diff options
Diffstat (limited to 'source/blender/editors/space_graph/graph_draw.c')
| -rw-r--r-- | source/blender/editors/space_graph/graph_draw.c | 112 |
1 files changed, 111 insertions, 1 deletions
diff --git a/source/blender/editors/space_graph/graph_draw.c b/source/blender/editors/space_graph/graph_draw.c index 256c90a1f1a..bdf93b98f22 100644 --- a/source/blender/editors/space_graph/graph_draw.c +++ b/source/blender/editors/space_graph/graph_draw.c @@ -712,7 +712,7 @@ static void draw_fcurve_curve_bezts(bAnimContext *ac, ID *id, FCurve *fcu, View2 v1[1] = prevbezt->vec[1][1]; v2[0] = prevbezt->vec[2][0]; v2[1] = prevbezt->vec[2][1]; - + v3[0] = bezt->vec[0][0]; v3[1] = bezt->vec[0][1]; v4[0] = bezt->vec[1][0]; @@ -772,6 +772,111 @@ static void draw_fcurve_curve_bezts(bAnimContext *ac, ID *id, FCurve *fcu, View2 glEnd(); } +/* Debugging -------------------------------- */ + +/* Draw indicators which show the value calculated from the driver, + * and how this is mapped to the value that comes out of it. This + * is handy for helping users better understand how to interpret + * the graphs, and also facilitates debugging. + */ +static void graph_draw_driver_debug(bAnimContext *ac, ID *id, FCurve *fcu) +{ + ChannelDriver *driver = fcu->driver; + View2D *v2d = &ac->ar->v2d; + float unitfac = ANIM_unit_mapping_get_factor(ac->scene, id, fcu, false); + + /* for now, only show when debugging driver... */ + //if ((driver->flag & DRIVER_FLAG_SHOWDEBUG) == 0) + // return; + + /* No curve to modify/visualise the result? + * => We still want to show the 1-1 default... + */ + if ((fcu->totvert == 0) && (fcu->modifiers.first == NULL)) { + float t; + + /* draw with thin dotted lines in style of what curve would have been */ + glColor3fv(fcu->color); + + setlinestyle(20); + glLineWidth(2.0f); + + /* draw 1-1 line, stretching just past the screen limits + * NOTE: we need to scale the y-values to be valid for the units + */ + glBegin(GL_LINES); + t = v2d->cur.xmin; + glVertex2f(t, t * unitfac); + + t = v2d->cur.xmax; + glVertex2f(t, t * unitfac); + glEnd(); + + /* cleanup line drawing */ + setlinestyle(0); + glLineWidth(1.0f); + } + + /* draw driver only if actually functional */ + if ((driver->flag & DRIVER_FLAG_INVALID) == 0) { + /* grab "coordinates" for driver outputs */ + float x = driver->curval; + float y = fcu->curval * unitfac; + + /* only draw indicators if the point is in range*/ + if (x >= v2d->cur.xmin) { + float co[2]; + + /* draw dotted lines leading towards this point from both axes ....... */ + glColor3f(0.9f, 0.9f, 0.9f); + setlinestyle(5); + + glBegin(GL_LINES); + /* x-axis lookup */ + co[0] = x; + + if (y >= v2d->cur.ymin) { + co[1] = v2d->cur.ymin - 1.0f; + glVertex2fv(co); + + co[1] = y; + glVertex2fv(co); + } + + /* y-axis lookup */ + co[1] = y; + + co[0] = v2d->cur.xmin - 1.0f; + glVertex2fv(co); + + co[0] = x; + glVertex2fv(co); + glEnd(); + + setlinestyle(0); + + /* x marks the spot .................................................... */ + /* -> outer frame */ + glColor3f(0.9f, 0.9f, 0.9f); + glPointSize(7.0); + + glBegin(GL_POINTS); + glVertex2f(x, y); + glEnd(); + + /* inner frame */ + glColor3f(0.9f, 0.0f, 0.0f); + glPointSize(3.0); + + glBegin(GL_POINTS); + glVertex2f(x, y); + glEnd(); + + glPointSize(1.0f); + } + } +} + /* Public Curve-Drawing API ---------------- */ /* Draw the 'ghost' F-Curves (i.e. snapshots of the curve) @@ -934,6 +1039,11 @@ void graph_draw_curves(bAnimContext *ac, SpaceIpo *sipo, ARegion *ar, View2DGrid } } + /* 3) draw driver debugging stuff */ + if ((ac->datatype == ANIMCONT_DRIVERS) && (fcu->flag & FCURVE_ACTIVE)) { + graph_draw_driver_debug(ac, ale->id, fcu); + } + /* undo mapping of keyframes for drawing if scaled F-Curve */ if (adt) ANIM_nla_mapping_apply_fcurve(adt, ale->key_data, 1, 0); |