1 #include "alg/glsequence.hpp"
9 GlSequence::GlSequence(const Sequence &s, AnnotationColors& cm)
16 drawColor(0.0, 0.0, 0.0),
17 char_pix_per_world_unit(5.0)
21 GlSequence::GlSequence(const GlSequence &s)
26 seq_height(s.seq_height),
27 color_mapper(s.color_mapper),
28 drawColor(s.drawColor),
29 char_pix_per_world_unit(s.char_pix_per_world_unit)
33 GlSequence &GlSequence::operator=(const GlSequence & s)
36 const_cast<Sequence &>(seq) = s.seq;
40 seq_height = s.seq_height;
41 color_mapper = s.color_mapper;
42 drawColor = s.drawColor;
43 assert(char_pix_per_world_unit == s.char_pix_per_world_unit);
48 const Sequence& GlSequence::sequence() const
53 void GlSequence::setX(GLfloat value)
58 GLfloat GlSequence::x() const
63 void GlSequence::setY(GLfloat value)
68 GLfloat GlSequence::y() const
73 GLfloat GlSequence::height() const
78 GLfloat GlSequence::length() const
83 Sequence::size_type GlSequence::leftbase(GLfloat left) const
90 return (Sequence::size_type)left;
93 Sequence::size_type GlSequence::rightbase(GLfloat right) const
97 if (right > seq.size())
100 return (Sequence::size_type)right;
103 Sequence::const_iterator GlSequence::sequence_begin() const
108 Sequence::const_iterator GlSequence::sequence_end() const
113 Sequence::const_iterator
114 GlSequence::sequence_begin(GLfloat left, GLfloat right) const
116 // the following code will be wrong when sequences can be slid around
117 // so make sure we break.
120 if ( leftbase(left) > seq.size() or left > right )
123 return seq.begin() + leftbase(left);
126 Sequence::const_iterator
127 GlSequence::sequence_end(GLfloat left, GLfloat right) const
129 // the following code will be wrong when sequences can be slid around
130 // so make sure we break.
133 if ( rightbase(right) > seq.size() or left > right )
136 return seq.begin() + rightbase(right);
140 //! set default track draw color
141 void GlSequence::setColor(Color &c)
146 //! get default track draw color
147 Color GlSequence::color()
153 int GlSequence::get_viewport_pixel_width()
156 glGetIntegerv(GL_VIEWPORT, viewport);
157 return viewport[3]; // grab the viewport width
160 bool GlSequence::is_sequence_renderable(GLfloat left,
162 int viewport_width) const
164 // if called with default argument, go get the viewable width
165 if (viewport_width == -1) {
166 viewport_width = get_viewport_pixel_width();
168 GLfloat world_width = right - left;
169 GLfloat pixels_needed = (char_pix_per_world_unit * world_width);
171 // if the number of pixels taken up by rendering the characters
172 // that'd show up in the current ortho width is less than the window
173 // width we can actually draw something
174 return pixels_needed < viewport_width;
178 void GlSequence::draw(GLfloat left, GLfloat right) const
180 if ( not is_sequence_renderable(left, right) ) {
181 draw_track(left, right);
183 draw_sequence(left, right);
185 draw_annotations(left, right);
188 void GlSequence::draw_box(GLfloat left, GLfloat right,
189 GLfloat height, GLfloat z) const
191 GLfloat offset = height/2.0;
192 GLfloat top = seq_y + offset;
193 GLfloat bottom = seq_y - offset;
196 glVertex3f(left, top, z);
197 glVertex3f(left, bottom, z);
198 glVertex3f(right, bottom, z);
199 glVertex3f(right, top, z);
203 void GlSequence::draw_track(GLfloat left, GLfloat right) const
205 glColor3fv(drawColor.get());
206 // draw main sequence track
207 draw_box(seq_x, seq_x+seq.size(), seq_height, 0.0);
210 void GlSequence::draw_annotations(GLfloat left, GLfloat right) const
213 glLineWidth(seq_height);
214 GLfloat annotation_z = seq_z + 1.0;
215 const std::list<annot>& annots = seq.annotations();
216 const std::list<motif>& motifs = seq.motifs();
217 for (std::list<annot>::const_iterator annot_itor = annots.begin();
218 annot_itor != annots.end();
219 ++annot_itor, ++annotation_z)
221 glColor3f(0.0, 0.5, 0.0);
222 draw_box(seq_x+annot_itor->start, seq_x+annot_itor->end,
223 seq_height, annotation_z);
226 for (std::list<motif>::const_iterator motifs_itor = motifs.begin();
227 motifs_itor != motifs.end();
228 ++motifs_itor, ++annotation_z)
230 glColor3fv(color_mapper.lookup("motif", motifs_itor->sequence).get());
231 draw_box(seq_x+motifs_itor->start, seq_x+motifs_itor->end,
232 seq_height, annotation_z);
238 const int STROKE = 2;
241 typedef struct charpoint {
247 {0, -5, PT}, {2.5, 5, PT}, {5, -5, STROKE},
248 {0.75, -2, PT}, {4.25, -2, END}
252 {2.5, -5, PT}, {2.5,5, STROKE}, {0, 5, PT}, {5, 5, END}
256 {5, 3, PT}, {3, 5, PT}, {2, 5, PT}, {0, 3, PT}, {0, -3, PT},
257 {2, -5, PT}, {3, -5, PT}, {5, -3, STROKE},
258 {2.5, -1, PT}, {5, -1,PT}, {5, -5, END}
262 {4.9, 3, PT}, {3, 5, PT}, {2, 5, PT}, {0, 3, PT}, {0, -3, PT},
263 {2, -5, PT}, {3, -5, PT}, {5, -3, END}
266 CP Xdata[] = {{ 0, 5, PT}, {5, -5,STROKE},{0,-5,PT},{5, 5, END}};
267 CP Ndata[] = {{ 0, -5, PT}, {0, 5, PT}, {5, -5, PT}, {5, 5, END}};
269 static void drawLetter(CP *l, GLfloat z)
271 glBegin(GL_LINE_STRIP);
275 glVertex3f(l->x, l->y, z);
278 glVertex3f(l->x, l->y, z);
280 glBegin(GL_LINE_STRIP);
283 glVertex3f(l->x, l->y, z);
288 throw runtime_error("data structure failure");
294 void GlSequence::draw_sequence(GLfloat left, GLfloat right) const
296 // FIXME: basically this needs to be greater than the number of annotations
297 const GLfloat z = 30;
299 glColor3fv(drawColor.get());
301 Sequence::const_iterator seq_itor = sequence_begin(left, right);
302 Sequence::const_iterator seq_end = sequence_end(left, right);
303 Sequence::size_type basepair = 0;
305 assert(seq_end - seq_itor >= 0);
306 while(seq_itor != seq_end)
308 assert ( basepair < seq.size() );
310 glTranslatef( leftbase(left) + basepair, seq_y, 1.0 );
311 glScalef(0.1, 1.0, 1.0);
314 drawLetter(Adata, z);
317 drawLetter(Tdata, z);
320 drawLetter(Gdata, z);
323 drawLetter(Cdata, z);
326 drawLetter(Ndata, z);
329 drawLetter(Xdata, z);
338 bool operator==(const GlSequence &left, const GlSequence &right)
340 return ( (left.seq_x == right.seq_x) and
341 (left.seq_y == right.seq_y) and
342 (left.seq_z == right.seq_z) and
343 (left.seq_height == right.seq_height) and
344 (left.drawColor == right.drawColor));