#ifndef GRAPHICSIMAGE_H
#define GRAPHICSIMAGE_H
-#include "Dimension.h"
-
-#include <boost/function.hpp>
-#include <boost/signal.hpp>
-
-#include <vector>
-
namespace lyx {
namespace support { class FileName; }
class Image {
public:
- /** This is to be connected to a function that will return a new
- * instance of a viable derived class.
- */
- static boost::function<Image *()> newImage;
-
///
virtual ~Image() {}
/// Is the image drawable ?
virtual bool isDrawable() const = 0;
- /** At the end of the loading process inform the outside world
- * by emitting a signal
- */
- typedef boost::signal<void(bool)> SignalType;
- ///
- SignalType finishedLoading;
-
/** Start loading the image file.
* The caller should expect this process to be asynchronous and
* so should connect to the "finished" signal above.
* Returns true if the pixmap is created.
*/
virtual bool setPixmap(Params const & params) = 0;
-
- /// Clip the image using params.
- virtual void clip(Params const & params) = 0;
-
- /// Rotate the image using params.
- virtual void rotate(Params const & params) = 0;
-
- /// Scale the image using params.
- virtual void scale(Params const & params) = 0;
-
-protected:
- /// Must define default c-tor explicitly as we define a copy c-tor.
- Image() {}
- /// Don't copy the signal finishedLoading
- Image(Image const &) {}
-
- /** Uses the params to ascertain the dimensions of the scaled image.
- * Returned as Dimension(width, height, 0 descend).
- * If something goes wrong, returns make_pair(getWidth(), getHeight(), 0)
- */
- Dimension scaledDimension(Params const & params) const;
};
+/// Only way to create a new Image.
+/// Implemented in the frontend.
+Image * newImage();
} // namespace graphics
} // namespace lyx