Default font for textbuffer should be a serif font.
[rodin/chimara.git] / libchimara / chimara-glk.c
index eae3988b1fb7a25afa9e29fee8e6640af49de289..c9bb7cc25d97ae8d393e8bedd4c155b34cf6b568 100644 (file)
@@ -25,7 +25,7 @@
  * @stability: Unstable
  * @include: chimara/chimara-glk.h
  * 
- * The ChimaraGlk widget opens and runs a Glk program. The program must be
+ * The #ChimaraGlk widget opens and runs a Glk program. The program must be
  * compiled as a plugin module, with a function <function>glk_main()</function>
  * that the Glk library can hook into.
  *
@@ -81,7 +81,7 @@ chimara_glk_init(ChimaraGlk *self)
     priv->self = self;
     priv->interactive = TRUE;
     priv->protect = FALSE;
-       priv->default_font_desc = pango_font_description_from_string("Sans");
+       priv->default_font_desc = pango_font_description_from_string("Serif");
        priv->monospace_font_desc = pango_font_description_from_string("Monospace");
        priv->css_file = "style.css";
        priv->default_styles = g_new0(StyleSet,1);
@@ -99,12 +99,16 @@ chimara_glk_init(ChimaraGlk *self)
        priv->rearranged = g_cond_new();
        priv->needs_rearrange = FALSE;
        priv->ignore_next_arrange_event = FALSE;
-    priv->interrupt_handler = NULL;
+       priv->char_input_queue = g_async_queue_new();
+       priv->line_input_queue = g_async_queue_new();
+       /* Should be g_async_queue_new_full(g_free); but only in GTK >= 2.16 */
+       priv->interrupt_handler = NULL;
     priv->root_window = NULL;
     priv->fileref_list = NULL;
     priv->current_stream = NULL;
     priv->stream_list = NULL;
        priv->timer_id = 0;
+       priv->style_initialized = FALSE;
        priv->in_startup = FALSE;
        priv->current_dir = NULL;
 }
@@ -179,25 +183,32 @@ chimara_glk_finalize(GObject *object)
        g_mutex_unlock(priv->event_lock);
        g_mutex_free(priv->event_lock);
        
-       /* Free the abort signalling mechanism */
+       /* Free the abort signaling mechanism */
        g_mutex_lock(priv->abort_lock);
        /* Make sure no other thread is busy with this */
        g_mutex_unlock(priv->abort_lock);
        g_mutex_free(priv->abort_lock);
        priv->abort_lock = NULL;
 
-       /* Free the window arrangement signalling */
+       /* Free the window arrangement signaling */
        g_mutex_lock(priv->arrange_lock);
        g_cond_free(priv->rearranged);
        g_mutex_unlock(priv->arrange_lock);
        g_mutex_free(priv->arrange_lock);
        priv->arrange_lock = NULL;
        
+       /* Unref input queues */
+       g_async_queue_unref(priv->char_input_queue);
+       g_async_queue_unref(priv->line_input_queue);
+       
        /* Free private data */
        pango_font_description_free(priv->default_font_desc);
        pango_font_description_free(priv->monospace_font_desc);
        g_free(priv->current_dir);
-       g_hash_table_destroy(priv->default_styles);
+       g_hash_table_destroy(priv->default_styles->text_buffer);
+       g_hash_table_destroy(priv->default_styles->text_grid);
+       g_hash_table_destroy(priv->current_styles->text_buffer);
+       g_hash_table_destroy(priv->current_styles->text_grid);
        
     G_OBJECT_CLASS(chimara_glk_parent_class)->finalize(object);
 }
@@ -610,8 +621,8 @@ chimara_glk_class_init(ChimaraGlkClass *klass)
      * ChimaraGlk::stopped:
      * @glk: The widget that received the signal
      *
-     * The ::stopped signal is emitted when the a Glk program finishes
-     * executing in the widget, whether it ended normally, or was interrupted.
+     * Emitted when the a Glk program finishes executing in the widget, whether
+     * it ended normally, or was interrupted.
      */ 
     chimara_glk_signals[STOPPED] = g_signal_new("stopped", 
         G_OBJECT_CLASS_TYPE(klass), 0, 
@@ -622,31 +633,60 @@ chimara_glk_class_init(ChimaraGlkClass *klass)
         * ChimaraGlk::started:
         * @glk: The widget that received the signal
         *
-        * The ::started signal is emitted when a Glk program starts executing in
-        * the widget.
+        * Emitted when a Glk program starts executing in the widget.
         */
        chimara_glk_signals[STARTED] = g_signal_new ("started",
                G_OBJECT_CLASS_TYPE(klass), 0,
                G_STRUCT_OFFSET(ChimaraGlkClass, started), NULL, NULL,
                g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
-       
+       /**
+        * ChimaraGlk::waiting:
+        * @glk: The widget that received the signal
+        * 
+        * Emitted when glk_select() is called by the Glk program and the event
+        * queue is empty, which means that the widget is waiting for input.
+        */
        chimara_glk_signals[WAITING] = g_signal_new("waiting",
                G_OBJECT_CLASS_TYPE(klass), 0,
                G_STRUCT_OFFSET(ChimaraGlkClass, waiting), NULL, NULL,
                g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
-
+       /**
+        * ChimaraGlk::char-input:
+        * @glk: The widget that received the signal
+        * @window_rock: The rock value of the window that received character input
+        * (see <link linkend="chimara-Rocks">Rocks</link>)
+        * @keysym: The key that was typed, in the form of a key symbol from 
+        * <filename class="headerfile">gdk/gdkkeysyms.h</filename>
+        * 
+        * Emitted when a Glk window receives character input.
+        */
        chimara_glk_signals[CHAR_INPUT] = g_signal_new("char-input",
                G_OBJECT_CLASS_TYPE(klass), 0,
                G_STRUCT_OFFSET(ChimaraGlkClass, char_input), NULL, NULL,
                chimara_marshal_VOID__UINT_UINT,
                G_TYPE_NONE, 2, G_TYPE_UINT, G_TYPE_UINT);
-
+       /**
+        * ChimaraGlk::line-input:
+        * @glk: The widget that received the signal
+        * @window_rock: The rock value of the window that received line input (see
+        * <link linkend="chimara-Rocks">Rocks</link>)
+        * @text: The text that was typed
+        * 
+        * Emitted when a Glk window receives line input.
+        */
        chimara_glk_signals[LINE_INPUT] = g_signal_new("line-input",
                G_OBJECT_CLASS_TYPE(klass), 0,
                G_STRUCT_OFFSET(ChimaraGlkClass, line_input), NULL, NULL,
                chimara_marshal_VOID__UINT_STRING,
                G_TYPE_NONE, 2, G_TYPE_UINT, G_TYPE_STRING);
-
+       /**
+        * ChimaraGlk::text-buffer-output:
+        * @glk: The widget that received the signal
+        * @window_rock: The rock value of the window that was printed to (see <link
+        * linkend="chimara-Rocks">Rocks</link>)
+        * 
+        * Emitted when text is printed to a text buffer window.
+        */
        chimara_glk_signals[TEXT_BUFFER_OUTPUT] = g_signal_new("text-buffer-output",
                G_OBJECT_CLASS_TYPE(klass), 0,
                G_STRUCT_OFFSET(ChimaraGlkClass, text_buffer_output), NULL, NULL,
@@ -1012,6 +1052,9 @@ glk_enter(struct StartupData *startup)
        extern GPrivate *glk_data_key;
        g_private_set(glk_data_key, startup->glk_data);
        
+       g_async_queue_ref(startup->glk_data->char_input_queue);
+       g_async_queue_ref(startup->glk_data->line_input_queue);
+       
        /* Run startup function */
        if(startup->glkunix_startup_code) {
                startup->glk_data->in_startup = TRUE;
@@ -1146,6 +1189,15 @@ chimara_glk_wait(ChimaraGlk *glk)
     g_thread_join(priv->thread);
 }
 
+/**
+ * chimara_glk_get_running:
+ * @glk: a #ChimaraGlk widget
+ * 
+ * Use this function to tell whether a program is currently running in the
+ * widget.
+ * 
+ * Returns: %TRUE if @glk is executing a Glk program, %FALSE otherwise.
+ */
 gboolean
 chimara_glk_get_running(ChimaraGlk *glk)
 {
@@ -1153,3 +1205,47 @@ chimara_glk_get_running(ChimaraGlk *glk)
        CHIMARA_GLK_USE_PRIVATE(glk, priv);
        return priv->running;
 }
+
+/**
+ * chimara_glk_feed_char_input:
+ * @glk: a #ChimaraGlk widget
+ * @keyval: a key symbol as defined in <filename 
+ * class="headerfile">gdk/gdkkeysyms.h</filename>
+ * 
+ * Pretend that a key was pressed in the Glk program as a response to a 
+ * character input request. You can call this function even when no window has
+ * requested character input, in which case the key will be saved for the 
+ * following window that requests character input. This has the disadvantage 
+ * that if more than one window has requested character input, it is arbitrary 
+ * which one gets the key press.
+ */
+void 
+chimara_glk_feed_char_input(ChimaraGlk *glk, guint keyval)
+{
+       g_return_if_fail(glk || CHIMARA_IS_GLK(glk));
+       CHIMARA_GLK_USE_PRIVATE(glk, priv);
+       g_async_queue_push(priv->char_input_queue, GUINT_TO_POINTER(keyval));
+       event_throw(glk, evtype_ForcedCharInput, NULL, 0, 0);
+}
+
+/**
+ * chimara_glk_feed_line_input:
+ * @glk: a #ChimaraGlk widget
+ * @text: text to pass to the next line input request
+ * 
+ * Pretend that @text was typed in the Glk program as a response to a line input
+ * request. @text does not need to end with a newline. You can call this 
+ * function even when no window has requested line input, in which case the text
+ * will be saved for the following window that requests line input. This has the 
+ * disadvantage that if more than one window has requested character input, it 
+ * is arbitrary which one gets the text.
+ */
+void 
+chimara_glk_feed_line_input(ChimaraGlk *glk, const gchar *text)
+{
+       g_return_if_fail(glk || CHIMARA_IS_GLK(glk));
+       g_return_if_fail(text);
+       CHIMARA_GLK_USE_PRIVATE(glk, priv);
+       g_async_queue_push(priv->line_input_queue, g_strdup(text));
+       event_throw(glk, evtype_ForcedLineInput, NULL, 0, 0);
+}