Marker* readMarkers(const char* path)
{
Marker* head;
char name[20];
double ratio;
FILE* file;
file = fopen(path, "r");
if (!file)
{
fprintf(stderr, "Failed to open file (%s).\n", path);
exit(EXIT_FAILURE);
}
head = NULL;
while (fscanf(file, "%19s%lf", name, &ratio) != EOF)
{
fgetc(file); // Skip '\n'
head = insertMarker(head, makeMarker(strCopy(name), ratio));
}
fclose(file);
return head;
}
/*!
This function is a shortcut to insert a horizontal or vertical
line marker, dependent on the specified axis.
\param label Label
\param axis Axis to be attached
\return New key if the marker could be inserted, 0 if not.
*/
long QwtPlot::insertLineMarker(const QString &label, int axis)
{
QwtMarker::LineStyle lineStyle = QwtMarker::NoLine;
int xAxis = QwtPlot::xBottom;
int yAxis = QwtPlot::yLeft;
switch(axis)
{
case yLeft:
case yRight:
yAxis = axis;
lineStyle = QwtMarker::HLine;
break;
case xTop:
case xBottom:
xAxis = axis;
lineStyle = QwtMarker::VLine;
break;
}
QwtPlotMarker *marker = new QwtPlotMarker(this);
if ( marker == 0 )
return 0;
marker->setAxis(xAxis, yAxis);
marker->setLabel(label);
marker->setLineStyle(lineStyle);
marker->setLabelAlignment(Qt::AlignRight|Qt::AlignTop);
long key = insertMarker(marker);
if ( key == 0 )
delete marker;
return key;
}
Marker* distribute(File* hw, Marker* markers)
{
double sumRatio;
int numHWs;
int numHWsParRatio;
int numMarkHWs;
Marker* it;
Marker* tmp;
Marker* result;
int i;
int r;
sumRatio = 0;
for (it = markers; it; it = it->next)
{
sumRatio += it->ratio;
}
numHWs = numFiles(hw);
numHWsParRatio = (int)(numHWs / sumRatio + EPSILON);
for (it = markers; it; it = it->next)
{
numMarkHWs = (int)(numHWsParRatio * it->ratio + EPSILON);
for (int i = 0; i < numMarkHWs; ++i)
{
it->files = insertFile(it->files, removeFrontFile(&hw));
}
}
result = NULL;
for (i = numMarkers(markers); hw; --i)
{
r = rand() % i;
tmp = removeMarker(&markers, r);
tmp->files = insertFile(tmp->files, removeFrontFile(&hw));
result = insertMarker(result, tmp);
}
while (markers)
{
result = insertMarker(result, removeMarker(&markers, 0));
}
return result;
}
/*!
\brief Insert a new marker
\param label Label
\param xAxis X axis to be attached
\param yAxis Y axis to be attached
\return New key if the marker could be inserted, 0 if not.
*/
long QwtPlot::insertMarker(const QString &label, int xAxis, int yAxis)
{
QwtPlotMarker *marker = new QwtPlotMarker(this);
if ( marker == 0 )
return 0;
marker->setAxis(xAxis, yAxis);
marker->setLabel(label);
long key = insertMarker(marker);
if ( key == 0 )
delete marker;
return key;
}