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dd8a1299b9
OSCAR-code/Graphs/gGraphView.cpp
Mark Watkins dd8a1299b9 Some more mousey tests
2011-08-27 15:31:53 +10:00

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#include <cmath>
#include "gGraphView.h"
Layer::Layer(ChannelID code)
{
m_code = code;
m_visible = true;
m_movable = false;
m_day=NULL;
m_miny=m_maxy=0;
m_minx=m_maxx=0;
m_order=0;
m_width=m_height=0;
m_X=m_Y=0;
m_position=LayerCenter;
}
Layer::~Layer()
{
}
void Layer::SetDay(Day * d)
{
m_day=d;
if (!d) return;
m_minx=d->first(m_code);
m_maxx=d->last(m_code);
m_miny=d->min(m_code);
m_maxy=d->max(m_code);
}
bool Layer::isEmpty()
{
if (m_day && (m_day->count(m_code)!=0))
return false;
return true;
}
void Layer::setLayout(LayerPosition position, short width, short height, short order)
{
m_position=position;
m_width=width;
m_height=height;
m_order=order;
}
LayerGroup::LayerGroup() :
Layer(EmptyChannel)
{
}
LayerGroup::~LayerGroup()
{
}
bool LayerGroup::isEmpty()
{
if (!m_day)
return true;
bool empty=true;
for (int i=0;i<layers.size();i++) {
if (layers[i]->isEmpty()) {
empty=false;
break;
}
}
return empty;
}
void LayerGroup::SetDay(Day * d)
{
for (int i=0;i<layers.size();i++) {
layers[i]->SetDay(d);
}
m_day=d;
}
void LayerGroup::AddLayer(Layer *l)
{
layers.push_back(l);
}
qint64 LayerGroup::Minx()
{
bool first=true;
qint64 m=0,t;
for (int i=0;i<layers.size();i++) {
t=layers[i]->Minx();
if (!t) continue;
if (first) {
m=t;
first=false;
} else
if (m>t) m=t;
}
return m;
}
qint64 LayerGroup::Maxx()
{
bool first=true;
qint64 m=0,t;
for (int i=0;i<layers.size();i++) {
t=layers[i]->Maxx();
if (!t) continue;
if (first) {
m=t;
first=false;
} else
if (m<t) m=t;
}
return m;
}
EventDataType LayerGroup::Miny()
{
bool first=true;
EventDataType m=0,t;
for (int i=0;i<layers.size();i++) {
t=layers[i]->Miny();
if (t==layers[i]->Minx()) continue;
if (first) {
m=t;
first=false;
} else {
if (m>t) m=t;
}
}
return m;
}
EventDataType LayerGroup::Maxy()
{
bool first=true;
EventDataType m=0,t;
for (int i=0;i<layers.size();i++) {
t=layers[i]->Maxy();
if (t==layers[i]->Miny()) continue;
if (first) {
m=t;
first=false;
} else
if (m<t) m=t;
}
return m;
}
gGraph::gGraph(gGraphView *graphview,QString title,int height,short group) :
m_graphview(graphview),
m_title(title),
m_height(height),
m_visible(true)
{
m_min_height=80;
m_layers.clear();
if (graphview) {
graphview->AddGraph(this,group);
} else {
qWarning() << "gGraph created without a gGraphView container.. Naughty programmer!! Bad!!!";
}
m_margintop=10;
m_marginbottom=5;
m_marginleft=5;
m_marginright=10;
m_selecting_area=m_blockzoom=false;
}
gGraph::~gGraph()
{
}
bool gGraph::isEmpty()
{
bool empty=true;
for (QVector<Layer *>::iterator l=m_layers.begin();l!=m_layers.end();l++) {
if (!(*l)->isEmpty()) {
empty=false;
break;
}
}
return empty;
}
void gGraph::invalidate()
{ // this may not be necessary, as scrollbar & resize issues a full redraw..
//m_lastbounds.setWidth(m_graphview->width());
m_lastbounds.setY(m_graphview->findTop(this));
m_lastbounds.setX(gGraphView::titleWidth);
m_lastbounds.setHeight(m_height * m_graphview->scaleY());
m_lastbounds.setWidth(m_graphview->width()-gGraphView::titleWidth);
int i=0;
//m_lastbounds.setHeight(0);
}
void gGraph::repaint()
{
if (m_lastbounds.height()>0) {
//glScissor(0,m_lastbounds.y(),m_lastbounds.width(),m_lastbounds.height());
// m_graphview->swapBuffers(); // how fast is this??
//glEnable(GL_SCISSOR_BOX);
glBegin(GL_QUADS);
glColor4f(1,1,1,1.0); // Gradient End
glVertex2i(0,m_lastbounds.y());
glVertex2i(gGraphView::titleWidth,m_lastbounds.y());
glVertex2i(gGraphView::titleWidth,m_lastbounds.y()+height());
glVertex2i(0,m_lastbounds.y()+height());
glEnd();
paint(m_lastbounds.x(),m_lastbounds.y(),m_lastbounds.width(),m_lastbounds.height());
m_graphview->swapBuffers();
//glDisable(GL_SCISSOR_BOX);
} else {
qDebug() << "Wanted to redraw graph" << m_title << "but previous bounds were invalid.. Issuing a slower full redraw instead. Todo: Find out why.";
m_graphview->updateGL();
}
}
void gGraph::qglColor(QColor col)
{
m_graphview->qglColor(col);
}
void gGraph::renderText(QString text, int x,int y, float angle, QColor color, QFont *font)
{
m_graphview->AddTextQue(text,x,y,angle,color,font);
}
void gGraph::paint(int originX, int originY, int width, int height)
{
m_lastbounds=QRect(originX,originY,width,height);
glBegin(GL_QUADS);
glColor4f(1,1,1,1.0); // Gradient End
glVertex2i(originX,originY);
glVertex2i(originX+width,originY);
glColor4f(1,1,1.0,1.0); // Gradient End
glVertex2i(originX+width,originY+height);
glVertex2i(originX,originY+height);
glEnd();
glColor4f(0,0,0,1);
renderText(title(),20,originY+height/2,90);
left=0,right=0,top=0,bottom=0;
int tmp;
originX+=m_marginleft;
originY+=m_margintop;
width-=m_marginleft+m_marginright;
height-=m_margintop+m_marginbottom;
for (int i=0;i<m_layers.size();i++) {
Layer *ll=m_layers[i];
tmp=ll->Height();
if (ll->position()==LayerTop) top+=tmp;
if (ll->position()==LayerBottom) bottom+=tmp;
}
for (int i=0;i<m_layers.size();i++) {
Layer *ll=m_layers[i];
tmp=ll->Width();
if (ll->position()==LayerLeft) {
ll->paint(*this,originX+left,originY+top,tmp,height-top-bottom);
left+=tmp;
}
if (ll->position()==LayerRight) {
right+=tmp;
ll->paint(*this,originX+width-right,originY+top,tmp,height-top-bottom);
}
}
bottom=0; top=0;
for (int i=0;i<m_layers.size();i++) {
Layer *ll=m_layers[i];
tmp=ll->Height();
if (ll->position()==LayerTop) {
ll->paint(*this,originX+left,originY+top,width-left-right,tmp);
top+=tmp;
}
if (ll->position()==LayerBottom) {
bottom+=tmp;
ll->paint(*this,originX+left,originY+height-bottom,width-left-right,tmp);
}
}
for (int i=0;i<m_layers.size();i++) {
Layer *ll=m_layers[i];
if (ll->position()==LayerCenter) {
ll->paint(*this,originX+left,originY+top,width-left-right,height-top-bottom);
}
}
if (m_selection.width()>0 && m_selecting_area) {
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
glBegin(GL_QUADS);
glColor4ub(128,128,128,128);
glVertex2i(originX+m_selection.x(),originY+top);
glVertex2i(originX+m_selection.x()+m_selection.width(),originY+top);
glColor4ub(128,128,255,128);
glVertex2i(originX+m_selection.x()+m_selection.width(),originY+height-top-bottom);
glVertex2i(originX+m_selection.x(),originY+height-top-bottom);
glEnd();
glDisable(GL_BLEND);
}
}
void gGraph::AddLayer(Layer * l,LayerPosition position, short width, short height, short order, bool movable, short x, short y)
{
l->setLayout(position,width,height,order);
l->setMovable(movable);
l->setPos(x,y);
m_layers.push_back(l);
}
void gGraph::mouseMoveEvent(QMouseEvent * event)
{
// qDebug() << m_title << "Move" << event->pos() << m_graphview->pointClicked();
int y=event->pos().y();
int x=event->pos().x();
int x2=m_graphview->pointClicked().x(),y2=m_graphview->pointClicked().y();
int w=m_lastbounds.width()-(right+m_marginright);
int h=m_lastbounds.height()-(bottom+m_marginbottom);
double xx=max_x-min_x;
double xmult=xx/w;
m_selecting_area=false;
if (m_graphview->m_selected_graph==this) {
if (event->buttons() & Qt::LeftButton) {
//qDebug() << m_title << "Moved" << x << y << left << right << top << bottom << m_width << h;
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-1,0,a2-a1,m_lastbounds.height());
m_graphview->updateGL();
} else if (event->buttons() & Qt::RightButton) {
m_graphview->setPointClicked(event->pos());
x-=left+m_marginleft;
x2-=left+m_marginleft;
//int a1=MIN(x,x2);
//int a2=MAX(x,x2);
//if (a1<m_marginleft+left) a1=m_marginleft+left;
//if (a2>w) a2=w;
if (!m_blockzoom) {
xx=max_x-min_x;
w-=m_marginleft+left;
xmult=xx/double(w);
qint64 j1=xmult*x;
qint64 j2=xmult*x2;
qint64 jj=j2-j1;
min_x+=jj;
max_x+=jj;
if (min_x<rmin_x) {
min_x=rmin_x;
max_x=rmin_x+xx;
}
if (max_x>rmax_x) {
max_x=rmax_x;
min_x=rmax_x-xx;
}
//if (a2>rmax_x) a2=rmax_x;
m_graphview->SetXBounds(min_x,max_x,m_group);
} else {
qint64 qq=rmax_x-rmin_x;
xx=max_x-min_x;
if (xx==qq) xx=1800000;
w-=m_marginleft+left;
xmult=qq/double(w);
qint64 j1=(xmult*x);
min_x=rmin_x+j1-(xx/2);
max_x=min_x+xx;
if (min_x<rmin_x) {
min_x=rmin_x;
max_x=rmin_x+xx;
}
if (max_x>rmax_x) {
max_x=rmax_x;
min_x=rmax_x-xx;
}
m_graphview->SetXBounds(min_x,max_x,m_group);
}
}
}
if (x>left+m_marginleft && x<m_lastbounds.width()-(right+m_marginright) && y>top+m_margintop && y<m_lastbounds.height()-(bottom+m_marginbottom)) { // main area
x-=left+m_marginleft;
y-=top+m_margintop;
//qDebug() << m_title << "Moved" << x << y << left << right << top << bottom << m_width << m_height;
}
}
void gGraph::mousePressEvent(QMouseEvent * event)
{
int y=event->pos().y();
int x=event->pos().x();
int w=m_lastbounds.width()-(right+m_marginright);
int h=m_lastbounds.height()-(bottom+m_marginbottom);
int x2,y2;
double xx=max_x-min_x;
double xmult=xx/w;
if (x>left+m_marginleft && x<m_lastbounds.width()-(right+m_marginright) && y>top+m_margintop && y<m_lastbounds.height()-(bottom+m_marginbottom)) { // main area
x-=left+m_marginleft;
y-=top+m_margintop;
}
//qDebug() << m_title << "Clicked" << x << y << left << right << top << bottom << m_width << m_height;
}
void gGraph::mouseReleaseEvent(QMouseEvent * event)
{
int y=event->pos().y();
int x=event->pos().x();
int w=m_lastbounds.width()-(m_marginleft+left+right+m_marginright);
int h=m_lastbounds.height()-(bottom+m_marginbottom);
int x2=m_graphview->pointClicked().x(),y2=m_graphview->pointClicked().y();
//qDebug() << m_title << "Released" << min_x << max_x << x << y << x2 << y2 << left << right << top << bottom << m_width << m_height;
if (m_selecting_area) {
m_selecting_area=false;
m_selection.setWidth(0);
if (m_graphview->horizTravel()>4) {
x-=left+m_marginleft;
y-=top+m_margintop;
x2-=left+m_marginleft;
y2-=top+m_margintop;
if (x<0) x=0;
if (x2<0) x2=0;
if (x>w) x=w;
if (x2>w) x2=w;
if (!m_blockzoom) {
double xx=max_x-min_x;
double xmult=xx/double(w);
qint64 j1=min_x+xmult*x;
qint64 j2=min_x+xmult*x2;
qint64 a1=MIN(j1,j2)
qint64 a2=MAX(j1,j2)
//if (a1<rmin_x) a1=rmin_x;
if (a2>rmax_x) a2=rmax_x;
m_graphview->SetXBounds(a1,a2,m_group);
} else {
double xx=rmax_x-rmin_x;
double xmult=xx/double(w);
qint64 j1=rmin_x+xmult*x;
qint64 j2=rmin_x+xmult*x2;
qint64 a1=MIN(j1,j2)
qint64 a2=MAX(j1,j2)
//if (a1<rmin_x) a1=rmin_x;
if (a2>rmax_x) a2=rmax_x;
m_graphview->SetXBounds(a1,a2,m_group);
}
return;
} else m_graphview->updateGL();
}
if ((m_graphview->horizTravel()<4) && (x>left+m_marginleft && x<w+m_marginleft+left && y>top+m_margintop && y<h)) { // normal click in main area
if (!m_blockzoom) {
if (event->button() & Qt::RightButton) {
ZoomX(1.33,x); // Zoon out
return;
} else if (event->button() & Qt::LeftButton) {
ZoomX(0.75,x); // zoom in.
return;
}
} else {
x-=left+m_marginleft;
y-=top+m_margintop;
//w-=m_marginleft+left;
double qq=rmax_x-rmin_x;
double xmult,j1;
double xx=max_x-min_x;
if (xx==qq) xx=1800000;
xmult=qq/double(w);
j1=(xmult*x);
min_x=rmin_x+j1-(xx/2);
max_x=min_x+xx;
if (min_x<rmin_x) {
min_x=rmin_x;
max_x=rmin_x+xx;
}
if (max_x>rmax_x) {
max_x=rmax_x;
min_x=rmax_x-xx;
}
m_graphview->SetXBounds(min_x,max_x,m_group);
}
}
//m_graphview->updateGL();
}
void gGraph::wheelEvent(QWheelEvent * event)
{
//qDebug() << m_title << "Wheel" << event->x() << event->y() << event->delta();
//int y=event->pos().y();
int x=event->pos().x()-m_graphview->titleWidth;//(left+m_marginleft);
if (event->delta()>0) {
ZoomX(0.75,x);
} else {
ZoomX(1.5,x);
}
}
void gGraph::mouseDoubleClickEvent(QMouseEvent * event)
{
//mousePressEvent(event);
//mouseReleaseEvent(event);
int y=event->pos().y();
int x=event->pos().x();
int w=m_lastbounds.width()-(m_marginleft+left+right+m_marginright);
int h=m_lastbounds.height()-(bottom+m_marginbottom);
int x2=m_graphview->pointClicked().x(),y2=m_graphview->pointClicked().y();
if ((m_graphview->horizTravel()<4) && (x>left+m_marginleft && x<w+m_marginleft+left && y>top+m_margintop && y<h)) { // normal click in main area
if (event->button() & Qt::RightButton) {
ZoomX(1.66,x); // Zoon out
return;
} else if (event->button() & Qt::LeftButton) {
ZoomX(0.75/2.0,x); // zoom in.
return;
}
}
//mousePressEvent(event);
//mouseReleaseEvent(event);
//qDebug() << m_title << "Double Clicked" << event->x() << event->y();
}
void gGraph::keyPressEvent(QKeyEvent * event)
{
qDebug() << m_title << "Key Pressed.. implement me" << event->key();
}
void gGraph::ZoomX(double mult,int origin_px)
{
int width=m_lastbounds.width()-(m_marginleft+left+right+m_marginright);
if (origin_px==0) origin_px=(width/2); else origin_px-=m_marginleft+left;
if (origin_px<0) origin_px=0;
if (origin_px>width) origin_px=width;
// Okay, I want it to zoom in centered on the mouse click area..
// Find X graph position of mouse click
// find current zoom width
// apply zoom
// center on point found in step 1.
qint64 min=min_x;
qint64 max=max_x;
double hardspan=rmax_x-rmin_x;
double span=max-min;
double ww=double(origin_px) / double(width);
double origin=ww * span;
//double center=0.5*span;
//double dist=(origin-center);
double q=span*mult;
if (q>hardspan) q=hardspan;
if (q<hardspan/400.0) q=hardspan/400.0;
min=min+origin-(q*ww);
max=min+q;
if (min<rmin_x) {
min=rmin_x;
max=min+q;
}
if (max>rmax_x) {
max=rmax_x;
min=max-q;
}
m_graphview->SetXBounds(min,max,m_group);
//updateSelectionTime(max-min);
}
void gGraph::DrawTextQue()
{
m_graphview->DrawTextQue();
}
// margin recalcs..
void gGraph::resize(int width, int height)
{
//m_height=height;
//m_width=width;
}
qint64 gGraph::MinX()
{
bool first=true;
qint64 val=0,tmp;
for (QVector<Layer *>::iterator l=m_layers.begin();l!=m_layers.end();l++) {
if ((*l)->isEmpty()) continue;
tmp=(*l)->Minx();
if (!tmp) continue;
if (first) {
val=tmp;
first=false;
} else {
if (tmp < val) val = tmp;
}
}
if (val) rmin_x=val;
return val;
}
qint64 gGraph::MaxX()
{
bool first=true;
qint64 val=0,tmp;
for (QVector<Layer *>::iterator l=m_layers.begin();l!=m_layers.end();l++) {
if ((*l)->isEmpty()) continue;
tmp=(*l)->Maxx();
if (!tmp) continue;
if (first) {
val=tmp;
first=false;
} else {
if (tmp > val) val = tmp;
}
}
if (val) rmax_x=val;
return val;
}
EventDataType gGraph::MinY()
{
bool first=true;
EventDataType val=0,tmp;
for (QVector<Layer *>::iterator l=m_layers.begin();l!=m_layers.end();l++) {
if ((*l)->isEmpty()) continue;
tmp=(*l)->Miny();
if (tmp==0 && tmp==(*l)->Maxy()) continue;
if (first) {
val=tmp;
first=false;
} else {
if (tmp < val) val = tmp;
}
}
return rmin_y=val;
}
EventDataType gGraph::MaxY()
{
bool first=true;
EventDataType val=0,tmp;
for (QVector<Layer *>::iterator l=m_layers.begin();l!=m_layers.end();l++) {
if ((*l)->isEmpty()) continue;
tmp=(*l)->Maxy();
if (tmp==0 && tmp==(*l)->Miny()) continue;
if (first) {
val=tmp;
first=false;
} else {
if (tmp > val) val = tmp;
}
}
return rmax_y=val;
}
void gGraph::SetMinX(qint64 v)
{
min_x=v;
}
void gGraph::SetMaxX(qint64 v)
{
max_x=v;
}
void gGraph::SetMinY(EventDataType v)
{
min_y=v;
}
void gGraph::SetMaxY(EventDataType v)
{
max_y=v;
}
// Sets a new Min & Max X clipping, refreshing the graph and all it's layers.
void gGraph::SetXBounds(qint64 minx, qint64 maxx)
{
min_x=minx;
max_x=maxx;
//repaint();
//m_graphview->updateGL();
}
int gGraph::flipY(int y)
{
return m_graphview->height()-y;
}
void gGraph::ResetBounds()
{
min_x=MinX();
max_x=MaxX();
min_y=MinY();
max_y=MaxY();
}
gGraphView::gGraphView(QWidget *parent) :
QGLWidget(parent),
m_offsetY(0),m_offsetX(0),m_scaleY(1.0),m_scrollbar(NULL)
{
m_sizer_index=m_graph_index=0;
m_textque_items=0;
m_button_down=m_graph_dragging=m_sizer_dragging=false;
m_lastypos=m_lastxpos=0;
m_horiz_travel=0;
this->setMouseTracking(true);
InitGraphs();
}
gGraphView::~gGraphView()
{
for (int i=0;i<m_graphs.size();i++) {
delete m_graphs[i];
}
m_graphs.clear();
if (m_scrollbar) {
this->disconnect(SIGNAL(sliderMoved(int)),this);
}
}
void gGraphView::DrawTextQue()
{
glPushAttrib(GL_COLOR_BUFFER_BIT);
glFlush();
//glEnable(GL_BLEND);
QPainter painter(this);
for (int i=0;i<m_textque_items;i++) {
// GL Font drawing is ass in Qt.. :(
TextQue & q=m_textque[i];
QBrush b(q.color);
painter.setBrush(b);
painter.setFont(*q.font);
if (q.angle==0) {
painter.drawText(q.x, q.y, q.text);
} else {
float w,h;
GetTextExtent(q.text, w, h, q.font);
painter.translate(q.x, q.y);
painter.rotate(-q.angle);
painter.drawText(floor(-w/2.0), floor(-h/2.0), q.text);
painter.rotate(+q.angle);
painter.translate(-q.x, -q.y);
}
q.text.clear();
//q.text.squeeze();
}
painter.end();
glPopAttrib();
//qDebug() << "rendered" << m_textque_items << "text items";
m_textque_items=0;
}
void gGraphView::AddTextQue(QString & text, short x, short y, float angle, QColor & color, QFont * font)
{
if (m_textque_items>=textque_max) {
DrawTextQue();
}
TextQue & q=m_textque[m_textque_items];
q.text=text;
q.x=x;
q.y=y;
q.angle=angle;
q.color=color;
q.font=font;
m_textque_items++;
}
void gGraphView::AddGraph(gGraph *g,short group)
{
if (!m_graphs.contains(g)) {
g->setGroup(group);
m_graphs.push_back(g);
updateScrollBar();
}
}
float gGraphView::totalHeight()
{
float th=0;
for (int i=0;i<m_graphs.size();i++) {
if (m_graphs[i]->isEmpty()) continue;
th += m_graphs[i]->height() + graphSpacer;
}
return ceil(th);
}
float gGraphView::findTop(gGraph * graph)
{
float th=-m_offsetY;
for (int i=0;i<m_graphs.size();i++) {
if (m_graphs[i]==graph) break;
if (m_graphs[i]->isEmpty()) continue;
th += m_graphs[i]->height()*m_scaleY + graphSpacer;
}
//th-=m_offsetY;
return ceil(th);
}
float gGraphView::scaleHeight()
{
float th=0;
for (int i=0;i<m_graphs.size();i++) {
if (m_graphs[i]->isEmpty()) continue;
th += m_graphs[i]->height() * m_scaleY + graphSpacer;
}
return ceil(th);
}
void gGraphView::resizeEvent(QResizeEvent *e)
{
QGLWidget::resizeEvent(e); // This ques a redraw event..
updateScale();
for (int i=0;i<m_graphs.size();i++) {
m_graphs[i]->resize(e->size().width(),m_graphs[i]->height()*m_scaleY);
}
}
void gGraphView::scrollbarValueChanged(int val)
{
//qDebug() << "Scrollbar Changed" << val;
if (m_offsetY!=val) {
m_offsetY=val;
updateGL(); // do this on a timer?
}
}
void gGraphView::ResetBounds() //short group)
{
for (int i=0;i<m_graphs.size();i++) {
//if (m_graphs[i]->group()==group)
m_graphs[i]->ResetBounds();
}
updateScale();
}
void gGraphView::SetXBounds(qint64 minx, qint64 maxx,short group)
{
for (int i=0;i<m_graphs.size();i++) {
if (m_graphs[i]->group()==group)
m_graphs[i]->SetXBounds(minx,maxx);
}
updateGL();
}
void gGraphView::updateScale()
{
float th=totalHeight(); // height of all graphs
float h=height(); // height of main widget
if (th < h) {
m_scaleY=h / th; // less graphs than fits on screen, so scale to fit
} else {
m_scaleY=1.0;
}
updateScrollBar();
}
void gGraphView::updateScrollBar()
{
if (!m_scrollbar) return;
if (!m_graphs.size()) return;
float th=scaleHeight(); // height of all graphs
float h=height(); // height of main widget
float vis=0;
for (int i=0;i<m_graphs.size();i++) vis+=m_graphs[i]->isEmpty() ? 0 : 1;
if (th<h) { // less graphs than fits on screen
m_scrollbar->setMaximum(0); // turn scrollbar off.
} else { // more graphs than fit on screen
//m_scaleY=1.0;
float avgheight=th/vis;
m_scrollbar->setPageStep(avgheight);
m_scrollbar->setSingleStep(avgheight/8.0);
m_scrollbar->setMaximum(th-height());
if (m_offsetY>th-height()) {
m_offsetY=th-height();
}
}
}
void gGraphView::setScrollBar(MyScrollBar *sb)
{
m_scrollbar=sb;
m_scrollbar->setMinimum(0);
updateScrollBar();
this->connect(m_scrollbar,SIGNAL(valueChanged(int)),SLOT(scrollbarValueChanged(int)));
}
void gGraphView::initializeGL()
{
setAutoFillBackground(false);
setAutoBufferSwap(false);
glDisable(GL_LIGHTING);
glDisable(GL_DEPTH_TEST);
glDisable(GL_TEXTURE_2D);
}
void gGraphView::resizeGL(int w, int h)
{
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, w, h, 0, -1, 1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
void gGraphView::paintGL()
{
if (width()<=0) return;
if (height()<=0) return;
glClearColor(255,255,255,255);
//glClearDepth(1);
glClear(GL_COLOR_BUFFER_BIT);// | GL_DEPTH_BUFFER_BIT);
//glEnable(GL_BLEND);
//glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBegin(GL_QUADS);
glColor4f(1.0,1.0,1.0,1.0); // Gradient start
glVertex2f(0, height());
glVertex2f(0, 0);
glColor4f(0.8,0.8,1.0,1.0); // Gradient End
glVertex2f(width(), 0);
glVertex2f(width(), height());
glEnd();
float px=titleWidth-m_offsetX;
float py=-m_offsetY;
int numgraphs=m_graphs.size();
float h,w;
//ax=px;//-m_offsetX;
if (!numgraphs) {
QString ts="No Data";
} else
for (int i=0;i<numgraphs;i++) {
if (m_graphs[i]->isEmpty()) continue;
h=m_graphs[i]->height() * m_scaleY;
// set clipping?
if (py > height())
break; // we are done.. can't draw anymore
if ((py + h + graphSpacer) >= 0) {
w=width();
m_graphs[i]->paint(px,py,width()-titleWidth,h);
glColor4f(0,0,0,1);
//if (i<numgraphs-1) {
glBegin(GL_QUADS);
glColor4f(.5,.5,.5,1.0);
glVertex2f(0,py+h);
glVertex2f(w,py+h);
glColor4f(.7,.7,.7,1.0);
glVertex2f(w,py+h+graphSpacer/2.0);
glVertex2f(0,py+h+graphSpacer/2.0);
glColor4f(1,1,1,1.0);
glVertex2f(0,py+h+graphSpacer/2.0);
glVertex2f(w,py+h+graphSpacer/2.0);
glColor4f(.3,.3,.3,1.0);
glVertex2f(w,py+h+graphSpacer);
glVertex2f(0,py+h+graphSpacer);
glEnd();
//}
}
py+=h;
//if (i<numgraphs-1)
py+=graphSpacer;
py=ceil(py);
}
DrawTextQue();
//glDisable(GL_TEXTURE_2D);
//glDisable(GL_DEPTH_TEST);
swapBuffers(); // Dump to screen.
}
// For manual scrolling
void gGraphView::setOffsetY(int offsetY)
{
if (m_offsetY!=offsetY) {
m_offsetY=offsetY;
updateGL(); //issue full redraw..
}
}
// For manual X scrolling (not really needed)
void gGraphView::setOffsetX(int offsetX)
{
if (m_offsetX!=offsetX) {
m_offsetX=offsetX;
updateGL(); //issue redraw
}
}
void gGraphView::mouseMoveEvent(QMouseEvent * event)
{
int x=event->x();
int y=event->y();
if (m_sizer_dragging) { // Resize handle being dragged
float my=y - m_sizer_point.y();
//qDebug() << "Sizer moved vertically" << m_sizer_index << my*m_scaleY;
float h=m_graphs[m_sizer_index]->height();
h+=my / m_scaleY;
if (h > m_graphs[m_sizer_index]->minHeight()) {
m_graphs[m_sizer_index]->setHeight(h);
m_sizer_point.setX(x);
m_sizer_point.setY(y);
updateScrollBar();
updateGL();
}
return;
}
if (m_graph_dragging) { // Title bar being dragged to reorder
gGraph *p;
int yy=m_sizer_point.y();
bool empty;
if (y < yy) {
for (int i=m_graph_index-1;i>=0;i--) {
empty=m_graphs[i]->isEmpty();
// swapping upwards.
int yy2=yy-graphSpacer-m_graphs[i]->height()*m_scaleY;
yy2+=m_graphs[m_graph_index]->height()*m_scaleY;
if (y<yy2) {
//qDebug() << "Graph Reorder" << m_graph_index;
p=m_graphs[m_graph_index];
m_graphs[m_graph_index]=m_graphs[i];
m_graphs[i]=p;
if (!empty) {
m_sizer_point.setY(yy-graphSpacer-m_graphs[m_graph_index]->height()*m_scaleY);
updateGL();
}
m_graph_index--;
}
if (!empty) break;
}
} else if (y > yy+graphSpacer+m_graphs[m_graph_index]->height()*m_scaleY) {
// swapping downwards
//qDebug() << "Graph Reorder" << m_graph_index;
for (int i=m_graph_index+1;i<m_graphs.size();i++) {
empty=m_graphs[i]->isEmpty();
p=m_graphs[m_graph_index];
m_graphs[m_graph_index]=m_graphs[i];
m_graphs[i]=p;
if (!empty) {
m_sizer_point.setY(yy+graphSpacer+m_graphs[m_graph_index]->height()*m_scaleY);
updateGL();
}
m_graph_index++;
if (!empty) break;
}
}
return;
}
float py = -m_offsetY;
float h;
for (int i=0; i < m_graphs.size(); i++) {
if (m_graphs[i]->isEmpty()) continue;
h=m_graphs[i]->height() * m_scaleY;
if (py > height())
break; // we are done.. can't draw anymore
if (m_button_down || ((py + h + graphSpacer) >= 0)) {
if (m_button_down || ((y >= py) && (y < py + h))) {
if (m_button_down || (x >= titleWidth)) {
this->setCursor(Qt::ArrowCursor);
m_horiz_travel+=abs(x-m_lastxpos)+abs(y-m_lastypos);
m_lastxpos=x;
m_lastypos=y;
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);
}
} else if ((y >= py + h) && (y <= py + h + graphSpacer + 1)) {
this->setCursor(Qt::SplitVCursor);
}
}
py+=h;
py+=graphSpacer; // do we want the extra spacer down the bottom?
}
}
void gGraphView::mousePressEvent(QMouseEvent * event)
{
int x=event->x();
int y=event->y();
float py=-m_offsetY;
float h;
for (int i=0;i<m_graphs.size();i++) {
if (m_graphs[i]->isEmpty()) continue;
h=m_graphs[i]->height()*m_scaleY;
if (py>height())
break; // we are done.. can't draw anymore
if ((py + h + graphSpacer) >= 0) {
if ((y >= py) && (y < py + h)) {
//qDebug() << "Clicked" << i;
if (x < titleWidth) { // clicked on title to drag graph..
m_graph_dragging=true;
m_graph_index=i;
m_sizer_point.setX(x);
m_sizer_point.setY(py); // point at top of graph..
this->setCursor(Qt::ClosedHandCursor);
} else { // send event to graph..
m_global_point_clicked=QPoint(x,y);
m_point_clicked=QPoint (x-titleWidth,y-py);
m_selected_graph=m_graphs[i];
QMouseEvent e(event->type(),m_point_clicked,event->button(),event->buttons(),event->modifiers());
m_graph_index=i;
m_button_down=true;
m_horiz_travel=0;
m_graphs[i]->mousePressEvent(&e);
}
} else if ((y >= py + h) && (y <= py + h + graphSpacer + 1)) {
this->setCursor(Qt::SplitVCursor);
m_sizer_dragging=true;
m_sizer_index=i;
m_sizer_point.setX(x);
m_sizer_point.setY(y);
//qDebug() << "Sizer clicked" << i;
}
}
py+=h;
py+=graphSpacer; // do we want the extra spacer down the bottom?
}
}
void gGraphView::mouseReleaseEvent(QMouseEvent * event)
{
this->setCursor(Qt::ArrowCursor);
if (m_sizer_dragging) {
m_sizer_dragging=false;
return;
}
if (m_graph_dragging) {
m_graph_dragging=false;
return;
}
if (m_button_down) {
m_button_down=false;
int x1=m_global_point_clicked.x()-event->x();
int y1=m_global_point_clicked.y()-event->y();
QPoint p(m_point_clicked.x()-x1,m_point_clicked.y()-y1);
QMouseEvent e(event->type(),p,event->button(),event->buttons(),event->modifiers());
m_graphs[m_graph_index]->mouseReleaseEvent(&e);
}
int x=event->x();
int y=event->y();
}
void gGraphView::mouseDoubleClickEvent(QMouseEvent * event)
{
mousePressEvent(event);
return;
/* int x=event->x();
int y=event->y();
float py=-m_offsetY;
float h;
for (int i=0;i<m_graphs.size();i++) {
if (m_graphs[i]->isEmpty()) continue;
h=m_graphs[i]->height()*m_scaleY;
if (py>height())
break;
if ((py + h + graphSpacer) >= 0) {
if ((y >= py) && (y <= py + h)) {
if (x < titleWidth) {
// What to do when double clicked on the graph title ??
} else {
// send event to graph..
m_graphs[i]->mouseDoubleClickEvent(event);
}
} else if ((y >= py + h) && (y <= py + h + graphSpacer + 1)) {
// What to do when double clicked on the resize handle?
}
}
py+=h;
py+=graphSpacer; // do we want the extra spacer down the bottom?
} */
}
void gGraphView::wheelEvent(QWheelEvent * event)
{
// Hmm.. I could optionalize this to change mousewheel behaviour without affecting the scrollbar now..
if ((event->modifiers() & Qt::ControlModifier)) {
int x=event->x();
int y=event->y();
float py=-m_offsetY;
float h;
for (int i=0;i<m_graphs.size();i++) {
if (m_graphs[i]->isEmpty()) continue;
h=m_graphs[i]->height()*m_scaleY;
if (py>height())
break;
if ((py + h + graphSpacer) >= 0) {
if ((y >= py) && (y <= py + h)) {
if (x < titleWidth) {
// What to do when ctrl+wheel is used on the graph title ??
} else {
// send event to graph..
m_graphs[i]->wheelEvent(event);
}
} else if ((y >= py + h) && (y <= py + h + graphSpacer + 1)) {
// What to do when the wheel is used on the resize handle?
}
}
py+=h;
py+=graphSpacer; // do we want the extra spacer down the bottom?
}
} else {
m_scrollbar->SendWheelEvent(event); // Just forwarding the event to scrollbar for now..
}
}
void gGraphView::keyPressEvent(QKeyEvent * event)
{
}
MyScrollBar::MyScrollBar(QWidget * parent)
:QScrollBar(parent)
{
}
void MyScrollBar::SendWheelEvent(QWheelEvent * e)
{
wheelEvent(e);
}
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