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diff --git a/filter/source/graphicfilter/ipict/shape.cxx b/filter/source/graphicfilter/ipict/shape.cxx
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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 .
- */
-
-/** Osnola:
-IMPORTANT NOTE: some Quickdraw lines/frames can not be "quickly" drawn exactly:
-for instance, when PenSize=(1,1), the line from (0,0) to (8,0)
-corresponds to the rectangle (0,0)(0,1)(9,1)(9,0), which can only be drawn
- by drawing a rectangle. Drawing a non horizontal/vertical will imply to draw
-a polygon, ...
-Similarly, drawing the frame of a rectangle (0,0)(0,1)(9,1)(9,0) when PenSize=(1,1),
-will imply to draw a rectangle (0.5,0.5)(0.5,8.5)(8.5,8.5)(8.5,0.5) with linewidth=1...
-
-Here, we choose:
-- for horizontal/vertical lines and line with length less than five to draw the real line,
-- in the other case, we keep the same shape (even if this means some "bad" coordinates)
-*/
-
-#include <basegfx/polygon/b2dpolygon.hxx>
-#include <basegfx/polygon/b2dpolygontools.hxx>
-#include "shape.hxx"
-
-namespace PictReaderShapePrivate {
- /** returns an inside rectangle knowing the penSize in order to obtain the ``correct'' position
- when we draw a frame in wide length*/
- static tools::Rectangle contractRectangle(bool drawFrame, tools::Rectangle const &rect, Size const &pSize) {
- if (!drawFrame) return rect;
- tools::Long penSize=(pSize.Width()+pSize.Height())/2;
- if (2*penSize > rect.Right()-rect.Left()) penSize = (rect.Right()-rect.Left()+1)/2;
- if (2*penSize > rect.Bottom()-rect.Top()) penSize = (rect.Bottom()-rect.Top()+1)/2;
- tools::Long const X[2] = { rect.Left()+penSize/2, rect.Right()-(penSize+1)/2 };
- tools::Long const Y[2] = { rect.Top()+penSize/2, rect.Bottom()-(penSize+1)/2 };
- return tools::Rectangle(Point(X[0],Y[0]), Point(X[1], Y[1]));
- }
-}
-
-namespace PictReaderShape {
- //--------- draws a horizontal/vertical/small line (by creating a "rectangle/polygon") ---------
- static bool drawLineHQ(VirtualDevice *dev, Point const &orig, Point const &dest, Size const &pSize) {
- tools::Long dir[2] = { dest.X()-orig.X(), dest.Y()-orig.Y() };
- bool vertic = dir[0] == 0;
- bool horiz = dir[1] == 0;
- if (!horiz && !vertic && dir[0]*dir[0]+dir[1]*dir[1] > 25) return false;
-
- using namespace basegfx;
- B2DPolygon poly;
- if (horiz || vertic) {
- tools::Long X[2]={ orig.X(), dest.X() }, Y[2] = { orig.Y(), dest.Y() };
- if (horiz) {
- if (X[0] < X[1]) X[1]+=pSize.Width();
- else X[0]+=pSize.Width();
- Y[1] += pSize.Height();
- }
- else {
- if (Y[0] < Y[1]) Y[1]+=pSize.Height();
- else Y[0]+=pSize.Height();
- X[1] += pSize.Width();
- }
- poly.append(B2DPoint(X[0], Y[0])); poly.append(B2DPoint(X[1], Y[0]));
- poly.append(B2DPoint(X[1], Y[1])); poly.append(B2DPoint(X[0], Y[1]));
- poly.append(B2DPoint(X[0], Y[0]));
- }
- else {
- tools::Long origPt[4][2] = { { orig.X(), orig.Y() }, { orig.X()+pSize.Width(), orig.Y() },
- { orig.X()+pSize.Width(), orig.Y()+pSize.Height() },
- { orig.X(), orig.Y()+pSize.Height() }};
- int origAvoid = dir[0] > 0 ? (dir[1] > 0 ? 2 : 1) : (dir[1] > 0 ? 3 : 0);
- tools::Long destPt[4][2] = { { dest.X(), dest.Y() }, { dest.X()+pSize.Width(), dest.Y() },
- { dest.X()+pSize.Width(), dest.Y()+pSize.Height() },
- { dest.X(), dest.Y()+pSize.Height() }};
- for (int w = origAvoid+1; w < origAvoid+4; w++) {
- int wh = w%4;
- poly.append(B2DPoint(origPt[wh][0], origPt[wh][1]));
- }
- for (int w = origAvoid+3; w < origAvoid+6; w++) {
- int wh = w%4;
- poly.append(B2DPoint(destPt[wh][0], destPt[wh][1]));
- }
- int wh = (origAvoid+1)%4;
- poly.append(B2DPoint(origPt[wh][0], origPt[wh][1]));
- }
-
- // HACK: here we use the line coloring when drawing the shape
- // must be changed if other parameter are changed to draw
- // a line/fill shape
- Color oldFColor = dev->GetFillColor(), oldLColor = dev->GetLineColor();
- dev->SetFillColor(oldLColor); dev->SetLineColor(COL_TRANSPARENT);
- dev->DrawPolygon(poly);
- dev->SetLineColor(oldLColor); dev->SetFillColor(oldFColor);
- return true;
- }
-
-
- //-------------------- draws a line --------------------
-
- void drawLine(VirtualDevice *dev, Point const &orig, Point const &dest, Size const &pSize) {
- if (drawLineHQ(dev,orig,dest,pSize)) return;
-
- tools::Long penSize=(pSize.Width()+pSize.Height())/2;
- tools::Long decal[2] = { pSize.Width()/2, pSize.Height()/2};
-
- using namespace basegfx;
- B2DPolygon poly;
- poly.append(B2DPoint(double(orig.X()+decal[0]), double(orig.Y()+decal[1])));
- poly.append(B2DPoint(double(dest.X()+decal[0]), double(dest.Y()+decal[1])));
- dev->DrawPolyLine(poly, double(penSize), basegfx::B2DLineJoin::NONE);
- }
-
- //-------------------- draws a rectangle --------------------
- /* Note(checkme): contradictally with the QuickDraw's reference 3-23, it seems better to consider
- that the frame/content of a rectangle appears inside the given rectangle. Does a conversion
- appear between the pascal functions and the data stored in the file ? */
- void drawRectangle(VirtualDevice *dev, bool drawFrame, tools::Rectangle const &orig, Size const &pSize) {
- int penSize=(pSize.Width()+pSize.Height())/2;
- tools::Rectangle rect = PictReaderShapePrivate::contractRectangle(drawFrame, orig, pSize);
- tools::Long const X[2] = { rect.Left(), rect.Right() };
- tools::Long const Y[2] = { rect.Top(), rect.Bottom() };
-
- using namespace basegfx;
- B2DPolygon poly;
- poly.append(B2DPoint(X[0], Y[0])); poly.append(B2DPoint(X[1], Y[0]));
- poly.append(B2DPoint(X[1], Y[1])); poly.append(B2DPoint(X[0], Y[1]));
- poly.append(B2DPoint(X[0], Y[0]));
-
- if (drawFrame)
- dev->DrawPolyLine(poly, double(penSize), basegfx::B2DLineJoin::NONE);
- else
- dev->DrawPolygon(poly);
- }
-
- //-------------------- draws an ellipse --------------------
- void drawEllipse(VirtualDevice *dev, bool drawFrame, tools::Rectangle const &orig, Size const &pSize) {
- int penSize=(pSize.Width()+pSize.Height())/2;
- tools::Rectangle oval = PictReaderShapePrivate::contractRectangle(drawFrame, orig, pSize);
- using namespace basegfx;
- tools::Long const X[2] = { oval.Left(), oval.Right() };
- tools::Long const Y[2] = { oval.Top(), oval.Bottom() };
- B2DPoint center(0.5*(X[1]+X[0]), 0.5*(Y[1]+Y[0]));
- B2DPolygon poly = basegfx::utils::createPolygonFromEllipse(center, 0.5*(X[1]-X[0]), 0.5*(Y[1]-Y[0]));
- if (drawFrame)
- dev->DrawPolyLine(poly, double(penSize), basegfx::B2DLineJoin::NONE);
- else
- dev->DrawPolygon(poly);
- }
-
- //-------------------- draws an arc/pie --------------------
- void drawArc(VirtualDevice *dev, bool drawFrame, tools::Rectangle const &orig, const double& angle1, const double& angle2, Size const &pSize) {
- int penSize=(pSize.Width()+pSize.Height())/2;
- tools::Rectangle arc = PictReaderShapePrivate::contractRectangle(drawFrame, orig, pSize);
- using namespace basegfx;
-
- // pict angle are CW with 0 at twelve o'clock (with Y-axis inverted)...
- double angl1 = angle1-M_PI_2;
- double angl2 = angle2-M_PI_2;
- tools::Long const X[2] = { arc.Left(), arc.Right() };
- tools::Long const Y[2] = { arc.Top(), arc.Bottom() };
- B2DPoint center(0.5*(X[1]+X[0]), 0.5*(Y[1]+Y[0]));
-
- // We must have angl1 between 0 and F_2PI
- while (angl1 < 0.0) { angl1 += F_2PI; angl2 += F_2PI; }
- while (angl1 >= F_2PI) { angl1 -= F_2PI; angl2 -= F_2PI; }
-
- // if this happen, we want a complete circle
- // so we set angl2 slightly less than angl1
- if (angl2 >= angl1+F_2PI) angl2 = angl1-0.001;
-
- // We must have angl2 between 0 and F_2PI
- while (angl2 < 0.0) angl2 += F_2PI;
- while (angl2 >= F_2PI) angl2 -= F_2PI;
-
- B2DPolygon poly = basegfx::utils::createPolygonFromEllipseSegment(center, 0.5*(X[1]-X[0]), 0.5*(Y[1]-Y[0]), angl1, angl2);
- if (drawFrame)
- dev->DrawPolyLine(poly, double(penSize), basegfx::B2DLineJoin::NONE);
- else {
- // adds circle's center
- poly.append(center);
- dev->DrawPolygon(poly);
- }
- }
- //-------------------- draws a rectangle with round corner --------------------
- void drawRoundRectangle(VirtualDevice *dev, bool drawFrame, tools::Rectangle const &orig, Size const &ovalSize, Size const &pSize) {
- int penSize=(pSize.Width()+pSize.Height())/2;
- tools::Rectangle oval = PictReaderShapePrivate::contractRectangle(drawFrame, orig, pSize);
- int ovalW=ovalSize.Width(), ovalH=ovalSize.Height();
- using namespace basegfx;
- tools::Long const X[2] = { oval.Left(), oval.Right() };
- tools::Long const Y[2] = { oval.Top(), oval.Bottom() };
- tools::Long width = X[1] - X[0];
- tools::Long height = Y[1] - Y[0];
- if (ovalW > width) ovalW = static_cast< int >( width );
- if (ovalH > height) ovalH = static_cast< int >( height );
-
- B2DRectangle rect(B2DPoint(X[0],Y[0]), B2DPoint(X[1],Y[1]));
- B2DPolygon poly = basegfx::utils::createPolygonFromRect(rect, (width != 0.0) ? ovalW/width : 0.0, (height != 0.0) ? ovalH/height : 0.0);
-
- if (drawFrame)
- dev->DrawPolyLine(poly, double(penSize), basegfx::B2DLineJoin::NONE);
- else
- dev->DrawPolygon(poly);
- }
-
- //-------------------- draws a polygon --------------------
-void drawPolygon(VirtualDevice *dev, bool drawFrame, tools::Polygon const &orig, Size const &pSize) {
- int penSize=(pSize.Width()+pSize.Height())/2;
- tools::Long decalTL[2] = {0, 0}, decalBR[2] = { pSize.Width(), pSize.Height()};
- if (drawFrame) {
- decalTL[0] += penSize/2; decalTL[1] += penSize/2;
- decalBR[0] -= (penSize+1)/2; decalBR[1] -= (penSize+1)/2;
- }
- // Quickdraw Drawing Reference 3-82: the pen size is only used for frame
- else decalBR[0] = decalBR[1] = 0;
-
-
- int numPt = orig.GetSize();
- if (numPt <= 1) return;
-
- // we compute a barycenter of the point to define the extended direction of each point
- double bary[2] = { 0.0, 0.0 };
- for (int i = 0; i < numPt; i++) {
- Point const &pt = orig.GetPoint(i);
- bary[0] += double(pt.X()); bary[1] += double(pt.Y());
- }
- bary[0]/=double(numPt); bary[1]/=double(numPt);
-
- using namespace basegfx;
- B2DPolygon poly;
- poly.reserve(numPt);
- // Note: a polygon can be open, so we must not close it when we draw the frame
- for (int i = 0; i < numPt; i++) {
- Point const &pt = orig.GetPoint(i);
- double x = (double(pt.X()) < bary[0]) ? pt.X()+decalTL[0] : pt.X()+decalBR[0];
- double y = (double(pt.Y()) < bary[1]) ? pt.Y()+decalTL[1] : pt.Y()+decalBR[1];
- poly.append(B2DPoint(x, y));
- }
- if (drawFrame)
- dev->DrawPolyLine(poly, double(penSize), basegfx::B2DLineJoin::NONE);
- else
- dev->DrawPolygon(poly);
- }
-
-
-}
-
-/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit (git 2.34.1) at 2024-06-26 17:30:13 +0000