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+/* -*- 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 "PresenterCanvasHelper.hxx"
+
+#include "PresenterGeometryHelper.hxx"
+#include <com/sun/star/rendering/CompositeOperation.hpp>
+#include <osl/diagnose.h>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+
+namespace sdext::presenter {
+
+PresenterCanvasHelper::PresenterCanvasHelper()
+ : maDefaultViewState(
+ geometry::AffineMatrix2D(1,0,0, 0,1,0),
+ nullptr),
+ maDefaultRenderState(
+ geometry::AffineMatrix2D(1,0,0, 0,1,0),
+ nullptr,
+ Sequence<double>(4),
+ rendering::CompositeOperation::SOURCE)
+{
+}
+
+PresenterCanvasHelper::~PresenterCanvasHelper()
+{
+}
+
+void PresenterCanvasHelper::Paint (
+ const SharedBitmapDescriptor& rpBitmap,
+ const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
+ const css::awt::Rectangle& rRepaintBox,
+ const css::awt::Rectangle& rOuterBoundingBox,
+ const css::awt::Rectangle& rContentBoundingBox) const
+{
+ PaintRectangle(rpBitmap,rxCanvas,rRepaintBox,rOuterBoundingBox,rContentBoundingBox,
+ maDefaultViewState, maDefaultRenderState);
+}
+
+void PresenterCanvasHelper::PaintRectangle (
+ const SharedBitmapDescriptor& rpBitmap,
+ const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
+ const css::awt::Rectangle& rRepaintBox,
+ const css::awt::Rectangle& rOuterBoundingBox,
+ const css::awt::Rectangle& rContentBoundingBox,
+ const css::rendering::ViewState& rDefaultViewState,
+ const css::rendering::RenderState& rDefaultRenderState)
+{
+ if (!rpBitmap)
+ return;
+
+ if ( ! rxCanvas.is() || ! rxCanvas->getDevice().is())
+ return;
+
+ // Create a clip polypolygon that has the content box as hole.
+ ::std::vector<awt::Rectangle> aRectangles;
+ aRectangles.reserve(2);
+ aRectangles.push_back(
+ PresenterGeometryHelper::Intersection(rRepaintBox, rOuterBoundingBox));
+ if (rContentBoundingBox.Width > 0 && rContentBoundingBox.Height > 0)
+ aRectangles.push_back(
+ PresenterGeometryHelper::Intersection(rRepaintBox, rContentBoundingBox));
+ Reference<rendering::XPolyPolygon2D> xPolyPolygon (
+ PresenterGeometryHelper::CreatePolygon(
+ aRectangles,
+ rxCanvas->getDevice()));
+ if ( ! xPolyPolygon.is())
+ return;
+ xPolyPolygon->setFillRule(rendering::FillRule_EVEN_ODD);
+
+ if (rpBitmap->GetNormalBitmap().is())
+ {
+ if (rpBitmap->meHorizontalTexturingMode == PresenterBitmapDescriptor::Repeat
+ || rpBitmap->meVerticalTexturingMode == PresenterBitmapDescriptor::Repeat)
+ {
+ PaintTiledBitmap(
+ rpBitmap->GetNormalBitmap(),
+ rxCanvas,
+ rRepaintBox,
+ xPolyPolygon,
+ rContentBoundingBox,
+ rDefaultViewState,
+ rDefaultRenderState);
+ }
+ else
+ {
+ PaintBitmap(
+ rpBitmap->GetNormalBitmap(),
+ awt::Point(rOuterBoundingBox.X, rOuterBoundingBox.Y),
+ rxCanvas,
+ rRepaintBox,
+ xPolyPolygon,
+ rDefaultViewState,
+ rDefaultRenderState);
+ }
+ }
+ else
+ {
+ PaintColor(
+ rpBitmap->maReplacementColor,
+ rxCanvas,
+ rRepaintBox,
+ xPolyPolygon,
+ rDefaultViewState,
+ rDefaultRenderState);
+ }
+}
+
+void PresenterCanvasHelper::PaintTiledBitmap (
+ const css::uno::Reference<css::rendering::XBitmap>& rxTexture,
+ const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
+ const css::awt::Rectangle& rRepaintBox,
+ const css::uno::Reference<css::rendering::XPolyPolygon2D>& rxPolygon,
+ const css::awt::Rectangle& rHole,
+ const css::rendering::ViewState& rDefaultViewState,
+ const css::rendering::RenderState& rDefaultRenderState)
+{
+ if ( ! rxCanvas.is() || ! rxCanvas->getDevice().is())
+ return;
+
+ if ( ! rxTexture.is())
+ return;
+
+ if ( ! rxPolygon.is())
+ return;
+
+ rendering::ViewState aViewState (rDefaultViewState);
+ aViewState.Clip = rxPolygon;
+
+ // Create a local render state at which the location of the bitmap is
+ // set.
+ rendering::RenderState aRenderState (rDefaultRenderState);
+
+ // Tile the bitmap over the repaint box.
+ const geometry::IntegerSize2D aBitmapSize (rxTexture->getSize());
+ if( aBitmapSize.Width < 1 || aBitmapSize.Height < 1)
+ return;
+
+ const sal_Int32 nLeft = (rRepaintBox.X / aBitmapSize.Width) * aBitmapSize.Width;
+ const sal_Int32 nTop = (rRepaintBox.Y / aBitmapSize.Height) * aBitmapSize.Height;
+ const sal_Int32 nRight = ((rRepaintBox.X + rRepaintBox.Width - 1 + aBitmapSize.Width - 1)
+ / aBitmapSize.Width) * aBitmapSize.Width;
+ const sal_Int32 nBottom = ((rRepaintBox.Y + rRepaintBox.Height - 1 + aBitmapSize.Height - 1)
+ / aBitmapSize.Height) * aBitmapSize.Height;
+
+ for (sal_Int32 nY=nTop; nY<=nBottom; nY+=aBitmapSize.Height)
+ for (sal_Int32 nX=nLeft; nX<=nRight; nX+=aBitmapSize.Width)
+ {
+ if (PresenterGeometryHelper::IsInside(
+ awt::Rectangle(nX,nY,aBitmapSize.Width,aBitmapSize.Height),
+ rHole))
+ {
+ continue;
+ }
+ aRenderState.AffineTransform.m02 = nX;
+ aRenderState.AffineTransform.m12 = nY;
+ rxCanvas->drawBitmap(
+ rxTexture,
+ aViewState,
+ aRenderState);
+ }
+}
+
+void PresenterCanvasHelper::PaintBitmap (
+ const css::uno::Reference<css::rendering::XBitmap>& rxBitmap,
+ const awt::Point& rLocation,
+ const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
+ const css::awt::Rectangle& rRepaintBox,
+ const css::uno::Reference<css::rendering::XPolyPolygon2D>& rxPolygon,
+ const css::rendering::ViewState& rDefaultViewState,
+ const css::rendering::RenderState& rDefaultRenderState)
+{
+ if ( ! rxCanvas.is() || ! rxCanvas->getDevice().is())
+ return;
+
+ if ( ! rxBitmap.is())
+ return;
+
+ if ( ! rxPolygon.is())
+ return;
+
+ // Set the repaint box as clip rectangle at the view state.
+ rendering::ViewState aViewState (rDefaultViewState);
+ aViewState.Clip = PresenterGeometryHelper::CreatePolygon(rRepaintBox, rxCanvas->getDevice());
+
+ // Setup the rendering state so that the bitmap is painted top left in
+ // the polygon bounding box.
+ rendering::RenderState aRenderState (rDefaultRenderState);
+ aRenderState.AffineTransform = geometry::AffineMatrix2D(1,0, rLocation.X, 0,1,rLocation.Y);
+ aRenderState.Clip = rxPolygon;
+
+ rxCanvas->drawBitmap(
+ rxBitmap,
+ aViewState,
+ aRenderState);
+}
+
+void PresenterCanvasHelper::PaintColor (
+ const css::util::Color nColor,
+ const css::uno::Reference<css::rendering::XCanvas>& rxCanvas,
+ const css::awt::Rectangle& rRepaintBox,
+ const css::uno::Reference<css::rendering::XPolyPolygon2D>& rxPolygon,
+ const css::rendering::ViewState& rDefaultViewState,
+ const css::rendering::RenderState& rDefaultRenderState)
+{
+ if ( ! rxCanvas.is() || ! rxCanvas->getDevice().is())
+ return;
+
+ if ( ! rxPolygon.is())
+ return;
+
+ // Set the repaint box as clip rectangle at the view state.
+ rendering::ViewState aViewState (rDefaultViewState);
+ aViewState.Clip = PresenterGeometryHelper::CreatePolygon(rRepaintBox, rxCanvas->getDevice());
+
+ // Setup the rendering state to use the given color.
+ rendering::RenderState aRenderState (rDefaultRenderState);
+ SetDeviceColor(aRenderState, nColor);
+
+ rxCanvas->fillPolyPolygon(
+ rxPolygon,
+ aViewState,
+ aRenderState);
+}
+
+void PresenterCanvasHelper::SetDeviceColor(
+ rendering::RenderState& rRenderState,
+ const util::Color aColor)
+{
+ // Other component counts then 4 (RGBA) are not accepted (anymore).
+
+ OSL_ASSERT(rRenderState.DeviceColor.getLength() == 4);
+ if (rRenderState.DeviceColor.getLength() == 4)
+ {
+ auto pDeviceColor = rRenderState.DeviceColor.getArray();
+ pDeviceColor[0] = ((aColor >> 16) & 0x0ff) / 255.0;
+ pDeviceColor[1] = ((aColor >> 8) & 0x0ff) / 255.0;
+ pDeviceColor[2] = ((aColor >> 0) & 0x0ff) / 255.0;
+ pDeviceColor[3] = 1.0 - ((aColor >> 24) & 0x0ff) / 255.0;
+ }
+}
+
+css::geometry::RealRectangle2D PresenterCanvasHelper::GetTextBoundingBox (
+ const css::uno::Reference<css::rendering::XCanvasFont>& rxFont,
+ const OUString& rsText,
+ const sal_Int8 nTextDirection)
+{
+ if (rxFont.is() && !rsText.isEmpty())
+ {
+ rendering::StringContext aContext (rsText, 0, rsText.getLength());
+ Reference<rendering::XTextLayout> xLayout (
+ rxFont->createTextLayout(aContext, nTextDirection, 0));
+ return xLayout->queryTextBounds();
+ }
+ else
+ {
+ return geometry::RealRectangle2D(0,0,0,0);
+ }
+}
+
+css::geometry::RealSize2D PresenterCanvasHelper::GetTextSize (
+ const css::uno::Reference<css::rendering::XCanvasFont>& rxFont,
+ const OUString& rsText)
+{
+ const geometry::RealRectangle2D aTextBBox (GetTextBoundingBox(rxFont, rsText));
+ return css::geometry::RealSize2D(aTextBBox.X2 - aTextBBox.X1, aTextBBox.Y2 - aTextBBox.Y1);
+}
+
+} // end of namespace sdext::presenter
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 17:43:25 +0000