#ifndef GRAPHICSIMAGE_H
#define GRAPHICSIMAGE_H
-#include "support/std_string.h"
+#include "Dimension.h"
-#include <boost/shared_ptr.hpp>
-#include <boost/function/function0.hpp>
-#include <boost/signals/signal1.hpp>
+#include <boost/function.hpp>
+#include <boost/signal.hpp>
#include <vector>
-#include <utility>
namespace lyx {
+
+namespace support { class FileName; }
+
namespace graphics {
class Params;
/** 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::function0<ImagePtr> newImage;
-
- /// Return the list of loadable formats.
- typedef std::vector<string> FormatList;
- ///
- static boost::function0<FormatList> loadableFormats;
+ static boost::function<Image *()> newImage;
///
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;
+ virtual bool isDrawable() const = 0;
/** At the end of the loading process inform the outside world
- * by emitting a signal.
+ * by emitting a signal
*/
- typedef boost::signal1<void, bool> SignalType;
+ typedef boost::signal<void(bool)> SignalType;
///
SignalType finishedLoading;
* The caller should expect this process to be asynchronous and
* so should connect to the "finished" signal above.
*/
- void load(string const & filename);
+ 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.
*/
- 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);
+ virtual bool setPixmap(Params const & params) = 0;
protected:
/// Must define default c-tor explicitly as we define a copy c-tor.
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;
-
- /** 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(string const & filename) = 0;
-
- /** Generate the pixmap.
- * Uses the params to decide on color, grayscale etc.
- * Returns true if the pixmap is created.
+ * Returned as Dimension(width, height, 0 descend).
+ * If something goes wrong, returns make_pair(getWidth(), getHeight(), 0)
*/
- 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;
+ Dimension scaledDimension(Params const & params) const;
};
-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(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);
-}
-
} // namespace graphics
} // namespace lyx