QWMatrix QPixmap::trueMatrix( const QWMatrix &matrix, int w, int h )
{
const double dt = (double)0.;
double x1,y1, x2,y2, x3,y3, x4,y4; // get corners
double xx = (double)w;
double yy = (double)h;
QWMatrix mat( matrix.m11(), matrix.m12(), matrix.m21(), matrix.m22(), 0., 0. );
mat.map( dt, dt, &x1, &y1 );
mat.map( xx, dt, &x2, &y2 );
mat.map( xx, yy, &x3, &y3 );
mat.map( dt, yy, &x4, &y4 );
double ymin = y1; // lowest y value
if ( y2 < ymin ) ymin = y2;
if ( y3 < ymin ) ymin = y3;
if ( y4 < ymin ) ymin = y4;
double xmin = x1; // lowest x value
if ( x2 < xmin ) xmin = x2;
if ( x3 < xmin ) xmin = x3;
if ( x4 < xmin ) xmin = x4;
double ymax = y1; // lowest y value
if ( y2 > ymax ) ymax = y2;
if ( y3 > ymax ) ymax = y3;
if ( y4 > ymax ) ymax = y4;
double xmax = x1; // lowest x value
if ( x2 > xmax ) xmax = x2;
if ( x3 > xmax ) xmax = x3;
if ( x4 > xmax ) xmax = x4;
if ( xmax-xmin > 1.0 )
xmin -= xmin/(xmax-xmin);
if ( ymax-ymin > 1.0 )
ymin -= ymin/(ymax-ymin);
mat.setMatrix( matrix.m11(), matrix.m12(), matrix.m21(), matrix.m22(), -xmin, -ymin );
return mat;
}
void CNavigationDiagramView::contentsMouseMoveEvent(QMouseEvent * e){
QWMatrix matrix = inverseWorldMatrix();
double x = matrix.m11() * e->x() + matrix.m12() * e->y();
double y = matrix.m21() * e->x() + matrix.m22() * e->y();
if (! canvas()->onCanvas(x, y)) return;
if (m_pqActiveItem){
double dxPosLokal = e->pos().x() - m_qLastPos.x();
double dyPosLokal = e->pos().y() - m_qLastPos.y();
double dxPos = matrix.m11() * dxPosLokal + matrix.m12() * dyPosLokal;
double dyPos = matrix.m21() * dxPosLokal + matrix.m22() * dyPosLokal;
//int newIntX = (int) (x() + dxPos);
//int newIntY = (int) (y() + dyPos);
//if (! canvas()->onCanvas(newIntX, newIntY)) return;
m_pqActiveItem->moveBy(dxPos, dyPos);
m_qLastPos = e->pos();
canvas()->update();
if (m_pqActiveItem->rtti() == CFromDiagramMarker::RTTI){
CFromDiagramMarker *fromMarker = (CFromDiagramMarker*) m_pqActiveItem;
float fXPos = (float) fromMarker->GetCenterX();
float fYPos = (float) fromMarker->GetCenterY();
CNavigationProjectController::Instance()->SetNewFromPosition(fXPos, fYPos);
}else if (m_pqActiveItem->rtti() == CAtDiagramMarker::RTTI){
CAtDiagramMarker *atMarker = (CAtDiagramMarker*) m_pqActiveItem;
float fXPos = (float) atMarker->GetCenterX();
float fYPos = (float) atMarker->GetCenterY();
CNavigationProjectController::Instance()->SetNewAtPosition(fXPos, fYPos);
}
}
}
void CNavigationDiagramView::contentsMousePressEvent(QMouseEvent * e){
QWMatrix matrix = inverseWorldMatrix();
int xPos = matrix.m11() * e->pos().x() + matrix.m12() * e->pos().y();
int yPos = matrix.m21() * e->pos().x() + matrix.m22() * e->pos().y();
QPoint p(xPos, yPos);
QCanvasItemList items = canvas()->collisions(p);
if (items.empty()){
setActiveItem(0);
}else{
setActiveItem(*items.begin());
}
m_qLastPos = e->pos();
}
/**
* Tests if a point is over a stencils
*/
int SelectTool::isOverResizeHandle( KivioStencil *pStencil, const double x, const double y )
{
double three_pixels = 4.0;
int available;
QWMatrix m;
double w = pStencil->w();
double h = pStencil->h();
double w2 = pStencil->w() / 2.0;
double h2 = pStencil->h() / 2.0;
m.translate(pStencil->x(), pStencil->y());
m.translate(w2, h2);
m.rotate(pStencil->rotation());
m.translate(-w2, -h2);
// FIXME: this needs to be optimized!!!!
KoPoint tl(0 * m.m11() + 0 * m.m21() + m.dx(), 0 * m.m12() + 0 * m.m22() + m.dy());
KoPoint t(w2 * m.m11() + 0 * m.m21() + m.dx(), w2 * m.m12() + 0 * m.m22() + m.dy());
KoPoint tr(w * m.m11() + 0 * m.m21() + m.dx(), w * m.m12() + 0 * m.m22() + m.dy());
KoPoint r(w * m.m11() + h2 * m.m21() + m.dx(), w * m.m12() + h2 * m.m22() + m.dy());
KoPoint br(w * m.m11() + h * m.m21() + m.dx(), w * m.m12() + h * m.m22() + m.dy());
KoPoint b(w2 * m.m11() + h * m.m21() + m.dx(), w2 * m.m12() + h * m.m22() + m.dy());
KoPoint bl(0 * m.m11() + h * m.m21() + m.dx(), 0 * m.m12() + h * m.m22() + m.dy());
KoPoint l(0 * m.m11() + h2 * m.m21() + m.dx(), 0 * m.m12() + h2 * m.m22() + m.dy());
available = pStencil->resizeHandlePositions();
// Quick reject
if( !available )
return 0;
// Top left
if( available & krhpNW &&
RESIZE_BOX_TEST( x, y, tl.x(), tl.y() ) )
return 1;
// Top
if( available & krhpN &&
RESIZE_BOX_TEST( x, y, t.x(), t.y() ) )
return 2;
// Top right
if( available & krhpNE &&
RESIZE_BOX_TEST( x, y, tr.x(), tr.y() ) )
return 3;
// Right
if( available & krhpE &&
RESIZE_BOX_TEST( x, y, r.x(), r.y() ) )
return 4;
// Bottom right
if( available & krhpSE &&
RESIZE_BOX_TEST( x, y, br.x(), br.y() ) )
return 5;
// Bottom
if( available & krhpS &&
RESIZE_BOX_TEST( x, y, b.x(), b.y() ) )
return 6;
// Bottom left
if( available & krhpSW &&
RESIZE_BOX_TEST( x, y, bl.x(), bl.y() ) )
return 7;
// Left
if( available & krhpW &&
RESIZE_BOX_TEST( x, y, l.x(), l.y() ) )
return 8;
// Nothing found
return 0;
}