8 #include "alg/annotation_colors.hpp"
9 #include "alg/sequence.hpp"
10 #include "alg/glsequence.hpp"
12 //! Manage rendering a collection of glSequences
17 GlSeqBrowser(const GlSeqBrowser&);
19 //! setup the opengl canvas
21 //! called when our screen canvas is resized
22 void resizeGL(int width, int height);
26 //! select a region (using canvas coordinates)
27 void GlSeqBrowser::selectRegion(int top, int left, int bottom, int right);
32 //! max world left coordinate
34 //! max world right coordinate
37 void setViewportCenter(float x);
38 float viewportLeft() const;
39 float viewportCenter() const;
40 float viewportRight() const;
41 float viewportHeight() const;
42 float viewportWidth() const;
44 void setZoom(int zoom_level);
47 void setColorMapper(AnnotationColors& cm);
48 AnnotationColors& colorMapper();
50 //! clear our tracks and connections
53 //! add a sequence to the back of our track container
54 void push_sequence(const Sequence &s);
55 //! add a glsequence to the back of our track container
56 void push_sequence(GlSequence &s);
57 //! return our track container
58 const std::vector<GlSequence>& sequences() const;
60 //! clear all the line segments between all the sequences
63 void link(const std::vector<int>& path, const std::vector<bool>& isRC, int length);
64 //! returns the index of pathids based on order added by link
65 const std::set<int>& selectedPaths() const;
66 //! center the provided path in the current viewport
67 void centerOnPath(const std::vector<int>&);
69 //! Provide a logical name for a type discriminator for our glName stack
70 enum FeatureType { MussaTrack, MussaSegment };
72 //! a useful point class
73 template<class T> struct point {
77 point(T x_, T y_):x(x_), y(y_) {}
80 //! a useful rectangle, where 0,0 is in the lower left
81 template<class T> struct rect {
88 rect(T t, T l, T b, T r) : top(t), left(l), bottom(b), right(r) {}
89 T width() { return right - left; }
90 T height() { return top - bottom; }
98 std::set<int> path_ids;
100 Segment() : start(0.0, 0.0), end(0.0, 0.0) {}
101 Segment(float x1, float y1, float x2, float y2, bool isRC)
102 : start(x1, y1), end(x2, y2), reversed(isRC) {}
105 //! data structure holding our line segments
106 /*! the vector is of size track_container.size()-1
107 * it's indexed by the pair x1, x2 (the two x coordinates between
110 typedef std::pair<int, int> segment_key;
111 typedef std::map<segment_key, Segment> pair_segment_map;
112 typedef std::vector<pair_segment_map> path_segment_map_vector;
113 path_segment_map_vector path_segments;
115 //! recalculate the viewable world
116 /*! depending on the size of our canvas, our zoom level and
117 * how far we've been offset
119 void update_viewport(float center, int new_zoom);
121 //! determine where all the tracks should be placed
122 void update_layout();
124 //! convert opengl selections into the list of paths we should highlight
125 void processSelection(GLuint hits, GLuint buffer[], GLuint bufsize);
127 //! master scene drawing function
128 /*! draw is broken out for the opengl selection code
131 //! draw glsequence tracks
132 void draw_tracks() const;
133 //! draw line segments between tracks
134 void draw_segments() const;
135 //! draw selection box
136 void draw_selection() const;
138 //! number of pixels to reserve around the edges of our canvas
139 const int border_width;
140 //! the maximum dimensions that our scene is taking up (world coord)
141 rect<float> max_ortho;
142 //! the current viewable region (world coord)
143 rect<float> cur_ortho;
144 //! how many pixels our viewport is (screen coord)
145 point<int> viewport_size;
146 //! the center of our current viewport (world coord) (used for scrollbar)
147 float viewport_center;
149 AnnotationColors color_mapper;
150 //! container of all the GlSequences loaded into our scene
151 std::vector<GlSequence> track_container;
152 //! counter for each path added to us via connect
156 //! where to draw our box
157 rect<float> selectedRegion;
158 //! true if we have a selection
160 //! indicate which paths are selected
161 std::set<int> selected_paths;
162 //! which track is selected (it only makes sense to have one track selected).
163 std::set<int> selected_tracks;