summaryrefslogtreecommitdiffstats
path: root/drawinglayer/source/primitive2d/pagepreviewprimitive2d.cxx
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--drawinglayer/source/primitive2d/pagepreviewprimitive2d.cxx150
1 files changed, 150 insertions, 0 deletions
diff --git a/drawinglayer/source/primitive2d/pagepreviewprimitive2d.cxx b/drawinglayer/source/primitive2d/pagepreviewprimitive2d.cxx
new file mode 100644
index 000000000..7aa1a4405
--- /dev/null
+++ b/drawinglayer/source/primitive2d/pagepreviewprimitive2d.cxx
@@ -0,0 +1,150 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <drawinglayer/primitive2d/pagepreviewprimitive2d.hxx>
+#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
+#include <drawinglayer/primitive2d/maskprimitive2d.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/polygon/b2dpolygon.hxx>
+#include <drawinglayer/primitive2d/transformprimitive2d.hxx>
+#include <basegfx/matrix/b2dhommatrixtools.hxx>
+
+
+using namespace com::sun::star;
+
+
+namespace drawinglayer::primitive2d
+{
+ void PagePreviewPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const
+ {
+ Primitive2DContainer aContent(getPageContent());
+
+ if(!(!aContent.empty()
+ && basegfx::fTools::more(getContentWidth(), 0.0)
+ && basegfx::fTools::more(getContentHeight(), 0.0)))
+ return;
+
+ // the decomposed matrix will be needed
+ basegfx::B2DVector aScale, aTranslate;
+ double fRotate, fShearX;
+ getTransform().decompose(aScale, aTranslate, fRotate, fShearX);
+
+ if(!(basegfx::fTools::more(aScale.getX(), 0.0) && basegfx::fTools::more(aScale.getY(), 0.0)))
+ return;
+
+ // check if content overlaps with target size and needs to be embedded with a
+ // clipping primitive
+ const basegfx::B2DRange aRealContentRange(aContent.getB2DRange(rViewInformation));
+ const basegfx::B2DRange aAllowedContentRange(0.0, 0.0, getContentWidth(), getContentHeight());
+
+ if(!aAllowedContentRange.isInside(aRealContentRange))
+ {
+ const Primitive2DReference xReferenceA(
+ new MaskPrimitive2D(
+ basegfx::B2DPolyPolygon(
+ basegfx::utils::createPolygonFromRect(aAllowedContentRange)), std::move(aContent)));
+ aContent = Primitive2DContainer { xReferenceA };
+ }
+
+ // create a mapping from content to object.
+ basegfx::B2DHomMatrix aPageTrans;
+
+ // #i101075# when keeping the aspect ratio is wanted, it is necessary to calculate
+ // an equidistant scaling in X and Y and a corresponding translation to
+ // center the output. Calculate needed scale factors
+ const double fScaleX(aScale.getX() / getContentWidth());
+ const double fScaleY(aScale.getY() / getContentHeight());
+
+ // to keep the aspect, use the smaller scale and adapt missing size by translation
+ if(fScaleX < fScaleY)
+ {
+ // height needs to be adapted
+ const double fNeededHeight(aScale.getY() / fScaleX);
+ const double fSpaceToAdd(fNeededHeight - getContentHeight());
+
+ aPageTrans.translate(0.0, fSpaceToAdd * 0.5);
+ aPageTrans.scale(fScaleX, aScale.getY() / fNeededHeight);
+ }
+ else
+ {
+ // width needs to be adapted
+ const double fNeededWidth(aScale.getX() / fScaleY);
+ const double fSpaceToAdd(fNeededWidth - getContentWidth());
+
+ aPageTrans.translate(fSpaceToAdd * 0.5, 0.0);
+ aPageTrans.scale(aScale.getX() / fNeededWidth, fScaleY);
+ }
+
+ // add the missing object transformation aspects
+ const basegfx::B2DHomMatrix aCombined(basegfx::utils::createShearXRotateTranslateB2DHomMatrix(
+ fShearX, fRotate, aTranslate.getX(), aTranslate.getY()));
+ aPageTrans = aCombined * aPageTrans;
+
+ // embed in necessary transformation to map from SdrPage to SdrPageObject
+ rContainer.push_back(new TransformPrimitive2D(aPageTrans, std::move(aContent)));
+ }
+
+ PagePreviewPrimitive2D::PagePreviewPrimitive2D(
+ const css::uno::Reference< css::drawing::XDrawPage >& rxDrawPage,
+ const basegfx::B2DHomMatrix& rTransform,
+ double fContentWidth,
+ double fContentHeight,
+ Primitive2DContainer&& rPageContent)
+ : mxDrawPage(rxDrawPage),
+ maPageContent(std::move(rPageContent)),
+ maTransform(rTransform),
+ mfContentWidth(fContentWidth),
+ mfContentHeight(fContentHeight)
+ {
+ }
+
+ bool PagePreviewPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
+ {
+ if(BasePrimitive2D::operator==(rPrimitive))
+ {
+ const PagePreviewPrimitive2D& rCompare = static_cast< const PagePreviewPrimitive2D& >(rPrimitive);
+
+ return (getXDrawPage() == rCompare.getXDrawPage()
+ && getPageContent() == rCompare.getPageContent()
+ && getTransform() == rCompare.getTransform()
+ && getContentWidth() == rCompare.getContentWidth()
+ && getContentHeight() == rCompare.getContentHeight());
+ }
+
+ return false;
+ }
+
+ basegfx::B2DRange PagePreviewPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation`*/) const
+ {
+ // nothing is allowed to stick out of a PagePreviewPrimitive, thus we
+ // can quickly deliver our range here
+ basegfx::B2DRange aRetval(0.0, 0.0, 1.0, 1.0);
+ aRetval.transform(getTransform());
+ return aRetval;
+ }
+
+ // provide unique ID
+ sal_uInt32 PagePreviewPrimitive2D::getPrimitive2DID() const
+ {
+ return PRIMITIVE2D_ID_PAGEPREVIEWPRIMITIVE2D;
+ }
+
+} // end of namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */