kolibrios-fun/programs/cmm/quark/selection.h
Kirill Lipatov (Leency) 64a81df7e7 WebView: refactoring
git-svn-id: svn://kolibrios.org@8439 a494cfbc-eb01-0410-851d-a64ba20cac60
2020-12-17 23:01:09 +00:00

103 lines
2.5 KiB
C

struct SELECTION {
dword start_x, start_y, start_offset;
dword end_x, end_y, end_offset;
dword color;
bool is_active();
void set_start();
void set_end();
void draw();
void draw_line();
void cancel();
bool swap_start_end();
void normalize();
void select_all();
void debug();
} selection;
bool SELECTION::is_active()
{
if (start_offset) && (end_offset) && (start_offset != end_offset) {
return true;
} else {
return false;
}
}
void SELECTION::draw_line(dword x,y,w)
{
canvas.DrawBar(x, y - list.first * list.item_h, w, list.item_h, color);
}
void SELECTION::draw(int i)
{
if (is_active()) {
if (start_y == i) && (end_y == i) draw_line(start_x * list.font_w+2, start_y, end_x - start_x * list.font_w);
else if (start_y == i) draw_line(start_x * list.font_w+2, start_y, list.w -2- calc(start_x * list.font_w));
else if (end_y == i) draw_line(0, end_y, end_x * list.font_w+2);
//only for debug:
//canvas.DrawBar(start_x * list.font_w + 2, start_y * list.item_h, 2, list.item_h, 0x00FF00);
//canvas.DrawBar(end_x * list.font_w + 0, end_y * list.item_h, 2, list.item_h, 0xFF00FF);
}
//DrawCursor
if (list.cur_y >= list.first) && (list.cur_y <= list.first+list.visible) {
canvas.DrawBar(list.cur_x * list.font_w + 2, list.cur_y - list.first * list.item_h, 2, list.item_h, theme.cursor);
}
}
void SELECTION::cancel()
{
start_offset = end_offset = lines.get(list.cur_y) + list.cur_x;
start_x = end_x = list.cur_x;
start_y = end_y = list.cur_y;
normalize();
}
void SELECTION::set_start()
{
if (selection.is_active()) return;
start_x = list.cur_x;
start_y = list.cur_y;
normalize();
start_offset = lines.get(start_y) + start_x;
}
:void SELECTION::debug()
{
char rez[256];
sprintf(#rez, "start_x: %d start_y: %d end_x: %d end_y: %d", start_x, start_y, end_x, end_y);
debugln(#rez);
}
void SELECTION::set_end()
{
end_x = list.cur_x;
end_y = list.cur_y;
normalize();
end_offset = lines.get(end_y) + end_x;
}
void SELECTION::normalize()
{
start_x = math.min(start_x, lines.get(start_y+1) - lines.get(start_y));
end_x = math.min(end_x, lines.get(end_y+1) - lines.get(end_y));
}
void SELECTION::select_all()
{
start_y = 0;
start_x = 0;
end_y = lines.count-2;
end_x = lines.get(end_y+1) - lines.get(end_y);
start_offset = lines.get(start_y) + start_x;
end_offset = lines.get(end_y) + end_x;
}
bool SELECTION::swap_start_end()
{
start_offset >< end_offset;
start_x >< end_x;
start_y >< end_y;
return true;
}