static gboolean zbar_gtk_expose (GtkWidget *widget,
GdkEventExpose *event)
{
ZBarGtk *self = ZBAR_GTK(widget);
if(!self->_private)
return(FALSE);
ZBarGtkPrivate *zbar = ZBAR_GTK_PRIVATE(self->_private);
if(GTK_WIDGET_VISIBLE(widget) &&
GTK_WIDGET_MAPPED(widget) &&
zbar_window_redraw(zbar->window))
return(TRUE);
return(FALSE);
}
static LRESULT CALLBACK win_handle_event (HWND hwnd,
UINT message,
WPARAM wparam,
LPARAM lparam)
{
zbar_processor_t *proc =
(zbar_processor_t*)GetWindowLongPtr(hwnd, GWL_USERDATA);
/* initialized during window creation */
if(message == WM_NCCREATE) {
proc = ((LPCREATESTRUCT)lparam)->lpCreateParams;
assert(proc);
SetWindowLongPtr(hwnd, GWL_USERDATA, (LONG_PTR)proc);
proc->display = hwnd;
zbar_window_attach(proc->window, proc->display, proc->xwin);
}
else if(!proc)
return(DefWindowProc(hwnd, message, wparam, lparam));
switch(message) {
case WM_SIZE: {
RECT r;
GetClientRect(hwnd, &r);
zprintf(3, "WM_SIZE %ldx%ld\n", r.right, r.bottom);
assert(proc);
zbar_window_resize(proc->window, r.right, r.bottom);
InvalidateRect(hwnd, NULL, 0);
return(0);
}
case WM_PAINT: {
PAINTSTRUCT ps;
BeginPaint(hwnd, &ps);
if(zbar_window_redraw(proc->window)) {
HDC hdc = GetDC(hwnd);
RECT r;
GetClientRect(hwnd, &r);
FillRect(hdc, &r, GetStockObject(BLACK_BRUSH));
ReleaseDC(hwnd, hdc);
}
EndPaint(hwnd, &ps);
return(0);
}
case WM_CHAR: {
_zbar_processor_handle_input(proc, wparam);
return(0);
}
case WM_LBUTTONDOWN: {
_zbar_processor_handle_input(proc, 1);
return(0);
}
case WM_MBUTTONDOWN: {
_zbar_processor_handle_input(proc, 2);
return(0);
}
case WM_RBUTTONDOWN: {
_zbar_processor_handle_input(proc, 3);
return(0);
}
case WM_CLOSE: {
zprintf(3, "WM_CLOSE\n");
_zbar_processor_handle_input(proc, -1);
return(1);
}
case WM_DESTROY: {
zprintf(3, "WM_DESTROY\n");
proc->display = NULL;
zbar_window_attach(proc->window, NULL, 0);
return(0);
}
}
return(DefWindowProc(hwnd, message, wparam, lparam));
}
