1010 lines
25 KiB
C
1010 lines
25 KiB
C
#include "config.h"
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#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 GtkTextBuffer *info_buffer;
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static GtkTextBuffer *source_buffer;
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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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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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#ifdef G_OS_WIN32
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#undef DEMOCODEDIR
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static char *
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get_democodedir (void)
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{
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static char *result = NULL;
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if (result == NULL)
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{
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result = g_win32_get_package_installation_directory_of_module (NULL);
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if (result == NULL)
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result = "unknown-location";
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result = g_strconcat (result, "\\share\\gtk-3.0\\demo", NULL);
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}
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return result;
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}
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#define DEMOCODEDIR get_democodedir ()
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#endif
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/**
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* demo_find_file:
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* @base: base filename
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* @err: location to store error, or %NULL.
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*
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* Looks for @base first in the current directory, then in the
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* location GTK+ where it will be installed on make install,
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* returns the first file found.
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*
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* Return value: the filename, if found or %NULL
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*/
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gchar *
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demo_find_file (const char *base,
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GError **err)
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{
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g_return_val_if_fail (err == NULL || *err == NULL, NULL);
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if (g_file_test ("gtk-logo-rgb.gif", G_FILE_TEST_EXISTS) &&
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g_file_test (base, G_FILE_TEST_EXISTS))
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return g_strdup (base);
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else
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{
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char *filename = g_build_filename (DEMOCODEDIR, base, NULL);
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if (!g_file_test (filename, G_FILE_TEST_EXISTS))
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{
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g_set_error (err, G_FILE_ERROR, G_FILE_ERROR_NOENT,
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"Cannot find demo data file \"%s\"", base);
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g_free (filename);
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return NULL;
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}
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return filename;
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}
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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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"GtkStockItem ",
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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 (void)
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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 (GtkTextBuffer **buffer, gboolean is_source);
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static void
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add_data_tab (const gchar *filename)
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{
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GtkTextBuffer *buffer = NULL;
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gchar *full_filename;
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GError *err = NULL;
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gchar *text;
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GtkWidget *widget, *label;
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full_filename = demo_find_file (filename, &err);
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if (!full_filename ||
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!g_file_get_contents (full_filename, &text, NULL, &err))
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{
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g_warning ("%s", err->message);
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g_error_free (err);
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return;
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}
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widget = create_text (&buffer, FALSE);
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gtk_widget_show_all (widget);
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label = gtk_label_new (filename);
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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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gtk_text_buffer_set_text (buffer, text, -1);
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g_free (full_filename);
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g_free (text);
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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 *filename)
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{
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GtkTextIter start, end;
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char *resource_filename;
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GError *err = NULL;
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int state = 0;
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gboolean in_para = 0;
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gchar **names, **lines;
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GBytes *bytes;
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gint i;
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remove_data_tabs ();
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names = g_strsplit (filename, " ", -1);
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for (i = 1; names[i]; i++) {
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if (strlen (names[i]) > 0)
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add_data_tab (names[i]);
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}
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|
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if (current_file && !strcmp (current_file, names[0]))
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goto out;
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g_free (current_file);
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current_file = g_strdup (names[0]);
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gtk_text_buffer_get_bounds (info_buffer, &start, &end);
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gtk_text_buffer_delete (info_buffer, &start, &end);
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gtk_text_buffer_get_bounds (source_buffer, &start, &end);
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gtk_text_buffer_delete (source_buffer, &start, &end);
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resource_filename = g_strconcat ("/sources/", names[0], NULL);
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bytes = g_resources_lookup_data (resource_filename, 0, &err);
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g_free (resource_filename);
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|
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if (bytes == NULL)
|
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{
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g_warning ("Cannot open source for %s: %s\n", names[0], err->message);
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g_error_free (err);
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goto out;
|
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}
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|
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lines = g_strsplit (g_bytes_get_data (bytes, NULL), "\n", -1);
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g_bytes_unref (bytes);
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|
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gtk_text_buffer_get_iter_at_offset (info_buffer, &start, 0);
|
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for (i = 0; lines[i] != NULL; i++)
|
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{
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gchar *p;
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gchar *q;
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gchar *r;
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|
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/* Make sure \r is stripped at the end for the poor windows people */
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lines[i] = g_strchomp (lines[i]);
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p = lines[i];
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switch (state)
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{
|
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case 0:
|
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/* Reading title */
|
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while (*p == '/' || *p == '*' || g_ascii_isspace (*p))
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p++;
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r = p;
|
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while (*r != '\0')
|
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{
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while (*r != '/' && *r != ':' && *r != '\0')
|
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r++;
|
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if (*r == '/')
|
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{
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r++;
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p = r;
|
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}
|
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if (r[0] == ':' && r[1] == ':')
|
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*r = '\0';
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}
|
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q = p + strlen (p);
|
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while (q > p && g_ascii_isspace (*(q - 1)))
|
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q--;
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|
|
|
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if (q > p)
|
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{
|
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int len_chars = g_utf8_pointer_to_offset (p, q);
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|
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end = start;
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|
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g_assert (strlen (p) >= q - p);
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|
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 ();
|
|
|
|
g_strfreev (lines);
|
|
|
|
out:
|
|
g_strfreev (names);
|
|
}
|
|
|
|
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;
|
|
GValue value = G_VALUE_INIT;
|
|
|
|
if (! gtk_tree_selection_get_selected (selection, NULL, &iter))
|
|
return;
|
|
|
|
gtk_tree_model_get_value (model, &iter,
|
|
FILENAME_COLUMN,
|
|
&value);
|
|
if (g_value_get_string (&value))
|
|
load_file (g_value_get_string (&value));
|
|
g_value_unset (&value);
|
|
}
|
|
|
|
static GtkWidget *
|
|
create_text (GtkTextBuffer **buffer,
|
|
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);
|
|
|
|
text_view = gtk_text_view_new ();
|
|
|
|
*buffer = gtk_text_buffer_new (NULL);
|
|
gtk_text_view_set_buffer (GTK_TEXT_VIEW (text_view), *buffer);
|
|
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_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,
|
|
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,
|
|
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;
|
|
char *filename;
|
|
GError *err;
|
|
|
|
err = NULL;
|
|
|
|
pixbuf = NULL;
|
|
filename = demo_find_file ("gtk-logo-rgb.gif", &err);
|
|
if (filename)
|
|
{
|
|
pixbuf = gdk_pixbuf_new_from_file (filename, &err);
|
|
g_free (filename);
|
|
}
|
|
|
|
/* Ignoring this error (passing NULL instead of &err above)
|
|
* would probably be reasonable for most apps. We're just
|
|
* showing off.
|
|
*/
|
|
if (err)
|
|
{
|
|
GtkWidget *dialog;
|
|
|
|
dialog = gtk_message_dialog_new (NULL, 0,
|
|
GTK_MESSAGE_ERROR,
|
|
GTK_BUTTONS_CLOSE,
|
|
"Failed to read icon file: %s",
|
|
err->message);
|
|
g_error_free (err);
|
|
|
|
g_signal_connect (dialog, "response",
|
|
G_CALLBACK (gtk_widget_destroy), NULL);
|
|
}
|
|
|
|
if (pixbuf)
|
|
{
|
|
GList *list;
|
|
GdkPixbuf *transparent;
|
|
|
|
/* The gtk-logo-rgb icon has a white background, make it transparent */
|
|
transparent = gdk_pixbuf_add_alpha (pixbuf, TRUE, 0xff, 0xff, 0xff);
|
|
|
|
list = NULL;
|
|
list = g_list_append (list, transparent);
|
|
gtk_window_set_default_icon_list (list);
|
|
g_list_free (list);
|
|
g_object_unref (pixbuf);
|
|
g_object_unref (transparent);
|
|
}
|
|
}
|
|
|
|
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_box_pack_start (GTK_BOX (hbox), notebook, TRUE, TRUE, 0);
|
|
|
|
gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
|
|
create_text (&info_buffer, FALSE),
|
|
gtk_label_new_with_mnemonic ("_Info"));
|
|
|
|
gtk_text_buffer_create_tag (info_buffer, "title",
|
|
"font", "Sans 18",
|
|
NULL);
|
|
g_object_unref (info_buffer);
|
|
|
|
gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
|
|
create_text (&source_buffer, TRUE),
|
|
gtk_label_new_with_mnemonic ("_Source"));
|
|
|
|
|
|
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);
|
|
g_object_unref (source_buffer);
|
|
|
|
gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
|
|
gtk_widget_show_all (window);
|
|
|
|
load_file (gtk_demos[0].filename);
|
|
|
|
gtk_main ();
|
|
|
|
return 0;
|
|
}
|