KoShape.cpp 10.2 KB
Newer Older
Thomas Zander's avatar
Thomas Zander committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
/* This file is part of the KDE project
   Copyright (C) 2006 Thorsten Zachmann <zachmann@kde.org>
   Copyright (C) 2006 Casper Boemann Rasmussen <cbr@boemann.dk>
   Copyright (C) 2006 Thomas Zander <zander@kde.org>

   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., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/

#include "KoShape.h"
#include "KoShapeContainer.h"
#include "KoSelection.h"
25
#include "KoPointerEvent.h"
Thomas Zander's avatar
Thomas Zander committed
26 27
#include "KoInsets.h"
#include "KoShapeBorderModel.h"
28
#include "KoShapeManager.h"
29
#include "KoShapeUserData.h"
Thomas Zander's avatar
Thomas Zander committed
30 31 32

#include <QPainter>
#include <QtDebug>
33
#include <QVariant>
Thomas Zander's avatar
Thomas Zander committed
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
#include <QPainterPath>

KoShape::KoShape()
: m_backgroundBrush(Qt::NoBrush)
, m_border(0)
, m_scaleX( 1 )
, m_scaleY( 1 )
, m_angle( 0 )
, m_shearX( 0 )
, m_shearY( 0 )
, m_size( 50, 50 )
, m_pos( 0, 0 )
, m_zIndex( 0 )
, m_parent( 0 )
, m_visible( true )
, m_locked( false )
, m_keepAspect( false )
51
, m_selectable( true )
52
, m_userData(0)
Thomas Zander's avatar
Thomas Zander committed
53 54 55 56 57 58
{
    recalcMatrix();
}

KoShape::~KoShape()
{
59
    delete m_userData;
Thomas Zander's avatar
Thomas Zander committed
60 61
}

62
void KoShape::paintDecorations(QPainter &painter, const KoViewConverter &converter, bool selected) {
Thomas Zander's avatar
Thomas Zander committed
63 64 65 66 67 68 69 70 71
    if ( selected )
    {
        // draw connectors
        QPen pen( Qt::blue );
        pen.setWidth( 0 );
        painter.setPen( pen );
        painter.setBrush( Qt::NoBrush );
        for ( int i = 0; i < m_connectors.size(); ++i )
        {
72
            QPointF p = converter.documentToView(m_connectors[ i ]);
Thomas Zander's avatar
Thomas Zander committed
73 74 75 76 77 78 79 80 81 82 83 84 85
            painter.drawLine( QPointF( p.x() - 2, p.y() + 2 ), QPointF( p.x() + 2, p.y() - 2 ) );
            painter.drawLine( QPointF( p.x() + 2, p.y() + 2 ), QPointF( p.x() - 2, p.y() - 2 ) );
        }
    }
}

void KoShape::scale( double sx, double sy )
{
    if(m_scaleX == sx && m_scaleY == sy)
        return;
    m_scaleX = sx;
    m_scaleY = sy;
    recalcMatrix();
86
    shapeChanged(ScaleChanged);
Thomas Zander's avatar
Thomas Zander committed
87 88 89 90 91 92 93 94 95 96
}

void KoShape::rotate( double angle )
{
    if(m_angle == angle)
        return;
    m_angle = angle;
    while(m_angle >= 360) m_angle -= 360;
    while(m_angle <= -360) m_angle += 360;
    recalcMatrix();
97
    shapeChanged(RotationChanged);
Thomas Zander's avatar
Thomas Zander committed
98 99 100 101 102 103 104 105 106
}

void KoShape::shear( double sx, double sy )
{
    if(m_shearX == sx && m_shearY == sy)
        return;
    m_shearX = sx;
    m_shearY = sy;
    recalcMatrix();
107
    shapeChanged(ShearChanged);
Thomas Zander's avatar
Thomas Zander committed
108 109 110 111 112 113
}

void KoShape::resize( const QSizeF &size )
{
    if(m_size == size)
        return;
114 115 116 117

    double fx = size.width() / m_size.width();
    double fy = size.height() / m_size.height();

Thomas Zander's avatar
Thomas Zander committed
118
    m_size = size;
119 120 121 122 123 124 125

    for ( int i = 0; i < m_connectors.size(); ++i )
    {
        QPointF &point = m_connectors[i];
        point.setX(point.x() * fx);
        point.setY(point.y() * fy);
    }
126 127
    recalcMatrix();
    shapeChanged(SizeChanged);
Thomas Zander's avatar
Thomas Zander committed
128 129 130 131 132 133 134 135
}

void KoShape::setPosition( const QPointF &position )
{
    if(m_pos == position)
        return;
    m_pos = position;
    recalcMatrix();
136
    shapeChanged(PositionChanged);
Thomas Zander's avatar
Thomas Zander committed
137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154
}

bool KoShape::hitTest( const QPointF &position ) const
{
    if(m_parent && m_parent->childClipped(this) && !m_parent->hitTest(position))
        return false;

    QPointF point( position * m_invMatrix );
    KoInsets *insets = new KoInsets(0, 0, 0, 0);
    if(m_border)
        m_border->borderInsets(this, *insets);

    bool hit = point.x() >= -insets->left && point.x() <= m_size.width() + insets->right &&
             point.y() >= -insets->top && point.y() <= m_size.height() + insets->bottom;
    delete insets;
    return hit;
}

155
QRectF KoShape::boundingRect() const
Thomas Zander's avatar
Thomas Zander committed
156 157 158 159 160 161 162 163 164
{
    QRectF bb( QPointF(0, 0), m_size );
    return m_matrix.mapRect( bb );
}

void KoShape::recalcMatrix()
{
    m_matrix = transformationMatrix(0);
    m_invMatrix = m_matrix.inverted();
165
    updateTree();
Thomas Zander's avatar
Thomas Zander committed
166 167
}

168
QMatrix KoShape::transformationMatrix(const KoViewConverter *converter) const {
Thomas Zander's avatar
Thomas Zander committed
169 170 171
    QMatrix matrix;
    QRectF zoomedRect = QRectF(position(), size());
    if(converter)
172
        zoomedRect = converter->documentToView(zoomedRect);
Thomas Zander's avatar
Thomas Zander committed
173 174 175 176 177 178 179 180 181 182 183
    matrix.translate( zoomedRect.x(), zoomedRect.y() );

    // apply parents matrix to inherit any transformations done there.
    KoShapeContainer *container = m_parent;
    KoShape const *child = this;
    while(container) {
        if(container->childClipped(child))
            matrix *= container->transformationMatrix(0);
        else {
            QPointF containerPos =container->position();
            if(converter)
184
                containerPos = converter->documentToView(containerPos);
Thomas Zander's avatar
Thomas Zander committed
185 186 187 188 189 190 191 192 193
            matrix.translate(containerPos.x(), containerPos.y());
        }
        container = dynamic_cast<KoShapeContainer*>(container->parent());
        child = child->parent();
    }

    if ( m_angle != 0 )
    {
        matrix.translate( zoomedRect.width() / 2.0 * m_scaleX, zoomedRect.height() / 2.0 * m_scaleY );
194
        matrix.translate( zoomedRect.height() / 2.0 * m_shearX, zoomedRect.width() / 2.0 * m_shearY );
Thomas Zander's avatar
Thomas Zander committed
195
        matrix.rotate( m_angle );
196 197
        matrix.translate( -zoomedRect.width() / 2.0 * m_scaleX, -zoomedRect.height() / 2.0 * m_scaleY );
        matrix.translate( -zoomedRect.height() / 2.0 * m_shearX, -zoomedRect.width() / 2.0 * m_shearY );
Thomas Zander's avatar
Thomas Zander committed
198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214
    }
    matrix.shear( m_shearX, m_shearY );
    matrix.scale( m_scaleX, m_scaleY );
    return matrix;
}


bool KoShape::compareShapeZIndex(KoShape *g1, KoShape *g2) {
    return g1->zIndex() < g2->zIndex();
}

void KoShape::setParent(KoShapeContainer *parent) {
    if(dynamic_cast<KoShape*>(parent) != this)
        m_parent = parent;
    else
        m_parent = 0;
    recalcMatrix();
215
    shapeChanged(ParentChanged);
Thomas Zander's avatar
Thomas Zander committed
216 217 218 219 220 221 222 223 224
}

int KoShape::zIndex() const {
    if(parent()) // we can't be under our parent...
        return qMax(m_zIndex, parent()->zIndex());
    return m_zIndex;
}

void KoShape::repaint() const {
225 226 227 228
    if ( !m_shapeManagers.empty() )
    {
        foreach( KoShapeManager * manager, m_shapeManagers )
        {
229
            QRectF rect(QPointF(0, 0), size() );
230 231 232 233 234 235 236 237
            if(m_border) {
                KoInsets insets(0, 0, 0, 0);
                m_border->borderInsets(this, insets);
                rect.adjust(-insets.left, -insets.top, insets.right, insets.bottom);
            }
            rect = m_matrix.mapRect(rect);
            manager->repaint( rect, this, true );
        }
Thomas Zander's avatar
Thomas Zander committed
238 239 240
    }
}

241
void KoShape::repaint(const QRectF &shape) const {
242 243 244 245 246 247 248 249
    if ( !m_shapeManagers.empty() && isVisible() )
    {
        foreach( KoShapeManager * manager, m_shapeManagers )
        {
            QRectF rect(m_matrix.mapRect(shape));
            manager->repaint(rect);
        }
    }
Thomas Zander's avatar
Thomas Zander committed
250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287
}

void KoShape::repaint(double x, double y, double width, double height) const {
    QRectF rect(x, y, width, height);
    repaint(rect);
}

const QPainterPath KoShape::outline() const {
    QPainterPath path;
    path.addRect(QRectF( QPointF(0, 0), m_size ));
    return path;
}

QPointF KoShape::absolutePosition() const {
    return m_matrix.map(QPointF(size().width() / 2.0 , size().height() / 2.0));
}

void KoShape::setAbsolutePosition(QPointF newPosition) {
    QPointF zero(0, 0);
    QMatrix matrix;
    // apply parents matrix to inherit any transformations done there.
    KoShapeContainer *container = m_parent;
    KoShape const *child = this;
    while(container) {
        if(container->childClipped(child)) {
            matrix *= container->transformationMatrix(0);
            break;
        }
        else {
            QPointF containerPos =container->position();
            matrix.translate(containerPos.x(), containerPos.y());
        }
        container = dynamic_cast<KoShapeContainer*>(container->parent());
        child = child->parent();
    }
    QPointF vector1 = matrix.inverted().map(zero);

    matrix = QMatrix();
288 289 290 291 292 293 294 295
    if ( m_angle != 0 )
    {
        matrix.translate( size().width() / 2.0 * m_scaleX, size().height() / 2.0 * m_scaleY );
        matrix.translate( size().height() / 2.0 * m_shearX, size().width() / 2.0 * m_shearY );
        matrix.rotate( m_angle );
        matrix.translate( -size().width() / 2.0 * m_scaleX, -size().height() / 2.0 * m_scaleY );
        matrix.translate( -size().height() / 2.0 * m_shearX, -size().width() / 2.0 * m_shearY );
    }
Thomas Zander's avatar
Thomas Zander committed
296 297 298 299
    matrix.shear( m_shearX, m_shearY );
    matrix.scale( m_scaleX, m_scaleY );

    QPointF vector2 = matrix.map( QPointF(size().width() / 2.0, size().height() / 2.0) );
300
    //kDebug() << "vector1: " << vector1 << ", vector2: " << vector2 << endl;
Thomas Zander's avatar
Thomas Zander committed
301 302 303 304

    setPosition(newPosition + vector1 - vector2);
}

Thomas Zander's avatar
Thomas Zander committed
305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321
void KoShape::copySettings(const KoShape *shape) {
    m_pos = shape->position();
    m_scaleX = shape->scaleX();
    m_scaleY = shape->scaleY();
    m_angle = shape->rotation();
    m_shearX = shape->shearX();
    m_shearY = shape->shearY();
    m_size = shape->size();
    m_connectors.clear();
    foreach(QPointF point, shape->connectors())
        addConnectionPoint(point);
    m_zIndex = shape->zIndex();
    m_visible = shape->isVisible();
    m_locked = shape->isLocked();
    m_keepAspect = shape->keepAspectRatio();
}

Thomas Zander's avatar
Thomas Zander committed
322 323 324
void KoShape::moveBy(double distanceX, double distanceY) {
    QPointF p = absolutePosition();
    setAbsolutePosition(QPointF(p.x() + distanceX, p.y() + distanceY));
Thomas Zander's avatar
Thomas Zander committed
325 326
}

327 328 329 330 331 332 333 334
void KoShape::updateTree()
{
    foreach( KoShapeManager * manager, m_shapeManagers )
    {
        manager->updateTree( this );
    }
}

335 336 337 338 339 340 341 342 343 344
void KoShape::setUserData(KoShapeUserData *userData) {
    if(m_userData)
        delete m_userData;
    m_userData = userData;
}

KoShapeUserData *KoShape::userData() const {
    return m_userData;
}

345
bool KoShape::hasTransparency() {
Thomas Zander's avatar
Thomas Zander committed
346 347 348 349 350
    if(m_backgroundBrush.style() == Qt::NoBrush)
        return true;
    return !m_backgroundBrush.isOpaque();
}

Thomas Zander's avatar
Thomas Zander committed
351 352 353 354 355 356
// static
void KoShape::applyConversion(QPainter &painter, const KoViewConverter &converter) {
    double zoomX, zoomY;
    converter.zoom(&zoomX, &zoomY);
    painter.scale(zoomX, zoomY);
}
357