QT-是否有将几张图像组合成一张的类？
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我想做一些图像矩阵，在一些小部件中显示预览，然后将其全部保存到-例如-
jpg
没有找到相关结果
已邀请:
3 个回复
盛梯獭八搽
上，以容纳所有组合的图像。然后可以通过如下方式在拼贴上绘制每个单独的图像来生成拼贴（未测试的代码）：QList<QPixmap> images; QPixmap collage; // Make sure to resize collage to be able to fit all images. ... for (QList<QPixmap>::const_iterator it = images.begin(); it != images.end(); ++it) { int x = 0; int y = 0; // Calculate x & y coordinates for the current image in the collage. ... QPainter painter(&collage); painter.drawPixmap( QRectF(x, y, (*it).width(), (*it).height()), *it, QRectF(0, 0, (*it).width(), (*it).height())); }代替。已针对屏幕显示进行了优化。有关更多详细信息，请参见Qt文档。犁攀富
森含械
const int S_iconSize = 80; //The pictures are all quadratic. QList<const QPixmap*> t_images;//list with all the Pictures, PicA, PicB, Pic... QImage resultImage(S_iconSize*t_images.size(), S_iconSize, QImage::Format_ARGB32_Premultiplied); QPainter painter; painter.begin(&resultImage); for(int i=0; i < t_images.size(); ++i) { painter.drawImage(S_iconSize*i, 0, t_images.at(i)->toImage(), 0, 0, S_iconSize, S_iconSize, Qt::AutoColor); } painter.end(); QPixmap resultingCollagePixmap = QPixmap::fromImage(resultImage);