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ktechlab/src/itemdocument.cpp

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/***************************************************************************
* Copyright (C) 2005 by David Saxton *
* david@bluehaze.org *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#include "canvasmanipulator.h"
#include "circuitdocument.h"
#include "connector.h"
#include "cnitem.h"
#include "drawpart.h"
#include "ecnode.h"
#include "flowcodedocument.h"
#include "icnview.h"
#include "itemdocumentdata.h"
#include "itemgroup.h"
#include "itemselector.h"
#include "ktechlab.h"
#include "core/ktlconfig.h"
#include "pin.h"
#include "simulator.h"
#include <kapplication.h>
#include <kdebug.h>
#include <kfiledialog.h>
#include <kiconloader.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <kpopupmenu.h>
#include <kprinter.h>
#include <qcheckbox.h>
#include <qclipboard.h>
#include <qcursor.h>
#include <qimage.h>
#include <qpaintdevicemetrics.h>
#include <qpainter.h>
#include <qpicture.h>
#include <qregexp.h>
#include <qsimplerichtext.h>
#include <qtimer.h>
#include <cmath>
//BEGIN class ItemDocument
int ItemDocument::m_nextActionTicket = 0;
ItemDocument::ItemDocument( const QString &caption, KTechlab *ktechlab, const char *name)
: Document( caption, ktechlab, name )
{
m_queuedEvents = 0;
p_ktechlab = ktechlab;
m_nextIdNum = 1;
m_savedState = 0l;
m_currentState = 0l;
m_bIsLoading = false;
m_canvas = new Canvas( this, "canvas" );
m_canvasTip = new CanvasTip(this,m_canvas);
m_cmManager = new CMManager(this);
m_undoStack.setAutoDelete(true);
m_redoStack.setAutoDelete(true);
updateBackground();
m_canvas->resize( 0, 0 );
m_canvas->setDoubleBuffering(true);
m_pEventTimer = new QTimer(this);
connect( m_pEventTimer, SIGNAL(timeout()), this, SLOT(processItemDocumentEvents()) );
connect( this, SIGNAL(itemSelected(Item*)), this, SLOT(slotInitItemActions(Item*)) );
connect( this, SIGNAL(itemUnselected(Item*)), this, SLOT(slotInitItemActions(Item*)) );
connect( ComponentSelector::self(), SIGNAL(itemClicked(const QString& )), this, SLOT(slotUnsetRepeatedItemId()) );
connect( FlowPartSelector::self(), SIGNAL(itemClicked(const QString& )), this, SLOT(slotUnsetRepeatedItemId()) );
#ifdef MECHANICS
connect( MechanicsSelector::self(), SIGNAL(itemClicked(const QString& )), this, SLOT(slotUnsetRepeatedItemId()) );
#endif
m_pAlignmentAction = new KActionMenu( i18n("Alignment"), "rightjust", this );
slotUpdateConfiguration();
}
ItemDocument::~ItemDocument()
{
m_bDeleted = true;
ItemList toDelete = m_itemList;
const ItemList::iterator end = toDelete.end();
for ( ItemList::iterator it = toDelete.begin(); it != end; ++it )
delete *it;
delete m_cmManager;
m_cmManager = 0l;
delete m_currentState;
m_currentState = 0l;
delete m_canvasTip;
m_canvasTip = 0l;
}
void ItemDocument::handleNewView( View * view )
{
Document::handleNewView(view);
requestEvent( ItemDocument::ItemDocumentEvent::ResizeCanvasToItems );
}
bool ItemDocument::registerItem( QCanvasItem *qcanvasItem )
{
if (!qcanvasItem)
return false;
requestEvent( ItemDocument::ItemDocumentEvent::ResizeCanvasToItems );
switch (qcanvasItem->rtti())
{
case ItemDocument::RTTI::DrawPart:
case ItemDocument::RTTI::CNItem:
{
Item *item = dynamic_cast<Item*>(qcanvasItem);
m_itemList.append(item);
connect( item, SIGNAL(removed(Item*)), this, SLOT(requestRerouteInvalidatedConnectors()) );
connect( item, SIGNAL(selected(Item*,bool)), this, SIGNAL(itemSelected(Item*)) );
connect( item, SIGNAL(unselected(Item*,bool)), this, SIGNAL(itemUnselected(Item*)) );
itemAdded(item);
return true;
}
default:
return false;
}
}
void ItemDocument::slotSetDrawAction( int drawAction )
{
m_cmManager->setDrawAction(drawAction);
}
void ItemDocument::cancelCurrentOperation()
{
m_cmManager->cancelCurrentManipulation();
}
void ItemDocument::slotSetRepeatedItemId( const QString &id )
{
m_cmManager->setCMState( CMManager::cms_repeated_add, true );
m_cmManager->setRepeatedAddId(id);
}
void ItemDocument::slotUnsetRepeatedItemId()
{
m_cmManager->setCMState( CMManager::cms_repeated_add, false );
}
void ItemDocument::fileSave()
{
if ( url().isEmpty() && !getURL(m_fileExtensionInfo) ) return;
writeFile();
}
void ItemDocument::fileSaveAs()
{
if ( !getURL(m_fileExtensionInfo) ) return;
writeFile();
// Our modified state may not have changed, but we emit this to force the
// main window to update our caption.
emit modifiedStateChanged();
}
void ItemDocument::writeFile()
{
ItemDocumentData data( type() );
data.saveDocumentState(this);
if ( data.saveData(url()) )
{
m_savedState = m_currentState;
setModified(false);
}
}
bool ItemDocument::openURL( const KURL &url )
{
ItemDocumentData data( type() );
if ( !data.loadData(url) )
return false;
// Why do we stop simulating while loading a document?
// Crash possible when loading a circuit document, and the Qt event loop is
// reentered (such as when a PIC component pops-up a message box), which
// will then call the Simulator::step function, which might use components
// that have not fully initialized themselves.
m_bIsLoading = true;
bool wasSimulating = Simulator::self()->isSimulating();
Simulator::self()->slotSetSimulating( false );
data.restoreDocument(this);
Simulator::self()->slotSetSimulating( wasSimulating );
m_bIsLoading = false;
setURL(url);
clearHistory();
m_savedState = m_currentState;
setModified(false);
if ( FlowCodeDocument *fcd = dynamic_cast<FlowCodeDocument*>(this) )
{
// We need to tell all pic-depedent components about what pic type is in use
emit fcd->picTypeChanged();
}
requestEvent( ItemDocument::ItemDocumentEvent::ResizeCanvasToItems );
// Load Z-position info
m_zOrder.clear();
ItemList::iterator end = m_itemList.end();
for ( ItemList::iterator it = m_itemList.begin(); it != end; ++it )
{
if ( !*it || (*it)->parentItem() )
continue;
m_zOrder[(*it)->baseZ()] = *it;
}
slotUpdateZOrdering();
return true;
}
void ItemDocument::print()
{
static KPrinter * printer = new KPrinter;
if ( ! printer->setup( p_ktechlab ) )
return;
// setup the printer. with Qt, you always "print" to a
// QPainter.. whether the output medium is a pixmap, a screen,
// or paper
QPainter p;
p.begin( printer );
// we let our view do the actual printing
QPaintDeviceMetrics metrics( printer );
// Round to 16 (= 2 * 8) so that we cut in the middle of squares
int w = 16*int(metrics.width()/16);
int h = 16*int(metrics.height()/16);
p.setClipping( true );
p.setClipRect( 0, 0, w, h, QPainter::CoordPainter );
// Send off the painter for drawing
m_canvas->setBackgroundPixmap( 0 );
QRect bounding = canvasBoundingRect();
unsigned int rows = (unsigned) std::ceil( double( bounding.height() ) / double( h ) );
unsigned int cols = (unsigned) std::ceil( double( bounding.width() ) / double( w ) );
int offset_x = bounding.x();
int offset_y = bounding.y();
for ( unsigned row = 0; row < rows; ++row )
{
for ( unsigned col = 0; col < cols; ++col )
{
if ( row != 0 || col != 0 )
printer->newPage();
QRect drawArea( offset_x + (col * w), offset_y + (row * h), w, h );
m_canvas->drawArea( drawArea, & p );
p.translate( -w, 0 );
}
p.translate( w * cols, -h );
}
updateBackground();
// and send the result to the printer
p.end();
}
void ItemDocument::requestStateSave( int actionTicket )
{
if ( m_bIsLoading )
return;
m_redoStack.clear();
if ( (actionTicket >= 0) && (actionTicket == m_currentActionTicket) )
{
delete m_currentState;
m_currentState = 0l;
}
m_currentActionTicket = actionTicket;
if (m_currentState)
m_undoStack.push(m_currentState);
m_currentState = new ItemDocumentData( type() );
m_currentState->saveDocumentState(this);
if (!m_savedState)
m_savedState = m_currentState;
setModified( m_savedState != m_currentState );
emit undoRedoStateChanged();
//FIXME To resize undo queue, have to pop and push everything
int maxUndo = KTLConfig::maxUndo();
if ( maxUndo <= 0 || m_undoStack.count() < (unsigned)maxUndo )
return;
IDDStack tempStack;
int pushed = 0;
while ( !m_undoStack.isEmpty() && pushed < maxUndo )
{
tempStack.push( m_undoStack.pop() );
pushed++;
}
m_undoStack.clear();
while ( !tempStack.isEmpty() )
m_undoStack.push( tempStack.pop() );
}
void ItemDocument::clearHistory()
{
m_undoStack.clear();
m_redoStack.clear();
delete m_currentState;
m_currentState = 0l;
requestStateSave();
}
bool ItemDocument::isUndoAvailable() const
{
return !m_undoStack.isEmpty();
}
bool ItemDocument::isRedoAvailable() const
{
return !m_redoStack.isEmpty();
}
void ItemDocument::undo()
{
ItemDocumentData *idd = m_undoStack.pop();
if (!idd)
return;
if (m_currentState)
m_redoStack.push(m_currentState);
idd->restoreDocument(this);
m_currentState = idd;
setModified( m_savedState != m_currentState );
emit undoRedoStateChanged();
}
void ItemDocument::redo()
{
ItemDocumentData *idd = m_redoStack.pop();
if (!idd)
return;
if (m_currentState)
m_undoStack.push(m_currentState);
idd->restoreDocument(this);
m_currentState = idd;
setModified( m_savedState != m_currentState );
emit undoRedoStateChanged();
}
void ItemDocument::cut()
{
copy();
deleteSelection();
}
void ItemDocument::paste()
{
QString xml = KApplication::clipboard()->text( QClipboard::Clipboard );
if ( xml.isEmpty() )
return;
unselectAll();
ItemDocumentData data( type() );
data.fromXML(xml);
data.generateUniqueIDs(this);
data.translateContents( 64, 64 );
data.mergeWithDocument( this, true );
// Get rid of any garbage that shouldn't be around / merge connectors / etc
flushDeleteList();
requestStateSave();
}
Item *ItemDocument::itemWithID( const QString &id )
{
const ItemList::iterator end = m_itemList.end();
for ( ItemList::iterator it = m_itemList.begin(); it != end; ++it )
{
if ( (*it)->id() == id )
return *it;
}
return 0L;
}
void ItemDocument::unselectAll()
{
selectList()->removeAllItems();
}
void ItemDocument::select( QCanvasItem * item )
{
if (!item)
return;
item->setSelected( selectList()->contains( item ) || selectList()->addQCanvasItem( item ) );
}
void ItemDocument::select( const QCanvasItemList & list )
{
const QCanvasItemList::const_iterator end = list.end();
for ( QCanvasItemList::const_iterator it = list.begin(); it != end; ++it )
selectList()->addQCanvasItem(*it);
selectList()->setSelected(true);
}
void ItemDocument::unselect( QCanvasItem *qcanvasItem )
{
selectList()->removeQCanvasItem(qcanvasItem);
qcanvasItem->setSelected(false);
}
void ItemDocument::slotUpdateConfiguration()
{
updateBackground();
m_canvas->setUpdatePeriod( int(1000./KTLConfig::refreshRate()) );
}
QCanvasItem* ItemDocument::itemAtTop( const QPoint &pos ) const
{
QCanvasItemList list = m_canvas->collisions( QRect( pos.x()-1, pos.y()-1, 3, 3 ) );
QCanvasItemList::const_iterator it = list.begin();
const QCanvasItemList::const_iterator end = list.end();
while ( it != end )
{
QCanvasItem *item = *it;
if ( item == m_canvasTip ||
item->rtti() == QCanvasItem::Rtti_Line ||
item->rtti() == QCanvasItem::Rtti_Text ||
item->rtti() == QCanvasItem::Rtti_Rectangle )
{
++it;
}
else
{
if ( item->rtti() == ItemDocument::RTTI::ConnectorLine )
return (static_cast<ConnectorLine*>(item))->parent();
return item;
}
}
return 0L;
}
void ItemDocument::alignHorizontally( )
{
selectList()->slotAlignHorizontally();
if ( ICNDocument *icnd = dynamic_cast<ICNDocument*>(this) )
icnd->requestRerouteInvalidatedConnectors();
}
void ItemDocument::alignVertically( )
{
selectList()->slotAlignVertically();
if ( ICNDocument *icnd = dynamic_cast<ICNDocument*>(this) )
icnd->requestRerouteInvalidatedConnectors();
}
void ItemDocument::distributeHorizontally( )
{
selectList()->slotDistributeHorizontally();
if ( ICNDocument *icnd = dynamic_cast<ICNDocument*>(this) )
icnd->requestRerouteInvalidatedConnectors();
}
void ItemDocument::distributeVertically( )
{
selectList()->slotDistributeVertically();
if ( ICNDocument *icnd = dynamic_cast<ICNDocument*>(this) )
icnd->requestRerouteInvalidatedConnectors();
}
bool ItemDocument::registerUID( const QString &UID )
{
if ( m_idList.findIndex(UID) == -1 )
{
m_idList.append(UID);
return true;
}
return false;
}
void ItemDocument::unregisterUID( const QString & uid )
{
m_idList.remove(uid);
}
QString ItemDocument::generateUID( QString name )
{
name.remove( QRegExp("__.*") ); // Change 'node__13' to 'node', for example
QString idAttempt = name;
// if ( idAttempt.find("__") != -1 ) idAttempt.truncate( idAttempt.find("__") );
while ( !registerUID(idAttempt) ) { idAttempt = name + "__" + QString::number(m_nextIdNum++); }
return idAttempt;
}
void ItemDocument::canvasRightClick( const QPoint &pos, QCanvasItem* item )
{
if (item)
{
if ( item->rtti() == ItemDocument::RTTI::CNItem &&
!item->isSelected() )
{
unselectAll();
select(item);
}
}
p_ktechlab->unplugActionList("alignment_actionlist");
p_ktechlab->unplugActionList("orientation_actionlist");
p_ktechlab->unplugActionList("component_actionlist");
fillContextMenu(pos);
QPopupMenu *pop = static_cast<QPopupMenu*>(p_ktechlab->factory()->container("item_popup", p_ktechlab));
if (!pop)
return;
pop->popup(pos);
}
void ItemDocument::fillContextMenu( const QPoint & pos )
{
Q_UNUSED(pos);
ItemView * activeItemView = dynamic_cast<ItemView*>(activeView());
if ( !p_ktechlab || !activeItemView )
return;
KAction * align_actions[] = {
activeItemView->action("align_horizontally"),
activeItemView->action("align_vertically"),
activeItemView->action("distribute_horizontally"),
activeItemView->action("distribute_vertically") };
bool enableAlignment = selectList()->itemCount() > 1;
if ( !enableAlignment )
return;
for ( unsigned i = 0; i < 4; ++i )
{
align_actions[i]->setEnabled(true);
m_pAlignmentAction->remove( align_actions[i] );
m_pAlignmentAction->insert( align_actions[i] );
}
QPtrList<KAction> alignment_actions;
alignment_actions.append( m_pAlignmentAction );
p_ktechlab->plugActionList( "alignment_actionlist", alignment_actions );
}
void ItemDocument::slotInitItemActions( Item *item )
{
Q_UNUSED(item);
ItemView * activeItemView = dynamic_cast<ItemView*>(activeView());
if ( !p_ktechlab || !activeItemView )
return;
KAction * align_actions[] = {
activeItemView->action("align_horizontally"),
activeItemView->action("align_vertically"),
activeItemView->action("distribute_horizontally"),
activeItemView->action("distribute_vertically") };
bool enableAlignment = selectList()->itemCount() > 1;
for ( unsigned i = 0; i < 4; ++i )
align_actions[i]->setEnabled(enableAlignment);
}
void ItemDocument::updateBackground()
{
// Also used in the constructor to make the background initially.
// Thoughts.
// ~The pixmap could be done somehow with 1bpp. It might save some waste
// I expect it won't hurt for now.
// ~This is all rather static, only works with square etc... should be no prob. for most uses. IMO.
// ~If you want, decide what maximum and minimum spacing should be, then enforce them
// in the Config (I suppose you can use <max></max> tags?)
// ~Defaults based on the existing grid background png. It should produce identical results, to your
// original png.
// **** Below where it says "interval * 10", that decides how big the pixmap will be (always square)
// Originally I set this to 32, which give 256x256 with 8 spacing, as that was the size of your pixmap
// Are there any good reasons to make the a certain size? (i.e. big or small ?).
int interval = 8;
int bigness = interval * 10;
QPixmap pm( bigness, bigness );
// pm.fill( KTLConfig::bgColor() ); // first fill the background colour in
pm.fill( Qt::white );
if( KTLConfig::showGrid() ){
QPainter p(&pm); // setup painter to draw on pixmap
p.setPen( KTLConfig::gridColor() ); // set forecolour
// note: anything other than 8 borks this
for( int i = (interval / 2); i < bigness; i+=interval ){
p.drawLine( 0, i, bigness, i ); // horizontal
p.drawLine( i, 0, i, bigness ); // vertical
}
p.end(); // all done
}
pm.setDefaultOptimization( QPixmap::BestOptim );
m_canvas->setBackgroundPixmap(pm); // and the finale.
}
void ItemDocument::requestEvent( ItemDocumentEvent::type type )
{
m_queuedEvents |= type;
m_pEventTimer->stop();
m_pEventTimer->start( 0, true );
}
void ItemDocument::processItemDocumentEvents()
{
// Copy it incase we have new events requested while doing this...
unsigned queuedEvents = m_queuedEvents;
m_queuedEvents = 0;
if ( queuedEvents & ItemDocumentEvent::ResizeCanvasToItems )
resizeCanvasToItems();
if ( queuedEvents & ItemDocumentEvent::UpdateZOrdering )
slotUpdateZOrdering();
ICNDocument * icnd = dynamic_cast<ICNDocument*>(this);
if ( icnd && (queuedEvents & ItemDocumentEvent::UpdateNodeGroups) )
icnd->slotAssignNodeGroups();
if ( icnd && (queuedEvents & ItemDocumentEvent::RerouteInvalidatedConnectors) )
icnd->rerouteInvalidatedConnectors();
}
void ItemDocument::resizeCanvasToItems()
{
const ViewList::iterator end = m_viewList.end();
QRect bound = canvasBoundingRect();
QSize size( bound.right(), bound.bottom() );
m_viewList.remove((View*)0);
for ( ViewList::iterator it = m_viewList.begin(); it != end; ++it )
{
CVBEditor * cvbEditor = (static_cast<ItemView*>((View*)*it))->cvbEditor();
int contentsX, contentsY;
int contentsWMX, contentsWMY;
cvbEditor->viewportToContents( cvbEditor->viewport()->width(), cvbEditor->viewport()->height(), contentsX, contentsY );
cvbEditor->inverseWorldMatrix().map( contentsX, contentsY, &contentsWMX, &contentsWMY );
// Hack to fix a bug whereby when scrolled, but emoty gap before scrollbars,
// size slowly decreases one pixel at a time
if ( (contentsX - contentsWMX) == 1 )
contentsWMX = contentsX;
if ( (contentsY - contentsWMY) == 1 )
contentsWMY = contentsY;
size = size.expandedTo( QSize( contentsWMX, contentsWMY ) );
}
// We want to avoid flicker....
for ( ViewList::iterator it = m_viewList.begin(); it != end; ++it )
{
ItemView * itemView = static_cast<ItemView*>((View*)*it);
CVBEditor * cvbEditor = itemView->cvbEditor();
cvbEditor->setVScrollBarMode( ((size.height()*itemView->zoomLevel()) > cvbEditor->visibleHeight()) ? QScrollView::AlwaysOn : QScrollView::AlwaysOff );
cvbEditor->setHScrollBarMode( ((size.width()*itemView->zoomLevel()) > cvbEditor->visibleWidth()) ? QScrollView::AlwaysOn : QScrollView::AlwaysOff );
}
bool changedSize = canvas()->size() != size;
canvas()->resize( size.width(), size.height() );
if (changedSize)
requestEvent( ItemDocumentEvent::ResizeCanvasToItems );
else if ( ICNDocument * icnd = dynamic_cast<ICNDocument*>(this) )
icnd->createCellMap();
}
QRect ItemDocument::canvasBoundingRect() const
{
QRect bound;
const QCanvasItemList allItems = canvas()->allItems();
const QCanvasItemList::const_iterator end = allItems.end();
for ( QCanvasItemList::const_iterator it = allItems.begin(); it != end; ++it )
{
if ( !(*it)->isVisible() )
continue;
bound |= (*it)->boundingRect();
}
if ( !bound.isNull() )
{
bound.setLeft( bound.left() - 16 );
bound.setTop( bound.top() - 16 );
bound.setRight( bound.right() + 16 );
bound.setBottom( bound.bottom() + 16 );
}
return bound;
}
void ItemDocument::exportToImage()
{
// scaralously copied from print.
// this slot is called whenever the File->Export menu is selected,
// the Export shortcut is pressed or the Export toolbar
// button is clicked
// widget for the kfiledialog
// It is the bit that says "Crop circuit?"
// Okay need to think of something way better to say here.
// gotme here, KFileDialog makes itself parent so tries to destroy cropCheck when it is deleted.
// therefore we use a pointer.
QString cropMessage;
if ( type() == Document::dt_flowcode )
cropMessage = i18n("Crop image to program parts");
else if ( type() == Document::dt_circuit )
cropMessage = i18n("Crop image to circuit components");
else
cropMessage = i18n("Crop image");
QCheckBox *cropCheck = new QCheckBox( cropMessage, p_ktechlab, "cropCheck" );
cropCheck->setChecked(true); // yes by default?
// we need an object so we can retrieve which image type was selected by the user
// so setup the filedialog.
KFileDialog exportDialog(QString::null, "*.png|PNG Image\n*.bmp|BMP Image\n*.svg|SVG Image" , p_ktechlab, i18n("Export As Image"), true, cropCheck);
exportDialog.setOperationMode( KFileDialog::Saving );
// now actually show it
if ( exportDialog.exec() == QDialog::Rejected )
return;
KURL url = exportDialog.selectedURL();
if ( url.isEmpty() )
return;
if ( QFile::exists( url.path() ) )
{
int query = KMessageBox::warningYesNo( p_ktechlab, i18n( "A file named \"%1\" already exists. " "Are you sure you want to overwrite it?" ).arg( url.fileName() ), i18n( "Overwrite File?" ), i18n( "Overwrite" ), KStdGuiItem::cancel() );
if ( query == KMessageBox::No ) return;
}
// with Qt, you always "print" to a
// QPainter.. whether the output medium is a pixmap, a screen,
// or paper
// needs to be something like QPicture to do SVG etc...
// at the moment the pixmap is just as big as the canvas,
// intend to make some kind of cropping thing so it just
// takes the bit with the circuit on.
QRect saveArea;
QString type;
QRect cropArea;
QPaintDevice *outputImage;
QString filter = exportDialog.currentFilter();
filter = filter.lower(); // gently soften the appearance of the letters.
// did have a switch here but seems you can't use that on strings
if ( filter == "*.png" )
type = "PNG";
else if ( filter == "*.bmp" )
type = "BMP";
else if ( filter == "*.svg" )
{
KMessageBox::information( NULL, i18n("SVG export is sub-functional"), i18n("Export As Image") );
type = "SVG";
}
// I don't like forcing people to use the right extension (personally)
// but it is the easiest way to decide image type.
else
{
KMessageBox::sorry( NULL, i18n("Unknown extension, please select one from the filter list."), i18n("Export As Image") );
return;
}
if ( cropCheck->isChecked() )
{
cropArea = canvasBoundingRect();
if ( cropArea.isNull() )
{
KMessageBox::sorry( 0l, i18n("There is nothing to crop"), i18n("Export As Image") );
return;
}
else
{
cropArea &= canvas()->rect();
}
}
saveArea = m_canvas->rect();
if ( type == "PNG" || type == "BMP" )
outputImage = new QPixmap( saveArea.size() );
else if ( type == "SVG" )
{
setSVGExport(true);
outputImage = new QPicture();
// svg can't be cropped using the qimage method.
saveArea = cropArea;
}
else
{
kdWarning() << "Unknown type!" << endl;
return;
}
QPainter p(outputImage);
m_canvas->setBackgroundPixmap(QPixmap());
m_canvas->drawArea( saveArea, &p );
updateBackground();
p.end();
bool saveResult;
// if cropping we need to convert to an image,
// crop, then save.
if ( cropCheck->isChecked() )
{
if( type == "SVG" )
saveResult = dynamic_cast<QPicture*>(outputImage)->save( url.path(), type);
else
{
QImage img = dynamic_cast<QPixmap*>(outputImage)->convertToImage();
img = img.copy(cropArea);
saveResult = img.save(url.path(),type);
}
}
else
{
if ( type=="SVG" )
saveResult = dynamic_cast<QPicture*>(outputImage)->save( url.path(), type );
else
saveResult = dynamic_cast<QPixmap*>(outputImage)->save( url.path(), type );
}
//if(saveResult == true) KMessageBox::information( this, i18n("Sucessfully exported to \"%1\"").arg( url.filename() ), i18n("Image Export") );
//else KMessageBox::information( this, i18n("Export failed"), i18n("Image Export") );
if ( type == "SVG" )
setSVGExport(false);
if (saveResult == false)
KMessageBox::information( p_ktechlab, i18n("Export failed"), i18n("Image Export") );
delete outputImage;
}
void ItemDocument::setSVGExport( bool svgExport )
{
// Find any items and tell them not to draw buttons or sliders
QCanvasItemList items = m_canvas->allItems();
const QCanvasItemList::iterator end = items.end();
for ( QCanvasItemList::Iterator it = items.begin(); it != end; ++it )
{
if ( CNItem * cnItem = dynamic_cast<CNItem*>(*it) )
cnItem->setDrawWidgets(!svgExport);
}
}
void ItemDocument::raiseZ()
{
raiseZ( selectList()->items(true) );
}
void ItemDocument::raiseZ( const ItemList & itemList )
{
if ( m_zOrder.isEmpty() )
slotUpdateZOrdering();
if ( m_zOrder.isEmpty() )
return;
IntItemMap::iterator begin = m_zOrder.begin();
IntItemMap::iterator previous = m_zOrder.end();
IntItemMap::iterator it = --m_zOrder.end();
do
{
Item * previousData = (previous == m_zOrder.end()) ? 0l : previous.data();
Item * currentData = it.data();
if ( currentData && previousData && itemList.contains(currentData) && !itemList.contains(previousData) )
{
previous.data() = currentData;
it.data() = previousData;
}
previous = it;
--it;
}
while ( previous != begin );
slotUpdateZOrdering();
}
void ItemDocument::lowerZ()
{
lowerZ( selectList()->items(true) );
}
void ItemDocument::lowerZ( const ItemList & itemList )
{
if ( m_zOrder.isEmpty() )
slotUpdateZOrdering();
if ( m_zOrder.isEmpty() )
return;
IntItemMap::iterator previous = m_zOrder.begin();
IntItemMap::iterator end = m_zOrder.end();
for ( IntItemMap::iterator it = m_zOrder.begin(); it != end; ++it )
{
Item * previousData = previous.data();
Item * currentData = it.data();
if ( currentData && previousData && itemList.contains(currentData) && !itemList.contains(previousData) )
{
previous.data() = currentData;
it.data() = previousData;
}
previous = it;
}
slotUpdateZOrdering();
}
void ItemDocument::itemAdded( Item * )
{
requestEvent( ItemDocument::ItemDocumentEvent::UpdateZOrdering );
}
void ItemDocument::slotUpdateZOrdering()
{
ItemList toAdd = m_itemList;
toAdd.remove((Item*)0l);
IntItemMap newZOrder;
int atLevel = 0;
IntItemMap::iterator zEnd = m_zOrder.end();
for ( IntItemMap::iterator it = m_zOrder.begin(); it != zEnd; ++it )
{
Item * item = it.data();
if (!item)
continue;
toAdd.remove(item);
if ( !item->parentItem() && item->isMovable() )
newZOrder[atLevel++] = item;
}
ItemList::iterator addEnd = toAdd.end();
for ( ItemList::iterator it = toAdd.begin(); it != addEnd; ++it )
{
Item * item = *it;
if ( item->parentItem() || !item->isMovable() )
continue;
newZOrder[atLevel++] = item;
}
m_zOrder = newZOrder;
zEnd = m_zOrder.end();
for ( IntItemMap::iterator it = m_zOrder.begin(); it != zEnd; ++it )
it.data()->updateZ( it.key() );
}
void ItemDocument::update( )
{
ItemList::iterator end = m_itemList.end();
for ( ItemList::iterator it = m_itemList.begin(); it != end; ++it )
{
if ( (*it)->hasDynamicContent() )
(*it)->setChanged();
}
}
//END class ItemDocument
//BEGIN class CanvasTip
CanvasTip::CanvasTip( ItemDocument *itemDocument, QCanvas *qcanvas )
: QCanvasText(qcanvas)
{
p_itemDocument = itemDocument;
setColor( Qt::black );
setZ( ICNDocument::Z::Tip );
}
CanvasTip::~CanvasTip()
{
}
void CanvasTip::displayVI( ECNode *node, const QPoint &pos )
{
if ( !node || !updateVI() )
return;
unsigned num = node->numPins();
m_v.resize(num);
m_i.resize(num);
for ( unsigned i = 0; i < num; i++ )
{
if ( Pin * pin = node->pin(i) )
{
m_v[i] = pin->voltage();
m_i[i] = pin->current();
}
}
display(pos);
}
void CanvasTip::displayVI( Connector *connector, const QPoint &pos )
{
if ( !connector || !updateVI())
return;
unsigned num = connector->numWires();
m_v.resize(num);
m_i.resize(num);
for ( unsigned i = 0; i < num; i++ )
{
if ( Wire * wire = connector->wire(i) )
{
m_v[i] = wire->voltage();
m_i[i] = std::abs(wire->current());
}
}
display(pos);
}
bool CanvasTip::updateVI()
{
CircuitDocument *circuitDocument = dynamic_cast<CircuitDocument*>(p_itemDocument);
if ( !circuitDocument || !Simulator::self()->isSimulating() )
return false;
circuitDocument->calculateConnectorCurrents();
return true;
}
void CanvasTip::display( const QPoint &pos )
{
unsigned num = m_v.size();
for ( unsigned i = 0; i < num; i++ )
{
if ( !std::isfinite(m_v[i]) || std::abs(m_v[i]) < 1e-9 )
m_v[i] = 0.;
if ( !std::isfinite(m_i[i]) || std::abs(m_i[i]) < 1e-9 )
m_i[i] = 0.;
}
move( pos.x()+20, pos.y()+4 );
if ( num == 0 )
return;
if ( num == 1 )
setText( displayText(0) );
else
{
QString text;
for ( unsigned i = 0; i < num; i++ )
text += QString(" %1: %2\n").arg( QString::number(i) ).arg( displayText(i) );
setText(text);
}
}
QString CanvasTip::displayText( unsigned num ) const
{
if ( m_v.size() <= num )
return QString::null;
return QString(" %1%2V %3%4A ")
.arg( QString::number( m_v[num] / CNItem::getMultiplier(m_v[num]), 'g', 3 ) )
.arg( CNItem::getNumberMag( m_v[num] ) )
.arg( QString::number( m_i[num] / CNItem::getMultiplier(m_i[num]), 'g', 3 ) )
.arg( CNItem::getNumberMag( m_i[num] ) );
}
void CanvasTip::draw( QPainter &p )
{
CircuitDocument *circuitDocument = dynamic_cast<CircuitDocument*>(p_itemDocument);
if ( !circuitDocument || !Simulator::self()->isSimulating() )
return;
p.setBrush( QColor( 0xff, 0xff, 0xdc ) );
p.setPen( Qt::black );
p.drawRect( boundingRect() );
QCanvasText::draw(p);
}
//END class CanvasTip
//BEGIN class Canvas
Canvas::Canvas( ItemDocument *itemDocument, const char * name )
: QCanvas( itemDocument, name )
{
p_itemDocument = itemDocument;
m_pMessageTimeout = new QTimer(this);
connect( m_pMessageTimeout, SIGNAL(timeout()), this, SLOT(slotSetAllChanged()) );
}
void Canvas::setMessage( const QString & message )
{
m_message = message;
if ( message.isEmpty() )
m_pMessageTimeout->stop();
else
m_pMessageTimeout->start( 2000, true );
setAllChanged();
}
void Canvas::drawBackground ( QPainter &p, const QRect & clip )
{
QCanvas::drawBackground( p, clip );
#if 0
const int scx = (int)((clip.left()-4)/8);
const int ecx = (int)((clip.right()+4)/8);
const int scy = (int)((clip.top()-4)/8);
const int ecy = (int)((clip.bottom()+4)/8);
if ( !((ICNDocument*)(p_itemDocument))->isValidCellReference( scx, scy ) ||
!((ICNDocument*)(p_itemDocument))->isValidCellReference( ecx, ecy ) ) return;
Cells *c = ((ICNDocument*)(p_itemDocument))->cells();
for ( int x=scx; x<=ecx; x++ )
{
for ( int y=scy; y<=ecy; y++ )
{
const double score = (*c)[x][y].CIpenalty+(*c)[x][y].Cpenalty;
int value = (int)std::log(score)*20;
if ( value>255 ) value=255;
else if (value<0 ) value=0;
p.setBrush( QColor( 255, (255-value), (255-value) ) );
p.setPen( Qt::NoPen );
p.drawRect( (x*8), (y*8), 8, 8 );
}
}
#endif
}
void Canvas::drawForeground ( QPainter &p, const QRect & clip )
{
QCanvas::drawForeground( p, clip );
if ( !m_pMessageTimeout->isActive() )
return;
// Following code stolen and adapted from amarok/src/playlist.cpp :)
// Find out width of smallest view
QSize minSize;
const ViewList viewList = p_itemDocument->viewList();
ViewList::const_iterator end = viewList.end();
View * firstView = 0l;
for ( ViewList::const_iterator it = viewList.begin(); it != end; ++it )
{
if ( !*it )
continue;
if ( !firstView )
{
firstView = *it;
minSize = (*it)->size();
}
else
minSize = minSize.boundedTo( (*it)->size() );
}
if ( !firstView )
return;
QSimpleRichText * t = new QSimpleRichText( m_message, QApplication::font() );
int w = t->width();
int h = t->height();
int x = 15;
int y = 15;
int b = 10; // text padding
if ( w+2*b >= minSize.width() || h+2*b >= minSize.height() )
{
delete t;
return;
}
p.setBrush( firstView->colorGroup().background() );
p.drawRoundRect( x, y, w+2*b, h+2*b, (8*200)/(w+2*b), (8*200)/(h+2*b) );
t->draw( &p, x+b, y+b, QRect(), firstView->colorGroup() );
delete t;
}
void Canvas::update()
{
p_itemDocument->update();
QCanvas::update();
}
//END class Canvas
#include "itemdocument.moc"