1 /** @file
2 * Affine transform handles component
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 #ifndef SEEN_UI_TOOL_TRANSFORM_HANDLE_SET_H
12 #define SEEN_UI_TOOL_TRANSFORM_HANDLE_SET_H
14 #include <memory>
15 #include <gdk/gdk.h>
16 #include <2geom/forward.h>
17 #include "ui/tool/commit-events.h"
18 #include "ui/tool/manipulator.h"
20 class SPDesktop;
21 class CtrlRect;
22 namespace Inkscape {
23 namespace UI {
25 //class TransformHandle;
26 class RotateHandle;
27 class SkewHandle;
28 class ScaleCornerHandle;
29 class ScaleSideHandle;
30 class RotationCenter;
32 class TransformHandleSet : public Manipulator {
33 public:
34 enum Mode {
35 MODE_SCALE,
36 MODE_ROTATE_SKEW
37 };
39 TransformHandleSet(SPDesktop *d, SPCanvasGroup *th_group);
40 virtual ~TransformHandleSet();
41 virtual bool event(GdkEvent *);
43 bool visible() { return _visible; }
44 Mode mode() { return _mode; }
45 Geom::Rect bounds();
46 void setVisible(bool v);
47 void setMode(Mode);
48 void setBounds(Geom::Rect const &, bool preserve_center = false);
50 bool transforming() { return _in_transform; }
51 ControlPoint &rotationCenter();
53 sigc::signal<void, Geom::Matrix const &> signal_transform;
54 sigc::signal<void, CommitEvent> signal_commit;
55 private:
56 void _emitTransform(Geom::Matrix const &);
57 void _setActiveHandle(ControlPoint *h);
58 void _clearActiveHandle();
59 void _updateVisibility(bool v);
60 union {
61 ControlPoint *_handles[17];
62 struct {
63 ScaleCornerHandle *_scale_corners[4];
64 ScaleSideHandle *_scale_sides[4];
65 RotateHandle *_rot_corners[4];
66 SkewHandle *_skew_sides[4];
67 RotationCenter *_center;
68 };
69 };
70 ControlPoint *_active;
71 SPCanvasGroup *_transform_handle_group;
72 CtrlRect *_trans_outline;
73 Mode _mode;
74 bool _in_transform;
75 bool _visible;
76 bool _rot_center_visible;
77 friend class TransformHandle;
78 friend class RotationCenter;
79 };
81 } // namespace UI
82 } // namespace Inkscape
84 #endif
86 /*
87 Local Variables:
88 mode:c++
89 c-file-style:"stroustrup"
90 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
91 indent-tabs-mode:nil
92 fill-column:99
93 End:
94 */
95 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :