Horizon
canvas_gl.hpp
1 #pragma once
2 #include "canvas.hpp"
3 #include "drag_selection.hpp"
4 #include "grid.hpp"
5 #include "marker.hpp"
6 #include "triangle_renderer.hpp"
7 #include "selectables_renderer.hpp"
8 #include "util/msd_animator.hpp"
9 #include <gtkmm.h>
10 #include <glm/glm.hpp>
11 #include "appearance.hpp"
12 #include "annotation.hpp"
13 #include "snap_filter.hpp"
14 #include "picture_renderer.hpp"
15 #include "selection_filter.hpp"
16 
17 namespace horizon {
18 class CanvasGL : public Canvas, public Gtk::GLArea {
19  friend Grid;
20  friend DragSelection;
21  friend SelectablesRenderer;
22  friend TriangleRenderer;
23  friend MarkerRenderer;
24  friend Markers;
25  friend CanvasAnnotation;
26  friend PictureRenderer;
27 
28 public:
29  CanvasGL();
30 
31  enum class SelectionMode { HOVER, NORMAL };
32  void set_selection_mode(SelectionMode mode);
33  SelectionMode get_selection_mode() const;
34  typedef sigc::signal<void, SelectionMode> type_signal_selection_mode_changed;
35  type_signal_selection_mode_changed signal_selection_mode_changed()
36  {
37  return s_signal_selection_mode_changed;
38  }
39 
40  enum class SelectionTool { BOX, LASSO, PAINT };
41  SelectionTool selection_tool = SelectionTool::BOX;
42 
43  enum class SelectionQualifier { INCLUDE_ORIGIN, INCLUDE_BOX, TOUCH_BOX, AUTO };
44  SelectionQualifier selection_qualifier = SelectionQualifier::INCLUDE_ORIGIN;
45 
46  enum class HighlightMode { HIGHLIGHT, DIM, SHADOW };
47  void set_highlight_mode(HighlightMode mode);
48  HighlightMode get_highlight_mode() const;
49  void set_highlight_enabled(bool x);
50  void set_highlight_on_top(bool on_top);
51 
52  enum class LayerMode { AS_IS, WORK_ONLY, SHADOW_OTHER };
53  void set_layer_mode(LayerMode mode);
54 
55  std::set<SelectableRef> get_selection() const;
56  void set_selection(const std::set<SelectableRef> &sel, bool emit = true);
57  void select_all();
58  void set_cursor_pos(const Coordi &c);
59  void set_cursor_external(bool v);
60  Coordi get_cursor_pos() const;
61  Coordf get_cursor_pos_win() const;
62  Target get_current_target() const;
63  void set_selection_allowed(bool a);
64  std::pair<float, Coordf> get_scale_and_offset() const;
65  void set_scale_and_offset(float sc, Coordf ofs);
66  Coordi snap_to_grid(const Coordi &c, unsigned int div = 1) const;
67 
68  void set_flip_view(bool fl);
69  bool get_flip_view() const override;
70 
71  void set_view_angle(float a);
72  float get_view_angle() const override;
73 
74  void set_cursor_size(float size);
75  void set_cursor_size(Appearance::CursorSize);
76 
77  void clear() override;
78 
79  typedef sigc::signal<void> type_signal_selection_changed;
80  type_signal_selection_changed signal_selection_changed()
81  {
82  return s_signal_selection_changed;
83  }
84 
85  type_signal_selection_changed signal_hover_selection_changed()
86  {
87  return s_signal_hover_selection_changed;
88  }
89 
90  typedef sigc::signal<void, const Coordi &> type_signal_cursor_moved;
91  type_signal_cursor_moved signal_cursor_moved()
92  {
93  return s_signal_cursor_moved;
94  }
95 
96  typedef sigc::signal<void, unsigned int> type_signal_grid_mul_changed;
97  type_signal_grid_mul_changed signal_grid_mul_changed()
98  {
99  return s_signal_grid_mul_changed;
100  }
101  unsigned int get_grid_mul() const
102  {
103  return grid.mul;
104  }
105 
106  typedef sigc::signal<std::string, const SelectableRef &> type_signal_request_display_name;
107  type_signal_request_display_name signal_request_display_name()
108  {
109  return s_signal_request_display_name;
110  }
111 
112  typedef sigc::signal<void, bool &> type_signal_can_steal_focus;
113  type_signal_can_steal_focus signal_can_steal_focus()
114  {
115  return s_signal_can_steal_focus;
116  }
117 
118  typedef sigc::signal<void> type_signal_scale_changed;
119  type_signal_scale_changed signal_scale_changed()
120  {
121  return s_signal_scale_changed;
122  }
123 
124  void center_and_zoom(const Coordf &center, float scale = -1);
125  void zoom_to_bbox(const Coordf &a, const Coordf &b);
126  void zoom_to_bbox(const std::pair<Coordf, Coordf> &bb);
127  void ensure_min_size(float w, float h);
128  void zoom_to(const Coordf &c, float inc);
129 
130  Glib::PropertyProxy<int> property_work_layer()
131  {
132  return p_property_work_layer.get_proxy();
133  }
134  Glib::PropertyProxy<float> property_layer_opacity()
135  {
136  return p_property_layer_opacity.get_proxy();
137  }
138  Glib::PropertyProxy_ReadOnly<float> property_layer_opacity() const
139  {
140  return Glib::PropertyProxy_ReadOnly<float>(this, "layer-opacity");
141  }
142  Markers markers;
143  void update_markers() override;
144 
145  std::set<SelectableRef> get_selection_at(const Coordi &c) const;
146  Coordf screen2canvas(const Coordf &p) const;
147  void update_cursor_pos(double x, double y);
148 
149  const Appearance &get_appearance() const;
150  void set_appearance(const Appearance &a);
151  const Color &get_color(ColorP colorp) const;
152 
153  bool touchpad_pan = false;
154 
155  bool smooth_zoom = true;
156  bool snap_to_targets = true;
157 
158  float zoom_base = 1.5;
159 
160  void inhibit_drag_selection();
161 
162  int _animate_step(GdkFrameClock *frame_clock);
163 
164  float get_width() const
165  {
166  return m_width;
167  }
168  float get_height() const
169  {
170  return m_height;
171  }
172 
173  CanvasAnnotation *create_annotation();
174  void remove_annotation(CanvasAnnotation *a);
175  bool layer_is_annotation(int l) const;
176 
177  std::set<SnapFilter> snap_filter;
178 
179  void set_grid_spacing(uint64_t x, uint64_t y);
180  void set_grid_spacing(uint64_t s);
181  Coordi get_grid_spacing() const;
182  void set_grid_origin(const Coordi &c);
183 
184  SelectionFilter selection_filter;
185 
186  bool layer_is_visible(int layer) const;
187  bool layer_is_visible(LayerRange layer) const;
188 
189  void set_colors2(const std::vector<ColorI> &c);
190 
191  int get_last_grid_div() const;
192 
193  void append_target(const Target &target);
194 
195 protected:
196  void push() override;
197  void request_push() override;
198 
199 private:
200  static const int MAT3_XX = 0;
201  static const int MAT3_X0 = 2;
202  static const int MAT3_YY = 4;
203  static const int MAT3_Y0 = 5;
204 
205  float m_width, m_height;
206  glm::mat3 screenmat;
207  float scale = 1e-5;
208  Coord<float> offset;
209  glm::mat3 viewmat;
210  glm::mat3 viewmat_noflip;
211  bool flip_view = false;
212  float view_angle = 0;
213  void update_viewmat();
214  Coordf canvas2screen(const Coordf &p) const;
215 
216  Coord<float> cursor_pos;
217  Coord<int64_t> cursor_pos_grid;
218  bool cursor_external = false;
219 
220  GLuint renderbuffer;
221  GLuint stencilrenderbuffer;
222  GLuint fbo;
223  bool needs_resize = false;
224  enum PushFilter {
225  PF_NONE = 0,
226  PF_TRIANGLES = (1 << 0),
227  PF_CURSOR = (1 << 1),
228  PF_SELECTABLES = (1 << 2),
229  PF_MARKER = (1 << 3),
230  PF_DRAG_SELECTION = (1 << 4),
231  PF_ALL = 0xff
232  };
233  PushFilter push_filter = PF_ALL;
234  void request_push(PushFilter filter);
235 
236  void resize_buffers();
237 
238  Grid grid;
239  DragSelection drag_selection;
240  SelectablesRenderer selectables_renderer;
241  TriangleRenderer triangle_renderer;
242 
243  MarkerRenderer marker_renderer;
244 
245  PictureRenderer picture_renderer;
246 
247  void pan_drag_begin(GdkEventButton *button_event);
248  void pan_drag_end(GdkEventButton *button_event);
249  void pan_drag_move(GdkEventMotion *motion_event);
250  void pan_drag_move(GdkEventScroll *scroll_event);
251  void pan_zoom(GdkEventScroll *scroll_event, bool to_cursor = true);
252  void start_smooth_zoom(const Coordf &c, float inc);
253  void cursor_move(GdkEvent *motion_event);
254  void hover_prelight_update(GdkEvent *motion_event);
255  bool pan_dragging = false;
256  Coord<float> pan_pointer_pos_orig;
257  Coord<float> pan_offset_orig;
258 
259  void set_scale(float x, float y, float new_scale);
260 
261  bool selection_allowed = true;
262  Glib::Property<int> p_property_work_layer;
263  Glib::Property<float> p_property_layer_opacity;
264 
265  Gtk::Menu *clarify_menu;
266 
267  HighlightMode highlight_mode = HighlightMode::HIGHLIGHT;
268  bool highlight_enabled = false;
269  bool highlight_on_top = false;
270  Appearance appearance;
271 
272  LayerMode layer_mode = LayerMode::AS_IS;
273 
274  bool drag_selection_inhibited = false;
275 
276  MSDAnimator zoom_animator;
277  float zoom_animation_scale_orig = 1;
278  Coordf zoom_animation_pos;
279 
280  Gdk::ModifierType grid_fine_modifier = Gdk::MOD1_MASK;
281  float cursor_size = 20;
282 
283  static const int first_annotation_layer = 20000;
284  int annotation_layer_current = first_annotation_layer;
285  std::map<int, CanvasAnnotation> annotations;
286 
287  void draw_bitmap_text(const Coordf &p, float scale, const std::string &rtext, int angle, ColorP color,
288  int layer) override;
289  std::pair<Coordf, Coordf> measure_bitmap_text(const std::string &text) const override;
290  void draw_bitmap_text_box(const Placement &q, float width, float height, const std::string &s, ColorP color,
291  int layer, TextBoxMode mode) override;
292 
293  SelectionMode selection_mode = SelectionMode::HOVER;
294 
295  Glib::RefPtr<Gtk::GestureZoom> gesture_zoom;
296  void zoom_gesture_begin_cb(GdkEventSequence *seq);
297  void zoom_gesture_update_cb(GdkEventSequence *seq);
298  Coord<float> gesture_zoom_pos_orig;
299  Coord<float> gesture_zoom_offset_orig;
300  float gesture_zoom_scale_orig = 1;
301 
302  Glib::RefPtr<Gtk::GestureDrag> gesture_drag;
303  Coord<float> gesture_drag_offset_orig;
304 
305  void drag_gesture_begin_cb(GdkEventSequence *seq);
306  void drag_gesture_update_cb(GdkEventSequence *seq);
307 
308  bool can_snap_to_target(const Target &t) const;
309 
310  std::vector<ColorI> colors2;
311 
312  bool can_set_scale() const;
313 
314  int last_grid_div = 1;
315 
316 protected:
317  void on_size_allocate(Gtk::Allocation &alloc) override;
318  void on_realize() override;
319  bool on_render(const Glib::RefPtr<Gdk::GLContext> &context) override;
320  bool on_button_press_event(GdkEventButton *button_event) override;
321  bool on_button_release_event(GdkEventButton *button_event) override;
322  bool on_motion_notify_event(GdkEventMotion *motion_event) override;
323  bool on_scroll_event(GdkEventScroll *scroll_event) override;
324  Glib::RefPtr<Gdk::GLContext> on_create_context() override;
325 
326  type_signal_selection_changed s_signal_selection_changed;
327  type_signal_selection_changed s_signal_hover_selection_changed;
328  type_signal_selection_mode_changed s_signal_selection_mode_changed;
329  type_signal_cursor_moved s_signal_cursor_moved;
330  type_signal_grid_mul_changed s_signal_grid_mul_changed;
331  type_signal_request_display_name s_signal_request_display_name;
332  type_signal_can_steal_focus s_signal_can_steal_focus;
333  type_signal_scale_changed s_signal_scale_changed;
334 };
335 } // namespace horizon
Definition: appearance.hpp:7
Definition: annotation.hpp:7
Definition: canvas_gl.hpp:18
Definition: canvas.hpp:24
Definition: common.hpp:267
Definition: drag_selection.hpp:8
Definition: grid.hpp:6
Definition: layer_range.hpp:7
Definition: msd_animator.hpp:5
Definition: marker.hpp:57
Definition: marker.hpp:39
Definition: picture_renderer.hpp:11
Definition: placement.hpp:8
Definition: selectables_renderer.hpp:5
Definition: selection_filter.hpp:6
Definition: target.hpp:7
Definition: triangle_renderer.hpp:10
zip_uint64_t uint64_t
zip_uint64_t_t typedef.
Definition: zip.hpp:108