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gtk-demo: Create new textbuffers for new source/info texts
This is so we can prepare these buffers without them being set on the widgets yet and only gtk_text_view_set_buffer() them afterwards. And this in turn gets rid of all the a11y events we were needlessly emitting. https://bugzilla.gnome.org/show_bug.cgi?id=694406
This commit is contained in:
Benjamin Otte
parent
399ffbb230
commit
46ef9a83bb
@ -9,8 +9,8 @@
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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 GtkWidget *info_view;
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static GtkWidget *source_view;
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static gchar *current_file = NULL;
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@ -353,7 +353,7 @@ parse_chars (gchar *text,
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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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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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@ -398,12 +398,11 @@ fontify (void)
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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 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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GtkTextBuffer *buffer = NULL;
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gchar *resource_dir, *resource_name, *content_type;
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gchar **resources;
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GBytes *bytes;
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@ -440,8 +439,13 @@ add_data_tab (const gchar *demoname)
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}
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else if (g_content_type_is_a (content_type, "text/plain"))
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{
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widget = create_text (&buffer, FALSE);
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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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@ -476,6 +480,7 @@ void
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load_file (const gchar *demoname,
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const gchar *filename)
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{
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GtkTextBuffer *info_buffer, *source_buffer;
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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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@ -495,11 +500,34 @@ load_file (const gchar *demoname,
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g_free (current_file);
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current_file = g_strdup (filename);
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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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info_buffer = gtk_text_buffer_new (NULL);
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gtk_text_buffer_create_tag (info_buffer, "title",
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"font", "Sans 18",
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"pixels-below-lines", 10,
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NULL);
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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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source_buffer = gtk_text_buffer_new (NULL);
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gtk_text_buffer_create_tag (source_buffer, "comment",
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"foreground", "DodgerBlue",
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NULL);
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gtk_text_buffer_create_tag (source_buffer, "type",
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"foreground", "ForestGreen",
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NULL);
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gtk_text_buffer_create_tag (source_buffer, "string",
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"foreground", "RosyBrown",
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"weight", PANGO_WEIGHT_BOLD,
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NULL);
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gtk_text_buffer_create_tag (source_buffer, "control",
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"foreground", "purple",
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NULL);
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gtk_text_buffer_create_tag (source_buffer, "preprocessor",
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"style", PANGO_STYLE_OBLIQUE,
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"foreground", "burlywood4",
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NULL);
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gtk_text_buffer_create_tag (source_buffer, "function",
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"weight", PANGO_WEIGHT_BOLD,
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"foreground", "DarkGoldenrod4",
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NULL);
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resource_filename = g_strconcat ("/sources/", filename, NULL);
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bytes = g_resources_lookup_data (resource_filename, 0, &err);
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@ -629,9 +657,14 @@ load_file (const gchar *demoname,
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}
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}
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fontify ();
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fontify (source_buffer);
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g_strfreev (lines);
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gtk_text_view_set_buffer (GTK_TEXT_VIEW (info_view), info_buffer);
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g_object_unref (info_buffer);
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gtk_text_view_set_buffer (GTK_TEXT_VIEW (source_view), source_buffer);
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g_object_unref (source_buffer);
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}
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void
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@ -699,8 +732,8 @@ selection_cb (GtkTreeSelection *selection,
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}
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static GtkWidget *
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create_text (GtkTextBuffer **buffer,
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gboolean is_source)
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create_text (GtkWidget **view,
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gboolean is_source)
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{
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GtkWidget *scrolled_window;
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GtkWidget *text_view;
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@ -713,11 +746,9 @@ create_text (GtkTextBuffer **buffer,
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gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
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GTK_SHADOW_IN);
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text_view = gtk_text_view_new ();
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*view = text_view = gtk_text_view_new ();
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g_object_set (text_view, "margin", 20, NULL);
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*buffer = gtk_text_buffer_new (NULL);
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gtk_text_view_set_buffer (GTK_TEXT_VIEW (text_view), *buffer);
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gtk_text_view_set_editable (GTK_TEXT_VIEW (text_view), FALSE);
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gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (text_view), FALSE);
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@ -899,43 +930,13 @@ main (int argc, char **argv)
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gtk_box_pack_start (GTK_BOX (hbox), notebook, TRUE, TRUE, 0);
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gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
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create_text (&info_buffer, FALSE),
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create_text (&info_view, FALSE),
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gtk_label_new_with_mnemonic ("_Info"));
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gtk_text_buffer_create_tag (info_buffer, "title",
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"font", "Sans 18",
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"pixels-below-lines", 10,
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NULL);
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g_object_unref (info_buffer);
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gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
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create_text (&source_buffer, TRUE),
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create_text (&source_view, TRUE),
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gtk_label_new_with_mnemonic ("_Source"));
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gtk_text_buffer_create_tag (source_buffer, "comment",
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"foreground", "DodgerBlue",
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NULL);
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gtk_text_buffer_create_tag (source_buffer, "type",
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"foreground", "ForestGreen",
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NULL);
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gtk_text_buffer_create_tag (source_buffer, "string",
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"foreground", "RosyBrown",
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"weight", PANGO_WEIGHT_BOLD,
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NULL);
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gtk_text_buffer_create_tag (source_buffer, "control",
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"foreground", "purple",
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NULL);
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gtk_text_buffer_create_tag (source_buffer, "preprocessor",
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"style", PANGO_STYLE_OBLIQUE,
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"foreground", "burlywood4",
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NULL);
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gtk_text_buffer_create_tag (source_buffer, "function",
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"weight", PANGO_WEIGHT_BOLD,
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"foreground", "DarkGoldenrod4",
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NULL);
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g_object_unref (source_buffer);
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gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
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gtk_widget_show_all (window);
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