mirror of
https://github.com/autc04/Retro68.git
synced 2024-09-08 05:54:40 +00:00
543 lines
12 KiB
C++
543 lines
12 KiB
C++
/*
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Copyright 2012-2020 Wolfgang Thaller, Davide Bucci
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This file is part of Retro68.
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Retro68 is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Retro68 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License
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along with Retro68. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "Console.h"
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#include "MacUtils.h"
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#include "Fonts.h"
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#include "Processes.h"
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#include <algorithm>
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using namespace retro;
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Console *Console::currentInstance = NULL;
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Attributes::Attributes(void)
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{
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reset();
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}
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void Attributes::reset(void)
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{
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cBold=false;
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cUnderline=false;
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cItalic=false;
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}
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bool Attributes::isBold(void) const
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{
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return cBold;
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}
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bool Attributes::isUnderline(void) const
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{
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return cUnderline;
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}
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bool Attributes::isItalic(void) const
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{
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return cItalic;
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}
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void Attributes::setBold(const bool v)
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{
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cBold=v;
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}
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void Attributes::setItalic(const bool v)
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{
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cItalic=v;
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}
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void Attributes::setUnderline(const bool v)
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{
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cUnderline=v;
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}
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inline bool operator==(const Attributes& lhs, const Attributes& rhs)
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{
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return lhs.isBold()==rhs.isBold() && lhs.isUnderline()==rhs.isUnderline() && lhs.isItalic()==rhs.isItalic();
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}
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inline bool operator!=(const Attributes& lhs, const Attributes& rhs)
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{
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return !(lhs == rhs);
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}
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inline bool operator==(const AttributedChar& lhs, const AttributedChar& rhs)
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{
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return lhs.c==rhs.c && lhs.attrs==rhs.attrs;
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}
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inline bool operator!=(const AttributedChar& lhs, const AttributedChar& rhs)
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{
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return !(lhs == rhs);
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}
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namespace
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{
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class FontSetup
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{
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short saveFont, saveSize, saveFace;
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public:
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FontSetup()
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{
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#if TARGET_API_MAC_CARBON
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GrafPtr port;
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GetPort(&port);
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saveFont = GetPortTextFont(port);
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saveSize = GetPortTextSize(port);
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#else
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saveFont = qd.thePort->txFont;
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saveSize = qd.thePort->txSize;
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saveFace = qd.thePort->txFace;
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#endif
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TextFont(kFontIDMonaco);
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TextSize(9);
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TextFace(normal);
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}
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~FontSetup()
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{
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TextFont(saveFont);
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TextSize(saveSize);
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TextFace(saveFace);
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}
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};
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}
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Console::Console()
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{
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}
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Console::Console(GrafPtr port, Rect r)
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{
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Init(port, r);
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}
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Console::~Console()
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{
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if(currentInstance == this)
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currentInstance = NULL;
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}
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void Console::Init(GrafPtr port, Rect r)
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{
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consolePort = port;
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bounds = r;
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PortSetter setport(consolePort);
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FontSetup fontSetup;
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InsetRect(&bounds, 2,2);
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cellSizeY = 12;
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cellSizeX = CharWidth('M');
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rows = (bounds.bottom - bounds.top) / cellSizeY;
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cols = (bounds.right - bounds.left) / cellSizeX;
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chars = std::vector<AttributedChar>(rows*cols, AttributedChar(' ',currentAttr));
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onscreen = chars;
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cursorX = cursorY = 0;
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isProcessingEscSequence=false;
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}
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void Console::SetAttributes(Attributes aa)
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{
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TextFace(aa.isBold()?bold+condense:0 + aa.isUnderline()?underline:0 + aa.isItalic()?italic:0);
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}
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Rect Console::CellRect(short x, short y)
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{
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return { (short) (bounds.top + y * cellSizeY), (short) (bounds.left + x * cellSizeX),
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(short) (bounds.top + (y+1) * cellSizeY), (short) (bounds.left + (x+1) * cellSizeX) };
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}
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void Console::DrawCell(short x, short y, bool erase)
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{
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Rect r = CellRect(x,y);
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if(cursorDrawn)
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{
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if(y == cursorY && x == cursorX)
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{
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erase = true;
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cursorDrawn = false;
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}
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}
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if(erase)
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EraseRect(&r);
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MoveTo(r.left, r.bottom - 2);
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DrawChar(chars[y * cols + x].c);
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}
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void Console::DrawCells(short x1, short x2, short y, bool erase)
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{
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Rect r = { (short) (bounds.top + y * cellSizeY), (short) (bounds.left + x1 * cellSizeX),
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(short) (bounds.top + (y+1) * cellSizeY), (short) (bounds.left + x2 * cellSizeX) };
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if(cursorDrawn)
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{
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if(y == cursorY && x1 <= cursorX && x2 > cursorX)
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{
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erase = true;
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cursorDrawn = false;
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}
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}
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if(erase)
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EraseRect(&r);
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MoveTo(r.left, r.bottom - 2);
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Attributes a=chars[y * cols + x1].attrs;
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SetAttributes(a);
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for(int i=x1; i<x2; ++i)
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{
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if(a!=chars[y * cols + i].attrs) {
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a=chars[y * cols + i].attrs;
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SetAttributes(a);
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}
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DrawChar(chars[y * cols + i].c);
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}
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}
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void Console::Draw(Rect r)
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{
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if(!consolePort)
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return;
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PortSetter setport(consolePort);
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FontSetup fontSetup;
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SectRect(&r, &bounds, &r);
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short minRow = std::max(0, (r.top - bounds.top) / cellSizeY);
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short maxRow = std::min((int)rows, (r.bottom - bounds.top + cellSizeY - 1) / cellSizeY);
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short minCol = 0;// std::max(0, (r.left - bounds.left) / cellSizeX);
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short maxCol = cols; //;std::min((int)cols, (r.right - bounds.left + cellSizeX - 1) / cellSizeX);
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EraseRect(&r);
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for(short row = minRow; row < maxRow; ++row)
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{
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DrawCells(minCol, maxCol, row, false);
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}
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if(cursorDrawn)
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{
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Rect cursor = CellRect(cursorX, cursorY);
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InvertRect(&cursor);
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}
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onscreen = chars;
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}
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void Console::ScrollUp(short n)
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{
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cursorY--;
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std::copy(chars.begin() + cols, chars.end(), chars.begin());
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std::fill(chars.end() - cols, chars.end(), AttributedChar(' ', currentAttr));
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std::copy(onscreen.begin() + cols, onscreen.end(), onscreen.begin());
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std::fill(onscreen.end() - cols, onscreen.end(), AttributedChar(' ', currentAttr));
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RgnHandle rgn = NewRgn();
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ScrollRect(&bounds, 0, -cellSizeY, rgn);
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DisposeRgn(rgn);
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dirtyRect.top = dirtyRect.top > 0 ? dirtyRect.top - 1 : 0;
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dirtyRect.bottom = dirtyRect.bottom > 0 ? dirtyRect.bottom - 1 : 0;
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}
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void Console::ProcessEscSequence(char c)
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{
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switch(sequenceStep)
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{
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case 0:
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if(c=='[')
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++sequenceStep;
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else
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isProcessingEscSequence=false;
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break;
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case 1:
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++sequenceStep;
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switch(c)
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{
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case '0': // Normal character
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currentAttr.reset();
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break;
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case '1': // Bold
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currentAttr.setBold(true);
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break;
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case '3': // Italic
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currentAttr.setItalic(true);
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break;
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case '4': // Underline
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currentAttr.setUnderline(true);
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break;
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default:
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isProcessingEscSequence=false;
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}
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break;
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case 2:
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if(c=='m')
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isProcessingEscSequence=false;
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else if(c==';')
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sequenceStep=1;
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else
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isProcessingEscSequence=false;
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break;
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default:
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sequenceStep=0;
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}
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}
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void Console::PutCharNoUpdate(char c)
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{
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if(isProcessingEscSequence)
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{
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ProcessEscSequence(c);
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return;
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}
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InvalidateCursor();
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switch(c)
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{
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case '\033': // Begin of an ANSI escape sequence
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isProcessingEscSequence=true;
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sequenceStep=0;
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break;
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case '\r':
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cursorX = 0;
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break;
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case '\n':
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cursorY++;
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cursorX = 0;
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if(cursorY >= rows)
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ScrollUp();
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break;
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default:
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chars[cursorY * cols + cursorX].c = c;
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chars[cursorY * cols + cursorX].attrs = currentAttr;
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if(dirtyRect.right == 0)
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{
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dirtyRect.right = (dirtyRect.left = cursorX) + 1;
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dirtyRect.bottom = (dirtyRect.top = cursorY) + 1;
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}
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else
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{
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dirtyRect.left = std::min(dirtyRect.left, cursorX);
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dirtyRect.top = std::min(dirtyRect.top, cursorY);
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dirtyRect.right = std::max(dirtyRect.right, short(cursorX + 1));
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dirtyRect.bottom = std::max(dirtyRect.bottom, short(cursorY + 1));
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}
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cursorX++;
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if(cursorX >= cols)
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PutCharNoUpdate('\n');
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// This is to make sure the cursor width is calculated correctly
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chars[cursorY * cols + cursorX].attrs = currentAttr;
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}
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}
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void Console::Update()
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{
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PortSetter setport(consolePort);
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FontSetup fontSetup;
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for(short row = dirtyRect.top; row < dirtyRect.bottom; ++row)
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{
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short start = -1;
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bool needclear = false;
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for(short col = dirtyRect.left; col < dirtyRect.right; ++col)
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{
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AttributedChar old = onscreen[row * cols + col];
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if(chars[row * cols + col] != old)
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{
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if(start == -1)
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start = col;
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if(old.c != ' ')
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needclear = true;
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onscreen[row * cols + col] = chars[row * cols + col];
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}
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else
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{
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if(start != -1)
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DrawCells(start, col, row, needclear);
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start = -1;
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needclear = false;
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}
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}
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if(start != -1)
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DrawCells(start, dirtyRect.right, row, needclear);
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}
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dirtyRect = Rect();
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if(cursorVisible != cursorDrawn)
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{
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Rect r = CellRect(cursorX, cursorY);
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if(cursorDrawn)
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DrawCell(cursorX, cursorY, true);
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else
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InvertRect(&r);
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cursorDrawn = !cursorDrawn;
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}
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#if TARGET_API_MAC_CARBON
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QDFlushPortBuffer(consolePort,NULL);
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#endif
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}
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void Console::putch(char c)
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{
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if(!rows)
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return;
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PutCharNoUpdate(c);
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Update();
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}
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void Console::write(const char *p, int n)
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{
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if(!rows)
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return;
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for(int i = 0; i < n; i++)
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Console::currentInstance->PutCharNoUpdate(*p++);
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Update();
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}
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std::string Console::ReadLine()
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{
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if(!consolePort)
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return "";
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std::string buffer;
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char c;
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do
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{
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c = WaitNextChar();
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if(!c)
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{
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eof = true;
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return "";
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}
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if(c == '\r')
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c = '\n';
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if(c == '\b')
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{
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if(buffer.size())
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{
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InvalidateCursor();
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cursorX--;
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PutCharNoUpdate(' ');
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cursorX--;
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Update();
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buffer.resize(buffer.size()-1);
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}
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continue;
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}
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putch(c);
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buffer.append(1,c);
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} while(c != '\n');
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return buffer;
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}
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void Console::InvalidateCursor()
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{
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if(cursorDrawn)
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{
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PortSetter setport(consolePort);
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DrawCell(cursorX, cursorY, true);
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cursorDrawn = false;
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}
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}
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void Console::Idle()
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{
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long ticks = TickCount();
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if(ticks - blinkTicks > 60)
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{
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cursorVisible = !cursorVisible;
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blinkTicks = ticks;
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Update();
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}
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}
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void Console::Reshape(Rect newBounds)
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{
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if(!consolePort)
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return;
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InsetRect(&newBounds, 2,2);
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bounds = newBounds;
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short newRows = (bounds.bottom - bounds.top) / cellSizeY;
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short newCols = (bounds.right - bounds.left) / cellSizeX;
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short upshift = 0;
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if(cursorY >= newRows)
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{
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upshift = cursorY - (newRows - 1);
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InvalidateCursor();
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cursorY = newRows - 1;
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}
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std::vector<AttributedChar> newChars(newRows*newCols, AttributedChar(' ', currentAttr));
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for(short row = 0; row < newRows && row + upshift < rows; row++)
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{
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AttributedChar *src = &chars[(row+upshift) * cols];
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AttributedChar *dst = &newChars[row * newCols];
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std::copy(src, src + std::min(cols, newCols), dst);
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}
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chars.swap(newChars);
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/*newChars = std::vector<char>(newRows*newCols, ' ');
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for(short row = 0; row < newRows && row < rows; row++)
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{
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char *src = &chars[row * cols];
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char *dst = &newChars[row * newCols];
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std::copy(src, src + std::min(cols, newCols), dst);
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}
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onscreen.swap(newChars);*/
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onscreen = newChars;
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rows = newRows;
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cols = newCols;
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if(upshift)
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{
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//dirtyRect = Rect { 0, 0, rows, cols };
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//Update();
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Draw();
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}
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}
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char Console::WaitNextChar()
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{
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return 0;
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}
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