void RS_GraphicView::zoomAutoY(bool axis) {
if (container) {
double visibleHeight = 0.0;
double minY = RS_MAXDOUBLE;
double maxY = RS_MINDOUBLE;
bool noChange = false;
for(auto e: *container){
if (e->rtti()==RS2::EntityLine) {
RS_Line* l = (RS_Line*)e;
double x1, x2;
x1 = toGuiX(l->getStartpoint().x);
x2 = toGuiX(l->getEndpoint().x);
if ( ((x1 > 0.0) && (x1 < (double) getWidth())) ||
((x2 > 0.0) && (x2 < (double) getWidth())))
{
minY = std::min(minY, l->getStartpoint().y);
minY = std::min(minY, l->getEndpoint().y);
maxY = std::max(maxY, l->getStartpoint().y);
maxY = std::max(maxY, l->getEndpoint().y);
}
}
}
if (axis) {
visibleHeight = std::max(maxY, 0.0) - std::min(minY, 0.0);
} else {
visibleHeight = maxY-minY;
}
if (visibleHeight<1.0) {
noChange = true;
}
double fy = 1.0;
if (visibleHeight>1.0e-6) {
fy = (getHeight()-borderTop-borderBottom)
/ visibleHeight;
if (factor.y<0.000001) {
noChange = true;
}
}
if (noChange==false) {
setFactorY(fy);
//centerOffsetY();
offsetY = (int)((getHeight()-borderTop-borderBottom
- (visibleHeight*factor.y))/2.0
- (minY*factor.y)) + borderBottom;
adjustOffsetControls();
adjustZoomControls();
// updateGrid();
}
RS_DEBUG->print("Auto zoom y ok");
}
}
/**
* zooms in by factor f in y
*/
void RS_GraphicView::zoomInY(double f) {
factor.y*=f;
offsetY=(int)((offsetY-getHeight()/2)*f)+getHeight()/2;
adjustOffsetControls();
adjustZoomControls();
// updateGrid();
redraw();
}
/**
* zooms in by factor f in x
*/
void RS_GraphicView::zoomInX(double f) {
factor.x*=f;
offsetX=(int)((offsetX-getWidth()/2)*f)+getWidth()/2;
adjustOffsetControls();
adjustZoomControls();
// updateGrid();
redraw();
}
void QG_GraphicView::resizeEvent(QResizeEvent* /*e*/) {
RS_DEBUG->print("QG_GraphicView::resizeEvent begin");
adjustOffsetControls();
adjustZoomControls();
// updateGrid();
// Small hack, delete teh snapper during resizes
getOverlayContainer(RS2::Snapper)->clear();
redraw();
RS_DEBUG->print("QG_GraphicView::resizeEvent end");
}
/**
* zooms out by factor f y
*/
void RS_GraphicView::zoomOutY(double f) {
if (f<1.0e-6) {
RS_DEBUG->print(RS_Debug::D_WARNING,
"RS_GraphicView::zoomOutY: invalid factor");
return;
}
factor.y/=f;
offsetY=(int)(offsetY/f);
adjustOffsetControls();
adjustZoomControls();
// updateGrid();
redraw();
}
/**
* Zooms to page extends.
*/
void RS_GraphicView::zoomPage() {
RS_DEBUG->print("RS_GraphicView::zoomPage");
if (!container) {
return;
}
RS_Graphic* graphic = container->getGraphic();
if (!graphic) {
return;
}
RS_Vector s = graphic->getPaperSize()/graphic->getPaperScale();
double fx, fy;
if (s.x>RS_TOLERANCE) {
fx = (getWidth()-borderLeft-borderRight) / s.x;
} else {
fx = 1.0;
}
if (s.y>RS_TOLERANCE) {
fy = (getHeight()-borderTop-borderBottom) / s.y;
} else {
fy = 1.0;
}
RS_DEBUG->print("f: %f/%f", fx, fy);
fx = fy = std::min(fx, fy);
RS_DEBUG->print("f: %f/%f", fx, fy);
if (fx<RS_TOLERANCE) {
fx=fy=1.0;
}
setFactorX(fx);
setFactorY(fy);
RS_DEBUG->print("f: %f/%f", fx, fy);
centerOffsetX();
centerOffsetY();
adjustOffsetControls();
adjustZoomControls();
// updateGrid();
redraw();
}
/**
* Restores the view previously saved with
* @see saveView().
*/
void RS_GraphicView::restoreView() {
int pox = previousOffsetX;
int poy = previousOffsetY;
RS_Vector pf = previousFactor;
saveView();
offsetX = pox;
offsetY = poy;
factor = pf;
adjustOffsetControls();
adjustZoomControls();
// updateGrid();
redraw();
}
/**
* Restores the view previously saved with
* @see saveView().
*/
void RS_GraphicView::restoreView() {
if(savedViewCount == 0) return;
savedViewCount --;
if(savedViewCount==0){
emit previous_zoom_state(false);
}
savedViewIndex = (savedViewIndex + savedViews.size() - 1)%savedViews.size();
offsetX = std::get<0>(savedViews[savedViewIndex]);
offsetY = std::get<1>(savedViews[savedViewIndex]);
factor = std::get<2>(savedViews[savedViewIndex]);
adjustOffsetControls();
adjustZoomControls();
// updateGrid();
redraw();
}
/**
* Restores the view previously saved with
* @see saveView().
*/
void RS_GraphicView::restoreView() {
if(savedViewCount == 0) return;
savedViewCount --;
if(savedViewCount==0){
QC_ApplicationWindow::getAppWindow()->setPreviousZoomEnable(false);
}
savedViewIndex = (savedViewIndex + savedViews.size() - 1)%savedViews.size();
offsetX = std::get<0>(savedViews[savedViewIndex]);
offsetY = std::get<1>(savedViews[savedViewIndex]);
factor = std::get<2>(savedViews[savedViewIndex]);
adjustOffsetControls();
adjustZoomControls();
// updateGrid();
redraw();
}
/**
* Scrolls in the given direction.
*/
void RS_GraphicView::zoomScroll(RS2::Direction direction) {
switch (direction) {
case RS2::Up:
offsetY-=50;
break;
case RS2::Down:
offsetY+=50;
break;
case RS2::Right:
offsetX+=50;
break;
case RS2::Left:
offsetX-=50;
break;
}
adjustOffsetControls();
adjustZoomControls();
// updateGrid();
redraw();
}
/**
* Zooms the area given by v1 and v2.
*
* @param keepAspectRatio true: keeps the aspect ratio 1:1
* false: zooms exactly the selected range to the
* current graphic view
*/
void RS_GraphicView::zoomWindow(RS_Vector v1, RS_Vector v2,
bool keepAspectRatio) {
double zoomX=480.0; // Zoom for X-Axis
double zoomY=640.0; // Zoom for Y-Axis (Set smaller one)
int zoomBorder = 0;
// Switch left/right and top/bottom is necessary:
if(v1.x>v2.x) {
std::swap(v1.x,v2.x);
}
if(v1.y>v2.y) {
std::swap(v1.y,v2.y);
}
// Get zoom in X and zoom in Y:
if(v2.x-v1.x>1.0e-6) {
zoomX = getWidth() / (v2.x-v1.x);
}
if(v2.y-v1.y>1.0e-6) {
zoomY = getHeight() / (v2.y-v1.y);
}
// Take smaller zoom:
if (keepAspectRatio) {
if(zoomX<zoomY) {
if(getWidth()!=0) {
zoomX = zoomY = ((double)(getWidth()-2*zoomBorder)) /
(double)getWidth()*zoomX;
}
} else {
if(getHeight()!=0) {
zoomX = zoomY = ((double)(getHeight()-2*zoomBorder)) /
(double)getHeight()*zoomY;
}
}
}
zoomX=fabs(zoomX);
zoomY=fabs(zoomY);
// Borders in pixel after zoom
int pixLeft =(int)(v1.x*zoomX);
int pixTop =(int)(v2.y*zoomY);
int pixRight =(int)(v2.x*zoomX);
int pixBottom=(int)(v1.y*zoomY);
if( pixLeft == INT_MIN || pixLeft== INT_MAX ||
pixRight == INT_MIN || pixRight== INT_MAX ||
pixTop == INT_MIN || pixTop== INT_MAX ||
pixBottom == INT_MIN || pixBottom== INT_MAX ) {
RS_DIALOGFACTORY->commandMessage("Requested zooming factor out of range. Zooming not changed");
return;
}
saveView();
// Set new offset for zero point:
offsetX = - pixLeft + (getWidth() -pixRight +pixLeft)/2;
offsetY = - pixTop + (getHeight() -pixBottom +pixTop)/2;
factor.x = zoomX;
factor.y = zoomY;
adjustOffsetControls();
adjustZoomControls();
// updateGrid();
redraw();
}
/**
* performs autozoom
*
* @param axis include axis in zoom
* @param keepAspectRatio true: keep aspect ratio 1:1
* false: factors in x and y are stretched to the max
*/
void RS_GraphicView::zoomAuto(bool axis, bool keepAspectRatio) {
RS_DEBUG->print("RS_GraphicView::zoomAuto");
if (container) {
container->calculateBorders();
double sx, sy;
if (axis) {
sx = std::max(container->getMax().x, 0.0)
- std::min(container->getMin().x, 0.0);
sy = std::max(container->getMax().y, 0.0)
- std::min(container->getMin().y, 0.0);
} else {
sx = container->getSize().x;
sy = container->getSize().y;
}
// std::cout<<" RS_GraphicView::zoomAuto("<<axis<<","<<keepAspectRatio<<")"<<std::endl;
double fx=1., fy=1.;
unsigned short fFlags=0;
if (sx>RS_TOLERANCE) {
fx = (getWidth()-borderLeft-borderRight) / sx;
} else {
fFlags += 1; //invalid x factor
}
if (sy>RS_TOLERANCE) {
fy = (getHeight()-borderTop-borderBottom) / sy;
} else {
fFlags += 2; //invalid y factor
}
// std::cout<<"0: fx= "<<fx<<"\tfy="<<fy<<std::endl;
RS_DEBUG->print("f: %f/%f", fx, fy);
switch(fFlags){
case 1:
fx=fy;
break;
case 2:
fy=fx;
break;
case 3:
return; //do not do anything, invalid factors
default:
if (keepAspectRatio) {
fx = fy = std::min(fx, fy);
}
// break;
}
// std::cout<<"1: fx= "<<fx<<"\tfy="<<fy<<std::endl;
RS_DEBUG->print("f: %f/%f", fx, fy);
//exclude invalid factors
fFlags=0;
if (fx<RS_TOLERANCE||fx>RS_MAXDOUBLE) {
fx=1.0;
fFlags += 1;
}
if (fy<RS_TOLERANCE||fy>RS_MAXDOUBLE) {
fy=1.0;
fFlags += 2;
}
if(fFlags == 3 ) return;
saveView();
// std::cout<<"2: fx= "<<fx<<"\tfy="<<fy<<std::endl;
setFactorX(fx);
setFactorY(fy);
RS_DEBUG->print("f: %f/%f", fx, fy);
// RS_DEBUG->print("adjustZoomControls");
adjustZoomControls();
// RS_DEBUG->print("centerOffsetX");
centerOffsetX();
// RS_DEBUG->print("centerOffsetY");
centerOffsetY();
// RS_DEBUG->print("adjustOffsetControls");
adjustOffsetControls();
// RS_DEBUG->print("updateGrid");
// updateGrid();
redraw();
}
RS_DEBUG->print("RS_GraphicView::zoomAuto OK");
}