QImage WebbrowserThumbnailGenerator::generate(const QString& url) const
{
auto image = createGradientImage(Qt::darkCyan, Qt::white);
auto host = QUrl{url}.host();
if (host.startsWith("www."))
host.remove(0, 4);
paintText(image, host.isEmpty() ? "Webbrowser" : host);
return image;
}
QImage FolderThumbnailGenerator::_createFolderImage(
const QDir& dir, const bool generateThumbnails) const
{
QImage img = createGradientImage(Qt::black, Qt::white);
const QFileInfoList& fileList = _getSupportedFilesInDir(dir);
if (generateThumbnails && fileList.size() > 0)
_paintThumbnailsMosaic(img, fileList);
else
paintText(img, FOLDER_TEXT);
return img;
}
void
QvisOpacitySlider::paintEvent(QPaintEvent *)
{
QPainter p(this);
int mid = thickness()/2 + sliderLength() / 8;
// Draw the gradient pixmap.
if(gradientImage == 0)
createGradientImage();
p.drawImage(0, tickOffset, *gradientImage);
// Draw the groove on which the slider slides.
drawSliderGroove(&p, 0, tickOffset, imageWidth(), thickness(), mid);
// Figure out the interval between the tick marks.
int interval = tickInt;
if(interval <= 0)
{
interval = singleStep();
if(positionFromValue(interval) - positionFromValue(0) < 3)
interval = pageStep();
}
// Draw the tick marks.
p.fillRect(0, 0, imageWidth(), tickOffset,
palette().brush(QPalette::Background));
p.fillRect(0, tickOffset + thickness(), imageWidth(), height(),
palette().brush(QPalette::Background));
drawTicks(&p, palette(), 0, tickOffset - 2, interval);
// Draw the slider
paintSlider(&p, palette(), sliderRect());
// Draw the value text.
paintValueText(&p, palette(), imageWidth(), height());
// If this widget has focus, draw the focus rectangle.
if(hasFocus())
{
QStyleOptionFocusRect so;
so.initFrom(this);
style()->drawPrimitive(QStyle::PE_FrameFocusRect,
&so,
&p);
}
}
QImage ImageThumbnailGenerator::_createLargeImagePlaceholder() const
{
QImage img = createGradientImage( Qt::darkBlue, Qt::white );
paintText( img, "LARGE\nIMAGE" );
return img;
}
void ConfigureSystemGraphics::on_bDefaultDisabledBottomColor_colorChanged(QColor color)
{
QImage gradient = createGradientImage(bDefaultDisabledTopColor->getColor(), color, lblDefaultDisabledColor->width() - 4, lblDefaultDisabledColor->height() - 4);
lblDefaultDisabledColor->setPixmap(QPixmap::fromImage(gradient));
}
