1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* Cartesian grid item for the Inkscape canvas.
*//*
* Authors: see git history
*
* Copyright (C) 2018 Authors
* Copyright (C) Johan Engelen 2006-2007 <johan@shouraizou.nl>
* Copyright (C) Lauris Kaplinski 2000
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef INKSCAPE_CANVAS_GRID_H
#define INKSCAPE_CANVAS_GRID_H
#include "ui/widget/alignment-selector.h"
#include "ui/widget/registered-widget.h"
#include "ui/widget/registry.h"
#include "line-snapper.h"
class SPDesktop;
class SPNamedView;
class SPDocument;
namespace Gtk {
class Widget;
}
namespace Inkscape {
class Snapper;
class CanvasItemBuffer;
class CanvasItemGrid;
namespace XML {
class Node;
}
namespace Util {
class Unit;
}
enum GridType {
GRID_RECTANGULAR = 0,
GRID_AXONOMETRIC = 1
};
#define GRID_MAXTYPENR 1
#define GRID_DEFAULT_COLOR 0x0099e526
#define GRID_DEFAULT_EMPCOLOR 0x0099e54d
class CanvasGrid {
public:
virtual ~CanvasGrid();
// TODO: see effect.h and effect.cpp from live_effects how to link enums to SVGname to typename properly. (johan)
const char * getName() const;
const char * getSVGName() const;
GridType getGridType() const;
static const char * getName(GridType type);
static const char * getSVGName(GridType type);
static GridType getGridTypeFromSVGName(const char * typestr);
static GridType getGridTypeFromName(const char * typestr);
static CanvasGrid* NewGrid(SPNamedView * nv, Inkscape::XML::Node * repr, SPDocument *doc, GridType gridtype);
static void writeNewGridToRepr(Inkscape::XML::Node * repr, SPDocument * doc, GridType gridtype);
Inkscape::CanvasItemGrid * createCanvasItem(SPDesktop * desktop);
void removeCanvasItem(Inkscape::CanvasItemGrid *item);
virtual void Update (Geom::Affine const &affine, unsigned int flags) = 0;
virtual void Render (Inkscape::CanvasItemBuffer *buf) = 0;
virtual void readRepr() = 0;
virtual void onReprAttrChanged (Inkscape::XML::Node * /*repr*/, char const */*key*/, char const */*oldval*/, char const */*newval*/, bool /*is_interactive*/) = 0;
Gtk::Widget * newWidget();
static void *notifyWidgetsDestroyed(void *data);
void setOrigin(Geom::Point const &origin_px); /**< writes new origin (specified in px units) to SVG */
Geom::Point origin; /**< Origin of the grid */
guint32 color; /**< Color for normal lines */
guint32 empcolor; /**< Color for emphasis lines */
gint empspacing; /**< Spacing between emphasis lines */
Inkscape::Util::Unit const* gridunit; /**< points to Unit object in UnitTable (so don't delete it) */
Inkscape::XML::Node * repr;
SPDocument *doc;
Inkscape::Snapper* snapper;
static void on_repr_attr_changed (Inkscape::XML::Node * repr, const gchar *key, const gchar *oldval, const gchar *newval, bool is_interactive, void * data);
bool isLegacy() const { return legacy; }
bool isPixel() const { return pixel; }
bool isVisible() const { return (isEnabled() &&visible); };
bool isEnabled() const;
void align_clicked(int align);
protected:
CanvasGrid(SPNamedView * nv, Inkscape::XML::Node * in_repr, SPDocument *in_doc, GridType type);
virtual Gtk::Widget * newSpecificWidget() = 0;
std::vector<Inkscape::CanvasItemGrid *> canvas_item_grids; // List of created CanvasGridItem's.
SPNamedView * namedview;
Inkscape::UI::Widget::Registry _wr;
bool visible;
bool render_dotted;
GridType gridtype;
// For dealing with old Inkscape SVG files (pre 0.92)
bool legacy;
bool pixel;
Inkscape::UI::Widget::RegisteredCheckButton *_rcb_enabled = nullptr;
Inkscape::UI::Widget::RegisteredCheckButton *_rcb_snap_visible_only = nullptr;
Inkscape::UI::Widget::RegisteredCheckButton *_rcb_visible = nullptr;
Inkscape::UI::Widget::RegisteredCheckButton *_rcb_dotted = nullptr;
Inkscape::UI::Widget::AlignmentSelector *_as_alignment = nullptr;
private:
CanvasGrid(const CanvasGrid&) = delete;
CanvasGrid& operator=(const CanvasGrid&) = delete;
};
class CanvasXYGrid : public CanvasGrid {
public:
CanvasXYGrid(SPNamedView * nv, Inkscape::XML::Node * in_repr, SPDocument * in_doc);
~CanvasXYGrid() override;
virtual void Scale (Geom::Scale const &scale);
void Update (Geom::Affine const &affine, unsigned int flags) override;
void Render (Inkscape::CanvasItemBuffer *buf) override;
void readRepr() override;
void onReprAttrChanged (Inkscape::XML::Node * repr, char const *key, char const *oldval, char const *newval, bool is_interactive) override;
Geom::Point spacing; /**< Spacing between elements of the grid */
bool scaled[2]; /**< Whether the grid is in scaled mode, which can
be different in the X or Y direction, hence two
variables */
Geom::Point ow; /**< Transformed origin by the affine for the zoom */
Geom::Point sw[2]; /**< Transformed spacing by the affine for the zoom */
protected:
Gtk::Widget * newSpecificWidget() override;
private:
CanvasXYGrid(const CanvasXYGrid&) = delete;
CanvasXYGrid& operator=(const CanvasXYGrid&) = delete;
void updateWidgets();
Inkscape::UI::Widget::RegisteredUnitMenu *_rumg = nullptr;
Inkscape::UI::Widget::RegisteredScalarUnit *_rsu_ox = nullptr;
Inkscape::UI::Widget::RegisteredScalarUnit *_rsu_oy = nullptr;
Inkscape::UI::Widget::RegisteredScalarUnit *_rsu_sx = nullptr;
Inkscape::UI::Widget::RegisteredScalarUnit *_rsu_sy = nullptr;
Inkscape::UI::Widget::RegisteredColorPicker *_rcp_gcol = nullptr;
Inkscape::UI::Widget::RegisteredColorPicker *_rcp_gmcol = nullptr;
Inkscape::UI::Widget::RegisteredSuffixedInteger *_rsi = nullptr;
};
class CanvasXYGridSnapper : public LineSnapper
{
public:
CanvasXYGridSnapper(CanvasXYGrid *grid, SnapManager *sm, Geom::Coord const d);
bool ThisSnapperMightSnap() const override;
Geom::Coord getSnapperTolerance() const override; //returns the tolerance of the snapper in screen pixels (i.e. independent of zoom)
bool getSnapperAlwaysSnap() const override; //if true, then the snapper will always snap, regardless of its tolerance
private:
LineList _getSnapLines(Geom::Point const &p) const override;
void _addSnappedLine(IntermSnapResults &isr, Geom::Point const &snapped_point, Geom::Coord const &snapped_distance, SnapSourceType const &source, long source_num, Geom::Point const &normal_to_line, const Geom::Point &point_on_line) const override;
void _addSnappedPoint(IntermSnapResults &isr, Geom::Point const &snapped_point, Geom::Coord const &snapped_distance, SnapSourceType const &source, long source_num, bool constrained_snap) const override;
void _addSnappedLinePerpendicularly(IntermSnapResults &isr, Geom::Point const &snapped_point, Geom::Coord const &snapped_distance, SnapSourceType const &source, long source_num, bool constrained_snap) const override;
CanvasXYGrid *grid;
};
}; /* namespace Inkscape */
#endif
|
