/** * @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*/ LLTextSegmentPtr clone(LLTextBase& target) const { ChatSeparator* copy = new ChatSeparator(mStart, mEnd); if (mEditor) { copy->mEditor = ⌖ } return copy; } /*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 LLRectf& draw_rect) { gl_line_2d((S32)(draw_rect.mLeft + 5), (S32)draw_rect.getCenterY(), (S32)(draw_rect.mRight - 5), (S32)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); }