Issue #118: Move compiler and draw space controller

Pdf4QtLibCore/sources/pdftextlayoutgenerator.cpp

@@ -0,0 +1,71 @@
+//    Copyright (C) 2023 Jakub Melka
+//
+//    This file is part of PDF4QT.
+//
+//    PDF4QT is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Lesser General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    with the written consent of the copyright owner, any later version.
+//
+//    PDF4QT is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public License
+//    along with PDF4QT.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "pdftextlayoutgenerator.h"
+
+namespace pdf
+{
+
+PDFTextLayout PDFTextLayoutGenerator::createTextLayout()
+{
+    m_textLayout.perform();
+    m_textLayout.optimize();
+    return qMove(m_textLayout);
+}
+
+bool PDFTextLayoutGenerator::isContentSuppressedByOC(PDFObjectReference ocgOrOcmd)
+{
+    if (m_features.testFlag(PDFRenderer::IgnoreOptionalContent))
+    {
+        return false;
+    }
+
+    return PDFPageContentProcessor::isContentSuppressedByOC(ocgOrOcmd);
+}
+
+bool PDFTextLayoutGenerator::isContentKindSuppressed(ContentKind kind) const
+{
+    switch (kind)
+    {
+        case ContentKind::Shapes:
+        case ContentKind::Text:
+        case ContentKind::Images:
+        case ContentKind::Shading:
+            return true;
+
+        case ContentKind::Tiling:
+            return false; // Tiling can have text
+
+        default:
+        {
+            Q_ASSERT(false);
+            break;
+        }
+    }
+
+    return false;
+}
+
+void PDFTextLayoutGenerator::performOutputCharacter(const PDFTextCharacterInfo& info)
+{
+    if (!isContentSuppressed() && !info.character.isSpace())
+    {
+        m_textLayout.addCharacter(info);
+    }
+}
+
+}   // namespace pdf