void ui_draw_but_CURVE(ARegion *ar, uiBut *but, uiWidgetColors *wcol, rcti *rect)
{
CurveMapping *cumap;
CurveMap *cuma;
CurveMapPoint *cmp;
float fx, fy, fac[2], zoomx, zoomy, offsx, offsy;
GLint scissor[4];
rcti scissor_new;
int a;
if (but->editcumap) {
cumap = but->editcumap;
}
else {
cumap = (CurveMapping *)but->poin;
}
cuma = &cumap->cm[cumap->cur];
/* need scissor test, curve can draw outside of boundary */
glGetIntegerv(GL_VIEWPORT, scissor);
scissor_new.xmin = ar->winrct.xmin + rect->xmin;
scissor_new.ymin = ar->winrct.ymin + rect->ymin;
scissor_new.xmax = ar->winrct.xmin + rect->xmax;
scissor_new.ymax = ar->winrct.ymin + rect->ymax;
BLI_rcti_isect(&scissor_new, &ar->winrct, &scissor_new);
glScissor(scissor_new.xmin,
scissor_new.ymin,
BLI_rcti_size_x(&scissor_new),
BLI_rcti_size_y(&scissor_new));
/* calculate offset and zoom */
zoomx = (BLI_rcti_size_x(rect) - 2.0f * but->aspect) / BLI_rctf_size_x(&cumap->curr);
zoomy = (BLI_rcti_size_y(rect) - 2.0f * but->aspect) / BLI_rctf_size_y(&cumap->curr);
offsx = cumap->curr.xmin - but->aspect / zoomx;
offsy = cumap->curr.ymin - but->aspect / zoomy;
/* backdrop */
if (but->a1 == UI_GRAD_H) {
/* magic trigger for curve backgrounds */
rcti grid;
float col[3] = {0.0f, 0.0f, 0.0f}; /* dummy arg */
grid.xmin = rect->xmin + zoomx * (-offsx);
grid.xmax = rect->xmax + zoomx * (-offsx);
grid.ymin = rect->ymin + zoomy * (-offsy);
grid.ymax = rect->ymax + zoomy * (-offsy);
ui_draw_gradient(&grid, col, UI_GRAD_H, 1.0f);
/* grid, hsv uses different grid */
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4ub(0, 0, 0, 48);
ui_draw_but_curve_grid(rect, zoomx, zoomy, offsx, offsy, 0.1666666f);
glDisable(GL_BLEND);
}
else {
if (cumap->flag & CUMA_DO_CLIP) {
gl_shaded_color((unsigned char *)wcol->inner, -20);
glRectf(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
glColor3ubv((unsigned char *)wcol->inner);
glRectf(rect->xmin + zoomx * (cumap->clipr.xmin - offsx),
rect->ymin + zoomy * (cumap->clipr.ymin - offsy),
rect->xmin + zoomx * (cumap->clipr.xmax - offsx),
rect->ymin + zoomy * (cumap->clipr.ymax - offsy));
}
else {
glColor3ubv((unsigned char *)wcol->inner);
glRectf(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
}
/* grid, every 0.25 step */
gl_shaded_color((unsigned char *)wcol->inner, -16);
ui_draw_but_curve_grid(rect, zoomx, zoomy, offsx, offsy, 0.25f);
/* grid, every 1.0 step */
gl_shaded_color((unsigned char *)wcol->inner, -24);
ui_draw_but_curve_grid(rect, zoomx, zoomy, offsx, offsy, 1.0f);
/* axes */
gl_shaded_color((unsigned char *)wcol->inner, -50);
glBegin(GL_LINES);
glVertex2f(rect->xmin, rect->ymin + zoomy * (-offsy));
glVertex2f(rect->xmax, rect->ymin + zoomy * (-offsy));
glVertex2f(rect->xmin + zoomx * (-offsx), rect->ymin);
glVertex2f(rect->xmin + zoomx * (-offsx), rect->ymax);
glEnd();
}
/* cfra option */
/* XXX 2.48 */
#if 0
if (cumap->flag & CUMA_DRAW_CFRA) {
glColor3ub(0x60, 0xc0, 0x40);
glBegin(GL_LINES);
glVertex2f(rect->xmin + zoomx * (cumap->sample[0] - offsx), rect->ymin);
glVertex2f(rect->xmin + zoomx * (cumap->sample[0] - offsx), rect->ymax);
glEnd();
}
#endif
/* sample option */
if (cumap->flag & CUMA_DRAW_SAMPLE) {
if (but->a1 == UI_GRAD_H) {
float tsample[3];
float hsv[3];
linearrgb_to_srgb_v3_v3(tsample, cumap->sample);
rgb_to_hsv_v(tsample, hsv);
glColor3ub(240, 240, 240);
glBegin(GL_LINES);
glVertex2f(rect->xmin + zoomx * (hsv[0] - offsx), rect->ymin);
glVertex2f(rect->xmin + zoomx * (hsv[0] - offsx), rect->ymax);
glEnd();
}
else if (cumap->cur == 3) {
float lum = rgb_to_bw(cumap->sample);
glColor3ub(240, 240, 240);
glBegin(GL_LINES);
glVertex2f(rect->xmin + zoomx * (lum - offsx), rect->ymin);
glVertex2f(rect->xmin + zoomx * (lum - offsx), rect->ymax);
glEnd();
}
else {
if (cumap->cur == 0)
glColor3ub(240, 100, 100);
else if (cumap->cur == 1)
glColor3ub(100, 240, 100);
else
glColor3ub(100, 100, 240);
glBegin(GL_LINES);
glVertex2f(rect->xmin + zoomx * (cumap->sample[cumap->cur] - offsx), rect->ymin);
glVertex2f(rect->xmin + zoomx * (cumap->sample[cumap->cur] - offsx), rect->ymax);
glEnd();
}
}
/* the curve */
glColor3ubv((unsigned char *)wcol->item);
glEnable(GL_LINE_SMOOTH);
glEnable(GL_BLEND);
glBegin(GL_LINE_STRIP);
if (cuma->table == NULL)
curvemapping_changed(cumap, FALSE);
cmp = cuma->table;
/* first point */
if ((cuma->flag & CUMA_EXTEND_EXTRAPOLATE) == 0) {
glVertex2f(rect->xmin, rect->ymin + zoomy * (cmp[0].y - offsy));
}
else {
fx = rect->xmin + zoomx * (cmp[0].x - offsx + cuma->ext_in[0]);
fy = rect->ymin + zoomy * (cmp[0].y - offsy + cuma->ext_in[1]);
glVertex2f(fx, fy);
}
for (a = 0; a <= CM_TABLE; a++) {
fx = rect->xmin + zoomx * (cmp[a].x - offsx);
fy = rect->ymin + zoomy * (cmp[a].y - offsy);
glVertex2f(fx, fy);
}
/* last point */
if ((cuma->flag & CUMA_EXTEND_EXTRAPOLATE) == 0) {
glVertex2f(rect->xmax, rect->ymin + zoomy * (cmp[CM_TABLE].y - offsy));
}
else {
fx = rect->xmin + zoomx * (cmp[CM_TABLE].x - offsx - cuma->ext_out[0]);
fy = rect->ymin + zoomy * (cmp[CM_TABLE].y - offsy - cuma->ext_out[1]);
glVertex2f(fx, fy);
}
glEnd();
glDisable(GL_LINE_SMOOTH);
glDisable(GL_BLEND);
/* the points, use aspect to make them visible on edges */
cmp = cuma->curve;
glPointSize(3.0f);
bglBegin(GL_POINTS);
for (a = 0; a < cuma->totpoint; a++) {
if (cmp[a].flag & CUMA_SELECT)
UI_ThemeColor(TH_TEXT_HI);
else
UI_ThemeColor(TH_TEXT);
fac[0] = rect->xmin + zoomx * (cmp[a].x - offsx);
fac[1] = rect->ymin + zoomy * (cmp[a].y - offsy);
bglVertex2fv(fac);
}
bglEnd();
glPointSize(1.0f);
/* restore scissortest */
glScissor(scissor[0], scissor[1], scissor[2], scissor[3]);
/* outline */
glColor3ubv((unsigned char *)wcol->outline);
fdrawbox(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
}
void ui_draw_but_CURVE(ARegion *ar, uiBut *but, uiWidgetColors *wcol, rcti *rect)
{
CurveMapping *cumap;
CurveMap *cuma;
CurveMapPoint *cmp;
float fx, fy, fac[2], zoomx, zoomy, offsx, offsy;
GLint scissor[4];
rcti scissor_new;
int a;
cumap= (CurveMapping *)(but->editcumap? but->editcumap: but->poin);
cuma= cumap->cm+cumap->cur;
/* need scissor test, curve can draw outside of boundary */
glGetIntegerv(GL_VIEWPORT, scissor);
scissor_new.xmin= ar->winrct.xmin + rect->xmin;
scissor_new.ymin= ar->winrct.ymin + rect->ymin;
scissor_new.xmax= ar->winrct.xmin + rect->xmax;
scissor_new.ymax= ar->winrct.ymin + rect->ymax;
BLI_isect_rcti(&scissor_new, &ar->winrct, &scissor_new);
glScissor(scissor_new.xmin, scissor_new.ymin, scissor_new.xmax-scissor_new.xmin, scissor_new.ymax-scissor_new.ymin);
/* calculate offset and zoom */
zoomx= (rect->xmax-rect->xmin-2.0f*but->aspect)/(cumap->curr.xmax - cumap->curr.xmin);
zoomy= (rect->ymax-rect->ymin-2.0f*but->aspect)/(cumap->curr.ymax - cumap->curr.ymin);
offsx= cumap->curr.xmin-but->aspect/zoomx;
offsy= cumap->curr.ymin-but->aspect/zoomy;
/* backdrop */
if(cumap->flag & CUMA_DO_CLIP) {
glColor3ubvShade((unsigned char *)wcol->inner, -20);
glRectf(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
glColor3ubv((unsigned char*)wcol->inner);
glRectf(rect->xmin + zoomx*(cumap->clipr.xmin-offsx),
rect->ymin + zoomy*(cumap->clipr.ymin-offsy),
rect->xmin + zoomx*(cumap->clipr.xmax-offsx),
rect->ymin + zoomy*(cumap->clipr.ymax-offsy));
}
else {
glColor3ubv((unsigned char*)wcol->inner);
glRectf(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
}
/* grid, every .25 step */
glColor3ubvShade((unsigned char *)wcol->inner, -16);
ui_draw_but_curve_grid(rect, zoomx, zoomy, offsx, offsy, 0.25f);
/* grid, every 1.0 step */
glColor3ubvShade((unsigned char *)wcol->inner, -24);
ui_draw_but_curve_grid(rect, zoomx, zoomy, offsx, offsy, 1.0f);
/* axes */
glColor3ubvShade((unsigned char *)wcol->inner, -50);
glBegin(GL_LINES);
glVertex2f(rect->xmin, rect->ymin + zoomy*(-offsy));
glVertex2f(rect->xmax, rect->ymin + zoomy*(-offsy));
glVertex2f(rect->xmin + zoomx*(-offsx), rect->ymin);
glVertex2f(rect->xmin + zoomx*(-offsx), rect->ymax);
glEnd();
/* magic trigger for curve backgrounds */
if (but->a1 != -1) {
if (but->a1 == UI_GRAD_H) {
rcti grid;
float col[3]= {0.0f, 0.0f, 0.0f}; /* dummy arg */
grid.xmin = rect->xmin + zoomx*(-offsx);
grid.xmax = rect->xmax + zoomx*(-offsx);
grid.ymin = rect->ymin + zoomy*(-offsy);
grid.ymax = rect->ymax + zoomy*(-offsy);
glEnable(GL_BLEND);
ui_draw_gradient(&grid, col, UI_GRAD_H, 0.5f);
glDisable(GL_BLEND);
}
}
/* cfra option */
/* XXX 2.48
if(cumap->flag & CUMA_DRAW_CFRA) {
glColor3ub(0x60, 0xc0, 0x40);
glBegin(GL_LINES);
glVertex2f(rect->xmin + zoomx*(cumap->sample[0]-offsx), rect->ymin);
glVertex2f(rect->xmin + zoomx*(cumap->sample[0]-offsx), rect->ymax);
glEnd();
}*/
/* sample option */
/* XXX 2.48
* if(cumap->flag & CUMA_DRAW_SAMPLE) {
if(cumap->cur==3) {
float lum= cumap->sample[0]*0.35f + cumap->sample[1]*0.45f + cumap->sample[2]*0.2f;
glColor3ub(240, 240, 240);
glBegin(GL_LINES);
glVertex2f(rect->xmin + zoomx*(lum-offsx), rect->ymin);
glVertex2f(rect->xmin + zoomx*(lum-offsx), rect->ymax);
glEnd();
}
else {
if(cumap->cur==0)
glColor3ub(240, 100, 100);
else if(cumap->cur==1)
glColor3ub(100, 240, 100);
else
glColor3ub(100, 100, 240);
glBegin(GL_LINES);
glVertex2f(rect->xmin + zoomx*(cumap->sample[cumap->cur]-offsx), rect->ymin);
glVertex2f(rect->xmin + zoomx*(cumap->sample[cumap->cur]-offsx), rect->ymax);
glEnd();
}
}*/
/* the curve */
glColor3ubv((unsigned char*)wcol->item);
glEnable(GL_LINE_SMOOTH);
glEnable(GL_BLEND);
glBegin(GL_LINE_STRIP);
if(cuma->table==NULL)
curvemapping_changed(cumap, 0); /* 0 = no remove doubles */
cmp= cuma->table;
/* first point */
if((cuma->flag & CUMA_EXTEND_EXTRAPOLATE)==0)
glVertex2f(rect->xmin, rect->ymin + zoomy*(cmp[0].y-offsy));
else {
fx= rect->xmin + zoomx*(cmp[0].x-offsx + cuma->ext_in[0]);
fy= rect->ymin + zoomy*(cmp[0].y-offsy + cuma->ext_in[1]);
glVertex2f(fx, fy);
}
for(a=0; a<=CM_TABLE; a++) {
fx= rect->xmin + zoomx*(cmp[a].x-offsx);
fy= rect->ymin + zoomy*(cmp[a].y-offsy);
glVertex2f(fx, fy);
}
/* last point */
if((cuma->flag & CUMA_EXTEND_EXTRAPOLATE)==0)
glVertex2f(rect->xmax, rect->ymin + zoomy*(cmp[CM_TABLE].y-offsy));
else {
fx= rect->xmin + zoomx*(cmp[CM_TABLE].x-offsx - cuma->ext_out[0]);
fy= rect->ymin + zoomy*(cmp[CM_TABLE].y-offsy - cuma->ext_out[1]);
glVertex2f(fx, fy);
}
glEnd();
glDisable(GL_LINE_SMOOTH);
glDisable(GL_BLEND);
/* the points, use aspect to make them visible on edges */
cmp= cuma->curve;
glPointSize(3.0f);
bglBegin(GL_POINTS);
for(a=0; a<cuma->totpoint; a++) {
if(cmp[a].flag & SELECT)
UI_ThemeColor(TH_TEXT_HI);
else
UI_ThemeColor(TH_TEXT);
fac[0]= rect->xmin + zoomx*(cmp[a].x-offsx);
fac[1]= rect->ymin + zoomy*(cmp[a].y-offsy);
bglVertex2fv(fac);
}
bglEnd();
glPointSize(1.0f);
/* restore scissortest */
glScissor(scissor[0], scissor[1], scissor[2], scissor[3]);
/* outline */
glColor3ubv((unsigned char*)wcol->outline);
fdrawbox(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
}