Tor Lillqvist authored
2003-07-25 Tor Lillqvist <email@example.com> * gdk/win32/gdkprivate-win32.h * gdk/win32/gdkglobals-win32.c: New flags _gdk_input_locale_is_ime and _gdk_keyboard_has_altgr. * gdk/win32/gdkevents-win32.c: Lots of changes. Most important ones detailled here. Code that has been ifdeffed out for a long time removed. Remove some really old doc comments that were left behind for some public functions, the official ones are in the X11 backend anyway. Change GDK_WINDOW_OBJECT() calls to GdkWindowObject casts. Reformat multi-line boolean expressions to have the operators at ends of lines. As mouse capture with SetCapture() indeed seems to work OK, no need to have the correspoinding macro USE_SETCAPTURE and ifdefs. Ifdef out the gdk-ping-msg stuff. I don't remember why it was needed at some time, and things seem to work fine now without (knock on wood). Ifdef out the search for some Latin locale keyboard layout being loaded. Not used currently, but might be needed after all, if we decide that we want to be able to generate ASCII control character events with a non-Latin keyboard. (assign_object): New helper function, handles the g_object_ref() and unref() calls when assigning GObject pointers. (generate_crossing_events): Also generate the GDK_NOTIFY_INTERIOR enter event when the pointer has moved to an ancestor window. Was left out by mistake. (gdk_window_is_ancestor): Renamed from gdk_window_is_child(). (gdk_pointer_grab, gdk_pointer_ungrab): Implement the confine_to functionality, using ClipCursor(). (find_window_for_mouse_event): Splice part of code into new function find_real_window_for_grabbed_mouse_event(). (fixup_event, append_event, apply_filters): New functions, code refactored out from elsewhere. (synthesize_enter_or_leave_event, synthesize_leave_event, synthesize_enter_event, synthesize_leave_events,synthesize_enter_events): Also take a GdkCrossingMode parameter, in preparation to generating GDK_CROSSING_GRAB and GDK_CROSSING_UNGRAB events. (fixup_event, append_event, fill_key_event_string): New functions, code refactoring. (vk_from_char, build_keypress_event, build_keyrelease_event): Removed as part of dropping WM_CHAR handling. (build_key_event_state,gdk_event_translate): Call GetKeyboardState(), once, for each keyboard message, instead of several calls to GetKeyState() here and there. (gdk_event_translate): Fix bugs #104516, #104662, #115902. While at it, do some major refactoring, and some fixes for potential problems noticed while going through the code. Don't handle WM_CHAR at all. Only handle WM_KEYDOWN and WM_KEYUP. Don't need the state variables related to whether to wait for WM_CHAR or not, and whether the current key is AltGr. Remove lots of complexity. Thus don't need the use_ime_composition flag. Not handling WM_CHAR means dead key handling will have to be taken care of by GTK, but that seems to work fine, so no worry. Another side-effect is that Alt+keypad digits don't work any longer, but it's better to learn to use GTK's ISO14755 support is anyway. Be more careful in checking whether AltGr is involved. Only attempt to handle it if the keyboard actually has it. And explicitly check for *left* Control plus *right* Alt being pressed. Still, allow (left) Alt and/or (right) Control with AltGr chars. Handle keys using similar code as in the X11 backend. As we have built a keymap in gdkkeys-win32.c anyway, use it by calling gdk_keymap_translate_keyboard_state() to look up the keysym from the virtual key code and keyboard state. Build the key event string in exactly the same way as the X11 backend. If an IME is being used, don't generate GDK events for keys between receiving WM_IME_STARTCOMPOSITION and WM_IME_ENDCOMPOSITION, as those keys are for the IME. For WM_IME_COMPOSITION, handle all the Unicode chars returned from the IME, not just the first one. gdk_event_translate() is still quite complex, could split the message handler cases out into separate functions. On mouse events, when the mouse is grabbed, use find_real_window_for_grabbed_mouse_event() in order to be able to generate correct crossing events. No longer take a pre-allocated GdkEvent as parameter. Instead, allocate events as needed and append them to the queue. (This is different from how gdk_event_translate() in the X11 backend works.) This change made the code much clearer, especially in the cases where we have to generate several GDK events for one Windows message. Return FALSE if DefWindowProc() should be called, TRUE if not. If DefWindowProc() should not be called, also return the value to be returned from the window procedure. (Previously, the interaction with gdk_event_translate()'s caller was much more complex, when we had to indicate whether the already-queued event should be left in the queue or removed, and in addition also had to indicate whether to call DefWindowProc() or not, and what value to return from the window procedure if not.) Don't use a separate "private" variable required to be pointing to the GdkWindowObject of the "window" variable at all times. Just use casts, even if looks a bit uglier. Notice destroyed windows as early as possible, and break out of the messsage switch. Use _gdk_pointer_root as current_window when the pointer is outside GDK's top-level windows. On WM_INPUTLANGCHANGE, set _gdk_input_locale_is_ime as appropriate, based on ImmIsIME(). (gdk_event_translate, gdk_event_send_client_message_for_display, gdk_screen_broadcast_client_message): Implement client messages. Use a registered Windows message to pass GDK client messages. Note that the amount of user data is restricted to four bytes, as it is carried in the LPARAM. (The WPARAM is used for the message type "atom".) (real_window_procedure): Adapt for new gdk_event_translate() interface. * gdk/win32/gdkmain-win32.c (_gdk_windowing_init): Set _gdk_input_locale_is_ime initially. * gdk/win32/gdkwindow-win32.c: Use g_object_ref()/unref() instead of g_colormap_ref()/unref(). (gdk_window_new): Made code a bit more like the X11 one, pretend to handle screens (although we just have one for now). * gdk/x11/gdkevents-x11.c (gdk_event_send_client_message_for_display, gdk_screen_broadcast_client_message): Document the user data limitation on Win32. * gdk/win32/gdkevents-win32.c (print_event): More complete enter and leave notify detail output. * gdk/win32/gdkkeys-win32.c (update_keymap): Make dead keys visible to GDK and GTK. Store the corresponding GDK_dead_* keysym for those, so that the GtkIMContextCimple compose tables will work. Deduce if the keyboard layout has the AltGr key, and set the above flag accordingly.63f74573
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