bool TextImp::getExtents(double& dMinX, double& dMinY, double& dMaxX, double& dMaxY)
{
PlotViewImp* pPlot = getPlot();
if (pPlot == NULL)
{
return false;
}
double dScreenX = 0;
double dScreenY = 0;
pPlot->translateDataToScreen(mLocation.mX, mLocation.mY, dScreenX, dScreenY);
QFontMetrics ftMetrics(mFont);
int iHeight = ftMetrics.height();
int iWidth = ftMetrics.width(mText);
double dScreenExtentX = dScreenX + iWidth;
double dScreenExtentY = dScreenY + iHeight;
pPlot->translateDataToWorld(mLocation.mX, mLocation.mY, dMinX, dMinY);
pPlot->translateScreenToWorld(dScreenExtentX, dScreenExtentY, dMaxX, dMaxY);
return true;
}
void CurveImp::draw()
{
if (isVisible() == false)
{
return;
}
unsigned int numPoints = mPoints.size();
if (numPoints == 0)
{
return;
}
glColor3ub(mColor.red(), mColor.green(), mColor.blue());
glLineWidth(mLineWidth);
if (mLineStyle != SOLID_LINE)
{
glEnable(GL_LINE_STIPPLE);
if (mLineStyle == DASHED)
{
glLineStipple(3, 0x3f3f);
}
else if (mLineStyle == DOT)
{
glLineStipple(2, 0x1111);
}
else if (mLineStyle == DASH_DOT)
{
glLineStipple(2, 0x11ff);
}
else if (mLineStyle == DASH_DOT_DOT)
{
glLineStipple(2, 0x24ff);
}
}
glBegin(GL_LINE_STRIP);
PlotViewImp* pPlot = getPlot();
VERIFYNRV(pPlot != NULL);
double dWorldX = 0.0;
double dWorldY = 0.0;
unsigned int i = 0;
for (i = 0; i < numPoints; i++)
{
LocationType point = mPoints.at(i);
pPlot->translateDataToWorld(point.mX, point.mY, dWorldX, dWorldY);
glVertex2d(dWorldX, dWorldY);
}
glEnd();
if (mLineStyle != SOLID_LINE)
{
glDisable(GL_LINE_STIPPLE);
}
glLineWidth(1);
if (isSelected() == true)
{
for (i = 0; i < numPoints; i++)
{
LocationType point = mPoints.at(i);
double dScreenX = 0;
double dScreenY = 0;
pPlot->translateDataToScreen(point.mX, point.mY, dScreenX, dScreenY);
double dX1 = dScreenX - 4;
double dY1 = dScreenY - 4;
double dX2 = dScreenX + 4;
double dY2 = dScreenY + 4;
double dPixelX1 = 0.0;
double dPixelY1 = 0.0;
double dPixelX2 = 0.0;
double dPixelY2 = 0.0;
pPlot->translateScreenToWorld(dX1, dY1, dPixelX1, dPixelY1);
pPlot->translateScreenToWorld(dX2, dY2, dPixelX2, dPixelY2);
glBegin(GL_POLYGON);
glVertex2d(dPixelX1, (dPixelY1 + dPixelY2) / 2);
glVertex2d((dPixelX1 + dPixelX2) / 2, dPixelY1);
glVertex2d(dPixelX2, (dPixelY1 + dPixelY2) / 2);
glVertex2d((dPixelX1 + dPixelX2) / 2, dPixelY2);
glEnd();
}
}
}
