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- /************************************************************************
- filename: CEGUIRenderableFrame.h
- created: 14/4/2004
- author: Paul D Turner
-
- purpose: Interface to RenderableFrame UI construct
- *************************************************************************/
- /*************************************************************************
- Crazy Eddie's GUI System (http://www.cegui.org.uk)
- Copyright (C)2004 - 2005 Paul D Turner (paul@cegui.org.uk)
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *************************************************************************/
- #ifndef _CEGUIRenderableFrame_h_
- #define _CEGUIRenderableFrame_h_
-
- #include "CEGUIBase.h"
- #include "CEGUIRenderableElement.h"
-
-
- // Start of CEGUI namespace section
- namespace CEGUI
- {
- /*!
- \brief
- Enumeration of positions for a frame.
- */
- enum FrameLocation
- {
- Invalid, // Value reserved to indicate some invalid or unknown location.
- TopLeftCorner, // Top-Left corner of a frame / rectangle.
- TopRightCorner, // Top-Right corner of a frame / rectangle.
- BottomLeftCorner, // Bottom-Left corner of a frame / rectangle.
- BottomRightCorner, // Bottom-Right corner of a frame / rectangle.
- LeftEdge, // Left edge of a frame / rectangle.
- TopEdge, // Top edge of a frame / rectangle.
- RightEdge, // Right edge of a frame / rectangle.
- BottomEdge // Bottom edge of a frame / rectangle.
- };
-
-
- /*!
- \brief
- A higher order GUI entity that represents a renderable frame.
-
- This class is intended to be used where a (usually top-level) GUI element needs to draw a frame that is constructed from
- a collection of Images. It is possible to specify the image to use for each of the four corners, which are placed appropriately
- at their natural size, and the images for the four edges, which are stretched to cover the area between any corner images. Any
- of the Images may be omitted, in which case that part of the frame is not drawn. If the GUI element uses only one image for its
- frame (usually stretched over the entire area of the element) then a better choice would be to use a RenderableImage, or perform the
- rendering directly instead.
- */
- class CEGUIEXPORT RenderableFrame : public RenderableElement
- {
- public:
- /*************************************************************************
- Construction / Destruction
- *************************************************************************/
- /*!
- \brief
- Default constructor for RenderableFrame
- */
- RenderableFrame(void);
-
-
- /*!
- \brief
- Destructor for RenderableFrame
- */
- virtual ~RenderableFrame(void);
-
-
- /*!
- \brief
- specify the Image objects to use for each part of the frame. A NULL may be used to omit any part.
-
- \param topleft
- Pointer to an Image object to render as the top-left corner of the frame. Specify NULL to omit this part of the frame.
-
- \param topright
- Pointer to an Image object to render as the top-right corner of the frame. Specify NULL to omit this part of the frame.
-
- \param bottomleft
- Pointer to an Image object to render as the bottom-left corner of the frame. Specify NULL to omit this part of the frame.
-
- \param bottomright
- Pointer to an Image object to render as the bottom-right corner of the frame. Specify NULL to omit this part of the frame.
-
- \param left
- Pointer to an Image object to render as the left edge of the frame. Specify NULL to omit this part of the frame.
-
- \param top
- Pointer to an Image object to render as the top edge of the frame. Specify NULL to omit this part of the frame.
-
- \param right
- Pointer to an Image object to render as the right edge of the frame. Specify NULL to omit this part of the frame.
-
- \param bottom
- Pointer to an Image object to render as the bottom edge of the frame. Specify NULL to omit this part of the frame.
-
- \return
- Nothing
- */
- void setImages(const Image* topleft, const Image* topright, const Image* bottomleft, const Image* bottomright, const Image* left, const Image* top, const Image* right, const Image* bottom);
-
-
- /*!
- \brief
- Set the Image to use for the specified location of the frame.
-
- \param location
- One of the FrameLocation enumerated values specifying the image to be returned.
-
- \param image
- Pointer to the Image to use for the frame location specified in \a location. May be NULL to indicate the
- frame component is not required.
-
- \return
- Nothing.
- */
- void setImageForLocation(FrameLocation location, const Image* image);
-
-
-
- /*!
- \brief
- Return the Image being used for the specified location of the frame.
-
- \param location
- One of the FrameLocation enumerated values specifying the image to be returned.
-
- \return
- Pointer to the Image object currently set for the frame location specified in \a location. May return NULL if no
- Image is set for the requested position.
- */
- const Image* getImageForLocation(FrameLocation location) const;
-
-
- protected:
- /*************************************************************************
- Implementation functions
- *************************************************************************/
- /*!
- \brief
- Renders the imagery for a RenderableFrame element.
-
- \param position
- Vector3 object describing the final rendering position for the object.
-
- \param clip_rect
- Rect object describing the clipping area for the rendering. No rendering will be performed outside this area.
-
- \return
- Nothing.
- */
- void draw_impl(const Vector3& position, const Rect& clip_rect) const;
-
- // implements abstract method
- void draw_impl(RenderCache& renderCache) const;
-
- /*************************************************************************
- Implementation Data
- *************************************************************************/
- // image pointers
- const Image* d_topleft; //!< Image to draw for the top-left corner.
- const Image* d_topright; //!< Image to draw for the top-right corner.
- const Image* d_bottomleft; //!< Image to draw for the bottom-left corner.
- const Image* d_bottomright; //!< Image to draw for the bottom-right corner.
- const Image* d_left; //!< Image to draw for the left edge.
- const Image* d_right; //!< Image to draw for the right edge.
- const Image* d_top; //!< Image to draw for the top edge.
- const Image* d_bottom; //!< Image to draw for the bottom edge.
- };
-
- } // End of CEGUI namespace section
-
-
- #endif // end of guard _CEGUIRenderableFrame_h_
-