mirror of
https://github.com/ZDoom/gzdoom.git
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313 lines
8.8 KiB
C++
313 lines
8.8 KiB
C++
/*
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** consolebuffer.cpp
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**
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** manages the text for the console
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**
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**---------------------------------------------------------------------------
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** Copyright 2014 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#include "c_console.h"
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#include "c_consolebuffer.h"
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FConsoleBuffer::FConsoleBuffer()
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{
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mLogFile = NULL;
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mAddType = NEWLINE;
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mLastFont = NULL;
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mLastDisplayWidth = -1;
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mLastLineNeedsUpdate = false;
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mTextLines = 0;
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mBufferWasCleared = true;
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mBrokenStart.Push(0);
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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FConsoleBuffer::~FConsoleBuffer()
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{
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FreeBrokenText();
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FConsoleBuffer::FreeBrokenText(unsigned start, unsigned end)
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{
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if (end > m_BrokenConsoleText.Size()) end = m_BrokenConsoleText.Size();
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for (unsigned i = start; i < end; i++)
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{
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m_BrokenConsoleText[i].Clear();
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m_BrokenConsoleText[i].ShrinkToFit();
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}
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}
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//==========================================================================
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//
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// Adds a new line of text to the console
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// This is kept as simple as possible. This function does not:
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// - remove old text if the buffer gets larger than the specified size
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// - format the text for the current screen layout
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//
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// These tasks will only be be performed once per frame because they are
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// relatively expensive. The old console did them each time text was added
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// resulting in extremely bad performance with a high output rate.
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//
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//==========================================================================
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void FConsoleBuffer::AddText(int printlevel, const char *text, FILE *logfile)
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{
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FString build = TEXTCOLOR_TAN;
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if (mAddType == REPLACELINE)
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{
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// Just wondering: Do we actually need this case? If so, it may need some work.
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mConsoleText.Pop(); // remove the line to be replaced
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mLastLineNeedsUpdate = true;
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}
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else if (mAddType == APPENDLINE)
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{
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mConsoleText.Pop(build);
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printlevel = -1;
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mLastLineNeedsUpdate = true;
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}
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if (printlevel >= 0 && printlevel != PRINT_HIGH)
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{
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if (printlevel == 200) build = TEXTCOLOR_GREEN;
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else if (printlevel < PRINTLEVELS) build.Format("%c%c", TEXTCOLOR_ESCAPE, PrintColors[printlevel]);
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}
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size_t textsize = strlen(text);
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if (text[textsize-1] == '\r')
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{
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textsize--;
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mAddType = REPLACELINE;
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}
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else if (text[textsize-1] == '\n')
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{
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textsize--;
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mAddType = NEWLINE;
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}
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else
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{
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mAddType = APPENDLINE;
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}
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// don't bother about linefeeds etc. inside the text, we'll let the formatter sort this out later.
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build.AppendCStrPart(text, textsize);
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mConsoleText.Push(build);
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if (logfile != NULL) WriteLineToLog(logfile, text);
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FConsoleBuffer::WriteLineToLog(FILE *LogFile, const char *outline)
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{
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// Strip out any color escape sequences before writing to the log file
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TArray<char> copy(strlen(outline)+1);
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const char * srcp = outline;
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char * dstp = copy.Data();
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while (*srcp != 0)
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{
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if (*srcp != TEXTCOLOR_ESCAPE)
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{
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switch (*srcp)
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{
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case '\35':
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*dstp++ = '<';
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break;
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case '\36':
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*dstp++ = '-';
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break;
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case '\37':
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*dstp++ = '>';
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break;
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default:
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*dstp++=*srcp;
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break;
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}
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srcp++;
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}
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else if (srcp[1] == '[')
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{
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srcp+=2;
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while (*srcp != ']' && *srcp != 0) srcp++;
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if (*srcp == ']') srcp++;
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}
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else
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{
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if (srcp[1]!=0) srcp+=2;
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else break;
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}
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}
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*dstp=0;
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fputs (copy.Data(), LogFile);
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fflush (LogFile);
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void FConsoleBuffer::WriteContentToLog(FILE *LogFile)
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{
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if (LogFile != NULL)
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{
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for (unsigned i = 0; i < mConsoleText.Size(); i++)
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{
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WriteLineToLog(LogFile, mConsoleText[i]);
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}
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}
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}
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//==========================================================================
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//
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// ensures that the following text is not appended to the current line.
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//
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//==========================================================================
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void FConsoleBuffer::Linefeed(FILE *Logfile)
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{
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if (mAddType != NEWLINE && Logfile != NULL) fputc('\n', Logfile);
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mAddType = NEWLINE;
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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static const char bar1[] = TEXTCOLOR_RED "\35\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36"
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"\36\36\36\36\36\36\36\36\36\36\36\36\37" TEXTCOLOR_TAN "\n";
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static const char bar2[] = TEXTCOLOR_RED "\35\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36"
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"\36\36\36\36\36\36\36\36\36\36\36\36\37" TEXTCOLOR_GREEN "\n";
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static const char bar3[] = TEXTCOLOR_RED "\35\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36"
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"\36\36\36\36\36\36\36\36\36\36\36\36\37" TEXTCOLOR_NORMAL "\n";
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void FConsoleBuffer::AddMidText(const char *string, bool bold, FILE *Logfile)
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{
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Linefeed(Logfile);
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AddText (-1, bold? bar2 : bar1, Logfile);
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AddText (-1, string, Logfile);
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Linefeed(Logfile);
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AddText(-1, bar3, Logfile);
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}
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//==========================================================================
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//
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// Format the text for output
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//
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//==========================================================================
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void FConsoleBuffer::FormatText(FFont *formatfont, int displaywidth)
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{
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if (formatfont != mLastFont || displaywidth != mLastDisplayWidth || mBufferWasCleared)
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{
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FreeBrokenText();
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m_BrokenConsoleText.Clear();
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mBrokenStart.Clear();
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mBrokenStart.Push(0);
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mBrokenLines.Clear();
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mLastFont = formatfont;
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mLastDisplayWidth = displaywidth;
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mBufferWasCleared = false;
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}
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unsigned brokensize = m_BrokenConsoleText.Size();
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if (brokensize == mConsoleText.Size())
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{
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// The last line got text appended. We have to wait until here to format it because
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// it is possible that during display new text will be added from the NetUpdate calls in the software version of DrawTextureV.
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if (mLastLineNeedsUpdate)
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{
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brokensize--;
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m_BrokenConsoleText.Resize(brokensize);
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}
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}
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mBrokenLines.Resize(mBrokenStart[brokensize]);
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mBrokenStart.Resize(brokensize);
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for (unsigned i = brokensize; i < mConsoleText.Size(); i++)
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{
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auto bl = V_BreakLines(formatfont, displaywidth, mConsoleText[i], true);
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m_BrokenConsoleText.Push(bl);
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mBrokenStart.Push(mBrokenLines.Size());
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for(auto &bline : bl)
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{
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mBrokenLines.Push(bline);
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}
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}
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mTextLines = mBrokenLines.Size();
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mBrokenStart.Push(mTextLines);
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mLastLineNeedsUpdate = false;
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}
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//==========================================================================
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//
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// Delete old content if number of lines gets too large
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//
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//==========================================================================
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void FConsoleBuffer::ResizeBuffer(unsigned newsize)
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{
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if (mConsoleText.Size() > newsize)
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{
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unsigned todelete = mConsoleText.Size() - newsize;
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mConsoleText.Delete(0, todelete);
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mBufferWasCleared = true;
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}
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}
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