--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/toolbar-gtk.c	Mon Aug 13 11:44:37 2007 +0200
@@ -0,0 +1,671 @@
+/* toolbar implementation -- X interface.
+   Copyright (C) 1995 Board of Trustees, University of Illinois.
+   Copyright (C) 1995 Sun Microsystems, Inc.
+   Copyright (C) 1995, 1996 Ben Wing.
+   Copyright (C) 1996 Chuck Thompson.
+
+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 2, 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; see the file COPYING.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Synched up with: Not in FSF. */
+
+#include <config.h>
+#include "lisp.h"
+
+#include "console-gtk.h"
+#include "glyphs-gtk.h"
+#include "objects-gtk.h"
+#include "gtk-xemacs.h"
+#include "gccache-gtk.h"
+
+#include "faces.h"
+#include "frame.h"
+#include "toolbar.h"
+#include "window.h"
+
+extern GdkGC *gtk_get_gc (struct device *d, Lisp_Object font, Lisp_Object fg, Lisp_Object bg,
+			  Lisp_Object bg_pmap, Lisp_Object lwidth);
+
+static GdkGC *get_toolbar_gc (struct frame *f)
+{
+  Lisp_Object fg, bg;
+  Lisp_Object frame;
+
+  XSETFRAME (frame, f);
+
+  fg = Fspecifier_instance (Fget (Vtoolbar_face, Qforeground, Qnil), frame, Qnil, Qnil);
+  bg = Fspecifier_instance (Fget (Vtoolbar_face, Qbackground, Qnil), frame, Qnil, Qnil);
+				   
+  /* Need to swap the foreground/background here or most themes look bug ugly */
+  return (gtk_get_gc (XDEVICE (FRAME_DEVICE (f)), Qnil, bg, fg, Qnil, Qnil));
+}
+
+static void
+gtk_draw_blank_toolbar_button (struct frame *f, int x, int y, int width,
+			       int height, int threed, int border_width,
+			       int vertical)
+{
+  GtkXEmacs *ef = GTK_XEMACS (FRAME_GTK_TEXT_WIDGET (f));
+  int sx = x, sy = y, swidth = width, sheight = height;
+  GdkWindow *x_win = GTK_WIDGET (ef)->window;
+  GdkGC *background_gc = get_toolbar_gc (f);
+
+  if (vertical)
+    {
+      sx += border_width;
+      swidth -= 2 * border_width;
+    }
+  else
+    {
+      sy += border_width;
+      sheight -= 2 * border_width;
+    }
+
+  /* Blank the entire area. */
+  gdk_draw_rectangle (x_win, background_gc, TRUE, sx, sy, swidth, sheight);
+
+  /* Draw the outline. */
+  if (threed)
+    gtk_output_shadows (f, sx, sy, swidth, sheight, 2);
+
+  /* Do the border */
+  gdk_draw_rectangle (x_win, background_gc, TRUE, x, y,
+		      (vertical ? border_width : width),
+		      (vertical ? height : border_width));
+  gdk_draw_rectangle (x_win, background_gc, TRUE,
+		      (vertical ? sx + swidth : x),
+		      (vertical ? y : sy + sheight),
+		      (vertical ? border_width : width),
+		      (vertical ? height : border_width));
+}
+
+static void
+gtk_output_toolbar_button (struct frame *f, Lisp_Object button)
+{
+  int shadow_thickness = 2;
+  int x_adj, y_adj, width_adj, height_adj;
+  GdkWindow *x_win = FRAME_GTK_TEXT_WIDGET (f)->window;
+  GdkGC *background_gc = get_toolbar_gc (f);
+  Lisp_Object instance, frame, window, glyph;
+  struct toolbar_button *tb = XTOOLBAR_BUTTON (button);
+  struct Lisp_Image_Instance *p;
+  struct window *w;
+  int vertical = tb->vertical;
+  int border_width = tb->border_width;
+
+  if (vertical)
+    {
+      x_adj = border_width;
+      width_adj = - 2 * border_width;
+      y_adj = 0;
+      height_adj = 0;
+    }
+  else
+    {
+      x_adj = 0;
+      width_adj = 0;
+      y_adj = border_width;
+      height_adj = - 2 * border_width;
+    }
+
+  XSETFRAME (frame, f);
+  window = FRAME_LAST_NONMINIBUF_WINDOW (f);
+  w = XWINDOW (window);
+
+  glyph = get_toolbar_button_glyph (w, tb);
+
+  if (tb->enabled)
+    {
+      if (tb->down)
+	{
+	  shadow_thickness = -2;
+	}
+      else
+	{
+	  shadow_thickness = 2;
+	}
+    }
+  else
+    {
+      shadow_thickness = 0;
+    }
+
+  background_gc = get_toolbar_gc (f);
+
+  /* Clear the entire area. */
+  gdk_draw_rectangle (x_win, background_gc, TRUE,
+		      tb->x + x_adj,
+		      tb->y + y_adj,
+		      tb->width + width_adj,
+		      tb->height + height_adj);
+
+  /* Draw the outline. */
+  if (shadow_thickness)
+    gtk_output_shadows (f, tb->x + x_adj, tb->y + y_adj,
+			tb->width + width_adj, tb->height + height_adj,
+			shadow_thickness);
+
+  /* Do the border. */
+  gdk_draw_rectangle (x_win, background_gc, TRUE, tb->x, tb->y,
+		      (vertical ? border_width : tb->width),
+		      (vertical ? tb->height : border_width));
+
+  gdk_draw_rectangle (x_win, background_gc, TRUE,
+		      (vertical ? tb->x + tb->width - border_width : tb->x),
+		      (vertical ? tb->y : tb->y + tb->height - border_width),
+		      (vertical ? border_width : tb->width),
+		      (vertical ? tb->height : border_width));
+
+  background_gc = get_toolbar_gc (f);
+
+  /* #### It is currently possible for users to trash us by directly
+     changing the toolbar glyphs.  Avoid crashing in that case. */
+  if (GLYPHP (glyph))
+    instance = glyph_image_instance (glyph, window, ERROR_ME_NOT, 1);
+  else
+    instance = Qnil;
+
+  if (IMAGE_INSTANCEP (instance))
+    {
+      int width = tb->width + width_adj - shadow_thickness * 2;
+      int height = tb->height + height_adj - shadow_thickness * 2;
+      int x_offset = x_adj + shadow_thickness;
+      int y_offset = y_adj + shadow_thickness;
+
+      p = XIMAGE_INSTANCE (instance);
+
+      if (IMAGE_INSTANCE_PIXMAP_TYPE_P (p))
+	{
+	  if (width > (int) IMAGE_INSTANCE_PIXMAP_WIDTH (p))
+	    {
+	      x_offset += ((int) (width - IMAGE_INSTANCE_PIXMAP_WIDTH (p))
+			   / 2);
+	      width = IMAGE_INSTANCE_PIXMAP_WIDTH (p);
+	    }
+	  if (height > (int) IMAGE_INSTANCE_PIXMAP_HEIGHT (p))
+	    {
+	      y_offset += ((int) (height - IMAGE_INSTANCE_PIXMAP_HEIGHT (p))
+			   / 2);
+	      height = IMAGE_INSTANCE_PIXMAP_HEIGHT (p);
+	    }
+
+	  gtk_output_gdk_pixmap (f, XIMAGE_INSTANCE (instance), tb->x + x_offset,
+				 tb->y + y_offset, 0, 0, 0, 0, width, height,
+				 0, 0, 0, background_gc);
+	}
+      else if (IMAGE_INSTANCE_TYPE (p) == IMAGE_TEXT)
+	{
+	  /* #### We need to make the face used configurable. */
+	  struct face_cachel *cachel =
+	    WINDOW_FACE_CACHEL (w, DEFAULT_INDEX);
+	  struct display_line dl;
+	  Lisp_Object string = IMAGE_INSTANCE_TEXT_STRING (p);
+	  unsigned char charsets[NUM_LEADING_BYTES];
+	  Emchar_dynarr *buf;
+	  struct font_metric_info fm;
+
+	  /* This could be true if we were called via the Expose event
+             handler.  Mark the button as dirty and return
+             immediately. */
+	  if (f->window_face_cache_reset)
+	    {
+	      tb->dirty = 1;
+	      MARK_TOOLBAR_CHANGED;
+	      return;
+	    }
+	  buf = Dynarr_new (Emchar);
+	  convert_bufbyte_string_into_emchar_dynarr
+	    (XSTRING_DATA (string), XSTRING_LENGTH (string), buf);
+	  find_charsets_in_emchar_string (charsets, Dynarr_atp (buf, 0),
+					  Dynarr_length (buf));
+	  ensure_face_cachel_complete (cachel, window, charsets);
+	  face_cachel_charset_font_metric_info (cachel, charsets, &fm);
+
+	  dl.ascent = fm.ascent;
+	  dl.descent = fm.descent;
+	  dl.ypos = tb->y + y_offset + fm.ascent;
+
+	  if (fm.ascent + fm.descent <= height)
+	    {
+	      dl.ypos += (height - fm.ascent - fm.descent) / 2;
+	      dl.clip = 0;
+	    }
+	  else
+	    {
+	      dl.clip = fm.ascent + fm.descent - height;
+	    }
+
+	  gtk_output_string (w, &dl, buf, tb->x + x_offset, 0, 0, width,
+			     DEFAULT_INDEX, 0, 0, 0, 0);
+	  Dynarr_free (buf);
+	}
+
+      /* We silently ignore the image if it isn't a pixmap or text. */
+    }
+
+  tb->dirty = 0;
+}
+
+static int
+gtk_get_button_size (struct frame *f, Lisp_Object window,
+		     struct toolbar_button *tb, int vert, int pos)
+{
+  int shadow_thickness = 2;
+  int size;
+
+  if (tb->blank)
+    {
+      if (!NILP (tb->down_glyph))
+	size = XINT (tb->down_glyph);
+      else
+	size = DEFAULT_TOOLBAR_BLANK_SIZE;
+    }
+  else
+    {
+      struct window *w = XWINDOW (window);
+      Lisp_Object glyph = get_toolbar_button_glyph (w, tb);
+
+      /* Unless, of course, the user has done something stupid like
+         change the glyph out from under us.  Use a blank placeholder
+         in that case. */
+      if (NILP (glyph))
+	return XINT (f->toolbar_size[pos]);
+
+      if (vert)
+	size = glyph_height (glyph, window);
+      else
+	size = glyph_width (glyph, window);
+    }
+
+  if (!size)
+    {
+      /* If the glyph doesn't have a size we'll insert a blank
+         placeholder instead. */
+      return XINT (f->toolbar_size[pos]);
+    }
+
+  size += shadow_thickness * 2;
+
+  return (size);
+}
+
+#define GTK_OUTPUT_BUTTONS_LOOP(left)					\
+  do {									\
+    while (!NILP (button))						\
+      {									\
+	struct toolbar_button *tb = XTOOLBAR_BUTTON (button);		\
+	int size, height, width;					\
+									\
+	if (left && tb->pushright)					\
+	  break;							\
+									\
+        size = gtk_get_button_size (f, window, tb, vert, pos);		\
+									\
+	if (vert)							\
+	  {								\
+	    width = bar_width;						\
+	    if (y + size > max_pixpos)					\
+	      height = max_pixpos - y;					\
+	    else							\
+	      height = size;						\
+	  }								\
+	else								\
+	  {								\
+	    if (x + size > max_pixpos)					\
+	      width = max_pixpos - x;					\
+	    else							\
+	      width = size;						\
+	    height = bar_height;					\
+	  }								\
+									\
+	if (tb->x != x							\
+	    || tb->y != y						\
+	    || tb->width != width					\
+	    || tb->height != height					\
+	    || tb->dirty)						\
+	  {								\
+	    if (width && height)					\
+	      {								\
+		tb->x = x;						\
+		tb->y = y;						\
+		tb->width = width;					\
+		tb->height = height;					\
+	        tb->border_width = border_width;			\
+	        tb->vertical = vert;					\
+									\
+                if (tb->blank || NILP (tb->up_glyph))			\
+		  {							\
+		    int threed = (EQ (Qt, tb->up_glyph) ? 1 : 0);	\
+		    gtk_draw_blank_toolbar_button (f, x, y, width,	\
+						 height, threed,	\
+						 border_width, vert);	\
+		  }							\
+	        else							\
+		  gtk_output_toolbar_button (f, button);		\
+	      }								\
+	  }								\
+									\
+	if (vert)							\
+	  y += height;							\
+	else								\
+	  x += width;							\
+									\
+	if ((vert && y == max_pixpos) || (!vert && x == max_pixpos))	\
+	  button = Qnil;						\
+	else								\
+	  button = tb->next;						\
+      }									\
+  } while (0)
+
+#define SET_TOOLBAR_WAS_VISIBLE_FLAG(frame, pos, flag)			\
+  do {									\
+    switch (pos)							\
+      {									\
+      case TOP_TOOLBAR:							\
+	(frame)->top_toolbar_was_visible = flag;			\
+	break;								\
+      case BOTTOM_TOOLBAR:						\
+	(frame)->bottom_toolbar_was_visible = flag;			\
+	break;								\
+      case LEFT_TOOLBAR:						\
+	(frame)->left_toolbar_was_visible = flag;			\
+	break;								\
+      case RIGHT_TOOLBAR:						\
+	(frame)->right_toolbar_was_visible = flag;			\
+	break;								\
+      default:								\
+	abort ();							\
+      }									\
+  } while (0)
+
+static void
+gtk_output_toolbar (struct frame *f, enum toolbar_pos pos)
+{
+  int x, y, bar_width, bar_height, vert;
+  int max_pixpos, right_size, right_start, blank_size;
+  int border_width = FRAME_REAL_TOOLBAR_BORDER_WIDTH (f, pos);
+  Lisp_Object button, window;
+  GdkWindow *x_win = FRAME_GTK_TEXT_WIDGET (f)->window;
+  GdkGC *background_gc = get_toolbar_gc (f);
+
+  get_toolbar_coords (f, pos, &x, &y, &bar_width, &bar_height, &vert, 1);
+  window = FRAME_LAST_NONMINIBUF_WINDOW (f);
+
+  /* Do the border */
+  gdk_draw_rectangle (x_win, background_gc, TRUE, x, y,
+		      (vert ? bar_width : border_width),
+		      (vert ? border_width : bar_height));
+  gdk_draw_rectangle (x_win, background_gc, TRUE,
+		      (vert ? x : x + bar_width - border_width),
+		      (vert ? y + bar_height - border_width : y),
+		      (vert ? bar_width : border_width),
+		      (vert ? border_width : bar_height));
+
+  if (vert)
+    {
+      max_pixpos = y + bar_height - border_width;
+      y += border_width;
+    }
+  else
+    {
+      max_pixpos = x + bar_width - border_width;
+      x += border_width;
+    }
+
+  button = FRAME_TOOLBAR_BUTTONS (f, pos);
+  right_size = 0;
+
+  /* First loop over all of the buttons to determine how much room we
+     need for left hand and right hand buttons.  This loop will also
+     make sure that all instances are instantiated so when we actually
+     output them they will come up immediately. */
+  while (!NILP (button))
+    {
+      struct toolbar_button *tb = XTOOLBAR_BUTTON (button);
+      int size = gtk_get_button_size (f, window, tb, vert, pos);
+
+      if (tb->pushright)
+	right_size += size;
+
+      button = tb->next;
+    }
+
+  button = FRAME_TOOLBAR_BUTTONS (f, pos);
+
+  /* Loop over the left buttons, updating and outputting them. */
+  GTK_OUTPUT_BUTTONS_LOOP (1);
+
+  /* Now determine where the right buttons start. */
+  right_start = max_pixpos - right_size;
+  if (right_start < (vert ? y : x))
+    right_start = (vert ? y : x);
+
+  /* Output the blank which goes from the end of the left buttons to
+     the start of the right. */
+  blank_size = right_start - (vert ? y : x);
+  if (blank_size)
+    {
+      int height, width;
+
+      if (vert)
+	{
+	  width = bar_width;
+	  height = blank_size;
+	}
+      else
+	{
+	  width = blank_size;
+	  height = bar_height;
+	}
+
+      /*
+       * Use a 3D pushright separator only if there isn't a toolbar
+       * border.  A flat separator meshes with the border and looks
+       * better.
+       */
+      gtk_draw_blank_toolbar_button (f, x, y, width, height, !border_width,
+				     border_width, vert);
+
+      if (vert)
+	y += height;
+      else
+	x += width;
+    }
+
+  /* Loop over the right buttons, updating and outputting them. */
+  GTK_OUTPUT_BUTTONS_LOOP (0);
+
+  if (!vert)
+    {
+      Lisp_Object frame;
+
+      XSETFRAME (frame, f);
+      redisplay_clear_region (frame,
+			      DEFAULT_INDEX, FRAME_PIXWIDTH (f) - 1, y, 1,
+			      bar_height);
+    }
+
+  SET_TOOLBAR_WAS_VISIBLE_FLAG (f, pos, 1);
+
+  gdk_flush ();
+}
+
+static void
+gtk_clear_toolbar (struct frame *f, enum toolbar_pos pos, int thickness_change)
+{
+  Lisp_Object frame;
+  int x, y, width, height, vert;
+
+  get_toolbar_coords (f, pos, &x, &y, &width, &height, &vert, 1);
+  XSETFRAME (frame, f);
+
+  /* The thickness_change parameter is used by the toolbar resize routines
+     to clear any excess toolbar if the size shrinks. */
+  if (thickness_change < 0)
+    {
+      if (pos == LEFT_TOOLBAR || pos == RIGHT_TOOLBAR)
+	{
+	  x = x + width + thickness_change;
+	  width = -thickness_change;
+	}
+      else
+	{
+	  y = y + height + thickness_change;
+	  height = -thickness_change;
+	}
+    }
+
+  SET_TOOLBAR_WAS_VISIBLE_FLAG (f, pos, 0);
+
+  redisplay_clear_region (frame, DEFAULT_INDEX, x, y, width, height);
+  gdk_flush ();
+}
+
+static void
+gtk_output_frame_toolbars (struct frame *f)
+{
+  assert (FRAME_GTK_P (f));
+
+  if (FRAME_REAL_TOP_TOOLBAR_VISIBLE (f))
+    gtk_output_toolbar (f, TOP_TOOLBAR);
+  else if (f->top_toolbar_was_visible)
+    gtk_clear_toolbar (f, TOP_TOOLBAR, 0);
+
+  if (FRAME_REAL_BOTTOM_TOOLBAR_VISIBLE (f))
+    gtk_output_toolbar (f, BOTTOM_TOOLBAR);
+  else if (f->bottom_toolbar_was_visible)
+    gtk_clear_toolbar (f, BOTTOM_TOOLBAR, 0);
+
+  if (FRAME_REAL_LEFT_TOOLBAR_VISIBLE (f))
+    gtk_output_toolbar (f, LEFT_TOOLBAR);
+  else if (f->left_toolbar_was_visible)
+    gtk_clear_toolbar (f, LEFT_TOOLBAR, 0);
+
+  if (FRAME_REAL_RIGHT_TOOLBAR_VISIBLE (f))
+    gtk_output_toolbar (f, RIGHT_TOOLBAR);
+  else if (f->right_toolbar_was_visible)
+    gtk_clear_toolbar (f, RIGHT_TOOLBAR, 0);
+}
+
+static void
+gtk_redraw_exposed_toolbar (struct frame *f, enum toolbar_pos pos, int x, int y,
+			    int width, int height)
+{
+  int bar_x, bar_y, bar_width, bar_height, vert;
+  Lisp_Object button = FRAME_TOOLBAR_BUTTONS (f, pos);
+
+  get_toolbar_coords (f, pos, &bar_x, &bar_y, &bar_width, &bar_height,
+		      &vert, 1);
+
+  if (((y + height) < bar_y) || (y > (bar_y + bar_height)))
+    return;
+  if (((x + width) < bar_x) || (x > (bar_x + bar_width)))
+    return;
+
+  while (!NILP (button))
+    {
+      struct toolbar_button *tb = XTOOLBAR_BUTTON (button);
+
+      if (vert)
+	{
+	  if (((tb->y + tb->height) > y) && (tb->y < (y + height)))
+	    tb->dirty = 1;
+
+	  /* If this is true we have gone past the exposed region. */
+	  if (tb->y > (y + height))
+	    break;
+	}
+      else
+	{
+	  if (((tb->x + tb->width) > x) && (tb->x < (x + width)))
+	    tb->dirty = 1;
+
+	  /* If this is true we have gone past the exposed region. */
+	  if (tb->x > (x + width))
+	    break;
+	}
+
+      button = tb->next;
+    }
+
+  /* Even if none of the buttons is in the area, the blank region at
+     the very least must be because the first thing we did is verify
+     that some portion of the toolbar is in the exposed region. */
+  gtk_output_toolbar (f, pos);
+}
+
+static void
+gtk_redraw_exposed_toolbars (struct frame *f, int x, int y, int width,
+			     int height)
+{
+  assert (FRAME_GTK_P (f));
+
+  if (FRAME_REAL_TOP_TOOLBAR_VISIBLE (f))
+    gtk_redraw_exposed_toolbar (f, TOP_TOOLBAR, x, y, width, height);
+
+  if (FRAME_REAL_BOTTOM_TOOLBAR_VISIBLE (f))
+    gtk_redraw_exposed_toolbar (f, BOTTOM_TOOLBAR, x, y, width, height);
+
+  if (FRAME_REAL_LEFT_TOOLBAR_VISIBLE (f))
+    gtk_redraw_exposed_toolbar (f, LEFT_TOOLBAR, x, y, width, height);
+
+  if (FRAME_REAL_RIGHT_TOOLBAR_VISIBLE (f))
+    gtk_redraw_exposed_toolbar (f, RIGHT_TOOLBAR, x, y, width, height);
+}
+
+static void
+gtk_redraw_frame_toolbars (struct frame *f)
+{
+  /* There are certain startup paths that lead to update_EmacsFrame in
+     faces.c being called before a new frame is fully initialized.  In
+     particular before we have actually mapped it.  That routine can
+     call this one.  So, we need to make sure that the frame is
+     actually ready before we try and draw all over it. */
+
+  if (GTK_WIDGET_REALIZED (FRAME_GTK_TEXT_WIDGET (f)))
+    gtk_redraw_exposed_toolbars (f, 0, 0, FRAME_PIXWIDTH (f),
+				 FRAME_PIXHEIGHT (f));
+}
+
+
+static void
+gtk_initialize_frame_toolbars (struct frame *f)
+{
+}
+
+/* This only calls one function but we go ahead and create this in
+   case we ever do decide that we need to do more work. */
+static void
+gtk_free_frame_toolbars (struct frame *f)
+{
+}
+
+
+/************************************************************************/
+/*                            initialization                            */
+/************************************************************************/
+
+void
+console_type_create_toolbar_gtk (void)
+{
+  CONSOLE_HAS_METHOD (gtk, output_frame_toolbars);
+  CONSOLE_HAS_METHOD (gtk, initialize_frame_toolbars);
+  CONSOLE_HAS_METHOD (gtk, free_frame_toolbars);
+  CONSOLE_HAS_METHOD (gtk, output_toolbar_button);
+  CONSOLE_HAS_METHOD (gtk, redraw_exposed_toolbars);
+  CONSOLE_HAS_METHOD (gtk, redraw_frame_toolbars);
+}