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Diffstat (limited to 'indra/llrender/lluiimage.h')
| -rw-r--r-- | indra/llrender/lluiimage.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/indra/llrender/lluiimage.h b/indra/llrender/lluiimage.h new file mode 100644 index 0000000000..f07e8fa746 --- /dev/null +++ b/indra/llrender/lluiimage.h @@ -0,0 +1,124 @@ +/** + * @file lluiimage.h + * @brief wrapper for images used in the UI that handles smart scaling, etc. + * + * $LicenseInfo:firstyear=2007&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2010, Linden Research, Inc. + * + * 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; + * version 2.1 of the License only. + * + * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + */ + +#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 ParamValue<LLUIImage*, TypeValues<LLUIImage*> > + : public CustomParamValue<LLUIImage*> + { + typedef boost::add_reference<boost::add_const<LLUIImage*>::type>::type T_const_ref; + typedef CustomParamValue<LLUIImage*> super_t; + public: + Optional<std::string> name; + + ParamValue(LLUIImage* const& image) + : super_t(image) + { + updateBlockFromValue(false); + addSynonym(name, "name"); + } + + void updateValueFromBlock(); + void updateBlockFromValue(bool make_block_authoritative); + }; + + // 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 |