//list_box
#ifndef INCLUDE_LIST_BOX_H
#define INCLUDE_LIST_BOX_H
#print "[include <list_box.h>]\n"
#ifndef INCLUDE_KOLIBRI_H
#include "../lib/kolibri.h"
#endif
struct llist
{
int x, y, w, h, line_h, char_w, char_h, text_y;
int count, visible, first, current, column_max; //visible = row_max
int active;
void ClearList();
int MouseOver(int xx, yy);
int ProcessMouse(int xx, yy);
int ProcessKey(dword key);
int KeyDown();
int KeyUp();
int KeyHome();
int KeyEnd();
int KeyPgDown();
int KeyPgUp();
void CheckDoesValuesOkey();
void SetSizes(int xx, yy, ww, hh, min_hh, line_hh);
int MouseScroll(dword scroll_state);
int MouseScrollNoSelection(dword scroll_state);
void debug_values();
};
void llist::debug_values()
{
char yi[128];
sprintf(#yi, "%s %d %s %d %s %d %s %d", "current:", current, "first:", first,
"visible:", visible, "count:", count);
debugln(#yi);
}
void llist::ClearList()
{
count = visible = first = current = 0;
}
void llist::SetSizes(int xx, yy, ww, hh, line_hh)
{
x = xx;
y = yy;
w = ww;
h = hh;
line_h = line_hh;
text_y = line_h / 2 - 4;
visible = h / line_h;
//if (visible > count) visible=count;
}
int llist::MouseScroll(dword scroll_state)
{
if (count<=visible) return 0;
if (scroll_state == 65535)
{
if (first == 0) return 0;
if (first > 3) first -= 2; else first=0;
return 1;
}
if (scroll_state == 1)
{
if (visible + first == count) return 0;
if (visible+first+3 > count) first = count - visible; else first+=2;
return 1;
}
return 0;
}
int llist::MouseScrollNoSelection(dword scroll_state)
{
if (count<=visible) return 0;
if (scroll_state == 65535)
{
if (current == 0) return 0;
if (current > 3) current -= 2; else current=0;
return 1;
}
if (scroll_state == 1)
{
if (visible + current == count) return 0;
if (visible+current+3 > count) current = count - visible; else current+=2;
return 1;
}
return 0;
}
int llist::MouseOver(int xx, yy)
{
if (xx>x) && (xx<x+w) && (yy>y) && (yy<y+h) return 1;
return 0;
}
int llist::ProcessMouse(int xx, yy)
{
int current_temp;
if (MouseOver(xx, yy))
{
current_temp = yy - y / line_h + first;
if (current_temp != current) && (current_temp<count)
{
current = current_temp;
return 1;
}
}
return 0;
}
int llist::ProcessKey(dword key)
{
switch(key)
{
case SCAN_CODE_DOWN: return KeyDown();
case SCAN_CODE_UP: return KeyUp();
case SCAN_CODE_HOME: return KeyHome();
case SCAN_CODE_END: return KeyEnd();
case SCAN_CODE_PGUP: return KeyPgUp();
case SCAN_CODE_PGDN: return KeyPgDown();
}
return 0;
}
int llist::KeyDown()
{
if (current-first+1<visible)
{
if (current + 1 >= count) return 0;
current++;
}
else
{
if (visible + first >= count) return 0;
first++;
current++;
}
if (current < first) || (current > first + visible)
{
first = current;
CheckDoesValuesOkey();
}
return 1;
}
int llist::KeyUp()
{
if (current > first)
{
current--;
}
else
{
if (first == 0) return 0;
first--;
current--;
}
if (current < first) || (current > first + visible)
{
first = current;
CheckDoesValuesOkey();
}
return 1;
}
int llist::KeyHome()
{
if (current==0) && (first==0) return 0;
current = first = 0;
return 1;
}
int llist::KeyEnd()
{
if (current==count-1) && (first==count-visible) return 0;
current = count-1;
first = count - visible;
return 1;
}
int llist::KeyPgUp()
{
if (count <= visible) return KeyHome();
if (first == 0) return 0;
first -= visible;
CheckDoesValuesOkey();
return 1;
}
int llist::KeyPgDown()
{
if (count <= visible) return KeyEnd();
if (first == count - visible) return 0;
first += visible;
CheckDoesValuesOkey();
return 1;
}
void llist::CheckDoesValuesOkey()
{
if (first < 0) first = 0;
if (visible + first > count) first = count - visible;
if (current >= count) current = count - 1;
if (current < 0) current = 0;
}
#endif