/**
* Moves the window so #newtop is new 'top' coordinate. Makes screen dirty where needed.
* @param newtop new top coordinate
*/
void SetWindowTop(int newtop)
{
if (this->top == newtop) return;
int mintop = min(newtop, this->top);
int maxtop = max(newtop, this->top);
if (this->viewport != NULL) this->viewport->top += newtop - this->top;
this->top = newtop;
SetDirtyBlocks(this->left, mintop, this->left + this->width, maxtop + this->height);
}
virtual void OnTick()
{
/* Scroll up newsmessages from the bottom in steps of 4 pixels */
int y = max(this->top - 4, _screen.height - this->height - this->status_height - this->chat_height);
if (y == this->top) return;
if (this->viewport != NULL) this->viewport->top += y - this->top;
int diff = Delta(this->top, y);
this->top = y;
SetDirtyBlocks(this->left, this->top, this->left + this->width, this->top + this->height + diff);
}
/**
* Show build confirmation window under the mouse cursor
*/
void ShowBuildConfirmationWindow()
{
HideBuildConfirmationWindow();
if (!_settings_client.gui.build_confirmation || _shift_pressed) {
ConfirmPlacingObject();
ToolbarSelectLastTool();
return;
}
BuildConfirmationWindow *w = new BuildConfirmationWindow(&_build_confirmation_desc);
int old_left = w->left;
int old_top = w->top;
w->left = _cursor.pos.x - w->width / 2;
w->top = _cursor.pos.y - w->height / 4;
w->viewport->left += w->left - old_left;
w->viewport->top += w->top - old_top;
w->SetDirty();
SetDirtyBlocks(0, 0, _screen.width, _screen.height); // I don't know what does this do, but it looks important
}