Basic working ViewImage

2016-11-06 11:54:07 -05:00
parent 4f511f663a
commit 5bfdad804a
21 changed files with 1257 additions and 1 deletions
--- a/src/Mod/TechDraw/Gui/QGIViewImage.cpp
+++ b/src/Mod/TechDraw/Gui/QGIViewImage.cpp
@@ -0,0 +1,144 @@
+/***************************************************************************
+ *   Copyright (c) 2016 WandererFan   (wandererfan@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                                *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "PreCompiled.h"
+#ifndef _PreComp_
+#include <cmath>
+#include <QGraphicsItem>
+#include <QGraphicsScene>
+#include <QGraphicsSceneHoverEvent>
+#include <QMenu>
+#include <QMouseEvent>
+#include <QString>
+#include <sstream>
+#include <QRectF>
+#endif
+
+//#include <qmath.h>
+
+#include <App/Application.h>
+#include <App/Material.h>
+#include <Base/Console.h>
+#include <Base/Parameter.h>
+
+#include <Mod/TechDraw/App/DrawViewImage.h>
+
+#include "QGCustomImage.h"
+#include "QGCustomClip.h"
+#include "QGIViewImage.h"
+
+using namespace TechDrawGui;
+
+QGIViewImage::QGIViewImage()
+{
+    setHandlesChildEvents(false);
+    setFlag(QGraphicsItem::ItemClipsChildrenToShape, false);
+    setCacheMode(QGraphicsItem::NoCache);
+    setAcceptHoverEvents(true);
+    setFlag(QGraphicsItem::ItemIsMovable, true);
+    setFlag(QGraphicsItem::ItemIsSelectable, true);
+    setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);
+
+    m_cliparea = new QGCustomClip();
+    addToGroup(m_cliparea);
+    m_cliparea->setPos(0.,0.);
+    m_cliparea->setRect(0.,0.,5.,5.);
+
+    m_imageItem = new QGCustomImage();
+    m_cliparea->addToGroup(m_imageItem);
+    m_imageItem->setPos(0.,0.);
+}
+
+QGIViewImage::~QGIViewImage()
+{
+    // m_imageItem belongs to this group and will be deleted by Qt
+}
+
+QVariant QGIViewImage::itemChange(GraphicsItemChange change, const QVariant &value)
+{
+
+    return QGIView::itemChange(change, value);
+}
+
+void QGIViewImage::setViewImageFeature(TechDraw::DrawViewImage *obj)
+{
+    setViewFeature(static_cast<TechDraw::DrawView *>(obj));
+}
+
+void QGIViewImage::updateView(bool update)
+{
+    auto viewImage( dynamic_cast<TechDraw::DrawViewImage *>(getViewObject()) );
+    if( viewImage == nullptr ) {
+        return;
+    }
+
+    if (update ||
+        viewImage->isTouched() ||
+        viewImage->Width.isTouched() ||
+        viewImage->Height.isTouched() ||
+        viewImage->ImageFile.isTouched()) {
+        draw();
+    }
+
+    if (viewImage->Scale.isTouched()) {
+        draw();
+    }
+
+    QGIView::updateView(update);
+}
+
+void QGIViewImage::draw()
+{
+    if (!isVisible()) {
+        return;
+    }
+
+    auto viewImage( dynamic_cast<TechDraw::DrawViewImage*>(getViewObject()) );
+    QRectF newRect(0.0,0.0,viewImage->Width.getValue(),viewImage->Height.getValue());
+    m_cliparea->setRect(newRect.adjusted(-1,-1,1,1));
+
+    drawImage();
+    if (borderVisible) {
+        drawBorder();
+    }
+}
+
+void QGIViewImage::drawImage()
+{
+    auto viewImage( dynamic_cast<TechDraw::DrawViewImage *>(getViewObject()) );
+    if( viewImage == nullptr ) {
+        return;
+    }
+
+    if (!viewImage->ImageFile.isEmpty()) {
+        QString fileSpec = QString::fromUtf8(viewImage->ImageFile.getValue(),strlen(viewImage->ImageFile.getValue()));
+        m_imageItem->load(fileSpec);
+        m_imageItem->setScale(viewImage->Scale.getValue());
+        QRectF br = m_cliparea->rect();
+        double midX = br.width()/2.0;
+        double midY = br.height()/2.0;
+        m_imageItem->centerAt(midX,midY);
+        m_imageItem->show();
+    }
+}
+
+