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Change the looks of the histogram (inspired by darktable) with overlapping shades

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This commit is contained in:
Thanatomanic
2018-06-15 20:11:30 +02:00
parent 0d3e7f02ad
commit bd831d1043
1 changed files with 43 additions and 23 deletions
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66
rtgui/histogrampanel.cc
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@@ -702,6 +702,10 @@ HistogramArea::~HistogramArea ()
}
}
/* Note: best case scenario would be to have the histogram size really flexible
by being able to resize the panel vertically, and the side-bar horizontally.
We would only need to enforce some lower limits then. */
Gtk::SizeRequestMode HistogramArea::get_request_mode_vfunc () const
{
return Gtk::SIZE_REQUEST_HEIGHT_FOR_WIDTH;
@@ -943,48 +947,64 @@ void HistogramArea::updateBackBuffer ()
cr->set_antialias (Cairo::ANTIALIAS_SUBPIXEL);
cr->set_line_width (1.0);
cr->set_operator(Cairo::OPERATOR_ADD);
int ui = 0, oi = 0;
if (needLuma && !rawMode) {
drawCurve(cr, lhist, realhistheight, w, h);
cr->set_source_rgb (0.65, 0.65, 0.65);
if (needBlue) {
drawCurve(cr, bhchanged, realhistheight, w, h);
cr->set_source_rgba (0.0, 0.0, 1.0, 0.4);
cr->fill ();
drawMarks(cr, lhist, realhistheight, w, ui, oi);
}
if (needChroma && !rawMode) {
drawCurve(cr, chist, realhistheight, w, h);
cr->set_source_rgb (0., 0., 0.);
drawCurve(cr, bhchanged, realhistheight, w, h);
cr->set_source_rgba (0.0, 0.0, 1.0, 0.9);
cr->stroke ();
drawMarks(cr, chist, realhistheight, w, ui, oi);
drawMarks(cr, bhchanged, realhistheight, w, ui, oi);
}
if (needGreen) {
drawCurve(cr, ghchanged, realhistheight, w, h);
cr->set_source_rgba (0.0, 1.0, 0.0, 0.4);
cr->fill ();
drawCurve(cr, ghchanged, realhistheight, w, h);
cr->set_source_rgba (0.0, 1.0, 0.0, 0.9);
cr->stroke ();
drawMarks(cr, ghchanged, realhistheight, w, ui, oi);
}
if (needRed) {
drawCurve(cr, rhchanged, realhistheight, w, h);
cr->set_source_rgb (1.0, 0.0, 0.0);
drawCurve(cr, rhchanged, realhistheight, w, h);
cr->set_source_rgba (1.0, 0.0, 0.0, 0.4);
cr->fill ();
drawCurve(cr, rhchanged, realhistheight, w, h);
cr->set_source_rgba (1.0, 0.0, 0.0, 0.9);
cr->stroke ();
drawMarks(cr, rhchanged, realhistheight, w, ui, oi);
}
if (needGreen) {
drawCurve(cr, ghchanged, realhistheight, w, h);
cr->set_source_rgb (0.0, 1.0, 0.0);
cr->set_operator(Cairo::OPERATOR_SOURCE);
if (needLuma && !rawMode) {
drawCurve(cr, lhist, realhistheight, w, h);
cr->set_source_rgb (0.9, 0.9, 0.9);
cr->stroke ();
drawMarks(cr, ghchanged, realhistheight, w, ui, oi);
drawMarks(cr, lhist, realhistheight, w, ui, oi);
}
if (needBlue) {
drawCurve(cr, bhchanged, realhistheight, w, h);
cr->set_source_rgb (0.0, 0.0, 1.0);
if (needChroma && !rawMode) {
drawCurve(cr, chist, realhistheight, w, h);
cr->set_source_rgb (0.15, 0.15, 0.15);
cr->stroke ();
drawMarks(cr, bhchanged, realhistheight, w, ui, oi);
drawMarks(cr, chist, realhistheight, w, ui, oi);
}
}
cr->set_source_rgba (1., 1., 1., 0.35);