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CEGUIImageset.h - Hosted on DriveHQ Cloud IT Platform
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路径: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\ogre\include\CEGUI\CEGUIImageset.h
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/*********************************************************************** filename: CEGUIImageset.h created: 21/2/2004 author: Paul D Turner purpose: Defines the interface for the Imageset class *************************************************************************/ /*************************************************************************** * Copyright (C) 2004 - 2006 Paul D Turner & The CEGUI Development Team * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. ***************************************************************************/ #ifndef _CEGUIImageset_h_ #define _CEGUIImageset_h_ #include "CEGUIBase.h" #include "CEGUIString.h" #include "CEGUIRect.h" #include "CEGUIColourRect.h" #include "CEGUIImagesetManager.h" #include "CEGUIImage.h" #include "CEGUIIteratorBase.h" #include "CEGUIXMLSerializer.h" #include
#if defined(_MSC_VER) # pragma warning(push) # pragma warning(disable : 4251) #endif // Start of CEGUI namespace section namespace CEGUI { /*! \brief Offers functions to define, access, and draw, a set of image components on a single graphical surface or Texture. Imageset objects are a means by which a single graphical image (file, Texture, etc), can be split into a number of 'components' which can later be accessed via name. The components of an Imageset can queried for various details, and sent to the Renderer object for drawing. */ class CEGUIEXPORT Imageset { friend class Imageset_xmlHandler; private: typedef std::map
ImageRegistry; /************************************************************************* Friends to allow access to constructors and destructors *************************************************************************/ friend Imageset* ImagesetManager::createImageset(const String& name, Texture* texture); friend Imageset* ImagesetManager::createImageset(const String& filename, const String& resourceGroup); friend Imageset* ImagesetManager::createImagesetFromImageFile(const String& name, const String& filename, const String& resourceGroup); friend void ImagesetManager::destroyImageset(const String& name); /************************************************************************* Construction and Destruction (private, only ImagesetManager can create and destroy Imageset objects). *************************************************************************/ /*! \brief Construct a new Imageset object. Object will initially have no Images defined \param texture Texture object that holds the imagery for the Imageset being created. */ Imageset(const String& name, Texture* texture); /*! \brief Construct a new Imageset object using data contained in the specified file. \param filename String object that holds the name of the Imageset data file that is to be processed. \param resourceGroup Resource group identifier to be passed to the resource manager. NB: This affects the imageset xml file only, the texture loaded may have its own group specified in the XML file. \exception FileIOException thrown if something goes wrong while processing the file \a filename. */ Imageset(const String& filename, const String& resourceGroup); /*! \brief Construct a new Imageset using the specified image file and imageset name. The created imageset will, by default, have a single Image defined named "full_image" which represents the entire area of the loaded image file. \note Under certain renderers it may be required that the source image dimensions be some power of 2, if this condition is not met then stretching and other undesired side-effects may be experienced. To be safe from such effects it is generally recommended that all images that you load have dimensions that are some power of 2. \param name String object holding the name to be assigned to the created imageset. \param filename String object holding the filename of the image that is to be loaded. The image should be of some format that is supported by the Renderer that is in use. \param resourceGroup Resource group identifier to be passed to the resource manager, which may specify a group from which the image file is to be loaded. \exception FileIOException thrown if something goes wrong while loading the image. */ Imageset(const String& name, const String& filename, const String& resourceGroup); public: // For luabind support /*! \brief Destroys Imageset objects */ ~Imageset(void); public: typedef ConstBaseIterator
ImageIterator; //!< Iterator type for this collection /************************************************************************* Public interface *************************************************************************/ /*! \brief return Texture object for this Imageset \return Texture object that holds the imagery for this Imageset */ Texture* getTexture(void) const {return d_texture;} /*! \brief return String object holding the name of the Imageset \return String object that holds the name of the Imageset. */ const String& getName(void) const {return d_name;} /*! \brief return number of images defined for this Imageset \return uint value equal to the number of Image objects defined for the Imageset */ uint getImageCount(void) const {return (uint)d_images.size();} /*! \brief return true if an Image with the specified name exists. \param name String object holding the name of the Image to look for. \return true if an Image object named \a name is defined for this Imageset, else false. */ bool isImageDefined(const String& name) const {return d_images.find(name) != d_images.end();} /*! \brief return a copy of the Image object for the named image \param name String object holding the name of the Image object to be returned \return constant Image object that has the requested name. \exception UnknownObjectException thrown if no Image named \a name is defined for the Imageset */ const Image& getImage(const String& name) const; /*! \brief remove the definition for the Image with the specified name. If no such Image exists, nothing happens. \param name String object holding the name of the Image object to be removed from the Imageset, \return Nothing. */ void undefineImage(const String& name); /*! \brief Removes the definitions for all Image objects currently defined in the Imageset \return Nothing */ void undefineAllImages(void); /*! \brief return a Size object describing the dimensions of the named image. \param name String object holding the name of the Image. \return Size object holding the dimensions of the requested Image. \exception UnknownObjectException thrown if no Image named \a name is defined for the Imageset */ Size getImageSize(const String& name) const {return getImage(name).getSize();} /*! \brief return the width of the named image. \param name String object holding the name of the Image. \return float value equalling the width of the requested Image. \exception UnknownObjectException thrown if no Image named \a name is defined for the Imageset */ float getImageWidth(const String& name) const {return getImage(name).getWidth();} /*! \brief return the height of the named image. \param name String object holding the name of the Image. \return float value equalling the height of the requested Image. \exception UnknownObjectException thrown if no Image named \a name is defined for the Imageset */ float getImageHeight(const String& name) const {return getImage(name).getHeight();} /*! \brief return the rendering offsets applied to the named image. \param name String object holding the name of the Image. \return Point object that holds the rendering offsets for the requested Image. \exception UnknownObjectException thrown if no Image named \a name is defined for the Imageset */ Point getImageOffset(const String& name) const {return getImage(name).getOffsets();} /*! \brief return the x rendering offset for the named image. \param name String object holding the name of the Image. \return float value equal to the x rendering offset applied when drawing the requested Image. \exception UnknownObjectException thrown if no Image named \a name is defined for the Imageset */ float getImageOffsetX(const String& name) const {return getImage(name).getOffsetX();} /*! \brief return the y rendering offset for the named image. \param name String object holding the name of the Image. \return float value equal to the y rendering offset applied when drawing the requested Image. \exception UnknownObjectException thrown if no Image named \a name is defined for the Imageset */ float getImageOffsetY(const String& name) const {return getImage(name).getOffsetY();} /*! \brief Define a new Image for this Imageset \param name String object holding the name that will be assigned to the new Image, which must be unique within the Imageset. \param position Point object describing the pixel location of the Image on the image file / texture associated with this Imageset. \param size Size object describing the dimensions of the Image, in pixels. \param render_offset Point object describing the offsets, in pixels, that are to be applied to the Image when it is drawn. \return Nothing \exception AlreadyExistsException thrown if an Image named \a name is already defined for this Imageset */ void defineImage(const String& name, const Point& position, const Size& size, const Point& render_offset) { defineImage(name, Rect(position.d_x, position.d_y, position.d_x + size.d_width, position.d_y + size.d_height), render_offset); } /*! \brief Define a new Image for this Imageset \param name String object holding the name that will be assigned to the new Image, which must be unique within the Imageset. \param image_rect Rect object describing the area on the image file / texture associated with this Imageset that will be used for the Image. \param render_offset Point object describing the offsets, in pixels, that are to be applied to the Image when it is drawn. \return Nothing \exception AlreadyExistsException thrown if an Image named \a name is already defined for this Imageset */ void defineImage(const String& name, const Rect& image_rect, const Point& render_offset); /*! \brief Queues an area of the associated Texture the be drawn on the screen. Low-level routine to be used carefully! \param source_rect Rect object describing the area of the image file / texture that is to be queued for drawing \param dest_rect Rect describing the area of the screen that will be filled with the imagery from \a source_rect. \param z float value specifying 'z' order. 0 is topmost with increasing values moving back into the screen. \param clip_rect Rect object describing a 'clipping rectangle' that will be applied when drawing the requested imagery \param colours ColourRect object holding the ARGB colours to be applied to the four corners of the rendered imagery. \param quad_split_mode One of the QuadSplitMode values specifying the way quads are split into triangles \return Nothing */ void draw(const Rect& source_rect, const Rect& dest_rect, float z, const Rect& clip_rect,const ColourRect& colours, QuadSplitMode quad_split_mode) const; /*! \brief Queues an area of the associated Texture the be drawn on the screen. Low-level routine to be used carefully! \param source_rect Rect object describing the area of the image file / texture that is to be queued for drawing \param dest_rect Rect describing the area of the screen that will be filled with the imagery from \a source_rect. \param z float value specifying 'z' order. 0 is topmost with increasing values moving back into the screen. \param clip_rect Rect object describing a 'clipping rectangle' that will be applied when drawing the requested imagery \param top_left_colour colour to be applied to the top left corner of the rendered imagery. \param top_right_colour colour to be applied to the top right corner of the rendered imagery. \param bottom_left_colour colour to be applied to the bottom left corner of the rendered imagery. \param bottom_right_colour colour to be applied to the bottom right corner of the rendered imagery. \param quad_split_mode One of the QuadSplitMode values specifying the way quads are split into triangles \return Nothing */ void draw(const Rect& source_rect, const Rect& dest_rect, float z, const Rect& clip_rect, const colour& top_left_colour = 0xFFFFFFFF, const colour& top_right_colour = 0xFFFFFFFF, const colour& bottom_left_colour = 0xFFFFFFFF, const colour& bottom_right_colour = 0xFFFFFFFF, QuadSplitMode quad_split_mode = TopLeftToBottomRight) const { draw(source_rect, dest_rect, z, clip_rect, ColourRect(top_left_colour, top_right_colour, bottom_left_colour, bottom_right_colour), quad_split_mode); } /*! \brief Return whether this Imageset is auto-scaled. \return true if Imageset is auto-scaled, false if not. */ bool isAutoScaled(void) const {return d_autoScale;} /*! \brief Return the native display size for this Imageset. This is only relevant if the Imageset is being auto-scaled. \return Size object describing the native display size for this Imageset. */ Size getNativeResolution(void) const {return Size(d_nativeHorzRes, d_nativeVertRes);} /*! \brief Enable or disable auto-scaling for this Imageset. \param setting true to enable auto-scaling, false to disable auto-scaling. \return Nothing. */ void setAutoScalingEnabled(bool setting); /*! \brief Set the native resolution for this Imageset \param size Size object describing the new native screen resolution for this Imageset. \return Nothing */ void setNativeResolution(const Size& size); /*! \brief Notify the Imageset of the current (usually new) display resolution. \param size Size object describing the display resolution \return Nothing */ void notifyScreenResolution(const Size& size); /*! \brief Return an Imageset::ImageIterator object that can be used to iterate over the Image objects in the Imageset. */ ImageIterator getIterator(void) const; /*! \brief Writes an xml representation of this Imageset to \a out_stream. \param out_stream Stream where xml data should be output. \param indentLevel Current XML indentation level \return Nothing. */ void writeXMLToStream(XMLSerializer& xml_stream) const; /*! \brief Sets the default resource group to be used when loading imageset data \param resourceGroup String describing the default resource group identifier to be used. \return Nothing. */ static void setDefaultResourceGroup(const String& resourceGroup) { d_defaultResourceGroup = resourceGroup; } /*! \brief Returns the default resource group currently set for Imagesets. \return String describing the default resource group identifier that will be used when loading Imageset data. */ static const String& getDefaultResourceGroup() { return d_defaultResourceGroup; } protected: /************************************************************************* Implementation Constants *************************************************************************/ static const char ImagesetSchemaName[]; //!< Filename of the XML schema used for validating Imageset files. /************************************************************************* Implementation Functions *************************************************************************/ /*! \brief Initialise the Imageset with information taken from the specified file. \param filename String object that holds the name of the Imageset data file that is to be processed. \param resourceGroup Resource group identifier to be passed to the resource manager. NB: This affects the imageset xml file only, the texture loaded may have its own group specified in the XML file. \return Nothing \exception FileIOException thrown if something goes wrong while processing the file \a filename. */ void load(const String& filename, const String& resourceGroup); /*! \brief Unloads all loaded data and leaves the Imageset in a clean (but un-usable) state. This should be called for cleanup purposes only. */ void unload(void); /*! \brief set the Texture object to be used by this Imageset. Changing textures on an Imageset that is in use is not a good idea! \param texture Texture object to be used by the Imageset. The old texture is NOT disposed of, that is the clients responsibility. \return Nothing \exception NullObjectException thrown if \a texture is NULL */ void setTexture(Texture* texture); /*! \brief Sets the scaling factor for all Images that are a part of this Imageset. \return Nothing. */ void updateImageScalingFactors(void); /************************************************************************* Implementation Data *************************************************************************/ String d_name; //!< Holds the name of this imageset. ImageRegistry d_images; //!< Registry of Image objects for the images defined for this Imageset Texture* d_texture; //!< Texture object that handles imagery for this Imageset String d_textureFilename; //!< String holding the name of the texture filename (if any). // auto-scaling fields bool d_autoScale; //!< true when auto-scaling is enabled. float d_horzScaling; //!< current horizontal scaling factor. float d_vertScaling; //!< current vertical scaling factor. float d_nativeHorzRes; //!< native horizontal resolution for this Imageset. float d_nativeVertRes; //!< native vertical resolution for this Imageset. static String d_defaultResourceGroup; //!< Default resource group specifically for Imagesets. }; } // End of CEGUI namespace section #if defined(_MSC_VER) # pragma warning(pop) #endif #endif // end of guard _CEGUIImageset_h_
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