--- /dev/null
+/* Functions for creating and updating GTK widgets.
+ Copyright (C) 2003
+ Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs 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 2, or (at your option)
+any later version.
+
+GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#include "config.h"
+
+#ifdef USE_GTK
+#include "lisp.h"
+#include "xterm.h"
+#include "blockinput.h"
+#include "window.h"
+#include "atimer.h"
+#include "gtkutil.h"
+#include "termhooks.h"
+#include <string.h>
+#include <stdio.h>
+#include <gdk/gdkkeysyms.h>
+
+#define FRAME_TOTAL_PIXEL_HEIGHT(f) \
+ (PIXEL_HEIGHT (f) + FRAME_MENUBAR_HEIGHT (f) + FRAME_TOOLBAR_HEIGHT (f))
+\f
+/***********************************************************************
+ Utility functions
+ ***********************************************************************/
+/* The timer for scroll bar repetition and menu bar timeouts.
+ NULL if no timer is started. */
+static struct atimer *xg_timer;
+
+/* The cursor used for scroll bars and popup menus.
+ We only have one cursor for all scroll bars and all popup menus. */
+static GdkCursor *xg_left_ptr_cursor;
+
+
+/* The next two variables and functions are taken from lwlib. */
+static widget_value *widget_value_free_list;
+static int malloc_cpt;
+
+/* Allocate a widget_value structure, either by taking one from the
+ widget_value_free_list or by malloc:ing a new one.
+
+ Return a pointer to the allocated structure. */
+widget_value *
+malloc_widget_value ()
+{
+ widget_value *wv;
+ if (widget_value_free_list)
+ {
+ wv = widget_value_free_list;
+ widget_value_free_list = wv->free_list;
+ wv->free_list = 0;
+ }
+ else
+ {
+ wv = (widget_value *) malloc (sizeof (widget_value));
+ malloc_cpt++;
+ }
+ memset (wv, 0, sizeof (widget_value));
+ return wv;
+}
+
+/* This is analogous to free. It frees only what was allocated
+ by malloc_widget_value, and no substructures. */
+void
+free_widget_value (wv)
+ widget_value *wv;
+{
+ if (wv->free_list)
+ abort ();
+
+ if (malloc_cpt > 25)
+ {
+ /* When the number of already allocated cells is too big,
+ We free it. */
+ free (wv);
+ malloc_cpt--;
+ }
+ else
+ {
+ wv->free_list = widget_value_free_list;
+ widget_value_free_list = wv;
+ }
+}
+
+/* Set *CURSOR on W and all widgets W contain. We must do like this
+ for scroll bars and menu because they create widgets internally,
+ and it is those widgets that are visible.
+
+ If *CURSOR is NULL, create a GDK_LEFT_PTR cursor and set *CURSOR to
+ the created cursor. */
+void
+xg_set_cursor (w, cursor)
+ GtkWidget *w;
+ GdkCursor **cursor;
+{
+ GList *children = gdk_window_peek_children (w->window);
+
+ /* Create the cursor unless already created. */
+ if (! *cursor)
+ *cursor = gdk_cursor_new (GDK_LEFT_PTR);
+
+ gdk_window_set_cursor (w->window, *cursor);
+
+ /* The scroll bar widget has more than one GDK window (had to look at
+ the source to figure this out), and there is no way to set cursor
+ on widgets in GTK. So we must set the cursor for all GDK windows.
+ Ditto for menus. */
+
+ for ( ; children; children = g_list_next (children))
+ gdk_window_set_cursor (GDK_WINDOW (children->data), *cursor);
+}
+
+/* Timer function called when a timeout occurs for xg_timer.
+ This function processes all GTK events in a recursive event loop.
+ This is done because GTK timer events are not seen by Emacs event
+ detection, Emacs only looks for X events. When a scroll bar has the
+ pointer (detected by button press/release events below) an Emacs
+ timer is started, and this function can then check if the GTK timer
+ has expired by calling the GTK event loop.
+ Also, when a menu is active, it has a small timeout before it
+ pops down the sub menu under it. */
+static void
+xg_process_timeouts (timer)
+ struct atimer *timer;
+{
+ BLOCK_INPUT;
+ /* Ideally we would like to just handle timer events, like the Xt version
+ of this does in xterm.c, but there is no such feature in GTK. */
+ while (gtk_events_pending ())
+ gtk_main_iteration ();
+ UNBLOCK_INPUT;
+}
+
+/* Start the xg_timer with an interval of 0.1 seconds, if not already started.
+ xg_process_timeouts is called when the timer expires. The timer
+ stared is continuous, i.e. runs until xg_stop_timer is called. */
+static void
+xg_start_timer ()
+{
+ if (! xg_timer)
+ {
+ EMACS_TIME interval;
+ EMACS_SET_SECS_USECS (interval, 0, 100000);
+ xg_timer = start_atimer (ATIMER_CONTINUOUS,
+ interval,
+ xg_process_timeouts,
+ 0);
+ }
+}
+
+/* Stop the xg_timer if started. */
+static void
+xg_stop_timer ()
+{
+ if (xg_timer)
+ {
+ cancel_atimer (xg_timer);
+ xg_timer = 0;
+ }
+}
+
+/* Insert NODE into linked LIST. */
+static void
+xg_list_insert (xg_list_node *list, xg_list_node *node)
+{
+ xg_list_node *list_start = list->next;
+
+ if (list_start) list_start->prev = node;
+ node->next = list_start;
+ node->prev = 0;
+ list->next = node;
+}
+
+/* Remove NODE from linked LIST. */
+static void
+xg_list_remove (xg_list_node *list, xg_list_node *node)
+{
+ xg_list_node *list_start = list->next;
+ if (node == list_start)
+ {
+ list->next = node->next;
+ if (list->next) list->next->prev = 0;
+ }
+ else
+ {
+ node->prev->next = node->next;
+ if (node->next) node->next->prev = node->prev;
+ }
+}
+
+/* Allocate and return a utf8 version of STR. If STR is already
+ utf8 or NULL, just return STR.
+ If not, a new string is allocated and the caller must free the result
+ with g_free. */
+static char *
+get_utf8_string (str)
+ char *str;
+{
+ char *utf8_str = str;
+
+ /* If not UTF-8, try current locale. */
+ if (str && !g_utf8_validate (str, -1, NULL))
+ utf8_str = g_locale_to_utf8 (str, -1, 0, 0, 0);
+
+ return utf8_str;
+}
+
+
+\f
+/***********************************************************************
+ General functions for creating widgets, resizing, events, e.t.c.
+ ***********************************************************************/
+
+/* Make a geometry string and pass that to GTK. It seems this is the
+ only way to get geometry position right if the user explicitly
+ asked for a position when starting Emacs.
+ F is the frame we shall set geometry for. */
+static void
+xg_set_geometry (f)
+ FRAME_PTR f;
+{
+ if (f->output_data.x->size_hint_flags & USPosition)
+ {
+ int left = f->output_data.x->left_pos;
+ int xneg = f->output_data.x->size_hint_flags & XNegative;
+ int top = f->output_data.x->top_pos;
+ int yneg = f->output_data.x->size_hint_flags & YNegative;
+ char geom_str[32];
+
+ if (xneg)
+ left = -left;
+ if (yneg)
+ top = -top;
+
+ sprintf (geom_str, "=%dx%d%c%d%c%d",
+ PIXEL_WIDTH (f),
+ FRAME_TOTAL_PIXEL_HEIGHT (f),
+ (xneg ? '-' : '+'), left,
+ (yneg ? '-' : '+'), top);
+
+ if (!gtk_window_parse_geometry (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)),
+ geom_str))
+ fprintf (stderr, "Failed to parse: '%s'\n", geom_str);
+ }
+}
+
+
+/* Resize the outer window of frame F after chainging the height.
+ This happend when the menu bar or the tool bar is added or removed.
+ COLUMNS/ROWS is the size the edit area shall have after the resize. */
+static void
+xg_resize_outer_widget (f, columns, rows)
+ FRAME_PTR f;
+ int columns;
+ int rows;
+{
+ gtk_window_resize (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)),
+ PIXEL_WIDTH (f), FRAME_TOTAL_PIXEL_HEIGHT (f));
+
+ /* base_height is now changed. */
+ x_wm_set_size_hint (f, 0, 0);
+
+ /* If we are not mapped yet, set geometry once again, as window
+ height now have changed. */
+ if (! GTK_WIDGET_MAPPED (FRAME_GTK_OUTER_WIDGET (f)))
+ xg_set_geometry (f);
+
+ xg_frame_set_char_size (f, columns, rows);
+ gdk_window_process_all_updates ();
+}
+
+/* Function to handle resize of our widgets. Since Emacs has some layouts
+ that does not fit well with GTK standard containers, we do most layout
+ manually.
+ F is the frame to resize.
+ PIXELWIDTH, PIXELHEIGHT is the new size in pixels. */
+void
+xg_resize_widgets (f, pixelwidth, pixelheight)
+ FRAME_PTR f;
+ int pixelwidth, pixelheight;
+{
+ int mbheight = FRAME_MENUBAR_HEIGHT (f);
+ int tbheight = FRAME_TOOLBAR_HEIGHT (f);
+ int rows = PIXEL_TO_CHAR_HEIGHT (f, pixelheight - mbheight - tbheight);
+ int columns = PIXEL_TO_CHAR_WIDTH (f, pixelwidth);
+
+ if (FRAME_GTK_WIDGET (f)
+ && (columns != FRAME_WIDTH (f) || rows != FRAME_HEIGHT (f)
+ || pixelwidth != PIXEL_WIDTH (f) || pixelheight != PIXEL_HEIGHT (f)))
+ {
+ struct x_output *x = f->output_data.x;
+ GtkAllocation all;
+
+ all.y = mbheight + tbheight;
+ all.x = 0;
+
+ all.width = pixelwidth;
+ all.height = pixelheight - mbheight - tbheight;
+
+ gtk_widget_size_allocate (x->edit_widget, &all);
+ gdk_window_process_all_updates ();
+
+ change_frame_size (f, rows, columns, 0, 1, 0);
+ SET_FRAME_GARBAGED (f);
+ cancel_mouse_face (f);
+ }
+}
+
+
+/* Update our widget size to be COLS/ROWS characters for frame F. */
+void
+xg_frame_set_char_size (f, cols, rows)
+ FRAME_PTR f;
+ int cols;
+ int rows;
+{
+ int pixelheight = CHAR_TO_PIXEL_HEIGHT (f, rows)
+ + FRAME_MENUBAR_HEIGHT (f) + FRAME_TOOLBAR_HEIGHT (f);
+ int pixelwidth = CHAR_TO_PIXEL_WIDTH (f, cols);
+
+ /* Take into account the size of the scroll bar. Always use the
+ number of columns occupied by the scroll bar here otherwise we
+ might end up with a frame width that is not a multiple of the
+ frame's character width which is bad for vertically split
+ windows. */
+ f->output_data.x->vertical_scroll_bar_extra
+ = (!FRAME_HAS_VERTICAL_SCROLL_BARS (f)
+ ? 0
+ : (FRAME_SCROLL_BAR_COLS (f)
+ * FONT_WIDTH (f->output_data.x->font)));
+
+ x_compute_fringe_widths (f, 0);
+
+ /* Must resize our top level widget. Font size may have changed,
+ but not rows/cols. */
+ gtk_window_resize (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)),
+ pixelwidth, pixelheight);
+ xg_resize_widgets (f, pixelwidth, pixelheight);
+}
+
+/* Convert an X Window WSESC to its corresponding GtkWidget.
+ Must be done like this, because GtkWidget:s can have "hidden"
+ X Window that aren't accessible.
+
+ Return 0 if no widget match WDESC. */
+GtkWidget *
+xg_win_to_widget (wdesc)
+ Window wdesc;
+{
+ gpointer gdkwin;
+ GtkWidget *gwdesc = 0;
+
+ BLOCK_INPUT;
+ gdkwin = gdk_xid_table_lookup (wdesc);
+ if (gdkwin)
+ {
+ GdkEvent event;
+ event.any.window = gdkwin;
+ gwdesc = gtk_get_event_widget (&event);
+ }
+
+ UNBLOCK_INPUT;
+ return gwdesc;
+}
+
+/* Fill in the GdkColor C so that it represents PIXEL.
+ W is the widget that color will be used for. Used to find colormap. */
+static void
+xg_pix_to_gcolor (w, pixel, c)
+ GtkWidget *w;
+ unsigned long pixel;
+ GdkColor *c;
+{
+ GdkColormap *map = gtk_widget_get_colormap (w);
+ gdk_colormap_query_color (map, pixel, c);
+}
+
+/* Create and set up the GTK widgets for frame F.
+ Return 0 if creation failed, non-zero otherwise. */
+int
+xg_create_frame_widgets (f)
+ FRAME_PTR f;
+{
+ GtkWidget *wtop;
+ GtkWidget *wvbox;
+ GtkWidget *wfixed;
+ GdkColor bg;
+ GtkRcStyle *style;
+ int i;
+ char *title = 0;
+
+ BLOCK_INPUT;
+
+ wtop = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+ wvbox = gtk_vbox_new (FALSE, 0);
+ wfixed = gtk_fixed_new (); /* Must have this to place scroll bars */
+
+ if (! wtop || ! wvbox || ! wfixed)
+ {
+ if (wtop) gtk_widget_destroy (wtop);
+ if (wvbox) gtk_widget_destroy (wvbox);
+ if (wfixed) gtk_widget_destroy (wfixed);
+
+ return 0;
+ }
+
+ /* Use same names as the Xt port does. I.e. Emacs.pane.emacs by default */
+ gtk_widget_set_name (wtop, EMACS_CLASS);
+ gtk_widget_set_name (wvbox, "pane");
+ gtk_widget_set_name (wfixed, SDATA (Vx_resource_name));
+
+ /* If this frame has a title or name, set it in the title bar. */
+ if (! NILP (f->title)) title = SDATA (f->title);
+ else if (! NILP (f->name)) title = SDATA (f->name);
+
+ if (title) gtk_window_set_title (GTK_WINDOW (wtop), title);
+
+ FRAME_GTK_OUTER_WIDGET (f) = wtop;
+ FRAME_GTK_WIDGET (f) = wfixed;
+ f->output_data.x->vbox_widget = wvbox;
+
+ gtk_fixed_set_has_window (GTK_FIXED (wfixed), TRUE);
+
+ gtk_widget_set_size_request (wfixed,
+ PIXEL_WIDTH (f),
+ PIXEL_HEIGHT (f));
+
+ gtk_container_add (GTK_CONTAINER (wtop), wvbox);
+ gtk_box_pack_end (GTK_BOX (wvbox), wfixed, TRUE, TRUE, 0);
+
+ if (FRAME_EXTERNAL_TOOL_BAR (f))
+ update_frame_tool_bar (f);
+
+ /* The tool bar is created but first there are no items in it.
+ This causes it to be zero height. Later items are added, but then
+ the frame is already mapped, so there is a "jumping" resize.
+ This makes geometry handling difficult, for example -0-0 will end
+ up in the wrong place as tool bar height has not been taken into account.
+ So we cheat a bit by setting a height that is what it will have
+ later on when tool bar items are added. */
+ if (FRAME_TOOLBAR_HEIGHT (f) == 0)
+ FRAME_TOOLBAR_HEIGHT (f) = 34;
+
+ gtk_widget_set_double_buffered (wvbox, FALSE);
+ gtk_widget_set_double_buffered (wfixed, FALSE);
+ gtk_widget_set_double_buffered (wtop, FALSE);
+
+ /* GTK documents says use gtk_window_set_resizable. But then a user
+ can't shrink the window from its starting size. */
+ gtk_window_set_policy (GTK_WINDOW (wtop), TRUE, TRUE, TRUE);
+ gtk_window_set_wmclass (GTK_WINDOW (wtop),
+ SDATA (Vx_resource_name),
+ SDATA (Vx_resource_class));
+
+ /* Add callback to do nothing on WM_DELETE_WINDOW. The default in
+ GTK is to destroy the widget. We want Emacs to do that instead. */
+ g_signal_connect (G_OBJECT (wtop), "delete-event",
+ G_CALLBACK (gtk_true), 0);
+
+ /* Convert our geometry parameters into a geometry string
+ and specify it.
+ GTK will itself handle calculating the real position this way. */
+ xg_set_geometry (f);
+
+ gtk_widget_add_events (wfixed,
+ GDK_POINTER_MOTION_MASK
+ | GDK_EXPOSURE_MASK
+ | GDK_BUTTON_PRESS_MASK
+ | GDK_BUTTON_RELEASE_MASK
+ | GDK_KEY_PRESS_MASK
+ | GDK_ENTER_NOTIFY_MASK
+ | GDK_LEAVE_NOTIFY_MASK
+ | GDK_FOCUS_CHANGE_MASK
+ | GDK_STRUCTURE_MASK
+ | GDK_VISIBILITY_NOTIFY_MASK);
+
+ /* Must realize the windows so the X window gets created. It is used
+ by callers of this function. */
+ gtk_widget_realize (wfixed);
+ FRAME_X_WINDOW (f) = GTK_WIDGET_TO_X_WIN (wfixed);
+
+ /* Since GTK clears its window by filling with the background color,
+ we must keep X and GTK background in sync. */
+ xg_pix_to_gcolor (wfixed, f->output_data.x->background_pixel, &bg);
+ gtk_widget_modify_bg (wfixed, GTK_STATE_NORMAL, &bg);
+
+ /* Also, do not let any background pixmap to be set, this looks very
+ bad as Emacs overwrites the background pixmap with its own idea
+ of background color. */
+ style = gtk_widget_get_modifier_style (wfixed);
+
+ /* Must use g_strdup because gtk_widget_modify_style does g_free. */
+ style->bg_pixmap_name[GTK_STATE_NORMAL] = g_strdup ("<none>");
+ gtk_widget_modify_style (wfixed, style);
+
+ /* GTK does not set any border, and they look bad with GTK. */
+ f->output_data.x->border_width = 0;
+ f->output_data.x->internal_border_width = 0;
+
+ UNBLOCK_INPUT;
+
+ return 1;
+}
+
+/* Set the normal size hints for the window manager, for frame F.
+ FLAGS is the flags word to use--or 0 meaning preserve the flags
+ that the window now has.
+ If USER_POSITION is nonzero, we set the User Position
+ flag (this is useful when FLAGS is 0). */
+void
+x_wm_set_size_hint (f, flags, user_position)
+ FRAME_PTR f;
+ long flags;
+ int user_position;
+{
+ if (FRAME_GTK_OUTER_WIDGET (f))
+ {
+ /* Must use GTK routines here, otherwise GTK resets the size hints
+ to its own defaults. */
+ GdkGeometry size_hints;
+ gint hint_flags = 0;
+ int base_width, base_height;
+ int min_rows = 0, min_cols = 0;
+ int win_gravity = f->output_data.x->win_gravity;
+
+ if (flags)
+ {
+ memset (&size_hints, 0, sizeof (size_hints));
+ f->output_data.x->size_hints = size_hints;
+ f->output_data.x->hint_flags = hint_flags;
+ }
+ else
+ flags = f->output_data.x->size_hint_flags;
+
+ size_hints = f->output_data.x->size_hints;
+ hint_flags = f->output_data.x->hint_flags;
+
+ hint_flags |= GDK_HINT_RESIZE_INC | GDK_HINT_MIN_SIZE;
+ size_hints.width_inc = FONT_WIDTH (f->output_data.x->font);
+ size_hints.height_inc = f->output_data.x->line_height;
+
+ hint_flags |= GDK_HINT_BASE_SIZE;
+ base_width = CHAR_TO_PIXEL_WIDTH (f, 0);
+ base_height = CHAR_TO_PIXEL_HEIGHT (f, 0)
+ + FRAME_MENUBAR_HEIGHT (f) + FRAME_TOOLBAR_HEIGHT (f);
+
+ check_frame_size (f, &min_rows, &min_cols);
+
+ size_hints.base_width = base_width;
+ size_hints.base_height = base_height;
+ size_hints.min_width = base_width + min_cols * size_hints.width_inc;
+ size_hints.min_height = base_height + min_rows * size_hints.height_inc;
+
+
+ /* These currently have a one to one mapping with the X values, but I
+ don't think we should rely on that. */
+ hint_flags |= GDK_HINT_WIN_GRAVITY;
+ size_hints.win_gravity = 0;
+ if (win_gravity == NorthWestGravity)
+ size_hints.win_gravity = GDK_GRAVITY_NORTH_WEST;
+ else if (win_gravity == NorthGravity)
+ size_hints.win_gravity = GDK_GRAVITY_NORTH;
+ else if (win_gravity == NorthEastGravity)
+ size_hints.win_gravity = GDK_GRAVITY_NORTH_EAST;
+ else if (win_gravity == WestGravity)
+ size_hints.win_gravity = GDK_GRAVITY_WEST;
+ else if (win_gravity == CenterGravity)
+ size_hints.win_gravity = GDK_GRAVITY_CENTER;
+ else if (win_gravity == EastGravity)
+ size_hints.win_gravity = GDK_GRAVITY_EAST;
+ else if (win_gravity == SouthWestGravity)
+ size_hints.win_gravity = GDK_GRAVITY_SOUTH_WEST;
+ else if (win_gravity == SouthGravity)
+ size_hints.win_gravity = GDK_GRAVITY_SOUTH;
+ else if (win_gravity == SouthEastGravity)
+ size_hints.win_gravity = GDK_GRAVITY_SOUTH_EAST;
+ else if (win_gravity == StaticGravity)
+ size_hints.win_gravity = GDK_GRAVITY_STATIC;
+
+ if (flags & PPosition) hint_flags |= GDK_HINT_POS;
+ if (flags & USPosition) hint_flags |= GDK_HINT_USER_POS;
+ if (flags & USSize) hint_flags |= GDK_HINT_USER_SIZE;
+
+ if (user_position)
+ {
+ hint_flags &= ~GDK_HINT_POS;
+ hint_flags |= GDK_HINT_USER_POS;
+ }
+
+ BLOCK_INPUT;
+
+ gtk_window_set_geometry_hints (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)),
+ FRAME_GTK_OUTER_WIDGET (f),
+ &size_hints,
+ hint_flags);
+
+ f->output_data.x->size_hints = size_hints;
+ f->output_data.x->hint_flags = hint_flags;
+ UNBLOCK_INPUT;
+ }
+}
+
+/* Change background color of a frame.
+ Since GTK uses the background colour to clear the window, we must
+ keep the GTK and X colors in sync.
+ F is the frame to change,
+ BG is the pixel value to change to. */
+void
+xg_set_background_color (f, bg)
+ FRAME_PTR f;
+ unsigned long bg;
+{
+ if (FRAME_GTK_WIDGET (f))
+ {
+ GdkColor gdk_bg;
+
+ BLOCK_INPUT;
+ xg_pix_to_gcolor (FRAME_GTK_WIDGET (f), bg, &gdk_bg);
+ gtk_widget_modify_bg (FRAME_GTK_WIDGET (f), GTK_STATE_NORMAL, &gdk_bg);
+ UNBLOCK_INPUT;
+ }
+}
+
+
+\f
+/***********************************************************************
+ Dialog functions
+ ***********************************************************************/
+/* Return the dialog title to use for a dialog of type KEY.
+ This is the encoding used by lwlib. We use the same for GTK. */
+static char *
+get_dialog_title (char key)
+{
+ char *title = "";
+
+ switch (key) {
+ case 'E': case 'e':
+ title = "Error";
+ break;
+
+ case 'I': case 'i':
+ title = "Information";
+ break;
+
+ case 'L': case 'l':
+ title = "Prompt";
+ break;
+
+ case 'P': case 'p':
+ title = "Prompt";
+ break;
+
+ case 'Q': case 'q':
+ title = "Question";
+ break;
+ }
+
+ return title;
+}
+
+/* Callback for dialogs that get WM_DELETE_WINDOW. We pop down
+ the dialog, but return TRUE so the event does not propagate further
+ in GTK. This prevents GTK from destroying the dialog widget automatically
+ and we can always destrou the widget manually, regardles of how
+ it was popped down (button press or WM_DELETE_WINDOW).
+ W is the dialog widget.
+ EVENT is the GdkEvent that represents WM_DELETE_WINDOW (not used).
+ user_data is NULL (not used).
+
+ Returns TRUE to end propagation of event. */
+static gboolean
+dialog_delete_callback (w, event, user_data)
+ GtkWidget *w;
+ GdkEvent *event;
+ gpointer user_data;
+{
+ gtk_widget_unmap (w);
+ return TRUE;
+}
+
+/* Create a popup dialog window. See also xg_create_widget below.
+ WV is a widget_value describing the dialog.
+ SELECT_CB is the callback to use when a button has been pressed.
+ DEACTIVATE_CB is the callback to use when the dialog pops down.
+
+ Returns the GTK dialog widget. */
+static GtkWidget *
+create_dialog (wv, select_cb, deactivate_cb)
+ widget_value *wv;
+ GCallback select_cb;
+ GCallback deactivate_cb;
+{
+ char *title = get_dialog_title (wv->name[0]);
+ int total_buttons = wv->name[1] - '0';
+ int right_buttons = wv->name[4] - '0';
+ int left_buttons;
+ int button_nr = 0;
+ int button_spacing = 10;
+ GtkWidget *wdialog = gtk_dialog_new ();
+ widget_value *item;
+ GtkBox *cur_box;
+ GtkWidget *wvbox;
+ GtkWidget *whbox_up;
+ GtkWidget *whbox_down;
+
+ /* If the number of buttons is greater than 4, make two rows of buttons
+ instead. This looks better. */
+ int make_two_rows = total_buttons > 4;
+
+ if (right_buttons == 0) right_buttons = total_buttons/2;
+ left_buttons = total_buttons - right_buttons;
+
+ gtk_window_set_title (GTK_WINDOW (wdialog), title);
+ gtk_widget_set_name (wdialog, "emacs-dialog");
+
+ cur_box = GTK_BOX (GTK_DIALOG (wdialog)->action_area);
+
+ if (make_two_rows)
+ {
+ wvbox = gtk_vbox_new (TRUE, button_spacing);
+ whbox_up = gtk_hbox_new (FALSE, 0);
+ whbox_down = gtk_hbox_new (FALSE, 0);
+
+ gtk_box_pack_start (cur_box, wvbox, FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (wvbox), whbox_up, FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (wvbox), whbox_down, FALSE, FALSE, 0);
+
+ cur_box = GTK_BOX (whbox_up);
+ }
+
+ g_signal_connect (G_OBJECT (wdialog), "delete-event",
+ G_CALLBACK (dialog_delete_callback), 0);
+
+ if (deactivate_cb)
+ {
+ g_signal_connect (G_OBJECT (wdialog), "close", deactivate_cb, 0);
+ g_signal_connect (G_OBJECT (wdialog), "response", deactivate_cb, 0);
+ }
+
+ for (item = wv->contents; item; item = item->next)
+ {
+ char *utf8_label = get_utf8_string (item->value);
+ GtkWidget *w;
+ GtkRequisition req;
+
+ if (strcmp (item->name, "message") == 0)
+ {
+ /* This is the text part of the dialog. */
+ w = gtk_label_new (utf8_label);
+ gtk_box_pack_start (GTK_BOX (GTK_DIALOG (wdialog)->vbox),
+ gtk_label_new (""),
+ FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (GTK_DIALOG (wdialog)->vbox), w,
+ TRUE, TRUE, 0);
+ gtk_misc_set_alignment (GTK_MISC (w), 0.1, 0.5);
+
+ /* Try to make dialog look better. Must realize first so
+ the widget can calculate the size it needs. */
+ gtk_widget_realize (w);
+ gtk_widget_size_request (w, &req);
+ gtk_box_set_spacing (GTK_BOX (GTK_DIALOG (wdialog)->vbox),
+ req.height);
+ if (strlen (item->value) > 0)
+ button_spacing = 2*req.width/strlen (item->value);
+ }
+ else
+ {
+ /* This is one button to add to the dialog. */
+ w = gtk_button_new_with_mnemonic (utf8_label);
+ if (! item->enabled)
+ gtk_widget_set_sensitive (w, FALSE);
+ if (select_cb)
+ g_signal_connect (G_OBJECT (w), "clicked",
+ select_cb, item->call_data);
+
+ gtk_box_pack_start (cur_box, w, TRUE, TRUE, button_spacing);
+ if (++button_nr == left_buttons)
+ {
+ if (make_two_rows)
+ cur_box = GTK_BOX (whbox_down);
+ else
+ gtk_box_pack_start (cur_box,
+ gtk_label_new (""),
+ TRUE, TRUE,
+ button_spacing);
+ }
+ }
+
+ if (utf8_label && utf8_label != item->value)
+ g_free (utf8_label);
+ }
+
+ return wdialog;
+}
+
+
+enum
+{
+ XG_FILE_NOT_DONE,
+ XG_FILE_OK,
+ XG_FILE_CANCEL,
+ XG_FILE_DESTROYED,
+};
+
+/* Callback function invoked when the Ok button is pressed in
+ a file dialog.
+ W is the file dialog widget,
+ ARG points to an integer where we record what has happend. */
+static void
+xg_file_sel_ok (w, arg)
+ GtkWidget *w;
+ gpointer arg;
+{
+ *(int*)arg = XG_FILE_OK;
+}
+
+/* Callback function invoked when the Cancel button is pressed in
+ a file dialog.
+ W is the file dialog widget,
+ ARG points to an integer where we record what has happend. */
+static void
+xg_file_sel_cancel (w, arg)
+ GtkWidget *w;
+ gpointer arg;
+{
+ *(int*)arg = XG_FILE_CANCEL;
+}
+
+/* Callback function invoked when the file dialog is destroyed (i.e.
+ popped down). We must keep track of this, because if this
+ happens, GTK destroys the widget. But if for example, Ok is pressed,
+ the dialog is popped down, but the dialog widget is not destroyed.
+ W is the file dialog widget,
+ ARG points to an integer where we record what has happend. */
+static void
+xg_file_sel_destroy (w, arg)
+ GtkWidget *w;
+ gpointer arg;
+{
+ *(int*)arg = XG_FILE_DESTROYED;
+}
+
+/* Read a file name from the user using a file dialog.
+ F is the current frame.
+ PROMPT is a prompt to show to the user. May not be NULL.
+ DEFAULT_FILENAME is a default selection to be displayed. May be NULL.
+ If MUSTMATCH_P is non-zero, the returned file name must be an existing
+ file.
+
+ Returns a file name or NULL if no file was selected.
+ The returned string must be freed by the caller. */
+char *
+xg_get_file_name (f, prompt, default_filename, mustmatch_p)
+ FRAME_PTR f;
+ char *prompt;
+ char *default_filename;
+ int mustmatch_p;
+{
+ GtkWidget *filewin;
+ GtkFileSelection *filesel;
+ int filesel_done = XG_FILE_NOT_DONE;
+ char *fn = 0;
+
+ filewin = gtk_file_selection_new (prompt);
+ filesel = GTK_FILE_SELECTION (filewin);
+
+ gtk_widget_set_name (filewin, "emacs-filedialog");
+
+ gtk_window_set_transient_for (GTK_WINDOW (filewin),
+ GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)));
+ gtk_window_set_destroy_with_parent (GTK_WINDOW (filewin), TRUE);
+
+ g_signal_connect (G_OBJECT (filesel->ok_button),
+ "clicked",
+ G_CALLBACK (xg_file_sel_ok),
+ &filesel_done);
+ g_signal_connect (G_OBJECT (filesel->cancel_button),
+ "clicked",
+ G_CALLBACK (xg_file_sel_cancel),
+ &filesel_done);
+ g_signal_connect (G_OBJECT (filesel),
+ "destroy",
+ G_CALLBACK (xg_file_sel_destroy),
+ &filesel_done);
+
+ if (default_filename)
+ gtk_file_selection_set_filename (filesel, default_filename);
+
+ if (mustmatch_p)
+ {
+ /* The selection_entry part of filesel is not documented. */
+ gtk_widget_set_sensitive (filesel->selection_entry, FALSE);
+ gtk_file_selection_hide_fileop_buttons (filesel);
+ }
+
+
+ gtk_widget_show_all (filewin);
+
+ while (filesel_done == XG_FILE_NOT_DONE)
+ gtk_main_iteration ();
+
+ if (filesel_done == XG_FILE_OK)
+ fn = xstrdup ((char*) gtk_file_selection_get_filename (filesel));
+
+ if (filesel_done != XG_FILE_DESTROYED)
+ gtk_widget_destroy (filewin);
+
+ return fn;
+}
+
+\f
+/***********************************************************************
+ Menu functions.
+ ***********************************************************************/
+
+/* The name of menu items that can be used for citomization. Since GTK
+ RC files are very crude and primitive, we have to set this on all
+ menu item names so a user can easily cutomize menu items. */
+
+#define MENU_ITEM_NAME "emacs-menuitem"
+
+
+/* Linked list of all allocated struct xg_menu_cb_data. Used for marking
+ during GC. The next member points to the items. */
+static xg_list_node xg_menu_cb_list;
+
+/* Linked list of all allocated struct xg_menu_item_cb_data. Used for marking
+ during GC. The next member points to the items. */
+static xg_list_node xg_menu_item_cb_list;
+
+/* Allocate and initialize CL_DATA if NULL, otherwise increase ref_count.
+ F is the frame CL_DATA will be initialized for.
+ HIGHLIGHT_CB is the callback to call when entering/leaving menu items.
+
+ The menu bar and all sub menus under the menu bar in a frame
+ share the same structure, hence the reference count.
+
+ Returns CL_DATA if CL_DATA is not NULL, or a pointer to a newly
+ allocated xg_menu_cb_data if CL_DATA is NULL. */
+static xg_menu_cb_data *
+make_cl_data (cl_data, f, highlight_cb)
+ xg_menu_cb_data *cl_data;
+ FRAME_PTR f;
+ GCallback highlight_cb;
+{
+ if (! cl_data)
+ {
+ cl_data = (xg_menu_cb_data*) xmalloc (sizeof (*cl_data));
+ cl_data->f = f;
+ cl_data->menu_bar_vector = f->menu_bar_vector;
+ cl_data->menu_bar_items_used = f->menu_bar_items_used;
+ cl_data->highlight_cb = highlight_cb;
+ cl_data->ref_count = 0;
+
+ xg_list_insert (&xg_menu_cb_list, &cl_data->ptrs);
+ }
+
+ cl_data->ref_count++;
+
+ return cl_data;
+}
+
+/* Update CL_DATA with values from frame F and with HIGHLIGHT_CB.
+ HIGHLIGHT_CB is the callback to call when entering/leaving menu items.
+
+ When the menu bar is updated, menu items may have been added and/or
+ removed, so menu_bar_vector and menu_bar_items_used change. We must
+ then update CL_DATA since it is used to determine which menu
+ item that is invoked in the menu.
+ HIGHLIGHT_CB could change, there is no check that the same
+ function is given when modifying a menu bar as was given when
+ creating the menu bar. */
+static void
+update_cl_data (cl_data, f, highlight_cb)
+ xg_menu_cb_data *cl_data;
+ FRAME_PTR f;
+ GCallback highlight_cb;
+{
+ if (cl_data)
+ {
+ cl_data->f = f;
+ cl_data->menu_bar_vector = f->menu_bar_vector;
+ cl_data->menu_bar_items_used = f->menu_bar_items_used;
+ cl_data->highlight_cb = highlight_cb;
+ }
+}
+
+/* Decrease reference count for CL_DATA.
+ If reference count is zero, free CL_DATA. */
+static void
+unref_cl_data (cl_data)
+ xg_menu_cb_data *cl_data;
+{
+ if (cl_data && cl_data->ref_count > 0)
+ {
+ cl_data->ref_count--;
+ if (cl_data->ref_count == 0)
+ {
+ xg_list_remove (&xg_menu_cb_list, &cl_data->ptrs);
+ xfree (cl_data);
+ }
+ }
+}
+
+/* Function that marks all lisp data during GC. */
+void
+xg_mark_data ()
+{
+ xg_list_node *iter;
+
+ for (iter = xg_menu_cb_list.next; iter; iter = iter->next)
+ mark_object (&((xg_menu_cb_data *) iter)->menu_bar_vector);
+
+ for (iter = xg_menu_item_cb_list.next; iter; iter = iter->next)
+ {
+ xg_menu_item_cb_data *cb_data = (xg_menu_item_cb_data *) iter;
+
+ if (! NILP (cb_data->help))
+ mark_object (&cb_data->help);
+ }
+}
+
+
+/* Callback called when a menu item is destroyed. Used to free data.
+ W is the widget that is being destroyed (not used).
+ CLIENT_DATA points to the xg_menu_item_cb_data associated with the W. */
+static void
+menuitem_destroy_callback (w, client_data)
+ GtkWidget *w;
+ gpointer client_data;
+{
+ if (client_data)
+ {
+ xg_menu_item_cb_data *data = (xg_menu_item_cb_data*) client_data;
+ xg_list_remove (&xg_menu_item_cb_list, &data->ptrs);
+ xfree (data);
+ }
+}
+
+/* Callback called when the pointer enters/leaves a menu item.
+ W is the menu item.
+ EVENT is either an enter event or leave event.
+ CLIENT_DATA points to the xg_menu_item_cb_data associated with the W.
+
+ Returns FALSE to tell GTK to keep processing this event. */
+static gboolean
+menuitem_highlight_callback (w, event, client_data)
+ GtkWidget *w;
+ GdkEventCrossing *event;
+ gpointer client_data;
+{
+ if (client_data)
+ {
+ xg_menu_item_cb_data *data = (xg_menu_item_cb_data*) client_data;
+ gpointer call_data = event->type == GDK_LEAVE_NOTIFY ? 0 : client_data;
+
+ if (! NILP (data->help) && data->cl_data->highlight_cb)
+ {
+ GtkCallback func = (GtkCallback) data->cl_data->highlight_cb;
+ (*func) (w, call_data);
+ }
+ }
+
+ return FALSE;
+}
+
+/* Callback called when a menu is destroyed. Used to free data.
+ W is the widget that is being destroyed (not used).
+ CLIENT_DATA points to the xg_menu_cb_data associated with W. */
+static void
+menu_destroy_callback (w, client_data)
+ GtkWidget *w;
+ gpointer client_data;
+{
+ unref_cl_data ((xg_menu_cb_data*) client_data);
+}
+
+/* Callback called when a menu does a grab or ungrab. That means the
+ menu has been activated or deactivated.
+ Used to start a timer so the small timeout the menus in GTK uses before
+ popping down a menu is seen by Emacs (see xg_process_timeouts above).
+ W is the widget that does the grab (not used).
+ UNGRAB_P is TRUE if this is an ungrab, FALSE if it is a grab.
+ CLIENT_DATA is NULL (not used). */
+static void
+menu_grab_callback (GtkWidget *widget,
+ gboolean ungrab_p,
+ gpointer client_data)
+{
+ /* Keep track of total number of grabs. */
+ static int cnt;
+
+ if (ungrab_p) cnt--;
+ else cnt++;
+
+ if (cnt > 0 && ! xg_timer) xg_start_timer ();
+ else if (cnt == 0 && xg_timer) xg_stop_timer ();
+}
+
+/* Make a GTK widget that contains both UTF8_LABEL and UTF8_KEY (both
+ must be non-NULL) and can be inserted into a menu item.
+
+ Returns the GtkHBox. */
+static GtkWidget *
+make_widget_for_menu_item (utf8_label, utf8_key)
+ char *utf8_label;
+ char *utf8_key;
+{
+ GtkWidget *wlbl;
+ GtkWidget *wkey;
+ GtkWidget *wbox;
+
+ wbox = gtk_hbox_new (FALSE, 0);
+ wlbl = gtk_label_new_with_mnemonic (utf8_label);
+ wkey = gtk_label_new (utf8_key);
+
+ gtk_misc_set_alignment (GTK_MISC (wlbl), 0.0, 0.5);
+ gtk_misc_set_alignment (GTK_MISC (wkey), 0.0, 0.5);
+
+ gtk_box_pack_start (GTK_BOX (wbox), wlbl, TRUE, TRUE, 0);
+ gtk_box_pack_start (GTK_BOX (wbox), wkey, FALSE, FALSE, 0);
+
+ gtk_widget_set_name (wlbl, MENU_ITEM_NAME);
+ gtk_widget_set_name (wkey, MENU_ITEM_NAME);
+
+ return wbox;
+}
+
+/* Make and return a menu item widget with the key to the right.
+ UTF8_LABEL is the text for the menu item (GTK uses UTF8 internally).
+ UTF8_KEY is the text representing the key binding.
+ ITEM is the widget_value describing the menu item.
+
+ GROUP is an in/out parameter. If the menu item to be created is not
+ part of any radio menu group, *GROUP contains NULL on entry and exit.
+ If the menu item to be created is part of a radio menu group, on entry
+ *GROUP contains the group to use, or NULL if this is the first item
+ in the group. On exit, *GROUP contains the radio item group.
+
+ Unfortunately, keys don't line up as nicely as in Motif,
+ but the MacOS X version doesn't either, so I guess that is OK. */
+static GtkWidget *
+make_menu_item (utf8_label, utf8_key, item, group)
+ char *utf8_label;
+ char *utf8_key;
+ widget_value *item;
+ GSList **group;
+{
+ GtkWidget *w;
+ GtkWidget *wtoadd = 0;
+
+ if (utf8_key)
+ wtoadd = make_widget_for_menu_item (utf8_label, utf8_key);
+
+ if (item->button_type == BUTTON_TYPE_TOGGLE)
+ {
+ *group = NULL;
+ if (utf8_key) w = gtk_check_menu_item_new ();
+ else w = gtk_check_menu_item_new_with_mnemonic (utf8_label);
+ gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), item->selected);
+ }
+ else if (item->button_type == BUTTON_TYPE_RADIO)
+ {
+ if (utf8_key) w = gtk_radio_menu_item_new (*group);
+ else w = gtk_radio_menu_item_new_with_mnemonic (*group, utf8_label);
+ *group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (w));
+ if (item->selected)
+ gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), TRUE);
+ }
+ else
+ {
+ *group = NULL;
+ if (utf8_key) w = gtk_menu_item_new ();
+ else w = gtk_menu_item_new_with_mnemonic (utf8_label);
+ }
+
+ if (wtoadd) gtk_container_add (GTK_CONTAINER (w), wtoadd);
+ if (! item->enabled) gtk_widget_set_sensitive (w, FALSE);
+
+ return w;
+}
+
+/* Return non-zero if NAME specifies a separator (GTK only has one
+ separator type) */
+static int
+xg_separator_p (char *name)
+{
+ return strcmp (name, "--") == 0
+ || strcmp (name, "--:") == 0
+ || strcmp (name, "---") == 0;
+}
+
+GtkWidget *xg_did_tearoff;
+
+/* Callback invoked when a detached menu window is removed. Here we
+ delete the popup menu.
+ WIDGET is the top level window that is removed (the parent of the menu).
+ EVENT is the event that triggers the window removal.
+ CLIENT_DATA points to the menu that is detached.
+
+ Returns TRUE to tell GTK to stop processing this event. */
+static gboolean
+tearoff_remove (widget, event, client_data)
+ GtkWidget *widget;
+ GdkEvent *event;
+ gpointer client_data;
+{
+ gtk_widget_destroy (GTK_WIDGET (client_data));
+ return TRUE;
+}
+
+/* Callback invoked when a menu is detached. It sets the xg_did_tearoff
+ variable.
+ WIDGET is the GtkTearoffMenuItem.
+ CLIENT_DATA is not used. */
+static void
+tearoff_activate (widget, client_data)
+ GtkWidget *widget;
+ gpointer client_data;
+{
+ GtkWidget *menu = gtk_widget_get_parent (widget);
+ if (! gtk_menu_get_tearoff_state (GTK_MENU (menu)))
+ return;
+
+ xg_did_tearoff = menu;
+}
+
+/* If a detach of a popup menu is done, this function should be called
+ to keep the menu around until the detached window is removed.
+ MENU is the top level menu for the popup,
+ SUBMENU is the menu that got detached (that is MENU or a
+ submenu of MENU), see the xg_did_tearoff variable. */
+void
+xg_keep_popup (menu, submenu)
+ GtkWidget *menu;
+ GtkWidget *submenu;
+{
+ GtkWidget *p;
+
+ /* Find the top widget for the detached menu. */
+ p = gtk_widget_get_toplevel (submenu);
+
+ /* Delay destroying the menu until the detached menu is removed. */
+ g_signal_connect (G_OBJECT (p), "unmap_event",
+ G_CALLBACK (tearoff_remove), menu);
+}
+
+int xg_debug = 0;
+
+/* Create a menu item widget, and connect the callbacks.
+ ITEM decribes the menu item.
+ F is the frame the created menu belongs to.
+ SELECT_CB is the callback to use when a menu item is selected.
+ HIGHLIGHT_CB is the callback to call when entering/leaving menu items.
+ CL_DATA points to the callback data to be used for this menu.
+ GROUP is an in/out parameter. If the menu item to be created is not
+ part of any radio menu group, *GROUP contains NULL on entry and exit.
+ If the menu item to be created is part of a radio menu group, on entry
+ *GROUP contains the group to use, or NULL if this is the first item
+ in the group. On exit, *GROUP contains the radio item group.
+
+ Returns the created GtkWidget. */
+static GtkWidget *
+xg_create_one_menuitem (item, f, select_cb, highlight_cb, cl_data, group)
+ widget_value *item;
+ FRAME_PTR f;
+ GCallback select_cb;
+ GCallback highlight_cb;
+ xg_menu_cb_data *cl_data;
+ GSList **group;
+{
+ char *utf8_label;
+ char *utf8_key;
+ GtkWidget *w;
+ xg_menu_item_cb_data *cb_data;
+
+ utf8_label = get_utf8_string (item->name);
+ utf8_key = get_utf8_string (item->key);
+
+ w = make_menu_item (utf8_label, utf8_key, item, group);
+
+ if (utf8_label && utf8_label != item->name) g_free (utf8_label);
+ if (utf8_key && utf8_key != item->key) g_free (utf8_key);
+
+ cb_data = xmalloc (sizeof (xg_menu_item_cb_data));
+
+ xg_list_insert (&xg_menu_item_cb_list, &cb_data->ptrs);
+
+ cb_data->unhighlight_id = cb_data->highlight_id = cb_data->select_id = 0;
+ cb_data->help = item->help;
+ cb_data->cl_data = cl_data;
+ cb_data->call_data = item->call_data;
+
+ g_signal_connect (G_OBJECT (w),
+ "destroy",
+ G_CALLBACK (menuitem_destroy_callback),
+ cb_data);
+
+ /* Put cb_data in widget, so we can get at it when modifying menubar */
+ g_object_set_data (G_OBJECT (w), XG_ITEM_DATA, cb_data);
+
+ /* final item, not a submenu */
+ if (item->call_data && ! item->contents)
+ {
+ if (select_cb)
+ cb_data->select_id
+ = g_signal_connect (G_OBJECT (w), "activate", select_cb, cb_data);
+ }
+
+ if (! NILP (item->help) && highlight_cb)
+ {
+ /* We use enter/leave notify instead of select/deselect because
+ select/deselect doesn't go well with detached menus. */
+ cb_data->highlight_id
+ = g_signal_connect (G_OBJECT (w),
+ "enter-notify-event",
+ G_CALLBACK (menuitem_highlight_callback),
+ cb_data);
+ cb_data->unhighlight_id
+ = g_signal_connect (G_OBJECT (w),
+ "leave-notify-event",
+ G_CALLBACK (menuitem_highlight_callback),
+ cb_data);
+ }
+
+ return w;
+}
+
+/* Create a full menu tree specified by DATA.
+ F is the frame the created menu belongs to.
+ SELECT_CB is the callback to use when a menu item is selected.
+ DEACTIVATE_CB is the callback to use when a sub menu is not shown anymore.
+ HIGHLIGHT_CB is the callback to call when entering/leaving menu items.
+ POP_UP_P is non-zero if we shall create a popup menu.
+ MENU_BAR_P is non-zero if we shall create a menu bar.
+ ADD_TEAROFF_P is non-zero if we shall add a teroff menu item. Ignored
+ if MENU_BAR_P is non-zero.
+ TOPMENU is the topmost GtkWidget that others shall be placed under.
+ It may be NULL, in that case we create the appropriate widget
+ (menu bar or menu item depending on POP_UP_P and MENU_BAR_P)
+ CL_DATA is the callback data we shall use for this menu, or NULL
+ if we haven't set the first callback yet.
+ NAME is the name to give to the top level menu if this function
+ creates it. May be NULL to not set any name.
+
+ Returns the top level GtkWidget. This is TOPLEVEL if TOPLEVEL is
+ not NULL.
+
+ This function calls itself to create submenus. */
+
+static GtkWidget *
+create_menus (data, f, select_cb, deactivate_cb, highlight_cb,
+ pop_up_p, menu_bar_p, add_tearoff_p, topmenu, cl_data, name)
+ widget_value *data;
+ FRAME_PTR f;
+ GCallback select_cb;
+ GCallback deactivate_cb;
+ GCallback highlight_cb;
+ int pop_up_p;
+ int menu_bar_p;
+ int add_tearoff_p;
+ GtkWidget *topmenu;
+ xg_menu_cb_data *cl_data;
+ char *name;
+{
+ widget_value *item;
+ GtkWidget *wmenu = topmenu;
+ GSList *group = NULL;
+
+ if (! topmenu)
+ {
+ if (! menu_bar_p) wmenu = gtk_menu_new ();
+ else wmenu = gtk_menu_bar_new ();
+
+ /* Put cl_data on the top menu for easier access. */
+ cl_data = make_cl_data (cl_data, f, highlight_cb);
+ g_object_set_data (G_OBJECT (wmenu), XG_FRAME_DATA, (gpointer)cl_data);
+ g_signal_connect (G_OBJECT (wmenu), "destroy",
+ G_CALLBACK (menu_destroy_callback), cl_data);
+
+ if (name)
+ gtk_widget_set_name (wmenu, name);
+
+ if (deactivate_cb)
+ g_signal_connect (G_OBJECT (wmenu),
+ "deactivate", deactivate_cb, 0);
+
+ g_signal_connect (G_OBJECT (wmenu),
+ "grab-notify", G_CALLBACK (menu_grab_callback), 0);
+ }
+
+ if (! menu_bar_p && add_tearoff_p)
+ {
+ GtkWidget *tearoff = gtk_tearoff_menu_item_new ();
+ gtk_menu_shell_append (GTK_MENU_SHELL (wmenu), tearoff);
+
+ g_signal_connect (G_OBJECT (tearoff), "activate",
+ G_CALLBACK (tearoff_activate), 0);
+ }
+
+ for (item = data; item; item = item->next)
+ {
+ GtkWidget *w;
+
+ if (pop_up_p && !item->contents && !item->call_data
+ && !xg_separator_p (item->name))
+ {
+ char *utf8_label;
+ /* A title for a popup. We do the same as GTK does when
+ creating titles, but it does not look good. */
+ group = NULL;
+ utf8_label = get_utf8_string (item->name);
+
+ gtk_menu_set_title (GTK_MENU (wmenu), utf8_label);
+ w = gtk_menu_item_new_with_mnemonic (utf8_label);
+ gtk_widget_set_sensitive (w, FALSE);
+ if (utf8_label && utf8_label != item->name) g_free (utf8_label);
+ }
+ else if (xg_separator_p (item->name))
+ {
+ group = NULL;
+ /* GTK only have one separator type. */
+ w = gtk_separator_menu_item_new ();
+ }
+ else
+ {
+ w = xg_create_one_menuitem (item,
+ f,
+ item->contents ? 0 : select_cb,
+ highlight_cb,
+ cl_data,
+ &group);
+
+ if (item->contents)
+ {
+ GtkWidget *submenu = create_menus (item->contents,
+ f,
+ select_cb,
+ deactivate_cb,
+ highlight_cb,
+ 0,
+ 0,
+ 1,
+ 0,
+ cl_data,
+ 0);
+ gtk_menu_item_set_submenu (GTK_MENU_ITEM (w), submenu);
+ }
+
+ /* Assume "Help" is the last menu in the menubar. */
+ if (menu_bar_p && ! item->next)
+ gtk_menu_item_set_right_justified (GTK_MENU_ITEM (w), TRUE);
+ }
+
+ gtk_menu_shell_append (GTK_MENU_SHELL (wmenu), w);
+ gtk_widget_set_name (w, MENU_ITEM_NAME);
+ }
+
+ return wmenu;
+}
+
+/* Create a menubar, popup menu or dialog, depending on the TYPE argument.
+ TYPE can be "menubar", "popup" for popup menu, or "dialog" for a dialog
+ with some text and buttons.
+ F is the frame the created item belongs to.
+ NAME is the name to use for the top widget.
+ VAL is a widget_value structure describing items to be created.
+ SELECT_CB is the callback to use when a menu item is selected or
+ a dialog button is pressed.
+ DEACTIVATE_CB is the callback to use when an item is deactivated.
+ For a menu, when a sub menu is not shown anymore, for a dialog it is
+ called when the dialog is popped down.
+ HIGHLIGHT_CB is the callback to call when entering/leaving menu items.
+
+ Returns the widget created. */
+GtkWidget *
+xg_create_widget (type, name, f, val,
+ select_cb, deactivate_cb, highlight_cb)
+ char *type;
+ char *name;
+ FRAME_PTR f;
+ widget_value *val;
+ GCallback select_cb;
+ GCallback deactivate_cb;
+ GCallback highlight_cb;
+{
+ GtkWidget *w = 0;
+ if (strcmp (type, "dialog") == 0)
+ {
+ w = create_dialog (val, select_cb, deactivate_cb);
+ gtk_window_set_transient_for (GTK_WINDOW (w),
+ GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)));
+ gtk_window_set_destroy_with_parent (GTK_WINDOW (w), TRUE);
+
+ if (w)
+ gtk_widget_set_name (w, "emacs-dialog");
+ }
+ else if (strcmp (type, "menubar") == 0 || strcmp (type, "popup") == 0)
+ {
+ w = create_menus (val->contents,
+ f,
+ select_cb,
+ deactivate_cb,
+ highlight_cb,
+ strcmp (type, "popup") == 0,
+ strcmp (type, "menubar") == 0,
+ 1,
+ 0,
+ 0,
+ name);
+
+ /* Set the cursor to an arrow for popup menus when they are mapped.
+ This is done by default for menu bar menus. */
+ if (strcmp (type, "popup") == 0)
+ {
+ /* Must realize so the GdkWindow inside the widget is created. */
+ gtk_widget_realize (w);
+ xg_set_cursor (w, &xg_left_ptr_cursor);
+ }
+ }
+ else
+ {
+ fprintf (stderr, "bad type in xg_create_widget: %s, doing nothing\n",
+ type);
+ }
+
+ return w;
+}
+
+static const char *
+xg_get_menu_item_label (witem)
+ GtkMenuItem *witem;
+{
+ GtkLabel *wlabel = GTK_LABEL (gtk_bin_get_child (GTK_BIN (witem)));
+ return gtk_label_get_label (wlabel);
+}
+
+static int
+xg_item_label_same_p (witem, label)
+ GtkMenuItem *witem;
+ char *label;
+{
+ int is_same;
+ char *utf8_label = get_utf8_string (label);
+
+ is_same = strcmp (utf8_label, xg_get_menu_item_label (witem)) == 0;
+ if (utf8_label != label) g_free (utf8_label);
+
+ return is_same;
+}
+
+/* Remove widgets in LIST from container WCONT. */
+static void
+remove_from_container (wcont, list)
+ GtkWidget *wcont;
+ GList *list;
+{
+ /* We must copy list because gtk_container_remove changes it. */
+ GList *clist = g_list_copy (list);
+ GList *iter;
+
+ for (iter = clist; iter; iter = g_list_next (iter))
+ {
+ GtkWidget *w = GTK_WIDGET (iter->data);
+
+ /* Add a ref to w so we can explicitly destroy it later. */
+ gtk_widget_ref (w);
+ gtk_container_remove (GTK_CONTAINER (wcont), w);
+
+ /* If there is a menu under this widget that has been detached,
+ there is a reference to it, and just removing w from the
+ container does not destroy the submenu. By explicitly
+ destroying w we make sure the submenu is destroyed, thus
+ removing the detached window also if there was one. */
+ gtk_widget_destroy (w);
+ }
+ g_list_free (clist);
+}
+
+/* Update the top level names in MENUBAR (i.e. not submenus).
+ F is the frame the menu bar belongs to.
+ LIST is a list with the current menu bar names (menu item widgets).
+ VAL describes what the menu bar shall look like after the update.
+ SELECT_CB is the callback to use when a menu item is selected.
+ HIGHLIGHT_CB is the callback to call when entering/leaving menu items.
+
+ This function calls itself to walk through the menu bar names. */
+static void
+xg_update_menubar (menubar, f, list, val, select_cb, highlight_cb, cl_data)
+ GtkWidget *menubar;
+ FRAME_PTR f;
+ GList *list;
+ widget_value *val;
+ GCallback select_cb;
+ GCallback highlight_cb;
+ xg_menu_cb_data *cl_data;
+{
+ if (! list && ! val)
+ return;
+ else if (list && ! val)
+ {
+ /* Item(s) have been removed. Remove all remaining items from list. */
+ remove_from_container (menubar, list);
+
+ /* All updated. */
+ val = 0;
+ list = 0;
+ }
+ else if (! list && val)
+ {
+ /* Item(s) added. Add all new items in one call. */
+ create_menus (val, f, select_cb, 0, highlight_cb,
+ 0, 1, 0, menubar, cl_data, 0);
+
+ /* All updated. */
+ val = 0;
+ list = 0;
+ }
+ /* Below this neither list or val is NULL */
+ else if (xg_item_label_same_p (GTK_MENU_ITEM (list->data), val->name))
+ {
+ /* This item is still the same, check next item. */
+ val = val->next;
+ list = g_list_next (list);
+ }
+ else /* This item is changed. */
+ {
+ GtkMenuItem *witem = GTK_MENU_ITEM (list->data);
+ GtkMenuItem *witem2 = 0;
+ int pos = 0;
+ int val_in_menubar = 0;
+ int list_in_new_menubar = 0;
+ GList *list2;
+ GList *iter;
+ widget_value *cur;
+
+
+ /* Get position number for witem. */
+ list2 = gtk_container_get_children (GTK_CONTAINER (menubar));
+ for (iter = list2; iter; iter = g_list_next (iter))
+ {
+ if (list->data == iter->data) break;
+ ++pos;
+ }
+
+ /* See if the changed entry (val) is present later in the menu bar */
+ for (iter = g_list_next (list);
+ iter && ! val_in_menubar;
+ iter = g_list_next (iter))
+ {
+ witem2 = GTK_MENU_ITEM (iter->data);
+ val_in_menubar = xg_item_label_same_p (witem2, val->name);
+ }
+
+ /* See if the current entry (list) is present later in the
+ specification for the new menu bar. */
+ for (cur = val; cur && ! list_in_new_menubar; cur = cur->next)
+ list_in_new_menubar = xg_item_label_same_p (witem, cur->name);
+
+ if (val_in_menubar && ! list_in_new_menubar)
+ {
+ /* This corresponds to:
+ Current: A B C
+ New: A C
+ Remove B. */
+
+ gtk_widget_ref (GTK_WIDGET (witem));
+ gtk_container_remove (GTK_CONTAINER (menubar), GTK_WIDGET (witem));
+ gtk_widget_destroy (GTK_WIDGET (witem));
+
+ /* Must get new list since the old changed. */
+ list = gtk_container_get_children (GTK_CONTAINER (menubar));
+ while (pos-- > 0) list = g_list_next (list);
+ }
+ else if (! val_in_menubar && ! list_in_new_menubar)
+ {
+ /* This corresponds to:
+ Current: A B C
+ New: A X C
+ Rename B to X. This might seem to be a strange thing to do,
+ since if there is a menu under B it will be totally wrong for X.
+ But consider editing a C file. Then there is a C-mode menu
+ (corresponds to B above).
+ If then doing C-x C-f the minibuf menu (X above) replaces the
+ C-mode menu. When returning from the minibuffer, we get
+ back the C-mode menu. Thus we do:
+ Rename B to X (C-mode to minibuf menu)
+ Rename X to B (minibuf to C-mode menu).
+ If the X menu hasn't been invoked, the menu under B
+ is up to date when leaving the minibuffer. */
+ GtkLabel *wlabel = GTK_LABEL (gtk_bin_get_child (GTK_BIN (witem)));
+ char *utf8_label = get_utf8_string (val->name);
+
+ gtk_label_set_text_with_mnemonic (wlabel, utf8_label);
+
+ list = g_list_next (list);
+ val = val->next;
+ }
+ else if (! val_in_menubar && list_in_new_menubar)
+ {
+ /* This corresponds to:
+ Current: A B C
+ New: A X B C
+ Insert X. */
+
+ GList *group = 0;
+ GtkWidget *w = xg_create_one_menuitem (val,
+ f,
+ select_cb,
+ highlight_cb,
+ cl_data,
+ &group);
+
+ gtk_widget_set_name (w, MENU_ITEM_NAME);
+ gtk_menu_shell_insert (GTK_MENU_SHELL (menubar), w, pos);
+
+ list = gtk_container_get_children (GTK_CONTAINER (menubar));
+ while (pos-- > 0) list = g_list_next (list);
+ list = g_list_next (list);
+ val = val->next;
+ }
+ else /* if (val_in_menubar && list_in_new_menubar) */
+ {
+ /* This corresponds to:
+ Current: A B C
+ New: A C B
+ Move C before B */
+
+ gtk_widget_ref (GTK_WIDGET (witem2));
+ gtk_container_remove (GTK_CONTAINER (menubar), GTK_WIDGET (witem2));
+ gtk_menu_shell_insert (GTK_MENU_SHELL (menubar),
+ GTK_WIDGET (witem2), pos);
+ gtk_widget_unref (GTK_WIDGET (witem2));
+
+ val = val->next;
+ list = gtk_container_get_children (GTK_CONTAINER (menubar));
+ while (pos-- > 0) list = g_list_next (list);
+ list = g_list_next (list);
+ }
+
+ }
+
+ /* Update the rest of the menu bar. */
+ xg_update_menubar (menubar, f, list, val, select_cb, highlight_cb, cl_data);
+}
+
+/* Update the menu item W so it corresponds to VAL.
+ SELECT_CB is the callback to use when a menu item is selected.
+ HIGHLIGHT_CB is the callback to call when entering/leaving menu items.
+ CL_DATA is the data to set in the widget for menu invokation. */
+static void
+xg_update_menu_item (val, w, select_cb, highlight_cb, cl_data)
+ widget_value *val;
+ GtkWidget *w;
+ GCallback select_cb;
+ GCallback highlight_cb;
+ xg_menu_cb_data *cl_data;
+{
+ GtkWidget *wchild;
+ GtkLabel *wlbl = 0;
+ GtkLabel *wkey = 0;
+ char *utf8_label;
+ char *utf8_key;
+ xg_menu_item_cb_data *cb_data;
+
+ wchild = gtk_bin_get_child (GTK_BIN (w));
+ utf8_label = get_utf8_string (val->name);
+ utf8_key = get_utf8_string (val->key);
+
+ /* See if W is a menu item with a key. See make_menu_item above. */
+ if (GTK_IS_HBOX (wchild))
+ {
+ GList *list = gtk_container_get_children (GTK_CONTAINER (wchild));
+
+ wlbl = GTK_LABEL (list->data);
+ wkey = GTK_LABEL (list->next->data);
+ if (! utf8_key)
+ {
+ /* Remove the key and keep just the label. */
+ gtk_widget_ref (GTK_WIDGET (wlbl));
+ gtk_container_remove (GTK_CONTAINER (w), wchild);
+ gtk_container_add (GTK_CONTAINER (w), GTK_WIDGET (wlbl));
+ wkey = 0;
+ }
+ }
+ else /* Just a label. */
+ {
+ wlbl = GTK_LABEL (wchild);
+
+ /* Check if there is now a key. */
+ if (utf8_key)
+ {
+ GtkWidget *wtoadd = make_widget_for_menu_item (utf8_label, utf8_key);
+ GList *list = gtk_container_get_children (GTK_CONTAINER (wtoadd));
+ wlbl = GTK_LABEL (list->data);
+ wkey = GTK_LABEL (list->next->data);
+
+ gtk_container_remove (GTK_CONTAINER (w), wchild);
+ gtk_container_add (GTK_CONTAINER (w), wtoadd);
+ }
+ }
+
+ if (utf8_key && strcmp (utf8_key, gtk_label_get_label (wkey)) != 0)
+ gtk_label_set_text (wkey, utf8_key);
+
+ if (strcmp (utf8_label, gtk_label_get_label (wlbl)) != 0)
+ gtk_label_set_text_with_mnemonic (wlbl, utf8_label);
+
+ if (utf8_key != val->key) g_free (utf8_key);
+ if (utf8_label != val->name) g_free (utf8_label);
+
+ if (! val->enabled && GTK_WIDGET_SENSITIVE (w))
+ gtk_widget_set_sensitive (w, FALSE);
+ else if (val->enabled && ! GTK_WIDGET_SENSITIVE (w))
+ gtk_widget_set_sensitive (w, TRUE);
+
+ cb_data = (xg_menu_item_cb_data*) g_object_get_data (G_OBJECT (w),
+ XG_ITEM_DATA);
+ if (cb_data)
+ {
+ cb_data->call_data = val->call_data;
+ cb_data->help = val->help;
+ cb_data->cl_data = cl_data;
+
+ /* We assume the callback functions don't change. */
+ if (val->call_data && ! val->contents)
+ {
+ /* This item shall have a select callback. */
+ if (! cb_data->select_id)
+ cb_data->select_id
+ = g_signal_connect (G_OBJECT (w), "activate",
+ select_cb, cb_data);
+ }
+ else if (cb_data->select_id)
+ {
+ g_signal_handler_disconnect (w, cb_data->select_id);
+ cb_data->select_id = 0;
+ }
+
+ if (NILP (cb_data->help))
+ {
+ /* Shall not have help. Remove if any existed previously. */
+ if (cb_data->highlight_id)
+ {
+ g_signal_handler_disconnect (G_OBJECT (w),
+ cb_data->highlight_id);
+ cb_data->highlight_id = 0;
+ }
+ if (cb_data->unhighlight_id)
+ {
+ g_signal_handler_disconnect (G_OBJECT (w),
+ cb_data->unhighlight_id);
+ cb_data->unhighlight_id = 0;
+ }
+ }
+ else if (! cb_data->highlight_id && highlight_cb)
+ {
+ /* Have help now, but didn't previously. Add callback. */
+ cb_data->highlight_id
+ = g_signal_connect (G_OBJECT (w),
+ "enter-notify-event",
+ G_CALLBACK (menuitem_highlight_callback),
+ cb_data);
+ cb_data->unhighlight_id
+ = g_signal_connect (G_OBJECT (w),
+ "leave-notify-event",
+ G_CALLBACK (menuitem_highlight_callback),
+ cb_data);
+ }
+ }
+}
+
+/* Update the toggle menu item W so it corresponds to VAL. */
+static void
+xg_update_toggle_item (val, w)
+ widget_value *val;
+ GtkWidget *w;
+{
+ gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), val->selected);
+}
+
+/* Update the radio menu item W so it corresponds to VAL. */
+static void
+xg_update_radio_item (val, w)
+ widget_value *val;
+ GtkWidget *w;
+{
+ gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), val->selected);
+}
+
+/* Update the sub menu SUBMENU and all its children so it corresponds to VAL.
+ SUBMENU may be NULL, in that case a new menu is created.
+ F is the frame the menu bar belongs to.
+ VAL describes the contents of the menu bar.
+ SELECT_CB is the callback to use when a menu item is selected.
+ DEACTIVATE_CB is the callback to use when a sub menu is not shown anymore.
+ HIGHLIGHT_CB is the callback to call when entering/leaving menu items.
+ CL_DATA is the call back data to use for any newly created items.
+
+ Returns the updated submenu widget, that is SUBMENU unless SUBMENU
+ was NULL. */
+
+static GtkWidget *
+xg_update_submenu (submenu, f, val,
+ select_cb, deactivate_cb, highlight_cb, cl_data)
+ GtkWidget *submenu;
+ FRAME_PTR f;
+ widget_value *val;
+ GCallback select_cb;
+ GCallback deactivate_cb;
+ GCallback highlight_cb;
+ xg_menu_cb_data *cl_data;
+{
+ GtkWidget *newsub = submenu;
+ GList *list = 0;
+ GList *iter;
+ widget_value *cur;
+ int has_tearoff_p = 0;
+ GList *first_radio = 0;
+
+ if (submenu)
+ list = gtk_container_get_children (GTK_CONTAINER (submenu));
+
+ for (cur = val, iter = list;
+ cur && iter;
+ iter = g_list_next (iter), cur = cur->next)
+ {
+ GtkWidget *w = GTK_WIDGET (iter->data);
+
+ /* Skip tearoff items, they have no counterpart in val. */
+ if (GTK_IS_TEAROFF_MENU_ITEM (w))
+ {
+ has_tearoff_p = 1;
+ iter = g_list_next (iter);
+ if (iter) w = GTK_WIDGET (iter->data);
+ else break;
+ }
+
+ /* Remember first radio button in a group. If we get a mismatch in
+ a radio group we must rebuild the whole group so that the connections
+ in GTK becomes correct. */
+ if (cur->button_type == BUTTON_TYPE_RADIO && ! first_radio)
+ first_radio = iter;
+ else if (cur->button_type != BUTTON_TYPE_RADIO
+ && ! GTK_IS_RADIO_MENU_ITEM (w))
+ first_radio = 0;
+
+ if (GTK_IS_SEPARATOR_MENU_ITEM (w))
+ {
+ if (! xg_separator_p (cur->name))
+ break;
+ }
+ else if (GTK_IS_CHECK_MENU_ITEM (w))
+ {
+ if (cur->button_type != BUTTON_TYPE_TOGGLE)
+ break;
+ xg_update_toggle_item (cur, w);
+ xg_update_menu_item (cur, w, select_cb, highlight_cb, cl_data);
+ }
+ else if (GTK_IS_RADIO_MENU_ITEM (w))
+ {
+ if (cur->button_type != BUTTON_TYPE_RADIO)
+ break;
+ xg_update_radio_item (cur, w);
+ xg_update_menu_item (cur, w, select_cb, highlight_cb, cl_data);
+ }
+ else if (GTK_IS_MENU_ITEM (w))
+ {
+ GtkMenuItem *witem = GTK_MENU_ITEM (w);
+ GtkWidget *sub;
+
+ if (cur->button_type != BUTTON_TYPE_NONE ||
+ xg_separator_p (cur->name))
+ break;
+
+ xg_update_menu_item (cur, w, select_cb, highlight_cb, cl_data);
+
+ sub = gtk_menu_item_get_submenu (witem);
+ if (sub && ! cur->contents)
+ {
+ /* Not a submenu anymore. */
+ gtk_widget_ref (sub);
+ gtk_menu_item_remove_submenu (witem);
+ gtk_widget_destroy (sub);
+ }
+ else if (cur->contents)
+ {
+ GtkWidget *nsub;
+
+ nsub = xg_update_submenu (sub, f, cur->contents,
+ select_cb, deactivate_cb,
+ highlight_cb, cl_data);
+
+ /* If this item just became a submenu, we must set it. */
+ if (nsub != sub)
+ gtk_menu_item_set_submenu (witem, nsub);
+ }
+ }
+ else
+ {
+ /* Structural difference. Remove everything from here and down
+ in SUBMENU. */
+ break;
+ }
+ }
+
+ /* Remove widgets from first structual change. */
+ if (iter)
+ {
+ /* If we are adding new menu items below, we must remove from
+ first radio button so that radio groups become correct. */
+ if (cur && first_radio) remove_from_container (submenu, first_radio);
+ else remove_from_container (submenu, iter);
+ }
+
+ if (cur)
+ {
+ /* More items added. Create them. */
+ newsub = create_menus (cur,
+ f,
+ select_cb,
+ deactivate_cb,
+ highlight_cb,
+ 0,
+ 0,
+ ! has_tearoff_p,
+ submenu,
+ cl_data,
+ 0);
+ }
+
+ return newsub;
+}
+
+/* Update the MENUBAR.
+ F is the frame the menu bar belongs to.
+ VAL describes the contents of the menu bar.
+ If DEEP_P is non-zero, rebuild all but the top level menu names in
+ the MENUBAR. If DEEP_P is zero, just rebuild the names in the menubar.
+ SELECT_CB is the callback to use when a menu item is selected.
+ DEACTIVATE_CB is the callback to use when a sub menu is not shown anymore.
+ HIGHLIGHT_CB is the callback to call when entering/leaving menu items. */
+void
+xg_modify_menubar_widgets (menubar, f, val, deep_p,
+ select_cb, deactivate_cb, highlight_cb)
+ GtkWidget *menubar;
+ FRAME_PTR f;
+ widget_value *val;
+ int deep_p;
+ GCallback select_cb;
+ GCallback deactivate_cb;
+ GCallback highlight_cb;
+{
+ xg_menu_cb_data *cl_data;
+ GList *list = gtk_container_get_children (GTK_CONTAINER (menubar));
+ GList *iter;
+
+ if (! list) return;
+
+ cl_data = (xg_menu_cb_data*) g_object_get_data (G_OBJECT (menubar),
+ XG_FRAME_DATA);
+
+ if (! deep_p)
+ {
+ widget_value *cur = val->contents;
+ xg_update_menubar (menubar, f, list, cur,
+ select_cb, highlight_cb, cl_data);
+ }
+ else
+ {
+ widget_value *cur;
+
+ /* Update all sub menus.
+ We must keep the submenu names (GTK menu item widgets) since the
+ X Window in the XEvent that activates the menu are those widgets. */
+
+ /* Update cl_data, menu_item things in F may have changed. */
+ update_cl_data (cl_data, f, highlight_cb);
+
+ for (cur = val->contents; cur; cur = cur->next)
+ {
+ GtkWidget *sub = 0;
+ GtkWidget *newsub;
+ GtkMenuItem *witem;
+
+ /* Find sub menu that corresponds to val and update it. */
+ for (iter = list ; iter; iter = g_list_next (iter))
+ {
+ witem = GTK_MENU_ITEM (iter->data);
+ if (xg_item_label_same_p (witem, cur->name))
+ {
+ sub = gtk_menu_item_get_submenu (witem);
+ break;
+ }
+ }
+
+ newsub = xg_update_submenu (sub,
+ f,
+ cur->contents,
+ select_cb,
+ deactivate_cb,
+ highlight_cb,
+ cl_data);
+ /* sub may still be NULL. If we just updated non deep and added
+ a new menu bar item, it has no sub menu yet. So we set the
+ newly created sub menu under witem. */
+ if (newsub != sub)
+ gtk_menu_item_set_submenu (witem, newsub);
+
+ }
+ }
+
+ gtk_widget_show_all (menubar);
+}
+
+/* Recompute all the widgets of frame F, when the menu bar has been
+ changed. Value is non-zero if widgets were updated. */
+
+int
+xg_update_frame_menubar (f)
+ FRAME_PTR f;
+{
+ struct x_output *x = f->output_data.x;
+ GtkRequisition req;
+
+ if (!x->menubar_widget || GTK_WIDGET_MAPPED (x->menubar_widget))
+ return 0;
+
+ BLOCK_INPUT;
+
+ gtk_box_pack_start (GTK_BOX (x->vbox_widget), x->menubar_widget,
+ FALSE, FALSE, 0);
+ gtk_box_reorder_child (GTK_BOX (x->vbox_widget), x->menubar_widget, 0);
+
+ gtk_widget_show_all (x->menubar_widget);
+ gtk_widget_size_request (x->menubar_widget, &req);
+
+ FRAME_MENUBAR_HEIGHT (f) = req.height;
+
+ /* The height has changed, resize outer widget and set columns
+ rows to what we had before adding the menu bar. */
+ xg_resize_outer_widget (f, FRAME_WIDTH (f), FRAME_HEIGHT (f));
+
+ SET_FRAME_GARBAGED (f);
+ UNBLOCK_INPUT;
+}
+
+/* Get rid of the menu bar of frame F, and free its storage.
+ This is used when deleting a frame, and when turning off the menu bar. */
+
+void
+free_frame_menubar (f)
+ FRAME_PTR f;
+{
+ struct x_output *x = f->output_data.x;
+
+ if (x->menubar_widget)
+ {
+ BLOCK_INPUT;
+
+ gtk_container_remove (GTK_CONTAINER (x->vbox_widget), x->menubar_widget);
+ /* The menubar and its children shall be deleted when removed from
+ the container. */
+ x->menubar_widget = 0;
+ FRAME_MENUBAR_HEIGHT (f) = 0;
+
+ /* The height has changed, resize outer widget and set columns
+ rows to what we had before removing the menu bar. */
+ xg_resize_outer_widget (f, FRAME_WIDTH (f), FRAME_HEIGHT (f));
+
+ SET_FRAME_GARBAGED (f);
+ UNBLOCK_INPUT;
+ }
+}
+
+
+\f
+/***********************************************************************
+ Scroll bar functions
+ ***********************************************************************/
+
+
+/* Setting scroll bar values invokes the callback. Use this variable
+ to indicate that callback should do nothing. */
+int xg_ignore_gtk_scrollbar;
+
+/* After we send a scroll bar event, x_set_toolkit_scroll_bar_thumb will
+ be called. For some reason that needs to be debugged, it gets called
+ with bad values. Thus, we set this variable to ignore those calls. */
+int xg_ignore_next_thumb;
+
+/* SET_SCROLL_BAR_X_WINDOW assumes the second argument fits in
+ 32 bits. But we want to store pointers, and they may be larger
+ than 32 bits. Keep a mapping from integer index to widget pointers
+ to get around the 32 bit limitation. */
+static struct
+{
+ GtkWidget **widgets;
+ int max_size;
+ int used;
+} id_to_widget = { 0, 0, 0 };
+
+/* Grow this much every time we need to allocate more */
+#define ID_TO_WIDGET_INCR 32
+
+/* Store the widget pointer W in id_to_widget and return the integer index. */
+static int
+xg_store_widget_in_map (w)
+ GtkWidget *w;
+{
+ int i;
+
+ if (id_to_widget.max_size == id_to_widget.used)
+ {
+ int new_size = id_to_widget.max_size + ID_TO_WIDGET_INCR;
+
+ id_to_widget.widgets = xrealloc (id_to_widget.widgets,
+ sizeof (GtkWidget *)*new_size);
+
+ for (i = id_to_widget.max_size; i < new_size; ++i)
+ id_to_widget.widgets[i] = 0;
+ id_to_widget.max_size = new_size;
+ }
+
+ /* Just loop over the array and find a free place. After all,
+ how many scroll bars are we creating? Should be a small number.
+ The check above guarantees we will find a free place. */
+ for (i = 0; i < id_to_widget.max_size; ++i)
+ {
+ if (! id_to_widget.widgets[i])
+ {
+ id_to_widget.widgets[i] = w;
+ ++id_to_widget.used;
+
+ return i;
+ }
+ }
+
+ /* Should never end up here */
+ abort ();
+}
+
+/* Remove pointer at IDX from id_to_widget.
+ Called when scroll bar is destroyed. */
+static void
+xg_remove_widget_from_map (idx)
+ int idx;
+{
+ if (idx < id_to_widget.max_size && id_to_widget.widgets[idx] != 0)
+ {
+ id_to_widget.widgets[idx] = 0;
+ --id_to_widget.used;
+ }
+}
+
+/* Get the widget pointer at IDX from id_to_widget. */
+static GtkWidget *
+xg_get_widget_from_map (idx)
+ int idx;
+{
+ if (idx < id_to_widget.max_size && id_to_widget.widgets[idx] != 0)
+ return id_to_widget.widgets[idx];
+
+ return 0;
+}
+
+/* Callback invoked when scroll bar WIDGET is destroyed.
+ DATA is the index into id_to_widget for WIDGET.
+ We free pointer to last scroll bar value here and remove the index. */
+static void
+xg_gtk_scroll_destroy (widget, data)
+ GtkWidget *widget;
+ gpointer data;
+{
+ gpointer p;
+ int id = (int)data;
+
+ p = g_object_get_data (G_OBJECT (widget), XG_LAST_SB_DATA);
+ if (p) xfree (p);
+ xg_remove_widget_from_map (id);
+}
+
+/* Callback for button press/release events. Used to start timer so that
+ the scroll bar repetition timer in GTK gets handeled.
+ WIDGET is the scroll bar widget the event is for (not used).
+ EVENT contains the event.
+ USER_DATA is 0 (not used).
+
+ Returns FALSE to tell GTK that it shall continue propagate the event
+ to widgets. */
+static gboolean
+scroll_bar_button_cb (widget, event, user_data)
+ GtkWidget *widget;
+ GdkEventButton *event;
+ gpointer user_data;
+{
+ if (event->type == GDK_BUTTON_PRESS && ! xg_timer)
+ xg_start_timer ();
+ else if (event->type == GDK_BUTTON_RELEASE && xg_timer)
+ xg_stop_timer ();
+
+ return FALSE;
+}
+
+/* Create a scroll bar widget for frame F. Store the scroll bar
+ in BAR.
+ SCROLL_CALLBACK is the callback to invoke when the value of the
+ bar changes.
+ SCROLL_BAR_NAME is the name we use for the scroll bar. Can be used
+ to set resources for the widget. */
+void
+xg_create_scroll_bar (f, bar, scroll_callback, scroll_bar_name)
+ FRAME_PTR f;
+ struct scroll_bar *bar;
+ GCallback scroll_callback;
+ char *scroll_bar_name;
+{
+ GtkWidget *wscroll;
+ GtkObject *vadj;
+ int scroll_id;
+
+ /* Page, step increment values are not so important here, they
+ will be corrected in x_set_toolkit_scroll_bar_thumb. */
+ vadj = gtk_adjustment_new (XG_SB_MIN, XG_SB_MIN, XG_SB_MAX,
+ 0.1, 0.1, 0.1);
+
+ wscroll = gtk_vscrollbar_new (GTK_ADJUSTMENT (vadj));
+ gtk_widget_set_name (wscroll, scroll_bar_name);
+ gtk_range_set_update_policy (GTK_RANGE (wscroll), GTK_UPDATE_CONTINUOUS);
+
+ scroll_id = xg_store_widget_in_map (wscroll);
+
+ g_signal_connect (G_OBJECT (vadj),
+ "value-changed",
+ scroll_callback,
+ (gpointer)bar);
+ g_signal_connect (G_OBJECT (wscroll),
+ "destroy",
+ G_CALLBACK (xg_gtk_scroll_destroy),
+ (gpointer)scroll_id);
+
+ /* Connect to button press and button release to detect if any scroll bar
+ has the pointer. */
+ g_signal_connect (G_OBJECT (wscroll),
+ "button-press-event",
+ G_CALLBACK (scroll_bar_button_cb),
+ (gpointer)1);
+ g_signal_connect (G_OBJECT (wscroll),
+ "button-release-event",
+ G_CALLBACK (scroll_bar_button_cb),
+ 0);
+
+ gtk_fixed_put (GTK_FIXED (f->output_data.x->edit_widget),
+ wscroll, 0, 0);
+
+ /* Set the cursor to an arrow. */
+ xg_set_cursor (wscroll, &xg_left_ptr_cursor);
+
+ SET_SCROLL_BAR_X_WINDOW (bar, scroll_id);
+}
+
+/* Make the scroll bar represented by SCROLLBAR_ID visible. */
+void
+xg_show_scroll_bar (scrollbar_id)
+ int scrollbar_id;
+{
+ GtkWidget *w = xg_get_widget_from_map (scrollbar_id);
+ if (w)
+ gtk_widget_show (w);
+}
+
+/* Remove the scroll bar represented by SCROLLBAR_ID from the frame F. */
+void
+xg_remove_scroll_bar (f, scrollbar_id)
+ FRAME_PTR f;
+ int scrollbar_id;
+{
+ GtkWidget *w = xg_get_widget_from_map (scrollbar_id);
+ if (w)
+ {
+ gtk_widget_destroy (w);
+ SET_FRAME_GARBAGED (f);
+ }
+}
+
+
+/* Update the position of the vertical scroll bar represented by SCROLLBAR_ID
+ in frame F.
+ TOP/LEFT are the new pixel positions where the bar shall appear.
+ WIDTH, HEIGHT is the size in pixels the bar shall have. */
+void
+xg_update_scrollbar_pos (f, scrollbar_id, top, left, width, height)
+ FRAME_PTR f;
+ int scrollbar_id;
+ int top;
+ int left;
+ int width;
+ int height;
+{
+ GtkWidget *wscroll = xg_get_widget_from_map (scrollbar_id);
+
+ if (wscroll)
+ {
+ int gheight = max (height, 1);
+
+ gtk_fixed_move (GTK_FIXED (f->output_data.x->edit_widget),
+ wscroll, left, top);
+
+ gtk_widget_set_size_request (wscroll, width, gheight);
+
+ /* Must force out update so wscroll gets the resize.
+ Otherwise, the gdk_window_clear clears the old window size. */
+ gdk_window_process_all_updates ();
+
+ /* The scroll bar doesn't explicitly redraw the whole window
+ when a resize occurs. Since the scroll bar seems to be fixed
+ in width it doesn't fill the space reserved, so we must clear
+ the whole window. */
+ gdk_window_clear (wscroll->window);
+
+ /* Since we are not using a pure gtk event loop, we must force out
+ pending update events with this call. */
+ gdk_window_process_all_updates ();
+
+ SET_FRAME_GARBAGED (f);
+ cancel_mouse_face (f);
+ }
+}
+
+/* Set the thumb size and position of scroll bar BAR. We are currently
+ displaying PORTION out of a whole WHOLE, and our position POSITION. */
+void
+xg_set_toolkit_scroll_bar_thumb (bar, portion, position, whole)
+ struct scroll_bar *bar;
+ int portion, position, whole;
+{
+ GtkWidget *wscroll = xg_get_widget_from_map (SCROLL_BAR_X_WINDOW (bar));
+
+ FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
+
+ BLOCK_INPUT;
+ if (wscroll && ! xg_ignore_next_thumb)
+ {
+ GtkAdjustment *adj;
+ gdouble shown;
+ gdouble top;
+ int size, value;
+
+ adj = gtk_range_get_adjustment (GTK_RANGE (wscroll));
+
+ if (whole <= 0)
+ top = 0, shown = 1;
+ else
+ {
+ shown = (gdouble) portion / whole;
+ top = (gdouble) position / whole;
+ }
+
+ size = shown * whole;
+ size = min (size, whole);
+ size = max (size, 1);
+
+ value = top * whole;
+ value = min (value, whole - size);
+ value = max (value, XG_SB_MIN);
+
+ adj->upper = max (whole, size);
+ adj->page_size = (int)size;
+
+ /* Assume a page increment is about 95% of the page size */
+ adj->page_increment = (int) (0.95*adj->page_size);
+
+ /* Assume all lines are equal. */
+ adj->step_increment = portion / max (1, FRAME_HEIGHT (f));
+
+ /* gtk_range_set_value invokes the callback. Set
+ ignore_gtk_scrollbar to make the callback do nothing */
+ xg_ignore_gtk_scrollbar = 1;
+ gtk_range_set_value (GTK_RANGE (wscroll), (gdouble)value);
+ xg_ignore_gtk_scrollbar = 0;
+ }
+
+ /* Make sure the scroll bar is redrawn with new thumb */
+ gtk_widget_queue_draw (wscroll);
+ gdk_window_process_all_updates ();
+ xg_ignore_next_thumb = 0;
+ UNBLOCK_INPUT;
+}
+
+\f
+/***********************************************************************
+ Tool bar functions
+ ***********************************************************************/
+/* The key for the data we put in the GtkImage widgets. The data is
+ the image used by Emacs. We use this to see if we need to update
+ the GtkImage with a new image. */
+#define XG_TOOL_BAR_IMAGE_DATA "emacs-tool-bar-image"
+
+/* Callback function invoked when a tool bar item is pressed.
+ W is the button widget in the tool bar that got pressed,
+ CLIENT_DATA is an integer that is the index of the button in the
+ tool bar. 0 is the first button. */
+static void
+xg_tool_bar_callback (w, client_data)
+ GtkWidget *w;
+ gpointer client_data;
+{
+ int idx = (int)client_data;
+ FRAME_PTR f = (FRAME_PTR) g_object_get_data (G_OBJECT (w), XG_FRAME_DATA);
+ Lisp_Object key, frame;
+ struct input_event event;
+
+ if (! f || ! f->n_tool_bar_items || NILP (f->tool_bar_items))
+ return;
+
+ idx *= TOOL_BAR_ITEM_NSLOTS;
+
+ key = AREF (f->tool_bar_items, idx + TOOL_BAR_ITEM_KEY);
+ XSETFRAME (frame, f);
+ event.kind = TOOL_BAR_EVENT;
+ event.frame_or_window = frame;
+ event.arg = frame;
+ kbd_buffer_store_event (&event);
+
+ event.kind = TOOL_BAR_EVENT;
+ event.frame_or_window = frame;
+ event.arg = key;
+ event.modifiers = 0; /* These are not available. */
+ kbd_buffer_store_event (&event);
+}
+
+/* This callback is called when a tool bar is detached. We must set
+ the height of the tool bar to zero when this happens so frame sizes
+ are correctly calculated.
+ WBOX is the handle box widget that enables detach/attach of the tool bar.
+ W is the tool bar widget.
+ CLIENT_DATA is a pointer to the frame the tool bar belongs to. */
+static void
+xg_tool_bar_detach_callback (wbox, w, client_data)
+ GtkHandleBox *wbox;
+ GtkWidget *w;
+ gpointer client_data;
+{
+ FRAME_PTR f = (FRAME_PTR) client_data;
+
+ if (f)
+ {
+ /* When detaching a tool bar, not everything dissapear. There are
+ a few pixels left that are used to drop the tool bar back into
+ place. */
+ int bw = gtk_container_get_border_width (GTK_CONTAINER (wbox));
+ FRAME_TOOLBAR_HEIGHT (f) = 2;
+
+ /* The height has changed, resize outer widget and set columns
+ rows to what we had before detaching the tool bar. */
+ xg_resize_outer_widget (f, FRAME_WIDTH (f), FRAME_HEIGHT (f));
+ }
+}
+
+/* This callback is called when a tool bar is reattached. We must set
+ the height of the tool bar when this happens so frame sizes
+ are correctly calculated.
+ WBOX is the handle box widget that enables detach/attach of the tool bar.
+ W is the tool bar widget.
+ CLIENT_DATA is a pointer to the frame the tool bar belongs to. */
+static void
+xg_tool_bar_attach_callback (wbox, w, client_data)
+ GtkHandleBox *wbox;
+ GtkWidget *w;
+ gpointer client_data;
+{
+ FRAME_PTR f = (FRAME_PTR) client_data;
+
+ if (f)
+ {
+ GtkRequisition req;
+
+ gtk_widget_size_request (w, &req);
+ FRAME_TOOLBAR_HEIGHT (f) = req.height;
+
+ /* The height has changed, resize outer widget and set columns
+ rows to what we had before detaching the tool bar. */
+ xg_resize_outer_widget (f, FRAME_WIDTH (f), FRAME_HEIGHT (f));
+ }
+}
+
+/* This callback is called when the mouse enters or leaves a tool bar item.
+ It is used for displaying and hiding the help text.
+ W is the tool bar item, a button.
+ EVENT is either an enter event or leave event.
+ CLIENT_DATA is an integer that is the index of the button in the
+ tool bar. 0 is the first button.
+
+ Returns FALSE to tell GTK to keep processing this event. */
+static gboolean
+xg_tool_bar_help_callback (w, event, client_data)
+ GtkWidget *w;
+ GdkEventCrossing *event;
+ gpointer client_data;
+{
+ int idx = (int)client_data;
+ FRAME_PTR f = (FRAME_PTR) g_object_get_data (G_OBJECT (w), XG_FRAME_DATA);
+ Lisp_Object help, frame;
+
+ if (! GTK_IS_BUTTON (w))
+ {
+ return FALSE;
+ }
+
+ if (! f || ! f->n_tool_bar_items || NILP (f->tool_bar_items))
+ return;
+
+ if (event->type == GDK_ENTER_NOTIFY)
+ {
+ idx *= TOOL_BAR_ITEM_NSLOTS;
+ help = AREF (f->tool_bar_items, idx + TOOL_BAR_ITEM_HELP);
+
+ if (NILP (help))
+ help = AREF (f->tool_bar_items, idx + TOOL_BAR_ITEM_CAPTION);
+ }
+ else
+ help = Qnil;
+
+ XSETFRAME (frame, f);
+ kbd_buffer_store_help_event (frame, help);
+
+ return FALSE;
+}
+
+
+static void
+xg_create_tool_bar (f)
+ FRAME_PTR f;
+{
+ struct x_output *x = f->output_data.x;
+ GtkRequisition req;
+ int vbox_pos = x->menubar_widget ? 1 : 0;
+
+ x->toolbar_widget = gtk_toolbar_new ();
+ x->handlebox_widget = gtk_handle_box_new ();
+ gtk_container_add (GTK_CONTAINER (x->handlebox_widget),
+ x->toolbar_widget);
+
+ gtk_box_pack_start (GTK_BOX (x->vbox_widget), x->handlebox_widget,
+ FALSE, FALSE, 0);
+
+ gtk_box_reorder_child (GTK_BOX (x->vbox_widget), x->handlebox_widget,
+ vbox_pos);
+
+ g_signal_connect (G_OBJECT (x->handlebox_widget), "child-detached",
+ G_CALLBACK (xg_tool_bar_detach_callback), f);
+ g_signal_connect (G_OBJECT (x->handlebox_widget), "child-attached",
+ G_CALLBACK (xg_tool_bar_attach_callback), f);
+
+ gtk_widget_show_all (x->handlebox_widget);
+
+ gtk_widget_size_request (x->toolbar_widget, &req);
+ FRAME_TOOLBAR_HEIGHT (f) = req.height;
+
+ /* The height has changed, resize outer widget and set columns
+ rows to what we had before adding the tool bar. */
+ xg_resize_outer_widget (f, FRAME_WIDTH (f), FRAME_HEIGHT (f));
+
+ SET_FRAME_GARBAGED (f);
+}
+
+void
+update_frame_tool_bar (f)
+ FRAME_PTR f;
+{
+ int i;
+ GtkRequisition old_req, new_req;
+ GList *icon_list;
+ struct x_output *x = f->output_data.x;
+
+ if (! FRAME_GTK_WIDGET (f))
+ return;
+
+ BLOCK_INPUT;
+
+ if (! x->toolbar_widget)
+ xg_create_tool_bar (f);
+
+ gtk_widget_size_request (x->toolbar_widget, &old_req);
+
+ icon_list = gtk_container_get_children (GTK_CONTAINER (x->toolbar_widget));
+
+ for (i = 0; i < f->n_tool_bar_items; ++i)
+ {
+#define PROP(IDX) AREF (f->tool_bar_items, i * TOOL_BAR_ITEM_NSLOTS + (IDX))
+
+ int enabled_p = !NILP (PROP (TOOL_BAR_ITEM_ENABLED_P));
+ int selected_p = !NILP (PROP (TOOL_BAR_ITEM_SELECTED_P));
+ int idx;
+ int img_id;
+ struct image *img;
+ Lisp_Object image;
+ GtkWidget *wicon = icon_list ? GTK_WIDGET (icon_list->data) : 0;
+
+ if (icon_list) icon_list = g_list_next (icon_list);
+
+ /* If image is a vector, choose the image according to the
+ button state. */
+ image = PROP (TOOL_BAR_ITEM_IMAGES);
+ if (VECTORP (image))
+ {
+ if (enabled_p)
+ idx = (selected_p
+ ? TOOL_BAR_IMAGE_ENABLED_SELECTED
+ : TOOL_BAR_IMAGE_ENABLED_DESELECTED);
+ else
+ idx = (selected_p
+ ? TOOL_BAR_IMAGE_DISABLED_SELECTED
+ : TOOL_BAR_IMAGE_DISABLED_DESELECTED);
+
+ xassert (ASIZE (image) >= idx);
+ image = AREF (image, idx);
+ }
+ else
+ idx = -1;
+
+ /* Ignore invalid image specifications. */
+ if (!valid_image_p (image))
+ {
+ if (wicon) gtk_widget_hide (wicon);
+ continue;
+ }
+
+ img_id = lookup_image (f, image);
+ img = IMAGE_FROM_ID (f, img_id);
+
+ if (! wicon)
+ {
+ GdkPixmap *gpix = gdk_pixmap_foreign_new (img->pixmap);
+ GdkBitmap *gmask = img->mask ?
+ (GdkBitmap*) gdk_pixmap_foreign_new (img->mask) : 0;
+
+ GtkWidget *w = gtk_image_new_from_pixmap (gpix, gmask);
+ gtk_toolbar_append_item (GTK_TOOLBAR (x->toolbar_widget),
+ 0, 0, 0,
+ w,
+ GTK_SIGNAL_FUNC (xg_tool_bar_callback),
+ (gpointer)i);
+
+ /* Save the image so we can see if an update is needed when
+ this function is called again. */
+ g_object_set_data (G_OBJECT (w), XG_TOOL_BAR_IMAGE_DATA,
+ (gpointer)img);
+
+ /* We must set sensitive on the button that is the parent
+ of the GtkImage parent. Go upwards until we find the button. */
+ while (! GTK_IS_BUTTON (w))
+ w = gtk_widget_get_parent (w);
+
+ if (w)
+ {
+ /* Save the frame in the button so the xg_tool_bar_callback
+ can get at it. */
+ g_object_set_data (G_OBJECT (w), XG_FRAME_DATA, (gpointer)f);
+ gtk_widget_set_sensitive (w, enabled_p);
+
+ /* Use enter/leave notify to show help. We use the events
+ rather than the GtkButton specific signals "enter" and
+ "leave", so we can have only one callback. The event
+ will tell us what kind of event it is. */
+ g_signal_connect (G_OBJECT (w),
+ "enter-notify-event",
+ G_CALLBACK (xg_tool_bar_help_callback),
+ (gpointer)i);
+ g_signal_connect (G_OBJECT (w),
+ "leave-notify-event",
+ G_CALLBACK (xg_tool_bar_help_callback),
+ (gpointer)i);
+ }
+ }
+ else
+ {
+ /* The child of the tool bar is a button. Inside that button
+ is a vbox. Inside that vbox is the GtkImage. */
+ GtkWidget *wvbox = gtk_bin_get_child (GTK_BIN (wicon));
+ GList *ch = gtk_container_get_children (GTK_CONTAINER (wvbox));
+ GtkImage *wimage = GTK_IMAGE (ch->data);
+ struct image *old_img = g_object_get_data (G_OBJECT (wimage),
+ XG_TOOL_BAR_IMAGE_DATA);
+
+ if (! old_img
+ || old_img->pixmap != img->pixmap
+ || old_img->mask != img->mask)
+ {
+ GdkPixmap *gpix = gdk_pixmap_foreign_new (img->pixmap);
+ GdkBitmap *gmask = img->mask ?
+ (GdkBitmap*) gdk_pixmap_foreign_new (img->mask) : 0;
+
+ gtk_image_set_from_pixmap (wimage, gpix, gmask);
+ }
+
+ g_object_set_data (G_OBJECT (wimage), XG_TOOL_BAR_IMAGE_DATA,
+ (gpointer)img);
+
+ gtk_widget_set_sensitive (wicon, enabled_p);
+ gtk_widget_show (wicon);
+ }
+
+#undef PROP
+ }
+
+ /* Remove buttons not longer needed. We just hide them so they
+ can be reused later on. */
+ while (icon_list)
+ {
+ GtkWidget *w = GTK_WIDGET (icon_list->data);
+ gtk_widget_hide (w);
+ icon_list = g_list_next (icon_list);
+ }
+
+ gtk_widget_size_request (x->toolbar_widget, &new_req);
+ if (old_req.height != new_req.height)
+ {
+ FRAME_TOOLBAR_HEIGHT (f) = new_req.height;
+ xg_resize_outer_widget (f, FRAME_WIDTH (f), FRAME_HEIGHT (f));
+ }
+
+ /* Must force out update so changed images gets redrawn. */
+ gdk_window_process_all_updates ();
+
+ UNBLOCK_INPUT;
+}
+
+void
+free_frame_tool_bar (f)
+ FRAME_PTR f;
+{
+ struct x_output *x = f->output_data.x;
+
+ if (x->toolbar_widget)
+ {
+ fprintf(stderr, "Remove toolbar\n");
+ BLOCK_INPUT;
+ gtk_container_remove (GTK_CONTAINER (x->vbox_widget),
+ x->handlebox_widget);
+ x->toolbar_widget = 0;
+ x->handlebox_widget = 0;
+ FRAME_TOOLBAR_HEIGHT (f) = 0;
+
+ /* The height has changed, resize outer widget and set columns
+ rows to what we had before removing the tool bar. */
+ xg_resize_outer_widget (f, FRAME_WIDTH (f), FRAME_HEIGHT (f));
+
+ SET_FRAME_GARBAGED (f);
+ UNBLOCK_INPUT;
+ }
+}
+
+
+\f
+/***********************************************************************
+ Initializing
+ ***********************************************************************/
+void
+xg_initialize ()
+{
+ xg_ignore_gtk_scrollbar = 0;
+ xg_ignore_next_thumb = 0;
+ xg_left_ptr_cursor = 0;
+ xg_did_tearoff = 0;
+
+ xg_menu_cb_list.prev = xg_menu_cb_list.next =
+ xg_menu_item_cb_list.prev = xg_menu_item_cb_list.next = 0;
+
+ /* Remove F10 as a menu accelerator, it does not mix well with Emacs key
+ bindings. It doesn't seem to be any way to remove properties,
+ so we set it to VoidSymbol which in X means "no key". */
+ gtk_settings_set_string_property (gtk_settings_get_default (),
+ "gtk-menu-bar-accel",
+ "VoidSymbol",
+ EMACS_CLASS);
+}
+
+#endif /* USE_GTK */
projects / emacs.git / commitdiff