diff options
Diffstat (limited to 'indra/llrender/lluiimage.cpp')
| -rw-r--r-- | indra/llrender/lluiimage.cpp | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/indra/llrender/lluiimage.cpp b/indra/llrender/lluiimage.cpp new file mode 100644 index 0000000000..b954b66350 --- /dev/null +++ b/indra/llrender/lluiimage.cpp @@ -0,0 +1,243 @@ +/** + * @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" +#include "llrender2dutils.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), + mUniformScaling(TRUE), + mNoClip(TRUE), + mImageLoaded(NULL) +{ +} + +LLUIImage::~LLUIImage() +{ + delete mImageLoaded; +} + +void LLUIImage::setClipRegion(const LLRectf& region) +{ + mClipRegion = region; + mNoClip = mClipRegion.mLeft == 0.f + && mClipRegion.mRight == 1.f + && mClipRegion.mBottom == 0.f + && mClipRegion.mTop == 1.f; +} + +void LLUIImage::setScaleRegion(const LLRectf& region) +{ + mScaleRegion = region; + mUniformScaling = mScaleRegion.mLeft == 0.f + && mScaleRegion.mRight == 1.f + && mScaleRegion.mBottom == 0.f + && mScaleRegion.mTop == 1.f; +} + +//TODO: move drawing implementation inside class +void LLUIImage::draw(S32 x, S32 y, const LLColor4& color) const +{ + gl_draw_scaled_image(x, y, getWidth(), getHeight(), mImage, color, mClipRegion); +} + +void LLUIImage::draw(S32 x, S32 y, S32 width, S32 height, const LLColor4& color) const +{ + if (mUniformScaling) + { + gl_draw_scaled_image(x, y, width, height, mImage, color, mClipRegion); + } + else + { + gl_draw_scaled_image_with_border( + x, y, + width, height, + mImage, + color, + FALSE, + mClipRegion, + mScaleRegion); + } +} + +void LLUIImage::drawSolid(S32 x, S32 y, S32 width, S32 height, const LLColor4& color) const +{ + gl_draw_scaled_image_with_border( + x, y, + width, height, + mImage, + color, + TRUE, + mClipRegion, + mScaleRegion); +} + +void LLUIImage::drawBorder(S32 x, S32 y, S32 width, S32 height, const LLColor4& color, S32 border_width) const +{ + LLRect border_rect; + border_rect.setOriginAndSize(x, y, width, height); + border_rect.stretch(border_width, border_width); + drawSolid(border_rect, color); +} + +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 + (rect.mLeft * x_axis) + (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()), + rect.getWidth() * x_axis, + rect.getHeight() * y_axis); + + } LLRender2D::popMatrix(); +} + + +S32 LLUIImage::getWidth() const +{ + // return clipped dimensions of actual image area + return llround((F32)mImage->getWidth(0) * mClipRegion.getWidth()); +} + +S32 LLUIImage::getHeight() const +{ + // return clipped dimensions of actual image area + return llround((F32)mImage->getHeight(0) * mClipRegion.getHeight()); +} + +S32 LLUIImage::getTextureWidth() const +{ + return mImage->getWidth(0); +} + +S32 LLUIImage::getTextureHeight() const +{ + return mImage->getHeight(0); +} + +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::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); + } +} + |