本文整理汇总了C++中BitmapImage::left方法的典型用法代码示例。如果您正苦于以下问题：C++ BitmapImage::left方法的具体用法？C++ BitmapImage::left怎么用？C++ BitmapImage::left使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类BitmapImage的用法示例。
在下文中一共展示了BitmapImage::left方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: floodFill
void BitmapImage::floodFill(BitmapImage* targetImage, BitmapImage* fillImage, QPoint point, QRgb targetColour, QRgb replacementColour, int tolerance, bool extendFillImage)
{
QList<QPoint> queue; // queue all the pixels of the filled area (as they are found)
int j, k;
bool condition;
BitmapImage* replaceImage;
if (extendFillImage)
{
replaceImage = new BitmapImage(targetImage->mBounds.united(fillImage->mBounds), QColor(0,0,0,0));
}
else
{
targetImage->extend(fillImage->mBounds); // not necessary - here just to prevent some bug when we draw outside the targetImage - to be fixed
replaceImage = new BitmapImage(fillImage->mBounds, QColor(0,0,0,0));
replaceImage->mExtendable = false;
}
//QPainter painter1(replaceImage->image);
//QPainter painter2(fillImage->image);
//painter1.setPen( QColor(replacementColour) );
QPen myPen;
myPen = QPen( QColor(replacementColour) , 1.0, Qt::SolidLine, Qt::RoundCap,Qt::RoundJoin);
targetColour = targetImage->pixel(point.x(), point.y());
//if ( rgbDistance(targetImage->pixel(point.x(), point.y()), targetColour) > tolerance ) return;
queue.append( point );
// ----- flood fill
// ----- from the standard flood fill algorithm
// ----- http://en.wikipedia.org/wiki/Flood_fill
j = -1;
k = 1;
for(int i=0; i< queue.size(); i++ )
{
point = queue.at(i);
if ( replaceImage->pixel(point.x(), point.y()) != replacementColour && rgbDistance(targetImage->pixel(point.x(), point.y()), targetColour) < tolerance )
{
j = -1;
condition = (point.x() + j > targetImage->left());
if (!extendFillImage) condition = condition && (point.x() + j > replaceImage->left());
while ( replaceImage->pixel(point.x()+j, point.y()) != replacementColour && rgbDistance(targetImage->pixel( point.x()+j, point.y() ), targetColour) < tolerance && condition)
{
j = j - 1;
condition = (point.x() + j > targetImage->left());
if (!extendFillImage) condition = condition && (point.x() + j > replaceImage->left());
}
k = 1;
condition = ( point.x() + k < targetImage->right()-1);
if (!extendFillImage) condition = condition && (point.x() + k < replaceImage->right()-1);
while ( replaceImage->pixel(point.x()+k, point.y()) != replacementColour && rgbDistance(targetImage->pixel( point.x()+k, point.y() ), targetColour) < tolerance && condition)
{
k = k + 1;
condition = ( point.x() + k < targetImage->right()-1);
if (!extendFillImage) condition = condition && (point.x() + k < replaceImage->right()-1);
}
//painter1.drawLine( point.x()+j, point.y(), point.x()+k+1, point.y() );
replaceImage->drawLine( QPointF(point.x()+j, point.y()), QPointF(point.x()+k, point.y()), myPen, QPainter::CompositionMode_SourceOver, false);
//for(int l=0; l<=k-j+1 ; l++) {
// replaceImage->setPixel( point.x()+j, point.y(), replacementColour );
//}
for(int x = j+1; x < k; x++)
{
//replaceImage->setPixel( point.x()+x, point.y(), replacementColour);
condition = point.y() - 1 > targetImage->top();
if (!extendFillImage) condition = condition && (point.y() - 1 > replaceImage->top());
if ( condition && queue.size() < targetImage->height() * targetImage->width() )
{
if ( replaceImage->pixel(point.x()+x, point.y()-1) != replacementColour)
{
if (rgbDistance(targetImage->pixel( point.x()+x, point.y() - 1), targetColour) < tolerance)
{
queue.append( point + QPoint(x,-1) );
}
else
{
replaceImage->setPixel( point.x()+x, point.y()-1, replacementColour);
}
}
}
condition = point.y() + 1 < targetImage->bottom();
if (!extendFillImage) condition = condition && (point.y() + 1 < replaceImage->bottom());
if ( condition && queue.size() < targetImage->height() * targetImage->width() )
{
if ( replaceImage->pixel(point.x()+x, point.y()+1) != replacementColour)
{
if (rgbDistance(targetImage->pixel( point.x()+x, point.y() + 1), targetColour) < tolerance)
{
queue.append( point + QPoint(x, 1) );
}
else
{
replaceImage->setPixel( point.x()+x, point.y()+1, replacementColour);
}
}
}
}
}
}
//.........这里部分代码省略.........