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/***************************************************************************
* Copyright (c) 2022 Abdullah Tahiri <abdullah.tahiri.yo@gmail.com> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library 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 Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#ifndef SKETCHERGUI_DrawSketchHandlerLineSet_H
#define SKETCHERGUI_DrawSketchHandlerLineSet_H
#include <QApplication>
#include <Inventor/events/SoKeyboardEvent.h>
#include <boost/math/special_functions/fpclassify.hpp>
#include <Gui/Notifications.h>
#include <Gui/Command.h>
#include <Gui/CommandT.h>
#include <Gui/InputHint.h>
#include <Mod/Sketcher/App/SketchObject.h>
#include "DrawSketchHandler.h"
#include "GeometryCreationMode.h"
#include "Utils.h"
#include "ViewProviderSketch.h"
#include "SnapManager.h"
namespace SketcherGui
{
extern GeometryCreationMode geometryCreationMode; // defined in CommandCreateGeo.cpp
class DrawSketchHandlerLineSet: public DrawSketchHandler
{
Q_DECLARE_TR_FUNCTIONS(SketcherGui::DrawSketchHandlerLineSet)
public:
DrawSketchHandlerLineSet()
: Mode(STATUS_SEEK_First)
, SegmentMode(SEGMENT_MODE_Line)
, TransitionMode(TRANSITION_MODE_Free)
, SnapMode(SNAP_MODE_Free)
, suppressTransition(false)
, EditCurve(2)
, firstCurve(-1)
, previousCurve(-1)
, firstPosId(Sketcher::PointPos::none)
, previousPosId(Sketcher::PointPos::none)
, startAngle(0)
, endAngle(0)
, arcRadius(0)
, firstsegment(true)
{}
~DrawSketchHandlerLineSet() override = default;
/// mode table
enum SELECT_MODE
{
STATUS_SEEK_First,
STATUS_SEEK_Second,
STATUS_Do,
STATUS_Close
};
enum SEGMENT_MODE
{
SEGMENT_MODE_Arc,
SEGMENT_MODE_Line
};
enum TRANSITION_MODE
{
TRANSITION_MODE_Free,
TRANSITION_MODE_Tangent,
TRANSITION_MODE_Perpendicular_L,
TRANSITION_MODE_Perpendicular_R
};
enum SNAP_MODE
{
SNAP_MODE_Free,
SNAP_MODE_45Degree
};
void registerPressedKey(bool pressed, int key) override
{
if (Mode == STATUS_SEEK_Second && key == SoKeyboardEvent::M && pressed
&& previousCurve != -1) {
// loop through the following modes:
// SEGMENT_MODE_Line, TRANSITION_MODE_Free / TRANSITION_MODE_Tangent
// SEGMENT_MODE_Line, TRANSITION_MODE_Perpendicular_L
// SEGMENT_MODE_Line, TRANSITION_MODE_Tangent / TRANSITION_MODE_Free
// SEGMENT_MODE_Arc, TRANSITION_MODE_Tangent
// SEGMENT_MODE_Arc, TRANSITION_MODE_Perpendicular_L
// SEGMENT_MODE_Arc, TRANSITION_MODE_Perpendicular_R
SnapMode = SNAP_MODE_Free;
Base::Vector2d onSketchPos;
if (SegmentMode == SEGMENT_MODE_Line) {
onSketchPos = EditCurve[EditCurve.size() - 1];
}
else {
onSketchPos = EditCurve[29];
}
const Part::Geometry* geom = sketchgui->getSketchObject()->getGeometry(previousCurve);
if (SegmentMode == SEGMENT_MODE_Line) {
switch (TransitionMode) {
case TRANSITION_MODE_Free:
if (geom->is<Part::GeomArcOfCircle>()) { // 3rd mode
SegmentMode = SEGMENT_MODE_Arc;
TransitionMode = TRANSITION_MODE_Tangent;
}
else { // 1st mode
TransitionMode = TRANSITION_MODE_Perpendicular_L;
}
break;
case TRANSITION_MODE_Perpendicular_L: // 2nd mode
if (geom->is<Part::GeomArcOfCircle>()) {
TransitionMode = TRANSITION_MODE_Free;
}
else {
TransitionMode = TRANSITION_MODE_Tangent;
}
break;
case TRANSITION_MODE_Tangent:
if (geom->is<Part::GeomArcOfCircle>()) { // 1st mode
TransitionMode = TRANSITION_MODE_Perpendicular_L;
}
else { // 3rd mode
SegmentMode = SEGMENT_MODE_Arc;
TransitionMode = TRANSITION_MODE_Tangent;
}
break;
default: // unexpected mode
TransitionMode = TRANSITION_MODE_Free;
break;
}
}
else {
switch (TransitionMode) {
case TRANSITION_MODE_Tangent: // 4th mode
TransitionMode = TRANSITION_MODE_Perpendicular_L;
break;
case TRANSITION_MODE_Perpendicular_L: // 5th mode
TransitionMode = TRANSITION_MODE_Perpendicular_R;
break;
default: // 6th mode (Perpendicular_R) + unexpected mode
SegmentMode = SEGMENT_MODE_Line;
if (geom->is<Part::GeomArcOfCircle>()) {
TransitionMode = TRANSITION_MODE_Tangent;
}
else {
TransitionMode = TRANSITION_MODE_Free;
}
break;
}
}
if (SegmentMode == SEGMENT_MODE_Line) {
EditCurve.resize(TransitionMode == TRANSITION_MODE_Free ? 2 : 3);
}
else {
EditCurve.resize(32);
}
auto snapHandle = std::make_unique<SnapManager::SnapHandle>(nullptr, onSketchPos);
mouseMove(*snapHandle); // trigger an update of EditCurve
}
else {
DrawSketchHandler::registerPressedKey(pressed, key);
}
}
void mouseMove(SnapManager::SnapHandle snapHandle) override
{
using std::numbers::pi;
Base::Vector2d onSketchPos = snapHandle.compute();
suppressTransition = false;
if (Mode == STATUS_SEEK_First) {
setPositionText(onSketchPos);
seekAndRenderAutoConstraint(sugConstr1, onSketchPos, Base::Vector2d(0.f, 0.f));
}
else if (Mode == STATUS_SEEK_Second) {
if (SegmentMode == SEGMENT_MODE_Line) {
EditCurve[EditCurve.size() - 1] = onSketchPos;
if (TransitionMode == TRANSITION_MODE_Tangent) {
Base::Vector2d Tangent(dirVec.x, dirVec.y);
EditCurve[1].ProjectToLine(EditCurve[2] - EditCurve[0], Tangent);
if (EditCurve[1] * Tangent < 0) {
EditCurve[1] = EditCurve[2];
suppressTransition = true;
}
else {
EditCurve[1] = EditCurve[0] + EditCurve[1];
}
}
else if (TransitionMode == TRANSITION_MODE_Perpendicular_L
|| TransitionMode == TRANSITION_MODE_Perpendicular_R) {
Base::Vector2d Perpendicular(-dirVec.y, dirVec.x);
EditCurve[1].ProjectToLine(EditCurve[2] - EditCurve[0], Perpendicular);
EditCurve[1] = EditCurve[0] + EditCurve[1];
}
drawEdit(EditCurve);
float length = (EditCurve[1] - EditCurve[0]).Length();
float angle = (EditCurve[1] - EditCurve[0]).GetAngle(Base::Vector2d(1.f, 0.f));
if (showCursorCoords()) {
SbString text;
std::string lengthString = lengthToDisplayFormat(length, 1);
std::string angleString = angleToDisplayFormat(angle * 180.0 / pi, 1);
text.sprintf(" (%s, %s)", lengthString.c_str(), angleString.c_str());
setPositionText(EditCurve[1], text);
}
if (TransitionMode == TRANSITION_MODE_Free) {
seekAndRenderAutoConstraint(sugConstr2, onSketchPos, onSketchPos - EditCurve[0]);
}
}
else if (SegmentMode == SEGMENT_MODE_Arc) {
if (QApplication::keyboardModifiers() == Qt::ControlModifier) {
SnapMode = SNAP_MODE_45Degree;
}
else {
SnapMode = SNAP_MODE_Free;
}
Base::Vector2d Tangent;
if (TransitionMode == TRANSITION_MODE_Tangent) {
Tangent = Base::Vector2d(dirVec.x, dirVec.y);
}
else if (TransitionMode == TRANSITION_MODE_Perpendicular_L) {
Tangent = Base::Vector2d(-dirVec.y, dirVec.x);
}
else if (TransitionMode == TRANSITION_MODE_Perpendicular_R) {
Tangent = Base::Vector2d(dirVec.y, -dirVec.x);
}
double theta = Tangent.GetAngle(onSketchPos - EditCurve[0]);
arcRadius = (onSketchPos - EditCurve[0]).Length() / (2.0 * sin(theta));
// At this point we need a unit normal vector pointing towards
// the center of the arc we are drawing. Derivation of the formula
// used here can be found at
// http://people.richland.edu/james/lecture/m116/matrices/area.html
double x1 = EditCurve[0].x;
double y1 = EditCurve[0].y;
double x2 = x1 + Tangent.x;
double y2 = y1 + Tangent.y;
double x3 = onSketchPos.x;
double y3 = onSketchPos.y;
if ((x2 * y3 - x3 * y2) - (x1 * y3 - x3 * y1) + (x1 * y2 - x2 * y1) > 0) {
arcRadius *= -1;
}
if (boost::math::isnan(arcRadius) || boost::math::isinf(arcRadius)) {
arcRadius = 0.f;
}
CenterPoint = EditCurve[0]
+ Base::Vector2d(arcRadius * Tangent.y, -arcRadius * Tangent.x);
double rx = EditCurve[0].x - CenterPoint.x;
double ry = EditCurve[0].y - CenterPoint.y;
startAngle = atan2(ry, rx);
double rxe = onSketchPos.x - CenterPoint.x;
double rye = onSketchPos.y - CenterPoint.y;
double arcAngle = atan2(-rxe * ry + rye * rx, rxe * rx + rye * ry);
if (boost::math::isnan(arcAngle) || boost::math::isinf(arcAngle)) {
arcAngle = 0.f;
}
if (arcRadius >= 0 && arcAngle > 0) {
arcAngle -= 2 * pi;
}
if (arcRadius < 0 && arcAngle < 0) {
arcAngle += 2 * pi;
}
if (SnapMode == SNAP_MODE_45Degree) {
arcAngle = round(arcAngle / (pi / 4)) * pi / 4;
}
endAngle = startAngle + arcAngle;
for (int i = 1; i <= 29; i++) {
double angle = i * arcAngle / 29.0;
double dx = rx * cos(angle) - ry * sin(angle);
double dy = rx * sin(angle) + ry * cos(angle);
EditCurve[i] = Base::Vector2d(CenterPoint.x + dx, CenterPoint.y + dy);
}
EditCurve[30] = CenterPoint;
EditCurve[31] = EditCurve[0];
drawEdit(EditCurve);
if (showCursorCoords()) {
SbString text;
std::string radiusString = lengthToDisplayFormat(std::abs(arcRadius), 1);
std::string angleString = angleToDisplayFormat(arcAngle * 180.0 / pi, 1);
text.sprintf(" (R%s, %s)", radiusString.c_str(), angleString.c_str());
setPositionText(onSketchPos, text);
}
seekAndRenderAutoConstraint(sugConstr2, onSketchPos, Base::Vector2d(0.f, 0.f));
}
}
}
bool pressButton(Base::Vector2d onSketchPos) override
{
if (Mode == STATUS_SEEK_First) {
EditCurve[0] = onSketchPos; // this may be overwritten if previousCurve is found
virtualsugConstr1 = sugConstr1; // store original autoconstraints.
// here we check if there is a preselected point and
// we set up a transition from the neighbouring segment.
// (peviousCurve, previousPosId, dirVec, TransitionMode)
for (unsigned int i = 0; i < sugConstr1.size(); i++) {
if (sugConstr1[i].Type == Sketcher::Coincident) {
const Part::Geometry* geom = sketchgui->getSketchObject()->getGeometry(
sugConstr1[i].GeoId
);
if ((geom->is<Part::GeomLineSegment>() || geom->is<Part::GeomArcOfCircle>())
&& (sugConstr1[i].PosId == Sketcher::PointPos::start
|| sugConstr1[i].PosId == Sketcher::PointPos::end)) {
previousCurve = sugConstr1[i].GeoId;
previousPosId = sugConstr1[i].PosId;
updateTransitionData(
previousCurve,
previousPosId
); // -> dirVec, EditCurve[0]
if (geom->is<Part::GeomArcOfCircle>()) {
TransitionMode = TRANSITION_MODE_Tangent;
SnapMode = SNAP_MODE_Free;
}
sugConstr1.erase(sugConstr1.begin() + i); // actually we should clear the
// vector completely
break;
}
}
}
// remember our first point (even if we are doing a transition from a previous curve)
firstCurve = getHighestCurveIndex() + 1;
firstPosId = Sketcher::PointPos::start;
if (SegmentMode == SEGMENT_MODE_Line) {
EditCurve.resize(TransitionMode == TRANSITION_MODE_Free ? 2 : 3);
}
else if (SegmentMode == SEGMENT_MODE_Arc) {
EditCurve.resize(32);
}
Mode = STATUS_SEEK_Second;
}
else if (Mode == STATUS_SEEK_Second) {
// exit on clicking exactly at the same position (e.g. double click)
if (onSketchPos == EditCurve[0]) {
unsetCursor();
resetPositionText();
EditCurve.clear();
drawEdit(EditCurve);
ParameterGrp::handle hGrp = App::GetApplication().GetParameterGroupByPath(
"User parameter:BaseApp/Preferences/Mod/Sketcher"
);
bool continuousMode = hGrp->GetBool("ContinuousCreationMode", true);
if (continuousMode) {
// This code enables the continuous creation mode.
Mode = STATUS_SEEK_First;
SegmentMode = SEGMENT_MODE_Line;
TransitionMode = TRANSITION_MODE_Free;
SnapMode = SNAP_MODE_Free;
suppressTransition = false;
firstCurve = -1;
previousCurve = -1;
firstPosId = Sketcher::PointPos::none;
previousPosId = Sketcher::PointPos::none;
EditCurve.clear();
drawEdit(EditCurve);
EditCurve.resize(2);
applyCursor();
/* this is ok not to call to purgeHandler
* in continuous creation mode because the
* handler is destroyed by the quit() method on pressing the
* right button of the mouse */
return true;
}
else {
sketchgui->purgeHandler(); // no code after this line, Handler get deleted in
// ViewProvider
return true;
}
}
Mode = STATUS_Do;
if (getPreselectPoint() != -1 && firstPosId != Sketcher::PointPos::none) {
int GeoId;
Sketcher::PointPos PosId;
sketchgui->getSketchObject()->getGeoVertexIndex(getPreselectPoint(), GeoId, PosId);
if (sketchgui->getSketchObject()
->arePointsCoincident(GeoId, PosId, firstCurve, firstPosId)) {
Mode = STATUS_Close;
}
}
else if (getPreselectCross() == 0 && firstPosId != Sketcher::PointPos::none) {
// close line started at root point
if (sketchgui->getSketchObject()
->arePointsCoincident(-1, Sketcher::PointPos::start, firstCurve, firstPosId)) {
Mode = STATUS_Close;
}
}
}
updateHint();
return true;
}
bool releaseButton(Base::Vector2d onSketchPos) override
{
if (Mode == STATUS_Do || Mode == STATUS_Close) {
bool addedGeometry = true;
if (SegmentMode == SEGMENT_MODE_Line) {
// issue the geometry
try {
// open the transaction
Gui::Command::openCommand(
QT_TRANSLATE_NOOP("Command", "Add line to sketch polyline")
);
Gui::cmdAppObjectArgs(
sketchgui->getObject(),
"addGeometry(Part.LineSegment(App.Vector(%f,%f,0),App.Vector(%f,%f,0)),%s)",
EditCurve[0].x,
EditCurve[0].y,
EditCurve[1].x,
EditCurve[1].y,
constructionModeAsBooleanText()
);
}
catch (const Base::Exception&) {
addedGeometry = false;
Gui::NotifyError(
sketchgui,
QT_TRANSLATE_NOOP("Notifications", "Error"),
QT_TRANSLATE_NOOP("Notifications", "Failed to add line")
);
Gui::Command::abortCommand();
}
firstsegment = false;
}
else if (SegmentMode == SEGMENT_MODE_Arc) { // We're dealing with an Arc
if (!boost::math::isnormal(arcRadius)) {
Mode = STATUS_SEEK_Second;
return true;
}
try {
Gui::Command::openCommand(
QT_TRANSLATE_NOOP("Command", "Add arc to sketch polyline")
);
Gui::cmdAppObjectArgs(
sketchgui->getObject(),
"addGeometry(Part.ArcOfCircle"
"(Part.Circle(App.Vector(%f,%f,0),App.Vector(0,0,1),%f),%f,%f),%s)",
CenterPoint.x,
CenterPoint.y,
std::abs(arcRadius),
std::min(startAngle, endAngle),
std::max(startAngle, endAngle),
constructionModeAsBooleanText()
);
}
catch (const Base::Exception&) {
addedGeometry = false;
Gui::NotifyError(
sketchgui,
QT_TRANSLATE_NOOP("Notifications", "Error"),
QT_TRANSLATE_NOOP("Notifications", "Failed to add arc")
);
Gui::Command::abortCommand();
}
firstsegment = false;
}
int lastCurve = getHighestCurveIndex();
// issue the constraint
if (addedGeometry && (previousPosId != Sketcher::PointPos::none)) {
Sketcher::PointPos lastStartPosId = (SegmentMode == SEGMENT_MODE_Arc
&& startAngle > endAngle)
? Sketcher::PointPos::end
: Sketcher::PointPos::start;
Sketcher::PointPos lastEndPosId = (SegmentMode == SEGMENT_MODE_Arc
&& startAngle > endAngle)
? Sketcher::PointPos::start
: Sketcher::PointPos::end;
// in case of a tangency constraint, the coincident constraint is redundant
std::string constrType = "Coincident";
if (!suppressTransition && previousCurve != -1) {
if (TransitionMode == TRANSITION_MODE_Tangent) {
constrType = "Tangent";
}
else if (TransitionMode == TRANSITION_MODE_Perpendicular_L
|| TransitionMode == TRANSITION_MODE_Perpendicular_R) {
constrType = "Perpendicular";
}
}
Gui::cmdAppObjectArgs(
sketchgui->getObject(),
"addConstraint(Sketcher.Constraint('%s',%i,%i,%i,%i)) ",
constrType.c_str(),
previousCurve,
static_cast<int>(previousPosId),
lastCurve,
static_cast<int>(lastStartPosId)
);
if (SnapMode == SNAP_MODE_45Degree && Mode != STATUS_Close) {
// -360, -315, -270, -225, -180, -135, -90, -45, 0, 45, 90, 135, 180, 225,
// 270, 315, 360
// N/A, a, perp, a, par, a,perp, a,N/A, a,perp, a, par, a,perp,
// a, N/A
// #3974: if in radians, the printf %f defaults to six decimals, which leads to
// loss of precision
double arcAngle = abs(
round((endAngle - startAngle) / (std::numbers::pi / 4)) * 45
); // in degrees
Gui::cmdAppObjectArgs(
sketchgui->getObject(),
"addConstraint(Sketcher.Constraint('Angle',%i,App.Units."
"Quantity('%f deg'))) ",
lastCurve,
arcAngle
);
}
if (Mode == STATUS_Close) {
// close the loop by constrain to the first curve point
Gui::cmdAppObjectArgs(
sketchgui->getObject(),
"addConstraint(Sketcher.Constraint('Coincident',%i,%i,%i,%i)) ",
lastCurve,
static_cast<int>(lastEndPosId),
firstCurve,
static_cast<int>(firstPosId)
);
firstsegment = true;
}
Gui::Command::commitCommand();
tryAutoRecomputeIfNotSolve(sketchgui->getObject<Sketcher::SketchObject>());
}
ParameterGrp::handle hGrp = App::GetApplication().GetParameterGroupByPath(
"User parameter:BaseApp/Preferences/Mod/Sketcher"
);
bool avoidredundant = sketchgui->AvoidRedundant.getValue()
&& sketchgui->Autoconstraints.getValue();
if (Mode == STATUS_Close) {
if (avoidredundant) {
if (SegmentMode == SEGMENT_MODE_Line) { // avoid redundant constraints.
if (sugConstr1.size() > 0) {
removeRedundantHorizontalVertical(
sketchgui->getObject<Sketcher::SketchObject>(),
sugConstr1,
sugConstr2
);
}
else {
removeRedundantHorizontalVertical(
sketchgui->getObject<Sketcher::SketchObject>(),
virtualsugConstr1,
sugConstr2
);
}
}
}
if (!sugConstr2.empty()) {
// exclude any coincidence constraints
std::vector<AutoConstraint> sugConstr;
for (unsigned int i = 0; i < sugConstr2.size(); i++) {
if (sugConstr2[i].Type != Sketcher::Coincident) {
sugConstr.push_back(sugConstr2[i]);
}
}
createAutoConstraints(sugConstr, getHighestCurveIndex(), Sketcher::PointPos::end);
sugConstr2.clear();
}
tryAutoRecomputeIfNotSolve(sketchgui->getObject<Sketcher::SketchObject>());
unsetCursor();
resetPositionText();
EditCurve.clear();
drawEdit(EditCurve);
ParameterGrp::handle hGrp = App::GetApplication().GetParameterGroupByPath(
"User parameter:BaseApp/Preferences/Mod/Sketcher"
);
bool continuousMode = hGrp->GetBool("ContinuousCreationMode", true);
if (continuousMode) {
// This code enables the continuous creation mode.
Mode = STATUS_SEEK_First;
SegmentMode = SEGMENT_MODE_Line;
TransitionMode = TRANSITION_MODE_Free;
SnapMode = SNAP_MODE_Free;
suppressTransition = false;
firstCurve = -1;
previousCurve = -1;
firstPosId = Sketcher::PointPos::none;
previousPosId = Sketcher::PointPos::none;
EditCurve.clear();
drawEdit(EditCurve);
EditCurve.resize(2);
applyCursor();
/* this is ok not to call to purgeHandler
* in continuous creation mode because the
* handler is destroyed by the quit() method on pressing the
* right button of the mouse */
}
else {
sketchgui->purgeHandler(); // no code after this line, Handler get deleted in
// ViewProvider
}
}
else {
Gui::Command::commitCommand();
// Add auto constraints
if (!sugConstr1.empty()) { // this is relevant only to the very first point
createAutoConstraints(sugConstr1, getHighestCurveIndex(), Sketcher::PointPos::start);
sugConstr1.clear();
}
if (avoidredundant) {
if (SegmentMode == SEGMENT_MODE_Line) { // avoid redundant constraints.
if (sugConstr1.size() > 0) {
removeRedundantHorizontalVertical(
sketchgui->getObject<Sketcher::SketchObject>(),
sugConstr1,
sugConstr2
);
}
else {
removeRedundantHorizontalVertical(
sketchgui->getObject<Sketcher::SketchObject>(),
virtualsugConstr1,
sugConstr2
);
}
}
}
virtualsugConstr1 = sugConstr2; // these are the initial constraints for the next
// iteration.
if (!sugConstr2.empty()) {
createAutoConstraints(
sugConstr2,
getHighestCurveIndex(),
(SegmentMode == SEGMENT_MODE_Arc && startAngle > endAngle)
? Sketcher::PointPos::start
: Sketcher::PointPos::end
);
sugConstr2.clear();
}
tryAutoRecomputeIfNotSolve(sketchgui->getObject<Sketcher::SketchObject>());
// remember the vertex for the next rounds constraint..
previousCurve = getHighestCurveIndex();
previousPosId = (SegmentMode == SEGMENT_MODE_Arc && startAngle > endAngle)
? Sketcher::PointPos::start
: Sketcher::PointPos::end; // cw arcs are rendered in reverse
// setup for the next line segment
// calculate dirVec and EditCurve[0]
updateTransitionData(previousCurve, previousPosId);
applyCursor();
Mode = STATUS_SEEK_Second;
if (SegmentMode == SEGMENT_MODE_Arc) {
TransitionMode = TRANSITION_MODE_Tangent;
EditCurve.resize(3);
EditCurve[2] = EditCurve[0];
}
else {
TransitionMode = TRANSITION_MODE_Free;
EditCurve.resize(2);
}
SegmentMode = SEGMENT_MODE_Line;
SnapMode = SNAP_MODE_Free;
EditCurve[1] = EditCurve[0];
auto snapHandle = std::make_unique<SnapManager::SnapHandle>(nullptr, onSketchPos);
mouseMove(*snapHandle); // trigger an update of EditCurve
}
}
updateHint();
return true;
}
void quit() override
{
// We must see if we need to create a B-spline before cancelling everything
// and now just like any other Handler,
ParameterGrp::handle hGrp = App::GetApplication().GetParameterGroupByPath(
"User parameter:BaseApp/Preferences/Mod/Sketcher"
);
bool continuousMode = hGrp->GetBool("ContinuousCreationMode", true);
if (firstsegment) {
// user when right-clicking with no segment in really wants to exit
DrawSketchHandler::quit();
}
else {
if (!continuousMode) {
DrawSketchHandler::quit();
}
else {
// This code disregards existing data and enables the continuous creation mode.
Mode = STATUS_SEEK_First;
SegmentMode = SEGMENT_MODE_Line;
TransitionMode = TRANSITION_MODE_Free;
SnapMode = SNAP_MODE_Free;
suppressTransition = false;
firstCurve = -1;
previousCurve = -1;
firstPosId = Sketcher::PointPos::none;
previousPosId = Sketcher::PointPos::none;
firstsegment = true;
EditCurve.clear();
drawEdit(EditCurve);
EditCurve.resize(2);
applyCursor();
}
}
}
private:
QString getCrosshairCursorSVGName() const override
{
return QStringLiteral("Sketcher_Pointer_Create_Lineset");
}
std::list<Gui::InputHint> getToolHints() const override
{
using enum Gui::InputHint::UserInput;
// clang-format off
return Gui::lookupHints<SELECT_MODE>(
Mode,
{
{.state = STATUS_SEEK_First,
.hints =
{
{tr("%1 pick first point"), {MouseLeft}},
}},
{.state = STATUS_SEEK_Second,
.hints =
{
{tr("%1 pick next point"), {MouseLeft}},
{tr("%1 finish"), {MouseRight}},
{tr("%1 switch mode"), {KeyM}},
}},
});
// clang-format on
}
protected:
SELECT_MODE Mode;
SEGMENT_MODE SegmentMode;
TRANSITION_MODE TransitionMode;
SNAP_MODE SnapMode;
bool suppressTransition;
std::vector<Base::Vector2d> EditCurve;
int firstCurve;
int previousCurve;
Sketcher::PointPos firstPosId;
Sketcher::PointPos previousPosId;
// the latter stores those constraints that a first point would have been given in absence of
// the transition mechanism
std::vector<AutoConstraint> sugConstr1, sugConstr2, virtualsugConstr1;
Base::Vector2d CenterPoint;
Base::Vector3d dirVec;
double startAngle, endAngle, arcRadius;
bool firstsegment;
void updateTransitionData(int GeoId, Sketcher::PointPos PosId)
{
// Use updated startPoint/endPoint as autoconstraints can modify the position
const Part::Geometry* geom = sketchgui->getSketchObject()->getGeometry(GeoId);
if (geom->is<Part::GeomLineSegment>()) {
const Part::GeomLineSegment* lineSeg = static_cast<const Part::GeomLineSegment*>(geom);
dirVec.Set(
lineSeg->getEndPoint().x - lineSeg->getStartPoint().x,
lineSeg->getEndPoint().y - lineSeg->getStartPoint().y,
0.f
);
if (PosId == Sketcher::PointPos::start) {
dirVec *= -1;
EditCurve[0] = Base::Vector2d(lineSeg->getStartPoint().x, lineSeg->getStartPoint().y);
}
else {
EditCurve[0] = Base::Vector2d(lineSeg->getEndPoint().x, lineSeg->getEndPoint().y);
}
}
else if (geom->is<Part::GeomArcOfCircle>()) {
const Part::GeomArcOfCircle* arcSeg = static_cast<const Part::GeomArcOfCircle*>(geom);
if (PosId == Sketcher::PointPos::start) {
EditCurve[0] = Base::Vector2d(
arcSeg->getStartPoint(/*emulateCCW=*/true).x,
arcSeg->getStartPoint(/*emulateCCW=*/true).y
);
dirVec = Base::Vector3d(0.f, 0.f, -1.0)
% (arcSeg->getStartPoint(/*emulateCCW=*/true) - arcSeg->getCenter());
}
else {
EditCurve[0] = Base::Vector2d(
arcSeg->getEndPoint(/*emulateCCW=*/true).x,
arcSeg->getEndPoint(/*emulateCCW=*/true).y
);
dirVec = Base::Vector3d(0.f, 0.f, 1.0)
% (arcSeg->getEndPoint(/*emulateCCW=*/true) - arcSeg->getCenter());
}
}
dirVec.Normalize();
}
};
} // namespace SketcherGui
#endif // SKETCHERGUI_DrawSketchHandlerLineSet_H
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