NeXTSTEP 3.1 (Developer) [x86]/NeXT Step 3.1 Intel dev.cdr.dmg/NextDeveloper/Examples/AppKit/Draw/graphicsUndo.subproj/ChangeDetail.h

Text File | 1992-03-15 | 3KB | 157 lines

/*
 * Please refer to external documentation about Draw
 * with Undo for information about what ChangeDetails
 * are and where they fit in.
 *
 * The ChangeDetail.h and ChangeDetail.m files contain
 * the @interfaces and @implementations for the 11
 * subclasses of ChangeDetail, as well as for ChangeDetail
 * itself. We grouped all the classes into one pair of
 * files because the classes are so tiny and their behavior
 * is so similar.
 *
 * ChangeDetail
 *     ArrowChangeDetail
 *     DimensionsChangeDetail
 *     FillColorChangeDetail
 *     FillModeChangeDetail
 *     LineCapChangeDetail
 *     LineColorChangeDetail
 *     LineJoinChangeDetail
 *     LineWidthChangeDetail
 *     MoveChangeDetail
 *     OrderChangeDetail
 *
 */

@interface ChangeDetail : Object
{
    Graphic    *graphic;     /* the Graphic that we serve */
    id        change;         /* the Change object that we belong to */
    List    *detailsDetails; /* If the Graphic that this ChangeDetail
                      * serves is a Group then detailsDetails
                  * is used to keep track of the
                  * ChangeDetails that serve the component
                  * Graphics of the Group.
                  */
    BOOL    changeExpected;
}

- initGraphic:aGraphic change:aChange;
- free;
- graphic;
- (BOOL)useNestedDetails;
- (BOOL)changeExpected;
- recordDetail;
- undoDetail;
- redoDetail;
- recordIt;
- undoIt;
- redoIt;

@end

@interface ArrowChangeDetail : ChangeDetail
{
    int        oldLineArrow;
}

- recordIt;
- undoIt;
- redoIt;

@end

@interface DimensionsChangeDetail : ChangeDetail
{
    NXRect     oldBounds;
    NXRect     newBounds;
}

- (BOOL)useNestedDetails;
- recordDetail;
- undoDetail;
- redoDetail;

@end

@interface FillChangeDetail : ChangeDetail
{
    NXColor    oldFillColor;
    int        oldFillMode;
    NXColor    newFillColor;
    int        newFillMode;
}

- recordIt;
- undoIt;
- redoIt;

@end

@interface LineCapChangeDetail : ChangeDetail
{
    int        oldLineCap;
}

- recordIt;
- undoIt;
- redoIt;

@end

@interface LineColorChangeDetail : ChangeDetail
{
    NXColor    oldColor;
    BOOL    oldIsOutlined;
}

- recordIt;
- undoIt;
- redoIt;

@end

@interface LineJoinChangeDetail : ChangeDetail
{
    int        oldLineJoin;
}

- recordIt;
- undoIt;
- redoIt;

@end

@interface LineWidthChangeDetail : ChangeDetail
{
    float    oldLineWidth;
}

- recordIt;
- undoIt;
- redoIt;

@end

@interface MoveChangeDetail : ChangeDetail
{
}

- (BOOL)useNestedDetails;
- undoDetail;
- redoDetail;

@end

@interface OrderChangeDetail : ChangeDetail
{
    unsigned    graphicPosition;
}

- (BOOL)useNestedDetails;
- recordGraphicPositionIn:graphicList;
- (unsigned)graphicPosition;

@end