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-rw-r--r--src/libavoid/shape.cpp280
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diff --git a/src/libavoid/shape.cpp b/src/libavoid/shape.cpp
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-/*
- * vim: ts=4 sw=4 et tw=0 wm=0
- *
- * libavoid - Fast, Incremental, Object-avoiding Line Router
- *
- * Copyright (C) 2004-2013 Monash University
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- * See the file LICENSE.LGPL distributed with the library.
- *
- * Licensees holding a valid commercial license may use this file in
- * accordance with the commercial license agreement provided with the
- * library.
- *
- * 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.
- *
- * Author(s): Michael Wybrow
-*/
-
-#include <cstdlib>
-
-#include "libavoid/shape.h"
-#include "libavoid/vertices.h"
-#include "libavoid/router.h"
-#include "libavoid/connend.h"
-#include "libavoid/debug.h"
-#include "libavoid/assertions.h"
-#include "libavoid/connectionpin.h"
-
-
-namespace Avoid {
-
-
-ShapeRef::ShapeRef(Router *router, Polygon& ply, const unsigned int id)
- : Obstacle(router, ply, id)
-{
- m_router->addShape(this);
-}
-
-
-ShapeRef::~ShapeRef()
-{
- if (m_router->m_currently_calling_destructors == false)
- {
- err_printf("ERROR: ShapeRef::~ShapeRef() shouldn't be called directly.\n");
- err_printf(" It is owned by the router. Call Router::deleteShape() instead.\n");
- abort();
- }
-}
-
-
-void ShapeRef::moveAttachedConns(const Polygon& newPoly)
-{
- // Update positions of attached connector ends.
- for (std::set<ConnEnd *>::iterator curr = m_following_conns.begin();
- curr != m_following_conns.end(); ++curr)
- {
- ConnEnd *connEnd = *curr;
- COLA_ASSERT(connEnd->m_conn_ref != NULL);
- bool connPinUpdate = true;
- m_router->modifyConnector(connEnd->m_conn_ref, connEnd->endpointType(),
- *connEnd, connPinUpdate);
- }
- for (ShapeConnectionPinSet::iterator curr =
- m_connection_pins.begin(); curr != m_connection_pins.end(); ++curr)
- {
- ShapeConnectionPin *pin = *curr;
- pin->updatePosition(newPoly);
- }
-}
-
-static double absoluteOffsetInverse(double offset,
- const Box& shapeBox, size_t toDim)
-{
- if (offset == ATTACH_POS_MIN_OFFSET)
- {
- return ATTACH_POS_MAX_OFFSET;
- }
-
- if (offset == ATTACH_POS_MAX_OFFSET)
- {
- return ATTACH_POS_MIN_OFFSET;
- }
-
- return shapeBox.length(toDim) - offset;
-}
-
-void ShapeRef::transformConnectionPinPositions(
- ShapeTransformationType transform)
-{
- for (ShapeConnectionPinSet::iterator curr =
- m_connection_pins.begin(); curr != m_connection_pins.end(); ++curr)
- {
- ShapeConnectionPin *pin = *curr;
- double usingProportionalOffsets = pin->m_using_proportional_offsets;
- double& xOffset = pin->m_x_offset;
- double& yOffset = pin->m_y_offset;
- ConnDirFlags& visDirs = pin->m_visibility_directions;
- double tmpOffset;
-
- // Number of clockwise 90 degree rotations;
- unsigned int rotationN = 0;
-
- if (usingProportionalOffsets)
- {
- // Translate to Origin.
- xOffset -= 0.5;
- yOffset -= 0.5;
-
- switch (transform)
- {
- case TransformationType_CW90:
- rotationN = 3;
- // Y <- inverse X, X <- inverse Y
- tmpOffset = yOffset;
- yOffset = xOffset;
- xOffset = -tmpOffset;
- break;
- case TransformationType_CW180:
- rotationN = 2;
- // Y <- inverse Y, X <- inverse X
- yOffset = -yOffset;
- xOffset = -xOffset;
- break;
- case TransformationType_CW270:
- rotationN = 1;
- // Y <- X, X <- Y
- tmpOffset = yOffset;
- yOffset = -xOffset;
- xOffset = tmpOffset;
- break;
- case TransformationType_FlipX:
- // Y <- Y, X <- inverse X
- xOffset = -xOffset;
- break;
- case TransformationType_FlipY:
- // X <- inverse X, Y <- Y
- yOffset = -yOffset;
- break;
- }
- // Translate back.
- xOffset += 0.5;
- yOffset += 0.5;
- }
- else
- {
- // Using absolute offsets for pin.
-
- const Box shapeBox = pin->m_shape->polygon().offsetBoundingBox(0.0);
- switch (transform)
- {
- case TransformationType_CW90:
- rotationN = 3;
- // Y <- inverse X, X <- inverse Y
- tmpOffset = yOffset;
- yOffset = xOffset;
- xOffset = absoluteOffsetInverse(tmpOffset, shapeBox, XDIM);
- break;
- case TransformationType_CW180:
- rotationN = 2;
- // Y <- inverse Y, X <- inverse X
- yOffset = absoluteOffsetInverse(yOffset, shapeBox, YDIM);
- xOffset = absoluteOffsetInverse(xOffset, shapeBox, XDIM);
- break;
- case TransformationType_CW270:
- rotationN = 1;
- // Y <- X, X <- Y
- tmpOffset = yOffset;
- yOffset = absoluteOffsetInverse(xOffset, shapeBox, YDIM);
- xOffset = tmpOffset;
- break;
- case TransformationType_FlipX:
- // Y <- Y, X <- inverse X
- xOffset = absoluteOffsetInverse(xOffset, shapeBox, XDIM);
- break;
- case TransformationType_FlipY:
- // X <- inverse X, Y <- Y
- yOffset = absoluteOffsetInverse(yOffset, shapeBox, YDIM);
- break;
- }
- }
-
- if ( (visDirs & ConnDirAll) && (visDirs != ConnDirAll) )
- {
- // Visibility is set, but not in all directions.
-
- const unsigned int dirU = 0;
- const unsigned int dirR = 1;
- const unsigned int dirD = 2;
- const unsigned int dirL = 3;
-
- bool visInDir[4] = { false };
- if (visDirs & ConnDirUp) visInDir[dirU] = true;
- if (visDirs & ConnDirRight) visInDir[dirR] = true;
- if (visDirs & ConnDirDown) visInDir[dirD] = true;
- if (visDirs & ConnDirLeft) visInDir[dirL] = true;
-
- if (transform == TransformationType_FlipY)
- {
- bool tmpBool = visInDir[dirU];
- visInDir[dirU] = visInDir[dirD];
- visInDir[dirD] = tmpBool;
- }
- else if (transform == TransformationType_FlipX)
- {
- bool tmpBool = visInDir[dirL];
- visInDir[dirL] = visInDir[dirR];
- visInDir[dirR] = tmpBool;
- }
-
- visDirs = ConnDirNone;
- if (visInDir[(rotationN + dirU) % 4]) visDirs |= ConnDirUp;
- if (visInDir[(rotationN + dirR) % 4]) visDirs |= ConnDirRight;
- if (visInDir[(rotationN + dirD) % 4]) visDirs |= ConnDirDown;
- if (visInDir[(rotationN + dirL) % 4]) visDirs |= ConnDirLeft;
- }
- pin->updatePositionAndVisibility();
- m_router->modifyConnectionPin(pin);
- }
-}
-
-
-const Polygon& ShapeRef::polygon(void) const
-{
- return m_polygon;
-}
-
-
-void ShapeRef::outputCode(FILE *fp) const
-{
- fprintf(fp, " // shapeRef%u\n", id());
- fprintf(fp, " polygon = Polygon(%lu);\n", (unsigned long) polygon().size());
- for (size_t i = 0; i < polygon().size(); ++i)
- {
- fprintf(fp, " polygon.ps[%lu] = Point(%" PREC "g, %" PREC "g);\n",
- (unsigned long) i, polygon().at(i).x, polygon().at(i).y);
- }
-
- fprintf(fp, " ");
- if (!m_connection_pins.empty())
- {
- fprintf(fp, "ShapeRef *shapeRef%u = ", id());
- }
- fprintf(fp, "new ShapeRef(router, polygon, %u);\n", id());
- for (ShapeConnectionPinSet::const_iterator curr =
- m_connection_pins.begin();
- curr != m_connection_pins.end(); ++curr)
- {
- (*curr)->outputCode(fp);
- }
- fprintf(fp, "\n");
-}
-
-
-Point ShapeRef::position(void) const
-{
- Box bBox = routingBox();
-
- Point centre;
-
- centre.x = bBox.min.x + (0.5 * (bBox.max.x - bBox.min.x));
- centre.y = bBox.min.y + (0.5 * (bBox.max.y - bBox.min.y));
-
- return centre;
-}
-
-
-void ShapeRef::setCentrePos(const Point& newCentre)
-{
- Point diff = newCentre - position();
- m_polygon.translate(diff.x, diff.y);
-}
-
-}
-
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