/** * @file lluiimage.cpp * @brief UI implementation * * $LicenseInfo:firstyear=2007&license=viewerlgpl$ * 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 * $/LicenseInfo$ */ // Utilities functions the user interface needs //#include "llviewerprecompiledheaders.h" #include "linden_common.h" // Project includes #include "lluiimage.h" LLUIImage::LLUIImage(const std::string& name, LLPointer<LLTexture> image) : mName(name), mImage(image), mScaleRegion(0.f, 1.f, 1.f, 0.f), mClipRegion(0.f, 1.f, 1.f, 0.f), mImageLoaded(NULL), mScaleStyle(SCALE_INNER), mCachedW(-1), mCachedH(-1) { getTextureWidth(); getTextureHeight(); } LLUIImage::~LLUIImage() { delete mImageLoaded; } S32 LLUIImage::getWidth() const { // return clipped dimensions of actual image area return ll_round((F32)mImage->getWidth(0) * mClipRegion.getWidth()); } S32 LLUIImage::getHeight() const { // return clipped dimensions of actual image area return ll_round((F32)mImage->getHeight(0) * mClipRegion.getHeight()); } void LLUIImage::draw3D(const LLVector3& origin_agent, const LLVector3& x_axis, const LLVector3& y_axis, const LLRect& rect, const LLColor4& color) { F32 border_scale = 1.f; F32 border_height = (1.f - mScaleRegion.getHeight()) * getHeight(); F32 border_width = (1.f - mScaleRegion.getWidth()) * getWidth(); if (rect.getHeight() < border_height || rect.getWidth() < border_width) { if(border_height - rect.getHeight() > border_width - rect.getWidth()) { border_scale = (F32)rect.getHeight() / border_height; } else { border_scale = (F32)rect.getWidth() / border_width; } } LLRender2D::pushMatrix(); { LLVector3 rect_origin = origin_agent + ((F32)rect.mLeft * x_axis) + ((F32)rect.mBottom * y_axis); LLRender2D::translate(rect_origin.mV[VX], rect_origin.mV[VY], rect_origin.mV[VZ]); gGL.getTexUnit(0)->bind(getImage()); gGL.color4fv(color.mV); LLRectf center_uv_rect(mClipRegion.mLeft + mScaleRegion.mLeft * mClipRegion.getWidth(), mClipRegion.mBottom + mScaleRegion.mTop * mClipRegion.getHeight(), mClipRegion.mLeft + mScaleRegion.mRight * mClipRegion.getWidth(), mClipRegion.mBottom + mScaleRegion.mBottom * mClipRegion.getHeight()); gl_segmented_rect_3d_tex(mClipRegion, center_uv_rect, LLRectf(border_width * border_scale * 0.5f / (F32)rect.getWidth(), (rect.getHeight() - (border_height * border_scale * 0.5f)) / (F32)rect.getHeight(), (rect.getWidth() - (border_width * border_scale * 0.5f)) / (F32)rect.getWidth(), (border_height * border_scale * 0.5f) / (F32)rect.getHeight()), (F32)rect.getWidth() * x_axis, (F32)rect.getHeight() * y_axis); } LLRender2D::popMatrix(); } //#include "lluiimage.inl" boost::signals2::connection LLUIImage::addLoadedCallback( const image_loaded_signal_t::slot_type& cb ) { if (!mImageLoaded) { mImageLoaded = new image_loaded_signal_t(); } return mImageLoaded->connect(cb); } void LLUIImage::onImageLoaded() { if (mImageLoaded) { (*mImageLoaded)(); } } namespace LLInitParam { void ParamValue<LLUIImage*>::updateValueFromBlock() { // The keyword "none" is specifically requesting a null image // do not default to current value. Used to overwrite template images. if (name() == "none") { updateValue(NULL); return; } LLUIImage* imagep = LLRender2D::getInstance()->getUIImage(name()); if (imagep) { updateValue(imagep); } } void ParamValue<LLUIImage*>::updateBlockFromValue(bool make_block_authoritative) { if (getValue() == NULL) { name.set("none", make_block_authoritative); } else { name.set(getValue()->getName(), make_block_authoritative); } } bool ParamCompare<LLUIImage*, false>::equals( LLUIImage* const &a, LLUIImage* const &b) { // force all LLUIImages for XML UI export to be "non-default" if (!a && !b) return false; else return (a == b); } }