From 8cad5d9ae9bb1840c6d11ca3d1d4e1c067ca3d01 Mon Sep 17 00:00:00 2001
From: Anton Thomasson <antonthomasson@gmail.com>
Date: Tue, 16 Nov 2021 19:55:13 +0100
Subject: [PATCH] Prototype for future ConvertChecker

---
 src/convertchecker.cpp | 52 ++++++++++--------------------------------
 1 file changed, 12 insertions(+), 40 deletions(-)

diff --git a/src/convertchecker.cpp b/src/convertchecker.cpp
index ab974bd..e5094ae 100644
--- a/src/convertchecker.cpp
+++ b/src/convertchecker.cpp
@@ -1,3 +1,8 @@
+#include <poppler/glib/poppler.h>
+#include <poppler/glib/poppler-document.h>
+
+#include <dlfcn.h>
+
 #include "convertchecker.h"
 #include <QProcess>
 #include <QtDebug>
@@ -5,26 +10,14 @@
 
 ConvertChecker::ConvertChecker()
 {
-    _pdf = false;
+    _pdf = true;
     _calligra = false;
-    QProcess pdftoppm(this);
-    pdftoppm.setProgram("pdftoppm");
-    pdftoppm.setArguments({"-h"});
-    pdftoppm.start();
 
     QProcess calligraconverter(this);
     calligraconverter.setProgram("calligraconverter");
     calligraconverter.setArguments({"-h"});
     calligraconverter.start();
 
-    if(pdftoppm.waitForFinished(2000))
-    {
-      if(pdftoppm.exitStatus() == QProcess::NormalExit && pdftoppm.exitCode() == 0)
-      {
-          _pdf = true;
-      }
-    }
-
     if(calligraconverter.waitForFinished(2000))
     {
       if(calligraconverter.exitStatus() == QProcess::NormalExit && calligraconverter.exitCode() == 0)
@@ -58,33 +51,12 @@ ConvertChecker* ConvertChecker::instance()
 
 quint32 ConvertChecker::pdfPages(QString filename)
 {
-    quint32 pages = 0;
-    if(!_pdf || (Mimer::instance()->get_type(filename) != Mimer::PDF))
-    { // pdfinfo is a bit slow to return on some non-PDFs
-        return pages;
-    }
+    std::string url("file://");
+    url.append(filename.toStdString());
+    GError* error = nullptr;
+    PopplerDocument* doc = poppler_document_new_from_file(url.c_str(), nullptr, &error);
+    quint32 pages = poppler_document_get_n_pages(doc);
+    g_object_unref(doc);
 
-    QProcess* pdfinfo = new QProcess(this);
-    pdfinfo->setProgram("pdfinfo");
-    pdfinfo->setArguments({filename});
-    pdfinfo->start();
-
-    if(!pdfinfo->waitForStarted(1000) || !pdfinfo->waitForFinished(1000))
-    {
-        pdfinfo->deleteLater();
-        return pages;
-    }
-    QByteArray pdfInfoOutput = pdfinfo->readAllStandardOutput();
-    pdfinfo->deleteLater();
-    qDebug() << pdfInfoOutput;
-    QList<QByteArray> pdfInfoOutputLines = pdfInfoOutput.split('\n');
-    for(QList<QByteArray>::iterator it = pdfInfoOutputLines.begin(); it != pdfInfoOutputLines.end(); it++)
-    {
-        if(it->startsWith("Pages"))
-        {
-            QList<QByteArray> pagesTokens = it->split(' ');
-            pages = pagesTokens.last().toInt();
-        }
-    }
     return pages;
 }