed_connection.disconnect();
48 _sel_modified_connection.disconnect();
50 for (std::list<SPCanvasItem*>::iterator i = _item_bboxes.begin(); i != _item_bboxes.end(); i++) {
51 gtk_object_destroy(*i);
52 }
53 _item_bboxes.clear();
55 for (std::list<SPCanvasItem*>::iterator i = _text_baselines.begin(); i != _text_baselines.end(); i++) {
56 gtk_object_destroy(*i);
57 }
58 _text_baselines.clear();
59 }
61 void Inkscape::SelCue::_updateItemBboxes()
62 {
63 for (std::list<SPCanvasItem*>::iterator i = _item_bboxes.begin(); i != _item_bboxes.end(); i++) {
64 gtk_object_destroy(*i);
65 }
66 _item_bboxes.clear();
68 for (std::list<SPCanvasItem*>::iterator i = _text_baselines.begin(); i != _text_baselines.end(); i++) {
69 gtk_object_destroy(*i);
70 }
71 _text_baselines.clear();
73 gint mode = prefs_get_int_attribute ("options.selcue", "value", MARK);
74 if (mode == NONE) {
75 return;
76 }
78 g_return_if_fail(_selection != NULL);
80 gchar const *prefs_bbox = prefs_get_string_attribute("tools", "bounding_box");
81 SPItem::BBoxType bbox_type = (prefs_bbox != NULL && strcmp(prefs_bbox, "geometric")==0)? SPItem::GEOMETRIC_BBOX : SPItem::APPROXIMATE_BBOX;
83 for (GSList const *l = _selection->itemList(); l != NULL; l = l->next) {
84 SPItem *item = (SPItem *) l->data;
86 NR::Maybe<NR::Rect> const b = sp_item_bbox_desktop(item, bbox_type);
88 SPCanvasItem* box = NULL;
90 if (b) {
91 if (mode == MARK) {
92 box = sp_canvas_item_new(sp_desktop_controls(_desktop),
93 SP_TYPE_CTRL,
94 "mode", SP_CTRL_MODE_XOR,
95 "shape", SP_CTRL_SHAPE_DIAMOND,
96 "size", 5.0,
97 "filled", TRUE,
98 "fill_color", 0x000000ff,
99 "stroked", FALSE,
100 "stroke_color", 0x000000ff,
101 NULL);
102 sp_canvas_item_show(box);
103 SP_CTRL(box)->moveto(NR::Point(b->min()[NR::X], b->max()[NR::Y]));
105 sp_canvas_item_move_to_z(box, 0); // just low enough to not get in the way of other draggable knots
107 } else if (mode == BBOX) {
108 box = sp_canvas_item_new(sp_desktop_controls(_desktop),
109 SP_TYPE_CTRLRECT,
110 NULL);
112 SP_CTRLRECT(box)->setRectangle(*b);
113 SP_CTRLRECT(box)->setColor(0x000000a0, 0, 0);
114 SP_CTRLRECT(box)->setDashed(true);
116 sp_canvas_item_move_to_z(box, 0);
117 }
118 }
120 if (box) {
121 _item_bboxes.push_back(box);
122 }
124 SPCanvasItem* baseline_point = NULL;
125 if (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item)) { // visualize baseline
126 Inkscape::Text::Layout const *layout = te_get_layout(item);
127 if (layout != NULL) {
128 NR::Point a = layout->characterAnchorPoint(layout->begin()) * sp_item_i2d_affine(item);
129 baseline_point = sp_canvas_item_new(sp_desktop_controls(_desktop), SP_TYPE_CTRL,
130 "mode", SP_CTRL_MODE_XOR,
131 "size", 4.0,
132 "filled", 0,
133 "stroked", 1,
134 "stroke_color", 0x000000ff,
135 NULL);
137 sp_canvas_item_show(baseline_point);
138 SP_CTRL(baseline_point)->moveto(a);
139 sp_canvas_item_move_to_z(baseline_point, 0);
140 }
141 }
143 if (baseline_point) {
144 _text_baselines.push_back(baseline_point);
145 }
146 }
147 }
149 /*
150 Local Variables:
151 mode:c++
152 c-file-style:"stroustrup"
153 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
154 indent-tabs-mode:nil
155 fill-column:99
156 End:
157 */
158 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :