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avoid cyclical image downscaling in lite mode

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This commit is contained in:
Martin Rotter 2023-12-13 09:39:59 +01:00
parent 9be4c2c489
commit 8b91d4709f
2 changed files with 17 additions and 4 deletions
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19
src/librssguard/gui/webviewers/qtextbrowser/textbrowserviewer.cpp
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@ -15,6 +15,7 @@
#include "network-web/networkfactory.h"
#include "network-web/webfactory.h"
#include <QBuffer>
#include <QContextMenuEvent>
#include <QFileIconProvider>
#include <QScrollBar>
@ -79,16 +80,28 @@ QVariant TextBrowserViewer::loadOneResource(int type, const QUrl& name) {
}
int acceptable_width = int(width() * ACCEPTABLE_IMAGE_PERCENTUAL_WIDTH);
int img_width = img.width();
if (img.width() > acceptable_width) {
if (img_width > acceptable_width) {
QElapsedTimer tmr;
tmr.start();
img = img.scaledToWidth(acceptable_width, Qt::TransformationMode::SmoothTransformation);
qWarningNN << LOGSEC_GUI << "Picture" << QUOTE_W_SPACE(name)
qWarningNN << LOGSEC_GUI << "Picture" << QUOTE_W_SPACE(name) << "with width" << QUOTE_W_SPACE(img_width)
<< "is too wide, down-scaling to prevent horizontal scrollbars. Scaling took"
<< NONQUOTE_W_SPACE(tmr.elapsed()) << "miliseconds.";
QByteArray save_arr;
QBuffer save_buf(&save_arr, this);
if (img.save(&save_buf, "PNG", 100)) {
save_buf.close();
m_loadedResources.insert(resolved_name, save_arr);
}
else {
qWarningNN << LOGSEC_GUI << "Failed to save modified image" << QUOTE_W_SPACE(name) << "to cache.";
}
}
return img;
@ -465,7 +478,7 @@ void TextBrowserViewer::downloadNextNeededResource() {
void TextBrowserViewer::resourceDownloaded(const QUrl& url,
QNetworkReply::NetworkError status,
int http_code,
QByteArray contents) {
const QByteArray& contents) {
Q_UNUSED(http_code)
if (status == QNetworkReply::NetworkError::NoError) {

2
src/librssguard/gui/webviewers/qtextbrowser/textbrowserviewer.h
View File

@ -78,7 +78,7 @@ class TextBrowserViewer : public QTextBrowser, public WebViewer {
void resourceDownloaded(const QUrl& url,
QNetworkReply::NetworkError status,
int http_code,
QByteArray contents = QByteArray());
const QByteArray &contents = QByteArray());
signals:
void reloadDocument();