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 //! zoom out far enough to show the full size of the sequence
46 //! zoom in to a reasonable sequence view
47 double zoomToSequence();
48 //! set the current zoom level in (base pairs / pix )
49 /*! its a double as zoom levels of [0.01, 1.0] make nice sequence views
51 void setZoom(double zoom_level);
52 //! returns the current zoom level
55 void setColorMapper(AnnotationColors& cm);
56 AnnotationColors& colorMapper();
58 //! clear our tracks and connections
61 //! add a sequence to the back of our track container
62 void push_sequence(const Sequence &s);
63 //! add a glsequence to the back of our track container
64 void push_sequence(GlSequence &s);
65 //! return our track container
66 const std::vector<GlSequence>& sequences() const;
68 //! clear all the line segments between all the sequences
71 void link(const std::vector<int>& path, const std::vector<bool>& isRC, int length);
72 //! returns the index of pathids based on order added by link
73 const std::set<int>& selectedPaths() const;
74 //! center the provided path in the current viewport
75 void centerOnPath(const std::vector<int>&);
77 //! Provide a logical name for a type discriminator for our glName stack
78 enum FeatureType { MussaTrack, MussaSegment };
80 //! a useful point class
81 template<class T> struct point {
85 point(T x_, T y_):x(x_), y(y_) {}
88 //! a useful rectangle, where 0,0 is in the lower left
89 template<class T> struct rect {
96 rect(T t, T l, T b, T r) : top(t), left(l), bottom(b), right(r) {}
97 T width() { return right - left; }
98 T height() { return top - bottom; }
106 std::set<int> path_ids;
108 Segment() : start(0.0, 0.0), end(0.0, 0.0) {}
109 Segment(float x1, float y1, float x2, float y2, bool isRC)
110 : start(x1, y1), end(x2, y2), reversed(isRC) {}
113 //! data structure holding our line segments
114 /*! the vector is of size track_container.size()-1
115 * it's indexed by the pair x1, x2 (the two x coordinates between
118 typedef std::pair<int, int> segment_key;
119 typedef std::map<segment_key, Segment> pair_segment_map;
120 typedef std::vector<pair_segment_map> path_segment_map_vector;
121 path_segment_map_vector path_segments;
123 //! recalculate the viewable world
124 /*! depending on the size of our canvas, our zoom level and
125 * how far we've been offset
127 void update_viewport(float center, double new_zoom);
129 //! determine where all the tracks should be placed
130 void update_layout();
132 //! convert opengl selections into the list of paths we should highlight
133 void processSelection(GLuint hits, GLuint buffer[], GLuint bufsize);
135 //! master scene drawing function
136 /*! draw is broken out for the opengl selection code
139 //! draw glsequence tracks
140 void draw_tracks() const;
141 //! draw line segments between tracks
142 void draw_segments() const;
143 //! draw selection box
144 void draw_selection() const;
146 //! number of pixels to reserve around the edges of our canvas
147 const int border_width;
148 //! the current viewable region (world coord)
149 rect<float> cur_ortho;
150 //! how many pixels our viewport is (screen coord)
151 point<int> viewport_size;
152 //! the center of our current viewport (world coord) (used for scrollbar)
153 float viewport_center;
155 AnnotationColors color_mapper;
156 //! container of all the GlSequences loaded into our scene
157 std::vector<GlSequence> track_container;
158 //! counter for each path added to us via connect
162 //! where to draw our box
163 rect<float> selectedRegion;
164 //! true if we have a selection
166 //! indicate which paths are selected
167 std::set<int> selected_paths;
168 //! which track is selected (it only makes sense to have one track selected).
169 std::set<int> selected_tracks;