pagebackgrounditem.cpp

/****************************************************************************
**
** Copyright (C) 2007-2009 Kevin Clague. All rights reserved.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

/****************************************************************************
 *
 * This file represents the page background and is derived from the generic
 * background class described in background.(h,cpp)
 *
 * Please see lpub.h for an overall description of how the files in LPub
 * make up the LPub program.
 *
 ***************************************************************************/

#include "pagebackgrounditem.h"
#include <QAction>
#include <QMenu>
#include <QGraphicsSceneContextMenuEvent>
#include <QFileDialog>
#include "commonmenus.h"
#include "ranges_element.h"
#include "range.h"
#include "range_element.h"
#include "step.h"
#include "lpub.h"

void PageBackgroundItem::contextMenuEvent(QGraphicsSceneContextMenuEvent *event)
{
  QMenu menu;

  // figure out if first step step number is greater than 1

  QAction *addNextAction = NULL;
  QAction *addPrevAction = NULL;
  QAction *calloutAction = NULL;
  QAction *assembledAction = NULL;
  QAction *ignoreAction = NULL;
  QAction *partAction = NULL;
  Step      *lastStep = NULL;
  Step      *firstStep = NULL;

  if (page->list.size()) {
    AbstractStepsElement *range = page->list[page->list.size()-1];
    if (range->relativeType == RangeType) {
      AbstractRangeElement *rangeElement = range->list[range->list.size()-1];
      if (rangeElement->relativeType == StepType) {
        lastStep = dynamic_cast<Step *> (rangeElement);
        MetaItem mi;
        int numSteps = mi.numSteps(lastStep->topOfStep().modelName);
        if (lastStep->stepNumber.number != numSteps) {
          addNextAction = menu.addAction("Add Next Step");
          addNextAction->setWhatsThis("Add Next Step:\n Add the first step of the next page to this page\n");
        }
      }
    }

    // figure out if first step step number is greater than 1

    range = page->list[0];
    if (range->relativeType == RangeType) {
      AbstractRangeElement *rangeElement = range->list[0];
      if (rangeElement->relativeType == StepType) {
        firstStep = dynamic_cast<Step *> (rangeElement);
        if (firstStep->stepNumber.number > 1) {
          addPrevAction = menu.addAction("Add Previous Step");
          addPrevAction->setWhatsThis("Add Previous Step:\n Add the last step of the previous page to this page\n");
        }
      }
    }

    if (page->meta.submodelStack.size() > 0) {
      calloutAction = menu.addAction("Convert to Callout");
      calloutAction->setWhatsThis("Convert to Callout:\n"
        "  A callout shows how to build these steps in a picture next\n"
        "  to where it is added to the set you are building");

      // FIXME: don't allow this it is already got an assembled.
      if (canConvertToCallout(&page->meta)) {
        assembledAction = menu.addAction("Add Assembled Image to Parent Page");
        assembledAction->setWhatsThis("Add Assembled Image to Parent Page\n"
          "  A callout like image is added to the page where this submodel\n"
          "  is added to the set you are building");
      }

      ignoreAction  = menu.addAction("Ignore this submodel");
      ignoreAction->setWhatsThis("Stops these steps from showing up in your instructions");

      partAction = menu.addAction("Treat as Part");
      partAction->setWhatsThis("Treating this submodel as a part means these steps go away, "
                               "and the submodel is displayed as a part in the parent step's "
                               "part list image.");
    }

    QAction *selectedAction     = menu.exec(event->screenPos());

    if (selectedAction == NULL) {
      return;
    }

    if (selectedAction == calloutAction) {
      convertToCallout(&page->meta, page->bottom.modelName, page->isMirrored, false);
    } else if (selectedAction == assembledAction) {
      convertToCallout(&page->meta, page->bottom.modelName, page->isMirrored, true);
    } else if (selectedAction == ignoreAction) {
      convertToIgnore(&page->meta);
    } else if (selectedAction == partAction) {
      convertToPart(&page->meta);

    } else if (selectedAction == addNextAction) {
      addNextMultiStep(lastStep->topOfSteps(),lastStep->bottomOfSteps());
    } else if (selectedAction == addPrevAction) {
      addPrevMultiStep(firstStep->topOfSteps(),firstStep->bottomOfSteps());
    }
  }
}