Members of the KDE Community are recommended to subscribe to the kde-community mailing list at https://mail.kde.org/mailman/listinfo/kde-community to allow them to participate in important discussions and receive other important announcements

KoShape.h 40.1 KB
Newer Older
Thomas Zander's avatar
Thomas Zander committed
1
/* This file is part of the KDE project
2
   Copyright (C) 2006-2008 Thorsten Zachmann <zachmann@kde.org>
3
   Copyright (C) 2006, 2008 Casper Boemann <cbr@boemann.dk>
4
   Copyright (C) 2006-2010 Thomas Zander <zander@kde.org>
5
   Copyright (C) 2007-2009,2011 Jan Hambrecht <jaham@gmx.net>
Thomas Zander's avatar
Thomas Zander committed
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

   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.
*/

Thomas Zander's avatar
Thomas Zander committed
23 24
#ifndef KOSHAPE_H
#define KOSHAPE_H
Thomas Zander's avatar
Thomas Zander committed
25

26
#include "KoInsets.h"
27
#include "KoFlake.h"
28
#include "KoConnectionPoint.h"
29

30
#include <QTransform>
Thomas Zander's avatar
Thomas Zander committed
31
#include <QVector>
32
#include <QSet>
33
#include <QMap>
Thomas Zander's avatar
Thomas Zander committed
34
#include <QBrush>
35
#include <QMetaType>
Thomas Zander's avatar
Thomas Zander committed
36

37
#include <KoXmlReaderForward.h>
38

39
//#include <KoSnapData.h>
40

41 42
#include "flake_export.h"

Thomas Zander's avatar
Thomas Zander committed
43 44 45 46 47 48
class QPainter;
class QRectF;
class QPainterPath;

class KoShapeContainer;
class KoShapeBorderModel;
49
class KoShapeBackground;
50
class KoShapeManager;
51
class KoShapeUserData;
52
class KoViewConverter;
53
class KoShapeApplicationData;
54
class KoShapeSavingContext;
55
class KoCanvasBase;
56
class KoShapeLoadingContext;
57
class KoGenStyle;
58
class KoShapeControllerBase;
59
class KoDataCenterBase;
60
class KoShapeShadow;
61
class KoEventAction;
62
class KoShapePrivate;
63
class KoFilterEffectStack;
64
class KoSnapData;
Thomas Zander's avatar
Thomas Zander committed
65 66

/**
67
 *
68
 * Base class for all flake shapes. Shapes extend this class
Thomas Zander's avatar
Thomas Zander committed
69 70 71
 * to allow themselves to be manipulated. This class just represents
 * a graphical shape in the document and can be manipulated by some default
 * tools in this library.
72
 *
73
 * Due to the limited responsibility of this class, the extending object
Thomas Zander's avatar
Thomas Zander committed
74
 * can have any data backend and is responsible for painting itself.
75
 *
76
 * We strongly suggest that any extending class will use a Model View
Thomas Zander's avatar
Thomas Zander committed
77
 * Controller (MVC) design where the View part is all in this class, as well
78
 * as the one that inherits from this one.  This allows the data that rests
Thomas Zander's avatar
Thomas Zander committed
79
 * in the model to be reused in different parts of the document. For example
80
 * by having two flake objects that show that same data. Or each showing a section of it.
81
 *
82 83 84 85 86
 * The KoShape data is completely in postscript-points (pt) (see KoUnit
 * for conversion methods to and from points).
 * This image will explain the real-world use of the shape and its options.
 * <img src="../flake_shape_coords.png" align=center><br>
 *  The Rotation center can be returned with absolutePosition()
87
 *
88
 * <p>Flake objects can be created in three ways:
89 90 91 92 93
 * <ul>
 *   <li>a simple new KoDerivedFlake(),
 *   <li>through an associated tool,
 *   <li>through a factory
 * </ul>
94
 *
Thomas Zander's avatar
Thomas Zander committed
95 96 97 98 99 100 101 102 103 104 105 106 107
 * <h1>Shape interaction notifications</h1>
 * We had several notification methods that allow your shape to be notified of changes in other
 * shapes positions or rotation etc.
 * <ol><li>The most general is KoShape::shapeChanged().<br>
 * a virtual method that you can use to check various changed to your shape made by tools or otherwise.</li>
 * <li>for shape hierarchies the parent may receive a notification when a child was modified.
 *  This is done though KoShapeContainerModel::childChanged()</li>
 * <li>any shape that is at a similar position as another shape there is collision detection.
 * You can register your shape to be sensitive to any changes like moving or whatever to
 * <b>other</b> shapes that intersect yours.
 * Such changes will then be notified to your shape using the method from (1) You should call
 * KoShape::setCollisionDetection(bool) to enable this.
 * </ol>
Thomas Zander's avatar
Thomas Zander committed
108
 */
109
class FLAKE_EXPORT KoShape
Thomas Zander's avatar
Thomas Zander committed
110 111
{
public:
112 113 114
    /// Used by shapeChanged() to select which change was made
    enum ChangeType {
        PositionChanged, ///< used after a setPosition()
115
        RotationChanged, ///< used after a setRotation()
Thomas Zander's avatar
Thomas Zander committed
116
        ScaleChanged,   ///< used after a scale()
Thomas Zander's avatar
Thomas Zander committed
117
        ShearChanged,   ///< used after a shear()
118
        SizeChanged,    ///< used after a setSize()
119
        GenericMatrixChange,    ///< used after the matrix was changed without knowing which property explicitly changed
120
        ParentChanged,   ///< used after a setParent()
121
        CollisionDetected, ///< used when another shape moved in our boundingrect
122 123
        Deleted, ///< the shape was deleted
        BorderChanged, ///< the shapes border has changed
124
        BackgroundChanged, ///< the shapes background has changed
125
        ShadowChanged, ///< the shapes shadow has changed
126 127
        ParameterChanged, ///< the shapes parameter has changed (KoParameterShape only)
        ContentChanged, ///< the content of the shape changed e.g. a new image inside a pixmap/text change inside a textshape
128
        TextRunAroundChanged, ///< used after a setTextRunAroundSide()
Jan Hambrecht's avatar
Jan Hambrecht committed
129 130
        ChildChanged, ///< a child of a container was changed/removed. This is propagated to all parents
        ConnectionPointChanged ///< a connection point has changed
131 132
    };

Boudewijn Rempt's avatar
Boudewijn Rempt committed
133 134 135 136 137 138
    /// See QGraphicsItem::CacheMode
    enum CacheMode {
        NoCache, ///< no cache -- the default
        ScaledCache, ///< cache at every zoomlevel
    };

139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157
    /// The behavior text should do when intersecting this shape.
    enum TextRunAroundSide {
        BiggestRunAroundSide,   ///< Run other text around the side that has the most space
        LeftRunAroundSide,      ///< Run other text around the left side of the frame
        RightRunAroundSide,     ///< Run other text around the right side of the frame
        AutoRunAroundSide,      ///< Run other text dynamically around both sides of the shape, provided there is sufficient space left
        BothRunAroundSide,      ///< Run other text around both sides of the shape
        NoRunAround,            ///< The text will be completely avoiding the frame by keeping the horizontal space that this frame occupies blank.
        RunThrough              ///< The text will completely ignore the frame and layout as if it was not there
    };

    /**
     * TODO
     */
    enum Through {
        Background,
        Foreground
    };

Thomas Zander's avatar
Thomas Zander committed
158 159 160 161 162 163 164 165 166 167 168 169 170 171
    /**
     * @brief Constructor
     */
    KoShape();

    /**
     * @brief Destructor
     */
    virtual ~KoShape();

    /**
     * @brief Paint the shape
     * The class extending this one is responsible for painting itself.  Since we do not
     * assume the shape is square the paint must also clear its background if it will draw
172
     * something transparent on top.
Thomas Zander's avatar
Thomas Zander committed
173 174 175 176
     * This can be done with a method like:
     * <code>
       painter.fillRect(converter.normalToView(QRectF(QPointF(0.0,0.0), size())), background());</code>
     * Or equavalent for non-square objects.
177 178
     * Do note that a shape's top-left is always at coordinate 0,0. Even if the shape itself is rotated
     * or translated.
Thomas Zander's avatar
Thomas Zander committed
179 180 181 182
     * @param painter used for painting the shape
     * @param converter to convert between internal and view coordinates.
     * @see applyConversion()
     */
183
    virtual void paint(QPainter &painter, const KoViewConverter &converter) = 0;
Thomas Zander's avatar
Thomas Zander committed
184 185 186 187 188 189 190

    /**
     * Paint non-print decorations specific for this type of shape.
     * The default implementation is empty.
     *
     * @param painter used for painting the shape
     * @param converter to convert between internal and view coordinates.
Thomas Zander's avatar
Thomas Zander committed
191
     * @param canvas the canvas that requested this paint.  This can be used to retrieve canvas specific properties
192
     *      like selection and get a reference to the KoResourceManager.
Thomas Zander's avatar
Thomas Zander committed
193
     */
194
    virtual void paintDecorations(QPainter &painter, const KoViewConverter &converter, const KoCanvasBase *canvas);
Thomas Zander's avatar
Thomas Zander committed
195

196 197 198 199 200 201
    /**
     * Load a shape from odf
     *
     * @param context the KoShapeLoadingContext used for loading
     * @param element element which represents the shape in odf
     *
202
     * @return false if loading failed
203
     */
204
    virtual bool loadOdf(const KoXmlElement &element, KoShapeLoadingContext &context) = 0;
205

206
    /**
207
     * @brief store the shape data as ODF XML.
Thomas Zander's avatar
fix dox  
Thomas Zander committed
208
     * This is the method that will be called when saving a shape as a described in
209
     * OpenDocument 9.2 Drawing Shapes.
Thorsten Zachmann's avatar
Thorsten Zachmann committed
210
     * @see saveOdfAttributes
211
     */
212
    virtual void saveOdf(KoShapeSavingContext &context) const = 0;
213 214

    /**
215 216 217 218 219 220
     * This method can be used while saving the shape as ODF to add the data
     * stored on this shape to the current element.
     *
     * @param context the context for the current save.
     * @param attributes a number of OdfAttribute items to state which attributes to save.
     * @see saveOdf
221
     */
222
    void saveOdfAttributes(KoShapeSavingContext &context, int attributes) const;
223

Thorsten Zachmann's avatar
Thorsten Zachmann committed
224 225 226 227 228
    /**
     * This method can be used while saving the shape as Odf to add common child elements
     *
     * The office:event-listeners and draw:glue-point are saved.
     */
229
    void saveOdfCommonChildElements(KoShapeSavingContext &context) const;
Thorsten Zachmann's avatar
Thorsten Zachmann committed
230

Thomas Zander's avatar
Thomas Zander committed
231 232 233 234 235 236 237
    /**
     * @brief Scale the shape using the zero-point which is the top-left corner.
     * @see position()
     *
     * @param sx scale in x direction
     * @param sy scale in y direction
     */
Thomas Zander's avatar
Thomas Zander committed
238
    void scale(qreal sx, qreal sy);
Thomas Zander's avatar
Thomas Zander committed
239 240

    /**
241
     * @brief Rotate the shape (relative)
Thomas Zander's avatar
Thomas Zander committed
242
     *
243
     * The shape will be rotated from the current rotation using the center of the shape using the size()
Thomas Zander's avatar
Thomas Zander committed
244
     *
245
     * @param angle change the angle of rotation increasing it with 'angle' degrees
Thomas Zander's avatar
Thomas Zander committed
246
     */
247
    void rotate(qreal angle);
Thomas Zander's avatar
Thomas Zander committed
248 249 250

    /**
     * Return the current rotation in degrees.
251
     * It returns NaN if the shape has a shearing or scaling transformation applied.
Thomas Zander's avatar
Thomas Zander committed
252
     */
253
    qreal rotation() const;
Thomas Zander's avatar
Thomas Zander committed
254 255 256 257 258 259 260 261 262

    /**
     * @brief Shear the shape
     * The shape will be sheared using the zero-point which is the top-left corner.
     * @see position()
     *
     * @param sx shear in x direction
     * @param sy shear in y direction
     */
Thomas Zander's avatar
Thomas Zander committed
263
    void shear(qreal sx, qreal sy);
Thomas Zander's avatar
Thomas Zander committed
264 265 266 267

    /**
     * @brief Resize the shape
     *
268
     * @param size the new size of the shape.  This is different from scaling as
Jan Hambrecht's avatar
Jan Hambrecht committed
269
     * scaling is a so called secondary operation which is comparable to zooming in
Thomas Zander's avatar
Thomas Zander committed
270 271 272 273
     * instead of changing the size of the basic shape.
     * Easiest example of this difference is that using this method will not distort the
     * size of pattern-fills and borders.
     */
274
    virtual void setSize(const QSizeF &size);
Thomas Zander's avatar
Thomas Zander committed
275 276 277 278

    /**
     * @brief Get the size of the shape in pt.
     *
Thorsten Zachmann's avatar
Thorsten Zachmann committed
279 280
     * The size is in shape coordinates.
     *
Inge Wallin's avatar
Inge Wallin committed
281
     * @return the size of the shape as set by setSize()
Thomas Zander's avatar
Thomas Zander committed
282
     */
Thomas Zander's avatar
Thomas Zander committed
283
    virtual QSizeF size() const;
Thomas Zander's avatar
Thomas Zander committed
284 285 286 287 288 289

    /**
     * @brief Set the position of the shape in pt
     *
     * @param position the new position of the shape
     */
290
    virtual void setPosition(const QPointF &position);
Thomas Zander's avatar
Thomas Zander committed
291 292 293 294 295 296

    /**
     * @brief Get the position of the shape in pt
     *
     * @return the position of the shape
     */
297
    QPointF position() const;
Thomas Zander's avatar
Thomas Zander committed
298 299 300 301 302 303

    /**
     * @brief Check if the shape is hit on position
     * @param position the position where the user clicked.
     * @return true when it hits.
     */
304
    virtual bool hitTest(const QPointF &position) const;
Thomas Zander's avatar
Thomas Zander committed
305 306 307 308 309 310 311 312

    /**
     * @brief Get the bounding box of the shape
     *
     * This includes the line width but not the shadow of the shape
     *
     * @return the bounding box of the shape
     */
313
    virtual QRectF boundingRect() const;
Thomas Zander's avatar
Thomas Zander committed
314 315 316

    /**
     * @brief Add a connector point to the shape
317
     * 
Thomas Zander's avatar
Thomas Zander committed
318 319 320
     * A connector is a place on the shape that allows a graphical connection to be made
     * using a line, for example.
     *
321
     * @param point the connection point to add
322
     * @return the id of the new connection point
Thomas Zander's avatar
Thomas Zander committed
323
     */
324
    int addConnectionPoint(const KoConnectionPoint &point);
325

326
    /**
327
     * Sets data of connection point with specified id.
328 329
     *
     * The position of the connector is restricted to the bounding rectangle of the shape.
330 331 332 333
     * When setting a default connection point, the new position is ignored, as these
     * are fixed at their default position.
     * The function will insert a new connection point if the specified id was not used
     * before.
334
     * 
335 336 337
     * @param connectionPointId the id of the connection point to set
     * @param point the connection point data
     * @return false if specified connection point id is invalid, else true
338
     */
339
    bool setConnectionPoint(int connectionPointId, const KoConnectionPoint &point);
340

341 342 343 344
    /// Checks if a connection point with the specified id exists
    bool hasConnectionPoint(int connectionPointId) const;

    /// Returns connection point with specified connection point id
345
    KoConnectionPoint connectionPoint(int connectionPointId) const;
Thomas Zander's avatar
Thomas Zander committed
346

347 348
    /**
     * Return a list of the connection points that have been added to this shape.
Thomas Zander's avatar
Thomas Zander committed
349
     * All the points are relative to the shape position, see absolutePosition().
350 351
     * @return a list of the connectors that have been added to this shape.
     */
352
    KoConnectionPoints connectionPoints() const;
Thomas Zander's avatar
Thomas Zander committed
353

354 355 356 357 358 359
    /// Removes connection point with specified id
    void removeConnectionPoint(int connectionPointId);

    /// Removes all connection points
    void clearConnectionPoints();

360
    /**
361
     * Add a event action
362
     */
363
    void addEventAction(KoEventAction *action);
364 365 366 367

    /**
     * Remove a event action
     */
368
    void removeEventAction(KoEventAction *action);
369 370 371 372

    /**
     * Get all event actions
     */
373
    QSet<KoEventAction *> eventActions() const;
374

375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397
    /**
     * Return the side text should flow around this shape.
     */
    TextRunAroundSide textRunAroundSide() const;

    /**
     * Set the side text should flow around this shape.
     * @param side the requested side
     */
    void setTextRunAroundSide(TextRunAroundSide side, Through runThrought = Background);

    /**
     * The space between this shape's edge and text that runs around this shape.
     * @return the space around this shape to keep free from text
     */
    qreal textRunAroundDistance() const;

    /**
     * Set the space between this shape's edge and the text that run around this shape.
     * @param distance the space around this shape to keep free from text
     */
    void setTextRunAroundDistance(qreal distance);

Thomas Zander's avatar
Thomas Zander committed
398 399
    /**
     * Set the background of the shape.
400
     * A shape background can be a plain color, a gradient, a pattern, be fully transparent
Jan Hambrecht's avatar
Jan Hambrecht committed
401
     * or have a complex fill.
402
     * Setting such a background will allow the shape to be filled and will be able to tell
Jan Hambrecht's avatar
Jan Hambrecht committed
403 404
     * if it is transparent or not.
     * @param background the new shape background.
Thomas Zander's avatar
Thomas Zander committed
405
     */
406 407
    void setBackground(KoShapeBackground *background);

Thomas Zander's avatar
Thomas Zander committed
408 409
    /**
     * return the brush used to paint te background of this shape with.
410
     * A QBrush can have a plain color, be fully transparent or have a complex fill.
Thomas Zander's avatar
Thomas Zander committed
411
     * setting such a brush will allow the shape to fill itself using that brush and
412
     * will be able to tell if its transparent or not.
Thomas Zander's avatar
Thomas Zander committed
413 414
     * @return the background-brush
     */
415
    KoShapeBackground *background() const;
Thomas Zander's avatar
Thomas Zander committed
416 417

    /**
418 419
     * Returns true if there is some transparency, false if the shape is fully opaque.
     * The default implementation will just return if the background has some transparency,
Thomas Zander's avatar
Thomas Zander committed
420
     * you should override it and always return true if your shape is not square.
421
     * @return if the shape is (partly) transparent.
Thomas Zander's avatar
Thomas Zander committed
422
     */
Thomas Zander's avatar
Thomas Zander committed
423
    virtual bool hasTransparency() const;
Thomas Zander's avatar
Thomas Zander committed
424

425 426 427 428 429
    /**
     * Sets shape level transparency.
     * @param transparency the new shape level transparency
     */
    void setTransparency(qreal transparency);
430

431 432 433 434 435
    /**
     * Returns the shape level transparency.
     * @param recursive when true takes the parents transparency into account
     */
    qreal transparency(bool recursive=false) const;
436

Thomas Zander's avatar
Thomas Zander committed
437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452
    /**
     * Retrieve the z-coordinate of this shape.
     * The zIndex property is used to determine which shape lies on top of other objects.
     * An shape with a higher z-order is on top, and can obscure another shape.
     * @return the z-index of this shape.
     * @see setZIndex()
     */
    int zIndex() const;

    /**
     * Set the z-coordinate of this shape.
     * The zIndex property is used to determine which shape lies on top of other objects.
     * An shape with a higher z-order is on top, and can obscure, another shape.
     * <p>Just like two objects having the same x or y coordinate will make them 'touch',
     * so will two objects with the same z-index touch on the z plane.  In layering the
     * shape this, however, can cause a little confusion as one always has to be on top.
453
     * The layering if two overlapping objects have the same index is implementation dependent
Thomas Zander's avatar
Thomas Zander committed
454 455 456
     * and probably depends on the order in which they are added to the shape manager.
     * @param zIndex the new z-index;
     */
Thomas Zander's avatar
Thomas Zander committed
457
    void setZIndex(int zIndex);
Thomas Zander's avatar
Thomas Zander committed
458

459 460 461 462 463 464 465 466 467 468 469 470 471 472
    /**
     * Retrieve the run through property of this shape.
     * The run through property is used to determine if the shape is behind, inside or before text.
     * @return the run through of this shape.
     */
    int runThrough();

    /**
     * Set the run through property of this shape.
     * The run through property is used to determine if the shape is behind, inside or before text.
     * @param runThrough the new run through;
     */
    void setRunThrough(short int runThrough);

Thomas Zander's avatar
Thomas Zander committed
473 474
    /**
     * Changes the Shape to be visible or invisible.
475
     * Being visible means being painted, as well as being used for
Thomas Zander's avatar
Thomas Zander committed
476 477
     *   things like guidelines or searches.
     * @param on when true; set the shape to be visible.
478
     * @see setGeometryProtected(), setContentProtected(), setSelectable()
Thomas Zander's avatar
Thomas Zander committed
479
     */
Thomas Zander's avatar
Thomas Zander committed
480
    void setVisible(bool on);
Thomas Zander's avatar
Thomas Zander committed
481 482
    /**
     * Returns current visibility state of this shape.
483
     * Being visible means being painted, as well as being used for
Thomas Zander's avatar
Thomas Zander committed
484
     *   things like guidelines or searches.
485
     * @param recursive when true, checks visibility recursively
Thomas Zander's avatar
Thomas Zander committed
486
     * @return current visibility state of this shape.
487
     * @see isGeometryProtected(), isContentProtected(), isSelectable()
Thomas Zander's avatar
Thomas Zander committed
488
     */
489
    bool isVisible(bool recursive = false) const;
Thomas Zander's avatar
Thomas Zander committed
490

491 492 493 494 495
    /**
     * Changes the shape to be printable or not. The default is true.
     *
     * If a Shape's print flag is true, the shape will be printed. If
     * false, the shape will not be printed. If a shape is not visible (@see isVisible),
496
     * it isPrinted will return false, too.
497 498 499 500 501 502 503 504 505 506 507 508
     */
    void setPrintable(bool on);

    /**
     * Returns the current printable state of this shape.
     *
     * A shape can be visible but not printable, not printable and not visible
     * or visible and printable, but not invisible and still printable.
     *
     * @return current printable state of this shape.
     */
    bool isPrintable() const;
509

510 511 512
    /**
     * Makes it possible for the user to select this shape.
     * This parameter defaults to true.
Thomas Zander's avatar
Thomas Zander committed
513
     * @param selectable when true; set the shape to be selectable by the user.
514
     * @see setGeometryProtected(), setContentProtected(), setVisible()
515
     */
Thomas Zander's avatar
Thomas Zander committed
516
    void setSelectable(bool selectable);
517

518
    /**
Thomas Zander's avatar
Thomas Zander committed
519
     * Returns if this shape can be selected by the user.
520
     * @return true only when the object is selectable.
521
     * @see isGeometryProtected(), isContentProtected(), isVisible()
522
     */
Thomas Zander's avatar
Thomas Zander committed
523
    bool isSelectable() const;
524

Thomas Zander's avatar
Thomas Zander committed
525
    /**
526 527 528 529
     * Tells the shape to have its position/rotation and size protected from user-changes.
     * The geometry being protected means the user can not change shape or position of the
     * shape. This includes any matrix operation such as rotation.
     * @param on when true; set the shape to have its geometry protected.
530
     * @see setContentProtected(), setSelectable(), setVisible()
Thomas Zander's avatar
Thomas Zander committed
531
     */
532
    void setGeometryProtected(bool on);
533

Thomas Zander's avatar
Thomas Zander committed
534
    /**
535 536 537 538
     * Returns current geometry protection state of this shape.
     * The geometry being protected means the user can not change shape or position of the
     * shape. This includes any matrix operation such as rotation.
     * @return current geometry protection state of this shape.
539
     * @see isContentProtected(), isSelectable(), isVisible()
Thomas Zander's avatar
Thomas Zander committed
540
     */
541
    bool isGeometryProtected() const;
Thomas Zander's avatar
Thomas Zander committed
542

543 544 545 546
    /**
     * Marks the shape to have its content protected against editing.
     * Content protection is a hint for tools to disallow the user editing the content.
     * @param protect when true set the shapes content to be protected from user modification.
547
     * @see setGeometryProtected(), setSelectable(), setVisible()
548 549
     */
    void setContentProtected(bool protect);
550

551 552 553 554
    /**
     * Returns current content protection state of this shape.
     * Content protection is a hint for tools to disallow the user editing the content.
     * @return current content protection state of this shape.
555
     * @see isGeometryProtected(), isSelectable(), isVisible()
556 557 558
     */
    bool isContentProtected() const;

Thomas Zander's avatar
Thomas Zander committed
559 560 561 562
    /**
     * Returns the parent, or 0 if there is no parent.
     * @return the parent, or 0 if there is no parent.
     */
Thomas Zander's avatar
Thomas Zander committed
563
    KoShapeContainer *parent() const;
Thomas Zander's avatar
Thomas Zander committed
564 565 566 567 568 569 570 571 572 573 574 575 576 577

    /**
     * Set the parent of this shape.
     * @param parent the new parent of this shape. Can be 0 if the shape has no parent anymore.
     */
    void setParent(KoShapeContainer *parent);

    /**
     * Request a repaint to be queued.
     * The repaint will be of the entire Shape, including its selection handles should this
     * shape be selected.
     * <p>This method will return immediately and only request a repaint. Successive calls
     * will be merged into an appropriate repaint action.
     */
578
    virtual void update() const;
Thomas Zander's avatar
Thomas Zander committed
579 580 581 582 583 584 585 586

    /**
     * Request a repaint to be queued.
     * The repaint will be restricted to the parameters rectangle, which is expected to be
     * in points (the internal coordinates system of KoShape) and it is expected to be
     * normalized.
     * <p>This method will return immediately and only request a repaint. Successive calls
     * will be merged into an appropriate repaint action.
Boudewijn Rempt's avatar
Boudewijn Rempt committed
587
     * @param rect the rectangle (in pt) to queue for repaint.
Thomas Zander's avatar
Thomas Zander committed
588
     */
Boudewijn Rempt's avatar
Boudewijn Rempt committed
589
    virtual void update(const QRectF &rect) const;
Thomas Zander's avatar
Thomas Zander committed
590 591 592

    /**
     * This is a method used to sort a list using the STL sorting methods.
593 594
     * @param s1 the first shape
     * @param s2 the second shape
Thomas Zander's avatar
Thomas Zander committed
595
     */
596
    static bool compareShapeZIndex(KoShape *s1, KoShape *s2);
Thomas Zander's avatar
Thomas Zander committed
597 598 599 600 601 602 603 604

    /**
     * returns the outline of the shape in the form of a path.
     * The outline returned will always have the position() of the shape as the origin, so
     * moving the shape will not alter the result.  The outline is used to draw the border
     * on, for example.
     * @returns the outline of the shape in the form of a path.
     */
605
    virtual QPainterPath outline() const;
Thomas Zander's avatar
Thomas Zander committed
606

607 608 609 610 611 612 613 614
    /**
     * returns the outline of the shape in the form of a rect.
     * The outlineRect returned will always have the position() of the shape as the origin, so
     * moving the shape will not alter the result.  The outline is used to calculate the boundingRect.
     * @returns the outline of the shape in the form of a rect.
     */
    virtual QRectF outlineRect() const;

Thomas Zander's avatar
Thomas Zander committed
615 616 617 618
    /**
     * Returns the currently set border, or 0 if there is no border.
     * @return the currently set border, or 0 if there is no border.
     */
619
    KoShapeBorderModel *border() const;
Thomas Zander's avatar
Thomas Zander committed
620 621 622 623 624

    /**
     * Set a new border, removing the old one.
     * @param border the new border, or 0 if there should be no border.
     */
625
    void setBorder(KoShapeBorderModel *border);
Thomas Zander's avatar
Thomas Zander committed
626

627 628 629 630 631 632
    /**
     * Return the insets of the border.
     * Convenience method for KoShapeBorderModel::borderInsets()
     */
    KoInsets borderInsets() const;

633
    /// Sets the new shadow, removing the old one
634
    void setShadow(KoShapeShadow *shadow);
635

636
    /// Returns the currently set shadow or 0 if there is no shadow set
637
    KoShapeShadow *shadow() const;
638

Thomas Zander's avatar
Thomas Zander committed
639 640 641 642 643 644
    /**
     * Setting the shape to keep its aspect-ratio has the effect that user-scaling will
     * keep the width/hight ratio intact so as not to distort shapes that rely on that
     * ratio.
     * @param keepAspect the new value
     */
Thomas Zander's avatar
Thomas Zander committed
645
    void setKeepAspectRatio(bool keepAspect);
646

Thomas Zander's avatar
Thomas Zander committed
647 648 649 650 651 652
    /**
     * Setting the shape to keep its aspect-ratio has the effect that user-scaling will
     * keep the width/hight ratio intact so as not to distort shapes that rely on that
     * ratio.
     * @return whether to keep aspect ratio of this shape
     */
Thomas Zander's avatar
Thomas Zander committed
653
    bool keepAspectRatio() const;
Thomas Zander's avatar
Thomas Zander committed
654 655 656 657

    /**
     * Return the position of this shape regardless of rotation/skew/scaling and regardless of
     * this shape having a parent (being in a group) or not.<br>
658
     * @param anchor The place on the (unaltered) shape that you want the position of.
Thomas Zander's avatar
Thomas Zander committed
659 660
     * @return the point that is the absolute, centered position of this shape.
     */
Jan Hambrecht's avatar
Jan Hambrecht committed
661
    QPointF absolutePosition(KoFlake::Position anchor = KoFlake::CenteredPosition) const;
662

Thomas Zander's avatar
Thomas Zander committed
663 664 665 666 667 668 669 670 671 672 673 674
    /**
     * Move this shape to an absolute position where the end location will be the same
     * regardless of the shape's rotation/skew/scaling and regardless of this shape having
     * a parent (being in a group) or not.<br>
     * The newPosition is going to be the center of the shape.
     * This has the convenient effect that: <pre>
    shape-&gt;setAbsolutePosition(QPointF(0,0));
    shape-&gt;rotate(45);</pre>
        Will result in the same visual position of the shape as the opposite:<pre>
    shape-&gt;rotate(45);
    shape-&gt;setAbsolutePosition(QPointF(0,0));</pre>
     * @param newPosition the new absolute center of the shape.
Thomas Zander's avatar
Thomas Zander committed
675
     * @param anchor The place on the (unaltered) shape that you set the position of.
Thomas Zander's avatar
Thomas Zander committed
676
     */
Jan Hambrecht's avatar
Jan Hambrecht committed
677
    void setAbsolutePosition(QPointF newPosition, KoFlake::Position anchor = KoFlake::CenteredPosition);
Thomas Zander's avatar
Thomas Zander committed
678

679 680
    /**
     * Set a data object on the shape to be used by an application.
681
     * This is specifically useful when a shape is created in a plugin and that data from that
682 683 684 685 686 687 688 689 690
     * shape should be accessible outside the plugin.
     * @param userData the new user data, or 0 to delete the current one.
     */
    void setUserData(KoShapeUserData *userData);
    /**
     * Return the current userData.
     */
    KoShapeUserData *userData() const;

691 692 693 694 695 696 697
    /**
     * Set a data object on the shape to be used by an application.
     * This is specifically useful when an application wants to have data that is per shape
     * and should be deleted when the shape is destructed.
     * @param applicationData the new application data, or 0 to delete the current one.
     */
    void setApplicationData(KoShapeApplicationData *applicationData);
698

699 700 701 702 703
    /**
     * Return the current applicationData.
     */
    KoShapeApplicationData *applicationData() const;

704
    /**
Marijn Kruisselbrink's avatar
Marijn Kruisselbrink committed
705
     * Return the Id of this shape, identifying the type of shape by the id of the factory.
706
     * @see KoShapeFactoryBase::shapeId()
707 708
     * @return the id of the shape-type
     */
709 710
    QString shapeId() const;

711 712 713
    /**
     * Set the Id of this shape.  A shapeFactory is expected to set the Id at creation
     * so applications can find out what kind of shape this is.
714
     * @see KoShapeFactoryBase::shapeId()
715 716
     * @param id the ID from the factory that created this shape
     */
Thomas Zander's avatar
Thomas Zander committed
717
    void setShapeId(const QString &id);
718

Thomas Zander's avatar
Thomas Zander committed
719 720
    /**
     * Create a matrix that describes all the transformations done on this shape.
721 722 723 724
     *
     * The absolute transformation is the combined transformation of this shape
     * and all its parents and grandparents.
     *
Thomas Zander's avatar
Thomas Zander committed
725 726 727
     * @param converter if not null, this method uses the converter to mark the right
     *        offsets in the current view.
     */
728
    QTransform absoluteTransformation(const KoViewConverter *converter) const;
Thomas Zander's avatar
Thomas Zander committed
729

730 731 732 733
    /**
     * Applies a transformation to this shape.
     *
     * The transformation given is relative to the global coordinate system, i.e. the document.
734 735
     * This is a convenience function to apply a global transformation to this shape.
     * @see applyTransformation
736 737 738
     *
     * @param matrix the transformation matrix to apply
     */
739
    void applyAbsoluteTransformation(const QTransform &matrix);
740 741 742 743 744

    /**
     * Sets a new transformation matrix describing the local transformations on this shape.
     * @param matrix the new transformation matrix
     */
745
    void setTransformation(const QTransform &matrix);
746

747
    /// Returns the shapes local transformation matrix
748
    QTransform transformation() const;
749 750 751 752 753 754 755 756

    /**
     * Applies a transformation to this shape.
     *
     * The transformation given is relative to the shape coordinate system.
     *
     * @param matrix the transformation matrix to apply
     */
757
    void applyTransformation(const QTransform &matrix);
758

Thomas Zander's avatar
Thomas Zander committed
759 760 761 762 763 764
    /**
     * Copy all the settings from the parameter shape and apply them to this shape.
     * Settings like the position and rotation to visible and locked.  The parent
     * is a notable exclusion.
     * @param shape the shape to use as original
     */
Thomas Zander's avatar
Thomas Zander committed
765
    void copySettings(const KoShape *shape);
Thomas Zander's avatar
Thomas Zander committed
766

Thomas Zander's avatar
Thomas Zander committed
767 768 769 770 771 772 773 774 775
    /**
     * Convenience method that allows people implementing paint() to use the shape
     * internal coordinate system directly to paint itself instead of considering the
     * views zoom.
     * @param painter the painter to alter the zoom level of.
     * @param converter the converter for the current views zoom.
     */
    static void applyConversion(QPainter &painter, const KoViewConverter &converter);

776 777 778 779 780
    /**
     * @brief Transforms point from shape coordinates to document coordinates
     * @param point in shape coordinates
     * @return point in document coordinates
     */
781
    QPointF shapeToDocument(const QPointF &point) const;
782 783 784 785 786 787

    /**
     * @brief Transforms rect from shape coordinates to document coordinates
     * @param rect in shape coordinates
     * @return rect in document coordinates
     */
788
    QRectF shapeToDocument(const QRectF &rect) const;
789 790 791 792 793 794

    /**
     * @brief Transforms point from document coordinates to shape coordinates
     * @param point in document coordinates
     * @return point in shape coordinates
     */
795
    QPointF documentToShape(const QPointF &point) const;
796 797 798 799 800 801

    /**
     * @brief Transform rect from document coordinates to shape coordinates
     * @param rect in document coordinates
     * @return rect in shape coordinates
     */
802
    QRectF documentToShape(const QRectF &rect) const;
803

804 805 806 807
    /**
     * Returns the name of the shape.
     * @return the shapes name
     */
808
    QString name() const;
809 810 811 812 813

    /**
     * Sets the name of the shape.
     * @param name the new shape name
     */
814
    void setName(const QString &name);
815

816 817 818 819 820
    /**
     * Update the position of the shape in the tree of the KoShapeManager.
     */
    void notifyChanged();

821
    /**
Thomas Zander's avatar
Thomas Zander committed
822
     * A shape can be in a state that it is doing processing data like loading or text layout.
823
     * In this case it can be shown on screen probably partially but it should really not be printed
Thomas Zander's avatar
Thomas Zander committed
824
     * until it is fully done processing.
825
     * Warning! This method can be blocking for a long time
Boudewijn Rempt's avatar
Boudewijn Rempt committed
826 827 828
     * @param asynchronous If set to true the processing will can take place in a different thread and the
     *                     function will not block until the shape is finised.
     *                     In case of printing Flake will call this method from a non-main thread and only
829
     *                     start printing it when the in case of printing method returned.
Boudewijn Rempt's avatar
Boudewijn Rempt committed
830
     *                     If set to false the processing needs to be done synchronously and will
831 832 833
     *                     block until the result is finished.
     */
    virtual void waitUntilReady(const KoViewConverter &converter, bool asynchronous = true) const;
834

Thomas Zander's avatar
api dox  
Thomas Zander committed
835 836 837
    /**
     * Schedule the shape for thread-safe deletion.
     * After calling this method will self-delete in the main threads event loop.
Thomas Zander's avatar
Thomas Zander committed
838 839 840 841
     * If your code deletes a shape and your code can possibly be running in a separate thread,
     * you should use this method to delete the shape.
     * The reason for this is that If you delete a shape from another thread then it is
     * possible the main
Thomas Zander's avatar
api dox  
Thomas Zander committed
842
     * thread will use it after its been removed, while painting for example.
Thomas Zander's avatar
Thomas Zander committed
843 844
     *
     * Note that in contrary to the equivalent method on QObject, you can not call this more than once.
Thomas Zander's avatar
api dox  
Thomas Zander committed
845
     */
846
    void deleteLater();
847

848 849 850
    /// checks recursively if the shape or one of its parents is not visible or locked
    bool isEditable() const;

851 852
    /**
     * Adds a shape which depends on this shape.
853 854
     * Making a shape dependent on this one means it will get shapeChanged() called
     * on each update of this shape.
855 856 857 858 859
     *
     * If this shape already depends on the given shape, establishing the
     * dependency is refused to prevent circular dependencies.
     *
     * @param shape the shape which depends on this shape
860 861
     * @return true if dependency could be established, otherwise false
     * @see removeDependee(), hasDependee()
862
     */
863
    bool addDependee(KoShape *shape);
864

865 866 867 868
    /**
     * Removes as shape depending on this shape.
     * @see addDependee(), hasDependee()
     */
869
    void removeDependee(KoShape *shape);
870

871
    /// Returns if the given shape is dependent on this shape
872
    bool hasDependee(KoShape *shape) const;
873

874 875 876
    /// Returns additional snap data the shape wants to have snapping to
    virtual KoSnapData snapData() const;

877 878 879 880 881 882 883 884 885
    /**
     * Set additional attribute
     *
     * This can be used to attach additional attributes to a shape for attributes
     * that are application specific like presentation:placeholder
     *
     * @param name The name of the attribute in the following form prefix:tag e.g. presentation:placeholder
     * @param value The value of the attribute
     */
886
    void setAdditionalAttribute(const QString &name, const QString &value);
887 888 889 890 891 892

    /**
     * Remove additional attribute
     *
     * @param name The name of the attribute in the following form prefix:tag e.g. presentation:placeholder
     */
893
    void removeAdditionalAttribute(const QString &name);
894 895 896 897 898 899 900 901

    /**
     * Check if additional attribute is set
     *
     * @param name The name of the attribute in the following form prefix:tag e.g. presentation:placeholder
     *
     * @return true if there is a attribute with prefix:tag set, false otherwise
     */
902
    bool hasAdditionalAttribute(const QString &name) const;
903 904 905 906 907 908 909 910

    /**
     * Get additional attribute
     *
     * @param name The name of the attribute in the following form prefix:tag e.g. presentation:placeholder
     *
     * @return The value of the attribute if it exists or a null string if not found.
     */
911
    QString additionalAttribute(const QString &name) const;
912

913
    void setAdditionalStyleAttribute(const char *name, const QString &value);
914

915
    void removeAdditionalStyleAttribute(const char *name);
916

917
    /**
918
     * Returns the filter effect stack of the shape
919 920 921
     *
     * @return the list of filter effects applied on the shape when rendering.
     */
922
    KoFilterEffectStack *filterEffectStack() const;
923

924
    /// Sets the new filter effect stack, removing the old one
925
    void setFilterEffectStack(KoFilterEffectStack *filterEffectStack);
926

927 928 929 930 931 932 933 934 935 936 937 938 939 940
    /**
     * Set the property collision detection.
     * Setting this to true will result in calls to shapeChanged() with the CollisionDetected
     * parameter whenever either this or another shape is moved/rotated etc and intersects this shape.
     * @param detect if true detect collisions.
     */
    void setCollisionDetection(bool detect);

    /**
     * get the property collision detection.
     * @returns true if collision detection is on.
     */
    bool collisionDetection();

941 942 943 944 945 946
    /**
     * Return the tool delegates for this shape.
     * In Flake a shape being selected will cause the tool manager to make available all tools that
     * can edit the selected shapes.  In some cases selecting one shape should allow the tool to
     * edit a related shape be available too.  The tool delegates allows this to happen by taking
     * all the shapes in the set into account on tool selection.
Thomas Zander's avatar
Thomas Zander committed
947
     * Notice that if the set is non-empty 'this' shape is no longer looked at. You can choose
948 949 950 951 952 953 954 955 956 957 958
     * to add itself to the set too.
     */
    QSet<KoShape*> toolDelegates() const;

    /**
     * Set the tool delegates.
     * @param delegates the new delegates.
     * @see toolDelegates()
     */
    void setToolDelegates(const QSet<KoShape*> &delegates);

959 960 961 962 963 964 965 966 967 968 969
    /**
     * Return the hyperlink for this shape.
     */
    QString hyperLink () const;

    /**
     * Set hyperlink for this shape.
     * @param hyperLink name.
     */
    void setHyperLink (QString & hyperLink);

970 971
    /**
     * \internal
Marijn Kruisselbrink's avatar
Marijn Kruisselbrink committed
972
     * Returns the private object for use within the flake lib
973 974 975
     */
    KoShapePrivate *priv();

Boudewijn Rempt's avatar
Boudewijn Rempt committed
976 977 978 979 980 981 982 983 984 985 986
    /**
     * Returns the cache mode for this shape. The default mode is NoCache (i.e.,
     * cache is disabled and all painting is immediate).
     */
    CacheMode cacheMode() const;

    /**
     * Set the shape's cache mode to @param mode.
     */
    void setCacheMode(CacheMode cacheMode);

987
protected:
988 989
    /// constructor
    KoShape(KoShapePrivate &);
990

991
    /* ** loading saving helper methods */
992 993
    /// attributes from ODF 1.1 chapter 9.2.15 Common Drawing Shape Attributes
    enum OdfAttribute {
994 995
        OdfTransformation = 1,       ///< Store transformation information
        OdfSize = 2,                 ///< Store size information
996 997 998 999 1000 1001 1002 1003
        OdfPosition = 8,             ///< Store position
        OdfAdditionalAttributes = 4, ///< Store additional attributes of the shape
        OdfCommonChildElements = 16, ///< Event actions and connection points
        OdfLayer = 64,               ///< Store layer name
        OdfStyle = 128,              ///< Store the style
        OdfId = 256,                 ///< Store the unique ID
        OdfName = 512,               ///< Store the name of the shape
        OdfZIndex = 1024,            ///< This only loads the z-index; when saving, it is reflected by the order of the shapes.
1004
        OdfViewbox = 2048,           ///< Store the viewbox
1005 1006 1007 1008 1009

        /// A mask for all mandatory attributes
        OdfMandatories = OdfLayer | OdfStyle | OdfId | OdfName | OdfZIndex,
        /// A mask for geometry attributes
        OdfGeometry = OdfPosition | OdfSize,
1010
        /// A mask for all the attributes
1011
        OdfAllAttributes = OdfTransformation | OdfGeometry | OdfAdditionalAttributes | OdfMandatories | OdfCommonChildElements
1012
    };
1013

1014 1015 1016 1017 1018 1019 1020
    /**
     * This method is used during loading of the shape to load common attributes
     *
     * @param context the KoShapeLoadingContext used for loading
     * @param element element which represents the shape in odf
     * @param attributes a number of OdfAttribute items to state which attributes to load.
     */
1021
    bool loadOdfAttributes(const KoXmlElement &element, KoShapeLoadingContext &context, int attributes);
1022

Jan Hambrecht's avatar
 
Jan Hambrecht committed
1023 1024 1025 1026 1027
    /**
     * Parses the transformation attribute from the given string
     * @param transform the transform attribute string
     * @return the resulting transformation matrix
     */
1028
    QTransform parseOdfTransform(const QString &transform);
Jan Hambrecht's avatar
 
Jan Hambrecht committed
1029

1030
    /**
1031
     * @brief Saves the style used for the shape
1032
     *
1033 1034
     * This method fills the given style object with the border and
     * background properties and then adds the style to the context.
1035
     *
1036
     * @param style the style object to fill
1037 1038 1039
     * @param context used for saving
     * @return the name of the style
     * @see saveOdf
1040
     */
1041
    virtual QString saveStyle(KoGenStyle &style, KoShapeSavingContext &context) const;
1042 1043 1044 1045 1046 1047 1048

    /**
     * Loads the stroke and fill style from the given element.
     *
     * @param element the xml element to  load the style from
     * @param context the loading context used for loading
     */
1049
    virtual void loadStyle(const KoXmlElement &element, KoShapeLoadingContext &context);
1050

1051
    /// Loads the stroke style
1052
    KoShapeBorderModel *loadOdfStroke(const KoXmlElement &element, KoShapeLoadingContext &context) const;
1053

1054
    /// Loads the shadow style
1055
    KoShapeBackground *loadOdfFill(KoShapeLoadingContext &context) const;
1056

1057 1058 1059
    /// Loads the connection points
    void loadOdfGluePoints(const KoXmlElement &element, KoShapeLoadingContext &context);

1060
    /* ** end loading saving */
1061

1062 1063 1064 1065 1066
    /**
     * A hook that allows inheriting classes to do something after a KoShape property changed
     * This is called whenever the shape, position rotation or scale properties were altered.
     * @param type an indicator which type was changed.
     */
1067
    virtual void shapeChanged(ChangeType type, KoShape *shape = 0);
1068

Thomas Zander's avatar
Thomas Zander committed
1069
    /// return the current matrix that contains the rotation/scale/position of this shape
1070
    QTransform transform() const;
1071

Boudewijn Rempt's avatar
Boudewijn Rempt committed
1072 1073

    friend class KoShapeManagerCachedPaintingStrategy;
1074 1075
    KoShapePrivate *d_ptr;

Thomas Zander's avatar
Thomas Zander committed
1076
private:
1077
    Q_DECLARE_PRIVATE(KoShape)
Thomas Zander's avatar
Thomas Zander committed
1078 1079
};

1080 1081
Q_DECLARE_METATYPE(KoShape*)

Thomas Zander's avatar
Thomas Zander committed
1082
#endif