Adding upstream version 1.3+ds.upstream/1.3+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 56 insertions, 0 deletions

diff --git a/src/extension/internal/pdfinput/pdf-utils.h b/src/extension/internal/pdfinput/pdf-utils.h
new file mode 100644
index 0000000..e1a449a
--- /dev/null
+++ b/src/extension/internal/pdfinput/pdf-utils.h
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** @file
+ * PDF Parsing utility functions and classes.
+ *//*
+ * 
+ * Copyright (C) 2022 Authors
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#ifndef PDF_UTILS_H
+#define PDF_UTILS_H
+
+#include <2geom/rect.h>
+#include "poppler-transition-api.h"
+#include "2geom/affine.h"
+#include "Gfx.h"
+#include "GfxState.h"
+#include "Page.h"
+
+class ClipHistoryEntry
+{
+public:
+    ClipHistoryEntry(GfxPath *clipPath = nullptr, GfxClipType clipType = clipNormal);
+    virtual ~ClipHistoryEntry();
+
+    // Manipulate clip path stack
+    ClipHistoryEntry *save(bool cleared = false);
+    ClipHistoryEntry *restore();
+    bool hasSaves() { return saved != nullptr; }
+    bool hasClipPath() { return clipPath != nullptr && !cleared; }
+    bool isCopied() { return copied; }
+    bool isBoundingBox() { return is_bbox; }
+    void setClip(GfxState *state, GfxClipType newClipType = clipNormal, bool bbox = false);
+    GfxPath *getClipPath() { return clipPath; }
+    GfxClipType getClipType() { return clipType; }
+    const Geom::Affine &getAffine() { return affine; }
+    bool evenOdd() { return clipType != clipNormal; }
+    void clear() { cleared = true; }
+
+private:
+    ClipHistoryEntry *saved; // next clip path on stack
+
+    Geom::Affine affine = Geom::identity(); // Saved affine state of the clipPath
+    GfxPath *clipPath;                      // used as the path to be filled for an 'sh' operator
+    GfxClipType clipType;
+    bool is_bbox = false;
+    bool cleared = false;
+    bool copied = false;
+
+    ClipHistoryEntry(ClipHistoryEntry *other, bool cleared = false);
+};
+
+Geom::Rect getRect(_POPPLER_CONST PDFRectangle *box);
+
+#endif /* PDF_UTILS_H */