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();
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();
61  Coordf get_cursor_pos_win();
62  Target get_current_target();
63  void set_selection_allowed(bool a);
64  std::pair<float, Coordf> get_scale_and_offset();
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_center(float factor);
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);
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 protected:
194  void push() override;
195  void request_push() override;
196 
197 private:
198  static const int MAT3_XX = 0;
199  static const int MAT3_X0 = 2;
200  static const int MAT3_YY = 4;
201  static const int MAT3_Y0 = 5;
202 
203  float m_width, m_height;
204  glm::mat3 screenmat;
205  float scale = 1e-5;
206  Coord<float> offset;
207  glm::mat3 viewmat;
208  glm::mat3 viewmat_noflip;
209  bool flip_view = false;
210  float view_angle = 0;
211  void update_viewmat();
212  Coordf canvas2screen(const Coordf &p) const;
213 
214  Coord<float> cursor_pos;
215  Coord<int64_t> cursor_pos_grid;
216  bool cursor_external = false;
217 
218  GLuint renderbuffer;
219  GLuint stencilrenderbuffer;
220  GLuint fbo;
221  bool needs_resize = false;
222  enum PushFilter {
223  PF_NONE = 0,
224  PF_TRIANGLES = (1 << 0),
225  PF_CURSOR = (1 << 1),
226  PF_SELECTABLES = (1 << 2),
227  PF_MARKER = (1 << 3),
228  PF_DRAG_SELECTION = (1 << 4),
229  PF_ALL = 0xff
230  };
231  PushFilter push_filter = PF_ALL;
232  void request_push(PushFilter filter);
233 
234  void resize_buffers();
235 
236  Grid grid;
237  DragSelection drag_selection;
238  SelectablesRenderer selectables_renderer;
239  TriangleRenderer triangle_renderer;
240 
241  MarkerRenderer marker_renderer;
242 
243  PictureRenderer picture_renderer;
244 
245  void pan_drag_begin(GdkEventButton *button_event);
246  void pan_drag_end(GdkEventButton *button_event);
247  void pan_drag_move(GdkEventMotion *motion_event);
248  void pan_drag_move(GdkEventScroll *scroll_event);
249  void pan_zoom(GdkEventScroll *scroll_event, bool to_cursor = true);
250  void cursor_move(GdkEvent *motion_event);
251  void hover_prelight_update(GdkEvent *motion_event);
252  bool pan_dragging = false;
253  Coord<float> pan_pointer_pos_orig;
254  Coord<float> pan_offset_orig;
255 
256  void set_scale(float x, float y, float new_scale);
257 
258  bool selection_allowed = true;
259  Glib::Property<int> p_property_work_layer;
260  Glib::Property<float> p_property_layer_opacity;
261 
262  Gtk::Menu *clarify_menu;
263 
264  HighlightMode highlight_mode = HighlightMode::HIGHLIGHT;
265  bool highlight_enabled = false;
266  bool highlight_on_top = false;
267  Appearance appearance;
268 
269  LayerMode layer_mode = LayerMode::AS_IS;
270 
271  bool drag_selection_inhibited = false;
272 
273  MSDAnimator zoom_animator;
274  float zoom_animation_scale_orig = 1;
275  Coordf zoom_animation_pos;
276 
277  Gdk::ModifierType grid_fine_modifier = Gdk::MOD1_MASK;
278  float cursor_size = 20;
279 
280  static const int first_annotation_layer = 20000;
281  int annotation_layer_current = first_annotation_layer;
282  std::map<int, CanvasAnnotation> annotations;
283 
284  void draw_bitmap_text(const Coordf &p, float scale, const std::string &rtext, int angle, ColorP color,
285  int layer) override;
286  std::pair<Coordf, Coordf> measure_bitmap_text(const std::string &text) const override;
287  void draw_bitmap_text_box(const Placement &q, float width, float height, const std::string &s, ColorP color,
288  int layer, TextBoxMode mode) override;
289 
290  SelectionMode selection_mode = SelectionMode::HOVER;
291 
292  Glib::RefPtr<Gtk::GestureZoom> gesture_zoom;
293  void zoom_gesture_begin_cb(GdkEventSequence *seq);
294  void zoom_gesture_update_cb(GdkEventSequence *seq);
295  Coord<float> gesture_zoom_pos_orig;
296  Coord<float> gesture_zoom_offset_orig;
297  float gesture_zoom_scale_orig = 1;
298 
299  Glib::RefPtr<Gtk::GestureDrag> gesture_drag;
300  Coord<float> gesture_drag_offset_orig;
301 
302  void drag_gesture_begin_cb(GdkEventSequence *seq);
303  void drag_gesture_update_cb(GdkEventSequence *seq);
304 
305  bool can_snap_to_target(const Target &t) const;
306 
307  std::vector<ColorI> colors2;
308 
309  bool can_set_scale() const;
310 
311  int last_grid_div = 1;
312 
313 protected:
314  void on_size_allocate(Gtk::Allocation &alloc) override;
315  void on_realize() override;
316  bool on_render(const Glib::RefPtr<Gdk::GLContext> &context) override;
317  bool on_button_press_event(GdkEventButton *button_event) override;
318  bool on_button_release_event(GdkEventButton *button_event) override;
319  bool on_motion_notify_event(GdkEventMotion *motion_event) override;
320  bool on_scroll_event(GdkEventScroll *scroll_event) override;
321  Glib::RefPtr<Gdk::GLContext> on_create_context() override;
322 
323  type_signal_selection_changed s_signal_selection_changed;
324  type_signal_selection_changed s_signal_hover_selection_changed;
325  type_signal_selection_mode_changed s_signal_selection_mode_changed;
326  type_signal_cursor_moved s_signal_cursor_moved;
327  type_signal_grid_mul_changed s_signal_grid_mul_changed;
328  type_signal_request_display_name s_signal_request_display_name;
329  type_signal_can_steal_focus s_signal_can_steal_focus;
330  type_signal_scale_changed s_signal_scale_changed;
331 };
332 } // namespace horizon
Definition: appearance.hpp:7
Definition: annotation.hpp:7
Definition: canvas_gl.hpp:18
Definition: canvas.hpp:22
Definition: common.hpp:234
Definition: drag_selection.hpp:8
Definition: grid.hpp:6
Definition: layer_range.hpp:7
Definition: msd_animator.hpp:5
Definition: marker.hpp:54
Definition: marker.hpp:38
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:9
zip_uint64_t uint64_t
zip_uint64_t_t typedef.
Definition: zip.hpp:108