/**
* Constructor.
*/
QG_GraphicView::QG_GraphicView(QWidget* parent, Qt::WindowFlags f, RS_Document* doc)
:RS_GraphicView(parent, f)
,device("Mouse")
,curCad(new QCursor(QPixmap(":ui/cur_cad_bmp.png"), CURSOR_SIZE, CURSOR_SIZE))
,curDel(new QCursor(QPixmap(":ui/cur_del_bmp.png"), CURSOR_SIZE, CURSOR_SIZE))
,curSelect(new QCursor(QPixmap(":ui/cur_select_bmp.png"), CURSOR_SIZE, CURSOR_SIZE))
,curMagnifier(new QCursor(QPixmap(":ui/cur_glass_bmp.png"), CURSOR_SIZE, CURSOR_SIZE))
,curHand(new QCursor(QPixmap(":ui/cur_hand_bmp.png"), CURSOR_SIZE, CURSOR_SIZE))
,redrawMethod(RS2::RedrawAll)
,isSmoothScrolling(false)
{
RS_DEBUG->print("QG_GraphicView::QG_GraphicView()..");
if (doc)
{
setContainer(doc);
doc->setGraphicView(this);
setDefaultAction(new RS_ActionDefault(*doc, *this));
}
setFactorX(4.0);
setFactorY(4.0);
setBorders(10, 10, 10, 10);
setMouseTracking(true);
setFocusPolicy(Qt::NoFocus);
// SourceForge issue 45 (Left-mouse drag shrinks window)
setAttribute(Qt::WA_NoMousePropagation);
view_rect = LC_Rect(toGraph(0, 0), toGraph(getWidth(), getHeight()));
}
/**
* zooms in by factor f
*/
void RS_GraphicView::zoomIn(double f, const RS_Vector& center) {
if (f<1.0e-6) {
RS_DEBUG->print(RS_Debug::D_WARNING,
"RS_GraphicView::zoomIn: invalid factor");
return;
}
RS_Vector c = center;
if (!c.valid) {
//find mouse position
c= getMousePosition();
}
zoomWindow(
toGraph(RS_Vector(0,0))
.scale(c, RS_Vector(1.0/f,1.0/f)),
toGraph(RS_Vector(getWidth(),getHeight()))
.scale(c, RS_Vector(1.0/f,1.0/f)));
//adjustOffsetControls();
//adjustZoomControls();
// updateGrid();
redraw();
}
/**
* Handles paint events by redrawing the graphic in this view.
* usually that's very fast since we only paint the buffer we
* have from the last call..
*/
void QG_GraphicView::paintEvent(QPaintEvent *)
{
// Re-Create or get the layering pixmaps
getPixmapForView(PixmapLayer1);
getPixmapForView(PixmapLayer2);
getPixmapForView(PixmapLayer3);
// Draw Layer 1
if (redrawMethod & RS2::RedrawGrid)
{
PixmapLayer1->fill(background);
RS_PainterQt painter1(PixmapLayer1.get());
drawLayer1((RS_Painter*)&painter1);
painter1.end();
}
if (redrawMethod & RS2::RedrawDrawing)
{
view_rect = LC_Rect(toGraph(0, 0),
toGraph(getWidth(), getHeight()));
// DRaw layer 2
PixmapLayer2->fill(Qt::transparent);
RS_PainterQt painter2(PixmapLayer2.get());
if (antialiasing)
{
painter2.setRenderHint(QPainter::Antialiasing);
}
painter2.setDrawingMode(drawingMode);
painter2.setDrawSelectedOnly(false);
drawLayer2((RS_Painter*)&painter2);
painter2.setDrawSelectedOnly(true);
drawLayer2((RS_Painter*)&painter2);
painter2.end();
}
if (redrawMethod & RS2::RedrawOverlay)
{
PixmapLayer3->fill(Qt::transparent);
RS_PainterQt painter3(PixmapLayer3.get());
if (antialiasing)
{
painter3.setRenderHint(QPainter::Antialiasing);
}
drawLayer3((RS_Painter*)&painter3);
painter3.end();
}
// Finally paint the layers back on the screen, bitblk to the rescue!
RS_PainterQt wPainter(this);
wPainter.drawPixmap(0,0,*PixmapLayer1);
wPainter.drawPixmap(0,0,*PixmapLayer2);
wPainter.drawPixmap(0,0,*PixmapLayer3);
wPainter.end();
redrawMethod=RS2::RedrawNone;
}
bool QG_GraphicView::event(QEvent *event) {
#if QT_VERSION >= 0x050200
if (event->type() == QEvent::NativeGesture) {
QNativeGestureEvent *nge = static_cast<QNativeGestureEvent *>(event);
if (nge->gestureType() == Qt::ZoomNativeGesture) {
double v = nge->value();
RS2::ZoomDirection direction;
double factor;
if (v < 0) {
direction = RS2::Out;
factor = 1-v;
} else {
direction = RS2::In;
factor = 1+v;
}
// It seems the NativeGestureEvent::pos() incorrectly reports global coordinates
QPoint g = mapFromGlobal(nge->globalPos());
RS_Vector mouse = toGraph(RS_Vector(g.x(), g.y()));
setCurrentAction(new RS_ActionZoomIn(*container, *this, direction,
RS2::Both, mouse, factor));
}
return true;
}
#endif
return QWidget::event(event);
}
/**
* mouse wheel event. zooms in/out or scrolls when
* shift or ctrl is pressed.
*/
void QG_GraphicView::wheelEvent(QWheelEvent *e) {
//RS_DEBUG->print("wheel: %d", e->delta());
//printf("state: %d\n", e->state());
//printf("ctrl: %d\n", Qt::ControlButton);
if (container==NULL) {
return;
}
RS_Vector mouse = toGraph(RS_Vector(e->x(), e->y()));
bool scroll = false;
RS2::Direction direction = RS2::Up;
// scroll up / down:
if (e->modifiers()==Qt::ControlModifier) {
scroll = true;
if (e->delta()>0) {
direction = RS2::Up;
} else {
direction = RS2::Down;
}
}
// scroll left / right:
else if (e->modifiers()==Qt::ShiftModifier) {
scroll = true;
if (e->delta()>0) {
direction = RS2::Right;
} else {
direction = RS2::Left;
}
}
if (scroll) {
setCurrentAction(new RS_ActionZoomScroll(direction,
*container, *this));
}
// zoom in / out:
else if (e->modifiers()==0) {
if (e->delta()>0) {
setCurrentAction(new RS_ActionZoomIn(*container, *this,
RS2::In, RS2::Both,
mouse));
} else {
setCurrentAction(new RS_ActionZoomIn(*container, *this,
RS2::Out, RS2::Both,
mouse));
}
}
redraw();
e->accept();
}
RS_Vector QG_GraphicView::getMousePosition() const
{
//find mouse position
QPoint vp=mapFromGlobal(QCursor::pos());
//if cursor is not on widget, return the widget center position
if(!rect().contains(vp))
vp=QPoint(width()/2, height()/2);
return toGraph(vp.x(), vp.y());
}
void RS_GraphicView::mouseMoveEvent(QMouseEvent* e) {
RS_DEBUG->print("RS_GraphicView::mouseMoveEvent begin");
RS_Graphic* graphic = nullptr;
if (container->rtti()==RS2::EntityGraphic) {
graphic = (RS_Graphic*)container;
}
RS_DEBUG->print("RS_GraphicView::mouseMoveEvent 001");
if (e) {
mx = e->x();
my = e->y();
}
RS_DEBUG->print("RS_GraphicView::mouseMoveEvent 002");
if (eventHandler) {
eventHandler->mouseMoveEvent(e);
}
RS_DEBUG->print("RS_GraphicView::mouseMoveEvent 003");
if ( ((!eventHandler) || !eventHandler->hasAction()) &&
(graphic))
{
RS_Vector mouse = toGraph(RS_Vector(mx, my));
RS_Vector relMouse = mouse - getRelativeZero();
if (RS_DIALOGFACTORY)
RS_DIALOGFACTORY->updateCoordinateWidget(mouse, relMouse);
}
RS_DEBUG->print("RS_GraphicView::mouseMoveEvent end");
}
/**
* mouse wheel event. zooms in/out or scrolls when
* shift or ctrl is pressed.
*/
void QG_GraphicView::wheelEvent(QWheelEvent *e) {
//RS_DEBUG->print("wheel: %d", e->delta());
//printf("state: %d\n", e->state());
//printf("ctrl: %d\n", Qt::ControlButton);
if (container==NULL) {
return;
}
RS_Vector mouse = toGraph(RS_Vector(e->x(), e->y()));
#if QT_VERSION >= 0x050200
QPoint numPixels = e->pixelDelta();
// high-resolution scrolling triggers Pan instead of Zoom logic
isSmoothScrolling |= !numPixels.isNull();
if (isSmoothScrolling) {
if (e->phase() == Qt::ScrollEnd) isSmoothScrolling = false;
if (!numPixels.isNull()) {
if (e->modifiers()==Qt::ControlModifier) {
// Hold ctrl to zoom. 1 % per pixel
double v = -numPixels.y() / 100.;
RS2::ZoomDirection direction;
double factor;
if (v < 0) {
direction = RS2::Out; factor = 1-v;
} else {
direction = RS2::In; factor = 1+v;
}
setCurrentAction(new RS_ActionZoomIn(*container, *this, direction,
RS2::Both, mouse, factor));
} else {
// otherwise, scroll
setCurrentAction(new RS_ActionZoomScroll(numPixels.x(), numPixels.y(),
*container, *this));
}
redraw();
}
e->accept();
return;
}
#endif
if (e->delta() == 0) {
// A zero delta event occurs when smooth scrolling is ended. Ignore this
e->accept();
return;
}
bool scroll = false;
RS2::Direction direction = RS2::Up;
// scroll up / down:
if (e->modifiers()==Qt::ControlModifier) {
scroll = true;
switch(e->orientation()){
case Qt::Horizontal:
direction=(e->delta()>0)?RS2::Left:RS2::Right;
break;
default:
case Qt::Vertical:
direction=(e->delta()>0)?RS2::Up:RS2::Down;
}
}
// scroll left / right:
else if (e->modifiers()==Qt::ShiftModifier) {
scroll = true;
switch(e->orientation()){
case Qt::Horizontal:
direction=(e->delta()>0)?RS2::Up:RS2::Down;
break;
default:
case Qt::Vertical:
direction=(e->delta()>0)?RS2::Left:RS2::Right;
}
}
if (scroll) {
setCurrentAction(new RS_ActionZoomScroll(direction,
*container, *this));
}
// zoom in / out:
else if (e->modifiers()==0) {
if (e->delta()>0) {
setCurrentAction(new RS_ActionZoomIn(*container, *this,
RS2::In, RS2::Both,
mouse));
} else {
setCurrentAction(new RS_ActionZoomIn(*container, *this,
RS2::Out, RS2::Both,
mouse));
}
}
redraw();
e->accept();
}
/**
* mouse wheel event. zooms in/out or scrolls when
* shift or ctrl is pressed.
*/
void QG_GraphicView::wheelEvent(QWheelEvent *e) {
//RS_DEBUG->print("wheel: %d", e->delta());
//printf("state: %d\n", e->state());
//printf("ctrl: %d\n", Qt::ControlButton);
if (container==NULL) {
return;
}
RS_Vector mouse = toGraph(e->x(), e->y());
if (device == "Trackpad")
{
QPoint numPixels = e->pixelDelta();
// high-resolution scrolling triggers Pan instead of Zoom logic
isSmoothScrolling |= !numPixels.isNull();
if (isSmoothScrolling)
{
if (e->phase() == Qt::ScrollEnd) isSmoothScrolling = false;
}
else // Trackpads that without high-resolution scrolling
// e.g. libinput-XWayland trackpads
{
numPixels = e->angleDelta() / 4;
}
if (!numPixels.isNull())
{
if (e->modifiers()==Qt::ControlModifier)
{
RS_SETTINGS->beginGroup("/Defaults");
bool invZoom = (RS_SETTINGS->readNumEntry("/InvertZoomDirection", 0) == 1);
RS_SETTINGS->endGroup();
// Hold ctrl to zoom. 1 % per pixel
double v = (invZoom) ? (numPixels.y() / 100.) : (-numPixels.y() / 100.);
RS2::ZoomDirection direction;
double factor;
if (v < 0) {
direction = RS2::Out; factor = 1-v;
} else {
direction = RS2::In; factor = 1+v;
}
setCurrentAction(new RS_ActionZoomIn(*container, *this, direction,
RS2::Both, &mouse, factor));
}
else
{
RS_SETTINGS->beginGroup("/Defaults");
bool inv_h = (RS_SETTINGS->readNumEntry("/WheelScrollInvertH", 0) == 1);
bool inv_v = (RS_SETTINGS->readNumEntry("/WheelScrollInvertV", 0) == 1);
RS_SETTINGS->endGroup();
int hDelta = (inv_h) ? -numPixels.x() : numPixels.x();
int vDelta = (inv_v) ? -numPixels.y() : numPixels.y();
// scroll by scrollbars: issue #479 (it has its own issues)
if (scrollbars)
{
hScrollBar->setValue(hScrollBar->value() - hDelta);
vScrollBar->setValue(vScrollBar->value() - vDelta);
}
else
{
setCurrentAction(new RS_ActionZoomScroll(hDelta, vDelta,
*container, *this));
}
}
redraw();
}
e->accept();
return;
}
if (e->delta() == 0) {
// A zero delta event occurs when smooth scrolling is ended. Ignore this
e->accept();
return;
}
bool scroll = false;
RS2::Direction direction = RS2::Up;
// scroll up / down:
if (e->modifiers()==Qt::ControlModifier) {
scroll = true;
switch(e->orientation()){
case Qt::Horizontal:
direction=(e->delta()>0)?RS2::Left:RS2::Right;
break;
default:
case Qt::Vertical:
direction=(e->delta()>0)?RS2::Up:RS2::Down;
}
}
// scroll left / right:
else if (e->modifiers()==Qt::ShiftModifier) {
scroll = true;
switch(e->orientation()){
case Qt::Horizontal:
direction=(e->delta()>0)?RS2::Up:RS2::Down;
break;
default:
case Qt::Vertical:
direction=(e->delta()>0)?RS2::Left:RS2::Right;
}
}
if (scroll && scrollbars) {
//scroll by scrollbars: issue #479
RS_SETTINGS->beginGroup("/Defaults");
bool inv_h = (RS_SETTINGS->readNumEntry("/WheelScrollInvertH", 0) == 1);
bool inv_v = (RS_SETTINGS->readNumEntry("/WheelScrollInvertV", 0) == 1);
RS_SETTINGS->endGroup();
int delta;
switch(direction){
case RS2::Left:
case RS2::Right:
delta = (inv_h) ? -e->delta() : e->delta();
hScrollBar->setValue(hScrollBar->value()+delta);
break;
default:
delta = (inv_v) ? -e->delta() : e->delta();
vScrollBar->setValue(vScrollBar->value()+delta);
}
// setCurrentAction(new RS_ActionZoomScroll(direction,
// *container, *this));
}
// zoom in / out:
else if (e->modifiers()==0) {
/*
* The zoomFactor effects how quickly the scroll wheel will zoom in & out.
*
* Benchmarks:
* 1.250 - the original; fast & usable, but seems a choppy & a bit 'jarring'
* 1.175 - still a bit choppy
* 1.150 - smoother than the original, but still 'quick' enough for good navigation.
* 1.137 - seems to work well for me
* 1.125 - about the lowest that would be acceptable and useful, a tad on the slow side for me
* 1.100 - a very slow & deliberate zooming, but feels very "cautious", "controlled", "safe", and "precise".
* 1.000 - goes nowhere. :)
*/
const double zoomFactor=1.137;
RS_Vector mainViewCenter = toGraph(getWidth()/2, getHeight()/2);
RS_SETTINGS->beginGroup("/Defaults");
bool invZoom = (RS_SETTINGS->readNumEntry("/InvertZoomDirection", 0) == 1);
RS_SETTINGS->endGroup();
if ((e->delta()>0 && !invZoom) || (e->delta()<0 && invZoom)) {
const double zoomInOvershoot=1.20;
RS_Vector effect{mouse};
{
effect-=mainViewCenter;
effect.scale(zoomInOvershoot);
effect+=mainViewCenter;
}
setCurrentAction(new RS_ActionZoomIn(*container, *this,
RS2::In, RS2::Both,
&effect,
zoomFactor
));
} else {
const double zoomOutUndershoot=0.30;
RS_Vector effect{mouse};
{
effect-=mainViewCenter;
effect.scale(zoomOutUndershoot);
effect+=mainViewCenter;
}
setCurrentAction(new RS_ActionZoomIn(*container, *this,
RS2::Out, RS2::Both,
&effect,
zoomFactor
));
}
}
redraw();
QMouseEvent* event = new QMouseEvent(QEvent::MouseMove,
QPoint(e->x(), e->y()),
Qt::NoButton, Qt::NoButton,
Qt::NoModifier);
eventHandler->mouseMoveEvent(event);
delete event;
e->accept();
}
