koa item resize crash fix

1 files changed, 21 insertions, 1 deletions

diff --git a/korganizer/koagendaitem.cpp b/korganizer/koagendaitem.cpp
index 5ee433a..7e6fa48 100644
--- a/korganizer/koagendaitem.cpp
+++ b/korganizer/koagendaitem.cpp
@@ -377,220 +377,240 @@ void KOAgendaItem::paintMe( bool selected, QPainter* paint )
         x += 2; yy += 1;w -= 4;  h-= 4; 
         if ( nfh < 6.01 ) {
             yy -= 2;
             h += 4;
         }
         else
             if ( nfh < h -2 )
                 ++yy;
     }
     int align;
 #ifndef DESKTOP_VERSION
     align = ( AlignLeft|WordBreak|AlignTop);
 #else
     align = ( AlignLeft|BreakAnywhere|WordBreak|AlignTop);
 #endif
     if (  addIcon  ) {
         if ( ! horLayout ) {
             x += AGENDA_ICON_SIZE+3;
             w -= (AGENDA_ICON_SIZE+3);
         }
         else {
             yy+= AGENDA_ICON_SIZE+2;
             h -=(AGENDA_ICON_SIZE+3);
         }
     } 
     int colsum = mBackgroundColor.red() + mBackgroundColor.green() + mBackgroundColor.blue();
     if ( colsum < 250 )
         paint->setPen ( white); 
     if ( x < 0 ) {
         w = w+x-3;
         x = 3;
         if ( w > parentWidget()->width() ){
             w = parentWidget()->width() - 6;
 #ifndef DESKTOP_VERSION
     align = ( AlignHCenter|WordBreak|AlignTop);
 #else
     align = ( AlignHCenter|BreakAnywhere|WordBreak|AlignTop);
 #endif
 
         }
     }
     QRect dr;
     if ( w + x > parentWidget()->width() )
         w = parentWidget()->width()-x;
      paint->drawText ( x, yy, w, h, align, mDisplayedText, -1, &dr );
      //qDebug("%d %d %d %d ",   x, yy, w, h );
      if ( mIncidence->cancelled() ){
          if ( ! small ) {
              QFontMetrics fm ( paint->font() );
              paint->drawLine(dr.left(), yy+fm.height()/2, dr.right()-2, yy+fm.height()/2);
          }
 
      }
     pa.end();
  
 }
 void KOAgendaItem::resizePixmap( int w , int h )
 {
     paintPix()->resize( w, h ); 
     paintPixSel()->resize( w, h ); 
 
 }
 QPixmap * KOAgendaItem::paintPix()
 {
     static QPixmap* mPaintPix = 0;
     if ( ! mPaintPix )
         mPaintPix = new QPixmap(1,1);
     return mPaintPix ; 
 }
 QPixmap * KOAgendaItem::paintPixAllday()
 {
     static QPixmap* mPaintPixA = 0;
     if ( ! mPaintPixA ) 
         mPaintPixA = new QPixmap(1,1);
     return mPaintPixA ; 
 }
 QPixmap * KOAgendaItem::paintPixSel()
 {
     static QPixmap* mPaintPixSel = 0;
     if ( ! mPaintPixSel )
         mPaintPixSel = new QPixmap(1,1);
     return mPaintPixSel ; 
 }
 void KOAgendaItem::paintEvent ( QPaintEvent *e )
 {  
 
     if ( globalFlagBlockAgendaItemPaint )
         return; 
     if ( globalFlagBlockAgenda > 0 &&  globalFlagBlockAgenda < 5 )
       return;
     int yy;
     if ( mAllDay )
         yy = y();
     else
         yy = mCellYTop * ( height() / cellHeight() );
     int xx = x();
+  
     if ( xPaintCoord != xx || yPaintCoord != yy || 
          wPaintCoord != width() ||  hPaintCoord != height()) {
         xPaintCoord= xx;
         yPaintCoord = yy;
         wPaintCoord = width();
         hPaintCoord = height();
         globalFlagBlockAgendaItemUpdate = 0;
         paintMe( mSelected );
         //qDebug("calling paintMe ");
         globalFlagBlockAgendaItemUpdate = 1;
     }
     int rx, ry, rw, rh;
     rx =  e->rect().x();
     ry =  e->rect().y();
     rw =  e->rect().width();
     rh =  e->rect().height();
     //qDebug("   paintevent %s %d %d    %d  %d", mIncidence->summary().latin1(), x(), yy, width(), height()); 
 
     QPixmap* paintFrom ;
     if ( mSelected ) {
         paintFrom =  paintPixSel();
     } else {
         if ( mAllDay )
             paintFrom =  paintPixAllday();
         else
             paintFrom =  paintPix();
     }
-    bitBlt (this, rx, ry, paintFrom, x()+rx ,yPaintCoord+ry, rw, rh ,CopyROP); 
+    xx += rx;
+
+    if ( xx < 0 ) {
+        rw = rw + xx;
+        rx -= xx;
+        xx = 0;
+        if ( rw < 0 ) {
+            qDebug("KOAgendaItem::Width1 < 0. Returning ");
+            return;
+        }
+    }
+    if ( paintFrom->width() <   xx+rw ) {
+        rw =  paintFrom->width() - xx;
+        if ( rw < 0 ) {
+            qDebug("KOAgendaItem::Width2 < 0. Returning ");
+            return;
+        }
+    }
+    //qDebug("%d %d %d %d %d  %d %d",rx, ry, paintFrom, xx ,yPaintCoord+ry, rw, rh);
+    bitBlt (this, rx, ry, paintFrom, xx ,yPaintCoord+ry, rw, rh ,CopyROP); 
 }
 void KOAgendaItem::computeText()
 {
  
     mDisplayedText =  mIncidence->summary();
     if ( (mIncidence->type() == "Todo") ) {
         if ( static_cast<Todo*>(mIncidence)->hasDueDate() ) {
             if ( static_cast<Todo*>(mIncidence)->dtDue().date() < QDate::currentDate() )
                 mDisplayedText += i18n(" (") +KGlobal::locale()->formatDate((static_cast<Todo*>(mIncidence))->dtDue().date(), true)+")";
             else if ( !(mIncidence->doesFloat()))
                 mDisplayedText += i18n(" (") +KGlobal::locale()->formatTime((static_cast<Todo*>(mIncidence))->dtDue().time())+")";
         } 
     } else {
         if ( !(mIncidence->doesFloat()) &&  KOPrefs::instance()->mShowTimeInAgenda)
             mDisplayedText += ": " +KGlobal::locale()->formatTime((static_cast<Event*>(mIncidence))->dtStart().time()) + "-" + KGlobal::locale()->formatTime((static_cast<Event*>(mIncidence))->dtEnd().time()) ;
 
         if (  mAllDay ) {
             if ( mIncidence->dtStart().date().addDays(3) < mIncidence->dtEnd().date() ) {
                 mDisplayedText += ": " +KGlobal::locale()->formatDate((static_cast<Event*>(mIncidence))->dtStart().date(), true) + " - " + KGlobal::locale()->formatDate((static_cast<Event*>(mIncidence))->dtEnd().date(), true) ;
             }
         }
 
     }
     
     if ( !mIncidence->location().isEmpty() ) {
         if ( mAllDay )
             mDisplayedText += " (";
         else
             mDisplayedText += "\n(";
         mDisplayedText += mIncidence->location() +")";
     }
 
     QString tipText = mIncidence->summary();
     if ( !mIncidence->doesFloat() ) {
         if ( mIncidence->type() == "Event" ) {
             if ( (static_cast<Event*>(mIncidence))->isMultiDay() ) {
                 tipText += "\n"+i18n("From: ")+mIncidence->dtStartStr();
                 tipText += "\n"+i18n("To: ")+(static_cast<Event*>(mIncidence))->dtEndStr();
             }
             else {
                 tipText += "\n"+i18n("Time: ")+mIncidence->dtStartTimeStr();
                 tipText += " - "+(static_cast<Event*>(mIncidence))->dtEndTimeStr();
             }
         }
         else if ( mIncidence->type() == "Todo" ) {
             if (mIncidence->hasStartDate())
                 tipText += "\n"+i18n("Start: ")+ (static_cast<Todo*>(mIncidence))->dtStartStr();
             if (((Todo*)mIncidence)->hasDueDate())
                 tipText += "\n"+i18n("Due: ")+ (static_cast<Todo*>(mIncidence))->dtDueStr();
         }
     } else if ( mIncidence->type() == "Todo" ) {
             if (mIncidence->hasStartDate())
                 tipText += "\n"+i18n("Start: ")+ (static_cast<Todo*>(mIncidence))->dtStartDateStr();
             if (((Todo*)mIncidence)->hasDueDate())
                 tipText += "\n"+i18n("Due: ")+ (static_cast<Todo*>(mIncidence))->dtDueDateStr();
         }
 
     if (!mIncidence->location().isEmpty()) {
         tipText += "\n"+i18n("Location: ")+mIncidence->location();
     }
     QToolTip::add(this,tipText,toolTipGroup(),""); 
 
 }
 void KOAgendaItem::updateItem()
 {  
     computeText();
      
     //qDebug("KOAgendaItem:: updateItem() %s %d %d ",incidence()->summary().latin1(), x(), y());
     paintMe( mSelected );
     repaint( false);
 }
   
 void KOAgendaItem::resizeEvent ( QResizeEvent *ev )
 {
     //qDebug("KOAgendaItem::resizeEvent %s ",  mIncidence->summary().latin1());
     paintMe( mSelected );
     repaint( false );
 } 
 
 /*
   Return height of item in units of agenda cells
 */
 int KOAgendaItem::cellHeight()
 {
     int ret = mCellYBottom - mCellYTop + 1;
     if ( ret <= 0 ) {
         ret = 1;
         mCellYBottom = 0;
         mCellYTop = 0;
     }
     return ret;
 }
 
 /*
   Return height of item in units of agenda cells
 */