#ifndef GRAPHICSIMAGE_H
#define GRAPHICSIMAGE_H
-#include <boost/function.hpp>
-#include <boost/shared_ptr.hpp>
-#include <boost/signals/signal1.hpp>
+namespace lyx {
-#include <vector>
-#include <utility>
+namespace support { class FileName; }
-namespace lyx {
namespace graphics {
class Params;
class Image {
public:
- /** This is to be connected to a function that will return a new
- * instance of a viable derived class.
- */
- typedef boost::shared_ptr<Image> ImagePtr;
- ///
- static boost::function<ImagePtr()> newImage;
-
- /// Return the list of loadable formats.
- typedef std::vector<std::string> FormatList;
- ///
- static boost::function<FormatList()> loadableFormats;
-
///
virtual ~Image() {}
/// Create a copy
- Image * clone() const;
+ virtual Image * clone() const = 0;
/// Get the image width
- unsigned int getWidth() const;
+ virtual unsigned int width() const = 0;
/// Get the image height
- unsigned int getHeight() const;
+ virtual unsigned int height() const = 0;
/// Is the image drawable ?
- bool isDrawable() const;
-
- /** At the end of the loading process inform the outside world
- * by emitting a signal.
- */
- typedef boost::signal1<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.
- */
- void load(std::string const & filename);
-
- /** Generate the pixmap.
- * Uses the params to decide on color, grayscale etc.
- * Returns true if the pixmap is created.
- */
- bool setPixmap(Params const & params);
-
- /// Clip the image using params.
- void clip(Params const & params);
-
- /// Rotate the image using params.
- void rotate(Params const & params);
-
- /// Scale the image using params.
- void scale(Params const & params);
-
-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 make_pair(width, height).
- * If something goes wrong, returns make_pair(getWidth(), getHeight())
- */
- std::pair<unsigned int, unsigned int>
- getScaledDimensions(Params const & params) const;
-
-private:
- /// Create a copy
- virtual Image * clone_impl() const = 0;
- /// Get the image width
- virtual unsigned int getWidth_impl() const = 0;
-
- /// Get the image height
- virtual unsigned int getHeight_impl() const = 0;
-
- /// is the image drawable ?
- virtual bool isDrawable_impl() const = 0;
+ virtual bool isDrawable() const = 0;
/** Start loading the image file.
* The caller should expect this process to be asynchronous and
* so should connect to the "finished" signal above.
*/
- virtual void load_impl(std::string const & filename) = 0;
+ virtual bool load(support::FileName const & filename) = 0;
/** Generate the pixmap.
* Uses the params to decide on color, grayscale etc.
* Returns true if the pixmap is created.
*/
- virtual bool setPixmap_impl(Params const & params) = 0;
-
- /// Clip the image using params.
- virtual void clip_impl(Params const & params) = 0;
-
- /// Rotate the image using params.
- virtual void rotate_impl(Params const & params) = 0;
-
- /// Scale the image using params.
- virtual void scale_impl(Params const & params) = 0;
+ virtual bool setPixmap(Params const & params) = 0;
};
-
-inline
-Image * Image::clone() const
-{
- return clone_impl();
-}
-
-
-inline
-unsigned int Image::getWidth() const
-{
- return getWidth_impl();
-}
-
-
-inline
-unsigned int Image::getHeight() const
-{
- return getHeight_impl();
-}
-
-
-inline
-bool Image::isDrawable() const
-{
- return isDrawable_impl();
-}
-
-
-inline
-void Image::load(std::string const & filename)
-{
- return load_impl(filename);
-}
-
-
-inline
-bool Image::setPixmap(Params const & params)
-{
- return setPixmap_impl(params);
-}
-
-
-inline
-void Image::clip(Params const & params)
-{
- return clip_impl(params);
-}
-
-
-inline
-void Image::rotate(Params const & params)
-{
- return rotate_impl(params);
-}
-
-
-inline
-void Image::scale(Params const & params)
-{
- return scale_impl(params);
-}
+/// Only way to create a new Image.
+/// Implemented in the frontend.
+Image * newImage();
} // namespace graphics
} // namespace lyx