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rawTherapee/rtgui/myflatcurve.cc
Pandagrapher 89d2bdce5b Initial commit for real hidpi support 
Note: This commit has only been tested on MacOS

Changes:
- Icons now use the native hidpi support from Gtk (through Icon Theme)
- Icons are now directly generated from scalable file (i.e. SVG file)
- Widget sizes are scaled based on DPI and scale factor
- Font size is scaled based on DPI and scale factor
2022-08-19 16:47:28 +02:00

1969 lines
65 KiB
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/*
* This file is part of RawTherapee.
*
* Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.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 <https://www.gnu.org/licenses/>.
*/
#include <cstring>
#include <gdkmm/types.h>
#include "myflatcurve.h"
#include "editcallbacks.h"
#include "rtscalable.h"
#include "../rtengine/curves.h"
MyFlatCurve::MyFlatCurve () :
MyCurve(),
clampedX(0.0),
clampedY(0.0),
deltaX(0.0),
deltaY(0.0),
distanceX(0.0),
distanceY(0.0),
ugpX(0.0),
ugpY(0.0),
leftTanX(0.0),
rightTanX(0.0),
preciseCursorX(0.0),
preciseCursorY(0.0),
minDistanceX(0.0),
minDistanceY(0.0),
deletedPointX(0.0),
leftTanHandle({0.0, 0.0}),
rightTanHandle({0.0, 0.0}),
draggingElement(false),
locallabRef(0.0)
{
lit_point = -1;
closest_point = 0;
editedHandle = FCT_EditedHandle_None;
area = FCT_Area_None;
tanHandlesDisplayed = false;
periodic = true;
//bghist = new unsigned int[256];
editedPos.resize(4);
editedPos.at(0) = editedPos.at(1) = editedPos.at(2) = editedPos.at(3) = 0.0;
signal_event().connect( sigc::mem_fun(*this, &MyFlatCurve::handleEvents) );
// By default, we create a curve with 6 control points
curve.type = FCT_MinMaxCPoints;
defaultCurve();
}
/*MyFlatCurve::~MyFlatCurve () {
}*/
std::vector<double> MyFlatCurve::get_vector (int veclen)
{
// Create the output variable
std::vector<double> convertedValues;
// Get the curve control points
std::vector<double> curveDescr = getPoints ();
rtengine::FlatCurve rtcurve(curveDescr, periodic, veclen * 1.2 > 5000 ? 5000 : veclen * 1.2);
// Create the sample values that will be converted
std::vector<double> samples;
samples.resize (veclen);
for (int i = 0; i < veclen; i++) {
samples.at(i) = (double) i / (veclen - 1.0);
}
// Converting the values
rtcurve.getVal (samples, convertedValues);
// Cleanup and return
return convertedValues;
}
void MyFlatCurve::get_LUT (LUTf &lut)
{
int size = lut.getSize();
// Get the curve control points
std::vector<double> curveDescr = getPoints ();
rtengine::FlatCurve rtcurve(curveDescr, periodic, lut.getUpperBound() * 1.2 > 5000 ? 5000 : lut.getUpperBound() * 1.2);
double maxVal = double(lut.getUpperBound());
for (int i = 0; i < size; i++) {
double t = double(i) / maxVal;
lut[i] = rtcurve.getVal (t);
}
return;
}
void MyFlatCurve::interpolate ()
{
prevGraphW = graphW;
prevGraphH = graphH;
point((unsigned int)graphW);
get_LUT (point);
upoint.reset ();
lpoint.reset ();
curveIsDirty = false;
}
void MyFlatCurve::draw ()
{
if (!isDirty()) {
return;
}
if (!surfaceCreated()) {
return;
}
const double s = RTScalable::scalePixelSize(1.);
// re-calculate curve if dimensions changed
int currLUTSize = point.getUpperBound();
if (curveIsDirty
|| (currLUTSize == (GRAPH_SIZE * s) && (graphW > (GRAPH_SIZE * s)))
|| (currLUTSize > (GRAPH_SIZE * s) && (graphW <= (GRAPH_SIZE * s) || graphW != currLUTSize)) )
{
interpolate ();
}
Gtk::StateFlags state = !is_sensitive() ? Gtk::STATE_FLAG_INSENSITIVE : Gtk::STATE_FLAG_NORMAL;
Glib::RefPtr<Gtk::StyleContext> style = get_style_context();
Cairo::RefPtr<Cairo::Context> cr = getContext();
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, graphX, graphY-graphH, graphW, graphH);
Gdk::RGBA c;
cr->set_line_width (1.0 * s);
// Draw Locallab reference value in the background
if (locallabRef > 0.0) {
cr->set_line_width(1.0);
cr->move_to(double(graphX + 1), double(graphY - 1));
c = style->get_color(state);
cr->set_source_rgba(c.get_red(), c.get_green(), c.get_blue(), 0.2);
cr->line_to(double(graphX + 1), double(graphY - 1) - double(graphH - 2));
cr->line_to(double(graphX) + 1.5 + locallabRef*double(graphW -2), double(graphY - 1) - double(graphH - 2));
cr->line_to(double(graphX) + 1.5 + locallabRef*double(graphW -2), double(graphY - 1));
cr->close_path();
cr->fill();
cr->stroke();
}
// draw the left colored bar
if (leftBar) {
// first the background
BackBuffer *bb = this;
leftBar->setDrawRectangle(1. * s, graphY - graphH - 0.5, CBAR_WIDTH * s, graphH);
leftBar->expose(*this, bb);
// now the border
c = style->get_border_color(state);
cr->set_source_rgb (c.get_red(), c.get_green(), c.get_blue());
cr->rectangle(0.5 * s, graphY - graphH - 0.5 - 0.5 * s, (CBAR_WIDTH + 1) * s, (double)graphH + 1. + 1. * s);
cr->stroke();
}
// draw the bottom colored bar
if (bottomBar) {
// first the background
BackBuffer *bb = this;
bottomBar->setDrawRectangle(graphX - 0.5, graphY + (RADIUS + CBAR_MARGIN + 1.) * s, graphW + 1., CBAR_WIDTH * s);
bottomBar->expose(*this, bb);
// now the border
c = style->get_border_color(state);
cr->set_source_rgb (c.get_red(), c.get_green(), c.get_blue());
cr->rectangle(graphX - 0.5 - 0.5 * s, graphY + (RADIUS + CBAR_MARGIN + 0.5) * s, graphW + 1. + 0.5 * s, (CBAR_WIDTH + 1.) * s);
cr->stroke();
}
// draw f(x)=0.5 line
c = style->get_border_color(state);
cr->set_source_rgb (c.get_red(), c.get_green(), c.get_blue());
std::valarray<double> ds (1);
ds[0] = 4 * s;
cr->set_dash (ds, 0);
cr->move_to (graphX - 1. * s, graphY - graphH / 2.);
cr->rel_line_to (graphW + 2 * s, 0.);
cr->stroke ();
cr->unset_dash ();
cr->set_antialias (Cairo::ANTIALIAS_SUBPIXEL);
cr->set_line_width (1.0 * s);
cr->set_line_cap(Cairo::LINE_CAP_BUTT);
// draw the pipette values
if (pipetteR > -1.f || pipetteG > -1.f || pipetteB > -1.f) {
cr->set_line_width (0.75 * s);
cr->set_source_rgb (c.get_red(), c.get_green(), c.get_blue());
int n = 0;
if (pipetteR > -1.f) {
++n;
}
if (pipetteG > -1.f) {
++n;
}
if (pipetteB > -1.f) {
++n;
}
if (n > 1) {
if (pipetteR > -1.f) {
cr->set_source_rgba (1., 0., 0., 0.5); // WARNING: assuming that red values are stored in pipetteR, which might not be the case!
cr->move_to (graphX + graphW * static_cast<double>(pipetteR), graphY + 1. * s);
cr->rel_line_to (0, -graphH - 1. * s);
cr->stroke ();
}
if (pipetteG > -1.f) {
cr->set_source_rgba (0., 1., 0., 0.5); // WARNING: assuming that green values are stored in pipetteG, which might not be the case!
cr->move_to (graphX + graphW * static_cast<double>(pipetteG), graphY + 1. * s);
cr->rel_line_to (0, -graphH - 1. * s);
cr->stroke ();
}
if (pipetteB > -1.f) {
cr->set_source_rgba (0., 0., 1., 0.5); // WARNING: assuming that blue values are stored in pipetteB, which might not be the case!
cr->move_to (graphX + graphW * static_cast<double>(pipetteB), graphY + 1. * s);
cr->rel_line_to (0, -graphH - 1. * s);
cr->stroke ();
}
}
if (pipetteVal > -1.f) {
cr->set_line_width (2. * s);
c = style->get_color (state);
cr->set_source_rgb (c.get_red(), c.get_green(), c.get_blue());
cr->move_to (graphX + graphW * static_cast<double>(pipetteVal), graphY + 1. * s);
cr->rel_line_to (0, -graphH - 1. * s);
cr->stroke ();
cr->set_line_width (1. * s);
}
}
// draw the color feedback of the control points
if (colorProvider) {
//if (curve.type!=FCT_Parametric)
for (int i = 0; i < (int)curve.x.size(); ++i) {
if (curve.x.at(i) != -1.) {
double coloredLineWidth = rtengine::min<double>( rtengine::max<double>(75. * s, graphW) / (75. * s), 8. * s);
cr->set_line_width (coloredLineWidth);
colorProvider->colorForValue(curve.x.at(i), curve.y.at(i), CCET_VERTICAL_BAR, colorCallerId, this);
cr->set_source_rgb (ccRed, ccGreen, ccBlue);
if ( i == lit_point && (editedHandle & (FCT_EditedHandle_CPointUD | FCT_EditedHandle_CPoint | FCT_EditedHandle_CPointX)) ) {
cr->set_line_width (2 * coloredLineWidth);
}
cr->move_to (graphX + graphW * curve.x.at(i), graphY + 0.5 + 0.5 * s );
cr->rel_line_to (0., -graphH - 1. - s);
cr->stroke ();
cr->set_line_width (coloredLineWidth);
// draw the lit_point's horizontal line
bool drawHLine = false;
if (edited_point > -1) {
if (i == edited_point) {
cr->set_line_width (2 * coloredLineWidth);
drawHLine = true;
}
} else if (i == lit_point) {
if ( (area & (FCT_Area_H | FCT_Area_V | FCT_Area_Point)) || editedHandle == FCT_EditedHandle_CPointUD) {
if (editedHandle & (FCT_EditedHandle_CPointUD | FCT_EditedHandle_CPoint | FCT_EditedHandle_CPointY)) {
cr->set_line_width (2 * coloredLineWidth);
drawHLine = true;
}
}
}
if (drawHLine) {
int point = edited_point > -1 ? edited_point : lit_point;
colorProvider->colorForValue(curve.x.at(i), curve.y.at(i), CCET_HORIZONTAL_BAR, colorCallerId, this);
cr->set_source_rgb (ccRed, ccGreen, ccBlue);
cr->move_to (graphX - 0.5 - 0.5 * s , graphY - graphH * curve.y.at(point));
cr->rel_line_to (graphW + 1. + s, 0.);
cr->stroke ();
}
}
}
// endif
cr->set_line_width (1.0 * s);
} else {
cr->set_source_rgb (0.5, 0.0, 0.0);
if (edited_point > -1 || ((lit_point > -1) && ((area & (FCT_Area_H | FCT_Area_V | FCT_Area_Point)) || editedHandle == FCT_EditedHandle_CPointUD)) ) {
// draw the lit_point's vertical line
if (edited_point > -1 || (editedHandle & (FCT_EditedHandle_CPointUD | FCT_EditedHandle_CPoint | FCT_EditedHandle_CPointY))) {
cr->set_line_width (2.0 * s);
}
int point = edited_point > -1 ? edited_point : lit_point;
cr->move_to (graphX + graphW * curve.x.at(point), graphY + 0.5 + 0.5 * s );
cr->rel_line_to (0., -graphH - 1. - s);
cr->stroke ();
cr->set_line_width (1.0 * s);
// draw the lit_point's horizontal line
if (editedHandle & (FCT_EditedHandle_CPointUD | FCT_EditedHandle_CPoint | FCT_EditedHandle_CPointY)) {
cr->set_line_width (2.0 * s);
}
cr->move_to (graphX - 0.5 - 0.5 * s , graphY - graphH * curve.y.at(point));
cr->rel_line_to (graphW + 1. + s, 0.);
cr->stroke ();
cr->set_line_width (1.0 * s);
}
}
cr->set_line_cap(Cairo::LINE_CAP_SQUARE);
// draw the graph's borders:
c = style->get_border_color(state);
cr->set_source_rgb (c.get_red(), c.get_green(), c.get_blue());
cr->rectangle(graphX - 0.5 - 0.5 * s, graphY + 0.5 + 0.5 * s, graphW + 1. + 1. * s, -(graphH + 1. + 1. * s));
cr->stroke ();
double lineMinLength = 1. / graphW * (double)(SQUARE) * 0.9 * s;
if (tanHandlesDisplayed && lit_point != -1 && getHandles(lit_point) && curve.x.at(lit_point) != -1.) {
double x = graphX + graphW * curve.x.at(lit_point);
double y = graphY - graphH * curve.y.at(lit_point);
double x2;
double square;
bool crossingTheFrame;
// left handle is yellow
// TODO: finding a way to set the left handle color for flat curve editor
cr->set_source_rgb (1.0, 1.0, 0.0);
// draw tangential vectors
crossingTheFrame = false;
// We display the line only if it's longer than the handle knot half-size...
if (leftTanX < -0.00001) {
leftTanX += 1.0;
crossingTheFrame = true;
}
x2 = graphX + graphW * leftTanX;
if (curve.x.at(lit_point) - leftTanX > lineMinLength || crossingTheFrame) {
// The left tangential vector reappear on the right side
// draw the line
cr->move_to (x, y);
if (crossingTheFrame) {
cr->line_to (graphX - 0.5 - 0.5 * s, y);
cr->stroke ();
cr->move_to (graphX + graphW + 0.5 + 0.5 * s, y);
}
cr->line_to (x2, y);
cr->stroke ();
}
// draw tangential knot
square = (area == FCT_Area_LeftTan ? SQUARE * 2. : SQUARE) * s;
cr->rectangle(x2 - square, y - square, 2.*square, 2.*square);
cr->fill();
// right handle is blue
// TODO: finding a way to set the right handle color for flat curve editor
cr->set_source_rgb (0.0, 0.0, 1.0);
// draw tangential vectors
crossingTheFrame = false;
// We display the line only if it's longer than the handle knot half-size...
if (rightTanX > 1.00001) {
rightTanX -= 1.0;
crossingTheFrame = true;
}
x2 = graphX + graphW * rightTanX;
if (rightTanX - curve.x.at(lit_point) > lineMinLength || crossingTheFrame) {
// The left tangential vector reappear on the right side
// draw the line
cr->move_to (x, y);
if (crossingTheFrame) {
cr->line_to (graphX + graphW + 0.5 + 0.5 * s, y);
cr->stroke ();
cr->move_to (graphX - 0.5 - 0.5 * s, y);
}
cr->line_to (x2, y);
cr->stroke ();
}
// draw tangential knot
square = (area == FCT_Area_RightTan ? SQUARE * 2. : SQUARE) * s;
cr->rectangle(x2 - square, y - square, 2.*square, 2.*square);
cr->fill();
}
// draw curve
c = style->get_color(state);
cr->set_source_rgb (c.get_red(), c.get_green(), c.get_blue());
cr->move_to (graphX, static_cast<double>(getVal(point, 0)) * -graphH + graphY);
for (int i = 1; i < graphW; ++i) {
cr->line_to ((double)i + graphX, static_cast<double>(getVal(point, i)) * -graphH + graphY);
}
cr->stroke ();
// draw bullets
for (int i = 0; i < (int)curve.x.size(); ++i) {
if (curve.x.at(i) != -1.) {
if (i == edited_point) {
cr->set_source_rgb (1.0, 0.0, 0.0);
} else if (i == lit_point) {
if (colorProvider && edited_point == -1) {
colorProvider->colorForValue(curve.x.at(i), curve.y.at(i), CCET_POINT, colorCallerId, this);
cr->set_source_rgb (ccRed, ccGreen, ccBlue);
} else {
cr->set_source_rgb (1.0, 0.0, 0.0);
}
} else if (i == snapToElmt || i == edited_point) {
cr->set_source_rgb (1.0, 0.0, 0.0);
} else if (curve.y.at(i) == 0.5) {
cr->set_source_rgb (0.0, 0.5, 0.0);
} else {
cr->set_source_rgb (c.get_red(), c.get_green(), c.get_blue());
}
double x = graphX + graphW * curve.x.at(i); // project (curve.x.at(i), 0, 1, graphW);
double y = graphY - graphH * curve.y.at(i); // project (curve.y.at(i), 0, 1, graphH);
cr->arc (x, y, RADIUS * s + 0.5, 0, 2 * rtengine::RT_PI);
cr->fill ();
if (i == edited_point) {
cr->set_source_rgb (1.0, 0.0, 0.0);
cr->set_line_width(2. * s);
cr->arc (x, y, (RADIUS + 2.) * s, 0, 2 * rtengine::RT_PI);
cr->stroke();
cr->set_line_width(1. * s);
}
}
}
// endif
// draw the left and right tangent handles
if (tanHandlesDisplayed) {
double halfSquareSizeX = minDistanceX / 2.;
double halfSquareSizeY = minDistanceY / 2.;
// LEFT handle
// yellow
cr->set_source_rgb (1.0, 1.0, 0.0);
cr->rectangle(graphX + graphW * (leftTanHandle.centerX - halfSquareSizeX),
graphY - graphH * (leftTanHandle.centerY + halfSquareSizeY),
graphW * minDistanceX,
graphW * minDistanceY);
cr->fill();
// RIGHT handle
// blue
cr->set_source_rgb (0.0, 0.0, 1.0);
cr->rectangle(graphX + graphW * (rightTanHandle.centerX - halfSquareSizeX),
graphY - graphH * (rightTanHandle.centerY + halfSquareSizeY),
graphW * minDistanceX,
graphW * minDistanceY);
cr->fill();
}
setDirty(false);
queue_draw();
}
bool MyFlatCurve::on_draw(const ::Cairo::RefPtr< Cairo::Context> &cr)
{
Gtk::Allocation allocation = get_allocation();
allocation.set_x(0);
allocation.set_y(0);
const int s = RTScalable::scalePixelSize(1);
// setDrawRectangle will allocate the backbuffer Surface
if (setDrawRectangle(Cairo::FORMAT_ARGB32, allocation)) {
setDirty(true);
if (prevGraphW > (GRAPH_SIZE * s) || graphW > (GRAPH_SIZE * s)) {
curveIsDirty = true;
}
}
draw ();
copySurface(cr);
return false;
}
/*
* Return the X1, X2, Y position of the tangential handles.
*/
bool MyFlatCurve::getHandles(int n)
{
int N = curve.x.size();
double prevX, nextX;
double x, leftTan, rightTan;
if (n == -1) {
return false;
}
x = curve.x.at(n);
leftTan = curve.leftTangent.at(n);
rightTan = curve.rightTangent.at(n);
if (!n) {
// first point, the left handle is then computed with the last point's right handle
prevX = curve.x.at(N - 1) - 1.0;
nextX = curve.x.at(1);
} else if (n == N - 1) {
// last point, the right handle is then computed with the first point's left handle
prevX = curve.x.at(n - 1);
nextX = curve.x.at(0) + 1.0;
} else {
// last point, the right handle is then computed with the first point's left handle
prevX = curve.x.at(n - 1);
nextX = curve.x.at(n + 1);
}
if (leftTan == 0.0) {
leftTanX = x;
} else if (leftTan == 1.0) {
leftTanX = prevX;
} else {
leftTanX = (prevX - x) * leftTan + x;
}
if (rightTan == 0.0) {
rightTanX = x;
} else if (rightTan == 1.0) {
rightTanX = nextX;
} else {
rightTanX = (nextX - x) * rightTan + x;
}
return true;
}
bool MyFlatCurve::handleEvents (GdkEvent* event)
{
CursorShape new_type = cursor_type;
std::vector<double>::iterator itx, ity, itlt, itrt;
snapToElmt = -100;
bool retval = false;
int num = (int)curve.x.size();
/* graphW and graphH are the size of the graph */
calcDimensions();
if ((graphW < 0) || (graphH < 0)) {
return false;
}
const double s = RTScalable::scalePixelSize(1.);
minDistanceX = double(MIN_DISTANCE) / graphW * s;
minDistanceY = double(MIN_DISTANCE) / graphH * s;
switch (event->type) {
case GDK_BUTTON_PRESS:
if (edited_point == -1) { //curve.type!=FCT_Parametric) {
if (event->button.button == 1) {
buttonPressed = true;
add_modal_grab ();
// get the pointer position
getCursorPosition(Gdk::EventType(event->type), event->motion.is_hint != 0, int(event->button.x), int(event->button.y), Gdk::ModifierType(event->button.state));
getMouseOverArea();
// hide the tangent handles
tanHandlesDisplayed = false;
// Action on BUTTON_PRESS and no edited point
switch (area) {
case (FCT_Area_Insertion):
new_type = CSMove2D; // Shown when adding a new node in a blank area, both click and drag.
/* insert a new control point */
if (num > 0) {
if (clampedX > curve.x.at(closest_point)) {
++closest_point;
}
}
itx = curve.x.begin();
ity = curve.y.begin();
itlt = curve.leftTangent.begin();
itrt = curve.rightTangent.begin();
for (int i = 0; i < closest_point; i++) {
++itx;
++ity;
++itlt;
++itrt;
}
curve.x.insert (itx, 0);
curve.y.insert (ity, 0);
curve.leftTangent.insert (itlt, 0);
curve.rightTangent.insert (itrt, 0);
if (mod_type & GDK_CONTROL_MASK) {
clampedY = point.getVal01(clampedX);
}
// the graph is refreshed only if a new point is created
curve.x.at(closest_point) = clampedX;
curve.y.at(closest_point) = clampedY;
curve.leftTangent.at(closest_point) = 0.35;
curve.rightTangent.at(closest_point) = 0.35;
curveIsDirty = true;
setDirty(true);
draw ();
notifyListener ();
lit_point = closest_point;
// point automatically activated
editedHandle = FCT_EditedHandle_CPoint;
ugpX = curve.x.at(lit_point);
ugpY = curve.y.at(lit_point);
break;
case (FCT_Area_Point):
new_type = CSMove2D; // Shown when node clicked and dragged.
editedHandle = FCT_EditedHandle_CPoint;
ugpX = curve.x.at(lit_point);
ugpY = curve.y.at(lit_point);
break;
case (FCT_Area_H):
case (FCT_Area_V):
new_type = CSMove2D; // Shown when vertical line clicked, not dragged.
editedHandle = FCT_EditedHandle_CPointUD;
ugpX = curve.x.at(lit_point);
ugpY = curve.y.at(lit_point);
break;
case (FCT_Area_LeftTan):
new_type = CSEmpty;
editedHandle = FCT_EditedHandle_LeftTan;
ugpX = curve.leftTangent.at(lit_point);
break;
case (FCT_Area_RightTan):
new_type = CSEmpty;
editedHandle = FCT_EditedHandle_RightTan;
ugpX = curve.rightTangent.at(lit_point);
break;
default:
break;
}
} else if (event->button.button == 3) {
/* get the pointer position */
getCursorPosition(Gdk::EventType(event->type), event->motion.is_hint != 0, int(event->button.x), int(event->button.y), Gdk::ModifierType(event->button.state));
getMouseOverArea();
if (lit_point > -1 && lit_point != edited_point) {
if (editedHandle == FCT_EditedHandle_None) {
if (area == FCT_Area_Point || area == FCT_Area_V) {
// the cursor is close to an existing point
if (!coordinateAdjuster->is_visible()) {
coordinateAdjuster->showMe(this);
}
new_type = CSArrow;
tanHandlesDisplayed = false;
edited_point = lit_point;
setDirty(true);
draw ();
std::vector<CoordinateAdjuster::Boundaries> newBoundaries(4);
int size = curve.x.size();
if (edited_point == 0) {
newBoundaries.at(0).minVal = 0.;
newBoundaries.at(0).maxVal = curve.x.at(1);
} else if (edited_point == size - 1) {
newBoundaries.at(0).minVal = curve.x.at(edited_point - 1);
newBoundaries.at(0).maxVal = 1.;
} else if (curve.x.size() > 2) {
newBoundaries.at(0).minVal = curve.x.at(edited_point - 1);
newBoundaries.at(0).maxVal = curve.x.at(edited_point + 1);
}
newBoundaries.at(1).minVal = 0.;
newBoundaries.at(1).maxVal = 1.;
newBoundaries.at(2).minVal = 0.;
newBoundaries.at(2).maxVal = 1.;
newBoundaries.at(3).minVal = 0.;
newBoundaries.at(3).maxVal = 1.;
editedPos.at(0) = curve.x.at(edited_point);
editedPos.at(1) = curve.y.at(edited_point);
editedPos.at(2) = curve.leftTangent.at(edited_point);
editedPos.at(3) = curve.rightTangent.at(edited_point);
coordinateAdjuster->setPos(editedPos);
coordinateAdjuster->startNumericalAdjustment(newBoundaries);
}
}
}
retval = true;
}
if (buttonPressed) {
retval = true;
}
} else { // if (edited_point > -1)
if (event->button.button == 3) {
// do we edit another point?
/* get the pointer position */
getCursorPosition(Gdk::EventType(event->type), event->motion.is_hint != 0, int(event->button.x), int(event->button.y), Gdk::ModifierType(event->button.state));
getMouseOverArea();
if (area == FCT_Area_Point || area == FCT_Area_V) {
// the cursor is close to an existing point
if (lit_point != edited_point) {
edited_point = lit_point;
setDirty(true);
draw ();
std::vector<CoordinateAdjuster::Boundaries> newBoundaries(4);
int size = curve.x.size();
if (edited_point == 0) {
newBoundaries.at(0).minVal = 0.;
newBoundaries.at(0).maxVal = curve.x.at(1);
} else if (edited_point == size - 1) {
newBoundaries.at(0).minVal = curve.x.at(edited_point - 1);
newBoundaries.at(0).maxVal = 1.;
} else if (curve.x.size() > 2) {
newBoundaries.at(0).minVal = curve.x.at(edited_point - 1);
newBoundaries.at(0).maxVal = curve.x.at(edited_point + 1);
}
newBoundaries.at(1).minVal = 0.;
newBoundaries.at(1).maxVal = 1.;
newBoundaries.at(2).minVal = 0.;
newBoundaries.at(2).maxVal = 1.;
newBoundaries.at(3).minVal = 0.;
newBoundaries.at(3).maxVal = 1.;
editedPos.at(0) = curve.x.at(edited_point);
editedPos.at(1) = curve.y.at(edited_point);
editedPos.at(2) = curve.leftTangent.at(edited_point);
editedPos.at(3) = curve.rightTangent.at(edited_point);
coordinateAdjuster->switchAdjustedPoint(editedPos, newBoundaries);
retval = true;
}
} else if (area == FCT_Area_Insertion) {
// the cursor is inside the graph but away from existing points
new_type = CSPlus;
curveIsDirty = true;
stopNumericalAdjustment();
}
}
}
break;
case GDK_BUTTON_RELEASE:
if (edited_point == -1) { //curve.type!=FCT_Parametric) {
if (buttonPressed && event->button.button == 1) {
buttonPressed = false;
remove_modal_grab ();
// Removing any deleted point if we were previously modifying the point position
if (editedHandle & (FCT_EditedHandle_CPoint | FCT_EditedHandle_CPointX | FCT_EditedHandle_CPointY)) {
/* delete inactive points: */
int src, dst;
itx = curve.x.begin();
ity = curve.y.begin();
itlt = curve.leftTangent.begin();
itrt = curve.rightTangent.begin();
for (src = dst = 0; src < num; ++src)
if (curve.x.at(src) >= 0.0) {
curve.x.at(dst) = curve.x.at(src);
curve.y.at(dst) = curve.y.at(src);
curve.leftTangent.at(dst) = curve.leftTangent.at(src);
curve.rightTangent.at(dst) = curve.rightTangent.at(src);
++dst;
++itx;
++ity;
++itlt;
++itrt;
}
if (dst < src) {
// curve cleanup
curve.x.erase (itx, curve.x.end());
curve.y.erase (ity, curve.y.end());
curve.leftTangent.erase (itlt, curve.leftTangent.end());
curve.rightTangent.erase (itrt, curve.rightTangent.end());
if (curve.x.empty()) {
curve.x.push_back (0.5);
curve.y.push_back (0.5);
curve.leftTangent.push_back (0.3);
curve.rightTangent.push_back (0.3);
curveIsDirty = true;
}
}
}
editedHandle = FCT_EditedHandle_None;
lit_point = -1;
// get the pointer position
getCursorPosition(Gdk::EventType(event->type), event->motion.is_hint != 0, int(event->button.x), int(event->button.y), Gdk::ModifierType(event->button.state));
getMouseOverArea();
switch (area) {
case (FCT_Area_Insertion):
new_type = CSArrow;
break;
case (FCT_Area_Point):
new_type = CSMove2D; // Shown when node released.
break;
case (FCT_Area_H):
new_type = CSResizeHeight;
break;
case (FCT_Area_V):
new_type = CSMove2D; // Shown when line released.
break;
case (FCT_Area_LeftTan):
new_type = CSEmpty;
break;
case (FCT_Area_RightTan):
new_type = CSEmpty;
break;
default:
break;
}
setDirty(true);
draw ();
retval = true;
//notifyListener ();
}
}
break;
case GDK_MOTION_NOTIFY:
if (curve.type == FCT_Linear || curve.type == FCT_MinMaxCPoints) {
int previous_lit_point = lit_point;
enum MouseOverAreas prevArea = area;
snapToMinDistY = snapToMinDistX = 10.;
snapToValY = snapToValX = 0.;
snapToElmt = -100;
// get the pointer position
getCursorPosition(Gdk::EventType(event->type), event->motion.is_hint != 0, int(event->button.x), int(event->button.y), Gdk::ModifierType(event->button.state));
getMouseOverArea();
if (editedHandle == FCT_EditedHandle_CPointUD) {
double dX = deltaX;
double dY = deltaY;
if (dX < 0.) {
dX = -dX;
}
if (dY < 0.) {
dY = -dY;
}
if (dX > dY) {
editedHandle = FCT_EditedHandle_CPointX;
area = FCT_Area_V;
new_type = CSResizeWidth;
} else {
editedHandle = FCT_EditedHandle_CPointY;
area = FCT_Area_H;
new_type = CSResizeHeight;
}
}
switch (editedHandle) {
case (FCT_EditedHandle_None): {
if ((lit_point != -1 && previous_lit_point != lit_point) && (area & (FCT_Area_V | FCT_Area_Point)) && edited_point == -1) {
bool sameSide = false;
// display the handles
tanHandlesDisplayed = true;
if (curve.x.at(lit_point) < 3.*minDistanceX) {
// lit_point too near of the left border -> both handles are displayed on the right of the vertical line
rightTanHandle.centerX = leftTanHandle.centerX = curve.x.at(lit_point) + 2.*minDistanceX;
sameSide = true;
} else if (curve.x.at(lit_point) > 1. - 3.*minDistanceX) {
// lit_point too near of the left border -> both handles are displayed on the right of the vertical line
rightTanHandle.centerX = leftTanHandle.centerX = curve.x.at(lit_point) - 2.*minDistanceX;
sameSide = true;
} else {
leftTanHandle.centerX = curve.x.at(lit_point) - 2.*minDistanceX;
rightTanHandle.centerX = curve.x.at(lit_point) + 2.*minDistanceX;
}
if (sameSide) {
if (clampedY > 1. - 2.*minDistanceY) {
// lit_point too near of the top border
leftTanHandle.centerY = 1. - minDistanceY;
rightTanHandle.centerY = 1. - 3.*minDistanceY;
} else if (clampedY < 2.*minDistanceY) {
// lit_point too near of the bottom border
leftTanHandle.centerY = 3.*minDistanceY;
rightTanHandle.centerY = minDistanceY;
} else {
leftTanHandle.centerY = clampedY + minDistanceY;
rightTanHandle.centerY = clampedY - minDistanceY;
}
} else {
if (clampedY > 1. - minDistanceY) {
rightTanHandle.centerY = leftTanHandle.centerY = 1. - minDistanceY;
} else if (clampedY < minDistanceY) {
rightTanHandle.centerY = leftTanHandle.centerY = minDistanceY;
} else {
rightTanHandle.centerY = leftTanHandle.centerY = clampedY;
}
}
} else if (lit_point == -1 || edited_point > -1) {
tanHandlesDisplayed = false;
}
if (edited_point == -1) {
switch (area) {
case (FCT_Area_Insertion):
new_type = CSPlus;
break;
case (FCT_Area_Point):
//new_type = CSMove;
//break;
case (FCT_Area_V):
new_type = CSPlus; // Shown when hovering over vertical line.
break;
case (FCT_Area_H):
new_type = CSResizeHeight;
break;
case (FCT_Area_LeftTan):
new_type = CSMoveLeft;
break;
case (FCT_Area_RightTan):
new_type = CSMoveRight;
break;
case (FCT_Area_None):
default:
new_type = CSArrow;
break;
}
}
if ((lit_point != previous_lit_point) || (prevArea != area)) {
setDirty(true);
draw ();
}
if (coordinateAdjuster->is_visible() && edited_point == -1) {
if (lit_point > -1) {
if (lit_point != previous_lit_point) {
editedPos.at(0) = curve.x.at(lit_point);
editedPos.at(1) = curve.y.at(lit_point);
editedPos.at(2) = curve.leftTangent.at(lit_point);
editedPos.at(3) = curve.rightTangent.at(lit_point);
}
coordinateAdjuster->setPos(editedPos);
} else if (area == FCT_Area_Insertion) {
editedPos.at(0) = clampedX;
editedPos.at(1) = clampedY;
editedPos.at(2) = 0.;
editedPos.at(3) = 0.;
coordinateAdjuster->setPos(editedPos);
} else {
editedPos.at(0) = editedPos.at(1) = editedPos.at(2) = editedPos.at(3) = 0;
coordinateAdjuster->setPos(editedPos);
}
}
break;
}
case (FCT_EditedHandle_CPoint):
movePoint(true, true);
if (coordinateAdjuster->is_visible()) {
editedPos.at(0) = curve.x.at(lit_point);
editedPos.at(1) = curve.y.at(lit_point);
coordinateAdjuster->setPos(editedPos);
}
break;
case (FCT_EditedHandle_CPointX):
movePoint(true, false);
if (coordinateAdjuster->is_visible()) {
editedPos.at(0) = curve.x.at(lit_point);
coordinateAdjuster->setPos(editedPos);
}
break;
case (FCT_EditedHandle_CPointY):
movePoint(false, true);
if (coordinateAdjuster->is_visible()) {
editedPos.at(1) = curve.y.at(lit_point);
coordinateAdjuster->setPos(editedPos);
}
break;
case (FCT_EditedHandle_LeftTan): {
double prevValue = curve.leftTangent.at(lit_point);
ugpX -= deltaX * 3;
ugpX = CLAMP(ugpX, 0., 1.);
if (snapTo) {
// since this handle can only move in one direction, we can reuse the snapCoordinateX mechanism
snapCoordinateX(0.0, ugpX);
snapCoordinateX(0.35, ugpX);
snapCoordinateX(0.5, ugpX);
snapCoordinateX(1.0, ugpX);
curve.leftTangent.at(lit_point) = snapToValX;
} else {
curve.leftTangent.at(lit_point) = ugpX;
}
if (curve.leftTangent.at(lit_point) != prevValue) {
curveIsDirty = true;
setDirty(true);
draw ();
notifyListener ();
if (coordinateAdjuster->is_visible()) {
editedPos.at(2) = curve.leftTangent.at(lit_point);
coordinateAdjuster->setPos(editedPos);
}
}
break;
}
case (FCT_EditedHandle_RightTan): {
double prevValue = curve.rightTangent.at(lit_point);
ugpX += deltaX * 3;
ugpX = CLAMP(ugpX, 0., 1.);
if (snapTo) {
// since this handle can only move in one direction, we can reuse the snapCoordinateX mechanism
snapCoordinateX(0.0, ugpX);
snapCoordinateX(0.35, ugpX);
snapCoordinateX(0.5, ugpX);
snapCoordinateX(1.0, ugpX);
curve.rightTangent.at(lit_point) = snapToValX;
} else {
curve.rightTangent.at(lit_point) = ugpX;
}
if (curve.rightTangent.at(lit_point) != prevValue) {
curveIsDirty = true;
setDirty(true);
draw ();
notifyListener ();
editedPos.at(3) = curve.rightTangent.at(lit_point);
coordinateAdjuster->setPos(editedPos);
}
break;
}
// already processed before the "switch" instruction
//case (FCT_EditedHandle_CPointUD):
default:
break;
}
if (edited_point == -1) {
if (lit_point == -1) {
editedPos.at(0) = editedPos.at(1) = editedPos.at(2) = editedPos.at(3) = 0;
} else if (editedPos.at(0) != curve.x.at(lit_point)
|| editedPos.at(1) != curve.y.at(lit_point)
|| editedPos.at(2) != curve.leftTangent.at(lit_point)
|| editedPos.at(3) != curve.rightTangent.at(lit_point)) {
editedPos.at(0) = curve.x.at(lit_point);
editedPos.at(1) = curve.y.at(lit_point);
editedPos.at(2) = curve.leftTangent.at(lit_point);
editedPos.at(3) = curve.rightTangent.at(lit_point);
coordinateAdjuster->setPos(editedPos);
}
}
}
retval = true;
break;
case GDK_LEAVE_NOTIFY:
// Pointer can LEAVE even when dragging the point, so we don't modify the cursor in this case
// The cursor will have to LEAVE another time after the drag...
if (editedHandle == FCT_EditedHandle_None) {
new_type = CSArrow;
lit_point = -1;
tanHandlesDisplayed = false;
pipetteR = pipetteG = pipetteB = -1.f;
setDirty(true);
draw ();
}
retval = true;
break;
default:
break;
}
if (new_type != cursor_type) {
cursor_type = new_type;
CursorManager::setCursorOfMainWindow(get_window(), cursor_type);
}
return retval;
}
void MyFlatCurve::pipetteMouseOver (CurveEditor *ce, EditDataProvider *provider, int modifierKey)
{
if (!provider) {
// occurs when leaving the preview area -> cleanup the curve editor
pipetteR = pipetteG = pipetteB = -1.f;
lit_point = -1;
editedHandle = FCT_EditedHandle_None;
return;
}
pipetteR = provider->getPipetteVal1();
pipetteG = provider->getPipetteVal2();
pipetteB = provider->getPipetteVal3();
pipetteVal = 0.f;
if (listener) {
pipetteVal = listener->blendPipetteValues(ce, pipetteR, pipetteG, pipetteB);
} else {
int n = 0;
if (pipetteR != -1.f) {
pipetteVal += pipetteR;
++n;
}
if (pipetteG != -1.f) {
pipetteVal += pipetteG;
++n;
}
if (pipetteB != -1.f) {
pipetteVal += pipetteB;
++n;
}
if (n > 1) {
pipetteVal /= n;
} else if (!n) {
pipetteVal = -1.f;
}
}
snapToElmt = -100;
/* graphW and graphH are the size of the graph */
calcDimensions();
if ((graphW < 0) || (graphH < 0)) {
return;
}
int previous_lit_point = lit_point;
// hide the handles
tanHandlesDisplayed = false;
// get the pointer position
int px = graphX + int(float(graphW) * pipetteVal); // WARNING: converting pipetteVal from float to int, precision loss here!
getCursorPosition(Gdk::EventType(Gdk::BUTTON_PRESS), false, px, graphY, Gdk::ModifierType(modifierKey));
if (edited_point == -1) {
getMouseOverArea();
}
if (area == FCT_Area_Point) {
area = FCT_Area_V;
}
snapToMinDistY = snapToMinDistX = 10.;
snapToValY = snapToValX = 0.;
if (edited_point == -1) {
if (editedHandle == FCT_EditedHandle_None && lit_point != previous_lit_point) {
setDirty(true);
draw ();
}
} else {
draw();
}
if (edited_point == -1) {
editedPos.at(0) = pipetteVal;
editedPos.at(1) = point.getVal01(pipetteVal);
coordinateAdjuster->setPos(editedPos);
}
}
// returns true if a point is being dragged
bool MyFlatCurve::pipetteButton1Pressed(EditDataProvider *provider, int modifierKey)
{
if (edited_point > -1) {
return false;
}
buttonPressed = true;
// get the pointer position
int px = graphX + int(float(graphW) * pipetteVal); // WARNING: converting pipetteVal from float to int, precision loss here!
getCursorPosition(Gdk::EventType(Gdk::BUTTON_PRESS), false, px, graphY, Gdk::ModifierType(modifierKey));
getMouseOverArea();
// hide the tangent handles
tanHandlesDisplayed = false;
const int s = RTScalable::scalePixelSize(1);
// Action on BUTTON_PRESS and no edited point
switch (area) {
case (FCT_Area_Insertion): {
rtengine::FlatCurve rtCurve(getPoints(), true, GRAPH_SIZE * s);
std::vector<double>::iterator itx, ity, itlt, itrt;
int num = (int)curve.x.size();
/* insert a new control point */
if (num > 0) {
if (clampedX > curve.x.at(closest_point)) {
++closest_point;
}
}
itx = curve.x.begin();
ity = curve.y.begin();
itlt = curve.leftTangent.begin();
itrt = curve.rightTangent.begin();
for (int i = 0; i < closest_point; i++) {
++itx;
++ity;
++itlt;
++itrt;
}
curve.x.insert (itx, 0);
curve.y.insert (ity, 0);
curve.leftTangent.insert (itlt, 0);
curve.rightTangent.insert (itrt, 0);
num++;
// the graph is refreshed only if a new point is created
curve.x.at(closest_point) = clampedX;
curve.y.at(closest_point) = clampedY = rtCurve.getVal(pipetteVal);
curve.leftTangent.at(closest_point) = 0.35;
curve.rightTangent.at(closest_point) = 0.35;
curveIsDirty = true;
setDirty(true);
draw ();
notifyListener ();
lit_point = closest_point;
// point automatically activated
editedHandle = FCT_EditedHandle_CPointY;
ugpX = curve.x.at(lit_point);
ugpY = curve.y.at(lit_point);
break;
}
case (FCT_Area_V):
editedHandle = FCT_EditedHandle_CPointY;
ugpX = curve.x.at(lit_point);
ugpY = curve.y.at(lit_point);
break;
default:
break;
}
return true;
}
void MyFlatCurve::pipetteButton1Released(EditDataProvider *provider)
{
if (edited_point > -1) {
return;
}
buttonPressed = false;
remove_modal_grab ();
editedHandle = FCT_EditedHandle_None;
lit_point = -1;
// get the pointer position
int px = graphX + int(float(graphW) * pipetteVal); // WARNING: converting pipetteVal from float to int, precision loss here!
getCursorPosition(Gdk::EventType(Gdk::BUTTON_PRESS), false, px, graphY, Gdk::ModifierType(0));
getMouseOverArea();
setDirty(true);
draw ();
//notifyListener ();
}
void MyFlatCurve::pipetteDrag(EditDataProvider *provider, int modifierKey)
{
if (edited_point > -1) {
return;
}
snapToMinDistY = snapToMinDistX = 10.;
snapToValY = snapToValX = 0.;
snapToElmt = -100;
// get the pointer position
getCursorPosition(Gdk::MOTION_NOTIFY, false, cursorX + graphX, graphY + provider->deltaScreen.y, Gdk::ModifierType(modifierKey));
getMouseOverArea();
if (editedHandle == FCT_EditedHandle_CPointY) {
movePoint(false, true, true);
}
}
void MyFlatCurve::movePoint(bool moveX, bool moveY, bool pipetteDrag)
{
// bounds of the grabbed point
double leftBound;
double rightBound;
double const bottomBound = 0.;
double const topBound = 1.;
// we memorize the previous position of the point, for optimization purpose
double prevPosX = curve.x.at(lit_point);
double prevPosY = curve.y.at(lit_point);
int nbPoints = (int)curve.x.size();
// left and right bound rely on curve periodicity
leftBound = (lit_point == 0 ) ? (periodic && !snapTo ? curve.x.at(nbPoints - 1) - 1. : 0.) : curve.x.at(lit_point - 1);
rightBound = (lit_point == nbPoints - 1) ? (periodic && !snapTo ? curve.x.at(0) + 1. : 1.) : curve.x.at(lit_point + 1);
double leftDeletionBound = leftBound - minDistanceX;
double rightDeletionBound = rightBound + minDistanceX;
double bottomDeletionBound = bottomBound - minDistanceY;
double topDeletionBound = topBound + minDistanceY;
if (moveX) {
// we memorize the previous position of the point, for optimization purpose
ugpX += deltaX;
// handling periodicity (the first and last point can reappear at the other side of the X range)
if (periodic) {
if (snapTo) {
if (lit_point == 0) {
snapCoordinateX(0.0, ugpX);
curve.x.at(0) = snapToValX;
} else if (lit_point == (nbPoints - 1)) {
snapCoordinateX(1.0, ugpX);
curve.x.at(nbPoints - 1) = snapToValX;
}
} else if (lit_point == 0 && ugpX < 0.) {
// the first point has to be placed at the tail of the point list
std::vector<double>::iterator itx, ity, itlt, itrt;
ugpX += 1.;
leftBound += 1.;
rightBound += 1.;
leftDeletionBound += 1.;
rightDeletionBound += 1.;
// adding a copy of the first point to the tail of the list
curve.x.push_back(curve.x.at(0));
curve.y.push_back(curve.y.at(0));
curve.leftTangent.push_back(curve.leftTangent.at(0));
curve.rightTangent.push_back(curve.rightTangent.at(0));
// deleting the first point
itx = curve.x.begin();
ity = curve.y.begin();
itlt = curve.leftTangent.begin();
itrt = curve.rightTangent.begin();
curve.x.erase(itx);
curve.y.erase(ity);
curve.leftTangent.erase(itlt);
curve.rightTangent.erase(itrt);
lit_point = nbPoints - 1;
} else if (lit_point == (nbPoints - 1) && ugpX > 1.) {
// the last point has to be placed at the head of the point list
std::vector<double>::iterator itx, ity, itlt, itrt;
ugpX -= 1.;
leftBound -= 1.;
rightBound -= 1.;
leftDeletionBound -= 1.;
rightDeletionBound -= 1.;
// adding a copy of the last point to the head of the list
itx = curve.x.begin();
ity = curve.y.begin();
itlt = curve.leftTangent.begin();
itrt = curve.rightTangent.begin();
curve.x.insert(itx, 0);
curve.y.insert(ity, 0);
curve.leftTangent.insert(itlt, 0);
curve.rightTangent.insert(itrt, 0);
curve.x.at(0) = curve.x.at(nbPoints);
curve.y.at(0) = curve.y.at(nbPoints);
curve.leftTangent.at(0) = curve.leftTangent.at(nbPoints);
curve.rightTangent.at(0) = curve.rightTangent.at(nbPoints);
// deleting the last point
curve.x.pop_back();
curve.y.pop_back();
curve.leftTangent.pop_back();
curve.rightTangent.pop_back();
lit_point = 0;
}
}
// handling limitations along X axis
if (ugpX >= rightDeletionBound && nbPoints > 2 && !snapTo) {
curve.x.at(lit_point) = -1.;
} else if (ugpX <= leftDeletionBound && nbPoints > 2 && !snapTo) {
curve.x.at(lit_point) = -1.;
} else
// nextPosX is in bounds
{
curve.x.at(lit_point) = CLAMP(ugpX, leftBound, rightBound);
}
}
if (moveY) {
// we memorize the previous position of the point, for optimization purpose
ugpY += deltaY;
// the points stay in the bounds (and can't be deleted) in pipette drag mode
if (pipetteDrag) {
ugpY = CLAMP(ugpY, 0.0, 1.0);
}
// snapping point to specific values
if (snapTo && curve.x.at(lit_point) != -1) {
// the unclamped grabbed point is brought back in the range
ugpY = CLAMP(ugpY, 0.0, 1.0);
if (lit_point == 0) {
int prevP = curve.y.size() - 1;
if (snapCoordinateY(curve.y.at(prevP), ugpY)) {
snapToElmt = prevP;
}
} else {
int prevP = lit_point - 1;
if (snapCoordinateY(curve.y.at(prevP), ugpY)) {
snapToElmt = prevP;
}
}
if (curve.y.size() > 2) {
if (lit_point == int(curve.y.size()) - 1) {
if (snapCoordinateY(curve.y.at(0), ugpY)) {
snapToElmt = 0;
}
} else {
int nextP = lit_point + 1;
if (snapCoordinateY(curve.y.at(nextP), ugpY)) {
snapToElmt = nextP;
}
}
}
if (snapCoordinateY(1.0, ugpY)) {
snapToElmt = -3;
}
if (snapCoordinateY(0.5, ugpY)) {
snapToElmt = -2;
}
if (snapCoordinateY(0.0, ugpY)) {
snapToElmt = -1;
}
curve.y.at(lit_point) = snapToValY;
}
// Handling limitations along Y axis
if (ugpY >= topDeletionBound && nbPoints > 2) {
if (curve.x.at(lit_point) != -1.) {
deletedPointX = curve.x.at(lit_point);
curve.x.at(lit_point) = -1.;
curve.y.at(lit_point) = ugpY; // This is only to force the redraw of the curve
}
} else if (ugpY <= bottomDeletionBound && nbPoints > 2) {
if (curve.x.at(lit_point) != -1.) {
deletedPointX = curve.x.at(lit_point);
curve.x.at(lit_point) = -1.;
curve.y.at(lit_point) = ugpY; // This is only to force the redraw of the curve
}
} else {
// nextPosY is in the bounds
if (!snapTo) {
curve.y.at(lit_point) = CLAMP(ugpY, 0.0, 1.0);
}
if (!moveX && curve.x.at(lit_point) == -1.) {
// bring back the X value of the point if it reappear
curve.x.at(lit_point) = deletedPointX;
}
}
}
if (curve.x.at(lit_point) != prevPosX || curve.y.at(lit_point) != prevPosY) {
// we recompute the curve only if we have to
curveIsDirty = true;
setDirty(true);
draw ();
notifyListener ();
}
}
// Set data relative to cursor position
void MyFlatCurve::getCursorPosition(Gdk::EventType evType, bool isHint, int evX, int evY, Gdk::ModifierType modifierKey)
{
int tx, ty;
int prevCursorX, prevCursorY;
double incrementX = 1. / double(graphW);
double incrementY = 1. / double(graphH);
switch (evType) {
case (Gdk::MOTION_NOTIFY) :
if (isHint) {
get_window()->get_pointer (tx, ty, mod_type);
} else {
tx = evX;
ty = evY;
mod_type = modifierKey;
}
break;
case (Gdk::BUTTON_PRESS) :
case (Gdk::BUTTON_RELEASE) :
tx = evX;
ty = evY;
mod_type = modifierKey;
break;
default :
// The cursor position is not available
return;
break;
}
if (editedHandle != FCT_EditedHandle_None) {
prevCursorX = cursorX;
prevCursorY = cursorY;
}
cursorX = tx - graphX;
cursorY = graphY - ty;
preciseCursorX = cursorX * incrementX;
preciseCursorY = cursorY * incrementY;
snapTo = false;
// update deltaX/Y if the user drags a point
if (editedHandle != FCT_EditedHandle_None) {
// set the dragging factor
int control_key = mod_type & GDK_CONTROL_MASK;
int shift_key = mod_type & GDK_SHIFT_MASK;
// the increment get smaller if modifier key are used, and "snap to" may be enabled
if (control_key) {
incrementX *= 0.05;
incrementY *= 0.05;
}
if (shift_key) {
snapTo = true;
}
deltaX = (double)(cursorX - prevCursorX) * incrementX;
deltaY = (double)(cursorY - prevCursorY) * incrementY;
}
// otherwise set the position of the new point (modifier keys has no effect here)
else {
clampedX = CLAMP (preciseCursorX, 0., 1.); // X position of the pointer from the origin of the graph
clampedY = CLAMP (preciseCursorY, 0., 1.); // Y position of the pointer from the origin of the graph
}
}
// Find out the active area under the cursor
void MyFlatCurve::getMouseOverArea ()
{
// When dragging an element, editedHandle keep its value
if (editedHandle == FCT_EditedHandle_None) { // && curve.type!=Parametric
double minDist = 1000; // used to find out the point pointed by the cursor (over it)
double minDistX = 1000; // used to find out the closest point
double dX, dY;
double absDX;
double dist;
bool aboveVLine = false;
// NB: this function assume that the graph's shape is a square
// Check if the cursor is over a tangent handle
if (tanHandlesDisplayed) {
if (preciseCursorX >= (leftTanHandle.centerX - minDistanceX) && preciseCursorX <= (leftTanHandle.centerX + minDistanceX + 0.00001)
&& preciseCursorY >= (leftTanHandle.centerY - minDistanceY) && preciseCursorY <= (leftTanHandle.centerY + minDistanceY)) {
area = FCT_Area_LeftTan;
return;
}
if (preciseCursorX >= (rightTanHandle.centerX - minDistanceX - 0.00001) && preciseCursorX <= (rightTanHandle.centerX + minDistanceX)
&& preciseCursorY >= (rightTanHandle.centerY - minDistanceY ) && preciseCursorY <= (rightTanHandle.centerY + minDistanceY)) {
area = FCT_Area_RightTan;
return;
}
}
area = FCT_Area_None;
closest_point = 0;
lit_point = -1;
for (int i = 0; i < (int)curve.x.size(); i++) {
if (curve.x.at(i) != -1) {
dX = curve.x.at(i) - preciseCursorX;
absDX = dX > 0 ? dX : -dX;
if (absDX < minDistX) {
minDistX = absDX;
closest_point = i;
lit_point = i;
}
if (absDX <= minDistanceX) {
aboveVLine = true;
dY = curve.y.at(i) - preciseCursorY;
dist = sqrt(dX * dX + dY * dY);
if (dist < minDist) {
minDist = dist;
}
}
}
}
if (minDist <= minDistanceX) {
// the cursor is over the point
area = FCT_Area_Point;
} else if (aboveVLine) {
area = FCT_Area_V;
} else {
// Check if the cursor is in an insertion area
lit_point = -1;
if (preciseCursorX >= 0.0 && preciseCursorX <= 1.0 && preciseCursorY >= 0.0 && preciseCursorY <= 1.0) {
area = FCT_Area_Insertion;
}
}
}
}
std::vector<double> MyFlatCurve::getPoints ()
{
std::vector<double> result;
/*if (curve.type==FCT_Parametric) {
result.push_back ((double)(Parametric));
for (int i=0; i<(int)curve.x.size(); i++) {
result.push_back (curve.x.at(i));
}
}
else {*/
// the first value gives the type of the curve
if (curve.type == FCT_Linear) {
result.push_back ((double)(FCT_Linear));
} else if (curve.type == FCT_MinMaxCPoints) {
result.push_back ((double)(FCT_MinMaxCPoints));
}
// then we push all the points coordinate
for (int i = 0; i < (int)curve.x.size(); i++) {
if (curve.x.at(i) >= 0) {
result.push_back (curve.x.at(i));
result.push_back (curve.y.at(i));
result.push_back (curve.leftTangent.at(i));
result.push_back (curve.rightTangent.at(i));
}
}
//}
return result;
}
void MyFlatCurve::setPoints (const std::vector<double>& p)
{
int ix = 0;
stopNumericalAdjustment();
FlatCurveType t = (FlatCurveType)p[ix++];
curve.type = t;
lit_point = -1;
if (t == FCT_MinMaxCPoints) {
curve.x.clear ();
curve.y.clear ();
curve.leftTangent.clear();
curve.rightTangent.clear();
for (int i = 0; i < (int)p.size() / 4; i++) {
curve.x.push_back (p[ix++]);
curve.y.push_back (p[ix++]);
curve.leftTangent.push_back (p[ix++]);
curve.rightTangent.push_back (p[ix++]);
}
}
curveIsDirty = true;
setDirty(true);
queue_draw ();
}
void MyFlatCurve::setPos(double pos, int chanIdx)
{
assert (edited_point > -1);
switch (chanIdx) {
case (0):
curve.x.at(edited_point) = pos;
break;
case (1):
curve.y.at(edited_point) = pos;
break;
case (2):
curve.leftTangent.at(edited_point) = pos;
break;
case (3):
curve.rightTangent.at(edited_point) = pos;
break;
}
curveIsDirty = true;
setDirty(true);
draw();
notifyListener ();
}
void MyFlatCurve::stopNumericalAdjustment()
{
if (edited_point > -1) {
edited_point = lit_point = -1;
area = FCT_Area_None;
coordinateAdjuster->stopNumericalAdjustment();
setDirty(true);
draw();
}
}
void MyFlatCurve::updateLocallabBackground(double ref)
{
locallabRef = ref;
mcih->pending++;
idle_register.add(
[this]() -> bool
{
if (mcih->destroyed) {
if (mcih->pending == 1) {
delete mcih;
} else {
--mcih->pending;
}
return false;
}
mcih->clearPixmap();
mcih->myCurve->queue_draw();
--mcih->pending;
return false;
}
);
}
void MyFlatCurve::setType (FlatCurveType t)
{
curve.type = t;
setDirty(true);
}
void MyFlatCurve::reset(const std::vector<double> &resetCurve, double identityValue)
{
calcDimensions();
stopNumericalAdjustment();
// If a resetCurve exist (non empty)
if (!resetCurve.empty()) {
setPoints(resetCurve);
return;
}
switch (curve.type) {
case FCT_MinMaxCPoints :
defaultCurve(identityValue);
lit_point = -1;
curveIsDirty = true;
break;
//case Parametric :
// Nothing to do (?)
default:
break;
}
setDirty(true);
draw();
}
void MyFlatCurve::defaultCurve (double iVal)
{
curve.x.resize(6);
curve.y.resize(6);
curve.leftTangent.resize(6);
curve.rightTangent.resize(6);
// Point for RGBCMY colors
for (int i = 0; i < 6; i++) {
curve.x.at(i) = (1. / 6.) * i;
curve.y.at(i) = iVal;
curve.leftTangent.at(i) = 0.35;
curve.rightTangent.at(i) = 0.35;
}
}
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