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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"
#include "llui.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);
}
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*, TypeValues<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 = LLUI::getUIImage(name());
if (imagep)
{
updateValue(imagep);
}
}
void ParamValue<LLUIImage*, TypeValues<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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