Commit: 8c74ebb64f883701aecd291e5543b0f27ded8764
Author: Campbell Barton
Date: Mon Aug 1 09:01:43 2016 +1000
Branches: master
https://developer.blender.org/rB8c74ebb64f883701aecd291e5543b0f27ded8764
Support Auto-Clamped Handle for Curve-Mapping
This patch supports auto-clamped handles for curves,
useful since without this it can be difficult to have 'flat' sections of a
curve.
===================================================================
M source/blender/blenkernel/BKE_colortools.h
M source/blender/blenkernel/intern/colortools.c
M source/blender/editors/interface/interface_templates.c
M source/blender/makesdna/DNA_color_types.h
M source/blender/makesrna/intern/rna_color.c
===================================================================
diff --git a/source/blender/blenkernel/BKE_colortools.h
b/source/blender/blenkernel/BKE_colortools.h
index e5d3480..5b4f591 100644
--- a/source/blender/blenkernel/BKE_colortools.h
+++ b/source/blender/blenkernel/BKE_colortools.h
@@ -61,7 +61,7 @@ void curvemap_reset(struct CurveMap *cuma,
const struct rctf
void curvemap_remove(struct CurveMap *cuma, const short
flag);
bool curvemap_remove_point(struct CurveMap *cuma, struct
CurveMapPoint *cmp);
struct CurveMapPoint *curvemap_insert(struct CurveMap *cuma, float x, float
y);
-void curvemap_sethandle(struct CurveMap *cuma, int type);
+void curvemap_handle_set(struct CurveMap *cuma, int type);
void curvemapping_changed(struct CurveMapping *cumap, const
bool rem_doubles);
void curvemapping_changed_all(struct CurveMapping *cumap);
diff --git a/source/blender/blenkernel/intern/colortools.c
b/source/blender/blenkernel/intern/colortools.c
index 53a7402..4f3ffed 100644
--- a/source/blender/blenkernel/intern/colortools.c
+++ b/source/blender/blenkernel/intern/colortools.c
@@ -293,8 +293,8 @@ void curvemap_reset(CurveMap *cuma, const rctf *clipr, int
preset, int slope)
cuma->curve[1].x = clipr->xmax;
cuma->curve[1].y = clipr->ymin;
if (slope == CURVEMAP_SLOPE_POS_NEG) {
- cuma->curve[0].flag |= CUMA_VECTOR;
- cuma->curve[1].flag |= CUMA_VECTOR;
+ cuma->curve[0].flag |= CUMA_HANDLE_VECTOR;
+ cuma->curve[1].flag |= CUMA_HANDLE_VECTOR;
}
break;
case CURVE_PRESET_SHARP:
@@ -391,15 +391,25 @@ void curvemap_reset(CurveMap *cuma, const rctf *clipr,
int preset, int slope)
}
}
-/* if type==1: vector, else auto */
-void curvemap_sethandle(CurveMap *cuma, int type)
+/**
+ * \param type: eBezTriple_Handle
+ */
+void curvemap_handle_set(CurveMap *cuma, int type)
{
int a;
for (a = 0; a < cuma->totpoint; a++) {
if (cuma->curve[a].flag & CUMA_SELECT) {
- if (type) cuma->curve[a].flag |= CUMA_VECTOR;
- else cuma->curve[a].flag &= ~CUMA_VECTOR;
+ cuma->curve[a].flag &= ~(CUMA_HANDLE_VECTOR |
CUMA_HANDLE_AUTO_ANIM);
+ if (type == HD_VECT) {
+ cuma->curve[a].flag |= CUMA_HANDLE_VECTOR;
+ }
+ else if (type == HD_AUTO_ANIM) {
+ cuma->curve[a].flag |= CUMA_HANDLE_AUTO_ANIM;
+ }
+ else {
+ /* pass */
+ }
}
}
}
@@ -457,7 +467,7 @@ static void calchandle_curvemap(
if (len_a == 0.0f) len_a = 1.0f;
if (len_b == 0.0f) len_b = 1.0f;
- if (bezt->h1 == HD_AUTO || bezt->h2 == HD_AUTO) { /* auto */
+ if (ELEM(bezt->h1, HD_AUTO, HD_AUTO_ANIM) || ELEM(bezt->h2, HD_AUTO,
HD_AUTO_ANIM)) { /* auto */
float tvec[2];
tvec[0] = dvec_b[0] / len_b + dvec_a[0] / len_a;
tvec[1] = dvec_b[1] / len_b + dvec_a[1] / len_a;
@@ -465,13 +475,57 @@ static void calchandle_curvemap(
len = len_v2(tvec) * 2.5614f;
if (len != 0.0f) {
- if (bezt->h1 == HD_AUTO) {
+ if (ELEM(bezt->h1, HD_AUTO, HD_AUTO_ANIM)) {
len_a /= len;
madd_v2_v2v2fl(p2_h1, p2, tvec, -len_a);
+
+ if ((bezt->h1 == HD_AUTO_ANIM) && next && prev)
{ /* keep horizontal if extrema */
+ const float ydiff1 = prev->vec[1][1] -
bezt->vec[1][1];
+ const float ydiff2 = next->vec[1][1] -
bezt->vec[1][1];
+ if ((ydiff1 <= 0.0f && ydiff2 <= 0.0f)
||
+ (ydiff1 >= 0.0f && ydiff2 >= 0.0f))
+ {
+ bezt->vec[0][1] =
bezt->vec[1][1];
+ }
+ else { /* handles should not be beyond
y coord of two others */
+ if (ydiff1 <= 0.0f) {
+ if (prev->vec[1][1] >
bezt->vec[0][1]) {
+ bezt->vec[0][1]
= prev->vec[1][1];
+ }
+ }
+ else {
+ if (prev->vec[1][1] <
bezt->vec[0][1]) {
+ bezt->vec[0][1]
= prev->vec[1][1];
+ }
+ }
+ }
+ }
}
- if (bezt->h2 == HD_AUTO) {
+ if (ELEM(bezt->h2, HD_AUTO, HD_AUTO_ANIM)) {
len_b /= len;
madd_v2_v2v2fl(p2_h2, p2, tvec, len_b);
+
+ if ((bezt->h2 == HD_AUTO_ANIM) && next && prev)
{ /* keep horizontal if extrema */
+ const float ydiff1 = prev->vec[1][1] -
bezt->vec[1][1];
+ const float ydiff2 = next->vec[1][1] -
bezt->vec[1][1];
+ if ((ydiff1 <= 0.0f && ydiff2 <= 0.0f)||
+ (ydiff1 >= 0.0f && ydiff2 >= 0.0f))
+ {
+ bezt->vec[2][1] =
bezt->vec[1][1];
+ }
+ else { /* handles should not be beyond
y coord of two others */
+ if (ydiff1 <= 0.0f) {
+ if (next->vec[1][1] <
bezt->vec[2][1]) {
+ bezt->vec[2][1]
= next->vec[1][1];
+ }
+ }
+ else {
+ if (next->vec[1][1] >
bezt->vec[2][1]) {
+ bezt->vec[2][1]
= next->vec[1][1];
+ }
+ }
+ }
+ }
}
}
}
@@ -540,10 +594,15 @@ static void curvemap_make_table(CurveMap *cuma, const
rctf *clipr)
cuma->maxtable = max_ff(cuma->maxtable, cmp[a].x);
bezt[a].vec[1][0] = cmp[a].x;
bezt[a].vec[1][1] = cmp[a].y;
- if (cmp[a].flag & CUMA_VECTOR)
+ if (cmp[a].flag & CUMA_HANDLE_VECTOR) {
bezt[a].h1 = bezt[a].h2 = HD_VECT;
- else
+ }
+ else if (cmp[a].flag & CUMA_HANDLE_AUTO_ANIM) {
+ bezt[a].h1 = bezt[a].h2 = HD_AUTO_ANIM;
+ }
+ else {
bezt[a].h1 = bezt[a].h2 = HD_AUTO;
+ }
}
const BezTriple *bezt_prev = NULL;
@@ -773,12 +832,12 @@ void curvemapping_changed(CurveMapping *cumap, const bool
rem_doubles)
dy = cmp[a].y - cmp[a + 1].y;
if (sqrtf(dx * dx + dy * dy) < thresh) {
if (a == 0) {
- cmp[a + 1].flag |= CUMA_VECTOR;
+ cmp[a + 1].flag |= CUMA_HANDLE_VECTOR;
if (cmp[a + 1].flag & CUMA_SELECT)
cmp[a].flag |= CUMA_SELECT;
}
else {
- cmp[a].flag |= CUMA_VECTOR;
+ cmp[a].flag |= CUMA_HANDLE_VECTOR;
if (cmp[a].flag & CUMA_SELECT)
cmp[a + 1].flag |= CUMA_SELECT;
}
diff --git a/source/blender/editors/interface/interface_templates.c
b/source/blender/editors/interface/interface_templates.c
index aec4065..58cadf5 100644
--- a/source/blender/editors/interface/interface_templates.c
+++ b/source/blender/editors/interface/interface_templates.c
@@ -1940,6 +1940,7 @@ enum {
UICURVE_FUNC_RESET_VIEW,
UICURVE_FUNC_HANDLE_VECTOR,
UICURVE_FUNC_HANDLE_AUTO,
+ UICURVE_FUNC_HANDLE_AUTO_ANIM,
UICURVE_FUNC_EXTEND_HOZ,
UICURVE_FUNC_EXTEND_EXP,
};
@@ -1960,13 +1961,16 @@ static void curvemap_tools_dofunc(bContext *C, void
*cumap_v, int event)
cumap->curr = cumap->clipr;
break;
case UICURVE_FUNC_HANDLE_VECTOR: /* set vector */
- curvemap_sethandle(cuma, 1);
+ curvemap_handle_set(cuma, HD_VECT);
curvemapping_changed(cumap, false);
break;
case UICURVE_FUNC_HANDLE_AUTO: /* set auto */
- curvemap_sethandle(cuma, 0);
+ curvemap_handle_set(cuma, HD_AUTO);
curvemapping_changed(cumap, false);
break;
+ case UICURVE_FUNC_HANDLE_AUTO_ANIM: /* set auto-clamped */
+ curvemap_handle_set(cuma, HD_AUTO_ANIM);
+ curvemapping_changed(cumap, false);
case UICURVE_FUNC_EXTEND_HOZ: /* extend horiz */
cuma->flag &= ~CUMA_EXTEND_EXTRAPOLATE;
curvemapping_changed(cumap, false);
@@ -2000,6 +2004,9 @@ static uiBlock *curvemap_tools_func(
uiDefIconTextBut(
block, UI_BTYPE_BUT_MENU, 1, ICON_BLANK1, IFACE_("Auto
Handle"),
0, yco -= UI_UNIT_Y, menuwidth, UI_UNIT_Y, NULL, 0.0,
0.0, 0, UICURVE_FUNC_HANDLE_AUTO, "");
+ uiDefIconTextBut(
+ block, UI_BTYPE_BUT_MENU, 1, ICON_BLANK1, IFACE_("Auto
Clamped Handle"),
+ 0, yco -= UI_UNIT_Y, menuwidth, UI_UNIT_Y, NULL, 0.0,
0.0, 0, UICURVE_FUNC_HANDLE_AUTO_ANIM, "");
}
if (show_extend) {
diff --git a/source/blender/makesdna/DNA_color_types.h
b/source/blender/makesdna/DNA_color_types.h
index 1d88b01..f7ee1ff 100644
--- a/source/blender/makesdna/DNA_color_types.h
+++ b/source/blender/makesdna/DNA_color_types.h
@@ -49,7 +49,8 @@ typedef struct CurveMapPoint {
/* curvepoint->flag */
enum {
CUMA_SELECT = 1,
- CUMA_VECTOR = 2
+ CUMA_HANDLE_VECTOR = 2,
+ CUMA_HANDLE_AUTO_ANIM = 4,
};
typedef struct CurveMap {
diff --git a/source/blender/makesrna/intern/rna_color.c
b/source/blender/makesrna/intern/rna_color.c
index 78e3bbe..24f2d81 100644
--- a/source/blender/makesrna/intern/rna_color.c
+++ b/source/blender/makesrna/intern/rna_color.c
@@ -690,7 +690,8 @@ static void rna_def_curvemappoint(BlenderRNA *brna)
PropertyRNA *prop;
static EnumPropertyItem prop_handle_type_items[] = {
{0, "AUTO", 0, "Auto Handle", ""},
- {CUMA_VECTOR, "VECTOR", 0, "Vector Handle", ""},
+ {CUMA_HANDLE_AUTO_ANIM, "AUTO_CLAMPED", 0, "Auto Clamped
Handle", ""},
+ {CUMA_HANDLE_VECTOR, "VECTOR", 0, "Vector Handle", ""},
{0, NULL, 0, NULL, NULL}
};
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