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Added the code to plot the actual Graph.

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This version already plots the dive-graph, with the
gradient and all that jazz. One thing that will be
easily spotted is that the size of the line is very
thick - easily changed, I'm just using the default.
As soon as everything is plotted correctly I'll
fix the lines.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Tomaz Canabrava 2013-05-04 20:18:16 -03:00 • committed by Dirk Hohndel
parent f269f86496
commit adcae4d913
2 changed files with 19 additions and 16 deletions
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32
qt-ui/profilegraphics.cpp
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@ -341,38 +341,38 @@ void ProfileGraphicsView::plot_depth_profile(struct graphics_context *gc, struct
plot_smoothed_profile(gc, pi);
plot_minmax_profile(gc, pi);
}
#endif
/* Do the depth profile for the neat fill */
gc->topy = 0; gc->bottomy = maxdepth;
cairo_pattern_t *pat;
pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, 256.0 * plot_scale);
pattern_add_color_stop_rgba (gc, pat, 1, DEPTH_BOTTOM);
pattern_add_color_stop_rgba (gc, pat, 0, DEPTH_TOP);
cairo_set_source(gc->cr, pat);
cairo_pattern_destroy(pat);
cairo_set_line_width_scaled(gc->cr, 2);
entry = pi->entry;
move_to(gc, 0, 0);
QGraphicsPolygonItem *neatFill = new QGraphicsPolygonItem();
QPolygonF p;
for (i = 0; i < pi->nr; i++, entry++)
line_to(gc, entry->sec, entry->depth);
p.append( QPointF( SCALE(gc, entry->sec, entry->depth) ));
/* Show any ceiling we may have encountered */
for (i = pi->nr - 1; i >= 0; i--, entry--) {
if (entry->ndl) {
/* non-zero NDL implies this is a safety stop, no ceiling */
line_to(gc, entry->sec, 0);
p.append( QPointF( SCALE(gc, entry->sec, 0) ));
} else if (entry->stopdepth < entry->depth) {
line_to(gc, entry->sec, entry->stopdepth);
p.append( QPointF( SCALE(gc, entry->sec, entry->stopdepth) ));
} else {
line_to(gc, entry->sec, entry->depth);
p.append( QPointF( SCALE(gc, entry->sec, entry->depth) ));
}
}
cairo_close_path(gc->cr);
cairo_fill(gc->cr);
neatFill->setPolygon(p);
QLinearGradient pat(0.0,0.0,0.0,p.boundingRect().height());
pat.setColorAt(1, profile_color[DEPTH_BOTTOM].first());
pat.setColorAt(0, profile_color[DEPTH_TOP].first());
neatFill->setBrush(QBrush(pat));
scene()->addItem(neatFill);
#if 0
/* if the user wants the deco ceiling more visible, do that here (this
* basically draws over the background that we had allowed to shine
* through so far) */