void ShapeResizeStrategy::handleCustomEvent( KoPointerEvent * event )
{
QPointF center = 0.5 * QPointF( m_initialSize.width(), m_initialSize.height() );
qreal zoom = pow(1.01, -0.1 * event->z() );
m_lastScale *= zoom;
resizeBy( center, m_lastScale.x(), m_lastScale.y() );
}
void ShapeResizeStrategy::handleMouseMove(const QPointF &point, Qt::KeyboardModifiers modifiers)
{
tool()->canvas()->updateCanvas(tool()->canvas()->snapGuide()->boundingRect());
QPointF newPos = tool()->canvas()->snapGuide()->snap( point, modifiers );
tool()->canvas()->updateCanvas(tool()->canvas()->snapGuide()->boundingRect());
bool keepAspect = modifiers & Qt::ShiftModifier;
foreach(KoShape *shape, m_selectedShapes)
keepAspect = keepAspect || shape->keepAspectRatio();
qreal startWidth = m_initialSize.width();
if (startWidth < std::numeric_limits<qreal>::epsilon())
startWidth = std::numeric_limits<qreal>::epsilon();
qreal startHeight = m_initialSize.height();
if (startHeight < std::numeric_limits<qreal>::epsilon())
startHeight = std::numeric_limits<qreal>::epsilon();
QPointF distance = m_unwindMatrix.map(newPos) - m_unwindMatrix.map( m_start );
// guard against resizing zero width shapes, which would result in huge zoom factors
if (m_initialSize.width() < std::numeric_limits<qreal>::epsilon()) {
distance.rx() = 0.0;
}
// guard against resizing zero height shapes, which would result in huge zoom factors
if (m_initialSize.height() < std::numeric_limits<qreal>::epsilon()) {
distance.ry() = 0.0;
}
const bool scaleFromCenter = modifiers & Qt::ControlModifier;
if (scaleFromCenter) {
distance *= 2.0;
}
qreal zoomX=1, zoomY=1;
if (m_left)
zoomX = (startWidth - distance.x()) / startWidth;
else if (m_right)
zoomX = (startWidth + distance.x()) / startWidth;
if (m_top)
zoomY = (startHeight - distance.y()) / startHeight;
else if (m_bottom)
zoomY = (startHeight + distance.y()) / startHeight;
if (keepAspect) {
const bool cornerUsed = ((m_bottom?1:0) + (m_top?1:0) + (m_left?1:0) + (m_right?1:0)) == 2;
if ((cornerUsed && startWidth < startHeight) || m_left || m_right)
zoomY = zoomX;
else
zoomX = zoomY;
}
QPointF move;
if (scaleFromCenter)
move = QPointF(startWidth / 2.0, startHeight / 2.0);
else
move = QPointF(m_left?startWidth:0, m_top?startHeight:0);
resizeBy( move, zoomX, zoomY );
}
void
CQIllustratorShape::
resizeTo(double w, double h)
{
const CBBox2D &bbox = getFlatBBox();
double dw = w - bbox.getWidth ();
double dh = h - bbox.getHeight();
resizeBy(dw, dh);
}
void Selection::mouseMoveEvent(QGraphicsSceneMouseEvent * event)
{
if(isReadOnly())
return;
QPointF move_delta = event->pos() - event->lastPos();
if(isResizing())
resizeBy(move_delta);
else
moveBy(move_delta);
event->accept();
}
void
AnimatedSplitter::addWidget( AnimatedWidget* widget )
{
QSplitter::addWidget( widget );
connect( widget, SIGNAL( showWidget() ), SLOT( onShowRequest() ) );
connect( widget, SIGNAL( hideWidget() ), SLOT( onHideRequest() ) );
connect( widget, SIGNAL( sizeHintChanged( QSize ) ), SLOT( onShowRequest() ) );
connect( widget, SIGNAL( sizeChanged( QSize ) ), SLOT( onSizeChanged( QSize ) ) );
connect( widget, SIGNAL( resizeBy( QPoint ) ), SLOT( onResizeRequest( QPoint ) ) );
connect( this, SIGNAL( shown( QWidget*, bool ) ), widget, SLOT( onShown( QWidget*, bool ) ) );
connect( this, SIGNAL( hidden( QWidget*, bool ) ), widget, SLOT( onHidden( QWidget*, bool ) ) );
}
void ShapeResizeStrategy::handleMouseMove(const QPointF &point, Qt::KeyboardModifiers modifiers)
{
tool()->canvas()->updateCanvas(tool()->canvas()->snapGuide()->boundingRect());
QPointF newPos = tool()->canvas()->snapGuide()->snap( point, modifiers );
tool()->canvas()->updateCanvas(tool()->canvas()->snapGuide()->boundingRect());
bool keepAspect = modifiers & Qt::ShiftModifier;
foreach(KoShape *shape, m_selectedShapes)
keepAspect = keepAspect || shape->keepAspectRatio();
qreal startWidth = m_initialSize.width();
if (startWidth < std::numeric_limits<qreal>::epsilon())
startWidth = std::numeric_limits<qreal>::epsilon();
qreal startHeight = m_initialSize.height();
if (startHeight < std::numeric_limits<qreal>::epsilon())
startHeight = std::numeric_limits<qreal>::epsilon();
QPointF distance = m_unwindMatrix.map(newPos) - m_unwindMatrix.map( m_start );
// guard against resizing zero width shapes, which would result in huge zoom factors
if (m_initialSize.width() < std::numeric_limits<qreal>::epsilon()) {
distance.rx() = 0.0;
}
// guard against resizing zero height shapes, which would result in huge zoom factors
if (m_initialSize.height() < std::numeric_limits<qreal>::epsilon()) {
distance.ry() = 0.0;
}
const bool scaleFromCenter = modifiers & Qt::ControlModifier;
if (scaleFromCenter) {
distance *= 2.0;
}
qreal newWidth = startWidth;
qreal newHeight = startHeight;
if (m_left) {
newWidth = startWidth - distance.x();
} else if (m_right) {
newWidth = startWidth + distance.x();
}
if (m_top) {
newHeight = startHeight - distance.y();
} else if (m_bottom) {
newHeight = startHeight + distance.y();
}
/**
* Do not let a shape be less than 1px in size in current view
* coordinates. If the user wants it to be smaller, he can just
* zoom-in a bit.
*/
QSizeF minViewSize(1.0, 1.0);
QSizeF minDocSize = tool()->canvas()->viewConverter()->viewToDocument(minViewSize);
if (qAbs(newWidth) < minDocSize.width()) {
int sign = newWidth >= 0.0 ? 1 : -1; // zero -> '1'
newWidth = sign * minDocSize.width();
}
if (qAbs(newHeight) < minDocSize.height()) {
int sign = newHeight >= 0.0 ? 1 : -1; // zero -> '1'
newHeight = sign * minDocSize.height();
}
qreal zoomX = newWidth / startWidth;
qreal zoomY = newHeight / startHeight;
if (keepAspect) {
const bool cornerUsed = ((m_bottom?1:0) + (m_top?1:0) + (m_left?1:0) + (m_right?1:0)) == 2;
if ((cornerUsed && startWidth < startHeight) || m_left || m_right)
zoomY = zoomX;
else
zoomX = zoomY;
}
QPointF move;
if (scaleFromCenter)
move = QPointF(startWidth / 2.0, startHeight / 2.0);
else
move = QPointF(m_left?startWidth:0, m_top?startHeight:0);
resizeBy( move, zoomX, zoomY );
}
