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/**
* @file llchatmsgbox.cpp
* @author Martin Reddy
* @brief chat history text box, able to show array of strings with separator
*
* $LicenseInfo:firstyear=2009&license=viewergpl$
*
* Copyright (c) 2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#include "llviewerprecompiledheaders.h"
#include "llchatmsgbox.h"
#include "llwindow.h"
static LLDefaultChildRegistry::Register<LLChatMsgBox> r("text_chat");
LLChatMsgBox::Params::Params() :
block_spacing("block_spacing", 10)
{
line_spacing = 4;
}
LLChatMsgBox::LLChatMsgBox(const Params& p) :
LLTextBox(p),
mBlockSpacing(p.block_spacing)
{}
void LLChatMsgBox::addText( const LLStringExplicit& text )
{
LLWString t = mText.getWString();
if (! t.empty())
{
t += '\n';
}
t += getWrappedText(text);
LLTextBox::setText(wstring_to_utf8str(t));
mSeparatorOffset.push_back(getLength());
}
void LLChatMsgBox::setText(const LLStringExplicit& text)
{
mSeparatorOffset.clear();
mText.clear();
addText(text);
}
void LLChatMsgBox::setValue(const LLSD& value )
{
setText(value.asString());
}
S32 LLChatMsgBox::getTextPixelHeight()
{
S32 num_blocks = mSeparatorOffset.size();
S32 num_lines = getTextLinesNum();
return (S32)(num_lines * mDefaultFont->getLineHeight() + \
(num_lines-1) * mLineSpacing + \
(num_blocks-1) * mBlockSpacing + \
2 * mLineSpacing);
}
S32 LLChatMsgBox::getTextLinesNum()
{
S32 num_lines = getLineCount();
if (num_lines < 1)
{
num_lines = 1;
}
return num_lines;
}
void LLChatMsgBox::drawText(S32 x, S32 y, const LLWString &text, const LLColor4 &color)
{
S32 start = 0;
S32 width = getRect().getWidth()-10;
// iterate through each block of text that has been added
y -= mLineSpacing;
for (std::vector<S32>::iterator it = mSeparatorOffset.begin(); true ;)
{
// display the text for this block
S32 num_chars = *it - start;
LLWString text = mDisplayText.substr(start, num_chars);
LLTextBox::drawText(x, y, text, color);
// exit the loop if this is the last text block
start += num_chars + 1; // skip the newline
if (++it == mSeparatorOffset.end())
{
break;
}
// output a separator line between blocks
S32 num_lines = std::count(text.begin(), text.end(), '\n') + 1;
y -= num_lines * (llfloor(mDefaultFont->getLineHeight()) + mLineSpacing);
S32 sep_y = y - mBlockSpacing/2 + mLineSpacing/2;
gl_line_2d(5, sep_y, width, sep_y, LLColor4::grey);
y -= mBlockSpacing;
}
}
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