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::length() const
78 Sequence::size_type GlSequence::leftbase(GLfloat left) const
85 return (Sequence::size_type)left;
88 Sequence::size_type GlSequence::rightbase(GLfloat right) const
92 if (right > seq.size())
95 return (Sequence::size_type)right;
98 Sequence::const_iterator GlSequence::sequence_begin() const
103 Sequence::const_iterator GlSequence::sequence_end() const
108 Sequence::const_iterator
109 GlSequence::sequence_begin(GLfloat left, GLfloat right) const
111 // the following code will be wrong when sequences can be slid around
112 // so make sure we break.
115 if ( leftbase(left) > seq.size() or left > right )
118 return seq.begin() + leftbase(left);
121 Sequence::const_iterator
122 GlSequence::sequence_end(GLfloat left, GLfloat right) const
124 // the following code will be wrong when sequences can be slid around
125 // so make sure we break.
128 if ( rightbase(right) > seq.size() or left > right )
131 return seq.begin() + rightbase(right);
135 //! set default track draw color
136 void GlSequence::setColor(Color &c)
141 //! get default track draw color
142 Color GlSequence::color()
148 int GlSequence::get_viewport_pixel_width()
151 glGetIntegerv(GL_VIEWPORT, viewport);
152 return viewport[3]; // grab the viewport width
155 bool GlSequence::is_sequence_renderable(GLfloat left,
157 int viewport_width) const
159 // if called with default argument, go get the viewable width
160 if (viewport_width == -1) {
161 viewport_width = get_viewport_pixel_width();
163 GLfloat world_width = right - left;
164 GLfloat pixels_needed = (char_pix_per_world_unit * world_width);
166 // if the number of pixels taken up by rendering the characters
167 // that'd show up in the current ortho width is less than the window
168 // width we can actually draw something
169 return pixels_needed < viewport_width;
173 void GlSequence::draw(GLfloat left, GLfloat right) const
175 if ( not is_sequence_renderable(left, right) ) {
176 draw_track(left, right);
178 draw_sequence(left, right);
180 draw_annotations(left, right);
183 void GlSequence::draw_box(GLfloat left, GLfloat right,
184 GLfloat height, GLfloat z) const
186 GLfloat offset = height/2.0;
187 GLfloat top = seq_y + offset;
188 GLfloat bottom = seq_y - offset;
191 glVertex3f(left, top, z);
192 glVertex3f(left, bottom, z);
193 glVertex3f(right, bottom, z);
194 glVertex3f(right, top, z);
197 void GlSequence::draw_track(GLfloat left, GLfloat right) const
199 glColor3fv(drawColor.get());
200 // draw main sequence track
201 draw_box(seq_x, seq_x+seq.size(), seq_height, 0.0);
204 void GlSequence::draw_annotations(GLfloat left, GLfloat right) const
207 glLineWidth(seq_height);
208 GLfloat annotation_z = seq_z + 1.0;
209 const std::list<annot>& annots = seq.annotations();
210 const std::list<motif>& motifs = seq.motifs();
211 for (std::list<annot>::const_iterator annot_itor = annots.begin();
212 annot_itor != annots.end();
213 ++annot_itor, ++annotation_z)
215 glColor3f(0.0, 0.5, 0.0);
216 draw_box(seq_x+annot_itor->start, seq_x+annot_itor->end,
217 seq_height, annotation_z);
220 for (std::list<motif>::const_iterator motifs_itor = motifs.begin();
221 motifs_itor != motifs.end();
222 ++motifs_itor, ++annotation_z)
224 glColor3fv(color_mapper.lookup("motif", motifs_itor->sequence).get());
225 draw_box(seq_x+motifs_itor->start, seq_x+motifs_itor->end,
226 seq_height, annotation_z);
233 const int STROKE = 2;
236 typedef struct charpoint {
242 {0, -5, PT}, {2.5, 5, PT}, {5, -5, STROKE},
243 {0.75, -2, PT}, {4.25, -2, END}
247 {2.5, -5, PT}, {2.5,5, STROKE}, {0, 5, PT}, {5, 5, END}
251 {5, 3, PT}, {3, 5, PT}, {2, 5, PT}, {0, 3, PT}, {0, -3, PT},
252 {2, -5, PT}, {3, -5, PT}, {5, -3, STROKE},
253 {2.5, -1, PT}, {5, -1,PT}, {5, -5, END}
257 {4.9, 3, PT}, {3, 5, PT}, {2, 5, PT}, {0, 3, PT}, {0, -3, PT},
258 {2, -5, PT}, {3, -5, PT}, {5, -3, END}
261 CP Xdata[] = {{ 0, 5, PT}, {5, -5,STROKE},{0,-5,PT},{5, 5, END}};
262 CP Ndata[] = {{ 0, -5, PT}, {0, 5, PT}, {5, -5, PT}, {5, 5, END}};
264 static void drawLetter(CP *l, GLfloat z)
266 glBegin(GL_LINE_STRIP);
270 glVertex3f(l->x, l->y, z);
273 glVertex3f(l->x, l->y, z);
275 glBegin(GL_LINE_STRIP);
278 glVertex3f(l->x, l->y, z);
283 throw runtime_error("data structure failure");
289 void GlSequence::draw_sequence(GLfloat left, GLfloat right) const
291 // FIXME: basically this needs to be greater than the number of annotations
292 const GLfloat z = 30;
294 glColor3fv(drawColor.get());
296 Sequence::const_iterator seq_itor = sequence_begin(left, right);
297 Sequence::const_iterator seq_end = sequence_end(left, right);
298 Sequence::size_type basepair = 0;
300 assert(seq_end - seq_itor >= 0);
301 while(seq_itor != seq_end)
303 assert ( basepair < seq.size() );
305 glTranslatef( leftbase(left) + basepair, seq_y, 1.0 );
306 glScalef(0.1, 1.0, 1.0);
309 drawLetter(Adata, z);
312 drawLetter(Tdata, z);
315 drawLetter(Gdata, z);
318 drawLetter(Cdata, z);
321 drawLetter(Ndata, z);
324 drawLetter(Xdata, z);
333 bool operator==(const GlSequence &left, const GlSequence &right)
335 return ( (left.seq_x == right.seq_x) and
336 (left.seq_y == right.seq_y) and
337 (left.seq_z == right.seq_z) and
338 (left.seq_height == right.seq_height) and
339 (left.drawColor == right.drawColor));