X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Ffrontends%2FClipboard.h;h=92e7167708ae9a50adc8093726bb1af1f024f5a6;hb=0425500be524ed87baebea34a5e8b6e58d718bbc;hp=d871b114e704d81c205f11fea56d31392ef31e97;hpb=c9c6ed0b7fbccbbed8b5ef48d05cfefa5acfb99e;p=lyx.git

diff --git a/src/frontends/Clipboard.h b/src/frontends/Clipboard.h
index d871b114e7..92e7167708 100644
--- a/src/frontends/Clipboard.h
+++ b/src/frontends/Clipboard.h
@@ -14,7 +14,12 @@
 #ifndef BASE_CLIPBOARD_H
 #define BASE_CLIPBOARD_H
 
-#include <string>
+#include "Cursor.h"
+
+#include "support/FileName.h"
+#include "support/strfwd.h"
+
+using lyx::support::FileName;
 
 namespace lyx {
 namespace frontend {
@@ -27,21 +32,66 @@ class Clipboard
 public:
 	virtual ~Clipboard() {}
 
+	enum GraphicsType {
+		PdfGraphicsType,
+		PngGraphicsType,
+		JpegGraphicsType,
+		LinkBackGraphicsType,
+		EmfGraphicsType,
+		WmfGraphicsType,
+		AnyGraphicsType
+	};
+
 	/**
-	 * Get the window system clipboard contents.
+	 * Get the system clipboard contents. The format is as written in
+	 * .lyx files (may even be an older version than ours if it comes
+	 * from an older LyX).
+	 * Does not convert plain text to LyX if only plain text is available.
 	 * This should be called when the user requests to paste from the
 	 * clipboard.
 	 */
-	virtual std::string const get() const = 0;
+	virtual std::string const getAsLyX() const = 0;
+	/// Get the contents of the window system clipboard in plain text format.
+	virtual docstring const getAsText() const = 0;
+	/// Get the contents of the window system clipboard as graphics file.
+	virtual FileName getAsGraphics(Cursor const & cur, GraphicsType type) const = 0;
+	
 	/**
-	 * Fill the window system clipboard.
+	 * Fill the system clipboard. The format of \p lyx is as written in
+	 * .lyx files, the format of \p text is plain text.
+	 * We put the clipboard contents in LyX format and plain text into
+	 * the system clipboard if supported, so that it is useful for other
+	 * applications as well as other instances of LyX.
 	 * This should be called when the user requests to cut or copy to
 	 * the clipboard.
 	 */
-	virtual void put(std::string const &) = 0;
+	virtual void put(std::string const & lyx, docstring const & text) = 0;
+
+	/// Does the clipboard contain LyX contents?
+	virtual bool hasLyXContents() const = 0;
+	/// Does the clipboard contain text contents?
+	virtual bool hasTextContents() const = 0;
+	/// Does the clipboard contain graphics contents of a certain type?
+	virtual bool hasGraphicsContents(GraphicsType type = AnyGraphicsType) const = 0;
+	/// state of clipboard.
+	/// \returns true if the system clipboard has been set within LyX
+	/// (document contents, dialogs count as external here).
+	virtual bool isInternal() const = 0;
+	/// \returns true if the OS has the concept of clipboard ownership,
+	/// which is crucial for our concept of internal clipboard.
+	virtual bool hasInternal() const = 0;
+	/// Is the clipboard empty?
+	/// \returns true if both the LyX and the plaintext versions of the
+	/// clipboard are empty, and no supported graphics format is available.
+	virtual bool empty() const = 0;
 };
 
 } // namespace frontend
+
+/// Implementation is in Application.cpp
+extern frontend::Clipboard & theClipboard();
+
 } // namespace lyx
 
+
 #endif // BASE_CLIPBOARD_H