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#ifndef __SELTRANS_H__
#define __SELTRANS_H__
/*
* Helper object for transforming selected items
*
* Author:
* Lauris Kaplinski <lauris@kaplinski.com>
* Carl Hetherington <inkscape@carlh.net>
*
* Copyright (C) 2006 Johan Engelen <johan@shouraizou.nl>
* Copyright (C) 1999-2002 Lauris Kaplinski
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include <sigc++/sigc++.h>
#include <libnr/nr-point.h>
#include <libnr/nr-matrix.h>
#include <libnr/nr-rect.h>
#include "forward.h"
#include "selcue.h"
#include "message-context.h"
#include <vector>
struct SPKnot;
class SPDesktop;
class SPCanvasItem;
class SPSelTransHandle;
namespace Inkscape
{
namespace XML
{
class Node;
}
class SelTrans
{
public:
SelTrans(SPDesktop *desktop);
~SelTrans();
Inkscape::MessageContext &messageContext() {
return _message_context;
}
void increaseState();
void resetState();
void setCenter(NR::Point const &p);
void grab(NR::Point const &p, gdouble x, gdouble y, bool show_handles);
void transform(NR::Matrix const &rel_affine, NR::Point const &norm);
void ungrab();
void stamp();
void moveTo(NR::Point const &xy, guint state);
void stretch(SPSelTransHandle const &handle, NR::Point &pt, guint state);
void scale(NR::Point &pt, guint state);
void skew(SPSelTransHandle const &handle, NR::Point &pt, guint state);
void rotate(NR::Point &pt, guint state);
gboolean scaleRequest(NR::Point &pt, guint state);
gboolean stretchRequest(SPSelTransHandle const &handle, NR::Point &pt, guint state);
gboolean skewRequest(SPSelTransHandle const &handle, NR::Point &pt, guint state);
gboolean rotateRequest(NR::Point &pt, guint state);
gboolean centerRequest(NR::Point &pt, guint state);
gboolean handleRequest(SPKnot *knot, NR::Point *position, guint state, SPSelTransHandle const &handle);
void handleGrab(SPKnot *knot, guint state, SPSelTransHandle const &handle);
void handleClick(SPKnot *knot, guint state, SPSelTransHandle const &handle);
void handleNewEvent(SPKnot *knot, NR::Point *position, guint state, SPSelTransHandle const &handle);
enum Show
{
SHOW_CONTENT,
SHOW_OUTLINE
};
void setShow(Show s) {
_show = s;
}
bool isEmpty() {
return _empty;
}
bool isGrabbed() {
return _grabbed;
}
private:
void _updateHandles();
void _updateVolatileState();
void _selChanged(Inkscape::Selection *selection);
void _selModified(Inkscape::Selection *selection, guint flags);
void _showHandles(SPKnot *knot[], SPSelTransHandle const handle[], gint num,
gchar const *even_tip, gchar const *odd_tip);
enum State {
STATE_SCALE,
STATE_ROTATE
};
SPDesktop *_desktop;
std::vector<std::pair<SPItem *, NR::Matrix> > _items;
std::vector<std::pair<SPItem *, NR::Point> > _items_centers;
std::vector<NR::Point> _snap_points;
std::vector<NR::Point> _bbox_points;
Inkscape::SelCue _selcue;
Inkscape::Selection *_selection;
State _state;
Show _show;
bool _grabbed;
bool _show_handles;
bool _empty;
bool _changed;
NR::Rect _box;
gdouble _strokewidth;
NR::Matrix _current;
NR::Point _opposite; ///< opposite point to where a scale is taking place
NR::Point _center;
bool _center_is_set; ///< we've already set _center, no need to reread it from items
SPKnot *_shandle[8];
SPKnot *_rhandle[8];
SPKnot *_chandle;
SPCanvasItem *_norm;
SPCanvasItem *_grip;
SPCanvasItem *_l[4];
guint _sel_changed_id;
guint _sel_modified_id;
GSList *_stamp_cache;
NR::Point _origin; ///< position of origin for transforms
NR::Point _point; ///< original position of the knot being used for the current transform
Inkscape::MessageContext _message_context;
SigC::Connection _sel_changed_connection;
SigC::Connection _sel_modified_connection;
};
}
#endif
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
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