/* ** consolebuffer.cpp ** ** manages the text for the console ** **--------------------------------------------------------------------------- ** Copyright 2014 Christoph Oelckers ** All rights reserved. ** ** Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions ** are met: ** ** 1. Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** 2. Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in the ** documentation and/or other materials provided with the distribution. ** 3. The name of the author may not be used to endorse or promote products ** derived from this software without specific prior written permission. ** ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. **--------------------------------------------------------------------------- ** */ #include "c_console.h" #include "c_consolebuffer.h" //========================================================================== // // // //========================================================================== FConsoleBuffer::FConsoleBuffer() { mLogFile = NULL; mAddType = NEWLINE; mLastFont = NULL; mLastDisplayWidth = -1; mLastLineNeedsUpdate = false; mTextLines = 0; mBufferWasCleared = true; mBrokenStart.Push(0); } //========================================================================== // // Adds a new line of text to the console // This is kept as simple as possible. This function does not: // - remove old text if the buffer gets larger than the specified size // - format the text for the current screen layout // // These tasks will only be be performed once per frame because they are // relatively expensive. The old console did them each time text was added // resulting in extremely bad performance with a high output rate. // //========================================================================== void FConsoleBuffer::AddText(int printlevel, const char *text) { FString build = TEXTCOLOR_TAN; if (mAddType == REPLACELINE) { // Just wondering: Do we actually need this case? If so, it may need some work. mConsoleText.Pop(); // remove the line to be replaced mLastLineNeedsUpdate = true; } else if (mAddType == APPENDLINE) { mConsoleText.Pop(build); printlevel = -1; mLastLineNeedsUpdate = true; } if (printlevel >= 0 && printlevel != PRINT_HIGH) { if (printlevel == 200) build = TEXTCOLOR_GREEN; else if (printlevel < PRINTLEVELS) build.Format("%c%c", TEXTCOLOR_ESCAPE, PrintColors[printlevel]+'A'); } size_t textsize = strlen(text); if (text[textsize-1] == '\r') { textsize--; mAddType = REPLACELINE; } else if (text[textsize-1] == '\n') { textsize--; mAddType = NEWLINE; } else { mAddType = APPENDLINE; } // don't bother with linefeeds etc. inside the text, we'll let the formatter sort this out later. build.AppendCStrPart(text, textsize); mConsoleText.Push(build); } //========================================================================== // // Format the text for output // //========================================================================== void FConsoleBuffer::FormatText(FFont *formatfont, int displaywidth) { if (formatfont != mLastFont || displaywidth != mLastDisplayWidth || mBufferWasCleared) { if (mBufferWasCleared) mLastLineNeedsUpdate = false; m_BrokenConsoleText.Clear(); mBrokenStart.Clear(); mBrokenStart.Push(0); mBrokenLines.Clear(); mLastFont = formatfont; mLastDisplayWidth = displaywidth; mBufferWasCleared = false; } unsigned brokensize = m_BrokenConsoleText.Size(); if (brokensize == mConsoleText.Size()) { // The last line got text appended. if (mLastLineNeedsUpdate) { brokensize--; m_BrokenConsoleText.Resize(brokensize); } } mBrokenLines.Resize(mBrokenStart[brokensize]); mBrokenStart.Resize(brokensize); for (unsigned i = brokensize; i < mConsoleText.Size(); i++) { auto bl = V_BreakLines(formatfont, displaywidth, mConsoleText[i], true); m_BrokenConsoleText.Push(bl); mBrokenStart.Push(mBrokenLines.Size()); for(auto &bline : bl) { mBrokenLines.Push(bline); } } mTextLines = mBrokenLines.Size(); mBrokenStart.Push(mTextLines); mLastLineNeedsUpdate = false; } //========================================================================== // // Delete old content if number of lines gets too large // //========================================================================== void FConsoleBuffer::ResizeBuffer(unsigned newsize) { if (mConsoleText.Size() > newsize) { unsigned todelete = mConsoleText.Size() - newsize; mConsoleText.Delete(0, todelete); mBufferWasCleared = true; } }