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actions/rs_actiondrawlinepolygon.cpp

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+/****************************************************************************
+**
+** This file is part of the LibreCAD project, a 2D CAD program
+**
+** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
+** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
+**
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file gpl-2.0.txt included in the
+** packaging of this file.
+**
+** This program 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 this program; if not, write to the Free Software
+** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+**
+** This copyright notice MUST APPEAR in all copies of the script!
+**
+**********************************************************************/
+
+#include "rs_actiondrawlinepolygon.h"
+
+#include <QAction>
+#include <QMouseEvent>
+#include "rs_dialogfactory.h"
+#include "rs_graphicview.h"
+#include "rs_commandevent.h"
+#include "rs_creation.h"
+#include "rs_coordinateevent.h"
+#include "rs_preview.h"
+#include "rs_debug.h"
+
+struct RS_ActionDrawLinePolygonCenCor::Points {
+	/** Center of polygon */
+	RS_Vector center;
+	/** Edge */
+	RS_Vector corner;
+};
+
+RS_ActionDrawLinePolygonCenCor::RS_ActionDrawLinePolygonCenCor(
+    RS_EntityContainer& container,
+    RS_GraphicView& graphicView)
+		:RS_PreviewActionInterface("Draw Polygons (Center,Corner)", container, graphicView)
+		, pPoints(new Points{})
+		,number(3)
+		,lastStatus(SetCenter)
+{
+	actionType=RS2::ActionDrawLinePolygonCenCor;
+}
+
+RS_ActionDrawLinePolygonCenCor::~RS_ActionDrawLinePolygonCenCor() = default;
+
+void RS_ActionDrawLinePolygonCenCor::trigger() {
+    RS_PreviewActionInterface::trigger();
+
+    deletePreview();
+
+    RS_Creation creation(container, graphicView);
+	bool ok = creation.createPolygon(pPoints->center, pPoints->corner, number);
+
+    if (!ok) {
+        RS_DEBUG->print("RS_ActionDrawLinePolygon::trigger:"
+                        " No polygon added\n");
+    }
+}
+
+
+
+void RS_ActionDrawLinePolygonCenCor::mouseMoveEvent(QMouseEvent* e) {
+    RS_DEBUG->print("RS_ActionDrawLinePolygon::mouseMoveEvent begin");
+
+    RS_Vector mouse = snapPoint(e);
+
+    switch (getStatus()) {
+    case SetCenter:
+        break;
+
+    case SetCorner:
+		if (pPoints->center.valid) {
+			pPoints->corner = mouse;
+            deletePreview();
+
+			RS_Creation creation(preview.get(), nullptr, false);
+			creation.createPolygon(pPoints->center, pPoints->corner, number);
+
+            drawPreview();
+        }
+        break;
+
+    default:
+        break;
+    }
+}
+
+
+
+void RS_ActionDrawLinePolygonCenCor::mouseReleaseEvent(QMouseEvent* e) {
+    if (e->button()==Qt::LeftButton) {
+        RS_CoordinateEvent ce(snapPoint(e));
+        coordinateEvent(&ce);
+    } else if (e->button()==Qt::RightButton) {
+        deletePreview();
+        init(getStatus()-1);
+    }
+}
+
+void RS_ActionDrawLinePolygonCenCor::coordinateEvent(RS_CoordinateEvent* e) {
+	if (!e)  return;
+
+    RS_Vector mouse = e->getCoordinate();
+
+    switch (getStatus()) {
+    case SetCenter:
+		pPoints->center = mouse;
+        setStatus(SetCorner);
+        graphicView->moveRelativeZero(mouse);
+        break;
+
+    case SetCorner:
+		pPoints->corner = mouse;
+        trigger();
+        break;
+
+    default:
+        break;
+    }
+}
+
+void RS_ActionDrawLinePolygonCenCor::updateMouseButtonHints() {
+	switch (getStatus()) {
+	case SetCenter:
+		RS_DIALOGFACTORY->updateMouseWidget(tr("Specify center"),
+											"");
+		break;
+
+	case SetCorner:
+		RS_DIALOGFACTORY->updateMouseWidget(tr("Specify a corner"), "");
+		break;
+
+	case SetNumber:
+		RS_DIALOGFACTORY->updateMouseWidget(tr("Enter number:"), "");
+		break;
+
+	default:
+		RS_DIALOGFACTORY->updateMouseWidget();
+		break;
+	}
+}
+
+
+
+void RS_ActionDrawLinePolygonCenCor::showOptions() {
+    RS_ActionInterface::showOptions();
+
+	RS_DIALOGFACTORY->requestOptions(this, true);
+}
+
+void RS_ActionDrawLinePolygonCenCor::hideOptions() {
+    RS_ActionInterface::hideOptions();
+
+	RS_DIALOGFACTORY->requestOptions(this, false);
+}
+
+void RS_ActionDrawLinePolygonCenCor::commandEvent(RS_CommandEvent* e) {
+    QString c = e->getCommand().toLower();
+
+	if (checkCommand("help", c)) {
+		RS_DIALOGFACTORY->commandMessage(msgAvailableCommands()
+										 + getAvailableCommands().join(", "));
+        return;
+    }
+
+    switch (getStatus()) {
+    case SetCenter:
+    case SetCorner:
+        if (checkCommand("number", c)) {
+            deletePreview();
+            lastStatus = (Status)getStatus();
+            setStatus(SetNumber);
+        }
+        break;
+
+    case SetNumber: {
+            bool ok;
+            int n = c.toInt(&ok);
+            if (ok) {
+                e->accept();
+                if (n>0 && n<10000) {
+                    number = n;
+				} else
+					RS_DIALOGFACTORY->commandMessage(tr("Not a valid number. "
+														"Try 1..9999"));
+			} else
+				RS_DIALOGFACTORY->commandMessage(tr("Not a valid expression"));
+			RS_DIALOGFACTORY->requestOptions(this, true, true);
+            setStatus(lastStatus);
+        }
+        break;
+
+    default:
+        break;
+    }
+}
+
+
+
+QStringList RS_ActionDrawLinePolygonCenCor::getAvailableCommands() {
+    QStringList cmd;
+
+    switch (getStatus()) {
+    case SetCenter:
+    case SetCorner:
+        cmd += command("number");
+        break;
+    default:
+        break;
+    }
+
+    return cmd;
+}
+
+
+
+void RS_ActionDrawLinePolygonCenCor::updateMouseCursor() {
+    graphicView->setMouseCursor(RS2::CadCursor);
+}
+
+// EOF