Startpunkten

Template_List/twindow.cpp

@@ -0,0 +1,196 @@
+#include <dos.h>
+#include <conio.h>
+#include <bios.h>
+#include <string.h>
+#include <ctype.h>
+#include "twindow.hpp"
+
+const int MAXX=80;
+const int MAXY=25;
+const int MINX=0;
+const int MINY=0;
+class Display
+{
+public:
+  typedef unsigned far* ScreenPtr;
+  static void drawChar(unsigned x,unsigned y, char c, unsigned fg, unsigned bg);
+};
+void Display::drawChar(unsigned x,unsigned y, char c, unsigned fg, unsigned bg)
+{
+  ScreenPtr display = (ScreenPtr)MK_FP(0xB800,0x0);
+  display[y*80+x] = (((bg<<4)|fg)<<8)|(c & 255);
+}
+//=============================================================================
+// default constructor: skapar fönstret med vissa koordinater och färger
+//-----------------------------------------------------------------------------
+TWindow::TWindow()
+{
+  Left=10;Right=18;Bottom=18;Top=15;background=BLUE;foreground=WHITE;
+  text=NULL;
+}
+//=============================================================================
+// constructor: skapar fönstret med vissa koordinater och färger
+//-----------------------------------------------------------------------------
+TWindow::TWindow(unsigned left,unsigned top,unsigned right ,unsigned bottom, DColor bg, DColor fg):
+Left(left),Right(right),Bottom(bottom),Top(top),background(bg), foreground(fg)
+{
+  theState = 0;//FALSE;
+  text=NULL;
+}
+
+//=============================================================================
+// destructor: förstör fönstret
+//-----------------------------------------------------------------------------
+TWindow::~TWindow()
+{
+  if(isVisible())
+    hide();
+}
+
+//=============================================================================
+// hide: gömmer fönstret
+//-----------------------------------------------------------------------------
+void TWindow::hide()
+{
+  erase();
+}
+//=============================================================================
+// show: visar fönstret
+//-----------------------------------------------------------------------------
+void TWindow::display()
+{
+  draw();
+  if(text)
+    showText();
+}
+
+//=============================================================================
+// draw: ritar upp fönstret
+//-----------------------------------------------------------------------------
+void TWindow::draw()
+{
+  theState = 1;//;TRUE;
+  for(int j= Top; j< Bottom; j++ )
+    for(int i=Left; i< Right ; i++ ) {
+      Display::drawChar(i,j,' ',foreground,background);
+    }
+  drawBorder();
+}
+
+//=============================================================================
+// erase: ritar över fönstret med svart
+//-----------------------------------------------------------------------------
+void TWindow::erase()
+{
+  for(int j= Top; j<= Bottom; j++ )
+    for(int i=Left; i<= Right ; i++ )
+      Display::drawChar(i,j,' ',BLACK,BLACK);
+  theState = 0;//FALSE;
+}
+
+//=============================================================================
+// drewBorder: ritar ramen runt fönstret
+//-----------------------------------------------------------------------------
+void TWindow::drawBorder()
+{
+  for(int i=Left+1; i< Right; i++)Display::drawChar(i	,Top		  , HLine		, foreground, background);
+  for(    i=Left+1; i< Right; i++)Display::drawChar(i	,Bottom		, HLine		, foreground, background);
+  for(    i=Top+1;  i< Bottom; i++)Display::drawChar(Left	,i		, VLine		, foreground, background);
+  for(    i=Top+1;  i< Bottom; i++)Display::drawChar(Right	,i		, VLine		, foreground, background);
+  Display::drawChar(Left	,Top		, LeftTop		, foreground, background);
+  Display::drawChar(Right	,Top		,RightTop		, foreground, background);
+  Display::drawChar(Right	,Bottom	,RightBottom, foreground, background);
+  Display::drawChar(Left	,Bottom	, LeftBottom, foreground, background);
+}
+void TWindow::move(unsigned relX, unsigned relY)
+{
+  Left=Left+relX;
+  Right=Right+relX;
+  Top=Top+relY;
+  Bottom=Bottom+relY;
+}
+void TWindow::moveAbs(unsigned x, unsigned y)
+{
+  unsigned width=Right-Left;
+  unsigned height=Bottom-Top;
+  Left=x;
+  Right=x+width;
+  Top=y;
+  Bottom=y+height;
+}
+
+void TWindow::setText(char* txt)
+{
+  text=new char[strlen(txt)];
+  strcpy(text, txt);
+}
+void TWindow::showText()
+{
+  int x=Left+1,y=Top+1;
+  for(int i=0;i<strlen(text);i++) {
+    Display::drawChar(x, y, text[i], foreground, background);
+    if(++x>=Right) {
+      x=Left+1;
+      y++;
+    }
+  }
+}
+void TWindow::editText()
+{
+  int i=0;
+  delete text;
+  int size=(Right-Left-1)*(Bottom-Top-1);
+  text=new char[size];
+  text[0]='\0';
+  char* buffer=new char[size];
+  while(((buffer[i]=bioskey(0))!=ENTER)&&(i<size)) {
+    if(buffer[i]==BACK) {
+      text[i-1]='\0';
+      if(--i<0)i=0;
+      draw();
+      showText();
+    }
+    else if(buffer[i]==ESC) {
+      delete text;
+      text=NULL;
+      draw();
+      return;
+    }
+    else if(isalnum(buffer[i])||buffer[i]==' ') {
+      text[i]=buffer[i];
+      text[i+1]='\0';
+      showText();
+      i++;
+    }
+  }
+}
+TWindow& TWindow::operator=(TWindow& t)
+{
+  delete text;
+  text=new char[strlen(t.text)];
+  strcpy(text, t.text);
+  return *this;
+}
+boolean TWindow::operator==(TWindow& t)
+{
+  return strcmp(t.text, text)==0;
+}
+boolean TWindow::operator<(TWindow& t)
+{
+  return strcmp(text, t.text)<0;
+}
+boolean TWindow::operator>(TWindow& t)
+{
+  return strcmp(text, t.text)>0;
+}
+ostream& operator<<(ostream& o, TWindow& t)
+{
+  t.display();
+  return o;
+}
+istream& operator>>(istream&i, TWindow& t)
+{
+  t.editText();
+  return i;
+}
+