1a3fd9f157
Allows to specify various "regions" of the image with masks, and to correct for hue, saturation and lightness. Inspired by the existing L*a*b* grid (in turn taken from darktable)
350 lines
10 KiB
C++
350 lines
10 KiB
C++
/** -*- C++ -*-
|
|
*
|
|
* This file is part of RawTherapee.
|
|
*
|
|
* Copyright (c) 2017 Alberto Griggio <alberto.griggio@gmail.com>
|
|
*
|
|
* RawTherapee is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* RawTherapee is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with RawTherapee. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
// adapted from the "color correction" module of Darktable. Original copyright follows
|
|
/*
|
|
copyright (c) 2009--2010 johannes hanika.
|
|
|
|
darktable is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
darktable is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with darktable. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "labgrid.h"
|
|
|
|
using rtengine::Color;
|
|
|
|
|
|
bool LabGrid::notifyListener()
|
|
{
|
|
if (listener) {
|
|
listener->panelChanged(evt, Glib::ustring::compose(evtMsg, int(high_a), int(high_b), int(low_a), int(low_b)));
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
LabGrid::LabGrid(rtengine::ProcEvent evt, const Glib::ustring &msg, bool enable_low):
|
|
Gtk::DrawingArea(),
|
|
evt(evt), evtMsg(msg),
|
|
litPoint(NONE),
|
|
low_a(0.f), high_a(0.f), low_b(0.f), high_b(0.f),
|
|
defaultLow_a(0.f), defaultHigh_a(0.f), defaultLow_b(0.f), defaultHigh_b(0.f),
|
|
listener(nullptr),
|
|
edited(false),
|
|
isDragged(false),
|
|
low_enabled(enable_low)
|
|
{
|
|
set_can_focus(true);
|
|
add_events(Gdk::EXPOSURE_MASK | Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK | Gdk::POINTER_MOTION_MASK);
|
|
}
|
|
|
|
void LabGrid::getParams(double &la, double &lb, double &ha, double &hb) const
|
|
{
|
|
la = low_a;
|
|
ha = high_a;
|
|
lb = low_b;
|
|
hb = high_b;
|
|
}
|
|
|
|
|
|
void LabGrid::setParams(double la, double lb, double ha, double hb, bool notify)
|
|
{
|
|
const double lo = -rtengine::ColorToningParams::LABGRID_CORR_MAX;
|
|
const double hi = rtengine::ColorToningParams::LABGRID_CORR_MAX;
|
|
low_a = rtengine::LIM(la, lo, hi);
|
|
low_b = rtengine::LIM(lb, lo, hi);
|
|
high_a = rtengine::LIM(ha, lo, hi);
|
|
high_b = rtengine::LIM(hb, lo, hi);
|
|
queue_draw();
|
|
if (notify) {
|
|
notifyListener();
|
|
}
|
|
}
|
|
|
|
void LabGrid::setDefault (double la, double lb, double ha, double hb)
|
|
{
|
|
defaultLow_a = la;
|
|
defaultLow_b = lb;
|
|
defaultHigh_a = ha;
|
|
defaultHigh_b = hb;
|
|
}
|
|
|
|
|
|
void LabGrid::reset(bool toInitial)
|
|
{
|
|
if (toInitial) {
|
|
setParams(defaultLow_a, defaultLow_b, defaultHigh_a, defaultHigh_b, true);
|
|
} else {
|
|
setParams(0., 0., 0., 0., true);
|
|
}
|
|
}
|
|
|
|
|
|
void LabGrid::setEdited(bool yes)
|
|
{
|
|
edited = yes;
|
|
}
|
|
|
|
|
|
bool LabGrid::getEdited() const
|
|
{
|
|
return edited;
|
|
}
|
|
|
|
|
|
void LabGrid::setListener(ToolPanelListener *l)
|
|
{
|
|
listener = l;
|
|
}
|
|
|
|
|
|
void LabGrid::on_style_updated ()
|
|
{
|
|
setDirty(true);
|
|
queue_draw ();
|
|
}
|
|
|
|
|
|
bool LabGrid::on_draw(const ::Cairo::RefPtr<Cairo::Context> &crf)
|
|
{
|
|
Gtk::Allocation allocation = get_allocation();
|
|
allocation.set_x(0);
|
|
allocation.set_y(0);
|
|
|
|
// setDrawRectangle will allocate the backbuffer Surface
|
|
if (setDrawRectangle(Cairo::FORMAT_ARGB32, allocation)) {
|
|
setDirty(true);
|
|
}
|
|
|
|
if (!isDirty() || !surfaceCreated()) {
|
|
return true;
|
|
}
|
|
|
|
Glib::RefPtr<Gtk::StyleContext> style = get_style_context();
|
|
Cairo::RefPtr<Cairo::Context> cr = getContext();
|
|
|
|
if (isDirty()) {
|
|
int width = allocation.get_width();
|
|
int height = allocation.get_height();
|
|
|
|
cr->set_line_cap(Cairo::LINE_CAP_SQUARE);
|
|
|
|
// clear background
|
|
cr->set_source_rgba (0., 0., 0., 0.);
|
|
cr->set_operator (Cairo::OPERATOR_CLEAR);
|
|
cr->paint ();
|
|
cr->set_operator (Cairo::OPERATOR_OVER);
|
|
style->render_background(cr, 0, 0, width, height);
|
|
|
|
// drawing the cells
|
|
cr->translate(inset, inset);
|
|
cr->set_antialias(Cairo::ANTIALIAS_NONE);
|
|
width -= 2 * inset;
|
|
height -= 2 * inset;
|
|
// flip y:
|
|
cr->translate(0, height);
|
|
cr->scale(1., -1.);
|
|
const int cells = 8;
|
|
float step = rtengine::ColorToningParams::LABGRID_CORR_MAX / float(cells/2);
|
|
for (int j = 0; j < cells; j++) {
|
|
for (int i = 0; i < cells; i++) {
|
|
float R, G, B;
|
|
float x, y, z;
|
|
int ii = i - cells/2;
|
|
int jj = j - cells/2;
|
|
float a = step * (ii + 0.5);
|
|
float b = step * (jj + 0.5);
|
|
Color::Lab2XYZ(25000.f, a, b, x, y, z);
|
|
Color::xyz2srgb(x, y, z, R, G, B);
|
|
cr->set_source_rgb(R / 65535.f, G / 65535.f, B / 65535.f);
|
|
cr->rectangle(width * i / float(cells), height * j / float(cells), width / float(cells) - 1, height / float(cells) - 1);
|
|
cr->fill();
|
|
}
|
|
}
|
|
|
|
// drawing the connection line
|
|
cr->set_antialias(Cairo::ANTIALIAS_DEFAULT);
|
|
float loa, hia, lob, hib;
|
|
loa = .5f * (width + width * low_a / rtengine::ColorToningParams::LABGRID_CORR_MAX);
|
|
hia = .5f * (width + width * high_a / rtengine::ColorToningParams::LABGRID_CORR_MAX);
|
|
lob = .5f * (height + height * low_b / rtengine::ColorToningParams::LABGRID_CORR_MAX);
|
|
hib = .5f * (height + height * high_b / rtengine::ColorToningParams::LABGRID_CORR_MAX);
|
|
cr->set_line_width(2.);
|
|
cr->set_source_rgb(0.6, 0.6, 0.6);
|
|
cr->move_to(loa, lob);
|
|
cr->line_to(hia, hib);
|
|
cr->stroke();
|
|
|
|
// drawing points
|
|
if (low_enabled) {
|
|
cr->set_source_rgb(0.1, 0.1, 0.1);
|
|
if (litPoint == LOW) {
|
|
cr->arc(loa, lob, 5, 0, 2. * rtengine::RT_PI);
|
|
} else {
|
|
cr->arc(loa, lob, 3, 0, 2. * rtengine::RT_PI);
|
|
}
|
|
cr->fill();
|
|
}
|
|
|
|
cr->set_source_rgb(0.9, 0.9, 0.9);
|
|
if (litPoint == HIGH) {
|
|
cr->arc(hia, hib, 5, 0, 2. * rtengine::RT_PI);
|
|
} else {
|
|
cr->arc(hia, hib, 3, 0, 2. * rtengine::RT_PI);
|
|
}
|
|
cr->fill();
|
|
}
|
|
|
|
copySurface(crf);
|
|
return false;
|
|
}
|
|
|
|
|
|
bool LabGrid::on_button_press_event(GdkEventButton *event)
|
|
{
|
|
if (event->button == 1) {
|
|
if (event->type == GDK_2BUTTON_PRESS) {
|
|
switch (litPoint) {
|
|
case NONE:
|
|
low_a = low_b = high_a = high_b = 0.f;
|
|
break;
|
|
case LOW:
|
|
low_a = low_b = 0.f;
|
|
break;
|
|
case HIGH:
|
|
high_a = high_b = 0.f;
|
|
break;
|
|
}
|
|
edited = true;
|
|
notifyListener();
|
|
queue_draw();
|
|
} else if (event->type == GDK_BUTTON_PRESS && litPoint != NONE) {
|
|
isDragged = true;
|
|
}
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
bool LabGrid::on_button_release_event(GdkEventButton *event)
|
|
{
|
|
if (event->button == 1) {
|
|
isDragged = false;
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
bool LabGrid::on_motion_notify_event(GdkEventMotion *event)
|
|
{
|
|
if (isDragged && delayconn.connected()) {
|
|
delayconn.disconnect();
|
|
}
|
|
|
|
State oldLitPoint = litPoint;
|
|
|
|
int width = get_allocated_width() - 2 * inset, height = get_allocated_height() - 2 * inset;
|
|
const float mouse_x = std::min(std::max(event->x - inset, 0.), double(width));
|
|
const float mouse_y = std::min(std::max(height - 1 - event->y + inset, 0.), double(height));
|
|
const float ma = (2.0 * mouse_x - width) / (float)width;
|
|
const float mb = (2.0 * mouse_y - height) / (float)height;
|
|
if (isDragged) {
|
|
if (litPoint == LOW) {
|
|
low_a = ma * rtengine::ColorToningParams::LABGRID_CORR_MAX;
|
|
low_b = mb * rtengine::ColorToningParams::LABGRID_CORR_MAX;
|
|
} else if (litPoint == HIGH) {
|
|
high_a = ma * rtengine::ColorToningParams::LABGRID_CORR_MAX;
|
|
high_b = mb * rtengine::ColorToningParams::LABGRID_CORR_MAX;
|
|
}
|
|
edited = true;
|
|
grab_focus();
|
|
if (options.adjusterMinDelay == 0) {
|
|
notifyListener();
|
|
} else {
|
|
delayconn = Glib::signal_timeout().connect(sigc::mem_fun(*this, &LabGrid::notifyListener), options.adjusterMinDelay);
|
|
}
|
|
queue_draw();
|
|
} else {
|
|
litPoint = NONE;
|
|
float la = low_a / rtengine::ColorToningParams::LABGRID_CORR_MAX;
|
|
float lb = low_b / rtengine::ColorToningParams::LABGRID_CORR_MAX;
|
|
float ha = high_a / rtengine::ColorToningParams::LABGRID_CORR_MAX;
|
|
float hb = high_b / rtengine::ColorToningParams::LABGRID_CORR_MAX;
|
|
const float thrs = 0.05f;
|
|
const float distlo = (la - ma) * (la - ma) + (lb - mb) * (lb - mb);
|
|
const float disthi = (ha - ma) * (ha - ma) + (hb - mb) * (hb - mb);
|
|
if (low_enabled && distlo < thrs * thrs && distlo < disthi) {
|
|
litPoint = LOW;
|
|
} else if (disthi < thrs * thrs && disthi <= distlo) {
|
|
litPoint = HIGH;
|
|
}
|
|
if ((oldLitPoint == NONE && litPoint != NONE) || (oldLitPoint != NONE && litPoint == NONE)) {
|
|
queue_draw();
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
Gtk::SizeRequestMode LabGrid::get_request_mode_vfunc() const
|
|
{
|
|
return Gtk::SIZE_REQUEST_HEIGHT_FOR_WIDTH;
|
|
}
|
|
|
|
|
|
void LabGrid::get_preferred_width_vfunc(int &minimum_width, int &natural_width) const
|
|
{
|
|
minimum_width = 50;
|
|
natural_width = 150; // same as GRAPH_SIZE from mycurve.h
|
|
}
|
|
|
|
|
|
void LabGrid::get_preferred_height_for_width_vfunc(int width, int &minimum_height, int &natural_height) const
|
|
{
|
|
minimum_height = natural_height = width;
|
|
}
|
|
|
|
|
|
bool LabGrid::lowEnabled() const
|
|
{
|
|
return low_enabled;
|
|
}
|
|
|
|
|
|
void LabGrid::setLowEnabled(bool yes)
|
|
{
|
|
if (low_enabled != yes) {
|
|
low_enabled = yes;
|
|
queue_draw();
|
|
}
|
|
}
|