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
48 //! set the current zoom level in (base pairs / pix ) * 100
49 /*! a zoomlevel of 1 is .01 base pairs per pixel or a rather exploded
50 * 100 pixels per base pair
52 void setZoom(int zoom_level);
53 //! returns the current zoom level
56 void setColorMapper(AnnotationColors& cm);
57 AnnotationColors& colorMapper();
59 //! clear our tracks and connections
62 //! add a sequence to the back of our track container
63 void push_sequence(const Sequence &s);
64 //! add a glsequence to the back of our track container
65 void push_sequence(GlSequence &s);
66 //! return our track container
67 const std::vector<GlSequence>& sequences() const;
69 //! clear all the line segments between all the sequences
72 void link(const std::vector<int>& path, const std::vector<bool>& isRC, int length);
73 //! returns the index of pathids based on order added by link
74 const std::set<int>& selectedPaths() const;
75 //! center the provided path in the current viewport
76 void centerOnPath(const std::vector<int>&);
78 //! Provide a logical name for a type discriminator for our glName stack
79 enum FeatureType { MussaTrack, MussaSegment };
81 //! a useful point class
82 template<class T> struct point {
86 point(T x_, T y_):x(x_), y(y_) {}
89 //! a useful rectangle, where 0,0 is in the lower left
90 template<class T> struct rect {
97 rect(T t, T l, T b, T r) : top(t), left(l), bottom(b), right(r) {}
98 T width() { return right - left; }
99 T height() { return top - bottom; }
107 std::set<int> path_ids;
109 Segment() : start(0.0, 0.0), end(0.0, 0.0) {}
110 Segment(float x1, float y1, float x2, float y2, bool isRC)
111 : start(x1, y1), end(x2, y2), reversed(isRC) {}
114 //! data structure holding our line segments
115 /*! the vector is of size track_container.size()-1
116 * it's indexed by the pair x1, x2 (the two x coordinates between
119 typedef std::pair<int, int> segment_key;
120 typedef std::map<segment_key, Segment> pair_segment_map;
121 typedef std::vector<pair_segment_map> path_segment_map_vector;
122 path_segment_map_vector path_segments;
124 //! recalculate the viewable world
125 /*! depending on the size of our canvas, our zoom level and
126 * how far we've been offset
128 void update_viewport(float center, int new_zoom);
130 //! determine where all the tracks should be placed
131 void update_layout();
133 //! convert opengl selections into the list of paths we should highlight
134 void processSelection(GLuint hits, GLuint buffer[], GLuint bufsize);
136 //! master scene drawing function
137 /*! draw is broken out for the opengl selection code
140 //! draw glsequence tracks
141 void draw_tracks() const;
142 //! draw line segments between tracks
143 void draw_segments() const;
144 //! draw selection box
145 void draw_selection() const;
147 //! number of pixels to reserve around the edges of our canvas
148 const int border_width;
149 //! the current viewable region (world coord)
150 rect<float> cur_ortho;
151 //! how many pixels our viewport is (screen coord)
152 point<int> viewport_size;
153 //! the center of our current viewport (world coord) (used for scrollbar)
154 float viewport_center;
156 AnnotationColors color_mapper;
157 //! container of all the GlSequences loaded into our scene
158 std::vector<GlSequence> track_container;
159 //! counter for each path added to us via connect
163 //! where to draw our box
164 rect<float> selectedRegion;
165 //! true if we have a selection
167 //! indicate which paths are selected
168 std::set<int> selected_paths;
169 //! which track is selected (it only makes sense to have one track selected).
170 std::set<int> selected_tracks;