Removed.

2006-02-01  Behdad Esfahbod  <behdad@gnome.org>

        * examples/viewer.c: Removed.

1 files changed, 0 insertions, 709 deletions

diff --git a/examples/viewer.c b/examples/viewer.c
deleted file mode 100644
index 6fd698b0..00000000
--- a/examples/viewer.c
+++ /dev/null
@@ -1,709 +0,0 @@
-/* Pango
- * viewer.c: Example program to view a UTF-8 encoding file
- *           using Pango to render result.
- *
- * Copyright (C) 1999 Red Hat Software
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include <gtk/gtk.h>
-#include <gdk/gdkx.h>
-
-#include <pango/pango.h>
-#include <pango/pangox.h>
-
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-#define BUFSIZE 1024
-
-typedef struct _Paragraph Paragraph;
-
-/* Structure representing a paragraph
- */
-struct _Paragraph {
-  char *text;
-  int length;
-  int height;   /* Height, in pixels */
-  PangoLayout *layout;
-};
-
-GList *paragraphs;
-
-static PangoFontDescription *font_description;
-static Paragraph *highlight_para;
-static int highlight_offset;
-
-GtkWidget *styles_combo;
-
-static GtkWidget *message_label;
-GtkWidget *layout;
-
-PangoContext *context;
-
-static void fill_styles_combo (GtkWidget *combo);
-
-/* Read an entire file into a string
- */
-static char *
-read_file(char *name)
-{
-  GString *inbuf;
-  int fd;
-  char *text;
-  char buffer[BUFSIZE];
-
-  fd = open(name, O_RDONLY);
-  if (!fd)
-    {
-      fprintf(stderr, "gscript-viewer: Cannot open %s: %s\n",
-	      name, g_strerror (errno));
-      return NULL;
-    }
-
-  inbuf = g_string_new (NULL);
-  while (1)
-    {
-      int count = read (fd, buffer, BUFSIZE-1);
-      if (count < 0)
-	{
-	  fprintf(stderr, "gscript-viewer: Error reading %s: %s\n",
-		  name, g_strerror (errno));
-	  g_string_free (inbuf, TRUE);
-	  return NULL;
-	}
-      else if (count == 0)
-	break;
-
-      buffer[count] = '\0';
-
-      g_string_append (inbuf, buffer);
-    }
-
-  close (fd);
-
-  text = inbuf->str;
-  g_string_free (inbuf, FALSE);
-
-  return text;
-}
-
-/* Take a UTF8 string and break it into paragraphs on \n characters
- */
-static GList *
-split_paragraphs (char *text)
-{
-  char *p = text;
-  char *next;
-  gunichar wc;
-  GList *result = NULL;
-  char *last_para = text;
-  
-  while (*p)
-    {
-      wc = g_utf8_get_char (p);
-      next = g_utf8_next_char (p);
-      if (wc == (gunichar)-1)
-	{
-	  fprintf (stderr, "gscript-viewer: Invalid character in input\n");
-	  g_list_foreach (result, (GFunc)g_free, NULL);
-	  return NULL;
-	}
-      if (!*p || !wc || wc == '\n')
-	{
-	  Paragraph *para = g_new (Paragraph, 1);
-	  para->text = last_para;
-	  para->length = p - last_para;
-	  para->layout = pango_layout_new (context);
-	  pango_layout_set_text (para->layout, para->text, para->length);
-	  para->height = 0;
-
-	  last_para = next;
-	    
-	  result = g_list_prepend (result, para);
-	}
-      if (!wc) /* incomplete character at end */
-	break;
-      p = next;
-    }
-
-  return g_list_reverse (result);
-}
-
-/* Given an x-y position, return the paragraph and offset
- * within the paragraph of the click.
- */
-gboolean
-xy_to_cp (int width, int x, int y, Paragraph **para_return, int *index)
-{
-  GList *para_list;
-  int height = 0;
-
-  *para_return = NULL;
-
-  para_list = paragraphs;
-  while (para_list && height < y)
-    {
-      Paragraph *para = para_list->data;
-      
-      if (height + para->height >= y)
-	{
-	  gboolean result = pango_layout_xy_to_index (para->layout, x * 1000, (y - height) * 1000, 
-						      index, NULL);
-	  if (result && para_return)
-	    *para_return = para;
-
-	  return result;
-	}
-      
-      height += para->height;
-      para_list = para_list->next;
-    }
-
-  return FALSE;
-}
-
-/* Given a paragraph and offset in that paragraph, find the
- * bounding rectangle for the character at the offset.
- */ 
-void
-char_bounds (Paragraph *para, int index, int width, PangoRectangle *rect)
-{
-  GList *para_list;
-  
-  int height = 0;
-  
-  para_list = paragraphs;
-  while (para_list)
-    {
-      Paragraph *cur_para = para_list->data;
-      
-      if (cur_para == para)
-	{
-	  PangoRectangle pos;
-
-	  pango_layout_index_to_pos (cur_para->layout, index, &pos);
-
-	  rect->x = MIN (pos.x, pos.x + pos.width) / 1000;
-	  rect->width = ABS (pos.width) / 1000;
-	  rect->y = height + pos.y / 1000;
-	  rect->height = pos.height / 1000;
-	}
-      
-      height += cur_para->height;
-      para_list = para_list->next;
-    }
-}
-
-/* XOR a rectangle over a given character
- */
-void
-xor_char (GtkWidget *layout, GdkRectangle *clip_rect,
-	  Paragraph *para, int offset)
-{
-  static GdkGC *gc;
-  PangoRectangle rect;		/* GdkRectangle in 1.2 is too limited
-				 */
-  if (!gc)
-    {
-      GdkGCValues values;
-      values.foreground = layout->style->white.pixel ?
-	layout->style->white : layout->style->black;
-      values.function = GDK_XOR;
-      gc = gdk_gc_new_with_values (GTK_LAYOUT (layout)->bin_window,
-				   &values,
-				   GDK_GC_FOREGROUND | GDK_GC_FUNCTION);
-    }
-
-  gdk_gc_set_clip_rectangle (gc, clip_rect);
-
-  char_bounds (para, offset, layout->allocation.width, &rect);
-
-  rect.y -= GTK_LAYOUT (layout)->yoffset;
-
-  if ((rect.y + rect.height >= 0) && (rect.y < layout->allocation.height))
-    gdk_draw_rectangle (GTK_LAYOUT (layout)->bin_window, gc, TRUE,
-			rect.x, rect.y, rect.width, rect.height);
-}
-
-/* Handle a size allocation by re-laying-out each paragraph to
- * the new width, setting the new size for the layout and
- * then queing a redraw
- */
-void
-size_allocate (GtkWidget *layout, GtkAllocation *allocation)
-{
-  GList *tmp_list;
-  int height = 0;
-  PangoDirection base_dir = pango_context_get_base_dir (context);
-
-  tmp_list = paragraphs;
-  while (tmp_list)
-    {
-      Paragraph *para = tmp_list->data;
-      PangoRectangle logical_rect;
-	  
-      tmp_list = tmp_list->next;
-
-      pango_layout_set_alignment (para->layout,
-				  base_dir == PANGO_DIRECTION_LTR ? PANGO_ALIGN_LEFT : PANGO_ALIGN_RIGHT);
-      pango_layout_set_width (para->layout, layout->allocation.width * 1000);
-
-      pango_layout_get_extents (para->layout, NULL, &logical_rect);
-      para->height = logical_rect.height / 1000;
-      
-      height += para->height;
-    }
-
-  gtk_layout_set_size (GTK_LAYOUT (layout), allocation->width, height);
-
-  if (GTK_LAYOUT (layout)->yoffset + allocation->height > height)
-    gtk_adjustment_set_value (GTK_LAYOUT (layout)->vadjustment, height - allocation->height);
-}
-
-/* Handle a draw/expose by finding the paragraphs that intersect
- * the region and reexposing them.
- */
-void
-draw (GtkWidget *layout, GdkRectangle *area)
-{
-  GList *tmp_list;
-  int height = 0;
-  
-  gdk_draw_rectangle (GTK_LAYOUT (layout)->bin_window,
-		      layout->style->base_gc[layout->state],
-		      TRUE,
-		      area->x, area->y, 
-		      area->width, area->height);
-  
-  gdk_gc_set_clip_rectangle (layout->style->text_gc[layout->state], area);
-
-  tmp_list = paragraphs;
-  while (tmp_list &&
-	 height < area->y + area->height + GTK_LAYOUT (layout)->yoffset)
-    {
-      Paragraph *para = tmp_list->data;
-      tmp_list = tmp_list->next;
-      
-      if (height + para->height >= GTK_LAYOUT (layout)->yoffset + area->y)
-	pango_x_render_layout (GDK_DISPLAY(), GDK_WINDOW_XWINDOW (GTK_LAYOUT (layout)->bin_window),
-			       GDK_GC_XGC (layout->style->text_gc[GTK_STATE_NORMAL]),
-			       para->layout, 0, height - GTK_LAYOUT (layout)->yoffset);
-
-      height += para->height;
-    }
-
-  gdk_gc_set_clip_rectangle (layout->style->text_gc[layout->state], NULL);
-
-  if (highlight_para)
-    xor_char (layout, area, highlight_para, highlight_offset);
-}
-
-gboolean
-expose (GtkWidget *layout, GdkEventExpose *event)
-{
-  if (event->window == GTK_LAYOUT (layout)->bin_window)
-    draw (layout, &event->area);
-
-  return TRUE;
-}
-
-void
-button_press (GtkWidget *layout, GdkEventButton *event)
-{
-  Paragraph *para = NULL;
-  int offset;
-  gchar *message;
-  
-  xy_to_cp (layout->allocation.width,
-	    event->x, event->y + GTK_LAYOUT (layout)->yoffset,
-	    &para, &offset);
-
-  if (highlight_para)
-    xor_char (layout, NULL, highlight_para, highlight_offset);
-
-  highlight_para = para;
-  highlight_offset = offset;
-  
-  if (para)
-    {
-      gunichar wc;
-
-      wc = g_utf8_get_char (para->text + offset);
-      message = g_strdup_printf ("Current char: U%04x", wc);
-      
-      xor_char (layout, NULL, highlight_para, highlight_offset);
-    }
-  else
-    message = g_strdup_printf ("Current char:");
-
-  gtk_label_set_text (GTK_LABEL (message_label), message);
-  g_free (message);
-}
-
-static void
-checkbutton_toggled (GtkWidget *widget, gpointer data)
-{
-  GList *para_list;
-  
-  pango_context_set_base_dir (context, GTK_TOGGLE_BUTTON (widget)->active ? PANGO_DIRECTION_RTL : PANGO_DIRECTION_LTR);
-
-  para_list = paragraphs;
-  while (para_list)
-    {
-      Paragraph *para = para_list->data;
-
-      pango_layout_context_changed (para->layout);
-      para_list = para_list->next;
-    }
-
-  gtk_widget_queue_resize (layout);
-}
-
-static void
-reload_font ()
-{
-  GList *para_list;
-
-  pango_context_set_font_description (context, &font_description);
-
-  para_list = paragraphs;
-  while (para_list)
-    {
-      Paragraph *para = para_list->data;
-
-      pango_layout_context_changed (para->layout);
-      para_list = para_list->next;
-    }
-
-  if (layout)
-    gtk_widget_queue_resize (layout);
-}
-
-void
-set_family (GtkWidget *entry, gpointer data)
-{
-  pango_font_description_set_family (font_description, gtk_editable_get_chars (GTK_EDITABLE (entry), 0, -1));
-  fill_styles_combo (styles_combo);
-}
-
-void
-set_style (GtkWidget *entry, gpointer data)
-{
-  char *str = gtk_editable_get_chars (GTK_EDITABLE (entry), 0, -1);
-  PangoFontDescription *tmp_desc;
-  
-  tmp_desc = pango_font_description_from_string (str);
-
-  pango_font_description_set_style (font_description, pango_font_description_get_style (tmp_desc));
-  pango_font_description_set_variant (font_description, pango_font_description_get_variant (tmp_desc));
-  pango_font_description_set_weight (font_description, pango_font_description_get_weight (tmp_desc));
-  pango_font_description_set_stretch (font_description, pango_font_description_get_stretch (tmp_desc));
-
-  pango_font_description_free (tmp_desc);
-  g_free (str);
-  
-  reload_font ();
-}
-
-void
-font_size_changed (GtkAdjustment *adj)
-{
-  pango_font_description_set_size (font_description, (int)(adj->value * PANGO_SCALE + 0.5));
-  reload_font();
-}
-
-static int
-compare_font_descriptions (const PangoFontDescription *a, const PangoFontDescription *b)
-{
-  int val = strcmp (a->family_name, b->family_name);
-  if (val != 0)
-    return val;
-
-  if (a->weight != b->weight)
-    return a->weight - b->weight;
-
-  if (a->style != b->style)
-    return a->style - b->style;
-  
-  if (a->stretch != b->stretch)
-    return a->stretch - b->stretch;
-
-  if (a->variant != b->variant)
-    return a->variant - b->variant;
-
-  return 0;
-}
-
-static int
-font_description_sort_func (const void *a, const void *b)
-{
-  return compare_font_descriptions (*(PangoFontDescription **)a, *(PangoFontDescription **)b);
-}
-
-typedef struct 
-{
-  PangoFontDescription **descs;
-  int n_descs;
-} FontDescInfo;
-
-static void
-free_info (FontDescInfo *info)
-{
-  pango_font_descriptions_free (info->descs, info->n_descs);
-}
-
-static void
-fill_styles_combo (GtkWidget *combo)
-{
-  int i;
-  GList *style_list = NULL;
-  
-  FontDescInfo *info = g_new (FontDescInfo, 1);
-  pango_context_list_fonts (context, pango_font_description_get_family (font_description), &info->descs, &info->n_descs);
-  gtk_object_set_data_full (GTK_OBJECT (combo), "descs", info, (GtkDestroyNotify)free_info);
-
-  qsort (info->descs, info->n_descs, sizeof(PangoFontDescription *), font_description_sort_func);
-
-  for (i=0; i<info->n_descs; i++)
-    {
-      char *str;
-	
-      PangoFontDescription *tmp_desc;
-
-      tmp_desc = *info->descs[i];
-      tmp_desc.family_name = NULL;
-      tmp_desc.size = 0;
-      
-      str = pango_font_description_to_string (tmp_desc);
-      style_list = g_list_prepend (style_list, str);
-    }
-
-  style_list = g_list_reverse (style_list);
-
-  gtk_combo_set_popdown_strings (GTK_COMBO (combo), style_list);
-  g_list_foreach (style_list, (GFunc)g_free, NULL);
-}
-
-static GtkWidget *
-make_styles_combo ()
-{
-  GtkWidget *combo;
-
-  combo = gtk_combo_new ();
-  gtk_combo_set_value_in_list (GTK_COMBO (combo), TRUE, FALSE);
-  gtk_editable_set_editable (GTK_EDITABLE (GTK_COMBO (combo)->entry), FALSE);
-
-  gtk_signal_connect (GTK_OBJECT (GTK_COMBO (combo)->entry), "changed",
-		      GTK_SIGNAL_FUNC (set_style), NULL);
-
-  styles_combo = combo;
-  fill_styles_combo (combo);
-  
-  return combo;
-}
-
-static int
-cmp_strings (const void *a, const void *b)
-{
-  return strcmp (*(const char **)a, *(const char **)b);
-}
-
-GtkWidget *
-make_families_menu ()
-{
-  GtkWidget *combo;
-  gchar **families;
-  int n_families;
-  GList *family_list = NULL;
-  int i;
-  
-  pango_context_list_families (context, &families, &n_families);
-  qsort (families, n_families, sizeof(char *), cmp_strings);
-
-  for (i=0; i<n_families; i++)
-    family_list = g_list_prepend (family_list, families[i]);
-
-  family_list = g_list_reverse (family_list);
-  
-  combo = gtk_combo_new ();
-  gtk_combo_set_popdown_strings (GTK_COMBO (combo), family_list);
-  gtk_combo_set_value_in_list (GTK_COMBO (combo), TRUE, FALSE);
-  gtk_editable_set_editable (GTK_EDITABLE (GTK_COMBO (combo)->entry), FALSE);
-
-  gtk_entry_set_text (GTK_ENTRY (GTK_COMBO (combo)->entry), pango_font_description_get_family (font_description));
-
-  gtk_signal_connect (GTK_OBJECT (GTK_COMBO (combo)->entry), "changed",
-		      GTK_SIGNAL_FUNC (set_family), NULL);
-  
-  g_list_free (family_list);
-  pango_font_map_free_families (families, n_families);
-
-  return combo;
-}
-
-
-GtkWidget *
-make_font_selector (void)
-{
-  GtkWidget *hbox;
-  GtkWidget *util_hbox;
-  GtkWidget *label;
-  GtkWidget *option_menu;
-  GtkWidget *spin_button;
-  GtkAdjustment *adj;
-  
-  hbox = gtk_hbox_new (FALSE, 4);
-  
-  util_hbox = gtk_hbox_new (FALSE, 2);
-  label = gtk_label_new ("Family:");
-  gtk_box_pack_start (GTK_BOX (util_hbox), label, FALSE, FALSE, 0);
-  option_menu = make_families_menu ();
-  gtk_box_pack_start (GTK_BOX (util_hbox), option_menu, FALSE, FALSE, 0);
-  
-  gtk_box_pack_start (GTK_BOX (hbox), util_hbox, FALSE, FALSE, 0);
-
-  util_hbox = gtk_hbox_new (FALSE, 2);
-  label = gtk_label_new ("Style:");
-  gtk_box_pack_start (GTK_BOX (util_hbox), label, FALSE, FALSE, 0);
-  option_menu = make_styles_combo ();
-  gtk_box_pack_start (GTK_BOX (util_hbox), option_menu, FALSE, FALSE, 0);
-  
-  gtk_box_pack_start (GTK_BOX (hbox), util_hbox, FALSE, FALSE, 0);
-
-  util_hbox = gtk_hbox_new (FALSE, 2);
-  label = gtk_label_new ("Size:");
-  gtk_box_pack_start (GTK_BOX (util_hbox), label, FALSE, FALSE, 0);
-  spin_button = gtk_spin_button_new (NULL, 1., 0);
-  gtk_box_pack_start (GTK_BOX (util_hbox), spin_button, FALSE, FALSE, 0);
-
-  gtk_box_pack_start (GTK_BOX (hbox), util_hbox, FALSE, FALSE, 0);
-
-  adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (spin_button));
-  adj->value = pango_font_description_get_size (font_description) / (1.*PANGO_SCALE);
-  adj->lower = 0;
-  adj->upper = 1024;
-  adj->step_increment = 1;
-  adj->page_size = 10;
-  gtk_adjustment_changed (adj);
-  gtk_adjustment_value_changed (adj);
-
-  gtk_signal_connect (GTK_OBJECT (adj), "value_changed",
-		      GTK_SIGNAL_FUNC (font_size_changed), NULL);
-  
-  return hbox;
-}
-
-int 
-main (int argc, char **argv)
-{
-  char *text;
-  GtkWidget *window;
-  GtkWidget *scrollwin;
-  GtkWidget *vbox, *hbox;
-  GtkWidget *frame;
-  GtkWidget *checkbutton;
-
-  gtk_init (&argc, &argv);
-  
-  if (argc != 2)
-    {
-      fprintf (stderr, "Usage: gscript-viewer FILE\n");
-      exit(1);
-    }
-
-  /* Create the list of paragraphs from the supplied file
-   */
-  text = read_file (argv[1]);
-  if (!text)
-    exit(1);
-
-  context = pango_x_get_context (GDK_DISPLAY());
-
-  paragraphs = split_paragraphs (text);
-
-  pango_context_set_lang (context, "en_US");
-  pango_context_set_base_dir (context, PANGO_DIRECTION_LTR);
-
-  pango_font_description_set_family_static (font_description, "sans");
-  pango_font_description_set_style (font_description, PANGO_STYLE_NORMAL);
-  pango_font_description_set_variant (font_description, PANGO_VARIANT_NORMAL);
-  pango_font_description_set_weight (font_description, 500);
-  pango_font_description_set_stretch (font_description, PANGO_STRETCH_NORMAL);
-  pango_font_description_set_size (font_description, 16000);
-
-  pango_context_set_font_description (context, &font_description);
-
-  /* Create the user interface
-   */
-  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
-  gtk_window_set_default_size (GTK_WINDOW (window), 400, 400);
-
-  gtk_signal_connect (GTK_OBJECT (window), "destroy",
-		      GTK_SIGNAL_FUNC (gtk_main_quit), NULL);
-
-  vbox = gtk_vbox_new (FALSE, 4);
-  gtk_container_add (GTK_CONTAINER (window), vbox);
-
-  hbox = make_font_selector ();
-  gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
-  
-  scrollwin = gtk_scrolled_window_new (NULL, NULL);
-  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrollwin),
-				  GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
-  
-  gtk_box_pack_start (GTK_BOX (vbox), scrollwin, TRUE, TRUE, 0);
-  
-  layout = gtk_layout_new (NULL, NULL);
-  gtk_widget_set_events (layout, GDK_BUTTON_PRESS_MASK);
-  gtk_widget_set_app_paintable (layout, TRUE);
-
-  gtk_signal_connect (GTK_OBJECT (layout), "size_allocate",
-		      GTK_SIGNAL_FUNC (size_allocate), paragraphs);
-  gtk_signal_connect (GTK_OBJECT (layout), "expose_event",
-		      GTK_SIGNAL_FUNC (expose), paragraphs);
-  gtk_signal_connect (GTK_OBJECT (layout), "draw",
-		      GTK_SIGNAL_FUNC (draw), paragraphs);
-  gtk_signal_connect (GTK_OBJECT (layout), "button_press_event",
-		      GTK_SIGNAL_FUNC (button_press), paragraphs);
-
-  gtk_container_add (GTK_CONTAINER (scrollwin), layout);
-
-  frame = gtk_frame_new (NULL);
-  gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
-  gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
-
-  message_label = gtk_label_new ("Current char:");
-  gtk_misc_set_padding (GTK_MISC (message_label), 1, 1);
-  gtk_misc_set_alignment (GTK_MISC (message_label), 0.0, 0.5);
-  gtk_container_add (GTK_CONTAINER (frame), message_label);
-
-  checkbutton = gtk_check_button_new_with_label ("Use RTL global direction");
-  gtk_signal_connect (GTK_OBJECT (checkbutton), "toggled",
-		      GTK_SIGNAL_FUNC (checkbutton_toggled), NULL);
-  gtk_box_pack_start (GTK_BOX (vbox), checkbutton, FALSE, FALSE, 0);
-
-  gtk_widget_show_all (window);
-
-  gtk_main ();
-  
-  return 0;
-}