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/**
* @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::getInstance()->pushMatrix();
{
LLVector3 rect_origin = origin_agent + (rect.mLeft * x_axis) + (rect.mBottom * y_axis);
LLRender2D::getInstance()->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::getInstance()->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);
}
}
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