125 lines
2.3 KiB
C++
125 lines
2.3 KiB
C++
#include "./memPrint.hpp"
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//Constructor
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memPrint::memPrint(){
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//Initialise position
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this->m_cursorX=0;
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this->m_cursorY=0;
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//Initialise color
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this->setBackground(BLACK);
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this->setForeground(WHITE);
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}
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//Destructor
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memPrint::~memPrint(){
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}
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//Move cursor
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void memPrint::updateCursor(){
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//Update X axis
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this->m_cursorX++;
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//Check X value
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if(this->m_cursorX >= MAXCURSORX){
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//If X is out of the screen
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this->m_cursorX=0;
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//Update Y
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this->m_cursorY++;
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//Check Y value
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if(this->m_cursorY >= MAXCURSORY){
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//If Y is out of the screen
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this->scrollUp(1);
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//Decrease Y value
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this->m_cursorY--;
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}
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}
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}
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//Change character background color
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void memPrint::setBackground(colorBios color){
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u8 newColor= (color << 4);
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this->m_colors= newColor | ((this->m_colors << 4) >> 4);
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}
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//Change character color
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void memPrint::setForeground(colorBios color){
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u8 newColor= color;
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this->m_colors= newColor | ((this->m_colors >> 4) << 4);
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}
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//Print a char
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void memPrint::putChar(u8 character){
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//Get the adresse with the cursor position
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char *adress= ((char *) MEMPRINTSTARTADR) + (this->m_cursorX * 2) + (this->m_cursorY * MAXCURSORX * 2);
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//Copy the character
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*adress=character;
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//Copy his attribute
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adress++;
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*adress=this->m_colors;
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//Update cursor position
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this->updateCursor();
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}
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//Print a char*
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void memPrint::print(char *str){
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while(*str!=0x0){
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this->putChar(*str);
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str++;
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}
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}
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//Clear the screen
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void memPrint::clear(){
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this->scrollUp(MAXCURSORY);
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}
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//Scroll up "number" times
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void memPrint::scrollUp(u8 number){
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//Get number of adress (char & his attribute) to scroll
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int nbAdrToScroll=number*MAXCURSORX*2;
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//Scroll all of the characters and attributes
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for(int i=0;i!=MAXCURSORX*2*MAXCURSORY;i++){
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//Get source character or attribute
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char* source=(((char *)MEMPRINTSTARTADR) + i);
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//Get destination character or attribute
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char* dest=source-nbAdrToScroll;
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//Check if destination is out of the screen
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if(dest >= (char *)MEMPRINTSTARTADR)
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*dest=*source;
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//Remove data from source
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*source=0x0;
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}
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}
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