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Auto resize image to fit into 34kB

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This commit is contained in:
hunbernd 2019-12-29 16:14:31 +01:00
parent 419a9a520c
commit 9381b744aa
2 changed files with 27 additions and 16 deletions
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39
retroshare-gui/src/gui/Posted/PostedCreatePostDialog.cpp
View File

@ -20,6 +20,7 @@
#include <QBuffer>
#include <QMessageBox>
#include <QByteArray>
#include "PostedCreatePostDialog.h"
#include "ui_PostedCreatePostDialog.h"
@ -34,6 +35,8 @@
#include <iostream>
#include <util/imageutil.h>
PostedCreatePostDialog::PostedCreatePostDialog(TokenQueue* tokenQ, RsPosted *posted, const RsGxsGroupId& grpId, QWidget *parent):
QDialog(parent, Qt::WindowSystemMenuHint | Qt::WindowTitleHint | Qt::WindowMinimizeButtonHint | Qt::WindowMaximizeButtonHint | Qt::WindowCloseButtonHint),
mTokenQueue(tokenQ), mPosted(posted), mGrpId(grpId),
@ -91,17 +94,11 @@ void PostedCreatePostDialog::createPost()
post.mMeta.mAuthorId = authorId;
post.mMeta.mMsgName = std::string(ui->titleEdit->text().toUtf8());
QByteArray ba;
QBuffer buffer(&ba);
if(!picture.isNull())
if(imagebytes.size() > 0)
{
// send posted image
buffer.open(QIODevice::WriteOnly);
picture.save(&buffer, "PNG"); // writes image into ba in PNG format
post.mImage.copy((uint8_t *) ba.data(), ba.size());
post.mImage.copy((uint8_t *) imagebytes.data(), imagebytes.size());
}
if(ui->titleEdit->text().isEmpty()) {
@ -119,15 +116,27 @@ void PostedCreatePostDialog::createPost()
void PostedCreatePostDialog::addPicture()
{
QPixmap img = misc::getOpenThumbnailedPicture(this, tr("Load thumbnail picture"), 800, 600);
imagefilename = "";
imagebytes.clear();
if (img.isNull())
return;
// select a picture file
if (misc::getOpenFileName(window(), RshareSettings::LASTDIR_IMAGES, tr("Load Picture File"), "Pictures (*.png *.xpm *.jpg *.jpeg *.gif *.webp )", imagefilename)) {
QString encodedImage;
int maxMessageSize = 34000; //34 kB
QImage image;
if (image.load (imagefilename) == false) {
fprintf (stderr, "RsHtml::makeEmbeddedImage() - image \"%s\" can't be load\n", imagefilename.toLatin1().constData());
return;
}
picture = img;
// to show the selected
ui->imageLabel->setPixmap(picture);
QImage opt;
if(ImageUtil::optimizeSizeBytes(imagebytes, image, opt, 800*600, maxMessageSize)) {
ui->imageLabel->setPixmap(QPixmap::fromImage(opt));
} else {
imagefilename = "";
imagebytes.clear();
}
}
}
void PostedCreatePostDialog::on_postButton_clicked()

4
retroshare-gui/src/gui/Posted/PostedCreatePostDialog.h
View File

@ -43,7 +43,9 @@ public:
explicit PostedCreatePostDialog(TokenQueue* tokenQ, RsPosted* posted, const RsGxsGroupId& grpId, QWidget *parent = 0);
~PostedCreatePostDialog();
QPixmap picture;
private:
QString imagefilename;
QByteArray imagebytes;
private slots:
void createPost();