952 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			952 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <gtk/gtk.h>
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#include <glib/gstdio.h>
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#include "demos.h"
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static GtkWidget *info_view;
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static GtkWidget *source_view;
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static gchar *current_file = NULL;
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static GtkWidget *notebook;
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enum {
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  NAME_COLUMN,
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  TITLE_COLUMN,
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  FILENAME_COLUMN,
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  FUNC_COLUMN,
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  STYLE_COLUMN,
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  NUM_COLUMNS
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};
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typedef struct _CallbackData CallbackData;
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struct _CallbackData
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{
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  GtkTreeModel *model;
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  GtkTreePath *path;
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};
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static void
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window_closed_cb (GtkWidget *window, gpointer data)
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{
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  CallbackData *cbdata = data;
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  GtkTreeIter iter;
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  PangoStyle style;
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  gtk_tree_model_get_iter (cbdata->model, &iter, cbdata->path);
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  gtk_tree_model_get (GTK_TREE_MODEL (cbdata->model), &iter,
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                      STYLE_COLUMN, &style,
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                      -1);
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  if (style == PANGO_STYLE_ITALIC)
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    gtk_tree_store_set (GTK_TREE_STORE (cbdata->model), &iter,
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                        STYLE_COLUMN, PANGO_STYLE_NORMAL,
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                        -1);
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  gtk_tree_path_free (cbdata->path);
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  g_free (cbdata);
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}
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/* Stupid syntax highlighting.
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 *
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 * No regex was used in the making of this highlighting.
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 * It should only work for simple cases.  This is good, as
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 * that's all we should have in the demos.
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 */
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/* This code should not be used elsewhere, except perhaps as an example of how
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 * to iterate through a text buffer.
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 */
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enum {
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  STATE_NORMAL,
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  STATE_IN_COMMENT
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};
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static gchar *tokens[] =
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{
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  "/*",
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  "\"",
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  NULL
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};
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static gchar *types[] =
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{
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  "static",
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  "const ",
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  "void",
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  "gint",
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  " int ",
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  " char ",
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  "gchar ",
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  "gfloat",
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  "float",
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  "double",
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  "gint8",
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  "gint16",
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  "gint32",
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  "guint",
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  "guint8",
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  "guint16",
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  "guint32",
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  "guchar",
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  "glong",
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  "gboolean" ,
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  "gshort",
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  "gushort",
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  "gulong",
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  "gdouble",
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  "gldouble",
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  "gpointer",
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  "NULL",
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  "GList",
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  "GSList",
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  "FALSE",
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  "TRUE",
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  "FILE ",
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  "GtkColorSelection ",
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  "GtkWidget ",
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  "GtkButton ",
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  "GdkColor ",
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  "GdkRectangle ",
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  "GdkEventExpose ",
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  "GdkGC ",
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  "GdkPixbufLoader ",
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  "GdkPixbuf ",
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  "GError",
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  "size_t",
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  "GtkAboutDialog ",
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  "GtkAction ",
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  "GtkActionEntry ",
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  "GtkRadioActionEntry ",
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  "GtkIconFactory ",
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  "GtkIconSet ",
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  "GtkTextBuffer ",
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  "GtkStatusbar ",
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  "GtkTextIter ",
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  "GtkTextMark ",
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  "GdkEventWindowState ",
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  "GtkActionGroup ",
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  "GtkUIManager ",
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  "GtkRadioAction ",
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  "GtkActionClass ",
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  "GtkToggleActionEntry ",
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  "GtkAssistant ",
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  "GtkBuilder ",
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  "GtkSizeGroup ",
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  "GtkTreeModel ",
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  "GtkTreeSelection ",
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  "GdkDisplay ",
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  "GdkScreen ",
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  "GdkWindow ",
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  "GdkEventButton ",
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  "GdkCursor ",
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  "GtkTreeIter ",
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  "GtkTreeViewColumn ",
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  "GdkDisplayManager ",
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  "GtkClipboard ",
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  "GtkIconSize ",
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  "GtkImage ",
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  "GdkDragContext ",
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  "GtkSelectionData ",
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  "GtkDialog ",
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  "GtkMenuItem ",
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  "GtkListStore ",
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  "GtkCellLayout ",
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  "GtkCellRenderer ",
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  "GtkTreePath ",
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  "GtkTreeStore ",
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  "GtkEntry ",
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  "GtkEditable ",
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  "GtkEditableInterface ",
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  "GdkPixmap ",
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  "GdkEventConfigure ",
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  "GdkEventMotion ",
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  "GdkModifierType ",
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  "GtkEntryCompletion ",
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  "GtkToolItem ",
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  "GDir ",
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  "GtkIconView ",
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  "GtkCellRendererText ",
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  "GtkContainer ",
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  "GtkAccelGroup ",
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  "GtkPaned ",
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  "GtkPrintOperation ",
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  "GtkPrintContext ",
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  "cairo_t ",
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  "PangoLayout "
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  "PangoFontDescription ",
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  "PangoRenderer ",
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  "PangoMatrix ",
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  "PangoContext ",
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  "PangoLayout ",
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  "GtkTable ",
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  "GtkToggleButton ",
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  "GString ",
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  "GtkIconSize ",
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  "GtkTreeView ",
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  "GtkTextTag ",
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  "GdkEvent ",
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  "GdkEventKey ",
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  "GtkTextView ",
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  "GdkEventVisibility ",
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  "GdkBitmap ",
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  "GtkTextChildAnchor ",
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  "GArray ",
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  "GtkCellEditable ",
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  "GtkCellRendererToggle ",
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  NULL
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};
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static gchar *control[] =
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{
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  " if ",
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  " while ",
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  " else",
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  " do ",
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  " for ",
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  "?",
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  ":",
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  "return ",
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  "goto ",
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  NULL
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};
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void
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parse_chars (gchar     *text,
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             gchar    **end_ptr,
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             gint      *state,
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             gchar    **tag,
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             gboolean   start)
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{
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  gint i;
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  gchar *next_token;
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  /* Handle comments first */
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  if (*state == STATE_IN_COMMENT)
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    {
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      *end_ptr = strstr (text, "*/");
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      if (*end_ptr)
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        {
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          *end_ptr += 2;
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          *state = STATE_NORMAL;
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          *tag = "comment";
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        }
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      return;
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    }
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  *tag = NULL;
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  *end_ptr = NULL;
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  /* check for comment */
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  if (!strncmp (text, "/*", 2))
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    {
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      *end_ptr = strstr (text, "*/");
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      if (*end_ptr)
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        *end_ptr += 2;
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      else
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        *state = STATE_IN_COMMENT;
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      *tag = "comment";
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      return;
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    }
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  /* check for preprocessor defines */
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  if (*text == '#' && start)
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    {
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      *end_ptr = NULL;
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      *tag = "preprocessor";
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      return;
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    }
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  /* functions */
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  if (start && * text != '\t' && *text != ' ' && *text != '{' && *text != '}')
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    {
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      if (strstr (text, "("))
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        {
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          *end_ptr = strstr (text, "(");
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          *tag = "function";
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          return;
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        }
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    }
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  /* check for types */
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  for (i = 0; types[i] != NULL; i++)
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    if (!strncmp (text, types[i], strlen (types[i])) ||
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        (start && types[i][0] == ' ' && !strncmp (text, types[i] + 1, strlen (types[i]) - 1)))
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      {
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        *end_ptr = text + strlen (types[i]);
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        *tag = "type";
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        return;
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      }
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  /* check for control */
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  for (i = 0; control[i] != NULL; i++)
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    if (!strncmp (text, control[i], strlen (control[i])))
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      {
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        *end_ptr = text + strlen (control[i]);
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        *tag = "control";
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        return;
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      }
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  /* check for string */
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  if (text[0] == '"')
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    {
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      gint maybe_escape = FALSE;
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      *end_ptr = text + 1;
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      *tag = "string";
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      while (**end_ptr != '\000')
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        {
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          if (**end_ptr == '\"' && !maybe_escape)
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            {
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              *end_ptr += 1;
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              return;
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            }
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          if (**end_ptr == '\\')
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            maybe_escape = TRUE;
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          else
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            maybe_escape = FALSE;
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          *end_ptr += 1;
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        }
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      return;
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    }
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  /* not at the start of a tag.  Find the next one. */
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  for (i = 0; tokens[i] != NULL; i++)
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    {
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      next_token = strstr (text, tokens[i]);
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      if (next_token)
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        {
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          if (*end_ptr)
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            *end_ptr = (*end_ptr<next_token)?*end_ptr:next_token;
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          else
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            *end_ptr = next_token;
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        }
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    }
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  for (i = 0; types[i] != NULL; i++)
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    {
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      next_token = strstr (text, types[i]);
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      if (next_token)
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        {
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          if (*end_ptr)
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            *end_ptr = (*end_ptr<next_token)?*end_ptr:next_token;
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          else
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            *end_ptr = next_token;
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        }
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    }
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  for (i = 0; control[i] != NULL; i++)
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    {
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      next_token = strstr (text, control[i]);
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      if (next_token)
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        {
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          if (*end_ptr)
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            *end_ptr = (*end_ptr<next_token)?*end_ptr:next_token;
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          else
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            *end_ptr = next_token;
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        }
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    }
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}
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/* While not as cool as c-mode, this will do as a quick attempt at highlighting */
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static void
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fontify (GtkTextBuffer *source_buffer)
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{
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  GtkTextIter start_iter, next_iter, tmp_iter;
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  gint state;
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  gchar *text;
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  gchar *start_ptr, *end_ptr;
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  gchar *tag;
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  state = STATE_NORMAL;
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  gtk_text_buffer_get_iter_at_offset (source_buffer, &start_iter, 0);
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  next_iter = start_iter;
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  while (gtk_text_iter_forward_line (&next_iter))
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    {
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      gboolean start = TRUE;
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      start_ptr = text = gtk_text_iter_get_text (&start_iter, &next_iter);
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      do
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        {
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          parse_chars (start_ptr, &end_ptr, &state, &tag, start);
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          start = FALSE;
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          if (end_ptr)
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            {
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              tmp_iter = start_iter;
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              gtk_text_iter_forward_chars (&tmp_iter, end_ptr - start_ptr);
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            }
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          else
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            {
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              tmp_iter = next_iter;
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            }
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          if (tag)
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            gtk_text_buffer_apply_tag_by_name (source_buffer, tag, &start_iter, &tmp_iter);
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          start_iter = tmp_iter;
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          start_ptr = end_ptr;
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        }
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      while (end_ptr);
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      g_free (text);
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      start_iter = next_iter;
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    }
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}
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static GtkWidget *create_text (GtkWidget **text_view, gboolean is_source);
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static void
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add_data_tab (const gchar *demoname)
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{
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  gchar *resource_dir, *resource_name, *content_type, *content_mime;
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  gchar **resources;
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  GBytes *bytes;
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  GtkWidget *widget, *label;
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  guint i;
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  resource_dir = g_strconcat ("/", demoname, NULL);
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  resources = g_resources_enumerate_children (resource_dir, 0, NULL);
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  if (resources == NULL)
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    {
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      g_free (resource_dir);
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      return;
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    }
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  for (i = 0; resources[i]; i++)
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    {
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      resource_name = g_strconcat (resource_dir, "/", resources[i], NULL);
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      bytes = g_resources_lookup_data (resource_name, 0, NULL);
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      g_assert (bytes);
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      content_type = g_content_type_guess (resource_name,
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                                           g_bytes_get_data (bytes, NULL),
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                                           g_bytes_get_size (bytes),
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                                           NULL);
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      content_mime = g_content_type_get_mime_type (content_type);
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      /* In theory we should look at all the mime types gdk-pixbuf supports
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       * and go from there, but we know what file types we've added.
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       */
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      if (g_content_type_is_a (content_mime, "image/png") ||
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          g_content_type_is_a (content_mime, "image/gif") ||
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          g_content_type_is_a (content_mime, "image/jpeg"))
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        {
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          widget = gtk_image_new_from_resource (resource_name);
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        }
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      else if (g_content_type_is_a (content_mime, "text/plain") ||
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               g_content_type_is_a (content_mime, "application/x-ext-ui") ||
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               g_content_type_is_a (content_mime, "text/css"))
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        {
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						|
          GtkTextBuffer *buffer;
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						|
          GtkWidget *textview;
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          widget = create_text (&textview, FALSE);
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          buffer = gtk_text_buffer_new (NULL);
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          gtk_text_buffer_set_text (buffer, g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes));
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          gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
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        }
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      else
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        {
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          g_warning ("Don't know how to display resource '%s' of type '%s'\n", resource_name, content_mime);
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          widget = NULL;
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        }
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      gtk_widget_show_all (widget);
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      label = gtk_label_new (resources[i]);
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      gtk_widget_show (label);
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      gtk_notebook_append_page (GTK_NOTEBOOK (notebook), widget, label);
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      g_free (content_mime);
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      g_free (content_type);
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						|
      g_free (resource_name);
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      g_bytes_unref (bytes);
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    }
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  g_strfreev (resources);
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  g_free (resource_dir);
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}
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static void
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remove_data_tabs (void)
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{
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  gint i;
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  for (i = gtk_notebook_get_n_pages (GTK_NOTEBOOK (notebook)) - 1; i > 1; i--)
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    gtk_notebook_remove_page (GTK_NOTEBOOK (notebook), i);
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}
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void
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load_file (const gchar *demoname,
 | 
						|
           const gchar *filename)
 | 
						|
{
 | 
						|
  GtkTextBuffer *info_buffer, *source_buffer;
 | 
						|
  GtkTextIter start, end;
 | 
						|
  char *resource_filename;
 | 
						|
  GError *err = NULL;
 | 
						|
  int state = 0;
 | 
						|
  gboolean in_para = 0;
 | 
						|
  gchar **lines;
 | 
						|
  GBytes *bytes;
 | 
						|
  gint i;
 | 
						|
 | 
						|
  if (!g_strcmp0 (current_file, filename))
 | 
						|
    return;
 | 
						|
 | 
						|
  remove_data_tabs ();
 | 
						|
 | 
						|
  add_data_tab (demoname);
 | 
						|
 | 
						|
  g_free (current_file);
 | 
						|
  current_file = g_strdup (filename);
 | 
						|
 | 
						|
  info_buffer = gtk_text_buffer_new (NULL);
 | 
						|
  gtk_text_buffer_create_tag (info_buffer, "title",
 | 
						|
                              "font", "Sans 18",
 | 
						|
                              "pixels-below-lines", 10,
 | 
						|
                              NULL);
 | 
						|
 | 
						|
  source_buffer = gtk_text_buffer_new (NULL);
 | 
						|
  gtk_text_buffer_create_tag (source_buffer, "comment",
 | 
						|
                              "foreground", "DodgerBlue",
 | 
						|
                              NULL);
 | 
						|
  gtk_text_buffer_create_tag (source_buffer, "type",
 | 
						|
                              "foreground", "ForestGreen",
 | 
						|
                              NULL);
 | 
						|
  gtk_text_buffer_create_tag (source_buffer, "string",
 | 
						|
                              "foreground", "RosyBrown",
 | 
						|
                              "weight", PANGO_WEIGHT_BOLD,
 | 
						|
                              NULL);
 | 
						|
  gtk_text_buffer_create_tag (source_buffer, "control",
 | 
						|
                              "foreground", "purple",
 | 
						|
                              NULL);
 | 
						|
  gtk_text_buffer_create_tag (source_buffer, "preprocessor",
 | 
						|
                              "style", PANGO_STYLE_OBLIQUE,
 | 
						|
                              "foreground", "burlywood4",
 | 
						|
                              NULL);
 | 
						|
  gtk_text_buffer_create_tag (source_buffer, "function",
 | 
						|
                              "weight", PANGO_WEIGHT_BOLD,
 | 
						|
                              "foreground", "DarkGoldenrod4",
 | 
						|
                              NULL);
 | 
						|
 | 
						|
  resource_filename = g_strconcat ("/sources/", filename, NULL);
 | 
						|
  bytes = g_resources_lookup_data (resource_filename, 0, &err);
 | 
						|
  g_free (resource_filename);
 | 
						|
 | 
						|
  if (bytes == NULL)
 | 
						|
    {
 | 
						|
      g_warning ("Cannot open source for %s: %s\n", filename, err->message);
 | 
						|
      g_error_free (err);
 | 
						|
      return;
 | 
						|
    }
 | 
						|
 | 
						|
  lines = g_strsplit (g_bytes_get_data (bytes, NULL), "\n", -1);
 | 
						|
  g_bytes_unref (bytes);
 | 
						|
 | 
						|
  gtk_text_buffer_get_iter_at_offset (info_buffer, &start, 0);
 | 
						|
  for (i = 0; lines[i] != NULL; i++)
 | 
						|
    {
 | 
						|
      gchar *p;
 | 
						|
      gchar *q;
 | 
						|
      gchar *r;
 | 
						|
 | 
						|
      /* Make sure \r is stripped at the end for the poor windows people */
 | 
						|
      lines[i] = g_strchomp (lines[i]);
 | 
						|
 | 
						|
      p = lines[i];
 | 
						|
      switch (state)
 | 
						|
        {
 | 
						|
        case 0:
 | 
						|
          /* Reading title */
 | 
						|
          while (*p == '/' || *p == '*' || g_ascii_isspace (*p))
 | 
						|
            p++;
 | 
						|
          r = p;
 | 
						|
          while (*r != '\0')
 | 
						|
            {
 | 
						|
              while (*r != '/' && *r != ':' && *r != '\0')
 | 
						|
                r++;
 | 
						|
              if (*r == '/')
 | 
						|
                {
 | 
						|
                  r++;
 | 
						|
                  p = r;
 | 
						|
                }
 | 
						|
              if (r[0] == ':' && r[1] == ':')
 | 
						|
                *r = '\0';
 | 
						|
            }
 | 
						|
          q = p + strlen (p);
 | 
						|
          while (q > p && g_ascii_isspace (*(q - 1)))
 | 
						|
            q--;
 | 
						|
 | 
						|
 | 
						|
          if (q > p)
 | 
						|
            {
 | 
						|
              int len_chars = g_utf8_pointer_to_offset (p, q);
 | 
						|
 | 
						|
              end = start;
 | 
						|
 | 
						|
              g_assert (strlen (p) >= q - p);
 | 
						|
              gtk_text_buffer_insert (info_buffer, &end, p, q - p);
 | 
						|
              start = end;
 | 
						|
 | 
						|
              gtk_text_iter_backward_chars (&start, len_chars);
 | 
						|
              gtk_text_buffer_apply_tag_by_name (info_buffer, "title", &start, &end);
 | 
						|
 | 
						|
              start = end;
 | 
						|
 | 
						|
              while (*p && *p != '\n') p++;
 | 
						|
 | 
						|
              state++;
 | 
						|
            }
 | 
						|
          break;
 | 
						|
 | 
						|
        case 1:
 | 
						|
          /* Reading body of info section */
 | 
						|
          while (g_ascii_isspace (*p))
 | 
						|
            p++;
 | 
						|
          if (*p == '*' && *(p + 1) == '/')
 | 
						|
            {
 | 
						|
              gtk_text_buffer_get_iter_at_offset (source_buffer, &start, 0);
 | 
						|
              state++;
 | 
						|
            }
 | 
						|
          else
 | 
						|
            {
 | 
						|
              int len;
 | 
						|
 | 
						|
              while (*p == '*' || g_ascii_isspace (*p))
 | 
						|
                p++;
 | 
						|
 | 
						|
              len = strlen (p);
 | 
						|
              while (g_ascii_isspace (*(p + len - 1)))
 | 
						|
                len--;
 | 
						|
 | 
						|
              if (len > 0)
 | 
						|
                {
 | 
						|
                  if (in_para)
 | 
						|
                    gtk_text_buffer_insert (info_buffer, &start, " ", 1);
 | 
						|
 | 
						|
                  g_assert (strlen (p) >= len);
 | 
						|
                  gtk_text_buffer_insert (info_buffer, &start, p, len);
 | 
						|
                  in_para = 1;
 | 
						|
                }
 | 
						|
              else
 | 
						|
                {
 | 
						|
                  gtk_text_buffer_insert (info_buffer, &start, "\n", 1);
 | 
						|
                  in_para = 0;
 | 
						|
                }
 | 
						|
            }
 | 
						|
          break;
 | 
						|
 | 
						|
        case 2:
 | 
						|
          /* Skipping blank lines */
 | 
						|
          while (g_ascii_isspace (*p))
 | 
						|
            p++;
 | 
						|
          if (*p)
 | 
						|
            {
 | 
						|
              p = lines[i];
 | 
						|
              state++;
 | 
						|
              /* Fall through */
 | 
						|
            }
 | 
						|
          else
 | 
						|
            break;
 | 
						|
 | 
						|
        case 3:
 | 
						|
          /* Reading program body */
 | 
						|
          gtk_text_buffer_insert (source_buffer, &start, p, -1);
 | 
						|
          gtk_text_buffer_insert (source_buffer, &start, "\n", 1);
 | 
						|
          break;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
  fontify (source_buffer);
 | 
						|
 | 
						|
  g_strfreev (lines);
 | 
						|
 | 
						|
  gtk_text_view_set_buffer (GTK_TEXT_VIEW (info_view), info_buffer);
 | 
						|
  g_object_unref (info_buffer);
 | 
						|
  gtk_text_view_set_buffer (GTK_TEXT_VIEW (source_view), source_buffer);
 | 
						|
  g_object_unref (source_buffer);
 | 
						|
}
 | 
						|
 | 
						|
void
 | 
						|
row_activated_cb (GtkTreeView       *tree_view,
 | 
						|
                  GtkTreePath       *path,
 | 
						|
                  GtkTreeViewColumn *column)
 | 
						|
{
 | 
						|
  GtkTreeIter iter;
 | 
						|
  PangoStyle style;
 | 
						|
  GDoDemoFunc func;
 | 
						|
  GtkWidget *window;
 | 
						|
  GtkTreeModel *model;
 | 
						|
 | 
						|
  model = gtk_tree_view_get_model (tree_view);
 | 
						|
 | 
						|
  gtk_tree_model_get_iter (model, &iter, path);
 | 
						|
  gtk_tree_model_get (GTK_TREE_MODEL (model),
 | 
						|
                      &iter,
 | 
						|
                      FUNC_COLUMN, &func,
 | 
						|
                      STYLE_COLUMN, &style,
 | 
						|
                      -1);
 | 
						|
 | 
						|
  if (func)
 | 
						|
    {
 | 
						|
      gtk_tree_store_set (GTK_TREE_STORE (model),
 | 
						|
                          &iter,
 | 
						|
                          STYLE_COLUMN, (style == PANGO_STYLE_ITALIC ? PANGO_STYLE_NORMAL : PANGO_STYLE_ITALIC),
 | 
						|
                          -1);
 | 
						|
      window = (func) (gtk_widget_get_toplevel (GTK_WIDGET (tree_view)));
 | 
						|
 | 
						|
      if (window != NULL)
 | 
						|
        {
 | 
						|
          CallbackData *cbdata;
 | 
						|
 | 
						|
          cbdata = g_new (CallbackData, 1);
 | 
						|
          cbdata->model = model;
 | 
						|
          cbdata->path = gtk_tree_path_copy (path);
 | 
						|
 | 
						|
          g_signal_connect (window, "destroy",
 | 
						|
                            G_CALLBACK (window_closed_cb), cbdata);
 | 
						|
        }
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
static void
 | 
						|
selection_cb (GtkTreeSelection *selection,
 | 
						|
              GtkTreeModel     *model)
 | 
						|
{
 | 
						|
  GtkTreeIter iter;
 | 
						|
  char *name, *filename;
 | 
						|
 | 
						|
  if (! gtk_tree_selection_get_selected (selection, NULL, &iter))
 | 
						|
    return;
 | 
						|
 | 
						|
  gtk_tree_model_get (model, &iter,
 | 
						|
                      NAME_COLUMN, &name,
 | 
						|
                      FILENAME_COLUMN, &filename,
 | 
						|
                      -1);
 | 
						|
 | 
						|
  if (filename)
 | 
						|
    load_file (name, filename);
 | 
						|
 | 
						|
  g_free (name);
 | 
						|
  g_free (filename);
 | 
						|
}
 | 
						|
 | 
						|
static GtkWidget *
 | 
						|
create_text (GtkWidget **view,
 | 
						|
             gboolean    is_source)
 | 
						|
{
 | 
						|
  GtkWidget *scrolled_window;
 | 
						|
  GtkWidget *text_view;
 | 
						|
  PangoFontDescription *font_desc;
 | 
						|
 | 
						|
  scrolled_window = gtk_scrolled_window_new (NULL, NULL);
 | 
						|
  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
 | 
						|
                                  GTK_POLICY_AUTOMATIC,
 | 
						|
                                  GTK_POLICY_AUTOMATIC);
 | 
						|
  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
 | 
						|
                                       GTK_SHADOW_IN);
 | 
						|
 | 
						|
  *view = text_view = gtk_text_view_new ();
 | 
						|
  g_object_set (text_view, "margin", 20, NULL);
 | 
						|
 | 
						|
  gtk_text_view_set_editable (GTK_TEXT_VIEW (text_view), FALSE);
 | 
						|
  gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (text_view), FALSE);
 | 
						|
 | 
						|
  gtk_container_add (GTK_CONTAINER (scrolled_window), text_view);
 | 
						|
 | 
						|
  if (is_source)
 | 
						|
    {
 | 
						|
      font_desc = pango_font_description_from_string ("monospace");
 | 
						|
      gtk_widget_override_font (text_view, font_desc);
 | 
						|
      pango_font_description_free (font_desc);
 | 
						|
 | 
						|
      gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view),
 | 
						|
                                   GTK_WRAP_NONE);
 | 
						|
    }
 | 
						|
  else
 | 
						|
    {
 | 
						|
      /* Make it a bit nicer for text. */
 | 
						|
      gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view),
 | 
						|
                                   GTK_WRAP_WORD);
 | 
						|
      gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (text_view),
 | 
						|
                                            2);
 | 
						|
      gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (text_view),
 | 
						|
                                            2);
 | 
						|
    }
 | 
						|
 | 
						|
  return scrolled_window;
 | 
						|
}
 | 
						|
 | 
						|
static GtkWidget *
 | 
						|
create_tree (void)
 | 
						|
{
 | 
						|
  GtkTreeSelection *selection;
 | 
						|
  GtkCellRenderer *cell;
 | 
						|
  GtkWidget *tree_view;
 | 
						|
  GtkTreeViewColumn *column;
 | 
						|
  GtkTreeStore *model;
 | 
						|
  GtkTreeIter iter;
 | 
						|
  GtkWidget *box, *label, *scrolled_window;
 | 
						|
 | 
						|
  Demo *d = gtk_demos;
 | 
						|
 | 
						|
  model = gtk_tree_store_new (NUM_COLUMNS, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_INT);
 | 
						|
  tree_view = gtk_tree_view_new ();
 | 
						|
  gtk_tree_view_set_model (GTK_TREE_VIEW (tree_view), GTK_TREE_MODEL (model));
 | 
						|
  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
 | 
						|
 | 
						|
  gtk_tree_selection_set_mode (GTK_TREE_SELECTION (selection),
 | 
						|
                               GTK_SELECTION_BROWSE);
 | 
						|
  gtk_widget_set_size_request (tree_view, 200, -1);
 | 
						|
 | 
						|
  /* this code only supports 1 level of children. If we
 | 
						|
   * want more we probably have to use a recursing function.
 | 
						|
   */
 | 
						|
  while (d->title)
 | 
						|
    {
 | 
						|
      Demo *children = d->children;
 | 
						|
 | 
						|
      gtk_tree_store_append (GTK_TREE_STORE (model), &iter, NULL);
 | 
						|
 | 
						|
      gtk_tree_store_set (GTK_TREE_STORE (model),
 | 
						|
                          &iter,
 | 
						|
                          NAME_COLUMN, d->name,
 | 
						|
                          TITLE_COLUMN, d->title,
 | 
						|
                          FILENAME_COLUMN, d->filename,
 | 
						|
                          FUNC_COLUMN, d->func,
 | 
						|
                          STYLE_COLUMN, PANGO_STYLE_NORMAL,
 | 
						|
                          -1);
 | 
						|
 | 
						|
      d++;
 | 
						|
 | 
						|
      if (!children)
 | 
						|
        continue;
 | 
						|
 | 
						|
      while (children->title)
 | 
						|
        {
 | 
						|
          GtkTreeIter child_iter;
 | 
						|
 | 
						|
          gtk_tree_store_append (GTK_TREE_STORE (model), &child_iter, &iter);
 | 
						|
 | 
						|
          gtk_tree_store_set (GTK_TREE_STORE (model),
 | 
						|
                              &child_iter,
 | 
						|
                              NAME_COLUMN, children->name,
 | 
						|
                              TITLE_COLUMN, children->title,
 | 
						|
                              FILENAME_COLUMN, children->filename,
 | 
						|
                              FUNC_COLUMN, children->func,
 | 
						|
                              STYLE_COLUMN, PANGO_STYLE_NORMAL,
 | 
						|
                              -1);
 | 
						|
 | 
						|
          children++;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
  cell = gtk_cell_renderer_text_new ();
 | 
						|
 | 
						|
  column = gtk_tree_view_column_new_with_attributes ("Widget (double click for demo)",
 | 
						|
                                                     cell,
 | 
						|
                                                     "text", TITLE_COLUMN,
 | 
						|
                                                     "style", STYLE_COLUMN,
 | 
						|
                                                     NULL);
 | 
						|
 | 
						|
  gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view),
 | 
						|
                               GTK_TREE_VIEW_COLUMN (column));
 | 
						|
 | 
						|
  gtk_tree_model_get_iter_first (GTK_TREE_MODEL (model), &iter);
 | 
						|
  gtk_tree_selection_select_iter (GTK_TREE_SELECTION (selection), &iter);
 | 
						|
 | 
						|
  g_signal_connect (selection, "changed", G_CALLBACK (selection_cb), model);
 | 
						|
  g_signal_connect (tree_view, "row_activated", G_CALLBACK (row_activated_cb), model);
 | 
						|
 | 
						|
  gtk_tree_view_collapse_all (GTK_TREE_VIEW (tree_view));
 | 
						|
  gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (tree_view), FALSE);
 | 
						|
 | 
						|
  scrolled_window = gtk_scrolled_window_new (NULL, NULL);
 | 
						|
  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
 | 
						|
                                  GTK_POLICY_NEVER,
 | 
						|
                                  GTK_POLICY_AUTOMATIC);
 | 
						|
  gtk_container_add (GTK_CONTAINER (scrolled_window), tree_view);
 | 
						|
 | 
						|
  label = gtk_label_new ("Widget (double click for demo)");
 | 
						|
 | 
						|
  box = gtk_notebook_new ();
 | 
						|
  gtk_notebook_append_page (GTK_NOTEBOOK (box), scrolled_window, label);
 | 
						|
 | 
						|
  gtk_widget_grab_focus (tree_view);
 | 
						|
 | 
						|
   g_object_unref (model);
 | 
						|
 | 
						|
  return box;
 | 
						|
}
 | 
						|
 | 
						|
static void
 | 
						|
setup_default_icon (void)
 | 
						|
{
 | 
						|
  GdkPixbuf *pixbuf;
 | 
						|
 | 
						|
  pixbuf = gdk_pixbuf_new_from_resource ("/gtk-logo-old.png", NULL);
 | 
						|
  /* We load a resource, so we can guarantee that loading it is successful */
 | 
						|
  g_assert (pixbuf);
 | 
						|
 | 
						|
  gtk_window_set_default_icon (pixbuf);
 | 
						|
  
 | 
						|
  g_object_unref (pixbuf);
 | 
						|
}
 | 
						|
 | 
						|
int
 | 
						|
main (int argc, char **argv)
 | 
						|
{
 | 
						|
  GtkWidget *window;
 | 
						|
  GtkWidget *hbox;
 | 
						|
  GtkWidget *tree;
 | 
						|
 | 
						|
  /* Most code in gtk-demo is intended to be exemplary, but not
 | 
						|
   * these few lines, which are just a hack so gtk-demo will work
 | 
						|
   * in the GTK tree without installing it.
 | 
						|
   */
 | 
						|
  if (g_file_test ("../../modules/input/immodules.cache", G_FILE_TEST_EXISTS))
 | 
						|
    {
 | 
						|
      g_setenv ("GTK_IM_MODULE_FILE", "../../modules/input/immodules.cache", TRUE);
 | 
						|
    }
 | 
						|
  /* -- End of hack -- */
 | 
						|
 | 
						|
  gtk_init (&argc, &argv);
 | 
						|
 | 
						|
  setup_default_icon ();
 | 
						|
 | 
						|
  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 | 
						|
  gtk_window_set_title (GTK_WINDOW (window), "GTK+ Code Demos");
 | 
						|
  g_signal_connect_after (window, "destroy",
 | 
						|
                    G_CALLBACK (gtk_main_quit), NULL);
 | 
						|
 | 
						|
  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
 | 
						|
  gtk_container_add (GTK_CONTAINER (window), hbox);
 | 
						|
 | 
						|
  tree = create_tree ();
 | 
						|
  gtk_box_pack_start (GTK_BOX (hbox), tree, FALSE, FALSE, 0);
 | 
						|
 | 
						|
  notebook = gtk_notebook_new ();
 | 
						|
  gtk_notebook_set_scrollable (GTK_NOTEBOOK (notebook), TRUE);
 | 
						|
  gtk_box_pack_start (GTK_BOX (hbox), notebook, TRUE, TRUE, 0);
 | 
						|
 | 
						|
  gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
 | 
						|
                            create_text (&info_view, FALSE),
 | 
						|
                            gtk_label_new_with_mnemonic ("_Info"));
 | 
						|
 | 
						|
  gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
 | 
						|
                            create_text (&source_view, TRUE),
 | 
						|
                            gtk_label_new_with_mnemonic ("_Source"));
 | 
						|
 | 
						|
  gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
 | 
						|
  gtk_widget_show_all (window);
 | 
						|
 | 
						|
  load_file (gtk_demos[0].name, gtk_demos[0].filename);
 | 
						|
 | 
						|
  gtk_main ();
 | 
						|
 | 
						|
  return 0;
 | 
						|
}
 |