diff options
Diffstat (limited to 'src/qcam/viewfinder.cpp')
| -rw-r--r-- | src/qcam/viewfinder.cpp | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/src/qcam/viewfinder.cpp b/src/qcam/viewfinder.cpp index 3f984efb..45e226b5 100644 --- a/src/qcam/viewfinder.cpp +++ b/src/qcam/viewfinder.cpp @@ -20,6 +20,7 @@ ViewFinder::ViewFinder(QWidget *parent) : QWidget(parent), buffer_(nullptr) { + icon_ = QIcon(":camera-off.svg"); } ViewFinder::~ViewFinder() @@ -114,7 +115,36 @@ QImage ViewFinder::getCurrentImage() void ViewFinder::paintEvent(QPaintEvent *) { QPainter painter(this); - painter.drawImage(rect(), image_, image_.rect()); + + /* If we have an image, draw it. */ + if (!image_.isNull()) { + painter.drawImage(rect(), image_, image_.rect()); + return; + } + + /* + * Otherwise, draw the camera stopped icon. Render it to the pixmap if + * the size has changed. + */ + constexpr int margin = 20; + + if (vfSize_ != size() || pixmap_.isNull()) { + QSize vfSize = size() - QSize{ 2 * margin, 2 * margin }; + QSize pixmapSize{ 1, 1 }; + pixmapSize.scale(vfSize, Qt::KeepAspectRatio); + pixmap_ = icon_.pixmap(pixmapSize); + + vfSize_ = size(); + } + + QPoint point{ margin, margin }; + if (pixmap_.width() < width() - 2 * margin) + point.setX((width() - pixmap_.width()) / 2); + else + point.setY((height() - pixmap_.height()) / 2); + + painter.setBackgroundMode(Qt::OpaqueMode); + painter.drawPixmap(point, pixmap_); } QSize ViewFinder::sizeHint() const |