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preview: scaled in-place preview of diagrams

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This commit is contained in:
Le Tan 2018-05-14 22:24:30 +08:00
parent 423cc76ee5
commit 14070ab67a
1 changed files with 20 additions and 4 deletions
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24
src/vlivepreviewhelper.cpp
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@ -402,6 +402,8 @@ void VLivePreviewHelper::processForInplacePreview(int p_idx)
void VLivePreviewHelper::updateInplacePreview() void VLivePreviewHelper::updateInplacePreview()
{ {
Qt::TransformationMode tMode = Qt::SmoothTransformation;
qreal sf = VUtils::calculateScaleFactor();
QSet<int> blocks; QSet<int> blocks;
QVector<QSharedPointer<VImageToPreview> > images; QVector<QSharedPointer<VImageToPreview> > images;
for (int i = 0; i < m_codeBlocks.size(); ++i) { for (int i = 0; i < m_codeBlocks.size(); ++i) {
@ -410,13 +412,27 @@ void VLivePreviewHelper::updateInplacePreview()
// Generate the image. // Generate the image.
bool valid = false; bool valid = false;
if (cb.hasImageData()) { if (cb.hasImageData()) {
cb.inplacePreview()->m_image.loadFromData(cb.imageData().toUtf8(), QPixmap tmpImg;
cb.imageFormat().toLocal8Bit().data()); tmpImg.loadFromData(cb.imageData().toUtf8(),
cb.imageFormat().toLocal8Bit().data());
if (sf < 1.1) {
cb.inplacePreview()->m_image.swap(tmpImg);
} else {
cb.inplacePreview()->m_image = tmpImg.scaledToWidth(tmpImg.width() * sf, tMode);
}
images.append(cb.inplacePreview()); images.append(cb.inplacePreview());
valid = true; valid = true;
} else if (cb.hasImageDataBa()) { } else if (cb.hasImageDataBa()) {
cb.inplacePreview()->m_image.loadFromData(cb.imageDataBa(), QPixmap tmpImg;
cb.imageFormat().toLocal8Bit().data()); tmpImg.loadFromData(cb.imageDataBa(),
cb.imageFormat().toLocal8Bit().data());
if (sf < 1.1) {
cb.inplacePreview()->m_image.swap(tmpImg);
} else {
cb.inplacePreview()->m_image = tmpImg.scaledToWidth(tmpImg.width() * sf, tMode);
}
images.append(cb.inplacePreview()); images.append(cb.inplacePreview());
valid = true; valid = true;
} }