/** * @file llconsole.cpp * @brief a scrolling console output device * * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * 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 "linden_common.h" #include "llconsole.h" // linden library includes #include "llmath.h" //#include "llviewercontrol.h" #include "llcriticaldamp.h" #include "llfontgl.h" #include "llgl.h" #include "llui.h" #include "lluiimage.h" //#include "llviewerimage.h" //#include "llviewerimagelist.h" //#include "llviewerwindow.h" #include "llsd.h" #include "llfontgl.h" #include "llmath.h" //#include "llstartup.h" // Used for LCD display extern void AddNewDebugConsoleToLCD(const LLWString &newLine); LLConsole* gConsole = NULL; // Created and destroyed in LLViewerWindow. const F32 FADE_DURATION = 2.f; const S32 MIN_CONSOLE_WIDTH = 200; static LLDefaultChildRegistry::Register<LLConsole> r("console"); LLConsole::LLConsole(const LLConsole::Params& p) : LLUICtrl(p), LLFixedBuffer(p.max_lines), mLinePersistTime(p.persist_time), // seconds mFont(p.font), mConsoleWidth(0), mConsoleHeight(0) { if (p.font_size_index.isProvided()) { setFontSize(p.font_size_index); } mFadeTime = mLinePersistTime - FADE_DURATION; setMaxLines(LLUI::sSettingGroups["config"]->getS32("ConsoleMaxLines")); } void LLConsole::setLinePersistTime(F32 seconds) { mLinePersistTime = seconds; mFadeTime = mLinePersistTime - FADE_DURATION; } void LLConsole::reshape(S32 width, S32 height, BOOL called_from_parent) { S32 new_width = llmax(50, llmin(getRect().getWidth(), width)); S32 new_height = llmax(llfloor(mFont->getLineHeight()) + 15, llmin(getRect().getHeight(), height)); if ( mConsoleWidth == new_width && mConsoleHeight == new_height ) { return; } mConsoleWidth = new_width; mConsoleHeight= new_height; LLUICtrl::reshape(new_width, new_height, called_from_parent); for(paragraph_t::iterator paragraph_it = mParagraphs.begin(); paragraph_it != mParagraphs.end(); paragraph_it++) { (*paragraph_it).updateLines((F32)getRect().getWidth(), mFont, true); } } void LLConsole::setFontSize(S32 size_index) { if (-1 == size_index) { mFont = LLFontGL::getFontMonospace(); } else if (0 == size_index) { mFont = LLFontGL::getFontSansSerif(); } else if (1 == size_index) { mFont = LLFontGL::getFontSansSerifBig(); } else { mFont = LLFontGL::getFontSansSerifHuge(); } // Make sure the font exists if (mFont == NULL) { mFont = LLFontGL::getFontDefault(); } for(paragraph_t::iterator paragraph_it = mParagraphs.begin(); paragraph_it != mParagraphs.end(); paragraph_it++) { (*paragraph_it).updateLines((F32)getRect().getWidth(), mFont, true); } } void LLConsole::draw() { // Units in pixels static const F32 padding_horizontal = 10; static const F32 padding_vertical = 3; LLGLSUIDefault gls_ui; // skip lines added more than mLinePersistTime ago F32 cur_time = mTimer.getElapsedTimeF32(); F32 skip_time = cur_time - mLinePersistTime; F32 fade_time = cur_time - mFadeTime; if (mParagraphs.empty()) //No text to draw. { return; } U32 num_lines=0; paragraph_t::reverse_iterator paragraph_it; paragraph_it = mParagraphs.rbegin(); U32 paragraph_num=mParagraphs.size(); while (!mParagraphs.empty() && paragraph_it != mParagraphs.rend()) { num_lines += (*paragraph_it).mLines.size(); if(num_lines > mMaxLines || ( (mLinePersistTime > (F32)0.f) && ((*paragraph_it).mAddTime - skip_time)/(mLinePersistTime - mFadeTime) <= (F32)0.f)) { //All lines above here are done. Lose them. for (U32 i=0;i<paragraph_num;i++) { if (!mParagraphs.empty()) mParagraphs.pop_front(); } break; } paragraph_num--; paragraph_it++; } if (mParagraphs.empty()) { return; } // draw remaining lines F32 y_pos = 0.f; LLUIImagePtr imagep = LLUI::getUIImage("transparent"); F32 console_opacity = llclamp(LLUI::sSettingGroups["config"]->getF32("ConsoleBackgroundOpacity"), 0.f, 1.f); LLColor4 color = LLUIColorTable::instance().getColor("ConsoleBackground"); color.mV[VALPHA] *= console_opacity; F32 line_height = mFont->getLineHeight(); for(paragraph_it = mParagraphs.rbegin(); paragraph_it != mParagraphs.rend(); paragraph_it++) { S32 target_height = llfloor( (*paragraph_it).mLines.size() * line_height + padding_vertical); S32 target_width = llfloor( (*paragraph_it).mMaxWidth + padding_horizontal); y_pos += ((*paragraph_it).mLines.size()) * line_height; imagep->drawSolid(-14, (S32)(y_pos + line_height - target_height), target_width, target_height, color); F32 y_off=0; F32 alpha; if ((mLinePersistTime > 0.f) && ((*paragraph_it).mAddTime < fade_time)) { alpha = ((*paragraph_it).mAddTime - skip_time)/(mLinePersistTime - mFadeTime); } else { alpha = 1.0f; } if( alpha > 0.f ) { for (lines_t::iterator line_it=(*paragraph_it).mLines.begin(); line_it != (*paragraph_it).mLines.end(); line_it ++) { for (line_color_segments_t::iterator seg_it = (*line_it).mLineColorSegments.begin(); seg_it != (*line_it).mLineColorSegments.end(); seg_it++) { mFont->render((*seg_it).mText, 0, (*seg_it).mXPosition - 8, y_pos - y_off, LLColor4( (*seg_it).mColor.mV[VRED], (*seg_it).mColor.mV[VGREEN], (*seg_it).mColor.mV[VBLUE], (*seg_it).mColor.mV[VALPHA]*alpha), LLFontGL::LEFT, LLFontGL::BASELINE, LLFontGL::NORMAL, LLFontGL::DROP_SHADOW, S32_MAX, target_width ); } y_off += line_height; } } y_pos += padding_vertical; } } //Generate highlight color segments for this paragraph. Pass in default color of paragraph. void LLConsole::Paragraph::makeParagraphColorSegments (const LLColor4 &color) { LLSD paragraph_color_segments; LLColor4 lcolor=color; paragraph_color_segments[0]["text"] =wstring_to_utf8str(mParagraphText); LLSD color_sd = color.getValue(); paragraph_color_segments[0]["color"]=color_sd; for(LLSD::array_const_iterator color_segment_it = paragraph_color_segments.beginArray(); color_segment_it != paragraph_color_segments.endArray(); ++color_segment_it) { LLSD color_llsd = (*color_segment_it)["color"]; std::string color_str = (*color_segment_it)["text"].asString(); ParagraphColorSegment color_segment; color_segment.mColor.setValue(color_llsd); color_segment.mNumChars = color_str.length(); mParagraphColorSegments.push_back(color_segment); } } //Called when a paragraph is added to the console or window is resized. void LLConsole::Paragraph::updateLines(F32 screen_width, const LLFontGL* font, bool force_resize) { if ( !force_resize ) { if ( mMaxWidth >= 0.0f && mMaxWidth < screen_width ) { return; //No resize required. } } screen_width = screen_width - 30; //Margin for small windows. if ( mParagraphText.empty() || mParagraphColorSegments.empty() || font == NULL) { return; //Not enough info to complete. } mLines.clear(); //Chuck everything. mMaxWidth = 0.0f; paragraph_color_segments_t::iterator current_color = mParagraphColorSegments.begin(); U32 current_color_length = (*current_color).mNumChars; S32 paragraph_offset = 0; //Offset into the paragraph text. // Wrap lines that are longer than the view is wide. while( paragraph_offset < (S32)mParagraphText.length() && mParagraphText[paragraph_offset] != 0) { S32 skip_chars; // skip '\n' // Figure out if a word-wrapped line fits here. LLWString::size_type line_end = mParagraphText.find_first_of(llwchar('\n'), paragraph_offset); if (line_end != LLWString::npos) { skip_chars = 1; // skip '\n' } else { line_end = mParagraphText.size(); skip_chars = 0; } U32 drawable = font->maxDrawableChars(mParagraphText.c_str()+paragraph_offset, screen_width, line_end - paragraph_offset, LLFontGL::WORD_BOUNDARY_IF_POSSIBLE); if (drawable != 0) { F32 x_position = 0; //Screen X position of text. mMaxWidth = llmax( mMaxWidth, (F32)font->getWidth( mParagraphText.substr( paragraph_offset, drawable ).c_str() ) ); Line line; U32 left_to_draw = drawable; U32 drawn = 0; while (left_to_draw >= current_color_length && current_color != mParagraphColorSegments.end() ) { LLWString color_text = mParagraphText.substr( paragraph_offset + drawn, current_color_length ); line.mLineColorSegments.push_back( LineColorSegment( color_text, //Append segment to line. (*current_color).mColor, x_position ) ); x_position += font->getWidth( color_text.c_str() ); //Set up next screen position. drawn += current_color_length; left_to_draw -= current_color_length; current_color++; //Goto next paragraph color record. if (current_color != mParagraphColorSegments.end()) { current_color_length = (*current_color).mNumChars; } } if (left_to_draw > 0 && current_color != mParagraphColorSegments.end() ) { LLWString color_text = mParagraphText.substr( paragraph_offset + drawn, left_to_draw ); line.mLineColorSegments.push_back( LineColorSegment( color_text, //Append segment to line. (*current_color).mColor, x_position ) ); current_color_length -= left_to_draw; } mLines.push_back(line); //Append line to paragraph line list. } paragraph_offset += (drawable + skip_chars); } } //Pass in the string and the default color for this block of text. LLConsole::Paragraph::Paragraph (LLWString str, const LLColor4 &color, F32 add_time, const LLFontGL* font, F32 screen_width) : mParagraphText(str), mAddTime(add_time), mMaxWidth(-1) { makeParagraphColorSegments(color); updateLines( screen_width, font ); } // called once per frame regardless of console visibility // static void LLConsole::updateClass() { for (instance_iter it = beginInstances(); it != endInstances(); ++it) { it->update(); } } void LLConsole::update() { { LLMutexLock lock(&mMutex); while (!mLines.empty()) { mParagraphs.push_back( Paragraph( mLines.front(), LLColor4::white, mTimer.getElapsedTimeF32(), mFont, (F32)getRect().getWidth())); mLines.pop_front(); } } // remove old paragraphs which can't possibly be visible any more. ::draw() will do something similar but more conservative - we do this here because ::draw() isn't guaranteed to ever be called! (i.e. the console isn't visible) while ((S32)mParagraphs.size() > llmax((S32)0, (S32)(mMaxLines))) { mParagraphs.pop_front(); } }