/*\internal
Store color values in the given colormap.
*/
static void qStoreColors(HPALETTE cmap, const QGLColormap & cols)
{
QRgb color;
PALETTEENTRY pe;
for (int i = 0; i < cols.size(); i++) {
color = cols.entryRgb(i);
pe.peRed = qRed(color);
pe.peGreen = qGreen(color);
pe.peBlue = qBlue(color);
pe.peFlags = 0;
SetPaletteEntries(cmap, i, 1, &pe);
}
}
void QGLWidget::setColormap(const QGLColormap & c)
{
Q_D(QGLWidget);
d->cmap = c;
if (d->cmap.handle()) { // already have an allocated cmap
d->updateColormap();
} else {
LOGPALETTE *lpal = (LOGPALETTE *) malloc(sizeof(LOGPALETTE)
+c.size()*sizeof(PALETTEENTRY));
lpal->palVersion = 0x300;
lpal->palNumEntries = c.size();
d->cmap.setHandle(CreatePalette(lpal));
free(lpal);
d->updateColormap();
}
}
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
MySuperGLWidget widget; // a QGLWidget in color-index mode
QGLColormap colormap;
// This will fill the colormap with colors ranging from
// black to white.
const int size = 256;
for (int i = 0; i < size; ++i)
colormap.setEntry(i, qRgb(i, i, i));
widget.setColormap(colormap);
widget.show();
return app.exec();
}
AM3dDataSourceView::AM3dDataSourceView(const AMScan* scan, int dataSourceIndex, QWidget *parent) :
QWidget(parent)
{
QVBoxLayout* vl = new QVBoxLayout();
surfacePlot_ = new Qwt3D::SurfacePlot();
surfacePlot_->setPlotStyle(Qwt3D::FILLEDMESH);
surfacePlot_->setShading(Qwt3D::GOURAUD);
surfacePlot_->enableLighting();
surfacePlot_->illuminate(0);
surfacePlot_->setLightShift(23,23,23);
surfacePlot_->setLightRotation(90,0,0);
surfacePlot_->setRotation(30,0,15);
surfacePlot_->setZoom(0.90);
QGLColormap colors;
colors.setEntry(0, qRgb(0, 0, 131));
colors.setEntry(1, qRgb(0, 0, 255));
colors.setEntry(2, qRgb(0, 255, 255));
colors.setEntry(3, qRgb(255, 255, 0));
colors.setEntry(4, qRgb(255, 0, 0));
colors.setEntry(5, qRgb(128, 0, 0));
surfacePlot_->setColormap(colors);
surfacePlot_->setResolution(4);
vl->addWidget(surfacePlot_);
setLayout(vl);
if(scan && scan->dataSourceCount() > dataSourceIndex && scan->dataSourceAt(dataSourceIndex)->rank() == 2) {
scan_ = scan;
dataSourceIndex_ = dataSourceIndex;
updatePlotScheduler_.schedule();
}
else {
scan_ = 0;
dataSourceIndex_ = 0;
}
connect(&updatePlotScheduler_, SIGNAL(executed()), this, SLOT(updatePlotFromDataSource()));
}