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Set the proper size limits

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This commit is contained in:
hunbernd 2017-10-23 17:04:20 +02:00
parent f434e6559b
commit 64481de74b
8 changed files with 54 additions and 36 deletions
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38
retroshare-gui/src/gui/chat/ChatWidget.cpp
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@ -295,6 +295,7 @@ void ChatWidget::init(const ChatId &chat_id, const QString &title)
this->title = title;
ui->titleLabel->setText(RsHtml::plainText(title));
ui->chatTextEdit->setMaxBytes(this->maxMessageSize() - 200);
RsPeerId ownId = rsPeers->getOwnId();
setName(QString::fromUtf8(rsPeers->getPeerName(ownId).c_str()));
@ -452,6 +453,25 @@ void ChatWidget::processSettings(bool load)
Settings->endGroup();
}
uint32_t ChatWidget::maxMessageSize()
{
uint32_t maxMessageSize = 0;
switch (chatType()) {
case CHATTYPE_UNKNOWN:
break;
case CHATTYPE_PRIVATE:
maxMessageSize = rsMsgs->getMaxMessageSecuritySize(RS_CHAT_TYPE_PRIVATE);
break;
case CHATTYPE_LOBBY:
maxMessageSize = rsMsgs->getMaxMessageSecuritySize(RS_CHAT_TYPE_LOBBY);
break;
case CHATTYPE_DISTANT:
maxMessageSize = rsMsgs->getMaxMessageSecuritySize(RS_CHAT_TYPE_DISTANT);
break;
}
return maxMessageSize;
}
bool ChatWidget::eventFilter(QObject *obj, QEvent *event)
{
if (obj == ui->textBrowser || obj == ui->textBrowser->viewport()
@ -1169,20 +1189,7 @@ void ChatWidget::updateLenOfChatTextEdit()
RsHtml::optimizeHtml(chatWidget, text);
std::wstring msg = text.toStdWString();
uint32_t maxMessageSize = 0;
switch (chatType()) {
case CHATTYPE_UNKNOWN:
break;
case CHATTYPE_PRIVATE:
maxMessageSize = rsMsgs->getMaxMessageSecuritySize(RS_CHAT_TYPE_PRIVATE);
break;
case CHATTYPE_LOBBY:
maxMessageSize = rsMsgs->getMaxMessageSecuritySize(RS_CHAT_TYPE_LOBBY);
break;
case CHATTYPE_DISTANT:
maxMessageSize = rsMsgs->getMaxMessageSecuritySize(RS_CHAT_TYPE_DISTANT);
break;
}
uint32_t maxMessageSize = this->maxMessageSize();
int charRemains = 0;
if (maxMessageSize > 0) {
@ -1561,7 +1568,8 @@ void ChatWidget::addExtraPicture()
QString file;
if (misc::getOpenFileName(window(), RshareSettings::LASTDIR_IMAGES, tr("Load Picture File"), "Pictures (*.png *.xpm *.jpg *.jpeg)", file)) {
QString encodedImage;
if (RsHtml::makeEmbeddedImage(file, encodedImage, 640*480)) {
uint32_t maxMessageSize = this->maxMessageSize();
if (RsHtml::makeEmbeddedImage(file, encodedImage, 640*480, maxMessageSize - 200)) { //-200 for the html stuff
QTextDocumentFragment fragment = QTextDocumentFragment::fromHtml(encodedImage);
ui->chatTextEdit->textCursor().insertFragment(fragment);
}

2
retroshare-gui/src/gui/chat/ChatWidget.h
View File

@ -198,6 +198,8 @@ private:
void setColorAndFont(bool both);
void processSettings(bool load);
uint32_t maxMessageSize();
void completeNickname(bool reverse);
QAbstractItemModel *modelFromPeers();

2
retroshare-gui/src/gui/common/MimeTextEdit.cpp
View File

@ -69,7 +69,7 @@ void MimeTextEdit::insertFromMimeData(const QMimeData* source)
QImage image = qvariant_cast<QImage>(source->imageData());
if (image.isNull() == false) {
QString encodedImage;
if (RsHtml::makeEmbeddedImage(image, encodedImage, 640*480)) {
if (RsHtml::makeEmbeddedImage(image, encodedImage, 640*480, mMaxBytes)) {
QTextDocumentFragment fragment = QTextDocumentFragment::fromHtml(encodedImage);
textCursor().insertFragment(fragment);
return;

3
retroshare-gui/src/gui/common/MimeTextEdit.h
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@ -50,6 +50,8 @@ public:
QColor textColorQuote() const { return highliter->textColorQuote();}
bool onlyPlainText() const {return mOnlyPlainText;}
void setMaxBytes(int limit) {mMaxBytes = limit;}
public slots:
void setTextColorQuote(QColor textColorQuote) { highliter->setTextColorQuote(textColorQuote);}
void setOnlyPlainText(bool bOnlyPlainText) {mOnlyPlainText = bOnlyPlainText;}
@ -83,6 +85,7 @@ private:
QList<QAction*> mContextMenuActions;
RsSyntaxHighlighter *highliter;
bool mOnlyPlainText;
int mMaxBytes = -1; //limit content size, for pasting images
};
#endif // MIMETEXTEDIT_H

9
retroshare-gui/src/util/HandleRichText.cpp
View File

@ -1107,7 +1107,7 @@ QString RsHtml::toHtml(QString text, bool realHtml)
}
/** Loads image and converts image to embedded image HTML fragment **/
bool RsHtml::makeEmbeddedImage(const QString &fileName, QString &embeddedImage, const int maxPixels)
bool RsHtml::makeEmbeddedImage(const QString &fileName, QString &embeddedImage, const int maxPixels, const int maxBytes)
{
QImage image;
@ -1115,16 +1115,15 @@ bool RsHtml::makeEmbeddedImage(const QString &fileName, QString &embeddedImage,
fprintf (stderr, "RsHtml::makeEmbeddedImage() - image \"%s\" can't be load\n", fileName.toLatin1().constData());
return false;
}
return RsHtml::makeEmbeddedImage(image, embeddedImage, maxPixels);
return RsHtml::makeEmbeddedImage(image, embeddedImage, maxPixels, maxBytes);
}
/** Converts image to embedded image HTML fragment **/
bool RsHtml::makeEmbeddedImage(const QImage &originalImage, QString &embeddedImage, const int maxPixels)
bool RsHtml::makeEmbeddedImage(const QImage &originalImage, QString &embeddedImage, const int maxPixels, const int maxBytes)
{
RsScopeTimer s("Embed image");
QImage opt;
ImageUtil::optimizeSize(embeddedImage, originalImage, opt, maxPixels, 6000-500);
// -500 bytes: keep space for html stuff
return ImageUtil::optimizeSize(embeddedImage, originalImage, opt, maxPixels, maxBytes);
}
QString RsHtml::plainText(const QString &text)

4
retroshare-gui/src/util/HandleRichText.h
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@ -69,8 +69,8 @@ public:
static void optimizeHtml(QString &text, unsigned int flag = 0, const QColor &backgroundColor = Qt::white, qreal desiredContrast = 1.0, int desiredMinimumFontSize = 10);
static QString toHtml(QString text, bool realHtml = true);
static bool makeEmbeddedImage(const QString &fileName, QString &embeddedImage, const int maxPixels);
static bool makeEmbeddedImage(const QImage &originalImage, QString &embeddedImage, const int maxPixels);
static bool makeEmbeddedImage(const QString &fileName, QString &embeddedImage, const int maxPixels, const int maxBytes = -1);
static bool makeEmbeddedImage(const QImage &originalImage, QString &embeddedImage, const int maxPixels, const int maxBytes = -1);
static QString plainText(const QString &text);
static QString plainText(const std::string &text);

28
retroshare-gui/src/util/imageutil.cpp
View File

@ -48,13 +48,13 @@ void ImageUtil::extractImage(QWidget *window, QTextCursor cursor)
}
}
void ImageUtil::optimizeSize(QString &html, const QImage& original, QImage &optimized, int maxPixels, int maxBytes)
bool ImageUtil::optimizeSize(QString &html, const QImage& original, QImage &optimized, int maxPixels, int maxBytes)
{
//nothing to do if it fits into the limits
optimized = original;
if ((maxPixels <= 0) || (optimized.width()*optimized.height() <= maxPixels)) {
if(checkSize(html, optimized, maxBytes) <= maxBytes) {
return;
return true;
}
}
@ -71,11 +71,17 @@ void ImageUtil::optimizeSize(QString &html, const QImage& original, QImage &opti
int minwidth = qSqrt(100.0 * whratio);
//if maxBytes not defined, do not reduce color space, just downscale
if(maxBytes <= 0) {
checkSize(html, optimized = original.scaledToWidth(maxwidth, Qt::SmoothTransformation), maxBytes);
return true;
}
//Use binary search to find a suitable image size + linear regression to guess the file size
double maxsize = (double)checkSize(html, original.scaledToWidth(maxwidth, Qt::SmoothTransformation).convertToFormat(QImage::Format_Indexed8, ct), maxBytes);
if(maxsize <= maxBytes) return; //success
double minsize = (double)checkSize(html, original.scaledToWidth(minwidth, Qt::SmoothTransformation).convertToFormat(QImage::Format_Indexed8, ct), maxBytes);
if(minsize > maxBytes) return; //impossible
double maxsize = (double)checkSize(html, optimized = original.scaledToWidth(maxwidth, Qt::SmoothTransformation).convertToFormat(QImage::Format_Indexed8, ct), maxBytes);
if(maxsize <= maxBytes) return true; //success
double minsize = (double)checkSize(html, optimized = original.scaledToWidth(minwidth, Qt::SmoothTransformation).convertToFormat(QImage::Format_Indexed8, ct), maxBytes);
if(minsize > maxBytes) return false; //impossible
// std::cout << "maxS: " << maxsize << " minS: " << minsize << std::endl;
// std::cout << "maxW: " << maxwidth << " minW: " << minwidth << std::endl;
@ -86,7 +92,7 @@ void ImageUtil::optimizeSize(QString &html, const QImage& original, QImage &opti
double b = maxsize - m * ((double)maxwidth * (double)maxwidth / whratio);
double a = ((double)(maxBytes - region/2) - b) / m; //maxBytes - region/2 target the center of the accepted region
int nextwidth = qSqrt((qreal)(a * whratio));
double nextsize = (double)checkSize(html, original.scaledToWidth(nextwidth, Qt::SmoothTransformation).convertToFormat(QImage::Format_Indexed8, ct), maxBytes);
double nextsize = (double)checkSize(html, optimized = original.scaledToWidth(nextwidth, Qt::SmoothTransformation).convertToFormat(QImage::Format_Indexed8, ct), maxBytes);
if(nextsize <= maxBytes) {
minsize = nextsize;
minwidth = nextwidth;
@ -99,7 +105,7 @@ void ImageUtil::optimizeSize(QString &html, const QImage& original, QImage &opti
// std::cout << "maxS: " << maxsize << " minS: " << minsize << std::endl;
// std::cout << "maxW: " << maxwidth << " minW: " << minwidth << std::endl;
} while(!success);
return true;
//html = html.arg(original.width());
//std::cout << html.toStdString() << std::endl;
}
@ -112,15 +118,15 @@ int ImageUtil::checkSize(QString &embeddedImage, const QImage &img, int maxBytes
QBuffer buffer(&bytearray);
int size = 0;
std::cout << QString("Trying image: format PNG, size %1x%2, colors %3\n").arg(img.width()).arg(img.height()).arg(img.colorCount()).toStdString();
//std::cout << QString("Trying image: format PNG, size %1x%2, colors %3\n").arg(img.width()).arg(img.height()).arg(img.colorCount()).toStdString();
if (buffer.open(QIODevice::WriteOnly)) {
if (img.save(&buffer, "PNG", 0)) {
size = bytearray.length() * 4/3;
if((maxBytes > 0) && (size > maxBytes)) // *4/3 for base64
{
std::cout << QString("\tToo large, size: %1, limit: %2 bytes\n").arg(bytearray.length() * 4/3).arg(maxBytes).toStdString();
//std::cout << QString("\tToo large, size: %1, limit: %2 bytes\n").arg(bytearray.length() * 4/3).arg(maxBytes).toStdString();
}else{
std::cout << QString("\tOK, size: %1, limit: %2 bytes\n").arg(bytearray.length() * 4/3).arg(maxBytes).toStdString();
//std::cout << QString("\tOK, size: %1, limit: %2 bytes\n").arg(bytearray.length() * 4/3).arg(maxBytes).toStdString();
QByteArray encodedByteArray = bytearray.toBase64();
//embeddedImage = "<img width=\"%1\" src=\"data:image/png;base64,";
embeddedImage = "<img src=\"data:image/png;base64,";

2
retroshare-gui/src/util/imageutil.h
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@ -11,7 +11,7 @@ public:
ImageUtil();
static void extractImage(QWidget *window, QTextCursor cursor);
static void optimizeSize(QString &html, const QImage& original, QImage &optimized, int maxPixels = -1, int maxBytes = -1);
static bool optimizeSize(QString &html, const QImage& original, QImage &optimized, int maxPixels = -1, int maxBytes = -1);
private:
static int checkSize(QString& embeddedImage, const QImage& img, int maxBytes = -1);