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conhost: Import scrolling support from wineconsole. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2020-10-12 18:26:34 +02:00 committed by Alexandre Julliard
parent a3583f0505
commit 1333aebe0b
1 changed files with 66 additions and 0 deletions
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66
programs/conhost/window.c
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@ -2310,6 +2310,72 @@ static LRESULT WINAPI window_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lp
max( HIWORD(lparam) / console->active->font.height, 20 ));
break;
case WM_HSCROLL:
{
int win_width = console->active->win.right - console->active->win.left + 1;
int x = console->active->win.left;
switch (LOWORD(wparam))
{
case SB_PAGEUP: x -= 8; break;
case SB_PAGEDOWN: x += 8; break;
case SB_LINEUP: x--; break;
case SB_LINEDOWN: x++; break;
case SB_THUMBTRACK: x = HIWORD(wparam); break;
default: break;
}
x = min( max( x, 0 ), console->active->width - win_width );
if (x != console->active->win.left)
{
console->active->win.left = x;
console->active->win.right = x + win_width - 1;
update_window( console );
}
break;
}
case WM_MOUSEWHEEL:
if (console->active->height <= console->active->win.bottom - console->active->win.top + 1)
{
record_mouse_input(console, get_cell(console, lparam), wparam, MOUSE_WHEELED);
break;
}
/* else fallthrough */
case WM_VSCROLL:
{
int win_height = console->active->win.bottom - console->active->win.top + 1;
int y = console->active->win.top;
if (msg == WM_MOUSEWHEEL)
{
UINT scroll_lines = 3;
SystemParametersInfoW( SPI_GETWHEELSCROLLLINES, 0, &scroll_lines, 0 );
scroll_lines *= -GET_WHEEL_DELTA_WPARAM(wparam) / WHEEL_DELTA;
y += scroll_lines;
}
else
{
switch (LOWORD(wparam))
{
case SB_PAGEUP: y -= 8; break;
case SB_PAGEDOWN: y += 8; break;
case SB_LINEUP: y--; break;
case SB_LINEDOWN: y++; break;
case SB_THUMBTRACK: y = HIWORD(wparam); break;
default: break;
}
}
y = min( max( y, 0 ), console->active->height - win_height );
if (y != console->active->win.top)
{
console->active->win.top = y;
console->active->win.bottom = y + win_height - 1;
update_window( console );
}
break;
}
case WM_SYSCOMMAND:
switch (wparam)
{