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/**
* @file llchatmsgbox.cpp
* @author Martin Reddy
* @brief chat history text box, able to show array of strings with separator
*
* $LicenseInfo:firstyear=2009&license=viewerlgpl$
* 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
* $/LicenseInfo$
*/
#include "llviewerprecompiledheaders.h"
#include "llchatmsgbox.h"
#include "llwindow.h"
static LLDefaultChildRegistry::Register<LLChatMsgBox> r("text_chat");
class ChatSeparator : public LLTextSegment
{
public:
ChatSeparator(S32 start, S32 end)
: LLTextSegment(start, end),
mEditor(NULL)
{}
/*virtual*/ void linkToDocument(class LLTextBase* editor)
{
mEditor = editor;
}
/*virtual*/ void unlinkFromDocument(class LLTextBase* editor)
{
mEditor = NULL;
}
/*virtual*/ S32 getWidth(S32 first_char, S32 num_chars) const
{
return mEditor->getDocumentView()->getRect().getWidth();
}
/*virtual*/ F32 draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect)
{
gl_line_2d(draw_rect.mLeft + 5, draw_rect.getCenterY(), draw_rect.mRight - 5, draw_rect.getCenterY(), LLColor4::grey);
return draw_rect.getWidth();
}
private:
LLTextBase* mEditor;
};
LLChatMsgBox::Params::Params() :
block_spacing("block_spacing", 10)
{
changeDefault(line_spacing.pixels, 4);
}
LLChatMsgBox::LLChatMsgBox(const Params& p) :
LLTextBox(p),
mBlockSpacing(p.block_spacing)
{}
void LLChatMsgBox::addText( const LLStringExplicit& text , const LLStyle::Params& input_params )
{
S32 length = getLength();
// if there is existing text, add a separator
if (length > 0)
{
// chat separator exists right before the null terminator
insertSegment(new ChatSeparator(length - 1, length - 1));
}
// prepend newline only if there is some existing text
appendText(text, length > 0, input_params);
}
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