/* The emacs frame widget. Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc. Copyright (C) 1993-1995 Sun Microsystems, Inc. Copyright (C) 1995, 2010 Ben Wing. This file is part of XEmacs. XEmacs is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. XEmacs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with XEmacs. If not, see . */ /* Synched up with: Not in FSF. */ /* #### Note to potential hackers: Don't mess with this unless you're sure you know what you're doing! Xt is a lot more subtle than you may think. */ #include #include "lisp.h" #include "device-impl.h" #include "faces.h" #include "frame-impl.h" #include "toolbar.h" #include "window.h" #include "console-x-impl.h" #include "glyphs-x.h" #include "fontcolor-x.h" #include #include #include "EmacsFrameP.h" #include "EmacsManager.h" /* for EmacsManagerChangeSize */ #include "../lwlib/xt-wrappers.h" static void EmacsFrameClassInitialize (void); static void EmacsFrameInitialize (Widget, Widget, ArgList, Cardinal *); static void EmacsFrameRealize (Widget, XtValueMask*, XSetWindowAttributes*); static void EmacsFrameResize (Widget widget); static Boolean EmacsFrameSetValues (Widget, Widget, Widget, ArgList, Cardinal *); static XtGeometryResult EmacsFrameQueryGeometry (Widget, XtWidgetGeometry*, XtWidgetGeometry*); extern void emacs_Xt_mapping_action (Widget w, XEvent* event); #undef XtOffset #define XtOffset(p_type,field) \ ((Cardinal) (((char *) (&(((p_type)0)->field))) - ((char *)0))) #define offset(field) XtOffset (EmacsFrame, emacs_frame.field) #define res(name,_class,intrepr,type,member,extrepr,value) \ Xt_RESOURCE (name, _class, intrepr, type, offset(member), extrepr, value) static XtResource resources[] = { res (XtNgeometry, XtCGeometry, XtRString, String, geometry, XtRString, 0), res (XtNiconic, XtCIconic, XtRBoolean, Boolean, iconic, XtRImmediate, False), res (XtNemacsFrame, XtCEmacsFrame, XtRPointer, XtPointer, frame, XtRImmediate, 0), res (XtNmenubar, XtCMenubar, XtRBoolean, Boolean, menubar_p, XtRImmediate, True), res (XtNinitiallyUnmapped, XtCInitiallyUnmapped, XtRBoolean, Boolean, initially_unmapped, XtRImmediate, False), res (XtNminibuffer, XtCMinibuffer, XtRBoolean, Boolean, minibuffer, XtRImmediate, True), res (XtNunsplittable, XtCUnsplittable, XtRBoolean, Boolean, unsplittable, XtRImmediate, False), res (XtNinternalBorderWidth, XtCInternalBorderWidth, XtRInt, int, internal_border_width, XtRImmediate, 4), #ifdef HAVE_SCROLLBARS res (XtNscrollBarWidth, XtCScrollBarWidth, XtRInt, int, scrollbar_width, XtRImmediate, -1), res (XtNscrollBarHeight, XtCScrollBarHeight, XtRInt, int, scrollbar_height, XtRImmediate, -1), res (XtNscrollBarPlacement, XtCScrollBarPlacement, XtRScrollBarPlacement, unsigned char, scrollbar_placement, XtRImmediate, #if defined (LWLIB_SCROLLBARS_MOTIF) || defined (LWLIB_SCROLLBARS_LUCID) || \ defined (LWLIB_SCROLLBARS_ATHENA3D) XtBOTTOM_RIGHT #else XtBOTTOM_LEFT #endif ), #endif /* HAVE_SCROLLBARS */ #ifdef HAVE_TOOLBARS res (XtNtopToolBarHeight, XtCTopToolBarHeight, XtRInt, int, top_toolbar_height, XtRImmediate, -1), res (XtNbottomToolBarHeight, XtCBottomToolBarHeight, XtRInt, int, bottom_toolbar_height, XtRImmediate, -1), res (XtNleftToolBarWidth, XtCLeftToolBarWidth, XtRInt, int, left_toolbar_width, XtRImmediate, -1), res (XtNrightToolBarWidth, XtCRightToolBarWidth, XtRInt, int, right_toolbar_width, XtRImmediate, -1), res (XtNtopToolBarBorderWidth, XtCTopToolBarBorderWidth, XtRInt, int, top_toolbar_border_width, XtRImmediate, -1), res (XtNbottomToolBarBorderWidth, XtCBottomToolBarBorderWidth, XtRInt, int, bottom_toolbar_border_width, XtRImmediate, -1), res (XtNleftToolBarBorderWidth, XtCLeftToolBarBorderWidth, XtRInt, int, left_toolbar_border_width, XtRImmediate, -1), res (XtNrightToolBarBorderWidth, XtCRightToolBarBorderWidth, XtRInt, int, right_toolbar_border_width, XtRImmediate, -1), res (XtNtoolBarShadowThickness, XtCToolBarShadowThickness, XtRDimension, Dimension, toolbar_shadow_thickness, XtRImmediate, 2), #endif /* HAVE_TOOLBARS */ res (XtNinterline, XtCInterline, XtRInt, int, interline, XtRImmediate, 0), res (XtNfont, XtCFont, XtRFontStruct, XFontStruct *, font, XtRImmediate, 0), res (XtNforeground, XtCForeground, XtRPixel, Pixel, foreground_pixel, XtRString, "Black"), res (XtNbackground, XtCBackground, XtRPixel, Pixel, background_pixel, XtRString, "Gray80"), res (XtNcursorColor, XtCForeground, XtRPixel, Pixel, cursor_color, XtRString, "XtDefaultForeground"), res (XtNbarCursor, XtCBarCursor, XtRBoolean, Boolean, bar_cursor, XtRImmediate, 0), res (XtNvisualBell, XtCVisualBell, XtRBoolean, Boolean, visual_bell, XtRImmediate, 0), res (XtNbellVolume, XtCBellVolume, XtRInt, int, bell_volume, XtRImmediate, 0), res (XtNuseBackingStore, XtCUseBackingStore, XtRBoolean, Boolean, use_backing_store, XtRImmediate, 0), res (XtNpreferredWidth, XtCPreferredWidth, XtRDimension, Dimension, preferred_width, XtRImmediate, 0), res (XtNpreferredHeight, XtCPreferredHeight, XtRDimension, Dimension, preferred_height, XtRImmediate, 0), }; #undef offset /* Xt is stupid and dumb. Xt is stupid and dumb. Xt is stupid and dumb. */ static XtActionsRec emacsFrameActionsTable [] = { { (String) "mapping", (XtActionProc) emacs_Xt_mapping_action}, }; static char emacsFrameTranslations [] = "\ : mapping()\n\ "; /* If we're running under Motif, make this widget a subclass of XmPrimitive. It's not clear this is necessary, but it may make focus behavior work better. */ EmacsFrameClassRec emacsFrameClassRec = { { /* core fields */ #ifdef LWLIB_USES_MOTIF /* superclass */ (WidgetClass) &xmPrimitiveClassRec, #else /* superclass */ &widgetClassRec, #endif /* class_name */ (String) "EmacsFrame", /* widget_size */ sizeof (EmacsFrameRec), /* class_initialize */ EmacsFrameClassInitialize, /* class_part_initialize */ 0, /* class_inited */ FALSE, /* initialize */ EmacsFrameInitialize, /* initialize_hook */ 0, /* realize */ EmacsFrameRealize, /* actions */ emacsFrameActionsTable, /* num_actions */ XtNumber (emacsFrameActionsTable), /* resources */ resources, /* resource_count */ XtNumber (resources), /* xrm_class */ NULLQUARK, /* compress_motion */ TRUE, /* compress_exposure */ TRUE, /* compress_enterleave */ TRUE, /* visible_interest */ FALSE, /* destroy */ NULL, /* resize */ EmacsFrameResize, /* expose */ XtInheritExpose, /* set_values */ EmacsFrameSetValues, /* set_values_hook */ 0, /* set_values_almost */ XtInheritSetValuesAlmost, /* get_values_hook */ 0, /* accept_focus */ XtInheritAcceptFocus, /* version */ XtVersion, /* callback_private */ 0, /* tm_table */ emacsFrameTranslations, /* query_geometry */ EmacsFrameQueryGeometry, /* display_accelerator */ XtInheritDisplayAccelerator, /* extension */ 0 }, #ifdef LWLIB_USES_MOTIF { /* XmPrimitiveClassPart */ (XtWidgetProc) _XtInherit, /* border_highlight */ (XtWidgetProc) _XtInherit, /* border_unhighlight */ /* Setting the following to NULL causes PrimitiveInitialize() not to add traversal (TAB etc. to switch focus) and focus-in/out (border highlight/unhighlight) translations. If you want those translations, use the value XtInheritTranslations instead. Doing this, however, will interfere with Emacs focus handling (which highlights/unhighlights the text cursor), and will lead to strange display results around the border of the widget. */ NULL, /* translations */ NULL, /* arm_and_activate */ NULL, /* get resources */ 0, /* num get_resources */ NULL, /* extension */ }, #endif /* LWLIB_USES_MOTIF */ { 0 } }; WidgetClass emacsFrameClass = (WidgetClass) &emacsFrameClassRec; static void update_various_frame_slots (EmacsFrame ew) { ew->emacs_frame.frame->pixheight = ew->core.height; ew->emacs_frame.frame->pixwidth = ew->core.width; } static void EmacsFrameInitialize (Widget UNUSED (request), Widget new_, ArgList UNUSED (unused1), Cardinal *UNUSED (unused2)) { EmacsFrame ew = (EmacsFrame)new_; struct frame *f = ew->emacs_frame.frame; if (!f) fatal ("can't create an emacs frame widget without a frame."); ew->emacs_frame.frame->internal_border_width = ew->emacs_frame.internal_border_width; } void emacs_Xt_event_handler (Widget wid /* unused */, XtPointer closure /* unused */, XEvent *event, Boolean *continue_to_dispatch /* unused */); static void EmacsFrameRealize (Widget widget, XtValueMask *mask, XSetWindowAttributes *attrs) { EmacsFrame ew = (EmacsFrame) widget; struct frame *f = ew->emacs_frame.frame; Widget shell_widget = FRAME_X_SHELL_WIDGET (f); attrs->event_mask = ExposureMask | VisibilityChangeMask | PropertyChangeMask | StructureNotifyMask | SubstructureNotifyMask | /*SubstructureRedirectMask |*/ /* Only for WMs! */ KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | FocusChangeMask | PointerMotionHintMask | PointerMotionMask | LeaveWindowMask | EnterWindowMask; *mask |= CWEventMask; if (ew->emacs_frame.use_backing_store) { attrs->backing_store = Always; *mask |= CWBackingStore; } XtCreateWindow (widget, InputOutput, (Visual *)CopyFromParent, *mask, attrs); /* snarf the events we want. */ XtInsertEventHandler (widget, attrs->event_mask, TRUE, emacs_Xt_event_handler, NULL, XtListHead); /* some events (e.g. map-notify and WM_DELETE_WINDOW) get sent directly to the shell, and the above event handler won't see them. So add a handler to get them. These events don't propagate, so there's no danger of them being seen twice. */ XtInsertEventHandler (shell_widget, EnterWindowMask | LeaveWindowMask | VisibilityChangeMask | StructureNotifyMask | KeyPressMask, TRUE, emacs_Xt_event_handler, NULL, XtListHead); #ifdef EXTERNAL_WIDGET /* #### Not sure if this special case is necessary */ if (!FRAME_X_EXTERNAL_WINDOW_P (f)) #endif /* This is necessary under Motif in order to make it possible to click in a buffer and move focus out of a dialog box or control panel and back into emacs-land; also necessary so that you can still type chars if the cursor is over the menubar or scrollbar. */ lw_set_keyboard_focus (shell_widget, FRAME_X_TEXT_WIDGET (f)); } /* DO NOT CALL THIS FUNCTION! Only Xt is supposed to do this. */ static void EmacsFrameResize (Widget widget) { EmacsFrame ew = (EmacsFrame)widget; struct frame *f = ew->emacs_frame.frame; int columns; int rows; XtWidgetGeometry req, repl; update_various_frame_slots (ew); pixel_to_frame_unit_size (f, ew->core.width, ew->core.height, &columns, &rows); change_frame_size (f, columns, rows, 0); /* The code below is just plain wrong. If the EmacsShell or EmacsManager needs to know, they should just ask. If needed information is being updated here, then we should set a dirty flag and have it updated on an as-needed basis. For now, conditionalize so people can get work done if this breaks something. */ if (wedge_metacity) /* cf. x_set_frame_size */ { /* Now we tell the EmacsShell that we've changed the size of the non-fixed portion of the frame. Note that, if the resize occurred as a result of EmacsFrameSetCharSize(), this information will be stored twice. This is not a big deal, as storing this information doesn't actually do anything until the next resize. */ if (FRAME_X_TOP_LEVEL_FRAME_P (f)) x_wm_set_variable_size (FRAME_X_SHELL_WIDGET (f), columns, rows); /* Kick the manager so that it knows we've changed size. #### No, no, no! If this does anything at all, it will involve changing the manager's size. That's not something that a child widget should initialize as part of a purely informational method!! */ req.request_mode = 0; XtQueryGeometry (FRAME_X_CONTAINER_WIDGET (f), &req, &repl); EmacsManagerChangeSize (FRAME_X_CONTAINER_WIDGET (f), repl.width, repl.height); } } static Boolean EmacsFrameSetValues (Widget cur_widget, Widget UNUSED (req_widget), Widget new_widget, ArgList argv, Cardinal *argc) { EmacsFrame cur = (EmacsFrame) cur_widget; EmacsFrame new_ = (EmacsFrame) new_widget; struct frame *f = new_->emacs_frame.frame; in_resource_setting++; /* This function does not need to do much. Pretty much everything interesting will get done in the resize method, which will (if necessary) get called by Xt when this function returns (see below). */ /* #### This function will not work if it is not called from update_EmacsFrame(), called from SET_FACE_PROPERTY(). The code located there should be moved inside of here instead, so that things work if either SET_FACE_PROPERTY() is called or XtSetValues() is called. */ if (cur->emacs_frame.iconic != new_->emacs_frame.iconic && FRAME_X_TOP_LEVEL_FRAME_P (new_->emacs_frame.frame)) x_wm_set_shell_iconic_p (FRAME_X_SHELL_WIDGET (new_->emacs_frame.frame), new_->emacs_frame.iconic); /* If we got here, then we were likely called as a result of the EditRes protocol, so go ahead and change scrollbar-width and scrollbar-height. Otherwise, we're merely mirroring a change made to scrollbar-width etc. so don't do anything special. */ if (cur->emacs_frame.internal_border_width != new_->emacs_frame.internal_border_width) { f->internal_border_width = new_->emacs_frame.internal_border_width; MARK_FRAME_SIZE_SLIPPED (f); } #ifdef HAVE_SCROLLBARS if (cur->emacs_frame.scrollbar_width != new_->emacs_frame.scrollbar_width) Fadd_spec_to_specifier (Vscrollbar_width, make_fixnum (new_->emacs_frame.scrollbar_width), wrap_frame (f), Qnil, Qnil); if (cur->emacs_frame.scrollbar_height != new_->emacs_frame.scrollbar_height) Fadd_spec_to_specifier (Vscrollbar_height, make_fixnum (new_->emacs_frame.scrollbar_height), wrap_frame (f), Qnil, Qnil); #endif /* HAVE_SCROLLBARS */ #ifdef HAVE_TOOLBARS if (cur->emacs_frame.top_toolbar_height != new_->emacs_frame.top_toolbar_height) Fadd_spec_to_specifier (Vtoolbar_size[TOP_EDGE], make_fixnum (new_->emacs_frame.top_toolbar_height), wrap_frame (f), Qnil, Qnil); if (cur->emacs_frame.bottom_toolbar_height != new_->emacs_frame.bottom_toolbar_height) Fadd_spec_to_specifier (Vtoolbar_size[BOTTOM_EDGE], make_fixnum (new_->emacs_frame.bottom_toolbar_height), wrap_frame (f), Qnil, Qnil); if (cur->emacs_frame.left_toolbar_width != new_->emacs_frame.left_toolbar_width) Fadd_spec_to_specifier (Vtoolbar_size[LEFT_EDGE], make_fixnum (new_->emacs_frame.left_toolbar_width), wrap_frame (f), Qnil, Qnil); if (cur->emacs_frame.right_toolbar_width != new_->emacs_frame.right_toolbar_width) Fadd_spec_to_specifier (Vtoolbar_size[RIGHT_EDGE], make_fixnum (new_->emacs_frame.right_toolbar_width), wrap_frame (f), Qnil, Qnil); if (cur->emacs_frame.top_toolbar_border_width != new_->emacs_frame.top_toolbar_border_width) Fadd_spec_to_specifier (Vtoolbar_border_width[TOP_EDGE], make_fixnum (new_->emacs_frame.top_toolbar_border_width), wrap_frame (f), Qnil, Qnil); if (cur->emacs_frame.bottom_toolbar_border_width != new_->emacs_frame.bottom_toolbar_border_width) Fadd_spec_to_specifier (Vtoolbar_border_width[BOTTOM_EDGE], make_fixnum (new_->emacs_frame.bottom_toolbar_border_width), wrap_frame (f), Qnil, Qnil); if (cur->emacs_frame.left_toolbar_border_width != new_->emacs_frame.left_toolbar_border_width) Fadd_spec_to_specifier (Vtoolbar_border_width[LEFT_EDGE], make_fixnum (new_->emacs_frame.left_toolbar_border_width), wrap_frame (f), Qnil, Qnil); if (cur->emacs_frame.right_toolbar_border_width != new_->emacs_frame.right_toolbar_border_width) Fadd_spec_to_specifier (Vtoolbar_border_width[RIGHT_EDGE], make_fixnum (new_->emacs_frame.right_toolbar_border_width), wrap_frame (f), Qnil, Qnil); #endif /* HAVE_TOOLBARS */ in_resource_setting--; /* If the request was to resize us, but the size has not changed, Xt will do nothing, and won't call our resize callback. Since such a request might be issued as a result of hiding/showing menubar or changing toolbar placement, where we rely on relayout made by the callback, we go ahead and simulate such a call */ if (cur->core.width == new_->core.width && cur->core.height == new_->core.height) { int i; for (i = 0; i < (int) *argc; i++) if (strcmp (argv[i].name, XtNwidth) == 0 || strcmp (argv[i].name, XtNheight) == 0) { EmacsFrameResize (new_widget); break; } } return False; /* Note that if either (a) we return True, or (b) the width or height has changed, an Expose event will be generated. The Xt manual says you should not return True if the width or height has changed, because then two Expose events will be generated. In any case, there is no need to return True because SET_FACE_PROPERTY(), which does the resource setting, automatically forces a redisplay as necessary. */ } static XtGeometryResult EmacsFrameQueryGeometry (Widget widget, XtWidgetGeometry *request, XtWidgetGeometry *result) { EmacsFrame ew = (EmacsFrame) widget; int mask = request->request_mode; Dimension width, height; int ok_width_int, ok_height_int; Dimension ok_width, ok_height; /* We have a definite preference for what size we would like to be. 1) If a preferred size was specified for us, use it. (This is not currently used) 2) If a proposed size was given, round it to the nearest multiple of the default char size and return it. 3) Otherwise, take our current size and round it to the nearest multiple of the default char size. */ width = mask & CWWidth ? request->width : ew->core.width; height = mask & CWHeight ? request->height : ew->core.height; round_size_to_char (ew->emacs_frame.frame, width, height, &ok_width_int, &ok_height_int); ok_width = (Dimension) ok_width_int; ok_height = (Dimension) ok_height_int; if (ew->emacs_frame.preferred_width) ok_width = ew->emacs_frame.preferred_width; if (ew->emacs_frame.preferred_height) ok_height = ew->emacs_frame.preferred_height; result->request_mode |= CWWidth | CWHeight; result->width = ok_width; result->height = ok_height; if (((mask & CWWidth) && ok_width != request->width) || ((mask & CWHeight) && ok_height != request->height)) return XtGeometryAlmost; else return XtGeometryYes; } /* Xt string-to-scrollbar-placement converter */ /* #### Convert this to a `new-style' converter (See XtAddTypeConverter) */ /* This variable cannot be a stack variable. */ static unsigned char cvt_string_scrollbar_placement; /* ARGSUSED */ static void Xt_StringToScrollBarPlacement (XrmValuePtr UNUSED (args), Cardinal *UNUSED (num_args), XrmValuePtr fromVal, XrmValuePtr toVal) { /* !!#### needs work */ XrmQuark q; char *lowerName = (char *) ALLOCA (strlen ((char *) fromVal->addr) + 1); XmuCopyISOLatin1Lowered (lowerName, (char *) fromVal->addr); q = XrmStringToQuark (lowerName); toVal->size = sizeof (cvt_string_scrollbar_placement); toVal->addr = (XPointer) &cvt_string_scrollbar_placement; if (q == XrmStringToQuark ("top-left") || q == XrmStringToQuark ("top_left")) cvt_string_scrollbar_placement = XtTOP_LEFT; else if (q == XrmStringToQuark ("bottom-left") || q == XrmStringToQuark ("bottom_left")) cvt_string_scrollbar_placement = XtBOTTOM_LEFT; else if (q == XrmStringToQuark ("top-right") || q == XrmStringToQuark ("top_right")) cvt_string_scrollbar_placement = XtTOP_RIGHT; else if (q == XrmStringToQuark ("bottom-right") || q == XrmStringToQuark ("bottom_right")) cvt_string_scrollbar_placement = XtBOTTOM_RIGHT; else { XtStringConversionWarning (fromVal->addr, "scrollBarPlacement"); toVal->addr = NULL; toVal->size = 0; } } static void EmacsFrameClassInitialize (void) { XtAddConverter (XtRString, XtRScrollBarPlacement, Xt_StringToScrollBarPlacement, NULL, 0); } /********************* Special entrypoints *******************/ void EmacsFrameRecomputeCellSize (Widget w) { EmacsFrame ew = (EmacsFrame) w; int cw, ch; struct frame *f = ew->emacs_frame.frame; assert (XtIsSubclass (w, emacsFrameClass)); default_face_width_and_height (wrap_frame (f), &cw, &ch); if (FRAME_X_TOP_LEVEL_FRAME_P (f)) x_wm_set_cell_size (FRAME_X_SHELL_WIDGET (f), cw, ch); } /* Set the size of the widget to have the number of rows and columns specified. This both causes the X window to change and the internal frame structures to get modified to match. */ void EmacsFrameSetCharSize (Widget widget, int columns, int rows) { EmacsFrame ew = (EmacsFrame) widget; int pixel_width, pixel_height; struct frame *f = ew->emacs_frame.frame; if (columns < 3) columns = 3; /* no way buddy */ if (rows < 1) rows = 1; char_to_pixel_size (f, columns, rows, &pixel_width, &pixel_height); if (FRAME_X_TOP_LEVEL_FRAME_P (f)) x_wm_set_variable_size (FRAME_X_SHELL_WIDGET (f), columns, rows); { Arg al [2]; Xt_SET_ARG (al [0], XtNwidth, pixel_width); Xt_SET_ARG (al [1], XtNheight, pixel_height); XtSetValues ((Widget) ew, al, countof (al)); } }