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Cap selection area to screen and graph bounds

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This commit is contained in:
Mark Watkins 2011-08-25 20:59:49 +10:00
parent 58f1933dcd
commit f8f9ae59af
1 changed files with 33 additions and 23 deletions
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26
Graphs/gGraphView.cpp
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@ -344,6 +344,8 @@ void gGraph::mouseMoveEvent(QMouseEvent * event)
qDebug() << m_title << "Moved" << x << y << left << right << top << bottom << m_width << m_height;
int a1=MIN(x,x2);
int a2=MAX(x,x2);
if (a1<m_marginleft+left) a1=m_marginleft+left;
if (a2>w) a2=w;
m_selecting_area=true;
m_selection=QRect(a1-m_marginleft,0,a2-a1,m_height);
m_graphview->updateGL();
@ -380,20 +382,15 @@ void gGraph::mouseReleaseEvent(QMouseEvent * event)
int w=m_width-(m_graphview->titleWidth+m_marginleft+left+right+m_marginright);
int h=m_height-(bottom+m_marginbottom);
int x2=m_graphview->pointClicked().x(),y2=m_graphview->pointClicked().y();
if (m_selecting_area) {
m_selecting_area=false;
m_selection.setWidth(0);
if (x>left+m_marginleft && x<w+m_marginleft+left && y>top+m_margintop && y<h) { // main area
if (event->button() & Qt::RightButton) {
ZoomX(2,x);
// zoom out.
} else if (event->button() & Qt::LeftButton) {
if (abs(x-x2)<4) {
ZoomX(0.5,x);
} else {
x-=left+m_marginleft;
y-=top+m_margintop;
x2-=left+m_marginleft;
y2-=top+m_margintop;
if (x<0) x=0;
if (x>w) x=w;
if (!m_blockzoom) {
double xx=max_x-min_x;
double xmult=xx/double(w);
@ -401,6 +398,7 @@ void gGraph::mouseReleaseEvent(QMouseEvent * event)
qint64 j2=min_x+xmult*x2;
qint64 a1=MIN(j1,j2)
qint64 a2=MAX(j1,j2)
if (a2>rmax_x) a2=rmax_x;
m_graphview->SetXBounds(a1,a2);
} else {
double xx=rmax_x-rmin_x;
@ -409,8 +407,19 @@ void gGraph::mouseReleaseEvent(QMouseEvent * event)
qint64 j2=rmin_x+xmult*x2;
qint64 a1=MIN(j1,j2)
qint64 a2=MAX(j1,j2)
if (a2>rmax_x) a2=rmax_x;
m_graphview->SetXBounds(a1,a2);
}
return;
}
if (x>left+m_marginleft && x<w+m_marginleft+left && y>top+m_margintop && y<h) { // main area
if (event->button() & Qt::RightButton) {
ZoomX(2,x);
// zoom out.
} else if (event->button() & Qt::LeftButton) {
if (abs(x-x2)<4) {
ZoomX(0.5,x);
} else {
}
}
qDebug() << m_title << "Released" << min_x << max_x << x << y << x2 << y2 << left << right << top << bottom << m_width << m_height;
@ -932,6 +941,7 @@ void gGraphView::mouseMoveEvent(QMouseEvent * event)
this->setCursor(Qt::ArrowCursor);
QPoint p(x-titleWidth,y-py);
QMouseEvent e(event->type(),p,event->button(),event->buttons(),event->modifiers());
m_graphs[i]->mouseMoveEvent(&e);
} else {
this->setCursor(Qt::OpenHandCursor);