kolibrios-gitea/programs/cmm/lib/list_box.h
Kirill Lipatov (Leency) 3e7a7a7eb9 list_box.h: make list PgUp and PgDown selection behavior more usual
git-svn-id: svn://kolibrios.org@5958 a494cfbc-eb01-0410-851d-a64ba20cac60
2015-12-13 11:05:14 +00:00

292 lines
5.4 KiB
C

//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, item_h, item_w;
int count, visible, first, column_max; //visible = row_max
int cur_x, cur_y;
int text_y;
byte font_w, font_h, font_type;
byte wheel_size;
byte active;
byte no_selection;
byte horisontal_selelection;
void ClearList();
void SetSizes(int xx, yy, ww, hh, item_hh);
void SetFont(dword font_ww, font_hh, font_tt);
int ProcessKey(dword key);
int ProcessMouse(int xx, yy);
int MouseOver(int xx, yy);
int MouseScroll(dword scroll_state);
int KeyDown();
int KeyUp();
int KeyHome();
int KeyEnd();
int KeyPgDown();
int KeyPgUp();
int KeyLeft();
int KeyRight();
void CheckDoesValuesOkey();
void debug_values();
};
void llist::debug_values()
{
char yi[128];
sprintf(#yi, "%s %d %s %d %s %d %s %d %s %d %s %d", "first:", first, "visible:", visible, "count:", count, "col_max:", column_max, "cur_y:", cur_y, "cur_x:", cur_x);
debugln(#yi);
}
void llist::ClearList()
{
count = visible = first = cur_y = cur_x = 0;
}
void llist::SetSizes(int xx, yy, ww, hh, item_hh)
{
x = xx;
y = yy;
w = ww;
h = hh;
item_h = item_hh;
text_y = item_h - font_h / 2;
visible = h / item_h;
wheel_size = 3;
CheckDoesValuesOkey();
}
void llist::SetFont(dword font_ww, font_hh, font_tt)
{
font_w = font_ww;
font_h = font_hh;
font_type = font_tt;
}
int llist::MouseScroll(dword scroll_state)
{
if (count<=visible) return 0;
if (scroll_state == 65535)
{
if (first == 0) return 0;
if (first > wheel_size+1) first -= wheel_size; else first=0;
return 1;
}
if (scroll_state == 1)
{
if (visible + first == count) return 0;
if (visible+first+wheel_size+1 > count) first = count - visible; else first+=wheel_size;
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 cur_y_temp, cur_x_temp, ret=0;
if (MouseOver(xx, yy))
{
cur_y_temp = yy - y / item_h + first;
if (cur_y_temp != cur_y) && (cur_y_temp<count)
{
cur_y = cur_y_temp;
ret = 1;
}
if (horisontal_selelection)
{
cur_x_temp = xx - x / item_w;
if (cur_x_temp != cur_x) && (cur_x_temp<column_max)
{
cur_x = cur_x_temp;
ret = 1;
}
}
}
return ret;
}
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();
}
if (horisontal_selelection) switch(key)
{
case SCAN_CODE_LEFT: return KeyLeft();
case SCAN_CODE_RIGHT: return KeyRight();
}
return 0;
}
int llist::KeyDown()
{
if (no_selection)
{
if (visible + first >= count) return 0;
first++;
return 1;
}
if (cur_y-first+1<visible)
{
if (cur_y + 1 >= count) return 0;
cur_y++;
}
else
{
if (visible + first >= count) return 0;
first++;
cur_y++;
}
if (cur_y < first) || (cur_y > first + visible)
{
first = cur_y;
CheckDoesValuesOkey();
}
return 1;
}
int llist::KeyUp()
{
if (no_selection)
{
if (first == 0) return 0;
first--;
return 1;
}
if (cur_y > first)
{
cur_y--;
}
else
{
if (first == 0) return 0;
first--;
cur_y--;
}
if (cur_y < first) || (cur_y > first + visible)
{
first = cur_y;
CheckDoesValuesOkey();
}
return 1;
}
int llist::KeyHome()
{
if (cur_y==0) && (first==0) return 0;
cur_y = first = 0;
return 1;
}
int llist::KeyEnd()
{
if (cur_y==count-1) && (first==count-visible) return 0;
cur_y = count-1;
first = count - visible;
return 1;
}
int llist::KeyPgUp()
{
if (count <= visible) return KeyHome();
if (first == 0) return 0;
first -= visible;
cur_y = first;
CheckDoesValuesOkey();
return 1;
}
int llist::KeyPgDown()
{
if (count <= visible) return KeyEnd();
if (first == count - visible) return 0;
first += visible;
cur_y = first + visible - 1;
CheckDoesValuesOkey();
return 1;
}
void llist::CheckDoesValuesOkey()
{
if (visible + first > count) first = count - visible;
if (first < 0) first = 0;
if (cur_y >= count) cur_y = count - 1;
if (cur_y < 0) cur_y = 0;
if (cur_x < 0) cur_x = 0;
}
int llist::KeyRight()
{
if (cur_x < column_max)
{
cur_x++;
}
else
{
if (!KeyDown()) return 0;
cur_x = 0;
}
return 1;
}
int llist::KeyLeft()
{
if (cur_x > 0)
{
cur_x--;
}
else
{
if (!KeyUp()) return 0;
cur_x = column_max;
}
return 1;
}
void llist_copy(dword dest, src)
{
EDI = dest;
ESI = src;
EDI.llist.x = ESI.llist.x;
EDI.llist.y = ESI.llist.y;
EDI.llist.w = ESI.llist.w;
EDI.llist.h = ESI.llist.h;
EDI.llist.item_h = ESI.llist.item_h;
EDI.llist.text_y = ESI.llist.text_y;
EDI.llist.font_w = ESI.llist.font_w;
EDI.llist.font_h = ESI.llist.font_h;
EDI.llist.font_type = ESI.llist.font_type;
EDI.llist.count = ESI.llist.count;
EDI.llist.visible = ESI.llist.visible;
EDI.llist.first = ESI.llist.first;
EDI.llist.cur_y = ESI.llist.cur_y;
EDI.llist.column_max = ESI.llist.column_max;
EDI.llist.active = ESI.llist.active;
}
#endif