5b9aa4fc838207a1b42753503b4f5c3abdeae4d4
1 /** @file
2 * Desktop-bound selectable control object - implementation
3 */
4 /* Authors:
5 * Krzysztof KosiĆski <tweenk.pl@gmail.com>
6 *
7 * Copyright (C) 2009 Authors
8 * Released under GNU GPL, read the file 'COPYING' for more information
9 */
11 #include "ui/tool/control-point-selection.h"
12 #include "ui/tool/event-utils.h"
13 #include "ui/tool/selectable-control-point.h"
15 namespace Inkscape {
16 namespace UI {
18 static SelectableControlPoint::ColorSet default_scp_color_set = {
19 {
20 {0xffffff00, 0x01000000}, // normal fill, stroke
21 {0xff0000ff, 0x01000000}, // mouseover fill, stroke
22 {0x0000ffff, 0x01000000} // clicked fill, stroke
23 },
24 {0x0000ffff, 0x000000ff}, // normal fill, stroke when selected
25 {0xff000000, 0x000000ff}, // mouseover fill, stroke when selected
26 {0xff000000, 0x000000ff} // clicked fill, stroke when selected
27 };
29 SelectableControlPoint::SelectableControlPoint(SPDesktop *d, Geom::Point const &initial_pos,
30 Gtk::AnchorType anchor, SPCtrlShapeType shape, unsigned int size,
31 ControlPointSelection &sel, ColorSet *cset, SPCanvasGroup *group)
32 : ControlPoint (d, initial_pos, anchor, shape, size,
33 cset ? reinterpret_cast<ControlPoint::ColorSet*>(cset)
34 : reinterpret_cast<ControlPoint::ColorSet*>(&default_scp_color_set), group)
35 , _selection (sel)
36 {
37 _connectHandlers();
38 }
39 SelectableControlPoint::SelectableControlPoint(SPDesktop *d, Geom::Point const &initial_pos,
40 Gtk::AnchorType anchor, Glib::RefPtr<Gdk::Pixbuf> pixbuf,
41 ControlPointSelection &sel, ColorSet *cset, SPCanvasGroup *group)
42 : ControlPoint (d, initial_pos, anchor, pixbuf,
43 cset ? reinterpret_cast<ControlPoint::ColorSet*>(cset)
44 : reinterpret_cast<ControlPoint::ColorSet*>(&default_scp_color_set), group)
45 , _selection (sel)
46 {
47 _connectHandlers();
48 }
50 SelectableControlPoint::~SelectableControlPoint()
51 {
52 _selection.erase(this);
53 _selection.allPoints().erase(this);
54 }
56 void SelectableControlPoint::_connectHandlers()
57 {
58 _selection.allPoints().insert(this);
59 signal_clicked.connect(
60 sigc::mem_fun(*this, &SelectableControlPoint::_clickedHandler));
61 signal_grabbed.connect(
62 sigc::bind_return(
63 sigc::mem_fun(*this, &SelectableControlPoint::_grabbedHandler),
64 false));
65 }
67 void SelectableControlPoint::_grabbedHandler(GdkEventMotion *event)
68 {
69 // if a point is dragged while not selected, it should select itself
70 if (!selected()) {
71 _takeSelection();
72 // HACK!!! invoke the last slot for signal_grabbed (it will be the callback registered
73 // by ControlPointSelection when adding to selection).
74 signal_grabbed.slots().back()(event);
75 }
76 }
77 bool SelectableControlPoint::_clickedHandler(GdkEventButton *event)
78 {
79 if (event->button != 1) return false;
80 if (held_shift(*event)) {
81 if (selected()) {
82 _selection.erase(this);
83 } else {
84 _selection.insert(this);
85 }
86 } else {
87 _takeSelection();
88 }
89 return true;
90 }
92 void SelectableControlPoint::_takeSelection()
93 {
94 _selection.clear();
95 _selection.insert(this);
96 }
98 bool SelectableControlPoint::selected() const
99 {
100 SelectableControlPoint *p = const_cast<SelectableControlPoint*>(this);
101 return _selection.find(p) != _selection.end();
102 }
104 void SelectableControlPoint::_setState(State state)
105 {
106 if (!selected()) {
107 ControlPoint::_setState(state);
108 return;
109 }
111 ColorSet *cset = reinterpret_cast<ColorSet*>(_cset);
112 ColorEntry current = {0, 0};
113 switch (state) {
114 case STATE_NORMAL:
115 current = cset->selected_normal; break;
116 case STATE_MOUSEOVER:
117 current = cset->selected_mouseover; break;
118 case STATE_CLICKED:
119 current = cset->selected_clicked; break;
120 }
121 _setColors(current);
122 _state = state;
123 }
125 } // namespace UI
126 } // namespace Inkscape
128 /*
129 Local Variables:
130 mode:c++
131 c-file-style:"stroustrup"
132 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
133 indent-tabs-mode:nil
134 fill-column:99
135 End:
136 */
137 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :