lluiimage.h
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- /**
- * @file lluiimage.h
- * @brief wrapper for images used in the UI that handles smart scaling, etc.
- *
- * $LicenseInfo:firstyear=2007&license=viewergpl$
- *
- * Copyright (c) 2007-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #ifndef LL_LLUIIMAGE_H
- #define LL_LLUIIMAGE_H
- #include "v4color.h"
- #include "llpointer.h"
- #include "llrefcount.h"
- #include "llrefcount.h"
- #include "llrect.h"
- #include <boost/function.hpp>
- #include <boost/signals2.hpp>
- #include "llinitparam.h"
- #include "lltexture.h"
- extern const LLColor4 UI_VERTEX_COLOR;
- class LLUIImage : public LLRefCount
- {
- public:
- typedef boost::signals2::signal<void (void)> image_loaded_signal_t;
- LLUIImage(const std::string& name, LLPointer<LLTexture> image);
- virtual ~LLUIImage();
- void setClipRegion(const LLRectf& region);
- void setScaleRegion(const LLRectf& region);
- LLPointer<LLTexture> getImage() { return mImage; }
- const LLPointer<LLTexture>& getImage() const { return mImage; }
- void draw(S32 x, S32 y, S32 width, S32 height, const LLColor4& color = UI_VERTEX_COLOR) const;
- void draw(S32 x, S32 y, const LLColor4& color = UI_VERTEX_COLOR) const;
- void draw(const LLRect& rect, const LLColor4& color = UI_VERTEX_COLOR) const { draw(rect.mLeft, rect.mBottom, rect.getWidth(), rect.getHeight(), color); }
-
- void drawSolid(S32 x, S32 y, S32 width, S32 height, const LLColor4& color) const;
- void drawSolid(const LLRect& rect, const LLColor4& color) const { drawSolid(rect.mLeft, rect.mBottom, rect.getWidth(), rect.getHeight(), color); }
- void drawSolid(S32 x, S32 y, const LLColor4& color) const { drawSolid(x, y, getWidth(), getHeight(), color); }
- void drawBorder(S32 x, S32 y, S32 width, S32 height, const LLColor4& color, S32 border_width) const;
- void drawBorder(const LLRect& rect, const LLColor4& color, S32 border_width) const { drawBorder(rect.mLeft, rect.mBottom, rect.getWidth(), rect.getHeight(), color, border_width); }
- void drawBorder(S32 x, S32 y, const LLColor4& color, S32 border_width) const { drawBorder(x, y, getWidth(), getHeight(), color, border_width); }
-
- const std::string& getName() const { return mName; }
- virtual S32 getWidth() const;
- virtual S32 getHeight() const;
- // returns dimensions of underlying textures, which might not be equal to ui image portion
- S32 getTextureWidth() const;
- S32 getTextureHeight() const;
- boost::signals2::connection addLoadedCallback( const image_loaded_signal_t::slot_type& cb );
- void onImageLoaded();
- protected:
- image_loaded_signal_t* mImageLoaded;
- std::string mName;
- LLRectf mScaleRegion;
- LLRectf mClipRegion;
- LLPointer<LLTexture> mImage;
- BOOL mUniformScaling;
- BOOL mNoClip;
- };
- namespace LLInitParam
- {
- template<>
- class TypedParam<LLUIImage*, TypeValues<LLUIImage*>, false>
- : public BlockValue<LLUIImage*>
- {
- typedef boost::add_reference<boost::add_const<LLUIImage*>::type>::type T_const_ref;
- typedef BlockValue<LLUIImage*> super_t;
- public:
- Optional<std::string> name;
- TypedParam(BlockDescriptor& descriptor, const char* name, super_t::value_assignment_t value, ParamDescriptor::validation_func_t func, S32 min_count, S32 max_count)
- : super_t(descriptor, name, value, func, min_count, max_count)
- {
- setBlockFromValue();
- }
- void setValueFromBlock() const;
- void setBlockFromValue();
- };
- // Need custom comparison function for our test app, which only loads
- // LLUIImage* as NULL.
- template<>
- struct ParamCompare<LLUIImage*, false>
- {
- static bool equals(LLUIImage* const &a, LLUIImage* const &b);
- };
- }
- typedef LLPointer<LLUIImage> LLUIImagePtr;
- #endif